MANIFOLD, HEAT EXCHANGE APPARATUS AND MANIFOLD MANUFACTURING METHOD

CROSS-REFERENCE TO RELATED APPLICATION

[0001]This application claims foreign priority benefits under 35 U.S.C. § 119 to Chinese Patent Application No. 202410841058.2 filed on Jun. 26, 2024, the content of which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

[0002]The present invention relates to the technical field of heat exchange apparatuses, in particular to a manifold and a manifold manufacturing method, and a heat exchange apparatus provided with the manifold.

BACKGROUND

[0003]Heat exchange apparatuses normally comprise a round manifold and flat heat exchange tubes (i.e. flat tubes), each flat tube has a flow channel inside, and the flow channel communicates with the manifold at two ends of the flat tube respectively.

[0004]As shown in FIG. 1, a manifold in the prior art is normally a round tubular structure, and flat tubes are inserted in and communicate with the manifold. With existing techniques, since an end face of a flat tube inserted in a manifold is near a central axis of the manifold (the centre of the circular cross section of the manifold), and the flat tube occupies almost half the flow area in the manifold, when a heat exchange apparatus operates, actual refrigerant in the manifold greatly decreases in pressure.

[0005]Therefore, how to reduce a decrease in pressure of refrigerant in a manifold of a heat exchange apparatus is currently a technical problem for a person skilled in the art which needs to be solved urgently.

SUMMARY

[0006]In view of this, the present invention provides a manifold and a manifold manufacturing method, and a heat exchange apparatus that is provided with the manifold, able to increase an effective flow area inside the manifold, reducing a decrease in pressure of refrigerant after flowing through the manifold.

[0007]To achieve the object of the invention described above, the present invention provides the following technical solutions:

[0008]A manifold, a flow section of the manifold comprising at least one linear side, the linear side being formed by a clamping plate, and another side being formed by a first tube member; sidewalls of the first tube member are provided in a direction parallel to a central axis with a first opening for mounting the clamping plate; in the first tube member, a first clamping slot is provided on an inner surface near a first edge of the first opening, and a second clamping slot is provided on an inner surface near a second edge of the first opening; and the second edge is provided with a first guiding inclined face, one end of the first guiding inclined face being connected to the second clamping slot, and another end extending away from the second clamping slot and away from the first clamping slot; the clamping plate is a linear flat plate structure, and two sides thereof are respectively detachably connected to the first tube member by means of the first clamping slot and the second clamping slot.

[0009]Optionally, in the manifold, the second edge is provided with a first guiding inclined face, one end of the first guiding inclined face being connected to the second clamping slot, and another end extending toward a region outside the first opening away from the second clamping slot and away from the first clamping slot.

[0010]Optionally, in the manifold, inner and outer surfaces of the first tube member are all free of solder composite layers;

[0011]and/or at least one side face of the clamping plate has a solder composite layer.

[0015]Optionally, in the manifold, a first snap-fitting face of the first clamping slot near the second sidewall protrudes relative to an inner side face of the first sidewall to form a first stop part;

[0016]and/or a third snap-fitting face of the second clamping slot near the second sidewall protrudes relative to an inner side face of the third sidewall to form a second stop part.

[0017]Optionally, in the manifold, one end of the first sidewall remote from the second sidewall is provided with a second guiding inclined face; that is, the first edge is provided with a second guiding inclined face, one end of the second guiding inclined face being connected to the first clamping slot, and another end extending toward a region outside the first opening away from the first clamping slot and away from the second clamping slot.

[0018]Optionally, in the manifold, a main body thickness of the first sidewall is t, a depth of the first clamping slot is h, and a distance between a second snap-fitting face of the first clamping slot remote from the second sidewall and the second sidewall is L, wherein 0.02×L/t<h<0.1×L/t;

[0019]and/or a main body thickness of the third sidewall is t, a depth of the second clamping slot is h, and a distance between a fourth snap-fitting face of the second clamping slot remote from the second sidewall and the second sidewall is L, wherein 0.02×L/t<h<0.1×L/t.

[0020]Optionally, in the manifold, the clamping plate is provided in a direction perpendicular to the central axis of the first tube member with multiple second openings for end parts of a heat exchange tube to pass through; moreover, an inner side face and/or an outer side face of the clamping plate is provided with a boss that surrounds the second opening.

[0021]Optionally, the manifold further comprises an annular end cover, the annular end cover being mounted on an end part of the manifold.

[0022]Optionally, in the manifold, the annular end cover comprises an insertion part, the insertion part being inserted in an end part tube opening of the manifold, and being soldered to an inner wall of the manifold.

[0023]Optionally, in the manifold, the annular end cover further comprises a rim part, the rim part being located on a radial outer side of the insertion part, and being located outside the end part tube opening of the manifold and axially limited with the end part of the manifold.

[0024]Optionally, in the manifold, a surface of the annular end cover is provided with a solder composite layer.

[0034]It can be seen from the above technical solutions that in the manifold and the heat exchange apparatus provided by the present invention, from the cross section of the manifold, since the flat tube is mounted in the clamping plate, and the clamping plate is a linear flat plate structure and forms a side face of the manifold, a tube opening of the flat tube only needs to be thick enough to pass through the clamping plate itself to realize communication with an interior passage of the manifold, and therefore the flat tube does not need to be inserted too deeply in the manifold and also does not need to occupy an excessive flow area in the manifold, thereby preventing the flat tube from obstructing the flow section inside the manifold; when the volume of the manifold is constant, a maximum effective flow area can be achieved, reducing a decrease in pressure of refrigerant in the manifold.

[0035]In addition, with the manifold manufacturing method provided by the present invention, used for manufacturing the manifold in the heat exchange apparatus, not only can a manifold with small pressure reduction be produced, but also the operation is convenient and the efficiency is high.

BRIEF DESCRIPTION OF THE DRAWINGS

[0036]To explain the technical solutions in embodiments of the present invention or in the prior art more clearly, there follows a simple description of the accompanying drawings that need to be used in description of embodiments or the prior art. Obviously, the drawings in the description below are only some embodiments of the present invention, and a person skilled in the art could obtain other drawings based on these drawings without expending any inventive effort.

[0037]FIG. 1 is a structural schematic drawing of a heat exchange apparatus in the prior art.

[0038]FIG. 2 is a structural schematic drawing of a heat exchange apparatus provided by an embodiment of the present invention.

[0039]FIG. 3 is a main view of a heat exchange apparatus provided by an embodiment of the present invention.

[0040]FIG. 4 is an axonometric drawing of a heat exchange apparatus provided by an embodiment of the present invention.

[0041]FIG. 5 is a top view of a heat exchange apparatus provided by an embodiment of the present invention.

[0042]FIG. 6 and FIG. 7 are respectively sectional structural schematic drawings of two tube members with different openings provided by embodiments of the present invention.

[0043]FIG. 8 is an assembly process schematic diagram of a first tube member and a mounting plate provided by an embodiment of the present invention.

[0044]FIG. 9 is a structural schematic drawing of a clamping plate provided by an embodiment of the present invention.

[0045]FIG. 10 is a structural schematic drawing of a flat tube provided by an embodiment of the present invention.

[0046]FIG. 11 and FIG. 12 are respectively an axonometric drawing and a side view of an annular end cover provided by an embodiment of the present invention.

DETAILED DESCRIPTION

[0057]The present invention provides a manifold and a manifold manufacturing method, and a heat exchange apparatus that is provided with the manifold, able to increase an effective flow area inside the manifold by means of a manifold structure of a specific shape, reducing a decrease in pressure of refrigerant after flowing through the manifold.

[0058]The technical solutions in embodiments of the present invention are described clearly and completely below with reference to the drawings in embodiments of the present invention. Obviously, the embodiments described are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art on the basis of the embodiments in the present invention without any creative effort fall within the scope of protection of the present invention.

[0059]Referring to FIG. 3, the heat exchange apparatus provided by embodiments of the present invention comprises manifolds 1 and heat exchange tubes 2 (which specifically may be flat tubes), and further may comprise fins 3, wherein: two manifolds 1 are provided side by side in a first direction X; multiple heat exchange tubes 2 are provided side by side in a second direction Z that is perpendicular to the first direction X, and two ends of each heat exchange tube 2 respectively communicate with one manifold 1; the fins 3 are located between adjacent heat exchange tubes 2.

[0060]Moreover, referring to FIG. 2 and FIGS. 4 to 6, a flow section of the manifold 1 provided by embodiments of the present invention comprises at least one linear side, the linear side being formed by a clamping plate 12, and another side being formed by a first tube member 11; sidewalls of the first tube member 11 are provided in a direction parallel to a central axis with a first opening 110 for mounting the clamping plate 12; in the first tube member 11, a first clamping slot 112 is provided on an inner surface near a first edge the first opening 110, and a second clamping slot 116 is provided on an inner surface near a second edge of the first opening 110; the clamping plate 12 is a linear flat plate structure, and two sides thereof are respectively located inside the first clamping slot 112 and the second clamping slot 116 of the first tube member 11. When the manifolds 1 and heat exchange tubes 2 are assembled into a heat exchange apparatus, end parts of each heat exchange tube 2 respectively pass through a clamping plate 12 of one manifold 1 and extend into the manifold 1 and communicate with the interior of the manifold 1.

[0061]It can be seen that in the heat exchange apparatus and manifold 1 provided by embodiments of the present invention, from the cross section of the manifold 1, since the heat exchange tube 2 is mounted in the clamping plate 12, and the clamping plate 12 is a linear flat plate structure and forms a side face of the manifold 1, a tube opening of the heat exchange tube 2 only needs to be thick enough to pass through the clamping plate 12 itself to realize communication with an interior passage of the manifold 1, and therefore the heat exchange tube 2 does not need to be inserted too deeply in the manifold 1 and also does not need to occupy an excessive flow area in the manifold 1, thereby preventing the heat exchange tube 2 from obstructing the flow section inside the manifold 1; when the volume of the manifold is constant, a maximum effective flow area can be achieved, reducing a decrease in pressure of refrigerant in the manifold.

[0062]When specifically implemented, after the clamping plates 12 and the first tube members 11 are properly assembled, prefixing can be performed using a means such as spot-welding; next, heat exchange tubes 2 are mounted on the clamping plates 12, and fins 3 are fitted between adjacent heat exchange tubes 2; finally, the entire heat exchange apparatus is placed in a brazing furnace for brazing.

[0063]In some embodiments, since the heat exchange tube 2 is mounted on the clamping plate 12, and two sides of the clamping plate 12 are mounted in clamping slots at two sides of an opening of side faces of the first tube member, it is sufficient to only provide solder composite layers for soldering on the front and back of the clamping plate 12, and inner and outer surfaces of the first tube member 11 are free of solder composite layers; therefore, compared with providing solder composite layers on all sidewalls of a manifold 1 in the prior art, the present invention can reduce the use of solder composite layers, and is thus beneficial for saving on materials and reducing costs. When specifically implemented, a solder composite layer may only be on the front or the back of the clamping plate 12, or may be provided on the front and back of the clamping plate 12 simultaneously.

[0064]In some embodiments, the flow section of the manifold 1 may be rectangular; see FIG. 2 for details of the rectangular cross section thereof. Furthermore, referring to FIGS. 4 to 8: sidewalls of the first tube member 11 are provided in a direction parallel to an axis with a first opening 110, and the sidewalls of the first tube member 11 form three sides of a rectangle; the clamping plate 12 is mounted in the first opening 110, forming the other side of the rectangle. The first tube member 11 comprises a first sidewall 11a, a second sidewall 11b and a third sidewall 11c that are connected in sequence, the first sidewall 11a being parallel to the third sidewall 11c, and the second sidewall 11b being parallel to the clamping plate 12. Moreover, an inner side of one end of the first sidewall 11a that is remote from the second sidewall 11b is provided with the first clamping slot 112, the first clamping slot 112 being located at one side of the first opening 110 and extending parallel to the central axis of the first tube member 11, and being capable of connecting to a first side 12a of the clamping plate 12 by insertion; one end of the third sidewall 11c that is remote from the second sidewall 11b is provided with the second clamping slot 116, the second clamping slot 116 being located at another side of the first opening 110 and extending parallel to the central axis of the first tube member 11, and being capable of connecting to a second side 12b of the clamping plate 12 by insertion. Here it should be explained that, in the rectangle mentioned herein, the cross section at corners thereof may be a right angled structure formed by two intersecting straight lines, or at the corners may be provided a round cornered chamfer with an arc chamfer cross section or an oblique chamfer with a rectilinear chamfer cross section.

[0065]Furthermore, referring to FIGS. 6 to 8, in some embodiments, a first snap-fitting face 1121 of the first clamping slot 112 near the second sidewall 11b protrudes relative to an inner side face of the first sidewall 11a to form a first stop part 111. That is, an inner side face of the first sidewall 11a protrudes to have the first stop part 111; the first stop part 111 is located at one side of the first clamping slot 112 near the second sidewall 11b, and forms a side face, i.e. the first snap-fitting face 1121, inside the first clamping slot 112. Moreover, two side faces that are opposite each other in the first clamping slot 112 are respectively the first snap-fitting face 1121 and a second snap-fitting face 1122, wherein a Y direction dimension of the first snap-fitting face 1121 is greater than a Y direction dimension of the second snap-fitting face 1122; that is, the first stop part 111 has a protruding height g>zero; the Y direction dimension of the second snap-fitting face 1122 is a depth h of the first clamping slot 112.

[0066]By the same reasoning, a third snap-fitting face 1161 of the second clamping slot 116 near the second sidewall 11b protrudes relative to an inner side face of the third sidewall 11c to form a second stop part 115. That is, an inner side face of the third sidewall 11c protrudes to have the second stop part 115; the second stop part 115 is located at one side of the second clamping slot 116 near the second sidewall 11b, and forms a side face, i.e. the third snap-fitting face 1161, inside the second clamping slot 116. Moreover, two side faces that are opposite each other in the second clamping slot 116 are respectively the third snap-fitting face 1161 and a fourth snap-fitting face 1162, wherein a Y direction dimension of the third snap-fitting face 1161 is greater than a Y direction dimension of the fourth snap-fitting face 1162; that is, the second stop part 115 has a protruding height g>zero; the Y direction dimension of the fourth snap-fitting face 1162 is a depth h of the second clamping slot 116.

[0067]When specifically implemented, a side of the first stop part 111 that is remote from the second sidewall 11b, i.e. a side that forms an inner side face of the first clamping slot 112, i.e. the first snap-fitting face 1121, can be made a planar structure that is perpendicular to the first sidewall 11a; a side surface of the first stop part 111 that is near the second sidewall 11b and remote from the first clamping slot 112 is designed to have the shape of an arc or inclined face, so that the first stop part 111 becomes gradually thicker from the top to the base, thereby ensuring that the first stop part 111 has sufficient strength and is able to effectively stop the clamping plate 12, preventing the clamping plate 12 from sliding into the flow section inside the manifold 1. By the same reasoning, a side of the second stop part 115 that is remote from the second sidewall 11b, i.e. a side that forms an inner side face of the second clamping slot 116, i.e. the third snap-fitting face 1161, can be made a planar structure that is perpendicular to the third sidewall 11c; a side surface of the second stop part 115 that is near the second sidewall 11b and remote from the second clamping slot 116 is designed to have the shape of an arc or inclined face, so that the second stop part 115 becomes gradually thicker from the top to the base, thereby ensuring that the second stop part 115 has sufficient strength and is able to effectively stop the clamping plate 12, preventing the clamping plate 12 from sliding into the flow section inside the manifold 1. However, there is no limitation to this; in other embodiments, the first stop part 111 and the second stop part 115 can also be designed as stepped thickened structures, which can also achieve the functions of increased height and stopping.

[0068]Referring to FIG. 6, in some embodiments, the second edge of the first opening 110 of the first tube member 11 is provided with a first guiding inclined face 118; that is, one end of the third sidewall 11c remote from the second sidewall 11b is provided with a first guiding inclined face 118. One end of the first guiding inclined face 118 is connected to the second clamping slot 116, and another end extends toward a region outside the first opening 110 away from the second clamping slot 116 and away from the first clamping slot 112. Moreover, the second clamping slot 116 and the first guiding inclined face 118 are both located at one end of the third sidewall 11c remote from the second sidewall 11b, located on the same side of the first opening 110, and both extend parallel to the central axis of the first tube member 11. Furthermore, referring to FIGS. 6 and 7, in some embodiments, one end of the first sidewall 11a remote from the second sidewall 11b is not only provided with the first clamping slot 112 but also with a second guiding inclined face 114; one end of the second guiding inclined face 114 is connected to the first clamping slot 112, and another end extends toward a region outside the first opening 110 away from the first clamping slot 112 and away from the second clamping slot 116. Thus, when assembling the first tube member 11 and the clamping plate 12, the first side 12a of the clamping plate 12 can first be inserted into the first clamping slot 112, and then the second side 12b of the clamping plate 12 can be caused to slide into the second clamping slot 116 by means of the first guiding inclined face 118 under the effect of an external force F; the second side 12b of the clamping plate 12 can also first be inserted into the second clamping slot 116, and then the first side 12a of the clamping plate 12 can be caused to slide into the first clamping slot 112 by means of the second guiding inclined face 114 under the effect of an external force.

[0069]In some embodiments, letting a main body thickness of the first sidewall 11a be t, a depth of the first clamping slot 112 be h, a distance between the second snap-fitting face 1122 of the first clamping slot 112 remote from the second sidewall 11b and the second sidewall 11b be L, then 0.02×L/t<h<0.1×L/t; and/or, letting a main body thickness of the third sidewall 11c be t, a depth of the second clamping slot 116 be h, and a distance between the fourth snap-fitting face 1162 of the second clamping slot 116 remote from the second sidewall 11b and the second sidewall 11b be L, then 0.02×L/t<h<0.1×L/t. In actual applications, the depth h of the first clamping slot 112 and the second clamping slot 116 cannot be too small; otherwise, when stress is released in a soldering process, the clamping plate 12 easily comes out from the clamping slot. Moreover, the depth h of the first clamping slot 112 and the second clamping slot 116 also cannot be too large; otherwise, during assembly of the clamping plate 12 and the first tube member 11, the first tube member 11 becomes too deformed to be restorable, with the result that the clamping plate 12 and the clamping slot cannot fit together properly. Therefore, in a preferred embodiment, 0.02×L/t<h<0.1×L/t, in which case the clamping plate 12 and the first tube member 11 have the best solder quality.

[0070]Referring to FIGS. 4 and 9, when specifically implemented, the clamping plate 12 is in a direction parallel to the central axis of the first tube member 11, i.e. the Z direction in FIG. 4, and simultaneously is also provided with multiple second openings 120 arranged transversely in sequence in FIG. 9. When assembling the heat exchange apparatus, multiple heat exchange tubes 2 are in one-to-one correspondence with the second openings 120 on the clamping plate 12; after respectively passing through a second opening 120, end parts of each heat exchange tube 2 can extend into the manifold 1 and communicate with an interior cavity of the manifold 1.

[0071]Furthermore, as shown in FIG. 10, in some preferred embodiments, an inner side face and/or outer side face of the clamping plate 12 is provided with a boss 1201 that surrounds the second opening 120. By means of the boss 1201, without increasing the overall thickness of the clamping plate, an area of a contact surface between the heat exchange tube 2 and the clamping plate 12 can be increased, which is not only advantageous for ensuring a stable connection between the heat exchange tube 2 and the clamping plate 12, but is also advantageous for improving sealing at the joint of the heat exchange tube 2 and the clamping plate 12.

[0072]In some embodiments, an end part of the manifold 1 is further provided with an annular end cover 4. Referring to FIGS. 11 and 12, the annular end cover 4 comprises an insertion part 41 and a rim part 42. The insertion part 41 can be inserted in an end part tube opening of the manifold 1, and soldered to an inner wall of the manifold 1; the rim part 42 is located at a radial outer side of the insertion part 41, and is located outside the end part tube opening of the manifold 1 and can be axially limited with the end part of the manifold 1. By mounting the annular end cover 4 at the end part tube opening of the manifold 1, the first tube member 11 and the clamping plate 12 can be positioned and sealed at the manifold end part. However, there is no limitation to this; in other embodiments, the annular end cover 4 can also be made to have only an insertion part 41 and not a rim part 42, as long as it can be adapted to the shape of the end part tube opening of the manifold 1.

[0073]When specifically implemented, a surface of the annular end cover 4 has a solder composite layer. During assembly, the insertion part 41 of the annular end cover 4 is inserted into the end part tube opening of the manifold 1, and fits with an inner surface of the manifold 1; next, by means of solder at a contact surface of the insertion part 41 and the manifold 1, the two are soldered together. In addition, a lower surface of the rim part 42 of the annular end cover 4 fits with an end face of the clamping plate 12 and the first tube member 11, and by means of solder on the rim part 42 at this fitting face, or by means of providing solder on the manifold end face, the annular end cover 4 is soldered to the end part tube opening of the manifold 1.

[0074]In addition, embodiments of the present invention further provide a manifold manufacturing method, used for forming a manifold 1 in a heat exchange apparatus by combining the first tube member 11 and the clamping plate 12 mentioned above. A flow section of the manifold 1 comprises at least one linear side, the linear side being formed by a clamping plate 12, and another side being formed by a first tube member 11; sidewalls of the first tube member 11 are provided in a direction parallel to a central axis with a first opening 110; in the first tube member 11, a first clamping slot 112 is provided on an inner surface near a first edge of the first opening 110, and the second clamping slot 116 is provided on an inner surface near a second edge of the first opening 110.

[0075]Specifically, referring to FIG. 8, the manifold manufacturing method provided by embodiments of the present invention at least comprises the following steps: S1) inserting a first side 12a of the clamping plate 12 into the first clamping slot 112 of the manifold 1 (the first clamping slot 112 being located at the first edge of the first opening 110 of the manifold 1), and the second side 12b of the clamping plate 12 being located outside the second clamping slot 116 of the second edge of the first opening 110 of the manifold 1 and abutting the second edge; and S2) pressing the clamping plate 12 to squeeze the second edge of the first opening 110, to cause the first tube member 11 to elastically deform, enlarging the first opening 110 at the sidewall of the first tube member 11, until the second side 12b of the clamping plate 12 slides into the second clamping slot 116. At this stage, the first tube member 11 is restored to its original shape under its own elastic restoring force, and snap-fitting of the clamping plate 12 and the first tube member 11 is completed. It can be seen that in the manifold manufacturing method provided by embodiments of the present invention, only the two steps of insertion and pressing are needed to assemble the clamping plate 12 and the first tube member 11; the operation thereof is convenient and highly efficient, and the requirement for the level of specialization of a technician is low. Furthermore, regarding the manifold 1 completed with the above assembly process, according to actual requirements, an annular end cap 4 can further be mounted and a soldering procedure performed.

[0076]In some embodiments, when the second edge of the first opening 110 of the manifold 1 is provided with a first guiding inclined face 118, in step S1 mentioned above: the second side 12b of the clamping plate 12 abuts the first guiding inclined face 118; in step S2 mentioned above: when the clamping plate 12 is pressed to squeeze the second edge of the first opening 110 of the manifold 1, the second side 12b of the clamping plate 12 can be caused to slide along the first guiding inclined face 118 into the second clamping slot 116. It can be seen that the first guiding inclined face 118 can facilitate an assembly operation of the manifold 1.

[0077]Here it should be explained that, in other embodiments, the first tube member 11 can also be designed as a C-shaped tube with a C-shaped cross section, or a U-shaped tube with a U-shaped cross section, or a trapezoidal tube with a trapezoidal top opening/bottom opening cross section, or a tube with another polygonal cross section, such as trapezoidal, triangular, pentagonal, hexagonal, etc., and a trapezoidal tube with an open side. When specifically implemented, a person skilled in the art specifically designs the specific shape of the first tube member according to actual requirements, and the present invention imposes no specific limitation regarding this.

[0078]Finally, it should further be explained that relationship terms such as “first” and “second” as used herein are merely intended to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, terms “comprise” and “include”, or any other variant thereof, are intended to cover non-exclusive inclusion, so that a process, method, article or device which comprises a series of key elements does not comprise these key elements alone, but also comprises other key elements which are not listed explicitly.

[0079]The embodiments herein are described in a progressive manner, and the emphasis of each embodiment is to describe differences from other embodiments. For parts in different embodiments that are the same or similar, the corresponding embodiment may be referred to.

[0080]With the above description of the disclosed embodiments, a person skilled in the art can implement or use the present invention. Various modifications to these embodiments would be obvious to a person skilled in the art; the general principle defined herein can be realized in other embodiments without departing from the spirit and scope of the present invention. Therefore, the present invention is not restricted to these embodiments illustrated herein, rather is to be in accord with the widest scope consistent with the principles and novel characteristics disclosed herein.

[0081]While the present disclosure has been illustrated and described with respect to a particular embodiment thereof, it should be appreciated by those of ordinary skill in the art that various modifications to this disclosure may be made without departing from the spirit and scope of the present disclosure.