Plate heat exchanger, heat management system and vehicle

Abstract

The invention relates to the technical field of heat exchange equipment, and discloses a plate heat exchanger, a heat management system and a vehicle, the plate heat exchanger comprises a heat exchange body, and the heat exchange body defines a first channel and a second channel; the flow guide pipe is matched with the heat exchange body and comprises a pipe body and a partition part, at least one part of the partition part is arranged in the pipe body and used for at least dividing the interior of the pipe body into a first inflow runner, a first outflow runner, a second inflow runner and a second outflow runner, and the pipe body is provided with a first inlet, a first outlet, a second inlet and a second outlet; the first inflow runner and the first outflow runner are respectively communicated with the first channel through a first inlet and a first outlet, and the second inflow runner and the second outflow runner are respectively communicated with the second channel through a second inlet and a second outlet. According to the plate heat exchanger, various kinds of fluid can enter and exit from the flow guide pipe at the same time, and therefore the number of connectors and the number of matched pipes on the plate heat exchanger can be reduced, and the structure is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange equipment, and in particular to a plate heat exchanger, a thermal management system and a vehicle. Background Art

[0002] In the related art, inter-plate flow channels are formed between the plates of the plate heat exchanger, which are connected to the corresponding flow channels through multiple different pipelines to form a loop. Therefore, the overall structure includes multiple plates and multiple pipes, which has a complex structure and requires more joints in subsequent use, so there is room for improvement. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a plate heat exchanger, which has a simple structure and is easy to manufacture and assemble.

[0004] The invention also provides a thermal management system.

[0005] The present invention also provides a vehicle.

[0006] A plate heat exchanger according to an embodiment of the first aspect of the present invention includes: a heat exchange body, which is defined by a first channel and a second channel; a flow guide tube, which cooperates with the heat exchange body and includes a tube body and a partition, at least a portion of the partition is arranged in the tube body for at least separating the tube body into a first inlet channel, a first outlet channel, a second inlet channel and a second outlet channel, the tube body having a first inlet, a first outlet, a second inlet and a second outlet corresponding to the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel, wherein the first inlet channel and the first outlet channel are connected to the first channel through the first inlet and the first outlet, respectively, and the second inlet channel and the second outlet channel are connected to the second channel through the second inlet and the second outlet, respectively.

[0007] According to the plate heat exchanger of the embodiment of the present invention, a flow guide tube with multiple flow channels is provided so that the flow guide tube can simultaneously flow in and out multiple fluids, thereby reducing the number of joints and the number of pipes on the plate heat exchanger, simplifying the structure of the plate heat exchanger, reducing the manufacturing cost, and facilitating assembly; at the same time, the number of openings on the heat exchange body can be reduced, thereby increasing the heat exchange area, making the fluid flow more uniform, and improving the heat exchange efficiency of the plate heat exchanger.

[0008] In some embodiments, the partition comprises a plurality of partitions, each of which extends along the axial direction of the tube body, a flow channel is defined between two adjacent partitions, and each of which extends along the axial direction of the tube body.

[0009] In some embodiments, one side of the plurality of partitions is located in the middle of the tube body and is connected to each other, and the other side of each of the partitions is connected to the inner wall surface of the tube body.

[0010] In some embodiments, two adjacent partitions are arranged vertically.

[0011] In some embodiments, two adjacent partitions are connected by circular arc transition, and / or the partition is connected to the inner wall surface of the tube body by circular arc transition.

[0012] In some embodiments, the first inlet and the first outlet are staggered in the axial direction of the tube body and spaced apart in the circumferential direction of the tube body; the second inlet and the second outlet are staggered in the axial direction of the tube body and spaced apart in the circumferential direction of the tube body.

[0013] In some embodiments, the first inlet, the second inlet, the first outlet, and the second outlet are arranged at intervals along a spiral line in the circumferential direction of the tube body.

[0014] In some embodiments, the heat exchange body includes a plurality of heat exchange plates, which are stacked and arranged, a portion of the first channel or the second channel is defined between two adjacent heat exchange plates, and the first inlet, the first outlet, the second inlet and the second outlet are respectively located between two adjacent heat exchange plates.

[0015] In some embodiments, the heat exchange body has a mounting through hole, the mounting through hole passes through the plurality of heat exchange plates, and the flow guide pipe is inserted into the mounting through hole and cooperates with the heat exchange body.

[0016] In some embodiments, the plurality of heat exchange plates include a first heat exchange plate, a second heat exchange plate, a third heat exchange plate and a fourth heat exchange plate arranged in sequence, a portion of the first channel is defined between the first heat exchange plate and the second heat exchange plate, a portion of the first channel is defined between the third heat exchange plate and the fourth heat exchange plate, the second heat exchange plate cooperates with the third heat exchange plate and forms a first connecting port, a portion of the first channel is connected to a portion of the first channel through the first connecting port; a portion of the second channel is defined between the first heat exchange plate and the adjacent fourth heat exchange plate, a portion of the second channel is defined between the second heat exchange plate and the third heat exchange plate, the first heat exchange plate cooperates with the second heat exchange plate and forms a second connecting port, a portion of the second channel is connected to a portion of the second channel through the second connecting port.

[0017] In some embodiments, projections of the first communication port and the second communication port on any plane where the heat exchange plate is located do not overlap.

[0018] In some embodiments, the heat exchange body has a first side and a second side arranged relatively to each other. Among the two adjacent heat exchange plates, one heat exchange plate has a first boss protruding toward the first side, and the other heat exchange plate has a first groove recessed toward the second side. The first boss and the first groove correspond to each other in position. The first boss and the first groove of an adjacent heat exchange plate abut against each other and form the first connecting port. The first boss and the first groove of the other adjacent heat exchange plate are arranged at intervals.

[0019] In some embodiments, the bottom wall of the first groove has a first retaining ring extending toward the second side, the middle portion of the first boss has a first avoidance hole, and the first retaining ring is plug-fitted with the first avoidance hole to define the first connecting port.

[0020] In some embodiments, among two adjacent heat exchange plates, one of the heat exchange plates has a second groove recessed toward the second side, and the other heat exchange plate has a second boss protruding toward the first side, the second boss and the second groove correspond in position, the second groove and the first boss are arranged on the same heat exchange plate, the second boss and the first groove, the second groove abuts against the second boss of an adjacent heat exchange plate and forms the second connecting port, and the second groove is spaced apart from the second boss of the other adjacent heat exchange plate.

[0021] In some embodiments, the bottom wall of the second groove has a second retaining ring extending toward the second side, the middle portion of the second boss has a second avoidance hole, and the second retaining ring is plug-fitted with the second avoidance hole to define the second connecting port.

[0022] The thermal management system according to the second embodiment of the present invention includes the plate heat exchanger according to the first embodiment of the present invention. By adopting the above-mentioned plate heat exchanger, the number of joints and the number of pipes on the plate heat exchanger are reduced, which facilitates the assembly of the thermal management system and reduces the manufacturing cost. At the same time, the heat exchange area of ​​the heat exchange body is increased, the fluid flows more evenly, and the heat exchange efficiency of the thermal management system is improved.

[0023] The vehicle according to the third aspect of the present invention comprises a plate heat exchanger according to the first aspect of the present invention or a thermal management system according to the second aspect of the present invention. By adopting the plate heat exchanger, the number of joints and the number of pipes on the plate heat exchanger are reduced, which facilitates the assembly of the plate heat exchanger on the vehicle and reduces the manufacturing cost. At the same time, the heat exchange area of ​​the heat exchange body is increased, the fluid flows more evenly, and the heat exchange efficiency of the vehicle is improved.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic structural diagram of a plate heat exchanger according to an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a flow guide tube according to an embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of a partial structure of a flow guide pipe according to an embodiment of the present invention;

[0029] Figure 4 is a front view of a flow guide tube according to an embodiment of the present invention;

[0030] Figure 5 is a rear view of a flow guide tube according to an embodiment of the present invention;

[0031] Figure 6 is a schematic diagram of a partial structure of a plate heat exchanger according to an embodiment of the present invention;

[0032] Figure 7 yes Figure 6 a top view of the structure shown;

[0033] Figure 8 is along Figure 7 Sectional view along line AA;

[0034] Fig. 9 yes Figure 8 The middle circle shows an enlarged view of the structure at C;

[0035] Fig.10 is along Figure 7 Sectional view along the midline BB;

[0036] Fig.11 yes Fig.10 The middle circle shows an enlarged view of the structure at D.

[0037] Reference numerals:

[0038] Plate heat exchanger 100,

[0039] The heat exchange body 10, the first side 10a, the second side 10b, the first channel 101, the second channel 102, the mounting through hole 103,

[0040] Heat exchange plate 11, first plate channel 11a, second plate channel 11b, third plate channel 11c, fourth plate channel 11d,

[0041] The first heat exchange plate 121, the second heat exchange plate 122, the third heat exchange plate 123, the fourth heat exchange plate 124,

[0042] The first boss 131, the second groove 132, the second retaining ring 1321,

[0043] The first groove 141, the first retaining ring 1411, the second boss 142,

[0044] The first communication port 15, the second communication port 16,

[0045] The guide pipe 20 , the pipe body 21 , the partition 22 , the partition plate 221 , the first inlet flow channel 201 , the first outlet flow channel 202 , the second inlet flow channel 203 , the second outlet flow channel 204 , the first inlet 211 , the first outlet 212 , the second inlet 213 , and the second outlet 214 . DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Reference below Figure 1-Figure 11 A plate heat exchanger 100 according to an embodiment of the present invention is described.

[0050] like Figure 1-Figure 11 As shown, a plate heat exchanger 100 according to an embodiment of the present invention comprises: a heat exchange body 10 and a flow guide 20, the heat exchange body 10 is defined with a first channel 101 and a second channel 102, the first channel 101 is used to pass a fluid, and the second channel 102 is used to pass another fluid, for example, one is a refrigerant and the other is a cooling liquid, the refrigerant and the cooling liquid perform heat exchange to achieve heat exchange; the flow guide 20 cooperates with the heat exchange body 10, and the flow guide 20 comprises a pipe body 21 and a partition 22, at least a portion of the partition 22 is arranged on the pipe body 21, the partition 22 can at least separate the tube body 21 into a first inlet flow channel 201, a first outflow flow channel 202, a second inlet flow channel 203 and a second outflow flow channel 204. That is to say, under the separation of the partition 22, the tube body 21 has at least four flow channels, including only four or more flow channels. For example, when the heat exchange body 10 is limited to two channels, four flow channels can be separated in the tube body 21; when the heat exchange body 10 is limited to three channels, six flow channels can be separated in the tube body 21.

[0051] Taking the example of four flow channels in the tube body 21, specifically, the tube body 21 has a first inlet 211, a first outlet 212, a second inlet 213 and a second outlet 214. The first inlet 211 is correspondingly connected to the first inlet channel 201, the first outlet 212 is correspondingly connected to the first outflow channel 202, the second inlet 213 is correspondingly connected to the second inlet channel 203, and the second outlet 214 is correspondingly connected to the second outflow channel 204.

[0052] Among them, the first inlet channel 201 can be connected to the first channel 101 through the first inlet 211, and the first outlet channel 202 is connected to the first channel 101 through the first outlet 212, so that a fluid can enter the guide tube 20 through the first inlet channel 201, enter the first channel 101 through the first inlet 211, and then flow to the first outflow channel 202 through the first outlet 212, and finally flow out of the guide tube 20 through the first outflow channel 202.

[0053] The second inlet channel 203 can be connected to the second channel 102 through the second inlet 213, and the second outlet channel 204 can be connected to the second channel 102 through the second outlet 214, so that another fluid can enter the guide tube 20 through the second inlet channel 203, enter the second channel 102 through the second inlet 213, and then flow to the second outflow channel 204 through the second outlet 214, and finally flow out of the guide tube 20 through the second outflow channel 204.

[0054] That is to say, the flow guide pipe 20 can be used as a distributor of the plate heat exchanger 100, so that multiple fluids can flow into multiple flow channels of the heat exchange body 10 to realize the diversion of multiple fluids. At the same time, the flow guide pipe 20 serves as the outlet of the plate heat exchanger 100, so that the fluid after heat exchange in the heat exchange body 10 can flow out through the flow guide pipe 20 to realize the flow of the fluid. Therefore, there is no need to set up multiple pipes for distributing the fluid, and only joints connected to the flow guide pipe 20 need to be set, thereby reducing the number of joints and the number of pipes. At the same time, compared with the situation in the prior art where multiple openings are opened at multiple corners of the heat exchange body 10 to connect the pipes, the number of openings on the heat exchange body 10 can also be reduced, thereby increasing the area that can be used for heat exchange, improving the utilization rate of the heat exchange body 10, and improving the heat exchange efficiency; and since the area where the fluid can flow on the heat exchange body 10 is increased, the fluid is more evenly distributed on the heat exchange body 10, further improving the heat exchange efficiency.

[0055] According to the plate heat exchanger 100 of the embodiment of the present invention, by providing a flow guide pipe 20 with multiple flow channels, the flow guide pipe 20 can simultaneously flow in and out multiple fluids, thereby reducing the number of joints and the number of pipes on the plate heat exchanger 100, simplifying the structure of the plate heat exchanger 100, reducing the manufacturing cost, and facilitating assembly; at the same time, the number of openings on the heat exchange body 10 can be reduced, thereby increasing the heat exchange area, making the fluid flow more uniform, and improving the heat exchange efficiency of the plate heat exchanger 100.

[0056] like Figure 2 and Figure 3 As shown, in some embodiments, the partition 22 includes a plurality of partitions 221, each partition 221 extends along the axial direction of the tube body 21, and a flow channel is defined between two adjacent partitions 221, so that each flow channel extends along the axial direction of the tube body 21, as shown in FIG. Figure 2 As shown, the first inlet channel 201, the first outlet channel 202, the second inlet channel 203 and the second outlet channel 204 extend in the up and down directions respectively, and the four channels are arranged at intervals along a circumference, thereby increasing the flow volume of each channel and facilitating the connection between each channel and the corresponding channel on the heat exchange body 10.

[0057] like Figure 3As shown, in some examples, the inner side of each partition 221 is located in the middle of the tube body 21, and the inner sides of multiple partitions 221 are interconnected, and the outer side of each partition 221 is connected to the inner wall surface of the tube body 21, thereby separating multiple flow channels in the tube body 21, and each flow channel is easily connected to the opening on the tube body 21. Since multiple partitions 221 are interconnected, the strength and stability of the partition 22 can be improved, thereby improving the strength and stability of the guide tube 20 and ensuring the distribution and diversion effects.

[0058] like Figure 3 As shown, in some specific examples, two adjacent partitions 221 are arranged vertically, so that the partition 22 can form a cross-shaped structure. When each partition 221 has the same size, the partition 22 can separate a plurality of flow channels of the same size.

[0059] It is understandable that by adjusting the structure of the partition 22 so as to change the size and shape of the flow channel, the pressure drop of the fluid can be changed to meet the needs of different working conditions, thereby achieving the purpose of reducing power, energy saving and consumption reduction.

[0060] like Figure 3 As shown, in some examples, two adjacent partitions 221 are connected by arc transition, thereby making the wall surface of the flow channel smooth, reducing friction, improving fluid flow efficiency, reducing resistance, etc.

[0061] like Figure 3 As shown, in some examples, the partition 221 is connected to the inner wall of the tube body 21 by a circular arc transition, thereby increasing the smoothness of the wall of the flow channel, reducing friction, improving fluid flow efficiency, reducing resistance, etc.

[0062] like Figure 4 and Figure 5 As shown, in some embodiments, the first inlet 211 and the first outlet 212 are arranged at intervals in the circumferential direction of the tube body 21 so as to communicate with the corresponding inflow channel and outflow channel; Figure 4 In the up and down direction shown in the figure, the first inlet 211 and the first outlet 212 are arranged alternately, so that the first inlet 211 and the first outlet 212 are located at different heights, so that the inlet and the outlet are connected to different positions of the heat exchange body 10, and the fluid flows into a part of the first channel 101 and flows out through another part of the first channel 101 after heat exchange, so as to achieve sufficient flow of the fluid, extend the flow path, improve the heat exchange effect, and avoid interference between the flow in and out processes.

[0063] like Figure 4 and Figure 5As shown, in some embodiments, the second inlet 213 and the second outlet 214 are arranged at intervals in the circumferential direction of the tube body 21 so as to communicate with the corresponding inflow channel and outflow channel; Figure 4 In the up and down direction shown in the figure, the second inlet 213 and the second outlet 214 are arranged alternately, so that the second inlet 213 and the second outlet 214 are located at different heights, so that the inlet and the outlet are connected to different positions of the heat exchange body 10, so that the fluid flows into a part of the second channel 102 and flows out through another part of the second channel 102 after heat exchange, so as to achieve sufficient flow of the fluid, extend the flow path, improve the heat exchange effect, and avoid interference between the flow in and out processes.

[0064] like Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the first inlet 211, the second inlet 213, the first outlet 212 and the second outlet 214 are arranged along a spiral line in the circumferential direction of the tube body 21, that is, along Figure 4 and Figure 5 In the clockwise direction indicated by the middle arrow, the second inlet 213 is located at the front upper side of the first inlet 211, the first outlet 212 is located at the front upper side of the second inlet 213, and the second outlet 214 is located at the front upper side of the first outlet 212. Thus, in the circumferential direction of the tube body 21, the first inlet 211, the second inlet 213, the first outlet 212 and the second outlet 214 are arranged at intervals. Figure 4 In the up and down direction shown in the figure, the first inlet 211, the second inlet 213, the first outlet 212 and the second outlet 214 are arranged at intervals and staggered, that is, in the axial direction of the tube body 21, they are arranged in a cycle in the form of the first inlet 211, the second inlet 213, the first outlet 212, the second outlet 214, the first inlet 211, the second inlet 213, the first outlet 212 and the second outlet 214.

[0065] Thus, the multiple openings on the tube body 21 can be located at different heights, which facilitates the fluid to flow into the first channel 101 and the second channel 102 and avoids interference. At the same time, it is convenient for the fluid to flow fully, extend the flow path, and improve the heat exchange effect.

[0066] In some embodiments, the shapes of the four openings may be the same or different, and the shape of each opening includes at least one of square, circle, oblong, and ellipse.

[0067] It can be understood that by changing the shape of the opening on the tube body 21, the pressure drop of the fluid can be changed to adapt to the needs of different working conditions, thereby achieving the purpose of reducing power, saving energy and reducing consumption; at the same time, under the working condition where the heat exchange fluid has a phase change, the opening size can be changed as needed, that is, the fluid distribution condition can be improved, and the uneven gas-liquid distribution between the flow channels of the heat exchange body 10 can be solved.

[0068] like Figure 1 As shown, in some embodiments, the heat exchange body 10 includes a plurality of heat exchange plates 11, which are stacked, and the stacking direction is substantially the same as the axial direction of the tube body 21. A plate channel is formed between two adjacent heat exchange plates 11, and the plate channel is a part of the first channel 101 or the second channel 102. There are corresponding inlets or outlets between two adjacent heat exchange plates 11, so that the inlets or outlets are connected to the corresponding flow channels, that is, in the arrangement direction of the plurality of heat exchange plates 11, the first inlet 211 is located between two adjacent heat exchange plates 11, the first outlet 212 is located between other two adjacent heat exchange plates 11, the second inlet 213 is located between other two adjacent heat exchange plates 11, and the second outlet 214 is located between other two adjacent heat exchange plates 11.

[0069] Specifically, the four openings, namely the first inlet 211, the second inlet 213, the first outlet 212 and the second outlet 214, are arranged at intervals along a spiral line in the circumferential direction of the tube body 21, and each opening can be connected to a plate channel. Adjacent plate channels are respectively connected to different openings, thereby connecting different flow channels on the guide tube 20, thereby ensuring that different fluids flow in adjacent plate channels, that is, different fluids flow on both sides of a heat exchange plate 11, thereby realizing the heat exchange function.

[0070] like Figure 1 As shown, in some embodiments, the heat exchange body 10 has a mounting through hole 103, the mounting through hole 103 passes through the plurality of heat exchange plates 11, the flow guide tube 20 is inserted into the mounting through hole 103, and the outer periphery of the flow guide tube 20 cooperates with the heat exchange body 10, thereby facilitating the flow channel of the flow guide tube 20 to be connected with the channel of the heat exchange body 10, and easily achieving sealing, while making the structure of the entire plate heat exchanger 100 more compact.

[0071] The mounting through hole 103 may be located at a corner of the heat exchange body 10 or in the middle of the heat exchange body 10 . Since the heat exchange body 10 only needs to have one mounting through hole 103 , there is no need to place too many restrictions on the position of the mounting through hole 103 .

[0072] In other embodiments, the flow guide tube 20 can also be installed on the outside of the heat exchange body 10. The outer periphery of the heat exchange body 10 has multiple openings connected to the channel, and the multiple openings on the flow guide tube 20 correspond to the multiple openings, that is, the flow guide tube 20 does not need to be inserted into the heat exchange body 10, thereby reducing the occupancy of the internal space of the heat exchange body 10.

[0073] like Figure 6-Figure 11 As shown, in some specific embodiments, the multiple heat exchange plates 11 include a first heat exchange plate 121, a second heat exchange plate 122, a third heat exchange plate 123 and a fourth heat exchange plate 124 arranged in sequence, that is, along the stacking direction of the multiple heat exchange plates 11, the first heat exchange plate 121, the second heat exchange plate 122, the third heat exchange plate 123, the fourth heat exchange plate 124, the first heat exchange plate 121, the second heat exchange plate 122, the third heat exchange plate 123, the fourth heat exchange plate 124 and so on.

[0074] like Fig.10 and Fig.11 As shown, a portion of the first channel 101 (i.e., the first plate channel 11a) is defined between the first heat exchange plate 121 and the second heat exchange plate 122, a portion of the first channel 101 (i.e., the second plate channel 11b) is defined between the third heat exchange plate 123 and the fourth heat exchange plate 124, the second heat exchange plate 122 cooperates with the third heat exchange plate 123, and a first connecting port 15 is formed at the cooperation position, thereby a portion of the first channel 101 (the first plate channel 11a) is connected with a portion of the first channel 101 (the second plate channel 11b) through the first connecting port 15.

[0075] like Figure 8 and Fig. 9 As shown, a portion of the second channel 102 (i.e., the third plate channel 11c) is defined between the first heat exchange plate 121 and the adjacent fourth heat exchange plate 124 (not shown in the figure), a portion of the second channel 102 (i.e., the fourth plate channel 11d) is defined between the second heat exchange plate 122 and the third heat exchange plate 123, the first heat exchange plate 121 is matched with the second heat exchange plate 122, and a second connecting port 16 is formed at the matching position, and a portion of the second channel 102 (the third plate channel 11c) is connected to a portion of the second channel 102 (the fourth plate channel 11d) through the second connecting port 16.

[0076] It can be understood that after the second heat exchange plate 122 and the third heat exchange plate 123 are in place, the second heat exchange plate 122 and the third heat exchange plate 123 are sealed around the first communication port 15, so that the second channel 102 between the second heat exchange plate 122 and the third heat exchange plate 123 will not be connected to the first channel 101 through the first communication port 15, and the first communication port 15 is only used to connect each part of the multiple first channels 101. Therefore, under the cooperation of two adjacent heat exchange plates 11, multiple parts of the first channel 101 can be connected to each other through the first communication port 15.

[0077] Correspondingly, after the first heat exchange plate 121 and the second heat exchange plate 122 are fitted into place, the first heat exchange plate 121 and the second heat exchange plate 122 are sealed around the second connecting port 16, so that the first channel 101 between the first heat exchange plate 121 and the second heat exchange plate 122 will not be connected to the second channel 102 through the second connecting port 16, and the second connecting port 16 is only used to connect each part of the multiple second channels 102.

[0078] Of course, if Fig. 9 As shown, the third heat exchange plate 123 and the fourth heat exchange plate 124 are also sealed and matched and define a second connecting port 16, thereby connecting a portion of the second channel 102 above the third heat exchange plate 123 with a portion of the second channel 102 below the fourth heat exchange plate 124, that is, with the cooperation of two adjacent heat exchange plates 11, multiple portions of the second channel 102 can be connected to each other through the second connecting port 16.

[0079] It should be noted that although multiple parts (plate channels) of the first channel 101 are interconnected and multiple parts (plate channels) of the second channel 102 are interconnected, since each plate channel corresponds to an inlet or outlet, under the action of pressure, two adjacent plate channels of each channel 101 are usually used for flow in and the other for flow out.

[0080] like Figure 6 and Figure 7 As shown, in some specific embodiments, the projections of the first connecting port 15 and the second connecting port 16 on the plane where any heat exchange plate 11 is located do not overlap, so the first connecting port 15 and the second connecting port 16 will not overlap, avoiding the first channel 101 and the second channel 102 from being connected.

[0081] like Figure 6 As shown, the first communication port 15 and the second communication port 16 are both arranged on a side of the heat exchange body 10 away from the flow guide pipe 20, thereby extending the flow path and improving the heat exchange effect.

[0082] like Figure 6 and Fig.11As shown, in some embodiments, the heat exchange body 10 has a first side 10a and a second side 10b that are arranged relatively to each other. Among two adjacent heat exchange plates 11, one heat exchange plate 11 has a first boss 131 that protrudes toward the first side 10a, and the other heat exchange plate 11 has a first groove 141 that is recessed toward the second side 10b. The first boss 131 and the first groove 141 correspond to each other in position. The first boss 131 and the first groove 141 of an adjacent heat exchange plate 11 abut against each other and form a first connecting port 15. The first boss 131 and the first groove 141 of the other adjacent heat exchange plate 11 are arranged at intervals, so that a part of a channel can be defined between the two heat exchange plates 11, and the channel is relatively sealed at the first connecting port 15.

[0083] like Fig.11 As shown, in some embodiments, the bottom wall of the first groove 141 has a first retaining ring 1411 extending toward the second side 10b, and the middle part of the first boss 131 has a first avoidance hole. The first retaining ring 1411 is plugged into the first avoidance hole, and the middle part of the first retaining ring 1411 defines a first connecting port 15. On the one hand, the first retaining ring 1411 is plugged into the first avoidance hole, which can not only play a role in positioning and preventing mistakes in the assembly of the two heat exchange plates 11, but also help to improve the reliability of the matching of the two heat exchange plates 11, and also facilitate the two heat exchange plates 11 to be sealed at the periphery of the first connecting port 15, for example, by interference fitting the first retaining ring 1411 with the first avoidance hole, or arranging a sealing ring on the periphery of the first retaining ring 1411 to seal with the first avoidance hole, or welding the first retaining ring 1411 to the edge of the first avoidance hole, the sealing at this location can be conveniently and effectively achieved.

[0084] like Figure 6 and Fig. 9 As shown, in some embodiments, among two adjacent heat exchange plates 11, one heat exchange plate 11 has a second groove 132 recessed toward the second side 10b, and the other heat exchange plate 11 has a second boss 142 protruding toward the first side 10a, the second boss 142 and the second groove 132 correspond in position, the second groove 132 and the first boss 131 are provided on the same heat exchange plate 11, the second boss 142 and the first groove 141 are provided on the same heat exchange plate 11, the second groove 132 abuts against the second boss 142 of an adjacent heat exchange plate 11 and forms a second connecting port 16, the second groove 132 and the second boss 142 of the other adjacent heat exchange plate 11 are arranged at intervals, thereby defining a portion of another channel between the two heat exchange plates 11, and making the channel relatively sealed at the second connecting port 16.

[0085] like Fig. 9As shown, in some embodiments, the bottom wall of the second groove 132 has a second retaining ring 1321 extending toward the second side 10b, and the middle part of the second boss 142 has a second avoidance hole. The second retaining ring 1321 is plugged into the second avoidance hole, and the middle part of the second retaining ring 1321 defines a second connecting port 16. On the one hand, the second retaining ring 1321 is plugged into the second avoidance hole, which can not only play a role in positioning and preventing mistakes in the assembly of the two heat exchange plates 11, but also help to improve the reliability of the matching of the two heat exchange plates 11, and also facilitate the two heat exchange plates 11 to be sealed at the periphery of the second connecting port 16. For example, the second retaining ring 1321 is interference fit with the second avoidance hole, or a sealing ring is arranged on the periphery of the second retaining ring 1321 to seal with the second avoidance hole, or the second retaining ring 1321 is welded to the edge of the second avoidance hole, which can conveniently and effectively achieve sealing there.

[0086] Combination Figure 6-Figure 11 As shown, the first heat exchange plate 121, the second heat exchange plate 122, the third heat exchange plate 123 and the fourth heat exchange plate 124 are arranged in sequence in the up and down direction, and the fourth heat exchange plate 124 is provided above the first heat exchange plate 121 (not shown in the figure), the first side 10a of the heat exchange body 10 is the upper side, and the second side 10b of the heat exchange body 10 is the lower side.

[0087] The first heat exchange plate 121 has an upwardly protruding first boss 131 and a downwardly recessed second groove 132 . The first boss 131 is located at the front side of the second groove 132 . The third heat exchange plate 123 has the same structure as the first heat exchange plate 121 .

[0088] The second heat exchange plate 122 has a first groove 141 that is recessed downward and a second boss 142 that is protruding upward. The first groove 141 is located at the front side of the second boss 142 . The fourth heat exchange plate 124 has the same structure as the second heat exchange plate 122 .

[0089] Among them, all the first bosses 131 and all the first grooves 141 correspond to each other in the up-down direction, and all the second bosses 142 and all the second grooves 132 correspond to each other in the up-down direction.

[0090] like Fig.10 and Fig.11 As shown, the first boss 131 of the first heat exchange plate 121 and the first groove 141 of the second heat exchange plate 122 are arranged at intervals, a portion of the first channel 101 (the first plate channel 11a) is formed between the first heat exchange plate 121 and the second heat exchange plate 122, the first groove 141 of the second heat exchange plate 122 abuts against the first boss 131 of the third heat exchange plate 123, and a first connecting port 15 is formed, and a portion of the first channel 101 (the second plate channel 11b) is formed between the first boss 131 of the third heat exchange plate 123 and the first groove 141 of the fourth heat exchange plate 124.

[0091] like Fig.10 As shown, the first plate channel 11a is connected to the first inlet 211 of the guide tube 20, and the second plate channel 11b is connected to the first outlet 212 of the guide tube 20, so that a fluid enters the guide tube 20 through the first inlet channel 201, enters the first plate channel 11a through the first inlet 211, flows into the second plate channel 11b through the first connecting port 15, and then flows to the first outflow channel 202 through the first outlet 212, and finally flows out of the guide tube 20 through the first outflow channel 202.

[0092] like Figure 8 and Fig. 9 As shown, the second groove 132 of the first heat exchange plate 121 and the second boss 142 of the second heat exchange plate 122 abut against each other and form a second connecting port 16; at the same time, the second groove 132 of the third heat exchange plate 123 and the second boss 142 of the fourth heat exchange plate 124 abut against each other and form a second connecting port 16.

[0093] The second groove 132 of the first heat exchange plate 121 is spaced apart from the second boss 142 of the fourth heat exchange plate 124 above it, a portion of the second channel 102 (the third plate channel 11c) is formed between the first heat exchange plate 121 and the fourth heat exchange plate 124, and a portion of the second channel 102 (the fourth plate channel 11d) is formed between the second heat exchange plate 122 and the third heat exchange plate 123.

[0094] like Figure 8 As shown, the third plate channel 11c is connected to the second inlet 213 of the guide tube 20, and the fourth plate channel 11d is connected to the second outlet 214 of the guide tube 20, so that another fluid enters the guide tube 20 through the second inlet channel 203, enters the third plate channel 11c through the second inlet 213, flows into the fourth plate channel 11d through the second connecting port 16, and then flows to the second outflow channel 204 through the second outlet 214, and finally flows out of the guide tube 20 through the second outflow channel 204.

[0095] The thermal management system according to an embodiment of the present invention includes a plate heat exchanger according to an embodiment of the present invention. By adopting the above-mentioned plate heat exchanger, the number of joints and the number of pipes on the plate heat exchanger 100 are reduced, which facilitates the assembly of the thermal management system and reduces the manufacturing cost. At the same time, the heat exchange area of ​​the heat exchange body 10 is increased, the fluid flows more evenly, and the heat exchange efficiency of the thermal management system is improved.

[0096] The vehicle according to the embodiment of the present invention includes a plate heat exchanger according to the embodiment of the present invention or a thermal management system according to the embodiment of the present invention. By adopting the above-mentioned plate heat exchanger, the number of joints and the number of pipes on the plate heat exchanger 100 are reduced, which facilitates the assembly of the plate heat exchanger on the vehicle and reduces the manufacturing cost. At the same time, the heat exchange area of ​​the heat exchange body 10 is increased, the fluid flows more evenly, and the heat exchange efficiency of the vehicle is improved.

[0097] Other structures and operations of the plate heat exchanger 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein. The up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0098] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plate heat exchanger, characterized in that: include: a heat exchange body, the heat exchange body defining a first channel and a second channel; a flow guide pipe, the flow guide pipe cooperates with the heat exchange body and includes a pipe body and a separator, at least a portion of the separator is arranged in the pipe body for at least separating the pipe body into a first inflow channel, a first outflow channel, a second inflow channel and a second outflow channel, the pipe body has a first inlet, a first outlet, a second inlet and a second outlet corresponding to the first inflow channel, the first outflow channel, the second inflow channel and the second outflow channel, The first inflow channel and the first outflow channel are communicated with the first channel through the first inlet and the first outlet, respectively, and the second inflow channel and the second outflow channel are communicated with the second channel through the second inlet and the second outlet, respectively.

2. The plate heat exchanger according to claim 1, characterized in that: The partition comprises a plurality of partitions, each of which extends along the axial direction of the tube body, a flow channel is defined between two adjacent partitions, and each of which extends along the axial direction of the tube body.

3. The plate heat exchanger according to claim 2, characterized in that: One side of the plurality of partitions is located in the middle of the tube body and is connected to each other, and the other side of each of the partitions is connected to the inner wall surface of the tube body.

4. The plate heat exchanger according to claim 3, characterized in that: Two adjacent partitions are arranged vertically.

5. The plate heat exchanger according to claim 3, characterized in that: Two adjacent partitions are connected by circular arc transition, and / or the partition is connected by circular arc transition to the inner wall surface of the tube body.

6. The plate heat exchanger according to claim 1, characterized in that: The first inlet and the first outlet are arranged alternately in the axial direction of the tube body and are arranged at intervals in the circumferential direction of the tube body; The second inlet and the second outlet are arranged alternately in the axial direction of the pipe body, and are arranged at intervals in the circumferential direction of the pipe body.

7. The plate heat exchanger according to claim 6, characterized in that: The first inlet, the second inlet, the first outlet and the second outlet are arranged at intervals along a spiral line in the circumferential direction of the tube body.

8. The plate heat exchanger according to claim 1, characterized in that: The heat exchange body includes a plurality of heat exchange plates, which are stacked and arranged, and a portion of the first channel or the second channel is defined between two adjacent heat exchange plates. A corresponding first inlet, a corresponding first outlet, a corresponding second inlet, or a corresponding second outlet is provided between two adjacent heat exchange plates.

9. The plate heat exchanger according to claim 8, characterized in that: The heat exchange body has a mounting through hole, and the mounting through hole passes through the plurality of heat exchange plates. The flow guide pipe is inserted into the mounting through hole and matched with the heat exchange body.

10. The plate heat exchanger according to claim 8, characterized in that: The plurality of heat exchange plates include a first heat exchange plate, a second heat exchange plate, a third heat exchange plate and a fourth heat exchange plate arranged in sequence, A portion of the first channel is defined between the first heat exchange plate and the second heat exchange plate, a portion of the first channel is defined between the third heat exchange plate and the fourth heat exchange plate, the second heat exchange plate cooperates with the third heat exchange plate and forms a first communication port, and a portion of the first channel is communicated with a portion of the first channel through the first communication port; A portion of the second channel is defined between the first heat exchange plate and the adjacent fourth heat exchange plate, a portion of the second channel is defined between the second heat exchange plate and the third heat exchange plate, the first heat exchange plate cooperates with the second heat exchange plate and forms a second connecting port, and a portion of the second channel is connected to a portion of the second channel through the second connecting port.

11. The plate heat exchanger according to claim 10, characterized in that: The projections of the first communication port and the second communication port on any plane where the heat exchange plate is located do not overlap.

12. The plate heat exchanger according to claim 10, characterized in that: The heat exchange body has a first side and a second side arranged opposite to each other. Among two adjacent heat exchange plates, one heat exchange plate has a first boss protruding toward the first side, and the other heat exchange plate has a first groove recessed toward the second side. The first boss and the first groove are located in corresponding positions. The first boss and the first groove of an adjacent heat exchange plate abut against each other to form the first communication port, and the first boss and the first groove of another adjacent heat exchange plate are arranged at an interval.

13. The plate heat exchanger according to claim 12, characterized in that: The bottom wall of the first groove has a first retaining ring extending toward the second side, the middle portion of the first boss has a first avoidance hole, and the first retaining ring is plug-fitted with the first avoidance hole to define the first communication port.

14. The plate heat exchanger according to claim 12, characterized in that: Among the two adjacent heat exchange plates, one of the heat exchange plates has a second groove recessed toward the second side, and the other heat exchange plate has a second boss protruding toward the first side, the second boss and the second groove correspond in position, the second groove and the first boss are arranged on the same heat exchange plate, the second boss and the first groove, the second groove abuts against the second boss of an adjacent heat exchange plate and forms the second connecting port, and the second groove is spaced apart from the second boss of the other adjacent heat exchange plate.

15. The plate heat exchanger according to claim 14, characterized in that: The bottom wall of the second groove has a second retaining ring extending toward the second side, the middle portion of the second boss has a second avoidance hole, and the second retaining ring is plug-fitted with the second avoidance hole to define the second communication port.

16. A thermal management system, characterized in that: It comprises a plate heat exchanger according to any one of claims 1-15.

17. A vehicle, characterized in that: It comprises a plate heat exchanger according to any one of claims 1 to 15 or a thermal management system according to claim 16.

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