Fluid conversion valve and battery system

Abstract

The utility model provides a fluid conversion valve and a battery system. The fluid conversion valve comprises a shell provided with a shell mounting cavity, one end of the shell is provided with a shell liquid inlet hole and a shell liquid outlet hole, and the other end of the shell is provided with a first shell transmission hole and a second shell transmission hole; and a commutation module; wherein the reversing module is rotatably mounted in the mounting cavity of the shell so as to rotate between a first position and a second position relative to the shell; when the reversing module is located at the first position, the shell liquid inlet hole communicates with the first shell transmission hole through the reversing module, and the shell liquid outlet hole communicates with the second shell transmission hole through the reversing module; when the reversing module is located at the second position, the shell liquid inlet hole communicates with the second shell transmission hole through the reversing module, and the shell liquid outlet hole communicates with the first shell transmission hole through the reversing module. According to the liquid cooling plate, the transmission direction of the cooling medium is changed through the fluid conversion valve, so that the temperature difference between adjacent battery cells at the two ends of the liquid cooling plate in the related technology is reduced.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a fluid steering valve and a battery system. Background Art

[0002] In the related art, a cooling device is usually required in a battery system to cool and dissipate heat of the battery cells. A cooling device such as a liquid cooling plate inputs a cooling medium from one end and outputs the cooling medium from the other end. Since the flow direction of the cooling medium is fixed, the temperature of the cooling medium input from one end of the liquid cooling plate is lower, and its heat dissipation effect is better, while the temperature of the cooling medium output from the other end of the liquid cooling plate is higher, and its heat dissipation effect is average, which ultimately leads to a large temperature difference between the battery cells located at both ends of the liquid cooling plate, posing certain safety hazards. Utility Model Content

[0003] The embodiments of the utility model provide a fluid steering valve and a battery system, which can solve the problem of large temperature difference between battery cells at both ends of a liquid cooling plate caused by the fixed flow direction of a cooling medium in the related art.

[0004] In a first aspect, an embodiment of the present utility model provides a fluid diverter valve, comprising:

[0005] A shell is provided with a shell installation cavity, one end of the shell is provided with a shell liquid inlet hole and a shell liquid outlet hole, and the other end of the shell is provided with a first shell transmission hole and a second shell transmission hole; and

[0006] Reversing module;

[0007] Wherein, the reversing module is rotatably installed in the housing installation cavity so as to rotate relative to the housing between a first position and a second position; when the reversing module is in the first position, the liquid inlet hole of the housing is connected to the first housing transmission hole through the reversing module, and the liquid outlet hole of the housing is connected to the second housing transmission hole through the reversing module; when the reversing module is in the second position, the liquid inlet hole of the housing is connected to the second housing transmission hole through the reversing module, and the liquid outlet hole of the housing is connected to the first housing transmission hole through the reversing module.

[0008] In one embodiment, the reversing module includes a pipeline assembly, which includes a first outer tube, a second outer tube, a first inner tube and a second inner tube; when the reversing module is in a first position, the liquid inlet hole of the shell is connected to the first shell transmission hole through the first outer tube, and the liquid outlet hole of the shell is connected to the second shell transmission hole through the second outer tube; when the reversing module is in a second position, the liquid inlet hole of the shell is connected to the second shell transmission hole through the first inner tube, and the liquid outlet hole of the shell is connected to the first shell transmission hole through the second inner tube.

[0009] In one embodiment, the reversing module also includes a core rotating member, which is provided with a first outer pipe, a second outer pipe, a first inner pipe and a second inner pipe, so as to respectively install the first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe; wherein the first end of the first outer pipe, the first end of the first inner pipe, the first end of the second outer pipe and the first end of the second inner pipe are sequentially arranged adjacent to and close to one end of the core rotating member, and the second end of the first outer pipe, the second end of the first inner pipe, the second end of the second outer pipe and the second end of the second inner pipe are close to the other end of the core rotating member, and the first end of the first outer pipe is arranged opposite to the second end of the first inner pipe, the second end of the first outer pipe is arranged opposite to the first end of the first inner pipe, the first end of the second outer pipe is arranged opposite to the second end of the second inner pipe, and the second end of the second outer pipe is arranged opposite to the first end of the second inner pipe.

[0010] In one embodiment, the first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe respectively have a first outer orthographic projection pattern, a second outer orthographic projection pattern, a first inner orthographic projection pattern and a second inner orthographic projection pattern on the end face of one end of the inner core rotating member, at least a portion of the first outer orthographic projection pattern is located outside the first inner orthographic projection pattern, and at least a portion of the second outer orthographic projection pattern is located outside the second inner orthographic projection pattern; the circle where the outer periphery of the inner core rotating member is located is the inner core circle, and the inner core circle is divided into five equidistant concentric circles; wherein the first outer orthographic projection pattern and the second outer orthographic projection pattern are located between the third equidistant concentric circle and the fifth equidistant concentric circle counted from the inside to the outside.

[0011] In one embodiment, the first outer orthographic projection pattern, the second outer orthographic projection pattern, the first inner orthographic projection pattern, and the second inner orthographic projection pattern are all in the shape of a quarter arc.

[0012] In one embodiment, the end surface of one end of the core rotating member has a center, the distance from the center line of the first outer orthographic projection pattern and the second outer orthographic projection pattern to the center is the spiral radius, and the spiral radius is half the radius of the core rotating member.

[0013] In one embodiment, the first outer tube, the second outer tube, the first inner tube, and the second inner tube all include two tube ends and a connecting portion connected between the two tube ends, the two tube ends are respectively close to two ends of the shell, and the connecting portion is spiral.

[0014] In one embodiment, the center of the first end of the first outer pipe, the center of the first end of the first inner pipe, the center of the first end of the second outer pipe, and the center of the first end of the second inner pipe are on the same circle.

[0015] In one embodiment, the reversing module is rotatably installed in the housing mounting cavity so as to be in a third position relative to the housing, and the third position is located between the first position and the second position. When the reversing module is in the third position, the housing liquid inlet hole, the housing liquid outlet hole, the first housing transmission hole and the second housing transmission hole are all staggered with the pipeline assembly so that any one of the housing liquid inlet hole and the housing liquid outlet hole is not connected to any one of the first housing transmission hole and the second housing transmission hole.

[0016] In one embodiment, the switching module further includes a driving member, which is mounted on the housing and connected to the core rotating member to drive the core rotating member to rotate.

[0017] In a second aspect, an embodiment of the present utility model provides a battery system, comprising a fluid reversing valve, a front-end fluid device and a battery pack as in the first aspect, wherein the front-end fluid device comprises a front-end inlet for inputting fluid and a front-end outlet for outputting fluid, and the battery pack comprises a rear-end cooling module, and the rear-end cooling module comprises a first rear-end transmission port and a second rear-end transmission port;

[0018] Among them, the front end outlet is connected to the liquid inlet hole of the shell, and the front end inlet is connected to the liquid outlet hole of the shell; the first shell transmission hole is connected to the first rear end transmission port, and the second shell transmission hole is connected to the second rear end transmission port.

[0019] The utility model provides a fluid steering valve and a battery system, the fluid steering valve comprises a shell provided with a shell mounting cavity, and a reversing module rotatably mounted in the shell mounting cavity, the reversing module can realize rotation between a first position and a second position relative to the shell. One end of the shell is provided with a shell liquid inlet hole and a shell liquid outlet hole, and the other end of the shell is provided with a first shell transmission hole and a second shell transmission hole. When the reversing module is in the first position, the shell liquid inlet hole is connected to the first shell transmission hole through the reversing module, and the shell liquid outlet hole is connected to the second shell transmission hole through the reversing module, that is, the cooling medium is output from the first shell transmission hole and input from the second shell transmission hole. When the reversing module is in the second position, the shell liquid inlet hole is connected to the second shell transmission hole through the reversing module, and the shell liquid outlet hole is connected to the first shell transmission hole through the reversing module, that is, the cooling medium is output from the second shell transmission hole and input from the first shell transmission hole, thereby realizing the transmission direction change of the cooling medium between the first shell transmission hole and the second shell transmission hole, thereby solving the problem of large temperature difference of the battery cells at both ends of the liquid cooling plate caused by the fixed flow direction of the cooling medium in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of a fluid steering valve provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Exploded diagram of

[0023] Figure 3 yes Figure 1 A schematic diagram of the structure when the reversing module is in the first position;

[0024] Figure 4 yes Figure 1 A schematic diagram of the structure when the reversing module is in the second position;

[0025] Figure 5 yes Figure 1 A schematic structural diagram of an orthographic projection of a pipeline assembly on an end surface of one end of a core turning member;

[0026] Figure 6 yes Figure 5 The schematic diagram of the structure in which the inner core circle is divided into five equidistant concentric circles;

[0027] Figure 7 yes Figure 1 A schematic diagram of the structure of the pipeline components in FIG.

[0028] Figure 8 yes Figure 1 A schematic structural diagram of a battery system when the reversing module is in a first position;

[0029] Fig. 9 yes Figure 1 A schematic structural diagram of a battery system when the reversing module is in a second position;

[0030] Description of reference numerals:

[0031] 1000, fluid steering valve; 1100, shell; 1200, core steering member; 1300, driving member; 1110, shell mounting cavity; 1120, shell liquid inlet hole; 1130, shell liquid outlet hole; 1140, first shell transmission hole; 1150, second shell transmission hole; 1111, first outer tube; 1112, second outer tube; 1113, first inner tube; 1114, second inner tube; 1121, first outer pipeline; 1122, second outer pipeline; 1123, first inner pipeline; 1124, second inner pipeline; 1211, pipeline end; 1212, connecting part; 2000, battery system; 3000, front-end fluid device; 4000, battery pack; 3100, front-end inlet; 3200, front-end outlet; 4100, rear-end cooling module; 4110, first rear-end transmission port; 4120, second rear-end transmission port. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0033] The embodiment of the utility model provides a fluid diverter valve 1000, please refer to Figure 1 and Figure 2 , Figure 1 1 is a schematic diagram of the structure of a fluid diverter valve 1000 provided in an embodiment of the utility model. Figure 2 yes Figure 1 The fluid diverter valve 1000 comprises a housing 1100 having a housing mounting cavity 1110 and a reversing module. One end of the housing 1100 is provided with a housing liquid inlet hole 1120 and a housing liquid outlet hole 1130, and the other end of the housing 1100 is provided with a first housing transmission hole 1140 and a second housing transmission hole 1150.

[0034] The reversing module is rotatably installed in the housing installation cavity 1110, so that the reversing module can rotate between a first position and a second position relative to the housing 1100. When the reversing module is in the first position, the housing liquid inlet 1120 is connected to the first housing transmission hole 1140 through the reversing module, and the housing liquid outlet 1130 is connected to the second housing transmission hole 1150 through the reversing module, that is, the cooling medium can enter from the housing liquid inlet 1120, and flow out from the first housing transmission hole 1140 through the reversing module, and then flow into the second housing transmission hole 1150 through an external flow path (not shown in the figure), and finally flow out from the housing liquid outlet 1130 through the reversing module. At this time, on the external flow path, the temperature of the cooling medium flowing from the first housing transmission hole 1140 to the second housing transmission hole 1150 gradually increases. When the reversing module is in the second position, the shell liquid inlet hole 1120 is connected to the second shell transmission hole 1150 through the reversing module, and the shell liquid outlet hole 1130 is connected to the first shell transmission hole 1140 through the reversing module. That is, at this time, the cooling medium can enter from the shell liquid inlet hole 1120, and flow out from the second shell transmission hole 1150 through the reversing module, and then flow into the first shell transmission hole 1140 through the external flow path, and finally flow out from the shell liquid outlet hole 1130 through the reversing module. At this time, on the external flow path, the temperature of the cooling medium flowing from the second shell transmission hole 1150 to the first shell transmission hole 1140 gradually increases.

[0035] The reversing module in the fluid diverter valve 1000 in this embodiment can rotate between a first position and a second position, so that the cooling medium can flow out from the first shell transmission hole 1140, pass through the external flow path, and finally flow into the second shell transmission hole 1150, or the cooling medium can flow out from the second shell transmission hole 1150, pass through the external flow path, and finally flow into the first shell transmission hole 1140, so as to realize the function of changing the transmission direction of the cooling medium, so that the temperature difference between the position of the external flow path close to the first shell transmission hole 1140 and the second shell transmission hole 1150 is small, thereby avoiding the safety problem caused by the large temperature difference between adjacent battery cells at both ends of the liquid cooling plate in the related art.

[0036] In some embodiments, please refer to Figure 3 and Figure 4 , Figure 3 yes Figure 1 A schematic diagram of the structure when the reversing module is in the first position, Figure 4 yes Figure 1The schematic diagram of the structure when the reversing module is in the second position. The reversing module includes a pipeline assembly, and the pipeline assembly includes a first outer tube 1111, a second outer tube 1112, a first inner tube 1113 and a second inner tube 1114; when the reversing module is in the first position, the shell liquid inlet 1120 is connected to the first shell transmission hole 1140 through the first outer tube 1111, and the shell liquid outlet 1130 is connected to the second shell transmission hole 1150 through the second outer tube 1112; when the reversing module is in the second position, the shell liquid inlet 1120 is connected to the second shell transmission hole 1150 through the first inner tube 1113, and the shell liquid outlet 1130 is connected to the first shell transmission hole 1140 through the second inner tube 1114.

[0037] Specifically, when the reversing module rotates to the first position, the cooling medium flowing in from the housing liquid inlet hole 1120 flows through the first outer tube 1111 and then flows out from the first housing transmission hole 1140, then flows through the external flow path, flows in from the second housing transmission hole 1150, flows through the second outer tube 1112 and then flows out from the housing liquid outlet hole 1130. When the reversing module rotates to the second position, the cooling medium flowing in from the housing liquid inlet hole 1120 flows through the first inner tube 1113 and then flows out from the second housing transmission hole 1150, then flows through the external flow path, flows in from the first housing transmission hole 1140, flows through the second inner tube 1114 and then flows out from the housing liquid outlet hole 1130.

[0038] In the present embodiment, during the process of the reversing module rotating from the first position to the second position, the shell liquid inlet hole 1120 is connected with the first shell transmission hole 1140, and the shell liquid outlet hole 1130 is connected with the second shell transmission hole 1150 through the first outer tube 1111 and the second outer tube 1112, and the shell liquid inlet hole 1120 is connected with the second shell transmission hole 1150, and the shell liquid outlet hole 1130 is connected with the first shell transmission hole 1140 through the first inner tube 1113 and the second inner tube 1114, thereby realizing the function of changing the transmission direction of the cooling medium, so that the temperature difference between the positions of the external flow path close to the first shell transmission hole 1140 and the second shell transmission hole 1150 is small.

[0039] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The reversing module further includes an inner core steering member 1200, which is provided with a first outer pipe 1121, a second outer pipe 1122, a first inner pipe 1123 and a second inner pipe 1124, for respectively installing the first outer pipe 1111, the second outer pipe 1112, the first inner pipe 1113 and the second inner pipe 1114.

[0040] Among them, the first end of the first outer pipe 1121, the first end of the first inner pipe 1123, the first end of the second outer pipe 1122 and the first end of the second inner pipe 1124 are arranged adjacent to each other in sequence and close to one end of the inner core steering member 1200, the second end of the first outer pipe 1121, the second end of the first inner pipe 1123, the second end of the second outer pipe 1122 and the second end of the second inner pipe 1124 are close to the other end of the inner core steering member 1200, and the first end of the first outer pipe 1121 is arranged opposite to the second end of the first inner pipe 1123, the second end of the first outer pipe 1121 is arranged opposite to the first end of the first inner pipe 1123, the first end of the second outer pipe 1122 is arranged opposite to the second end of the second inner pipe 1124, and the second end of the second outer pipe 1122 is arranged opposite to the first end of the second inner pipe 1124.

[0041] In this embodiment, by limiting the relative positions of the first end and the second end of the first outer pipe 1121, the first inner pipe 1123, the second outer pipe 1122 and the second inner pipe 1124, the sizes and structures of the first outer pipe 1121, the first inner pipe 1123, the second outer pipe 1122 and the second inner pipe 1124 are relatively uniform, thereby facilitating the production of the pipes.

[0042] In some embodiments provided in the present application, an orthographic projection pattern of the outer circumferential surface of the inner core rotating member on an end surface of one end of the inner core rotating member is defined as an inner core circle.

[0043] In some embodiments, please refer to Figure 5 and Figure 6 , Figure 5 1 is a schematic structural diagram of the orthographic projection of the pipeline assembly on the end surface of one end of the core turning member 1200. Figure 6 yes Figure 5 The structural schematic diagram of dividing the inner core circle into five equidistant concentric circles. The first outer pipe 1121, the second outer pipe 1122, the first inner pipe 1123 and the second inner pipe 1124 respectively have a first outer orthographic projection pattern, a second outer orthographic projection pattern, a first inner orthographic projection pattern and a second inner orthographic projection pattern on the end surface of one end of the inner core rotating member 1200, at least a part of the first outer orthographic projection pattern is located outside the first inner orthographic projection pattern, and at least a part of the second outer orthographic projection pattern is located outside the second inner orthographic projection pattern; the circle where the outer periphery of the inner core rotating member 1200 is located is the inner core circle, and the inner core circle is divided into five equidistant concentric circles; wherein the first outer orthographic projection pattern and the second outer orthographic projection pattern are located between the third equidistant concentric circle and the fifth equidistant concentric circle counted from the inside to the outside.

[0044] In this embodiment, at least a portion of the first outer orthographic projection pattern is limited to be located outside the first inner orthographic projection pattern, and at least a portion of the second outer orthographic projection pattern is limited to be located outside the second inner orthographic projection pattern, so that the connecting portions 1212 between the first outer pipe 1121 and the first inner pipe 1123, and between the second outer pipe 1122 and the second inner pipe 1124 will not contact each other, and the positions of the first outer orthographic projection pattern and the second outer orthographic projection pattern are limited to be located between the third equidistant concentric circle and the fifth equidistant concentric circle counted from the inside to the outside. This design can avoid the first inner pipe 1123 and the second inner ring pipe being too close, resulting in insufficient space for the connecting portion 1212 of the two to be placed, resulting in touching each other. At the same time, it will also cause the cooling medium with a lower temperature in the first inner pipe 1123 to be affected by the cooling medium with a higher temperature in the second inner ring pipe, resulting in the cooling medium temperature in the first inner pipe 1123 to increase, ultimately affecting the heat dissipation effect.

[0045] In some embodiments, the end surface of one end of the core rotating member 1200 has a center, and the distance from the center line of the first outer orthographic projection pattern and the second outer orthographic projection pattern to the center is the spiral radius, and the spiral radius is half of the radius of the core rotating member 1200.

[0046] Specifically, when the spiral radius is set to half the radius of the core rotating member 1200, there is a sufficient gap between the first outer pipe 1121, the second outer pipe 1122 and the inner wall of the core rotating member 1200, which can effectively avoid the friction problem that may be caused by the first outer pipe 1121 and / or the second outer pipe 1122 being too close to the inner wall. In addition, the structural design can also ensure that there is a sufficient gap between the first inner pipe 1121 and the second inner pipe 1122, so that the first inner pipe 1121 and the second inner pipe 1122 will not be entangled with each other due to being too close, thereby ensuring the reliability of the reversing module during operation.

[0047] In some embodiments, please refer to Figure 6. The first outer orthographic projection pattern, the second outer orthographic projection pattern, the first inner orthographic projection pattern, and the second inner orthographic projection pattern are all in the shape of a quarter arc. In this embodiment, by limiting the first outer orthographic projection pattern, the second outer orthographic projection pattern, the first inner orthographic projection pattern, and the second inner orthographic projection pattern to be in the shape of a quarter arc, the inner core steering member 1200 will not be inconvenient to install due to the fact that the arc lengths of the above four orthographic projection patterns are too small, resulting in too small a lateral distance between the first outer tube 1111 and the first inner tube 1113, and between the second outer tube 1112 and the second inner tube 1114, nor will it be too long due to the fact that the arc lengths of the four orthographic projection patterns are too large, resulting in a high cost of tube production.

[0048] In some embodiments, please refer to Figure 7 , Figure 7 yes Figure 1 Schematic diagram of the structure of the pipeline assembly in. The first outer tube 1111, the second outer tube 1112, the first inner tube 1113, and the second inner tube 1114 all include two pipeline ends 1211 and a connecting portion 1212 connected between the two pipeline ends 1211, the two pipeline ends 1211 are respectively close to the two ends of the shell 1100, and the connecting portion 1212 is spiral. In this embodiment, the first outer tube 1111, the second outer tube 1112, the first inner tube 1113, and the second inner tube 1114 are designed as a structure of two pipeline ends 1211 and a spiral connecting portion 1212, which can realize that the ends of the orthographic projection on the core turning member 1200 of the first outer tube 1111 and the first inner tube 1113, the second outer tube 1112, and the second inner tube 1114 are arranged oppositely, and the connecting portions 1212 of the tubes do not contact each other, so as to realize the function of changing the transmission direction of the cooling medium.

[0049] In some embodiments, please refer to Figure 4 . The center of the first end of the first outer pipe 1121, the center of the first end of the first inner pipe 1123, the center of the first end of the second outer pipe 1122, and the center of the first end of the second inner pipe 1124 are on the same circle. In this embodiment, the center of the first end of the first outer pipe 1121, the center of the first end of the first inner pipe 1123, the center of the first end of the second outer pipe 1122, and the center of the first end of the second inner pipe 1124 are limited to the same circle. It is only necessary to ensure that the centers of the shell liquid inlet hole 1120, the shell liquid outlet hole 1130, the first shell transmission hole 1140, and the second shell transmission hole 1150 on the shell 1100 are also on a circle with the same radius as the above circle, so as to realize the function of rotating the inner core steering member 1200 to switch the transmission direction of the cooling medium.

[0050] In some embodiments, the reversing module is rotatably installed in the housing installation cavity 1110 to be in a third position relative to the housing 1100, the third position being between the first position and the second position. When the reversing module is in the third position, the housing liquid inlet hole 1120, the housing liquid outlet hole 1130, the first housing transmission hole 1140 and the second housing transmission hole 1150 are all staggered with the pipeline assembly, so that any one of the housing liquid inlet hole 11120 and the housing liquid outlet hole 1130 is not connected to any one of the first housing transmission hole 1140 and the second housing transmission hole 1150. Specifically, when the reversing module is in the third position, the housing liquid inlet hole 1120 and the housing liquid outlet hole 1130 are not connected through the reversing module, and at this time, the cooling medium cannot flow from the housing liquid inlet hole 1120 to the housing liquid outlet hole 1130, which is used to control the flow state of the cooling medium.

[0051] In some embodiments, please refer to Figure 1 and Figure 2 The reversing module further includes a driving member 1300, and the driving member 1300 is mounted on the housing 1100 and connected to the core steering member 1200 to drive the core steering member 1200 to rotate. In this embodiment, the core steering member 1200 can be rotated regularly by the driving member 1300 to better control the temperature difference between the position of the external flow path close to the first housing transmission hole 1140 and the second housing transmission hole 1150.

[0052] The embodiment of the utility model provides a fluid diverting valve 1000, which includes a housing 1100 provided with a housing mounting cavity 1110, and a reversing module rotatably mounted in the housing mounting cavity 1110, and the reversing module can realize rotation between a first position and a second position relative to the housing 1100. A housing liquid inlet hole 1120 and a housing liquid outlet hole 1130 are provided at one end of the housing 1100, and a first housing transmission hole 1140 and a second housing transmission hole 1150 are provided at the other end of the housing 1100. When the reversing module is in the first position, the housing liquid inlet hole 1120 is connected to the first housing transmission hole 1140 through the diverting module, and the housing liquid outlet hole 1130 is connected to the second housing transmission hole 1150 through the reversing module, that is, the cooling medium is output from the first housing transmission hole 1140 and input from the second housing transmission hole 1150. When the reversing module is in the second position, the shell liquid inlet hole 1120 is connected to the second shell transmission hole 1150 through the reversing module, and the shell liquid outlet hole 1130 is connected to the first shell transmission hole 1140 through the reversing module, that is, the cooling medium is output from the second shell transmission hole 1150 and input from the first shell transmission hole 1140, thereby realizing the change of transmission direction of the cooling medium between the first shell transmission hole 1140 and the second shell transmission hole 1150, so as to reduce the temperature difference between adjacent battery cells at both ends of the liquid cooling plate in the related art.

[0053] The present utility model also provides a battery system 2000, please refer to Figure 8 and Fig. 9 , Figure 8 yes Figure 1 A schematic diagram of the structure of the battery system 2000 when the reversing module is in the first position, Fig. 9 yes Figure 1 The battery system 2000 is a schematic diagram of the structure of the battery system 2000 when the reversing module is in the second position. The battery system 2000 includes the above-mentioned fluid reversing valve, the front-end fluid device 3000 and the battery pack 4000. The front-end fluid device 3000 includes a front-end inlet 3100 for inputting fluid and a front-end outlet 3200 for outputting fluid. The battery pack 4000 includes a rear-end cooling module 4100. The rear-end cooling module 4100 includes a first rear-end transmission port 4110 and a second rear-end transmission port 4120.

[0054] Specifically, when the fluid reversing valve is in the first position, the cooling medium in the front end fluid device 3000 flows into the fluid diverter valve 1000 through the front end inlet 3100 and the shell liquid inlet hole 1120, and then flows into the rear end cooling module 4100 through the first shell transmission hole 1140 and the first rear end transmission port 4110 to dissipate heat for the battery pack 4000, and then flows into the fluid diverter valve 1000 through the second rear end transmission port 4120 and the second shell transmission hole 1150, and finally flows back to the front end fluid device 3000 through the shell liquid outlet hole 1130 and the front end outlet 3200.

[0055] When the fluid reversing valve is in the second position, the cooling medium in the front end fluid device 3000 flows into the fluid diverter valve 1000 through the front end inlet 3100 and the shell liquid inlet hole 1120, and then flows into the rear end cooling module 4100 through the second shell transmission hole 1150 and the second rear end transmission port 4120 to dissipate heat for the battery pack 4000, and then flows into the fluid diverter valve 1000 through the first rear end transmission port 4110 and the first shell transmission hole 1140, and finally flows back to the front end fluid device 3000 through the shell liquid outlet hole 1130 and the front end outlet 3200.

[0056] It can be seen that when the fluid reversing valve is in the first position and the second position respectively, the flow direction of the cooling medium in the rear-end cooling module 4100 is from the first rear-end transmission port 4110 to the second rear-end transmission port 4120 and from the second rear-end transmission port 4120 to the first rear-end transmission port 4110 respectively, that is, the flow direction of the cooling medium in the rear-end cooling module 4100 is opposite in the two cases, so as to reduce the temperature difference between the two places in the battery pack 4000 close to the first rear-end transmission port 4110 and the second rear-end transmission port 4120 respectively.

[0057] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A fluid steering valve, characterized in that: include: The shell is provided with a shell installation cavity, one end of the shell is provided with a shell liquid inlet hole and a shell liquid outlet hole, and the other end of the shell is provided with a first shell transmission hole and a second shell transmission hole; and Reversing module; Wherein, the reversing module is rotatably installed in the housing mounting cavity so as to rotate relative to the housing between a first position and a second position; when the reversing module is in the first position, the liquid inlet hole of the housing is connected to the first housing transmission hole through the reversing module, and the liquid outlet hole of the housing is connected to the second housing transmission hole through the reversing module; when the reversing module is in the second position, the liquid inlet hole of the housing is connected to the second housing transmission hole through the reversing module, and the liquid outlet hole of the housing is connected to the first housing transmission hole through the reversing module.

2. The fluid diverter valve according to claim 1, characterized in that: The reversing module includes a pipeline assembly, and the pipeline assembly includes a first outer tube, a second outer tube, a first inner tube, and a second inner tube; when the reversing module is in the first position, the shell liquid inlet hole is connected to the first shell transmission hole through the first outer tube, and the shell liquid outlet hole is connected to the second shell transmission hole through the second outer tube; When the reversing module is in the second position, the shell liquid inlet hole is connected to the second shell transmission hole through the first inner tube, and the shell liquid outlet hole is connected to the first shell transmission hole through the second inner tube.

3. The fluid diverter valve according to claim 2, characterized in that: The reversing module also includes a core rotating member, which is provided with a first outer pipe, a second outer pipe, a first inner pipe and a second inner pipe, so as to respectively install the first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe; wherein the first end of the first outer pipe, the first end of the first inner pipe, the first end of the second outer pipe and the first end of the second inner pipe are arranged adjacent to each other in sequence and close to one end of the core rotating member, the second end of the first outer pipe, the second end of the first inner pipe, the second end of the second outer pipe and the second end of the second inner pipe are close to the other end of the core rotating member, and the first end of the first outer pipe is arranged opposite to the second end of the first inner pipe, the second end of the first outer pipe is arranged opposite to the first end of the first inner pipe, the first end of the second outer pipe is arranged opposite to the second end of the second inner pipe, and the second end of the second outer pipe is arranged opposite to the first end of the second inner pipe.

4. The fluid diverter valve according to claim 3, characterized in that: The first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe respectively have a first outer orthographic projection pattern, a second outer orthographic projection pattern, a first inner orthographic projection pattern and a second inner orthographic projection pattern on the end face of the one end of the core rotating member, at least a part of the first outer orthographic projection pattern is located outside the first inner orthographic projection pattern, and at least a part of the second outer orthographic projection pattern is located outside the second inner orthographic projection pattern; the orthographic projection pattern of the outer circumference of the core rotating member on the end face of the one end of the core rotating member is an inner core circle, and the inner core circle is divided into five equidistant concentric circles; wherein, the first outer orthographic projection pattern and the second outer orthographic projection pattern are located between the third equidistant concentric circle and the fifth equidistant concentric circle counted from the inside to the outside.

5. The fluid diverter valve according to claim 4, characterized in that: The first outer orthographic projection pattern, the second outer orthographic projection pattern, the first inner orthographic projection pattern, and the second inner orthographic projection pattern are all in a quarter arc shape.

6. The fluid diverter valve according to claim 5, characterized in that: The end surface of the one end of the core rotating member has a center, and the distance from the center line of the first outer orthographic projection pattern and the second outer orthographic projection pattern to the center is a spiral radius, and the spiral radius is half of the radius of the core rotating member.

7. The fluid diverter valve according to claim 3, characterized in that: The first outer tube, the second outer tube, the first inner tube, and the second inner tube each include two pipe ends and a connecting portion connected between the two pipe ends. The two pipe ends are respectively close to two ends of the outer shell, and the connecting portion is spiral.

8. The fluid diverter valve according to claim 3, characterized in that: The center of the first end of the first outer pipe, the center of the first end of the first inner pipe, the center of the first end of the second outer pipe, and the center of the first end of the second inner pipe are on the same circle.

9. The fluid diverter valve according to any one of claims 2 to 8, characterized in that: The reversing module is rotatably installed in the housing mounting cavity to be in a third position relative to the housing, and the third position is located between the first position and the second position. When the reversing module is in the third position, the housing liquid inlet hole, the housing liquid outlet hole, the first housing transmission hole and the second housing transmission hole are all staggered with the pipeline assembly, so that any one of the housing liquid inlet hole and the housing liquid outlet hole is not connected to any one of the first housing transmission hole and the second housing transmission hole.

10. The fluid diverter valve according to any one of claims 3 to 8, characterized in that: The reversing module further includes a driving member, which is mounted on the housing and connected to the core rotating member to drive the core rotating member to rotate.

11. A battery system, characterized in that: The fluid reversing valve, front-end fluid device and battery pack according to any one of claims 1 to 10 are included, wherein the front-end fluid device comprises a front-end inlet for inputting fluid and a front-end outlet for outputting the fluid, and the battery pack comprises a rear-end cooling module, and the rear-end cooling module comprises a first rear-end transmission port and a second rear-end transmission port; The front end outlet is connected to the shell liquid inlet, the front end inlet is connected to the shell liquid outlet; the first shell transmission hole is connected to the first rear end transmission port, and the second shell transmission hole is connected to the second rear end transmission port.

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