Gasket, sealing structure, pump device, thermal management system and vehicle

Abstract

According to the gasket, the sealing structure, the pump device, the heat management system and the vehicle, the gasket is used for the pump device, the pump device further comprises an impeller, the gasket is provided with an annular containing groove which is communicated end to end, the bottom wall face of the containing groove is suitable for being connected with the impeller in an abutting mode, and the gasket is suitable for rotating relative to the impeller. The bottom wall face of the containing groove is suitable for abutting against the impeller, and the gasket is suitable for rotating relative to the impeller, so that liquid in the pump device can flow back only after passing through the containing groove after passing through the impeller, the backflow path of the liquid is increased, the liquid is not prone to flowing back from a gap between the impeller and the gasket, and the fluid efficiency of the pump device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid pumps, and particularly relates to a gasket, a sealing structure, a pump device, a thermal management system and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the thermal management of the battery devices of new energy vehicles has become increasingly important. At present, the mainstream working mode is to use a liquid pump to transport liquid to the battery device to accelerate the heat exchange speed. However, the liquid pump in the prior art has the problem that liquid is likely to flow back. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a gasket, a sealing structure, a pump device, a thermal management system and a vehicle, so as to solve the problem that the liquid pump in the prior art is likely to have liquid flow back.

[0004] To achieve the purpose of the utility model, the following technical solutions are provided:

[0005] In the first aspect, the utility model provides a gasket for a pump device, and the pump device further includes an impeller; the gasket is provided with a receiving groove that is annular and communicates end to end, the bottom wall surface of the receiving groove is adapted to abut against the impeller, and the gasket is adapted to rotate relative to the impeller.

[0006] In an embodiment, the gasket includes a first base plate, a first side enclosure plate and a second side enclosure plate. The first side enclosure plate and the second side enclosure plate are both arranged on the first base plate. The first side enclosure plate and the second side enclosure plate are both annular members. The second side enclosure plate surrounds the outer periphery of the first side enclosure plate. The first base plate, the first side enclosure plate and the second side enclosure plate enclose to form the receiving groove, and the first base plate is adapted to abut against the impeller.

[0007] In an embodiment, the pump device further includes a housing, and the gasket further includes a first limiting portion. The first limiting portion is arranged on the side of the second side enclosure plate facing away from the first side enclosure plate, and the first limiting portion is adapted to be cooperatively connected with the housing so that the gasket and the housing are relatively fixed in the circumferential direction of the impeller.

[0008] In an embodiment, there are a plurality of the first limiting portions, and the plurality of first limiting portions are arranged at intervals.

[0009] In an embodiment, the gasket further includes a second limiting portion. The second limiting portion is arranged on the side of the second side enclosure plate facing away from the first side enclosure plate and is connected to the first limiting portion. The first limiting portion protrudes from the surface of the second limiting portion in the thickness direction of the gasket.

[0010] In one embodiment, the outer peripheral surface of the first limiting portion is flush with the outer peripheral surface of the second limiting portion.

[0011] In one embodiment, the first limiting portion is flush with the surface of the first substrate on the side facing away from the receiving groove, and the second limiting portion is flush with the surface of the first substrate on the side facing away from the receiving groove.

[0012] In one embodiment, the first substrate and the first side enclosure jointly enclose a first through hole, and the first through hole is adapted for liquid to flow through.

[0013] In a second aspect, the present utility model further provides a sealing structure for a pump device. The sealing structure includes an impeller and the gasket described in various embodiments of the first aspect. The impeller abuts against the bottom wall surface of the receiving groove, and the impeller is rotatably connected to the gasket.

[0014] In one embodiment, the impeller includes a second substrate and an annular rib. The annular rib is connected to the second substrate, at least part of the annular rib is received in the receiving groove, and the annular rib abuts against the bottom wall surface of the receiving groove.

[0015] In one embodiment, the size of the receiving groove in the radial direction is A, and the size of the annular rib in the radial direction is B, satisfying: A > B.

[0016] In one embodiment, the pump device further includes a housing. The housing has a receiving cavity. The sealing structure is adapted to be received in the receiving cavity. The gasket is adapted to be connected and fixed to the housing. The annular rib is adapted to divide the receiving cavity into a first space and a second space. The impeller is adapted to rotate relative to the gasket to drive liquid to flow from the first space to the second space; a flow guiding groove is formed on the surface of the annular rib facing away from the second substrate, and the flow guiding groove is adapted to communicate the first space and the second space.

[0017] In one embodiment, there are a plurality of the flow guiding grooves, and the plurality of flow guiding grooves are spaced apart from each other in the circumferential direction of the annular rib.

[0018] In one embodiment, the impeller further includes blades, and the blades are connected to the surface of the second substrate facing away from the annular rib.

[0019] In a third aspect, the present utility model further provides a pump device, including a housing and the sealing structure described in various embodiments of the second aspect. The housing has a receiving cavity. The sealing structure is received in the receiving cavity. The gasket is connected and fixed to the housing, and the impeller is rotatably connected to the housing.

[0020] Fourth aspect, the present utility model further provides a thermal management system, including the pump device described in the various embodiments of the third aspect.

[0021] Fifth aspect, the present utility model further provides a vehicle, including the thermal management system described in the various embodiments of the fourth aspect.

[0022] By providing that the gasket is provided with a receiving groove that is circularly connected from beginning to end, the bottom wall surface of the receiving groove is adapted to abut against the impeller, and the gasket is adapted to rotate relative to the impeller, such that the liquid flowing through the impeller in the pump device needs to pass through the receiving groove before it can flow back, increasing the liquid return path, making it difficult for the liquid to flow back through the gap between the impeller and the gasket, and improving the fluid efficiency of the pump device. Description of the Drawings

[0023] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a structural diagram of a gasket of an embodiment;

[0025] Figure 2 It is a structural diagram of an impeller of an embodiment;

[0026] Figure 3 It is a partial cross-sectional view of a pump device of an embodiment;

[0027] Figure 4 It is a structural diagram of a pump device of an embodiment;

[0028] Figure 5 It is a cross-sectional view of a pump device of an embodiment.

[0029] Description of the Reference Numerals:

[0030] 100 - pump device;

[0031] 10 - gasket, 11 - receiving groove, 12 - first substrate, 13 - first side enclosure, 14 - second side enclosure, 15 - first limiting portion, 16 - second limiting portion, 17 - first through hole;

[0032] 20 - impeller, 21 - second substrate, 211 - second through hole, 22 - annular rib, 221 - diversion groove, 23 - blade, 24 - connecting portion, 25 - annular side plate;

[0033] 30 - Housing, 31 - Pump head, 311 - Installation groove, 312 - Limiting structure, 313 - Water inlet, 314 - Water outlet, 32 - Accommodation cavity, 321 - First space, 322 - Second space, 323 - Installation space, 324 - Working space, 33 - Pump body, 34 - Bottom cover;

[0034] 40 - Rotor, 41 - Rotating part, 411 - Connection hole, 42 - Magnet;

[0035] 50 - Circuit board, 51 - Heat dissipation plate;

[0036] 60 - Stator;

[0037] 70 - Water - isolating part, 71 - Cylinder, 711 - Installation hole, 72 - Installation plate;

[0038] 80 - First sealing ring, 81 - Second sealing ring;

[0039] 90 - Rotating shaft. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the present invention in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more of the related listed items.

[0043] Next, some embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0044] Please refer to Figures 1 - 3, the present utility model provides a gasket 10 for a pump device 100. The pump device 100 further includes an impeller 20. The gasket 10 is provided with a receiving groove 11 that is circular and communicates end to end. The bottom wall surface of the receiving groove 11 is adapted to abut against the impeller 20, and the gasket 10 is adapted to rotate relative to the impeller 20.

[0045] Optionally, in the orthographic projection in the thickness direction of the gasket 10, the contour shape of the gasket 10 can be circular, rectangular, triangular, elliptical, etc., without limitation. Optionally, the gasket 10 can be made of materials that meet the requirements of structural strength, corrosion resistance, and easy processing and forming, specifically, it can be aluminum alloy, titanium alloy, stainless steel, ceramic, etc., without limitation. Optionally, the inner wall surface of the receiving groove 11 can be provided with a wear-resistant coating (not shown) to reduce the wear of the impeller 20 on the gasket 10 when the gasket 10 rotates relative to the impeller 20. Optionally, the wear-resistant coating can be made of materials with high hardness, good wear resistance, and heat resistance, specifically, it can be chromium, titanium nitride, hard silver, hard gold, rhodium, nickel, copper, etc., without limitation.

[0046] By providing that the gasket 10 is provided with a receiving groove 11 that is circular and communicates end to end, the bottom wall surface of the receiving groove 11 is adapted to abut against the impeller 20, and the gasket 10 is adapted to rotate relative to the impeller 20. Compared with the scheme where the impeller 20 directly abuts against the flat surface of the gasket 10, in this scheme, the gasket 10 is provided with a receiving groove 11, and the impeller 20 extends into the receiving groove 11 and abuts against the bottom wall surface of the receiving groove 11, increasing the liquid return path and the resistance when the liquid returns. When the liquid in the pump device 100 flows through the impeller 20, it needs to pass through the receiving groove 11 before it can return, increasing the liquid return path. The liquid is not easy to return through the gap between the impeller 20 and the gasket 10, improving the fluid efficiency of the pump device 100.

[0047] Please refer to Figure 1 , the gasket 10 includes a first base plate 12, a first side enclosure 13, and a second side enclosure 14. The first side enclosure 13 and the second side enclosure 14 are both arranged on the first base plate 12. The first side enclosure 13 and the second side enclosure 14 are both circular ring members. The second side enclosure 14 surrounds the outer periphery of the first side enclosure 13. The first base plate 12, the first side enclosure 13, and the second side enclosure 14 enclose to form the receiving groove 11, and the first base plate 12 is adapted to abut against the impeller 20.

[0048] Optionally, the first base plate 12, the first side enclosure 13, and the second side enclosure 14 can be of an integral structure, or can be detachably connected by means of clamping, screwing, riveting, bonding, etc., without limitation. Optionally, the first side enclosure 13 and the second side enclosure 14 can be arranged opposite to each other, or can be inclined to each other, without limitation.

[0049] Optionally, the surfaces of the first side panel 13 and the second side panel 14 facing away from the first substrate 12 are flush. The first side panel 13 can also protrude from the side of the second side panel 14 facing away from the first substrate 12, and the second side panel 14 can also protrude from the side of the first side panel 13 facing away from the first substrate 12, without limitation. Optionally, the dimensions of the first side panel 13 and the second side panel 14 in the radial direction can be the same or different, without limitation.

[0050] By providing that the spacer 10 includes the first substrate 12, the first side panel 13 and the second side panel 14, both the first side panel 13 and the second side panel 14 are provided on the first substrate 12. Both the first side panel 13 and the second side panel 14 are circular ring members. The second side panel 14 surrounds the outer periphery of the first side panel 13. The first substrate 12, the first side panel 13 and the second side panel 14 enclose to form a receiving groove 11. The bottom plate is adapted to abut against the impeller 20, so that the spacer 10 can form the receiving groove 11, and the structure of the spacer 10 is simple, the structure is stable, and it is easy to process and form.

[0051] Please refer to Figure 1 and Figure 3 , the pump device 100 further includes a housing 30. The spacer 10 further includes a first limiting portion 15. The first limiting portion 15 is provided on the side of the second side panel 14 facing away from the first side panel 13. The first limiting portion 15 is adapted to be cooperatively connected with the housing 30, so that the spacer 10 and the housing 30 are relatively fixed in the circumferential direction of the impeller 20.

[0052] Optionally, please refer to Figure 1 , the first limiting portion 15 extends along the circumferential direction of the second side panel 14 and is a member with non-connected head and tail. Optionally, the first limiting portion 15 and the second side panel 14 can be an integral structure, or can be detachably connected by means of clamping, screwing, riveting and bonding, etc., without limitation. Optionally, the first limiting portion 15 can be formed by cutting and processing the first substrate 12.

[0053] Optionally, the surfaces of the first limiting portion 15 and the second side panel 14 away from the first substrate 12 are flush. The first limiting portion 15 can also protrude from the side of the second side panel 14 away from the first substrate 12, and the second side panel 14 can also protrude from the side of the first limiting portion 15 away from the first substrate 12, without limitation. Optionally, the first limiting portion 15 can also be connected to the side of the first side plate facing away from the second side plate, without limitation.

[0054] Optionally, please refer to Figure 3, the housing 30 includes a pump head 31. The gasket 10 is fixedly connected to the pump head 31. The pump head 31 is provided with an annular installation groove 311 that is connected end to end for receiving the gasket 10. Optionally, a limiting structure 312 that cooperates with the first limiting portion 15 is connected to one of the side wall surfaces of the installation groove 311. The limiting structure 312 abuts against both end faces of the first limiting portion 15 in the circumferential direction of the second side wall 14, so that the gasket 10 and the pump head 31 are relatively fixed in the circumferential direction of the impeller 20.

[0055] By providing that the gasket 10 further includes a first limiting portion 15, the first limiting portion 15 is arranged on the side of the second side wall 14 facing away from the first side wall 13. The first limiting portion 15 is adapted to be connected and cooperate with the housing 30, so that the gasket 10 and the housing 30 are relatively fixed in the circumferential direction of the impeller 20. When the gasket 10 and the impeller 20 rotate relative to each other, the gasket 10 will not rotate relative to the housing 30 due to the frictional force generated when the impeller 20 rotates, preventing wear between the gasket 10 and the housing 30, avoiding the generation of gaps due to wear of the gasket 10 or the housing 30, and ensuring the sealing performance between the gasket 10 and the housing 30.

[0056] Please refer to Figure 1 , there are multiple first limiting portions 15, and the multiple first limiting portions 15 are arranged at intervals. Optionally, the multiple first limiting portions 15 are arranged at intervals along the circumferential direction of the second side plate. Optionally, the multiple first limiting portions 15 are equally spaced.

[0057] By providing that there are multiple first limiting portions 15 and the multiple first limiting portions 15 are arranged at intervals, the connection between the gasket 10 and the housing 30 is more stable, and when some of the first limiting portions 15 are damaged, it will not affect the fixing effect between the gasket 10 and the housing 30.

[0058] Please refer to Figure 1 and Figure 3 , the gasket 10 further includes a second limiting portion 16. The second limiting portion 16 is arranged on the side of the second side wall 14 facing away from the first side wall 13 and is connected to the first limiting portion 15. The first limiting portion 15 protrudes from the surface of the second limiting portion 16 in the thickness direction of the gasket 10.

[0059] Optionally, please refer to Figure 1 , the second limiting portion 16 extends along the circumferential direction of the second side wall 14 and is a member with non-connected ends. Optionally, the second limiting portion 16 and the second side wall 14 can be an integral structure, or can be detachably connected by means such as clamping, screwing, riveting and bonding, without limitation. Optionally, the second limiting portion 16 and the first limiting portion 15 can be an integral structure, or can be detachably connected by means such as clamping, screwing, riveting and bonding, without limitation. Optionally, the second limiting portion 16 can be formed by cutting and processing the first substrate 12.

[0060] Optionally, there may be multiple second limiting portions 16, and the multiple second limiting portions 16 are arranged at intervals along the circumferential direction of the second side wall 14. Optionally, when there are also multiple first limiting portions 15, the first limiting portions 15 and the second limiting portions 16 are arranged at intervals in sequence. Optionally, the second limiting portions 16 may also be arranged on the side of the first side wall 13 facing away from the second side wall 14, without limitation.

[0061] Optionally, please refer to Figure 3 , the second limiting portion 16 abuts against the aforementioned limiting structure 312 in the thickness direction of the gasket 10, so that the gasket 10 is relatively fixed to the housing 30.

[0062] By providing that the gasket 10 further includes a second limiting portion 16, the second limiting portion 16 is arranged on the side of the second side wall 14 facing away from the first side wall 13 and is connected to the first limiting portion 15. The first limiting portion 15 protrudes from the surface of the second limiting portion 16 in the thickness direction of the gasket 10, so that the gasket 10 and the housing 30 can be relatively fixed in the thickness direction of the gasket 10, preventing the gasket 10 from shifting or falling off.

[0063] Please refer to Figure 1 , the outer peripheral surface of the first limiting portion 15 is flush with the outer peripheral surface of the second limiting portion 16. Optionally, when the gasket 10 is an annular member or an elliptical ring member, the outer peripheral surfaces of the first limiting portion 15 and the second limiting portion 16 are both arc surfaces. The fact that the outer peripheral surface of the first limiting portion 15 is flush with the outer peripheral surface of the second limiting portion 16 means that the outer peripheral surface of the first limiting portion 15 and the outer peripheral surface of the second limiting portion 16 are on the same arc surface. Optionally, when the gasket 10 is a rectangular member or a triangular member, the outer peripheral surfaces of the first limiting portion 15 and the second limiting portion 16 are both flat surfaces and are flush.

[0064] By providing that the outer peripheral surface of the first limiting portion 15 is flush with the outer peripheral surface of the second limiting portion 16, the structure of the gasket 10 is simple, easy to process and form, and easy to assemble the gasket 10 with the housing 30.

[0065] Please refer to Figure 3 , the surfaces of the first substrate 12, the first limiting portion 15 and the second limiting portion 16 on the side facing away from the receiving groove 11 are flush.

[0066] By providing that the surfaces of the first substrate 12, the first limiting portion 15 and the second limiting portion 16 on the side facing away from the receiving groove 11 are flush, the structure of the gasket 10 is simple, easy to process and form, and easy to assemble the gasket 10 with the housing 30.

[0067] Please refer to Figure 1 and Figure 3 , the first substrate 12 and the first side wall 13 jointly enclose a first through hole 17, and the first through hole 17 is suitable for liquid to flow through.

[0068] Optionally, please refer to Figure 1 , the inner peripheral surface of the first substrate 12 is flush with the inner peripheral surface of the first side enclosure 13. Optionally, the inner peripheral wall surface of the first through hole 17 may extend along the axial direction of the first side enclosure 13 or may have an angle with the axial direction of the first side enclosure 13, without limitation.

[0069] Optionally, please refer to Figure 3 , the inner peripheral wall surface of the first through hole 17 abuts against the inner wall surface of the aforementioned mounting groove 311, and the outer peripheral surface of the gasket 10 abuts against the outer wall surface of the mounting groove 311 to realize the relative fixation of the gasket 10 and the pump head 31 in the radial direction of the gasket 10. Optionally, the pump head 31 is provided with a water inlet 313, the water inlet 313 communicates with the first through hole 17, and the water inlet 313 is located inside the first through hole 17, and the liquid enters the aforementioned impeller 20 from the water inlet 313 and through the first through hole 17.

[0070] By providing that the first substrate 12 and the first side enclosure 13 jointly enclose to form a first through hole 17, the first through hole 17 is suitable for liquid circulation, so that the liquid can flow through the first through hole 17 to the impeller 20, realizing the liquid inlet operation of the pump device 100.

[0071] Please refer to Figure 2 and Figure 3 , the present invention also provides a sealing structure for the pump device 100. The sealing structure includes the impeller 20 and the gasket 10 in the embodiment of the present invention. The impeller 20 abuts against the bottom wall surface of the receiving groove 11, and the impeller 20 is rotatably connected to the gasket 10.

[0072] Optionally, the impeller 20 may be a closed impeller 20, an open impeller 20, a semi-open impeller 20, etc., without limitation. Optionally, the impeller 20 communicates with the aforementioned first through hole 17 and the water inlet 313, and the liquid flows from the first through hole 17 and the water inlet 313 to the impeller 20. The impeller 20 is used to rotate relative to the gasket 10 and the housing 30 and drive the liquid to flow to generate a vortex, improving the output speed of the liquid. Optionally, the impeller 20 is rotatably connected to the aforementioned housing 30. Optionally, the impeller 20 can be driven by driving structures such as a motor, a cylinder, and a hydraulic cylinder (not shown) to rotate relative to the gasket 10 and the housing 30, without limitation.

[0073] Optionally, the impeller 20 can be made of materials that meet the requirements of structural strength, wear resistance, corrosion resistance, and easy processing and forming. Specifically, it can be aluminum alloy, titanium alloy, copper alloy, stainless steel, etc., without limitation. Optionally, a wear-resistant coating (not shown) is provided on the portion of the impeller 20 that abuts against the bottom wall surface of the receiving groove 11 to reduce the wear of the gasket 10 on the impeller 20 when the gasket 10 and the impeller 20 rotate relative to each other. Optionally, the wear-resistant coating can be made of materials with high hardness, good wear resistance, and heat resistance. Specifically, it can be chromium, titanium nitride, hard silver, hard gold, rhodium, nickel, copper, etc., without limitation.

[0074] The sealing structure provided by the present utility model realizes the transportation of liquid by the pump device 100 by arranging the impeller 20 and the gasket 10 in the embodiment of the present utility model. The impeller 20 abuts against the bottom wall surface of the receiving groove 11, and the impeller 20 is rotatably connected to the gasket 10. At the same time, it is not easy for backflow to occur between the impeller 20 and the gasket 10, improving the fluid efficiency of the pump device 100.

[0075] Please refer to Figure 2 and Figure 3 , the impeller 20 includes a second substrate 21 and an annular rib 22. The annular rib 22 is connected to the second substrate 21. The annular rib 22 is a circular ring member. At least a part of the annular rib 22 is received in the receiving groove 11, and the annular rib 22 abuts against the bottom wall surface of the receiving groove 11.

[0076] Optionally, the second substrate 21 is a circular ring member. Optionally, the annular rib 22 can extend along the axial direction of the second substrate 21, or can have an angle with the axial direction of the second substrate 21, without limitation. Optionally, the annular rib 22 and the second substrate 21 can be an integral structure, or can be detachably connected by means of clamping, screwing, riveting, bonding, etc., without limitation. Optionally, the outer peripheral side wall surface of the annular rib 22 is flush with the outer peripheral side wall surface of the second substrate 21, or the outer peripheral side wall surface of the second substrate 21 can also protrude from the outer peripheral side wall surface of the annular rib 22 in the radial direction of the annular rib 22, without limitation.

[0077] Optionally, the entire annular rib 22 can be received in the receiving groove 11, or a part of the annular rib 22 can be received in the receiving groove 11, that is, there is a spacing distance between the surfaces of the first side plate 13 and the second side plate 14 facing away from the first substrate 12 and the second substrate 21.

[0078] By arranging the impeller 20 to include a second substrate 21 and an annular rib 22, the annular rib 22 is connected to the second substrate 21, the annular rib 22 is a circular ring member, at least a part of the annular rib 22 is received in the receiving groove 11, and the annular rib 22 abuts against the bottom wall surface of the receiving groove 11, it is not easy for the liquid in the pump device 100 to flow back through the gap between the annular rib 22 and the bottom wall surface of the receiving groove 11, improving the fluid efficiency of the pump device 100.

[0079] Please refer to Figure 3 , the dimension of the receiving groove 11 in the radial direction is A, and the dimension of the annular rib 22 in the radial direction is B, satisfying: A > B.

[0080] Exemplarily, there is a spacing distance between the annular rib 22 and the aforementioned first side wall 13 and the second side wall 14. Optionally, the annular rib 22 is disposed in the middle of the first side wall 13 and the second side wall 14. Optionally, the spacing distance between the annular rib 22 and the first side wall 13 is greater than the spacing distance between the annular rib 22 and the second side wall 14, and the spacing distance between the annular rib 22 and the first side wall 13 can also be less than the spacing distance between the annular rib 22 and the second side wall 14, without limitation.

[0081] By setting the dimension of the receiving groove 11 in the radial direction as A and the dimension of the annular rib 22 in the radial direction as B, satisfying: A > B, it is easy to position between the gasket 10 and the impeller 20, facilitating the assembly of the gasket 10.

[0082] Please refer to Figure 3 , the gasket 10 includes a first side wall 13 and a second side wall 14. Both the first side wall 13 and the second side wall 14 are circular ring members. The second side wall 14 surrounds the outer periphery of the first side wall 13. The annular rib 22 abuts against the first side wall 13, and / or, the annular rib 22 abuts against the first side wall 13.

[0083] Optionally, when the annular rib 22 abuts against both the first side wall 13 and the second side wall 14, the aforementioned A is equal to B. Optionally, when the annular rib 22 abuts against one of the first side wall 13 and the second side wall 14, the aforementioned A is greater than B.

[0084] By setting the annular rib 22 to abut against the first side wall 13, and / or, the annular rib 22 to abut against the second side wall 14, the sealing performance between the annular rib 22 and the receiving groove 11 is further improved, and the liquid in the pump device 100 is not easily refluxed through the gap between the annular rib 22 and the bottom wall surface of the receiving groove 11 after passing through the impeller 20, improving the fluid efficiency of the pump device 100.

[0085] Please refer to Figure 2 and Figure 3, the pump device 100 further includes a housing 30. The housing 30 has a receiving cavity 32. The sealing structure is adapted to be received in the receiving cavity 32. The gasket 10 is adapted to be fixedly connected to the housing 30. The annular rib 22 is adapted to divide the receiving cavity 32 into a first space 321 and a second space 322. The impeller 20 is adapted to rotate relative to the gasket 10 to drive the liquid to flow from the first space 321 to the second space 322. A flow guiding groove 221 is formed on the surface of the annular rib 22 facing away from the second substrate 21. The flow guiding groove 221 is adapted to communicate the first space 321 and the second space 322.

[0086] Optionally, please refer to Figure 2 , the flow guiding groove 221 may extend along the radial direction of the annular rib 22, or may have an angle with the radial direction of the annular rib 22, without limitation. Optionally, the flow guiding groove 221 may extend linearly or may extend in a curved manner, without limitation.

[0087] Optionally, the distance between the bottom wall surface of the flow guiding groove 221 and the bottom wall surface of the receiving groove 11 in the axial direction of the annular rib 22 is D, and the depth of the receiving groove 11 in the axial direction is C, satisfying: 1 / 20 ≤ D / C ≤ 1 / 10. Specifically, it may be 1 / 20, 1 / 18, 1 / 16, 1 / 14, 1 / 12, 1 / 10, etc., without limitation.

[0088] Optionally, please refer to Figure 3 and Figure 4 , the aforementioned pump head 31 is further provided with a water outlet 314. The first space 321 communicates with the aforementioned water inlet 313 and the first through hole 17. The second space 322 communicates with the water outlet 314. The water outlet 314 is used for discharging the liquid from the pump device 100. Optionally, there is a gap between the second substrate 21 and the inner wall surface of the aforementioned pump head 31, so that the flow guiding groove 221 communicates with the first space 321. Since the depth dimension of the flow guiding groove 221 is small, the volume of the liquid flowing through the flow guiding groove 221 is extremely small relative to the total amount of the liquid in the pump device 100, and the influence on the fluid efficiency of the pump device 100 is small.

[0089] During the relative rotation of the annular rib 22 and the gasket 10, relative friction between the annular rib 22 and the gasket 10 will generate heat and debris generated by wear. By providing a flow guiding groove 221 on the surface of the annular rib 22 facing away from the second substrate 21, and the flow guiding groove 221 is adapted to communicate the first space 321 and the second space 322, the liquid can flow through the flow guiding groove 221 to timely carry away the debris and heat between the annular rib 22 and the gasket 10, prevent further wear of the annular rib 22 and the gasket 10, and prevent the pump device 100 from overheating at the same time.

[0090] Please refer to Figure 2, there are multiple flow guide grooves 221, and the multiple flow guide grooves 221 are arranged at intervals in the circumferential direction of the annular rib 22. Optionally, the extending directions of the multiple flow guide grooves 221 may be the same or different, without limitation. Optionally, the multiple flow guide grooves 221 are equally spaced.

[0091] By arranging multiple flow guide grooves 221, and the multiple flow guide grooves 221 are arranged at intervals in the circumferential direction of the annular rib 22, the heat dissipation effect and chip removal effect of the flow guide grooves 221 are further improved.

[0092] Please refer to Figure 2 and Figure 3 , the impeller 20 further includes blades 23, and the blades 23 are connected to the surface of the second substrate 21 facing away from the annular rib 22.

[0093] Optionally, the blades 23 are bent and extended, and the bending direction of the blades 23 is opposite to the rotation direction of the impeller 20. Optionally, one end face in the length direction of the blades 23 is flush with the outer peripheral surface of the second substrate 21.

[0094] Optionally, the blades 23 and the second substrate 21 may be an integral structure, or may be detachably connected by means such as clamping, screwing, riveting, and bonding, without limitation. Optionally, there may be multiple blades 23, and the multiple blades 23 are arranged at intervals in the circumferential direction of the second substrate 21.

[0095] By arranging that the impeller 20 further includes blades 23, and the blades 23 are connected to the surface of the second substrate 21 facing away from the annular rib 22, when the impeller 20 rotates, it can drive the liquid to flow from the first space 321 to the second space 322 and generate a vortex.

[0096] Please refer to Figure 2 , Figure 3 and Figure 5 , the pump device 100 further includes a rotor 40, and the impeller 20 further includes a connecting portion 24. The connecting portion 24 is connected to the side of the blade 23 away from the second substrate 21, and the connecting portion 24 is adapted to be fixedly connected to the rotor 40.

[0097] Optionally, the connecting portion 24 and the blade 23 may be an integral structure, or may be detachably connected by means such as clamping, screwing, riveting, and bonding, without limitation. Exemplarily, a connecting hole 411 is provided at one end of the rotor 40 close to the impeller 20. The connecting portion 24 protrudes from the surface of the blade 23 away from the second substrate 21 and extends into the connecting hole 411 to fixedly connect the rotor 40 and the impeller 20. Optionally, the connecting portion 24 and the rotor 40 may be fixedly connected by means such as clamping, screwing, welding, and riveting, without limitation. Optionally, both the connecting portion 24 and the blade 23 may be multiple, and at least one connecting portion 24 is provided on the side of each blade 23 away from the second substrate 21. Optionally, the impeller 20 and the rotor 40 may also be an integral structure.

[0098] By providing that the pump device 100 further includes a rotor 40, and the impeller 20 further includes a connecting portion 24 which is connected to the side of the blade 23 away from the second substrate 21, and the connecting portion 24 is adapted to be fixedly connected to the rotor 40, so that the impeller 20 and the rotor 40 are relatively fixed, and the impeller 20 can rotate relative to the gasket 10 and the housing 30 driven by the rotor 40 to drive the liquid to flow.

[0099] Please refer to Figures 2 - 4 , the second substrate 21 encloses to form a second through hole 211, the annular rib 22 is disposed around the outside of the second through hole 211 and has a spaced distance from the second through hole 211, the second through hole 211 communicates with the blade 23, and the second through hole 211 is adapted for liquid to flow through.

[0100] Optionally, the second through hole 211 communicates with the aforementioned first through hole 17 and the water inlet 313, and the second through hole 211 communicates the first space 321 and the second space 322. The liquid enters the first space 321 from the water inlet 313, flows through the second through hole 211 to the blade 23, the impeller 20 rotates to drive the liquid into the second space 322, and is discharged from the aforementioned water outlet 314 out of the pump device 100.

[0101] By providing that the second substrate 21 encloses to form a second through hole 211, the annular rib 22 is disposed around the outside of the second through hole 211 and has a spaced distance from the second through hole 211, the second through hole 211 communicates with the blade 23, and the second through hole 211 is adapted for liquid to flow through, so that the liquid can flow through the second through hole 211 to the blade 23 and generate a vortex by the rotation of the blade 23.

[0102] Please refer to Figure 2 and Figure 3 , the impeller 20 further includes an annular side plate 25 which is connected to the surface of the second substrate 21 facing away from the impeller 20 and is disposed around the outer periphery of the second through hole 211. The gasket 10 has a first through hole 17 which communicates with the second through hole 211, and the annular side plate 25 passes through the first through hole 17.

[0103] Optionally, the annular side plate 25 and the second substrate 21 can be an integral structure, or can be detachably connected by means such as clamping, screwing, riveting and bonding, without limitation. Optionally, there is a gap between the annular side plate 25 and the housing 30 to enable the aforementioned flow guiding groove 221 to communicate with the first space 321.

[0104] Optionally, the annular side plate 25 is a circular ring member, and the inner diameter of the annular side plate 25 gradually decreases in the direction from the blade 23 towards the second substrate 21. Optionally, the inner peripheral wall surface of the annular side plate 25 extends in a curved manner or may also extend in a straight line, without limitation. Optionally, the connection portion 24 between the annular side plate 25 and the second substrate 21 has a smooth transition to reduce the resistance encountered by the liquid flow and simultaneously reduce the stress between the annular side plate 25 and the second substrate 21.

[0105] By providing the annular side plate 25, the annular side plate 25 is connected to the surface of the second substrate 21 facing away from the impeller 20 and is disposed around the outer periphery of the second through-hole 211. The gasket 10 has a first through-hole 17, and the first through-hole 17 communicates with the second through-hole 211. The annular side plate 25 passes through the first through-hole 17, so that after the liquid enters the first space 321 from the water inlet 313, most of the liquid can flow to the impeller 20 through the second through-hole 211 under the guiding action of the annular side plate 25, improving the fluid efficiency of the pump device 100.

[0106] Please refer to Figure 4 and Figure 5 The present invention also provides a pump device 100, which includes a housing 30 and the sealing structure in the embodiment of the present invention. The housing 30 has a receiving cavity 32, the sealing structure is received in the receiving cavity 32, the gasket 10 is fixedly connected to the housing 30, and the impeller 20 is rotatably connected to the housing 30.

[0107] Optionally, the pump device 100 is used to transport a liquid (not shown) to a battery device (not shown), and the liquid is used for heat exchange with the battery device to maintain the operating temperature of the battery device within a preset range. Optionally, the liquid can be water, ethanol, glycerol, ethylene glycol, propylene glycol, etc., without limitation.

[0108] Optionally, the housing 30 includes a pump head 31, a pump body 33, and a bottom cover 34. The pump head 31 is connected to the pump body 33, and the bottom cover 34 is connected to one end of the pump body 33 away from the pump head 31 and encloses to form the receiving cavity 32. The gasket 10 is fixedly connected to the pump head 31. Optionally, the pump head 31 is provided with a water inlet 313 and a water outlet 314. The water inlet 313 communicates with the aforementioned first space 321, and the water outlet 314 communicates with the aforementioned second space 322. The water inlet 313 is adapted for the liquid to enter the receiving cavity 32, and the water outlet 314 is adapted for the liquid to be discharged from the receiving cavity 32.

[0109] Optionally, the pump head 31 and the pump body 33 can be fixedly connected by means of clamping, screwing, riveting, welding, etc., without limitation. Optionally, the pump body 33 and the bottom cover 34 can be an integral structure or can be detachably connected by means of clamping, screwing, and riveting, etc., without limitation. Optionally, the housing 30 can be made of a material that meets the requirements of structural strength, wear resistance, corrosion resistance, and easy processing and forming, specifically, it can be cast iron, copper alloy, stainless steel, aluminum alloy, plastic, etc., without limitation.

[0110] Optionally, the pump device 100 further includes a circuit board 50 and a heat dissipation plate 51. The heat dissipation plate 51 is connected to the bottom cover 34. The circuit board 50 is disposed at one end of the heat dissipation plate 51 facing away from the bottom cover 34. The circuit board 50 is used to connect to the stator 60 of the pump device 100 to control the magnitude of the current passing through the stator 60. The heat dissipation plate 51 is used to dissipate heat from the circuit board 50. Optionally, the heat dissipation plate 51 can be made of aluminum alloy, heat-conducting ceramics, alumina, silicone grease, etc., without limitation.

[0111] For the pump device 100 provided by the present utility model, by adopting the housing 30 and the sealing structure in the embodiment of the present utility model, the housing 30 has an accommodation cavity 32, the sealing structure is received in the accommodation cavity 32, the gasket 10 is fixedly connected to the housing 30, and the impeller 20 is rotatably connected to the housing 30, realizing the rapid transportation of liquid, accelerating the heat exchange efficiency between the liquid and the battery device. At the same time, the liquid in the pump device 100 is not likely to flow back, and the fluid efficiency of the pump device 100 is relatively high.

[0112] Please refer to Figure 5 , the pump device 100 further includes a stator 60, a rotor 40 and a water isolation member 70. The stator 60, the rotor 40 and the water isolation member 70 are all received in the accommodation cavity 32. The water isolation member 70 is fixedly connected to the housing 30 and divides the accommodation cavity 32 into an installation space 323 and a working space 324. The stator 60 is received in the installation space 323 and is fixedly connected to the housing 30. The rotor 40 is received in the installation space 323 and is rotatably connected to the water isolation member 70.

[0113] Optionally, the water isolation member 70 includes a cylinder body 71 and a mounting plate 72. The mounting plate 72 is disposed around the outer periphery of the cylinder body 71. The mounting plate 72 is disposed between the pump body 33 and the pump head 31 and abuts against the pump body 33 and the pump head 31 to divide the accommodation cavity 32 into an installation space 323 and a working space 324. Optionally, the material of the water isolation member 70 is similar to that of the housing 30, for reference only and will not be elaborated further.

[0114] Optionally, the pump device 100 further includes a first sealing ring 80 and a second sealing ring 81. The first sealing ring 80 is disposed between the pump head 31 and the mounting plate 72 and elastically abuts against the pump head 31 and the mounting plate 72. The first sealing ring 80 is disposed between the pump body 33 and the mounting plate 72 and elastically abuts against the pump body 33 and the mounting plate 72 to further improve the sealing performance of the pump device 100, and at the same time improve the sealing performance between the installation space 323 and the working space 324. Optionally, the first sealing ring 80 and the second sealing ring 81 can be made of materials with good elasticity, corrosion resistance and easy processing and molding, specifically rubber, silicone rubber, polytetrafluoroethylene, etc., without limitation.

[0115] Optionally, the stator 60 is electrically connected to the aforementioned circuit board 50. The rotor 40 includes a rotating member 41 and a magnet 42. The magnet 42 is disposed inside the rotating member 41. The rotating member 41 is rotatably connected to the water isolation member 70 and fixedly connected to the impeller 20. When the stator 60 is powered on, a rotating magnetic field is generated. Under the action of the rotating magnetic field, the magnet 42 starts to rotate and drives the impeller 20 to rotate through the rotating member 41. Optionally, the rotating body can be rotatably connected to the water isolation member 70 through structures such as bearings, pins, and guide rails, without limitation. Optionally, the aforementioned connection hole 411 is opened in the rotating member 41.

[0116] By providing the stator 60, the rotor 40, and the water isolation member 70, the stator 60, the rotor 40, and the water isolation member 70 are all received in the accommodation cavity 32. The water isolation member 70 is fixedly connected to the housing 30 and divides the accommodation cavity 32 into an installation space 323 and a working space 324. The stator 60 is received in the installation space 323 and fixedly connected to the housing 30. The rotor 40 is received in the installation space 323 and rotatably connected to the water isolation member 70, so that the stator 60 and the rotor 40 interact with each other through the magnetic field to realize the rotation of the impeller 20 to generate eddy currents. Moreover, the water isolation member 70 separates the stator 60 and the rotor 40, preventing the liquid from flowing to the stator 60 and causing a leakage risk.

[0117] Please refer to Figure 5 , the pump device 100 further includes a rotating shaft 90. The rotating shaft 90 is received in the installation space 323 and connected to the water isolation member 70. The rotor 40 is sleeved on the rotating shaft 90, and the rotating shaft 90 is connected to the impeller 20.

[0118] Optionally, the aforementioned cylinder body 71 is provided with an installation hole 711. One end of the rotating shaft 90 extends into the installation hole 711, and the other end is connected to the impeller 20. Optionally, the rotating shaft 90 can be relatively fixed to the water isolation member 70 or can rotate relative to the water isolation member 70, without limitation. Optionally, the rotating shaft 90 can be relatively fixed to the impeller 20 or can rotate relative to the impeller 20, without limitation. Optionally, the material of the rotating shaft 90 is similar to that of the water isolation member 70, for reference only and will not be elaborated further.

[0119] By providing the rotating shaft 90, the rotating shaft 90 is received in the installation space 323 and connected to the water isolation member 70. The rotor 40 is sleeved on the rotating shaft 90, and the rotating shaft 90 is connected to the impeller 20, so that the rotor 40 and the impeller 20 will not shift under the limiting action of the rotating shaft 90, preventing damage to the rotor 40 and the impeller 20.

[0120] Please refer to Figure 4, the present utility model also provides a thermal management system (not shown), which includes the pump device 100 in the embodiment of the present utility model. Optionally, the thermal management system further includes a heating device, a cooling device, a heat exchanger, an inlet pipe and an outlet pipe. The inlet pipe is communicated with the water inlet 313 of the pump device 100, and the outlet pipe is communicated with the water outlet 314 of the pump device 100. The heat exchanger is connected to the battery device and the outlet pipe, and the outlet pipe is also communicated with the inlet pipe. Both the heating device and the cooling device are connected to the inlet pipe. The heating device is used to heat the liquid, and the cooling device is used to cool the liquid. After being heated by the heating device or cooled by the cooling device, the liquid is transported to the heat exchanger through the pump device 100 and the outlet pipe, and exchanges heat with the battery device in the heat exchanger. After the heat exchange is completed, it flows back to the heating device or the cooling device.

[0121] The thermal management system provided by the present utility model realizes continuous heat management of the battery device and improves the safety of the battery device by adopting a heating device, a cooling device, a heat exchanger, an inlet pipe, an outlet pipe and the pump device 100 in the embodiment of the present utility model.

[0122] The present utility model also provides a vehicle (not shown), which includes a battery device (not shown) and the thermal management system in the embodiment of the present utility model. The thermal management system is adapted to exchange heat with the battery device.

[0123] Optionally, the vehicle further includes a vehicle body, and the battery device is fixedly connected to the vehicle body. Specifically, the housing 30 of the battery device is fixedly connected to the vehicle body. The vehicle in the embodiment of the present utility model is a new energy vehicle with a battery device, and specifically may be a pure electric vehicle, a plug-in hybrid vehicle, an extended-range hybrid vehicle, etc., without limitation.

[0124] The vehicle provided by the present utility model realizes heat management of the battery device by adopting a battery device and the thermal management system in the embodiment of the present utility model, and has the advantage of good heat exchange effect.

[0125] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model.

[0126] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A gasket, characterized in that: for a pump device, the pump device also including an impeller; The gasket is provided with a ring-shaped receiving groove which is connected from end to end. The bottom wall surface of the receiving groove is suitable for abutting against the impeller. The gasket is suitable for relative rotation with the impeller.

2. The gasket according to claim 1, characterized in that The gasket includes a first substrate, a first side panel and a second side panel, the first side panel and the second side panel are both arranged on the first substrate, the first side panel and the second side panel are both annular components, the second side panel surrounds the outer circumference of the first side panel, the first substrate, the first side panel and the second side panel together form the receiving groove, and the first substrate is suitable for abutting against the impeller.

3. The gasket according to claim 2, characterized in that The pump device also includes a shell, and the gasket also includes a first limiting portion, which is arranged on the side of the second side panel facing away from the first side panel, and the first limiting portion is suitable for being matched with the shell to make the gasket and the shell relatively fixed in the circumferential direction of the impeller.

4. The gasket according to claim 3, characterized in that There are a plurality of the first limiting portions, and the plurality of the first limiting portions are arranged at intervals.

5. The gasket according to claim 3, characterized in that The gasket also includes a second limiting portion, which is arranged on the side of the second side panel facing away from the first side panel and connected to the first limiting portion, and the first limiting portion protrudes from the surface of the second limiting portion in the thickness direction of the gasket.

6. The gasket according to claim 5, characterized in that The outer circumferential surface of the first limiting portion is flush with the outer circumferential surface of the second limiting portion.

7. The gasket according to claim 5, characterized in that The first limiting portion is flush with a surface of the first substrate on a side facing away from the receiving groove, and the second limiting portion is flush with a surface of the first substrate on a side facing away from the receiving groove.

8. The gasket according to claim 2, characterized in that The first substrate and the first side panel together form a first through hole, and the first through hole is suitable for liquid circulation.

9. A sealing structure, characterized in that: Used in a pump device, the sealing structure comprises an impeller and a gasket as described in any one of claims 1 to 8, the impeller abuts against the bottom wall of the receiving groove, and the impeller is rotatably connected to the gasket.

10. The sealing structure according to claim 9, characterized in that: The impeller includes a second substrate and an annular rib, wherein the annular rib is connected to the second substrate, at least a portion of the annular rib is received in the receiving groove, and the annular rib abuts against a bottom wall surface of the receiving groove.

11. The sealing structure according to claim 10, characterized in that: The radial dimension of the receiving groove is A, and the radial dimension of the annular rib is B, which satisfies: A>B.

12. The sealing structure according to claim 10, characterized in that: The pump device further comprises a housing, the housing having a receiving cavity, the sealing structure being adapted to be received in the receiving cavity, the gasket being adapted to be connected and fixed to the housing, the annular rib being adapted to separate the receiving cavity into a first space and a second space, and the impeller being adapted to rotate relative to the gasket to drive the liquid to flow from the first space to the second space; A guide groove is formed on a surface of the annular rib facing away from the second substrate, and the guide groove is suitable for connecting the first space and the second space.

13. The sealing structure according to claim 12, characterized in that: There are a plurality of guide grooves, and the plurality of guide grooves are arranged at intervals from each other in the circumferential direction of the annular rib.

14. The sealing structure according to claim 10, characterized in that: The impeller further comprises blades, and the blades are connected to a surface of the second substrate facing away from the annular ribs.

15. A pump device, characterized in that: It comprises a shell and a sealing structure as described in any one of claims 9 to 14, wherein the shell has a containing cavity, the sealing structure is accommodated in the containing cavity, the gasket is connected and fixed to the shell, and the impeller is rotatably connected to the shell.

16. A thermal management system, characterized in that: Comprising a pump device as claimed in claim 15.

17. A vehicle, characterized in that: Comprising the thermal management system of claim 16.

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