Water pump shell, water pump, heat management system and vehicle

Abstract

The utility model discloses a water pump shell, a water pump, a heat management system and a vehicle. The water pump shell comprises a first shell and a gasket, and the gasket is fixed in the first shell through injection molding and used for supporting rotation of an impeller of the water pump. The gasket is fixed in the first shell in the injection molding mode, the connecting strength of the gasket and the first shell is improved, the gasket can be effectively prevented from moving in the using process, gaps in the top of the impeller are reduced as much as possible, leakage of cooling liquid is reduced, and the hydraulic efficiency of the water pump is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of water pumps, and more particularly to a water pump housing, a water pump, a thermal management system and a vehicle. Background Art

[0002] Currently, the primary temperature control modes in automobiles are electric compressor cooling and PTC heating. To achieve energy savings, the use of heat pumps in the thermal management of new energy vehicles is gradually increasing. Three-electric thermal management is a new system that connects the battery, motor, and electronic control unit. It requires a wide range of components and high temperature control precision, with the electronic water pump being a key incremental component.

[0003] In the related art, electronic water pumps are prone to fluid leakage when the impeller rotates, resulting in reduced hydraulic efficiency. Therefore, it is necessary to provide a water pump housing, a water pump, a thermal management system and a vehicle to at least partially solve the above problem. Utility Model Content

[0004] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Utility Model. The Summary of the Utility Model of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides a water pump housing, comprising:

[0006] first shell;

[0007] A gasket is fixed to the first housing by injection molding, and is used to support the rotation of the impeller of the water pump.

[0008] Optionally, the gasket and the first shell are anti-rotationally engaged via a anti-rotation structure.

[0009] Optionally, the anti-rotation structure is a matching protrusion and groove, the protrusion is provided on the gasket and / or the first shell, and the groove is provided on the gasket and / or the first shell.

[0010] Optionally, the gasket comprises:

[0011] A ring body, wherein the ring body is annular;

[0012] A convex block is provided on the ring body and protrudes radially, and the convex block can be embedded in the first shell.

[0013] Optionally, the ring body includes a first ring body and a second ring body fixedly connected along the axial direction, the outer diameter of the first ring body is smaller than that of the second ring body, the protrusion protrudes radially from the first ring body, and the protrusion is fixedly connected to both the first ring body and the second ring body.

[0014] Optionally, the outer side surface of the protrusion and the outer circumferential surface of the second ring body are located on the same circumferential surface.

[0015] Optionally, there are multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the ring body.

[0016] Optionally, the gasket portion is embedded in the first shell by injection molding.

[0017] Optionally, the washer is made of ceramic, or the washer is made of metal and has a wear-resistant coating on its surface.

[0018] Optionally, the water pump housing further comprises:

[0019] A water inlet and a water outlet, wherein the water inlet is located on a first axial side of the gasket, and the water outlet is located on a second axial side of the gasket.

[0020] Optionally, the water pump housing further comprises:

[0021] A second housing is sealed and connected to the first housing to form an accommodating cavity for accommodating the impeller.

[0022] A second aspect of the present invention provides a water pump, comprising an impeller and a water pump housing according to any one of the above technical solutions, wherein the impeller is rotationally engaged with the gasket.

[0023] A third aspect of the present invention provides a thermal management system, comprising a water pump according to any one of the above technical solutions.

[0024] A fourth aspect of the present invention provides a vehicle, comprising the water pump or thermal management system described in any one of the above technical solutions.

[0025] According to a water pump housing, water pump, thermal management system and vehicle of the utility model, by embedding the gasket in the first housing, the connection strength between the gasket and the first housing is improved, the gasket can be effectively prevented from moving during use, the axial movement of the rotor can be prevented, and the gap at the top of the impeller can be reduced as much as possible, thereby reducing the leakage of coolant and improving the hydraulic efficiency of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings of the embodiments of the present invention are used as part of the present invention to understand the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0027] Figure 1 It is a perspective view of a water pump according to a preferred embodiment of the present utility model;

[0028] Figure 2 is a cross-sectional view of a water pump according to a preferred embodiment of the present utility model;

[0029] Figure 3 is a perspective view of a gasket according to a preferred embodiment of the present utility model;

[0030] Figure 4 for Figure 2 A partial enlarged view of the

[0031] Figure 5 is a cross-sectional view of a water blocking sleeve according to a preferred embodiment of the present utility model;

[0032] Figure 6 It is a cross-sectional view of a rotor according to a preferred embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1: First shell 101: Water inlet

[0035] 102: Water outlet 103: Connecting ear

[0036] 2: Waterproof jacket 201: rotor cavity

[0037] 202: Shaft seat 203: Connecting plate

[0038] 204: Connecting hole 205: Sealing groove

[0039] 3: Connector 4: Bottom cover

[0040] 5: Second housing 501: Connecting ear

[0041] 6: Screw 7: Rotor

[0042] 8: Pump shaft 9: Stator

[0043] 10: Thermal pad 11: Sealing ring

[0044] 12: Washer 1201: Ring body

[0045] 1202: Bump 1203: First ring

[0046] 1204: Second ring 13: First cover

[0047] 1301: Coolant inlet 1302: Coolant channel

[0048] 1303: Connecting arm 14: Second cover

[0049] 15: First bearing 16: Second bearing

[0050] 17: Shaft chamber 18: Rotor housing

[0051] 19: Impeller 20: Rotor core

[0052] 21: rotor magnet 22: screw

[0053] 23: Control device 24: Sealing ring DETAILED DESCRIPTION

[0054] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0055] In order to thoroughly understand the present invention, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the concepts of these exemplary embodiments to those skilled in the art. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0056] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0057] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0058] The utility model discloses a water pump housing, a water pump, a thermal management system and a vehicle.

[0059] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0060] like Figure 1 、 Figure 2 、 Figure 3 As shown, in a preferred embodiment, a water pump housing includes: a first housing 1 and a gasket 12; the first housing 1 is a pump head of the water pump;

[0061] The coolant is introduced into the first housing 1 and discharged from the first housing 1. The coolant is pressurized in the water pump to ensure that the coolant circulates in the thermal management system to cool the vehicle's engine, battery, and electronic control device.

[0062] The gasket 12 is arranged in the first housing 1. The gasket 12 and the first housing 1 can be manufactured by injection molding to form a fixed connection structure, and the gasket 12 is embedded in the first housing 1. The gasket 12 abuts against the first end of the impeller 19 (rotor 7) of the water pump to support the rotation of the impeller 19 (rotor 7) of the water pump.

[0063] The water pump housing in this embodiment fixes the gasket in the first housing by injection molding, which improves the connection strength between the gasket and the first housing, effectively prevents the gasket from moving during use, prevents axial movement of the rotor, and minimizes the gap at the top of the impeller, thereby reducing coolant leakage and improving the hydraulic efficiency of the water pump.

[0064] In one embodiment, the gasket 12 and the first shell 1 are prevented from rotating by a rotation-stopping structure. During use, the gasket 12 will be affected by the friction between the impeller 19, and the gasket 12 tends to rotate. The rotation-stopping structure can prevent the gasket 12 and the first shell 1 from rotating relative to each other during use.

[0065] In one embodiment, the anti-rotation structure is a protrusion and a groove, the protrusion is provided on the gasket 12 and / or the first housing 1 , and the groove is provided on the gasket 12 and / or the first housing 1 .

[0066] There are many ways to set the bumps and grooves: the bumps are set on the gasket 12, the grooves are set on the first shell 1, and the bumps are inserted into the grooves to form a connection structure; the grooves are set on the gasket 12, the bumps are set on the first shell 1, and the bumps are inserted into the grooves to form a connection structure; the bumps and grooves are set on the gasket 12 at the same time, and the bumps and grooves are set on the first shell 1 at the same time, the bumps of the gasket 12 are inserted into the grooves of the first shell 1 to form a connection structure, the bumps of the first shell 1 are inserted into the grooves of the gasket 12 to form a connection structure, and other possible situations.

[0067] In one embodiment, Figure 3 As shown, the gasket 12 comprises:

[0068] The ring body 1201 is annular;

[0069] The protrusion 1202 is provided on the ring body 1201 and protrudes radially. The protrusion 1202 can be embedded in the first shell 1.

[0070] During the manufacturing process of the gasket 12 and the first housing 1 by injection molding, the protrusion 1202 is embedded in the first housing 1, and the gasket 12 and the first housing 1 have a high connection strength, and the gasket 12 is not prone to rotation, skew, etc.

[0071] In one embodiment, Figure 3 As shown, the ring body 1201 includes a first ring body 1203 and a second ring body 1204 fixedly connected along the axial direction. The outer diameter of the first ring body 1203 is smaller than that of the second ring body 1204. The protrusion 1202 protrudes radially from the first ring body 1203. The protrusion 1202 is fixedly connected to the first ring body 1203 and the second ring body 1204.

[0072] By securely connecting the bumps 1202 to both the first ring body 1203 and the second ring body 1204, the connection between the bumps 1202 and the ring body 1201 is stronger, making it less susceptible to breakage. Furthermore, if there are multiple bumps 1202, grooves are formed between adjacent bumps 1202, meaning that the gasket 12 has both a bump and a groove structure. This is because the injection molding process dictates a corresponding structure on the first housing 1, meaning that the first housing 1 also has both a bump and a groove structure. This design strengthens the connection between the ring body 1201 and the first housing 1, effectively preventing the gasket 12 from shifting during use.

[0073] In one embodiment, Figure 3 As shown, the outer side surface of the projection 1202 is located on the same circumferential surface as the outer circumferential surface of the second ring body 1204. That is, along the radial direction of the ring body 1201, the projection 1202 does not protrude from the second ring body 1204, which is conducive to the miniaturization of the gasket 12.

[0074] It can be understood that the protrusion 1202 can be fixed to the outer peripheral side of the first ring body 1203 at one side, the bottom surface of the protrusion 1202 adjacent to the aforementioned side surface is fixed to the top surface of the second ring body 1204, and the outer side surface of the protrusion 1202 is flush with the outer peripheral surface of the second ring body 1204.

[0075] In one embodiment, Figure 3 As shown, there are multiple protrusions 1202, and the multiple protrusions 1202 are arranged at intervals along the circumference of the ring body 1201. Figure 3 The middle washer 12 includes a plurality of protrusions 1202 spaced apart along the circumference of the ring body 1201 . The plurality of protrusions 1202 and the ring body 1201 may be integrally formed.

[0076] In one embodiment, Figure 4 As shown, the gasket 12 is partially embedded in the first housing 1 by injection molding. It is understandable that the gasket 12 can be partially embedded in the first housing 1 to improve the connection strength between the gasket 12 and the first housing 1, and partially exposed outside the entity of the first housing 1. In this way, when the gasket 12 supports the impeller 19 to rotate, the exposed portion abuts against the impeller 19 of the water pump, thereby reducing the gap between the impeller 19 and the gasket 12, reducing the leakage of coolant, and improving the hydraulic efficiency of the water pump. In addition, the injection mold structure used for partially embedding the gasket 12 in the first housing 1 by injection molding will be simpler than the injection mold structure used for embedding the gasket 12 entirely in the first housing 1 by injection molding, and can be selected according to actual needs.

[0077] It is understandable that in the embodiment where the gasket 12 is entirely embedded in the first housing 1 by injection molding, only the axial end face is exposed to abut against the impeller 19 of the water pump. Figure 4 In the structure, the entity of the first shell 1 will also extend into the inner ring of the gasket 12. Under this structure, a higher connection strength can be obtained between the gasket 12 and the first shell 1, which can more effectively prevent the gasket 12 from moving during use.

[0078] In one embodiment, the material of the washer 12 is ceramic, or the material of the washer 12 is metal and a wear-resistant coating is provided on the surface, so that the washer 12 has high wear resistance, is not prone to wear in the friction matching structure with the rotor 7, and remains deformed for a long time.

[0079] In one embodiment, Figure 1 、 Figure 2 As shown, the water pump housing further includes: a water inlet 101 and a water outlet 102;

[0080] The water inlet 101 may be provided in the middle of the first housing 1 and located on the first axial side of the gasket 12;

[0081] The water outlet 102 may be provided on a side of the first housing 1 and located on the second axial side of the gasket 12 .

[0082] Coolant is introduced into the first housing 1 through the water inlet 101, passes through the interior of the gasket 12, and is driven out of the first housing 1 through the water outlet 102 by the impeller 19. The inner diameter of the gasket 12 is not smaller than that of the water inlet 101 and does not obstruct the coolant.

[0083] In one embodiment, Figure 2 As shown, the gasket 12 is disposed near the water inlet 101 and is adapted to rotatably engage with the top of the impeller 19 .

[0084] Because the water inlet 101 is coaxially arranged with the impeller 19 , by placing the gasket 12 close to the water inlet 101 and around the water inlet 101 , the top of the impeller 19 can be supported, forming a rotationally matched relationship with the top of the impeller 19 .

[0085] In one embodiment, Figure 1 、 Figure 2 As shown, the water pump housing further includes: a second housing 5, which is the pump body of the water pump;

[0086] The second housing 5 is sealedly connected to the first housing 1 to form an accommodating cavity for accommodating the impeller 19, ensuring that no coolant leaks from the connection between the second housing 5 and the first housing 1;

[0087] The rotor 7 is disposed in the second housing 5 and is used to drive the coolant to flow in the water pump. The rotation of the rotor 7 pressurizes the coolant and increases the hydraulic pressure of the coolant.

[0088] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention further provides a water pump, comprising an impeller 19 and a water pump housing according to any one of the above embodiments, wherein the impeller 19 is rotatably engaged with the gasket 12. The water pump is provided in a thermal management system of a vehicle to drive the flow of coolant.

[0089] In one embodiment, Figure 2 As shown, the water pump also includes:

[0090] The stator 9 is disposed in the second housing 5 and surrounds the rotor 7 to drive the rotor 7 to rotate.

[0091] In one embodiment, Figure 2 As shown, the water pump also includes:

[0092] The water-isolating jacket 2 is provided in the second housing 5 and is located between the rotor 7 and the stator 9 , and is used to isolate the coolant between the rotor 7 and the stator 9 .

[0093] The function of the water-blocking sleeve 2 is to separate the stator 9 from the rotor 7, thereby separating the dry cavity and the wet cavity inside the water pump and preventing the stator 9 and the control device 23 from short-circuiting due to the coolant.

[0094] In one embodiment, Figure 2 、 Figure 5 As shown, the watertight sleeve 2 includes:

[0095] The rotor cavity 201 extends into the second housing 5 and is used to accommodate the rotor 7. The stator 9 is arranged around the rotor cavity 201.

[0096] The connecting plate 203 is disposed around the rotor cavity 201 and is connected to the rotor cavity 201 . The connecting plate 203 is clamped and fixed by the first housing 1 and the second housing 5 .

[0097] The edge of the first shell 1 is provided with a connecting ear 103, the edge of the second shell 5 is provided with a connecting ear 501, and the connecting plate 203 is provided with a corresponding connecting hole 204. The first shell 1 and the waterproof sleeve 2 and the second shell 5 are assembled using screws 6, and can also be assembled using plastic welding.

[0098] In one embodiment, Figure 2 As shown, the water pump also includes:

[0099] The pump shaft 8 is disposed in the rotor cavity 201 and is used to support the rotation of the rotor 7;

[0100] A shaft seat 202 is provided in the rotor cavity 201 , and the second end of the pump shaft 8 is provided in the shaft seat 202 .

[0101] A solution of pre-embedded parts and plastic coating is used between the water-blocking sleeve 2 and the pump shaft 8. Alternatively, the pump shaft 8 can be fixed by pressing, assembling or welding.

[0102] In one embodiment, Figure 2 As shown, a sealing ring 11 is provided between the connecting plate 203 and the first housing 1;

[0103] A sealing groove 205 is provided on one side of the connecting plate 203 facing the first housing 1 for accommodating the sealing ring 11 .

[0104] The sealing ring 11 ensures that the coolant does not leak from the connection between the connecting plate 203 and the first housing 1 .

[0105] In one embodiment, Figure 2 As shown, a sealing ring 11 is provided between the connecting plate 203 and the second housing 5;

[0106] A sealing groove is provided on one side of the second housing 5 facing the connecting plate 203 for accommodating the sealing ring 11 .

[0107] The sealing ring 11 ensures that the coolant does not enter the connection between the connecting plate 203 and the second housing 5, thereby preventing damage to the stator 9 and the control device 23.

[0108] In one embodiment, Figure 2 、 Figure 4 As shown, the rotor 7 comprises:

[0109] The first cover plate 13 abuts against the gasket 12. The first cover plate 13 is provided with a coolant inlet 1301 for introducing coolant. The water inlet 101 of the first housing 1 is provided corresponding to the coolant inlet 1301.

[0110] The second cover plate 14 is connected to the first cover plate 13 and is separated by a predetermined distance. A coolant channel 1302 is provided between the second cover plate 14 and the first cover plate 13. The coolant channel 1302 is connected to the coolant inlet 1301. The water outlet 102 of the first housing 1 is provided corresponding to the coolant channel 1302.

[0111] The impeller 19 is provided on the second cover plate 14 and is used to drive the coolant to flow in the coolant channel 1302 , and the flow direction is shown by the dotted line in the figure.

[0112] In one embodiment, Figure 2 、 Figure 6 As shown, the rotor 7 also includes:

[0113] The rotor housing 18 is connected to the second cover plate 14 and is located on opposite sides of the second cover plate 14 from the first cover plate 13. The rotor housing 18 is provided with a sealed cavity.

[0114] The rotor core 20 is disposed in the sealed cavity of the rotor housing 18;

[0115] The rotor magnet 21 is disposed on the rotor core 20 .

[0116] In one embodiment, Figure 2 、 Figure 6 As shown, the rotor 7 also includes:

[0117] The shaft chamber 17 connects the second cover plate 14 and the rotor housing 18 and is used to accommodate the pump shaft 8 .

[0118] In one embodiment, Figure 2 、 Figure 6 As shown, the rotor 7 also includes:

[0119] A first bearing 15 is provided at a first end of the shaft chamber 17 and is capable of supporting the pump shaft 8;

[0120] A second bearing 16 is provided at a second end of the shaft chamber 17 and is capable of supporting the pump shaft 8;

[0121] The rotor 7 rotates around the pump shaft 8 via a first bearing 15 and a second bearing 16 .

[0122] In one embodiment, Figure 2 、 Figure 4 As shown, the rotor 7 also includes:

[0123] The connecting arm 1303 connects the second cover plate 14 and the first cover plate 13 so that the second cover plate 14 and the first cover plate 13 are spaced apart by a predetermined distance.

[0124] The plurality of connecting arms 1303 are spaced apart, and the gaps between the connecting arms 1303 allow coolant to pass through. The connecting arms 1303 and the first cover plate 13 can be made integrally, and can be connected to the second cover plate 14 by welding.

[0125] In one embodiment, the first cover plate 13 is made of carbon fiber reinforced plastic, and the second cover plate 14 is made of glass fiber reinforced plastic.

[0126] The materials of the first cover plate 13 and the second cover plate 14 can both be PPS, but the added fibers are different. The first cover plate 13 needs to be rubbed all the time, so carbon fiber (PPS+CF) for friction self-lubrication is added. The second cover plate 14 uses a material with added glass fiber (PPS+GF) for the sake of plastic coating strength.

[0127] In one embodiment, Figure 1 、 Figure 2 As shown, the water pump also includes:

[0128] The control device 23 is disposed in the second housing 5 and is electrically connected to the stator 9 .

[0129] In one embodiment, Figure 1 、 Figure 2 As shown, the water pump also includes:

[0130] The connector 3 is disposed outside the second housing 5 and is electrically connected to the control device 23 .

[0131] The connector 3 can be connected to the control device and power supply of the thermal management system to control the operation of the water pump and supply power to the water pump.

[0132] In one embodiment, Figure 1 、 Figure 2 As shown, the water pump also includes:

[0133] A bottom cover 4 is connected to the second housing 5 and is used to close the bottom end of the second housing 5;

[0134] The thermal pad 10 is disposed between the control device 23 and the bottom cover 4 and is used to conduct heat from the control device 23 to the bottom cover 4 for dissipation.

[0135] The thermal pad 10 can be made of thermal grease and is in close contact with the control device 23 and the bottom cover 4 respectively, so as to transfer the heat on the control device 23 to the outside and avoid heat accumulation leading to component failure.

[0136] A sealing ring 24 is further provided between the bottom cover 4 and the second housing 5 to ensure that coolant does not enter the connection between the bottom cover 4 and the second housing 5 to prevent damage to the control device 23 .

[0137] The bottom cover 4 and the second housing 5 are assembled using screws 22 or plastic welding.

[0138] An embodiment of the present invention further provides a thermal management system, comprising the water pump according to any one of the above embodiments, wherein the water pump is disposed in the thermal management system of a vehicle and is used to drive the flow of coolant.

[0139] An embodiment of the present invention further provides a vehicle, comprising the thermal management system of any one of the above embodiments, and the vehicle may be a fuel vehicle, a new energy vehicle, or a hybrid vehicle.

[0140] The thermal management system can provide heating or cooling functions for the vehicle's passenger compartment, engine, motor, battery, electronic control device, etc.

[0141] The function of the water pump is to pressurize the coolant and ensure that the coolant circulates in the thermal management system to cool the car's passenger compartment, engine, motor, battery, electronic control device, etc.

[0142] A water pump housing, a water pump, a thermal management system, and a vehicle according to the utility model have the following characteristics:

[0143] By embedding the gasket in the first shell, the connection strength between the gasket and the first shell is improved, which can effectively prevent the gasket from moving during use, minimize the gap at the top of the impeller, and improve the hydraulic efficiency of the water pump.

[0144] The processes and steps described in all the preferred embodiments described above are merely examples. Unless adverse effects occur, various processing operations may be performed in a different order from the above process. The order of the steps in the above process may also be increased, combined, or deleted according to actual needs.

[0145] In understanding the scope of the present invention, the term "comprise" and its derivatives as used herein are intended to be open terms that specify the presence of stated features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unstated features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "include," "have," and their derivatives.

[0146] As used herein, the terms "attached" or "attached" include: configurations where an element is directly secured to another element by securing it directly to the other element; configurations where an element is indirectly secured to the other element by securing it to an intermediate member that is in turn secured to the other element; and configurations where one element is integral with the other, i.e., one element is substantially a part of the other. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "secure," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent an amount of deviation that would modify the term such that the end result would not be significantly changed.

[0147] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise indicated.

[0148] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. In addition, those skilled in the art will understand that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of protection claimed by the present invention.

Claims

1. A water pump housing, characterized in that: include: a first housing (1); A gasket (12) is fixed to the first housing (1) by injection molding, and the gasket (12) is used to support the rotation of an impeller (19) of a water pump.

2. The water pump housing according to claim 1, characterized in that The washer (12) and the first housing (1) are engaged in a rotation-stopping manner via a rotation-stopping structure.

3. The water pump housing according to claim 2, characterized in that The anti-rotation structure is a matching protrusion and groove, the protrusion is arranged on the gasket and / or the first shell, and the groove is arranged on the gasket and / or the first shell.

4. The water pump housing according to claim 3, characterized in that The gasket (12) comprises: A ring body (1201), wherein the ring body (1201) is annular; A convex block (1202) is provided on the ring body (1201) and protrudes radially, and the convex block (1202) can be embedded in the first shell (1).

5. The water pump housing according to claim 4, characterized in that: The ring body (1201) includes a first ring body (1203) and a second ring body (1204) fixedly connected in the axial direction, the outer diameter of the first ring body (1203) is smaller than that of the second ring body (1204), the protrusion (1202) protrudes radially from the first ring body (1203), and the protrusion (1202) is fixedly connected to both the first ring body (1203) and the second ring body (1204).

6. The water pump housing according to claim 5, characterized in that The outer side surface of the protrusion (1202) and the outer peripheral surface of the second ring body (1204) are located on the same circumferential surface.

7. The water pump housing according to claim 4, characterized in that There are a plurality of protrusions (1202), and the plurality of protrusions (1202) are arranged at intervals along the circumference of the ring body (1201).

8. The water pump housing according to claim 1, characterized in that The gasket portion is embedded in the first shell by injection molding.

9. The water pump housing according to claim 1, characterized in that The material of the washer (12) is ceramic, or the material of the washer (12) is metal and a wear-resistant coating is provided on the surface.

10. The water pump housing according to claim 1, characterized in that Also includes: A water inlet (101) and a water outlet (102), wherein the water inlet (101) is located on a first axial side of the gasket (12), and the water outlet (102) is located on a second axial side of the gasket (12).

11. The water pump housing according to claim 1, characterized in that Also includes: A second housing (5) is sealed and connected to the first housing (1) to form an accommodating chamber for accommodating the impeller (19).

12. A water pump, characterized in that: The invention comprises an impeller (19) and a water pump housing according to any one of claims 1 to 11, wherein the impeller (19) is rotationally engaged with the gasket (12).

13. A thermal management system, characterized in that: Comprising a water pump according to claim 12.

14. A vehicle, characterized in that: Comprising the water pump according to claim 12 or the thermal management system according to claim 13.

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