Water tank assembly for vehicle and vehicle

Abstract

The present application discloses a water tank assembly for a vehicle and a vehicle. The water tank assembly includes: a plurality of working boxes, each of which is provided with a working chamber; a liquid injection box, which is provided with a liquid injection chamber, and the liquid injection chamber is selectively communicated with the plurality of working chambers; wherein the liquid injection box and the plurality of working boxes are integrally formed parts, the plurality of working boxes are spaced apart from each other, and the liquid injection box is arranged between the plurality of working boxes to separate at least part of the plurality of working boxes. The water tank assembly according to the present application occupies a small space in the vehicle, reduces the design difficulty of the engineer for the whole vehicle, reduces the installation man-hours and labor costs, and improves the production efficiency of the whole vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular, to a water tank assembly for a vehicle and a vehicle. Background Art

[0002] Three-way water circulation is generally adopted in existing domestic electric vehicles, namely: three loops of a battery cooling system, an electric motor cooling system, and a heating system. Since the battery, the electric motor, and the heating system have different temperature requirements, three auxiliary water tanks need to be designed respectively, namely: an auxiliary water tank for the battery cooling system, an auxiliary water tank for the electric motor cooling system, and an auxiliary water tank for the heating system, which are respectively used for water replenishment and degassing of the battery cooling system, the electric motor cooling system, and the heating system.

[0003] However, in the actual process, the following problems exist in the three independent auxiliary water tanks:

[0004] 1) When adding liquid in the general assembly workshop, three vacuum pumping and three liquid adding processes are required. Therefore, the working hours of workers increase, which does not meet the production rhythm, seriously affecting the company's production and economic efficiency.

[0005] 2) The number of parts of the auxiliary water tank and the bracket is increased. Different positions of the auxiliary water tank and the bracket will result in different occupied layout spaces, increasing the design difficulty of the overall vehicle layout; at the same time, the installation working hours are increased, the labor cost is increased, and the production efficiency of the whole vehicle is reduced. Summary of the Invention

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present application is to provide a water tank assembly for a vehicle, which occupies a small space in the vehicle, reduces the design difficulty of the overall vehicle for engineers, reduces the installation working hours and labor costs, and improves the production efficiency of the whole vehicle.

[0007] The present application also provides a vehicle having the above water tank assembly.

[0008] The water tank assembly for a vehicle according to the present application includes: a plurality of working boxes, each of the working boxes is provided with a working chamber; a liquid injection box, the liquid injection box is provided with a liquid injection chamber, and the liquid injection chamber is selectively communicated with the plurality of working chambers; wherein the liquid injection box and the plurality of working boxes are integrally formed.

[0009] The plurality of working boxes are spaced apart from each other, and the liquid injection box is disposed between the plurality of working boxes to separate at least part of the plurality of working boxes.

[0010] The water tank assembly for a vehicle according to the present application integrates a liquid injection box body and multiple working box bodies, reducing the space occupied by the water tank assembly in the vehicle, reducing the design difficulty of the engineer for the whole vehicle, reducing the installation man-hours and labor costs, and improving the production efficiency of the whole vehicle. According to an embodiment of the present application, each of the working box bodies includes: an upper box body and a lower box body disposed on the lower side of the upper box body. The multiple upper box bodies are spaced apart from each other by the liquid injection box body, and a heat insulation air layer is provided between two adjacent lower box bodies.

[0011] According to an embodiment of the present application, the multiple working box bodies include: a motor cooling box body, a warm air cooling box body, and a battery cooling box body. The multiple working chambers include: a motor cooling chamber disposed in the motor cooling box body, a warm air cooling chamber disposed in the warm air cooling box body, and a battery cooling chamber disposed in the battery cooling box body.

[0012] According to an embodiment of the present application, the liquid injection chamber is configured in a "T" shape and includes a first liquid injection section and a second liquid injection section intersecting each other. The first liquid injection section is disposed between the motor cooling box body, the warm air cooling box body, and the battery cooling box body. The second liquid injection section is communicated with the first liquid injection section and is disposed between the warm air cooling box body and the battery cooling box body.

[0013] According to an embodiment of the present application, a communication hole communicating the liquid injection chamber and the working chamber is provided on the liquid injection box body;

[0014] The water tank assembly further includes: an operating mechanism at least partially disposed in the liquid injection chamber. A plug for selectively blocking the communication hole is provided on the operating mechanism.

[0015] According to an embodiment of the present application, the operating mechanism includes: a support rod assembly, one end of the support rod assembly is connected to the plug through a first compression spring; a transmission member, one end of the transmission member is connected to the plug, and the other end of the transmission member extends out of the liquid injection chamber.

[0016] According to an embodiment of the present application, the transmission member includes: a first pull rod, the upper end of the first pull rod extends out of the liquid injection chamber; a transmission rack and a transmission gear meshing with each other, the transmission rack is fixedly connected to the first pull rod, and the transmission gear is rotatably disposed on the support rod assembly through a pivot shaft; a cable, one end of the cable is wound around the pivot shaft, and the other end of the cable is connected to the plug.

[0017] According to an embodiment of the present application, the transmission member further includes: a second pull rod, the second pull rod includes: a rod body and a convex portion provided at the lower end of the rod body; the support rod assembly further includes: a vertical sleeve, a through hole for the rod body to pass through is provided on the top wall of the vertical sleeve, the convex portion is provided inside the vertical sleeve, and the size of the convex portion is larger than the aperture of the through hole.

[0018] According to an embodiment of the present application, a handle is provided at the upper end of the first pull rod; the water tank assembly further includes: a tank cover for sealing the liquid injection chamber and the plurality of working chambers, a guide groove for the handle to slide is provided on the tank cover, and the upper end of the guide groove is bent to form a limiting groove that can selectively cooperate with the handle and limit the downward movement of the first pull rod.

[0019] The vehicle according to the present application includes the above-mentioned water tank assembly. Due to the provision of the above-mentioned water tank assembly according to the present application, the efficiency of injecting coolant during vehicle factory production is improved, the labor cost of workers is reduced, the work efficiency is improved, and at the same time, the layout of components inside the vehicle is also easier.

[0020] The additional aspects and advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic diagram of a water tank assembly according to an embodiment of the present application;

[0023] Figure 2 is an exploded view of a water tank assembly according to an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of a water tank assembly according to an embodiment of the present application in one direction;

[0025] Figure 4 is a schematic diagram of a water tank assembly according to an embodiment of the present application in another direction;

[0026] Figure 5 is a schematic diagram of an operating mechanism according to an embodiment of the present application;

[0027] Figure 6 is a schematic diagram of the plug of the operating mechanism pressing the communication hole according to an embodiment of the present application;

[0028] Figure 7 is a schematic diagram of the plug of the operating mechanism loosening the communication hole according to an embodiment of the present application.

[0029] Reference numerals:

[0030] Water tank assembly 100,

[0031] Liquid injection box body 110, liquid injection chamber 101,

[0032] Motor cooling box body 120, motor cooling chamber 102,

[0033] Heating air cooling box body 130, heating air cooling chamber 103,

[0034] Battery cooling box body 140, battery cooling chamber 104,

[0035] Operating mechanism 150, first pull rod 151a, transmission rack 151b, transmission gear 151c, cable 151d, pivot shaft 151e, plug 152, support rod assembly 153, vertical sleeve 153a, through hole, second pull rod 154, rod body 154a, convex portion 154b, handle 155, base 156, first compression spring 157, second compression spring 158,

[0036] Box cover 160, liquid injection port cover 170, guide groove 106, limit groove 107, liquid injection port 108. Detailed implementation manners

[0037] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0038] Reference will be made below to Figures 1-7 describe the water tank assembly 100 for a vehicle according to an embodiment of the present application.

[0039] The water tank assembly 100 for a vehicle according to the present application includes: a liquid injection box body 110 and a plurality of working box bodies. Each working box body is provided with a working chamber, and the working chamber can be used to accommodate a coolant.

[0040] The liquid injection box body 110 is provided with a liquid injection chamber 101. The liquid injection chamber 101 is selectively communicated with the plurality of working chambers. Thus, by injecting the coolant into the liquid injection chamber 101, the coolant can be indirectly injected into the plurality of working chambers, so that it is not necessary to inject the coolant into each working chamber separately, improving the injection efficiency and reducing the injection time.

[0041] In addition, the liquid injection box body 110 and the multiple working box bodies are integrally formed, reducing the number of water tank brackets, decreasing the occupied space of the water tank assembly 100, making it easier to standardize the overall layout and design of the vehicle, reducing the production man-hours of the water tank assembly, lowering the labor cost, and improving the installation efficiency and production efficiency of the water tank assembly.

[0042] For the water tank assembly 100 for a vehicle according to the present application, by integrating the liquid injection box body 110 and the multiple working box bodies, the occupied space of the water tank assembly 100 in the vehicle is reduced, the design difficulty of the vehicle by engineers is decreased, the installation man-hours and labor cost are reduced, and the production efficiency of the whole vehicle is improved.

[0043] In addition, since the liquid injection box body 110 and the multiple working box bodies are integrated, when the vehicle leaves the factory, the liquid injection chamber 101 and the multiple working chambers do not need to be evacuated and filled separately. Only by evacuating or filling the liquid injection chamber 101, the multiple working chambers can be evacuated and filled simultaneously, thereby reducing the man-hours of workers and greatly improving the liquid filling efficiency of the water tank assembly 100.

[0044] It should be noted that each working box body is provided with a liquid injection port 108 communicating with the working chamber and the liquid injection chamber 101. After the vehicle has been used for a period of time, the liquid can be specifically injected into the working chamber 101 with less coolant through the liquid injection port 108. The water tank assembly 100 of the embodiment of the present application further includes a liquid injection port cover 170 for sealing the liquid injection port 108.

[0045] Specifically, when the vehicle leaves the factory, the multiple working chambers can be evacuated simultaneously through the liquid injection chamber 101, and then the multiple working chambers can be filled simultaneously through the liquid injection chamber 101, thereby improving the liquid filling efficiency and reducing the labor cost. During the use of the vehicle, if the coolant in the working chamber needs to be replenished, the corresponding liquid injection port cover 170 can be opened and the liquid can be injected only into the working chamber that needs to be replenished with coolant through the independent liquid injection port 108, so that the liquid injection is more targeted and the working chamber that needs to be replenished with coolant can be filled quickly.

[0046] According to some embodiments of the present application, the multiple working box bodies are spaced apart from each other, and the liquid injection box body 110 is disposed between the multiple working box bodies to space apart at least part of the multiple working box bodies. The multiple working box bodies are spaced apart from each other, so that heat exchange does not occur between the coolants in the multiple working chambers, or the heat exchange rate between the coolants in the multiple working chambers is greatly reduced.

[0047] Specifically, each working box body includes: an upper box body and a lower box body disposed on the lower side of the upper box body. The space inside the upper box body and the space inside the lower box body communicate with each other. The space inside the upper box body and the space inside the lower box body together form a working chamber. A plurality of upper box bodies are spaced apart from each other by a liquid injection box body 110. An insulating air layer is provided between two adjacent lower box bodies. It should be noted that part of the side wall of the liquid injection box body 110 can be the same side wall as part of the side walls of a plurality of working box bodies.

[0048] That is to say, two adjacent working box bodies in the present application do not contact each other. In the middle, they are either spaced apart by an insulating air layer or by the liquid injection box body 110. After the liquid injection chamber 101 finishes injecting liquid into a plurality of working chambers, there will be no coolant left in the liquid injection chamber 101. Therefore, during normal driving of the vehicle, a plurality of upper box bodies are also spaced apart from each other by an air layer.

[0049] In some embodiments of the present application, the highest point of the coolant in each working chamber is set at the bottom of the liquid injection chamber 101. Thus, when the coolant in each working chamber is added to the allowed highest level, there will be no residual coolant in the liquid injection chamber 101, thereby further reducing the heat exchange rate of the coolant in a plurality of liquid injection chambers 101 and even preventing the heat exchange of the coolant in a plurality of liquid injection chambers 101.

[0050] It should be noted that the volume of each working chamber can be determined by calculation and the maximum scale line and minimum scale line can be determined accordingly. Then, through shape optimization, the maximum scale lines of a plurality of working chambers can be made equal in height. The lowest surface of the liquid injection chamber 101 can be equal in height to the maximum scale lines of a plurality of working chambers. Due to the principle of communicating vessels, when the total filling amount is certain, the coolant will eventually be at the maximum scale lines of a plurality of chambers; it should be noted that the volume of the liquid injection chamber 101 should not be too small to avoid overflow of the liquid injection chamber 101 due to too large a coolant flow rate; the coolant volumes in a plurality of working chambers are different, so the flow rates of each chamber should be optimized according to the size of the flow rate ratio to avoid a chamber overflowing the highest scale line and flowing into the liquid injection chamber 101 too quickly due to too fast filling, resulting in coolant overflow.

[0051] In some embodiments of the present application, a plurality of working box bodies include: a motor cooling box body 120, a warm air cooling box body 130, and a battery cooling box body 140. A plurality of working chambers include: a motor cooling chamber 102 disposed in the motor cooling box body 120, a warm air cooling chamber 103 disposed in the warm air cooling box body 130, and a battery cooling chamber 104 disposed in the battery cooling box body 140. The motor cooling box body 120, the warm air cooling box body 130, and the battery cooling box body 140 are integrally formed parts.

[0052] Further, the liquid injection chamber 101 is configured in a "T" shape and includes a first liquid injection section and a second liquid injection section that intersect with each other. The first liquid injection section is disposed between the motor cooling box 120, the warm air cooling box 130, and the battery cooling box 140. The second liquid injection section communicates with the first liquid injection section and is disposed between the warm air cooling box 130 and the battery cooling box 140.

[0053] Specifically, the upper part of the motor cooling box 120 and the upper part of the warm air cooling box 130, and the upper part of the motor cooling box 120 and the upper part of the battery cooling box 140 are spaced apart by the first liquid injection section. The upper part of the warm air cooling box 130 and the upper part of the battery cooling box 140 are spaced apart by the second liquid injection section.

[0054] In some embodiments of the present application, a communication hole communicating the liquid injection chamber 101 with the working chamber is provided on the liquid injection box 110. The water tank assembly 100 further includes: an operating mechanism 150 disposed at least partially in the liquid injection chamber 101, and a plug 152 is provided on the operating mechanism 150 to selectively block the communication hole. The size of the communication hole can be optimized to change the flow rate per unit time from the liquid injection chamber 101 to the working chamber.

[0055] Further, the operating mechanism 150 includes: a support rod assembly 153. One end of the support rod assembly 153 is connected to the plug 152 through a first compression spring 157. In the absence of external force, the first compression spring 157 can press the plug 152 against the wall surface of the liquid injection box 110 to block the corresponding communication hole.

[0056] One end of the transmission member is connected to the plug 152, and the other end of the transmission member extends out of the liquid injection chamber to facilitate applying a driving force to the transmission member. For example, by pulling the other end of the transmission member, a driving force can be provided to the plug 152 at one end of the transmission member, and the plug 152 overcomes the elastic force of the first compression spring 157 and thus moves away from the communication hole. Further, the coolant in the liquid injection chamber 101 can enter the working chamber.

[0057] Further, the transmission member includes: a first pull rod 151a, a transmission rack 151b and a transmission gear 151c that mesh with each other, and a cable 151d. The upper end of the first pull rod 151a extends out of the liquid injection chamber 101. The transmission rack 151b is fixedly connected to the first pull rod 151a. The transmission gear 151c is rotatably disposed on the support rod assembly 153 through a pivot shaft 151e. One end of the cable 151d is wound around the pivot shaft 151e, and the other end of the cable 151d is connected to the plug 152.

[0058] After the first pull rod 151a is pulled upward, the transmission rack 151b drives the transmission gear 151c to rotate, the transmission gear 151c drives the pivot shaft 151e to rotate, and then the one end of the cable 151d is wound around the pivot shaft 151e. The cable 151d is tightened and drives the plug 152 to move away from the communication hole, thus effectively avoiding the friction between the plug 152 and the side wall of the liquid injection box 110 when the entire operating mechanism 150 moves upward.

[0059] In some embodiments of the present application, a clamping portion for restricting the rotation of the transmission gear 151c is provided at the lower end of the transmission rack 151b. That is to say, when the first pull rod 151a moves upward, the transmission rack 151b will move upward with the first pull rod 151a. When the transmission rack 151b reaches the top dead center, the clamping portion can be engaged with the transmission gear 151c, so that the transmission gear 151c will not continue to rotate and the transmission rack 151b will not move upward away from the transmission gear 151c.

[0060] According to some embodiments of the present application, the transmission member further includes a second pull rod 154. The second pull rod 154 includes a rod body 154a and a convex portion 154b provided at the lower end of the rod body 154a. The support rod assembly 153 further includes: a vertical sleeve 153a. A through hole for the rod body 154a to pass through is provided on the top wall of the vertical sleeve 153a. The convex portion 154b is arranged inside the vertical sleeve 153a, and the size of the convex portion 154b is larger than the aperture of the through hole to abut against the top wall of the vertical sleeve 153a when the clamping portion is engaged with the transmission gear 151c.

[0061] The second pull rod 154 can be fixedly connected to the first pull rod 151a and move up and down or down together. The second pull rod 154 can not act on the vertical sleeve 153a when the transmission rack 151b on the first pull rod 151a moves relative to the transmission gear 151c. At this time, the rod body 154a and the through hole are in clearance fit; when the clamping portion is engaged with the transmission gear 151c, the plug 152 has completely disengaged from the communication hole, and the convex portion 154b abuts against the top wall of the vertical sleeve 153a, and the convex portion 154b will not disengage from the through hole. At this time, when the first pull rod 151a and the second pull rod 154 are pulled upward continuously, the entire operating mechanism 150 can be lifted, and then it is convenient to inject the coolant into the liquid injection chamber 101.

[0062] In some embodiments of the present application, a handle 155 is provided at the upper end of the first pull rod 151a. The water tank assembly 100 further includes: a box cover 160 for sealing the liquid injection chamber 101 and a plurality of working chambers. A guide groove 106 for the handle 155 to slide is provided on the box cover 160, and the upper end of the guide groove 106 is bent to form a limit groove 107 that can selectively cooperate with the handle 155 and restrict the downward movement of the first pull rod 151a.

[0063] When the clamping portion is clamped with the transmission gear 151c, the protrusion 154b stops against the top wall of the vertical sleeve 153a. At this time, the operating mechanism 150 is an integral structure, and the components therein will no longer move relative to each other. After the operating mechanism 150 reaches the top, the handle 155 can be moved to the limiting groove 107, so that the moving handle 155 is clamped with the limiting groove 107, so that the operating mechanism 150 is clamped on the box cover 160 as a whole, thereby facilitating the injection of coolant into the liquid injection chamber 101.

[0064] Specifically, a base 156 can be arranged between the handle 155 and the first pull rod 151a and the second pull rod 154. The base 156 is fixedly connected to the handle 155. The base 156 is provided with a first sliding groove and a second sliding groove. The upper ends of the first pull rod 151a and the second pull rod 154 can slide in the first sliding groove and the second sliding groove respectively, but will not be separated from the first sliding groove and the second sliding groove in the vertical direction. When the handle 155 needs to move toward the limiting groove 107, the handle 155 can be directly driven to drive the base 156 to slide relative to the first pull rod 151a and the second pull rod 154.

[0065] A second compression spring 158 is also sleeved on the second pull rod 154, one end of the second compression spring 158 abuts against the top wall of the vertical sleeve 153a, and the other end of the second compression spring 158 can abut against the box cover 160 and be compressed when the operating mechanism 150 moves upward as a whole.

[0066] The following is a brief description of the vehicle in the embodiment of the present application.

[0067] The vehicle according to the embodiment of the present application includes the above-mentioned water tank assembly 100. Since the above-mentioned water tank assembly 100 is provided according to the embodiment of the present application, the efficiency of injecting coolant into the vehicle when leaving the factory is improved, the labor cost of the workers is reduced, the work efficiency is improved, and the arrangement of parts in the vehicle is also easier.

[0068] The water tank assembly in the present application can be used in vehicles with multiple coolant circuits, such as pure electric vehicles, fuel cell vehicles, hybrid vehicles, etc. It has a wide range of applications and high promotion value.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A water tank assembly (100) for a vehicle, characterized in that, it includes: a plurality of working boxes, each of the working boxes is provided with a working chamber; a liquid injection box body (110), a liquid injection chamber (101) is arranged in the liquid injection box body (110), and the liquid injection chamber (101) is selectively communicated with the plurality of working chambers; wherein the liquid injection box body (110) and the plurality of working box bodies are integrally formed; the plurality of working box bodies are spaced apart from each other, and the liquid injection box body (110) is arranged between the plurality of working box bodies to separate at least part of the plurality of working box bodies; a communication hole communicating the liquid injection chamber (101) and the working chamber is arranged on the liquid injection box body (110); the water tank assembly (100) further includes: an operating mechanism (150) at least partially arranged in the liquid injection chamber (101), and a plug (152) for selectively blocking the communication hole is arranged on the operating mechanism (150); the operating mechanism (150) includes: a support rod assembly (153), one end of the support rod assembly (153) is connected with the plug (152) through a first compression spring (157); a transmission member, one end of the transmission member is connected with the plug (152), and the other end of the transmission member extends out of the liquid injection chamber (101); the highest point of the coolant in each working chamber is arranged at the bottom of the liquid injection chamber (101).

2. The water tank assembly (100) for a vehicle according to claim 1, characterized in that, each of the working box bodies includes: an upper box body and a lower box body arranged on the lower side of the upper box body, the plurality of upper box bodies are spaced apart from each other by the liquid injection box body (110), and a heat insulation air layer is arranged between two adjacent lower box bodies.

3. The water tank assembly (100) for a vehicle according to claim 1 or 2, characterized in that, the plurality of working box bodies include: a motor cooling box body (120), a warm air cooling box body (130) and a battery cooling box body (140), and the plurality of working chambers include: a motor cooling chamber (102) arranged in the motor cooling box body (120), a warm air cooling chamber (103) arranged in the warm air cooling box body (130), and a battery cooling chamber (104) arranged in the battery cooling box body (140).

4. The water tank assembly (100) for a vehicle according to claim 3, characterized in that, the liquid injection chamber (101) is configured as a "T" shape and includes a first liquid injection section and a second liquid injection section intersecting each other, the first liquid injection section is arranged between the motor cooling box body (120) and the warm air cooling box body (130) and the battery cooling box body (140), and the second liquid injection section is communicated with the first liquid injection section and is arranged between the warm air cooling box body (130) and the battery cooling box body (140).

5. The water tank assembly (100) for a vehicle according to claim 1, characterized in that, the transmission member includes: The first pull rod (151a), the upper end of the first pull rod (151a) extends out of the liquid injection chamber (101); The transmission rack (151b) and the transmission gear (151c) that engage with each other, the transmission rack (151b) is fixedly connected to the first pull rod (151a), and the transmission gear (151c) is rotatably arranged on the support rod assembly (153) through a pivot shaft (151e); The cable (151d), one end of the cable (151d) is rotatably arranged on the pivot shaft (151e), and the other end of the cable (151d) is connected to the plug (152).

6. The water tank assembly (100) for a vehicle according to claim 5, Characterized in that, The transmission member further includes: a second pull rod (154), the second pull rod (154) includes: a rod body (154a) and a convex portion (154b) provided at the lower end of the rod body (154a); The support rod assembly (153) further includes: a vertical sleeve (153a), a through hole for the rod body (154a) to pass through is provided on the top wall of the vertical sleeve (153a), the convex portion (154b) is arranged in the vertical sleeve (153a), and the size of the convex portion (154b) is larger than the aperture of the through hole.

7. The water tank assembly (100) for a vehicle according to claim 5, Characterized in that, A handle (155) is provided at the upper end of the first pull rod (151a); The water tank assembly (100) further includes: a tank cover (160) that seals the liquid injection chamber (101) and the plurality of working chambers, a guide groove (106) for the handle (155) to slide is provided on the tank cover (160), and the upper end of the guide groove (106) is bent to form a limit groove (107) that can selectively cooperate with the handle (155) and limit the downward movement of the first pull rod (151a).

8. A vehicle, Characterized in that, It includes the water tank assembly (100) according to any one of claims 1-7.

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