Vehicle

Abstract

The utility model provides a vehicle. The vehicle comprises a vehicle body, a front wall plate, a drainage groove and an expansion water tank. The dash panel and the vehicle body are connected and define a cabin of the vehicle. The drainage groove extends in the first direction and is formed in the side, facing the cabin, of the dash panel. The expansion water tank is arranged in the cabin. The expansion water tank is connected to the side, away from the front wall plate, of the drainage groove and arranged in the middle in the first direction. According to the vehicle, an existing structure of the vehicle is ingeniously utilized, the installation position of the expansion water tank is moved to the position closer to the vehicle head, and the expansion water tank is arranged in the middle in the first direction. Therefore, when a driver and passengers need to open to fill cooling liquid, the driver and passengers can make contact with the expansion water tank more easily, the convenience of filling the cooling liquid is effectively improved, meanwhile, the firmness degree of the expansion water tank after installation and the connection stability are effectively improved, the situation that interference is generated between the expansion water tank and other parts is avoided, and the service life of the expansion water tank is prolonged. And the overall safety of the vehicle is ensured.

Description

Technical Field

[0001] The present application relates to the field of vehicles. Background Art

[0002] The expansion tank is an integral part of a vehicle's cooling system. It exhausts gases from the cooling system while simultaneously replenishing coolant. This increases the pressure in the cooling system, which in turn increases the water pump pressure, thereby preventing damage caused by water pump cavitation. Most vehicles currently on the market have expansion tanks located on either side of the engine compartment, near the hood. However, since hoods are generally large, and some vehicles lack a gas spring opening mechanism, opening the hood and adding coolant to the expansion tank can be laborious and inconvenient. Utility Model Content

[0003] The present application provides a vehicle to solve some or all of the deficiencies in the related art.

[0004] The present application provides a vehicle comprising: a vehicle body, a dash panel, a drain trough, and an expansion tank. The dash panel is connected to the vehicle body and encloses an engine compartment of the vehicle. The drain trough extends along a first direction and is disposed on a side of the dash panel facing the engine compartment. The expansion tank is disposed within the engine compartment. The expansion tank is connected to a side of the drain trough facing away from the dash panel and is centrally located along the first direction.

[0005] Optionally, the expansion water tank includes a mounting surface disposed toward the dash panel and a mounting portion disposed on the mounting surface, wherein the mounting portion is connected to the dash panel.

[0006] Optionally, the vehicle further comprises a drainage trough extending in a first direction. The drainage trough comprises a first side wall and a second side wall disposed opposite to each other. The expansion tank is connected to the first side wall. The second side wall is connected to the front panel.

[0007] Optionally, the drain trough further includes a bottom wall and a connecting portion. One end of the connecting portion is disposed on a side of the bottom wall away from the first and second side walls, and the other end extends toward the expansion tank. The expansion tank includes a mounting surface disposed toward the dash panel and a mounting portion disposed on the mounting surface.

[0008] Wherein, the mounting portion is connected to the first side wall; and / or the mounting portion is cooperatively connected to the connecting portion.

[0009] Optionally, the vehicle further includes a hatch covering the engine compartment. The hatch includes a detachably connected upper hatch and a lower hatch. The upper hatch is pivotally connected to the vehicle body on a side proximal to the dash panel. The lower hatch is detachably connected to the vehicle body on a side distal to the dash panel.

[0010] Optionally, the expansion water tank includes a filling surface arranged obliquely to the direction of gravity and a filling port arranged on the filling surface, wherein the filling port is arranged toward the upper cover.

[0011] Optionally, the expansion water tank includes a tank body, a partition, and a filling port. The tank body includes an upper tank portion and a lower tank portion. The upper tank portion and the lower tank portion enclose a fluid cavity of the tank body. The upper tank portion includes a filling surface arranged obliquely with respect to the direction of gravity. The partition is provided in the fluid cavity to separate the fluid cavity into a first cavity and a second cavity. The first cavity and the second cavity are arranged horizontally. The filling port is provided on the filling surface. The filling port includes a first filling port communicating with the first cavity and a second filling port communicating with the second cavity.

[0012] Optionally, the upper box portion includes an upper surface and a front surface. The upper surface is disposed away from the lower box portion. The filling surface is connected to the upper surface on a side away from the lower box portion and connected to the front surface on a side close to the lower box portion.

[0013] Optionally, the expansion water tank includes a degassing channel provided in the upper tank portion and a liquid outlet channel provided in the lower tank portion. The degassing channel includes a first degassing channel communicating with the first cavity and a second degassing channel communicating with the second cavity. The liquid outlet channel includes a first liquid outlet channel communicating with the first cavity and a second liquid outlet channel communicating with the second cavity.

[0014] Optionally, in the direction of gravity, the expansion water tank and the drainage trough are arranged at the top end of the front panel.

[0015] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0016] As can be seen from the above embodiments, the vehicle of the present application is provided with a drainage trough extending along a first direction on the dash panel, and the expansion tank is centrally located on the drainage trough along the first direction. This arrangement cleverly utilizes the vehicle's existing structure, moving the expansion tank's installation location closer to the front of the vehicle and locating it centrally along the first direction. This makes it easier for drivers and passengers to access the expansion tank when they need to refill coolant, effectively improving the convenience of refilling coolant. It also effectively improves the secure installation and connection stability of the expansion tank after installation, avoiding interference between the expansion tank and other components and ensuring the overall safety of the vehicle.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a side view of a partial structure of a vehicle in one embodiment of the present application.

[0020] Figure 2 This is a schematic diagram of an expansion tank installed on a front panel in one embodiment of the present application.

[0021] Figure 3 This is a front view of a partial structure of a vehicle in one embodiment of the present application.

[0022] Figure 4 This is a schematic diagram of an overall exploded front view of an expansion water tank in one embodiment of the present application.

[0023] Figure 5 for Figure 4 The schematic diagram of the overall exploded top view of the expansion tank is shown.

[0024] Figure 6 for Figure 4 The diagram shows an overall exploded right side view of the expansion tank.

[0025] Description of reference numerals:

[0026] Vehicle 1, vehicle body 10, engine compartment 11, dash panel 12, expansion tank 13, tank body 131, filling surface 131a, mounting surface 131b, upper tank portion 1311, upper surface 1311a, front surface 1311b, lower tank portion 1312, fluid chamber 1313, first chamber 1313a, second chamber 1313b, filling port 132, first injection port 132a, second injection port 132b, mounting portion 133, partition 134, degassing channel 135, first degassing channel 135a, second degassing channel 135b, liquid outlet channel 136, first liquid outlet channel 136a, second liquid outlet channel 136b, upper hood 14, lower hood 15, drain groove 16, first side wall 161, second side wall 162, bottom wall 163, connecting portion 164, first direction X, gravity direction Z. DETAILED DESCRIPTION

[0027] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0028] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0029] like Figures 1 to 6 As shown, the present application provides a vehicle 1, comprising: a vehicle body 10, a front panel 12, an expansion tank 13 and a drainage tank 16. Figure 1 As shown, the dash panel 12 is connected to the vehicle body and encloses the engine compartment 11 of the vehicle 1. A drainage trough 16 extends along a first direction X (i.e., the width of the dash panel 12) and is located on the side of the dash panel 12 facing the engine compartment 11. An expansion tank 13 is disposed within the engine compartment 11. The expansion tank 13 is connected to the side of the drainage trough 16 facing away from the dash panel 12 and is centrally located along the first direction X.

[0030] The vehicle 1 of the present application is provided with a drainage groove 16 extending along a first direction X on the front panel 12, and the expansion tank 13 is centrally located on the drainage groove 16 along the first direction X. This arrangement cleverly utilizes the existing structure of the vehicle 1, moving the installation position of the expansion tank 13 closer to the front of the vehicle and locating it centrally along the first direction X. This makes it easier for drivers and passengers to access the expansion tank 13 when they need to open it to refill coolant, effectively improving the convenience of refilling coolant. It also effectively improves the secureness of the expansion tank 13 after installation and the stability of the connection, avoiding interference between the expansion tank 13 and other components, and ensuring the overall safety of the vehicle 1.

[0031] In addition, combined Figures 1 to 3 As shown, in the first direction X, the expansion tank 13 is centrally located in the drain groove 16 . In the gravity direction Z (ie, the height direction of the dash panel 12 ), the expansion tank 13 and the drain groove 16 are located at the top of the dash panel 12 .

[0032] It can be seen that the position setting of the expansion water tank 13 allows the driver and passengers to see and touch the expansion water tank 13 more intuitively, and then perform operations such as adding coolant, observing the liquid level, disassembly and maintenance, etc., and effectively utilizes the space of the engine compartment 11, making the remaining accommodation space of the engine compartment 11 wider and more symmetrical, which is convenient for installing other components of the vehicle 1, and also ensures the weight balance on the left and right sides of the vehicle 1 in the first direction X, further improving the stability and safety of the vehicle 1, and effectively improving the service life of the vehicle 1.

[0033] In addition, since the expansion tank 13 and the drain trough 16 of the vehicle 1 are installed near the top of the cabin 11, this arrangement places the expansion tank 13 at the high point of the liquid level of the vehicle 1, thereby providing a greater water pressure for the cooling system of the vehicle 1, thereby enabling the cooling system of the vehicle 1 to have the advantages of high performance and high efficiency.

[0034] It can be seen that the structural arrangement of the expansion water tank 13 of the vehicle 1 of the present application effectively improves the convenience for the driver and passengers in performing operations such as adding coolant and observing the liquid level, while also ensuring the stability of the expansion water tank 13 after connection, ensuring the high efficiency and high performance of the cooling system of the vehicle 1 and the overall safety of the vehicle 1.

[0035] Of course, in optional embodiments, the positions of the expansion tank 13 and the drain trough 16 on the front panel 12 can be adjusted based on the actual layout of the engine compartment 11 and the special requirements of the driver and passengers. For example, the expansion tank 13 can be arranged on the side of the front panel 12 to facilitate refilling from the side of the vehicle 1, or the expansion tank 13 can be positioned downward in the gravity direction Z to make the layout of components in the engine compartment more integrated, etc. Therefore, this application does not impose any restrictions on this.

[0036] The vehicle 1 also includes a hatch covering the engine compartment 11. Figure 1 and Figure 3 As shown, in an optional embodiment, the hatch includes a detachably connected upper hood 14 and a lower hood 15. The upper hood 14 is pivotally connected to the vehicle body at a side close to the front panel 12. The lower hood 15 is detachably connected to a side of the vehicle body away from the front panel 12.

[0037] Combine Figure 1 and Figure 3 It can be seen that the vehicle 1 of the present application sets the hatch of the engine compartment 11 as an upper engine compartment 14 and a lower engine compartment 15 respectively. In actual use, the driver and passengers only need to disconnect the mutual connection between the upper engine compartment 14 and the lower engine compartment 15 to open the upper engine compartment 14 along its pivotal connection position, so as to observe, repair and other operations on the engine compartment 11. Such a structural setting effectively optimizes the process of opening the hatch of the engine compartment 11 by the driver and passengers, reducing manpower. At the same time, Figure 3 As can be seen, the installation position of the expansion tank 13 and the arrangement of the upper hood 14 place the expansion tank 13 directly in the engine compartment 11, facing the upper hood 14. This allows the driver and passengers to open the upper hood 14 and directly perform operations such as adding coolant to the expansion tank 13 and checking the liquid level without having to open the entire engine compartment 11. Furthermore, the arrangement of the upper hood 14 and lower hood 15 also shortens the front of the vehicle 1, improving the space utilization of the engine compartment 11. When filling the expansion tank 13, the driver and passengers no longer need to lean into the engine compartment 11 to complete the filling, effectively improving their safety. Thus, the location of the expansion tank 13 and the arrangement of the upper hood 14 and lower hood 15 make the overall layout of the vehicle 1 ingenious and compact, effectively improving the convenience of the driver and passengers when adding coolant, while also ensuring safety during operation.

[0038] like Figure 3 As shown, in an optional embodiment, the expansion water tank 13 includes a filling surface 131 a arranged obliquely to the gravity direction Z and a filling port 132 arranged on the filling surface 131 a. The filling port 132 is arranged toward the upper cover 14.

[0039] like Figure 1The structure of the upper hood 14 of the vehicle 1 is shown in the closed state. Figure 3 FIG. 1 is a schematic diagram showing the structure of the vehicle 1 with the upper hood 14 opened. Figure 1 and Figure 3 It can be seen that the filling port 132 of the expansion tank 13 is arranged toward the position of the upper cover 14, so that after the driver and passengers open the upper cover 14, the filling port 132 is tilted toward the driver and passengers, thereby further improving the convenience of operations such as adding coolant and observing the liquid level. Figure 1 As can be seen from the figure, the installation position of the expansion tank 13 is ingenious, which effectively utilizes the installation space of the cabin 11. While ensuring that the expansion tank 13 is at the high point of the liquid level, it also reserves sufficient accommodation space for the cabin 11.

[0040] Combine Figure 2 and Figure 6 In an optional embodiment, the expansion tank 13 includes a mounting surface 131 b disposed toward the dash panel 12 and a mounting portion 133 disposed on the mounting surface 131 b. The mounting portion 133 is connected to the dash panel 12.

[0041] The expansion tank 13 is connected to the dash panel 12 via a mounting portion 133, which prevents the main structure of the expansion tank 13 from contacting the dash panel 12. This effectively prevents interference with the structure, vibration, and temperature of the dash panel 12, thereby improving the safety of the expansion tank 13. Furthermore, the mounting portion 133 provides a more stable and secure connection to the expansion tank 13, further ensuring its safety.

[0042] like Figures 1 to 3 As shown, in an optional embodiment, the drain groove 16 includes a first side wall 161 and a second side wall 162 that are oppositely disposed. The expansion tank 13 is connected to the first side wall 161. The second side wall 162 is connected to the front panel 12.

[0043] When the engine compartment 11 of the vehicle 1 is rainy or when washing the car, some rainwater, foam, etc. may flow into the engine compartment 11 through the gaps in the engine cover. The drainage groove 16 extending along the first direction X allows the rainwater and foam flowing into the engine compartment 11 to flow to both sides along the drainage groove 16 and then be discharged from the engine compartment 11 from the sides, effectively preventing the rainwater from entering the engine compartment 11 from affecting the components in the engine compartment 11. At the same time, since the drainage groove 16 is installed on the front panel 12 through the second side wall 162, and the expansion tank 13 is installed on the first side wall 161 of the drainage groove 16, this structural arrangement further makes the installation position of the expansion tank 13 closer to the upper engine cover 14, thereby further improving the convenience of adding coolant and observing the liquid level. At the same time, referring to Figure 1The expansion water tank 13 is installed in the cabin 11 using the structure of the drainage groove 16. Its installation position is unique and is not easily affected by other components, which effectively improves the space utilization of the cabin 11.

[0044] like Figure 2 As shown, in an optional embodiment, the drain channel 16 further includes a bottom wall 163 and a connecting portion 164. The connecting portion 164 is mounted on a side of the bottom wall 163 away from the first side wall 161 and the second side wall 162. One end of the connecting portion 164 is connected to the bottom wall 163, and the other end extends toward the expansion tank 13. The expansion tank 13 includes a mounting surface 131b disposed toward the dash panel 12 and three mounting portions 133 disposed on the mounting surface 131b.

[0045] One of the mounting portions 133 is directly connected to the first side wall 161 , and the other two mounting portions 133 are respectively connected to the two connecting portions 164 .

[0046] The mounting portion 133 on the top of the expansion tank 13 is directly connected to the first side wall 161, while the mounting portion 133 on the side of the expansion tank 13 is connected to the extended connecting portion 164. This connection method ensures the connection strength of the expansion tank 13 and improves the stability and safety of the expansion tank 13. Figure 2 and Figure 3 As shown, because a portion of the mounting surface 131b of the expansion tank 13 is curved, and the first sidewall 161 of the drain trough 16 is inclined, this connection method of the expansion tank 13 allows for a closer fit between the expansion tank 13 and the drain trough 16, improving space utilization and placing the expansion tank 13 closer to the upper cover 14, further enhancing refilling convenience. Furthermore, this connection method effectively prevents interference between the expansion tank 13 and other components, ensuring the safety of the expansion tank 13.

[0047] Of course, in optional embodiments, the connection method between the expansion tank 13, the front panel 12, and the drain chute 16 can be configured accordingly based on the actual layout of the vehicle 1 and the special requirements of the driver and passengers. For example, multiple hanging components can be provided on the top of the expansion tank 13 to hang the expansion tank 13 on the bottom wall 163 of the drain chute 16. Alternatively, a chute can be provided on the first side wall 161, and a clamp can be provided on the mounting surface 131b of the expansion tank 13. The expansion tank 13 can be mounted on the first side wall 161 through the mating connection between the clamp and the chute, etc. Therefore, this application does not limit the connection method of the expansion tank 13 within the cabin 11.

[0048] like Figures 4 to 6As shown, in an optional embodiment, the expansion tank 13 includes a tank body 131, a partition 134, and a filling port 132. The tank body 131 includes an upper tank portion 1311 and a lower tank portion 1312. The upper tank portion 1311 and the lower tank portion 1312 enclose a fluid chamber 1313 of the tank body 131. The upper tank portion 1311 includes a filling surface 131a, which is arranged obliquely with respect to the direction of gravity. The partition 134 is provided in the fluid chamber 1313 to separate the fluid chamber 1313 into a first chamber 1313a and a second chamber 1313b. The first chamber 1313a and the second chamber 1313b are arranged along a first direction X. The filling port 132 is provided on the filling surface 131a. The filling port 132 includes a first filling port 132a communicating with the first chamber 1313a and a second filling port 132b communicating with the second chamber 1313b.

[0049] When assembled in a cooling system (not shown), the first cavity 1313a and the second cavity 1313b of the expansion water tank 13 allow for a variety of connection relationships between the expansion water tank 13 and multiple circuits, such as a separate connection between the first cavity 1313a and the motor circuit, a separate connection between the second cavity 1313b and the battery circuit, or a fluid entering the fluid cavity 1313 from a single pipeline and then separating from the first cavity 1313a and the second cavity 1313b, etc. It can be seen that the expansion water tank 13 of the present application is provided with a partition 134, which enables the expansion water tank 13 to adapt to cooling systems with different circuit connection requirements, integrates multiple circuits into one expansion water tank 13, and improves the integration of the expansion water tank 13. The provision of the first injection port 132a and the second injection port 132b also allows fluid to enter the fluid cavity 1313 from multiple locations to achieve fluid replenishment.

[0050] like Figure 6 As shown, in an optional embodiment, the upper box portion 1311 includes an upper surface 1311a and a front surface 1311b. The upper surface 1311a is arranged away from the lower box portion 1312. In some embodiments, the side of the filling surface 131a away from the lower box portion 1312 is connected to the upper surface 1311a, and the side close to the lower box portion 1312 is connected to the front surface 1311b. The arrangement of this embodiment allows the filling surface 131a to be tilted as much as possible, and the filling surface 131a can be exposed as much as possible when the upper cover 14 is opened. The inclination angle of the filling surface 131a can be set according to actual needs, for example, it can be set to an angle of 30 degrees, 45 degrees, 60 degrees, 80 degrees, etc. with the gravity direction Z, and this application is not limited thereto.

[0051] Of course, in other embodiments, the filling surface 131a and the upper surface 1311a may be provided with other plane or curved structures as a avoidance, or other surfaces may be provided between the filling surface 131a and the front surface 1311b, and this application is not limited to this.

[0052] like Figures 4 to 6 As shown, in an optional embodiment, the expansion tank 13 includes a degassing channel 135 provided in the upper tank portion 1311 and a liquid outlet channel 136 provided in the lower tank portion 1312. When the fluid in the cooling system flows into the expansion tank 13, it enters the fluid chamber 1313 through the degassing channel 135. Under the action of gravity, the liquid portion of the fluid moves downward and leaves the fluid chamber 1313 through the liquid outlet channel 136, while the gas portion remains in the fluid chamber 1313. In this way, gas-liquid separation is achieved.

[0053] Combine Figure 4 and Figure 5 In some embodiments, the degassing channel 135 includes a first degassing channel 135a communicating with the first cavity 1313a and a second degassing channel 135b communicating with the second cavity 1313b. The liquid outlet channel 136 includes a first liquid outlet channel 136a communicating with the first cavity 1313a and a second liquid outlet channel 136b communicating with the second cavity 1313b. In other words, the first cavity 1313a and the second cavity 1313b are each provided with a separate fluid inlet channel and a fluid outlet channel. This allows the first cavity 1313a and the second cavity 1313b to be completely isolated by the partition 134, preventing the fluids in the first cavity 1313a and the second cavity 1313b from mixing. This arrangement allows the expansion tank 13 to be connected to two independent fluid circuits, preventing the liquids in the different fluid circuits from exchanging heat within the expansion tank 13 due to temperature differences, which could reduce the cooling or heating effect. It can be seen that the provision of the partition 134 improves the functional integration of the expansion tank 13. The overall structural volume of the cooling system of the vehicle 1 of the present application can also be optimized.

[0054] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A vehicle, characterized in that: include: body; a cowl connected to the vehicle body and enclosing an engine room of the vehicle; a drainage groove extending in a first direction and provided on a side of the front panel facing the cabin; as well as An expansion water tank is arranged in the cabin; wherein the expansion water tank is connected to a side of the drainage trough away from the front panel and is centrally arranged along the first direction.

2. The vehicle according to claim 1, wherein: The expansion water tank includes a mounting surface disposed toward the dash panel and a mounting portion disposed on the mounting surface; the mounting portion is connected to the drain groove.

3. The vehicle according to claim 1, wherein: The drainage trough includes a first side wall and a second side wall that are oppositely arranged; the expansion water tank is connected to the first side wall; and the second side wall is connected to the front panel.

4. The vehicle according to claim 3, wherein: The drainage trough further includes a bottom wall and a connecting portion; one end of the connecting portion is disposed on a side of the bottom wall away from the first side wall and the second side wall, and the other end extends toward the expansion tank; the expansion tank includes a mounting surface disposed toward the dash panel and a mounting portion disposed on the mounting surface; Wherein, the mounting portion is connected to the first side wall; and / or, the mounting portion is cooperatively connected to the connecting portion.

5. The vehicle according to claim 1, wherein: The vehicle also includes a hatch covering the cabin; the hatch includes a detachably connected upper hatch and a lower hatch; wherein the upper hatch is pivotally connected to the vehicle body at a side close to the front panel; and the lower hatch is detachably connected to a side of the vehicle body away from the front panel.

6. The vehicle according to claim 5, wherein: The expansion water tank includes a filling surface arranged obliquely to the direction of gravity and a filling port arranged on the filling surface; the filling port is arranged toward the upper cover.

7. The vehicle according to claim 1, wherein: The expansion water tank includes a tank body, a partition and a filling port; wherein the tank body includes an upper tank portion and a lower tank portion; the upper tank portion and the lower tank portion enclose a fluid cavity of the tank body; the upper tank portion includes a filling surface arranged obliquely to the direction of gravity; the partition is arranged on the fluid cavity to separate the fluid cavity into a first cavity and a second cavity; the first cavity and the second cavity are distributed in the horizontal direction; the filling port is arranged on the filling surface; the filling port includes a first filling port connected to the first cavity and a second filling port connected to the second cavity.

8. The vehicle according to claim 7, wherein: The upper box portion includes an upper surface and a front surface; the upper surface is arranged away from the lower box portion; the side of the filling surface away from the lower box portion is connected to the upper surface, and the side close to the lower box portion is connected to the front surface.

9. The vehicle according to claim 7, wherein: The expansion water tank includes a degassing channel arranged in the upper tank part and a liquid outlet channel arranged in the lower tank part; the degassing channel includes a first degassing channel connected to the first cavity and a second degassing channel connected to the second cavity; the liquid outlet channel includes a first liquid outlet channel connected to the first cavity and a second liquid outlet channel connected to the second cavity.

10. The vehicle according to any one of claims 1 to 9, characterized in that In the direction of gravity, the expansion water tank and the drainage groove are arranged at the top end of the front panel.

Images