Expansion water tank assembly and vehicle

Abstract

The expansion water tank assembly according to the present invention is used for a vehicle. The expansion water tank assembly includes a housing and a first partition. A cavity is formed inside the housing; the first partition is arranged in the cavity and divides the cavity into a first chamber and a second chamber; wherein, a first filling port is formed on the cavity, and a liquid distribution cavity is formed on the first partition. The liquid distribution cavity is respectively communicated with the first filling port, the first chamber and the second chamber. By arranging the first partition to divide the cavity into the first chamber and the second chamber, the expansion water tank assembly according to the present invention can be used as a coolant accommodation cavity for at least two cooling circulation systems, thereby reducing the number of expansion water tanks required to be arranged in the vehicle engine compartment, further reducing the number of components, being beneficial to the lightweight of the vehicle, and at the same time reducing the assembly time and cost of the vehicle.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to an expansion water tank assembly and a vehicle. Background Art

[0002] The expansion water tank is an important part of the automobile engine cooling system. The automobile engine cooling system includes high, medium, and low temperature circulation systems, and each circulation system requires an expansion water tank.

[0003] In the related art, multiple expansion water tanks are provided in the engine compartment of the vehicle, and each expansion water tank acts on a cooling circulation system alone. Since the installation of the expansion water tank requires the cooperation of other components, the number of components to be arranged in the front engine compartment of the vehicle is large, and the vehicle assembly time is long and the weight is large. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the present invention is to provide an expansion water tank assembly. The expansion water tank assembly according to the present invention divides the cavity into a first chamber and a second chamber by providing a first partition. The first chamber and the second chamber serve as coolant receiving chambers and can act on at least two cooling circulation systems, thereby reducing the number of expansion water tanks to be provided in the vehicle engine compartment, further reducing the number of components, being beneficial to the lightweight of the vehicle, and at the same time reducing the vehicle assembly time and cost.

[0005] The present invention also provides a vehicle having the above-mentioned expansion water tank assembly.

[0006] The expansion water tank assembly according to the present invention includes: a housing, a cavity is formed inside the housing; a first partition, the partition is disposed inside the cavity and divides the cavity into a first chamber and a second chamber; wherein, a first filling port is formed on the cavity, a liquid separation cavity is formed on the first partition, and the liquid separation cavity is respectively communicated with the first filling port, the first chamber and the second chamber.

[0007] According to the expansion water tank assembly of the present invention, by providing a first partition board, the cavity formed by the outer shell is divided into a first chamber and a second chamber. The first chamber and the second chamber serve as coolant accommodation chambers and can act on at least two cooling circulation systems, thereby reducing the number of expansion water tanks to be provided in the vehicle engine compartment, further reducing the number of components, being beneficial to the lightweight of the vehicle, and at the same time reducing the assembly time and cost of the vehicle; the coolants accommodated in the first chamber and the second chamber of the expansion water tank assembly have different temperatures during operation. The first partition board separates the first chamber and the second chamber, and can reduce the heat transfer between the coolants in the first chamber and the second chamber; at the same time, the first filling port serves as the coolant filling port of the expansion water tank assembly. By communicating with the liquid distribution chamber, the liquid distribution chamber is respectively communicated with the first chamber and the second chamber. The coolant injected into the expansion water tank assembly through the first filling port flows into the first chamber and the second chamber respectively through the liquid distribution chamber, realizing the injection of coolant into two chambers through one filling port and simplifying the coolant filling process.

[0008] According to some embodiments of the present invention, a first through hole and a second through hole are formed on the first partition board. The first through hole communicates the liquid distribution chamber with the first chamber, and the second through hole communicates the liquid distribution chamber with the second chamber. The distances between the lower edges of the first through hole and the second through hole and the first filling port are the same respectively.

[0009] According to some embodiments of the present invention, the first filling port is arranged at the top of the outer shell, and the cross-sectional area of the liquid distribution chamber gradually decreases in the direction from the top of the outer shell to the bottom of the outer shell.

[0010] According to some embodiments of the present invention, a plurality of first support ribs are formed in the first chamber, and both ends of the first support ribs are respectively connected to the inner wall of the first chamber; a plurality of second support ribs are formed in the second chamber, and both ends of the second support ribs are respectively connected to the inner wall of the second chamber.

[0011] According to some embodiments of the present invention, communication holes penetrating in the thickness direction are respectively formed on the first support ribs and the second support ribs.

[0012] According to some embodiments of the present invention, the expansion water tank assembly further includes: a second partition board, which is arranged in the cavity and defines a third chamber between it and the inner wall of the cavity, and a second filling port communicating with the third chamber is formed on the outer shell.

[0013] According to some embodiments of the present invention, a plurality of third support ribs are formed in the third chamber, both ends of the third support members are respectively connected to the inner wall of the third chamber, and communication holes penetrating in the thickness direction are formed on the third support ribs.

[0014] According to some embodiments of the present invention, a heat insulation cavity is formed in at least one of the first partition plate and the second partition plate.

[0015] According to some embodiments of the present invention, the diameter of the first filling port is greater than or less than the diameter of the second filling port.

[0016] The vehicle according to the present invention will be briefly described below.

[0017] The vehicle according to the present invention includes the expansion water tank assembly described in any one of the above embodiments. Since the vehicle according to the present invention includes the expansion water tank assembly described in any one of the above embodiments, in the vehicle according to the present invention, the expansion water tank assembly can act on at least two cooling circulation systems, and the number of the expansion water tank and components in the engine compartment is small. Therefore, the assembly time of the vehicle is short, the manufacturing cost is low, the weight is small, and the coolant filling process is simple.

[0018] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, where:

[0020] Figure 1 is a cross-sectional view of the expansion water tank assembly according to the present invention;

[0021] Figure 2 is a cross-sectional view of the expansion water tank assembly from another perspective according to the present invention;

[0022] Figure 3 is a schematic diagram of the expansion water tank assembly according to the present invention;

[0023] Figure 4 is a front view of the expansion water tank assembly according to the present invention.

[0024] Reference Signs:

[0025] Expansion water tank assembly 1;

[0026] Outer shell 11;

[0027] First partition plate 12, liquid separation cavity 121, first through hole 1211, second through hole 1212;

[0028] First chamber 13, first support rib 131;

[0029] Second chamber 14, second support rib 141;

[0030] First filling port 15, second partition plate 16;

[0031] The third chamber 17, the third support rib 171;

[0032] The second filling port 18;

[0033] The communication hole 100. Specific embodiments

[0034] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where 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 by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0035] Reference is made below to Figures 1-4 Describe the expansion water tank assembly 1 according to an embodiment of the present invention.

[0036] As Figure 1 And Figure 2 Shown, the expansion water tank assembly 1 according to the present invention is used for a vehicle. The expansion water tank assembly 1 includes a housing 11 and a first partition 12. A cavity is formed in the housing 11; the first partition 12 is disposed in the cavity and divides the cavity into a first chamber 13 and a second chamber 14; wherein, a first filling port 15 is formed on the cavity, and a liquid separation cavity 121 is formed on the first partition 12. The liquid separation cavity 121 is respectively communicated with the first filling port 15, the first chamber 13 and the second chamber 14.

[0037] In the related art, the expansion water tank assembly of a vehicle generally consists of multiple expansion water tanks, and each expansion water tank acts independently on a cooling circulation system. Since the installation of the expansion water tank requires the cooperation of other components, the number of components to be arranged in the front engine compartment of the vehicle is large, and the vehicle assembly time is long and the weight is large.

[0038] To this end, the expansion water tank assembly 1 of the present application divides the cavity formed by the housing 11 into a first chamber 13 and a second chamber 14 by providing the first partition 12. The first chamber 13 and the second chamber 14 serve as coolant accommodation chambers and can act on at least two cooling circulation systems, thereby reducing the number of expansion water tanks to be provided in the vehicle engine compartment, further reducing the number of components, facilitating the lightweight of the vehicle, and at the same time reducing the vehicle assembly time and cost.

[0039] In addition, the coolant contained in the first chamber 13 and the second chamber 14 of the expansion water tank assembly 1 has different temperatures during operation. The first partition 12 separates the first chamber 13 and the second chamber 14, which can reduce the heat transfer of the coolant between the first chamber 13 and the second chamber 14. At the same time, the first filling port 15 serves as the coolant filling port of the expansion water tank assembly 1. By communicating with the liquid distribution chamber 121, the liquid distribution chamber 121 is respectively communicated with the first chamber 13 and the second chamber 14. The coolant injected into the expansion water tank assembly 1 through the first filling port 15 flows into the first chamber 13 and the second chamber 14 respectively through the liquid distribution chamber 121, realizing the injection of coolant into two chambers through one filling port and simplifying the coolant filling process.

[0040] Therefore, the expansion water tank assembly 1 according to the present invention can act on at least two cooling circulation systems, reduce the number of expansion water tanks required to be provided in the vehicle engine compartment, and thus reduce the number of components, which is beneficial to the lightweight of the vehicle. At the same time, the vehicle assembly time and cost are reduced, and the coolant filling process is simple.

[0041] According to some embodiments of the present invention, as Figure 1 shown, the first partition 12 is formed with a first through hole 1211 and a second through hole 1212. The first through hole 1211 communicates the liquid distribution chamber 121 with the first chamber 13, and the second through hole 1212 communicates the liquid distribution chamber 121 with the second chamber 14. The distances between the lower edges of the first through hole 1211 and the second through hole 1212 and the first filling port 15 are the same. The first through hole 1211 communicates the liquid distribution chamber 121 with the first chamber 13, and the coolant in the liquid distribution chamber 121 can flow into the first chamber 13 through the first through hole 1211. The second through hole 1212 communicates the liquid distribution chamber 121 with the second chamber 14, and the coolant in the liquid distribution chamber 121 can flow into the second chamber 14 through the second through hole 1212. The first through hole 1211 and the second through hole 1212 realize the communication between the liquid distribution chamber 121 and the first chamber 13 and the second chamber 14 respectively.

[0042] During coolant filling, the coolant is injected until the lower edges of the first through hole 1211 and the second through hole 1212 are submerged, and then the coolant in the liquid distribution chamber 121 is sucked back and exhausted, so that the liquid levels of the coolant in the first chamber 13 and the second chamber 14 are flush with the lower edges of the first through hole 1211 and the second through hole 1212 respectively. Therefore, the position of the lower edge of the first through hole 1211 is related to the liquid level height of the coolant filled into the first chamber 13, and the position of the lower edge of the second through hole 1212 is related to the liquid level height of the coolant filled into the second chamber 14.

[0043] In the related art, the coolant in the expansion water tank has a maximum liquid level limit. In the embodiments of the present application, by providing the first through hole 1211 and the second through hole 1212, the distances between the lower edges of the first through hole 1211 and the second through hole 1212 and the first filling port 15 are the same, and the liquid levels of the coolant filled into the first chamber 13 and the second chamber 14 are the same, so as to facilitate controlling the liquid levels of the coolant in the first chamber 13 and the second chamber 14 not to exceed the allowed maximum liquid level simultaneously.

[0044] In the related art, there are usually tolerances when the coolant filling machine evacuates the air, and it is impossible to completely evacuate the air in the cooling system. When the vehicle is running, the air in the cooling system will be discharged. In the embodiments of the present application, the expansion water tank assembly 1 can facilitate controlling the coolant in the first chamber 13 and the second chamber 14 at the same liquid level by providing the first through hole 1211 and the second through hole 1212. Therefore, when the air in the cooling system is discharged during the vehicle operation, the liquid levels of the coolant in the first chamber 13 and the second chamber 14 will drop and be respectively below the lower edges of the first through hole 1211 and the second through hole 1212, preventing the exchange of the coolant in the first chamber 13 and the second chamber 14.

[0045] According to some embodiments of the present invention, as Figure 1 and Figure 2 shown, the first filling port 15 is arranged at the top of the housing 11, and the cross-sectional area of the liquid separation chamber 121 gradually decreases from the top of the housing 11 to the bottom of the housing 11. Since the first filling port 15 is arranged at the top of the housing 11, the coolant injected through the first filling port 15 automatically flows into the first chamber 13 and the second chamber 14 under the action of the gravitational potential energy; at the same time, by configuring the liquid separation chamber 121 to have a gradually decreasing cross-sectional area from the top of the housing 11 to the bottom of the housing 11, the first through hole 1211 and the second through hole 1212 are open towards the top of the housing 11, which is beneficial to the coolant flowing into the first chamber 13 and the second chamber 14 through the first through hole 1211 and the second through hole 1212 respectively, and improves the inflow rate of the coolant flowing into the first chamber 13 and the second chamber 14 from the liquid separation chamber 121.

[0046] According to some embodiments of the present invention, as Figure 2As shown, a plurality of first support ribs 131 are formed in the first chamber 13, and both ends of the first support ribs 131 are respectively connected to the inner wall of the first chamber 13; a plurality of second support ribs 141 are formed in the second chamber 14, and both ends of the second support ribs 141 are respectively connected to the inner wall of the second chamber 14. Since both ends of the first support ribs 131 are respectively connected to the inner wall of the first chamber 13, the plurality of first support ribs 131 and the inner wall of the first chamber 13 cooperate to form a plurality of frameworks capable of resisting external forces, preventing the first chamber 13 from collapsing; since both ends of the second support ribs 141 are respectively connected to the inner wall of the second chamber 14, the plurality of second support ribs 141 and the inner wall of the second chamber 14 cooperate to form a plurality of frameworks capable of resisting external forces, preventing the second chamber 14 from collapsing; by providing the first support ribs 131 and the second support ribs 141, the first support ribs 131 and the second support ribs 141 can bear and transfer external forces, improving the stiffness of the expansion water tank assembly 1.

[0047] According to some embodiments of the present invention, as Figure 1 shown, communication holes 100 penetrating in the thickness direction are respectively formed on the first support ribs 131 and the second support ribs 141. The communication holes 100 are through holes for the coolant to flow through. The coolant in the first chamber 13 can pass through the communication holes 100 and flow along the thickness direction of the first support ribs 131, and the coolant in the second chamber 14 can pass through the communication holes 100 and flow along the thickness direction of the second support ribs 141. Therefore, the position of the communication holes 100 in the expansion water tank assembly 1 is related to the flow direction of the coolant in the first chamber 13 or the second chamber 14. By providing the communication holes 100 on the first support ribs 131 and the second support ribs 141, while the communication holes 100 allow the coolant to flow through, they control the flow direction of the coolant, ensuring sufficient heat transfer of the coolant in the first chamber 13 or the second chamber 14.

[0048] According to some embodiments of the present invention, as Figures 1-4As shown, the expansion water tank assembly 1 further includes a second partition 16. The second partition 16 is disposed in the cavity and defines a third chamber 17 between the second partition 16 and the inner wall of the cavity. A second filling port 18 communicating with the third chamber 17 is formed on the outer shell 11. The second partition 16 defines the third chamber 17 between the second partition 16 and the inner wall of the cavity. The expansion water tank assembly 1 has a first chamber 13, a second chamber 14 and a third chamber 17, which can act on three cooling circulation systems, thereby improving the integration of the expansion water tank assembly 1 and further reducing the number of components in the engine room. At the same time, by providing the second filling port 18 on the outer shell 11, the second filling port 18 communicates with the third chamber 17, and the coolant injected through the second filling port 18 flows into the third chamber 17 to realize filling the coolant into the third chamber 17. In the related art, there is a large temperature difference between the high-temperature circulation system and the medium- and low-temperature circulation systems. In the embodiments of the present application, the expansion water tank assembly 1 has a first chamber 13, a second chamber 14 and a third chamber 17. The third chamber 17 can be configured as a high-temperature chamber, the first chamber 13 and the second chamber 14 can be respectively configured as a low-temperature chamber and a medium-temperature chamber. At the same time, the high-temperature chamber is adjacent to the medium-temperature chamber, and the second partition 16 completely isolates the high-temperature chamber from the low-temperature chamber and the medium-temperature chamber. The high-temperature chamber is filled with coolant separately through the second filling port 18. Therefore, the heat transfer between the coolant in the high-temperature chamber and the medium-temperature chamber is reduced.

[0049] According to some embodiments of the present invention, as Figure 2 shown, a plurality of third support ribs 171 are formed in the third chamber 17. Both ends of the third support member are respectively connected to the inner wall of the third chamber 17. A communication hole 100 penetrating in the thickness direction is formed on the third support rib 171. Since both ends of the third support rib 171 are respectively connected to the inner wall of the third chamber 17, the plurality of third support ribs 171 and the inner wall of the third chamber 17 cooperate to form a plurality of frames capable of resisting external forces, avoiding the collapse of the third chamber 17. At the same time, the coolant in the third chamber 17 can flow through the communication hole 100 and along the thickness direction of the third support rib 171. The communication hole 100 controls the flow direction of the coolant while allowing the coolant to flow through, ensuring sufficient heat transfer of the coolant in the third chamber 17.

[0050] According to some embodiments of the present invention, a heat insulation chamber is formed in at least one of the first partition 12 and the second partition 16. The heat insulation chamber is filled with a vacuum or a substance with poor thermal conductivity. A heat insulation chamber is formed in the first partition 12, and the heat insulation chamber reduces the thermal conductivity of the first partition 12, thereby reducing the heat transfer between the coolant in the first chamber 13 and the second chamber 14. A heat insulation chamber is formed in the second partition 16, and the heat insulation chamber reduces the thermal conductivity of the second partition 16, thereby reducing the heat transfer between the coolant in the third chamber 17 and the adjacent chambers. Since a heat insulation chamber is formed in at least one of the first partition 12 and the second partition 16, the heat transfer of the coolant in the expansion water tank assembly 1 is reduced, and further the mutual influence between different circulation loops is reduced.

[0051] According to some embodiments of the present invention, the diameter of the first filling port 15 is greater than or less than the diameter of the second filling port 18. Since the first filling port 15 and the second filling port 18 have different diameters, it is convenient to distinguish between the first filling port 15 and the second filling port 18. When filling the coolant, the diameter of the coolant filling gun needs to match the diameter of the filling port. Therefore, it is possible to avoid repeatedly injecting the coolant into the same chamber.

[0052] In some embodiments, the diameter of the first filling port 15 is greater than the diameter of the second filling port 18. Since the first filling port 15 is connected to both the first chamber 13 and the second chamber 14, and the second filling port 18 is connected to the third chamber 17, in the expansion water tank assembly 1, the amount of coolant injected through the first filling port 15 is greater than the amount of coolant injected through the second filling port 18. By configuring the first filling port 15 and the second filling port 18 such that the diameter of the first filling port 15 is greater than the diameter of the second filling port 18, the rate of filling the coolant through the first filling port 15 is greater than the rate of filling the coolant through the second filling port 18.

[0053] In some embodiments, the expansion water tank assembly 1 further includes a first exhaust pipe joint, a first liquid replenishing pipe joint, a second exhaust pipe joint, a second liquid replenishing pipe joint, a third exhaust pipe joint, and a third liquid replenishing pipe joint; the first exhaust pipe joint, the second exhaust pipe joint, and the third exhaust pipe joint are disposed at the top of the housing 11, and the first liquid replenishing pipe joint, the second liquid replenishing pipe joint, and the third liquid replenishing pipe joint are disposed at the bottom of the housing 11; the first exhaust pipe joint and the first liquid replenishing pipe joint communicate the first chamber 13 with the outside, the second exhaust pipe joint and the second liquid replenishing pipe joint communicate the second chamber 14 with the outside, and the third exhaust pipe joint and the third liquid replenishing pipe joint communicate the third chamber 17 with the outside. The first exhaust pipe joint, the second exhaust pipe joint, and the third exhaust pipe joint are adapted to be correspondingly connected to the exhaust pipes of different circulation systems, and the vaporized coolant in the cooling system enters the corresponding chamber through the exhaust pipe, and the vaporized coolant liquefies in the chamber. The first liquid replenishing pipe joint, the second liquid replenishing pipe joint, and the third liquid replenishing pipe joint are adapted to be correspondingly connected to the liquid replenishing pipes of different circulation systems, and the coolant in the chamber replenishes the coolant for the corresponding cooling system through the liquid replenishing pipe.

[0054] The vehicle according to the present invention will be briefly described below.

[0055] The vehicle according to the present invention includes the expansion water tank assembly 1 in any one of the above embodiments. Since the vehicle according to the present invention includes the expansion water tank assembly 1 in any one of the above embodiments, in the vehicle according to the present invention, the expansion water tank assembly 1 can act on at least two cooling circulation systems, and the number of expansion water tanks and components in the engine compartment is small. Therefore, the assembly time of the vehicle is short, the manufacturing cost is low, the weight is small, and the coolant filling process is simple.

[0056] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0057] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0058] In the description of the present invention, the meaning of "a plurality of" is two or more.

[0059] In the description of the present invention, that the first feature is "above" or "below" the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but in contact through additional features therebetween.

[0060] In the description of the present invention, that the first feature is "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do 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.

[0062] Although the embodiments of the present invention 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 invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An expansion kettle assembly, characterized in that, comprising: a housing (11), a cavity being formed inside the housing (11); a first partition (12), the partition being disposed inside the cavity and separating the cavity into a first chamber (13) and a second chamber (14); wherein, a first filling port (15) is formed on the cavity, a liquid separation cavity (121) is formed on the first partition (12), and the liquid separation cavity (121) is respectively communicated with the first filling port (15), the first chamber (13) and the second chamber (14); a second partition (16), the second partition (16) being disposed inside the cavity and defining a third chamber (17) between the second partition (16) and the inner wall of the cavity, and a second filling port (18) communicated with the third chamber (17) being formed on the housing (11); at least one of the first partition (12) and the second partition (16) is formed with a heat insulation cavity; the diameter of the first filling port (15) is greater than or less than the diameter of the second filling port (18).

2. The expansion kettle assembly according to claim 1, characterized in that, a first through hole (1211) and a second through hole (1212) are formed on the first partition (12), the first through hole (1211) communicates the liquid separation cavity (121) with the first chamber (13), the second through hole (1212) communicates the liquid separation cavity (121) with the second chamber (14), and the distances between the lower edges of the first through hole (1211) and the second through hole (1212) and the first filling port (15) are the same respectively.

3. The expansion kettle assembly according to claim 2, characterized in that, the first filling port (15) is disposed at the top of the housing (11), and the cross-sectional area of the liquid separation cavity (121) gradually decreases in the direction from the top of the housing (11) to the bottom of the housing (11).

4. The expansion kettle assembly according to claim 3, characterized in that, a plurality of first support ribs (131) are formed inside the first chamber (13), and both ends of the first support ribs (131) are respectively connected to the inner wall of the first chamber (13); a plurality of second support ribs (141) are formed inside the second chamber (14), and both ends of the second support ribs (141) are respectively connected to the inner wall of the second chamber (14).

5. The expansion kettle assembly according to claim 4, characterized in that, communication holes (100) penetrating in the thickness direction are respectively formed on the first support ribs (131) and the second support ribs (141).

6. The expansion kettle assembly according to claim 1, characterized in that, a plurality of third support ribs (171) are formed inside the third chamber (17), both ends of the third support ribs are respectively connected to the inner wall of the third chamber (17), and a communication hole (100) penetrating in the thickness direction is formed on the third support ribs (171).

7. A vehicle, characterized in that, comprising the expansion kettle assembly (1) according to any one of claims 1-6.

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