Expansion kettle, cooling system with expansion kettle and vehicle
By installing a pressure plate and providing through holes in the cooling chamber of the vehicle expansion kettle, the problem of liquid surface rushing is solved, improving the stability of use and reducing noise.
Patent Information
- Application Number
- CN202421536392.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the vehicle thermal management integrated module, the liquid level of the expansion kettle is prone to swelling, which will affect normal use.
By providing a pressure plate on the cooling chamber of the expansion kettle, the pressure plate covering the cooling chamber and partitioning from the hollow chamber, the pressure plate is provided with through holes for liquid circulation and exhaust gas.
It effectively reduces the liquid surface churning phenomenon and reduces working noise. The structure and manufacturing process of the pressure plate are relatively simple, reducing the transformation of the expansion kettle structure.
Smart Images
Figure CN222558623U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to an expansion kettle and a cooling system and a vehicle having the same. Background Art
[0002] The expansion kettle of the vehicle's thermal management integrated module can simultaneously replenish coolant for the vehicle's battery circuit, motor circuit, heater circuit and other cooling circuits. Taking new energy vehicles as an example, due to the different heating methods of new energy vehicles and traditional fuel vehicles, new energy vehicles have more stringent functional requirements for the thermal management integrated module. The core of the thermal management integrated module is to use a multi-way valve to realize the circulation direction of hot and cold water under a variety of different working conditions, thereby realizing a variety of cooling and heating modes; due to the existence of multiple coolant circuits, the expansion kettle of the thermal management integrated module has multiple water replenishment situations when it is working. When there is a pressure inconsistency between different cooling circuits, the liquid level of the expansion kettle will surge, affecting the normal use of the expansion kettle. Utility Model Content
[0003] The purpose of the present application is to at least solve the technical problem that the liquid level of the existing expansion kettle will surge, and this purpose is achieved through the following technical solutions:
[0004] A first aspect of the present application provides an expansion kettle for a vehicle, wherein a plurality of cooling chambers are arranged at the bottom of the expansion kettle, a hollow chamber is arranged at the top of the expansion kettle, the expansion kettle is connected to a plurality of cooling circuits of the vehicle through the plurality of cooling chambers, the expansion kettle further comprises: at least one pressure plate, the at least one pressure plate covers at least one cooling chamber and separates the cooling chamber from the hollow chamber, the pressure plate is provided with a through hole connecting the cooling chamber and the hollow chamber.
[0005] In some embodiments, the plurality of cooling chambers include a battery circuit chamber, a motor circuit chamber, and a warm air circuit chamber, and the at least one pressure plate includes a battery circuit pressure plate covering the battery circuit chamber.
[0006] In some embodiments, the expansion kettle is provided with a fluid infusion port, the battery circuit chamber includes a fluid infusion channel connected to the fluid infusion port, and the battery circuit pressure plate covers the fluid infusion channel.
[0007] In some embodiments, the refilling channel is distributed at the edge of the expansion kettle and along the length of the expansion kettle, the battery circuit pressure plate is configured as a long strip consistent with the shape of the refilling channel, and the through holes are distributed at a position of the battery circuit pressure plate away from the refilling port.
[0008] In some embodiments, the rehydration channel is provided with a plurality of partitions spaced apart along the length of the expansion kettle, the plurality of partitions divide the rehydration channel into a plurality of sub-chambers, and the battery circuit pressure plate is mounted on top of the plurality of partitions and covers the plurality of sub-chambers.
[0009] In some embodiments, a first connecting channel distributed along the width direction of the expansion kettle is provided between the infusion channel and the infusion port, and the battery circuit pressure plate is also provided with a first connecting plate covering the first connecting channel and connected to the long strip plate.
[0010] In some embodiments, a second connecting channel distributed along the width direction of the expansion kettle is provided between the liquid replenishment channel and the warm air circuit chamber, and the battery circuit pressure plate is also provided with a second connecting plate covering the second connecting channel and connected to the long strip plate.
[0011] In some embodiments, the expansion kettle includes a lower kettle body and an upper kettle body covered to the lower kettle body, multiple cooling chambers are formed in the lower kettle body, a hollow chamber is formed in the upper kettle body, and at least one pressure plate is covered to the lower kettle body.
[0012] A second aspect of the present application provides a cooling system, comprising a plurality of components to be cooled and an expansion kettle as described in the first aspect of the present application, wherein the expansion kettle is connected to the plurality of components to be cooled through a plurality of cooling chambers.
[0013] A third aspect of the present application provides a vehicle, comprising the cooling system according to the second aspect of the present application.
[0014] The expansion kettle provided in the embodiment of the present application has a pressure plate arranged on the cooling chamber, so that the pressure plate can reduce the phenomenon of liquid surface churning when the expansion kettle is working. The cooling chamber can also circulate liquid and exhaust gas through the through holes to reduce the working noise of the expansion kettle. Moreover, the structure and manufacturing process of the pressure plate are relatively simple, which can reduce the structural modification of the expansion kettle.
[0015] Specifically, the hollow through holes opened on the pressure plate can allow the steam and boiling liquid in the cooling chamber to pass through. When the expansion kettle is working, the steam and boiling liquid in the cooling chamber can be discharged through the through holes on the pressure plate, which can effectively reduce the liquid level churning phenomenon in the cooling chamber of the expansion kettle caused by steam and boiling liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 This is a schematic structural diagram of an expansion kettle according to an embodiment of the present application;
[0018] Figure 2 for Figure 1The schematic diagram of the split structure of the expansion kettle shown;
[0019] Figure 3 for Figure 2 The assembly diagram of the lower kettle body and the pressure plate is shown;
[0020] Figure 4 for Figure 3 A top view of the lower kettle body and the pressing plate shown;
[0021] Figure 5 for Figure 3 The structural schematic diagram of the lower kettle body is shown;
[0022] Figure 6 This is a schematic structural diagram of a pressure plate according to an embodiment of the present application.
[0023] The reference numerals are as follows:
[0024] 100. Expansion kettle;
[0025] 10. lower kettle body; 11. battery circuit chamber; 110. liquid filling port; 111. liquid filling channel; 12. motor circuit chamber; 13. warm air circuit chamber; 14. partition;
[0026] 20. Upper pot body;
[0027] 30. Pressing plate; 301. Through hole; 31. Battery circuit pressing plate; 32. Long strip plate; 33. First connecting plate; 34. Second connecting plate;
[0028] 40. Pot lid. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.
[0030] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", and "have" are inclusive and therefore specify the presence of stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0031] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used. In addition, in the description of this application, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0032] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "outer", "end", "upper", "lower", "high", "lower", "inner", "middle", "side", "axial", "first direction", "second direction", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the figure. For example, if the mechanism in the figure flips, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.
[0033] "Expansion kettle" refers to a device used to store coolant and provide coolant cooling to the vehicle's battery circuit, electric drive circuit, heater circuit and other cooling circuits. The expansion kettle is provided with a fluid filling port, through which the expansion kettle introduces coolant into the cooling circuit. The coolant in the cooling circuit can also be recovered through the fluid filling port, or exhaust can be discharged through the fluid filling port, so as to achieve the purpose of circulating cooling of the cooling circuit.
[0034] At present, due to the existence of multiple coolant circuits, the expansion kettle has to be replenished with water in multiple ways when the thermal management integrated module is working. When there is a pressure inconsistency between different cooling circuits, the liquid level of the expansion kettle will surge, affecting the normal use of the expansion kettle.
[0035] In order to solve the technical problem of churning and surging of the liquid surface in the expansion kettle in the related art, the expansion kettle provided in the present application arranges a pressure plate on the cooling chamber to reduce the churning of the liquid surface when the expansion kettle is working.
[0036] Below through Figures 1 to 6 The expansion kettle according to the embodiment of the present application is described in detail.
[0037] like Figures 1 to 6 As shown, the present application provides an expansion kettle 100 for a vehicle, wherein a plurality of cooling chambers are arranged at the bottom of the expansion kettle 100, a hollow chamber is arranged at the top of the expansion kettle 100, and the expansion kettle is connected with a plurality of cooling circuits of the vehicle through the plurality of cooling chambers. The expansion kettle 100 further comprises: at least one pressure plate 30, wherein at least one pressure plate 30 covers at least one cooling chamber and separates the cooling chamber from the hollow chamber, and the pressure plate 30 is provided with a through hole 301 connecting the cooling chamber and the hollow chamber.
[0038] In this embodiment, the expansion kettle 100 provided in the embodiment of the present application is provided with a pressure plate 30 on the cooling chamber, so that the pressure plate 30 reduces the phenomenon of liquid surface churning when the expansion kettle 100 is working. The cooling chamber can also circulate liquid and exhaust gas through the through hole 301, thereby reducing the working noise of the expansion kettle 100. Moreover, the structure and manufacturing process of the pressure plate 30 are relatively simple, which can reduce the structural modification of the expansion kettle 100.
[0039] Specifically, the pressing plate 30 can not only reduce the mutual influence of pressure between different cooling chambers, but the hollow through holes 301 opened on the pressing plate 30 can also allow the steam and boiling liquid in the cooling chamber to pass through. When the expansion kettle 100 is working, the steam and boiling liquid in the cooling chamber can be discharged through the through holes 301 on the pressing plate 30, which can effectively reduce the liquid level churning phenomenon in the cooling chamber of the expansion kettle 100 caused by steam and boiling liquid.
[0040] In addition, the embodiment of the present application does not limit the specific distribution and specific structure of the pressure plate 30 and the cooling chamber because the main improvement of the present application is to cover the cooling chamber with the pressure plate 30 to reduce the boiling liquid phenomenon. As long as the pressure plate 30 and the cooling chamber can achieve this effect, they belong to the protection scope of the embodiment of the present application. As for the specific distribution and specific structure of the pressure plate 30 and the cooling chamber, it includes a variety of embodiments. Therefore, the embodiment of the present application does not limit the structure. Of course, in order to facilitate the understanding of the technical solution of the present application, the present application will elaborate on the specific distribution and specific structure of the pressure plate 30 and the cooling chamber through an embodiment described below.
[0041] The specific implementation of the expansion kettle 100 is described below through the preferred embodiment of the present application.
[0042] like Figures 2 to 5 As shown, in some embodiments, the plurality of cooling chambers include a battery circuit chamber 11 , a motor circuit chamber 12 , and a warm air circuit chamber 13 , and at least one pressure plate 30 includes a battery circuit pressure plate 31 covering the battery circuit chamber 11 .
[0043] In this embodiment, due to the high temperature of the battery, the temperature of the coolant in the battery circuit chamber 11 is high. When there is a pressure difference among the battery circuit chamber 11, the motor circuit chamber 12 and the heater circuit chamber 13, the high-temperature coolant in the battery circuit chamber 11 is prone to boiling. Therefore, the embodiment of the present application proposes covering the battery circuit chamber 11 with a battery circuit pressure plate 31 to reduce the boiling of the high-temperature coolant in the battery circuit chamber 11.
[0044] like Figures 2 to 5 As shown, in some embodiments, the expansion kettle 100 is provided with a fluid replenishing port 110 , the battery circuit chamber 11 includes a fluid replenishing channel 111 connected to the fluid replenishing port 110 , and the battery circuit pressure plate 31 covers the fluid replenishing channel 111 .
[0045] In the present embodiment, since the temperature of the high-temperature and high-pressure gas flowing back to the expansion kettle 100 is relatively high, when uneven pressure occurs inside the expansion kettle 100, the high-temperature and high-pressure gas is likely to cause the coolant to boil in the refill channel 111 of the expansion kettle 100. In order to reduce the boiling of the coolant in the refill channel 111 of the expansion kettle 100, the embodiment of the present application proposes that the battery circuit pressure plate 31 cover the refill channel 111, thereby reducing the boiling of the coolant in the refill channel 111 caused by the high-temperature and high-pressure gas.
[0046] like Figures 2 to 6 As shown, in some embodiments, the fluid replenishment channel 111 is distributed on the edge of the expansion kettle 100 and along the length of the expansion kettle 100, the battery circuit pressure plate 31 is configured as a long strip 32 having the same shape as the fluid replenishment channel 111, and the through holes 301 are distributed at a position of the battery circuit pressure plate 31 away from the fluid replenishment port 110.
[0047] In this embodiment, the coolant in the expansion kettle 100 is prone to boiling at the location of the fluid infusion port 110. Therefore, the embodiment of the present application proposes to distribute the through holes 301 at a position of the battery circuit pressure plate 31 away from the fluid infusion port 110, so as to guide the coolant at the fluid infusion port 110 and guide the coolant at the fluid infusion port 110 to a position away from the fluid infusion port 110, thereby reducing the boiling vortex phenomenon of the coolant at the fluid infusion port 110.
[0048] In addition, distributing the through holes 301 at a position of the battery circuit pressure plate 31 away from the fluid infusion port 110 can allow the high-pressure gas in the fluid infusion channel 111 to be discharged from the fluid infusion channel 111 through the through holes 301, thereby reducing the phenomenon that the high-pressure gas in the fluid infusion channel 111 pushes the battery circuit pressure plate 31 open.
[0049] like Figures 2 to 5 As shown, in some embodiments, the rehydration channel 111 is provided with a plurality of partitions 14 spaced apart along the length of the expansion kettle 100, the plurality of partitions 14 divide the rehydration channel 111 into a plurality of sub-chambers, and the battery circuit pressure plate 31 is erected on top of the plurality of partitions 14 and covers the plurality of sub-chambers.
[0050] In this embodiment, by erecting the battery circuit pressure plate 31 on the top of multiple partitions 14 and covering multiple sub-chambers, the battery circuit pressure plate 31 can reduce the boiling of the coolant in the multiple sub-chambers and can also reduce the cross-flow of boiling liquid in two adjacent sub-chambers.
[0051] Furthermore, the fluid replenishment channel 111 is divided into multiple sub-chambers by multiple partitions 14, and coolant is placed inside the multiple sub-chambers. The high-temperature coolant in the fluid replenishment channel 111 passes through the low-temperature coolant in the multiple sub-chambers in turn, thereby achieving a step-by-step cooling effect.
[0052] Specifically, compared with a cooling chamber, multiple sub-chambers can maximize the heat exchange efficiency and reduce the uneven heat exchange phenomenon of the low-temperature coolant in a cooling chamber. For example, the low-temperature coolant at the corners of a cooling chamber may not exchange heat, while the low-temperature coolant in the middle of a cooling chamber may experience excessive heat exchange.
[0053] like Figures 2 to 5 As shown, in some embodiments, a first connecting channel distributed along the width direction of the expansion kettle 100 is provided between the infusion channel 111 and the infusion port 110, and the battery circuit pressure plate 31 is also provided with a first connecting plate 33 covering the first connecting channel and connected to the long strip plate 32.
[0054] In this embodiment, the first connecting channel is located at the intersection of the infusion channel 111 and the infusion port 110. Since there is a pressure difference between the expansion kettle 100 and the external cooling circuit, the expansion kettle 100 is prone to boiling in this area. Therefore, the embodiment of the present application proposes to provide a first connecting plate 33 covering the first connecting channel on the battery circuit pressure plate 31, so as to reduce the occurrence of boiling liquid in the first connecting channel through the first connecting plate 33.
[0055] Specifically, the shape of the first connecting plate 33 is consistent with the shape of the first connecting channel. For example, the shape of the first connecting plate 33 and the shape of the first connecting channel are both T-shaped structures, thereby achieving the purpose of covering the intersection area between the infusion channel 111 and the infusion port 110.
[0056] like Figures 2 to 5 As shown, in some embodiments, a second connecting channel distributed along the width direction of the expansion kettle 100 is provided between the fluid replenishment channel 111 and the warm air circuit chamber 13, and the battery circuit pressure plate 31 is also provided with a second connecting plate 34 covering the second connecting channel and connected to the long strip plate 32.
[0057] In this embodiment, the second connecting channel is located at the intersection between the liquid replenishment channel 111 and the warm air circuit chamber 13. Since there is a pressure difference between the liquid replenishment channel 111 and the warm air circuit chamber 13, the expansion kettle 100 is prone to boiling in this area. Therefore, the embodiment of the present application proposes to set a second connecting plate 34 covering the second connecting channel on the battery circuit pressure plate 31, so as to reduce the boiling liquid phenomenon in the second connecting channel through the second connecting plate 34.
[0058] Specifically, the shape of the second connecting plate 34 is consistent with the shape of the second connecting channel. For example, the shape of the second connecting plate 34 and the shape of the second connecting channel are both trapezoidal structures. The size of the second connecting plate 34 gradually increases toward the warm air circuit chamber 13, thereby increasing the coverage of the second connecting plate 34.
[0059] like Figures 1 to 6 As shown, in some embodiments, the expansion kettle 100 includes a lower kettle body 10 and an upper kettle body 20 covering the lower kettle body 10, multiple cooling chambers are formed in the lower kettle body 10, a hollow chamber is formed in the upper kettle body 20, and at least one pressure plate 30 covers the lower kettle body 10.
[0060] In this embodiment, the pressure plate 30 covers the top opening of the lower kettle body 10 to reduce the boiling liquid in the lower kettle body 10 from tumbling toward the top opening of the lower kettle body 10 and reduce the boiling liquid in the lower kettle body 10 from boiling into the upper kettle body 20.
[0061] In addition, when the upper kettle body 20 and the lower kettle body 10 are assembled by a welding process, the pressing plate 30 can also be used to position and fix the upper kettle body 20 and the lower kettle body 10 during welding, thereby improving the assembly efficiency of the upper kettle body 20 and the lower kettle body 10.
[0062] A second aspect of the present application provides a cooling system, comprising a plurality of components to be cooled and an expansion kettle 100 according to the first aspect of the present application, wherein the expansion kettle 100 is connected to the plurality of components to be cooled through a plurality of cooling chambers.
[0063] In this embodiment, multiple components to be cooled include batteries, motors, and heaters. The cooling system can replenish coolant for the batteries through the battery circuit chamber 11 in the expansion kettle 100, replenish coolant for the motor through the motor circuit chamber 12, and replenish coolant for the heater through the heater circuit chamber 13. The cooling system proposed in this embodiment of the application has all the technical effects of the expansion kettle 100 and will not be elaborated on in detail herein.
[0064] A third aspect of the present application provides a vehicle, comprising the cooling system according to the second aspect of the present application.
[0065] In this embodiment, the vehicle proposed in the embodiment of the present application has all the technical effects of the expansion kettle 100 and the cooling system, which will not be elaborated in detail here.
[0066] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
[0067] In addition, the embodiments of the present application only illustrate the structures of the expansion kettle 100 related to the improvement points of the present application, and do not mean that the expansion kettle 100 of the present application does not have other structures. For example, the expansion kettle 100 also includes a driving device such as a water pump connected to the cooling chamber, and a kettle cover 40 arranged at the kettle mouth of the upper kettle body 20 and other structures. These structures all belong to the protection scope of the expansion kettle 100 of the embodiments of the present application, and other structures of the expansion kettle 100 will not be described one by one here.
[0068] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. An expansion kettle for a vehicle, characterized in that: The bottom of the expansion kettle (100) is provided with a plurality of cooling chambers, the top of the expansion kettle (100) is provided with a hollow chamber, and the expansion kettle (100) is connected to a plurality of cooling circuits of the vehicle through the plurality of cooling chambers. The expansion kettle (100) further comprises: At least one pressing plate (30), at least one pressing plate (30) covers at least one cooling chamber and separates the cooling chamber from the hollow chamber, and the pressing plate (30) is provided with a through hole (301) connecting the cooling chamber and the hollow chamber.
2. The expansion kettle according to claim 1, characterized in that: The plurality of cooling chambers include a battery circuit chamber (11), a motor circuit chamber (12) and a warm air circuit chamber (13), and at least one of the pressure plates (30) includes a battery circuit pressure plate (31) covering the battery circuit chamber (11).
3. The expansion kettle according to claim 2, characterized in that: The expansion kettle (100) is provided with a fluid replenishment port (110), the battery circuit chamber (11) comprises a fluid replenishment channel (111) connected to the fluid replenishment port (110), and the battery circuit pressure plate (31) covers the fluid replenishment channel (111).
4. The expansion kettle according to claim 3, characterized in that The rehydration channel (111) is distributed at the edge of the expansion kettle (100) and along the length of the expansion kettle (100); the battery circuit pressure plate (31) is configured as a long strip (32) having a shape consistent with the rehydration channel (111); and the through holes (301) are distributed at a position of the battery circuit pressure plate (31) away from the rehydration port (110).
5. The expansion kettle according to claim 4, characterized in that: The rehydration channel (111) is provided with a plurality of partitions (14) spaced apart along the length of the expansion kettle (100); the plurality of partitions (14) divide the rehydration channel (111) into a plurality of sub-chambers; and the battery circuit pressure plate (31) is mounted on top of the plurality of partitions (14) and covers the plurality of sub-chambers.
6. The expansion kettle according to claim 4, characterized in that A first connecting channel distributed along the width direction of the expansion kettle (100) is provided between the liquid replenishing channel (111) and the liquid replenishing port (110), and the battery circuit pressure plate (31) is further provided with a first connecting plate (33) covering the first connecting channel and connected to the long strip plate (32).
7. The expansion kettle according to claim 4, characterized in that A second connecting channel distributed along the width direction of the expansion kettle (100) is provided between the liquid replenishing channel (111) and the warm air circuit chamber (13), and the battery circuit pressure plate (31) is also provided with a second connecting plate (34) covering the second connecting channel and connected to the long strip plate (32).
8. The expansion kettle according to any one of claims 1 to 7, characterized in that The expansion kettle (100) comprises a lower kettle body (10) and an upper kettle body (20) covered to the lower kettle body (10), a plurality of cooling chambers are formed in the lower kettle body (10), the hollow chamber is formed in the upper kettle body (20), and at least one pressing plate (30) is covered to the lower kettle body (10).
9. A cooling system, characterized in that: It comprises a plurality of components to be cooled and an expansion kettle (100) as claimed in any one of claims 1 to 8, wherein the expansion kettle (100) is connected to the plurality of components to be cooled respectively through the plurality of cooling chambers.
10. A vehicle, characterized in that: The vehicle comprises a cooling system as claimed in claim 9.