Expansion kettle and automobile

Abstract

The utility model discloses an expansion kettle and an automobile, the expansion kettle comprises a kettle body, and the kettle body comprises an upper kettle body and a lower kettle body. A heat dissipation partition plate is arranged in a containing space defined by the upper kettle body and the lower kettle body, and the containing space is divided into a plurality of independent cavities including a first water inlet cavity, a second water inlet cavity, a water outlet cavity, at least one first cooling cavity and at least one second cooling cavity by the heat dissipation partition plate. The upper kettle body is provided with a first water inlet located in the first water inlet cavity and a second water inlet located in the second water inlet cavity. The lower kettle body is provided with a water outlet located in the water outlet cavity. The water outlet cavity is located between the first water inlet cavity and the second water inlet cavity in the second direction. And each cooling chamber is arranged between each water inlet chamber and each water outlet chamber. The cooling liquid flowing in from the water inlet chamber collides with the heat dissipation partition plate in the process of flowing into the water outlet chamber, so that the cooling liquid is fully cooled and bubbles are eliminated, and the problems that the temperature of the cooling liquid in the expansion kettle is not uniform and the cooling liquid contains the bubbles are solved.

Description

Technical Field

[0001] The utility model relates to the field of cooling systems, in particular to an expansion kettle and a car. Background Art

[0002] The automobile expansion kettle is an important component of the automobile cooling system. Its main function is: when the engine and gearbox are working, the temperature rises and heat needs to be dissipated, so a cooling circuit is provided. The cooling circuit is provided with coolant, and the excess heat of the heating components in the cooling circuit is taken away by the flow of coolant in the cooling circuit. At this time, the temperature of the coolant rises, the volume increases, and the pressure in the cooling circuit increases. Therefore, in order to reduce the pressure in the cooling circuit and maintain it at a normal value, an expansion kettle is also provided and connected to the cooling circuit. When the temperature of the coolant in the cooling circuit is high, the volume of the coolant in the cooling circuit is large and the pressure is high, then some of the excess coolant needs to be discharged to the expansion kettle to ensure stable pressure. When the temperature of the coolant in the cooling circuit is low, the volume of the coolant in the cooling circuit is small and the pressure is low, then the expansion kettle needs to discharge some of the coolant to replenish the cooling circuit, thereby increasing the pressure in the cooling circuit to keep the pressure stable.

[0003] In the prior art, there are often multiple cooling circuits in a car, and the operating temperatures and pressures of each cooling circuit are different, so multiple expansion kettles are required to avoid thermal interference caused by coolants of different temperatures between the circuits. However, with the current trend of increasingly compact engine compartment space, the design of multiple expansion kettles not only occupies a large area, but also increases the difficulty of arranging the engine compartment.

[0004] Therefore, in order to save space and reduce the difficulty of layout, an integrated expansion kettle solution is currently proposed. Instead of setting up multiple expansion kettles separately, each cooling circuit is connected to an expansion kettle, thereby saving space and reducing the difficulty of nacelle layout.

[0005] However, this solution also has some problems. On the one hand, after the high-temperature coolant in the cooling circuit flows into the expansion kettle, the expansion kettle needs to provide low-temperature coolant with the same temperature to replenish the cooling circuit to maintain the pressure in the cooling circuit. However, introducing coolants with different working temperatures into the same expansion kettle will cause the coolant temperature in the expansion kettle to be uneven, which will cause thermal interference between each other, and then cause the coolant in the expansion kettle to fail to meet the requirements of being provided back to the cooling circuit. On the other hand, the high-temperature coolant in the cooling circuit contains a large number of bubbles, which also does not meet the requirements of being provided back to the cooling circuit, making it impossible to complete the smooth circulation of the coolant.

[0006] As can be seen from the above, the coolant in the existing expansion kettle has uneven temperature and contains bubbles, which is not conducive to the stable operation of the cooling circuit. Utility Model Content

[0007] The utility model provides an expansion kettle and a car, which solves the problem that the cooling liquid in the existing expansion kettle has uneven temperature and contains bubbles, which is not conducive to the stable operation of the cooling circuit.

[0008] The utility model provides an expansion kettle, comprising a kettle body, the kettle body comprising an upper kettle body and a lower kettle body arranged in sequence in a first direction, the upper kettle body and the lower kettle body surround to form a containing space, a heat dissipation baffle is arranged in the containing space, and the heat dissipation baffle divides the containing space into a plurality of chambers independent of each other;

[0009] The plurality of chambers include a first water inlet chamber, a second water inlet chamber, a water outlet chamber, at least one first cooling chamber, and at least one second cooling chamber; the upper kettle body is provided with a first water inlet located at the first water inlet chamber, and a second water inlet located at the second water inlet chamber, and the lower kettle body is provided with a water outlet located at the water outlet chamber;

[0010] Among them, the water outlet chamber is located between the first water inlet chamber and the second water inlet chamber in the second direction, and the second direction is perpendicular to the first direction; and at least one first cooling chamber is arranged between the first water inlet chamber and the water outlet chamber, and at least one second cooling chamber is arranged between the second water inlet chamber and the water outlet chamber, so that the cooling liquid flowing in from the first water inlet can flow through the first water inlet chamber, at least one first cooling chamber in sequence and flow to the water outlet chamber, and the cooling liquid flowing in from the second water inlet can flow through the second water inlet chamber, at least one second cooling chamber in sequence and then flow to the water outlet chamber, and finally be discharged through the water outlet.

[0011] Here, it can be understood that: the accommodation space inside the upper kettle body and the lower kettle body is divided into multiple independent chambers by the heat dissipation partition, and they are arranged as: a water inlet chamber, a water outlet chamber and cooling chambers located between the two. On the one hand, when the high-temperature coolant flows into the kettle body, it needs to flow through multiple cooling chambers, so that it gradually cools down and finally reaches the same temperature as the low-temperature coolant stored in the expansion kettle itself.

[0012] On the other hand, by providing a heat dissipation baffle on the flow path of the high-temperature coolant, the coolant needs to collide with the heat dissipation baffle multiple times when flowing through, and the coolant rolls in the chamber. This not only reduces the flow speed of the coolant, increases its flow time, and allows it to more fully exchange heat with the air to cool down, but also increases the surface area of ​​the coolant during the collision, making it more efficient in heat exchange with the air, cooling faster, and more fully eliminating the bubbles contained in the high-temperature coolant. This solves the problem of uneven coolant temperature and bubbles in the expansion kettle.

[0013] In some embodiments, the heat dissipation baffle includes a plurality of heat dissipation sub-baffles, and a heat dissipation sub-baffle is disposed between any two adjacent chambers in the plurality of chambers, each heat dissipation sub-baffle extends along a first direction and includes an upper heat dissipation sub-baffle and a lower heat dissipation sub-baffle connected to each other, a side of the upper heat dissipation sub-baffle facing away from the lower heat dissipation sub-baffle is connected to the inner wall surface of the top of the upper kettle body, and a side of the lower heat dissipation sub-baffle facing away from the upper heat dissipation sub-baffle is connected to the inner wall surface of the bottom of the lower kettle body;

[0014] A heat dissipation sub-partition is arranged between two adjacent chambers that are connected. The upper heat dissipation sub-partition of the heat dissipation sub-partition is provided with a through hole that connects the two adjacent chambers for the coolant to pass through, and the lower heat dissipation sub-partition is provided with an opening that connects the two adjacent chambers for the coolant to pass through; the opening extends in a first direction, and one end of the opening extends to the inner wall surface of the bottom of the lower kettle body, and the other end of the lower heat dissipation sub-partition is close to one side of the upper heat dissipation sub-partition; the through hole and the opening are spaced apart in the first direction.

[0015] It can be understood here that although the through holes and openings are for the coolant to pass through and eventually flow to the water outlet chamber, the high-temperature coolant that has just been discharged into the water inlet chamber tends to flow in the corresponding part of the upper kettle body in each chamber (or it can be understood that the coolant flowing in the upper kettle body is usually the coolant with a higher temperature). By providing the upper heat sink baffle with relatively small through holes, the flow rate of the coolant can be further slowed down, and most of the coolant needs to hit the upper heat sink baffle before passing through the through holes. The rolling intensity of the coolant is higher, and the cooling and bubble elimination effects are better.

[0016] As for the chambers corresponding to the lower kettle body, since the main liquid flowing inside is low-temperature coolant, an opening is provided on the lower heat dissipation baffle. When the cooling circuit needs to be supplemented with coolant, the coolant can flow through the cooling chamber faster, and finally flow into the water outlet chamber and be supplemented back to the cooling circuit.

[0017] In some embodiments, the plurality of chambers are seven chambers, and the seven chambers are respectively a first chamber, a second chamber, a third chamber, a fourth chamber, a fifth chamber, a sixth chamber, and a seventh chamber;

[0018] Among them, the first chamber and the second chamber, the fourth chamber and the fifth chamber, and the sixth chamber and the seventh chamber are adjacent to each other in the third direction and are interconnected. In the second direction, the first partial chamber constituted by the first chamber and the second chamber, the third chamber, the second partial chamber constituted by the fourth chamber and the fifth chamber, and the third partial chamber constituted by the sixth chamber and the seventh chamber are arranged in sequence and are connected in the second direction; the third direction is perpendicular to the first direction and the second direction, respectively.

[0019] Among them, the first chamber constitutes a first water inlet chamber; at least one first cooling chamber is three first cooling chambers, and the second chamber, the third chamber and the fifth chamber together constitute three first cooling chambers; the sixth chamber constitutes a second water inlet chamber; at least one second cooling chamber is two second cooling chambers, and the seventh chamber and the fifth chamber together constitute two second cooling chambers, and the fourth chamber constitutes a water outlet chamber. By setting the expansion kettle as a seven-chamber structure, the total volume of the expansion kettle can be kept at a relatively small level while having a good cooling and degassing effect.

[0020] In some embodiments, in the upper kettle body, the second chamber and the upper heat dissipation baffle between the first chamber and the third chamber, and the upper heat dissipation baffle between any two adjacent chambers from the third chamber to the seventh chamber are each provided with through holes;

[0021] In the lower pot body, the lower radiator partitions between the first chamber and the second chamber, between the second chamber and the third chamber, between the third chamber and the fifth chamber, between the fourth chamber and the fifth chamber, between the fifth chamber and the seventh chamber, and between the sixth chamber and the seventh chamber are all opened with openings.

[0022] It can be understood here that: when the coolant flows in the upper cavity, its main flow path is: the coolant entering from the first cavity flows through the second and third cavity, and is divided into two parts in the third cavity, one part flows into the fifth cavity and then flows into the fourth cavity, and one part flows directly into the fourth cavity. The coolant flowing in from the sixth cavity will be directly divided into two parts in the sixth cavity, one part flows into the fourth cavity through the fifth and seventh cavities, and the other part flows directly into the fourth cavity. When the coolant flows in the lower cavity, its main flow path is: the coolant entering from the first cavity flows through the second, third and fifth cavities, and finally flows into the fourth cavity. The coolant entering from the sixth cavity flows through the seventh and fifth cavities and finally flows into the fourth cavity. And according to the flow path of the coolant, the expansion kettle is provided with a corresponding structure (opening and through hole) on the corresponding heat dissipation sub-baffle for the coolant to pass through.

[0023] This design allows the coolant to have more flow paths when it flows in the upper pot body, making the flow smoother and less likely to gather in a certain chamber. And by allocating the chambers reasonably, the coolant can flow through as many chambers as possible, extending the flow path of the coolant to the greatest extent, thereby achieving the best heat dissipation effect.

[0024] In some embodiments, the upper kettle body is further provided with a kettle mouth and a kettle cover, the kettle mouth passes through the top of the upper kettle body and is located at the third chamber, and the kettle cover is installed at the kettle mouth; a plurality of reinforcing ribs are provided at one end of the kettle mouth located in the upper kettle body, and the reinforcing ribs extend on a plane perpendicular to the first direction; and one end of the reinforcing ribs is connected to the kettle mouth, and the other end is connected to the heat dissipation baffle or the upper kettle body. On the one hand, these reinforcing ribs can serve as a reinforcing structure, making the expansion kettle stronger as a whole and having a longer service life. On the other hand, it can also make the coolant play a role similar to that of a heat dissipation baffle when flowing in the upper chamber, colliding with the coolant and causing it to roll, thereby enhancing the cooling and bubble elimination function of the third chamber as a cooling chamber.

[0025] In some embodiments, the kettle cover includes a shell, a sealing ring and a pressure relief valve. The shell is connected to the kettle mouth. One end of the pressure relief valve is connected to the shell, and the other end is sleeved with a sealing ring. By providing the pressure relief valve, bubbles released when the coolant flows and collides with the heat dissipation partition can flow out through the pressure relief valve. And by integrating the pressure relief valve into the kettle cover, the space occupied by the expansion kettle can be saved, and the space performance of the part of the car where the expansion kettle is provided (such as the engine compartment) can be further improved.

[0026] In some embodiments, the upper kettle body is provided with a first water inlet interface and a second water inlet interface, and the lower kettle body is provided with a water outlet interface. One end of the first water inlet interface is located in the first water inlet chamber and constitutes a first water inlet, and the other end of the first water inlet interface is located outside the kettle body and constitutes a first overflow; one end of the second water inlet interface is located in the second water inlet chamber and constitutes a second water inlet, and the other end of the second water inlet interface is located outside the kettle body and constitutes a second overflow; one end of the water outlet interface is located in the water outlet chamber and constitutes a water outlet. The first water inlet interface and the second water inlet interface are also provided with a copper sleeve sleeved on their ends at the ends away from the upper kettle body.

[0027] By providing the copper sleeve, the high-temperature coolant flowing from the cooling circuit can be prevented from damaging the water inlet interface due to excessive temperature, thereby enhancing the durability of the first water inlet interface and the second water inlet interface.

[0028] In some embodiments, the lower kettle body further includes a first mounting structure, a second mounting structure and a third mounting structure; the first mounting structure and the second mounting structure are arranged at intervals on the outer peripheral side of the lower kettle body and extend in a plane perpendicular to the first direction in a direction away from the lower kettle body; the third mounting structure is fixedly connected to the outer wall surface of the bottom of the lower kettle body and extends along the first direction. Such a structure forms a three-point fixation for the expansion kettle in space, thereby making the installation more stable, so that the expansion kettle has better anti-vibration performance in the car and works more stably.

[0029] The utility model also provides a car, comprising an engine cooling circuit, a gearbox cooling circuit and an expansion kettle provided in any of the above embodiments. The first water inlet of the expansion kettle is connected and communicated with the engine cooling circuit. The second water inlet of the expansion kettle is connected and communicated with the gearbox cooling circuit. The water outlet of the expansion kettle is connected and communicated with the engine cooling circuit and the gearbox cooling circuit. By providing the expansion kettle provided in any of the above embodiments, the flow time of the high-temperature water overflowing from the two circuits in the cavity and the water flow guidance can be increased, and the bubbles can be fully discharged from the mouth of the expansion kettle, which is beneficial to the buffering of the water flow and better gas-liquid separation, and is also beneficial to slowly make the water in the two high-temperature circuits reach the same temperature, providing coolant for the two circuits. Thereby, the space utilization rate of the space (such as the engine compartment) where the expansion kettle is installed in the car is higher. And the effect of cooling and eliminating bubbles is better.

[0030] In some possible embodiments, the first water inlet is connected to the engine cooling circuit through the first water inlet interface, wherein the first overflow port of the first water inlet interface is connected to the engine cooling circuit. The second water inlet is connected to the gearbox cooling circuit through the second water inlet interface, wherein the second overflow port of the second water inlet interface is connected to the gearbox cooling circuit. The water outlet is connected to the engine cooling circuit and the gearbox cooling circuit through the water outlet interface. Thus, the flow path of the coolant is more reasonably planned, so that the flow path of the coolant with a higher temperature in the engine cooling circuit is longer, thereby improving the cooling effect. The flow path of the coolant with a lower temperature in the gearbox cooling circuit is shorter, thereby reasonably reducing the volume of the expansion kettle.

[0031] In some embodiments, the engine cooling circuit includes an engine, the gearbox cooling circuit includes a gearbox, and the expansion kettle is higher than the engine and the gearbox in a first direction, so that part of the coolant can overflow and enter the expansion kettle when the pressure of the cooling circuit is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the principle of the expansion kettle, the gearbox cooling circuit and the engine cooling circuit of the embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of an expansion kettle according to an embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper kettle body of the expansion kettle according to the embodiment of the utility model;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower kettle body of the expansion kettle according to the embodiment of the utility model;

[0036] Figure 5 for Figure 2Sectional view in the AA direction;

[0037] Figure 6 This is a schematic diagram of the coolant flow path of the upper kettle body in the expansion kettle of the embodiment of the utility model;

[0038] Figure 7 This is a schematic diagram of the coolant flow path of the lower kettle body in the expansion kettle of the utility model embodiment;

[0039] Figure 8 It is a schematic structural diagram of a kettle cover in an expansion kettle according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. Expansion kettle; 100. Kettle body;

[0042] 101, first water inlet chamber; 102, second water inlet chamber; 103, water outlet chamber;

[0043] 10. Accommodation space; 11. First chamber; 12. Second chamber; 13. Third chamber; 14. Fourth chamber; 15. Fifth chamber; 16. Sixth chamber; 17. Seventh chamber;

[0044] 2. Upper kettle body; 21. First water inlet; 211. First water inlet interface; 212. First overflow port; 22. Second water inlet; 221. Second water inlet interface; 222. Second overflow port; 23. Copper sleeve;

[0045] 3. Lower pot body; 31. Water outlet; 311. Water outlet interface;

[0046] 4. pot mouth; 41. reinforcing ribs; 42. pot cover; 421. shell; 422. pressure relief valve; 423. sealing ring;

[0047] 5. heat dissipation baffle; 50. heat dissipation sub-baffle; 51. upper heat dissipation sub-baffle; 511. through hole; 52. lower heat dissipation sub-baffle; 521. opening;

[0048] 61. First mounting structure; 62. Second mounting structure; 63. Third mounting structure; 631. Rubber ring;

[0049] 71. First filling amount scale line; 72. Second filling amount scale line;

[0050] 8. Engine cooling circuit; 9. Transmission cooling circuit;

[0051] x, second direction; y, third direction; z, first direction. DETAILED DESCRIPTION

[0052] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0053] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0054] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0055] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0056] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0057] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0058] It should be noted that, for the convenience of description, the length direction of the expansion kettle is the second direction x, the width direction of the expansion kettle is the third direction y, and the height direction of the expansion kettle is the first direction z. First, the working principle of the expansion kettle is described by combining the accompanying drawings and taking the engine cooling circuit and the gearbox cooling circuit as examples.

[0059] See also Figure 1 , Figure 1 It is a schematic diagram of the working principle of the expansion kettle, the gearbox cooling circuit and the engine cooling circuit in the embodiment of the utility model.

[0060] like Figure 1 As shown, the cooling circuit in the automobile mainly includes an engine cooling circuit 8 and a gearbox cooling circuit 9 (because of the same principle, they are collectively referred to as cooling circuits below and are no longer distinguished). The engine cooling circuit may include an engine (not shown in the figure) and an engine cooling pipe (not shown in the figure). The gearbox may include a gearbox (not shown in the figure) and a gearbox cooling pipe (not shown in the figure). It should be noted that the above structural description of each cooling circuit is only an example and does not limit the cooling circuit provided by the utility model. In fact, the cooling circuit may include more components in the above examples and drawings.

[0061] Among them, the engine cooling pipe and the gearbox cooling pipe (hereinafter collectively referred to as the cooling pipe) each have a certain volume of coolant. These coolants flow in the corresponding cooling pipes to take away the excess heat generated by the engine or gearbox, and maintain the engine or gearbox to maintain stable operation under more appropriate temperature conditions. In this process, the coolant absorbs heat, causing the coolant volume to increase, and then the pressure in the cooling pipe increases, which is not conducive to the normal operation of the cooling circuit. Therefore, an expansion kettle needs to be provided on the car to guide out part of the high-temperature coolant, so as to maintain the pressure in the cooling pipe at a stable value, thereby ensuring the normal operation of the cooling circuit. When the temperature of the cooling circuit drops, the pressure in the cooling circuit drops. At this time, the expansion kettle is needed to replenish part of the coolant back into the cooling circuit to maintain the pressure in the cooling circuit stable.

[0062] However, in the prior art, the coolant temperatures of the multiple cooling circuits introduced by the expansion kettle are uneven, which will cause thermal interference in the expansion kettle. In addition, the high-temperature coolant flowing in contains a large number of bubbles, which does not meet the requirements of providing back to the cooling circuit.

[0063] Based on this, the utility model proposes an expansion kettle and a car, which solves the problem of uneven temperature of coolant in the expansion kettle and containing bubbles in the prior art.

[0064] The above is an explanation of the principle of the expansion kettle. The specific working scenario of the expansion kettle will be explained below with reference to the accompanying drawings.

[0065] like Figure 1 As shown, the automobile includes an engine cooling circuit 8, a transmission cooling circuit 9 and an expansion kettle 1, and the first water inlet 21 of the expansion kettle 1 (please refer to the following for the first water inlet) is connected and communicated with the engine cooling circuit 8. The second water inlet 22 of the expansion kettle 1 (same as above) is connected and communicated with the transmission cooling circuit 9. The water outlet 31 of the expansion kettle 1 is connected and communicated with the engine cooling circuit 8 and the transmission cooling circuit 9. Thus, the coolant in multiple cooling circuits is introduced into one expansion kettle, which improves the space performance of the automobile.

[0066] Further, the engine cooling circuit 8 includes an engine (not shown in the figure), and the gearbox cooling circuit 9 includes a gearbox (not shown in the figure). The expansion kettle 1 is higher than the engine and the gearbox in the first direction z, so that part of the coolant can overflow and enter the expansion kettle when the pressure of the cooling circuit is high.

[0067] Those skilled in the art will appreciate that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the automobile. In other embodiments, the automobile may also include more or different types of cooling circuits, such as motor and battery cooling circuits, etc., and the principle is not further described because the principles are the same. The present application does not make any limitation thereto.

[0068] The above is a description of the working scene of the expansion kettle. The structure of the expansion kettle will be described in detail below with reference to the accompanying drawings.

[0069] Please refer to Figure 2-Figure 5 , Figure 2 This is a schematic structural diagram of an expansion kettle according to an embodiment of the utility model; Figure 3 This is a schematic structural diagram of the upper kettle body of the expansion kettle according to an embodiment of the utility model; Figure 4 This is a schematic structural diagram of the lower kettle body of the expansion kettle according to the embodiment of the utility model. Figure 5 for Figure 2 Cross-sectional view along the AA direction.

[0070] like Figure 2-Figure 5 As shown, combined with Figure 1 It is understood that the expansion kettle 1 includes a kettle body 100, and the kettle body 100 includes an upper kettle body 2 and a lower kettle body 3 arranged in sequence in the first direction z, and the upper kettle body 2 and the lower kettle body 3 surround and form a receiving space 10, and a heat dissipation baffle 5 is arranged in the receiving space 10, and the heat dissipation baffle 5 divides the receiving space 10 into a plurality of independent chambers. Each chamber can be understood as having an upper chamber located in the upper kettle body 2 and a lower chamber located in the lower kettle body 3.

[0071] Those skilled in the art can understand that the connection method of the upper kettle body 2 and the lower kettle body 3 is not limited. In one embodiment, the upper kettle body 2 and the lower kettle body 3 are welded by welding. In another alternative embodiment, the two can also be fixed by riveting. This application does not limit this.

[0072] The multiple chambers include a first water inlet chamber 101, a second water inlet chamber 102, a water outlet chamber 103, at least one first cooling chamber (e.g., the second chamber 12, the third chamber 13, and the fifth chamber 15), and at least one second cooling chamber (e.g., the seventh chamber 17 and the fifth chamber 15). It should be noted that the number of the first cooling chamber and the second cooling chamber is not limited, and can be one or more.

[0073] The upper kettle body 2 is provided with a first water inlet 21 located at the first water inlet chamber 101 and a second water inlet 22 located at the second water inlet chamber 102 , and the lower kettle body 3 is provided with a water outlet 31 located at the water outlet chamber 103 .

[0074] Further, such as Figure 3-Figure 4 As shown, combined with Figure 2 It is understood that the upper kettle body 2 is also provided with a first water inlet interface 211 and a second water inlet interface 221, and the lower kettle body 3 is also provided with a water outlet interface 311. One end of the first water inlet interface 211 is located in the first water inlet chamber 101 and constitutes the first water inlet 21, and the other end of the first water inlet interface 211 is located outside the kettle body and constitutes the first overflow port 212. One end of the second water inlet interface 221 is located in the second water inlet chamber 102 and constitutes the second water inlet 22, and the other end of the second water inlet interface 221 is located outside the kettle body and constitutes the second overflow port 222; one end of the water outlet interface 311 is located at the water outlet chamber 103 and constitutes the water outlet 31.

[0075] The first water inlet interface 211 and the second water inlet interface 221 are further provided with a copper sleeve 23 sleeved on the end thereof at one end away from the upper kettle body 2 .

[0076] like Figure 1-Figure 4As shown, it can be understood that the upper kettle body 2 includes two water inlet interfaces, one end of the first water inlet interface 211 is located outside the kettle body, used to connect the engine cooling circuit 8 in the car, this end constitutes the first overflow port 212, and the other end extends into the first water inlet chamber 101 inside the kettle body, this end constitutes the first water inlet 21. One end of the second water inlet interface 221 is located outside the kettle body, used to connect the gearbox cooling circuit 9 in the car, this end constitutes the second overflow port 222, and the other end extends into the second water inlet chamber 102 inside the kettle body, this end constitutes the second water inlet 22. The lower kettle body 3 includes a water outlet interface 311, the water outlet interface 311 is also located outside the kettle body at one end and connected to the engine cooling circuit 8 and the gearbox cooling circuit 9, and the other end extends into the water outlet chamber 103 inside the kettle body, this end constitutes the water outlet 31. In addition, the two overflow ports are sleeved with a copper sleeve 23. This prevents the high-temperature coolant flowing in from the cooling circuit from damaging the overflow port.

[0077] In another alternative embodiment, the water inlet and outlet interfaces may not be provided, but a hose may be provided to directly extend into the expansion kettle, and the end of the hose located in the expansion kettle is the water inlet or the water outlet. This application does not limit this.

[0078] The water outlet chamber 103 is located between the first water inlet chamber 101 and the second water inlet chamber 102 in the second direction x, and the second direction x is perpendicular to the first direction z. In addition, all first cooling chambers are arranged between the first water inlet chamber 101 and the water outlet chamber 103, and all second cooling chambers are arranged between the second water inlet chamber 102 and the water outlet chamber 103, so that the coolant flowing in from the first water inlet 21 can flow through the first water inlet chamber 101 and all first cooling chambers in sequence to the water outlet chamber 103, and the coolant flowing in from the second water inlet 22 can flow through the second water inlet chamber 102 and all second cooling chambers in sequence and then flow to the water outlet chamber 103, and finally be discharged through the water outlet 31.

[0079] Here, it can be understood that: the accommodation space 10 inside the upper kettle body 2 and the lower kettle body 3 is divided into multiple independent spaces by the heat dissipation baffle 5, and it is set as: a water inlet chamber, a water outlet chamber and a cooling chamber located between the two. On the one hand, when the high-temperature coolant flows into the kettle body 100, it needs to flow through multiple chambers, so that it gradually cools down and finally matches the temperature of the low-temperature coolant stored in the expansion kettle 1 itself. On the other hand, by arranging multiple heat dissipation baffles 5 on the path of the high-temperature coolant flow, the coolant will collide with the heat dissipation baffle 5 multiple times when flowing and cause the coolant to roll in the chamber. This not only reduces the flow speed of the coolant, increases its flow time, and makes it more fully exchange heat with the air to cool down, but also increases the surface area of ​​the coolant during the collision, so that it is more efficient in heat exchange with the air, cools down faster, and more fully eliminates the bubbles contained in the high-temperature coolant. Thereby solving the problem of uneven coolant temperature and bubbles in the expansion kettle 1.

[0080] It should be noted here that if Figure 1 As shown, the expansion kettle is a stable system, which will be filled with a certain amount of coolant when installed. When it is working, the coolant may flow in the upper kettle body 2 (when there is more coolant or the coolant temperature is high and the volume is large), or it may flow in the lower kettle body 3 (when there is less coolant or the coolant temperature is low and the volume is small). Therefore, the description of the coolant flow path below will be divided into two situations: flow in the upper kettle body 2 and flow in the lower kettle body 3.

[0081] Furthermore, in order to make it more convenient for users to add notes, Figure 2 As shown, a first filling amount scale line 71 (or also understood as a maximum filling amount scale line) and a second filling amount scale line 72 (or also understood as a minimum filling amount scale line) are also provided on the expansion kettle 1. The two are arranged at intervals in the first direction z, and the first filling amount scale line 71 is arranged on the outer peripheral side of the upper kettle body 2, and the second filling amount scale line 72 is arranged on the outer peripheral side of the lower kettle body 3. Therefore, when adding coolant, the user can more clearly recognize the amount of coolant that needs to be added.

[0082] The above is a brief description of the basic structure of the expansion kettle. The following will further describe the possible structures inside the expansion kettle and the resulting technical effects.

[0083] Firstly, the specific structure of the aforementioned heat dissipation baffle is not limited.

[0084] like Figure 5 As shown, combined with Figure 2-Figure 4It is understood that in one embodiment, the heat dissipation baffle 5 includes a plurality of heat dissipation sub-baffles 50, and a heat dissipation sub-baffle 50 is arranged between any two adjacent chambers in the plurality of chambers, and each heat dissipation sub-baffle 50 extends along the first direction z and includes an upper heat dissipation sub-baffle 51 and a lower heat dissipation sub-baffle 52 connected to each other, and the side of the upper heat dissipation sub-baffle 51 facing away from the lower heat dissipation sub-baffle 52 is connected to the inner wall surface of the top of the upper kettle body 2, and the side of the lower heat dissipation sub-baffle 52 facing away from the upper heat dissipation sub-baffle 51 is connected to the inner wall surface of the bottom of the lower kettle body 3.

[0085] In the heat dissipation sub-partition 50 arranged between two adjacent chambers that are connected, the upper heat dissipation sub-partition 51 of the heat dissipation sub-partition is provided with a through hole 511 connecting the two adjacent chambers for the coolant to pass through, and the lower heat dissipation sub-partition 52 is provided with an opening 521 connecting the two adjacent chambers for the coolant to pass through; the opening 521 extends in the first direction z, and one end of the opening 521 extends to the inner wall surface of the bottom of the lower kettle body 3, and the other end of the lower heat dissipation sub-partition 52 is close to one side of the upper heat dissipation sub-partition 51; the through hole 511 and the opening 521 are spaced apart in the first direction z.

[0086] It can be understood here that although the through hole 511 and the opening 521 are for the coolant to pass through and eventually flow to the water outlet chamber 103. However, the high-temperature coolant that has just been discharged into the water inlet chamber tends to flow in the corresponding part of the upper kettle body 2 in each chamber (or it can be understood that the coolant flowing in the upper kettle body 2 is usually a coolant with a higher temperature). By providing the upper heat dissipation sub-plate 51 with a relatively small through hole 511, the flow speed of the coolant can be further slowed down, and most of the coolant needs to hit the upper heat dissipation sub-plate 51 before passing through the through hole 511, the rolling strength of the coolant is higher, and the cooling and bubble elimination effect is better.

[0087] As for the chambers corresponding to the lower kettle body 3, since the main flow inside is low-temperature coolant, an opening 521 is set on the lower radiator partition 52. When the cooling circuit needs to be supplemented with coolant, the coolant can flow through the chambers faster and finally flow into the water outlet chamber 103 and be supplemented back to the cooling circuit.

[0088] In another alternative embodiment, the upper heat dissipation sub-spacer 51 and the lower heat dissipation sub-spacer 52 may also be configured to have through holes 511 to further improve the heat dissipation effect. This application does not limit this.

[0089] Therefore, further, the specific position of each water inlet interface is not limited.

[0090] like Figure 4 As shown, combined with Figure 2-Figure 3It is understood that, in one embodiment, one end of the water inlet formed by the water inlet interface (e.g., the first water inlet interface 211 and / or the second water inlet interface 221) directly extends into the lower kettle body 3 in the first direction z. Thus, when the temperature of the cooling circuit is low, the high-temperature coolant can be directly introduced through the water inlet interface to below the liquid level of the coolant stored in the expansion kettle, so that the high-temperature coolant and the low-temperature coolant stored in the expansion kettle are quickly mixed, thereby achieving the purpose of rapid temperature equalization. In a low-load scenario, the high-temperature coolant can achieve the effect of temperature equalization faster and meet the requirements of providing to the cooling circuit faster.

[0091] In another alternative embodiment, one end of the water inlet formed by the water inlet interface (for example, the first water inlet interface 211 and / or the second water inlet interface 221) extends into the upper kettle body in the first direction z, and is spaced apart from the lower kettle body in the first direction z. Thus, most of the high-temperature coolant flows above the low-temperature coolant in the expansion kettle (or it can be understood that only a small part of the high-temperature coolant is mixed with the low-temperature coolant in the kettle itself), and cooperates with the multiple through holes 511 provided in the upper kettle body, so that the high-temperature coolant dissipates heat more fully, the cooling effect is better, and the bubbles in the high-temperature liquid can be more thoroughly eliminated under multiple impacts.

[0092] Those skilled in the art will appreciate that the specific structure of the heat dissipation sub-spacer 50 itself is not limited.

[0093] For example, Figure 5 As shown, in one embodiment, the heat dissipation sub-partition 50 can be made of metal, so that it can enhance the cooling effect of the heat dissipation part, and the heat dissipation part has high strength and can be used for a long time without failure.

[0094] In another alternative embodiment, the heat dissipation sub-partition 50 can also be made of a polymer material to make its properties more stable and reduce the weight of the expansion kettle. This application is not limited here.

[0095] Furthermore, the heat dissipation sub-baffle 50 made of metal material can also be integrally formed with the corresponding part of the kettle body (such as the upper kettle body 2 and the lower kettle body 3). This makes the processing simpler and the fixation more secure. In another alternative embodiment, the heat dissipation sub-baffle 50 can also be configured to be fixedly connected to the corresponding part of the kettle body. The present application is also not limited here.

[0096] Secondly, the specific structure of the expansion kettle is also not limited.

[0097] like Figure 3-Figure 4 As shown, combined with Figure 2It is understood that in one embodiment, the expansion kettle 1 is divided into seven chambers by the heat dissipation partition. By setting the expansion kettle 1 as a seven-chamber structure, the total volume of the expansion kettle 1 can be kept at a relatively small level while having a good cooling and degassing effect.

[0098] In some other alternative embodiments, the number of chambers of the expansion kettle can also be increased or decreased according to different scene requirements to balance the relationship between the heat dissipation performance and volume of the expansion kettle, for example, six, eight or nine chambers are provided, etc. This application is not limited here.

[0099] Furthermore, the specific positional relationship of each chamber is not limited.

[0100] For example, Figure 3-Figure 4 As shown, the expansion kettle 1 now includes seven chambers, wherein the first chamber 11 and the second chamber 12, the fourth chamber 14 and the fifth chamber 15, and the sixth chamber 16 and the seventh chamber 17 are adjacently arranged and interconnected in the third direction y. In the second direction x, the first partial chamber formed by the first chamber 11 and the second chamber 12, the third chamber 13, the second partial chamber formed by the fourth chamber 14 and the fifth chamber 15, and the third partial chamber formed by the sixth chamber 16 and the seventh chamber 17 are sequentially arranged and interconnected in the second direction x; the third direction y is perpendicular to the first direction z and the second direction x.

[0101] Among them, the first chamber 11 constitutes a first water inlet chamber 101; at least one first cooling chamber is three first cooling chambers, and the second chamber 12, the third chamber 13 and the fifth chamber 15 together constitute three first cooling chambers; the sixth chamber 16 constitutes a second water inlet chamber 102; at least one second cooling chamber is two second cooling chambers, the seventh chamber 17 and the fifth chamber 15 together constitute two second cooling chambers, and the fourth chamber 14 constitutes a water outlet chamber 103.

[0102] It can be understood here that the accommodating space 10 of the expansion kettle is divided into seven chambers from the first to the seventh, wherein the seven chambers are further divided into four parts of approximately equal area, namely: a first partial chamber constituted by the first chamber 11 and the second chamber 12, a second partial chamber constituted by the third chamber 13, the fourth chamber 14 and the fifth chamber 15, and a third partial chamber constituted by the sixth chamber 16 and the seventh chamber 17, and are arranged in sequence in the second direction x.

[0103] At this time, the aforementioned at least one first cooling chamber specifically includes three first cooling chambers: the second chamber 12, the third chamber 13 and the fifth chamber 15. And the aforementioned at least one second cooling chamber specifically includes two second cooling chambers: the fifth chamber 15 and the seventh chamber 17. At this time, the coolant entering from the first chamber 11 (first water inlet chamber 101) is cooled by the second chamber 12, the third chamber 13 and the fifth chamber 15, and finally flows into the fourth chamber 14 (water outlet chamber 103). And the coolant entering from the sixth chamber 16 (second water inlet chamber 102) is cooled by the seventh chamber 17 and the fifth chamber 15, and finally flows into the fourth chamber 14 (water outlet chamber 103).

[0104] Through the above analysis of the path of water flow, it can be found that the coolant flowing in from the first chamber 11 and the coolant flowing in from the sixth chamber 16 complete the confluence in the fifth chamber 15 (or it can be understood that the fifth chamber 15 is both a first cooling chamber and reused as a second cooling chamber). On the one hand, when only a single cooling loop flows into the coolant, the space can be utilized to the maximum extent, so that the flow path of the coolant can be as long as possible without changing the volume of the expansion kettle, thereby enhancing its heat dissipation effect and the effect of eliminating bubbles. On the other hand, when the first chamber 11 and the sixth chamber 16 are simultaneously filled with water, the coolant entering the first chamber 11 has been cooled by the first chamber 11, the second chamber 12 and the third chamber 13, and the temperature has gradually decreased when entering the fifth chamber 15. The coolant entering the sixth chamber 16 has been cooled by the seventh chamber 17. Both have been fully cooled and bubbles have been eliminated, so the fifth chamber 15 is provided to make the two merge, so that the two streams of coolant can be more fully mixed and heat exchange occurs, and the temperature uniformity effect is better.

[0105] In another alternative embodiment, when the temperatures of the coolants in the first water inlet chamber 101 and the second water inlet chamber 102 are relatively consistent, the fifth chamber 15 can also be used only as a second cooling chamber, so that the cooling effect of the coolant entering from the second water inlet chamber 102 can be further enhanced. And before reaching the water outlet chamber 103, the coolant entering the first water inlet chamber 101 and the coolant entering the second water inlet chamber 102 will not undergo direct heat exchange, but will undergo heat exchange with the low-temperature coolant and air contained in the cylinder itself, thereby further avoiding thermal interference between the two coolants. This application is not limited here.

[0106] Furthermore, the communication relationship between the aforementioned chambers is not limited.

[0107] like Figure 3-Figure 4As shown, in one embodiment, in the upper kettle body 2, the second chamber 12 and the upper heat dissipation baffle 51 between the first chamber 11 and the third chamber 13, as well as the upper heat dissipation baffle 51 between any two adjacent chambers from the third chamber 13 to the seventh chamber 17 are each provided with a through hole 511.

[0108] In the lower kettle body 3, the lower radiator partitions 52 between the first chamber 11 and the second chamber 12, between the second chamber 12 and the third chamber 13, between the third chamber 13 and the fifth chamber 15, between the fourth chamber 14 and the fifth chamber 15, between the fifth chamber 15 and the seventh chamber 17, and between the sixth chamber 16 and the seventh chamber 17 are all provided with openings 521.

[0109] The description here is more complicated, so it can be understood from the perspective of the flow path of the coolant.

[0110] See also Figure 6-Figure 7 , Figure 6 This is a schematic diagram of the coolant flow path of the upper kettle body in the expansion kettle of the embodiment of the utility model; Figure 7 This is a schematic diagram of the coolant flow path of the upper kettle body in the expansion kettle of the utility model embodiment.

[0111] like Figure 6-Figure 7 As shown, combined with Figure 2-Figure 5 It is understood that here or it can be understood that when the coolant flows in the upper layer, its main flow path is: the coolant entering from the first chamber 11 flows through the second chamber 12 and the third chamber 13, and is divided into two parts in the third chamber 13, one part flows into the fifth chamber 15 and then flows into the fourth chamber 14, and one part flows directly into the fourth chamber 14. The coolant flowing in from the sixth chamber 16 will be directly divided into two parts in the sixth chamber 16, one part flows into the fourth chamber 14 through the fifth and seventh chambers 17, and the other part flows directly into the fourth chamber 14. Such a design can make the coolant flow more when it flows in the upper kettle body 2, thereby making the flow smoother and not easy to gather the coolant in a certain chamber. When the coolant flows in the lower cavity, its main flow path is: the coolant entering from the first chamber 11 flows through the second chamber 12, the third chamber 13 and the fifth chamber 15, and finally flows into the fourth chamber 14. The coolant entering from the sixth chamber 16 flows through the seventh and fifth chambers 15 and finally flows into the fourth chamber 14. According to the flow path of the coolant, the expansion kettle is provided with a corresponding structure (opening 521 and through hole 511) on the corresponding heat dissipation sub-partition for the coolant to pass through. By rationally planning the connection mode of the chambers and thus planning the path of the coolant, the coolant can flow through as many chambers as possible, and the flow path of the coolant is extended to the greatest extent, thereby achieving better heat dissipation and bubble elimination effects.

[0112] After determining the coolant flow path, in order to further enhance the cooling and bubble elimination effects, the chambers of the expansion kettle may be arranged to have different depths in the first direction z.

[0113] like Figure 2 As shown, combined with Figure 4 It is understood that, in one embodiment, the bottom surfaces of the first chamber 11, the second chamber 12 and the third chamber 13 are higher than the fourth chamber 14, the fifth chamber 15, the sixth chamber 16 and the seventh chamber 17 in the first direction z. It can be understood here that the first chamber 11, the second chamber 12 and the third chamber 13 are shallower, while the fourth chamber 14, the fifth chamber 15, the sixth chamber 16 and the seventh chamber 17 are deeper. There is a height difference between the third chamber 13 and the fifth chamber 15. The coolant from the first chamber 11 can flow faster and have a better impact effect when flowing from the third chamber 13 to the fifth chamber 15 due to the influence of gravity, thereby further improving the heat dissipation and bubble elimination effects.

[0114] It will be appreciated by those skilled in the art that, in another alternative embodiment, the bottom surfaces of the first to seventh chambers are also located at the same height in the first direction z, so that the overall shape of the expansion kettle is more regular and easier to process and transport, and the present application does not impose any limitation thereto.

[0115] The above is a detailed description of the relevant parts of the accommodation space of the expansion chamber. In order to allow the user to add coolant during use and maintain the stability of the expansion kettle system, a kettle mouth and a kettle cover are also required. The relevant structure will be described in detail below in conjunction with the accompanying drawings.

[0116] See also Figure 8 , Figure 8 It is a schematic structural diagram of a kettle cover in an expansion kettle according to an embodiment of the utility model.

[0117] like Figure 8 As shown, combined with Figure 2-Figure 3 It is understood that in one embodiment, the upper kettle body 2 is also provided with a kettle mouth 4 and a kettle cover 42, the kettle mouth 4 passes through the top of the upper kettle body 2 and is located at the third chamber 13, and the kettle cover 42 is installed at the kettle mouth 4; the kettle mouth 4 is located at one end of the upper kettle body 2 and is provided with a plurality of reinforcing ribs 41, and the reinforcing ribs 41 extend on a plane perpendicular to the first direction z; and one end of the reinforcing rib 41 is connected to the kettle mouth 4, and the other end is connected to the heat dissipation baffle 5 or the upper kettle body 2. On the one hand, these reinforcing ribs 41 can play a role of reinforcing the structure, making the overall strength of the expansion kettle higher and the service life longer. On the other hand, it can also play a role similar to that of a heat dissipation baffle when the coolant flows in the upper chamber, colliding with the coolant and causing it to roll, thereby enhancing the cooling and bubble elimination effect of the third chamber 13 as a cooling chamber.

[0118] Those skilled in the art will appreciate that the specific connection method between the pot mouth 4 and the pot cover 42 is not limited. In one embodiment, the pot mouth 4 is provided with threads, and the pot cover 42 is threadedly connected to the pot mouth 4. It is convenient for the user to add coolant or observe the coolant in the expansion kettle.

[0119] In another alternative embodiment, the pot mouth 4 and the pot cover 42 may also be snap-connected, which is not limited in the present application.

[0120] After the high-temperature coolant discharges the bubbles, the pressure inside the expansion kettle will also change. Therefore, a pressure relief valve must be provided in the expansion kettle to keep the pressure inside the expansion kettle stable.

[0121] So Figure 8 As shown, combined with Figure 2 It is understood that in one embodiment, the pot cover 42 includes a shell 421, a sealing ring 423 and a pressure relief valve 422. The shell 421 is connected to the pot mouth 4; one end of the pressure relief valve 422 is connected to the shell 421, and the other end is sleeved with the sealing ring 423.

[0122] Here, it can be understood that the pressure relief valve 422 is integrated into the kettle cover 42, and a sealing ring 423 is also provided for sealing, thereby further improving the space utilization rate of the expansion kettle.

[0123] In another alternative embodiment, the pressure relief valve 422 may also be separately provided on the upper kettle body 2 and fixedly connected to the upper kettle body 2. The present application does not make any limitation thereto.

[0124] The above is a description of the specific structure of each part inside the expansion kettle and the beneficial effects brought about. The following will specifically describe the possible connection relationship between the expansion kettle and other parts in the car in conjunction with the accompanying drawings.

[0125] like Figure 2 As shown, in one embodiment, the lower kettle body 3 further includes a first mounting structure 61, a second mounting structure 62 and a third mounting structure 63. The first mounting structure 61 and the second mounting structure 62 are arranged at intervals on the outer peripheral side of the lower kettle body 3, and extend in a plane perpendicular to the first direction z in a direction away from the lower kettle body 3; the third mounting structure 63 is fixedly connected to the outer wall surface of the bottom of the lower kettle body 3, and extends along the first direction z. Such a structure forms a three-point fixation for the expansion kettle 1 in space, so that the installation is more stable, and the expansion kettle 1 has better anti-vibration performance in the car and works more stably.

[0126] Further, such as Figure 2 As shown, combined with Figure 4It is understood that the first mounting structure 61 and the second mounting structure 62 are mounting platforms extending outward from the outer peripheral side of the lower kettle body 3, and the extending part thereof is provided with a mounting hole, and the mounting hole is provided with a thread. The third mounting structure 63 is a columnar structure, and one end thereof is fixedly connected to the lower kettle body 3, and the other end is provided with a thread and is sleeved with a rubber ring 631. It can be understood here that: the first mounting structure 61 and the second mounting structure 62 adopt a cantilever trapezoidal structure, and are provided with a mounting hole for the bolt to pass through. And a third mounting structure 63 is also provided in the first direction, which is a cylindrical structure and is sleeved with a rubber ring 631. During installation, the expansion kettle can be fixed to the crossbeam of the vehicle body engine compartment by passing the bolts through the mounting holes of the first mounting structure 61 and the second mounting structure 62, and the third mounting structure 63 can be fixedly connected to the bracket extending from the longitudinal beam of the vehicle body engine compartment, and the fixing effect of the expansion kettle can be further ensured. The rubber ring 631 provided on the third mounting structure 63 can make up for the dimensional tolerance and ensure that there is no installation stress during installation. It can also reduce the vibration transmission of the entire vehicle when the expansion kettle is working, thereby ensuring the fixing effect and service life.

[0127] It should be noted that the specific structures of the first mounting structure, the second mounting structure and the third mounting structure are not limited. In another alternative embodiment, the first mounting structure and the second mounting structure can also be tenons arranged on both sides of the kettle body and snapped into the corresponding part of the engine compartment. The third mounting structure can be a cubic structure and fixed in the engine compartment by welding. This application does not make any limitation here.

[0128] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An expansion kettle, comprising a kettle body, wherein the kettle body comprises an upper kettle body and a lower kettle body arranged in sequence in a first direction, wherein the upper kettle body and the lower kettle body surround and form a receiving space, wherein: A heat dissipation baffle is arranged in the accommodation space, and the heat dissipation baffle divides the accommodation space into a plurality of chambers independent of each other; The multiple chambers include a first water inlet chamber, a second water inlet chamber, a water outlet chamber, at least one first cooling chamber and at least one second cooling chamber; the upper kettle body is provided with a first water inlet located at the first water inlet chamber and a second water inlet located at the second water inlet chamber, and the lower kettle body is provided with a water outlet located at the water outlet chamber; Wherein, the water outlet chamber is located between the first water inlet chamber and the second water inlet chamber in a second direction, and the second direction is perpendicular to the first direction; and, the at least one first cooling chamber is arranged between the first water inlet chamber and the water outlet chamber, and the at least one second cooling chamber is arranged between the second water inlet chamber and the water outlet chamber, so that the coolant flowing in from the first water inlet can flow through the first water inlet chamber and the at least one first cooling chamber in sequence to the water outlet chamber, and the coolant flowing in from the second water inlet can flow through the second water inlet chamber and the at least one second cooling chamber in sequence and then flow to the water outlet chamber, and finally be discharged through the water outlet.

2. The expansion kettle according to claim 1, characterized in that The heat dissipation baffle comprises a plurality of heat dissipation sub-baffles, one heat dissipation sub-baffle is arranged between any two adjacent chambers in the plurality of chambers, each heat dissipation sub-baffle extends along the first direction and comprises an upper heat dissipation sub-baffle and a lower heat dissipation sub-baffle connected to each other, a side of the upper heat dissipation sub-baffle facing away from the lower heat dissipation sub-baffle is connected to the inner wall surface of the top of the upper kettle body, and a side of the lower heat dissipation sub-baffle facing away from the upper heat dissipation sub-baffle is connected to the inner wall surface of the bottom of the lower kettle body; The heat dissipating sub-partition is arranged between two adjacent chambers that are connected, the upper heat dissipating sub-partition of the heat dissipating sub-partition is provided with a through hole connecting the two adjacent chambers for the coolant to pass through, and the lower heat dissipating sub-partition is provided with an opening connecting the two adjacent chambers for the coolant to pass through; the opening extends in the first direction, and one end of the opening extends to the inner wall surface of the bottom of the lower kettle body, and the other end of the lower heat dissipating sub-partition is close to one side of the upper heat dissipating sub-partition; the through hole and the opening are spaced apart in the first direction.

3. The expansion kettle according to claim 2, characterized in that The plurality of chambers are seven chambers, and the seven chambers are respectively a first chamber, a second chamber, a third chamber, a fourth chamber, a fifth chamber, a sixth chamber and a seventh chamber; Wherein, the first chamber and the second chamber, the fourth chamber and the fifth chamber, and the sixth chamber and the seventh chamber are adjacently arranged in the third direction and communicate with each other; in the second direction, the first partial chamber formed by the first chamber and the second chamber, the third chamber, the second partial chamber formed by the fourth chamber and the fifth chamber, and the third partial chamber formed by the sixth chamber and the seventh chamber are sequentially arranged and communicated in the second direction; the third direction is perpendicular to the first direction and the second direction respectively; Among them, the first chamber constitutes the first water inlet chamber; the at least one first cooling chamber is three first cooling chambers, and the second chamber, the third chamber and the fifth chamber together constitute the three first cooling chambers; the sixth chamber constitutes the second water inlet chamber; the at least one second cooling chamber is two second cooling chambers, the seventh chamber and the fifth chamber together constitute the two second cooling chambers, and the fourth chamber constitutes the water outlet chamber.

4. The expansion kettle according to claim 3, characterized in that In the upper pot body, the second chamber and the upper heat dissipation plate between the first chamber and the third chamber, as well as the upper heat dissipation plate between any two adjacent chambers from the third chamber to the seventh chamber are all provided with the through holes; In the lower pot body, the lower radiator partitions between the first chamber and the second chamber, between the second chamber and the third chamber, between the third chamber and the fifth chamber, between the fourth chamber and the fifth chamber, between the fifth chamber and the seventh chamber, and between the sixth chamber and the seventh chamber are all provided with the openings.

5. The expansion kettle according to claim 3, characterized in that: The upper kettle body is also provided with a kettle mouth and a kettle cover, the kettle mouth passes through the top of the upper kettle body and is located at the third chamber, and the kettle cover is installed at the kettle mouth; the kettle mouth is located at one end of the upper kettle body and is provided with a plurality of reinforcing ribs, and the reinforcing ribs extend on a plane perpendicular to the first direction; and one end of the reinforcing rib is connected to the kettle mouth, and the other end is connected to the heat dissipation baffle or the upper kettle body.

6. The expansion kettle according to claim 5, characterized in that The pot cover comprises a shell, a sealing ring and a pressure relief valve; the shell is connected to the pot mouth; one end of the pressure relief valve is connected to the shell, and the other end is sleeved with the sealing ring.

7. An expansion kettle according to any one of claims 1 to 6, characterized in that: The upper kettle body is provided with a first water inlet interface and a second water inlet interface; the lower kettle body is provided with a water outlet interface; one end of the first water inlet interface is located in the first water inlet chamber and constitutes the first water inlet, and the other end of the first water inlet interface is located outside the kettle body and constitutes a first overflow; one end of the second water inlet interface is located in the second water inlet chamber and constitutes the second water inlet, and the other end of the second water inlet interface is located outside the kettle body and constitutes a second overflow; one end of the water outlet interface is located at the water outlet chamber and constitutes the water outlet; The first water inlet interface and the second water inlet interface are also provided with a copper sleeve sleeved on the end thereof at one end away from the upper kettle body.

8. An expansion kettle according to any one of claims 1 to 6, characterized in that: The lower kettle body also includes a first mounting structure, a second mounting structure and a third mounting structure; the first mounting structure and the second mounting structure are spaced apart on the outer peripheral side of the lower kettle body, and extend in a plane perpendicular to the first direction in a direction away from the lower kettle body; the third mounting structure is fixedly connected to the outer wall surface of the bottom of the lower kettle body, and extends along the first direction.

9. A car, characterized in that: The automobile comprises an engine cooling circuit, a transmission cooling circuit and an expansion kettle as claimed in any one of claims 1 to 8; The first water inlet of the expansion kettle is connected and communicated with the engine cooling circuit; and when the upper kettle body is further provided with a first water inlet interface, the first water inlet is connected with the engine cooling circuit through a first overflow port; The second water inlet of the expansion kettle is connected and communicated with the gearbox cooling circuit; and when the upper kettle body is further provided with a second water inlet interface, the second water inlet is connected with the gearbox cooling circuit through a second overflow port; The water outlet of the expansion kettle is connected and communicated with the engine cooling circuit and the gearbox cooling circuit; and when the lower kettle body is also provided with a water outlet interface, the water outlet is connected with the engine cooling circuit and the gearbox cooling circuit through the water outlet interface.

10. The automobile according to claim 9, characterized in that The engine cooling circuit includes an engine; the gearbox cooling circuit includes a gearbox; and the expansion kettle is higher than the engine and the gearbox in the first direction.

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