Expansion kettle and vehicle

Abstract

The utility model provides an expansion kettle and a vehicle, and belongs to the technical field of expansion kettles. The expansion kettle comprises a shell, a liquid inlet flow channel, a liquid outlet flow channel and a liquid supplementing and exhausting flow channel. Wherein a cavity is formed in the shell; a liquid inlet is formed in the shell so that the liquid inlet flow channel can communicate with the cavity through the liquid inlet. A liquid outlet is formed in the shell so that the liquid outlet flow channel can communicate with the cavity through the liquid outlet. One end of the liquid supplementing and exhausting flow channel is communicated with the liquid inlet flow channel, and the other end of the liquid supplementing and exhausting flow channel is communicated with the liquid outlet flow channel. The liquid supplementing and exhausting flow channel is an arc section which is bent towards the center of the cavity, the liquid supplementing and exhausting flow channel comprises a first arc-shaped side wall and a second arc-shaped side wall, through holes are formed in the first arc-shaped side wall and the second arc-shaped side wall, and the through holes are communicated with the cavity. Therefore, the fluid supplementing and exhausting flow channel in the expansion kettle provided by the embodiment of the utility model adopts the arc section flow channel design, and has a good flow guiding effect on fluid, so that relatively small flow resistance is generated, and noise is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of expansion water jugs, in particular to an expansion water jug and a vehicle. BACKGROUND

[0002] In the thermal management system of an automobile, the expansion water jug serves as an important component, which mainly functions to manage and regulate the coolant in the cooling system, so as to avoid the situation that the pipe is burst due to excessive pressure when the coolant flows in the pipeline.

[0003] During the operation of the engine, the coolant will expand due to heat absorption. The expansion water jug can provide an additional space to accommodate the expanded coolant, so as to prevent the pressure in the system from being too high. By accommodating the expanded coolant, the pressure balance of the thermal management system is maintained, and the components in the thermal management system are prevented from being damaged. In addition, the expansion water jug also has an exhaust function, which helps to separate the bubbles in the cooling system, so as to prevent the bubbles from circulating in the system and affecting the cooling effect.

[0004] However, in the current thermal management system, the exhaust of the expansion water jug is basically dependent on the pressure in the expansion water jug to exhaust the gas from the exhaust port, and the exhaust effect needs to be improved, and the exhaust in the thermal management system is prone to be not smooth. In addition, the expansion water jug is also provided with a plurality of liquid supplement ports, which is prone to turbulent flow and generates a certain noise, and the liquid supplement is not timely. CONTENT OF THE INVENTION

[0005] The present application provides an expansion water jug and a vehicle. The problems of poor exhaust and untimely liquid supplement in the thermal management system of the vehicle are solved, and the exhaust and liquid supplement efficiency of the thermal management system are improved, the operating load of the thermal management system is reduced, and the service life of the components of the thermal management system is improved.

[0006] The first aspect of the present application provides an expansion water jug, comprising:

[0007] a shell, the shell having a cavity therein;

[0008] a liquid inlet, the shell being provided with the liquid inlet, so that the liquid inlet flow channel is connected to the cavity through the liquid inlet;

[0009] a liquid outlet, the shell being provided with the liquid outlet, so that the liquid outlet flow channel is connected to the cavity through the liquid outlet;

[0010] a liquid supplement and exhaust flow channel, one end of the liquid supplement and exhaust flow channel being connected to the liquid inlet flow channel, and the other end of the liquid supplement and exhaust flow channel being connected to the liquid outlet flow channel;

[0011] The liquid replenishment and exhaust flow channel is an arc segment bent toward the center of the chamber. The liquid replenishment and exhaust flow channel includes a first arcuate side wall and a second arcuate side wall. Through holes are opened on the first arcuate side wall and the second arcuate side wall, and the through holes are connected to the chamber.

[0012] The expansion kettle provided in the first aspect of the embodiment of the present application includes a shell, a liquid inlet channel, a liquid outlet channel and a liquid replenishment and exhaust channel. Among them, there is a chamber in the shell. A liquid inlet is provided on the shell so that the liquid inlet channel is connected to the chamber through the liquid inlet. A liquid outlet is provided on the shell so that the liquid outlet channel is connected to the chamber through the liquid outlet. One end of the liquid replenishment and exhaust channel is connected to the liquid inlet channel, and the other end of the liquid replenishment and exhaust channel is connected to the liquid outlet channel. The liquid replenishment and exhaust channel is an arc segment bent toward the center of the chamber, and the liquid replenishment and exhaust channel includes a first arc-shaped side wall and a second arc-shaped side wall. The first arc-shaped side wall and the second arc-shaped side wall are provided with through holes, and the through holes are connected to the chamber. In this way, the liquid replenishment and exhaust channel in the expansion kettle provided in the embodiment of the present application adopts an arc segment channel design, which has a good flow-guiding effect on the fluid, thereby generating a relatively small flow resistance and avoiding noise.

[0013] In a possible embodiment, at least two first through holes are formed on the first arc-shaped side wall, and the first through holes are arranged near the center of the chamber;

[0014] At least one second through hole is formed on the second curved side wall, and the second through hole is located at one end of the second curved side wall close to the liquid outlet channel;

[0015] Furthermore, the diameter of the first arc-shaped side wall is smaller than the diameter of the second arc-shaped side wall.

[0016] In a possible implementation, both the first through hole and the second through hole are waist-shaped holes, and the diameter of the first through hole is larger than the diameter of the second through hole.

[0017] In a possible implementation, the first through hole is opened at the bottom of the housing along the height direction of the first curved side wall, and the second through hole is opened at at least a portion of the second curved side wall along the height direction of the second curved side wall.

[0018] In a possible embodiment, a cover plate structure is further included, and the cover plate structure is fixed to one side of the liquid replenishment and exhaust flow channel;

[0019] A protrusion is protruded from one side of the cover structure toward the liquid replenishment and exhaust flow channel. The cross section of the liquid replenishment and exhaust flow channel in the height direction is the same as the cross section of the liquid inlet flow channel in the radial direction and the cross section of the liquid outlet flow channel in the radial direction.

[0020] In a possible embodiment, the cover plate structure includes two first cover plate side walls, two second cover plate side walls, two first connecting surfaces, and a second connecting surface;

[0021] The first connecting surface connects the first cover plate sidewall and the second cover plate sidewall, so that the first cover plate sidewall, the first connecting surface and the second cover plate sidewall form a stepped structure.

[0022] The second connecting surface connects the two second cover plate sidewalls, so that the second cover plate sidewall and the second connecting surface form a protruding part.

[0023] In a possible implementation, the cover plate structure is provided with a first recess and a second recess. After the first recess is formed, the cover plate structure forms two first cover plate sidewalls arranged oppositely, and the distance between the two first cover plate sidewalls is L1. After the second recess is formed, the cover plate structure forms two second cover plate sidewalls arranged oppositely, and the distance between the two second cover plate sidewalls is L2.

[0024] L1 is greater than L2.

[0025] In a possible implementation, the liquid inlet flow channel and the liquid outlet flow channel are not located at the same horizontal position, so that the liquid supplementing and gas discharging flow channel is inclined.

[0026] The second connecting surface is parallel to the liquid supplementing and gas discharging flow channel, so that the inclination angle of the protruding part is the same as the inclination angle of the liquid supplementing and gas discharging flow channel.

[0027] In a possible implementation, one end of the first cover plate sidewall facing the liquid supplementing and gas discharging flow channel is inclined and connected to the liquid supplementing and gas discharging flow channel by welding.

[0028] The other end of the first cover plate sidewall away from the liquid supplementing and gas discharging flow channel is horizontally arranged.

[0029] The second aspect of the present application provides a vehicle, comprising:

[0030] a thermal management system;

[0031] the above-mentioned expansion water bottle;

[0032] The expansion water bottle is connected to the thermal management system, and the expansion water bottle is used to supplement liquid for the thermal management system and discharge gas in the liquid.

[0033] The vehicle provided by the second aspect of the embodiment of the present application comprises a thermal management system and the above-mentioned expansion water bottle. The expansion water bottle is connected to the thermal management system, and the expansion water bottle is used to supplement liquid for the thermal management system and discharge gas in the liquid. In this way, the through hole arranged in the expansion water bottle can play a role in rapid gas discharge when the flow rate is large, and can also achieve good gas discharge effect when there are small bubbles after the thermal management system runs for a period of time.

[0034] It should be understood that the second aspect of the present application corresponds to the technical solution of the first aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation are similar, which will not be repeated here.

[0035] In addition to the technical problems solved by the present application, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by an expansion kettle and a vehicle provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are only part of the embodiments of the present application. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 A schematic diagram of the structure of an expansion kettle provided in an embodiment of the present application;

[0038] Figure 2 A schematic structural diagram of the lower shell of the expansion kettle provided in an embodiment of the present application;

[0039] Figure 3 A schematic diagram of a portion of the structure of an expansion kettle provided in an embodiment of the present application;

[0040] Figure 4 A partial structural cross-sectional view of an expansion kettle provided in an embodiment of the present application;

[0041] Figure 5 A schematic structural diagram of the cover structure of the expansion kettle provided in an embodiment of the present application;

[0042] Figure 6 A schematic structural diagram of the cover structure of the expansion kettle provided in an embodiment of the present application from another angle;

[0043] Figure 7 This is a schematic diagram of an exploded view of the expansion kettle provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 100-Expansion kettle;

[0046] 200 - housing; 210 - chamber; 220 - liquid inlet; 230 - liquid outlet; 240 - separator; 241 - hole; 250 - cavity; 260 - upper housing; 270 - lower housing;

[0047] 300-liquid inlet channel;

[0048] 400- liquid outlet channel;

[0049] 500 - fluid replenishment and exhaust flow channel; 510 - first curved side wall; 511 - first through hole; 520 - second curved side wall; 521 - second through hole; 530 - through hole;

[0050] 600 - cover plate structure; 610 - raised portion; 620 - first cover plate side wall; 630 - second cover plate side wall; 640 - first connecting surface; 650 - second connecting surface; 660 - first groove; 670 - second groove;

[0051] 700-Liquid level sensor;

[0052] 800-Shock-absorbing pads. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] As described in the background, in current thermal management systems, venting of the expansion kettle relies primarily on the pressure within the kettle to expel gas through the vent. This venting efficiency needs to be improved and can easily lead to poor venting within the thermal management system. Furthermore, the expansion kettle has numerous refill ports, which can easily cause turbulence and generate noise, and also pose the problem of delayed refilling.

[0055] In response to the above technical problems, the first aspect of the embodiment of the present application provides an expansion kettle. The expansion kettle includes a shell, a liquid inlet channel, a liquid outlet channel, and a liquid replenishment and exhaust channel. The shell has a chamber. A liquid inlet is provided on the shell so that the liquid inlet channel is connected to the chamber through the liquid inlet. A liquid outlet is provided on the shell so that the liquid outlet channel is connected to the chamber through the liquid outlet. One end of the liquid replenishment and exhaust channel is connected to the liquid inlet channel, and the other end of the liquid replenishment and exhaust channel is connected to the liquid outlet channel. The liquid replenishment and exhaust channel is an arc segment bent toward the center of the chamber, and the liquid replenishment and exhaust channel includes a first arc-shaped side wall and a second arc-shaped side wall. The first arc-shaped side wall and the second arc-shaped side wall are provided with through holes, and the through holes are connected to the chamber. In this way, the liquid replenishment and exhaust channel in the expansion kettle provided in the embodiment of the present application adopts an arc segment channel design, which has a good flow-guiding effect on the fluid, thereby generating relatively small flow resistance and avoiding noise.

[0056] A second aspect of the present application provides a vehicle. The vehicle includes a thermal management system and the aforementioned expansion kettle. The expansion kettle is connected to the thermal management system and is used to replenish liquid in the thermal management system and to exhaust gas from the liquid. Thus, the through-holes provided in the expansion kettle enable rapid exhaust at high flow rates, and also achieve good exhaust efficiency even when small bubbles are present after the thermal management system has been operating for a period of time.

[0057] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions 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 only 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 ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] The present invention provides an expansion kettle and a vehicle. These solutions address the issues of poor exhaust and untimely fluid replenishment within a vehicle's thermal management system, thereby improving the exhaust and fluid replenishment efficiency of the thermal management system, reducing the operating load of the thermal management system and increasing the service life of the thermal management system components. The specific structures of the expansion kettle and vehicle provided by the present invention are described below, in conjunction with the accompanying drawings.

[0059] refer to Figure 1 as well as Figure 2 In a first aspect, an embodiment of the present application provides an expansion kettle 100. The expansion kettle 100 may include a housing 200, a liquid inlet channel 300, a liquid outlet channel 400, and a liquid replenishment and exhaust channel 500. The housing 200 may include a chamber 210, in which both liquid and gas may be located. In a possible embodiment, as Figure 1 As shown, a liquid inlet 220 may be provided on one side of the shell 200, so that the liquid inlet channel 300 can be connected to the chamber 210 through the liquid inlet channel 220, and the liquid can enter the shell 200 through the liquid inlet channel 300. Correspondingly, a liquid outlet 230 may be provided on the other side of the shell 200, so that the liquid outlet channel 400 can be connected to the chamber 210 through the liquid outlet channel 230. After the liquid enters the shell 200 through the liquid inlet channel 300, it can flow out of the expansion kettle 100 through the liquid outlet channel 400. In one possible implementation, the liquid inlet channel 300 and the liquid outlet channel 400 can both be cylindrical structures to facilitate the flow of liquid. It is understandable that the sizes of the liquid inlet channel 300 and the liquid outlet channel 400 can be the same, and the embodiment of the present application is not limited thereto.

[0060] It is understandable that if Figure 2 As shown, one end of the liquid replenishment exhaust channel 500 can be connected to the liquid inlet channel 300, and the other end of the liquid replenishment exhaust channel 500 can be connected to the liquid outlet channel 400. In one possible embodiment, the liquid replenishment exhaust channel 500 can be set as a circular arc segment structure, and the liquid replenishment exhaust channel 500 can be bent toward the center of the chamber 210. In this way, the liquid replenishment exhaust channel 500 adopts a circular arc segment channel design, which can have a good flow guiding effect on the fluid, thereby generating a relatively small flow resistance and avoiding noise. In an embodiment of the present application, the liquid replenishment exhaust channel 500 may include a first curved side wall 510 and a second curved side wall 520. In one embodiment, a through hole 530 can be opened on the first curved side wall 510 and the second curved side wall 520, and each through hole 530 is connected to the chamber 210. In this way, after the liquid in the liquid inlet channel 300 carries the gas into the chamber 210 , the gas can be discharged through the through holes 530 on the first curved side wall 510 and the second curved side wall 520 , thereby having a good exhaust function.

[0061] refer to Figure 3 as well as Figure 4 Based on the above embodiment, a first through hole 511 may be formed on the first curved sidewall 510, and a second through hole 521 may be formed on the second curved sidewall 520. If the diameter of the first curved sidewall 510 is smaller than the diameter of the second curved sidewall 520, the second curved sidewall 520 is located outside the first curved sidewall 510, and the first curved sidewall 510 is closer to the center of the chamber 210. In one possible embodiment, the number of first through holes 511 may be at least two, and the number of second through holes 521 may be at least one. The embodiment of the present application does not limit the number of first through holes 511 and second through holes 521. In the embodiment of the present application, taking the example of two first through holes 511 and one second through hole 521, the two first through holes 511 may be arranged side by side on the first curved sidewall 510, and both first through holes 511 may be arranged near the center of the chamber 210. Alternatively, the second through hole 521 can be located at one end of the second curved sidewall 520 near the liquid outlet channel 400. It is understood that when the liquid flow rate is large, because the density of the liquid is greater than the density of the gas, under the action of centrifugal force, a large amount of liquid is thrown onto the second curved sidewall 520 located on the outside, and the bubbles are squeezed onto the first curved sidewall 510 located on the inside. Since the first curved sidewall 510 is provided with two first through holes 511, it can achieve a rapid exhaust effect at high flow rates. When the liquid flow rate is small, a large number of bubbles can be discharged through the second through hole 521 on the second curved sidewall 520. Therefore, the second through hole 521 is provided at the end of the second curved sidewall 520 near the liquid outlet channel 400, which is more conducive to exhaust.

[0062] Continue to refer Figure 3 as well as Figure 4 , based on the above embodiments, in one possible implementation, the first through hole 511 and the second through hole 521 can both be waist-shaped holes, usually in an elliptical shape or a shape similar to the waist curve of a person. The embodiment of the present application does not limit the shapes of the first through hole 511 and the second through hole 521. In the embodiment of the present application, the diameter of the first through hole 511 can be larger than the diameter of the second through hole 521. In this way, when the thermal management system starts working, a large number of bubbles may exist in the system. Since the cross-sectional dimensions of the two first through holes 511 are large, the large bubbles will preferentially be discharged through the first through hole 511 to the rehydration and exhaust flow channel 500. After the thermal management system has been running for a period of time, there may still be some small bubbles in the system. At this time, most of the small bubbles can be discharged through the second through hole 521 to the rehydration and exhaust flow channel 500.

[0063] Continue to refer Figure 3 as well as Figure 4 Based on the above embodiment, in one possible implementation, the first through hole 511 can be opened along the height of the first curved side wall 510, thereby allowing the first through hole 511 to be opened at the bottom of the housing 200. This increases the size of the first through hole 511 and improves the refill and exhaust efficiency of the expansion kettle 100. Alternatively, the second through hole 521 can be opened along the height of the second curved side wall 520, allowing the second through hole 521 to open at least a portion of the second curved side wall 520. In one possible implementation, the second through hole 521 can be opened at half the height of the second curved side wall 520, not reaching the bottom of the housing 200. In this way, when the thermal management system is operating relatively smoothly, the gas is located at the top and the liquid is located at the bottom because the density of the liquid is greater than that of the gas. As a result, the gas can be discharged into the refill and exhaust channel 500 along the second through hole 521, achieving a certain exhaust effect. The second arc-shaped side wall 520 between the second through hole 521 and the bottom of the shell 200 can block a large amount of liquid from flowing out, prevent kinetic energy loss, and also has a certain guiding effect.

[0064] It is understandable that if the second through hole 521 is opened to the bottom of the shell 200 along the opening direction of the second curved side wall 520, the liquid at the bottom may be lost outside the liquid replenishment and exhaust channel 500 due to centrifugal force, which may easily cause liquid churning, turbulence, noise, etc., thereby reducing the liquid replenishment and exhaust efficiency.

[0065] refer to Figure 2On the basis of the above-mentioned embodiments, the inflatable water kettle 100 can further comprise a cover plate structure 600. The cover plate structure 600 can be fixed to one side of the liquid supplementing and air discharging channel 500. In the embodiments of the present application, the cover plate structure 600 can be fixed to the top of the liquid supplementing and air discharging channel 500, so that the cover plate structure 600 covers the liquid supplementing and air discharging channel 500. In a possible implementation manner, as shown in FIG. 6, the side of the cover plate structure 600 facing the liquid supplementing and air discharging channel 500 can be provided with a protruding part 610 protruding from the cover plate structure 600. Figure 3 As can be understood, in the embodiments of the present application, since the liquid inlet channel 300 and the liquid outlet channel 400 adopt a cylindrical structure, the cross section of the liquid inlet channel 300 and the liquid outlet channel 400 in the radial direction is circular. Thus, the side of the cover plate structure 600 provided with the protruding part 610 is in communication with the top of the liquid inlet channel 300 and the liquid outlet channel 400 respectively, so that the height distance between the side of the cover plate structure 600 provided with the protruding part 610 and the bottom of the liquid supplementing and air discharging channel 500 is the same as the diameter of the liquid inlet channel 300 and the liquid outlet channel 400. In addition, the width between the first arc-shaped side wall 510 and the second arc-shaped side wall 520 of the liquid supplementing and air discharging channel 500 can also be the same as the diameter of the liquid inlet channel 300 and the liquid outlet channel 400. Further, in the case of the same height and width, the cross section of the liquid supplementing and air discharging channel 500 in the height direction is the same as the cross section of the liquid inlet channel 300 in the radial direction and the cross section of the liquid outlet channel 400 in the radial direction. During the process that the liquid flows from the liquid inlet channel 300, through the liquid supplementing and air discharging channel 500, and then through the liquid outlet channel 400, since the cross section area of the flow channel through which the liquid flows does not change, the problem of turbulence and the like can be avoided, so as to affect the air discharging effect.

[0066] Reference Figure 5 and Figure 6On the basis of the above embodiment, the cover plate structure 600 may further include a first cover plate side wall 620, a second cover plate side wall 630, a first connecting surface 640, and a second connecting surface 650. In one possible embodiment, the number of the first cover plate side wall 620, the second cover plate side wall 630, and the first connecting surface 640 may be at least two, which is not limited in the embodiment of the present application. In the embodiment of the present application, an example is given with the number of the first cover plate side wall 620, the second cover plate side wall 630, and the first connecting surface 640 being two respectively. The two first cover plate side walls 620 may be arranged opposite to each other, and the two second cover plate side walls 630 may also be arranged opposite to each other. Each first cover plate side wall 620 and the second cover plate side wall 630 can be connected by a first connecting surface 640, and the first connecting surface 640 is arranged at a certain angle to the first cover plate side wall 620 and the second cover plate side wall 630, respectively, so that the first cover plate side wall 620, the first connecting surface 640 and the second cover plate side wall 630 are arranged in a stepped shape, forming a stepped structure. Alternatively, the two second cover plate side walls 630 can be connected by a second connecting surface 650, so that the second cover plate side walls 630 and the second connecting surface 650 form a raised portion 610. It can be understood that the end of the second connecting surface 650 facing the liquid inlet channel 300 can be connected to the top of the liquid inlet channel 300, and the end of the second connecting surface 650 facing the liquid outlet channel 400 can be connected to the top of the liquid outlet channel 400, so that the height distance between the second connecting surface 650 and the bottom of the liquid replenishment and exhaust channel 500 is the same as the diameter size of the liquid inlet channel 300 and the liquid outlet channel 400.

[0067] Continue to refer Figure 6 Based on the above embodiment, in one possible implementation, a first groove 660 and a second groove 670 may be formed in the cover plate structure 600. It is understood that after the first groove 660 is formed in the cover plate structure 600, two first cover plate side walls 620 are formed, and the distance between the two first cover plate side walls 620 may be L1. Correspondingly, after the second groove 670 is formed in the cover plate structure 600, two second cover plate side walls 630 are formed, and the distance between the two second cover plate side walls 630 may be L2. In particular, L1 may be greater than L2, so that the first cover plate side wall 620, the first connecting surface 640, and the second cover plate side wall 630 are arranged in a stepped shape, forming a stepped structure.

[0068] It is understandable that if Figure 3As shown, the liquid inlet flow channel 300 and the liquid outlet flow channel 400 can not be at the same horizontal position, so that the liquid supplement exhaust flow channel 500 is arranged in an inclined manner. In one possible implementation, the height of the liquid inlet flow channel 300 can be higher than that of the liquid outlet flow channel 400. In another possible implementation, the height of the liquid outlet flow channel 400 can be higher than that of the liquid inlet flow channel 300. Of course, in some other embodiments, the liquid inlet flow channel 300 and the liquid outlet flow channel 400 can also be at the same horizontal position, which is not limited in the embodiments of the present application. In the embodiments of the present application, taking the case that the height of the liquid inlet flow channel 300 is higher than that of the liquid outlet flow channel 400 as an example, the end of the liquid supplement exhaust flow channel 500 towards the liquid inlet flow channel 300 is higher than the end of the liquid supplement exhaust flow channel 500 towards the liquid outlet flow channel 400, so that the liquid supplement exhaust flow channel 500 has a certain inclination angle. The second connecting surface 650 can be arranged in parallel to the liquid supplement exhaust flow channel 500, so that the inclination angle of the protruding portion 610 and the inclination angle of the liquid supplement exhaust flow channel 500 are the same. In one possible implementation, the second connecting surface 650 can be arranged as a circular arc surface, and can also have a certain flow guiding effect to generate relatively small flow resistance to reduce the generation of turbulent phenomenon.

[0069] With reference to the above embodiments, Figure 3 On the basis of the above embodiments, in one possible implementation, the end of the first cover plate side wall 620 towards the liquid supplement exhaust flow channel 500 is arranged in an inclined manner in the height direction, and the end of the first cover plate side wall 620 towards the liquid supplement exhaust flow channel 500 can also have the same inclination angle as the inclination angle of the protruding portion 610 and the inclination angle of the liquid supplement exhaust flow channel 500, so that the end of the first cover plate side wall 620 towards the liquid supplement exhaust flow channel 500 is adapted to the liquid supplement exhaust flow channel 500. In the embodiments of the present application, the first cover plate side wall 620 can be welded to the liquid supplement exhaust flow channel 500. In this way, the entire cover plate structure 600 and the liquid supplement exhaust flow channel 500 can be connected as an integrated structure. It can be understood that when the liquid flow is large, the welding of the cover plate structure 600 and the liquid supplement exhaust flow channel 500 as an integrated structure can avoid the liquid level in the expansion water tank 100 from being turbulent, so as to generate the gas rolling phenomenon in the thermal management system, and thus affect the heat exchange efficiency of the thermal management system. In addition, the end of the first cover plate side wall 620 away from the liquid supplement exhaust flow channel 500 can be arranged in a horizontal manner. In this way, the installation of the cover plate structure 600 can be facilitated.

[0070] With reference to the above embodiments, Figure 2Based on the above embodiment, the housing 200 may further include a plurality of partitions 240. Based on the above embodiment, in one possible implementation, the number of partitions 240 may be multiple, and the present embodiment does not limit the number of partitions 240. In the present embodiment, the plurality of partitions 240 may divide the housing 200 into a plurality of cavities 250. Furthermore, the partitions 240 may further include holes 241, so that the plurality of cavities 250 are interconnected through the holes 241, thereby facilitating the flow of liquid.

[0071] Continue to refer Figure 1 Based on the above embodiment, the housing 200 may further include an upper housing 260 and a lower housing 270. In this embodiment, the liquid inlet 220 and the liquid outlet 230 are both provided in the lower housing 270. In addition, the cover structure 600 may also be located in the lower housing 270.

[0072] refer to Figure 7 Based on the above embodiment, the expansion kettle 100 may further include a liquid level sensor 700 and a shock-absorbing pad 800. One end of the liquid level sensor 700 may be fixed to the sidewall of one of the cavities 250, while the other end of the liquid level sensor 700 may be located within the chamber 210. It is understood that the liquid level sensor 700 can be used to generate an alarm when the liquid within the housing 200 reaches its lowest point. The shock-absorbing pad 800 may be located at the bottom of the lower housing 270 and can be used to support the entire housing 200.

[0073] In a second aspect, an embodiment of the present application provides a vehicle (not shown in the figure). The vehicle may include a thermal management system (not shown in the figure) and the above-mentioned expansion kettle 100. The expansion kettle 100 can be connected to the thermal management system, so that the expansion kettle 100 can be used to replenish liquid for the thermal management system and discharge gas from the liquid. In this way, when the thermal management system is in operation, the first through hole 511 provided in the expansion kettle 100 can achieve a rapid exhaust effect at a large flow rate. After the thermal management system has been running for a period of time and some small bubbles exist, the second through hole 521 provided in the expansion kettle 100 can also achieve a good exhaust effect.

[0074] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0075] It should be noted that phrases such as "in a specific implementation," "in some embodiments," "in this embodiment," and "exemplarily" mentioned in the specification indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0076] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0077] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0078] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The thermal management system may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0079] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. An expansion kettle, characterized in that: include: a housing having a chamber therein; A liquid inlet channel, wherein the shell is provided with a liquid inlet so that the liquid inlet channel is connected to the chamber through the liquid inlet; A liquid outlet channel, wherein the shell is provided with a liquid outlet so that the liquid outlet channel is connected to the chamber through the liquid outlet; a liquid-infusion and exhaust flow channel, one end of which is connected to the liquid inlet flow channel, and the other end of which is connected to the liquid outlet flow channel; The liquid replenishment and exhaust flow channel is an arc segment bent toward the center of the chamber, and the liquid replenishment and exhaust flow channel includes a first arcuate side wall and a second arcuate side wall. Through holes are opened on the first arcuate side wall and the second arcuate side wall, and the through holes are connected to the chamber.

2. The expansion kettle according to claim 1, characterized in that At least two first through holes are formed on the first arc-shaped side wall, and the first through holes are arranged near the center of the chamber; At least one second through hole is formed on the second curved side wall, and the second through hole is located at one end of the second curved side wall close to the liquid outlet channel; The diameter of the first arc-shaped side wall is smaller than the diameter of the second arc-shaped side wall.

3. The expansion kettle according to claim 2, characterized in that The first through hole and the second through hole are both waist-shaped holes, and the diameter of the first through hole is larger than the diameter of the second through hole.

4. The expansion kettle according to claim 2, characterized in that The first through hole is opened at the bottom of the housing along the height direction of the first arc-shaped side wall, and the second through hole is opened at at least a portion of the second arc-shaped side wall along the height direction of the second arc-shaped side wall.

5. The expansion kettle according to any one of claims 1 to 4, characterized in that: It also includes a cover plate structure, which is fixed to one side of the liquid replenishment and exhaust flow channel; The cover structure is provided with a protruding portion on one side facing the liquid replenishment and exhaust flow channel, and the cross-section of the liquid replenishment and exhaust flow channel in the height direction is the same as the cross-section of the liquid inlet flow channel in the radial direction and the cross-section of the liquid outlet flow channel in the radial direction.

6. The expansion kettle according to claim 5, characterized in that The cover plate structure includes two first cover plate side walls, two second cover plate side walls, two first connecting surfaces and a second connecting surface; Each of the first cover plate side walls and the second cover plate side walls are connected via the first connecting surface, so that the first cover plate side wall, the first connecting surface and the second cover plate side wall form a step structure; The two second cover plate side walls are connected via the second connecting surface, so that the second cover plate side walls and the second connecting surface form the protrusion.

7. The expansion kettle according to claim 6, characterized in that A first groove and a second groove are formed in the cover plate structure. After the first groove is formed, two first cover plate side walls are formed opposite to each other. The distance between the two first cover plate side walls is L1. After the second groove is formed, two second cover plate side walls are formed opposite to each other. The distance between the two second cover plate side walls is L2. The L1 is greater than the L2.

8. The expansion kettle according to claim 7, characterized in that The liquid inlet flow channel and the liquid outlet flow channel are not at the same horizontal position, so that the liquid replenishment and exhaust flow channel is arranged obliquely; The second connecting surface is arranged parallel to the liquid-infusing and exhausting flow channel, so that the inclination angle of the protrusion is the same as the inclination angle of the liquid-infusing and exhausting flow channel.

9. The expansion kettle according to claim 8, characterized in that The side wall of the first cover plate is tilted toward one end of the liquid replenishment and exhaust flow channel and is welded to the liquid replenishment and exhaust flow channel; The first cover plate side wall is horizontally arranged at one end facing away from the liquid replenishment and exhaust flow channel.

10. A vehicle, characterized in that: include: Thermal management system; The expansion kettle according to any one of claims 1 to 9; The expansion kettle is connected to the thermal management system, and is used to replenish liquid for the thermal management system and discharge gas from the liquid.

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