Expansion kettle, vehicle thermal management system with expansion kettle and vehicle
By using the cap press and seal of the flow guide assembly in the expansion kettle, the liquid surface churning and noise problems are solved and the ride experience is improved.
Patent Information
- Application Number
- CN202421145448.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
In the thermal management system of new energy vehicles, due to the existence of multiple liquid circuits, multiple channels may be rehydrated simultaneously, resulting in liquid surface churning and noise, affecting the driving experience.
An expansion water bottle was designed, using a flow guide assembly including a cover press and a sealing body, which floats and seals the flow guide holes in the coolant through the sealing body to achieve one-way flow of the liquid replenishment and exhaust paths to avoid reflux collision and tumbling. .
It effectively eliminates the churning and whirlpooling phenomenon in the expansion kettle, reduces noise, and improves the user's ride experience.
Smart Images
Figure CN222298270U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle thermal management systems, and specifically discloses an expansion kettle and a vehicle thermal management system and a vehicle having the same. Background Art
[0002] This section only involves technical content related to this application, which is not necessarily disclosed prior art.
[0003] In the related art, an expansion kettle is a component in a vehicle thermal management system, specifically a container for compensation liquid and exhaust gas of the vehicle thermal management system.
[0004] At present, new energy vehicles are developing rapidly. Compared with traditional fuel vehicles, their thermal management systems need to meet the needs of more working conditions, such as cooling of battery modules, cooling of motor modules, cooling and heating of warm air systems, etc.; because there are multiple liquid circuits, when the thermal management system is working, the expansion kettle may have multiple channels for replenishing water at the same time. If the pressures in each circuit are different, the liquid level in the expansion kettle will surge and produce vortices, thereby making noise and affecting the driving experience. Summary of the invention
[0005] The purpose of this application is to solve at least part of the technical problems involved in the above content. Specifically, the purpose is achieved through the following technical solutions:
[0006] In a first aspect, the present application provides an expansion kettle, which includes a kettle body and a guide assembly; the upper side of the kettle body is provided with an exhaust port, the interior of the kettle body is provided with a plurality of chambers, the plurality of chambers are all connected to the exhaust port, and the lower sides of the plurality of chambers are respectively provided with liquid filling ports; the guide assembly is arranged in at least part of the chamber, and the guide assembly is located between the exhaust port and the liquid filling port; the guide assembly includes a cover pressing member and a sealing body, the cover pressing member is connected to the inner wall of the chamber, and the cover pressing member has a guide hole, the sealing body is arranged below the cover pressing member, and the sealing body can block the guide hole; wherein, the kettle body is filled with coolant, the liquid level of the coolant is at least higher than the cover pressing member, the sealing body floats between the guide hole and the liquid filling port, and the density of the coolant vapor ρ 1 <Density of the seal body ρ 2 <Coolant density ρ 3 .
[0007] Specifically, the expansion kettle provided by the present application has at least the following advantages:
[0008] In the present application, a flow guide assembly is provided in part or all of the chamber of the expansion kettle, the flow guide assembly divides the chamber into upper and lower parts by a cover pressing piece, and the flow guide assembly floats in the coolant through a sealing body to seal the flow guide holes on the cover pressing piece.
[0009] Furthermore, due to the density of coolant vapor ρ 1 <Density of the seal body ρ 2 <Coolant density ρ 3 Therefore, under normal working conditions, the hydraulic pressures on the upper and lower sides of the guide hole are basically the same, and the seal floats up and blocks the guide hole; when the external system needs to replenish coolant, the hydraulic pressure on the upper side of the guide hole is greater than the hydraulic pressure on the lower side, so that the coolant rushes through the seal from above and flows to the refill port below, thereby replenishing the external system; when the external system releases heat, causing the coolant to evaporate and turn into steam, the coolant vapor floats to the top of the seal and squeezes the seal, thereby converging and reaching a certain air pressure before being discharged from the exhaust port above.
[0010] The present application cooperates with the cover pressing member and the sealing body of the guide component to make the liquid replenishment path and the exhaust path respectively become one-way flow, thereby avoiding backflow collision, eliminating the churning and vortex phenomenon in the expansion kettle, reducing noise emission, and improving the user's riding experience.
[0011] In some embodiments, the guide assembly further includes a spoiler, which is vertically distributed above the cover pressing member; there are multiple spoilers, and the multiple spoilers are arranged around the guide hole.
[0012] In some embodiments, the multiple chambers include a battery cooling system refilling chamber, a motor cooling system refilling chamber and an air conditioning system refilling chamber; the battery cooling system refilling chamber and the motor cooling system refilling chamber are arranged in parallel, and the battery cooling system refilling chamber and the motor cooling system refilling chamber are respectively provided with a guide component; the air conditioning system refilling chamber is distributed on one side of the battery cooling system refilling chamber and the motor cooling system refilling chamber, and a wave-breaking pressure plate is provided in the air conditioning system refilling chamber, the wave-breaking pressure plate has a connecting hole, the aperture of the connecting hole is smaller than the aperture of the guide hole, and the connecting hole and the refilling port of the air conditioning system refilling chamber are staggered in the up and down direction.
[0013] In some embodiments, a liquid replenishing tube is provided on the outer wall of the kettle body, a partition is provided inside the liquid replenishing tube, and the interior of the liquid replenishing tube is divided into at least a first passage, a second passage and a third passage which are isolated from each other by the partition; the first passage is connected to the liquid replenishing port of the liquid replenishing chamber of the battery cooling system, the second passage is connected to the liquid replenishing port of the liquid replenishing chamber of the motor cooling system, and the third passage is connected to the liquid replenishing port of the liquid replenishing chamber of the air conditioning system.
[0014] In some embodiments, the battery cooling system refilling chamber and the motor cooling system refilling chamber are spaced apart, and the air conditioning system refilling chamber extends between the battery cooling system refilling chamber and the motor cooling system refilling chamber; the bottom wall of the expansion kettle has an opening area, the opening area spans the battery cooling system refilling chamber, the motor cooling system refilling chamber and the air conditioning system refilling chamber, and the refilling ports of the battery cooling system refilling chamber, the motor cooling system refilling chamber and the air conditioning system refilling chamber are all opened in the opening area, and the opening area is connected to the refilling tube.
[0015] In some embodiments, the cover pressing member protrudes upward around the guide hole and forms a curved limiting groove, and the sealing body is a spherical structure, and the top of the spherical structure abuts against the curved limiting groove.
[0016] In some embodiments, the density of the coolant vapor is 1 0.5kg / m 3 Up to 0.8kg / m 3 , the density of the seal body ρ 2 0.9kg / m 3 Up to 0.95kg / m 3 , the density of the coolant ρ 3 1kg / m 3 Up to 1.2kg / m 3 .
[0017] In some embodiments, the top of the kettle body has an identification area, the identification area is provided with a maximum filling line and a minimum filling line, and the maximum filling line is located above the minimum filling line; the liquid level of the coolant is located between the maximum filling line and the minimum filling line; the kettle body is a transparent structure at least in the identification area.
[0018] In a second aspect, the present application further provides a vehicle thermal management system, the vehicle thermal management system comprising the expansion kettle in the first aspect.
[0019] In a third aspect, the present application also provides a vehicle, the vehicle comprising the vehicle thermal management system in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Specifically, the accompanying drawings are described as follows:
[0022] Figure 1 It is a first axonometric view of the expansion kettle according to the embodiment of the present application;
[0023] Figure 2 It is a second axonometric view of the expansion kettle according to the embodiment of the present application;
[0024] Figure 3 It is a third axonometric view of the expansion kettle according to the embodiment of the present application;
[0025] Figure 4An exploded view of the expansion kettle described in an embodiment of the present application;
[0026] Figure 5 It is a side sectional view of the expansion kettle in the liquid replenishing condition described in the embodiment of the present application;
[0027] Figure 6 It is a side sectional view of the expansion kettle in the exhaust condition described in the embodiment of the present application;
[0028] Figure 7 This is a schematic diagram of the connection between the lower housing and the flow guide assembly described in an embodiment of the present application;
[0029] Figure 8 This is a schematic diagram of the connection between the upper shell and the guide assembly described in the embodiment of the present application;
[0030] Fig. 9 This is a first structural schematic diagram of the lower housing according to an embodiment of the present application;
[0031] Fig.10 This is a second structural schematic diagram of the lower shell described in an embodiment of the present application.
[0032] Specifically, the reference numerals are described as follows:
[0033] 100, expansion kettle; 110, kettle body; 111, upper shell; 112, lower shell; 120, guide assembly; 121, cover pressure piece; 122, sealing body; 123, spoiler; 130, refilling pipe; 140, exhaust pipe; 150, filling cap; 160, wave-breaking pressure plate; 161, branch plate; a, battery cooling system refilling chamber; b, motor cooling system refilling chamber; c, air conditioning system refilling chamber; d, guide hole; e, first passage; f, second passage; g, third passage; h, opening area; i, curved limit groove; j, maximum filling line; k, minimum filling line; l, marking area; m, filling port; n, connecting hole. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0035] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", and "have" are inclusive and therefore specify the presence of stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0036] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. In addition, in the description of this application, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "outer", "end", "upper", "lower", "high", "lower", "inner", "middle", "side", "axial", "first direction", "second direction", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the figure. For example, if the mechanism in the figure flips, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.
[0038] Combine the following Figures 1 to 10 A specific embodiment of the expansion kettle is described in detail.
[0039] Reference Figures 1 to 7In a first aspect, the present application provides an expansion kettle 100, which includes a kettle body 110 and a guide assembly 120; the kettle body 110 has an exhaust port on its upper side, and the kettle body 110 has multiple chambers inside, all of which are connected to the exhaust port, and the lower sides of the multiple chambers are respectively provided with liquid replenishment ports; the guide assembly 120 is arranged in at least part of the chamber, and the guide assembly 120 is located between the exhaust port and the liquid replenishment port; the guide assembly 120 includes a cover pressing member 121 and a sealing body 122, the cover pressing member 121 is connected to the inner wall of the chamber, and the cover pressing member 121 has a guide hole d, the sealing body 122 is arranged below the cover pressing member 121, and the sealing body 122 can block the guide hole d; wherein, the kettle body 110 is filled with coolant, the liquid level of the coolant is at least higher than the cover pressing member 121, the sealing body 122 floats between the guide hole d and the liquid replenishment port, and the density of the coolant vapor is ρ 1 <Density ρ of the sealing body 122 2 <Coolant density ρ 3 .
[0040] Specifically, the expansion kettle 100 provided by the present application has at least the following advantages:
[0041] In the present application, the expansion kettle 100 is provided with a guide assembly 120 in part or all of the chamber, and the guide assembly 120 divides the chamber into upper and lower parts by a cover pressing piece 121, and the guide assembly 120 floats in the coolant through a sealing body 122 to seal the guide hole d on the cover pressing piece 121.
[0042] Further, refer to Figure 5 and Figure 6 , due to the density of coolant vapor ρ 1 <Density ρ of the sealing body 122 2 <Coolant density ρ 3 Therefore, under normal working conditions, the hydraulic pressures on the upper and lower sides of the guide hole d are basically the same, and the sealing body 122 floats up and blocks the guide hole d; when the external system needs to replenish coolant, the hydraulic pressure on the upper side of the guide hole d is greater than the hydraulic pressure on the lower side, so that the coolant rushes through the seal 122 from the top and flows to the liquid replenishment port below, thereby replenishing the external system; when the external system releases heat, causing the coolant to evaporate and turn into steam, the coolant vapor floats to the top of the seal 122 and squeezes the seal 122, thereby converging and reaching a certain air pressure before being discharged from the exhaust port above.
[0043] The present application cooperates with the cover pressing member 121 and the sealing body 122 of the guide component 120 to make the liquid replenishment path and the exhaust path respectively become unidirectional flow, thereby avoiding backflow collision, eliminating the churning and vortex phenomenon in the expansion kettle 100, reducing noise emission, and improving the user's riding experience.
[0044] In some embodiments, reference Figure 5 , Figure 6 and Figure 8 The flow guide assembly 120 further includes a spoiler 123, which is vertically distributed above the cover pressing member 121; the spoiler 123 has a plurality of spoilers, which are arranged around the flow guide hole d.
[0045] In this embodiment, the spoiler 123 can further block and limit the tiny liquid tumbling and vortex generated above the cover pressing member 121, thereby achieving a better effect of removing noise and further improving the user experience.
[0046] In some embodiments, reference Figure 7 and Fig. 9 The multiple chambers include a battery cooling system refilling chamber a, a motor cooling system refilling chamber b and an air conditioning system refilling chamber c; the battery cooling system refilling chamber a and the motor cooling system refilling chamber b are arranged in parallel, and the battery cooling system refilling chamber a and the motor cooling system refilling chamber b are respectively provided with a guide component 120; the air conditioning system refilling chamber c is distributed on one side of the battery cooling system refilling chamber a and the motor cooling system refilling chamber b, and the air conditioning system refilling chamber c is provided with a wave-proof pressure plate 160, the wave-proof pressure plate 160 has a connecting hole n, the aperture of the connecting hole n is smaller than the aperture of the guide hole d, and the connecting hole n and the refilling port of the air conditioning system refilling chamber c are staggered in the up and down direction.
[0047] In this embodiment, the position distribution between the battery cooling system liquid filling chamber a, the motor cooling system liquid filling chamber b and the air conditioning system liquid filling chamber c makes the structure more compact.
[0048] In addition, the heat exchange between the battery cooling system and the motor cooling system is relatively frequent, so the battery cooling system replenishing chamber a and the motor cooling system replenishing chamber b are respectively provided with a guide component 120 to avoid violent liquid churning and vortex phenomena; while the air-conditioning system, relatively speaking, has a relatively mild heat exchange, and only needs to set up a wave-breaking pressure plate 160 to suppress liquid churning. Moreover, this setting method can also reduce space occupancy and has a reasonable structural design.
[0049] It should be noted that the aperture of the connecting hole n is smaller than that of the guide hole d to avoid excessive backflow and reduce liquid churning and vortex phenomena; the connecting hole n and the liquid replenishment port of the air-conditioning system liquid replenishment chamber c are staggered in the up and down directions, so that the coolant replenished from the top will not directly enter the liquid replenishment port after flowing through the connecting hole n, and the steam coming out of the liquid replenishment port will not directly pass through the connecting hole n. In the middle, it will pass through the buffer in the length direction of the air-conditioning system liquid replenishment chamber c, thereby further reducing the liquid churning and vortex phenomena.
[0050] In some embodiments, reference Figure 2A liquid replenishing tube 130 is provided on the outer wall of the kettle body 110, and a partition is provided inside the liquid replenishing tube 130. The interior of the liquid replenishing tube 130 is divided into at least a first passage e, a second passage f and a third passage g which are isolated from each other through the partition; the first passage e is connected to the liquid replenishing port of the liquid replenishing chamber a of the battery cooling system, the second passage f is connected to the liquid replenishing port of the liquid replenishing chamber b of the motor cooling system, and the third passage g is connected to the liquid replenishing port of the liquid replenishing chamber c of the air conditioning system.
[0051] In this embodiment, the first passage e, the second passage f and the third passage g respectively connected to the three chambers are integrated into the same infusion tube 130, which has a compact structure, occupies a small space and is suitable for vehicle design.
[0052] In some embodiments, reference Fig. 9 The battery cooling system refilling chamber a and the motor cooling system refilling chamber b are arranged at intervals, and the air-conditioning system refilling chamber c extends between the battery cooling system refilling chamber a and the motor cooling system refilling chamber b; the bottom wall of the expansion kettle 100 has an opening area h, and the opening area h spans the battery cooling system refilling chamber a, the motor cooling system refilling chamber b and the air-conditioning system refilling chamber c, and the refilling ports of the battery cooling system refilling chamber a, the motor cooling system refilling chamber b and the air-conditioning system refilling chamber c are all opened in the opening area h, and the opening area h is connected to the refilling tube 130.
[0053] This embodiment is a specific implementation method for realizing compact arrangement of the refilling ports of the battery cooling system refilling chamber a, the motor cooling system refilling chamber b and the air conditioning system refilling chamber c, so as to facilitate communication with the first passage e, the second passage f and the third passage g of the refilling tube 130.
[0054] In particular, the air conditioning system refilling chamber c extends between the battery cooling system refilling chamber a and the motor cooling system refilling chamber b, and the portion of the wave-breaking pressure plate 160 that matches the extended area is the branch plate 161 .
[0055] Furthermore, the corresponding lower part of the branch plate 161 is the liquid filling port of the liquid filling chamber c of the air conditioning system, and a plurality of connecting holes n are arranged at intervals at one end of the wave-proof pressure plate 160 away from the branch plate 161, so as to achieve the vertical misalignment of the connecting holes n and the liquid filling port.
[0056] In some embodiments, reference Figures 4 to 6 The cover pressing member 121 protrudes upward around the guide hole d and forms a curved surface limiting groove i. The sealing body 122 is a spherical structure, and the top of the spherical structure abuts against the curved surface limiting groove i.
[0057] In this embodiment, the spherical structure fits more closely with the curved limiting groove i, and under normal working conditions, the sealing effect is better. Moreover, the curved limiting groove i can also limit the top of the spherical structure to prevent the spherical structure from shaking and running, affecting the sealing effect and causing liquid reflux.
[0058] In some embodiments, the density of the coolant vapor is 1 0.5kg / m 3 Up to 0.8kg / m 3 , the density ρ of the sealing body 122 2 0.9kg / m 3 Up to 0.95kg / m 3 , the density of the coolant ρ 3 1kg / m 3 Up to 1.2kg / m 3 .
[0059] In this embodiment, preferably, the coolant is water, and the density is about 1 kg / cm 3 More preferably, the coolant is a combination of ethylene glycol and water, wherein the volume ratio of ethylene glycol to water is 50% each, and the density is about 1.1132 kg / cm at standard atmospheric pressure. 3 ;
[0060] In addition, the sealing body 122 can be solid or hollow, and the material can be rubber. Specifically, the density of natural rubber is 0.93 kg / cm 3 , the density of isoprene rubber is 0.94kg / cm 3 , the density of styrene-butadiene rubber is 0.94kg / cm 3 .
[0061] In some embodiments, reference Figure 3 The top of the kettle body 110 has an identification area l, and the identification area l is provided with a maximum filling line j and a minimum filling line k, and the maximum filling line j is located above the minimum filling line k; the liquid level of the coolant is located between the maximum filling line j and the minimum filling line k; the kettle body 110 is a transparent structure at least in the identification area l.
[0062] In this embodiment, the kettle body 110 can be provided with a transparent structure only in the identification area 1, or a larger area including the identification area 1 on the kettle body 110 can be provided with a transparent structure, or the entire kettle body 110 can be provided with a transparent structure. The above specific implementation methods can all achieve the purpose of observing the coolant level and are within the protection scope of the present application.
[0063] It should be noted that, preferably, the kettle body 110 includes an upper shell 111 and a lower shell 112 that are interlocked, so as to facilitate the installation and maintenance of internal components; the upper shell 111 is provided with a filling port m, and the coolant can be filled into the kettle body 110 from the filling port m; a protrusion is formed at the filling port m, and the protrusion can be threadedly connected to the filling cap 150 to seal the filling port m; an exhaust port can be provided on the side wall of the protrusion, and the exhaust port is connected to an exhaust pipe 140, and an exhaust valve can be provided at the exhaust port.
[0064] In a second aspect, the present application further provides a vehicle thermal management system, which includes the expansion kettle 100 in the first aspect.
[0065] In a third aspect, the present application also provides a vehicle, the vehicle comprising the vehicle thermal management system in the second aspect.
[0066] In the above embodiments, the vehicle thermal management system in the second aspect and the vehicle in the third aspect include the expansion kettle 100 in the first aspect. Therefore, the vehicle thermal management system in the second aspect and the vehicle in the third aspect have at least all the technical effects of the expansion kettle 100 in the first aspect, and the specific technical effects will not be repeated here.
[0067] The embodiments in the present application only illustrate the vehicle thermal management system and the structures in the vehicle related to the improvements of the present application, and do not mean that the vehicle thermal management system in the second aspect of the present application and the vehicle in the third aspect do not have other structures. For example, the vehicle thermal management system also includes a battery cooling system circulating pump, a motor cooling system circulating pump and an air-conditioning system circulating pump, etc. Other structures will not be described one by one here.
[0068] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. An expansion kettle, characterized in that: include: A kettle body (110), wherein the upper side of the kettle body (110) is provided with an exhaust port, the interior of the kettle body (110) is provided with a plurality of chambers, the plurality of chambers are all connected to the exhaust port, and the lower sides of the plurality of chambers are respectively provided with a liquid replenishing port; A flow guide component (120), the flow guide component (120) being arranged in at least a part of the chamber, and the flow guide component (120) being located between the exhaust port and the liquid infusion port; the flow guide component (120) comprising a cover pressing member (121) and a sealing body (122), the cover pressing member (121) being connected to the inner wall of the chamber, and the cover pressing member (121) having a flow guide hole (d), the sealing body (122) being arranged below the cover pressing member (121), and the sealing body (122) being capable of blocking the flow guide hole (d); The kettle body (110) is filled with cooling liquid, the liquid level of the cooling liquid is at least higher than the cover pressing part (121), the sealing body (122) floats between the guide hole (d) and the liquid replenishing port, and the density of the cooling liquid vapor ρ1 is less than the density of the sealing body (122) ρ2 and less than the density of the cooling liquid ρ3.
2. The expansion kettle according to claim 1, characterized in that: The flow guide assembly (120) further comprises a spoiler (123), wherein the spoiler (123) is vertically distributed above the cover pressing member (121); The spoiler plates (123) are multiple, and the multiple spoiler plates (123) are arranged around the guide hole (d).
3. The expansion kettle according to claim 1, characterized in that: The multiple chambers include a battery cooling system refill chamber (a), a motor cooling system refill chamber (b), and an air conditioning system refill chamber (c); The battery cooling system refilling chamber (a) and the motor cooling system refilling chamber (b) are arranged in parallel, and the flow guide assembly (120) is respectively arranged in the battery cooling system refilling chamber (a) and the motor cooling system refilling chamber (b); The air conditioning system refilling chamber (c) is distributed on one side of the battery cooling system refilling chamber (a) and the motor cooling system refilling chamber (b), and a wave-proof pressure plate (160) is provided in the air conditioning system refilling chamber (c), and the wave-proof pressure plate (160) has a connecting hole (n), the aperture of the connecting hole (n) is smaller than the aperture of the guide hole (d), and the connecting hole (n) and the refilling port of the air conditioning system refilling chamber (c) are staggered in the up-down direction.
4. The expansion kettle according to claim 3, characterized in that The outer wall of the kettle body (110) is provided with a liquid infusion tube (130), a partition is provided inside the liquid infusion tube (130), and the interior of the liquid infusion tube (130) is divided into at least a first passage (e), a second passage (f) and a third passage (g) which are isolated from each other by the partition; The first passage (e) is connected to the fluid filling port of the battery cooling system fluid filling chamber (a), the second passage (f) is connected to the fluid filling port of the motor cooling system fluid filling chamber (b), and the third passage (g) is connected to the fluid filling port of the air conditioning system fluid filling chamber (c).
5. The expansion kettle according to claim 4, characterized in that: The battery cooling system refilling chamber (a) and the motor cooling system refilling chamber (b) are arranged at intervals, and the air conditioning system refilling chamber (c) extends between the battery cooling system refilling chamber (a) and the motor cooling system refilling chamber (b); The bottom wall of the expansion kettle (100) has an opening area (h), and the opening area (h) spans the battery cooling system fluid replenishment chamber (a), the motor cooling system fluid replenishment chamber (b), and the air conditioning system fluid replenishment chamber (c), and the fluid replenishment ports of the battery cooling system fluid replenishment chamber (a), the motor cooling system fluid replenishment chamber (b), and the air conditioning system fluid replenishment chamber (c) are all opened in the opening area (h), and the opening area (h) is connected to the fluid replenishment tube (130).
6. The expansion kettle according to any one of claims 1 to 5, characterized in that The cover pressing member (121) protrudes upward around the guide hole (d) and forms a curved surface limiting groove (i); the sealing body (122) is a spherical structure, and the top of the spherical structure abuts against the curved surface limiting groove (i).
7. The expansion kettle according to any one of claims 1 to 5, characterized in that The density of the coolant vapor is ρ1, which is 0.5 kg / m 3 Up to 0.8kg / m 3 The density ρ2 of the sealing body (122) is 0.9 kg / m 3 Up to 0.95kg / m 3 The density of the coolant is ρ3, which is 1 kg / m 3 Up to 1.2kg / m 3 .
8. The expansion kettle according to any one of claims 1 to 5, characterized in that The kettle body (110) has a marking area (1) on the top, the marking area (1) is provided with a maximum filling line (j) and a minimum filling line (k), and the maximum filling line (j) is located above the minimum filling line (k); The liquid level of the coolant is located between the maximum filling line (j) and the minimum filling line (k); The kettle body (110) is a transparent structure at least in the marking area (1).
9. A vehicle thermal management system, characterized in that: The invention comprises the expansion kettle (100) according to any one of claims 1 to 8.
10. A vehicle, characterized in that: Includes the vehicle thermal management system as described in claim 9.