Battery cooling system, battery and vehicle

Abstract

The utility model provides a battery cooling system, a battery and a vehicle, the battery cooling system comprises a support piece, a heat conduction main body and a heat conduction structure, and the support piece is provided with a mounting position for mounting an electrical part; the heat-conducting main body is connected to the supporting piece and is matched with the supporting piece to guide the heat-conducting fluid; the heat conduction structure is arranged on the supporting piece, at least partially surrounds the installation position, and the heat conduction structure is in heat conduction connection with the heat conduction body. According to the battery cooling system provided by the utility model, the heat conduction structure in heat conduction connection with the heat conduction main body is arranged, and at least part of the heat conduction structure is arranged around the mounting position on the supporting piece, so that the heat conduction structure can provide targeted heat management for the electrical piece mounted on the mounting position; therefore, the overall heat exchange efficiency of the battery cooling system is improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically to a battery cooling system, a battery, and a vehicle. Background Technology

[0002] With the development of technology, new energy batteries are being used more and more widely in people's daily lives. In order to meet the growing demand for high-power discharge and fast charging, the energy density of batteries is constantly increasing, and the heat generated by batteries during use is also increasing. Therefore, it is necessary to install a battery cooling system inside the battery to ensure the safety of the battery during use.

[0003] Battery cooling systems in related technologies cannot achieve sufficient thermal management effects due to limited heat exchange efficiency. Utility Model Content

[0004] In view of this, the present invention aims to provide a battery cooling system, a battery, and a vehicle to solve the problem that the battery cooling system cannot achieve sufficient thermal management effect due to its limited heat exchange efficiency.

[0005] This utility model provides a battery cooling system, including:

[0006] A support member, wherein the support member is provided with mounting positions for installing electrical components;

[0007] The heat-conducting body is connected to the support member and cooperates with the support member to guide the flow of heat-conducting fluid;

[0008] A heat-conducting structure is provided on the support member, at least a portion of the heat-conducting structure is arranged around the mounting position, and the heat-conducting structure is thermally connected to the heat-conducting body.

[0009] This battery cooling system, by setting a heat-conducting structure that is thermally connected to the heat-conducting main body, and by having the heat-conducting structure at least partially surround the mounting position on the support member, can provide targeted thermal management for the electrical components mounted at the mounting position, and increases the relative contact area between the heat-conducting structure and the electrical components, thereby improving the overall heat exchange efficiency of the battery cooling system. Optionally, in the above-described battery cooling system, the heat-conducting main body includes a substrate and multiple sequentially connected liquid cooling channels disposed on the substrate;

[0010] The heat-conducting structure includes a liquid-cooling pipe communicating with the liquid-cooling channel. The liquid-cooling pipe includes a liquid-cooling straight pipe and a liquid-cooling bend pipe connected to each other. The liquid-cooling straight pipe and the liquid-cooling bend pipe together form a liquid-cooling groove, or the liquid-cooling bend pipe forms a liquid-cooling groove by bending. The liquid-cooling groove is at least partially arranged around the mounting position.

[0011] By setting the heat-conducting body as a liquid-cooled structure, the cooling effect on electrical components can be improved. Furthermore, by bending the liquid-cooling pipe to form a liquid-cooling groove around the mounting position, a relatively simple structure can be used to achieve sufficient cooling of electrical components and avoid interference with other battery structures.

[0012] Optionally, in the above-described battery cooling system, the mounting position includes a first mounting position and a second mounting position spaced apart from each other, the first mounting position being used to mount a first electrical component, and the second mounting position being used to mount a second electrical component;

[0013] The liquid cooling pipe includes multiple liquid cooling bends spaced apart from each other. The liquid cooling bends are bent to form a first liquid cooling groove corresponding to the first mounting position. The two ends of the liquid cooling straight pipe are respectively connected to two adjacent liquid cooling bends. The liquid cooling straight pipe and the liquid cooling bends together form a second liquid cooling groove corresponding to the second mounting position.

[0014] With this setup, a liquid cooling recess can be provided for each mounting position, ensuring that the electrical components located at each mounting position are adequately cooled, thus improving the cooling effect.

[0015] Optionally, in the above-mentioned battery cooling system, the liquid cooling bend includes a first sub-bend and a second sub-bend, the first sub-bend and the second sub-bend are respectively connected to both sides of the same liquid cooling straight pipe, and the first sub-bend and the second sub-bend are bent towards each other so that the first sub-bend and the second sub-bend together form the first liquid cooling groove.

[0016] In this structure, the sub-bends of the liquid-cooled bends are bent on both sides of the liquid-cooled straight pipe to form the first liquid-cooled grooves at the distribution position of the liquid-cooled straight pipe, so that the electrical components that cooperate with the liquid-cooled straight pipe can also be fully cooled. The heat conduction structure can better meet the cooling needs of various types of electrical components.

[0017] Optionally, in the above-mentioned battery cooling system, the heat-conducting structure further includes a transition bend, one end of which is connected to the liquid cooling pipe, and the other end of which passes through the support and communicates with the liquid cooling channel.

[0018] Using an adapter bend to connect the heat-conducting body and the liquid cooling pipe enables the installation of the liquid cooling pipe on the heat-conducting body and the support. The adapter bend also connects the liquid cooling pipe and the liquid cooling channel, allowing the heat-conducting fluid in the liquid cooling channel to enter the liquid cooling pipe and achieve liquid cooling of the electrical components. This results in better cooling performance and a simpler cooling structure.

[0019] Optionally, in the above-described battery cooling system, the heat-conducting body includes a substrate and multiple sequentially connected liquid cooling channels disposed on the substrate, and:

[0020] The heat-conducting structure includes a heat-conducting element that conducts heat with the liquid cooling channel and fins connected to the heat-conducting element.

[0021] And / or,

[0022] The heat-conducting structure includes a liquid cooling pipe communicating with the liquid cooling channel. At least a portion of the liquid cooling pipe includes multiple branches arranged in parallel, which cooperate to surround the mounting position.

[0023] On the one hand, the heat-conducting structure can no longer be a liquid-cooled structure, but can only conduct heat. The solid heat-conducting component conducts the heat of the electrical components to the heat-conducting fluid in the liquid-cooling channel to dissipate heat from the electrical components. Furthermore, fins are set on the heat-conducting component to dissipate heat into the environment to further improve the heat dissipation effect. On the other hand, when the heat-conducting structure is a liquid-cooled structure that can guide the flow of heat-conducting fluid, the liquid-cooling pipe can include multiple parallel branches, so that the heat-conducting fluid can flow from different branches at the same time to jointly dissipate heat from the electrical components, resulting in higher heat dissipation efficiency and better cooling.

[0024] Optionally, in the above-described battery cooling system, the support member is fixedly connected to the substrate to form a closed liquid cooling channel between them, and the heat-conducting fluid flowing in the liquid cooling channel and the liquid cooling pipe is a refrigerant.

[0025] By using the heat-conducting fluid in the liquid cooling channels and liquid cooling pipes as the refrigerant, the electrical components can be cooled more efficiently and fully due to the large latent heat of vaporization of the refrigerant, thereby maximizing the cooling effect.

[0026] Another aspect of this utility model provides a battery, including: a battery cooling system as described above; and electrical components disposed at the mounting position.

[0027] Optionally, in the battery described above, the mounting position includes a first mounting position and a second mounting position; the electrical components include high-voltage circuit components and a battery management unit, the high-voltage circuit components are located at the first mounting position, the battery management unit is located at the second mounting position, and the heat-conducting structure at least partially surrounds the high-voltage circuit components and partially surrounds the battery management unit in the circumferential direction.

[0028] Since the high-voltage circuit components and battery management unit in the battery's electrical components are the key control devices of the battery, and they generate a lot of heat and their performance is greatly affected by temperature, the above-mentioned heat-conducting structure is specifically used to cool the high-voltage circuit components and battery management unit in order to better ensure the normal operation of the battery.

[0029] Another aspect of this invention provides a vehicle including the aforementioned battery, the battery being used at least to provide the electrical energy required for the vehicle to operate. Attached Figure Description

[0030] Figure 1 A partial structural schematic diagram of the battery provided in an embodiment of this utility model;

[0031] Figure 2 Exploded view of the support component and heat-conducting body of the battery cooling system provided in the embodiment of this utility model;

[0032] Figure 3 A schematic diagram of the structure of the heat-conducting structure on the support in the battery cooling system provided in this embodiment of the utility model;

[0033] Figure 4 A schematic diagram of the thermally conductive structure and electrical components in thermal contact in a battery cooling system provided in an embodiment of this utility model;

[0034] Figure 5 This is a schematic diagram showing the structure of the support component, heat-conducting structure, and electrical components in the battery cooling system provided in this embodiment of the utility model.

[0035] exist Figures 1-5 middle:

[0036] 100-Battery cooling system;

[0037] 1000 - Support component, 1100 - Mounting position, 1110 - First mounting position, 1120 - Second mounting position;

[0038] 2000 - Thermal conductive body, 2100 - Substrate, 2200 - Liquid cooling channel;

[0039] 3000 - Thermally conductive structure, 3100 - Liquid cooling pipe, 3110 - Liquid cooling straight pipe, 3120 - Liquid cooling bend, 3121 - First sub-bend, 3122 - Second sub-bend, 3130 - Liquid cooling groove, 3131 - First liquid cooling groove, 3132 - Second liquid cooling groove, 3200 - Adapter bend;

[0040] 200 - Electrical components;

[0041] 4000 - High-voltage circuit components;

[0042] 5000 - Battery Management Unit. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] To at least partially address the problem that battery cooling systems in related technologies cannot achieve sufficient thermal management due to limited heat exchange efficiency, please refer to [link to relevant documentation]. Figures 1 to 3 This utility model provides a battery cooling system 100 for installation in a battery, which can be a vehicle's power battery. Specifically, the battery cooling system 100 includes a support member 1000, a heat-conducting body 2000, and a heat-conducting structure 3000. The support member 1000 has a mounting position 1100 for installing electrical components 200. The heat-conducting body 2000 is connected to the support member 1000. The heat-conducting structure 3000 is disposed on the support member 1000, at least partially surrounding the mounting position 1100, and is thermally connected to the heat-conducting body 2000.

[0045] Specifically, the support member 1000 is used to install and support various components or assemblies in the heat-conducting body 2000 and the heat-conducting structure 3000. The specific shape, structure, and size of the support member 1000 are not limited. For example, the support member 1000 can be a support block, support plate, etc., and has one or more support surfaces, wherein any one or more support surfaces are provided with mounting positions 1100 for installing electrical components 200. The specific location, number, shape, and size of the mounting positions 1100 can be adaptively adjusted according to the number, shape, and size of the electrical components 200, and are not limited here.

[0046] The heat-conducting body 2000 is connected to the support member 1000, and its installation method is not limited, thereby enabling the heat-conducting body 2000 to perform thermal management on the electrical component 200 installed at the mounting position 1100. The heat-conducting body 2000 can be made of a material with high thermal conductivity, and a heat-conducting fluid can be introduced into the heat-conducting body 2000, thereby enabling heat exchange between the heat-conducting body 2000 and the electrical component 200. When both the heat-conducting body 2000 and the support member 1000 are plate-shaped structures, the structure formed by the heat-conducting body 2000 and the support member 1000 is a liquid cooling plate for guiding liquid heat-conducting fluid. This liquid cooling plate can be the original liquid cooling plate in the battery, or it can be a liquid cooling plate added to the original battery structure.

[0047] A heat-conducting structure 3000 is disposed on the support member 1000. Since the heat-conducting structure 3000 is at least partially arranged around the mounting position 1100 (i.e., the heat-conducting structure 3000 partially surrounds the mounting position 1100 in the circumferential direction, or completely surrounds the mounting position 1100 in a 360° circumferential direction), compared to the air-cooling solution for the electrical component 200 in related technologies, a dedicated heat-conducting structure is specifically added for the electrical component 200 mounted on the liquid cooling plate. Simultaneously, the heat-conducting structure... The structure can be a liquid-cooled structure that exchanges heat with the electrical component 200 by guiding the coolant, or a heat conduction structure that transfers the cold or heat in the heat-conducting body 2000 to the electrical component 200. This provides targeted thermal management for the electrical component 200 mounted on the mounting position 1100. Furthermore, the surrounding arrangement increases the contact area between the heat-conducting structure 3000 and the electrical component 200, further improving the overall heat exchange efficiency of the battery cooling system 100 and better dissipating heat from the electrical component. For example, the heat-conducting structure 3000 and the heat-conducting body 2000 can be connected using thermally conductive adhesive. This configuration allows the heat-conducting structure 3000 to effectively transfer heat between the mounting position 1100 on the support 1000 and the heat-conducting body 2000, thus achieving thermal management of the electrical component 200 according to usage requirements.

[0048] The battery cooling system 100 provided by this utility model provides a heat-conducting structure 3000 that is thermally connected to the heat-conducting body 2000, and the heat-conducting structure 3000 is arranged to at least partially surround the mounting position 1100 on the support member 1000. In this way, the heat-conducting structure 3000 can provide targeted thermal management for the electrical components 200 installed on the mounting position 1100, thereby improving the overall heat exchange efficiency of the battery cooling system 100.

[0049] The specific structural form of the heat-conducting body 2000 is not limited, such as Figure 1 and Figure 2 As shown, in some embodiments, optionally, the heat-conducting body 2000 includes a substrate 2100 and a plurality of sequentially connected liquid cooling channels 2200 disposed on the substrate 2100. The heat-conducting structure 3000 includes a liquid cooling pipe 3100 communicating with the liquid cooling channels 2200. The liquid cooling pipe 3100 includes a liquid cooling straight pipe 3110 and a liquid cooling bent pipe 3120 connected to each other. The liquid cooling straight pipe 3110 and the liquid cooling bent pipe 3120 together form a liquid cooling groove 3130. The liquid cooling groove 3130 is at least partially disposed around the mounting position 1100.

[0050] The liquid cooling channel 2200 can be formed by slotting on the substrate 2100 through material removal, or by stamping the metal substrate 2100. A heat-conducting fluid, such as cooling water or cooling oil, is introduced into the channel. This fluid absorbs heat at relatively high temperatures and releases heat at relatively low temperatures, thus achieving heat exchange and heat conduction. The liquid cooling channel 2200 can occupy as large an area as possible on the substrate 2100, thereby improving the heat exchange efficiency of the heat-conducting body 2000. Correspondingly, the heat-conducting structure 3000 includes a liquid cooling pipe 3100 connected to the liquid cooling channel 2200. This pipe 3100 also has internal channels, allowing the heat-conducting fluid to flow along these channels and the liquid cooling channel 2200 on the substrate 2100, thus achieving heat conduction between the heat-conducting body 2000 and the heat-conducting structure 3000. In other words, the heat-conducting structure 3000 can be configured as a liquid-cooled structure. Specifically, the liquid cooling pipe 3100 includes a liquid cooling straight pipe 3110 and a liquid cooling bent pipe 3120 connected to each other. By setting the liquid cooling bent pipe 3120, the heat-conducting structure 3000 can partially or completely surround the electrical component 200, thereby increasing the contact area between the heat-conducting structure 200 and the electrical component 200 set on the mounting position 1100. The liquid cooling straight pipe 3110 can simplify the structure of the heat-conducting structure 3000 at the position where it does not contact the electrical component 200, reducing or avoiding the impact of the heat-conducting structure 3000 on the original structure inside the battery. Specifically, the number, setting position, and setting range of the liquid cooling straight pipe 3110 and the liquid cooling bent pipe 3120 can be adjusted according to actual usage requirements, and are not limited here. Furthermore, the liquid-cooled straight pipe 3110 and the liquid-cooled bent pipe 3120 together form a liquid-cooled groove 3130, or the liquid-cooled bent pipe 3120 itself forms a liquid-cooled groove 3130 by bending. This liquid-cooled groove 3130 is a structure that surrounds the electrical component 200. The liquid-cooled groove 3130 can be flexibly and appropriately set for various types, shapes and sizes of electrical components 200. By setting the liquid-cooled groove 3130 to at least partially surround the mounting position 1100, the applicability of the heat-conducting structure 3000 is expanded, and the contact area between the liquid-cooled pipe 3100 and the electrical component 200 installed at the mounting position 1100 can be increased, thereby improving the overall heat exchange efficiency of the battery cooling system 100.

[0051] The electrical components 200 inside the battery may include various different types, and there may be multiple of each type. Therefore, the support 1000 can be provided with multiple different mounting positions 1100 for these different types of electrical components 200, such as... Figure 1 , Figure 4 and Figure 5As shown, in some embodiments, optionally, the mounting position 1100 includes a first mounting position 1110 and a second mounting position 1120 spaced apart from each other. The first mounting position 1110 is used to mount a first electrical component, and the second mounting position 1120 is used to mount a second electrical component. The liquid cooling pipe 3100 includes multiple liquid cooling bends 3120 spaced apart from each other. The liquid cooling bends 3120 are bent to form a first liquid cooling groove 3131 corresponding to the first mounting position 1110. The two ends of the liquid cooling straight pipe 3110 are respectively connected to two adjacent liquid cooling bends 3120. The liquid cooling straight pipe 3110 and the liquid cooling bends 3120 together form a second liquid cooling groove 3132 corresponding to the second mounting position 1120.

[0052] The specific positions, quantities, shapes, and dimensions of the first mounting positions 1110 and the second mounting positions 1120 on the support member 1000 can be adaptively adjusted according to the quantity, shape, and dimensions of the first electrical component and the second electrical component. Figure 4 and Figure 5 In the illustrated embodiment, the support member 1000 is provided with two first mounting positions 1110 and one second mounting position 1120 for mounting two first electrical components and one second electrical component, respectively. Correspondingly, the liquid cooling pipe 3100 includes multiple liquid cooling bends 3120 spaced apart from each other. Each bend 3120 is bent to form multiple first liquid cooling grooves 3131 corresponding to the multiple first mounting positions 1110. The two ends of the liquid cooling straight pipe 3110 are respectively connected to two adjacent liquid cooling bends 3120. The liquid cooling straight pipe 3110 and the liquid cooling bends 3120 together form a second liquid cooling groove 3132 corresponding to one second mounting position 1120. Figure 3 In the embodiment shown, the liquid cooling pipe 3100 includes two liquid cooling bends 3120 spaced apart from each other. The two ends of the liquid cooling straight pipe 3110 are respectively connected to the two liquid cooling bends 3120. The two liquid cooling bends 3120 are bent to form two first liquid cooling grooves 3131 corresponding to two first mounting positions 1110.

[0053] As described above, the liquid-cooled bend 3120 is bent to form a first liquid-cooled groove 3131 corresponding to the first mounting position 1110, and the liquid-cooled straight tube 3110 and the liquid-cooled bend 3120 together form a second liquid-cooled groove 3132 corresponding to the second mounting position 1120. Please continue reading. Figure 3Based on the above embodiments, the liquid-cooled bend 3120 further includes a first sub-bend 3121 and a second sub-bend 3122. The first sub-bend 3121 and the second sub-bend 3122 are respectively connected to the same liquid-cooled straight pipe 3110, and the first sub-bend 3121 and the second sub-bend 3122 are bent relative to the liquid-cooled straight pipe 3110, with the bending direction being opposite, that is, the direction in which the first sub-bend 3121 and the second sub-bend 3122 approach each other (opposite direction as shown in the figure). Figure 3 (As shown by the two opposing arrows in the diagram) bends so that the first sub-bend 3121 and the second sub-bend 3122 together form the first liquid-cooled groove 3131.

[0054] exist Figure 3 In the illustrated embodiment, the first sub-bend 3121 and the second sub-bend 3122 are wavy or serpentine, forming a first liquid-cooled groove 3131 on one side by bending. The first sub-bend 3121 and the second sub-bend 3122 are spaced apart from each other, connected by a straight liquid-cooled tube 3110 extending in a straight line. The first sub-bend 3121 is located to the left of the liquid-cooled tube 3110, and the portion of the first sub-bend 3121 near the liquid-cooled tube 3110 bends relative to the liquid-cooled tube 3110 towards the right side of the figure (e.g., as shown in the figure). Figure 3 (As indicated by the arrow pointing to the right), the second sub-bend 3122 is located to the right of the liquid-cooled straight tube 3110, and the portion of the second sub-bend 3122 near the liquid-cooled straight tube 3110 bends to the left relative to the liquid-cooled straight tube 3110 in the figure (as shown by the arrow pointing to the right). Figure 3 (As indicated by the arrow pointing to the left), the first sub-bend 3121 and the second sub-bend 3122 are respectively in opposite bending directions relative to the liquid-cooled straight pipe 3110. Thus, the first sub-bend 3121, the second sub-bend 3122 and the liquid-cooled straight pipe 3110 together form the second liquid-cooled groove 3132.

[0055] In the above structure, in order to further increase the contact area between the liquid cooling pipe 3100 and the electrical component 200 to improve the heat dissipation effect on the electrical component 200, the liquid cooling pipe 3100 can optionally be configured as a flat pipe with an internal channel (i.e., both the liquid cooling straight pipe 3110 and the liquid cooling bent pipe 3120 are flat pipes), so that its external structure is a long plate-like structure, and that its largest plate surface is in close contact with the electrical component 200 for sufficient heat exchange.

[0056] The heat-conducting structure 3000 is thermally connected to the heat-conducting body 2000. In some embodiments, the heat-conducting structure 3000 may optionally include a transition bend 3200, one end of which is connected to the liquid cooling pipe 3100, and the other end of which passes through the support member 1000 and communicates with the liquid cooling channel 2200.

[0057] In this embodiment, the channel inside the liquid cooling pipe 3100 is connected to the liquid cooling flow channel 2200 on the substrate 2100 via a heat-conducting structure 3000. This allows the heat-conducting fluid to flow along the channel inside the liquid cooling pipe 3100 and the liquid cooling flow channel 2200 on the substrate 2100, thereby achieving heat conduction between the heat-conducting body 2000 and the heat-conducting structure 3000. Furthermore, the transition bend 3200 passes through the support member 1000 to connect to both the liquid cooling flow channel 2200 on the substrate 2100 and the liquid cooling pipe 3100. Thus, the transition bend 3200 also serves to connect and fix the substrate 2100 and the liquid cooling pipe 3100. Specifically, as shown... Figures 1-5 As shown, in order to improve the flow rate and smoothness of the heat transfer fluid, in an optional embodiment, the transition bend 3200 is set as a round pipe and its bending angle is 90°, so that it can better connect with the plate-shaped liquid cooling pipe 3100 that is vertically set on the support 1000, and is conducive to the vertical setting of the liquid cooling pipe 3100.

[0058] In the above embodiments, the heat-conducting structure 3000 includes a liquid-cooling pipe 3100 communicating with the liquid-cooling channel 2200. The liquid-cooling pipe 3100 includes a liquid-cooling straight pipe 3110 and a liquid-cooling bent pipe 3120 connected to each other to increase the contact area between the heat-conducting structure 3000 and the electrical component 200. In other embodiments, optionally, the heat-conducting body 2000 includes a substrate 2100 and a plurality of sequentially connected liquid-cooling channels 2200 disposed on the substrate 2100. The heat-conducting structure 3000 includes a heat-conducting element that conducts heat with the liquid-cooling channel 2200 and fins connected to the heat-conducting element. The heat-conducting component can still be a liquid-cooled pipe 3100 with internal liquid channels, or it can be a solid component (i.e., a heat-conducting rod) without internal channels. In this case, the heat-conducting component is a heat conduction structure that only conducts heat. When the heat-conducting component is a heat conduction structure, the heat-conducting rod is used to conduct heat and cold between the electrical component 200 and the heat-conducting fluid in the heat-conducting body 2000.

[0059] Furthermore, regardless of whether the heat-conducting component is a liquid-cooled pipe or a heat-conducting rod, to improve the heat dissipation effect on the electrical component 200, fins for heat dissipation can be added to the heat-conducting component near the liquid-cooling groove 3130. When the heat-conducting component is a liquid-cooled pipe 3100, the electrical component 200 can achieve liquid cooling through the liquid-cooled pipe 3100 or air cooling through the fins. When the heat-conducting component is a heat-conducting rod, the electrical component 200 achieves cooling through conduction heat transfer to the heat-conducting fluid via the heat-conducting rod and air cooling through the fins. Moreover, based on the addition of fins, to simplify the structure of the heat-conducting component, it can be set as a straight pipe or straight rod, that is, the aforementioned liquid-cooling groove 3130 is no longer required. The fins can be made of heat-conducting materials, and their specific placement, quantity, shape, and size are not limited.

[0060] Alternatively, the heat-conducting structure 3000 can also employ other structures. Optionally, the heat-conducting structure 3000 may include a liquid-cooling pipe 3100 connected to the liquid-cooling flow channel 2200. At least a portion of the liquid-cooling pipe 3100 may include multiple branches arranged in parallel, which cooperate to surround the mounting position. In this structure, the liquid-cooling pipe 3100 has multiple branches arranged in parallel, either partially or entirely, allowing the heat-conducting fluid to have multiple flow channels. These branches cooperate to surround the electrical component 200. For example, the multiple branches may include a first branch and a second branch for dissipating heat from the first electrical component. The first branch surrounds half of the circumference of the first electrical component, while the second branch surrounds the other half, thus achieving complete circumference-level surround of the first electrical component, resulting in more thorough and timely heat dissipation. Furthermore, the parallel flow of the heat-conducting fluid, compared to a series flow with only one flow channel, allows more low-temperature heat-conducting fluid to exchange heat with the electrical component, improving the heat exchange effect.

[0061] Please continue reading. Figure 2 In an optional embodiment, the support 1000 is fixedly connected to the substrate 2100 to form a closed liquid cooling channel 2200 between them. The heat-conducting body 2000 also includes a refrigerant filled in the liquid cooling channel 2200, that is, the heat-conducting fluid flowing in the liquid cooling channel 2200 and the liquid cooling pipe 3100 is a refrigerant. In this embodiment, the heat-conducting fluid flowing in the liquid cooling channel 2200 and the liquid cooling pipe 3100 is replaced by a refrigerant instead of cooling water, that is, the electrical component 200 is directly cooled. Since the refrigerant has a better cooling effect than cooling water, setting the heat-conducting fluid as a refrigerant can achieve heat dissipation of the electrical component 200 more quickly and fully, and the heat dissipation efficiency is higher.

[0062] In another aspect, the present invention provides a battery, which includes a battery cooling system 100 and an electrical component 200 as described in any of the above embodiments, wherein the electrical component 200 is disposed at the mounting position 1100.

[0063] By employing the battery cooling system 100 as described in any of the above embodiments, thermal management can be performed on the electrical components 200 located in the mounting position 1100 within the battery. Since the battery cooling system 100 has high heat exchange efficiency, it is beneficial to improve the cooling efficiency of the battery.

[0064] The battery also includes a housing and a cell module. The cell module includes multiple individual cells connected in series, parallel, or mixed. The cell module, the battery cooling system 100, and the electrical components 200 are all housed in the housing. The liquid cooling plate formed by the heat-conducting body 2000 and the support member 1000 in the battery cooling system 100 can be set at the bottom of the cell module, so that the battery cooling system 100 can simultaneously perform thermal management on the cell module.

[0065] In some embodiments, optionally, the mounting position 1100 includes a first mounting position 1110 and a second mounting position 1120; the heat-conducting body 2000 includes a substrate 2100 and multiple sequentially connected liquid cooling channels 2200 disposed on the substrate 2100; the heat-conducting structure 3000 includes a liquid cooling pipe 3100 communicating with the liquid cooling channels 2200; the liquid cooling pipe 3100 includes liquid cooling straight pipes 3110 connected to each other and multiple liquid cooling bent pipes 3120 spaced apart from each other; the liquid cooling bent pipes 3120 are bent to form a first liquid cooling groove 3131 corresponding to the first mounting position 1110; the two ends of the liquid cooling straight pipe 3110 are respectively connected to two adjacent liquid cooling bent pipes 3120; the liquid cooling straight pipe 3110 and the liquid cooling bent pipes 3120 together form a second liquid cooling groove 3132 corresponding to the second mounting position 1120; the electrical component 200 includes a high-voltage circuit component 4000 (Battery Disconnect Unit / Battery Energy). The distribution unit (BDU) and battery management system (BMS) 5000 are provided. The high-voltage circuit components 4000 include main relays, fast-charging relays, etc., which are located at the first mounting position 1110. The battery management unit 5000 is located at the second mounting position 1120. The heat-conducting structure 3000 surrounds at least a portion of the BDU and a portion of the BMS in the circumferential direction to achieve more sufficient and timely heat dissipation for the BDU and BMS.

[0066] In this embodiment, the support member 1000 is provided with two first mounting positions 1110 and one second mounting position 1120 for mounting two first electrical components and one second electrical component, respectively. Correspondingly, the liquid cooling pipe 3100 includes multiple liquid cooling bends 3120 spaced apart from each other. Each bend 3120 is bent to form multiple first liquid cooling grooves 3131 corresponding to the multiple first mounting positions 1110. The two ends of the liquid cooling straight pipe 3110 are respectively connected to two adjacent liquid cooling bends 3120. The liquid cooling straight pipe 3110 and the liquid cooling bends 3120 together form a second liquid cooling groove 3132 corresponding to one second mounting position 1120. Thus, thermal management can be performed on the high-voltage circuit component 4000 located at the first mounting position 1110 and the battery management unit 5000 located at the second mounting position 1120, resulting in a high overall heat exchange efficiency for the battery cooling system 100, which is beneficial for improving the battery's cooling efficiency.

[0067] Another aspect of this invention provides a vehicle that includes a battery as described in any of the above embodiments, the battery being used at least to provide the electrical energy required for the vehicle to operate.

[0068] This invention provides a vehicle using the aforementioned battery as a power source. The vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. The battery is installed inside the vehicle, and can be located at the bottom, front, or rear of the vehicle. The battery can at least be used for driving the vehicle; for example, the battery can serve as both a driving power source and an operating power source. The vehicle may also include a controller and a motor. The controller is used to control the battery's power supply to the motor, for example, for the vehicle's starting, navigation, and operating power needs. In some embodiments of this invention, the battery can not only serve as the vehicle's operating power source but also as its driving power source, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0069] Since the vehicle of this utility model uses the battery in any of the above embodiments as a power source, it has a high heat exchange efficiency, which is beneficial to improving the cooling efficiency of the battery, enabling the battery to meet the growing demand for high-power discharge and fast charging, and improving the stability of battery performance and battery life.

[0070] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0071] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0072] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

Claims

1. A battery cooling system, characterized in that, include: A support member, wherein the support member is provided with mounting positions for installing electrical components; A heat-conducting body is connected to the support member and cooperates with the support member to guide the flow of heat-conducting fluid. The heat-conducting body includes a substrate and multiple sequentially connected liquid cooling channels disposed on the substrate. A heat-conducting structure is provided on the support member, and the heat-conducting structure is heat-conductingly connected to the heat-conducting body. The heat-conducting structure includes a liquid cooling pipe that communicates with the liquid cooling channel. At least a portion of the liquid cooling pipe includes multiple branches arranged in parallel, and the multiple branches cooperate to surround the mounting position.

2. The battery cooling system according to claim 1, characterized in that, The heat-conducting body includes a substrate and multiple sequentially connected liquid cooling channels disposed on the substrate; The heat-conducting structure includes a liquid-cooling pipe communicating with the liquid-cooling channel. The liquid-cooling pipe includes a liquid-cooling straight pipe and a liquid-cooling bend pipe connected to each other. The liquid-cooling straight pipe and the liquid-cooling bend pipe together form a liquid-cooling groove, or the liquid-cooling bend pipe forms a liquid-cooling groove by bending. The liquid-cooling groove is at least partially arranged around the mounting position.

3. The battery cooling system according to claim 2, characterized in that, The mounting position includes a first mounting position and a second mounting position that are spaced apart from each other. The first mounting position is used to install a first electrical component, and the second mounting position is used to install a second electrical component. The liquid cooling pipe includes multiple liquid cooling bends spaced apart from each other. The liquid cooling bends are bent to form a first liquid cooling groove corresponding to the first mounting position. The two ends of the liquid cooling straight pipe are respectively connected to two adjacent liquid cooling bends. The liquid cooling straight pipe and the liquid cooling bends together form a second liquid cooling groove corresponding to the second mounting position.

4. The battery cooling system according to claim 3, characterized in that, The liquid-cooled bend includes a first sub-bend and a second sub-bend. The first sub-bend and the second sub-bend are respectively connected to both sides of the same liquid-cooled straight pipe, and the first sub-bend and the second sub-bend bend face each other so that the first sub-bend and the second sub-bend together form the first liquid-cooled groove.

5. The battery cooling system according to claim 2, characterized in that, The heat-conducting structure also includes a transition bend, one end of which is connected to the liquid cooling pipe, and the other end of which passes through the support and communicates with the liquid cooling channel.

6. The battery cooling system according to claim 1, characterized in that, The heat-conducting structure includes a heat-conducting element that conducts heat with the liquid cooling channel and fins connected to the heat-conducting element.

7. The battery cooling system according to any one of claims 2 to 6, characterized in that, The support member is fixedly connected to the substrate to form a closed liquid cooling channel between them, and the heat-conducting fluid flowing in the liquid cooling channel and the liquid cooling pipe is a refrigerant.

8. A battery, characterized in that, include: The battery cooling system as described in any one of claims 1 to 7; and Electrical components are located at the mounting position.

9. The battery according to claim 8, characterized in that, The mounting position includes a first mounting position and a second mounting position; the electrical components include high-voltage circuit components and a battery management unit, the high-voltage circuit components are located at the first mounting position, the battery management unit is located at the second mounting position, and the heat-conducting structure at least partially surrounds the high-voltage circuit components and partially surrounds the battery management unit in the circumferential direction.

10. A vehicle, characterized in that, include: The battery as claimed in claim 8 or 9 is at least used to provide the electrical energy required for the vehicle to operate.

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