Heat exchange plate, battery pack and electric device

Abstract

The utility model provides a kind of heat exchange plate, battery pack and electric device, the heat exchange plate includes battery heat exchange plate section and electrical component heat exchange plate section, electrical component heat exchange plate section is provided with electrical component heat exchange runner and convex hull structure, convex hull structure protrudes from the surface of heat exchange plate away from electrical component heat exchange runner, the area of convex hull structure covering electrical component heat exchange plate section is S1, the area of electrical component heat exchange plate section is S, 0.01≤S1 / S≤0.7.Through the technical scheme provided in the present application, the problem of overheating risk of electrical components in related art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a heat exchange plate, a battery pack, and an electrical device. Background Technology

[0002] The battery pack contains batteries and electrical components. The batteries enable efficient storage and release of energy, while the electrical components monitor and regulate the battery's operating status to ensure that the battery operates within a safe range, while also optimizing its performance and extending its lifespan.

[0003] In related technologies, when the battery pack is super-fast charged, the battery generates a lot of heat through the high current, and the electrical components also generate a lot of heat. This can cause the electrical components to overheat, which in turn affects their lifespan. Utility Model Content

[0004] This invention provides a heat exchange plate, a battery pack, and an electrical device to solve the problem of overheating risk in electrical components in related technologies.

[0005] According to one aspect of the present invention, a heat exchange plate is provided, comprising a battery heat exchange plate segment and an electrical component heat exchange plate segment. The electrical component heat exchange plate segment is provided with an electrical component heat exchange channel and a convex structure. The convex structure protrudes from the surface of the heat exchange plate away from the electrical component heat exchange channel. The area covered by the convex structure of the electrical component heat exchange plate segment is S1, and the area of ​​the electrical component heat exchange plate segment is S, where 0.01≤S1 / S≤0.7.

[0006] According to another aspect of the present invention, a battery pack is provided, the battery pack including a battery, electrical components and a heat exchange plate, wherein the battery is provided with a battery heat exchange plate segment corresponding to the heat exchange plate, the electrical components are provided with an electrical component heat exchange plate segment corresponding to the heat exchange plate, and the heat exchange plate is the heat exchange plate provided above.

[0007] According to another aspect of the present invention, an electrical device is provided, the electrical device including a battery pack, the battery pack being the battery pack provided above.

[0008] By applying the technical solution of this utility model, firstly, the heat exchange plate segment for electrical components is provided with heat exchange channels for electrical components. These channels facilitate heat exchange for the electrical components, preventing overheating and thus addressing the overheating risk issue in related technologies. Secondly, the heat exchange plate segment for electrical components is provided with a convex structure. This convex structure protrudes from the surface of the heat exchange plate away from the heat exchange channels, forming a space within it. This reduces the impact of the external environment on the electrical components, further mitigating the overheating risk issue in related technologies. Furthermore, since the area covered by the convex structure on the heat exchange plate segment is S1, and the area of ​​the heat exchange plate segment is S, with 0.01 ≤ S1 / S ≤ 0.7, this design balances the heat exchange requirements of the electrical components with the blocking of the heat conduction path within the electrical compartment. This ensures that the heat conduction path between the electrical compartment and the outside environment is effectively blocked without sacrificing the heat exchange area of ​​the heat exchange plate segment and the electrical components, effectively suppressing overheating of the electrical components. Attached Figure Description

[0009] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0010] Figure 1 A top view of the battery pack provided in an embodiment of the present invention is shown;

[0011] Figure 2 This shows a partial enlarged top view of the heat exchange plate section of the electrical components of the battery pack provided in an embodiment of the present invention;

[0012] Figure 3 This shows a partial enlarged axial view of the heat exchange plate section of the electrical components of the battery pack provided in an embodiment of the present invention;

[0013] Figure 4 Another top view of the battery pack provided in this embodiment of the present invention is shown;

[0014] Figure 5 A bottom view of the battery pack provided in an embodiment of the present invention is shown;

[0015] Figure 6 The image shows a bottom view of the battery pack provided in this embodiment of the present invention with the protective plate removed.

[0016] The above figures include the following reference numerals:

[0017] 10. Battery heat exchange plate section; 11. Battery heat exchange flow channel;

[0018] 20. Heat exchange plate section for electrical components; 21. Heat exchange channel for electrical components; 211. First direct current channel section; 212. Second direct current channel section; 22. Convex hump structure; 221. Convex hump; 222. First convex hump; 223. Second convex hump;

[0019] 30. Battery;

[0020] 40. Heat exchange plate;

[0021] 50. Protective panels;

[0022] 60. Battery pack;

[0023] D. Width of the convex hull;

[0024] L represents the distance between the convex hull structure and the heat exchange channel of the electrical components. Detailed Implementation

[0025] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1 to 6 As shown, this utility model embodiment provides a heat exchange plate, which includes a battery heat exchange plate segment 10 and an electrical component heat exchange plate segment 20. The electrical component heat exchange plate segment 20 is provided with an electrical component heat exchange channel 21 and a convex structure 22. The convex structure 22 protrudes from the surface of the heat exchange plate away from the electrical component heat exchange channel 21. The area covered by the convex structure 22 of the electrical component heat exchange plate segment 20 is S1, and the area of ​​the electrical component heat exchange plate segment 20 is S, where 0.01≤S1 / S≤0.7.

[0027] Using the heat exchange plate provided in this embodiment, firstly, the electrical component heat exchange plate segment 20 is provided with an electrical component heat exchange channel 21. This channel 21 allows for heat exchange with the electrical component, preventing overheating and thus addressing the overheating risk issue of electrical components in related technologies. Secondly, the electrical component heat exchange plate segment 20 is provided with a convex structure 22. This convex structure 22 protrudes from the surface of the heat exchange plate away from the electrical component heat exchange channel 21, and a space is formed within the convex structure 22. This reduces the impact of the external environment on the electrical component, further improving the overheating risk issue of electrical components in related technologies.

[0028] Furthermore, since the area of ​​the heat exchange plate segment 20 of the electrical component covered by the convex hull structure 22 is S1, and the area of ​​the heat exchange plate segment 20 of the electrical component is S, 0.01≤S1 / S≤0.7, this design takes into account the balance between the heat exchange requirements of the electrical component and the blocking of the heat conduction path of the electrical compartment. It ensures that the heat conduction path between the electrical compartment and the outside world is effectively blocked without sacrificing the heat exchange area of ​​the heat exchange plate segment 20 of the electrical component and the electrical component, thus achieving effective suppression of overheating of the electrical component.

[0029] In addition, since the convex structure 22 protrudes from the surface of the heat exchange plate away from the heat exchange channel 21 of the electrical component, the convex structure 22 will not interfere with the electrical component, that is, the convex structure 22 will not affect the assembly of the electrical component.

[0030] Wherein, S1 / S can be 0.01, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, and other values ​​between 0.01 and 0.7.

[0031] It should be noted that the convex hull structure 22 can also improve the structural strength of the heat exchange plate and prevent it from being damaged by external impact. In addition, the heat exchange plate in this embodiment is assembled by brazing, and the convex hull structure 22 can also prevent the accumulation of gas inside the brazing weld.

[0032] It should be noted that the heat exchange plate can achieve either heating or cooling.

[0033] like Figure 2 As shown, in this embodiment, the convex hull structure 22 includes multiple convex hulls 221, which are spaced apart. By arranging multiple convex hulls 221 at intervals, the blocking effect of the convex hull structure 22 is made more uniform.

[0034] Furthermore, the spaced protrusions 221 can disperse external pressure, preventing the heat exchange plate from deforming or being damaged under harsh conditions such as high pressure or collision, ensuring the integrity of the heat exchange channel 21 of the electrical components and good contact between the electrical components and the heat exchange plate, and maintaining long-term stable thermal management performance.

[0035] Specifically, the convex hull 221 has a long strip structure, which provides better blocking and reinforcement effects.

[0036] like Figure 2 As shown, in this embodiment, the width of the convex bulge 221 is D, where 10mm ≤ D ≤ 30mm. Setting the width D of the convex bulge 221 within the range of 10mm to 30mm can balance structural strength and heat exchange efficiency.

[0037] The width D of the protrusion 221 is set within the range of 10mm to 30mm, providing sufficient stability for the protrusion 221 to maintain structural integrity under external pressure and protect electrical components from damage. Furthermore, the protrusion 221 does not excessively occupy the heat exchange area of ​​the heat exchange plate, thus achieving a balance between thermal barrier effect and structural strength.

[0038] Specifically, the width D of the convex hull 221 can be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, and other values ​​between 10mm and 30mm.

[0039] like Figure 2 As shown, in this embodiment, the heat exchange channel 21 of the electrical component and the convex structure 22 are arranged at intervals, and the distance between the convex structure 22 and the heat exchange channel 21 of the electrical component is L, 6mm≤L≤30mm.

[0040] The distance L between the heat exchange channel 21 of the electrical component and the convex structure 22 is set within the range of 6mm to 30mm, which can optimize the heat exchange and barrier effect. Under the premise of blocking the external temperature, the convex structure 22 will not affect the heat exchange of the electrical component by the heat exchange channel 21 of the electrical component.

[0041] Specifically, the distance L between the heat exchange channel 21 of the electrical component and the convex structure 22 can be 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, and other values ​​between 6mm and 30mm.

[0042] In this embodiment, the heat exchange channel 21 for the electrical components is a serpentine channel. The principle of the serpentine channel is to increase the contact area between the coolant and the electrical components by increasing the channel length and changing the flow path of the coolant, thereby improving the heat exchange effect.

[0043] Specifically, serpentine flow channels increase the contact area between the fluid and the heat exchange surface, thereby improving heat exchange efficiency. Compared to straight or other simple geometric flow channels, serpentine flow channels increase the length of the fluid path through multiple bends, allowing the coolant to contact electrical components over a longer distance and effectively remove more heat.

[0044] Furthermore, the serpentine design helps achieve uniform cooling of all parts of the electrical components. Because the fluid is distributed more evenly in the serpentine path, it can ensure that critical components and high-heat areas of the electrical components are adequately cooled, avoiding localized overheating, extending the service life of the electrical components, and ensuring the stability of the system.

[0045] The heat exchange channel 21 for electrical components is provided with convex structures 22 on both sides. The distribution of the convex structures 22 is more uniform, which further optimizes the thermal management performance.

[0046] like Figure 2 As shown, in this embodiment, the heat exchange channel 21 for the electrical components includes multiple first direct current channels 211 and multiple second direct current channels 212. The first direct current channels 211 and the second direct current channels 212 are arranged at an angle, and two adjacent first direct current channels 211 are connected by a second direct current channel 212. With this structure, the alternating arrangement of the first direct current channels 211 and the second direct current channels 212 causes the coolant to undergo multiple directional changes as it flows through the channel. This flow pattern promotes the formation of turbulence. Compared to laminar flow, turbulence can more effectively break the thermal boundary layer and accelerate the conduction of heat energy from the surface of the electrical components to the coolant, thereby significantly improving heat exchange efficiency.

[0047] like Figure 2 As shown, the convex hull structure 22 includes a first convex hull 222, which is provided at the interval between two adjacent first DC channel segments 211. The extension direction of the first convex hull 222 is the same as the extension direction of the first DC channel segment 211. The convex hull structure 22 also includes a second convex hull 223, which is located on the side of the second DC channel segment 212 away from the first DC channel segment 211. The extension direction of the second convex hull 223 is the same as the extension direction of the second DC channel segment 212. By adopting the above structure, as many convex hulls 221 as possible can be arranged while ensuring the heat exchange effect of the heat exchange channel 21 of the electrical components, so as to improve the effect of blocking external heat and further improve the structural strength of the heat exchange plate.

[0048] Furthermore, the first convex bulge 222 and the second convex bulge 223 will not affect the orientation of the heat exchange channel 21 of the electrical components.

[0049] like Figure 4 As shown, in this embodiment, the battery heat exchange plate segment 10 is provided with a battery heat exchange channel 11, which is connected to the electrical component heat exchange channel 21. The channel structure of the heat exchange plate is simpler and achieves coordinated cooling of the battery and electrical components.

[0050] like Figures 1 to 6 As shown, another embodiment of the present invention provides a battery pack, which includes a battery 30, electrical components and a heat exchange plate 40. The battery 30 is disposed in the battery heat exchange plate segment 10 of the heat exchange plate 40, and the electrical components are disposed in the electrical component heat exchange plate segment 20 of the heat exchange plate 40. The heat exchange plate 40 is the heat exchange plate provided above.

[0051] Therefore, this battery pack can also utilize the heat exchange channel 21 to exchange heat with the electrical components, preventing overheating and thus solving the problem of overheating risk in related technologies. Furthermore, the space formed within the convex structure 22 reduces the impact of the external environment on the electrical components, further mitigating the overheating risk. Finally, with 0.01≤S1 / S≤0.7, this design balances the heat exchange requirements of the electrical components with blocking the heat conduction path of the electrical compartment, ensuring that the heat conduction path between the electrical compartment and the outside environment is effectively blocked without sacrificing the heat exchange area between the heat exchange plate segment 20 and the electrical components, effectively suppressing overheating of the electrical components.

[0052] In this embodiment, the heat exchange plate 40 is disposed at the bottom of the battery 30.

[0053] The electrical components are connected to the heat exchange plate segment 20 via a heat-conducting component; and / or, the electrical components include a battery disconnection unit. By connecting the electrical components to the heat exchange plate segment 20 via the heat-conducting component, the excellent thermal conductivity of the heat-conducting component is utilized to rapidly transfer the heat generated by the electrical components to the heat exchange plate segment of the heat exchange plate, where the heat is carried away by the coolant, achieving efficient heat dissipation of the electrical components.

[0054] Specifically, the Battery Disconnect Unit (BDU) is a component of the Battery Management System (BMS) for electric vehicles. Its primary function is to disconnect the battery from the vehicle's electrical system in emergencies to ensure personal safety and prevent accidents such as fires caused by battery malfunctions. The BDU also monitors battery parameters such as current and voltage, making it a crucial component for battery safety management and protection.

[0055] Specifically, the thermal conductive component includes a thermally conductive silicone pad.

[0056] like Figure 5 As shown, the battery pack also includes a protective plate 50, which is located on the side of the heat exchange plate 40 away from the battery 30. The convex structure 22 of the heat exchange plate 40 is spaced apart from the protective plate 50. By adding the protective plate 50 as a physical barrier between the heat exchange plate 40 and the external environment, the heat exchange plate 40 is prevented from being damaged by external impacts.

[0057] Another embodiment of this utility model provides an electrical device, which includes a battery pack 60, which is the battery pack provided above. Therefore, this electrical device can also solve the problem of overheating risk of electrical components in related technologies, and will not be described in detail here.

[0058] Electrical devices include, but are not limited to, vehicles.

[0059] The apparatus provided by the embodiments has the following beneficial effects:

[0060] (1) By optimizing the liquid cooling channel layout at the location of the electrical compartment, especially by using a serpentine channel to increase the cooling area, the temperature rise of electrical components during high current charging and discharging can be effectively controlled, avoiding overheating that leads to shortened lifespan and performance degradation of electrical components, thereby ensuring the stability and safety of the entire battery pack.

[0061] (2) The convex structure 22 provided on the heat exchange plate 40 not only reduces the heat exchange between the electrical components and the external environment, but also improves the structural strength of the heat exchange plate 40 and prevents the accumulation of internal brazing gas.

[0062] (3) By making 0.01≤S1 / S≤0.7, this design takes into account the balance between the heat exchange requirements of electrical components and the heat conduction path of the electrical chamber, ensuring that the heat conduction path between the electrical chamber and the outside world is effectively blocked without sacrificing the heat exchange plate segment 20 of the electrical components and the heat exchange area of ​​the electrical components, thus achieving effective suppression of overheating of electrical components.

[0063] The battery in this application is a secondary battery, also known as a rechargeable battery or storage battery, which refers to a battery that can be used again after being discharged by recharging to activate the active materials.

[0064] Typically, a secondary battery includes electrode components, electrolyte, and an outer casing. The electrode components consist of a positive electrode, a negative electrode, and a separator. The electrode components and electrolyte are assembled inside the outer casing. During charging and discharging, active ions (such as lithium ions) move back and forth between the positive and negative electrode plates, inserting and extracting. The separator, positioned between the positive and negative electrode plates, primarily prevents short circuits while allowing active ions to pass through. The electrolyte, located between the positive and negative electrode plates, mainly serves to conduct active ions.

[0065] As an example, the preparation process of a secondary battery is as follows: the positive electrode, separator, and negative electrode are stacked in sequence, with the separator acting as a separator between the positive and negative electrodes. Then, the electrodes are wound or stacked to obtain an electrode assembly. The electrode assembly is placed in an outer packaging shell, dried, and then injected with electrolyte. After vacuum sealing, settling, formation, and shaping, a secondary battery is obtained.

[0066] A positive electrode typically includes a positive current collector and a positive electrode film layer disposed on at least one side of the positive current collector. The positive electrode film layer includes a positive electrode active material, which can be any existing publicly disclosed positive electrode active material or a positive electrode active material optimized based on existing materials.

[0067] This application does not impose any particular restrictions on the type of positive electrode active material for the positive electrode sheet. As an example, the positive electrode active materials in this application include lithium-containing transition metal oxides (e.g., LiCoO2), phosphides (e.g., LiFePO4), or lithium intercalation compounds (e.g., positive electrode materials for binary lithium batteries such as lithium cobalt oxide and lithium nickel oxide, or positive electrode materials for ternary lithium batteries such as lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide).

[0068] In some embodiments, the positive electrode sheet can be prepared by dispersing the above-mentioned components for preparing the positive electrode sheet, such as positive electrode active material, conductive agent, binder and any other components, in a solvent (e.g., N-methylpyrrolidone) to form a positive electrode slurry; coating the positive electrode slurry onto the positive electrode current collector, and then obtaining the positive electrode sheet after drying, rolling, cutting and other processes.

[0069] In this application, the binder is used to improve the adhesion between positive electrode active material particles and the adhesion between the positive electrode active material and the current collector. This application does not impose any particular limitation on the type of binder for the positive electrode sheet; the binder can be any conventional choice in the battery industry. Specifically, the binder can be at least one of polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polyvinyl alcohol (PVA), styrene-butadiene rubber (SBR), polyacrylonitrile (PAN), polyimide (PI), polyacrylic acid (PAA), polyacrylate, polyolefin, sodium carboxymethyl cellulose (CMC), or sodium alginate.

[0070] This application does not impose any particular restrictions on the positive electrode current collector, as long as it is conductive and will not cause adverse chemical changes in the battery, and can be made of, for example: stainless steel, aluminum, nickel, titanium, sintered carbon; or aluminum or stainless steel that has been surface treated with one of carbon, nickel, titanium, silver, etc.

[0071] The negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on at least one side of the negative electrode current collector. The negative electrode active material layer comprises a silicon-based material. This application does not specifically limit the type of silicon-based material; the silicon-based material can be a silicon-carbon material and / or a silicon-oxygen material. As an example, the silicon-based material can be one or more of silicon-carbon composite negative electrode materials, silicon suboxide negative electrode materials, modified silicon suboxide negative electrode materials, and nano-silicon materials. The negative electrode active material in the negative electrode active material layer may also optionally include one or more of artificial graphite, natural graphite, and hard carbon.

[0072] In some embodiments, the negative electrode sheet can be prepared by dispersing the components used to prepare the negative electrode sheet, such as the negative electrode active material, conductive agent, binder and any other components, in a solvent (e.g., water) to form a negative electrode slurry; coating the negative electrode slurry onto the negative electrode current collector, and then obtaining the negative electrode sheet after drying, rolling, cutting and other processes.

[0073] This application does not specifically limit the type of negative electrode conductive agent. In some embodiments, as an example, the negative electrode conductive agent can be one or more of conventional negative electrode conductive agents such as acetylene black and carbon nanotubes.

[0074] This application does not impose specific restrictions on the type of negative electrode binder. In some embodiments, as an example, the binder may be one or more of conventional negative electrode binders such as styrene-butadiene rubber latex (SBR), polyvinylidene fluoride (PVDF), polyacrylic acid (PAA), and sodium carboxymethyl cellulose (CMC). In this application, the binder is preferably PAA, SBR, and CMC, and the mass ratio of PAA, SBR, and CMC may be (34.38-74.29):(20-59.38):(5-7.14).

[0075] This application does not impose specific limitations on the type of negative electrode current collector. In some embodiments, as an example, the negative electrode current collector can be one of the conventional negative electrode current collectors such as copper foil.

[0076] The electrolyte acts as a conductor of ions between the positive and negative electrodes. This application does not impose specific limitations on the type of electrolyte; it can be selected according to requirements. As an example, the electrolyte in this application can be any electrolyte suitable for electrochemical energy storage devices in the art. The electrolyte includes an electrolyte and a solvent; the electrolyte typically includes a lithium salt, and additives may also be added to the electrolyte.

[0077] Specifically, the lithium salt includes at least one selected from lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), lithium perchlorate (LiClO4), lithium hexafluoroarsenate (LiAsF6), lithium bis(fluorosulfonyl)imide (LiFSI), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium trifluoromethanesulfonate (LiTFS), lithium difluorooxalate borate (LiDFOB), lithium dioxalate borate (LiBOB), lithium difluorophosphate (LiPO2F2), lithium difluorodioxalate phosphate (LiDFOP), and lithium tetrafluorooxalate phosphate (LiTFOP). The concentration of the electrolyte in the electrolyte solution can be 0.5–5 mol / L.

[0078] Specifically, the solvent includes at least one of ethylene carbonate (EC), propylene carbonate (PC), methyl ethyl carbonate (EMC), diethyl carbonate (DEC), dimethyl carbonate (DMC), dipropyl carbonate (DPC), methyl propyl carbonate (MPC), ethyl propyl carbonate (EPC), butyl carbonate (BC), fluoroethylene carbonate (FEC), methyl formate (MF), methyl acetate (MA), ethyl acetate (EA), propyl acetate (PA), methyl propionate (MP), ethyl propionate (EP), propyl propionate (PP), methyl butyrate (MB), ethyl butyrate (EB), 1,4-butyrolactone (GBL), sulfolane (SF), dimethyl sulfone (MSM), methyl ethyl sulfone (EMS), and diethyl sulfone (ESE).

[0079] In some implementations, as an example, the additive may be a conventional electrolyte additive such as fluoroethylene carbonate (FEC), chloroethylene carbonate (CEC), or vinylene carbonate (VC).

[0080] In some embodiments, the secondary battery also includes a separator. This application does not impose any particular limitation on the type of separator; any known porous separator with good chemical and mechanical stability can be selected.

[0081] In some embodiments, as an example, the diaphragm can be one of PP, PE, or PP / PF; the diaphragm can also be a structure in which a coating is formed on the surface of the base film, wherein the base film coating can be one of PP, PE, or PP / PF, and the coating can be an inorganic coating and / or an organic coating. The inorganic coating can be selected from alumina ceramic layers, osmium silicate, etc., and the organic coating can be selected from PVDF, etc.

[0082] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0083] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0084] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0085] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0086] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0087] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat exchange plate, characterized in that, The heat exchange plate includes a battery heat exchange plate segment (10) and an electrical component heat exchange plate segment (20). The electrical component heat exchange plate segment (20) is provided with an electrical component heat exchange channel (21) and a convex structure (22). The convex structure (22) protrudes from the surface of the heat exchange plate away from the electrical component heat exchange channel (21). The area of ​​the convex structure (22) covering the electrical component heat exchange plate segment (20) is S1, and the area of ​​the electrical component heat exchange plate segment (20) is S, where 0.01≤S1 / S≤0.

7.

2. The heat exchange plate according to claim 1, characterized in that, The convex hull structure (22) includes multiple convex hulls (221), which are spaced apart.

3. The heat exchange plate according to claim 2, characterized in that, The convex hull (221) is a long strip structure.

4. The heat exchange plate according to claim 3, characterized in that, The width of the convex hull (221) is D, 10mm≤D≤30mm.

5. The heat exchange plate according to claim 1, characterized in that, The heat exchange channel (21) of the electrical component and the convex structure (22) are arranged at intervals, and the distance between the convex structure (22) and the heat exchange channel (21) of the electrical component is L, 6mm≤L≤30mm.

6. The heat exchange plate according to any one of claims 1 to 5, characterized in that, The heat exchange channel (21) of the electrical component is a serpentine channel.

7. The heat exchange plate according to claim 6, characterized in that, The convex bulge structure (22) is provided on both sides of the heat exchange channel (21) of the electrical component.

8. The heat exchange plate according to claim 6, characterized in that, The heat exchange channel (21) of the electrical components includes a plurality of first DC channel segments (211) and a plurality of second DC channel segments (212). The first DC channel segments (211) and the second DC channel segments (212) are arranged at an angle, and two adjacent first DC channel segments (211) are connected through a second DC channel segment (212).

9. The heat exchange plate according to claim 8, characterized in that, The convex hull structure (22) includes a first convex hull (222), and the first convex hull (222) is provided at the interval between two adjacent first DC channel segments (211). The extension direction of the first convex hull (222) is the same as the extension direction of the first DC channel segment (211).

10. The heat exchange plate according to claim 8, characterized in that, The convex hull structure (22) further includes a second convex hull (223), which is located on the side of the second DC channel segment (212) away from the first DC channel segment (211), and the extension direction of the second convex hull (223) is the same as the extension direction of the second DC channel segment (212).

11. The heat exchange plate according to any one of claims 1 to 5, characterized in that, The battery heat exchange plate section (10) is provided with a battery heat exchange channel (11), which is connected to the electrical component heat exchange channel (21).

12. A battery pack, characterized in that, The battery pack includes a battery (30), electrical components, and a heat exchange plate (40). The battery (30) is disposed corresponding to the battery heat exchange plate segment (10) of the heat exchange plate (40), and the electrical components are disposed corresponding to the electrical component heat exchange plate segment (20) of the heat exchange plate (40). The heat exchange plate (40) is the heat exchange plate according to any one of claims 1 to 11.

13. The battery pack according to claim 12, characterized in that, The electrical component is connected to the heat exchange plate section (20) of the electrical component via a heat-conducting component; and / or, The electrical components include a battery disconnect unit.

14. The battery pack according to claim 12, characterized in that, The battery pack also includes a protective plate (50), which is located on the side of the heat exchange plate (40) away from the battery (30), and the convex structure (22) of the heat exchange plate (40) is spaced apart from the protective plate (50).

15. An electrical appliance, characterized in that, The electrical device includes a battery pack (60), which is the battery pack according to any one of claims 11 to 14.

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