Heat exchange device, battery pack structure and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a heat exchange device, a battery pack structure and electric equipment, the heat exchange device at least comprises a runner plate and a heat exchange plate connected with the runner plate; the heat exchange plate comprises a heat exchange part and a connecting part connected with the heat exchange part, the heat exchange part is suitable for being attached to the battery, an arched part is formed on the connecting part, and the arched part is arranged in a protruding mode towards the side away from the runner plate. The heat exchange device provided by the embodiment of the utility model can avoid or reduce battery short circuit caused by contact of condensate water with the battery, so that the safety performance of the battery pack can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a heat exchange device, a battery pack structure and an electric equipment. BACKGROUND

[0002] The battery pack is a core component of a new energy vehicle, and its safety directly affects the safety performance of the new energy vehicle.

[0003] In the related art, a heat exchange device is arranged inside the battery pack, and the heat exchange device is usually integrated and installed together with a battery tray. In this way, the heat exchange device can provide cooling for the battery under high-temperature or long-time charging and discharging conditions of the battery, so as to ensure that the battery can be normally used. However, during use of the battery, condensate water is usually generated inside the battery pack, which causes short circuit of the battery and affects the reliability of the battery.

[0004] At present, how to improve the reliability of the battery has become a problem that cannot be ignored. Invention content

[0005] The present application provides a heat exchange device, a battery pack structure and an electric equipment, which can avoid or reduce the condensate water from contacting the battery to cause short circuit of the battery, and thus can improve the safety performance of the battery pack.

[0006] A first aspect of the present application provides a heat exchange device for cooperating with a battery pack, the battery pack comprising a battery pack shell and a battery located in the battery pack shell, and the heat exchange device at least comprising:

[0007] a flow channel plate and a heat exchange plate connected to the flow channel plate;

[0008] the heat exchange plate comprising a heat exchange portion and a connecting portion connected to the heat exchange portion, and the heat exchange portion being adapted to be in close contact with the battery;

[0009] an arch portion is formed on the connecting portion, and the arch portion is protrudingly arranged towards a side away from the flow channel plate.

[0010] In the present application, the heat exchange plate of the heat exchange device is designed to comprise a heat exchange portion and a connecting portion, and the connecting portion not in close contact with the battery is provided with an arch portion protruding towards a side away from the flow channel plate. In this way, after condensate water is generated on the heat exchange plate, the condensate water moves along the surface of the side of the heat exchange plate away from the flow channel plate to the lowest part of the arch portion under the combined action of gravity and adhesion, and finally drops to a position away from the battery, which can avoid or reduce the risk of short circuit or high-voltage arc, and thus can improve the safety performance of the battery pack.

[0011] In a possible implementation, the arch portion comprises a first segment and a second segment connected to each other, and the first segment is arranged closer to the heat exchange portion than the second segment along the arrangement direction of the connecting portion and the heat exchange portion.

[0012] The first segment and the heat exchange plate form a first included angle.

[0013] In a possible implementation, the second segment and the heat exchange plate form a second included angle, and the first included angle is smaller than the second included angle.

[0014] In a possible implementation, the first included angle ranges from 15 degrees to 30 degrees.

[0015] In a possible implementation, the first segment and the second segment form an included angle therebetween.

[0016] In a possible implementation, the arch portion further comprises a third segment between the first segment and the second segment, one end of the third segment is connected to the first segment, and the other end of the third segment is connected to the second segment.

[0017] In a possible implementation, the third segment is in the shape of a circular arc.

[0018] In a possible implementation, at least one side of the first segment away from the flow channel plate is provided with a hydrophobic coating.

[0019] In a possible implementation, at least one side of the connecting portion away from the flow channel plate is provided with a thermal insulation coating.

[0020] In a possible implementation, a flow channel for accommodating a cooling medium is formed between the flow channel plate and the heat exchange plate.

[0021] The second aspect of the present application provides a battery pack structure, comprising a battery pack and the heat exchange device described above.

[0022] The battery pack comprises a battery pack shell and a battery in the battery pack shell, and the heat exchange device is arranged in the battery pack shell and used for heat exchange with the battery.

[0023] In a possible implementation, the heat exchange device is connected to the battery pack shell, and the heat exchange device serves as a top cover of the battery pack shell.

[0024] The battery pack shell and the heat exchange device jointly form an accommodation space for accommodating at least the battery.

[0025] The embodiments of the present application can improve the safety performance of the battery pack by arranging the heat exchange device in the battery pack.

[0026] In a possible implementation, the battery comprises: a battery body, one end of the battery body is further provided with a pole;

[0027] The side of the pole away from the battery body is further provided with a protective cover, and the protective cover covers the pole.

[0028] In a possible implementation, the battery pack shell comprises a side plate and a bottom plate connected with the side plate; the bottom plate is opposite to the heat exchange device;

[0029] The bottom plate is provided with a groove at a position corresponding to the arch part on the heat exchange device.

[0030] In a possible implementation, the lowest part of the arch part is projected onto the bottom plate and located in the groove.

[0031] In a possible implementation, the battery further comprises: an absorbing member; at least part of the absorbing member is located in the groove.

[0032] In a possible implementation, one end of the absorbing member is located in the groove, and the other end of the absorbing member is connected with a protective cover, and the protective cover covers the pole of the battery.

[0033] In a possible implementation, the absorbing member comprises a first part and a second part connected with each other, and the first part is located in the groove.

[0034] One end of the second part is connected with the first part, and the other end of the second part is connected with the protective cover.

[0035] A third included angle is formed between the first part and the second part.

[0036] In a possible implementation, the third included angle ranges from 90 degrees to 135 degrees.

[0037] The third aspect of the application provides a power consuming device comprising the battery pack structure.

[0038] The embodiments of the application can improve the use performance of the power consuming device by arranging the battery pack structure in the power consuming device. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application. Those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0040] Figure 1 A structural schematic view of a battery pack structure provided by an embodiment of the present application;

[0041] Figure 2 A structural schematic view of a battery pack in a battery pack structure provided by an embodiment of the present application;

[0042] Figure 3 Another structural schematic view of a battery pack in a battery pack structure provided by an embodiment of the present application;

[0043] Figure 4 Still another structural schematic view of a battery pack in a battery pack structure provided by an embodiment of the present application;

[0044] Figure 5 Another structural schematic view of a battery pack structure provided by an embodiment of the present application;

[0045] Figure 6 Still another structural schematic view of a battery pack structure provided by an embodiment of the present application;

[0046] Figure 7 Still another structural schematic view of a battery pack structure provided by an embodiment of the present application;

[0047] Figure 8 Still another structural schematic view of a battery pack structure provided by an embodiment of the present application.

[0048] Reference signs:

[0049] 100 - heat exchange device

[0050] 110 - flow channel plate

[0051] 120 - heat exchange plate

[0052] 121 - heat exchange part; 122 - connecting part

[0053] 1221 - arch part; 1222 - first section; 1223 - second section; 1224 - third section

[0054] 200 - battery pack structure

[0055] 210 - battery pack

[0056] 211 - battery pack shell; 2111 - side plate; 2112 - bottom plate; 2113 - groove; 2114 - bottom guard plate

[0057] 212 - battery; 2121 - battery body; 2122 - support; 2123 - protection cover; 2124 - sampling assembly

[0058] 213 - containing space;

[0059] 214 - absorbing member;

[0060] 2141 - first portion; 2142 - second portion;

[0061] 215 - clamping structure; 2151 - aperture;

[0062] 220 - first adhesive member; 230 - second adhesive member;

[0063] A1 - first included angle; A2 - second included angle; A3 - third included angle. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0065] With the development of new energy, more and more fields use new energy as power. Due to the advantages of high energy density, recyclable charging, safety and environmental protection, batteries are widely used in new energy vehicles, consumer electronics, energy storage systems and other fields.

[0066] The power battery is the core component of the new energy vehicle, and its safety will directly affect the safety performance of the new energy vehicle.

[0067] In the related art, the battery pack is internally provided with a heat exchange device, which is usually integrated and installed together with the battery tray. In this way, the heat exchange device can provide cooling for the battery under high temperature or long-time charging and discharging conditions of the battery, so as to ensure that the battery can be normally used. However, during the use of the battery, condensate water is usually generated in the interior of the battery pack, which causes short circuit of the battery and affects the reliability of the battery. For example, there is a certain probability that the condensate water drops on the electronic devices on the battery, causing short circuit damage and affecting the use safety of the battery pack.

[0068] To solve the above problems, the embodiment of the present application provides a new heat exchange device, a battery pack structure and an electric equipment. The heat exchange device at least comprises a flow channel plate and a heat exchange plate connected with the flow channel plate; the heat exchange plate comprises a heat exchange part and a connecting part, the heat exchange part is attached to the battery, one end of the connecting part is connected with the heat exchange part, and the other end of the connecting part is connected with the battery pack shell; an arch part is formed on the connecting part, and the arch part is protrudingly arranged towards the side away from the flow channel plate. The heat exchange device provided by the embodiment of the present application can avoid or reduce the contact of the condensed water with the battery to cause the short circuit of the battery, thereby improving the safety performance of the battery pack.

[0069] The heat exchange device provided by the embodiment of the present application and the battery pack structure and the electric equipment with the heat exchange device are described in detail below with reference to the drawings.

[0070] Figure 1 A structural schematic diagram of the battery pack structure provided by the embodiment of the present application. Figure 2 A structural schematic diagram of the battery pack in the battery pack structure provided by the embodiment of the present application. Figure 3 Another structural schematic diagram of the battery pack in the battery pack structure provided by the embodiment of the present application. Figure 4 Still another structural schematic diagram of the battery pack in the battery pack structure provided by the embodiment of the present application. Figure 5 Another structural schematic diagram of the battery pack structure provided by the embodiment of the present application. Figure 6 Still another structural schematic diagram of the battery pack structure provided by the embodiment of the present application. Figure 7 Still another structural schematic diagram of the battery pack structure provided by the embodiment of the present application. Figure 8 Still another structural schematic diagram of the battery pack structure provided by the embodiment of the present application.

[0071] Referring to Figures 1 to 5 The embodiment of the present application provides a heat exchange device 100 for cooperating with a battery pack 210, wherein the battery pack 210 can comprise a battery pack shell 211 and a battery 212 located in the battery pack shell 211.

[0072] In the embodiment of the present application, the heat exchange device 100 can be a liquid cooling plate or a direct cooling plate, and the embodiment of the present application does not limit this and is not limited to the above examples. Taking the heat exchange device 100 as a liquid cooling plate as an example, in the embodiment of the present application, the heat exchange device 100 can be a harmonica cooling plate or a brazing cooling plate.

[0073] In the embodiment of the present application, as shown in Figure 1 and Figure 2 The heat exchange device 100 at least comprises a flow channel plate 110 and a heat exchange plate 120, wherein the heat exchange plate 120 can be connected with the flow channel plate 110.

[0074] Specifically, in some embodiments, when the heat exchange device 100 is a brazed cold plate, the flow channel plate 110 and the heat exchange plate 120 can be connected through a brazing process.

[0075] In other embodiments, when the heat exchange assembly is a harmonica cold plate, the flow channel plate is a harmonica tube with a flow channel, and the heat exchange plate is a metal flat plate attached between the harmonica tube and the battery.

[0076] In other embodiments, when the heat exchange assembly is a harmonica cold plate, the heat exchange plate is a part of the cold plate of the harmonica tube close to the battery, the flow channel plate is a part of the cold plate of the harmonica tube away from the battery, and the flow channel plate and the heat exchange plate are integrally formed.

[0077] In the embodiments of the present application, the heat exchange plate 120 can include a heat exchange portion 121 and a connecting portion 122, wherein the connecting portion 122 is connected to the heat exchange portion 121, and the heat exchange portion 121 can be adapted to be attached to the battery 212. Wherein, the heat exchange portion 121 can be adapted to be attached to the battery 212 can avoid the generation of condensate between the heat exchange portion 121 and the battery 212, thereby improving the safety of the battery.

[0078] Specifically, in some embodiments, one end of the connecting portion 122 can be connected to the heat exchange portion 121, and the other end of the connecting portion 122 can be connected to the battery pack shell 211.

[0079] Wherein, it can be understood that the extension direction of the heat exchange device 100 is the same as the length direction of the battery 212. The heat exchange portion 121 of the heat exchange plate 120 can be connected to the battery 212 through the first adhesive 220 to achieve heat exchange. Moreover, the connecting portion 122 of the heat exchange plate 120 and the battery pack shell 211 can be sealingly connected, thereby ensuring that a better heat exchange environment can be provided.

[0080] It should be noted that in the embodiments of the present application, the first adhesive 220 can be structural glue, heat-conducting glue, etc., and the embodiments of the present application are not limited thereto and are not limited to the above examples.

[0081] In other embodiments, the other end of the connecting portion 122 can not be connected to the battery pack shell 211, but only be arranged between the battery and the battery pack shell.

[0082] In the embodiments of the present application, the heat exchange plate 120 can adopt a flat plate structure, so that the connection between the heat exchange device 100 and the battery 212 can be reliable and the heat exchange can be uniform.

[0083] In addition, in the embodiments of the present application, an arch portion 1221 can be formed on the connecting portion 122, and the arch portion 1221 is protrudingly arranged towards the side away from the flow channel plate 110.

[0084] It should be noted that the arch portion 1221 can be made by processes such as rolling or stamping, and the embodiments of the present application are not limited thereto and are not limited to the above examples.

[0085] By designing the heat exchange plate 120 of the heat exchange device 100 to include a heat exchange portion 121 and a connecting portion 122, and forming an arch portion 1221 on the connecting portion 122 of the heat exchange plate 120 that is not in contact with the battery 212, the arch portion 1221 is protruding towards the side away from the flow channel plate 110. In this way, after the condensate is generated on the heat exchange plate 120, the condensate moves along the surface of the side of the heat exchange plate 120 away from the flow channel plate 110 to the lowest point of the arch portion 1221 under the combined action of gravity and adhesion, and finally drops to a position away from the battery 212, which can avoid or reduce the risk of short circuit or high-voltage arc, and thus can improve the safety performance of the battery pack 210.

[0086] In the embodiments of the present application, the arch portion 1221 can include a first segment 1222 and a second segment 1223, wherein the first segment 1222 and the second segment 1223 are connected, and along the arrangement direction of the connecting portion 122 and the heat exchange portion 121, the first segment 1222 is arranged closer to the heat exchange portion 121 than the second segment 1223.

[0087] In the embodiments of the present application, a first included angle A1 can be formed between the first segment 1222 and the heat exchange plate 120.

[0088] In the embodiments of the present application, a second included angle A2 can be formed between the second segment 1223 and the heat exchange plate 120, and the first included angle A1 can be smaller than the second included angle A2.

[0089] Since the first segment 1222 is arranged closer to the battery 212 than the second segment 1223, the first included angle A1 formed between the first segment 1222 and the flow channel plate 110 is smaller than the second included angle A2 formed between the second segment 1223 and the flow channel plate 110, and the lowest point of the arch portion 1221 is relatively farther away from the battery 212. In this way, under the combined action of gravity and adhesion, the condensate moves along the surface of the side of the heat exchange plate 120 away from the flow channel plate 110 to the lowest point of the arch portion 1221, and the lowest point of the arch portion 1221 is relatively farther away from the battery 212, so that the condensate can drop to a position farther away from the battery 212, which can further avoid or reduce the risk of short circuit or high-voltage arc, and thus can further improve the safety performance of the battery pack 210.

[0090] In the embodiments of the present application, the first included angle A1 can range from 15 degrees to 30 degrees. For example, the first included angle A1 can be 15 degrees, 20 degrees, 25 degrees, or 30 degrees, and the like, and the embodiments of the present application are not limited thereto and are not limited to the above examples.

[0091] It should be noted that the numerical values and numerical ranges involved in the present application are approximate values, and there can be a certain range of error due to the manufacturing process, which can be considered negligible by those skilled in the art.

[0092] Specifically, in the embodiments of the present application, the structural design of the arch portion 1221 can include but is not limited to the following two possible implementation manners:

[0093] One possible implementation manner is that an included angle can be formed between the first segment 1222 and the second segment 1223. At this time, the side of the arch portion 1221 away from the flow channel plate 110 is designed as an inclined surface (see FIGS. 1 and 2). Figure 1 and Figure 2 as shown).

[0094] Another possible implementation manner is that the arch portion 1221 further includes a third segment 1224, wherein the third segment 1224 is located between the first segment 1222 and the second segment 1223, one end of the third segment 1224 is connected with the first segment 1222, and the other end of the third segment 1224 is connected with the second segment 1223. The third segment 1224 is in the shape of a circular arc. At this time, the side of the arch portion 1221 away from the flow channel plate 110 is designed as a curved surface (see FIGS. 3 and 4). Figures 6 to 8 as shown).

[0095] In addition, in some embodiments, a hydrophobic coating can be provided on the side of at least the first segment 1222 away from the flow channel plate 110. Exemplarily, the hydrophobic coating can be polytetrafluoroethylene or the like. By providing the hydrophobic coating on the side of at least the first segment 1222 away from the flow channel plate 110, it can be ensured that the condensed water slides along the surface of the heat exchange plate 120 to the bottom of the arch portion 1221 under the action of self-gravity during the growth process.

[0096] In some other embodiments, a heat preservation coating can also be provided on the side of at least part of the connecting portion 122 away from the flow channel plate 110. By providing the heat preservation coating on the side of at least part of the connecting portion 122 away from the flow channel plate 110, it can be better avoided that the condensed water is generated on the side of the connecting portion 122 away from the flow channel plate 110.

[0097] In the embodiments of the present application, a flow channel is formed between the flow channel plate 110 and the heat exchange plate 120, and the flow channel is used to accommodate a cooling medium, so as to realize the cooling function of the heat exchange device 100.

[0098] The embodiments of the present application also provide a battery pack structure 200, which can include a battery pack 210 and the heat exchange device 100 described above, wherein the battery pack 210 can include a battery pack shell 211 and a battery 212 located in the battery pack shell 211, and the heat exchange device 100 is used for heat dissipation of the battery pack 210.

[0099] It should be noted that in some embodiments, the heat exchange device 100 can be connected to the battery pack housing 211, and the heat exchange device 100 can serve as the top cover of the battery pack housing 211. The battery pack housing 211 and the heat exchange device 100 can together form at least a receiving space 213 for accommodating the battery 212.

[0100] It is understandable that the solution of integrating the heat exchange device 100 into the top cover of the battery pack housing 211 can improve the energy density of the battery pack, thus reducing the cost of the battery pack while increasing the integration of components.

[0101] By incorporating the aforementioned heat exchange device 100 into the battery pack 210, the safety performance of the battery pack 210 can be improved in this embodiment of the application.

[0102] In this embodiment of the application, the battery 212 may include: a battery body 2121, one end of which is provided with an electrode post, and a protective cover 2123 is provided on the side of the electrode post away from the battery body 2121. The protective cover 2123 can cover the outer periphery of the electrode post and can play a protective role, preventing condensate from flowing to the electrode post and causing adverse effects on the electrode post.

[0103] In one possible implementation, the battery 212 may include a bracket 2122, wherein the bracket 2122 is connected to one end of the battery body 2121, and a protective cover 2123 is disposed on the side of the bracket 2122 away from the battery body 2121, and the protective cover 2123 is connected to the bracket 2122.

[0104] In the embodiments of this application, such as Figure 3 and Figure 5 As shown, there is a gap 2151 between the protective cover 2123 and the bracket 2122, and the protective cover 2123 and the bracket 2122 can be connected by a snap-fit ​​structure 215. This facilitates assembly. It should be noted that the snap-fit ​​structure 215 can be a buckle, a tenon, a protrusion, etc., and the embodiments of this application are not limited to this, nor are they limited to the above examples.

[0105] In some other embodiments, the protective cover 2123 and the bracket 2122 can be connected in other ways. This application does not limit this, nor is it limited to the above examples.

[0106] For example, in some embodiments, the protective cover 2123 and the bracket 2122 can be an integral design, which can eliminate the gap at the connection between the protective cover 2123 and the bracket 2122, thereby preventing condensation from entering.

[0107] In some embodiments, the battery 212 may further include a sampling component 2124, wherein the sampling component 2124 can be used to collect temperature signals or stress signals, and the sampling component 2124 is located between the protective cover 2123 and the bracket 2122.

[0108] In this embodiment of the application, the battery pack housing 211 may include a side plate 2111 and a bottom plate 2112, wherein the bottom plate 2112 is connected to the side plate 2111 and is opposite to the heat exchange device 100.

[0109] In this embodiment of the application, a groove 2113 may be provided on the base plate 2112 at a position corresponding to the arched portion 1221 on the heat exchange device 100.

[0110] In this way, the condensate dripping from the arched portion 1221 on the heat exchanger 100 can enter the groove 2113 on the base plate 2112, preventing the condensate from dripping onto the base plate 2112 and then flowing into the connection gap between the protective cover 2123 and the bracket 2122.

[0111] In one possible implementation, the projection area of ​​the lowest point of the arch 1221 on the base plate 2112 is located within the projection area of ​​the groove 2113 on the base plate 2112.

[0112] In this embodiment, the battery pack structure 200 may further include an absorber 214, wherein at least a portion of the absorber 214 may be located within the groove 2113. After condensate dripping from the arch 1221 on the heat exchanger 100 enters the groove 2113 on the base plate 2112, the absorber 214 can absorb the condensate, preventing excessive accumulation and overflow from the groove 2113.

[0113] In addition, in this embodiment, one end of the absorber 214 may be located within the groove 2113, and the other end of the absorber 214 may be connected to the protective cover 2123. This further avoids the problem that when the absorber 214 absorbs too much condensate, excess condensate will still enter the connection gap between the protective cover 2123 and the bracket 2122 along the base plate 2112.

[0114] In this embodiment, the base plate 2112 may be interconnected with the battery 212 via the second adhesive 230.

[0115] It should be noted that in the embodiments of this application, the second adhesive 230 can be structural adhesive, etc., and the embodiments of this application do not limit it, nor are they limited to the above examples.

[0116] It is understood that, in one possible implementation, the battery pack housing 211 may also include a bottom protective plate 2114, wherein the bottom protective plate 2114 is connected to the side plate 2111 and is disposed on the side of the bottom plate 2112 away from the heat exchange device 100.

[0117] In this embodiment of the application, the absorbent 214 may include a first part 2141 and a second part 2142 connected together, wherein the first part 2141 is located in the groove 2113, one end of the second part 2142 is connected to the first part 2141, and the other end of the second part 2142 is connected to the protective cover 2123.

[0118] It should be noted that, in the embodiments of this application, the first part 2141 can be bonded to the groove 2113, and the second part 2142 can be bonded to the protective cover 2123.

[0119] In this embodiment of the application, a third included angle A3 can be formed between the first part 2141 and the second part 2142.

[0120] In this embodiment, the angle range of the third included angle A3 can be 90 degrees to 135 degrees. By limiting the angle range of the third included angle A3, it is possible to avoid the absorption element 214 failing to connect with the protective cover 2123 when its own weight is large after absorbing moisture, thus preventing condensate from splashing into the connection gap between the protective cover 2123 and the bracket 2122.

[0121] For example, the third included angle A3 can be 90 degrees, 105 degrees, 120 degrees or 135 degrees, etc. The embodiments of this application do not limit this, nor are they limited to the above examples.

[0122] Furthermore, this application embodiment also provides an electrical device, which may include at least the battery pack structure 200 described above.

[0123] The electrical equipment of this utility model can be conventional electrical equipment in the field, such as power equipment (e.g., electric vehicles), electronic equipment (e.g., computers, mobile phones, digital cameras, printers, fax machines, etc.), wearable devices (e.g., watches, bracelets, VR glasses, etc.), and home appliances (e.g., air conditioners, refrigerators, washing machines, microwave ovens, etc.), etc., and there are no particular limitations.

[0124] Taking a vehicle as an example, the vehicle can be a sedan, bus, or truck. For instance, the vehicle can be an electric vehicle (EV), a pure electric vehicle / battery electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle, or any vehicle equipped with a battery 212.

[0125] The vehicle may also include a body, an axle, and a motor, wherein the battery pack 210, the axle, and the motor may all be mounted on the body. The battery pack 210 may be electrically connected to the motor, and the motor may be connected to the axle. The battery pack 210 can supply power to the motor, enabling the motor to rotate, which in turn drives the axle to rotate, thus allowing the vehicle to move.

[0126] The vehicle body may include a vehicle chassis and a body mounted on the chassis. The body may have a passenger compartment, which may include a driver's seat, passenger seats, etc., where the driver can operate the vehicle. For example, the vehicle body may also include structural components such as a steering wheel, clutch, and brakes to enable the vehicle to perform its full functions; this application does not impose any limitations on these components.

[0127] By incorporating the aforementioned battery pack structure 200 into the electrical equipment, the performance of the electrical equipment can be improved.

[0128] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0129] In the description of this utility model, it should be understood that the terms "may include" and "have" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0130] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat exchange device for use with a battery pack, the battery pack comprising a battery pack housing and a battery located within the battery pack housing, characterized in that, The heat exchange device includes at least: The flow channel plate and the heat exchange plate connected to the flow channel plate; The heat exchange plate includes a heat exchange section and a connecting section connected to the heat exchange section, the heat exchange section being adapted to be in contact with the battery; An arched portion is formed on the connecting portion, and the arched portion protrudes toward the side away from the flow channel plate.

2. The heat exchange device according to claim 1, characterized in that, The arched portion includes a first section and a second section connected together. Along the arrangement direction of the connecting portion and the heat exchange portion, the first section is positioned closer to the heat exchange portion than the second section. The first segment forms a first included angle with the heat exchange plate.

3. The heat exchange device according to claim 2, characterized in that, The second segment forms a second included angle with the heat exchange plate, and the first included angle is smaller than the second included angle.

4. The heat exchange device according to claim 2, characterized in that, The angle range of the first included angle is 15 degrees to 30 degrees.

5. The heat exchange device according to claim 2, characterized in that, An angle is formed between the first segment and the second segment.

6. The heat exchange device according to claim 2, characterized in that, The arched portion further includes a third segment located between the first segment and the second segment; one end of the third segment is connected to the first segment, and the other end of the third segment is connected to the second segment.

7. The heat exchange device according to claim 6, characterized in that, The third segment is arc-shaped.

8. The heat exchange device according to any one of claims 2-7, characterized in that, At least one side of the first segment facing away from the flow channel plate is provided with a hydrophobic coating.

9. The heat exchange device according to any one of claims 2-7, characterized in that, At least a portion of the connecting part is provided with a heat-insulating coating on the side facing away from the flow channel plate.

10. The heat exchange device according to any one of claims 1-7, characterized in that, There is a flow channel between the flow plate and the heat exchange plate for containing the cooling medium.

11. A battery pack structure, characterized in that, Includes a battery pack and the heat exchange device as described in any one of claims 1-10; The battery pack includes a battery pack housing and a battery located within the battery pack housing. The heat exchange device is located in the battery pack housing and is used to exchange heat with the battery.

12. The battery pack structure according to claim 11, characterized in that, The heat exchange device is connected to the battery pack housing, and the heat exchange device serves as the top cover of the battery pack housing; The battery pack housing and the heat exchange device together form at least a housing space for accommodating the battery.

13. The battery pack structure according to claim 11, characterized in that, The battery includes: a battery body, and one end of the battery body is provided with an electrode post; A protective cover is provided on the side of the terminal post away from the battery body, and the protective cover covers the terminal post.

14. The battery pack structure according to claim 12 or 13, characterized in that, The battery pack housing includes a side plate and a bottom plate connected to the side plate; the bottom plate is opposite to the heat exchange device. A groove is provided on the base plate at a position corresponding to the arched portion on the heat exchange device.

15. The battery pack structure according to claim 14, characterized in that, The lowest point of the arched portion is projected onto the base plate within the groove.

16. The battery pack structure according to claim 14, characterized in that, Also includes: Absorbent components; At least a portion of the absorbent is located within the groove.

17. The battery pack structure according to claim 16, characterized in that, One end of the absorber is located in the groove, and the other end of the absorber is connected to the protective cover, which covers the battery terminals.

18. The battery pack structure according to claim 17, characterized in that, The absorbent element includes a first part and a second part connected together, the first part being located within the groove; One end of the second part is connected to the first part, and the other end of the second part is connected to the protective cover; Furthermore, a third angle is formed between the first part and the second part.

19. The battery pack structure according to claim 18, characterized in that, The angle range of the third included angle is 90 degrees to 135 degrees.

20. An electrical appliance, characterized in that, The battery pack structure includes any one of claims 11-19.

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