Battery and electric equipment

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery and electric equipment. The battery comprises a battery cell; a frame; the first heat exchange plate comprises a first main body part and a first extension part, the periphery of the first main body part and the bottom of the frame body are connected and fixed to form an accommodating space which is provided with an upward opening and is used for accommodating a battery cell, and the first extension part is positioned outside the frame body in the first direction; the second heat exchange plate comprises a second main body part and a second extension part, the periphery of the second main body part is fixedly connected with the frame body to seal the opening, and the second extension part is located outside the frame body in the first direction; and the liquid inlet and outlet assembly is arranged outside the frame body and communicates with the first extension part and the second extension part so as to be used for liquid inlet and liquid outlet of the first heat exchange plate and the second heat exchange plate. According to the utility model, the heat exchange efficiency can be effectively improved, and the extension part of the heat exchange plate and the liquid inlet and outlet assembly are positioned outside the frame body and are separated from the battery cell, so that the contact between the cooling liquid and the pole of the battery cell can be avoided, and the safety risk is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to batteries and electrical equipment. Background Art

[0002] At present, common battery products usually include multiple battery cells. In order to reduce the operating temperature of the battery, a liquid cooling plate is usually installed in the battery box or frame for cooling. However, cooling devices such as liquid cooling plates need to be equipped with corresponding inlet and outlet pipes and pipe joints. If leakage occurs, there is a possibility that the coolant will contact the pole of the battery cell, thereby affecting the battery performance and safety. Especially for battery products with inverted cells, since the pole is at the bottom, the possibility of the pole contacting the coolant is further increased, posing a greater safety hazard. Utility Model Content

[0003] In view of this, in order to improve at least one of the above problems existing in the prior art, the utility model provides a battery and an electrical device.

[0004] The first technical solution of the utility model provides a battery, comprising: a battery cell; a frame body, which is closed in a circumferential direction; a first heat exchange plate, arranged at the bottom of the frame body, the first heat exchange plate comprising a first main body and a first extension part, the periphery of the first main body part is connected and fixed to the frame body and together forms an accommodating space with an opening facing upward for accommodating the battery cell, and the first extension part is located outside the frame in a first direction; a second heat exchange plate, arranged at the top of the frame body, the second heat exchange plate comprising a second main body part and a second extension part, the periphery of the second main body part is connected and fixed to the frame body to seal the opening, and the second extension part is located outside the frame in a first direction; an inlet and outlet liquid assembly, arranged outside the frame body, the inlet and outlet liquid assembly is respectively connected to the first extension part and the second extension part, so as to be used for liquid inlet and liquid outlet of the first heat exchange plate and the second heat exchange plate.

[0005] In a feasible implementation, a first liquid inlet joint and a first liquid outlet joint are provided on the side of the first extension portion facing the second heat exchange plate; a second liquid inlet joint and a second liquid outlet joint are provided on the side of the second extension portion facing the first heat exchange plate; the liquid inlet and outlet assembly is arranged between the first extension portion and the second extension portion, and the liquid inlet and outlet assembly includes a liquid inlet transfer tube and a liquid outlet transfer tube, the liquid inlet transfer tube is respectively connected to the first liquid inlet joint and the second liquid inlet joint, and the liquid outlet transfer tube is respectively connected to the first liquid outlet joint and the second liquid outlet joint.

[0006] In a feasible implementation, the liquid inlet adapter pipe includes: a liquid inlet adapter main pipe, the top and bottom ends of which are provided with liquid inlet connecting sections, and are respectively connected to the first liquid inlet joint and the second liquid inlet joint; a liquid inlet adapter branch pipe, which extends radially along the liquid inlet adapter main pipe and is connected to the liquid inlet adapter main pipe to form a three-way structure, and the end of the liquid inlet adapter branch pipe away from the liquid inlet adapter main pipe is suitable for connection to the liquid supply pipeline.

[0007] In a feasible implementation, the inner diameter of the main liquid inlet adapter pipe gradually decreases from top to bottom. The inner diameter of the bottom end of the main liquid inlet adapter pipe is b1, and the inner diameter of the top end of the main liquid inlet adapter pipe is a1, where 0.5×a1 < b1 < a1.

[0008] In a feasible implementation, the liquid outlet adapter pipe includes: a main liquid outlet adapter pipe with liquid outlet connection sections provided at both the top end and the bottom end thereof, which are respectively connected to a first liquid outlet joint and a second liquid outlet joint; and a liquid outlet adapter branch pipe that extends radially along the main liquid outlet adapter pipe and is connected to the main liquid outlet adapter pipe to form a tee structure. The end of the liquid outlet adapter branch pipe away from the main liquid outlet adapter pipe is adapted to be connected to a liquid outlet pipeline.

[0009] In a feasible implementation, the inner diameter of the main liquid outlet adapter pipe gradually increases from top to bottom. The inner diameter of the top end of the main liquid outlet adapter pipe is a2, and the inner diameter of the bottom end of the main liquid outlet adapter pipe is b2, where 0.5×b2 < a2 < b2.

[0010] In a feasible implementation, a first groove is provided at a position on the outer side wall of the frame body opposite to the liquid inlet adapter pipe. The first groove extends in the height direction, and at least part of the liquid inlet adapter pipe is located in the first groove; and / or

[0011] A second groove is provided at a position on the outer side wall of the frame body opposite to the liquid outlet adapter pipe. The second groove extends in the height direction, and at least part of the liquid outlet adapter pipe is located in the second groove.

[0012] In a feasible implementation, in the first direction, the depth dimension of the first groove is H2, the dimension of the liquid inlet adapter pipe extending into the first groove is H1, and 1.05×H1 < H2; in a second direction perpendicular to the first direction, the width dimension of the first groove is D2, and the outer diameter dimension of the liquid inlet adapter pipe is D1, and 1.05×D1 < D2; and / or

[0013] In the first direction, the depth dimension of the second groove is H4, the dimension of the liquid outlet adapter pipe extending into the second groove is H3, and 1.05×H3 < H4; in a second direction perpendicular to the first direction, the width dimension of the second groove is D4, and the outer diameter dimension of the liquid outlet adapter pipe is D3, and 1.05×D3 < D4.

[0014] In a feasible implementation, the first heat exchange plate includes: a first flat plate; a first flow channel plate connected to one side of the first flat plate. A first flow channel groove is provided on the side of the first flow channel plate facing the first flat plate, and the first flow channel groove and the first flat plate are aligned to form a first flow channel; wherein, the first flat plate or the first flow channel plate is connected to the battery cell; and / or

[0015] The second heat exchange plate includes: a second flat plate; a second flow channel plate connected to one side of the second flat plate, a second flow channel groove is provided on the side of the second flow channel plate facing the second flat plate, and the second flow channel groove and the second flat plate are matched to form a second flow channel; wherein the second flat plate or the second flow channel plate is connected to the battery cell.

[0016] The technical solution of the second aspect of the utility model provides an electrical device, comprising the battery in any one of the above-mentioned first aspect.

[0017] The beneficial effects of the above technical solution of the utility model are embodied in:

[0018] The assembly method of the structure of the heat exchange plate is improved. A heat exchange plate is arranged on the upper and lower parts of the frame to exchange heat at the opposite ends of the battery cell respectively, which is beneficial to improving the heat exchange efficiency. At the same time, the extension part of the heat exchange plate extends out of the frame, and an inlet and outlet liquid assembly is arranged on the extension part, which can be connected with the inlet and outlet liquid pipelines outside the frame, thereby separating the connection of the inlet and outlet liquid pipelines from the battery cell. Even if leakage occurs at the joint, the coolant can be prevented from contacting the pole of the battery cell, thereby greatly reducing the safety risk and being beneficial to improving battery performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a three-dimensional schematic diagram of a battery provided by an embodiment of the utility model.

[0020] Figure 2 Shown is a schematic diagram of a disassembled state of a battery provided by an embodiment of the utility model.

[0021] Figure 3 Shown is a schematic diagram of a disassembled state of a battery provided by an embodiment of the utility model at another viewing angle.

[0022] Figure 4 Shown is a top view of a battery provided by an embodiment of the utility model.

[0023] Figure 5 Shown Figure 4 A front view of the battery is shown in FIG.

[0024] Figure 6 Shown is a schematic diagram of a liquid inlet transfer tube and a liquid outlet transfer tube provided in one embodiment of the utility model.

[0025] Figure 7 Shown Figure 5 A left side view of the battery is shown in FIG.

[0026] Figure 8 Shown Figure 4 A partial schematic diagram of a battery is shown in FIG.

[0027] Fig. 9Shown is a three-dimensional schematic diagram of another battery provided by an embodiment of the utility model.

[0028] Fig.10 Shown Fig. 9 A top view of the battery shown in FIG.

[0029] Fig.11 Shown Fig.10 A partial schematic diagram of a battery is shown in FIG.

[0030] Fig.12 Shown Figure 8 A left side view of the battery is shown in FIG.

[0031] Description of reference numerals:

[0032] 100 batteries;

[0033] 1 frame, 12 first groove, 13 second groove;

[0034] 2 second heat exchange plate, 20 second main body, 21 second extension portion, 211 second liquid inlet joint, 212 second liquid outlet joint, 22 second flat plate, 23 second flow channel plate, 231 second flow channel groove;

[0035] 3 first heat exchange plate, 30 first main body, 31 first extension portion, 311 first liquid inlet joint, 312 first liquid outlet joint, 32 first flat plate, 33 first flow channel plate, 331 first flow channel groove;

[0036] 4 liquid inlet and outlet components, 41 liquid inlet transfer pipe, 411 liquid inlet transfer main pipe, 412 liquid inlet connecting section, 413 liquid inlet transfer branch pipe, 42 liquid outlet transfer pipe, 421 liquid outlet transfer main pipe, 422 liquid outlet connecting section, 423 liquid outlet transfer branch pipe;

[0037] 510 battery cells, 511 poles. DETAILED DESCRIPTION

[0038] In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. In the embodiment of the present application, all directional indications (such as up, down, left, right, front, back, top, bottom ...) are only used to explain the relative position relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their deformations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units are not limited to the steps or units listed, but optionally also include the steps or units not listed, or optionally also include other steps or units inherent to these processes, methods, products or equipment.

[0039] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Application Overview

[0042] In recent years, with the rapid development of new energy sources, the safety and reliability of batteries have become the focus of users. Common battery products usually include multiple cells. In order to extend the battery life, it is necessary to reduce the battery operating temperature when the battery temperature is too high. Currently, liquid cooling plates are usually installed in the battery box or frame for cooling.

[0043] However, cooling devices such as liquid cooling plates need to be equipped with corresponding liquid inlet and outlet pipes and pipe joints. Once leakage occurs, there is a possibility that the coolant will contact the pole of the battery cell, which can easily cause a short circuit in the pole and affect the safety and performance of the battery. Especially for the currently common battery products with inverted cells, since the pole is at the bottom, the risk of the pole contacting the coolant is greater, which makes the battery have a greater safety hazard. Therefore, it is urgent to design a battery product that can prevent the coolant from contacting the pole and is safer.

[0044] Some embodiments of the battery and electrical equipment in the technical solution of the utility model are provided below.

[0045] In an embodiment of the first aspect of the present utility model, a battery 100 is provided, such as Figure 1 and Figure 2 As shown, the battery 100 includes a battery cell 510, a frame 1, a first heat exchange plate 3, a second heat exchange plate 2, and a liquid inlet and outlet assembly 4. The frame 1 is closed in the circumference; the first heat exchange plate 3 is arranged at the bottom of the frame 1, and the second heat exchange plate 2 is arranged at the top of the frame 1; the battery cell 510 is arranged inside the frame 1 and between the first heat exchange plate 3 and the second heat exchange plate 2, forming a double-layer heat exchange form.

[0046] Specifically, the first heat exchange plate 3 includes a first main body 30 and a first extension 31; the periphery of the first main body 30 is connected and fixed to the bottom of the frame 1, and together with the frame 1, forms an accommodation space with an opening facing upward, and the battery cell 510 is arranged in the accommodation space; in the first direction, the first extension 31 is located outside the frame 1. Similarly, the second heat exchange plate 2 includes a second main body 20 and a second extension 21; the periphery of the second main body 20 is connected and fixed to the top of the frame 1, and seals the opening of the accommodation space so that the accommodation space forms a sealed space; in the first direction, the second extension 21 is located outside the frame 1. A box structure is formed by the frame 1, the first main body 30 and the second main body 20 to enclose the battery cell 510 inside the box structure. Among them, the first main body 30 and the first extension 31 are in a connected state, and similarly, the second main body 20 and the second extension 21 are in a connected state. The inlet and outlet liquid assembly 4 is arranged outside the frame 1, and is used to connect the corresponding inlet and outlet liquid pipelines; the inlet and outlet liquid assembly 4 is respectively connected to the first extension portion 31 and the second extension portion 21, so that when used, the first heat exchange plate 3 and the second heat exchange plate 2 are connected to the corresponding inlet and outlet liquid pipelines through the inlet and outlet liquid assembly 4, so as to realize the inlet and outlet operations of the first heat exchange plate 3 and the second heat exchange plate 2. When the coolant flows in the first heat exchange plate 3 and the second heat exchange plate 2, heat is exchanged with the battery cell 510 to cool, dissipate heat or heat the battery cell 510.

[0047] It should be noted that in this embodiment, the first main body 30 and the first extension 31 of the first heat exchange plate 3 can be formed in an integral structure or in a split structure connected by welding or the like; the second heat exchange plate 2 is similar to the first heat exchange plate 3. The shapes and positions of the first extension 31 and the second extension 21 are not limited to Figure 1 The examples in the example can be set according to specific usage and assembly requirements. In addition, Figure 2 and Figure 3 As shown, the number of the battery cells 510 can be multiple, and can be set according to specific needs. In practical applications, the battery in this embodiment can be formed into a module or a battery pack; the setting direction of the battery cell 510 is not limited to Figure 3 The inverted arrangement shown in FIG. 5 (ie, the pole 511 is located at the bottom of the battery cell 510 ) may also be arranged upright or horizontally.

[0048] It is understandable that in the existing process, the liquid cooling plate is usually set in the battery box, and the connection between the inlet and outlet liquid pipelines and the liquid cooling plate is also set in the box. If leakage occurs at the pipe connection, it is very easy to cause the coolant to contact the pole of the battery cell, posing a safety hazard. Although some products provide a solution of setting up compartments in the box, it will make the internal structure more complicated, increase the internal space occupied, and lead to increased costs. Moreover, since the pipe connection is located inside the box, leakage cannot be discovered in time, and it is still difficult to avoid the risk of coolant seeping into the cavity where the battery cell is located and contacting the pole.

[0049] The battery 100 in this embodiment improves the assembly method of the structure of the heat exchange plate. The first heat exchange plate 3 and the second heat exchange plate 2 are used to exchange heat at the upper and lower ends of the battery cell respectively, so that the heat exchange is more uniform and more efficient. At the same time, the arrangement of the liquid inlet and outlet assembly 4 and the first extension portion 31 and the second extension portion 21 located outside the frame 1 can make the connection between the inlet and outlet pipes located outside the frame 1 to be separated from the battery cell. Even if leakage occurs at the joint, the coolant can be prevented from contacting the pole of the battery cell, thereby greatly reducing the safety risk and being beneficial to improving battery performance.

[0050] It should be emphasized that the first heat exchange plate 3 and the second heat exchange plate 2 in this embodiment can not only be used to cool and dissipate heat from the battery cell 510, but can also heat the battery cell 510 as needed, and only requires the introduction of a heat-treated coolant.

[0051] In a further embodiment of the present invention, Figure 2 , Figure 3 As shown, on the first heat exchange plate 3, the first extension portion 31 is provided with a first liquid inlet joint 311 and a first liquid outlet joint 312 on the side facing the second heat exchange plate 2; on the second heat exchange plate 2, the second extension portion 21 is provided with a second liquid inlet joint 211 and a second liquid outlet joint 212 on the side facing the first heat exchange plate 3. Correspondingly, the liquid inlet and outlet assembly 4 includes a liquid inlet transfer pipe 41 and a liquid outlet transfer pipe 42, which are arranged between the first extension portion 31 and the second extension portion 21; the liquid inlet transfer pipe 41 is respectively connected to the first liquid inlet joint 311 and the second liquid inlet joint 211, and the liquid outlet transfer pipe 42 is respectively connected to the first liquid outlet joint 312 and the second liquid outlet joint 212. When used, the liquid inlet transfer tube 41 is connected to the liquid inlet pipeline to supply coolant to the first heat exchange plate 3 through the first liquid inlet joint 311, and to supply coolant to the second heat exchange plate 2 through the second liquid inlet joint 211; the liquid outlet transfer tube 42 is connected to the liquid outlet pipeline to allow the coolant in the first heat exchange plate 3 to flow out through the first liquid outlet joint 312 and the liquid outlet transfer tube 42, and to allow the coolant in the second heat exchange plate 2 to flow out through the second liquid outlet joint 212 and the liquid outlet transfer tube 42. Preferably, as Figure 6In the example in FIG. 4 , the liquid inlet transfer branch pipe 413 is connected to the middle position of the liquid inlet transfer main pipe 411 , and similarly, the liquid outlet transfer branch pipe 423 is connected to the middle position of the liquid outlet transfer main pipe 421 .

[0052] Furthermore, if Figure 4 , Figure 5 and Figure 6 As shown, in the liquid inlet and outlet assembly 4, the liquid inlet transfer pipe 41 includes a liquid inlet transfer main pipe 411 and a liquid inlet transfer branch pipe 413. The liquid inlet transfer main pipe 411 extends in the height direction, and the top and bottom ends of the liquid inlet transfer main pipe 411 are both provided with liquid inlet connecting sections 412, the liquid inlet connecting section 412 at the bottom end is connected to the first liquid inlet joint 311 of the first heat exchange plate 3, and the liquid inlet connecting section 412 at the top end is connected to the second liquid inlet joint 211 of the second heat exchange plate 2. The liquid inlet adapter branch pipe 413 extends radially along the liquid inlet adapter main pipe 411 and is connected to the liquid inlet adapter main pipe 411 so that the liquid inlet adapter pipe 41 forms a three-way structure; the end of the liquid inlet adapter branch pipe 413 away from the liquid inlet adapter main pipe 411 is used to connect the liquid supply pipeline. After the coolant enters the liquid inlet adapter main pipe 411 through the liquid inlet adapter branch pipe 413, it flows into the first heat exchange plate 3 and the second heat exchange plate 2 through the first liquid inlet joint 311 and the second liquid inlet joint 211 respectively.

[0053] Through the example in this embodiment, a liquid inlet transfer pipe 41 can be used to supply liquid to the first heat exchange plate 3 and the second heat exchange plate 2 at the same time, and a liquid outlet transfer pipe 42 can be used to discharge liquid from the first heat exchange plate 3 and the second heat exchange plate 2 at the same time, further simplifying the structure and pipeline layout.

[0054] Among them, preferably, Figure 5 and Figure 6 In the example, the inner diameter of the liquid inlet adapter pipe 411 gradually decreases from top to bottom, forming a trumpet-shaped structure with a larger top and a smaller bottom, so that after the coolant enters the liquid inlet adapter pipe 411, the flow rate flowing upward to the second heat exchange plate 2 is increased, so that the coolant can overcome the influence of gravity and flow into the second heat exchange plate 2 normally. It can be understood that Figure 5 and Figure 6 In the example, the coolant entering the liquid inlet adapter main pipe 411 from the liquid inlet adapter branch pipe 413 needs to flow upward in the liquid inlet adapter main pipe 411 for a distance before it can enter the second heat exchange plate 2 from the second liquid inlet joint 211. During this process, the coolant is more difficult to flow due to the effect of gravity. The setting method in this embodiment can help the coolant overcome the influence of gravity.

[0055] Specifically, the inner diameter of the bottom end of the liquid inlet transfer main pipe 411 is b1, and the inner diameter of the top end of the liquid inlet transfer main pipe 411 is a1, and 0.5×a1 < b1 < a1, that is, the ratio of the inner diameter b1 of the bottom end to the inner diameter a1 of the top end of the liquid inlet transfer main pipe 411 is between 1:1 and 1:2, which can make the liquid inlet speeds of the first heat exchange plate 3 and the second heat exchange plate 2 remain basically the same.

[0056] Further, as Figure 4 , Figure 5 and Figure 6 shown, in the liquid inlet and outlet assembly 4, the liquid outlet transfer pipe 42 includes a liquid outlet transfer main pipe 421 and a liquid outlet transfer branch pipe 423. The liquid outlet transfer main pipe 421 extends in the height direction, and liquid outlet connection sections 422 are provided at both the top end and the bottom end of the liquid outlet transfer main pipe 421. The liquid outlet connection section 422 at the bottom end is connected to the first liquid outlet joint 312 of the first heat exchange plate 3, and the liquid outlet connection section 422 at the top end is connected to the second liquid outlet joint 212 of the second heat exchange plate 2. The liquid outlet transfer branch pipe 423 extends radially along the liquid outlet transfer main pipe 421 and is connected to the liquid outlet transfer main pipe 421 to form a tee structure for the liquid outlet transfer pipe 42; one end of the liquid outlet transfer branch pipe 423 away from the liquid outlet transfer main pipe 421 is used to connect to the liquid outlet pipeline. After the coolant of the first heat exchange plate 3 and the second heat exchange plate 2 enters the liquid outlet transfer branch pipe 423 through the liquid outlet transfer main pipe 421, it then flows outwards through the liquid outlet pipeline.

[0057] Among them, preferably, as shown in Figure 5 and Figure 6 , the inner diameter of the liquid outlet transfer main pipe 421 gradually increases from top to bottom, forming a trumpet-shaped structure with a smaller top and a larger bottom, so as to increase the liquid outlet flow rate of the lower first heat exchange plate 3 during the liquid outlet process, enabling the coolant to overcome the influence of gravity and normally enter the liquid outlet transfer branch pipe 423 from the liquid outlet transfer main pipe 421 and continue to flow into the liquid outlet pipeline. It can be understood that, as shown in Figure 6 , the coolant flowing out from the first liquid outlet joint 312 needs to flow upwards in the liquid outlet transfer main pipe 421 for a certain distance before entering the liquid outlet transfer branch pipe 423. During this process, the flow difficulty of the coolant increases due to the influence of gravity, and the trumpet-shaped structure in this embodiment can help the coolant overcome the influence of gravity.

[0058] Specifically, the inner diameter of the top end of the liquid outlet transfer main pipe 421 is a2, and the inner diameter of the bottom end of the liquid outlet transfer main pipe 421 is b2, where 0.5×b2 < a2 < b2, that is, the ratio of the fixed-end inner diameter a2 to the bottom-end inner diameter b2 of the liquid outlet transfer main pipe 421 is between 1:1 and 1:2, which can make the liquid outlet speeds of the first heat exchange plate 3 and the second heat exchange plate 2 remain basically the same.

[0059] In a further embodiment of the present utility model, as shown in Figure 4 , Figure 5 and Figure 7 and Figure 8 As shown, a first groove 12 is provided on the outer wall of the frame 1 at a position opposite to the liquid inlet transfer tube 41, and the first groove 12 is recessed toward the inner side of the frame 1 and extends in the height direction to provide installation space for the liquid inlet transfer tube 41; at least part of the liquid inlet transfer tube 41 is arranged in the first groove 12 and is connected to the corresponding first liquid inlet connector 311 and the second liquid inlet connector 211. Similarly, a second groove 13 is provided on the outer wall of the frame 1 at a position opposite to the liquid outlet transfer tube 42, and the second groove 13 is recessed toward the inner side of the frame 1 and extends in the height direction to provide installation space for the liquid outlet transfer tube 42; at least part of the liquid outlet transfer tube 42 is arranged in the second groove 13 and is connected to the corresponding first liquid outlet connector 312 and the second liquid outlet connector 212. Through the first groove 12 and the second groove 13 in the present embodiment, the liquid inlet transfer tube 41 and the liquid outlet transfer tube 42 can form an embedded design, which can reduce the occupied space and improve the space utilization. At the same time, it can protect the liquid inlet transfer tube 41 and the liquid outlet transfer tube 42 and prevent them from colliding with external structures and being damaged.

[0060] Furthermore, in a specific implementation, Figure 7 and Figure 8 As shown, the liquid inlet transfer pipe 41 is partially located in the first groove 12, and similarly, the liquid outlet transfer pipe 42 is partially located in the second groove 13. Through the above arrangement, a semi-embedded design can be formed for the liquid inlet transfer pipe 41 and the liquid outlet transfer pipe 42, which is suitable for the case where the wall thickness of the frame 1 is relatively small, and can take into account the strength requirements of the frame 1, while making the best use of the thickness of the frame 1 to provide installation space for the liquid inlet transfer pipe 41 and the liquid outlet transfer pipe 42.

[0061] Furthermore, in another specific implementation, as Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the liquid inlet transfer main pipe 411 of the liquid inlet transfer pipe 41 is completely located in the first groove 12, and only the liquid inlet transfer branch pipe 413 extends out of the first groove 12; similarly, the liquid outlet transfer main pipe 421 of the liquid outlet transfer pipe 42 is completely located in the second groove 13, and only the liquid outlet transfer branch pipe 423 extends out of the second groove 13. Through the above-mentioned arrangement, the shielding area of ​​the liquid inlet transfer pipe 41 and the liquid outlet transfer pipe 42 can be further increased, which is suitable for the case where the wall thickness of the frame 1 is relatively large.

[0062] Among the above two implementations, preferably, Figure 8 and Fig.11In the example, in the first direction, the depth dimension of the first groove 12 is H2, the dimension of the liquid inlet adapter pipe 41 extending into the first groove 12 is H1, the depth dimension of the second groove 13(13) is H4, the dimension of the liquid outlet adapter pipe 42 extending into the second groove 13 is H3, and 1.05×H1 < H2, and 1.05×H3 < H4. In the second direction perpendicular to the first direction, the width dimension of the first groove 12 is D2, the outer diameter dimension of the liquid inlet adapter pipe 41 is D1, the width dimension of the second groove 13 is D4, the outer diameter dimension of the liquid outlet adapter pipe 42 is D3, and 1.05×D1 < D2, 1.05×D3 < D4. Through the above dimension settings, the first groove 12, the second groove 13, the liquid inlet adapter pipe 41 and the liquid outlet adapter pipe 42 can meet the assembly requirements, leaving enough space for disassembly and assembly operations.

[0063] It should be noted that when the wall thickness of the frame body 1 is sufficient, the liquid inlet adapter pipe 41 can also be integrally arranged in the first groove 12, and the liquid outlet adapter pipe 42 can be integrally arranged in the second groove 13, realizing a completely embedded setting of the liquid inlet adapter pipe 41 and the liquid outlet adapter pipe 42.

[0064] In addition, the first groove 12 and the second groove 13 in the present utility model are not limited to Figure 8 the rectangular groove structure shown, and a semi-circular groove structure or other shaped structures can also be adopted, which can be specifically set according to the assembly requirements to be adapted to the liquid inlet adapter pipe 41 and the liquid outlet adapter pipe 42.

[0065] In a further embodiment of the present utility model, as Figure 2 and Figure 3 shown, the first heat exchange plate 3 specifically includes a first flat plate 32 and a first flow channel plate 33. In the height direction, the first flow channel plate 33 is arranged on one side of the first flat plate 32 and is connected to the first flat plate 32; a first flow channel groove 331 is arranged on the side of the first flow channel plate 33 facing the first flat plate 32, and the first flow channel groove 331 is recessed away from the first flat plate 32, and the first flow channel groove 331 and the first flat plate 32 are aligned to form a first flow channel suitable for the coolant to flow through; during assembly, the first flat plate 32 can be connected to the battery cell 510 as needed or the first flow channel plate 33 can be connected to the battery cell 510.

[0066] Similarly, as Figure 2 and Figure 3As shown, the second heat exchange plate 2 specifically includes a second flat plate 22 and a second flow channel plate 23. In the height direction, the second flow channel plate 23 is arranged on one side of the second flat plate 22 and connected to the second flat plate 22; the second flow channel plate 23 is provided with a second flow channel groove 231 on the side facing the second flat plate 22, and the second flow channel groove 231 is recessed in a direction away from the second flat plate 22, and the second flow channel groove 231 and the second flat plate 22 are matched to form a second flow channel suitable for the flow of coolant; during assembly, the second flat plate 22 can be connected to the battery cell 510 or the second flow channel plate 23 can be connected to the battery cell 510 as needed.

[0067] The first liquid inlet connector 311 and the first liquid outlet connector 312 are respectively arranged at the two ends of the first flow channel, and the second liquid inlet connector 211 and the second liquid outlet connector 212 are respectively arranged at the two ends of the second flow channel. The first flow channel and the second flow channel are arranged according to certain rules, for example Figure 2 The grid-like arrangement shown in the figure can increase the contact area with the battery cell, extend the flow path of the coolant, delay the heat exchange time, and help improve the heat exchange efficiency. Of course, the first flow channel and the second flow channel can also adopt other arrangements according to specific requirements, such as a serpentine arrangement, etc., which will not be repeated here.

[0068] Furthermore, as 1 and Figure 4 In the example, preferably, in the second direction perpendicular to the first direction, the first extension portion 31 is located in the middle of the first heat exchange plate 3, and correspondingly, the second extension portion 21 is located in the middle of the second heat exchange plate 2. Of course, according to different specific requirements, the first extension portion 31 and the second extension portion 21 can also be arranged at a position close to the left end or the right end in the second direction.

[0069] Furthermore, in actual applications, a corresponding supporting structure can be provided in the frame 1 according to usage requirements to support the battery cell 510, so that the weight of the battery cell 510 does not need to be borne by the first heat exchange plate 3 or the second heat exchange plate 2 to prevent damage to the first heat exchange plate 3 or the second heat exchange plate 2 due to excessive pressure.

[0070] In an embodiment of the second aspect of the present invention, an electric device is further provided, comprising the battery 100 in any embodiment of the first aspect, wherein the battery 100 serves as a power supply device to supply power to the electric device.

[0071] Among them, electrical equipment includes but is not limited to electric vehicles.

[0072] In addition, the electrical equipment in this embodiment also has all the beneficial effects of the battery 100 in any embodiment of the first aspect mentioned above, which will not be repeated here.

[0073] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not limitation, and the above details do not limit the present invention to being implemented by adopting the above specific details.

[0074] The block diagrams of the devices, apparatuses, equipment and systems involved in the present utility model are only illustrative examples and are not intended to require or imply that they must be connected, arranged and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment and systems can be connected, arranged and configured in any manner. Words such as "including", "comprising", "having" and the like are open words, referring to "including but not limited to" and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to" and can be used interchangeably with them. It should also be noted that in the apparatus and equipment of the present utility model, each component can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present utility model.

[0075] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize some variations, modifications, changes, additions and sub-combinations thereof. The above description of the disclosed aspects is provided to enable any technician in the field to make or use the utility model. Various modifications to these aspects are very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the utility model. Therefore, the utility model is not intended to be limited to the aspects shown herein, but in accordance with the widest range consistent with the principles and novel features of this utility model.

[0076] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery, characterized in that: include: Battery cell (510); A frame (1), wherein the frame (1) is circumferentially closed; a first heat exchange plate (3) disposed at the bottom of the frame (1), the first heat exchange plate (3) comprising a first main body (30) and a first extension (31), the periphery of the first main body (30) being connected and fixed to the frame (1) and forming together an accommodating space with an opening facing upward for accommodating the battery cell (510), and the first extension (31) being located outside the frame (1) in a first direction; a second heat exchange plate (2) disposed on the top of the frame (1), the second heat exchange plate (2) comprising a second main body portion (20) and a second extension portion (21), the periphery of the second main body portion (20) being connected and fixed to the frame (1) to seal the opening, and the second extension portion (21) being located outside the frame (1) in a first direction; A liquid inlet and outlet assembly (4) is arranged outside the frame (1), and the liquid inlet and outlet assembly (4) is respectively connected to the first extension portion (31) and the second extension portion (21) to be used for liquid inlet and liquid outlet of the first heat exchange plate (3) and the second heat exchange plate (2).

2. The battery according to claim 1, characterized in that A first liquid inlet joint (311) and a first liquid outlet joint (312) are provided on one side of the first extension portion (31) facing the second heat exchange plate (2); A second liquid inlet joint (211) and a second liquid outlet joint (212) are provided on a side of the second extension portion (21) facing the first heat exchange plate (3); The liquid inlet and outlet assembly (4) is arranged between the first extension portion (31) and the second extension portion (21), and comprises a liquid inlet transfer pipe (41) and a liquid outlet transfer pipe (42), wherein the liquid inlet transfer pipe (41) is respectively connected to the first liquid inlet joint (311) and the second liquid inlet joint (211), and the liquid outlet transfer pipe (42) is respectively connected to the first liquid outlet joint (312) and the second liquid outlet joint (212).

3. The battery according to claim 2, characterized in that The liquid inlet transfer pipe (41) comprises: A liquid inlet adapter main pipe (411), wherein the top and bottom ends of the liquid inlet adapter main pipe (411) are both provided with liquid inlet connecting sections (412) and are respectively connected to the first liquid inlet connector (311) and the second liquid inlet connector (211); The liquid inlet adapter branch pipe (413) extends radially along the liquid inlet adapter main pipe (411) and is connected to the liquid inlet adapter main pipe (411) to form a three-way structure. The end of the liquid inlet adapter branch pipe (413) away from the liquid inlet adapter main pipe (411) is suitable for connection with a liquid supply pipeline.

4. The battery according to claim 3, characterized in that The inner diameter of the liquid inlet adapter main pipe (411) gradually decreases from top to bottom. The inner diameter of the bottom end of the liquid inlet adapter main pipe (411) is b1, and the inner diameter of the top end of the liquid inlet adapter main pipe (411) is a1, wherein 0.5×a1 <b1<a1。 5. The battery according to claim 2, characterized in that The liquid outlet adapter pipe (42) includes: A liquid outlet adapter main pipe (421), with liquid outlet connection sections (422) provided at both the top and bottom ends of the liquid outlet adapter main pipe (421), and respectively connected to the first liquid outlet joint (312) and the second liquid outlet joint (212); A liquid outlet adapter branch pipe (423), which extends radially along the liquid outlet adapter main pipe (421) and is connected to the liquid outlet adapter main pipe (421) to form a tee structure. One end of the liquid outlet adapter branch pipe (423) away from the liquid outlet adapter main pipe (421) is adapted to be connected to a liquid outlet pipeline.

6. The battery according to claim 5, wherein The inner diameter of the liquid outlet adapter main pipe (421) gradually increases from top to bottom. The inner diameter at the top end of the liquid outlet adapter main pipe (421) is a2, and the inner diameter at the bottom end of the liquid outlet adapter main pipe (421) is b2, where 0.5×b2 < a2 < b2.

7. The battery according to claim 2, wherein A first groove (12) is provided at a position on the outer side wall of the frame body (1) opposite to the liquid inlet adapter pipe (41). The first groove (12) extends in the height direction, and at least part of the liquid inlet adapter pipe (41) is located within the first groove (12); and / or A second groove (13) is provided at a position on the outer side wall of the frame body (1) opposite to the liquid outlet adapter pipe (42). The second groove (13) extends in the height direction, and at least part of the liquid outlet adapter pipe (42) is located within the second groove (13).

8. The battery according to claim 7, wherein In the first direction, the depth dimension of the first groove (12) is H2, and the dimension of the liquid inlet adapter pipe (41) extending into the first groove (12) is H1, and 1.05×H1 < H2; In a second direction perpendicular to the first direction, the width dimension of the first groove (12) is D2, and the outer diameter dimension of the liquid inlet adapter pipe (41) is D1, and 1.05×D1 < D2; and / or In the first direction, the depth dimension of the second groove (13) is H4, and the dimension of the liquid outlet adapter pipe (42) extending into the second groove (13) is H3, and 1.05×H3 < H4; In a second direction perpendicular to the first direction, the width dimension of the second groove (13) is D4, and the outer diameter dimension of the liquid outlet adapter pipe (42) is D3, and 1.05×D3 < D4.

9. The battery according to any one of claims 1 to 8, wherein The first heat exchange plate (3) includes: A first flat plate (32); A first flow channel plate (33), connected to one side of the first flat plate (32). A first flow channel groove (331) is provided on the side of the first flow channel plate (33) facing the first flat plate (32). The first flow channel groove (331) and the first flat plate (32) are aligned to form a first flow channel; wherein, the first flat plate (32) or the first flow channel plate (33) is connected to the battery cell (510); and / or The second heat exchange plate (2) comprises: A second plate (22); A second flow channel plate (23) is connected to one side of the second flat plate (22); a second flow channel groove (231) is provided on the side of the second flow channel plate (23) facing the second flat plate (22); the second flow channel groove (231) and the second flat plate (22) are matched to form a second flow channel; wherein the second flat plate (22) or the second flow channel plate (23) is connected to the battery cell (510).

10. An electrical device, characterized in that: include: A battery as claimed in any one of claims 1 to 9.

Images