Connecting assembly, battery module, battery pack and electric equipment

Abstract

The utility model discloses a connecting assembly, a battery module, a battery pack and electric equipment, the connecting assembly comprises: a support, which is provided with a hollow installation area, a glue filling port and a flow channel port; the connecting piece assembly comprises a plurality of connecting pieces and two packaging pieces, the connecting pieces are arranged in rows, and the two packaging pieces are arranged on the two opposite sides of the connecting pieces arranged in rows respectively and conduct insulation sealing on the adjacent connecting pieces; the connecting piece assembly is arranged in the installation area, the connecting pieces are detachably connected with the support, a glue pouring channel suitable for guiding in heat-conducting glue is formed between the glue pouring opening and the flow channel opening, and the glue pouring channel extends between the connecting pieces along the support in a curve mode. According to the utility model, the plurality of connecting sheets are packaged into an integrated structure through the two packaging pieces, so that the production efficiency of the connecting assembly is greatly improved. Meanwhile, the support is provided with the glue filling port and the flow channel port, and the heat-conducting glue is guided into the glue filling channel, so that the heat dissipation efficiency of the connecting piece assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, and more specifically, to a connection component, a battery module, a battery pack and an electrical device. Background Art

[0002] In the prior art, each connecting piece in the battery pack is independent and needs to be installed one by one, which increases the production cycle and reduces production efficiency and output. In addition, the battery connecting piece is not provided with a heat dissipation device, which easily causes the connecting piece to heat up too quickly, affecting the normal operation and life of the battery pack. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a connection assembly, a battery module, a battery pack and an electrical device, which can at least solve the problems in the prior art that each connection piece is installed independently and has no heat dissipation device.

[0004] According to a first aspect of the utility model, a connection assembly is provided, comprising: a bracket, a hollow installation area is provided on the bracket, and a glue injection port and a flow channel port are provided on the bracket; a connecting piece assembly, the connecting piece assembly comprises a plurality of connecting pieces and two packaging parts, the plurality of connecting pieces are arranged in a row, the two packaging parts are respectively arranged on opposite sides of the connecting pieces arranged in a row, and the adjacent connecting pieces are insulated and sealed; the connecting piece assembly is arranged in the installation area, the connecting piece is detachably connected to the bracket, a glue injection channel suitable for introducing thermally conductive glue is formed between the glue injection port and the flow channel port, and the glue injection channel extends along the bracket between the connecting pieces in a curve.

[0005] Optionally, the packaging member is an insulating film.

[0006] Optionally, the packaging component is provided with a welding area for connecting the connecting piece to the pole, and the connecting piece is welded to the pole via the welding area.

[0007] Optionally, a plurality of isolation plates spaced apart from each other are provided in the installation area to divide the installation area into a plurality of first cavities, and each of the connecting pieces is located in a corresponding first cavity and insulated and isolated by the isolation plates.

[0008] Optionally, a buckle is provided in each of the first cavities, and each of the connecting sheets in the connecting sheet assembly is buckled and connected to the buckle.

[0009] Optionally, there are a plurality of the clips in each of the first cavities, and the plurality of the clips are distributed at intervals along the circumference of the welding area, and each of the connecting pieces is snap-connected with the clip at the position of the welding area.

[0010] Optionally, the bracket includes: a first body, a second body and a third body, the first body, the second body and the third body are arranged sequentially in the width direction, the second body is provided with the installation area, the glue filling port is provided at the top of the second body, the glue filling channel extends to each of the isolation plates through the glue filling port, and the bottom of the isolation plate forms the flow channel port.

[0011] Optionally, a plurality of second cavities are provided in the first body, and the second cavities are suitable for corresponding to the injection holes of the battery cell module. A plurality of third cavities are provided in the third body, and the third cavities are suitable for corresponding to the explosion-proof valves of the battery cell module.

[0012] The second aspect of the utility model provides a battery module, including: a battery cell module, the battery cell module includes a plurality of battery cell units, each of the battery cell units has a pole; the connection assembly described in the above embodiment, the bracket in the connection assembly is arranged on the side of the battery cell module where the pole is provided, is positioned according to the spacing of the battery cell module, is electrically connected through the connection sheet, and the packaging component is used to cover the connection sheet, and each connection sheet in the connection sheet assembly is respectively connected to the corresponding pole.

[0013] A third aspect of the present invention provides a battery pack, comprising the battery module described in the above embodiment.

[0014] A fourth aspect of the present invention provides an electrical device comprising the battery pack described in the above embodiment.

[0015] The connection assembly of the utility model uses two packaging parts to package multiple connection pieces into an integrated structure. The multiple connection pieces can be insulated and sealed by the packaging parts, which facilitates the integrated installation of the connection piece assembly on the bracket, greatly improving production efficiency. At the same time, by setting a glue injection port and a flow channel port on the bracket and introducing thermal conductive glue into the glue injection channel, the heat dissipation efficiency of the connection piece assembly is improved.

[0016] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] Figure 1 is a schematic structural diagram of a battery module according to an embodiment of the utility model;

[0019] Figure 2 It is a structural exploded view of a connecting piece assembly of a battery module according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic structural diagram of a bracket of a battery module according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Battery module 100;

[0023] Battery cell module 10;

[0024] Bracket 20; first body 21; second cavity 211; second body 22; mounting area 221; first cavity 2221; glue injection port 222; flow channel port 223; buckle 224; isolation plate 225; third body 23; third cavity 231;

[0025] Connecting piece assembly 30 ; connecting piece 31 ; packaging part 32 ; welding area 321 . DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] In the specification and claims of the utility model, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The connection assembly according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 3 As shown, the connection assembly according to the embodiment of the present utility model includes a bracket 20 and a connection piece assembly 30 .

[0036] Specifically, a hollow installation area 221 is provided on the bracket 20, and a glue injection port 222 and a flow channel port 223 are provided on the bracket 20. The connecting piece assembly 30 includes a plurality of connecting pieces 31 and two packaging parts 32, wherein the plurality of connecting pieces 31 are arranged in a row, and the two packaging parts 32 are respectively arranged on opposite sides of the connecting pieces 31 arranged in a row, and the adjacent connecting pieces 31 are insulated and sealed; the connecting piece assembly 30 is arranged in the installation area 221, and the connecting piece 31 is detachably connected to the bracket 20, and a glue injection channel suitable for introducing thermal conductive glue is formed between the glue injection port 222 and the flow channel port 223, and the glue injection channel extends along the bracket 20 between the connecting pieces 31 in a curve.

[0037] In other words, the connection assembly according to the embodiment of the utility model is mainly composed of a bracket 20 and a connection piece assembly 30. Figure 3 The bracket 20 is provided with a hollow installation area 221, and the bracket 20 is provided with a glue injection port 222 and a flow channel port 223. Figure 2As shown, the connecting piece assembly 30 is mainly composed of a plurality of connecting pieces 31 and two packaging members 32, wherein the plurality of connecting pieces 31 can be arranged in a row, and the two packaging members 32 are respectively arranged on opposite sides of the connecting pieces 31 arranged in a row, and the plurality of connecting pieces 31 arranged in a row can be packaged by the packaging members 32, and the plurality of connecting pieces 31 are packaged into an integrated structure. The connecting piece assembly 30 of the integrated structure is detachably connected to the bracket 20, thereby improving the installation efficiency of the connecting piece assembly 30 and the bracket 20.

[0038] like Figure 2 As shown, the packaging member 32 can insulate and seal the adjacent connecting pieces 31. The connecting piece assembly 30 is installed in the installation area 221, and the connecting piece 31 is detachably connected to the bracket 20. By setting the connecting piece assembly 30 as an integrated structure, the connecting piece assembly 30 can be directly installed on the bracket 20 in an integrated manner, which greatly improves production efficiency.

[0039] like Figure 1 and Figure 3 As shown, a glue pouring channel is formed between the glue pouring port 222 and the flow channel port 223, and the glue pouring channel can be used to introduce thermal conductive glue. The glue pouring channel can extend along the bracket 20 between the connecting pieces 31 in a curve, thereby achieving efficient heat dissipation of the connection components.

[0040] In the following embodiments of the present invention, the application of the connection component in the battery module 100 is used as an example for illustration. When the connection component is applied to the battery module 100, it can effectively prevent the battery module 100 from overheating, ensure that the battery module 100 can always work normally, and increase the service life of the battery module 100.

[0041] The utility model adopts a glue pouring channel and injects insulating thermally conductive glue into the glue pouring channel to form heat dissipation, without setting a traditional mechanical heat dissipation structure. The overall design is simpler and occupies less space. When the connecting assembly is used in a battery, the high-voltage circuit of the battery will generate heat during charging and discharging, causing the temperature inside the battery, the pole and the connecting piece assembly 30 to be too high. In particular, fast charging and discharging with large currents can easily lead to excessive temperature differences in the battery, which is not conducive to the control of the temperature management system and the balance of the battery. The thermally conductive glue added by the utility model can dissipate heat and can effectively avoid problems such as excessive temperatures of the battery poles and the connecting piece assembly 30.

[0042] Therefore, according to the connection assembly of the embodiment of the utility model, multiple connection sheets 31 are packaged into an integrated structure through two packaging members 32, and multiple connection sheets 31 can be insulated and sealed by the packaging members 32, so that the connection sheet assembly 30 can be installed on the bracket 20 in an integrated manner, which greatly improves the production efficiency. At the same time, by providing a glue injection port 222 and a flow channel port 223 on the bracket 20, the heat dissipation efficiency of the connection sheet assembly 30 is improved by introducing a thermally conductive glue into the glue injection channel.

[0043] According to one embodiment of the present invention, the packaging member 32 is an insulating film. Figure 2 As shown, the packaging member 32 may be an insulating film, and the insulating film is coated on a plurality of connecting pieces 31 arranged in a row. For example, the high-voltage connecting pieces 31 of the battery components arranged in series and parallel are located on the same pole side, and the insulating film may be packaged on the plurality of connecting pieces 31 arranged in a row by an integrated hot pressing process to form an integrated structure, thereby improving the installation efficiency of the connecting piece assembly 30 and playing the role of fixing the connecting piece 31 and insulating.

[0044] According to an embodiment of the present invention, the package 32 is provided with a welding area 321 for connecting the connecting piece 31 to the pole. Figure 2 The package 32 is provided with a welding area 321 for connecting the connecting piece 31 to the pole. The welding area 321 can be reserved on the package 32 to fix the connecting piece 31 and insulate, so as to avoid arcing and short circuit between the connecting pieces 31. At the same time, only one clamping is required when installing the connecting piece 31, which greatly improves production efficiency. The connecting piece 31 can be welded to the pole through the welding area 321.

[0045] In the present utility model, if Figure 2 As shown, two pieces of hot-pressed insulating film materials (package 32) can be wrapped around the connecting piece 31 to form an integrated connecting piece 31, and the insulating film reserves an area for welding the connecting piece 31 with the pole according to the shape of the pole. The shape of the connecting piece 31 can be specifically set according to actual needs, and will not be described in detail in the utility model.

[0046] According to one embodiment of the utility model, a plurality of spaced-apart isolation plates 225 are provided in the installation area 221 to separate the installation area 221 into a plurality of first cavities 2221 , and each of the connecting plates 31 is respectively located in a corresponding first cavity 2221 and insulated and isolated by the isolation plates 225 .

[0047] In other words, see Figure 3A plurality of spaced-apart isolation plates 225 are provided in the installation area 221 of the bracket 20. Each isolation plate 225 can divide the installation area 221 into a plurality of first cavities 2221. Each first cavity 2221 corresponds to a connecting piece 31. Two adjacent connecting pieces 31 can be insulated and isolated by the isolation plate 225, which further plays the role of fixing the connecting piece 31 and insulating it, thereby avoiding arcing and short circuit between the connecting pieces 31.

[0048] According to an embodiment of the present invention, a buckle 224 is respectively provided in each of the first cavities 2221 , and each of the connecting pieces 31 in the connecting piece assembly 30 is respectively buckled and connected to the buckle 224 .

[0049] That is to say, Figure 3 As shown, each of the first cavities 2221 in the installation area 221 is provided with a buckle 224 , and each of the connecting pieces 31 in the connecting piece assembly 30 can be respectively connected with the buckle 224 , thereby improving the installation efficiency of the connecting piece assembly 30 and the bracket 20 .

[0050] According to one embodiment of the utility model, Figure 3 As shown, there are multiple buckles 224 in each of the first cavities 2221, and the multiple buckles 224 can be spaced apart and distributed along the periphery of the welding area 321. Each of the connecting pieces 31 is connected with the buckle 224 at the position of the welding area 321 to ensure the stability of the installation of the connecting piece assembly 30 and the bracket 20. The size and specific shape of the buckle 224 can be specifically defined according to actual needs, and will not be described in detail in the present utility model.

[0051] According to one embodiment of the utility model, the bracket 20 includes: a first body 21, a second body 22 and a third body 23, the first body 21, the second body 22 and the third body 23 are arranged sequentially in the width direction, the second body 22 is provided with an installation area 221, a glue filling port 222 is provided at the top of the second body 22, the glue filling channel extends to each isolation plate 225 through the glue filling port 222, and a flow channel port 223 is formed at the bottom of the isolation plate 225.

[0052] In other words, Figure 1 and Figure 3As shown, the bracket 20 is mainly composed of a first body 21, a second body 22 and a third body 23, wherein the first body 21, the second body 22 and the third body 23 are arranged in sequence in the width direction, and the bracket 20 is generally designed as a square structure. The second body 22 is provided with an installation area 221, and a plurality of spaced-apart isolation plates 225 are provided in the installation area 221, each isolation plate 225 can separate the installation area 221 into a plurality of first cavities 2221, and each first cavity 2221 corresponds to a connecting piece 31, and a glue injection port 222 is installed at the top of the second body 22, and the glue injection channel can extend to each isolation plate 225 through the glue injection port 222, and a flow channel 223 is formed at the bottom of each isolation plate 225.

[0053] According to one embodiment of the present invention, see Figure 1 and Figure 3 , the first body 21 is provided with a plurality of second cavities 211, the second cavities 211 are suitable for corresponding to the injection holes of the battery module 10, and the third body 23 is provided with a plurality of third cavities 231, the third cavities 231 are suitable for corresponding to the explosion-proof valve of the battery module 10. Specifically, the first body 21 is formed with a plurality of second cavities 211 corresponding to the injection holes of the battery module 10, and the third body 23 is formed with a plurality of third cavities 231 corresponding to the explosion-proof valve of the battery module 10. Through the plurality of isolated second cavities 211 and third cavities 231 in the first body 21 and the third body 23 on the bracket 20, the injection solvent can be effectively isolated, and the explosion-proof valve can be easily installed.

[0054] In summary, according to the connection assembly of the embodiment of the utility model, multiple connection sheets 31 are packaged into an integrated structure through two packaging members 32, and multiple connection sheets 31 can be insulated and sealed by the packaging members 32, so that the connection sheet assembly 30 can be installed on the bracket 20 in an integrated manner, which greatly improves the production efficiency. At the same time, by setting the glue injection port 222 and the flow channel port 223 on the bracket 20, the heat dissipation efficiency of the connection sheet assembly 30 is improved by introducing thermal conductive glue into the glue injection channel.

[0055] According to the second aspect of the present invention, Figures 1 to 3 As shown, a battery module 100 is provided, comprising a cell module 10 and a connection assembly in the above embodiment, wherein the cell module 10 comprises a plurality of cell units, each of which has a pole. The bracket 20 in the connection assembly is arranged on the side of the cell module 10 where the pole is arranged, and is positioned according to the spacing of the cell module 10, and is electrically connected through the connection sheet 31, and the packaging member 32 is used to cover the connection sheet 31, and each connection sheet 31 in the connection sheet assembly 30 is respectively connected to the corresponding pole.

[0056] In other words, the battery module 100 according to the embodiment of the present invention is mainly composed of the battery cell module 10 and the connection components in the above-mentioned embodiment, such as Figure 1 As shown, the battery module 10 includes a plurality of battery cells arranged in a row. Each battery cell has a pole. The bracket 20 is installed on the side of the battery module 10 where the pole is provided. Figure 3 The bracket 20 is provided with a hollow installation area 221, and the bracket 20 is provided with a glue injection port 222 and a flow channel port 223. Figure 2 As shown, the connecting piece assembly 30 is an integrated structure, the connecting piece assembly 30 is installed in the installation area 221, and the connecting piece assembly 30 is detachably connected to the bracket 20, and the connecting piece assembly 30 is correspondingly connected to the pole. By setting the connecting piece assembly 30 as an integrated structure, the connecting piece assembly 30 can be directly installed on the bracket 20 in an integrated manner, which greatly improves production efficiency.

[0057] A glue filling channel is formed between the glue filling port 222 and the flow channel port 223, and the glue filling channel can extend along the bracket 20 in a curve between the connecting plate assembly 30, thereby achieving efficient heat dissipation of the connecting plate assembly 30 and the pole, preventing the battery module 100 from being overheated, ensuring that the battery module 100 can always work normally, and increasing the service life of the battery module 100.

[0058] The utility model adopts a glue pouring channel and injects insulating thermally conductive glue into the glue pouring channel to form heat dissipation, without setting up a traditional mechanical heat dissipation structure. The overall design is simpler and occupies less space. The high-voltage circuit of the battery will generate heat during charging and discharging, causing the temperature inside the battery, the pole and the connecting piece assembly 30 to be too high. In particular, fast charging and discharging with large currents can easily lead to excessive temperature differences in the battery, which is not conducive to the control of the temperature management system and the balance of the battery. The thermally conductive glue added by the utility model can dissipate heat and can effectively avoid problems such as excessive temperatures of the battery poles and the connecting piece assembly 30.

[0059] like Figure 1 and Figure 3 As shown, the connecting piece 31 is arranged in the installation area 221, and each connecting piece 31 is connected to the corresponding pole. Two packaging components 32 are respectively arranged on opposite sides of the connecting pieces arranged in a row, and multiple connecting pieces can be packaged to ensure that an integrated structure is formed between the packaging component 32 and the connecting piece 31, and the integrated structure is detachably connected to the bracket 20, thereby improving the installation efficiency of the connecting piece assembly 30 and the bracket 20.

[0060] like Figure 2As shown, the packaging member 32 may be an insulating film, and the insulating film is coated on a plurality of connecting pieces 31 arranged in a row. For example, the high-voltage connecting pieces 31 of the battery components arranged in series and parallel are located on the same pole side, and the insulating film may be packaged on the plurality of connecting pieces 31 arranged in a row by an integrated hot pressing process to form an integrated structure, thereby improving the installation efficiency of the connecting piece assembly 30 and playing the role of fixing the connecting piece 31 and insulating.

[0061] The package 32 is provided with a welding area 321 for connecting the connecting piece 31 to the pole. The welding area 321 can be reserved on the package 32 to fix the connecting piece 31 and insulate it, so as to avoid arcing and short circuit between the connecting pieces 31. At the same time, the connecting piece 31 only needs to be clamped once when installing, which greatly improves production efficiency.

[0062] In the present invention, the connecting piece 31 for the electrical connection (series-parallel connection) between the batteries is positioned according to the battery spacing, and the connecting piece 31 is wrapped with two pieces of hot-pressed insulating film materials (packaging members 32) to form an integrated connecting piece 31. The insulating film reserves an area for welding the connecting piece 31 to the pole according to the shape of the pole. The shape of the connecting piece 31 can be specifically set according to actual needs, and will not be described in detail in the present invention.

[0063] like Figures 1 to 3 As shown, when the battery module 100 of the utility model is assembled, the connecting piece assembly 30 of the integrated structure is installed on the bracket 20, and the connecting piece 31 is fixed with the buckle 224 of the bracket 20. A glue injection port 222 is designed on the bracket 20, and a flow channel 223 is provided on the isolation plate 225 of the connecting piece 31 at different positions. After the integrated connecting piece assembly 30 is installed and fixed, it is connected to the pole by welding. After the welding is completed, the connecting piece assembly 30 and the bracket 20 form a closed cavity area, and the insulating thermal conductive glue is poured into the glue injection channel at the glue injection port 222 of the bracket 20. The glue fully fills the first cavity 2221 through the flow channel 223, so that the glue connecting piece 31 is fully in contact with the pole and completely covers the pole.

[0064] In summary, according to the battery module 100 of the embodiment of the utility model, the connecting piece assembly 30 is set to an integrated structure, and the connecting piece assembly 30 can be directly installed on the bracket 20 in an integrated manner, which greatly improves the production efficiency. At the same time, by setting the glue filling port 222 and the flow channel port 223 on the bracket 20, by introducing the thermal conductive glue into the glue filling channel, the heat dissipation efficiency of the connecting piece assembly 30 and the pole is improved, the temperature of the battery module 100 is prevented from being too high, and the battery module 100 is ensured to be able to work normally all the time, thereby increasing the service life of the battery module 100.

[0065] Of course, for those skilled in the art, other structures and working principles of the battery module 100 are understandable and achievable, and will not be described in detail in the present invention.

[0066] According to the third aspect of the present invention, a battery pack is provided, comprising the battery module 100 in the above embodiment. Since the battery module 100 according to the embodiment of the present invention has the above technical effects, the battery pack according to the embodiment of the present invention should also have corresponding technical effects, that is, the battery pack of the present invention can effectively improve the production efficiency of the battery pack by adopting the battery module 100. At the same time, it prevents the battery pack from overheating, ensures that the battery pack can always work normally, and increases the service life of the battery pack.

[0067] Of course, for those skilled in the art, other structures of the battery pack and its working principles are understandable and achievable, and will not be described in detail in the present invention.

[0068] According to the fourth aspect of the present invention, an electric device is provided, comprising the battery pack in the above embodiment. Since the battery pack according to the embodiment of the present invention has the above technical effects, the electric device according to the embodiment of the present invention should also have the corresponding technical effects, that is, the electric device of the present invention can effectively improve the production efficiency of the electric device by adopting the battery pack. At the same time, it prevents the temperature of the electric device from being too high, ensures that the electric device can always work normally, and increases the service life of the electric device.

[0069] Of course, for those skilled in the art, other structures and working principles of the electrical equipment are understandable and achievable, and will not be described in detail in the present utility model.

[0070] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A connection assembly, characterized in that: include: A bracket, wherein a hollow installation area is provided on the bracket, and a glue injection port and a flow channel port are provided on the bracket; A connecting piece assembly, wherein the connecting piece assembly comprises a plurality of connecting pieces and two packaging parts, wherein the plurality of connecting pieces are arranged in a row, and the two packaging parts are respectively arranged on opposite sides of the connecting pieces arranged in a row, and the adjacent connecting pieces are insulated and sealed; the connecting piece assembly is arranged in the installation area, the connecting piece is detachably connected to the bracket, a glue injection channel suitable for introducing thermally conductive glue is formed between the glue injection port and the flow channel port, and the glue injection channel extends in a curve along the bracket between the connecting pieces.

2. The connection assembly according to claim 1, characterized in that: The packaging member is an insulating film.

3. The connection assembly according to claim 1, characterized in that: The packaging component is provided with a welding area for connecting the connecting piece to the pole, and the connecting piece is welded and connected to the pole through the welding area.

4. The connection assembly according to claim 3, characterized in that: A plurality of spaced-apart isolation plates are provided in the installation area to divide the installation area into a plurality of first cavities, and each of the connecting pieces is located in a corresponding first cavity and is insulated and isolated by the isolation plates.

5. The connection assembly according to claim 4, characterized in that: A buckle is respectively arranged in each of the first cavities, and each of the connecting sheets in the connecting sheet assembly is respectively buckled and connected to the buckle.

6. The connection assembly according to claim 5, characterized in that: There are a plurality of the clips in each of the first cavities, and the plurality of the clips are distributed at intervals along the circumference of the welding area, and each of the connecting sheets is clip-connected with the clip at the position of the welding area.

7. The connection assembly according to claim 4, characterized in that: The bracket includes: a first body, a second body and a third body, the first body, the second body and the third body are arranged sequentially in the width direction, the second body is provided with the installation area, the glue filling port is provided at the top of the second body, the glue filling channel extends to each of the isolation plates through the glue filling port, and the bottom of the isolation plate forms the flow channel port.

8. The connection assembly according to claim 7, characterized in that: The first body is provided with a plurality of second cavities, which are suitable for corresponding to the injection holes of the battery module. The third body is provided with a plurality of third cavities, which are suitable for corresponding to the explosion-proof valves of the battery module.

9. A battery module, characterized in that: include: A battery cell module, wherein the battery cell module comprises a plurality of battery cell units, each of the battery cell units has a pole; According to any one of claims 1 to 8, the bracket in the connecting assembly is arranged on a side of the battery module where the pole is provided, is positioned according to the spacing of the battery module, is electrically connected through the connecting sheet, and the packaging component is used to cover the connecting sheet, and each connecting sheet in the connecting sheet assembly is respectively connected to the corresponding pole.

10. A battery pack, characterized in that: A battery module comprising the battery module described in any one of claim 9.

11. An electrical device, characterized in that: A battery pack comprising the battery pack described in claim 10.

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