Battery cell module, battery structure and battery assembly

Abstract

The utility model provides a battery cell module, a battery structure and a battery assembly. The battery cell module comprises at least two battery cells and two conduction components, the at least two battery cells are arranged side by side along a first direction; one conduction assembly is connected with the first sides of the at least two battery cells, and the other conduction assembly is connected with the second sides of the at least two battery cells. According to the utility model, the at least two battery cells are connected through the two conduction assemblies to form an independent battery cell module; compared with an existing battery cell module connecting process, the battery cell module connecting process is more convenient, the number of battery cells in the battery cell module is convenient to adjust, and the assembling efficiency of the battery cell module is improved; the battery cell module can output higher voltage and larger capacity, and the requirements of different devices for electric energy are met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery structures, in particular to a battery cell module, a battery structure and a battery assembly. Background Art

[0002] A battery cell module is a component formed by combining multiple battery cells in series or parallel; in existing battery cell modules, multiple battery cells are generally connected in parallel by connecting adjacent battery cells to each other, and then each battery cell is connected to a nickel sheet. Such a connection process is complex and not convenient for adjusting the number of battery cells in the battery cell module. Summary of the Utility Model

[0003] The utility model provides a battery cell module, a battery structure and a battery assembly to solve the problems of complex connection process of existing battery cell modules and inconvenience in adjusting the number of battery cells in the battery cell module.

[0004] A battery cell module includes at least two battery cells and two conduction components;

[0005] At least two battery cells are arranged side by side in a first direction;

[0006] One of the conduction components is connected to the first side of at least two of the battery cells, and the other conduction component is connected to the second side of at least two of the battery cells.

[0007] Preferably, the conduction component includes at least two conduction bodies and at least one connection part, and at least two of the conduction bodies are connected in sequence in the first direction; one of the connection parts is connected to the first ends of two adjacent conduction bodies.

[0008] Preferably, connection pins are provided at positions where the second ends of each of the conduction bodies protrude from the battery cells.

[0009] A battery structure includes at least two of the battery cell modules;

[0010] At least two of the battery cell modules are arranged in sequence in a second direction; the conduction components of two adjacent battery cell modules are in contact with each other.

[0011] A battery assembly includes a circuit board and the battery structure, and the conduction components of the battery structure are mounted on the circuit board.

[0012] Preferably, first insertion holes are provided on the circuit board, and the conduction components are inserted into the first insertion holes.

[0013] Preferably, the battery assembly further includes a first insulating sheet; the first insulating sheet is disposed between the circuit board and the battery structure.

[0014] Preferably, a second insertion hole is provided on the first insulating sheet, and the conduction component is inserted into the second insertion hole.

[0015] Preferably, the battery assembly further includes a second insulating sheet, which is wrapped outside the battery structure and connected to the circuit board.

[0016] Preferably, the second insulating sheet is an arc-shaped insulating sheet.

[0017] The battery cell module provided by the embodiment of the present invention includes at least two battery cells and two conduction components; during installation, at least two battery cells are arranged side by side in the first direction; one conduction component is connected to the first side of at least two battery cells, and the other conduction component is connected to the second side of at least two battery cells; in this way, at least two battery cells can be connected by two conduction components to form a single battery cell module; compared with the existing connection process of battery cell modules, it is more convenient, facilitates adjusting the number of battery cells in the battery cell module, and improves the assembly efficiency of the battery cell module; enables the battery cell module to output a higher voltage and a larger capacity, meeting the power requirements of different devices. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is an axonometric view of a battery cell module in an embodiment of the present invention;

[0020] Figure 2 is an axonometric view of a battery structure in an embodiment of the present invention;

[0021] Figure 3 is an axonometric view of a battery assembly in an embodiment of the present invention;

[0022] Figure 4 is an exploded view of a battery assembly in an embodiment of the present invention.

[0023] Wherein, 1, battery cell; 2, conduction component; 21, conduction main body; 22, connection part; 23, connection pin; 3, circuit board; 4, first insertion hole; 5, first insulating sheet; 6, second insertion hole; 7, second insulating sheet. Detailed Embodiments

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] 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" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] An embodiment of the present utility model provides a battery cell module. Refer to Figure 1 , the battery cell module includes at least two battery cells 1 and two conduction components 2; at least two battery cells 1 are arranged side by side in a first direction; one conduction component 2 is connected to the first side of at least two battery cells 1, and the other conduction component 2 is connected to the second side of at least two battery cells 1.

[0028] Among them, the first direction is the radial direction of the battery cell 1.

[0029] As an example, the battery cell module includes at least two battery cells 1 and two conduction components 2; during installation, the at least two battery cells 1 are arranged side by side in the first direction; one conduction component 2 is connected to the first side of the at least two battery cells 1, and the other conduction component 2 is connected to the second side of the at least two battery cells 1; with such an arrangement, the at least two battery cells 1 can be connected through the two conduction components 2 to form a single battery cell module; compared with the existing connection process of battery cell modules, it is more convenient, facilitating the adjustment of the number of battery cells 1 in the battery cell module and improving the assembly efficiency of the battery cell module; enabling the battery cell module to output a higher voltage and a larger capacity to meet the power requirements of different devices. Among them, the material of the conduction component 2 can be metal materials such as nickel, nickel-plated steel, copper-tin alloy, nickel-plated copper, and stainless steel.

[0030] In one embodiment, referring to Figure 1 , the conduction component 2 includes at least two conduction bodies 21 and at least one connecting portion 22; the at least two conduction bodies 21 are connected in sequence along the first direction; one connecting portion 22 is connected to the first ends of two adjacent conduction bodies 21.

[0031] As an example, the conduction component 2 includes at least two conduction bodies 21 and at least one connecting portion 22; during installation, the at least two conduction bodies 21 are connected in sequence along the first direction, and one connecting portion 22 is connected to the first ends of two adjacent conduction bodies 21; with such an arrangement, the at least two conduction bodies 21 are combined into an integrated structure, namely the conduction component 2, and the at least two battery cells 1 can be connected through the two conduction components 2 to form a single battery cell module; compared with the existing connection process of battery cell modules, it is more convenient, facilitating the adjustment of the number of battery cells 1 in the battery cell module and improving the assembly efficiency of the battery cell module; enabling the battery cell module to output a higher voltage and a larger capacity to meet the power requirements of different devices. Among them, the at least two conduction bodies 21 of one conduction component 2 are respectively and correspondingly connected to the first sides of the at least two battery cells 1, and the at least two conduction bodies 21 of the other conduction component 2 are respectively and correspondingly connected to the second sides of the at least two battery cells 1.

[0032] In one embodiment, referring to Figure 1 , Figure 2 and Figure 4 , a connection pin 23 is provided at a position where the second end of each conduction body 21 protrudes from the battery cell 1.

[0033] As an example, a connection pin 23 is provided at a position where the second end of each conduction body 21 protrudes from the battery cell 1, and the connection pin 23 is used to connect to the circuit board 3, facilitating the installation of the battery cell module on the circuit board 3.

[0034] The embodiment of the present utility model provides a battery structure, referring to Figure 1 and Figure 2, including at least two battery cell modules; the at least two battery cell modules are arranged in sequence along a second direction; the conduction components 2 of two adjacent battery cell modules are in contact and joined together.

[0035] Wherein, the second direction is the axial direction of the battery cell 1.

[0036] For multi-string battery cell modules, it is a trend to pursue beauty, small size and high automation degree; currently, the conventional method is to use nickel strips to spot-weld between the battery cells 1 of two adjacent battery cell modules, and then manually bond insulating sheets and shape them, and then weld them to the circuit board 3. During shaping, the nickel strip is prone to exceed the battery cell 1 after being bent, forming sharp corners. During shaping, in order to prevent the nickel strip from being difficult to bend, insulating sheets need to be added between the battery cells 1, increasing the cost and length.

[0037] The battery structure in this example includes at least two battery cell modules, and each battery cell module includes at least two battery cells 1 and two conduction components 2; during installation, the at least two battery cells 1 are arranged side by side along a first direction; one conduction component 2 is connected to the first side of the at least two battery cells 1, and the other conduction component 2 is connected to the second side of the at least two battery cells 1; by setting like this, the at least two battery cells 1 can be connected through the two conduction components 2 to form a single battery cell module; compared with the existing battery cell module connection process, it is more convenient, facilitating the adjustment of the number of battery cells 1 in the battery cell module and improving the assembly efficiency of the battery cell module; enabling the battery cell module to output a higher voltage and a larger capacity to meet the power requirements of different devices. The at least two battery cell modules are arranged in sequence along the second direction, and the conduction components 2 of two adjacent battery cell modules are in contact and joined together to form a double nickel sheet welding. By setting like this, compared with the prior art, the battery structure is modularly designed, with a simple and reliable structure; splitting a long nickel strip into two conduction components 2 with the same structure, the conduction components 2 are formed structures that have been processed and can be directly used to weld with the battery cells 1 and the circuit board 3 without adding insulating sheets and manual bending and shaping. There are no protrusions or sharp corners around the battery cells 1, optimizing the appearance, reducing the length dimension of the nickel strip, and improving the installation efficiency.

[0038] An embodiment of the present utility model provides a battery assembly, referring to Figure 3 and Figure 4 , including a circuit board 3 and a battery structure, and the conduction component 2 of the battery structure is installed on the circuit board 3.

[0039] As an example, the battery assembly includes a circuit board 3 and a battery structure. The battery structure includes at least two cell modules; each cell module includes at least two cells 1 and two conduction components 2; during installation, at least two cells 1 are arranged side by side in the first direction; one conduction component 2 is connected to the first side of at least two cells 1, and the other conduction component 2 is connected to the second side of at least two cells 1; in this way, at least two cells 1 can be connected through two conduction components 2 to form a single cell module; compared with the existing cell module connection process, it is more convenient, facilitating the adjustment of the number of cells 1 in the cell module and improving the assembly efficiency of the cell module; enabling the cell module to output a higher voltage and a larger capacity to meet the power requirements of different devices. At least two cell modules are arranged in sequence in the second direction, and the conduction components 2 of adjacent two cell modules are in contact and joined together to form a double nickel strip welding. In this way, compared with the prior art, the battery structure is modularly designed, with a simple and reliable structure; a long strip-shaped nickel strip is split into two conduction components 2 with the same structure. The conduction components 2 are formed structures that have been processed and can be directly welded to the cells 1 and the circuit board 3 without adding insulating sheets and manual bending and shaping. There are no protrusions or sharp corners around the cells 1, optimizing the appearance, reducing the length dimension of the nickel strip, and improving the installation efficiency.

[0040] In this example, the assembly process of the battery assembly is as follows: at least two cells 1 are arranged side by side in the first direction; one conduction component 2 is welded to the first side of at least two cells 1, and the other conduction component 2 is welded to the second side of at least two cells 1 to form a cell module; at least two cell modules are arranged in sequence in the second direction, and the conduction components 2 of adjacent two cell modules are in contact and joined together to form a battery structure; then the battery structure is installed on the circuit board 3, specifically by welding the conduction components 2 to the circuit board 3 to complete the production of the battery assembly; in this way, the battery assembly can achieve a beautiful appearance, a smaller volume, a higher degree of automation, improved efficiency, and reduced costs.

[0041] In one embodiment, referring to Figure 3 and Figure 4 , the circuit board 3 is provided with a first insertion hole 4, and the conduction component 2 is inserted into the first insertion hole 4.

[0042] As an example, the circuit board 3 is provided with a first insertion hole 4, and the conduction component 2 is inserted into the first insertion hole 4. Specifically, the connection pin 23 is inserted into the first insertion hole 4, which provides convenience for installing the cell module on the circuit board 3.

[0043] In one embodiment, referring to Figure 3 and Figure 4 , the battery assembly further includes a first insulating sheet 5; the first insulating sheet 5 is arranged between the circuit board 3 and the battery structure.

[0044] As an example, the battery assembly further includes a first insulating sheet 5; during installation, the first insulating sheet 5 is arranged between the circuit board 3 and the battery structure, which can separate the circuit board 3 from the battery cell 1 of the battery structure and avoid interference between the two.

[0045] In one embodiment, referring to Figure 3 and Figure 4 , a second insertion hole 6 is provided on the first insulating sheet 5, and the conduction component 2 is inserted through the second insertion hole 6.

[0046] As an example, a second insertion hole 6 is provided on the first insulating sheet 5. During installation, the second insertion hole 6 corresponds to the first insertion hole 4, and the conduction component 2 is inserted through the second insertion hole 6. Specifically, the connection pins 23 are sequentially inserted through the second insertion hole 6 and the first insertion hole 4, which provides convenience for installing the first insulating sheet 5 between the battery cell module and the circuit board 3.

[0047] In one embodiment, referring to Figure 3 and Figure 4 , the battery assembly further includes a second insulating sheet 7. The second insulating sheet 7 is wrapped outside the battery structure and is connected to the circuit board 3.

[0048] As an example, the battery assembly further includes a second insulating sheet 7. During installation, the second insulating sheet 7 is wrapped outside the battery structure and is connected to the circuit board 3, which can provide protection for the battery structure to avoid collision damage and also isolate external interference. Among them, the connection method between the second insulating sheet 7 and the circuit board 3 can be a welding method or a detachable method.

[0049] In one embodiment, referring to Figure 3 and Figure 4 , the second insulating sheet 7 is an arc-shaped insulating sheet.

[0050] As an example, the second insulating sheet 7 is an arc-shaped insulating sheet. The arc-shaped insulating sheet can reduce the material consumption on the basis of satisfying the wrapping of the battery structure, ensure the safety of the battery structure and make the appearance more smooth and beautiful.

[0051] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A battery cell module, characterized in that: comprising at least two battery cells and two conducting components; At least two battery cells are arranged side by side along a first direction; One of the conductive components is connected to the first sides of at least two of the battery cells, and another of the conductive components is connected to the second sides of at least two of the battery cells.

2. The battery cell module according to claim 1, characterized in that: The conductive component comprises at least two conductive bodies and at least one connecting portion, wherein at least two conductive bodies are connected in sequence along a first direction; and one connecting portion is connected to first ends of two adjacent conductive bodies.

3. The battery cell module according to claim 2, characterized in that: A connecting pin is provided at a position where the second end of each conductive body protrudes from the battery core.

4. A battery structure, characterized in that: Comprising at least two battery core modules according to any one of claims 1 to 3; At least two of the battery cell modules are arranged in sequence along the second direction; and the conductive components of two adjacent battery cell modules are bonded and connected.

5. A battery assembly, characterized in that: The invention comprises a circuit board and the battery structure according to claim 4, wherein the conductive component of the battery structure is mounted on the circuit board.

6. The battery assembly according to claim 5, characterized in that: The circuit board is provided with a first plugging hole, and the conducting component is inserted into the first plugging hole.

7. The battery assembly according to claim 5, characterized in that: The battery assembly also includes a first insulating sheet; the first insulating sheet is arranged between the circuit board and the battery structure.

8. The battery assembly according to claim 7, characterized in that: The first insulating sheet is provided with a second plugging hole, and the conducting component is inserted into the second plugging hole.

9. The battery assembly according to claim 5, characterized in that: The battery assembly also includes a second insulating sheet, which is wrapped around the battery structure and connected to the circuit board.

10. The battery assembly according to claim 9, characterized in that: The second insulating sheet is an arc-shaped insulating sheet.

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