Battery module

Abstract

The utility model provides a battery module which comprises a plurality of battery units which are arranged side by side along the thickness direction, each battery unit is provided with a shell, the shell is provided with an accommodating cavity, and the accommodating cavity is used for accommodating a battery cell; the protection assembly is arranged between two adjacent battery units, one end of the protection assembly is located in the containing cavity of one battery unit, the other end of the protection assembly is located in the containing cavity of the other battery unit, the protection assembly is of a hollow structure, and the containing cavities of the two adjacent battery units are communicated through the protection assembly; the protection assembly is used for penetration of a connecting line. According to the technical scheme of the utility model, the problem that the connecting wire in the battery module is easy to damage in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of practical energy storage equipment, and more specifically, to a battery module. Background Art

[0002] At present, in energy storage systems such as photovoltaic power generation, battery modules are usually used for energy storage. The battery module is composed of multiple battery cells, and the multiple battery cells are connected in series or in parallel through connecting wires.

[0003] When connecting battery cells, the battery module in the prior art usually uses a connecting frame or a shell to connect and fix multiple battery cells, and uses connecting wires to connect multiple battery cells at the same time. The number of battery cells connected simultaneously in this fixing method is relatively fixed, and the connecting wires are easily damaged by environmental influences during use, causing the power module to fail to work normally. Utility Model Content

[0004] The utility model provides a battery module to solve the problem that the connecting wires in the battery module in the prior art are easily damaged.

[0005] The utility model provides a battery module, which includes: a battery cell, wherein a plurality of battery cells are arranged side by side in a thickness direction, the battery cell has a shell, the shell has a receiving cavity, and the receiving cavity is used to place a battery cell; a protective component is arranged between two adjacent battery cells, one end of the protective component is located in the receiving cavity of one battery cell, and the other end of the protective component is located in the receiving cavity of another battery cell, the protective component is a hollow structure, and the receiving cavities of two adjacent battery cells are connected through the protective component, wherein the protective component is used to pass a connecting line.

[0006] Furthermore, the protection component also has a connection structure, and two adjacent battery cells are connected by the connection structure.

[0007] Furthermore, the connection structure includes a connecting tube and a fastener, the accommodating cavity has a first side wall and a second side wall arranged at intervals along the thickness direction of the battery cell, the connecting tube passes through the first side wall of one of the battery cells and the second side wall of the other battery cell respectively, and the fastener is arranged in the accommodating cavity of the battery cell and cooperates with the connecting tube to fixedly connect two adjacent battery cells.

[0008] Furthermore, the connecting pipe has a through hole, and the through hole forms a hollow structure.

[0009] Furthermore, the connecting pipe has a first end and a second end, a limiting structure is arranged on the first end, and a threaded structure is arranged on the second end, wherein the fastener is a nut, and the fastener is threadedly matched with the threaded structure.

[0010] Furthermore, the limiting structure includes a limiting protrusion, a first through hole is arranged on the first side wall, a second through hole is arranged on the second side wall, the first through hole and the second through hole are arranged correspondingly, and the connecting tube is passed through the first through hole and the second through hole, wherein the limiting protrusion cooperates with the first through hole to limit the displacement of the connecting tube relative to the battery cell.

[0011] Furthermore, the limiting structure also includes a stop protrusion, and a plurality of stop protrusions are provided. The plurality of stop protrusions are arranged on the outer wall of the connecting tube along a circumferential ring interval, a first through hole is provided on the first side wall, and a second through hole is provided on the second side wall. The first through hole and the second through hole are provided correspondingly, and the connecting tube is passed through the first through hole and the second through hole. A plurality of first accommodating grooves are provided on the hole wall of the first through hole, and the first accommodating grooves are provided one-to-one correspondingly to the stop protrusions, and the first accommodating grooves cooperate with the stop protrusions to limit the rotation of the connecting tube relative to the battery cell.

[0012] Furthermore, the protective component also includes a support tube, which is sleeved on the connecting tube and arranged between two adjacent battery cells. One end of the support tube abuts against the first side wall of one of the battery cells, and the other end of the support tube abuts against the second side wall of the other battery cell, wherein a plurality of second accommodating grooves are provided on the end of the support tube abutting against the second side wall, and anti-rotation protrusions are respectively provided in the first accommodating groove and the second accommodating groove to limit the rotation of the support tube relative to the battery cell.

[0013] Furthermore, the accommodating cavity includes a placement cavity and an installation cavity which are relatively arranged. The placement cavity is used to place the battery cell. The installation cavity has an opening, and the opening is located on the side wall of the shell. The hollow structure of the protective component is connected to the installation cavity. The battery unit includes two installation cavities, and the two installation cavities are arranged on both sides of the shell along the width direction of the shell.

[0014] Furthermore, a plurality of protection components are arranged between two adjacent battery cells.

[0015] By applying the technical solution of the utility model, a battery module includes a battery cell and a protective component. The protective component is a hollow structure, and the accommodating cavities of two adjacent battery cells can be connected through the protective component, so that the connecting wires of the two adjacent battery cells can pass through the protective component, and the connecting wires are protected by the protective component to prevent the connecting wires from being damaged during the use of the battery module, thereby improving the durability of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1The structure diagram of the battery module provided by the utility model is shown;

[0018] Figure 2 Shows Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 The schematic diagram of the structure of the connecting pipe provided by the utility model is shown;

[0020] Figure 4 A schematic diagram of the structure of the fastener provided by the utility model is shown;

[0021] Figure 5 The structure diagram of the battery unit provided by the utility model is shown;

[0022] Figure 6 Shows Figure 5 A partial enlarged view of point B in the middle;

[0023] Figure 7 A schematic diagram showing the structure of the battery unit and the support tube provided by the utility model;

[0024] Figure 8 Shows Figure 7 A partial enlarged view of point C in the middle;

[0025] Fig. 9 The schematic diagram of the structure of the support tube provided by the utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] 100. Battery cell;

[0028] 110. first side wall; 111. first through hole; 112. first receiving groove;

[0029] 120. second side wall; 121. second through hole;

[0030] 200, protection assembly; 210, connecting pipe; 220, fastener; 230, limiting protrusion; 240, anti-rotation protrusion; 250, supporting pipe; 251, second containing groove;

[0031] 300. Installation cavity. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] like Figure 1 As shown, an embodiment of the utility model provides a battery module, which includes a battery cell 100 and a protective component 200. Among them, a plurality of battery cells 100 are provided, and the plurality of battery cells 100 are arranged side by side in the thickness direction, and the battery cell 100 has a shell, and the shell has a receiving cavity, and the receiving cavity is used to place the battery cell. The protective component 200 is arranged between two adjacent battery cells 100, one end of the protective component 200 is located in the receiving cavity of one battery cell 100, and the other end of the protective component 200 is located in the receiving cavity of another battery cell 100. The protective component 200 is a hollow structure, and the receiving cavities of two adjacent battery cells 100 are connected through the protective component 200, wherein the protective component 200 is used to pass the connecting wire.

[0034] By applying the technical solution of the utility model, the battery module includes a battery cell 100 and a protective component 200. The protective component 200 is a hollow structure. The accommodating cavities of two adjacent battery cells 100 can be connected through the protective component 200, so that the connecting wires of two adjacent battery cells 100 can pass through the protective component 200, and the connecting wires are protected by the protective component 200 to prevent the connecting wires from being damaged during the use of the battery module, thereby improving the durability of the battery module.

[0035] Furthermore, the protection component 200 also has a connection structure, and two adjacent battery cells 100 are connected by the connection structure. The energy storage effect of the battery module is determined by the number of battery cells. Two adjacent battery cells 100 can be connected through the protection component 200. Through the above settings, the battery cell 100 can be added to the original battery module through the connection structure of the protection component 200 to achieve the expansion of the battery module. Specifically, when it is necessary to improve the energy storage effect of the battery module, the protection component 200 can be added on the basis of the multiple groups of battery cells 100 in the original battery module, and the newly added battery cells 100 can be connected through the newly added protection component 200 to achieve the expansion of the battery module. Correspondingly, when it is necessary to reduce the number of battery cells 100 in the battery module, the energy storage effect of the battery module can be adjusted by subtracting the number of battery cells 100 and the protection component 200, so as to facilitate the adjustment of the battery module according to different energy storage needs.

[0036] Reference Figures 2 to 4 As shown, the connection structure includes a connection tube 210 and a fastener 220, the accommodating cavity has a first side wall 110 and a second side wall 120 arranged at intervals along the thickness direction of the battery cell 100, the connection tube 210 passes through the first side wall 110 of one of the battery cells 100 and the second side wall 120 of the other battery cell 100, and the fastener 220 is arranged in the accommodating cavity of the battery cell 100 and cooperates with the connection tube 210 to fixedly connect two adjacent battery cells 100. Through the above arrangement, the connection tube 210 can accommodate the connection wires of two adjacent battery cells 100, and the connection tube 210 and the fastener 220 can form a connection structure to connect two adjacent battery cells 100, thereby realizing the expansion of the battery module.

[0037] Specifically, the connecting tube 210 has a through hole, and the through hole forms a hollow structure. When two battery cells 100 are connected, the connecting wire is passed through the through hole, and the connecting tube 210 can provide protection for the connecting wire.

[0038] Furthermore, the connecting tube 210 has a first end and a second end, a limiting structure is provided on the first end, and a threaded structure is provided on the second end, wherein the fastener 220 is a nut, and the fastener 220 is threadedly connected with the threaded structure. Through the above arrangement, the limiting structure can cooperate with the fastener 220 to prevent two adjacent battery cells 100 from moving away from or approaching each other, thereby playing a role in fixing the two adjacent battery cells 100, so that the two adjacent battery cells 100 can be stably connected.

[0039] Specifically, the limiting structure includes a limiting protrusion 230, a first through hole 111 is provided on the first side wall 110, a second through hole 121 is provided on the second side wall 120, the first through hole 111 and the second through hole 121 are provided correspondingly, and the connecting tube 210 is inserted into the first through hole 111 and the second through hole 121, wherein the limiting protrusion 230 cooperates with the first through hole 111 to limit the displacement of the connecting tube 210 relative to the battery cell 100. Specifically, the diameter of the limiting protrusion 230 is greater than the diameter of the first through hole 111 and the second through hole 121, so that the limiting protrusion 230 cannot pass through the first through hole 111 and the second through hole 121, thereby achieving the limiting function. The limiting protrusion 230 can be annularly arranged on the outer wall of the connecting tube 210, so that the limiting protrusion 230 will not block the hollow structure of the connecting tube 210, so that the connecting line can pass through the connecting tube 210.

[0040] Reference Figure 5 and Figure 6 As shown, the limiting structure also includes a stop protrusion 240, and a plurality of stop protrusions 240 may be provided. The plurality of stop protrusions 240 are arranged on the outer wall of the connecting tube 210 along a circumferential ring interval. A first through hole 111 is provided on the first side wall 110, and a second through hole 121 is provided on the second side wall 120. The first through hole 111 and the second through hole 121 are arranged correspondingly. The connecting tube 210 is penetrated by the first through hole 111 and the second through hole 121. A plurality of first receiving grooves 112 are provided on the hole wall of the first through hole 111. The first receiving grooves 112 and the stop protrusions 240 are arranged one by one, and the first receiving grooves 112 cooperate with the stop protrusions 240 to limit the rotation of the connecting tube 210 relative to the battery cell 100. Through the above-mentioned arrangement, the second accommodating groove 251 cooperates with the anti-rotation protrusion 240 to limit the rotation of the support tube 250 between two adjacent battery cells 100, thereby preventing the support tube 250 from rotating, affecting the connection effect of the connection structure of the protective component 200 relative to the battery cell 100, and ensuring the overall stability of the battery module.

[0041] In a specific embodiment of the present application, a receiving groove is also provided on the side wall of the second through hole 121, and the first through hole 111 and the second through hole 121 can simultaneously cooperate with the anti-rotation protrusion 240 to limit, so as to further enhance the limiting effect of the limiting structure and ensure the connection stability of the connecting structure.

[0042] In another specific embodiment of the present application, fasteners 220 are provided at both ends of the connecting tube 210 to fix two adjacent battery cells 100 and improve the connection effect of the two adjacent battery cells 100 .

[0043] In the above embodiment, when two adjacent battery cells 100 are connected, the first side wall 110 abuts against the second side wall 120 under the connection of the connection structure, which can reduce the overall occupied volume of the battery module and improve the energy density of the battery module.

[0044] Reference Figures 7 to 9 As shown, in another specific embodiment of the present application, the protection assembly 200 further includes a support tube 250, which is sleeved on the connecting tube 210, and is arranged between two adjacent battery cells 100, one end of the support tube 250 abuts against the first side wall 110 of one of the battery cells 100, and the other end of the support tube 250 abuts against the second side wall 120 of the other battery cell 100, wherein a plurality of second receiving grooves 251 are arranged on the end of the support tube 250 abutting against the second side wall 120, and the anti-rotation protrusions 240 are respectively arranged in the first receiving groove 112 and the second receiving groove 251 to limit the rotation of the support tube 250 relative to the battery cell 100. Through the above arrangement, the distance between two adjacent battery cells 100 can be determined by the support tube 250, which is convenient for the size design of the battery module to meet the use needs in different scenarios. Specifically, according to design requirements, a support tube 250 can be added between every two adjacent battery cells 100, or a support tube 250 can be selectively added between at least two adjacent battery cells 100 to flexibly adjust the overall volume of the battery module. By providing a second accommodating groove 251 to cooperate with the anti-rotation protrusion 240, the rotation of the support tube 250 between two adjacent battery cells 100 can be limited, thereby preventing the support tube 250 from rotating, affecting the connection effect of the connection structure of the protective component 200 relative to the battery cell 100, and ensuring the overall stability of the battery module.

[0045] In the present application, the accommodating cavity includes a placement cavity and an installation cavity 300 which are arranged opposite to each other. The placement cavity is used to place the battery cell. The installation cavity 300 has an opening, and the opening is located on the side wall of the shell. The hollow structure of the protective component 200 is connected to the installation cavity 300. The battery unit 100 includes two installation cavities 300, and the two installation cavities 300 are arranged on both sides of the shell along the width direction of the shell. Through the above arrangement, the opening is arranged on the side wall of the shell to form an operating space, which is convenient for the installation of the connection structure and the connection of the connection line, and improves the convenience of installation. The two installation cavities 300 are arranged on both sides of the shell, specifically, they can be arranged along the width direction of the shell, and the installation position can be selected. For example, the connection structure can be installed on one side of the shell, or the connection structure can be installed on both sides. The specific installation method can be adjusted according to the design method of the circuit, which can make it easier to design the circuit of the battery module.

[0046] Specifically, a plurality of protection components 200 are arranged between two adjacent battery cells 100. Through the above arrangement, a plurality of protection components 200 are arranged between two adjacent battery cells 100, and the connection lines are protected by two protection components 200 at the same time, so that the circuit design of the battery module can be conveniently performed, and two adjacent battery cells 100 are connected at the same time by two protection components 200, so as to improve the connection effect of the two adjacent battery cells 100, and further improve the overall stability of the battery module.

[0047] Furthermore, when a plurality of protection components 200 are disposed between two adjacent battery cells 100 , the fasteners 220 of the plurality of protection components 200 are all disposed in the accommodating cavity of the same battery cell 100 , which can facilitate the installation of the protection components 200 and improve the installation efficiency.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery module, characterized in that: The battery module comprises: A battery unit (100), wherein a plurality of the battery units (100) are provided, and the plurality of the battery units (100) are arranged side by side in a thickness direction, and the battery unit (100) comprises a shell, wherein the shell comprises a receiving cavity, and wherein the receiving cavity is used to place a battery cell; A protection component (200) is arranged between two adjacent battery cells (100), one end of the protection component (200) is located in a receiving cavity of one of the battery cells (100), and the other end of the protection component (200) is located in a receiving cavity of another of the battery cells (100), the protection component (200) is a hollow structure, and the receiving cavities of two adjacent battery cells (100) are connected through the protection component (200), wherein the protection component (200) is used for passing a connecting line.

2. The battery module according to claim 1, characterized in that: The protection component (200) also has a connection structure, and two adjacent battery units (100) are connected via the connection structure.

3. The battery module according to claim 2, characterized in that: The connection structure comprises a connection tube (210) and a fastener (220); the accommodating cavity comprises a first side wall (110) and a second side wall (120) which are arranged at intervals along the thickness direction of the battery cell (100); the connection tube (210) passes through the first side wall (110) of one of the battery cells (100) and the second side wall (120) of another of the battery cells (100); the fastener (220) is arranged in the accommodating cavity of the battery cell (100) and cooperates with the connection tube (210) to fixedly connect two adjacent battery cells (100).

4. The battery module according to claim 3, characterized in that: The connecting pipe (210) has a through hole, and the through hole forms the hollow structure.

5. The battery module according to claim 3, characterized in that: The connecting pipe (210) has a first end and a second end, the first end is provided with a limiting structure, and the second end is provided with a threaded structure, wherein the fastener (220) is a nut, and the fastener (220) is threadedly connected to the threaded structure.

6. The battery module according to claim 5, characterized in that: The limiting structure comprises a limiting protrusion (230), a first through hole (111) is provided on the first side wall (110), a second through hole (121) is provided on the second side wall (120), the first through hole (111) and the second through hole (121) are provided correspondingly, and the connecting tube (210) is passed through the first through hole (111) and the second through hole (121), wherein the limiting protrusion (230) cooperates with the first through hole (111) to limit the displacement of the connecting tube (210) relative to the battery unit (100).

7. The battery module according to claim 5 or 6, characterized in that: The limiting structure also includes a stop protrusion (240), and a plurality of the stop protrusions (240) are provided. The plurality of stop protrusions (240) are arranged in a circumferential ring shape on the outer wall of the connecting tube (210). A first through hole (111) is provided on the first side wall (110), and a second through hole (121) is provided on the second side wall (120). The first through hole (111) and the second through hole (121) are arranged correspondingly. The connecting tube (210) is passed through the first through hole (111) and the second through hole (121). A plurality of first receiving grooves (112) are provided on the hole wall of the first through hole (111). The first receiving grooves (112) and the stop protrusions (240) are arranged one-to-one correspondingly. The first receiving grooves (112) cooperate with the stop protrusions (240) to limit the connection tube (210) from rotating relative to the battery unit (100).

8. The battery module according to claim 7, characterized in that: The protection component (200) further comprises a support tube (250), wherein the support tube (250) is sleeved on the connecting tube (210), and the support tube (250) is arranged between two adjacent battery cells (100), and one end of the support tube (250) abuts against the first side wall (110) of one of the battery cells (100), and the other end of the support tube (250) abuts against the second side wall (120) of the other battery cell (100), wherein a plurality of second accommodating grooves (251) are arranged on the end of the support tube (250) abutting against the second side wall (120), and the anti-rotation protrusions (240) are respectively arranged in the first accommodating groove (112) and the second accommodating groove (251) to limit the rotation of the support tube (250) relative to the battery cell (100).

9. The battery module according to claim 1, characterized in that: The accommodating cavity comprises a placement cavity and an installation cavity (300) which are arranged opposite to each other, the placement cavity is used to place the battery cell, the installation cavity (300) has an opening, and the opening is located on the side wall of the shell, the hollow structure of the protective component (200) is connected to the installation cavity (300), and the battery unit (100) comprises two installation cavities (300), and the two installation cavities (300) are arranged on both sides of the shell along the width direction of the shell.

10. The battery module according to claim 1, characterized in that: A plurality of the protection components (200) are arranged between two adjacent battery units (100).

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