Battery compartment

Abstract

The utility model belongs to the technical field of battery protection, and discloses a battery compartment. The battery compartment comprises a first compartment body and a second compartment body. A plurality of first containing grooves are formed in the first bin body in the length direction and the width direction of the first bin body, each first containing groove can contain at least part of one battery cell, and the multiple battery cells can form a battery pack in the first bin body; a plurality of second accommodating grooves are formed in the second bin body in the length direction and the width direction of the second bin body, and the second bin body can be buckled on the first bin body, so that the plurality of second accommodating grooves can correspondingly accommodate at least parts, located outside the first bin body, of the plurality of battery cells. The battery compartment can protect the battery pack, thereby ensuring that the normal work of the battery core is not influenced by the stress such as extrusion or needling and foreign matters.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery protection technical field especially relates to a battery compartment. BACKGROUND

[0002] With the continuous development of industrial technology, electric energy has become an indispensable energy in daily life. Part of the supply of electric energy is through cable delivery, and part of the field needs to be supplied by battery pack. When using battery pack to supply electric energy, the battery core of the battery pack needs to be protected to prevent the battery core from being directly affected by stress such as extrusion and needle piercing, so as to ensure that the battery core can normally supply electric energy, and at the same time, it is necessary to ensure that the foreign matter in the working environment will not cause the battery core to be short-circuited.

[0003] Therefore, an urgent need exists for a battery compartment to protect the battery pack from stress such as extrusion or needle piercing while preventing foreign matter from entering the battery pack, thereby ensuring the normal operation of the battery core. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a battery compartment to protect the battery pack, thereby ensuring that stress such as extrusion or needle piercing and foreign matter will not affect the normal operation of the battery core.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A battery compartment comprises:

[0007] A first compartment body is provided with a plurality of first accommodation grooves along its length direction and width direction, each of which can accommodate at least part of a battery core, and a plurality of battery cores can form a battery pack in the first compartment body.

[0008] A second compartment body is provided with a plurality of second accommodation grooves along its length direction and width direction, and the second compartment body can be buckled on the first compartment body so that the plurality of second accommodation grooves can correspondingly accommodate at least part of the plurality of battery cores outside the first compartment body.

[0009] As a preferred embodiment, the edge of the first compartment body is provided with a first buckle, the edge of the second compartment body is provided with a second buckle, and when the second compartment body is buckled on the first compartment body, the first buckle can be connected to the second buckle.

[0010] As a preferred embodiment, the first compartment body is provided with a plurality of first buckles at intervals along the circumference, and the second compartment body is provided with a plurality of second buckles correspondingly along the circumference.

[0011] As a preferred embodiment, the number of the first accommodation grooves and the second accommodation grooves is greater than or equal to the number of the battery cores in the battery pack.

[0012] As preferred, when the second cartridge body is buckled to the first cartridge body, assembly gaps are formed between the inner walls of the first accommodating grooves and the second accommodating grooves and the corresponding battery cells.

[0013] As preferred, the first cartridge body and / or the second cartridge body are correspondingly provided with wire outlets.

[0014] As preferred, the wire outlets are arranged on the second cartridge body, and at least two wire outlets are arranged between every two adjacent second accommodating grooves.

[0015] As preferred, isolation sheets are arranged between the positive and negative poles of every two adjacent battery cells.

[0016] As preferred, the isolation sheets are arranged between the first cartridge body, the second cartridge body and the battery cells.

[0017] As preferred, the battery cartridge further comprises a control board, which is electrically connected to the battery pack and is configured to control the on-off of the current of the battery pack.

[0018] The battery cartridge has the advantages that:

[0019] The utility model discloses a battery cartridge. The battery cartridge comprises a first cartridge body and a second cartridge body. The first cartridge body is provided with a plurality of first accommodating grooves along the length direction and the width direction of the first cartridge body. Each first accommodating groove can accommodate at least part of a battery cell. A plurality of battery cells can form a battery pack in the first cartridge body. The second cartridge body is provided with a plurality of second accommodating grooves along the length direction and the width direction of the second cartridge body. The second cartridge body can be buckled to the first cartridge body so that the plurality of second accommodating grooves can accommodate at least part of the plurality of battery cells outside the first cartridge body. The battery cartridge can protect the battery pack, thereby ensuring that stress such as extrusion or needling and foreign matters do not affect the normal work of the battery cells. Meanwhile, the first cartridge body and the second cartridge body can also protect the electrical connection part (positive and negative poles) of the battery cells, thereby avoiding that foreign matters cause the short circuit of the battery pack, and the safety is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the axial side view of the battery cartridge provided by the utility model;

[0021] Figure 2 is the explosion view of the battery cartridge provided by the utility model.

[0022] In the drawings:

[0023] 10, first cartridge body; 11, first accommodating groove; 12, first buckle;

[0024] 20, second cartridge body; 21, second accommodating groove; 22, second buckle;

[0025] 30, outlet hole;

[0026] 40, spacer;

[0027] 50, control board;

[0028] 60, wire harness; 61, connection terminal;

[0029] 70, nickel sheet;

[0030] 100, battery cell. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0035] A battery compartment is provided in the embodiment, such asFigure 1 and Figure 2 As shown in FIGS. 1 and 2, the battery compartment comprises a first compartment body 10 and a second compartment body 20. The first compartment body 10 is provided with a plurality of first accommodating grooves 11 along its length direction and width direction, each of which can accommodate at least part of an electric cell 100, and a plurality of electric cells 100 can form a battery pack in the first compartment body 10. The second compartment body 20 is provided with a plurality of second accommodating grooves 21 along its length direction and width direction, and the second compartment body 20 can be buckled on the first compartment body 10 so that the plurality of second accommodating grooves 21 can correspondingly accommodate at least part of the plurality of electric cells 100 outside the first compartment body 10.

[0036] In the above structure, the plurality of first accommodating grooves 11 can correspondingly accommodate the plurality of electric cells 100 in the battery pack, that is, each electric cell 100 is individually placed in a first accommodating groove 11, thereby ensuring that each electric cell 100 is isolated by the first accommodating groove 11, and further ensuring that the adjacent two electric cells 100 will not collide, thereby ensuring the safety of use. In addition, when the second compartment body 20 is buckled on the first compartment body 10, the second accommodating groove 21 can correspondingly protect the part of the electric cell 100 outside the first accommodating groove 11, so that the battery pack can be jointly protected by the first compartment body 10 and the second compartment body 20, thereby avoiding damage to the battery pack caused by stress such as extrusion and needle puncture; at the same time, the first compartment body 10 and the second compartment body 20 can also protect the electrical connection (positive and negative poles) of the electric cell 100, thereby avoiding foreign matter causing short circuit of the battery pack, and the safety is high. It is worth noting that the first compartment body 10 and the second compartment body 20 can be provided with a half-enclosed structure, that is, when the second compartment body 20 is buckled on the first compartment body 10, both sides of the battery pack will be exposed outside the battery compartment. This setting can not only protect the battery pack, but also reduce the overall weight of the battery compartment, avoiding the disadvantage of too large weight for use; at the same time, it is also conducive to heat dissipation of the battery pack, avoiding the internal temperature being too high to cause explosion of the battery pack, and improving the safety of use.

[0037] It should be noted that in the present embodiment, the positive and negative poles of the electric cell 100 are connected with the nickel sheet 70, and by changing the connection mode of the nickel sheet 70, the series or parallel connection between the plurality of electric cells 100 can be realized; in addition, the positive and negative poles of the electric cell 100 are all spot-welded with the nickel sheet 70, and after the battery pack is placed in the first compartment body 10, buckling the second compartment body 20 can also protect the spot-welded position, thereby reducing the risk of short circuit of the battery pack. In addition, in order to further ensure the stability of the battery pack, a locking hole can be selected at the position of the outer periphery (inner periphery of the first compartment body 10 or the second compartment body 20) of the battery pack after the plurality of electric cells 100 are connected into a shape by the nickel sheet 70, and the battery pack is fixed on the first compartment body 10 or the second compartment body 20 by screw fastening, thereby improving the overall strength. The battery pack can also be fixed by using an insulating bandage structure, and the specific mode is not limited in the present embodiment.

[0038] It should be noted that after the welding of the nickel sheet 70 and the positive and negative electrodes of the battery cell 100 is completed, the overall input and output of the battery pack are led out through the wire harness 60, the end of the wire harness 60 is provided with a connecting terminal 61, and the connecting terminal 61 is connected with the external product interface, which is convenient to operate, has high safety factor, and the wire harness 60 can be bent to adapt to various assembly methods and assembly environments.

[0039] Correspondingly, as shown in Figure 1 and Figure 2 , the first bin body 10 and / or the second bin body 20 are correspondingly provided with wire outlet holes 30, which can facilitate the connection of the battery pack with external products and improve the use experience. However, considering that the first bin body 10 needs to be placed on the workbench, it is not convenient to wire. Therefore, in the present embodiment, the wire outlet holes 30 are arranged on the second bin body 20, and at least two wire outlet holes 30 are arranged between each adjacent two second accommodating grooves 21. Not only does it solve the problem of inconvenient wiring when the first bin body 10 is placed on the workbench, but it also enables wiring for the corresponding battery cells 100 in multiple second accommodating grooves 21, improving the use experience and convenience.

[0040] Further, in the present embodiment, the first bin body 10 and the second bin body 20 are both made of rigid material. Rigid material (high-hardness insulating material) can effectively reduce the damage of external forces such as extrusion and needling to the battery cell 100, thereby effectively protecting the battery pack and improving the safety of the product in which the battery pack is located. At the same time, it also has certain flame-retardant and moisture-proof protection effects. In other embodiments, the first bin body 10 and the second bin body 20 can also be made of flexible materials such as rubber. Flexible materials can buffer external forces and prevent rigid impact from being transmitted to the battery pack through the battery bin, while also having good insulation performance. As long as the structure can provide good protection to the battery pack, it is within the scope of protection of the present embodiment.

[0041] For easy disassembly, as shown in Figure 1 and Figure 2 , the edge of the first bin body 10 is provided with a first buckle 12, and the edge of the second bin body 20 is provided with a second buckle 22. When the second bin body 20 is buckled on the first bin body 10, the first buckle 12 can be buckled to the second buckle 22. This arrangement can reduce the difficulty of disassembling the first bin body 10 and the second bin body 20, improve the convenience of installation, and facilitate subsequent replacement of the battery pack. In other embodiments, the first bin body 10 and the second bin body 20 can also be connected using bolts and other structures. The present embodiment does not make specific limitations, as long as the detachable connection relationship between the two can be ensured.

[0042] As shown in Figure 1 and Figure 2As shown, the first container body 10 is circumferentially spaced apart with a plurality of first buckles 12, and the second container body 20 is circumferentially correspondingly provided with a plurality of second buckles 22. Such a setting can produce a firm connection relationship, that is, even if one group of first buckles 12 and second buckles 22 are not buckled, the other groups can ensure that the first container body 10 and the second container body 20 will not be opened, thereby ensuring the protection effect on the battery pack.

[0043] The number of the first accommodating grooves 11 and the second accommodating grooves 21 is greater than or equal to the number of the battery cells 100 in the battery pack. Such a setting can improve the versatility of the battery compartment, and when the number of the first accommodating grooves 11 and the second accommodating grooves 21 is greater than the number of the battery cells 100, a counterweight can be arranged in the groove body where the battery cell 100 is not placed, so as to ensure the overall counterweight balance.

[0044] Considering that the battery cell 100 is easy to heat and expand during long-time work, which may cause internal damage to the structure of the battery compartment. To solve this problem, the battery compartment is processed according to the actual shape of the battery cell 100, and it is necessary to ensure that when the second container body 20 is buckled to the first container body 10, the inner walls of the first accommodating grooves 11 and the second accommodating grooves 21 and the corresponding battery cells 100 form an assembly gap. Such a setting can ensure that when the battery cell 100 is slightly deformed due to external force and temperature, the reserved assembly gap can also avoid the battery cell 100 from internally abutting and pressing the inner walls of the first accommodating grooves 11 and the second accommodating grooves 21, thereby prolonging the service life of the battery compartment. It should be noted that in the present example, the battery cell 100 is cylindrical, so the first accommodating grooves 11 and the second accommodating grooves 21 are processed into cylindrical grooves. In other embodiments, the battery cell 100 can also be of other shapes, at this time the first accommodating grooves 11 and the second accommodating grooves 21 need to be designed according to the shape, and the volume of the corresponding accommodating grooves is slightly larger than the volume of the battery cell 100, so as to correspondingly form an assembly space. In the present example, the specific shape is not limited, as long as the structure of the battery compartment is correspondingly arranged according to the shape of the battery cell 100, it is within the protection scope of the present embodiment.

[0045] In order to further prevent the battery pack from short circuiting, as shown in Figure 2 As shown, the positive and negative electrodes of the adjacent two battery cells 100 are provided with an isolation sheet 40; the first container body 10 and the second container body 20 and the battery cell 100 are provided with an isolation sheet 40. Such a setting can avoid contact between the adjacent two battery cells 100 and cause short circuit, and can also avoid contact between the end of the battery cell 100 and the battery compartment, thereby playing a role in isolation and protection. And the isolation sheet 40 can be made of polyformate (PC material), which has insulation and impact resistance, and does not absorb moisture in the air, and has stable chemical properties, thereby maximizing the safety performance.

[0046] In addition, asFigure 1 and Figure 2 As shown in the figure, the battery compartment further comprises a control board 50, which is electrically connected with the battery pack and is configured to control the on-off of the current of the battery pack. By setting the control board 50, the output of the current can be cut off when the battery pack works abnormally, thereby ensuring the safety of use. It should be noted that in the present embodiment, the control board 50 includes but is not limited to the following functions: storage function (for storing the working parameters of the battery, recording the working state), control function (when the current is too large or too small for a moment, the control board 50 can quickly cut off the connection between the battery pack and the outside, thereby ensuring the safety of use), detection function (detecting whether there are foreign matters at the connection between the battery cell 100 and the nickel sheet 70, etc.). In addition, the control board 50 can also be used in cooperation with the temperature sensor, that is, a temperature sensor is arranged inside the battery compartment and is in communication connection with the control board 50, when the temperature detected by the temperature sensor is higher than the preset temperature, the signal is transmitted to the control board 50, the control board 50 immediately cuts off the current output to the outside, thereby ensuring the safety of use.

[0047] In the present embodiment, the control board 50 is arranged outside the second compartment body 20, thereby facilitating installation. In other embodiments, the control board 50 can also be arranged inside the battery compartment, and the present embodiment does not limit the arrangement position of the control board 50.

[0048] In summary, the battery compartment in the present embodiment has good integrity and can effectively protect the battery pack, prevent the battery pack from being subjected to stress such as extrusion or needle puncture, and thereby ensure the normal working of the battery cell 100.

[0049] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery compartment, characterized in that: include: A first housing (10) is provided with a plurality of first accommodating grooves (11) along its length and width, each of the first accommodating grooves (11) being capable of accommodating at least a portion of a battery cell (100), and the plurality of battery cells (100) being capable of forming a battery pack within the first housing (10); The second storage body (20) is provided with a plurality of second accommodating grooves (21) along its length direction and width direction. The second storage body (20) can be buckled onto the first storage body (10) so that the plurality of second accommodating grooves (21) can correspondingly accommodate at least a portion of the plurality of battery cells (100) located outside the first storage body (10).

2. The battery compartment according to claim 1, wherein: The edge of the first warehouse body (10) is provided with a first buckle (12), and the edge of the second warehouse body (20) is provided with a second buckle (22). When the second warehouse body (20) is buckled onto the first warehouse body (10), the first buckle (12) can be buckled to the second buckle (22).

3. The battery compartment according to claim 2, wherein: The first hopper body (10) is provided with a plurality of the first buckles (12) at intervals along the circumferential direction, and the second hopper body (20) is provided with a plurality of the second buckles (22) correspondingly along the circumferential direction.

4. The battery compartment according to any one of claims 1 to 3, characterized in that: The number of the first accommodating grooves (11) and the second accommodating grooves (21) are both greater than or equal to the number of the battery cells (100) in the battery pack.

5. The battery compartment according to any one of claims 1 to 3, characterized in that: When the second storage body (20) is buckled into the first storage body (10), an assembly gap is formed between the inner walls of the first accommodating groove (11) and the second accommodating groove (21) and the corresponding battery core (100).

6. The battery compartment according to any one of claims 1 to 3, characterized in that: A wire outlet hole (30) is correspondingly provided on the first bin body (10) and / or the second bin body (20).

7. The battery compartment according to claim 6, characterized in that: The wire outlet holes (30) are provided in the second storage body (20), and at least two wire outlet holes (30) are provided between each two adjacent second accommodating grooves (21).

8. The battery compartment according to any one of claims 1 to 3, characterized in that: A separator (40) is provided between the positive electrode and the negative electrode of two adjacent battery cells (100).

9. The battery compartment according to claim 8, characterized in that: The isolation sheet (40) is provided between the first storage body (10), the second storage body (20) and the battery core (100).

10. The battery compartment according to any one of claims 1 to 3, characterized in that: The battery compartment further comprises a control board (50), the control board (50) being electrically connected to the battery pack, and the control board (50) being configured to be able to control the on and off of the battery pack current.

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