Battery pack with high sealing performance

Abstract

The utility model relates to a battery pack with high sealing performance, which comprises a battery box and a battery module arranged in the battery box, the battery box comprises an upper cover and a lower shell, the upper cover and the lower shell are buckled and fixedly connected through a bolt, and the upper cover and the lower shell are sealed through glue; wherein the edge of the lower shell is provided with a gluing groove extending inwards, the edge of the upper cover is provided with an inserting rib corresponding to the gluing groove in position, and the inserting rib is matched with the gluing groove in an inserting mode to form a labyrinth structure. The battery pack is simple in structure and reasonable in design, and the weight of the battery pack is reduced while the structural stability is enhanced; besides, the battery cell is mounted in the battery pack, so that the battery cell is completely sealed, the whole battery pack has a relatively good waterproof effect, IPX8 and 10-meter water pressure waterproofness can be achieved, and the requirements of underwater or underwater electrical products are met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a battery pack with high sealing performance. Background Art

[0002] With the rapid development of the new energy field, electrical products have higher and higher requirements for the waterproof structure of batteries. For products that need to work underwater for a long time, rechargeable batteries are generally used for power supply. In order to ensure that the batteries work normally underwater, the batteries need to be sealed to ensure that the batteries will not come into contact with water and cause damage when working underwater. However, most of the existing underwater batteries are pure potting structures with a large amount of glue, which leads to a large weight of the overall battery and cannot meet the needs of underwater or underwater electrical products. Utility Model Content

[0003] Based on this, it is necessary to provide a battery pack with high sealing performance to address the problems existing in the prior art.

[0004] A high sealing performance battery pack comprises a battery box and a battery module installed in the battery box, the battery box comprises an upper cover and a lower shell, the upper cover and the lower shell are buckled and fixed by bolts, and the upper cover and the lower shell are sealed with glue, the edge of the lower shell is provided with a glue groove extending inward, the edge of the upper cover is provided with a plug-in rib corresponding to the position of the glue groove, the plug-in rib is plugged into the glue groove to form a maze structure.

[0005] In one of the embodiments, a gap is provided between the glue groove and the plug-in rib.

[0006] In one embodiment, the battery box further includes a handle, which is located at the front end of the battery box and is integrally formed with the battery box.

[0007] In one embodiment, the battery box is an ABS / PC alloy box.

[0008] In one embodiment, the battery module includes an upper bracket, a lower bracket and a plurality of battery cells, the upper end of the battery cell is mounted on the upper bracket, the lower end of the battery cell is mounted on the lower bracket, and the upper bracket and the lower bracket are fixed by bolts.

[0009] In one embodiment, a heat dissipation duct is provided between every two adjacent groups of battery cells.

[0010] In one of the embodiments, a plurality of heat dissipation holes are provided on the upper bracket.

[0011] The above-mentioned high-sealing performance battery pack has a simple structure and a reasonable design. While enhancing the structural stability, it also reduces the weight of the battery pack. In addition, the battery cells are installed in the battery pack to achieve complete sealing of the battery cells, so that the battery pack as a whole has a good waterproof effect, which can reach IPX8 and 10 meters water pressure waterproof, meeting the needs of underwater or underwater electrical products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the explosion structure of a high sealing performance battery pack of the utility model;

[0013] Figure 2 This is a schematic diagram of the assembly structure of a high sealing performance battery pack of the utility model;

[0014] Figure 3 This is a schematic diagram of the battery module structure of a high sealing performance battery pack of the utility model;

[0015] Figure 4 The utility model is a schematic cross-sectional structure diagram of a high sealing performance battery pack.

[0016] Among them, 10, battery box, 110, upper cover, 111, plug-in ribs, 120, lower shell, 121, glue groove, 130, gap, 140, handle, 20, battery module, 210, upper bracket, 211, heat dissipation through hole, 220, lower bracket, 230, battery cell, 240, heat dissipation duct. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] like Figures 1 to 4 As shown, a high sealing performance battery pack includes a battery box 10 and a battery module 20 installed in the battery box 10, the battery box 10 includes an upper cover 110 and a lower shell 120, the upper cover 110 and the lower shell 120 are buckled and fixed by bolts, and the upper cover 110 and the lower shell 120 are sealed with glue; wherein, the edge of the lower shell 120 is provided with a glue groove 121 extending inward, the edge of the upper cover 110 is provided with a plug-in rib 111 corresponding to the position of the glue groove 121, the plug-in rib 111 is plugged with the glue groove 121 to form a maze structure, and a gap 130 is provided between the glue groove 121 and the plug-in rib 111, so that the waterproof glue can make the upper cover 110 and the lower shell 120 completely sealed to ensure the sealing effect. In the utility model, the setting of the maze structure can ensure that it still has a good waterproof effect when it is not fully coated with waterproof glue, thereby ensuring the sealing of the battery pack.

[0021] Furthermore, the battery box 10 also includes a handle 140, which is located at the front end of the battery box 10, and the handle 140 is integrally formed with the battery box 10. The use of an integral molding process can effectively improve production efficiency and enhance structural stability.

[0022] Furthermore, the battery box 10 is an ABS / PC alloy box body. In the present invention, the box body made of ABS / PC alloy material not only has good flame retardant and electrical insulation properties, but also can reduce the weight of the battery pack.

[0023] Furthermore, the battery module 20 includes an upper bracket 210, a lower bracket 220 and a plurality of battery cells 230, the upper ends of the battery cells 230 are mounted on the upper bracket 210, and the lower ends of the battery cells 230 are mounted on the lower bracket 220, and the upper bracket 210 and the lower bracket 220 are fixed by bolt connection, which is beneficial to enhancing the firmness of the battery cells 230 and improving the maintainability of the battery pack.

[0024] In addition, in the utility model, a plurality of heat dissipation holes 211 are provided on the upper bracket 210, and a heat dissipation duct 240 is provided between each two adjacent groups of battery cells 230. The setting of the heat dissipation duct 240 and the heat dissipation holes 211 is conducive to improving the fluidity of the airflow, dissipating the heat of the battery cells 230, and further improving the heat dissipation effect of the battery pack, so that it has a heat dissipation function while meeting the waterproof requirement.

[0025] The above-mentioned high sealing performance battery pack has a simple structure and a reasonable design. While enhancing the structural stability, it also reduces the weight of the battery pack. In addition, the battery cell 230 is installed in the battery pack to achieve complete sealing of the battery cell 230, so that the battery pack as a whole has a good waterproof effect, which can reach IPX8 and 10 meters water pressure waterproof, meeting the needs of underwater or underwater electrical products.

[0026] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A high sealing performance battery pack, comprising a battery box and a battery module installed in the battery box, wherein the battery box comprises an upper cover and a lower shell, wherein the upper cover and the lower shell are buckled and fixed by bolts, and the upper cover and the lower shell are sealed with glue, characterized in that: The edge of the lower shell is provided with a gluing groove extending inward, and the edge of the upper cover is provided with a plug-in rib corresponding to the position of the gluing groove. The plug-in rib is plug-fitted with the gluing groove to form a maze structure.

2. A high sealing performance battery pack according to claim 1, characterized in that: A gap is provided between the glue groove and the plug-in rib.

3. A high sealing performance battery pack according to claim 1, characterized in that: The battery box also includes a handle, which is located at the front end of the battery box and is integrally formed with the battery box.

4. A high sealing performance battery pack according to claim 3, characterized in that: The battery box is an ABS / PC alloy box.

5. A high sealing performance battery pack according to claim 1, characterized in that: The battery module comprises an upper bracket, a lower bracket and a plurality of battery cells, the upper end of the battery cell is mounted on the upper bracket, the lower end of the battery cell is mounted on the lower bracket, and the upper bracket and the lower bracket are connected and fixed by bolts.

6. A high sealing performance battery pack according to claim 5, characterized in that: A heat dissipation duct is provided between each two adjacent groups of battery cells.

7. A high sealing performance battery pack according to claim 6, characterized in that: The upper bracket is provided with a plurality of heat dissipation through holes.

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