Battery pack connection structure and battery pack thereof

Abstract

The utility model relates to a kind of battery pack connecting structure and its battery pack of fluid sensor technical field, including two fixed seats and its several fixed frames, several fixed frames are respectively vertically structured and set around the fixed seat, and the top end and bottom end of fixed frame are fixedly connected with corresponding fixed seat respectively, the cavity that can accommodate multiple batteries is formed between two fixed seats, the side of fixed frame close to battery level column is equipped with several inward recessed inlay slots, inlay slot, the inside of inlay slot is equipped with conductive spring, and conductive spring is used to connect the battery level column of adjacent two batteries, both reduce the position and space of welding installation required by conductive spring, while multiple single batteries can be connected in series and parallel combination into effective battery pack of electric connection.

Description

Technical Field

[0001] This utility model relates to the field of fluid sensor technology, and in particular to a battery pack connection structure and its battery pack. Background Technology

[0002] With the increasing development of new energy vehicles, in order to meet the energy and voltage requirements of electric vehicles, their power battery systems consist of one or more battery packs. Generally speaking, each battery pack consists of several battery modules, and each battery module consists of several individual cells. Typically, several individual cells are connected in series and parallel to form a battery module, and then multiple batteries are integrated using a battery module frame and its battery pack to form a complete battery module.

[0003] In the prior art, the power system is composed of several batteries connected in series and parallel. Multiple individual batteries are combined in series and parallel to form an energy pack with a certain voltage and capacity. Therefore, when the batteries are connected in series and parallel, the conductive springs need to be welded and fixed to the corresponding battery terminals to prevent them from detaching.

[0004] However, with the development of new energy vehicles, there is a need to reduce the overall structure of existing battery packs while maintaining their capacity. Therefore, there is an urgent need to develop a battery pack connection structure and battery pack to meet practical application requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a battery pack connection structure and a battery pack thereof, which can meet the above-mentioned technical requirements.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A battery pack connection structure includes two fixing bases and several fixing frames. The fixing frames are arranged vertically around the fixing bases, and the top and bottom ends of the fixing frames are fixedly connected to the corresponding fixing bases. A cavity that can accommodate multiple batteries is formed between the two fixing bases. The side of the fixing frame near the battery post is provided with several inwardly recessed fitting grooves. The fitting grooves are provided with conductive springs inside, which are used to connect the battery posts of two adjacent batteries.

[0008] As a further embodiment of the above description, the top and bottom ends of the conductive spring are provided with inwardly protruding contact protrusions, and the two ends of the conductive spring abut against the battery terminal post through the contact protrusions.

[0009] As a further embodiment of the above description, the top and bottom ends of the conductive spring are provided with outwardly extending mounting inserts, and the top and bottom ends of the limiting slot of the fitting groove are provided with limiting slots. The mounting inserts are inserted and fixed with the limiting slots through the mounting inserts.

[0010] As a further embodiment of the above description, the limiting slot has an outwardly inclined cross-section and is located inside the fitting groove. The mounting insert can be bent at both ends of the conductive spring to match the limiting slot.

[0011] The battery pack includes the aforementioned battery pack connection structure and several battery cells. The battery cells are arranged in a vertical linear array and embedded in the cavity. One end of each battery cell is a protruding battery post, which is electrically connected to a conductive spring piece embedded in a groove within a fixed frame.

[0012] As a further solution described above, a limiting pad is provided between two adjacent batteries to create a gap. The limiting pad is a rectangular sheet structure consistent with the battery. An empty groove is provided in the middle of the limiting pad. The empty groove is a rectangular slot structure consistent with the limiting pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the conductive springs connected in series and parallel are fixed by the fitting groove in the fixed frame, and then the fixed frame and the fixed seat are integrated to form a battery fixing frame, so that the conductive springs and the fixed frame form an integrated structure, which reduces the position and space required for welding and installation of the conductive springs, and at the same time ensures that multiple individual batteries can be connected in series and parallel to form a battery pack with effective electrical connection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the battery pack described in this embodiment;

[0015] Figure 2 This is an exploded view of the battery structure described in this embodiment;

[0016] Figure 3 This is a cross-sectional view of the battery pack described in this embodiment;

[0017] Figure 4 This is a schematic diagram of the fixed frame structure in a battery pack connection structure described in this embodiment;

[0018] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part A in the diagram;

[0019] In the diagram: 1-fixed base, 2-fixed frame, 21-fitting groove, 22-limiting slot, 3-conductive spring, 31-contact protrusion, 32-mounting insert, 4-shield, 41-clearance groove, 5-battery. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] For this embodiment, please refer to Figures 1-5 The specific implementation of the battery pack connection structure includes two fixing bases 1 and several fixing frames 2. The fixing frames 2 are arranged vertically around the fixing bases 1, and the top and bottom ends of the fixing frames 2 are fixedly connected to the corresponding fixing bases 1. A cavity that can accommodate multiple batteries 5 is formed between the two fixing bases 1. The side of the fixing frame 2 near the battery 5 post is provided with several inwardly recessed fitting grooves 21. The fitting grooves 21 are provided with conductive springs 3 inside, which are used to connect the battery 5 posts of two adjacent batteries 5.

[0022] The series-parallel conductive springs 3 are fixed by the fitting grooves 21 in the fixed frame 2, and then the fixed frame 2 and the fixed base 1 are integrated to form a fixed frame for the battery 5, so that the conductive springs 3 and the fixed frame 2 form an integrated structure. This reduces the position and space required for welding and installation of the conductive springs 3, and at the same time ensures that multiple individual batteries 5 can be connected in series and parallel to form a battery pack with effective electrical connection.

[0023] Specific examples Figure 5 As shown, the top and bottom of the conductive spring 3 are provided with inwardly protruding contact protrusions 3, and the two ends of the conductive spring 3 abut against the battery 5 post through the contact protrusions 3.

[0024] In the next step, such as Figure 3 and Figure 5 As shown, the top and bottom ends of the conductive spring 3 are provided with outwardly extending mounting inserts 32. The top and bottom ends of the limiting slot 22 of the fitting groove 21 are provided with limiting slots 22. The mounting inserts 32 are inserted and fixed to the limiting slots 22. The cross section of the limiting slot 22 is inclined outward and is opened inside the fitting groove 21. The mounting inserts 32 can be bent at both ends of the conductive spring 3 to match the limiting slots 22.

[0025] The limiting slot 22 has an outwardly inclined cross-section and is opened inside the fitting groove 21. When the conductive spring 3 is embedded in the fitting groove 21, under the pressure of the contact protrusion 3 and the battery 5 terminal, the bent mounting insert 32 can firmly extend outward and abut against the limiting slot 22, forming a stable limiting structure and ensuring the connection stability between the fixed frame 2 and the conductive spring.

[0026] In this embodiment, please refer to Figures 1-3The specific implementation of the battery pack includes the above-mentioned battery pack connection structure and several battery blocks 5. The several battery blocks 5 are arranged in a vertical linear array and are respectively embedded in the cavity. One end of the battery 5 is a protruding battery 5 post, and the battery 5 post is electrically connected to the conductive spring 3 of the embedded groove 21 in the fixed frame 2.

[0027] A limiting pad 4 is provided between two adjacent batteries 5 for spacing. The limiting pad 4 is a rectangular sheet structure consistent with the battery 5. A clearance groove 41 is opened in the middle of the limiting pad 4. The clearance groove 41 is a rectangular empty groove structure consistent with the limiting pad 4. The cavity is divided into several fixed cavities by the limiting pad 4, which enhances the heat dissipation capacity of the battery 5 module. At the same time, the clearance groove 41 opened in the limiting pad 4 reduces the heat transfer between batteries 5 in direct contact.

[0028] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A battery pack connection structure, comprising two fixing bases and several fixing frames, wherein the fixing frames are vertically arranged around the fixing bases, and the top and bottom ends of the fixing frames are fixedly connected to the corresponding fixing bases, and a cavity for accommodating multiple batteries is formed between the two fixing bases, characterized in that: The fixed frame has several inwardly recessed fitting grooves on the side near the battery column. The fitting grooves are equipped with conductive springs inside, which are used to connect the battery columns of two adjacent batteries.

2. The battery pack connection structure according to claim 1, characterized in that: The conductive spring sheet has inwardly protruding contact protrusions at both its top and bottom ends, and the two ends of the conductive spring sheet abut against the battery terminal post through the contact protrusions.

3. The battery pack connection structure according to claim 1, characterized in that: The conductive spring is provided with an outwardly extending mounting insert at both the top and bottom ends. The limiting slot of the fitting groove is provided with a limiting slot at both the top and bottom ends. The mounting insert is fixed by being inserted into the limiting slot.

4. The battery pack connection structure according to claim 3, characterized in that: The limiting slot has an outwardly inclined cross-section and is located inside the fitting groove. The mounting insert can be bent at both ends of the conductive spring to match the limiting slot.

5. A battery pack, characterized in that: The battery pack includes a battery pack connection structure as described in any one of claims 1-4 and a plurality of battery cells. The plurality of battery cells are arranged in a vertical linear array and are respectively embedded in the cavity. One end of the battery cell is a protruding battery post, and the battery post is electrically connected to a conductive spring piece embedded in the groove of the fixed frame.

6. The battery pack according to claim 5, characterized in that: A limiting pad is provided between two adjacent batteries to separate them. The limiting pad is a rectangular sheet structure consistent with the battery. An empty groove is opened in the middle of the limiting pad. The empty groove is a rectangular groove structure consistent with the limiting pad.

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