Modular flexible contact battery holder

Abstract

The utility model discloses a kind of modular elastic contact battery support, belong to lithium battery support technical field, including the battery module of sequentially connected multiple, battery module includes connecting frame and the electric core of being installed in connecting frame, connecting frame both ends are equipped with anode connecting piece and cathode connecting piece, anode connecting piece and cathode connecting piece are located at the both sides of connecting frame respectively, in two battery modules adjacent, the anode connecting piece of one battery module is contacted with the cathode connecting piece of another battery module.The beneficial effects of the utility model are that by installing electric core in connecting frame, anode connecting piece and cathode connecting piece are respectively arranged in the end portion of the both sides of connecting frame, the positive pole and the negative pole end of adjacent battery module are sequentially connected to form loop, any number of battery module can be connected in series, improve product applicability, when electric core fails, disassembly and maintenance are also more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery bracket technology, and in particular relates to a modular elastic contact battery bracket. Background Technology

[0002] Currently, electric vehicle lithium batteries on the market are mainly composed of lithium cells, a battery management system (BMS), a casing, and internal structural components. It is an integrated product with complex integration processes and high equipment costs. Existing power lithium battery integration processes mostly use welding and other methods for fixing. Once the lithium battery is formed, it is difficult to disassemble and repair. Most lithium batteries are produced in a customized manner. Since users generally lack professional maintenance and repair personnel, professional equipment, and related components, when product quality problems occur, users often need to wait for professional technicians to repair or return the product to the factory for inspection. However, lithium batteries are classified as dangerous goods and their transportation is also restricted, resulting in high costs and long cycles for returning lithium batteries to the factory for repair, which is unacceptable to users and makes lithium battery repair and maintenance difficult.

[0003] Therefore, a modular, flexible contact battery holder is needed that can be assembled into any number of battery modules according to customer needs, and can continue to be used simply by replacing the corresponding battery module when a failure occurs. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a modular flexible contact battery holder that can arbitrarily assemble or replace battery modules according to customer needs, thereby improving product applicability.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a modular elastic contact battery holder, comprising a plurality of battery modules connected in sequence, wherein each battery module includes a connecting frame and a battery cell installed in the connecting frame, wherein a positive electrode connecting piece and a negative electrode connecting piece are respectively provided at both ends of the connecting frame, the positive electrode connecting piece and the negative electrode connecting piece are respectively located on both sides of the connecting frame, and in two adjacent battery modules, the positive electrode connecting piece of one battery module is in contact with the negative electrode connecting piece of the other battery module.

[0006] Optionally, one end of the connecting bracket is provided with a groove, and the other end of the connecting bracket is provided with a protrusion. The positive electrode connecting piece is installed in the groove, and the negative electrode connecting piece is installed in the protrusion. When the groove and the protrusion are in the inserted state, the positive electrode connecting piece and the negative electrode connecting piece are in close contact.

[0007] Optionally, the positive electrode connector includes a first flow guiding surface, and a first fixing foot is connected to one side of the first flow guiding surface; the negative electrode connector includes a second flow guiding surface adapted to the first flow guiding surface, and a second fixing foot is connected to one side of the second flow guiding surface.

[0008] Optionally, both the first and second guide surfaces are provided with positioning guide holes, the position and number of which correspond to the protrusions.

[0009] Optionally, a sensor for monitoring the temperature of the connecting piece is provided on the inner side of the positive electrode connecting piece.

[0010] Optionally, a data acquisition structure is provided on one side of the negative electrode connection piece.

[0011] Optionally, the connecting frame has a mounting groove on one side for installing battery cells, and a through groove on the other side, which is connected to the mounting groove.

[0012] Optionally, a pressure plate is provided on the outer side of the battery module located at the outermost edge, and two pressure plates are used to press and fix multiple battery modules together.

[0013] Optionally, the connecting frame has connecting holes at its four corners, the pressure plate has mounting holes at its four corners corresponding to the positions of the connecting holes, and the pressure plate also has screws at its four corners, the screws passing through the mounting holes and connecting holes in sequence.

[0014] Optionally, the end of the pressure plate is provided with an L-shaped connecting plate, which is used to connect the entire battery module to an external device.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: 1. By installing the battery cells in the connecting frame, positive and negative connecting plates are respectively set at the ends of the connecting frame. The positive and negative terminals of adjacent battery modules are connected in sequence to form a circuit, which can connect any number of battery modules in series, improving product applicability. Disassembly and maintenance are also more convenient when the battery cells fail. The negative connecting plate is a spring. When the positive and negative connecting plates are subjected to opposing pressure, the spring slightly deforms and provides a certain rebound force, thereby improving the contact stability and safety between the connecting plates.

[0016] 2. By redesigning the connection between battery modules, connectors, and cells, the problem of complex battery manufacturing processes and difficult rework in existing products has been solved. When dealing with different battery series connection requirements, it is no longer necessary to develop corresponding battery bracket molds for each series connection quantity, which reduces production and R&D costs and improves production efficiency.

[0017] 3. The flexible contact connectors allow for the connection of different numbers of battery cells in series, reducing design and development costs. The module can be assembled, disassembled, and repaired using only a screwdriver, replacing the welding process commonly used in lithium battery assembly and greatly facilitating production and maintenance. Attached Figure Description

[0018] Figure 1The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 The diagram shows the front and back of the battery module of this utility model. Figure 3 and Figure 4 The diagram shown is an enlarged view of the connection point of the battery module of this utility model; Figure 5 The diagram shown is a structural schematic of the positive electrode connecting piece and the negative electrode connecting piece of this utility model; Figure 6 The diagram shown is a schematic diagram of the overall disassembly structure of this utility model; Figure 7 The diagram shown is a schematic diagram of the assembly state of the connecting piece and the connecting frame of this utility model.

[0019] In the diagram: 1. Battery module; 101. Connecting bracket; 102. Groove; 103. Protrusion; 104. Through slot; 2. Battery cell; 3. Positive electrode connecting piece; 301. First flow guiding surface; 302. First fixing foot; 303. Sensor; 4. Negative electrode connecting piece; 401. Second flow guiding surface; 402. Second fixing foot; 403. Data acquisition structure; 5. Pressure plate; 6. L-shaped connecting plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1 Reference Figures 1-2 This embodiment provides a modular elastic contact battery holder, specifically including a plurality of battery modules 1 connected in sequence. Each battery module 1 includes a connecting frame 101 and a battery cell 2 installed in the connecting frame 101. The connecting frame 101 has a positive electrode connecting piece 3 and a negative electrode connecting piece 4 at both ends. The positive electrode connecting piece 3 and the negative electrode connecting piece 4 are located on both sides of the connecting frame 101. In two adjacent battery modules 1, the positive electrode connecting piece 3 of one battery module 1 is in contact with the negative electrode connecting piece 4 of the other battery module 1.

[0024] The battery cell 2 has a positive terminal contact and a negative terminal contact at both ends, which are respectively connected to the positive terminal contact 3 and the negative terminal contact 4 in contact. Multiple battery modules 1 are connected in parallel in sequence, with the positive and negative terminals of every two adjacent battery modules 1 in opposite positions to form a series circuit. The negative terminal contact 4 is designed as a spring, with a certain degree of deformation and rebound capability. When two battery modules 1 are pressed together, the positive terminal contact 3 in one battery module 1 and the negative terminal contact 4 in the other battery module 1 are in close contact, and the negative terminal contact 4 undergoes slight deformation under force. The rebound force improves the contact stability between the two. The positive terminal contact 3 and the negative terminal contact 4 adopt a contact connection, replacing fixed connection methods such as welding, making disassembly, assembly, and maintenance more convenient.

[0025] Example 2 This embodiment provides a modular elastic contact battery holder, which differs from the first embodiment in that one end of the connecting bracket 101 is provided with a groove 102 and the other end of the connecting bracket 101 is provided with a protrusion 103. The positive electrode connecting piece 3 is installed in the groove 102 and the negative electrode connecting piece 4 is installed in the protrusion 103. When the groove 102 and the protrusion 103 are in the inserted state, the positive electrode connecting piece 3 and the negative electrode connecting piece 4 are in close contact.

[0026] The positive electrode connector 3 includes a first guide surface 301, and a first fixing foot 302 is connected to one side of the first guide surface 301. The negative electrode connector 4 includes a second guide surface 401 adapted to the first guide surface 301, and a second fixing foot 402 is connected to one side of the second guide surface 401. Both the first guide surface 301 and the second guide surface 401 are provided with positioning guide holes, and the position and number of positioning guide holes correspond to the protrusion 103.

[0027] A sensor 303 for monitoring the temperature of the positive electrode connector 3 is provided on the inner side. A data acquisition structure 403 is provided on one side of the negative electrode connector 4. A mounting slot for mounting the battery cell 2 is provided on one side of the connector 101, and a through slot 104 is provided on the other side of the connector 101, which is connected to the mounting slot.

[0028] A pressure plate 5 is provided on the outer side of the outermost battery module 1. Two pressure plates 5 are used to press and fix multiple battery modules 1 together. Connection holes are provided at the four corners of the connecting bracket 101, and mounting holes corresponding to the connection holes are provided at the four corners of the pressure plate 5. Screws are also provided at the four corners of the pressure plate 5, and the screws pass through the mounting holes and connection holes in sequence. An L-shaped connecting plate 6 is provided at the end of the pressure plate 5. The L-shaped connecting plate 6 is used to connect the entire battery module to external equipment.

[0029] The connecting frame 101 is also provided with a wiring channel structure and a cavity for fixing the battery cell 2. The first fixing foot 302 and the second fixing foot 402 are fixed on the connecting frame 101 by a snap-fit ​​structure. By swapping and stacking the two ends of the battery module 1, the battery cell 2 is connected in series. The spring piece is used as a contact conductive element to contact the battery cell 2.

[0030] Multiple battery modules 1 and two pressure plates 5 are clamped together by screws and nuts to fix the battery cells 2, forming a battery module. The battery system can be heated during charging or discharging in low-temperature environments. It has an active heat dissipation structure for high-rate charging and discharging. The battery system can determine whether the elastic contact between the connecting pieces is normal by monitoring the temperature of the connecting pieces. The acquisition structure 403 is provided with acquisition holes for connecting circuit monitoring equipment.

[0031] In use, the battery cell 2 is installed in the cavity of the connector 101, the positive electrode connecting piece 3 is installed in the corresponding groove 102 of the connector 101, and the negative electrode connecting piece 4 is installed in the corresponding protrusion 103 of the connector 101. The battery cells are then snapped together with the connector 101 by the first fixing foot 302 and the second fixing foot 402, thus completing the installation of a single battery module 1. Then, multiple battery modules 1 are installed in the same way.

[0032] When assembling two battery modules 1, the two ends of one battery module 1 are swapped, and the protrusion 103 in one battery module 1 is inserted into the groove 102 in the other battery module 1. At this time, the positioning guide holes on the first guide surface 301 and the second guide surface 401 are fitted onto the protrusion 103 to achieve fixed guidance. Multiple battery modules 1 are assembled sequentially according to specific requirements, and pressure plates 5 are added at both edges. Then, the entire battery module is pressed and fixed by screws and nuts.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A modular elastic contact battery holder, characterized in that, The battery module (1) includes multiple battery modules (1) connected in sequence. Each battery module (1) includes a connecting frame (101) and a battery cell (2) installed in the connecting frame (101). The connecting frame (101) has a positive electrode connecting piece (3) and a negative electrode connecting piece (4) at both ends. The positive electrode connecting piece (3) and the negative electrode connecting piece (4) are located on both sides of the connecting frame (101). In two adjacent battery modules (1), the positive electrode connecting piece (3) of one battery module (1) is in contact with the negative electrode connecting piece (4) of the other battery module (1).

2. The modular elastic contact battery holder according to claim 1, characterized in that, One end of the connecting frame (101) is provided with a groove (102), and the other end of the connecting frame (101) is provided with a protrusion (103). The positive electrode connecting piece (3) is installed in the groove (102), and the negative electrode connecting piece (4) is installed in the protrusion (103). When the groove (102) and the protrusion (103) are in the inserted state, the positive electrode connecting piece (3) and the negative electrode connecting piece (4) are in close contact.

3. The modular elastic contact battery holder according to claim 2, characterized in that, The positive electrode connecting piece (3) includes a first flow guiding surface (301), and a first fixing foot (302) is connected to one side of the first flow guiding surface (301). The negative electrode connecting piece (4) includes a second flow guiding surface (401) adapted to the first flow guiding surface (301), and a second fixing foot (402) is connected to one side of the second flow guiding surface (401).

4. The modular elastic contact battery holder according to claim 3, characterized in that, The first guide surface (301) and the second guide surface (401) are both provided with positioning guide holes, and the position and number of the positioning guide holes correspond to the protrusion (103).

5. The modular elastic contact battery holder according to claim 1, characterized in that, A sensor (303) for monitoring the temperature of the positive electrode connecting piece (3) is provided on the inner side of the connecting piece.

6. The modular elastic contact battery holder according to claim 5, characterized in that, A collection structure (403) is provided on one side of the negative electrode connecting piece (4).

7. The modular elastic contact battery holder according to claim 1, characterized in that, The connecting frame (101) has an installation slot for installing the battery cell (2) on one side, and a through slot (104) is provided on the other side of the connecting frame (101), which is connected to the installation slot.

8. The modular elastic contact battery holder according to claim 1, characterized in that, A pressure plate (5) is provided on the outer side of the battery module (1) located at the outermost edge. The two pressure plates (5) are used to press and fix the multiple battery modules (1).

9. The modular elastic contact battery holder according to claim 8, characterized in that, The connecting frame (101) has connecting holes at its four corners, and the pressure plate (5) has mounting holes at its four corners corresponding to the positions of the connecting holes. The pressure plate (5) also has screws at its four corners, and the screws pass through the mounting holes and connecting holes in sequence.

10. The modular elastic contact battery holder according to claim 9, characterized in that, The end of the pressure plate (5) is provided with an L-shaped connecting plate (6), which is used to connect the entire battery module to external equipment.

Images