Electric automobile current busbar connecting piece

Abstract

The utility model discloses a current busbar connecting piece of an electric automobile, which comprises a storage battery monomer and a current busbar, the top of the storage battery monomer is provided with a positive pole and a negative pole, the positive pole and the negative pole are internally provided with mounting cavities, the inner cavity of each mounting cavity is provided with a spring buckle, and the spring buckles are arranged, so that the current busbar connecting piece of the electric automobile is formed. The spring buckles are clamped into the clamping and fixing holes, so that the current busbars can be quickly clamped and fixed to achieve electric connection between every two storage battery single bodies, the spring buckles are pressed out of the clamping and fixing holes, so that the current busbars can be quickly disassembled, replaced and overhauled, and use is convenient; the heat dissipation assembly can rapidly dissipate heat on the current busbar, the heat dissipation efficiency of the current busbar can be effectively improved, potential safety hazards can be effectively reduced, the heat dissipation performance of the current busbar can be further improved by arranging the heat dissipation ports in the current busbar, and heat is not prone to being gathered.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a current busbar connector for an electric vehicle. Background Art

[0002] Currently, lithium-ion power batteries are widely used in electric vehicles, especially large-capacity, high-power lithium-ion power batteries used in vehicles. Their performance is greatly affected by temperature changes. The space for arranging batteries in electric vehicles is limited, while the number of batteries required in the vehicle is large and the battery connections are arranged closely. When the vehicle is running under different driving conditions such as high speed, low speed, acceleration, and deceleration, the battery will discharge at different rates. The discharge of lithium-ion batteries is itself a heat release process, so a large amount of heat will be generated in the battery pack. In addition, time accumulation and spatial influence will cause uneven heat accumulation, resulting in complex and changeable temperature of the battery operating environment. Due to the large heat generation of the battery and the dense placement of the batteries, more heat will inevitably accumulate in the middle area and less heat in the edge area, which will inevitably lead to temperature imbalance between the cells in the battery pack, aggravating the inconsistency of the internal resistance and capacity of each battery cell. If accumulated for a long time, it will cause some batteries to be overcharged and over-discharged, thereby affecting the life and life of the entire battery pack. Performance, and cause safety hazards. In order to avoid the power battery temperature from being too high and affecting the battery performance, electric vehicles are equipped with a cooling system to cool the power battery, but it still cannot solve the problem of excessive temperature in local areas, especially the busbar connecting the positive and negative poles of adjacent battery cells. Because the current flowing through is large, the heat generation is also large, and the cooling system is difficult to directly cool the area, so the temperature of the local area is relatively high. The invention with application number 201310445825.X discloses a battery busbar connection structure and its busbar, the battery busbar includes a conductive sheet and a plurality of heat sinks, the heat sinks are fixed on the surface of the conductive sheet at intervals, the invention is provided with a heat sink on the surface of the conductive sheet, and the heat sink can be used to dissipate the heat of the connection structure between the battery cells, but the battery busbar in the invention is directly connected to the positive pole and the negative pole through a through hole. Although it is convenient for connection, the battery busbar lacks effective fixation and is easy to loosen and fall.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes an electric vehicle current busbar connector to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A current busbar connector for an electric vehicle comprises a battery cell and a current busbar, wherein a positive pole and a negative pole are arranged on the top of the battery cell, and mounting cavities are arranged inside the positive pole and the negative pole, and spring buckles are arranged inside the mounting cavities, and the current busbar is fixedly connected between the positive pole and the negative pole on the top of the left and right groups of the battery cells by means of the spring buckles, and a heat dissipation component is fixedly arranged on the top of the current busbar.

[0007] Preferably, the current busbar comprises a busbar body, and connecting sleeves are symmetrically fixedly provided at the bottom of both ends of the busbar body, and a fixing hole is provided on one side of the connecting sleeve.

[0008] Preferably, heat dissipation openings are equidistantly provided on the busbar body.

[0009] Preferably, the spring buckle includes a return spring, and one end of the return spring is fixedly connected to one side of the inner cavity of the installation cavity, and the other end of the return spring is fixedly connected to a limiting pin.

[0010] Preferably, the limit pin on the spring buckle matches the fixing hole on one side of the connecting sleeve.

[0011] Preferably, the heat dissipation assembly comprises a heat dissipation plate, and heat dissipation fins are fixedly arranged at equal intervals on the top of the heat dissipation plate.

[0012] The beneficial effects of the utility model are as follows: by arranging a spring clip, the spring clip can be clipped into the clipping hole to quickly clip and fix the current busbar to achieve electrical connection between the battery cells; by pressing the spring clip out of the clipping hole, the current busbar can be quickly disassembled, replaced and repaired, and it is easy to use; by arranging a heat dissipation component, the heat dissipation component can quickly dissipate the heat on the current busbar, which can effectively improve the heat dissipation efficiency of the current busbar and effectively reduce safety hazards; by arranging a heat dissipation opening on the current busbar, the heat dissipation performance of the current busbar can be further improved, and heat is not easy to accumulate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a structural diagram of a current busbar connector for an electric vehicle according to an embodiment of the utility model;

[0015] Figure 2This is a front view of an electric vehicle current busbar connector according to an embodiment of the utility model;

[0016] Figure 3 It is a cross-sectional view of a current busbar connector of an electric vehicle at point A according to an embodiment of the utility model;

[0017] Figure 4 The present invention is a structural diagram of a current busbar of a current busbar connector for an electric vehicle according to an embodiment of the present invention.

[0018] In the figure:

[0019] 1. Battery cell; 2. Current bus; 3. Positive pole; 4. Negative pole; 5. Mounting cavity; 6. Spring buckle; 7. Heat dissipation assembly; 8. Bus body; 9. Connecting sleeve; 10. Fixing hole; 11. Heat dissipation port; 12. Reset spring; 13. Limit pin; 14. Heat dissipation plate; 15. Heat dissipation fin. DETAILED DESCRIPTION

[0020] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] According to an embodiment of the utility model, a current busbar connector for an electric vehicle is provided. Example

[0022] like Figure 1-4As shown, according to an embodiment of the utility model, an electric vehicle current busbar connector comprises a battery cell 1 and a current busbar 2. A positive pole column 3 and a negative pole column 4 are arranged on the top of the battery cell 1. A mounting cavity 5 is arranged inside the positive pole column 3 and the negative pole column 4. A spring buckle 6 is arranged inside the mounting cavity 5. The current busbar 2 is fixedly connected between the positive pole column 3 and the negative pole column 4 on the top of the left and right groups of battery cells 1 through the spring buckle 6. The spring buckle 6 is inserted into the fixing hole 10 to quickly fix the current busbar 2 to realize the battery cell. 1 The electrical connection between the two, the spring buckle 6 can be pressed out from the fixing hole 10 to quickly disassemble, replace and repair the current bus 2. A heat dissipation component 7 is fixedly arranged on the top of the current bus 2. The current bus 2 includes a bus body 8. Connecting sleeves 9 are symmetrically fixedly arranged at the bottom of both ends of the bus body 8. A fixing hole 10 is opened on one side of the connecting sleeve 9. Heat dissipation openings 11 are equidistantly opened on the bus body 8. By arranging the heat dissipation openings 11 on the current bus 2, the heat dissipation performance of the current bus 2 can be further improved, and heat is not easy to accumulate. Example

[0023] like Figure 1-4 As shown, according to an embodiment of the utility model, an electric vehicle current busbar connector comprises a battery cell 1 and a current busbar 2. A positive pole column 3 and a negative pole column 4 are arranged on the top of the battery cell 1. An installation cavity 5 is arranged inside the positive pole column 3 and the negative pole column 4. A spring buckle 6 is arranged inside the installation cavity 5. The current busbar 2 is connected between the positive pole column 3 and the negative pole column 4 on the top of the left and right groups of battery cells 1 by the spring buckle 6. The spring buckle 6 is inserted into the fixing hole 10 to quickly fix the current busbar 2 to realize the electrical connection between the battery cells 1. , press the spring buckle 6 out of the fixing hole 10 to quickly disassemble, replace and repair the current bus 2. A heat dissipation component 7 is fixedly provided on the top of the current bus 2. The spring buckle 6 includes a reset spring 12, and one end of the reset spring 12 is fixedly connected to one side of the inner cavity of the installation cavity 5, and the other end of the reset spring 12 is fixedly connected to a limiting pin 13. The limiting pin 13 on the spring buckle 6 matches the fixing hole 10 on one side of the connecting sleeve 9. The spring buckle 6 is inserted into the fixing hole 10 to quickly fix the current bus 2 to realize the electrical connection between the battery cells 1. Example

[0024] like Figure 1-4As shown, according to an embodiment of the utility model, an electric vehicle current busbar connector comprises a battery cell 1 and a current busbar 2. A positive pole 3 and a negative pole 4 are arranged on the top of the battery cell 1. Both the positive pole 3 and the negative pole 4 are provided with mounting cavities 5. The inner cavity of the mounting cavity 5 is provided with spring buckles 6. The current busbar 2 is fixedly connected between the positive pole 3 and the negative pole 4 on the tops of the left and right groups of battery cells 1 through the spring buckles 6. The spring buckles 6 are inserted into the fixing holes 10 to quickly fix the current busbar 2 to realize the electrical connection between the battery cells 1. The spring buckles 6 are pressed out of the fixing holes 10 to quickly disassemble, replace and repair the current busbar 2. A heat dissipation component 7 is fixedly arranged on the top of the current busbar 2. The heat dissipation component 7 comprises a heat dissipation plate 14. Heat dissipation fins 15 are fixedly arranged on the top of the heat dissipation plate 14 at equal intervals. The heat dissipation component 7 can quickly dissipate the heat on the current busbar 2, effectively improve the heat dissipation efficiency of the current busbar 2, and effectively reduce safety hazards.

[0025] In summary, with the aid of the above-mentioned technical solution of the utility model, when the device is in use, the spring buckle 6 is inserted into the fixing hole 10 to quickly fix the current bus 2 to realize the electrical connection between the battery cells 1, and the spring buckle 6 is pressed out from the fixing hole 10 to quickly disassemble, replace and repair the current bus 2. The heat dissipation component 7 can quickly dissipate the heat on the current bus 2, which can effectively improve the heat dissipation efficiency of the current bus 2 and effectively reduce safety hazards. By arranging the heat dissipation opening 11 on the current bus 2, the heat dissipation performance of the current bus 2 can be further improved, and heat is not easy to accumulate.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric vehicle current busbar connector, comprising a battery cell (1) and a current busbar (2), characterized in that: A positive pole (3) and a negative pole (4) are provided on the top of the battery cell (1); a mounting cavity (5) is provided inside the positive pole (3) and the negative pole (4); a spring buckle (6) is provided inside the mounting cavity (5); and the current busbar (2) is fixedly connected between the positive pole (3) and the negative pole (4) on the top of the left and right groups of the battery cell (1) by means of the spring buckle (6); and a heat dissipation component (7) is fixedly provided on the top of the current busbar (2).

2. The electric vehicle current busbar connector according to claim 1, characterized in that: The current busbar (2) comprises a busbar body (8), connecting sleeves (9) are symmetrically fixedly provided at the bottom of both ends of the busbar body (8), and a fixing hole (10) is provided on one side of the connecting sleeve (9).

3. The electric vehicle current busbar connector according to claim 2, characterized in that: The busbar body (8) is provided with heat dissipation openings (11) at equal intervals.

4. The electric vehicle current busbar connector according to claim 3, characterized in that: The spring buckle (6) comprises a return spring (12), one end of the return spring (12) is fixedly connected to one side of the inner cavity of the installation cavity (5), and the other end of the return spring (12) is fixedly connected to a limit pin (13).

5. The electric vehicle current busbar connector according to claim 4, characterized in that: The limiting pin (13) on the spring buckle (6) matches the fixing hole (10) on one side of the connecting sleeve (9).

6. The electric vehicle current busbar connector according to claim 5, characterized in that: The heat dissipation assembly (7) comprises a heat dissipation plate (14), and heat dissipation fins (15) are fixedly arranged at equal intervals on the top of the heat dissipation plate (14).

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