Battery pack fixing and assembling structure

Abstract

The utility model discloses a battery pack fixing and assembling structure, relates to the technical field of battery assembly, and provides the following scheme aiming at the problems that the connection between existing battery assemblies is not tight any more and poor contact occurs: the battery pack fixing and assembling structure comprises a battery core shell, a battery upper joint, a battery lower joint and a fixing assembly, the battery core shell is used for accommodating a plurality of battery cores to form a battery pack; the battery upper joint and the battery lower joint are respectively arranged at two ends of the battery pack and are fixedly connected with the battery core shell; according to the utility model, the structure is novel, the first pin groove and the second pin groove are arranged at the upper end and the lower end of the battery upper joint and the battery lower joint, the elastic cylindrical pins are arranged in the battery upper joint and the battery lower joint, and mucilage glue is coated on the outer surface, so that the stability of the battery pack is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery assembly technical field especially relates to a battery pack fixed assembly structure. BACKGROUND

[0002] In the assembling process of the conventional battery pack, a series of problems are often caused due to improper fixing methods, which can include screw fastening, adhesive tape pasting, etc. They all have their own limitations. For example, screw fastening can cause looseness between battery components due to screw loosening or different tightening degrees, thereby affecting the overall stability and performance of the battery pack. Adhesive tape pasting can cause loose connection between battery components due to the weakening of the adhesive property of the adhesive tape over time, resulting in poor contact, which not only reduces the efficiency of the battery pack, but also can cause local overheating and increase the risk of short circuit. SUMMARY

[0003] The utility model provides a battery pack fixed assembly structure solves the prior art problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery pack fixed assembly structure, including battery core shell, battery upper connector, battery lower connector and fixed assembly, the battery core shell is used for containing multiple battery cores, forms the battery pack, the battery upper connector and battery lower connector are arranged at both ends of the battery pack respectively, and the battery upper connector and battery lower connector are fixedly connected with the battery core shell, the fixed assembly includes fuse tube, wire, elastic cylindrical pin and battery spacer, the fuse tube is connected to one side of the battery upper connector, the wire is connected to one side of the battery core, and the wire is used for connecting each battery core and external equipment, the elastic cylindrical pin is connected to the upper and lower sides of the battery upper connector and the battery lower connector, the battery spacer is provided with two, two battery spacers are connected to both ends of the battery pack, and one end of the battery upper connector is connected with a plug.

[0005] Preferably, the battery upper connector and the battery lower connector are both subjected to hard anodic oxidation treatment, the outer surface of the battery upper connector and the battery lower connector is ink green in color, and the external corners and burrs of the battery upper connector and the battery lower connector are subjected to polishing treatment.

[0006] Preferably, the battery upper connector is in the form of a circular cylindrical structure, a plurality of first tooth-shaped groove rings are provided at equal intervals at one end of the battery upper connector, a semicircular recess is provided at the other end of the battery upper connector, a through hole is provided in the middle of the battery upper connector, and one end of the semicircular recess of the battery upper connector is connected to the battery core shell.

[0007] Preferably, a wire passing hole is provided in the battery upper connector, a ring groove is provided at a position corresponding to the wire passing hole in the outer periphery of the battery upper connector, and a fuse tube is connected inside the ring groove.

[0008] Preferably, an arc bridge type wire pressing sheet is connected above one end of the upper battery joint, and a wire is fixed below the middle of the arc bridge type wire pressing sheet, a first pin groove is opened above and below one end of the upper battery joint close to the first tooth-shaped groove ring, and an elastic cylindrical pin is connected inside the first pin groove.

[0009] Preferably, a second tooth-shaped groove ring is opened at one end of the lower battery joint, a second pin groove is opened above and below one end of the lower battery joint close to the second tooth-shaped groove ring, and an elastic cylindrical pin is connected inside the second pin groove.

[0010] Preferably, the elastic cylindrical pins connected inside the upper battery joint and the lower battery joint are coated with adhesive outside.

[0011] The battery upper joint is provided with a fuse tube, the fuse tube is arranged at a position perpendicular to the wire hole, the wire is wound around the battery upper joint once and then enters the hole, and the stability and safety of the wiring are improved; the battery spacer is connected to both ends of the battery pack, the wiring part is kept more than 20mm away from the end face of the battery core outer cylinder, and the waterproof and moisture-proof performance and mechanical strength of the battery pack are improved; the first pin groove and the second pin groove are opened at the upper and lower ends of the battery upper joint and the battery lower joint, the elastic cylindrical pins are installed inside the first pin groove and the second pin groove, and the adhesive is coated on the outer surface of the elastic cylindrical pins, and the stability of the battery pack is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the utility model. Figure 1 It is a schematic diagram of A-A of the utility model.

[0014] Figure 3 It is a schematic diagram of B-B of the utility model. Figure 1 It is a schematic diagram of B-B of the utility model.

[0015] Figure 4 It is a schematic diagram of the battery upper joint of the utility model.

[0016] Figure 5 It is a sectional view of the utility model. Figure 4

[0017] It is a sectional view of the utility model. Figure 6

[0018] It is a sectional view of the utility model. Figure 7 Figure 6

[0019] ​​The figure label: 1, battery core shell; 2, battery upper connector; 201, first tooth-shaped groove ring; 202, through round hole; 203, wire hole; 204, ring groove; 205, first pin groove; 3, battery lower connector; 301, second tooth-shaped groove ring; 302, second pin groove; 4, fixed assembly; 401, safety tube; 402, wire; 403, elastic cylindrical pin; 404, battery spacer; 5, plug; 6, arc bridge type wire pressing piece. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Reference Figures 1-7 A battery pack fixed assembly structure, including battery core shell 1, battery upper connector 2, battery lower connector 3 and fixed assembly 4, battery core shell 1 is used to accommodate multiple battery cores, forms battery pack;Battery upper connector 2 and battery lower connector 3 are respectively arranged at both ends of the battery pack, and battery upper connector 2 and battery lower connector 3 are fixedly connected with battery core shell 1;Fixed assembly 4 includes safety tube 401, wire 402, elastic cylindrical pin 403 and battery spacer 404, safety tube 401 is connected to one side of battery upper connector 2, wire 402 is connected to one side of battery core, and wire 402 is used to connect each battery core and external equipment, elastic cylindrical pin 403 is connected to the upper and lower sides of battery upper connector 2 and battery lower connector 3, battery spacer 404 is provided with two, two battery spacers 404 are connected to both ends of the battery pack, battery spacer 404 is used to ensure that the wiring part is greater than 20mm apart from the outer end surface of the battery core, and one end of battery upper connector 2 is connected with plug 5.

[0022] Reference Figure 4 , Figure 5The battery upper joint 2 and the battery lower joint 3 are subjected to hard anodic oxidation treatment, the outer surface of the battery upper joint 2 and the battery lower joint 3 is dark green in color, and the external edges and corners of the battery upper joint 2 and the battery lower joint 3 are subjected to polishing treatment, the battery upper joint 2 is in a circular column structure, a plurality of first tooth-shaped groove rings 201 are arranged at equal intervals at one end of the battery upper joint 2, a semicircular groove is arranged at the other end of the battery upper joint 2, a through hole 202 is arranged in the middle of the battery upper joint 2, one end of the semicircular groove of the battery upper joint 2 is connected to the battery core shell 1, a wire hole 203 is arranged in the battery upper joint 2, a ring groove 204 is arranged at the position corresponding to the wire hole 203 on the outer periphery of the battery upper joint 2, and a fuse tube 401 is connected inside the ring groove 204, the connecting wire enters the hole after winding around the battery upper joint 2, an arc bridge type wire pressing piece 6 is connected above one end of the battery upper joint 2, a wire 402 is fixed in the middle below the arc bridge type wire pressing piece 6, a first pin groove 205 is arranged above and below one end of the battery upper joint 2 close to the first tooth-shaped groove ring 201, and an elastic cylindrical pin 403 is connected inside the first pin groove 205, the battery upper joint 2 subjected to hard anodic oxidation improves the corrosion resistance of the material and ensures good electrical contact performance, the battery separator 404 is connected to both ends of the battery pack to form a sealed structure, preventing external factors such as moisture and dust from causing damage to the inside of the battery pack, and when the current in the battery pack exceeds the set value, the fuse tube 401 will automatically fuse and cut off the circuit.

[0023] Figure 6 , Figure 7 A second tooth-shaped groove ring 301 is arranged at one end of the battery lower joint 3, a second pin groove 302 is arranged above and below one end of the battery lower joint 3 close to the second tooth-shaped groove ring 301, and an elastic cylindrical pin 403 is connected inside the second pin groove 302, the outer side of the elastic cylindrical pin 403 connected inside the battery upper joint 2 and the battery lower joint 3 is coated with adhesive, and after assembly of the elastic cylindrical pin 403, the adhesive coated on the surface can enhance the adhesion with the battery lower joint 3 and prevent loosening.

[0024] Working principle: first, a plurality of battery core in turn arranged in the battery core shell 1, form a battery pack, provide enough power to meet the demand, battery upper connector 2 and battery lower connector 3 are located at the top and bottom of the battery pack, they are as the interface between the battery pack and external device power transmission, battery upper connector 2 through the wire 402 and the positive electrode of the battery core is connected, while the battery lower connector 3 is connected with the negative electrode of the battery core, when the external device is connected to the two connectors of the battery pack through the cable, a complete circuit can be formed, the realization of power transmission, the elastic cylindrical pin 403 is connected to the upper and lower ends of the battery upper connector 2 and the battery lower connector 3, prevent the battery core from displacement or damage during transportation or use, battery spacer 404 is used for filling the battery pack and the wiring part of the two terminal socket, the fuse tube 401 is installed on the battery upper connector 2, which is an overcurrent protection device, protects the battery pack and external device from damage, the fixed assembly 4 ensures the stability and safety of the battery pack.

[0025] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art within the technical range disclosed by the present application, according to the technical scheme and the utility model concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A battery pack fixed assembly structure, comprising a battery cell housing (1), a battery upper connector (2), a battery lower connector (3), and a fixing assembly (4), characterized in that, The battery cell housing (1) is used to accommodate multiple battery cells to form a battery pack; the upper battery connector (2) and the lower battery connector (3) are respectively located at both ends of the battery pack, and the upper battery connector (2) and the lower battery connector (3) are fixedly connected to the battery cell housing (1); the fixing component (4) includes a fuse (401), a wire (402), an elastic cylindrical pin (403) and a battery spacer (404), the fuse (401) is connected to one side of the upper battery connector (2), the wire (402) is connected to one side of the battery cell, and the wire (402) is used to connect each battery cell and external equipment, the elastic cylindrical pin (403) is connected to the upper and lower sides of the upper battery connector (2) and the lower battery connector (3), there are two battery spacers (404), the two battery spacers (404) are connected to both ends of the battery pack, and one end of the upper battery connector (2) is connected to a plug (5).

2. The battery pack fixed assembly structure according to claim 1, characterized in that, Both the upper battery connector (2) and the lower battery connector (3) are treated with hard anodizing. The outer surface of the upper battery connector (2) and the lower battery connector (3) is dark green, and the external edges and burrs of the upper battery connector (2) and the lower battery connector (3) are polished.

3. The battery pack fixed assembly structure according to claim 1, characterized in that, The battery connector (2) has a cylindrical structure. One end of the battery connector (2) is provided with a plurality of first toothed groove rings (201) at equal intervals, and the other end of the battery connector (2) is provided with a semi-circular groove. The middle part of the battery connector (2) is provided with a through circular hole (202), and one end of the semi-circular groove of the battery connector (2) is connected to the battery core shell (1).

4. The battery pack fixed assembly structure according to claim 1, characterized in that, The battery connector (2) has a wire hole (203) inside, and an annular groove (204) is provided on the outer periphery of the battery connector (2) corresponding to the wire hole (203), and a fuse (401) is connected inside the annular groove (204).

5. The battery pack fixed assembly structure according to claim 4, characterized in that, An arc-bridge type pressure plate (6) is connected to one end of the battery connector (2), and a wire (402) is fixed in the middle of the lower part of the arc-bridge type pressure plate (6). The battery connector (2) has a first pin groove (205) at the upper and lower ends near the first toothed groove ring (201), and an elastic cylindrical pin (403) is connected inside the first pin groove (205).

6. The battery pack fixed assembly structure according to claim 1, characterized in that, The lower battery connector (3) has a second toothed groove ring (301) at one end, and the lower battery connector (3) has a second pin groove (302) at the end near the second toothed groove ring (301), and an elastic cylindrical pin (403) is connected inside the second pin groove (302).

7. A battery pack fixed assembly structure according to claim 6, characterized in that, The elastic cylindrical pins (403) that connect the upper battery connector (2) and the lower battery connector (3) are coated with adhesive on their outer sides.

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