Car model battery combination structure

Abstract

The utility model discloses a car model battery combination structure, and relates to the technical field of lithium ion batteries. Comprising a composite epoxy resin support, an upper cover plate, a left end plate and a right end plate, the inner bottom of the composite epoxy resin support is bonded with a monomer soft package cell, and a ventilation cavity is arranged in the composite epoxy resin support. According to the car model battery combination structure, the clamping strips and the clamping grooves are matched, so that every two composite epoxy resin brackets can be spliced together, a plurality of soft package batteries can conveniently form a soft package battery module, series-parallel connection with different requirements can be realized, and the composite epoxy resin brackets play a role in isolating the two soft package batteries; meanwhile, the design of the ventilation cavity in the composite epoxy resin bracket utilizes an air convection mode, so that the heat transfer of the battery can be accelerated, the heat can be dissipated more quickly and more thoroughly, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a vehicle model battery combination structure. Background Art

[0002] Polymer lithium-ion soft-pack batteries have been widely used in model toy products in recent years due to their flexible shape and size, fast charging speed, excellent cycle characteristics, high operating voltage, high specific energy, large capacity, and environmental friendliness. Generally, polymer lithium-ion battery packs are composed of multiple small-capacity monomer batteries connected in parallel or in series to form a large-capacity battery pack.

[0003] However, the thermal conductivity of the aluminum-plastic film of the soft-pack battery is small. The heat generated by the soft-pack battery module during operation accumulates quickly and cannot be discharged in time. At the same time, the soft-pack battery is prone to volume expansion and contraction during the charging and discharging process. Each battery cell has no expansion space, posing a safety hazard. Utility Model Content

[0004] The utility model provides a vehicle model battery combination structure to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car model battery combination structure, comprising a composite epoxy resin bracket, an upper cover plate, a left end plate and a right end plate, the inner bottom of the composite epoxy resin bracket is bonded with a single soft-pack battery cell, a ventilation cavity is provided in the composite epoxy resin bracket, a clamping strip is provided at the bottom of the composite epoxy resin bracket, and a clamping groove is provided at the top thereof, and the composite epoxy resin brackets are clamped together by the clamping groove and the clamping strip, a docking convex strip is provided on the bottom surface of the upper cover plate, and is clamped on the composite epoxy resin bracket by the docking convex strip and the clamping groove, right-angle slots are provided at both ends of the composite epoxy resin bracket, right-angle plug blocks are provided on the left end plate and the right end plate, and the left end plate and the right end plate are respectively plugged into the two sides of the composite epoxy resin bracket by the right-angle plug blocks and the right-angle slots, and vents are provided on the left end plate and the right end plate, and the vents correspond to the positions of the ventilation cavities.

[0006] Furthermore, a positive electrode ear is provided on one side of the single soft-pack battery cell, and a negative electrode ear is provided on the other side thereof.

[0007] Furthermore, the left end plate and the right end plate are both provided with a clearance opening, and the positive electrode ear and the negative electrode ear extend outward from the clearance opening.

[0008] Furthermore, the composite epoxy resin bracket is a U-shaped structure, and the left end plate and the right end plate are both epoxy plates.

[0009] Furthermore, the card slot and the card strip are both located at two ends of the composite epoxy resin bracket, and the upper cover plate is an epoxy plate.

[0010] Furthermore, buffer pads are pasted on the composite epoxy resin bracket and the upper cover plate, and the buffer pads are arranged on both side walls of the composite epoxy resin bracket.

[0011] Compared with the prior art, the utility model provides a vehicle model battery combination structure, which has the following

[0012] Beneficial effects:

[0013] The vehicle model battery combination structure enables the composite epoxy resin brackets to be assembled together in pairs through the cooperation between the card strip and the card slot, so that multiple soft-pack batteries can be combined into a soft-pack battery module, and series and parallel connection can be achieved according to different needs. The composite epoxy resin bracket plays a role in isolating the two soft-pack batteries, and also reserves a certain space for the expansion of the soft-pack batteries during use. At the same time, the design of the ventilation cavity in the composite epoxy resin bracket utilizes air convection, which can accelerate the heat transfer of the battery and dissipate heat faster and more thoroughly, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 It is a partial schematic diagram of the utility model.

[0017] In the figure: 1. Composite epoxy resin bracket; 2. Upper cover plate; 3. Left end plate; 4. Right end plate; 5. Single soft-pack battery cell; 6. Ventilation cavity; 7. Card strip; 8. Card slot; 9. Docking convex strip; 10. Right-angle slot; 11. Right-angle plug block; 12. Ventilation port; 13. Positive ear; 14. Negative ear; 15. Make way port; 16. Buffer pad. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 3The utility model discloses a vehicle model battery combination structure, including a composite epoxy resin bracket 1, an upper cover plate 2, a left end plate 3 and a right end plate 4. A monomer soft-pack battery cell 5 is bonded to the inner bottom of the composite epoxy resin bracket 1. A ventilation cavity 6 is provided in the composite epoxy resin bracket 1. A clamping strip 7 is provided at the bottom of the composite epoxy resin bracket 1, and a clamping groove 8 is provided at the top. The composite epoxy resin brackets 1 are clamped together by the clamping groove 8 and the clamping strip 7. The bottom surface of the upper cover plate 2 is provided with a docking convex strip 9, and is clamped on the composite epoxy resin bracket 1 by the docking convex strip 9 and the clamping groove 8. Through the cooperation between the clamping strip 7 and the clamping groove 8, the composite epoxy resin brackets 1 can be assembled together in pairs, which is convenient for forming a plurality of soft-pack batteries into a soft-pack battery module. Series and parallel connection for different needs can be realized. The composite epoxy resin bracket 1 plays a role in isolating the two soft-pack batteries, and also reserves a certain space for the expansion of the soft-pack batteries during use. At the same time, the design of the ventilation cavity 6 in the composite epoxy resin bracket 1 utilizes air convection, which can accelerate the heat transfer of the battery and dissipate heat faster and more thoroughly, thereby improving the heat dissipation efficiency. Right-angle slots 10 are provided at both ends of the composite epoxy resin bracket 1, and right-angle plug blocks 11 are provided on the left end plate 3 and the right end plate 4, and the left end plate 3 and the right end plate 4 are respectively plugged into the two sides of the composite epoxy resin bracket 1 through the right-angle plug blocks 11 and the right-angle slots 10, and vents 12 are provided on the left end plate 3 and the right end plate 4, and the vents 12 correspond to the position of the ventilation cavity 6.

[0020] Specifically, a positive electrode tab 13 is provided on one side of the single soft-pack battery cell 5 , and a negative electrode tab 14 is provided on the other side thereof.

[0021] In this embodiment, since the internal cells of the lithium battery soft pack are made of aluminum foil, and the conductivity of aluminum is low, the internal cells need to be connected by welding ears so that the cells can work normally.

[0022] Specifically, the left end plate 3 and the right end plate 4 are both provided with a clearance opening 15 , and the positive electrode tab 13 and the negative electrode tab 14 extend outward from the clearance opening 15 .

[0023] In this embodiment, the clearance opening 15 is designed to avoid the position, so as to facilitate the welding and use of the positive electrode ear 13 and the negative electrode ear 14 of the single soft-pack battery cell 5.

[0024] Specifically, the composite epoxy resin bracket 1 is a U-shaped structure, and the left end plate 3 and the right end plate 4 are both epoxy plates.

[0025] In this embodiment, the composite epoxy resin bracket 1 is a composite material composed of an epoxy resin matrix and a reinforcing material, and has the characteristics of excellent mechanical properties, chemical stability and heat resistance. Through the cooperation between the card strip 7 and the card slot 8, the composite epoxy resin bracket 1 can be assembled together in pairs, which is convenient for composing a plurality of soft-pack batteries into a soft-pack battery module. The composite epoxy resin bracket 1 plays the role of isolating the two soft-pack batteries, and also reserves a certain space for the expansion of the soft-pack batteries during use. The left end plate 3 and the right end plate 4 mainly play an insulating role.

[0026] Specifically, the card slot 8 and the card strip 7 are both located at two ends of the composite epoxy resin bracket 1, and the upper cover plate 2 is an epoxy plate.

[0027] In this embodiment, through the cooperation between the clamping strips 7 and the clamping grooves 8, the composite epoxy resin brackets 1 can be assembled together in pairs, and the upper cover plate 2 also plays an insulating role.

[0028] Specifically, the composite epoxy resin bracket 1 and the upper cover plate 2 are both pasted with a buffer pad 16 , and the buffer pad 16 is arranged on both side walls of the composite epoxy resin bracket 1 .

[0029] In this embodiment, the buffer pad 16 is a material with appropriate hardness and softness, which can absorb or mitigate the vibration or impact of the soft-pack battery module.

[0030] When in use, through the cooperation between the card strip 7 and the card slot 8, the composite epoxy resin bracket 1 can be assembled together in pairs, which is convenient for forming a plurality of soft-pack batteries into a soft-pack battery module, and then loading them into the battery box, so as to realize series and parallel connection according to different needs. The composite epoxy resin bracket 1 plays the role of isolating the two soft-pack batteries, and also reserves a certain space for the expansion of the soft-pack batteries during use. At the same time, the design of the ventilation cavity 6 in the composite epoxy resin bracket 1 utilizes air convection, which can accelerate the heat transfer of the battery, and can dissipate heat faster and more thoroughly, thereby improving the heat dissipation efficiency.

[0031] In summary, the vehicle model battery combination structure, through the cooperation between the card strip 7 and the card slot 8, enables the composite epoxy resin bracket 1 to be assembled together in pairs, which is convenient for forming a plurality of soft-pack batteries into a soft-pack battery module, and can realize series and parallel connection of different needs. The composite epoxy resin bracket 1 plays the role of isolating the two soft-pack batteries, and also reserves a certain space for the expansion of the soft-pack batteries during use. At the same time, the design of the ventilation cavity 6 in the composite epoxy resin bracket 1 utilizes air convection, which can accelerate the heat transfer of the battery, and can dissipate heat faster and more thoroughly, thereby improving the heat dissipation efficiency.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle model battery assembly structure, comprising a composite epoxy resin bracket (1), an upper cover plate (2), a left end plate (3) and a right end plate (4), characterized in that: A single soft-package battery cell (5) is bonded to the inner bottom of the composite epoxy resin bracket (1); a ventilation cavity (6) is provided in the composite epoxy resin bracket (1); a clamping strip (7) is provided at the bottom of the composite epoxy resin bracket (1); a clamping groove (8) is provided at the top; two composite epoxy resin brackets (1) are clamped together through the clamping groove (8) and the clamping strip (7); a butt joint convex strip (9) is provided on the bottom surface of the upper cover plate (2); and the butt joint convex strip (9) and the clamping groove (8) are clamped to the composite epoxy resin bracket (1). The composite epoxy resin bracket (1) is provided with right-angle slots (10) at both ends of the composite epoxy resin bracket (1), the left end plate (3) and the right end plate (4) are both provided with right-angle plug blocks (11), and the left end plate (3) and the right end plate (4) are respectively plugged into the two sides of the composite epoxy resin bracket (1) through the right-angle plug blocks (11) and the right-angle slots (10), and the left end plate (3) and the right end plate (4) are provided with ventilation holes (12), and the ventilation holes (12) correspond to the positions of the ventilation chambers (6).

2. The vehicle model battery assembly structure according to claim 1, characterized in that: One side of the single soft-package battery cell (5) is provided with a positive electrode ear (13), and the other side thereof is provided with a negative electrode ear (14).

3. The vehicle model battery assembly structure according to claim 2, characterized in that: The left end plate (3) and the right end plate (4) are both provided with a clearance opening (15), and the positive electrode ear (13) and the negative electrode ear (14) extend outward from the clearance opening (15).

4. The vehicle model battery assembly structure according to claim 1, characterized in that: The composite epoxy resin bracket (1) is a U-shaped structure, and the left end plate (3) and the right end plate (4) are both epoxy plates.

5. The vehicle model battery assembly structure according to claim 1, characterized in that: The card slot (8) and the card strip (7) are both located at two ends of the composite epoxy resin bracket (1), and the upper cover plate (2) is an epoxy plate.

6. The vehicle model battery assembly structure according to claim 1, characterized in that: Buffer pads (16) are adhered to both the composite epoxy resin bracket (1) and the upper cover plate (2), and the buffer pads (16) are arranged on both side walls of the composite epoxy resin bracket (1).

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