A scalable modular lithium battery pack structure

Abstract

The utility model relates to an expandable modular lithium battery pack structure, comprising a battery body, a mounting piece and a crescent-shaped fixing piece, wherein the mounting piece is arranged on the lower side of the battery body, the mounting piece is symmetrically fixed to the lower side of the battery body, a gap is arranged between the two mounting pieces, a conductive slot is arranged in the middle part of the gap, a conductive block is arranged in the upper middle part of the battery body, the crescent-shaped fixing piece is rotatably arranged on the side of the battery body, a crescent-shaped protrusion is arranged on the crescent-shaped fixing piece, a mounting plate is arranged on the mounting piece, and a mounting hole is arranged on the mounting plate, and a faster connection is achieved through the clamping action of the mounting piece and the crescent-shaped fixing piece, and at the same time, through the relative position setting of the conductive block and the sealing block, a certain sealing effect is achieved while generating a rebound force to enhance the fixing effect.

Description

Technical Field

[0001] The utility model relates to an expandable modular lithium battery pack structure. Background Art

[0002] With the rapid development of mobile power supplies, electric vehicles and other fields, lithium battery packs, as important energy storage devices, have been continuously improved in terms of weight, capacity, charge and discharge performance, etc. However, in the use of lithium battery packs, multiple battery packs often need to be quickly connected to meet the needs of different scenarios. For example, electric vehicles need to connect multiple battery packs together to improve mileage and performance, and mobile power supplies need to quickly splice multiple battery packs together to increase output power and usage time.

[0003] There are some shortcomings in the existing battery pack connection technology. From the perspective of welding and bolt connection, whether it is a weld or a bolt, when the battery pack is subjected to external forces (such as vibration, impact, etc.), poor contact may occur, affecting battery performance. In addition, these two methods also require a long time to install. Therefore, a modular lithium battery pack structure with good sealing effect and easy installation is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above prior art and provide an expandable modular lithium battery pack structure. Through the clamping action of the mounting piece and the crescent-shaped fixing piece, a faster connection is achieved. At the same time, through the relative position setting of the conductive block and the sealing block, a certain sealing effect is achieved while generating a rebound force to enhance the fixing effect. The following is a specific solution:

[0005] A scalable modular lithium battery pack structure comprises a battery body, a mounting piece and a crescent-shaped fixing piece, wherein two mounting pieces are provided, and two crescent-shaped fixing pieces are provided, wherein the mounting piece is provided on the lower side of the battery body, and the mounting piece is symmetrically fixed to the lower side of the battery body, a notch is provided between the two mounting pieces, a conductive slot is provided in the middle part of the notch, a conductive block is provided in the upper middle part of the battery body, and the conductive block can be inserted into the conductive slot, the crescent-shaped fixing piece is rotatably provided on the side of the battery body, a crescent-shaped protrusion is provided on the crescent-shaped fixing piece, a mounting plate is provided on the mounting piece, and the mounting plate is provided with a mounting hole, and the crescent-shaped protrusion can be snapped into the mounting hole, a connecting rod is also provided on the mounting piece, and an inward crescent-shaped recess is also provided on the crescent-shaped fixing piece, and the connecting rod can move along the crescent-shaped recess.

[0006] In order to facilitate modification and reduce damage to the lithium battery, the mounting plate is bonded to the battery body by an adhesive, and the adhesive is one or more of epoxy resin, cyanoacrylate adhesive and cyanoacrylate adhesive.

[0007] Through the S-shaped setting, the crescent-shaped protrusion can be clamped into the mounting hole more effortlessly under the action of the lever principle, and the structure is more beautiful. The crescent-shaped fixing part consists of a rotating fixing part, a pressing part and a crescent-shaped protrusion. The rotating fixing part is provided with a hole for fixing, the pressing part is an S-shaped structure, the crescent-shaped protrusion is arranged in the middle part of the S-shaped structure, and the crescent-shaped protrusion is provided with a pointed part.

[0008] For the purpose of installation stability, at least two crescent-shaped fixing members are provided on each side of the battery body.

[0009] In order to achieve a better sealing effect, sealing blocks are provided on both sides of the conductive block.

[0010] In order to enhance the connection stability between the battery bodies, the friction between the mounting piece and the crescent-shaped fixing piece is enhanced by increasing the rebound force. The sealing block can be inserted into the notch. The height of the sealing block is greater than the height of the notch. The sealing block is made of rubber.

[0011] Beneficial effects: A modular design is achieved through the combination of the battery body, the mounting parts and the crescent-shaped fixing parts, so that the battery pack can quickly expand capacity or power according to demand, adapt to different usage scenarios, and install faster; the design of the conductive block and the conductive slot makes the electrical connection between the battery body fast and stable, while facilitating quick disconnection, thereby improving operational convenience; the design of the sealing block improves the sealing performance of the battery pack, helps prevent battery leakage and short circuit, and enhances the safety of the battery pack; at the same time, through the relative position setting of the conductive block and the sealing block, a rebound force is generated while having a sealing effect, thereby enhancing the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a single three-dimensional structure of an expandable modular lithium battery pack;

[0013] Figure 2 It is a schematic diagram of the combined three-dimensional structure of an expandable modular lithium battery pack;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of a crescent-shaped fixing member of an expandable modular lithium battery pack;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of a mounting part of an expandable modular lithium battery pack;

[0016] In the figure: 1. battery body, 1-1. conductive slot, 1-2. sealing block, 1-3. notch, 2. mounting piece, 2-1. mounting plate, 2-2. mounting hole, 2-3. connecting rod, 3. crescent-shaped fixing piece, 3-1. crescent-shaped protrusion, 3-1-1. tip, 3-2. crescent-shaped depression, 3-3. rotating fixing part, 3-3-1. hole, 3-4. pressing part. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] In this embodiment:

[0019] Please see Figure 1-4 , an expandable modular lithium battery pack structure, comprising a battery body 1, a mounting member 2 and a crescent-shaped fixing member 3, wherein two mounting members 2 are provided, and two crescent-shaped fixing members 3 are provided. The mounting member 2 is provided at the lower side of the battery body 1, and the mounting member 2 is symmetrically fixed to the lower side of the battery body 1. A notch 1-3 is provided between the two mounting members 2, and a conductive slot 1-1 is provided in the middle part of the notch 1-3. A conductive block is provided in the middle part of the upper side of the battery body 1, and the conductive block can be plugged into the conductive In the slot 1-1, the crescent-shaped fixing part 3 is rotatably arranged on the side of the battery body 1, and a crescent-shaped protrusion 3-1 is provided on the crescent-shaped fixing part 3. A mounting plate 2-1 is provided on the mounting part 2, and a mounting hole 2-2 is provided on the mounting plate 2-1. The crescent-shaped protrusion 3-1 can be snapped into the mounting hole 2-2. A connecting rod 2-3 is also provided on the mounting part 2, and an inward crescent-shaped recess 3-2 is also provided on the crescent-shaped fixing part 3. The connecting rod 2-3 can move along the crescent-shaped recess 3-2.

[0020] In order to facilitate modification and reduce damage to the lithium battery, the mounting plate 2-1 is bonded to the battery body 1 by an adhesive, and the adhesive is one or more of epoxy resin, cyanoacrylate adhesive and cyanoacrylate adhesive.

[0021] Through the S-shaped setting, the crescent-shaped protrusion 3-1 can be more labor-savingly clamped into the mounting hole 2-2 under the action of the lever principle, and the structure is more beautiful. The crescent-shaped fixing part 3 is composed of a rotating fixing part 3-3, a pressing part 3-4 and a crescent-shaped protrusion 3-1. The rotating fixing part 3-3 is provided with a hole 3-3-1 for fixing, the pressing part 3-4 is an S-shaped structure, the crescent-shaped protrusion 3-1 is arranged in the middle of the S-shaped structure, and the crescent-shaped protrusion 3-1 is provided with a tip 3-1-1.

[0022] In order to ensure the stability of installation, at least two crescent-shaped fixing parts 3 are provided on each side of the battery body 1; in order to achieve a better sealing effect, sealing blocks 1-2 are provided on both sides of the conductive block; in order to enhance the connection stability between the battery bodies 1, the friction between the mounting part 2 and the crescent-shaped fixing part 3 is enhanced by increasing the rebound force, and the sealing block 1-2 can be inserted into the notch 1-3, and the height of the sealing block 1-2 is greater than the height of the notch 1-3, and the material of the sealing block 1-2 is rubber.

[0023] The following is a specific implementation method:

[0024] Before installation, clean the mounting surface on the battery body 1 and the surface of the mounting plate 2-1 to ensure that there is no dust or oil so that the adhesive can adhere better; position the mounting plate 2-1 on the lower side of the battery body 1, ensure that the mounting plate 2-1 is aligned with the edge of the battery body 1, and ensure the accuracy of the installation position through the preset marks on the mounting plate 2-1; evenly apply the selected adhesive on the mounting plate 2-1, and select one or more of epoxy resin or cyanoacrylate adhesives according to the specific use environment and requirements; place the glue-coated mounting plate 2-1 at the predetermined position of the battery body 1, and press gently to ensure that the adhesive is in full contact with the surface of the battery body 1. According to the curing time requirement of the adhesive, keep the battery body 1 still for a period of time to allow the adhesive to fully cure; pass the rotating fixing portion 3-3 of the crescent-shaped fixing piece 3 through the reserved hole 3-3-1 on the side of the battery body 1, and fix it in place through the rotating fixing portion 3-3; after installing the 4 crescent-shaped fixing pieces 3, press the pressing portion 3-4 inward to make the tip 3-1-1 of the crescent-shaped protrusion 3-1 snap into the mounting hole 2-2.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An expandable modular lithium battery pack structure, characterized in that: It includes a battery body, a mounting piece and a crescent-shaped fixing piece, wherein two mounting pieces are provided, and two crescent-shaped fixing pieces are provided. The mounting piece is provided on the lower side of the battery body, and the mounting piece is symmetrically fixed to the lower side of the battery body. A notch is provided between the two mounting pieces, and a conductive slot is provided in the middle part of the notch. A conductive block is provided in the middle part of the upper side of the battery body, and the conductive block can be inserted into the conductive slot. The crescent-shaped fixing piece is rotatably provided on the side of the battery body, and a crescent-shaped protrusion is provided on the crescent-shaped fixing piece. A mounting plate is provided on the mounting piece, and the mounting plate is provided with a mounting hole. The crescent-shaped protrusion can be snapped into the mounting hole. A connecting rod is also provided on the mounting piece, and an inward crescent-shaped recess is also provided on the crescent-shaped fixing piece, and the connecting rod can move along the crescent-shaped recess.

2. The expandable modular lithium battery pack structure according to claim 1, characterized in that: The mounting plate is bonded to the battery body by an adhesive, and the adhesive is one or more of epoxy resin, cyanoacrylate adhesive and cyanoacrylate adhesive.

3. The expandable modular lithium battery pack structure according to claim 1, characterized in that: The crescent-shaped fixing part is composed of a rotating fixing part, a pressing part and a crescent-shaped protrusion. The rotating fixing part is provided with a hole for fixing. The pressing part is an S-shaped structure. The crescent-shaped protrusion is arranged in the middle of the S-shaped structure. The crescent-shaped protrusion is provided with a tip.

4. The expandable modular lithium battery pack structure according to claim 1, characterized in that: Each side surface of the battery body is provided with at least two crescent-shaped fixing members.

5. The expandable modular lithium battery pack structure according to claim 1, characterized in that: Sealing blocks are provided on both sides of the conductive block.

6. The expandable modular lithium battery pack structure according to claim 5, characterized in that: The sealing block can be inserted into the notch, the height of the sealing block is greater than the height of the notch, and the sealing block is made of rubber.

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