Lithium battery pack protection structure

Abstract

The utility model relates to lithium battery pack technical field, concretely relates to a lithium battery pack protection structure, including main body, the outside of main body is equipped with the protection shell, one side of main body is equipped with the placement groove, the inside fixedly connected with a plurality of groups of equal interval distribution's baffle of placement groove, the both sides of baffle and located inside placement groove all are fixedly connected with the limit strip, the outside of main body and located inside protection shell is equipped with the buffer layer, the inside fixedly connected with a plurality of groups of equal interval distribution's spring damper of buffer layer, the inside of main body is equipped with the interlayer, the inside of main body and located the outside of interlayer is equipped with the outer layer, the inside of interlayer is equipped with the inner layer, the material of buffer layer is sponge pad, the material of outer layer is aluminium alloy honeycomb board, compare with current lithium battery pack protection structure, the utility model can improve the overall practicality of lithium battery pack protection structure through the design.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a protective structure for lithium battery packs. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Their core function is to store and release electrical energy. The most widely used lithium-ion batteries today are rechargeable secondary batteries. Their working principle is based on the reciprocating migration of lithium ions between the positive and negative electrodes: during charging, lithium ions are released from the positive electrode and inserted into the negative electrode; during discharging, they move in the reverse direction. A lithium-ion battery pack consists of several lithium-ion batteries connected in series and parallel. To better protect the lithium-ion batteries, a protective casing is usually installed on them during use.

[0003] After lithium batteries are installed and fixed, traditional metal casings are prone to deformation upon impact, which can damage the internal lithium batteries. They are ineffective at providing cushioning and shock resistance, and once a collision occurs, it can easily damage the battery pack connection structure or even the internal cell units, causing the battery pack to malfunction and reducing the lifespan of the lithium batteries. Therefore, it is particularly important to improve the existing lithium battery pack protection structure and design a new type of lithium battery pack protection structure to solve the above-mentioned technical defects and improve the overall practicality of the lithium battery pack protection structure. Utility Model Content

[0004] The purpose of this utility model is to provide a lithium battery pack protection structure. This lithium battery pack protection structure can provide multi-layer internal and external buffer protection, which improves practicality and extends service life. At the same time, it reserves space so that battery bulging will not interfere with other adjacent good batteries. The heat insulation plate isolates the heat transfer between batteries, thereby avoiding the situation where the failure of one battery leads to the failure of all batteries. It is convenient to replace the bad battery individually, which improves the overall practicality of the lithium battery pack protection structure and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lithium battery pack protective structure includes a main body, a protective shell on the outside of the main body, a placement groove on one side of the main body, multiple sets of equally spaced partitions fixedly connected inside the placement groove, limit strips fixedly connected on both sides of the partitions inside the placement groove, a buffer layer on the outside of the main body inside the protective shell, multiple sets of equally spaced spring dampers fixedly connected inside the buffer layer, an inner layer inside the main body, an outer layer inside the inner layer, and an inner layer inside the inner layer.

[0007] As a preferred embodiment of this utility model, the material of the buffer layer is a sponge pad, the material of the outer layer is an aluminum alloy honeycomb panel, the material of the interlayer is an aerogel heat insulation layer, and the material of the inner layer is an elastic silicone pad.

[0008] As a preferred embodiment of this utility model, grooves are provided on both sides of the partition and at the top of the limiting strip, and a heat insulation plate is provided inside the partition.

[0009] As a preferred embodiment of this utility model, a first slot is provided on the top of the main body, and a second slot is provided on the top of the protective shell. A baffle is provided inside the first slot, and both the first slot and the second slot are designed to be compatible with the baffle.

[0010] As a preferred embodiment of this utility model, the outer side of the baffle has multiple sets of equally spaced heat dissipation holes, and the interior of the main body, on the side of the partition away from the baffle, has multiple sets of equally spaced fans fixedly connected.

[0011] As a preferred embodiment of this utility model, multiple sets of threaded holes are provided on the outer sides of both the main body and the baffle, and threaded blocks are threadedly connected inside the threaded holes.

[0012] As a preferred embodiment of this utility model, a connecting block is fixedly connected inside the main body and between the fan and the partition, and a plug is fixedly connected to the bottom of the connecting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, through the design of the main body, protective shell, second slot, buffer layer, spring damper, outer layer, interlayer, inner layer, and separator, when the lithium battery pack protective structure is put into use, the protective shell protects the main body, and if it is subjected to external impact, the sponge pad buffer layer first buffers and dissipates one layer of force, and then the multiple sets of spring dampers reduce shock and dissipate force, thereby protecting the stability of the main body. The outer layer of aluminum alloy honeycomb plate ensures the strength of the main body, so that it will not be easily damaged. The aerogel heat insulation interlayer reduces the influence of external temperature on the interior. The elastic silicone pad inner layer provides cushioning for the internal parts when the main body is impacted, avoiding direct impact that could damage the internal parts. The multi-layered buffer protection improves practicality and extends service life.

[0015] 2. In this utility model, through the design of the main body, the first slot, the placement groove, the threaded hole, the threaded block, the protective shell, the second slot, the partition, the limiting strip, the groove, the heat insulation plate, and the baffle, when the lithium battery pack protection structure is put into use, the battery is inserted between every two sets of partitions. The limiting strip limits the height to prevent external impacts from causing battery misalignment. The space reserved in the groove ensures that battery bulging will not interfere with other adjacent good batteries. The heat insulation plate isolates the heat transfer between batteries, thereby avoiding the situation where one battery failure leads to the failure of all batteries, and facilitating the individual replacement of the faulty battery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the side cross-sectional structure of the main body of this utility model.

[0020] In the diagram: 1. Main body; 101. First slot; 102. Placement slot; 103. Threaded hole; 104. Threaded block; 2. Protective shell; 201. Second slot; 202. Buffer layer; 203. Spring damper; 3. Outer layer; 301. Interlayer; 302. Inner layer; 4. Partition; 401. Limiting strip; 402. Groove; 403. Heat insulation plate; 5. Fan; 501. Baffle; 502. Heat dissipation hole; 6. Connecting block; 601. Plug. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A protective structure for a lithium battery pack includes a main body 1, a protective shell 2 on the outer side of the main body 1, a placement groove 102 on one side of the main body 1, multiple sets of equally spaced partitions 4 fixedly connected inside the placement groove 102, limit strips 401 fixedly connected to both sides of the partitions 4 inside the placement groove 102, a buffer layer 202 on the outer side of the main body 1 inside the protective shell 2, multiple sets of equally spaced spring dampers 203 fixedly connected inside the buffer layer 202, a sandwich layer 301 inside the main body 1, an outer layer 3 inside the sandwich layer 301, and an inner layer 302 inside the sandwich layer 301. The buffer layer 202 is made of sponge pad, and the outer layer 3 is made of aluminum alloy honeycomb plate. The material of the interlayer 301 is an aerogel heat insulation layer, and the material of the inner layer 302 is an elastic silicone pad. When the lithium battery pack protective structure is put into use, the protective shell 2 protects the main body 1. If it is subjected to external impact, the sponge pad buffer layer 202 first buffers and dissipates one layer of force, and then the shock is absorbed and the force is dissipated by multiple sets of spring dampers 203, thereby protecting the stability of the main body 1. The outer layer 3 of the aluminum alloy honeycomb plate ensures the strength of the main body 1, so that it will not be easily damaged. The aerogel heat insulation interlayer 301 reduces the influence of external temperature on the interior. The elastic silicone pad inner layer 302 provides cushioning for the internal parts of the main body 1 when it is impacted, avoiding direct impact that could damage the internal parts. Thus, the multi-layered internal and external buffer protection improves practicality and extends service life.

[0025] Furthermore, grooves 402 are provided on both sides of the separator 4 and at the top of the limiting strip 401. A heat insulation plate 403 is provided inside the separator 4. When the lithium battery pack protection structure is put into use, the battery is inserted between every two sets of separators 4. The limiting strip 401 limits the height to prevent external impact from causing battery misalignment. The space reserved in the groove 402 ensures that battery bulging will not interfere with other adjacent good batteries. The heat insulation plate 403 isolates the heat transfer between batteries, thereby avoiding the situation where one battery failure leads to the failure of all batteries, and facilitating the replacement of bad batteries individually.

[0026] The main body 1 has a first slot 101 on its top, and the protective shell 2 has a second slot 201 on its top. The first slot 101 has a baffle 501 inside, and both the first slot 101 and the second slot 201 are designed to fit the baffle 501. The outer side of the baffle 501 has multiple sets of equally spaced heat dissipation holes 502. The inner side of the main body 1, on the side of the partition 4 away from the baffle 501, has multiple sets of equally spaced fans 5. The outer sides of both the main body 1 and the baffle 501 have multiple sets of threaded holes 103, and the inner side of the threaded holes 103 is threaded with threaded blocks 104. When the lithium battery pack protective structure is put into use, the baffle 501 is inserted into the inner side of the first slot 101 through the second slot 201. The threaded holes 103 and the threaded blocks 104 can fix the main body 1 and the baffle 501, and facilitate disassembly and installation, thereby facilitating battery replacement. The main body 1 is then closed to prevent the battery from sliding. When the power is turned on, the fans 5 dissipate the heat inside the main body 1 through the multiple sets of heat dissipation holes 502, thus extending the service life.

[0027] Secondly, a connecting block 6 is fixedly connected inside the main body 1 and between the fan 5 and the partition 4. A plug 601 is fixedly connected to the bottom of the connecting block 6. When the lithium battery pack protection structure is put into use, the connecting block 6 collects the power supply and then transmits the battery power through the plug 601.

[0028] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0029] In this embodiment, the specific implementation scenario is as follows: In actual use, when the lithium battery pack protection structure is put into use, the battery is inserted between every two sets of separators 4. The limiting strip 401 limits the height to prevent external impacts from causing battery misalignment. The space reserved in the groove 402 ensures that battery bulging will not interfere with other adjacent good batteries. The heat insulation plate 403 isolates the heat transfer between batteries, thereby preventing the situation where one battery failure leads to the failure of all batteries, facilitating the replacement of individual faulty batteries. The baffle 501 is inserted into the interior of the first slot 101 through the second slot 201. The main body 1 and the baffle 501 can be fixed by the threaded hole 103 and the threaded block 104, which facilitates disassembly and installation, thus facilitating battery replacement. The main body 1 is then closed to prevent battery slippage. The power is turned on, and the fan 5 dissipates the heat inside the main body 1 through multiple sets of heat dissipation holes 502. The design extends the service life. The connecting block 6 collects the power supply and then transmits the battery power through the plug 601. The protective shell 2 protects the main body 1. If it is subjected to external impact, the sponge pad buffer layer 202 first buffers and dissipates one layer of force, and then the multiple sets of spring dampers 203 absorb shock and dissipate force, thereby protecting the stability of the main body 1. The outer layer 3 of the aluminum alloy honeycomb plate ensures the strength of the main body 1, so that it will not be easily damaged. The aerogel heat insulation layer 301 reduces the impact of external temperature on the interior. The elastic silicone pad inner layer 302 provides buffer for the internal parts of the main body 1 when it is impacted, avoiding direct impact that could damage the internal parts. Thus, the multi-layer buffer protection improves practicality and extends service life. Compared with the existing lithium battery pack protection structure, this utility model can improve the overall practicality of the lithium battery pack protection structure through design.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery pack protection structure, comprising a main body (1), characterized in that: The main body (1) is provided with a protective shell (2) on the outside. A placement groove (102) is provided on one side of the main body (1). Multiple sets of equally spaced partitions (4) are fixedly connected inside the placement groove (102). Limiting strips (401) are fixedly connected on both sides of the partitions (4) and inside the placement groove (102). A buffer layer (202) is provided on the outside of the main body (1) and inside the protective shell (2). Multiple sets of equally spaced spring dampers (203) are fixedly connected inside the buffer layer (202). A sandwich layer (301) is provided inside the main body (1). An outer layer (3) is provided inside the main body (1) and outside the sandwich layer (301). An inner layer (302) is provided inside the sandwich layer (301).

2. The lithium battery pack protection structure according to claim 1, characterized in that: The material of the buffer layer (202) is a sponge pad, the material of the outer layer (3) is an aluminum alloy honeycomb panel, the material of the interlayer (301) is an aerogel heat insulation layer, and the material of the inner layer (302) is an elastic silicone pad.

3. The lithium battery pack protection structure according to claim 2, characterized in that: The partition (4) has grooves (402) on both sides and at the top of the limiting strip (401), and the partition (4) has a heat insulation plate (403) inside.

4. The lithium battery pack protection structure according to claim 3, characterized in that: The top of the main body (1) is provided with a first slot (101), and the top of the protective shell (2) is provided with a second slot (201). The first slot (101) is provided with a baffle (501) inside. The first slot (101) and the second slot (201) are both designed to be compatible with the baffle (501).

5. The lithium battery pack protection structure according to claim 4, characterized in that: Multiple sets of equally spaced heat dissipation holes (502) are provided on the outer side of the baffle (501), and multiple sets of equally spaced fans (5) are fixedly connected inside the main body (1) on the side of the partition (4) away from the baffle (501).

6. The lithium battery pack protection structure according to claim 5, characterized in that: Multiple sets of threaded holes (103) are provided on the outer side of the main body (1) and the baffle (501), and threaded blocks (104) are threadedly connected inside the threaded holes (103).

7. A lithium battery pack protection structure according to claim 6, characterized in that: A connecting block (6) is fixedly connected inside the main body (1) and between the fan (5) and the partition (4), and a plug (601) is fixedly connected to the bottom of the connecting block (6).

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