Battery bracket for fixing battery module in lithium battery

Abstract

The utility model discloses a battery support for fixing a battery module in a lithium battery, the battery support comprises a fixed frame and limiting angle steel, the limiting angle steel is detachably arranged at an opening part of the fixed frame, an accommodating cavity for fixing the battery module is formed in the fixed frame, a plurality of groups of supporting seats are arranged above the fixed frame, and the supporting seats are arranged on the fixed frame. The supporting bases are fixed to the four corners of the fixing frame respectively, the top end of each supporting base is bent to form a jacking supporting part, and a plurality of heat dissipation holes are formed in the fixing frame. According to the battery support, the battery module is placed in the containing cavity of the fixing frame, the battery module is fixed through the limiting angle steel at the opening of the fixing frame, the battery module in the fixing frame is protected, the problems of shaking, spontaneous combustion and the like in the transportation process of a lithium battery are solved, and compared with a traditional foam fixing mode, the battery support has the advantages of being simple in structure and convenient to use. The battery bracket provided by the utility model is more stable and safer.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery bracket for fixing the battery module inside a lithium battery. Background Technology

[0002] Lithium-ion batteries are primary batteries that use lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Lithium-ion batteries are widely used in various fields due to their numerous advantages, including light weight, small size, high energy density, high voltage, and good safety performance. Because different users have different requirements for lithium-ion battery models, current technology, for ease of production, typically places the battery module inside the lithium-ion battery casing and then directly fills and fixes the battery pack with foam cotton around its perimeter. Since the size of the battery module differs from the size of the battery casing, the foam cotton serves to support and fix the battery pack. However, the existing battery pack fixing method has the following shortcomings:

[0003] 1) Foam cotton is flammable and can easily cause a fire when a short circuit occurs outside the battery pack, posing a safety hazard;

[0004] 2) Filling the battery pack with foam cotton will prevent the battery pack from dissipating heat, causing the battery pack to be in a high-temperature state for a long time, thus affecting the battery pack's lifespan.

[0005] 3) Foam cotton is elastic. During the transportation of the battery, the battery pack will squeeze the foam cotton in the shell, causing the foam cotton to deform. This will cause the battery pack to shake inside the shell, which may lead to loose battery pack wiring. The resulting high internal resistance will cause the wiring terminals to heat up, which may pose a safety hazard of battery spontaneous combustion. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a battery bracket that can securely fix the battery module, prevent the battery module from shaking inside the lithium battery, facilitate heat dissipation of the battery module, extend the service life of the battery module, improve the safety of lithium battery transportation, and prevent the battery pack from spontaneously combusting.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A battery bracket for fixing a battery module inside a lithium battery is disclosed. The battery bracket is built into the lithium battery and includes a fixing frame and a limiting angle steel. An opening is formed on the front side of the fixing frame, and the limiting angle steel is detachably installed in the opening of the fixing frame. An accommodating cavity for fixing the battery module is formed inside the fixing frame. Several sets of support seats are provided on the top of the fixing frame and are respectively fixed at the four corners of the fixing frame. The top of each set of support seats is bent to form a clamping support part. Several heat dissipation holes are provided on the fixing frame and are distributed at intervals between each other.

[0009] Furthermore, the fixed frame has connecting ears extending outward on both sides, and the connecting ears are provided with fixing holes and fixing members that cooperate with the fixing holes. The limiting angle steel has adjusting holes on both sides that cooperate with the fixing members. The limiting angle steel is aligned with the fixing holes on the connecting ears on both sides of the fixed frame through the adjusting holes on both sides and locked and fixed by the fixing members.

[0010] Furthermore, the fixed frame includes a base plate, a rear side plate, a left side plate, and a right side plate, the bottoms of which are fixed to the outer periphery of the base plate.

[0011] Furthermore, the fixed frame includes a top plate, which is located above the bottom plate and symmetrically distributed with the bottom plate. The top plate is fixed to the top of the rear side plate, the left side plate, and the right side plate, and several sets of support seats are respectively fixed at the four corners of the top plate.

[0012] Furthermore, the top of the top plate has a fixing groove for fixing the battery control panel, and the outer periphery of the fixing groove is provided with a plurality of limiting posts, which are fixed to the outer periphery of the fixing groove at intervals.

[0013] Furthermore, the top plate is provided with a first wire harness guide fixing hole and a second wire harness guide fixing hole, which are symmetrically distributed and located on the outside of the fixing groove.

[0014] Furthermore, the top of the left side plate is bent outward to form a left connecting surface, which is provided with a first connecting hole and a first connecting member. The top of the right side plate is bent outward to form a right connecting surface, which is provided with a second connecting hole and a second connecting member. The left and right ends of the top plate are respectively provided with a left mounting hole that mates with the first connecting member and a right mounting hole that mates with the second connecting member. The left end of the top plate is aligned with the first connecting hole on the left connecting surface of the left side plate through the left mounting hole and locked and fixed by the first connecting member. The right end of the top plate is aligned with the second connecting hole on the right connecting surface of the right side plate through the right mounting hole and locked and fixed by the second connecting member.

[0015] Furthermore, left guide support and right guide support are respectively formed on both sides of the bottom of the rear side plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model's battery holder includes a fixed frame and a limiting angle steel. The limiting angle steel is detachably installed at the opening of the fixed frame. The fixed frame has an internal cavity for securing the battery module. Several sets of support seats are located above the fixed frame and are fixed at the four corners of the frame. The top of each support seat is bent to form a tightening support. The fixed frame has several heat dissipation holes. This utility model's battery holder places the battery module within the cavity of the fixed frame and secures it with the limiting angle steel at the opening of the fixed frame, preventing the battery module from slipping out of the cavity. This protects the battery module within the fixed frame, preventing issues such as shaking or spontaneous combustion during lithium battery transportation. Compared to traditional foam securing methods, this utility model's battery holder provides a more stable and safer fixation of the battery module. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the relationship between the battery holder and the lithium battery of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the battery holder of this utility model. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of the battery holder of this utility model. Figure 2 .

[0021] Figure 4 Disassembly of the battery holder of this utility model Figure 1 ;

[0022] Figure 5 Disassembly of the battery holder of this utility model Figure 2 ;

[0023] Figure 6 Disassembly of the battery holder of this utility model Figure 3 ;

[0024] Figure 7 This is a schematic diagram of the fixed frame of this utility model.

[0025] In the diagram: 1. Fixed frame; 11. Opening; 12. Connecting ear; 121. Fixing hole; 13. Base plate; 14. Rear side plate; 141. Left guide support; 142. Right guide support; 143. Left hanging ear; 144. Right hanging ear; 15. Left side plate; 151. First connecting hole; 152. Right side plate; 16. Right connecting surface; 161. Second connecting hole; 162. Top plate; 17. Fixing groove; 171. Limiting post; 172. First wire harness guide fixing hole; 173. Second wire harness guide fixing hole; 174. Left mounting hole; 175. Right mounting hole; 176. Limiting angle steel; 2. Heat dissipation and weight reduction hole; 21. Adjustment hole; 22. Receiving cavity; 3. Support base; 4. Tightening support part; 41. Heat dissipation hole; 5. Lithium battery; 6. Battery cover; 7. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings, which form part of this specification. The principles of the present invention will be illustrated through embodiments, and other aspects, features, and advantages of the present invention will become apparent from this detailed description. In the accompanying drawings, the same or similar parts in different figures are indicated by the same reference numerals.

[0027] like Figures 1-7As shown, Embodiment 1 of this utility model provides a battery bracket for fixing a battery module inside a lithium battery 6. The battery bracket is built into the lithium battery 6. The battery bracket includes a fixing frame 1 and a limiting angle steel 2. An opening 11 is formed on the front side of the fixing frame 1. The limiting angle steel 2 is detachably installed on the opening 11 of the fixing frame 1. An accommodating cavity 3 for fixing the battery module is formed inside the fixing frame 1. Several sets of support seats 4 are provided on the top of the fixing frame 1. The several sets of support seats 4 are fixed at the four corners of the fixing frame 1. The top of each set of support seats 4 is bent to form a tightening support part 41. Several heat dissipation holes 5 are opened on the fixing frame 1 and are distributed at intervals. In a specific implementation, several heat dissipation and weight reduction holes 21 are also opened on the limiting angle steel 2 and are distributed at intervals. The battery bracket of this invention can be built into the lithium battery 6. The battery bracket holds the battery module through the receiving cavity 3 of the fixed frame 1. The battery module is fixed by the limiting angle steel 2 at the opening of the fixed frame 1. The limiting angle steel 2 plays a limiting role, fixing the battery module in the receiving cavity 3 of the fixed frame 1, preventing the battery module from running out or moving out of the receiving cavity 3 of the fixed frame 1. At the same time, it also protects the battery module in the fixed frame 1, preventing the battery module from shaking or spontaneously combusting during the transportation of the lithium battery 6. The multiple sets of support seats 4 on the top of the battery bracket can hold the battery cover 7 on the top of the lithium battery 6. Even if the lithium battery 6 is placed upside down, there is no need to worry about the battery bracket shaking inside the lithium battery 6. This improves the stability and safety of the battery bracket in fixing and supporting the battery module. The setting of several heat dissipation holes 5 is conducive to heat dissipation during the operation of the battery module, which helps to protect the battery module, extend the service life of the battery module, and avoid the problems of heat dissipation and shaking of the battery module that are not conducive to the battery module, such as foam cotton. The battery holder designed in this utility model has a reasonable and compact structure and a simple structure.

[0028] This invention features connecting ears 12 extending outward from both sides of a fixed frame 1. Each connecting ear 12 has a fixing hole 121 that mates with a fixing component. The limiting angle steel 2 has adjusting holes 22 on both sides that mate with the fixing components. The limiting angle steel 2 aligns with the fixing holes 121 on the connecting ears 12 of the fixed frame 1 via the adjusting holes 22 on both sides and is locked in place by the fixing components, thus enabling detachable installation of the limiting angle steel 2 and the fixed frame 1. Specifically, the fixing component can be a fixing screw, and the adjusting hole 22 is an elongated adjusting hole 22, facilitating the adjustment of the fixing component according to the height of different connecting ears 12, thereby improving the flexibility and practicality of fixing the limiting angle steel 2.

[0029] In this embodiment, the fixing frame 1 includes a base plate 13, a rear side plate 14, a left side plate 15, and a right side plate 16. The bottoms of the rear side plate 14, the left side plate 15, and the right side plate 16 are fixed to the outer periphery of the base plate 13. Specifically, the rear side plate 14, the left side plate 15, and the right side plate 16 are all made of a single piece of aluminum sheet. The aluminum sheet is cut, stamped, and bent to form the shapes of the rear side plate 14, the left side plate 15, the right side plate 16, and the base plate 13. The rear side plate 14, the left side plate 15, and the right side plate 16 are welded to the base plate 13 to form an integral fixing frame 1. The rear side plate 14, the left side plate 15, and the right side plate 16 can provide protection for the outer side of the battery module. Several heat dissipation holes 5 are distributed at intervals on the base plate 13, the rear side plate 14, the left side plate 15, and the right side plate 16. The heat dissipation holes 5 can provide heat dissipation channels for the battery module and reduce the weight of the battery bracket.

[0030] The fixing frame 1 of this utility model includes a top plate 17, which is located above and symmetrically distributed with the bottom plate 13. The top plate 17 is fixed to the top of the rear side plate 14, the left side plate 15, and the right side plate 16. Several sets of support seats 4 are respectively fixed at the four corners of the top plate 17. A fixing groove 171 for fixing the battery control panel is formed on the top of the top plate 17. The fixing groove 171 is also located inside the several sets of support seats 4. Specifically, several limiting posts 172 are provided on the outer periphery of the fixing groove 171. The several limiting posts 172 are fixed to the outer periphery of the fixing groove 171 at intervals. The setting of several limiting posts 172 can limit the battery control panel on the fixing groove 171 and prevent the battery control panel from moving. Specifically, this utility model has a first wire harness guide fixing hole 173 and a second wire harness guide fixing hole 174 in the top plate 17. The first wire harness guide fixing hole 173 and the second wire harness guide fixing hole 174 are symmetrically distributed and located on the outer side of the fixing groove 171. The first wire harness guide fixing hole 173 and the second wire harness guide fixing hole 174 facilitate the connection between the battery wire harness on the battery module and the battery control panel, making it easier to connect the battery module and the battery control panel, and also facilitating the routing of the battery wire harness.

[0031] In a specific implementation of this utility model embodiment, the top of the left side plate 15 is bent outward to form a left connecting surface 151, which is provided with a first connecting hole 152 and a first connecting member. The top of the right side plate 16 is bent outward to form a right connecting surface 161, which is provided with a second connecting hole 162 and a second connecting member. The left and right ends of the top plate 17 are respectively provided with a left mounting hole 175 that cooperates with the first connecting member and a right mounting hole 176 that cooperates with the second connecting member. The left end of the top plate 17 is aligned with the first connecting hole 152 on the left connecting surface 151 of the left side plate 15 through the left mounting hole 175 and locked and fixed by the first connecting member. The right end of the top plate 17 is aligned with the second connecting hole 162 on the right connecting surface 161 of the right side plate 16 through the right mounting hole 176 and locked and fixed by the second connecting member. The first and second connectors can be fixed screws. The left mounting hole 175 and the right mounting hole 176 are threaded holes. The top of the left side plate 15 is bent and stamped to form the left connecting surface 151, and the top of the right side plate 16 is bent and stamped to form the right connecting surface 161. The left and right ends of the top plate 17 are connected and fixed to the left connecting surface 151 of the left side plate 15 and the right connecting surface 161 of the right side plate 16 through the first and second connectors, which facilitates the installation and disassembly of the top plate 17 with the left side plate 15 and the right side plate 16, and improves the convenience and efficiency of the installation operation.

[0032] This invention features a left guide support 4141 and a right guide support 4142 extending outward from both sides of the bottom of the rear side panel 14. The left and right guide supports 4141 and 4142 are used in pairs. Their placement allows for more stable fixing of the battery module frame inside the lithium battery 6, improving the stability of the battery holder within the lithium battery 6. A left lifting lug 143 and a right lifting lug 144 extend outward from both sides of the top of the rear side panel 14. These lugs, in conjunction with the top plate 17, facilitate the lifting of the battery holder.

[0033] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of this application. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A battery bracket for fixing a battery module inside a lithium battery, characterized in that: The battery bracket is built into the lithium battery. The battery bracket includes a fixed frame and a limiting angle steel. An opening is formed on the front side of the fixed frame. The limiting angle steel is detachably installed in the opening of the fixed frame. An accommodating cavity for fixing the battery module is formed inside the fixed frame. Several sets of support seats are provided on the top of the fixed frame. The several sets of support seats are fixed at the four corners of the fixed frame. The top of each set of support seats is bent to form a clamping support part. Several heat dissipation holes are opened in the fixed frame and are distributed at intervals between each other.

2. The battery bracket for fixing the internal battery module of a lithium battery according to claim 1, characterized in that: The fixed frame has connecting ears extending outward from both sides. Each connecting ear has a fixing hole and a fixing member that matches the fixing hole. The limiting angle steel has adjusting holes on both sides that match the fixing member. The limiting angle steel is aligned with the fixing holes on the connecting ears on both sides of the fixed frame through the adjusting holes on both sides and is locked and fixed by the fixing member.

3. The battery bracket for fixing the internal battery module of a lithium battery according to claim 1, characterized in that: The fixed frame includes a base plate, a rear side plate, a left side plate, and a right side plate, with the bottom of the rear side plate, left side plate, and right side plate fixed to the outer periphery of the base plate.

4. The battery bracket for fixing the internal battery module of a lithium battery according to claim 3, characterized in that: The fixed frame includes a top plate, which is located above the bottom plate and symmetrically distributed with the bottom plate. The top plate is fixed to the top of the rear side plate, the left side plate, and the right side plate, and several sets of support seats are fixed at the four corners of the top plate.

5. The battery bracket for fixing the internal battery module of a lithium battery according to claim 4, characterized in that: The top of the top plate has a fixing groove for fixing the battery control panel. The outer periphery of the fixing groove is provided with a plurality of limiting posts, which are fixed to the outer periphery of the fixing groove at intervals.

6. The battery bracket for fixing the internal battery module of a lithium battery according to claim 5, characterized in that: The top plate has a first wire harness guide fixing hole and a second wire harness guide fixing hole, which are symmetrically distributed and located on the outside of the fixing groove.

7. The battery bracket for fixing the internal battery module of a lithium battery according to claim 4, characterized in that: The top of the left side plate is bent outward to form a left connecting surface, which has a first connecting hole and a first connecting member. The top of the right side plate is bent outward to form a right connecting surface, which has a second connecting hole and a second connecting member. The left and right ends of the top plate have a left mounting hole that mates with the first connecting member and a right mounting hole that mates with the second connecting member, respectively. The left end of the top plate is aligned with the first connecting hole on the left connecting surface of the left side plate through the left mounting hole and locked in place by the first connecting member. The right end of the top plate is aligned with the second connecting hole on the right connecting surface of the right side plate through the right mounting hole and locked in place by the second connecting member.

8. The battery bracket for fixing the internal battery module of a lithium battery according to claim 3, characterized in that: The two sides of the bottom of the rear side plate extend outward to form a left guide support and a right guide support, respectively.

Images