Built-in lithium ion storage battery pack structure
By designing isolation, heat conduction and heat dissipation mechanisms in the built-in lithium-ion battery pack, the heat accumulation and adhesion problems during use of the battery pack are solved, and more efficient heat dissipation and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202421847876.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The built-in lithium-ion battery pack will generate heat when used, and the heat on the bonded side cannot be discharged in time, resulting in an increase in the use temperature and affecting efficiency. It is easy to bond during long-term use, causing inconvenience to repair.
A built-in lithium-ion battery pack structure is designed, including a container box, an isolation mechanism, a thermal conductivity mechanism and a heat dissipation mechanism. The isolation mechanism is used to adjust the internal space distribution of the container box. The thermal conduction mechanism conducts heat conduction and dissipation through the thermally conductive copper plate and the thermally dissipated aluminum plate. The heat dissipation mechanism uses the motor to drive the fan blades to exchange air to improve the heat dissipation effect.
It effectively improves the heat dissipation effect of the lithium-ion battery pack, avoids the problem of excessive use temperature of the battery pack, extends the service life, and simplifies the maintenance process.
Smart Images
Figure CN222915045U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium-ion battery packs, in particular to a structure of an embedded lithium-ion battery pack. Background Art
[0002] Lithium-ion batteries are rechargeable secondary batteries and are widely used in fields such as portable electronic devices, electric vehicles, and energy storage systems. They are favored mainly because of their high energy density, long cycle life, and low self-discharge rate.
[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: The embedded lithium-ion battery packs are generally fitted and installed in sequence inside a container box. When the battery packs are in use, heat is generated, and the heat on the fitted side cannot be discharged in time, which will cause the operating temperature of the battery packs to rise, affecting the operating efficiency of the battery packs. And during long-term use, the fitted side is prone to adhesion, which brings inconvenience to maintenance. Therefore, an embedded lithium-ion battery pack structure is proposed for the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a structure of an embedded lithium-ion battery pack, which has the advantages of improving the heat dissipation effect of the lithium-ion battery pack and being convenient for the maintenance of the lithium-ion battery pack, and solves the problems that when the battery pack is in use, heat is generated, the heat on the fitted side cannot be discharged in time, which will cause the operating temperature of the battery pack to rise, affecting the operating efficiency of the battery pack, and during long-term use, the fitted side is prone to adhesion, which brings inconvenience to maintenance.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A structure of an embedded lithium-ion battery pack includes a container box. Isolation mechanisms are arranged on both sides inside the container box. Uniformly distributed battery bodies are arranged inside the container box. The isolation mechanisms are located between the battery bodies. A closing plate is arranged on the top of the container box. Heat dissipation mechanisms are arranged on both sides of the bottom of the closing plate. A heat conduction mechanism is arranged on one side of the isolation mechanism.
[0006] The effects achieved by the above components are as follows: By setting up an isolation mechanism to adjust the spatial distribution inside the container box, it is convenient to place battery bodies of different sizes, effectively isolate the battery bodies from each other, improve the versatility of the device, and the isolation mechanism effectively limits battery bodies of different sizes, improving the usage stability of the battery bodies. By setting up a heat conduction mechanism to dissipate heat from the battery bodies, it avoids the overheating of the battery bodies during use inside the container box, which affects the usage efficiency of the battery bodies. By setting up a heat dissipation mechanism to dissipate heat from the heat conduction mechanism inside the container box, it further improves the heat conduction efficiency of the heat conduction mechanism for the battery bodies, thereby enhancing the heat dissipation effect on the battery bodies.
[0007] Preferably, the isolation mechanism includes two isolation plates, both of which are fixedly installed at the bottom of the inner cavity of the container box. A fixing ring is arranged between the isolation plates. A threaded sleeve is fixedly installed at the bottom of the fixing ring. On both sides of the bottom of the threaded sleeve, movable rods are hinged. The other sides of the movable rods are respectively hinged to the isolation plates. A lead screw is rotatably connected to the bottom of the inner cavity of the container box and located between the isolation plates. The top of the lead screw respectively penetrates through the threaded sleeve and the fixing ring and is fixedly installed with a handwheel. The lead screw is in threaded connection with the threaded sleeve.
[0008] The effects achieved by the above components are as follows: By setting up a handwheel to drive the lead screw to rotate, and then the lead screw drives the threaded sleeve to move downward. When the threaded sleeve moves downward, it will drive the movable rods to rotate, and then the movable rods respectively push the isolation plates to move, increasing the distance between the isolation plates and adjusting the size of the space for placing the battery bodies, facilitating the placement of battery bodies of different sizes and separating the battery bodies from each other.
[0009] Preferably, limiting grooves are respectively opened on the relatively close sides of the isolation plates. On both sides of the surface of the fixing ring, limiting rods are fixedly installed. One end of the limiting rod extends into the interior of the limiting groove.
[0010] The effects achieved by the above components are as follows: By setting up the cooperation between the limiting rods and the limiting grooves to limit the fixing ring, it avoids the shaking and offset of the fixing ring when the isolation plates move.
[0011] Preferably, a uniformly distributed first spring is fixedly installed on the side of the isolation plate close to the battery body. A buffer plate is fixedly installed on the side of the first spring close to the battery body. A protective pad is arranged on the side of the buffer plate close to the battery body. The buffer plate abuts against the surface of the battery body.
[0012] The effects achieved by the above components are as follows: By setting up the cooperation between the first spring and the buffer plate to buffer the battery body, it improves the usage safety of the battery body inside the container box, avoids physical impact on the battery body, and improves the protection effect on the surface of the battery body under the action of the protective pad.
[0013] Preferably, the heat conduction mechanism includes a heat conduction tube which penetrates through the isolation plate. A heat conduction copper plate is fixedly installed on one side of the heat conduction tube close to the battery body. A heat conduction silicone grease is arranged on one side of the heat conduction copper plate, and the heat conduction silicone grease is attached to the surface of the battery body. A second spring is fixedly installed on one side of the heat conduction copper plate close to the isolation plate, and the other end of the second spring is fixedly connected to the isolation plate. Heat dissipation aluminum plates are fixedly installed on the relatively close sides of the heat conduction tubes.
[0014] The effects achieved by the above components are as follows: The heat conduction copper plate is provided to conduct the heat generated by the battery body during use. Under the action of the heat conduction silicone grease, the adhesion between the heat conduction copper plate and the battery body is improved, the thermal resistance is reduced, and the heat conduction efficiency is increased. The heat conduction copper plate conducts the heat to the heat dissipation aluminum plate through the heat conduction tube, and the heat dissipation aluminum plate dissipates the heat into the air inside the container box, playing a role in dissipating heat from the battery body. Under the action of the second spring, the heat conduction copper plate is pressurized, so that the heat conduction silicone grease is more closely attached to the surface of the battery body.
[0015] Preferably, the heat dissipation mechanism includes a cylinder body. Heat dissipation slots are opened on both sides of the top of the closed plate, and the cylinder body is communicated with the heat dissipation slots. An installation ring is fixedly installed inside the cylinder body, and a motor is fixedly installed on the inner side of the installation ring. Two fan blades are fixedly installed at the output end of the motor. Uniformly distributed air inlets are opened at the bottom of the container box, and the air inlets are located between the isolation plates.
[0016] The effects achieved by the above components are as follows: The installation ring is provided to install and fix the motor, improving the output stability of the motor. Under the action of the motor, the fan blades are driven to rotate. The fan blades discharge the air inside the container box through the heat dissipation slots, and the external air enters the inside of the container box through the air inlets, enabling air exchange inside the container box, playing a role in dissipating heat from the inside of the container box, and further improving the heat dissipation effect on the battery body.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] The utility model adjusts the spatial distribution inside the container box by setting an isolation mechanism, which facilitates the placement of battery bodies of different sizes, effectively isolates the battery bodies from each other, improves the versatility of the device, and the isolation mechanism effectively limits battery bodies of different sizes, improving the use stability of the battery bodies. By setting a heat conduction mechanism to dissipate heat from the battery bodies, it avoids overheating of the battery bodies during use inside the container box, which affects the use efficiency of the battery bodies. By setting a heat dissipation mechanism to dissipate heat from the heat conduction mechanism inside the container box, the heat conduction efficiency of the heat conduction mechanism for the battery bodies is improved, thereby enhancing the heat dissipation effect on the battery bodies. At the same time, it solves the problems that the battery pack generates heat during use, the heat on the fitting surface cannot be discharged in time, which will cause the use temperature of the battery pack to rise, affecting the use efficiency of the battery pack, and during long-term use, the fitting surface is prone to adhesion, which brings inconvenience to maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a three-dimensional structure diagram of the structure of the utility model;
[0020] Figure 2 is a schematic structural diagram of the isolation mechanism of the utility model;
[0021] Figure 3 is a schematic partial structural diagram of the isolation mechanism of the utility model;
[0022] Figure 4 is a schematic structural diagram of the heat conduction mechanism of the utility model;
[0023] Figure 5 is a schematic structural diagram of the heat dissipation mechanism of the utility model.
[0024] In the figure: 1, container box; 2, isolation mechanism; 201, isolation plate; 202, first spring; 203, buffer plate; 204, protective pad; 205, fixed ring; 206, limiting rod; 207, threaded sleeve; 208, movable rod; 209, lead screw; 210, hand wheel; 3, heat conduction mechanism; 301, heat conduction tube; 302, heat conduction copper plate; 303, heat conduction silicone grease; 304, second spring; 305, heat dissipation aluminum plate; 4, heat dissipation mechanism; 401, cylinder body; 402, motor; 403, mounting ring; 404, fan blade; 5, battery body; 6, closing plate; 7, heat dissipation groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] Please refer to Figures 1-5 , a structure of an in-built lithium-ion battery pack, which includes a container box 1. Isolation mechanisms 2 are arranged on both sides inside the container box 1. Uniformly distributed battery bodies 5 are arranged inside the container box 1. The isolation mechanisms 2 are located between the battery bodies 5. A closing plate 6 is arranged on the top of the container box 1. Heat dissipation mechanisms 4 are arranged on both sides of the bottom of the closing plate 6. A heat conduction mechanism 3 is arranged on one side of the isolation mechanism 2.
[0027] Specifically, the isolation mechanism 2 includes two isolation plates 201. Both of the two isolation plates 201 are fixedly installed at the bottom of the inner cavity of the container box 1. A fixing ring 205 is arranged between the isolation plates 201. A threaded sleeve 207 is fixedly installed at the bottom of the fixing ring 205. Moving rods 208 are hinged to both sides of the bottom of the threaded sleeve 207. The other sides of the moving rods 208 are respectively hinged to the isolation plates 201. A lead screw 209 is rotatably connected to the bottom of the inner cavity of the container box 1 and located between the isolation plates 201. The top of the lead screw 209 respectively penetrates through the threaded sleeve 207 and the fixing ring 205 and is fixedly installed with a handwheel 210. The lead screw 209 is in threaded connection with the threaded sleeve 207.
[0028] The handwheel 210 is used to drive the lead screw 209 to rotate. Then, the lead screw 209 drives the threaded sleeve 207 to move downward. When the threaded sleeve 207 moves downward, it will drive the moving rods 208 to rotate. Then, the moving rods 208 respectively push the isolation plates 201 to move, so that the distance between the isolation plates 201 increases, adjusting the space size for placing the battery bodies 5, facilitating the placement of battery bodies 5 of different sizes, and isolating and separating the battery bodies 5.
[0029] Specifically, limiting grooves are respectively opened on the relatively close sides of the isolation plates 201. Limiting rods 206 are fixedly installed on both sides of the surface of the fixing ring 205. One ends of the limiting rods 206 extend into the limiting grooves.
[0030] The cooperation between the limiting rods 206 and the limiting grooves is used to limit the fixing ring 205, avoiding the shaking and offset of the fixing ring 205 when the isolation plates 201 move.
[0031] Specifically, a uniformly distributed first spring 202 is fixedly installed on one side of the partition board 201 close to the battery body 5. A buffer board 203 is fixedly installed on the side of the first spring 202 close to the battery body 5. A protective pad 204 is arranged on the side of the buffer board 203 close to the battery body 5, and the buffer board 203 abuts against the surface of the battery body 5.
[0032] The first spring 202 and the buffer board 203 cooperate with each other to buffer the battery body 5, improve the use safety of the battery body 5 inside the container box 1, avoid physical impact on the battery body 5, and improve the protection effect on the surface of the battery body 5 under the action of the protective pad 204.
[0033] Specifically, the heat conduction mechanism 3 includes a heat conduction pipe 301. The heat conduction pipe 301 penetrates through the partition board 201. A heat conduction copper plate 302 is fixedly installed on the side of the heat conduction pipe 301 close to the battery body 5. A heat conduction silicone grease 303 is arranged on one side of the heat conduction copper plate 302, and the heat conduction silicone grease 303 is attached to the surface of the battery body 5. A second spring 304 is fixedly installed on the side of the heat conduction copper plate 302 close to the partition board 201, and the other end of the second spring 304 is fixedly connected to the partition board 201. Heat dissipation aluminum plates 305 are fixedly installed on the relatively close sides of the heat conduction pipes 301.
[0034] The heat conduction copper plate 302 is used to conduct out the heat generated by the battery body 5 during use. Under the action of the heat conduction silicone grease 303, the adhesion between the heat conduction copper plate 302 and the battery body 5 is improved, the thermal resistance is reduced, and the heat conduction efficiency is improved. The heat conduction copper plate 302 conducts the heat to the heat dissipation aluminum plate 305 through the heat conduction pipe 301, and the heat dissipation aluminum plate 305 dissipates the heat into the air inside the container box 1, playing a role in dissipating heat from the battery body 5. Under the action of the second spring 304, the heat conduction copper plate 302 is pressurized, so that the heat conduction silicone grease 303 is more closely attached to the surface of the battery body 5.
[0035] Specifically, the heat dissipation mechanism 4 includes a cylinder body 401. Heat dissipation grooves 7 are opened on both sides of the top of the closed plate 6. The cylinder body 401 is communicated with the heat dissipation grooves 7. An installation ring 403 is fixedly installed inside the cylinder body 401. A motor 402 is fixedly installed on the inner side of the installation ring 403. Two fan blades 404 are fixedly installed at the output end of the motor 402. Air inlets are uniformly distributed on the bottom of the container box 1, and the air inlets are located between the partition boards 201.
[0036] The installation ring 403 is used to install and fix the motor 402, improve the output stability of the motor 402. Under the action of the motor 402, the fan blades 404 are driven to rotate. The fan blades 404 discharge the air inside the container box 1 through the heat dissipation grooves 7, and the external air enters the inside of the container box 1 through the air inlets, so that air exchange is realized inside the container box 1, playing a role in dissipating heat inside the container box 1, and further improving the heat dissipation effect on the battery body 5.
[0037] During use, the handwheel 210 drives the lead screw 209 to rotate. Further, the lead screw 209 drives the threaded sleeve 207 to move downward. When the threaded sleeve 207 moves downward, it will drive the movable rod 208 to rotate. Further, the movable rod 208 respectively pushes the partition plate 201 to move, so that the distance between the partition plates 201 increases, adjusting the space size for placing the battery body 5, facilitating the placement of battery bodies 5 of different sizes, and isolating and separating the battery bodies 5.
[0038] The heat-conducting copper plate 302 conducts out the heat generated by the battery body 5 during use. Under the action of the heat-conducting silicone grease 303, the adhesion between the heat-conducting copper plate 302 and the battery body 5 is improved, the thermal resistance is reduced, and the heat conduction efficiency is improved. The heat-conducting copper plate 302 conducts the heat to the heat-dissipating aluminum plate 305 through the heat-conducting pipe 301. The heat-dissipating aluminum plate 305 dissipates the heat into the air inside the container box 1, playing a role in dissipating heat from the battery body 5. Under the action of the second spring 304, the heat-conducting copper plate 302 is pressurized, so that the heat-conducting silicone grease 303 fits more closely to the surface of the battery body 5.
[0039] Under the action of the motor 402, the fan blade 404 is driven to rotate. The fan blade 404 discharges the air inside the container box 1 through the heat-dissipating slots 7, and the external air enters the inside of the container box 1 through the air inlet, enabling air exchange inside the container box 1, playing a role in dissipating heat from the inside of the container box 1, and further improving the heat dissipation effect on the battery body 5.
[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A built-in lithium-ion battery pack structure, comprising a container box (1), characterized in that: Isolation mechanisms (2) are provided on both sides of the interior of the container box (1), evenly distributed battery bodies (5) are provided inside the container box (1), the isolation mechanism (2) is located between the battery bodies (5), a closing plate (6) is provided on the top of the container box (1), heat dissipation mechanisms (4) are provided on both sides of the bottom of the closing plate (6), and a heat conduction mechanism (3) is provided on one side of the isolation mechanism (2).
2. The internal lithium-ion battery pack structure according to claim 1, characterized in that: The isolation mechanism (2) comprises two isolation plates (201), both of which are fixedly mounted at the bottom of the inner cavity of the container box (1), a fixing ring (205) is arranged between the isolation plates (201), a threaded sleeve (207) is fixedly mounted at the bottom of the fixing ring (205), movable rods (208) are hinged on both sides of the bottom of the threaded sleeve (207), and the other sides of the movable rods (208) are respectively hinged to the isolation plates (201), a screw rod (209) is connected to the bearing at the bottom of the inner cavity of the container box (1) and between the isolation plates (201), the top of the screw rod (209) respectively passes through the threaded sleeve (207) and the fixing ring (205) and is fixedly mounted with a hand wheel (210), and the screw rod (209) is threadedly connected to the threaded sleeve (207).
3. The internal lithium-ion battery pack structure according to claim 2, characterized in that: The relatively close sides of the isolation plates (201) are provided with limiting grooves, and limiting rods (206) are fixedly installed on both sides of the surface of the fixing ring (205), and one end of the limiting rod (206) extends to the inside of the limiting groove.
4. The internal lithium-ion battery pack structure according to claim 2, characterized in that: A first spring (202) which is evenly distributed is fixedly mounted on one side of the isolation plate (201) close to the battery body (5); a buffer plate (203) is fixedly mounted on one side of the first spring (202) close to the battery body (5); a protective pad (204) is arranged on one side of the buffer plate (203) close to the battery body (5); and the buffer plate (203) abuts against the surface of the battery body (5).
5. The internal lithium-ion battery pack structure according to claim 1, characterized in that: The heat conduction mechanism (3) comprises a heat conduction pipe (301), the heat conduction pipe (301) penetrates the isolation plate (201), a heat conduction copper plate (302) is fixedly mounted on the side of the heat conduction pipe (301) close to the battery body (5), a heat conduction silicone grease (303) is arranged on one side of the heat conduction copper plate (302), the heat conduction silicone grease (303) is in contact with the surface of the battery body (5), a second spring (304) is fixedly mounted on the side of the heat conduction copper plate (302) close to the isolation plate (201), the other end of the second spring (304) is fixedly connected to the isolation plate (201), and a heat dissipation aluminum plate (305) is fixedly mounted on the relatively close side of the heat conduction pipe (301).
6. The internal lithium-ion battery pack structure according to claim 1, characterized in that: The heat dissipation mechanism (4) comprises a cylinder (401), heat dissipation grooves (7) are provided on both sides of the top of the closing plate (6), the cylinder (401) is connected to the heat dissipation grooves (7), a mounting ring (403) is fixedly installed inside the cylinder (401), a motor (402) is fixedly installed inside the mounting ring (403), two fan blades (404) are fixedly installed at the output end of the motor (402), and evenly distributed air inlets are provided at the bottom of the container box (1), and the air inlets are located between the isolation plates (201).