Heat dissipation synergistic lithium battery tab device

Abstract

The utility model provides a heat dissipation synergistic type lithium battery tab device, which relates to the technical field of lithium batteries and comprises a box body, a lithium battery arranged in the box body, a positive tab and a negative tab arranged at the top of the lithium battery, a mounting plate connected to one side of the box body, and a heat dissipation assembly arranged on the outer sides of the positive tab and the negative tab, the heat dissipation assembly is arranged in the box body and used for reducing the temperature of the positive electrode lug and the negative electrode lug, the heat dissipation assembly comprises heat conduction silica gel, heat dissipation fins and a heat dissipation fan, the fixing assembly is arranged in the box body and used for fixing lithium batteries of different specifications, and the fixing assembly comprises an adjusting groove, a motor and a longitudinal extrusion plate. Through the heat dissipation assembly, the temperature of the positive electrode lug and the negative electrode lug is effectively reduced, the heat dissipation efficiency is improved, through the fixing assembly, the multiple extrusion plates can achieve multi-directional rapid clamping of the lithium battery, and the lithium battery clamping device is compatible with batteries of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically a heat dissipation and efficiency-enhancing lithium battery tab device. Background Technology

[0002] The development of lithium battery tab heat dissipation devices stems from the increasing contradiction between battery internal resistance and temperature rise in high-power scenarios, as well as the new challenges brought about by the popularization of all-tab technology. The industry is gradually overcoming the balance between heat dissipation efficiency and manufacturing feasibility through structural innovation, process optimization and patent layout, while responding to the market's urgent demand for high-performance batteries.

[0003] When lithium batteries are used, the tabs are prone to heat accumulation due to high current density, and the tabs are also prone to deterioration under long-term high temperature environment, reducing the life of the tabs. On the other hand, most existing protective cases are often unable to work stably when lithium batteries are installed because of the size of the lithium batteries. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a heat dissipation-enhancing lithium battery tab device, which effectively reduces the temperature of the positive and negative tabs and improves heat dissipation efficiency through heat dissipation components, and enables multiple extrusion plates to achieve multi-directional and rapid clamping of lithium batteries through fixing components, and is compatible with batteries of different sizes.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A heat dissipation-enhancing lithium battery tab device includes: a housing, a lithium battery disposed inside the housing, a positive tab and a negative tab disposed on the top of the lithium battery, a mounting plate connected to one side of the housing, a heat dissipation component disposed outside the positive tab and the negative tab for reducing the temperature of the positive tab and the negative tab, the heat dissipation component including: thermally conductive silicone, a heat sink and a heat dissipation fan, and a fixing component disposed inside the housing for fixing the lithium batteries of different specifications, the fixing component including: an adjustment groove, a motor and a longitudinal pressing plate.

[0007] Preferably, one end of both the positive and negative electrodes penetrates the housing and protrudes from the upper surface of the housing. Thermally conductive silicone is provided on the outer side of both the positive and negative electrodes. A heat sink is connected to the outer side of the thermally conductive silicone. Multiple grooves are formed on the top of the heat sink. A sealing ring is provided on one side of each of the two heat sinks. A spring groove is formed inside the sealing ring. A helical spring is installed inside the spring groove. A heat dissipation housing is installed on the top of the mounting plate. A cooling fan is installed inside the heat dissipation housing.

[0008] Preferably, the housing has an adjustment groove inside, a motor is installed on one side of the housing, and a rotating rod a is driven and connected to the motor. Both ends of the rotating rod a have threads with opposite directions of rotation. Two threaded blocks a are installed on the outer side of the rotating rod a. The housing has two transverse sliding grooves and two longitudinal sliding grooves inside. The tops of the two threaded blocks a pass through the corresponding transverse sliding grooves and are connected to transverse extrusion plates. A turbine is installed on the outer side of the rotating rod a, and a worm gear is installed on the top of the turbine. Both ends of the worm gear are connected to rotating rods b. The surfaces of the two rotating rods b have threads with opposite directions. Threaded blocks b are installed on the outer side of the two rotating rods b. The tops of the two threaded blocks b pass through the corresponding longitudinal sliding grooves and are connected to longitudinal extrusion plates. A silicone buffer layer is installed on one side of both the two longitudinal extrusion plates and the two transverse extrusion plates.

[0009] The beneficial effects of this utility model are:

[0010] The advantages of this invention are that by utilizing the thermally conductive silicone, heat sink, and cooling fan in the heat dissipation component, heat is quickly conducted through the thermally conductive silicone, the heat dissipation area is increased by the heat sink, and the fan actively cools down, effectively reducing the temperature of the positive and negative tabs and improving the heat dissipation efficiency.

[0011] Secondly, through the adjustment groove, motor and longitudinal extrusion plate in the fixed component, the motor drives the rotating rod a, and then drives the worm gear to rotate through the turbine, so that multiple extrusion plates can achieve multi-directional and rapid clamping of lithium batteries, compatible with batteries of different sizes and the buffer layer prevents mechanical damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front sectional view of the overall structure of this utility model.

[0014] Figure 3 This is a side sectional view of the sealing ring of this utility model.

[0015] Figure 4 This is a schematic diagram of the turntable a structure of this utility model.

[0016] Figure 5 For the present utility model Figure 3 Enlarged view of point A.

[0017] Figures 1-5Components: 1. Housing; 101. Lithium battery; 102. Positive electrode tab; 103. Negative electrode tab; 104. Mounting plate; 2. Thermally conductive silicone; 201. Heat sink; 3. Sealing ring; 301. Spring groove; 302. Helical spring; 4. Heat dissipation housing; 401. Heat dissipation fan; 5. Adjustment groove; 501. Motor; 502. Rotating rod a; 503. Threaded block a; 504. Transverse extrusion plate; 505. Transverse slide groove; 506. Longitudinal slide groove; 6. Turbine; 601. Worm rod; 602. Rotating rod b; 7. Threaded block b; 701. Longitudinal extrusion plate; 702. Silicone buffer layer. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-5 As shown, a heat dissipation-enhancing lithium battery tab device includes a housing 1, inside which a lithium battery 101 is disposed. A positive tab 102 and a negative tab 103 are disposed on the top of the lithium battery 101. A mounting plate 104 is connected to one side of the housing 1. A heat dissipation component is disposed on the outside of the positive tab 102 and the negative tab 103 to reduce their temperature. The heat dissipation component includes: thermally conductive silicone 2, a heat sink 201, and a heat dissipation fan 401. A fixing component is disposed inside the housing 1 to fix lithium batteries 101 of different specifications. The fixing component includes: an adjustment groove 5, a motor 501, and a longitudinal pressing plate 701.

[0021] The thermally conductive silicone 2, heat sink 201, and cooling fan 401 in the heat dissipation component are used to quickly conduct heat through the thermally conductive silicone 2, increase the heat dissipation area by combining the heat sink 201, and actively cool down by the cooling fan 401, thereby effectively reducing the temperature of the positive tab 102 and the negative tab 103 and improving the heat dissipation efficiency.

[0022] Secondly, through the adjustment groove 5, motor 501 and longitudinal extrusion plate 701 in the fixed assembly, motor 501 drives rotating rod a502, and then through turbine 6 drives worm gear 601 to rotate, so that the two longitudinal extrusion plates 701 and the two transverse extrusion plates 504 can achieve multi-directional fast clamping of lithium battery 101, compatible with batteries of different sizes, and the silicone buffer layer 702 prevents mechanical damage.

[0023] The positive electrode 102 and the negative electrode 103 both penetrate the housing 1 at one end and protrude from the upper surface of the housing 1. Thermal conductive silicone 2 is provided on the outside of the positive electrode 102 and the negative electrode 103. Heat sink 201 is connected to the outside of the thermal conductive silicone 2. Multiple grooves are opened on the top of the heat sink 201. A sealing ring 3 is provided on one side of each of the two heat sinks 201. A spring groove 301 is opened inside the sealing ring 3. A helical spring 302 is installed inside the spring groove 301. A heat dissipation housing 4 is installed on the top of the mounting plate 104. A heat dissipation fan 401 is installed inside the heat dissipation housing 4.

[0024] When lithium batteries are used, the tabs are prone to heat accumulation due to high current density, and the tabs are also prone to deterioration under prolonged high temperature environments. When using this device, the heat generated by the positive tab 102 and negative tab 103 during operation is quickly conducted to the heat sink 201 through the thermally conductive silicone 2 wrapped on the outside. The multiple grooves on the surface of the heat sink 201 further increase the heat dissipation area and accelerate the natural convection diffusion of heat to the surrounding air. After the cooling fan 401 inside the heat dissipation box 4 is started, it actively guides the airflow through the gaps between the heat sinks 201 to enhance the forced convection effect, thereby reducing the temperature of the positive tab 102, negative tab 103 and the surrounding area. The spiral spring 302 inside the sealing ring 3 is always compressed inward to ensure that the contact pressure between the thermally conductive silicone 2 and the heat sink 201 is stable, preventing the thermal resistance from increasing and improving the overall heat dissipation efficiency.

[0025] The housing 1 has an adjustment groove 5 inside. A motor 501 is installed on one side of the housing 1. A rotating rod a502 is connected to the side of the motor 501. Both ends of the rotating rod a502 have threads with opposite directions of rotation. Two threaded blocks a503 are installed on the outside of the rotating rod a502. The housing 1 has two transverse sliding grooves 505 and two longitudinal sliding grooves 506 inside. The tops of the two threaded blocks a503 pass through the corresponding transverse sliding grooves 505 and are connected to transverse extrusion plates 504. A turbine 6 is installed on the outside of the rotating rod a502. A worm gear 601 is installed on the top of the turbine 6. Both ends of the worm gear 601 are connected to rotating rods b602. The surfaces of the two rotating rods b602 have threads with opposite directions of rotation. Threaded blocks b7 are installed on the outside of the two rotating rods b602. The tops of the two threaded blocks b7 pass through the corresponding longitudinal sliding grooves 506 and are connected to longitudinal extrusion plates 701. A silicone buffer layer 702 is installed on one side of both longitudinal extrusion plates 701 and two transverse extrusion plates 504.

[0026] Most existing protective cases often fail to function stably when housing lithium batteries due to the size of the batteries. When it's necessary to secure the lithium battery 101, the motor 501 first drives the rotating rod a502 to rotate. Through the threaded engagement between the two threaded blocks a503 and the rotating rod a502, the opposite threads at both ends of the rotating rod a502 drive the two threaded blocks a503 to move synchronously in opposite directions along the transverse slide 505. This causes the transverse pressing plate 504 to laterally clamp or... Simultaneously, the rotating rod a502 transmits power to the rotating rod b602 through the meshing of the turbine 6 and the worm gear 601. The reverse threads on the surface of the rotating rod b602 cause the two threaded blocks b7 to move along the longitudinal slide groove 506, driving the longitudinal extrusion plate 701 to clamp or release the lithium battery 101 longitudinally. The silicone buffer layer 702 on the inner side of the transverse extrusion plate 504 and the longitudinal extrusion plate 701 provides elastic buffering when in contact with the battery, avoiding mechanical damage. Ultimately, this achieves multi-directional fast clamping and compatibility with the fixing requirements of lithium batteries 101 of different sizes.

[0027] Working principle:

[0028] When lithium batteries are used, the tabs are prone to heat accumulation due to high current density, and the tabs are also prone to deterioration under prolonged high temperature environments. When using this device, the heat generated by the positive tab 102 and negative tab 103 during operation is quickly conducted to the heat sink 201 through the thermally conductive silicone 2 wrapped on the outside. The multiple grooves on the surface of the heat sink 201 further increase the heat dissipation area and accelerate the natural convection diffusion of heat to the surrounding air. After the cooling fan 401 inside the heat dissipation box 4 is started, it actively guides the airflow through the gaps between the heat sinks 201 to enhance the forced convection effect, thereby reducing the temperature of the positive tab 102, negative tab 103 and the surrounding area. The spiral spring 302 inside the sealing ring 3 is always compressed inward to ensure that the contact pressure between the thermally conductive silicone 2 and the heat sink 201 is stable, preventing the thermal resistance from increasing and improving the overall heat dissipation efficiency.

[0029] Most existing protective cases often fail to function stably when housing lithium batteries due to the size of the batteries. When it's necessary to secure the lithium battery 101, the motor 501 first drives the rotating rod a502 to rotate. Through the threaded engagement between the two threaded blocks a503 and the rotating rod a502, the opposite threads at both ends of the rotating rod a502 drive the two threaded blocks a503 to move synchronously in opposite directions along the transverse slide 505. This causes the transverse pressing plate 504 to laterally clamp or... Simultaneously, the rotating rod a502 transmits power to the rotating rod b602 through the meshing of the turbine 6 and the worm gear 601. The reverse threads on the surface of the rotating rod b602 cause the two threaded blocks b7 to move along the longitudinal slide groove 506, driving the longitudinal extrusion plate 701 to clamp or release the lithium battery 101 longitudinally. The silicone buffer layer 702 on the inner side of the transverse extrusion plate 504 and the longitudinal extrusion plate 701 provides elastic buffering when in contact with the battery, avoiding mechanical damage. Ultimately, this achieves multi-directional fast clamping and compatibility with the fixing requirements of lithium batteries 101 of different sizes.

[0030] The above provides a detailed description of a heat dissipation-enhancing lithium battery tab device according to the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat dissipation-enhancing lithium battery tab device, characterized in that, include: The box (1) is equipped with a lithium battery (101) inside. The lithium battery (101) is provided with a positive electrode tab (102) and a negative electrode tab (103) on the top. The box (1) is connected to a mounting plate (104) on one side. A heat dissipation assembly disposed on the outside of the positive electrode (102) and the negative electrode (103) is used to reduce the temperature of the positive electrode (102) and the negative electrode (103). The heat dissipation assembly includes: thermally conductive silicone (2), heat sink (201) and heat dissipation fan (401). The fixing components installed inside the housing (1) are used to fix the lithium batteries (101) of different specifications. The fixing components include: adjustment groove (5), motor (501) and longitudinal extrusion plate (701).

2. The heat dissipation-enhancing lithium battery tab device according to claim 1, characterized in that, One end of the positive electrode (102) and the negative electrode (103) both penetrate the housing (1) and protrude from the upper surface of the housing (1). Thermally conductive silicone (2) is provided on the outer side of the positive electrode (102) and the negative electrode (103). A heat sink (201) is connected to the outer side of the thermally conductive silicone (2). Multiple grooves are provided on the top of the heat sink (201).

3. The heat dissipation-enhancing lithium battery tab device according to claim 2, characterized in that, Each of the two heat sinks (201) is provided with a sealing ring (3) on one side. A spring groove (301) is provided inside the sealing ring (3), and a helical spring (302) is installed inside the spring groove (301).

4. The heat dissipation-enhancing lithium battery tab device according to claim 1, characterized in that, The mounting plate (104) is equipped with a heat dissipation box (4) on top, and a heat dissipation fan (401) is installed inside the heat dissipation box (4).

5. A heat dissipation-enhancing lithium battery tab device according to claim 4, characterized in that, The box body (1) has an adjustment groove (5) inside. A motor (501) is provided on one side of the box body (1). A rotating rod a (502) is connected to the side of the motor (501). Both ends of the rotating rod a (502) are provided with threads in opposite directions. Two threaded blocks a (503) are provided on the outside of the rotating rod a (502). Two transverse sliding grooves (505) and two longitudinal sliding grooves (506) are provided inside the box body (1). The tops of the two threaded blocks a (503) pass through the corresponding transverse sliding grooves (505) and are connected to transverse extrusion plates (504).

6. The heat dissipation-enhancing lithium battery tab device according to claim 5, characterized in that, A turbine (6) is provided on the outside of the rotating rod a (502), and a worm gear (601) is provided on the top of the turbine (6). Both ends of the worm gear (601) are connected to rotating rods b (602), and the surfaces of the two rotating rods b (602) are provided with threads in opposite directions.

7. A heat dissipation-enhancing lithium battery tab device according to claim 6, characterized in that, Both of the two rotating rods b (602) are provided with threaded blocks b (7) on their outer sides. The tops of the two threaded blocks b (7) pass through the corresponding longitudinal grooves (506) and are connected to longitudinal extrusion plates (701). Both of the two longitudinal extrusion plates (701) and the two transverse extrusion plates (504) are provided with silicone buffer layers (702) on one side.

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