CN216530670U

CN216530670U - Protection device for lithium battery charging

Info

Publication number: CN216530670U
Application number: CN202123304942.3U
Authority: CN
Inventors: 吴预伟; 李喜爱
Original assignee: Nanjing Kesaien Electronic Technology Co ltd
Current assignee: Nanjing Kesaien Electronic Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-13
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a protection device for lithium battery charging, which comprises a charger body, wherein the left side of the charger body is movably connected with a heat dissipation box, the rear side of the inner cavity of the heat dissipation box is fixedly connected with a fixed support, two sides of the inner cavity of the fixed support are fixedly connected with fans through supports, and the periphery of the inner cavity of the charger body is provided with cooling fins. The heat dissipation box and the fixing support are arranged for supporting the fan, the heat conduction plate is arranged for matching with the threaded hole to fix the electronic element, and meanwhile, heat generated by the electronic element on the top of the heat conduction plate is transferred to the heat dissipation plate through the heat conduction plate, so that the problem that the electronic element in the charger easily generates heat in the process of charging the lithium battery, most of the conventional chargers are poor in heat dissipation effect, excessive heat accumulation is easily caused, the electronic element is damaged and short circuit is caused, and the lithium battery is further damaged is solved.

Description

Protection device for lithium battery charging

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a protection device for lithium battery charging.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as anode and cathode materials and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment for processing, storing and using due to the very active chemical characteristics of the lithium metal, and becomes a mainstream along with the development of scientific technology.

At the in-process that charges to the lithium cell, the inside electronic component of charger easily produces the heat, and current most charger radiating effect is relatively poor, leads to its inside high temperature, and then leads to the unable normal function of electronic component, appears the condition of short circuit even, leads to the lithium cell to take place to damage easily, provides a protection device for lithium cell charging for this and solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lithium battery charging protection device which has the advantage of good heat dissipation effect and solves the problems that electronic elements in a charger easily generate heat in the process of charging a lithium battery, most of the conventional chargers have poor heat dissipation effect, heat accumulation is easily excessive, the electronic elements are damaged and short-circuited, and the lithium battery is further damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a protection device for lithium battery charging, includes charger body, charger body's left side swing joint has the heat dissipation box, the rear side fixedly connected with fixed bolster of heat dissipation box inner chamber, the both sides of fixed bolster inner chamber all are through support fixedly connected with fan, all be provided with the fin around the charger body inner chamber, one side fixedly connected with heat-conducting plate of charger body inner chamber is kept away from to the fin, charger body's rear end fixedly connected with fixed plate, the inner chamber of fixed plate is provided with the exhaust groove.

Preferably, threaded holes are formed in the periphery of the bottom of the inner cavity of the heat conduction plate and matched with the heat conduction plate.

Preferably, the front side swing joint of heat dissipation box inner chamber has the dust screen, the heat dissipation box is run through at the top of dust screen, the logical groove of using with the dust screen cooperation is seted up in the front of heat dissipation box.

Preferably, the positive both sides of charger body have all been seted up the spacing groove, the equal fixedly connected with stopper in both sides at the heat dissipation box back, the rear side of stopper extends to the inner chamber of spacing groove, and with the inner chamber swing joint of spacing groove.

Preferably, the equal fixedly connected with of both sides of heat dissipation box top front end is spacing box, the inner chamber swing joint of spacing box has spacing post, the front end of spacing post runs through to the outside of spacing box, and laminates with the top of dust screen.

Preferably, the rear end of the limiting column is fixedly connected with a movable plate, the top of the movable plate penetrates through the outside of the limiting box, the rear side of the movable plate is fixedly connected with a spring, and the rear end of the spring is fixedly connected with the inner wall of the limiting box.

Preferably, the equal fixedly connected with fixed block in front end of charger body both sides, the rear end of heat dissipation box both sides all has the connecting rod through pivot swing joint, the one end that the heat dissipation box was kept away from to the connecting rod extends to the inner chamber of fixed block, and with the inner chamber swing joint of fixed block.

Preferably, one end of one side of the connecting rod, which is located in the inner cavity of the fixing block, is provided with a positioning hole, one side of the fixing block is movably connected with a threaded rod, and one end of the threaded rod penetrates through the fixing block and extends to the inner cavity of the positioning hole and is movably connected with the inner cavity of the positioning hole.

Preferably, the surface of the threaded rod, which is located at one end of the inner cavity of the positioning hole, is connected with the inner cavity of the fixing block, and the end, which is far away from the fixing block, of the threaded rod is fixedly connected with the turntable.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model is used for supporting the fan by arranging the heat dissipation box and the fixed bracket, and by arranging the heat conduction plate, is used for fixing the electronic element in cooperation with the threaded hole, and simultaneously, the heat generated by the electronic element on the top of the heat conducting plate is transferred to the radiating fin through the heat conducting plate, the heat transferred by the radiating fins and the heat conducting plate is output to the outside of the charger body through the air exhaust groove by the fan, thereby preventing the electronic elements in the inner cavity of the charger body from being damaged and short-circuited due to excessive heat generated by the electronic elements, thereby causing the damage of the lithium battery in the charging process and solving the problems that in the charging process of the lithium battery, the electronic component inside the charger easily produces the heat, and current most charger radiating effect is relatively poor, causes the heat to pile up too much easily, appears the condition of electronic component damage and short circuit, and then leads to the lithium cell to take place the problem of damaging.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a charger body according to the present invention;

FIG. 3 is a schematic perspective view of a fixing plate according to the present invention;

FIG. 4 is a schematic cross-sectional view of the heat dissipating box of the present invention;

FIG. 5 is an exploded view of the connecting rod and the fixing block of the present invention;

fig. 6 is a schematic cross-sectional structure view of the spacing box of the present invention.

In the figure: 1. a charger body; 2. a heat dissipation box; 3. fixing a bracket; 4. a fan; 5. a heat sink; 6. a heat conducting plate; 7. a fixing plate; 8. an exhaust duct; 9. a threaded hole; 10. a dust screen; 11. a limiting groove; 12. a limiting block; 13. a limiting box; 14. a limiting column; 15. a movable plate; 16. a spring; 17. a connecting rod; 18. a fixed block; 19. positioning holes; 20. a threaded rod; 21. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a protection device for lithium battery charging comprises a charger body 1, a heat dissipation box 2 movably connected to the left side of the charger body 1, a fixing bracket 3 fixedly connected to the rear side of the inner cavity of the heat dissipation box 2, fans 4 fixedly connected to both sides of the inner cavity of the fixing bracket 3 through the bracket, heat dissipation fins 5 disposed around the inner cavity of the charger body 1, a heat conduction plate 6 fixedly connected to one side of the heat dissipation fins 5 away from the inner cavity of the charger body 1, a fixing plate 7 fixedly connected to the rear end of the charger body 1, an exhaust groove 8 disposed in the inner cavity of the fixing plate 7, a heat dissipation box 2 and the fixing bracket 3 for supporting the fans 4, a heat conduction plate 6 for fixing an electronic component in cooperation with a threaded hole 9, and heat generated by the electronic component at the top of the heat conduction plate 6 transmitted to the heat dissipation fins 5 through the heat conduction plate 6, and the heat of 5 fin and 6 heat-conducting plates of heat-conducting plate through fan 4 exports the outside to charger body 1 through exhaust duct 8, prevent that the heat that the electronic component of charger body 1 inner chamber produced is too much, lead to the electronic component to take place the condition of damage and short circuit, and then lead to the lithium cell to take place to damage at the in-process that charges, the in-process of charging to the lithium cell has been solved, the inside electronic component of charger easily produces the heat, current most charger radiating effect is relatively poor, cause the heat to pile up too much easily, the condition of electronic component damage and short circuit appears, and then lead to the lithium cell to take place the problem of damage.

Specifically, threaded holes 9 are all opened around the bottom of the inner cavity of the heat conduction plate 6, and are matched with the heat conduction plate 6, and the threaded holes 9 are arranged for being matched with the heat conduction plate 6 to fix the electronic element.

Specifically, the front side swing joint of 2 inner chambers of heat dissipation box has dust screen 10, and heat dissipation box 2 is run through at the top of dust screen 10, and the logical groove of using with the cooperation of dust screen 10 is seted up in the front of heat dissipation box 2, through setting up dust screen 10 for filter the dust in the outside air.

Specifically, the spacing groove 11 has all been seted up to the positive both sides of charger body 1, the equal fixedly connected with stopper 12 in both sides at the heat dissipation box 2 back, the rear side of stopper 12 extends to the inner chamber of spacing groove 11, and with the inner chamber swing joint of spacing groove 11, through setting up spacing groove 11 and stopper 12 for connect charger body 1 and heat dissipation box 2 fixedly, be convenient for simultaneously wash the dismantlement of heat dissipation box 2, avoid the dust too much, lead to the insufficient radiating effect of fan 4 wind-force poor.

Specifically, the equal fixedly connected with in both sides of 2 top front ends of heat dissipation box 13, the inner chamber swing joint of spacing box 13 has spacing post 14, and the front end of spacing post 14 runs through to the outside of spacing box 13, and laminates with the top of dust screen 10, through setting up spacing post 14 and spacing box 13 for spacing to dust screen 10, prevent that dust screen 10 from taking place to dislocate because of the influence of external force, be convenient for simultaneously dismantle the washing and change to dust screen 10.

Specifically, the rear end of the limiting column 14 is fixedly connected with a movable plate 15, the top of the movable plate 15 penetrates through the outside of the limiting box 13, the rear side of the movable plate 15 is fixedly connected with a spring 16, the rear end of the spring 16 is fixedly connected with the inner wall of the limiting box 13, and the reset elastic force generated by the spring 16 pushes the movable plate 15 and the limiting column 14 to limit the dust screen 10 by arranging the spring 16.

Specifically, the equal fixedly connected with fixed block 18 in front end of charger body 1 both sides, the rear end of 2 both sides of heat dissipation box all has connecting rod 17 through pivot swing joint, and connecting rod 17 keeps away from the inner chamber that the one end of heat dissipation box 2 extended to fixed block 18, and with the inner chamber swing joint of fixed block 18.

Specifically, one side of the connecting rod 17 and the end located in the inner cavity of the fixing block 18 are provided with a positioning hole 19, one side of the fixing block 18 is movably connected with a threaded rod 20, one end of the threaded rod 20 penetrates through the fixing block 18 and extends to the inner cavity of the positioning hole 19, and is movably connected with the inner cavity of the positioning hole 19, through the positioning hole 19 and the threaded rod 20, the connecting rod 17 is limited by the fixing block 18 in a matched mode, and then the heat dissipation box 2 is limited through the connecting rod 17.

Specifically, the surface of the threaded rod 20 located at one end of the inner cavity of the positioning hole 19 is connected with the inner cavity of the fixing block 18, and the end, far away from the fixing block 18, of the threaded rod 20 is fixedly connected with a turntable 21 and used for driving the threaded rod 20 to rotate through the turntable 21.

When the dust-proof screen is used, firstly, the limiting block 12 is inserted into the inner cavity of the limiting groove 11, then one end of the connecting rod 17 is rotated to be inserted into the inner cavity of the fixing block 18, the rotating disc 21 is rotated, the rotating disc 21 drives the threaded rod 20, the rear end of the threaded rod 20 is inserted into the inner cavity of the positioning hole 19 by matching with the fixing block 18 to complete the connection of the heat dissipation box 2 and the charger body 1, in the using process, heat generated by an electronic element at the top of the heat conduction plate 6 is transmitted to the heat dissipation sheet 5 through the heat conduction plate 6, the fan 4 is started through an external controller, the fan 4 outputs external air to the inner cavity of the charger body 1 through the through groove on the front surface of the heat dissipation box 2, and outputs the heat of the heat dissipation sheet 5 and the heat conduction plate 6 to the outside of the charger body 1 through the air exhaust groove 8, when dust on the surface of the dust-proof screen 10 is excessive after long-term use, the movable plate 15 is pulled to displace towards the inner cavity of the limiting box 13, the limiting column 14 and the spring 16 are driven by the movable plate 15 to displace, the spring 16 atress takes place to deform, make spacing post 14 break away from the top of dust screen 10, upwards take out dust screen 10, alright wash and change dust screen 10 this moment, otherwise above step alright accomplish the installation, solved and charging the in-process to the lithium cell, the inside electronic component of charger easily produces the heat, current most charger radiating effect is relatively poor, it piles up too much to cause the heat easily, the condition of electronic component damage and short circuit appears, and then lead to the lithium cell to take place the problem of damage.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

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

Claims

1. The utility model provides a protection device for lithium battery charging, includes charger body (1), its characterized in that: the utility model discloses a charger, including charger body (1), heat dissipation box (2), rear side fixedly connected with fixed bolster (3) of heat dissipation box (2) inner chamber, the both sides of fixed bolster (3) inner chamber all are through support fixedly connected with fan (4), all be provided with fin (5) around charger body (1) inner chamber, one side fixedly connected with heat-conducting plate (6) of charger body (1) inner chamber are kept away from in fin (5), the rear end fixedly connected with fixed plate (7) of charger body (1), the inner chamber of fixed plate (7) is provided with exhaust groove (8).

2. The lithium battery charging protection device of claim 1, wherein: threaded holes (9) are formed in the periphery of the bottom of the inner cavity of the heat conduction plate (6) and are matched with the heat conduction plate (6).

3. The lithium battery charging protection device of claim 1, wherein: the front side swing joint of heat dissipation box (2) inner chamber has dust screen (10), heat dissipation box (2) is run through at the top of dust screen (10), the logical groove of using with dust screen (10) cooperation is seted up in the front of heat dissipation box (2).

4. The lithium battery charging protection device of claim 1, wherein: spacing groove (11) have all been seted up to the positive both sides of charger body (1), the equal fixedly connected with stopper (12) in both sides at the heat dissipation box (2) back, the rear side of stopper (12) extends to the inner chamber of spacing groove (11), and with the inner chamber swing joint of spacing groove (11).

5. The lithium battery charging protection device of claim 1, wherein: the equal fixedly connected with of both sides of heat dissipation box (2) top front end spacing box (13), the inner chamber swing joint of spacing box (13) has spacing post (14), the front end of spacing post (14) runs through to the outside of spacing box (13), and laminates with the top of dust screen (10).

6. The lithium battery charging protection device of claim 5, wherein: the rear end fixedly connected with fly leaf (15) of spacing post (14), the outside to spacing box (13) is run through at the top of fly leaf (15), the rear side fixedly connected with spring (16) of fly leaf (15), the rear end of spring (16) and the inner wall fixed connection of spacing box (13).

7. The lithium battery charging protection device of claim 1, wherein: the charger is characterized in that the front ends of the two sides of the charger body (1) are fixedly connected with fixing blocks (18), the rear ends of the two sides of the heat dissipation box (2) are connected with connecting rods (17) through rotating shafts in a movable mode, one ends, far away from the heat dissipation box (2), of the connecting rods (17) extend to inner cavities of the fixing blocks (18), and the connecting rods are movably connected with the inner cavities of the fixing blocks (18).

8. The lithium battery charging protection device of claim 7, wherein: one side of connecting rod (17) and the one end that is located fixed block (18) inner chamber have seted up locating hole (19), one side swing joint of fixed block (18) has threaded rod (20), the one end of threaded rod (20) runs through fixed block (18) and extends to the inner chamber of locating hole (19), and with the inner chamber swing joint of locating hole (19).

9. The protection device for lithium battery charging according to claim 8, wherein: the surface of one end, located at the positioning hole (19), of the threaded rod (20) is connected with the inner cavity of the fixing block (18), and one end, far away from the fixing block (18), of the threaded rod (20) is fixedly connected with a rotary table (21).