CN213660515U

CN213660515U - High-rate discharge protection device for power lithium battery

Info

Publication number: CN213660515U
Application number: CN202022896171.0U
Authority: CN
Inventors: 杨劲林
Original assignee: Anhui Yasidi New Energy Technology Co ltd
Current assignee: Anhui Yasidi New Energy Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-09
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a power lithium cell high magnification discharge protection device belongs to power lithium cell technical field, which comprises a housin, casing bottom outer wall four corners fixed mounting has the supporting leg, and four sides of casing and bottom inner wall fixed mounting have the fin of a plurality of equidistance, a plurality of fin one end fixedly connected with heat conduction box, and the inside fixed lithium cell of having placed of heat conduction box. The utility model discloses in by interior and having set gradually heat conduction box through four sides of lithium cell outward, the fin, a housing, rely on heat conduction box, the fin, the heat conductivility of the preparation material of casing itself dispels the heat, and the lithium cell top is provided with the mosquito-repellent incense pipe, the heat conductivility that utilizes the mosquito-repellent incense pipe carries out heat exchange with the coolant liquid, take away partial heat fast, and the casing top is provided with air exhauster and casing bottom and is provided with the bleeder vent, the filter box, accelerate the air flow, take away the inside heat of casing fast, reach the heat production and the balance of dispersing.

Description

High-rate discharge protection device for power lithium battery

Technical Field

The utility model relates to a power lithium cell technical field especially relates to a power lithium cell high magnification discharge protection device.

Background

The power battery is a power supply for providing a power source for the tool, and is a storage battery for providing power for electric vehicles, electric trains, electric bicycles and golf carts, and is widely applied in the industries of new energy vehicles, electric bicycles, electric vehicles and the like; among them, the lithium iron battery is a new green high-energy chemical power source which is successfully marketed, and shows very superior performance in the aspect of being applied to electronic equipment and electric toys which need high-energy high-power sources.

The lithium iron battery has the following outstanding advantages: the battery can be interchanged with an alkaline zinc-manganese battery in any application, has longer working time and higher and flatter working voltage, particularly discharges at a medium current, is an environment-friendly green power supply, does not use any toxic substances such as mercury, chromium, lead and the like, has good storage performance, and can be placed for ten years; however, the power lithium battery needs to be protected during high-rate discharge, and the conventional high-rate discharge protection device for the power lithium battery has the problems of low heat dissipation efficiency and easy occurrence of safety accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-rate discharge protection device for a power lithium battery.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a power lithium cell high magnification discharge protection device, includes the casing, casing bottom outer wall four corners fixed mounting has the supporting leg, and four sides of casing and bottom inner wall fixed mounting have a plurality of equidistant fin, a plurality of fin one end fixedly connected with heat conduction box, and the inside fixed lithium cell of having placed of heat conduction box, four inner wall top fixed mounting of four sides of casing have the air exhauster, and set up equidistant bleeder vent in the middle of the casing bottom outer wall, four inner wall top fixed mounting of heat conduction box have the end cover, and end cover top both sides have seted up equidistant louvre, inlay in the middle of the end cover top and install the mosquito-repellent incense pipe, mosquito-repellent incense pipe entrance point and exit end all have the coolant liquid case through the pipe connection.

Preferably, pull rings are rotatably mounted at the upper ends of the outer walls of the four sides of the shell, and equidistant rubber round points are embedded in the outer walls of the four sides of the shell.

Preferably, the type shape opening has been seted up to the supporting leg bottom, and type shape opening inner wall slip inlays and installs the snubber block, the snubber block is the article font, and the snubber block is made by thermoplastic polyurethane elastomer rubber.

Preferably, the plurality of radiating fins penetrate through the heat conducting box and are attached to the outer wall of the lithium battery, and the outer wall of each radiating fin is provided with through holes at equal intervals.

Preferably, the outer wall of the bottom end of the shell is fixedly provided with a filter box, the filter box is positioned outside the plurality of air holes, and a filter screen layer, a cotton cloth layer, an activated carbon layer and a moisture absorption layer are sequentially arranged inside the filter box from outside to inside.

Preferably, the heat conducting performance of the heat conducting box, the mosquito coil pipe, the radiating fin, the shell and the cooling liquid box is reduced in sequence.

Preferably, the lower extreme has seted up the rectangular channel in the outer wall of coolant liquid case one end, and the drain pipe pegs graft in coolant liquid case lower extreme, and the feed liquor pipe pegs graft in coolant liquid case upper end, and feed liquor pipe lower extreme fixed mounting has the circulating pump, the rectangular channel inner wall pegs graft and has equidistant filter frame of cross distribution from top to bottom, and the rotation of filter frame both ends inner wall installs equidistant plectrum.

The beneficial effects of the utility model are that:

1. the utility model provides a pair of power lithium cell high magnification discharge protection device, by interior and set gradually the heat conduction box through four sides of lithium cell, the fin, a housing, rely on the heat conduction box, the fin, the heat conductivility of casing preparation material itself dispels the heat, and the lithium cell top is provided with the mosquito-repellent incense pipe, the heat conductivility that utilizes the mosquito-repellent incense pipe carries out heat exchange with the coolant liquid, take away partial heat fast, and the casing top is provided with the air exhauster and the casing bottom is provided with the bleeder vent, the filter box, accelerate the air current, take away the inside heat of casing fast, reach the heat production and the balance of dispersing.

2. The utility model provides a pair of power lithium cell high magnification discharge protection device, the snubber block that is provided with thermoplastic polyurethane elastomer rubber through the supporting leg bottom and four side outer walls of casing are all inlayed and are installed equidistant rubber dot, increase the holistic anti collision function of device, and then better protection lithium cell, filter screen layer, cotton layer, activated carbon layer, the layer of absorbing moisture have set gradually from outside to inside through the filter cartridge is inside, ensure that the inside air of getting into the casing is clean dry.

3. The utility model provides a pair of power lithium cell high magnification discharge protection device pegs graft through the rectangular channel inner wall and has equidistant upper and lower cross distribution's filter frame, and when the coolant liquid in the drain pipe was discharged, the plectrum was strikeed to the coolant liquid flow for the plectrum rotates, reaches the purpose that rolls and mix the coolant liquid, mixes and thermal giving off of coolant liquid cold and hot with higher speed.

Drawings

Fig. 1 is a schematic structural view of a high-rate discharge protection device for a power lithium battery provided by the present invention;

FIG. 2 is a schematic diagram of a side view structure of a support leg of the high-rate discharge protection device for a power lithium battery provided by the present invention;

fig. 3 is a schematic view of a top view structure of an end cap of a high-rate discharge protection device for a power lithium battery provided by the present invention;

fig. 4 is a schematic structural diagram of a coolant tank of a high-rate discharge protection device for a power lithium battery provided in embodiment 2 of the present invention.

In the figure: 1 casing, 2 air blowers, 3 mosquito-repellent incense pipes, 4 lithium batteries, 5 end covers, 6 heat conduction boxes, 7 radiating fins, 8 filter boxes, 9 air vents, 10 supporting legs, 11 shock absorption blocks, 12 radiating holes, 13 cooling liquid tanks, 14 circulating pumps, 15 filter sheet frames and 16 rectangular grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-4, a high-rate discharge protection device for a power lithium battery, which comprises a shell 1, wherein supporting legs 10 are fixedly arranged at four corners of the outer wall of the bottom end of the shell 1, a plurality of radiating fins 7 are fixedly arranged on the four sides of the shell 1 and the inner wall of the bottom end of the shell at equal intervals, a heat conduction box 6 is fixedly connected to one end of each radiating fin 7, a lithium battery 4 is fixedly arranged inside each heat conduction box 6, an exhaust fan 2 is fixedly arranged at the top end of the inner wall of the four sides of the shell 1, air holes 9 at equal intervals are formed in the middle of the outer wall of the bottom end of the shell 1, end covers 5 are fixedly arranged at the top ends of the inner walls of the four sides of each heat conduction box 6, heat dissipation holes 12 at equal intervals are formed in the two sides of the top ends of the end covers 5, a mosquito-repellent incense tube 3 is embedded in the middle of the top ends of the end covers 5, and inlet ends and outlet ends of the mosquito-repellent incense tube 3 are connected with a cooling liquid tank 13 through pipelines.

In the utility model, pull rings are rotatably arranged at the upper ends of the outer walls of four sides of the shell 1, and equidistant rubber dots are embedded and arranged on the outer walls of four sides of the shell 1;

the bottom end of the supporting leg 10 is provided with a convex opening, the inner wall of the convex opening is slidably embedded with a damping block 11, the damping block 11 is in a delta shape, and the damping block 11 is made of thermoplastic polyurethane elastomer rubber;

the plurality of radiating fins 7 penetrate through the heat conduction box 6 and are attached to the outer wall of the lithium battery 4, and the outer wall of each radiating fin 7 is provided with through holes at equal intervals;

a filter box 8 is fixedly arranged on the outer wall of the bottom end of the shell 1, the filter box 8 is positioned outside the plurality of air holes 9, and a filter screen layer, a cotton cloth layer, an active carbon layer and a moisture absorption layer are sequentially arranged inside the filter box 8 from outside to inside;

the heat conductivity of the heat conduction box 6, the mosquito coil tube 3, the heat radiation fins 7, the shell 1 and the cooling liquid tank 13 is reduced in sequence.

The working principle is as follows: the heat conduction box 6, the radiating fins 7 and the shell 1 are sequentially arranged on four sides of the lithium battery 4 from inside to outside, heat is radiated by the heat conduction performance of the materials for manufacturing the heat conduction box 6, the radiating fins 7 and the shell 1, the mosquito-repellent incense tube 3 is arranged at the top end of the lithium battery 4, heat exchange is carried out between the heat conduction performance of the mosquito-repellent incense tube 3 and cooling liquid, partial heat is quickly taken away, the exhaust fan 2 is arranged at the top end of the shell 1, the air vent 9 and the filter box 8 are arranged at the bottom end of the shell 1, air flow is accelerated, heat in the shell 1 is quickly taken away, and balance between heat generation and radiation is achieved; be provided with the snubber block 11 that thermoplastic polyurethane elastomer rubber made and four side outer walls of casing 1 through supporting leg 10 bottom and all inlay and install equidistant rubber dot, increase the holistic anti collision function of device, and then better protection lithium cell 4, through filter box 8 inside from outer to interior filter screen layer, cotton layer, active carbon layer, the layer of absorbing damp of having set gradually, ensure that the air that gets into casing 1 inside is clean dry.

Example 2

Referring to fig. 4, a power lithium cell high magnification discharge protection device, further, the lower extreme has seted up rectangular channel 16 in the outer wall of cooling liquid case 13 one end, and the drain pipe pegs graft in cooling liquid case 13 lower extreme, and the feed liquor pipe pegs graft in cooling liquid case 13 upper end, and feed liquor pipe lower extreme fixed mounting has circulating

pump

14, and 16 inner walls of rectangular channel peg graft have equidistant filter frame 15 of crossing distribution from top to bottom, and the rotation of filter frame 15 both ends inner wall installs equidistant plectrum.

The working principle is as follows: the filter disc frames 15 which are distributed in an up-and-down cross mode at equal intervals are inserted into the inner wall of the rectangular groove 16 in an inserted mode, when cooling liquid in the liquid outlet pipe is discharged, the cooling liquid impacts the poking sheet, the poking sheet rotates, the purpose of rolling and stirring the cooling liquid is achieved, and cold and hot mixing and heat emission of the cooling liquid are accelerated.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a power lithium cell high rate discharge protection device, includes casing (1), its characterized in that, casing (1) bottom outer wall four corners fixed mounting has supporting leg (10), and casing (1) four sides and bottom inner wall fixed mounting have a plurality of equidistant fin (7), a plurality of fin (7) one end fixedly connected with heat conduction box (6), and inside fixed placing lithium cell (4) of heat conduction box (6), four side inner wall top fixed mounting of casing (1) have air exhauster (2), and set up equidistant bleeder vent (9) in the middle of casing (1) bottom outer wall, four side inner wall top fixed mounting of heat conduction box (6) have end cover (5), and end cover (5) top both sides set up equidistant louvre (12), inlay in the middle of end cover (5) top and install mosquito-repellent incense pipe (3), mosquito-repellent pipe (3) entrance point and exit end all have coolant liquid case (13) through the pipe connection.

2. The high-rate discharge protection device for lithium power battery as claimed in claim 1, wherein the pull ring is rotatably installed on the upper end of the four outer walls of the casing (1), and equidistant rubber dots are embedded on the four outer walls of the casing (1).

3. The high-rate discharge protection device for the power lithium battery as claimed in claim 2, wherein the bottom end of the support leg (10) is provided with a convex opening, and the inner wall of the convex opening is slidably embedded with a damping block (11), the damping block (11) is in a triangular shape, and the damping block (11) is made of thermoplastic polyurethane elastomer rubber.

4. The high-rate discharge protection device for the lithium power battery as claimed in claim 1, wherein a plurality of heat dissipation fins (7) penetrate through the heat conduction box (6) and are attached to the outer wall of the lithium battery (4), and through holes are formed in the outer wall of each heat dissipation fin (7) at equal intervals.

5. The high-rate discharge protection device for the power lithium battery as claimed in claim 2, wherein a filter box (8) is fixedly installed on the outer wall of the bottom end of the casing (1), the filter box (8) is located outside the plurality of air holes (9), and a filter screen layer, a cotton cloth layer, an activated carbon layer and a moisture absorption layer are sequentially arranged inside the filter box (8) from outside to inside.

6. The high-rate discharge protection device for the power lithium battery as claimed in claim 1, wherein the heat conducting performance of the heat conducting box (6), the mosquito coil tube (3), the heat radiating fins (7), the shell (1) and the cooling liquid tank (13) is reduced in sequence.

7. The high-rate discharge protection device for the power lithium battery as claimed in claim 1, wherein a rectangular groove (16) is formed in the middle lower end of the outer wall of one end of the cooling liquid tank (13), the liquid outlet pipe is inserted into the lower end of the cooling liquid tank (13), the liquid inlet pipe is inserted into the upper end of the cooling liquid tank (13), a circulating pump (14) is fixedly installed at the lower end of the liquid inlet pipe, filter frames (15) which are distributed in a vertically crossed manner and are equidistantly inserted into the inner wall of the rectangular groove (16), and plectrums which are equidistantly installed on the inner walls of the two ends of each filter frame (15) in a rotating manner.