CN219106293U - High-temperature protection structure for lithium battery - Google Patents

Abstract

The utility model relates to the technical field of high-temperature protection structures for lithium batteries, and discloses a high-temperature protection structure for lithium batteries, which comprises a shell, wherein a protection plate is fixedly arranged on the outer wall of the shell, a filter screen is connected to the protection plate in a sliding way, a fixing device is fixedly arranged on the inner wall of the filter screen, the temperature inside the shell can be sensed through a temperature sensor, when the temperature is too high, the water pump is controlled to work through the electric connection of the temperature sensor and the water pump, the circulating liquid in a water tank can be sent into the circulating pipe to circulate through a guide pipe fixedly arranged on the outer wall of the water pump, and the cooling air emitted by the air exhaust fan fixedly arranged on the inner wall of a top cover can be sent into the top cover to cool a battery pack, so that the aim of cooling the device is fulfilled, and the influence of the temperature on the device is reduced.

Description

High-temperature protection structure for lithium battery

Technical Field

The utility model relates to the technical field of high-temperature protection structures for lithium batteries, in particular to a high-temperature protection structure for a lithium battery.

Background

In the process of using the lithium battery, the chemical reaction can occur in the lithium battery, so that heat can be generated in the lithium battery, the temperature of the lithium battery is further increased, and the service life of the lithium battery is reduced when the temperature of the lithium battery is too high.

The current high temperature protection structure for lithium cell can refer to the Chinese patent of the issued publication number CN208522011U, it discloses a lithium cell with high temperature protection structure, "including the lithium cell body, first splint is installed to the below of lithium cell body, nanometer heat dissipation membrane is installed in the laminating of the upper surface of lithium cell body, and the upper surface of lithium cell body is close to nanometer heat dissipation membrane top position department and installs separating mechanism, the second splint is installed to separating mechanism's top, one side of lithium cell body is connected with the elastic cord, the upper surface fixed mounting of first splint has the screw thread sleeve seat, the threaded rod is installed in the top embedding of screw thread sleeve seat, the top of threaded rod has cup jointed the end cap, the locating hole has been seted up to the inside of second splint, the one end of elastic cord is connected with the closing cap, one side of closing cap is provided with the rubber circle. This lithium cell with high temperature protection structure through the setting of nanometer heat dissipation membrane and separating mechanism, can make lithium cell separate with other objects for the air current in space around the lithium cell can effectual circulation, thereby has accelerated the heat dissipation of lithium cell. "

When the device is used, the lithium battery and other objects can be separated through the nano heat dissipation film and the separation mechanism, so that air flow in the space around the lithium battery can flow effectively, heat dissipation of the lithium battery is accelerated, but heat generated by the device in the use process cannot be completely dissipated, the practicability of the device is reduced, dust in the device is accumulated after the device is used for a long time, the accumulated dust can erode a circuit, and the service life of the device is further reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a high-temperature protection structure for a lithium battery, which has the advantages of better heat dissipation and cooling of the device and preventing high temperature from influencing the device, has the advantages of being capable of removing dust in the device and reducing short circuit caused by dust accumulation, and solves the problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a high temperature protection structure for lithium cell, includes the shell, the fixed guard plate that is equipped with of outer wall of shell, the sliding connection of guard plate has the filter screen, the fixed fixing device that is equipped with of inner wall of filter screen, the top screw thread connection of shell has the top cap, the fixed inner wall of shell is equipped with the inner box, the fixed exhaust fan that is equipped with of inner wall of inner box, the fixed water tank that is equipped with in bottom of top cap, the outer wall fixed mounting of water tank has the water pump, the outer wall of inner box is provided with the circulating pipe, the fixed temperature-sensing ware that is equipped with of inner wall of shell.

As a preferable technical scheme of the utility model, the fixing device comprises a pull rod, a clamping block is fixedly arranged on the outer edge of the pull rod, a fixing block is connected with the outer edge of the clamping block in a sliding manner, a fixing column is fixedly arranged on the inner wall of the fixing block, and a spring is sleeved on the outer edge of the fixing column in a sliding manner.

As a preferable technical scheme of the utility model, a round hole is formed in the outer wall of the clamping block, the shape of the round hole is matched with that of the fixing column, and the pull rod penetrates through the fixing column to be fixedly connected with the clamping block.

As a preferable technical scheme of the utility model, the outer wall of the filter screen is provided with a chute, and the shape of the chute is matched with the shape of the pull rod.

As a preferable technical scheme of the utility model, the outer wall of the shell is provided with a through groove, and the shape of the through groove corresponds to the position of the filter screen.

As a preferable technical scheme of the utility model, the outer wall of the water pump is fixedly provided with the guide pipe, and one end of the guide pipe, which is far away from the water pump, is fixedly connected with the circulating pipe.

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

1. this a high temperature protection structure for lithium cell through the temperature-sensing ware that is equipped with for can respond to the inside temperature of shell, when the temperature is too high, carry out electric connection through temperature-sensing ware and water pump, make control water pump work, carry out fixed connection through the pipe and the circulating pipe of the outer wall fixed assembly of water pump, make can send the circulating liquid in the water tank to the circulating pipe in circulate, the work of the exhaust fan of the inner wall fixed assembly through the top cap, make can send the air conditioning that the circulating pipe gives off to the top cap in cooling down the group battery, the purpose of cooling down the device has been reached, the temperature is reduced the device temperature influence.

2. This a high temperature protection structure for lithium cell through removing the filter screen for the clamp block is extruded to the guard plate, makes the clamp block remove extrusion spring, when the filter screen removes certain distance, through the elastic potential energy of spring, make the clamp block joint advance the installation of accomplishing the filter screen in the draw-in groove, through the pulling pull rod, make the clamp block atress that carries out fixed connection with the pull rod remove, cup joint in the outer edge of fixed column through the fixture block slip, make the clamp block remove while extrusion spring, and then make the elastic potential energy of increase spring, make the fixture block break away from the draw-in groove that the inner wall of guard plate was offered, accomplish the dismantlement to the device, reached the barrier of filter screen to external dust, the accumulation of the inside dust of the device has been reduced, the life of the device has been improved.

Drawings

FIG. 1 is a schematic diagram of a cooling structure according to the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 4 is a schematic view of a dust-proof structure of the present utility model;

fig. 5 is a schematic view of a fixing structure of the present utility model.

In the figure: 1. a housing; 2. a protection plate; 3. a filter screen; 4. a fixing device; 401. a pull rod; 402. a fixed block; 403. fixing the column; 404. a spring; 405. a clamping block; 5. a top cover; 6. an inner box; 7. an exhaust fan; 8. a water tank; 9. a water pump; 10. a circulation pipe; 11. a temperature sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a high temperature protection structure for a lithium battery includes a housing 1, a protection plate 2 is fixedly mounted on an outer wall of the housing 1, a filter screen 3 is slidably connected to the protection plate 2, a fixing device 4 is fixedly mounted on an inner wall of the filter screen 3, a top cover 5 is screwed on a top of the housing 1, an inner tank 6 is fixedly mounted on an inner wall of the housing 1, an exhaust fan 7 is fixedly mounted on an inner wall of the inner tank 6, a water tank 8 is fixedly mounted on a bottom of the top cover 5, a water pump 9 is fixedly mounted on an outer wall of the water tank 8, a circulating pipe 10 is disposed on an outer wall of the inner tank 6, a temperature sensor 11 is fixedly mounted on an inner wall of the housing 1, and cold air generated by circulating liquid in the circulating pipe 10 can be fed into the top cover 5 through the exhaust fan 7, so that a battery pack in the top cover 5 can be cooled.

Wherein, fixing device 4 includes pull rod 401, the outer edge fixed mounting of pull rod 401 has fixture block 405, the outer edge sliding connection of fixture block 405 has fixed block 402, the fixed column 403 that is equipped with of the inner wall of fixed block 402, the outer edge sliding sleeve of fixed column 403 has spring 404, through above-mentioned structure for pulling pull rod 401 drives the removal of fixture block 405, and then makes fixture block 405 break away from guard plate 2, makes the device be convenient for dismantle filter screen 3, has reduced the waste of user's installation and dismantlement time.

Wherein, the round hole has been seted up to the outer wall of fixture block 405, and the shape looks adaptation of round hole and fixed column 403, and pull rod 401 runs through fixed column 403 and fixture block 405 carries out fixed connection, through above-mentioned structure for can drive fixture block 405 extrusion spring 404, and then increase spring 404's elastic potential energy, in the draw-in groove of seting up the guard plate 2 inner wall is pushed in fixture block 405 through spring 404's elastic potential energy, improved the practicality of the device.

Wherein, the spout has been seted up to the outer wall of filter screen 3, and the shape looks adaptation of spout and pull rod 401 for through above-mentioned structure, the removal of pull rod 401 of being convenient for reduces the frictional resistance of pull rod 401 in-process of removing, and then has reduced the frictional loss of pull rod 401 in-process of removing.

Through the structure, dust in the device can be discharged to the outside through the positions of the filter screen 3 and the through groove when the exhaust fan 7 works, and the accumulation of the dust in the device is reduced.

Wherein, the outer wall of water pump 9 is fixed to be equipped with the pipe, and the pipe keeps away from the one end of water pump 9 and carries out fixed connection with circulating pipe 10, through above-mentioned structure for can send into circulating pipe 10 through the pipe with the circulation liquid in the water tank 8 and circulate, make can carry out even cooling to the each face of device.

The theory of operation is through the temperature-sensing ware 11 that is equipped with for can respond to the inside temperature of shell 1, when the temperature is too high, carry out electric connection through temperature-sensing ware 11 and water pump 9, make control water pump 9 work, carry out fixed connection through the pipe of the outer wall fixed mounting of water pump 9 and circulating pipe 10, make can send the circulating liquid in the water tank 8 to circulating pipe 10 in, work through the inner wall fixed mounting's of top cap 5 exhaust fan 7, make can send the air that circulating pipe 10 distributed to top cap 5 in cooling down the group battery, through removing filter screen 3, make guard plate 2 squeeze fixture block 405, make fixture block 405 remove extrusion spring 404, when filter screen 3 removes certain distance, through the elasticity potential energy of spring 404, make the installation of filter screen 3 is accomplished in the draw-bar 401 in the draw-in groove of joint, make with the draw-in bar 401 carry out fixed connection's fixture block 405 atress remove, slide the outer edge in fixed column 403 through fixture block 405, make fixture block 404 remove, and then make the elasticity potential energy that increases the spring 404 send the air that distributes to top cap 5, make guard plate 2 squeeze spring 404, make guard plate's elasticity potential energy break away from the inner wall 2, the guard plate 3 has reached the device that the guard plate is dismantled to the dust to the outside.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (6)

1. The utility model provides a be used for lithium cell to use high temperature protection structure, includes shell (1), its characterized in that: the utility model discloses a water pump, including shell (1), outer wall fixed mounting of shell (1) has guard plate (2), the sliding connection of guard plate (2) has filter screen (3), the inner wall fixed mounting of filter screen (3) has fixing device (4), the top screw thread connection of shell (1) has top cap (5), the inner wall fixed mounting of shell (1) has inner box (6), the inner wall fixed mounting of inner box (6) has exhaust fan (7), the bottom fixed mounting of top cap (5) has water tank (8), the outer wall fixed mounting of water tank (8) has water pump (9), the outer wall of inner box (6) is provided with circulating pipe (10), the inner wall fixed mounting of shell (1) has temperature-sensing ware (11).

2. The high temperature protective structure for a lithium battery according to claim 1, wherein: the fixing device (4) comprises a pull rod (401), a clamping block (405) is fixedly assembled on the outer edge of the pull rod (401), a fixing block (402) is slidably connected on the outer edge of the clamping block (405), a fixing column (403) is fixedly assembled on the inner wall of the fixing block (402), and a spring (404) is slidably sleeved on the outer edge of the fixing column (403).

3. The high temperature protective structure for a lithium battery according to claim 2, wherein: the outer wall of the clamping block (405) is provided with a round hole, the shape of the round hole is matched with the shape of the fixing column (403), and the pull rod (401) penetrates through the fixing column (403) to be fixedly connected with the clamping block (405).

4. The high temperature protective structure for a lithium battery according to claim 1, wherein: the outer wall of the filter screen (3) is provided with a chute, and the shape of the chute is matched with the shape of the pull rod (401).

5. The high temperature protective structure for a lithium battery according to claim 1, wherein: the outer wall of the shell (1) is provided with a through groove, and the shape of the through groove corresponds to the position of the filter screen (3).

6. The high temperature protective structure for a lithium battery according to claim 1, wherein: the outer wall of the water pump (9) is fixedly provided with a guide pipe, and one end of the guide pipe, which is far away from the water pump (9), is fixedly connected with the circulating pipe (10).

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