CN218939821U

CN218939821U - Thermal runaway protection structure of storage battery

Info

Publication number: CN218939821U
Application number: CN202223485871.6U
Authority: CN
Inventors: 黄伟; 倪志超; 吴锦俊
Original assignee: Yangzhou Fengwei New Energy Technology Co ltd
Current assignee: Pratt&whitney LLC
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-28
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the field of storage batteries, in particular to a thermal runaway protection structure of a storage battery, which comprises a mounting bottom plate, a ventilation valve and a fixed frame, wherein the upper end of the mounting bottom plate is fixedly provided with a protection shell, the inside of the protection shell is provided with the fixed frame, the storage battery is fixed in the fixed frame, two sides of the fixed frame are provided with buffer springs, the lower end of the fixed frame is provided with a plurality of groups of support springs, the lower end of each support spring is fixedly arranged on the upper end face of the corresponding guide plate, the upper end of the corresponding guide shell is fixedly provided with a mounting top plate, the left side of the upper end of the mounting top plate is fixedly provided with the ventilation valve.

Description

Thermal runaway protection structure of storage battery

Technical Field

The utility model relates to the technical field of storage batteries, in particular to a thermal runaway protection structure of a storage battery.

Background

The device that converts chemical energy into electrical energy is called a chemical battery, commonly referred to simply as a battery. After discharge, the internal active species can be regenerated by means of charging—storing electrical energy as chemical energy; when discharge is required, chemical energy is converted into electric energy again. Such a Battery is called a Storage Battery (Storage Battery), which is also called a secondary Battery. The storage battery is an electrochemical device that stores chemical energy and emits electric energy when necessary.

In the related art, when each battery is collided or extruded, the battery is easily damaged, so that the temperature and output current of the battery are changed, and the risk of explosion caused by thermal failure is easily generated.

The above information disclosed in this background section is only for the understanding of the background of the inventive concept and, therefore, it may contain information that does not form the prior art.

Disclosure of Invention

The utility model aims to provide a thermal runaway protection structure of a storage battery, which solves the problems that when each storage battery provided in the background art is collided or extruded, the storage battery is easy to damage, the temperature and the output current of the storage battery are changed, and the explosion danger caused by thermal failure is easy to occur.

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

the utility model provides a thermal runaway protective structure of battery, includes mounting plate, protective housing, ventilative valve and fixed frame, the fixed protective housing that is provided with in mounting plate upper end, protective housing internally mounted is provided with fixed frame, fixed frame inside is fixedly provided with the battery, the left and right sides symmetry of fixed frame is provided with multiunit buffer spring, buffer spring's one end and fixed frame lateral wall fixed connection, buffer spring's the other end and protective housing's inside welded fastening, the lower extreme installation of fixed frame is provided with multiunit supporting spring, supporting spring's lower extreme is fixed to be set up at the guide plate up end, the fixed upper end that sets up at mounting plate of guide plate, the fixed mounting plate is installed to protective housing upper end, the fixed ventilative valve that is provided with in mounting plate upper end left side.

In some embodiments, the front end of the protective shell is provided with an infrared thermometer, and the left side, the right side, the front end and the rear end of the protective shell are symmetrically provided with semiconductor refrigerating sheets.

In some embodiments, a relay box is installed on the right side of the upper end of the installation top plate, and the relay box is electrically connected with the infrared thermometer and the semiconductor refrigerating sheet.

In some embodiments, the lower ends of the front end and the rear end of the protective shell are provided with overflow ports at corresponding positions of guide plates, the guide plates are smooth stainless steel guide plates with surfaces coated with hydrophobic coatings, and the guide plates are provided with a certain inclination angle.

In some embodiments, a rotating screw is rotatably arranged at the central position of the upper end of the mounting top plate, the rotating screw is in threaded engagement with the mounting top plate, a rotating handle is welded at the upper end of the rotating screw, and a fastening nut is in threaded engagement with the rotating screw outside the protective shell.

In some embodiments, the lower end of the rotating screw is rotatably arranged in the movable sleeve, a fixed top plate is fixedly arranged at the lower end of the movable sleeve, and a heat dissipation hole is formed in the fixed top plate.

The beneficial effects of the utility model are as follows:

according to the utility model, the semiconductor refrigerating sheet is arranged, so that the storage battery can be cooled when the temperature of the storage battery is higher, the relay and the infrared thermometer in the relay box are matched, the power of the semiconductor refrigerating sheet can be adjusted according to the temperature, and meanwhile, the overflow port and the guide plate are arranged, so that condensed water generated in the cooling process can be discharged out of the device in time, and the short circuit of the storage battery is avoided.

Drawings

FIG. 1 is a schematic diagram of a thermal runaway protection structure for a storage battery according to the present utility model;

FIG. 2 is a schematic diagram of an internal structure of a thermal runaway protection structure of a storage battery according to the present utility model;

fig. 3 is a schematic structural diagram of a screw assembly of a thermal runaway protection structure for a storage battery according to the present utility model.

In the figure: the air-permeable valve is characterized in that the air-permeable valve is 1, the rotary screw is 2, the rotary handle is 3, the relay box is 4, the infrared thermometer is 5, the protective housing is 6, the overflow port is 7, the mounting bottom plate is 8, the semiconductor refrigerating sheet is 9, the mounting top plate is 10, the fixed top plate is 11, the buffer spring is 12, the fixed frame is 13, the supporting spring is 14, the guide plate is 15, the storage battery is 16, the fastening nut is 17, and the movable sleeve is 18.

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.

It should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is commonly put in place when used, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a thermal runaway protection structure for a storage battery comprises a mounting base plate 8, a protective housing 6, an air ventilation valve 1 and a fixing frame 13, wherein the upper end of the mounting base plate 8 is fixedly provided with the protective housing 6, the fixing frame 13 is arranged in the protective housing 6, a storage battery 16 is fixedly arranged in the fixing frame 13, a plurality of groups of buffer springs 12 are symmetrically arranged on the left side and the right side of the fixing frame 13, one end of each buffer spring 12 is fixedly connected with the side wall of the fixing frame 13, the other end of each buffer spring 12 is fixedly welded with the inner side of the protective housing 6, a plurality of groups of supporting springs 14 are arranged at the lower end of each fixing frame 13, the lower end of each supporting spring 14 is fixedly arranged on the upper end face of a guide plate 15, the guide plate 15 is fixedly arranged at the upper end of the mounting base plate 8, a mounting top plate 10 is fixedly arranged at the upper end of the protective housing 6, the air ventilation valve 1 is fixedly arranged on the left side of the upper end of the mounting top plate 10, and the air ventilation valve 1 is convenient for air exchange between the device and the outside, and the air circulation inside the device is kept.

In the embodiment of the utility model, as shown in fig. 1, an infrared thermometer 5 is installed at the front end of a protective shell 6, semiconductor refrigerating sheets 9 are symmetrically installed at the left side, the right side and the front end of the protective shell 6, a relay box 4 is installed at the right side of the upper end of a mounting top plate 8, the relay box 4 is electrically connected with the infrared thermometer 5 and the semiconductor refrigerating sheets 9, a relay in the relay box 4 can regulate the power of the semiconductor refrigerating sheets 9 according to the monitoring data of the infrared thermometer 5, and the temperature in a control device is a constant value.

In the embodiment of the utility model, as shown in fig. 1 and 2, the lower ends of the front end and the rear end of the protective shell 6 are provided with overflow ports 7 at corresponding positions of the guide plates 15, the guide plates 15 are smooth stainless steel guide plates with hydrophobic coatings coated on the surfaces, the guide plates 15 are provided with a certain inclination angle, condensed water can be generated due to high air humidity in the working process of the semiconductor refrigerating sheet 9, and the guide plates 15 and the overflow ports 7 can timely discharge the condensed water in the device to prevent the condensed water from damaging the storage battery 16.

In the embodiment of the utility model, as shown in fig. 1 and 3, a rotating screw rod 2 is rotatably arranged at the central position of the upper end of a mounting top plate 10, the rotating screw rod 2 is in threaded engagement with the mounting top plate 10, a rotating handle 3 is welded at the upper end of the rotating screw rod 2, a fastening nut 17 is in threaded engagement with the rotating screw rod 2 at the outer side of a protective shell 6, the lower end of the rotating screw rod 2 is rotatably arranged in a movable sleeve 18, a fixed top plate 11 is fixedly arranged at the lower end of the movable sleeve 18, a heat dissipation hole is formed in the fixed top plate 11, the rotating screw rod 2 is rotated through the rotating handle 3, the fixed top plate 11 can be moved downwards, a storage battery 16 is fixed in the fixed frame 13, and the rotating screw rod 2 is fixed through the fastening nut 17.

In this embodiment, be provided with semiconductor refrigeration piece 9, can cool down battery 16 when battery 16 temperature is higher, cooperation relay box 4 and infrared thermometer 5 can adjust according to the power of semiconductor refrigeration piece 9 of temperature, set up overflow port 7 and guide plate 15 simultaneously, can in time discharge the outside of device with the comdenstion water that produces in the cooling process, avoid causing the short circuit of battery 16.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a battery thermal runaway protective structure, includes mounting plate (8), protective housing (6), breather valve (1) and fixed frame (13), its characterized in that: the upper end of the mounting bottom plate (8) is fixedly provided with a protective shell (6), the inside of the protective shell (6) is provided with a fixed frame (13), a storage battery (16) is fixedly arranged in the fixed frame (13), a plurality of groups of buffer springs (12) are symmetrically arranged on the left side and the right side of the fixed frame (13), one end of each buffer spring (12) is fixedly connected with the side wall of the fixed frame (13), the other end of each buffer spring (12) is fixedly welded with the inside of the protective shell (6), the lower extreme installation of fixed frame (13) is provided with multiunit supporting spring (14), the lower extreme of supporting spring (14) is fixed to be set up in guide plate (15) up end, guide plate (15) are fixed to be set up in the upper end of mounting plate (8), the installation of protecting sheathing (6) upper end is fixed with mounting plate (10), the fixed breather valve (1) that is provided with in mounting plate (10) upper end left side.

2. The thermal runaway protection structure of a storage battery according to claim 1, wherein an infrared thermometer (5) is installed at the front end of the protection shell (6), and semiconductor refrigerating sheets (9) are symmetrically installed at the left side, the right side, the front end and the rear end of the protection shell (6).

3. The thermal runaway protection structure of the storage battery according to claim 1 or 2, wherein a relay box (4) is arranged on the right side of the upper end of the mounting top plate (10), and the relay box (4) is electrically connected with the infrared thermometer (5) and the semiconductor refrigerating sheet (9).

4. The thermal runaway protection structure of a storage battery according to claim 1, wherein overflow ports (7) are formed in corresponding positions of guide plates (15) at the lower ends of the front end and the rear end of the protection shell (6), the guide plates (15) are smooth stainless steel guide plates with surfaces coated with hydrophobic coatings, and the guide plates (15) are provided with a certain inclination angle.

5. The thermal runaway protection structure of a storage battery according to claim 1, wherein a rotating screw (2) is rotatably arranged at the central position of the upper end of the mounting top plate (10), the rotating screw (2) is in threaded engagement with the mounting top plate (10), a rotating handle (3) is welded at the upper end of the rotating screw (2), and a fastening nut (17) is in threaded engagement with the outer side of the protection shell (6) by the rotating screw (2).

6. The thermal runaway protection structure of a storage battery according to claim 5, wherein the lower end of the rotating screw (2) is rotatably arranged in the movable sleeve (18), a fixed top plate (11) is fixedly arranged at the lower end of the movable sleeve (18), and a heat dissipation hole is formed in the fixed top plate (11).