CN216956121U

CN216956121U - Module circulation test safety device

Info

Publication number: CN216956121U
Application number: CN202220441784.1U
Authority: CN
Inventors: 余国勇
Original assignee: Huading Guolian Sichuan Battery Material Co ltd
Current assignee: Huading Guolian Sichuan Battery Material Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-12
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a module cycle test safety device, which comprises a box body, wherein a test cavity and a fire extinguishing cavity are formed in the box body; the fire extinguishing cavity is positioned below the testing cavity, and the testing cavity is isolated from the fire extinguishing cavity through a rotary supporting plate; a sample to be tested is placed in the testing cavity and is supported by the rotary supporting plate; a switching plate is inserted at the side surface of the box body and matched with the position of the rotating support plate, and the switching plate is supported at the bottom of the rotating support plate; when the switching plate is far away from the box body, the rotary supporting plate is turned downwards by the gravity of the sample to drive the sample to enter the fire extinguishing cavity. The safety device provided by the utility model has the advantages that the rotary supporting plate is utilized to divide the testing cavity and the fire extinguishing cavity, the switching plate is used for controlling the opening and closing of the rotary supporting plate, the testing sample is placed in the testing cavity, when thermal runaway occurs, the switching plate is drawn out, the rotary plate can be driven to overturn under the action of the gravity of the sample, so that the sample can be timely thrown into the water in the fire extinguishing cavity, the fire spread is avoided, the operation is convenient, and the control is timely.

Description

Module circulation test safety device

Technical Field

The utility model relates to the technical field of lithium ion battery testing, in particular to a module cycle testing safety device.

Background

As a power source of a new energy automobile, due to high energy density, the endurance mileage can meet the rudiment requirements of most people, is popular with consumers, has continuously increased requirements for lithium ion power batteries, has more and more requirements for cycle testing of the lithium ion batteries, and increases the risk level of the module thermal runaway phenomenon possibly occurring in the cycle testing process; safety is a first requirement of laboratories, and in order to ensure test safety, module cycle test safety devices are used more and more widely to ensure the safety of testers and property.

The common safety device in the prior art is an explosion-proof high-low temperature box, a circular test sample is generally placed in the explosion-proof high-low temperature box for circular test, the fire behavior is difficult to control in a short time when thermal runaway occurs, other inward test samples can be subjected to a front face, irrecoverable loss is caused, the explosion-proof high-low temperature box is high in cost and large in size, a large space needs to be occupied, and maintenance and repair cost is extremely high.

Therefore, in view of the above technical problems, it is highly desirable to develop a novel module cycle test safety device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a module cycle test safety device which is simple in structure, convenient to operate, capable of timely taking a countermeasure to avoid fire spreading when a module is out of control due to thermal runaway, and low in use cost and maintenance cost.

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

the utility model relates to a module cycle test safety device, which comprises:

the universal wheel is arranged at the bottom of the box body;

a test cavity and a fire extinguishing cavity are formed in the box body;

the fire extinguishing cavity is positioned below the testing cavity, and the testing cavity is isolated from the fire extinguishing cavity through a rotary supporting plate;

a sample to be tested is placed in the testing cavity and is supported by the rotary supporting plate;

a switching plate is inserted at the side surface of the box body and matched with the position of the rotating support plate, and the switching plate is supported at the bottom of the rotating support plate;

when the switching plate is far away from the box body, the rotary supporting plate is turned downwards by the gravity of the sample to drive the sample to enter the fire extinguishing cavity.

Furthermore, a monitoring cavity is formed inside the box body and above the testing cavity;

a smoke detector and a temperature-sensitive alarm are arranged in the monitoring cavity;

the monitoring cavity is communicated with the testing cavity part so as to monitor the testing cavity through the smoke detector and the temperature-sensitive alarm in the monitoring cavity.

Furthermore, the box body is made of 304 stainless steel;

at least the front side of the test cavity is provided with an explosion-proof door;

the side of the box body is provided with a threading hole, and the threading hole is communicated with the test cavity.

Further, the height of the fire extinguishing cavity is 1000 mm;

water is stored in the fire extinguishing chamber, and the depth of the water is 600-800 mm;

the side surface of the fire extinguishing cavity is provided with a side door, the height of the side door is higher than the water depth in the fire extinguishing cavity, and the fire extinguishing cavity is filled with water through the side door;

the bottom of the box body is provided with a water drain valve communicated with the fire extinguishing cavity.

Further, the rotary supporting plate comprises two rotary plates;

one side, close to the inner wall of the box body, of each rotating plate is hinged with the inner wall of the box body through a rotating shaft, and one sides, far away from the inner wall of the box body, of the two rotating plates are close to each other and are attached to each other;

the switching plate is inserted into the box body from the side surface of the box body and lifts the rotating plate to limit the rotating plate to turn downwards.

Furthermore, the side surface of the box body is provided with a socket;

the switch board includes:

an insertion body; and

an operation body integrally formed with the plug body;

the plug-in body is embedded into the box body along the horizontal direction through the plug-in port and is supported at the bottom of the rotating plate;

the operating body is located outside the box body.

Further, the plug body is configured as at least two plug rods arranged at intervals along the width direction of the rotating plate, or the plug body is configured as a plug plate with a width smaller than the width of the rotating plate.

In the technical scheme, the module cycle test safety device provided by the utility model has the following beneficial effects:

the safety device of the utility model utilizes the rotary supporting plate to divide the testing cavity and the fire extinguishing cavity, controls the opening and closing of the rotary supporting plate through the switching plate, places a test sample in the testing cavity, and when thermal runaway occurs, the switching plate is drawn out to drive the rotary plate to overturn under the action of the gravity of the sample so as to enable the sample to be thrown into the water in the fire extinguishing cavity in time, thereby avoiding the spread of fire, being convenient to operate and being timely controlled.

The safety device provided by the utility model utilizes the smoke detector and the temperature-sensitive alarm to monitor the environment in the test cavity in real time, so that timely detection and alarm can be ensured when the thermal runaway occurs, and the safety is improved; the box body is moved through the universal wheels, so that the use is convenient, and the occupied space is small.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a module cycle testing safety device according to an embodiment of the present invention;

FIG. 2 is a front view of a module cycle testing safety device according to an embodiment of the present invention;

fig. 3 is a schematic view of a structure of a rotating support plate and a switching plate of a module cycle testing safety device according to an embodiment of the present invention.

Description of reference numerals:

1. a box body; 2. a sample; 4. a switching plate;

101. a test chamber; 102. a fire extinguishing chamber; 103. a monitoring chamber; 104. threading holes; 105. a water drain valve;

301. a rotating plate;

401. an interface; 402. an insertion body; 403. an operation body;

501. a smoke detector; 502. a temperature sensing alarm.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

See fig. 1-3;

the module cycle test safety device of this embodiment, this safety device includes:

the device comprises a box body 1, wherein universal wheels are arranged at the bottom of the box body 1;

a test cavity 101 and a fire extinguishing cavity 102 are formed inside the box body 1;

the fire extinguishing chamber 102 is positioned below the testing chamber 101, and the testing chamber 101 and the fire extinguishing chamber 102 are isolated by a rotary supporting plate;

a sample 2 to be tested is placed in the testing cavity 101 and is supported by the rotary supporting plate;

a switching plate 4 is inserted at the side surface of the box body 1 and the position matched with the position of the rotating support plate, and the switching plate 4 is supported at the bottom of the rotating support plate;

as switch plate 4 moves away from housing 1, the rotating support plate is flipped downward by the weight of the sample to drive the sample into the extinguishing chamber 102.

Specifically, this embodiment discloses a safety device suitable for lithium ion battery module cycle test, and the device includes box 1, and it removes through the universal wheel of bottom. Have test chamber 101 and the chamber 102 of putting out a fire in box 1, test chamber 101 and the chamber 102 of putting out a fire are cut apart through rotatory backup pad, and the rotatory backup pad of this embodiment is supported through switching board 4, and when taking out switching board 4, rotatory backup pad can overturn downwards under the action of gravity of sample to in letting the sample drop into the chamber 102 of putting out a fire of below, can control the intensity of a fire in time when the operating personnel discovers thermal runaway.

Preferably, a monitoring cavity 103 is formed inside the box body 1 and above the testing cavity 101;

a smoke detector 501 and a temperature-sensitive alarm 502 are arranged in the monitoring cavity 103;

the monitoring chamber 103 and the test chamber 101 are in partial communication to monitor the test chamber through a smoke detector 501 and a temperature sensitive alarm 502 within the monitoring chamber 103.

Wherein, the material of the box body 1 is 304 stainless steel;

an explosion vent is installed at least on the front side of the test chamber 101;

the side of the box body 1 is provided with a threading hole 104, and the threading hole 104 is communicated with the test cavity 101.

The surface of the box body 1 of the embodiment is subjected to insulation and high temperature resistance treatment at 500 ℃, so that toxic smoke generated by common paint can not be generated when a module is on fire. The smoke detector 501 and the temperature sensitive alarm 502 of the present embodiment may be electrically connected to the control system, and may issue an alarm in time and notify an operator to perform related operations as a fire occurs in the test chamber 101.

Preferably, the height of the fire extinguishing chamber 102 of the present embodiment is 1000 mm;

water is stored in the fire extinguishing cavity 102, and the depth of the water is 600-800 mm;

the side surface of the fire extinguishing cavity 102 is provided with a side door, the height of the side door is higher than the water depth in the fire extinguishing cavity 102, and the fire extinguishing cavity 102 is filled with water through the side door;

the bottom of the tank 1 has a discharge valve 105 communicating with the fire extinguishing chamber 102.

According to the size of test module to and the requirement of putting out a fire when taking place the condition of a fire, the high design of the chamber 102 of putting out a fire of this embodiment is 1000mm, and the depth of water also control 600 ~ 800mm can, when the upset downwards of rotating support plate, the sample falls to submerge completely behind the chamber 102 of putting out a fire, improves the security, guarantees to control the intensity of a fire.

Preferably, the rotation support plate of the present embodiment includes two rotation plates 301;

one side of the rotating plates 301 close to the inner wall of the box body 1 is hinged with the inner wall of the box body 1 through a rotating shaft, and one sides of the two rotating plates 301 far away from the inner wall of the box body 1 are close to each other and are attached;

the switch board 4 is inserted into the box body 1 from the side surface of the box body 1 and lifts the rotating board 301 to limit the rotating board 301 from turning downward.

Wherein, the side of the box body 1 is provided with a socket 401;

the switch board 4 includes:

a plug-in body 402; and

an operation body 403 integrally formed with the plug body 402;

the plug-in body 402 is embedded into the box body 1 along the horizontal direction through the plug-in port 401 and is supported at the bottom of the rotating plate 301;

the operating body 403 is located outside the case 1.

The rotation support plate comprises two rotation plates 301 which are hinged with the side wall of the box body 1, and when the switching plate 4 is inserted into the box body 1, the rotation plates 301 can be prevented from downwards overturning under the support of the switching plate 4, so that the sample 2 is supported, when fire is needed to be extinguished, the operating personnel directly takes out the switching plate 4, and the rotation plates 301 can automatically fall into the extinguishing cavity 102 below under the action of the gravity of the sample.

As an embodiment capable of supporting the rotating plate, the plug body 402 of the present embodiment is configured as at least two plug rods arranged at intervals in the width direction of the rotating plate 301, or the plug body 402 is configured as a plug plate having a width smaller than that of the rotating plate 301.

the safety device of the utility model utilizes the rotary supporting plate to divide the testing cavity 101 and the fire extinguishing cavity 102, and controls the switch of the rotary supporting plate through the switching plate 4, so that the testing sample 2 is placed in the testing cavity 101, when thermal runaway occurs, the switching plate 4 is drawn out, the rotary plate 301 can be driven to overturn under the action of the gravity of the sample 2, so that the sample can be thrown into the water in the fire extinguishing cavity 102 in time, the fire spread is avoided, the operation is convenient, and the control is timely.

The safety device provided by the utility model utilizes the smoke detector 501 and the temperature-sensitive alarm 502 to monitor the environment in the test cavity 101 in real time, so that timely detection and alarm can be realized when the thermal runaway is ensured, and the safety is improved; the box body 1 is moved through the universal wheels, so that the use is convenient, and the occupied space is small.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. Module cycle test safety device, its characterized in that, this safety device includes:

the device comprises a box body (1), wherein universal wheels are mounted at the bottom of the box body (1);

a testing cavity (101) and a fire extinguishing cavity (102) are formed in the box body (1);

the fire extinguishing chamber (102) is positioned below the testing chamber (101), and the testing chamber (101) and the fire extinguishing chamber (102) are isolated by a rotary supporting plate;

a sample (2) to be tested is placed in the testing cavity (101) and is supported by the rotary supporting plate;

a switching plate (4) is inserted into the side surface of the box body (1) and is matched with the position of the rotary supporting plate, and the switching plate (4) is supported at the bottom of the rotary supporting plate;

when the switching plate (4) is far away from the box body (1), the rotating support plate is downwards overturned by the gravity of the sample (2) to drive the sample (2) to enter the fire extinguishing chamber (102).

2. The modular cycle testing safety device according to claim 1, characterized in that a monitoring chamber (103) is formed inside the box body (1) and above the testing chamber (101);

a smoke detector (501) and a temperature-sensitive alarm (502) are arranged in the monitoring cavity (103);

the monitoring cavity (103) is partially communicated with the test cavity (101) so as to monitor the test cavity (101) through a smoke detector (501) and a temperature-sensitive alarm (502) in the monitoring cavity (103).

3. The modular cycle testing safety device according to claim 1, wherein the box (1) is made of 304 stainless steel;

at least the front side of the test cavity (101) is provided with an explosion door;

the side of the box body (1) is provided with a threading hole (104), and the threading hole (104) is communicated with the test cavity (101).

4. A modular cycle testing safety device according to claim 3, wherein the height of the fire extinguishing chamber (102) is 1000 mm;

water is stored in the fire extinguishing cavity (102), and the depth of the water is 600-800 mm;

the side surface of the fire extinguishing cavity (102) is provided with a side door, the height of the side door is higher than the water depth in the fire extinguishing cavity (102), and the fire extinguishing cavity (102) is filled with water through the side door;

the bottom of the box body (1) is provided with a water drain valve (105) communicated with the fire extinguishing cavity (102).

5. The modular cycle testing safety device according to claim 1, wherein the rotating support plate comprises two rotating plates (301);

one side of each rotating plate (301) close to the inner wall of the box body (1) is hinged to the inner wall of the box body (1) through a rotating shaft, and one sides of the two rotating plates (301) far away from the inner wall of the box body (1) are close to each other and are attached to each other;

the switching plate (4) is inserted into the box body (1) from the side surface of the box body (1) and lifts the rotating plate (301) to limit the rotating plate (301) to turn downwards.

6. The module cycle test safety device according to claim 5, wherein the side of the box body (1) is provided with a plug-in interface (401);

the switch board (4) comprises:

an insertion body (402); and

an operation body (403) integrally formed with the insertion body (402);

the plug-in body (402) is embedded into the box body (1) along the horizontal direction through the plug-in port (401) and is supported at the bottom of the rotating plate (301);

the operating body (403) is located outside the case (1).

7. The modular cycle testing safety device according to claim 6, wherein the plug-in body (402) is configured as at least two plug-in rods arranged at intervals in the width direction of the rotating plate (301) or the plug-in body (402) is configured as a plug-in board having a width smaller than the width of the rotating plate (301).