Gradually-rising type battery upper cover flame-retardant testing device

Abstract

The utility model relates to the technical field of flame-retardant testing devices, in particular to a gradually-rising type battery upper cover flame-retardant testing device which comprises a flame-retardant testing box, a working cavity and an accessory cavity are sequentially formed in the flame-retardant testing box, a battery upper cover placing plate is arranged in the working cavity, a gradually-rising assembly is arranged on one side of the battery upper cover placing plate, and the gradually-rising assembly is arranged on the other side of the battery upper cover placing plate. A flame-retardant test assembly is arranged on the other side of the battery upper cover placement plate; and the gradual lifting assembly is used for intermittently lifting the battery upper cover placing plate. According to the utility model, the gradually rising assembly is arranged to intermittently rise the battery upper cover so as to change different temperatures for the flame-retardant test of the battery upper cover, so that one test temperature can be used as a plurality of test temperatures to carry out the flame-retardant test on the battery upper cover; in this way, the time required by the flame-retardant test of the battery upper cover by regulating and controlling different temperatures can be saved, so that the flame-retardant test efficiency of the battery upper cover can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardant testing devices, in particular to a gradually increasing type flame retardant testing device for a battery upper cover. Background Technique

[0002] A battery refers to a cup, trough or other container or partial space of a composite container filled with an electrolyte solution and metal electrodes to generate current, and is a device that can convert chemical energy into electrical energy. A battery usually consists of a battery upper cover and lower cover, a positive electrode (active substance, generally lithium cobalt oxide), a separator (a special composite film), a negative electrode (active substance, generally carbon), an organic electrolyte, and a battery case.

[0003] During the production process of a battery upper cover, a flame retardant testing device is usually used to detect the flame retardancy of the battery upper cover. The tests for the flame retardancy of the battery upper cover include:

[0004] 1. Vertical burning test method: Vertically place the specimen on the burning device, ignite the lower end of the specimen, observe the burning condition of the specimen, and record the burning time and burning length.

[0005] 2. Oxygen index test method: Place the specimen in a burning device with an oxygen concentration of 21%, ignite one end of the specimen, observe the burning condition of the specimen, record the burning time and length of the specimen, and calculate the oxygen index of the specimen.

[0006] 3. Gas analysis test method: Place the specimen in a burning device, ignite one end of the specimen, measure the types and concentrations of gases generated during the burning of the specimen through a gas analyzer, and judge the flame retardant performance of the specimen.

[0007] When the vertical burning test method is used for the battery upper cover, the battery upper cover is usually burned and detected by setting a theoretically appropriate temperature flame. Although this method is simple, the effect of the theoretically appropriate temperature flame on the battery upper cover is not good. At this time, it is necessary to set flame temperatures at different temperatures to detect the burning of the battery upper cover. Since the regulation of the flame temperature involves complex system editing, and the adjustment of the temperature requires the detection of the battery upper cover to be stagnant for a period of time to complete the regulation of the flame temperature, this will affect the detection efficiency of the battery upper cover. Summary of the Invention

[0008] The purpose of the utility model is to provide a gradually increasing type flame retardant testing device for a battery upper cover to solve the problems raised in the above background technique.

[0009] To achieve the above purpose, the utility model provides the following technical solutions:

[0010] A gradually rising flame retardant test device for the battery upper cover, comprising a flame retardant test box, in which a working chamber and a fitting chamber are successively arranged. A battery upper cover placing plate is arranged in the working chamber. One side of the battery upper cover placing plate is provided with a gradually rising component, and the other side of the battery upper cover placing plate is provided with a flame retardant test component. The gradually rising component is used for intermittently raising the battery upper cover placing plate, and the flame retardant test component is used for heating the battery upper cover placed on the battery upper cover placing plate.

[0011] A gradually rising flame retardant test device for the battery upper cover as described above: The gradually rising component includes a first connecting plate connected to the battery upper cover placing plate. First sliders are arranged at both ends of the first connecting plate. First guide rails are slidably arranged on the first sliders. A fixed block is slidably arranged on the first connecting plate. A guide plate is slidably arranged on the fixed block. Second sliders are arranged at both ends of the guide plate. Second guide rails are slidably arranged on the second sliders. An electric telescopic device is arranged on the fixed block. One end of the electric telescopic device is slidably arranged on a third guide rail. The first guide rail, the second guide rail and the third guide rail are all arranged in the working chamber. A guiding component is arranged on one side of the gradually rising component.

[0012] A gradually rising flame retardant test device for the battery upper cover as described above: The guiding component includes a guiding groove and a stroke groove opened on the inner wall surface of the working chamber. The guiding groove is parallel to the inner bottom end of the working chamber. Both ends of the stroke groove are communicated with both ends of two adjacent guiding grooves. A guiding slide bar is slidably arranged in the guiding groove. One end of the guiding slide bar is provided with a fixing plate, and the fixing plate is connected to the fixed block. A moving component is arranged below the guiding component.

[0013] A gradually rising flame retardant test device for the battery upper cover as described above: The moving component includes two transmission parts rotatably arranged in the working chamber. The two transmission parts are connected by a belt. A servo motor is arranged on one side of the two transmission parts. The output end of the servo motor is butted against one transmission part. A fixed rod is arranged on the belt. A second connecting plate is arranged on one side of the belt. A notch is opened on the second connecting plate. The fixed rod is slidably arranged in the notch. One end of the second connecting plate is connected to the fixed block. A fourth slider is fixedly arranged on the second connecting plate. A sliding groove is opened in the working chamber. The fourth slider is slidably arranged in the sliding groove.

[0014] A gradually rising flame retardant test device for the battery upper cover as described above: A third slider is slidably arranged on the third guide rail. One end of the electric telescopic device is connected to the third slider on the third guide rail. A control module is arranged on the third slider. The control module is electrically connected to the electric telescopic device.

[0015] An ascending battery cover flame retardancy test device as described above: The flame retardancy test component includes a sliding base disposed in the working chamber, a sliding block slidably disposed on the sliding base, a flame sprayer disposed on the sliding block, and a rotating component disposed in the accessory chamber.

[0016] An ascending battery cover flame retardancy test device as described above: The rotating component includes a driving motor disposed in the accessory chamber, a rotating disk disposed at the output end of the driving motor, the rotating disk is rotatably connected in the working chamber, and one end of the sliding base is connected to the rotating disk.

[0017] An ascending battery cover flame retardancy test device as described above: A protective door is rotatably disposed in the working chamber and the accessory chamber respectively through hinges, a combustion gas connection pipe is disposed on the flame retardancy test box, a blower is disposed at the top of the flame retardancy test box, the blower communicates with the working chamber, and a hand-reaching window is disposed on the protective door in the working chamber.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] Through the setting of the ascending component, the battery cover can be intermittently raised to change the different temperatures of the battery cover flame retardancy test, so that one test temperature can be regarded as multiple test temperatures to conduct the flame retardancy test on the battery cover. In this way, the time required to adjust different temperatures for the battery cover flame retardancy test can be saved, and thus the efficiency of the battery cover flame retardancy test can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an ascending battery cover flame retardancy test device.

[0021] Figure 2 It is a schematic diagram of the overall internal structure of the working chamber of an ascending battery cover flame retardancy test device.

[0022] Figure 3 It is a first perspective cross-sectional view of the flame retardancy test box of an ascending battery cover flame retardancy test device.

[0023] Figure 4 It is a second perspective cross-sectional view of the flame retardancy test box of an ascending battery cover flame retardancy test device.

[0024] Figure 5 It is a three-dimensional view of the ascending component of an ascending battery cover flame retardancy test device.

[0025] Figure 6 It is for an ascending battery cover flame retardancy test device Figure 3 Enlarged view at A in

[0026] Figure 7Explosion diagram of the first connecting plate and the fixed block of a gradually rising flame retardant test device for a battery upper cover.

[0027] In the figure: 1, flame retardant test box; 2, working chamber; 3, accessory chamber; 4, battery upper cover placement plate; 5, first connecting plate; 6, first slider; 7, first guide rail; 8, fixed block; 9, guide plate; 10, second slider; 11, second guide rail; 12, electric telescopic device; 13, third guide rail; 14, travel groove; 15, guide slide bar; 16, fixed plate; 17, transmission part; 18, servo motor; 19, fixed rod; 20, second connecting plate; 21, third slider; 22, control module; 23, sliding base; 24, sliding block; 25, flame sprayer; 26, drive motor; 27, rotating disk; 28, protective door; 29, combustion gas connection pipe; 30, fan; 31, hand-reaching window; 32, guide groove; 33, fourth slider; 34, chute. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Please refer to Figures 1 to 7 , as an embodiment of the present invention, the gradually rising flame retardant test device for a battery upper cover includes a flame retardant test box 1. A working chamber 2 and an accessory chamber 3 are sequentially opened in the flame retardant test box 1. A battery upper cover placement plate 4 is arranged in the working chamber 2. A gradually rising component is arranged on one side of the battery upper cover placement plate 4, and a flame retardant test component is arranged on the other side of the battery upper cover placement plate 4; the gradually rising component is used to intermittently raise the battery upper cover placement plate 4, and the flame retardant test component is used to heat the battery upper cover placed on the battery upper cover placement plate 4.

[0030] In this embodiment, first place the battery upper cover on the battery upper cover placement plate 4, and then start the flame retardant test component, so that the flame temperature of the flame retardant test component is controlled at the specified test temperature. At this time, the inner flame of the flame conducts a combustion test on the battery upper cover. When the flame retardant test component is started, the gradual rise component is also started. The start of the gradual rise component pushes the battery upper cover on the battery upper cover placement plate 4 to rise intermittently. With each rise of the battery upper cover, the battery upper cover gets closer to the outer flame of the combustion flame of the flame retardant test component. At this time, the temperature of the battery upper cover under the test increases accordingly. When the battery upper cover rises to the outer flame of the combustion flame of the combustion test component, the temperature of the battery upper cover under the test reaches the maximum value. Through the setting of the gradual rise component, the battery upper cover can be made to rise intermittently to change the different temperatures of the flame retardant test of the battery upper cover, so that one test temperature can be regarded as multiple test temperatures to conduct the flame retardant test on the battery upper cover. In this way, the time required to regulate different temperatures for the flame retardant test of the battery upper cover can be saved, and thus the efficiency of the flame retardant test of the battery upper cover can be effectively improved.

[0031] As a further solution of the present invention, the gradual rise component includes a first connecting plate 5 connected to the battery upper cover placement plate 4. First sliders 6 are provided at both ends of the first connecting plate 5. First guide rails 7 are slidably provided on the first sliders 6. A fixed block 8 is slidably provided on the first connecting plate 5. A guide plate 9 is slidably provided on the fixed block 8. Second sliders 10 are provided at both ends of the guide plate 9. Second guide rails 11 are slidably provided on the second sliders 10. An electric telescopic device 12 is provided on the fixed block 8. A third guide rail 13 is slidably provided at one end of the electric telescopic device 12. The first guide rail 7, the second guide rail 11, and the third guide rail 13 are all provided in the working chamber 2. A guide component is provided on one side of the gradual rise component.

[0032] In this embodiment, first push the fixed block 8 uniformly along the guide component. The movement of the fixed block 8 will intermittently rise along the first guide rail 7 under the guiding action of the guide component. The rise of the fixed block 8 drives the battery upper cover on the battery upper cover placement plate 4 to rise. The battery upper cover on the battery upper cover placement plate 4 will stay at that height for a period of time every time it rises a certain distance. Every time the battery upper cover on the battery upper cover placement plate 4 rises a certain distance, the heating temperature of the flame retardant test component for the battery upper cover will increase until the battery upper cover rises to the highest point and the heating temperature of the flame retardant test component for the battery upper cover is the highest. Then record the flame retardant test results of the battery upper cover at different temperatures.

[0033] The arrangement of the guide plate 9, the second slider 10, and the second guide rail 11 plays a guiding role in the horizontal sliding of the fixed block 8, while the arrangement of the first connecting plate 5, the first slider 6, and the first guide rail 7 plays a guiding role in the vertical sliding of the fixed block 8, and intermittently raises the battery upper cover on the battery upper cover placement plate 4 in the vertical direction.

[0034] As a further solution of the present invention, the guiding assembly includes a guiding groove 32 and a stroke groove 14 formed on the inner wall surface of the working chamber 2. The guiding groove 32 is parallel to the inner bottom end of the working chamber 2. Both ends of the stroke groove 14 are connected to both ends of two adjacent guiding grooves 32. A guiding slide rod 15 is slidably arranged in the guiding groove 32. One end of the guiding slide rod 15 is provided with a fixing plate 16, and the fixing plate 16 is connected to the fixed block 8. A moving assembly is arranged below the guiding assembly.

[0035] In this embodiment, during the movement of the fixed block 8, it drives the fixing plate 16 to move. The movement of the fixing plate 16 drives the guiding slide rod 15 to slide in the guiding groove 32. When the guiding slide rod 15 in the guiding groove 32 moves to the junction of the guiding groove 32 and the stroke groove 14, the slide rod 15 slides into the stroke groove 14 for sliding. The sliding of the slide rod 15 in the stroke groove 14 drives the fixed block 8 to rise. The rise of the fixed block 8 drives the battery upper cover on the battery upper cover placement plate 4 to rise. When the slide rod 15 in the stroke groove 14 moves to the junction of the stroke groove 14 and another guiding groove 32, the slide rod 15 slides into another guiding groove 32 for sliding. At this time, the battery upper cover on the battery upper cover placement plate 4 stops rising. This process is repeated in sequence until the slide rod 15 slides into the highest guiding groove 32 and the battery upper cover on the battery upper cover placement plate 4 moves to the highest point of the stroke. At this time, the flame retardant test component tests the highest temperature of the test flame for the battery upper cover.

[0036] Through the arrangement of the guiding assembly, the fixed block 8 can be guided to move along the guiding groove 32 and the stroke groove 14. When moving in the guiding groove 32 and the stroke groove 14, the battery upper cover placement plate 4 can maintain the current height and increase the height of the battery upper cover placement plate 4 respectively, so that the battery upper cover placement plate 4 can be intermittently raised.

[0037] As a further solution of the present utility model, the moving component includes two transmission members 17 rotatably arranged in the working chamber 2. The two transmission members 17 are connected by a belt. One side of the two transmission members 17 is provided with a servo motor 18. The output end of the servo motor 18 is docked with one transmission member 17. A fixing rod 19 is arranged on the belt. One side of the belt is provided with a second connecting plate 20. A notch is formed on the second connecting plate 20. The fixing rod 19 is slidably arranged in the notch. One end of the second connecting plate 20 is connected to the fixing block 8. A fourth slider 33 is fixedly arranged on the second connecting plate 20. A sliding groove 34 is formed in the working chamber 2. The fourth slider 33 is slidably arranged in the sliding groove 34.

[0038] In this embodiment, when it is necessary to push the fixing block 8 to move, the servo motor 18 is started. The start of the servo motor 18 drives the transmission member 17 docked with it to rotate. The transmission member 17 drives the other transmission member 17 to rotate through the belt. At this time, both the two transmission members 17 and the belt between the two transmission members 17 rotate. During the rotation of the belt, the fixing rod 19 on the belt is driven to move. The movement of the fixing rod 19 will push the second connecting plate 20 to move in the notch on the second connecting plate 20. The movement of the second connecting plate 20 drives the fixing block 8 to move. When the fixing rod 19 moves to the maximum value of the horizontal stroke of the belt, the fixing rod 19 will drive the fixing block 8 to move in the reverse direction. When the fixing rod 19 moves to the minimum value of the horizontal stroke of the belt, the fixing rod 19 will drive the fixing block 8 to move in the reverse direction, and so on. Through the setting of the moving component, not only can kinetic energy be provided for the movement of the fixing block 8, but also the fixing block 8 can move horizontally repeatedly. In this way, the uniform operation of the servo motor 18 can realize the uniform and repeated horizontal movement of the fixing block 8.

[0039] As a further solution of the present utility model, a third slider 21 is slidably arranged on the third guide rail 13. One end of the electric telescopic device 12 is connected to the third slider 21 on the third guide rail 13. A control module 22 is arranged on the third slider 21. The control module 22 is electrically connected to the electric telescopic device 12.

[0040] In this embodiment, when the guiding slide bar 15 slides within the guiding groove 32, the control module 22 controls the electric telescopic device 12 to stop operating. When the slide bar 15 slides into the stroke groove 14, the control module 22 applies an upward pulling force through the electric telescopic device 12, enabling the slide bar 15 to slide at the junction of the guiding groove 32 and the stroke groove 14 and within the stroke groove 14. When the slide bar 15 within the stroke groove 14 moves to another guiding groove 32 from the stroke groove 14, the control module 22 controls the electric telescopic device 12 to stop telescoping, allowing the slide bar 15 to slide within the guiding groove 32. Through the setting of the control module 22, the electric telescopic device 12 can apply an upward force during the sliding process of the slide bar 15 within the stroke groove 14, enabling the slide bar 15 to drive the battery upper cover on the battery upper cover placement plate 4 to move upward under the guidance of the stroke groove 14.

[0041] As a further aspect of the present utility model, the flame retardancy test assembly includes a sliding base 23 disposed within the working chamber 2. A sliding block 24 is slidably arranged on the sliding base 23, and a flame sprayer 25 is provided on the sliding block 24. A rotating assembly is disposed within the accessory chamber 3.

[0042] In this embodiment, when a flame retardancy test needs to be performed on the battery upper cover on the battery upper cover placement plate 4, the flame sprayer 25 on the sliding base 23 is slid to the lower side of the battery upper cover, and then the flame sprayer 25 is started. When the flame sprayer 25 is started, it sprays flames, and the battery upper cover on the battery upper cover placement plate 4 is located within the inner flame of the flames sprayed by the flame sprayer 25. Through the setting of the sliding base 23 and the sliding block 24, the flame sprayer 25 can be horizontally moved, enabling the flame sprayer 25 to adjust the position of spraying flames on the battery upper cover according to how much the battery upper cover extends outside the battery upper cover placement plate 4.

[0043] As a further aspect of the present utility model, the rotating assembly includes a driving motor 26 disposed within the accessory chamber 3. A rotating disk 27 is provided at the output end of the driving motor 26. The rotating disk 27 is rotatably connected within the working chamber 2, and one end of the sliding base 23 is connected to the rotating disk 27.

[0044] In this embodiment, when the battery upper cover placement plate 4 rises to the highest point and the flame retardancy test of the battery upper cover is completed, the driving motor 26 is started. The start of the driving motor 26 drives the rotating disk 27 to rotate. When the rotating disk 27 rotates 180 degrees, the flame sprayer 25 is located above the battery upper cover, and the battery upper cover is located within the inner flame of the flames sprayed by the flame sprayer 25. According to the above reverse operation, the battery upper cover on the battery upper cover placement plate 4 is moved downward, enabling the battery upper cover placement plate 4 to complete the flame retardancy test on the reverse side of the battery upper cover.

[0045] The rotation component is provided to enable the flamethrower 25 to rotate, so that both the front and back sides of the battery upper cover can be subjected to the flame retardancy test, making the flame retardancy test of the battery upper cover more sufficient.

[0046] As a further solution of the present utility model, protective doors 28 are respectively rotatably provided in the working chamber 2 and the accessory chamber 3 through hinges. A combustion gas connection pipe 29 is provided on the flame retardancy test box 1. A fan 30 is provided at the top of the flame retardancy test box 1. The fan 30 communicates with the working chamber 2. A hand-reaching window 31 is provided on the protective door 28 in the working chamber 2. The combustion gas connection pipe 29 is provided to facilitate the delivery of combustion gas to the flamethrower 25. The fan 30 is provided to facilitate the discharge of the gas in the flame retardancy test box 1 after the test, preventing the gas in the flame retardancy test box 1 from affecting the test of the next battery upper cover. The hand-reaching window 31 is provided to facilitate the staff to reach into the flame retardancy test box 1 to perform the flame retardancy test operation.

[0047] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A rising-type flame retardant test device for a battery upper cover, comprising a flame retardant test chamber (1), characterized in that, The flame retardant test chamber (1) is successively provided with a working chamber (2) and a fitting chamber (3) inside. A battery upper cover placement plate (4) is arranged in the working chamber (2). An ascending component is arranged on one side of the battery upper cover placement plate (4), and a flame retardant test component is arranged on the other side of the battery upper cover placement plate (4); the ascending component is used for intermittently raising the battery upper cover placement plate (4), and the flame retardant test component is used for heating the battery upper cover placed on the battery upper cover placement plate (4).

2. The gradually ascending type battery upper cover flame retardancy test device according to claim 1, wherein, The ascending component includes a first connecting plate (5) connected to the battery upper cover placement plate (4). First sliders (6) are arranged at both ends of the first connecting plate (5). First guide rails (7) are slidably arranged on the first sliders (6). A fixed block (8) is slidably arranged on the first connecting plate (5). A guide plate (9) is slidably arranged on the fixed block (8). Second sliders (10) are arranged at both ends of the guide plate (9). Second guide rails (11) are slidably arranged on the second sliders (10). An electric telescopic device (12) is arranged on the fixed block (8). One end of the electric telescopic device (12) is slidably arranged on a third guide rail (13). The first guide rail (7), the second guide rail (11), and the third guide rail (13) are all arranged in the working chamber (2). A guiding component is arranged on one side of the ascending component.

3. The ascending battery cover flame retardancy test device according to claim 2, characterized in that, The guiding component includes a guiding groove (32) and a travel groove (14) opened on the inner wall surface of the working chamber (2). The guiding groove (32) is parallel to the inner bottom end of the working chamber (2). Both ends of the travel groove (14) are communicated with both ends of two adjacent guiding grooves (32). A guiding slide bar (15) is slidably arranged in the guiding groove (32). One end of the guiding slide bar (15) is provided with a fixing plate (16). The fixing plate (16) is connected to the fixed block (8). A moving component is arranged below the guiding component.

4. The ascending battery cover flame retardancy test device according to claim 3, characterized in that, The moving component includes two transmission parts (17) rotatably arranged in the working chamber (2). The two transmission parts (17) are connected by a belt. A servo motor (18) is arranged on one side of the two transmission parts (17). The output end of the servo motor (18) is butted against one transmission part (17). A fixed rod (19) is arranged on the belt. A second connecting plate (20) is arranged on one side of the belt. A notch is opened on the second connecting plate (20). The fixed rod (19) is slidably arranged in the notch. One end of the second connecting plate (20) is connected to the fixed block (8). A fourth slider (33) is fixedly arranged on the second connecting plate (20). A chute (34) is opened in the working chamber (2). The fourth slider (33) is slidably arranged in the chute (34).

5. The flame retardancy test device for the gradually ascending battery upper cover according to claim 2, characterized in that, A third slider (21) is slidably arranged on the third guide rail (13). One end of the electric telescopic device (12) is connected to the third slider (21) on the third guide rail (13). A control module (22) is arranged on the third slider (21). The control module (22) is electrically connected to the electric telescopic device (12).

6. The flame retardant test device for the gradually ascending battery upper cover according to claim 1, wherein, The flame retardancy test assembly includes a sliding base (23) disposed in the working chamber (2), a sliding block (24) slidably disposed on the sliding base (23), a flame sprayer (25) disposed on the sliding block (24), and a rotating assembly disposed in the accessory chamber (3).

7. The flame retardant test device for the gradually ascending battery upper cover according to claim 6, characterized in that, The rotating assembly includes a driving motor (26) disposed in the accessory chamber (3), a rotating disk (27) disposed at the output end of the driving motor (26), the rotating disk (27) is rotatably connected in the working chamber (2), and one end of the sliding base (23) is connected to the rotating disk (27).

8. The flame retardant test device for the gradually ascending battery upper cover according to claim 1, characterized in that, A protective door (28) is rotatably disposed in the working chamber (2) and the accessory chamber (3) respectively through hinges, a combustion gas connection pipe (29) is disposed on the flame retardancy test box (1), a blower (30) is disposed at the top of the flame retardancy test box (1), the blower (30) communicates with the working chamber (2), and a hand-reaching window (31) is disposed on the protective door (28) in the working chamber (2).

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