Protective peripheral assembly of battery needling extrusion testing machine

Abstract

The utility model discloses a protective peripheral assembly of a battery needling extrusion testing machine, which belongs to the technical field of battery testing equipment, and comprises a box body, a protective assembly and an exhaust assembly, the protective assembly comprises a protective peripheral piece with an observation window and a protective cover with an exhaust channel, the protective peripheral piece is arranged in the box body, and the protective cover is arranged in the box body. The protective peripheral part and the box body are enclosed to form a test space for placing a battery; the protective cover is connected with the protective peripheral part, and the exhaust channel is connected with the test space; the explosion-proof glass plate is arranged on the observation window; the exhaust assembly comprises a partition plate arranged between the protective peripheral part and the protective cover, an exhaust port and an anti-explosion gas release port which are formed in the partition plate, a check valve assembly arranged at the anti-explosion gas release port, and a fan arranged in the exhaust channel, so that gas in the test space is driven by the fan to be exhausted through the exhaust port and the exhaust channel. According to the utility model, the technical effect of improving the safety is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery test equipment, and particularly relates to a protective peripheral component of a battery needle punching and extrusion testing machine. Background Technique

[0002] The battery needle punching and extrusion test is a safety test method used to simulate the extrusion or needle punching conditions that power lithium batteries may encounter during transportation, storage, and use. In the battery needle punching and extrusion test, a battery needle punching and extrusion test device is used to simulate different conditions that may occur when the battery is subjected to strong external force extrusion. Currently, in the battery test equipment technology, simple metal shells are usually relied on for protection only. However, during the needle punching test and extrusion test of battery monomers, fires and explosions may occur, generating high temperatures, toxic gases, corrosive liquids, and shock waves. It is difficult to release the pressure on the battery pack and evacuate the gas quickly in a timely manner, reduce the pressure, and easily cause personal injuries or mechanical damages.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is the technical problem of poor safety.

[0005] Optionally, to solve the above technical problems, the utility model provides a protective peripheral component of a battery needle punching and extrusion testing machine. The protective peripheral component of the battery needle punching and extrusion testing machine includes: a box body, a protective component, and an exhaust component. The protective component includes a protective outer member with an observation window and a protective cover with an exhaust channel. The protective outer member is arranged on the box body, and the protective outer member and the box body enclose a test space for placing the battery. The protective cover is connected to the protective outer member, and the exhaust channel is connected to the test space. An explosion-proof glass plate is arranged on the observation window. The exhaust component includes a partition arranged between the protective outer member and the protective cover, an exhaust port and an explosion-proof air release port arranged on the partition, a check valve component arranged on the explosion-proof air release port, and a fan arranged on the exhaust channel to drive the gas in the test space to be discharged through the exhaust port and the exhaust channel.

[0006] Optionally, the protective cover includes a cover body and an exhaust pipe connected to the cover body. The fan is arranged on the exhaust pipe, and the cover body is in a conical shape.

[0007] Optionally, the protective peripheral component of the battery needle punching and extrusion testing machine further includes: a spraying device arranged on the partition, and the spraying device is used to spray liquid into the test space.

[0008] Optionally, the exhaust assembly further includes: an air inlet disposed on the partition board. Both the air inlet and the exhaust port are circular, and the diameter of the air inlet is smaller than that of the exhaust port.

[0009] Optionally, the battery needle-punching and extrusion testing machine protective peripheral assembly further includes: a guide rail, a driving assembly, a push block slidably disposed on the guide rail, and a testing head disposed on the push block. The guide rail is disposed in the testing space, and the driving assembly is respectively connected to the box body and the push block to drive the push block to move along the length extension direction of the guide rail through the driving assembly.

[0010] Optionally, the testing head is an extrusion head or a needle-punching head.

[0011] Optionally, the battery needle-punching and extrusion testing machine protective peripheral assembly further includes: an elastic member and a support rod disposed on the box body and located in the testing space. The support rod is parallel to the guide rail; the elastic member is connected to the support rod, and the elastic member is located between the support rod and the push block.

[0012] Optionally, the battery needle-punching and extrusion testing machine protective peripheral assembly further includes: a lifting platform disposed on the box body, and the lifting platform is used for placing the battery to move the battery to be directly opposite to the testing head through the lifting platform.

[0013] Optionally, the battery needle-punching and extrusion testing machine protective peripheral assembly further includes: a temperature measurement module disposed in the testing space.

[0014] Optionally, the battery needle-punching and extrusion testing machine protective peripheral assembly further includes: a control display screen and a foot support respectively disposed on the box body, and the control display screen is connected to the temperature measurement module.

[0015] Beneficial effects:

[0016] The present utility model provides a protective peripheral component for a battery puncture and extrusion testing machine. A testing space for placing a battery is formed by enclosing the protective peripheral member and the box body. The protective cover is connected to the protective peripheral member, and the exhaust channel is connected to the testing space. The explosion-proof glass plate is arranged at the observation window. The partition plate in the exhaust component is arranged between the protective peripheral member and the protective cover. The exhaust port and the explosion-proof air release port are respectively arranged on the partition plate. The check valve component is arranged at the explosion-proof air release port, and the fan is arranged in the exhaust channel to drive the gas inside the testing space to be discharged through the exhaust port and the exhaust channel. In this way, when an abnormal reaction occurs in the battery inside the testing space, such as the generation of toxic gas or high pressure, the fan starts to drive the gas inside the testing space to be discharged through the exhaust port and the exhaust channel; or when the pressure inside the testing space is too high, the check valve component will be opened in time at the explosion-proof air release port for pressure relief to avoid excessive pressure inside the testing space. At the same time, the explosion-proof glass plate at the observation window provides a window for observing the battery, and the protective peripheral member blocks the explosion shock and the splashing of battery core parts or corrosive liquids, thereby realizing the rapid evacuation of the gas inside the testing space, quickly cooling down and isolating the shock wave. Thus, the technical effect of improving safety is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a protective peripheral component for a battery puncture and extrusion testing machine provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0020] In order to enable those skilled in the art of this technology to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0021] In the embodiments of the present application, "at least one" means one or more; "a plurality" means two or more. In the description of the present application, terms such as "first", "second", "third", etc. are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0022] The reference to "an embodiment" or "some embodiments" etc. described in this specification means that in one or more embodiments of the present application, specific features, structures or characteristics described in connection with that embodiment are included. Thus, the terms "comprising", "including", "having" and their variants in this specification all mean "including but not limited to", unless otherwise specifically emphasized in other ways. It should be noted that in the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0023] It should be pointed out that in the embodiments of the present utility model, when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. At the same time, in the embodiments of the present application, "connection" can also be understood as electrical connection, and the connection of two electrical components can be a direct or indirect connection between the two electrical components. For example, when A is connected to B, it can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present utility model are only for illustrative purposes and are not intended to limit the present utility model.

[0024] A protective peripheral component of a battery needle-punching and extrusion testing machine provided by an embodiment of the present utility model, please refer to Figure 1 as shown Figure 1It is a schematic structural diagram of a protective peripheral component of a battery needle-punching and extrusion testing machine provided by an embodiment of the present utility model. A protective peripheral component of a battery needle-punching and extrusion testing machine provided by an embodiment of the present utility model includes a box body 1, a protective component 2 and an exhaust component 3. The protective component 2 includes a protective outer member 21 and a protective cover 22. The protective outer member 21 has an observation window 211, and the protective cover 22 has an exhaust passage 223. The protective outer member 21 is arranged on the box body 1, and the protective outer member 21 and the box body 1 enclose a test space 212 for placing a battery. The protective cover 22 is connected to the protective outer member 21, and the exhaust passage 223 is connected to the test space 212; an explosion-proof glass plate 23 is arranged at the observation window 211. The exhaust component 3 includes a partition plate 31 arranged between the protective outer member 21 and the protective cover 22. An exhaust port 311 and an explosion-proof air release port 312 are respectively arranged on the partition plate 31. A check valve assembly 33 is arranged at the explosion-proof air release port 312, and a fan 32 is arranged in the exhaust passage 223 to drive the gas in the test space 212 to be discharged through the exhaust port 311 and the exhaust passage 223 by the fan 32.

[0025] Among them, the interior of the test space 212 has a space for accommodating the battery. The protective outer member 21 can be made of high-strength and corrosion-resistant materials such as thickened steel plates to ensure that it can resist possible impacts and corrosion during the battery test. The explosion-proof glass plate 23 of the observation window 211 can not only clearly observe the battery state but also prevent debris from splashing when the battery malfunctions. The check valve assembly 33 can include a check valve and glue, and the check valve is fixed to the explosion-proof air release port 312 by the glue. When the pressure in the test space 212 exceeds the set value, the check valve will quickly open to release the pressure, and at the same time, it can prevent external air from entering the test space 212 when not needed. In addition, a sealing door for the battery to enter and exit the test space 212 can be opened on the box body 1. The sealing door is not drawn in Figure 1 but those skilled in the art can understand that in order for the battery to enter and exit the test space 212 through the sealing door, the sealing door can be arranged in the front or side of the box body 1. The sealing door is rotatably arranged on the box body 1. After opening the sealing door and placing the battery on the following lifting table 11 in the test space 212, the sealing door can be closed. The sealing door can be made of steel plates.

[0026] In this embodiment, a test space 212 for placing a battery is formed by enclosing the protective outer member 21 and the box body 1. The protective cover 22 is connected to the protective outer member 21, and the exhaust passage 223 is connected to the test space 212. The explosion-proof glass plate 23 is arranged at the observation window 211. The partition plate 31 in the exhaust assembly 3 is arranged between the protective outer member 21 and the protective cover 22. The exhaust port 311 and the explosion-proof air release port 312 are respectively arranged on the partition plate 31. The check valve assembly 33 is arranged at the explosion-proof air release port 312, and the fan 32 is arranged in the exhaust passage 223 to drive the gas inside the test space 212 to be discharged through the exhaust port 311 and the exhaust passage 223 by the fan 32. In this way, when an abnormal reaction occurs to the battery in the test space 212, such as generating toxic gas or high pressure, the fan 32 starts to drive the gas in the test space 212 to be discharged through the exhaust port 311 and the exhaust passage 223; or when the pressure in the test space 212 is too high, the check valve assembly 33 will be opened in time at the explosion-proof air release port 312 for pressure relief to avoid excessive pressure in the test space 212. At the same time, the explosion-proof glass plate 23 at the observation window 211 provides a window for observing the battery, and the protective outer member 21 blocks the explosion shock and the splashing of the battery cell parts or corrosive liquid, thereby realizing the rapid evacuation of the gas in the test space 212, quickly cooling down and isolating the shock wave. Thus, the technical effect of improving safety is achieved.

[0027] As an implementation manner, the protective cover 22 includes a cover body 221 and an exhaust pipe 222. The exhaust pipe 222 is connected to the cover body 221. The fan 32 is arranged inside the exhaust pipe 222, and the cover body 221 is in a conical shape. The cover body 221 and the exhaust pipe 222 can enclose to form the exhaust passage 223. When an abnormal reaction occurs to the battery in the test space 212, such as generating toxic gas or high pressure, the fan 32 starts to drive the gas in the test space 212 to enter the exhaust pipe 222 through the exhaust port 311 and be accelerated and discharged by the fan 32. The design of the conical cover body 221 is beneficial to the rapid diffusion and discharge of the gas, improving the discharge efficiency of the gas, that is, it can quickly evacuate the gas in the test space 212, effectively avoid the harm of toxic gas or high pressure to the test personnel and equipment, and improve the safety of the test.

[0028] As an implementation manner, a protection peripheral component of a battery needle punching and extrusion testing machine provided by an embodiment of the present utility model further includes a spraying device 4. The spraying device 4 is arranged on the partition plate 31, and the spraying device 4 is used to spray liquid into the interior of the testing space 212. Those skilled in the art can understand that in a protection peripheral component of a battery needle punching and extrusion testing machine provided by an embodiment of the present utility model, the specific structure of the spraying device 4 is not limited, as long as it can realize spraying water into the interior of the testing space 212 for fire extinguishing, cooling or dust removal. That is, when an abnormal reaction occurs to the battery in the testing space 212, the spraying device 4 will be started in time to spray liquid into the testing space 212. The liquid can effectively absorb and neutralize toxic gases and reduce the gas concentration in the testing space 212. At the same time, the liquid spraying can also wash the battery core parts or corrosive liquids, reduce their corrosion to the equipment and the environment, and achieve fire extinguishing, which will improve the safety of the test and protect the testing equipment and the environment.

[0029] In some implementation manners, the exhaust component 3 further includes an air inlet 313. The air inlet 313 is arranged on the partition plate 31. Both the air inlet 313 and the exhaust port 311 are circular. The diameter of the air inlet 313 is smaller than that of the exhaust port 311. The air inlet 313 is always open. During the test, when the gas in the testing space 212 needs to be exhausted, the gas first enters the exhaust passage 223 through the air inlet 313 and then is exhausted through the exhaust port 311. Since the diameter of the air inlet 313 is smaller than that of the exhaust port 311, the flow rate and speed of the gas can be restricted, avoiding the risk caused by the too-fast exhaust of the gas. At the same time, it can improve the safety of the test while ensuring the smooth exhaust of the gas.

[0030] In some implementation manners, a protection peripheral component of a battery needle punching and extrusion testing machine provided by an embodiment of the present utility model further includes a guide rail 5, a push block 6, a driving component 7 and a testing head 8. The guide rail 5 is arranged inside the testing space 212. The push block 6 is slidably arranged on the guide rail 5. The driving component 7 is respectively connected to the box body 1 and the push block 6 to drive the push block 6 to move along the length extension direction of the guide rail 5 through the driving component 7. The testing head 8 is arranged on the push block 6. The driving component 7 includes a motor, that is, the motor is installed on the box body 1, and the push rod of the motor is connected to the push block 6. The motor can push the push block 6 to move towards or away from the battery through the push rod. That is, during the test, the driving component 7 will drive the push block 6 to move along the guide rail 5, so that the testing head 8 contacts the battery and performs needle punching or extrusion testing, realizing the automatic testing of the battery and improving the testing efficiency and accuracy.

[0031] As an implementation manner, the test head 8 is an extrusion head or a needle-piercing head. That is, when a needle-piercing test is required, the needle-piercing head is installed on the push block 6, for example, the needle-piercing head is threadedly connected to the push block 6. When an extrusion test is required, the extrusion head is installed on the push block 6, for example, the extrusion head is threadedly connected to the push block 6. In actual operation, when the test head 8 is an extrusion head, the driving assembly 7 can be used to drive the push block 6 to move along the guide rail 5, so that the extrusion head performs an extrusion test on the battery. When the test head 8 is a needle-piercing head, the driving assembly 7 can be used to drive the push block 6 to move along the guide rail 5, so that the needle-piercing head performs a needle-piercing test on the battery, which can meet different test requirements and improve the flexibility of the test.

[0032] In some implementation manners, the battery needle-piercing and extrusion testing machine protection peripheral assembly provided by the embodiment of the present utility model further includes a support rod 9 and an elastic member 10. The support rod 9 is arranged on the box body 1 and is located in the test space 212. The support rod 9 is parallel to the guide rail 5. The elastic member 10 is connected to the support rod 9, and the elastic member 10 is located between the support rod 9 and the push block 6. The elastic member 10 includes a spring. During the test, when the test head 8 performs a needle-piercing or extrusion test on the battery, the push block 6 will move backward under the reaction force of the battery. At this time, the elastic member 10 will play a buffering role to reduce the impact and damage of the push block 6 on the driving assembly 7. And when the push block 6 is subjected to the elastic force of the elastic member 10, the thrust of the elastic member 10 received by the push block 6 can also be collected through a pressure sensor arranged on the push rod of the motor and fed back to the motor in time, so that the motor stops working when the push block 6 moves close to the elastic member 10, which can improve the reliability and stability of the test.

[0033] In some implementation manners, the battery needle-piercing and extrusion testing machine protection peripheral assembly provided by the embodiment of the present utility model further includes a lifting platform 11. The lifting platform 11 is arranged on the box body 1. The lifting platform 11 is used to place the battery so as to move the battery to be directly opposite to the test head 8 through the lifting platform 11. Those skilled in the art can understand that in the battery needle-piercing and extrusion testing machine protection peripheral assembly provided by the embodiment of the present utility model, no specific limitation is imposed on the specific structure of the lifting platform 11, as long as it can be realized that before the test, the battery can be moved to a position directly opposite to the test head 8 through the lifting platform 11. Then, the driving assembly 7 is used to drive the push block 6 to move along the guide rail 5, so that the test head 8 contacts the battery and performs a test, which can conveniently test batteries of different heights, thereby improving the flexibility and convenience of the test.

[0034] In some embodiments, the protective peripheral component of the battery acupuncture and extrusion testing machine provided by the embodiments of the present utility model further includes a temperature measurement module 14, and the temperature measurement module 14 is arranged inside the test space 212. The temperature measurement module 14 may include a temperature sensor, and the temperature sensor is used to collect the temperature information inside the test space 212. During the battery acupuncture and extrusion test, the battery may generate high temperature due to internal short circuit, overcharging and other reasons, which may lead to dangerous situations such as explosion or fire. Through the temperature measurement module 14, the temperature data inside the test space 212 can be obtained in real time, and these data are processed and analyzed through the control system. When the temperature exceeds the preset safety threshold, the control system will immediately activate corresponding safety measures, such as starting the spraying device 4, etc., to minimize the danger. In addition, the temperature measurement module 14 can also be linked with the fan 32 in the exhaust component 3 for control. When the temperature inside the test space 212 rises abnormally, the fan 32 can automatically increase the rotation speed, improve the exhaust efficiency, and accelerate the discharge speed of the gas inside the test space 212, effectively improving the safety and reliability of the test.

[0035] As an implementation manner, the protective peripheral component of the battery acupuncture and extrusion testing machine provided by the embodiments of the present utility model further includes a control display screen 12 and a foot support 13. The control display screen 12 and the foot support 13 are respectively arranged on the box body 1. The foot support 13 may be located at the bottom of the box body 1, and the control display screen 12 is convenient for the operator to view. The control display screen 12 is connected to the above-mentioned temperature measurement module 14. Through the control display screen 12, the operator can understand the temperature and other information during the test in real time, and perform corresponding operations and adjustments as needed. For example, when the temperature inside the test space 212 rises abnormally, the operator can start the spraying device 4, adjust the rotation speed of the fan 32, etc. through the operation interface on the control display screen 12 to quickly reduce the temperature and control the danger. At the same time, the foot support 13 can ensure the stability and safety of the box body 1 during the test. In addition, the height and position of the foot support 13 can be adjusted to keep the box body 1 horizontal and fixed on the ground, avoiding safety accidents caused by the shaking or tilting of the box body 1.

[0036] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A protective peripheral component for a battery puncture extrusion tester, characterized in that: The protective peripheral component of the battery needle puncture extrusion tester includes: a box body, a protective component and an exhaust component, the protective component includes a protective peripheral part with an observation window and a protective cover with an exhaust channel, the protective peripheral part is arranged on the box body, and the protective peripheral part and the box body are enclosed to form a test space for placing batteries; the protective cover is connected to the protective peripheral part, and the exhaust channel is connected to the test space; an explosion-proof glass plate is arranged on the observation window; the exhaust component includes a partition plate arranged between the protective peripheral part and the protective cover, an exhaust port and an explosion-proof vent arranged on the partition plate, a check valve component arranged on the explosion-proof vent, and a fan arranged on the exhaust channel, so that the gas in the test space is driven by the fan to be discharged through the exhaust port and the exhaust channel.

2. The protective peripheral component of the battery needle puncture extrusion tester according to claim 1 is characterized in that: The protective cover comprises a cover body and an exhaust pipe connected to the cover body, the fan is arranged on the exhaust pipe, and the cover body is conical.

3. The protective peripheral component of the battery needle puncture extrusion tester according to claim 1, characterized in that: The battery needle puncture extrusion test machine protective peripheral assembly also includes: a spray device, the spray device is arranged on the partition, and the spray device is used to spray liquid into the test space.

4. The protective peripheral component of the battery needle puncture extrusion tester according to claim 1, characterized in that: The exhaust assembly further includes: an air inlet disposed on the partition, the air inlet and the exhaust port are both circular, and the diameter of the air inlet is smaller than the diameter of the exhaust port.

5. The protective peripheral component of the battery needle puncture extrusion tester according to claim 1, characterized in that: The battery puncture extrusion test machine protective peripheral components also include: a guide rail, a driving component, a push block slidably arranged on the guide rail, and a test head arranged on the push block. The guide rail is arranged in the test space, and the driving component is respectively connected to the box and the push block to drive the push block to move along the length extension direction of the guide rail through the driving component.

6. The protective peripheral component of the battery needle puncture extrusion tester according to claim 5, characterized in that: The test head is an extrusion head or a needle puncture head.

7. The protective peripheral component of the battery needle puncture extrusion tester according to claim 5, characterized in that: The battery puncture extrusion test machine protective peripheral assembly also includes: an elastic member and a support rod arranged on the box and located in the test space, the support rod is parallel to the guide rail; the elastic member is connected to the support rod, and the elastic member is located between the support rod and the push block.

8. The protective peripheral component of the battery needle puncture extrusion tester according to claim 5, characterized in that: The battery needle puncture compression test machine protective peripheral assembly also includes: a lifting platform arranged on the box body, the lifting platform is used to place the battery, so that the battery is moved to face the test head through the lifting platform.

9. The protective peripheral component of the battery needle puncture extrusion tester according to claim 1, characterized in that: The battery puncture extrusion test machine protective peripheral components also include: a temperature measurement module arranged in the test space.

10. The protective peripheral component of the battery needle puncture extrusion tester according to claim 9, characterized in that: The battery puncture extrusion test machine protective peripheral components also include: a control display screen and a foot support respectively arranged on the box body, and the control display screen is connected to the temperature measurement module.

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