Breathability detection device for battery separator material
By introducing a fan, heating wire, and air pressure sensor into the battery separator material permeability testing device, the problem of slow gas flow at low temperatures was solved, enabling rapid and accurate permeability testing and improving testing efficiency and accuracy.
Patent Information
- Application Number
- CN202423301789.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing battery separator material permeability testing devices cannot quickly test the permeability of materials under low-temperature conditions, resulting in slow gas flow and affecting testing efficiency.
A detection device including a fan, heating wire, air pressure sensor and clamping device was designed. The fan draws in air, filters it, heats it and diffuses it, and the air pressure sensor detects the air pressure to achieve rapid detection of the material's air permeability.
It enables rapid and accurate detection of the air permeability of battery separator materials under low-temperature conditions, improving detection efficiency and accuracy.
Smart Images

Figure CN223897281U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery processing technology, specifically to a device for testing the air permeability of battery separator materials. Background Technology
[0002] A battery is a device that converts chemical energy into electrical energy. It contains an electrolyte solution and metal electrodes, forming a cup, tank, or other container or composite container that generates an electric current. It has a positive and a negative electrode. With technological advancements, the term "battery" now generally refers to any small device that generates electrical energy, such as a solar cell. The main performance parameters of a battery include electromotive force, capacity, specific energy, and resistance. Using batteries as an energy source provides a stable voltage, stable current, long-term stable power supply, and minimal susceptibility to external influences. Batteries are simple in structure, portable, easy to charge and discharge, unaffected by external climate and temperature, and offer stable and reliable performance. They play a significant role in various aspects of modern life. During the processing of battery separators, testing devices are needed to check the permeability of the separator materials.
[0003] However, existing testing devices cannot heat the material, resulting in slow internal gas flow due to low temperatures. This prevents the gas from quickly passing through the material for testing. To address this, we propose a device for testing the permeability of battery separator materials. Utility Model Content
[0004] The purpose of this invention is to provide a device for testing the air permeability of battery separator materials, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery separator material air permeability testing device, comprising a base plate, a testing chamber fixedly connected to the middle of the top of the base plate, a pressure sensor fixedly connected to the middle of the bottom of the inner cavity of the testing chamber by bolts, an air filter fixedly connected to the left side of the testing chamber, an air filter screen fixedly connected to the left side of the inner cavity of the air filter, a heating wire provided on the right side of the inner cavity of the air filter, a fan fixedly installed on the top of the air filter, an exhaust hood fixedly connected to the output end of the fan by a corrugated pipe, a movable door fixedly connected to the inner side of the exhaust hood, a housing fixedly connected to the inner side of the movable door, a motor fixedly installed in the inner cavity of the housing, a fan blade fixedly connected to the output end of the motor, one side of the movable door connected to the left side of the top of the testing chamber by a hinge, and a sealing ring provided at the connection between the testing chamber and the movable door.
[0006] Preferably, a PLC controller is fixedly installed on the top right side of the detection box by bolts, and control buttons are fixedly connected to the surface of the PLC controller by bolts.
[0007] Preferably, a temperature sensor is fixedly connected to the upper end of the inner side of the movable door by bolts, and a display is fixedly connected to the lower end of the outer side of the movable door. The input terminal of the display is unidirectionally electrically connected to the output terminals of the temperature sensor and the air pressure sensor.
[0008] Preferably, a battery box is fixedly connected to the bottom right side of the detection box by bolts, and a storage battery is fixedly connected to the inner cavity of the battery box by bolts. A charging port is provided at the middle of one side of the battery box, and the output end of the charging port is unidirectionally electrically connected to the input end of the storage battery.
[0009] Preferably, an electric telescopic rod is fixedly installed on the upper ends of both sides of the detection box by bolts, and a clamping plate is fixedly connected to the output end of the electric telescopic rod. A clamping groove is provided on the inner side of the clamping plate.
[0010] Preferably, a handle is fixedly connected to the upper end of the front of the movable door, and a protective cover is provided on the surface of the handle.
[0011] Preferably, support legs are fixedly connected to both the left and right sides of the bottom of the base plate, and anti-slip pads are provided on the bottom of the support legs.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model starts by drawing air into the inner cavity of the air filter through a fan, filters impurities in the air through an air filter screen, heats the filtered air through a heating wire, and discharges the heated air through an exhaust hood. The motor is also started, which drives the fan blades to rotate, allowing the gas to diffuse evenly and preventing local temperatures from being too low or too high. The heated air moves rapidly to perform a penetration test on the air tightness of the material. The air pressure is detected by a pressure sensor to measure the air permeability of the material.
[0014] 2. This utility model places the material to be tested inside the clamping groove and starts working by activating the electric telescopic rod. The electric telescopic rod drives the clamping plate to move inward to clamp and fix the material to be tested. The temperature sensor can detect the temperature of the gas being tested, and the display can show the test data for easy viewing by the testing personnel. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the air filter structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the air pressure sensor of this utility model.
[0018] In the diagram: 1. Base plate; 2. Detection box; 3. Electric telescopic rod; 4. Clamping slot; 5. Clamping plate; 6. Charging port; 7. Battery; 8. Battery box; 9. PLC controller; 10. Fan blade; 11. Motor; 12. Temperature sensor; 13. Exhaust hood; 14. Outer shell; 15. Movable door; 16. Air filter; 17. Fan; 18. Air filter screen; 19. Display; 20. Handle; 21. Air pressure sensor; 22. Heating wire. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1:
[0021] Please see Figures 1-3 The following technical solution is provided, specifically disclosing: a battery separator material air permeability testing device, including a base plate 1, a testing chamber 2 fixedly connected to the middle of the top of the base plate 1, a pressure sensor 21 fixedly connected to the middle of the bottom of the inner cavity of the testing chamber 2 by bolts, an air filter 16 fixedly connected to the left side of the testing chamber 2, an air filter screen 18 fixedly connected to the left side of the inner cavity of the air filter 16, a heating wire 22 provided on the right side of the inner cavity of the air filter 16, a fan 17 fixedly installed on the top of the air filter 16, an exhaust hood 13 fixedly connected to the output end of the fan 17 by a corrugated pipe, a movable door 15 fixedly connected to the inner side of the exhaust hood 13, a housing 14 fixedly connected to the inner side of the movable door 15, a motor 11 fixedly installed in the inner cavity of the housing 14, a fan blade 10 fixedly connected to the output end of the motor 11, one side of the movable door 15 connected to the left side of the top of the testing chamber 2 by a hinge, and a sealing ring provided at the connection between the testing chamber 2 and the movable door 15.
[0022] In actual use, the fan 17 is started to draw air into the inner cavity of the air filter 16. The air filter 18 filters impurities in the air. The filtered air is heated by the heating wire 22 and discharged through the exhaust hood 13. The motor 11 is started to work. The motor 11 drives the fan blades 10 to rotate so that the gas can be diffused evenly to prevent local temperature from being too low or too high. After the air is heated, it will move quickly to perform penetration detection of the air tightness of the material. The air pressure sensor 21 detects the air pressure to realize the detection of the material's air permeability.
[0023] Example 2:
[0024] Please see Figure 1 and Figure 2 The following technical solution is provided, specifically: A PLC controller 9 is bolted to the top right side of the detection chamber 2; control buttons are bolted to the surface of the PLC controller 9; a temperature sensor 12 is bolted to the upper inner side of the movable door 15; a display 19 is bolted to the lower outer side of the movable door 15; the input terminal of the display 19 is unidirectionally electrically connected to the output terminals of the temperature sensor 12 and the air pressure sensor 21; and a battery box 8 is bolted to the bottom right side of the detection chamber 2. The inner cavity of the battery box 8 is... A storage battery 7 is fixedly connected by bolts. A charging port 6 is provided in the middle of one side of the battery box 8. The output end of the charging port 6 is unidirectionally electrically connected to the input end of the storage battery 7. An electric telescopic rod 3 is fixedly installed on the upper ends of both sides of the detection box 2 by bolts. A clamping plate 5 is fixedly connected to the output end of the electric telescopic rod 3. A clamping groove 4 is provided on the inner side of the clamping plate 5. A handle 20 is fixedly connected to the upper end of the front of the movable door 15. A protective cover is provided on the surface of the handle 20. Support legs are fixedly connected to the left and right sides of the bottom of the base plate 1, and anti-slip pads are provided on the bottom of the support legs.
[0025] In actual use, the material to be tested is placed inside the clamping groove 4, and the electric telescopic rod 3 is started to work. The electric telescopic rod 3 drives the clamping plate 5 to move inward to clamp and fix the material to be tested. The temperature sensor 12 can detect the temperature of the gas being tested, and the display 19 can display the test data for easy viewing by the test personnel.
[0026] In use: By starting the fan 17, air is drawn into the inner cavity of the air filter 16. Impurities in the air are filtered through the air filter screen 18. The filtered air is heated by the heating wire 22. The heated air is discharged through the exhaust hood 13. The motor 11 is started to work. The motor 11 drives the fan blades 10 to rotate so that the gas can be diffused evenly and prevent local temperature from being too low or too high. After the air is heated, it will move quickly to perform penetration detection of the air tightness of the material. The air pressure is detected by the air pressure sensor 21 to realize the detection of the material's air permeability.
[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A device for testing the air permeability of battery separator materials, comprising a base plate (1), characterized in that: A detection chamber (2) is fixedly connected to the middle of the top of the base plate (1). A pressure sensor (21) is fixedly connected to the middle of the bottom of the inner cavity of the detection chamber (2) by bolts. An air filter (16) is fixedly connected to the left side of the detection chamber (2). An air filter screen (18) is fixedly connected to the left side of the inner cavity of the air filter (16). A heating wire (22) is provided on the right side of the inner cavity of the air filter (16). A fan (17) is fixedly installed on the top of the air filter (16). The output end of the device is fixedly connected to an exhaust hood (13) via a corrugated pipe. An active door (15) is fixedly connected to the inner side of the exhaust hood (13). An outer shell (14) is fixedly connected to the inner side of the active door (15). A motor (11) is fixedly installed in the inner cavity of the outer shell (14). A fan blade (10) is fixedly connected to the output end of the motor (11). One side of the active door (15) is connected to the left side of the top of the detection box (2) via a hinge. A sealing ring is provided at the connection between the detection box (2) and the active door (15).
2. The device for detecting the air permeability of battery separator material according to claim 1, characterized in that: A PLC controller (9) is fixedly installed on the top right side of the detection box (2) by bolts, and control buttons are fixedly connected to the surface of the PLC controller (9) by bolts.
3. The device for detecting the air permeability of battery separator material according to claim 1, characterized in that: A temperature sensor (12) is fixedly connected to the upper inner side of the movable door (15) by bolts, and a display (19) is fixedly connected to the lower outer side of the movable door (15). The input terminal of the display (19) is unidirectionally electrically connected to the output terminals of the temperature sensor (12) and the air pressure sensor (21).
4. The device for detecting the air permeability of battery separator material according to claim 1, characterized in that: A battery box (8) is fixedly connected to the bottom right side of the detection box (2) by bolts. A storage battery (7) is fixedly connected to the inner cavity of the battery box (8) by bolts. A charging port (6) is provided at the middle of one side of the battery box (8). The output end of the charging port (6) is unidirectionally electrically connected to the input end of the storage battery (7).
5. The device for testing the air permeability of battery separator material according to claim 1, characterized in that: Electric telescopic rods (3) are fixedly installed on the upper ends of both sides of the detection box (2) by bolts. The output end of the electric telescopic rods (3) is fixedly connected to a clamping plate (5). A clamping groove (4) is opened on the inner side of the clamping plate (5).
6. The device for detecting the air permeability of battery separator material according to claim 1, characterized in that: A handle (20) is fixedly connected to the upper end of the front of the movable door (15), and a protective cover is provided on the surface of the handle (20).
7. The device for detecting the air permeability of battery separator material according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to the left and right sides, and the bottom of the support legs is provided with anti-slip pads.