Battery gas production testing device

Abstract

The utility model discloses a battery gas production testing device which comprises a detection box body, a first binding post, a second binding post, a gas inlet, a gas outlet, a first plug and a gas guide pipe matched with the gas outlet, the first binding post, the second binding post, the gas inlet, the gas outlet and the first plug are arranged on the detection box body, and a mounting position is formed between the inner side end of the first binding post and the inner side end of the second binding post. When the battery is installed on the installation position, the positive electrode of the battery is conducted with the first binding post, the negative electrode of the battery is conducted with the second binding post, the first plug is matched with the air inlet, and the air guide pipe is matched with the air outlet. The airtightness of the device is ensured through the sealed connection of the detection box body with the first binding post and the second binding post, the airtightness of the device can be detected before testing through the design of the air inlet and the air outlet, the accuracy of the testing result of the device is further ensured, the first binding post and the second binding post adopt Xinwei battery detection cabinet joints, and the internal resistance is ensured to be small during testing.

Description

Technical Field

[0001] The utility model belongs to the field of battery detection equipment, and particularly relates to a battery gas production test device. Background Art

[0002] During the production process of batteries, sampling gas production tests are required, that is, a certain amount of samples are drawn, small holes are opened on the circumference of each battery, the gas generated inside the battery is allowed to escape from the small holes, and the escaped gas is introduced into a metering device to measure the gas production. The existing testing devices have poor sealing effects and large internal resistance when the connector is connected to the battery, which leads to inaccurate test results. Summary of the invention

[0003] The utility model aims to provide a battery gas production testing device with relatively accurate test results.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a battery gas production testing device, which includes: a detection box body, a first terminal, a second terminal, an air inlet, an air outlet, a first plug, and an air duct matching the air outlet, wherein a mounting position is formed between the inner end of the first terminal and the inner end of the second terminal. When the battery is installed on the mounting position, the positive electrode of the battery is connected to the first terminal, the negative electrode of the battery is connected to the second terminal, the first plug is matched with the air inlet, and the air duct is matched with the air outlet.

[0005] In another embodiment, the detection box body is cylindrical, and a first terminal is threadedly connected to its upper end, the first terminal is passed through the first terminal and its inner end is located in the detection box body, and a sealing ring is provided between the first terminal and the upper end surface of the detection box body.

[0006] In another embodiment, the detection box body is cylindrical, and a second terminal is threadedly connected to its lower end, the second terminal is passed through the second terminal and its inner end is located in the detection box body, and a sealing ring is provided between the second terminal and the lower end surface of the detection box body.

[0007] In another embodiment, a spring for pressing the battery between the inner end of the first terminal and the inner end of the second terminal is provided on the lower end surface of the first terminal.

[0008] In another embodiment, the detection box body includes a lower box body, an upper cover with a sealing cover disposed on the lower box body, and a support frame fixedly installed in the lower box body, the support frame includes a transverse support plate fixed in the lower box body and arranged parallel to the upper cover, a front longitudinal plate vertically arranged at the front end of the transverse support plate, and a rear longitudinal plate vertically arranged at the rear end of the transverse support plate, the first terminal is installed on the front longitudinal plate, and the second terminal is installed on the rear longitudinal plate.

[0009] In another embodiment, the front and rear ends of the lower box body are respectively provided with wire outlet holes.

[0010] In another embodiment, the air outlet and the air inlet are respectively opened on the left side and the right side of the lower box body.

[0011] In another embodiment, wire pressing plates are provided on the front and rear end surfaces of the lower box body (to prevent the wires on the first and second terminals from moving relative to the lower box body when they are pulled, thereby causing poor sealing).

[0012] In another embodiment, the upper cover includes an outer cover plate and an inner sealing gasket, and the inner sealing gasket is arranged along the upper end surface of the lower box body.

[0013] Due to the application of the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model ensures the airtightness of the device by the sealed connection between the detection box body and the first terminal and the second terminal. The design of the air inlet and outlet can check the airtightness of the device before testing, further ensuring the accuracy of the test results of the device. The first terminal and the second terminal adopt the Xinwei battery testing cabinet connector to ensure that the internal resistance is small during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of embodiment 1;

[0015] Figure 2 It is an exploded view of the second embodiment;

[0016] Figure 3 This is a top view of the device in Example 2 with the upper cover removed;

[0017] Figure 4 It is a side view of the device in Example 2 after removing the upper cover. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] like Figure 1As shown, in this embodiment, the gas production test device of battery 0 includes: a detection box body 1, a first terminal 2, a second terminal 3, an air inlet 4, an air outlet 5, a first plug 6, and an air duct 7 matching the air outlet 5, which are arranged on the detection box body 1, and a mounting position 8 is formed between the inner end of the first terminal 2 and the inner end of the second terminal 3. When battery 0 is installed on the mounting position 8, the positive electrode of battery 0 is connected to the first terminal 2, the negative electrode of battery 0 is connected to the second terminal 3, the first plug 6 is matched with the air inlet 4, and the air duct 7 is matched with the air outlet 5.

[0020] Specifically, the detection box body 1 is in the shape of a tube, and a first terminal 91 is threadedly connected to its upper end, and the first terminal 2 is inserted through the first terminal 91 and its inner end is located in the detection box body 1. A sealing ring 93 is provided between the first terminal 91 and the upper end surface of the detection box body 1. The detection box body 1 is in the shape of a cylinder, and a second terminal 92 is threadedly connected to its lower end, and the second terminal 3 is inserted through the second terminal 92 and its inner end is located in the detection box body 1. A sealing ring 93 is provided between the second terminal 92 and the lower end surface of the detection box body 1. A spring 94 is provided on the lower end surface of the first terminal 91 for pressing the battery 0 between the inner end of the first terminal 2 and the inner end of the second terminal 3.

[0021] In this embodiment, after the battery 0 to be tested is loaded into the test box body 1, the first terminal 91 and the second terminal 92 are tightened, and the air inlet 4 is sealed with the first plug 6. The air tightness is tested by injecting gas into the air outlet 5. After the test is completed, the conduit A is connected to the air outlet 5. After the battery 0 is connected, the gas in the test box body 1 is led out to the test tube inverted on the alcohol through the conduit, and the amount of alcohol discharged in the test tube is measured to measure the gas production of the battery 0. The conduit is a PEEK tube, and the first and second terminals are connected using the Xinwei battery test cabinet connector.

[0022] Embodiment 2

[0023] like Figure 2-4 As shown, in this embodiment, the gas production test device of battery 0 includes: a detection box body 1, a first terminal 2, a second terminal 3, an air inlet 4, an air outlet 5, a first plug 6, and an air duct 7 matching the air outlet 5, which are arranged on the detection box body 1, and a mounting position 8 is formed between the inner end of the first terminal 2 and the inner end of the second terminal 3. When battery 0 is installed on the mounting position 8, the positive electrode of battery 0 is connected to the first terminal 2, the negative electrode of battery 0 is connected to the second terminal 3, the first plug 6 is matched with the air inlet 4, and the air duct 7 is matched with the air outlet 5.

[0024] Specifically, the detection box body 1 includes a lower box body 12, an upper cover 11 with a sealing cover arranged on the lower box body 12, and a support frame 13 fixedly installed in the lower box body 12. The support frame 13 includes a horizontal support plate 131 fixed in the lower box body 12 and arranged parallel to the upper cover 11, a front longitudinal plate 132 vertically arranged at the front end of the horizontal support plate 131, and a rear longitudinal plate 133 vertically arranged at the rear end of the horizontal support plate 131. The first terminal 2 is installed on the front longitudinal plate 132, and the second terminal 3 is installed on the rear longitudinal plate 133. The front and rear ends of the lower box body 12 are provided with outlet holes 121 respectively. The air outlet 5 and the air inlet 4 are respectively opened on the left side and the right side of the lower box body 12. The front and rear end surfaces of the lower box body 12 are provided with wire pressing pieces 122, which can prevent the relative movement between the wires on the first terminal 2 and the second terminal 3 and the lower box body 12 when they are pulled, thereby causing poor sealing. The upper cover 11 includes an outer cover plate 112 and an inner sealing gasket 111, and the inner sealing gasket 111 is arranged along the upper end surface of the lower box body 12. The conduit is a PEEK tube, and the first terminal 2 and the second terminal 3 adopt the connector of the Xinwei battery test cabinet.

[0025] In this embodiment, after the battery 0 to be tested is loaded into the detection box body 1, the upper cover 11 is sealed, and the air inlet 4 is sealed with the first plug 6. The air tightness is tested by injecting gas into the air outlet 5. After the test is completed, the conduit is connected to the air outlet 5. After the battery 0 is connected, the gas in the detection box body 1 is discharged into the test tube A inverted on the alcohol through the conduit, and the amount of alcohol discharged from the test tube A is measured to measure the gas production of the battery 0.

[0026] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery gas production testing device, characterized in that: It includes: A detection box body, a first terminal, a second terminal, an air inlet, an air outlet, a first plug, and an air duct matching the air outlet are arranged on the detection box body, a mounting position is formed between the inner end of the first terminal and the inner end of the second terminal, when the battery is installed on the mounting position, the positive electrode of the battery is connected to the first terminal, the negative electrode of the battery is connected to the second terminal, the first plug is matched with the air inlet, and the air duct is matched with the air outlet.

2. The battery gas generation test device according to claim 1, characterized in that: The detection box body is in a cylindrical shape, and a first terminal is threadedly connected to the upper end thereof. The first terminal is passed through the first terminal and the inner end thereof is located in the detection box body.

3. The battery gas generation test device according to claim 1, characterized in that: The detection box body is cylindrical, and a second terminal is threadedly connected to the lower end thereof. The second terminal is passed through the second terminal and the inner end thereof is located in the detection box body.

4. The battery gas generation test device according to claim 2, characterized in that: A spring for pressing the battery between the inner side end of the first terminal and the inner side end of the second terminal is provided on the lower end surface of the first terminal.

5. The battery gas generation test device according to claim 1, characterized in that: The detection box body includes a lower box body, an upper cover with a sealing cover arranged on the lower box body, and a support frame fixedly installed in the lower box body, the support frame includes a transverse support plate fixed in the lower box body and arranged parallel to the upper cover, a front longitudinal plate vertically arranged at the front end of the transverse support plate, and a rear longitudinal plate vertically arranged at the rear end of the transverse support plate, the first terminal is installed on the front longitudinal plate, and the second terminal is installed on the rear longitudinal plate.

6. The battery gas generation test device according to claim 5, characterized in that: The front and rear ends of the lower box body are respectively provided with wire outlet holes.

7. The battery gas generation test device according to claim 5, characterized in that: The air outlet and the air inlet are respectively opened on the left side and the right side of the lower box body.

8. The battery gas generation test device according to claim 5, characterized in that: The front and rear end surfaces of the lower box body are provided with wire pressing pieces.

9. The battery gas generation test device according to claim 5, characterized in that: The upper cover comprises an outer cover plate and an inner sealing gasket, and the inner sealing gasket is arranged along the upper end surface of the lower box body.

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