Energy storage battery pole sealing performance detection device and method

Abstract

The application relates to the technical field of storage batteries, and discloses a storage battery pole sealing performance detection device and method, which comprises a control machine, a cylinder is fixedly connected to the top of the control machine, a sliding rod is slidably connected in the cylinder, a connecting plate is fixedly connected to the bottom of the sliding rod, limiting rods are fixedly connected to the top of the connecting plate on both sides, a display machine body is arranged on one side of the control machine, a detection mechanism is arranged at the bottom of the connecting plate, a power line is fixedly connected between the control machine and the display machine body, a connecting piece is fixedly connected to one side of the top of the control machine, an air pressure gauge is fixedly connected to one side of the connecting piece, and a communication pipe is fixedly connected between the connecting piece and a shell; the detection mechanism comprises a shell, the shell is fixedly connected to the inside of the control machine, and a plurality of supporting plates are fixedly connected to the outside of the shell. Through the technical scheme, the problem that various specifications of poles cannot be conveniently sealed and detected in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of battery technology, specifically to a device and method for testing the sealing performance of energy storage battery terminals. Background Technology

[0002] A storage battery is a device that directly converts chemical energy into electrical energy. It is designed to be rechargeable, achieving recharging through a reversible chemical reaction. It typically refers to lead-acid batteries, a type of secondary battery. Its working principle is as follows: during charging, external electrical energy is used to regenerate the internal active materials, storing electrical energy as chemical energy. When discharging is needed, the chemical energy is converted back into electrical energy for output. The production process of storage batteries inevitably requires the connection of terminals. A terminal is a component that connects directly to the busbar at one end and to an external conductor (in this case, also called a terminal) at the other end, or to one terminal of an adjacent individual cell in the battery pack.

[0003] The patent specification with announcement number CN209513167U discloses a device for testing the sealing performance of the terminal of an energy storage battery. A cylinder (2) connected to a control valve pressure gauge (12) is fixed on the lower crossbeam (301) of a support sliding rod (3). The telescopic rod (201) of the cylinder (2) is vertically upward, and a top platform (14) is provided on the top of the telescopic rod (201). A sealing head limiting rod (5) is vertically fixed on the upper crossbeam (302) of the support sliding rod (3) at a position opposite to the top platform (14). The lower surface of the sealing head limiting rod (5) is connected to the air pump testing mechanism (7) through the air pipe display body (6). A pressure gauge support mechanism (8) and a shut-off valve limiting mechanism (9) are also installed on the air pipe display body (6). The shut-off valve limiting mechanism (9) is located between the air pump testing mechanism (7) and the pressure gauge support mechanism (8). This device and method can effectively test and determine whether the quality of the sealant meets the standards, and at the same time, it can find the real cause of terminal acid creep corrosion, effectively solve the problem of terminal acid creep corrosion, and reduce production costs.

[0004] However, the following problems were found in the implementation of the above technical solution: Since the actual size and specifications of the poles are different, it is not convenient to conduct sealing tests on poles of different specifications during use. The monotonous design will cause inconvenience and limitations during testing. When multiple specifications of poles need to be tested for sealing, special equipment is required, which increases the cost to enterprises. Therefore, further improvement is needed. Summary of the Invention

[0005] This invention proposes a device and method for testing the sealing performance of energy storage battery terminals, which solves the problem in related technologies that make it inconvenient to test the sealing performance of terminals of various specifications.

[0006] The technical solution of the present invention is as follows:

[0007] A device and method for testing the sealing performance of energy storage battery terminals includes a control unit. A cylinder is fixedly connected to the top of the control unit, a sliding rod is slidably connected inside the cylinder, a connecting plate is fixedly connected to the bottom of the sliding rod, limit rods are fixedly connected to both sides of the top of the connecting plate, a display body is provided on one side of the control unit, a detection mechanism is provided at the bottom of the connecting plate, a power cord is fixedly connected between the control unit and the display body, a connector is fixedly connected to one side of the top of the control unit, a pressure gauge is fixedly connected to one side of the connector, and a connecting pipe is fixedly connected between the connector and the housing.

[0008] The detection mechanism includes a housing, which is fixedly connected to the inside of the control unit. Multiple support plates are fixedly connected to the outside of the housing. Blocking grooves are opened on both sides of the inside of the housing. Two blocking blocks are slidably connected inside each of the two blocking grooves. An adapter frame is fixedly connected to the top of the two blocking blocks. A connecting shell is provided at the bottom of the connecting plate. A pressure sensor is fixedly connected inside the connecting shell. A cover is provided outside the pressure sensor. Two mounting plates are fixedly installed on both sides of the outside of the connecting shell. A top plate is fixedly connected to the top of the two mounting plates.

[0009] Support mechanisms are provided on both sides of the outer side of the connecting shell. Each support mechanism includes a fixed plate located on the bottom side of the connecting plate. A rotating rod is connected inside the fixed plate via a bearing. A rotating plate is fixedly connected to the outside of the rotating rod. A base plate is fixedly connected to the bottom side of the rotating plate. Springs are fixedly connected to both sides of the top of the base plate. Positioning plates are fixedly connected to the top of both rotating plates.

[0010] Preferably, the two limiting rods pass through both sides of the controller and contact the latter, a limiting plate is fixedly connected to one side of the bottom of the connecting plate, and one side of the limiting plate contacts the outside of the connecting shell.

[0011] Preferably, the pressure sensor is electrically connected to the display body, and the cross-sectional area of ​​the connecting shell is larger than the cross-sectional area of ​​the housing.

[0012] Preferably, the top of the cover is fixedly connected to the inside of the connecting shell, and the cover covers the outside of the pressure sensor.

[0013] Preferably, the top of the top plate is in contact with one side of the bottom of the connecting plate, one side of the top of the fixing plate is fixedly connected to one side of the bottom of the connecting plate, and the tops of the two springs are respectively fixedly connected to the two sides of the bottom of the connecting plate.

[0014] Preferably, the tops of the two positioning plates are in contact with the bottoms of the two top plates respectively, the rotating plate is shaped as an oblique L, a plate body is embedded on one side of the bottom of the two rotating plates, and a connecting rod is fixedly connected to one side of the two plate bodies.

[0015] Preferably, the bottom sides of the connecting plate are provided with limiting mechanisms, the limiting mechanisms including clamping plates, and the clamping plates are connected to the top of the connecting plate by bolts.

[0016] Preferably, a column is fixedly connected to the bottom of the card plate, and a round shell is fixedly connected to the bottom of the column.

[0017] Preferably, a blocking rod is provided inside the circular shell, and the blocking rod is connected to the circular shell through a damping bearing. The blocking rod is L-shaped and located at the bottom of the connecting rod.

[0018] A method for testing the sealing performance of the terminals of an energy storage battery, characterized by comprising the following steps:

[0019] S1: When it is necessary to test the battery terminals, the operator first needs to open the cylinder. After the cylinder is opened, it will control the sliding rod to move downward. During the movement of the sliding rod, it will drive the connecting plate to move simultaneously. During the movement of the connecting plate, it will drive the connecting shell and the cover to move downward simultaneously. When the cover moves to contact the pad at the bottom of the battery terminal, the connection port on one side of the connector will be connected to the external air injection equipment.

[0020] S2: When the connecting shell covers the outside of the housing to form a sealed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the inside of the connector. When the connector is guided by the gas injection, it will transmit the gas to the inside of the housing and the connecting shell through the connecting pipe, thereby performing the test on the battery terminal.

[0021] S3: When the battery terminals are properly sealed, the display unit will show the corresponding information to remind the staff that there is no problem. If there is a gap between the battery terminals and the gasket, resulting in poor sealing, gas will penetrate into the inside of the casing. At this time, due to the change in air pressure inside the casing, the air pressure sensor will receive a signal and then display the sealing failure through the display unit to ensure the accuracy of the test.

[0022] The working principle and beneficial effects of this invention are as follows:

[0023] In this invention, the adapter frame is pushed, and the blocking block moves synchronously during the pushing process. When the distance between the two adapter frames is appropriate, the operator can place the battery terminal with the gasket inside the two adapter frames, which facilitates flexible support for gaskets of different specifications and solves the problem of inconvenience in sealing and testing terminals of various specifications.

[0024] In this invention, the connecting rod is pushed downwards, and the connecting rod moves the plate body simultaneously during the movement. The plate body moves simultaneously, and the rotating plate and positioning plate rotate simultaneously. At the same time, the rotating plate rotates the base plate and compresses the spring during the rotation. The positioning plate gradually moves away from the bottom of the top plate during the rotation. Different specifications of battery terminals can be detected through different specifications of covers, avoiding the limitations and uniformity of existing devices that often use a single mold to detect corresponding battery terminals.

[0025] In this invention, after the blocking rod is rotated to 180 degrees, the connecting rod is rotated to the bottom of the blocking rod. Then, the operator rotates the blocking rod back to 180 degrees. At this time, the spring stretches and rebounds, causing the base plate and the rotating plate to rotate. During the rotation of the rotating plate, the plate body and the connecting rod will rotate synchronously. When one side of the connecting rod contacts the bottom of the blocking rod, the connecting rod will be limited, thus ensuring the convenience of replacement. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a rear view schematic diagram of the overall structure of the present invention;

[0029] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0030] Figure 4 For the present invention Figure 3 A schematic diagram showing the separation of some of the structures in the diagram;

[0031] Figure 5 This is a partial structural illustration of the present invention. Figure 2 ;

[0032] Figure 6 For the present invention Figure 5 A schematic diagram showing the separation of some of the structures in the diagram;

[0033] Figure 7 For the present invention Figure 6 Enlarged view of point A in the image.

[0034] In the diagram: 1. Control unit; 2. Cylinder; 3. Sliding rod; 4. Connecting plate; 5. Limiting rod; 6. Display body; 7. Detection mechanism; 701. Housing; 702. Support plate; 703. Blocking groove; 704. Blocking block; 705. Adapter frame; 706. Limiting plate; 707. Connecting shell; 708. Cover; 709. Pressure sensor; 710. Mounting plate; 711. Top plate; 8. Support mechanism; 801. Fixing plate; 802. Rotating rod; 803. Rotating plate; 804. Base plate; 805. Spring; 806. Positioning plate; 807. Plate body; 808. Connecting rod; 9. Limiting mechanism; 901. Clamping plate; 902. Column; 903. Round shell; 904. Blocking rod; 10. Power cord; 11. Connector; 12. Pressure gauge; 13. Connecting pipe. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1

[0036] like Figures 1-6 As shown, this embodiment proposes a device and method for testing the sealing performance of the terminal of an energy storage battery, including a control unit 1, a cylinder 2 fixedly connected to the top of the control unit 1, a sliding rod 3 slidably connected inside the cylinder 2, a connecting plate 4 fixedly connected to the bottom of the sliding rod 3, limit rods 5 fixedly connected to both sides of the top of the connecting plate 4, a display body 6 provided on one side of the outside of the control unit 1, a testing mechanism 7 provided at the bottom of the connecting plate 4, a power line 10 fixedly connected between the control unit 1 and the display body 6, a connector 11 fixedly connected to one side of the top of the control unit 1, a pressure gauge 12 fixedly connected to one side of the connector 11, and a connecting pipe 13 fixedly connected between the connector 11 and the housing 701;

[0037] The detection mechanism 7 includes a housing 701, which is fixedly connected to the inside of the control unit 1. Multiple support plates 702 are fixedly connected to the outside of the housing 701. Blocking grooves 703 are provided on both sides of the inside of the housing 701. Two blocking blocks 704 are slidably connected inside the two blocking grooves 703. An adapter frame 705 is fixedly connected to the top of the two blocking blocks 704. A connecting shell 707 is provided at the bottom of the connecting plate 4. A pressure sensor 709 is fixedly connected inside the connecting shell 707. A cover 708 is provided outside the pressure sensor 709. Two mounting plates 710 are fixedly installed on both sides of the outside of the connecting shell 707. A top plate 711 is fixedly connected to the top of the two mounting plates 710.

[0038] In this embodiment, two limiting rods 5 pass through the inside of the controller 1 on both sides and contact the latter. A limiting plate 706 is fixedly connected to one side of the bottom of the connecting plate 4. One side of the limiting plate 706 contacts the outside of the connecting shell 707, which facilitates the limiting plate 706 to limit the connecting shell 707.

[0039] In this embodiment, the air pressure sensor 709 is electrically connected to the display body 6. The cross-sectional area of ​​the connecting shell 707 is larger than that of the shell 701, which makes it easier for the connecting shell 707 to cover the outside of the shell 701.

[0040] In this embodiment, the top of the cover 708 is fixedly connected to the inside of the connecting shell 707, and the cover 708 covers the outside of the pressure sensor 709, which facilitates the collection of leaked gas by the cover 708.

[0041] When testing the sealing performance of the battery terminals, the operator first pushes the adapter frame 705. During this process, the adapter frame 705 simultaneously moves the blocking block 704. Once the distance between the two adapter frames 705 is appropriate, the operator can place the battery terminal with the gasket inside the two adapter frames 705 for easy and flexible support of the gasket. Then, the operator activates cylinder 2. After activation, cylinder 2 controls the sliding rod 3 to move downwards. During this movement, the sliding rod 3 simultaneously moves the connecting plate 4, which in turn moves the connecting shell 707 and... The cover 708 moves downward. When the cover 708 moves to contact the pad at the bottom of the battery terminal, the connecting shell 707 will contact the top of the support plate 702 and cover the outside of the housing 701 to form a sealed chamber. During this process, the cover 708 will cover the outside of the battery terminal. Then, the operator connects to the external air injection device through the connection port on one side of the connector 11 and turns on the air injection device. At this time, the air injection device will inject air into the inside of the connector 11. When the connector 11 is guided by the air injection, it will transmit the gas to the inside of the housing 701 and the connecting shell 707 through the connecting pipe 13, thereby performing the test on the battery terminal.

[0042] When the battery terminals are properly sealed, the display unit 6 will display a corresponding message to remind the operator that there is no problem. If there is a gap between the battery terminals and the gasket, resulting in poor sealing, gas will penetrate into the interior of the cover 708. At this time, due to the change in air pressure inside the cover 708, the air pressure sensor 709 will receive a signal and then display a message indicating that the sealing is not up to standard through the display unit 6, so as to ensure the accuracy of the test. Example 2

[0043] like Figures 5-6As shown, based on the same concept as in Embodiment 1 above, this embodiment also proposes that the connecting shell 707 is provided with support mechanisms 8 on both sides of the outside. The support mechanism 8 includes a fixing plate 801, which is located on the bottom side of the connecting plate 4. A rotating rod 802 is connected inside the fixing plate 801 through a bearing. A rotating plate 803 is fixedly connected to the outside of the rotating rod 802. A base plate 804 is fixedly connected to the bottom side of the rotating plate 803. Springs 805 are fixedly connected to both sides of the top of the base plate 804. Positioning plates 806 are fixedly connected to the top of both rotating plates 803, which can facilitate the fixing of the positioning plates 806.

[0044] In this embodiment, the top of the top plate 711 is in contact with one side of the bottom of the connecting plate 4, one side of the top of the fixing plate 801 is fixedly connected to one side of the bottom of the connecting plate 4, and the tops of the two springs 805 are respectively fixedly connected to the two sides of the bottom of the connecting plate 4, which facilitates the deformation of the springs 805.

[0045] In this embodiment, the tops of the two positioning plates 806 are in contact with the bottoms of the two top plates 711 respectively. The rotating plate 803 is shaped as an oblique L. A plate body 807 is embedded on one side of the bottom of the two rotating plates 803. A connecting rod 808 is fixedly connected to one side of the two plate bodies 807, which facilitates the fixing of the connecting rod 808.

[0046] When using this device, to test battery terminals of different specifications, the operator needs to push the connecting rod 808 downwards. During this movement, the connecting rod 808 will simultaneously move the plate 807, which in turn will rotate the rotating plate 803 and the positioning plate 806. Simultaneously, the rotating plate 803 will rotate the base plate 804 and compress the spring 805. The positioning plate 806 will gradually move away from the bottom of the top plate 711. The operator can then remove the connecting shell 707. During this movement, the connecting shell 707 will simultaneously move the mounting plate 710 and the top plate 711. At the same time, the cover 708 and the pressure sensor 709 will also move, thus achieving the effect of changing the testing mold. Different specifications of battery terminals can be tested using different sizes of cover 708, avoiding the limitations and monotony of existing devices that often use a single mold to test a specific battery terminal. Example 3

[0047] like Figure 7 As shown, based on the same concept as in Embodiment 2 above, this embodiment also proposes that the bottom two sides of the connecting plate 4 are provided with limiting mechanisms 9. The limiting mechanism 9 includes a clamping plate 901. The clamping plate 901 is connected to the top of the connecting plate 4 by bolts, which can facilitate the fixing of the clamping plate 901.

[0048] In this embodiment, a column 902 is fixedly connected to the bottom of the card plate 901, and a round shell 903 is fixedly connected to the bottom of the column 902, which facilitates the fixed connection of the column 902.

[0049] In this embodiment, a blocking rod 904 is provided inside the circular shell 903. The blocking rod 904 is connected to the circular shell 903 through a damping bearing. The blocking rod 904 is L-shaped and is located at the bottom of the connecting rod 808, which facilitates the blocking rod 904 to block the connecting rod 808.

[0050] A method for testing the sealing performance of the terminals of an energy storage battery includes the following steps:

[0051] S1: When it is necessary to test the battery terminals, the operator first needs to open the cylinder 2. After the cylinder 2 is opened, it will control the sliding rod 3 to move downward. During the movement of the sliding rod 3, it will simultaneously drive the connecting plate 4 to move. During the movement of the connecting plate 4, it will simultaneously drive the connecting shell 707 and the cover 708 to move downward. When the cover 708 moves to contact the pad at the bottom of the battery terminal, the connection port on one side of the connector 11 is then connected to the external air injection equipment.

[0052] S2: When the connecting shell 707 covers the outside of the shell 701 to form a sealed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the inside of the connector 11. When the connector 11 is guided by the gas injection, it will transmit the gas to the inside of the shell 701 and the connecting shell 707 through the connecting pipe 13, thereby performing the test on the battery terminal.

[0053] S3: When the battery terminals are properly sealed, the display unit 6 will display a corresponding message to remind the operator that there is no problem. If there is a gap between the battery terminals and the gasket, resulting in poor sealing, gas will penetrate into the interior of the cover 708. At this time, due to the change in air pressure inside the cover 708, the air pressure sensor 709 will receive a signal and then display a message indicating that the sealing is not up to standard through the display unit 6, so as to ensure the accuracy of the test.

[0054] To facilitate replacement of the connecting shell 707 during use, the operator can first rotate the blocking rod 904. After the blocking rod 904 has rotated 180 degrees, the connecting rod 808 is rotated to the bottom of the blocking rod 904. The operator can then rotate the blocking rod 904 back to its original position by 180 degrees. At this time, the spring 805 stretches and rebounds, causing the base plate 804 and the rotating plate 803 to rotate. During the rotation of the rotating plate 803, the plate body 807 and the connecting rod 808 will rotate simultaneously. When one side of the connecting rod 808 contacts the bottom of the blocking rod 904, the connecting rod 808 will be limited. The positioning plate 806 will have a certain distance from the bottom of the connecting plate 4. When the new connecting shell 707 moves to the bottom of the connecting plate 4, the limiting plate 706 will limit the connecting shell 707. Then the top plates 711 on both sides will be between the positioning plate 806 and the connecting plate 4. At this time, the operator will rotate the blocking rod 904 again, and then the spring 805 will stretch and drive the bottom plate 804 and the rotating plate 803 to reset and rotate. During the rotation, the rotating plate 803 will simultaneously drive the positioning plate 806 to clamp the top plate 711, thereby ensuring the convenience of changing when inspecting different specifications of pole molds.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the sealing performance of energy storage battery terminals, comprising a control unit (1), characterized in that, A cylinder (2) is fixedly connected to the top of the control unit (1). A sliding rod (3) is slidably connected inside the cylinder (2). A connecting plate (4) is fixedly connected to the bottom of the sliding rod (3). Limit rods (5) are fixedly connected to both sides of the top of the connecting plate (4). A display body (6) is provided on one side of the outside of the control unit (1). A detection mechanism (7) is provided at the bottom of the connecting plate (4). A power cord (10) is fixedly connected between the control unit (1) and the display body (6). A connector (11) is fixedly connected to one side of the top of the control unit (1). A pressure gauge (12) is fixedly connected to one side of the connector (11). A connecting pipe (13) is fixedly connected between the connector (11) and the housing (701). The detection mechanism (7) includes a housing (701), which is fixedly connected to the inside of the controller (1). Multiple support plates (702) are fixedly connected to the outside of the housing (701). Blocking grooves (703) are provided on both sides inside the housing (701). Two blocking blocks (704) are slidably connected inside the two blocking grooves (703). An adapter frame (705) is fixedly connected to the top of the two blocking blocks (704). A connecting shell (707) is provided at the bottom of the connecting plate (4). A pressure sensor (709) is fixedly connected inside the connecting shell (707). A cover (708) is provided outside the pressure sensor (709). Two mounting plates (710) are fixedly installed on both sides outside the connecting shell (707). A top plate (711) is fixedly connected to the top of the two mounting plates (710). The connecting shell (707) is provided with support mechanisms (8) on both sides of the outside. The support mechanism (8) includes a fixed plate (801). The fixed plate (801) is located on the bottom side of the connecting plate (4). A rotating rod (802) is connected inside the fixed plate (801) through a bearing. A rotating plate (803) is fixedly connected to the outside of the rotating rod (802). A base plate (804) is fixedly connected to the bottom side of the rotating plate (803). Springs (805) are fixedly connected to both sides of the top of the base plate (804). A positioning plate (806) is fixedly connected to the top of both rotating plates (803).

2. The energy storage battery terminal sealing performance testing device according to claim 1, characterized in that, The two limiting rods (5) pass through the inside of the control machine (1) on both sides and are in contact with the latter. The bottom side of the connecting plate (4) is fixedly connected to the limiting plate (706), and one side of the limiting plate (706) is in contact with the outside side of the connecting shell (707).

3. The energy storage battery terminal sealing performance testing device according to claim 2, characterized in that, The pressure sensor (709) is electrically connected to the display body (6), and the cross-sectional area of ​​the connecting shell (707) is larger than that of the shell (701).

4. The energy storage battery terminal sealing performance testing device according to claim 3, characterized in that, The top of the cover (708) is fixedly connected to the inside of the connecting shell (707), and the cover (708) covers the outside of the pressure sensor (709).

5. The energy storage battery terminal sealing performance testing device according to claim 4, characterized in that, The top of the top plate (711) is in contact with the bottom side of the connecting plate (4), the top side of the fixing plate (801) is fixedly connected to the bottom side of the connecting plate (4), and the tops of the two springs (805) are fixedly connected to the bottom sides of the connecting plate (4) respectively.

6. The energy storage battery terminal sealing performance testing device according to claim 5, characterized in that, The tops of the two positioning plates (806) are in contact with the bottoms of the two top plates (711), the rotating plate (803) is shaped as an oblique L, and a plate body (807) is embedded on one side of the bottom of the two rotating plates (803), and a connecting rod (808) is fixedly connected to one side of the two plate bodies (807).

7. The energy storage battery terminal sealing performance testing device according to claim 6, characterized in that, The bottom sides of the connecting plate (4) are provided with limiting mechanisms (9), the limiting mechanism (9) includes a clamping plate (901), and the clamping plate (901) is connected to the top of the connecting plate (4) by bolts.

8. The energy storage battery terminal sealing performance testing device according to claim 7, characterized in that, A column (902) is fixedly connected to the bottom of the card plate (901), and a round shell (903) is fixedly connected to the bottom of the column (902).

9. The energy storage battery terminal sealing performance testing device according to claim 8, characterized in that, The circular shell (903) is provided with a blocking rod (904) inside. The blocking rod (904) is connected to the circular shell (903) through a damping bearing. The blocking rod (904) is L-shaped and is located at the bottom of the connecting rod (808).

10. A method for testing the sealing performance of energy storage battery terminals, using the energy storage battery terminal sealing performance testing device as described in claim 9, characterized in that... Includes the following steps: S1: When it is necessary to test the battery terminals, the operator first needs to open the cylinder (2). After the cylinder (2) is opened, it will control the sliding rod (3) to move downward. During the movement of the sliding rod (3), it will drive the connecting plate (4) to move simultaneously. During the movement of the connecting plate (4), it will drive the connecting shell (707) and the cover (708) to move downward simultaneously. When the cover (708) moves to contact the pad at the bottom of the battery terminal, the connection port on one side of the connector (11) is then connected to the external air injection equipment. S2: When the connecting shell (707) covers the outside of the shell (701) to form a sealed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the inside of the connector (11). When the connector (11) is guided by the gas injection, it will transmit the gas to the inside of the shell (701) and the connecting shell (707) through the connecting pipe (13) to perform the test on the battery terminal. S3: When the battery terminals are in good sealing condition, the display unit (6) will display accordingly to remind the staff that there is no problem. If there is a gap between the battery terminals and the gasket, resulting in poor sealing, gas will penetrate into the inside of the cover (708). At this time, due to the change in air pressure inside the cover (708), the air pressure sensor (709) will receive a signal and then display the unqualified sealing through the display unit (6) to ensure the accuracy of the test.

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