Opposite top type solid oxide button cell testing device

Abstract

The utility model discloses a top-to-top type solid oxide button cell testing device, which relates to the field of solid oxide button cell testing and comprises a temperature control base, a supporting back plate, an adjusting top plate, a vertical heating furnace, an adjusting bottom plate and a cell clamp, the supporting back plate is fixed on the rear side of the top end of the temperature control base, and the adjusting top plate is fixed on the top end of the supporting back plate. The vertical heating furnace is fixed in the middle of the front end of the supporting back plate, and the adjusting bottom plate is fixed at the bottom of the front end of the supporting back plate. According to the opposite vertex type solid oxide button cell testing device, the position of the cell clamp can be adjusted by utilizing the adjusting top plate and the adjusting bottom plate, so that accurate opposite vertex of the button cell is realized; symmetry and pressure uniformity in the testing process are ensured, meanwhile, stable positioning of the battery clamp in the testing process can be ensured through the adjusting top plate and the adjusting bottom plate, displacement or looseness of the battery clamp is avoided, and therefore testing accuracy and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of button cell testing, specifically a top-mounted solid oxide button cell testing device. Background Technology

[0002] Currently, top-mounted solid oxide button cell testing devices typically rely on self-assembled testing equipment. These self-assembled testing devices have the following drawbacks: (1) The integration of self-assembled testing devices is not high, and they usually require complex manual adjustments. The testing process is cumbersome, inefficient, and the success rate of battery testing is low, making them unsuitable for high-frequency testing needs in large-scale laboratory research or industrial production environments; (2) Self-assembled devices may have problems such as inaccurate temperature control and poor heat preservation, resulting in the inability to guarantee the safety of equipment operation and the stability of the testing environment; (3) Existing self-assembled testing devices usually occupy a large area and are not compact enough. At the same time, the furnace design lacks stability, and the fixing method is relatively simple, making it easy to shake during operation. This not only affects the safety of testing and the service life of the equipment, but may also have an adverse effect on the stability and accuracy of experimental data. These problems lead to low accuracy and reliability of test results. The lack of accuracy and reliability of test results limits the promotion of top-mounted solid oxide button cell testing devices in experimental research and industrial applications, thereby affecting the evaluation of solid oxide battery performance and the research of new materials. Therefore, this invention aims to solve the technical bottleneck of solid oxide button cell testing devices through innovative design and technical means, and provide a comprehensive, accurate, and reliable testing device to promote the further development and application of solid oxide button cell technology. Utility Model Content

[0003] The purpose of this invention is to provide a top-mounted solid oxide button cell testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a top-mounted solid oxide button battery testing device, comprising a temperature control base, a support back plate, an adjustable top plate, a vertical heating furnace, an adjustable bottom plate, and battery clamps. The support back plate is fixed to the rear top of the temperature control base, the adjustable top plate is fixed to the top of the support back plate, the vertical heating furnace is fixed to the middle of the front end of the support back plate, and the adjustable bottom plate is fixed to the bottom of the front end of the support back plate. The support back plate includes a U-shaped back plate and a cooling fan. An opening is provided on the rear side of the U-shaped back plate, and the cooling fan is fixed inside the opening on the rear side of the U-shaped back plate. The cooling fan corresponds to the vertical heating furnace. Two sets of battery clamps are symmetrically installed inside the adjustable top plate and the adjustable bottom plate and inserted into the vertical heating furnace.

[0005] Preferably, the adjusting top plate includes a first slide rail, an L-shaped support plate, and a lead screw slide. The L-shaped support plate is slidably connected to the surface of the first slide rail, the lead screw slide is fixed to the front end of the L-shaped support plate, and the first slide rail is fixed to the top end of the U-shaped back plate.

[0006] Preferably, the lead screw slide includes a fixing member, a limiting rod, a lead screw, a slider, an upper fixing plate, and a first limiting groove. The lead screw is rotatably connected to the top end of the fixing member, and the slider is rotatably connected to the bottom end of the lead screw. Two sets of limiting rods are provided and symmetrically arranged on both sides of the top end of the slider. The top end of the limiting rod passes through the fixing member and is slidably connected to the fixing member. The upper fixing plate is fixed to the front end of the slider, and the first limiting groove is formed through the surface of the upper fixing plate.

[0007] Preferably, the vertical heating furnace includes a furnace body and an installation slot, the furnace body is designed with a rotating door, and the installation slot is centrally located and extends through the top of the furnace body.

[0008] Preferably, the adjusting base plate includes a second slide rail, a lower fixing plate, and a second limiting groove. The lower fixing plate is slidably connected to the surface of the second slide rail, and the second limiting groove is formed through the surface of the lower fixing plate.

[0009] Preferably, the first limiting groove of the lead screw slide corresponds to the second limiting groove of the adjusting base plate.

[0010] Preferably, the battery clamp includes a vent pipe and a wire end, with the vent pipe inserted and fixed at the top of the wire end.

[0011] Preferably, the vent tube includes an outer ceramic tube, a middle ceramic tube, a first spring, an inner quartz tube, a connecting structure, and an inner double-hole ceramic tube. The outer ceramic tube is inserted into the top of the connecting structure, the middle ceramic tube is inserted through the connecting structure and the outer ceramic tube, the first spring is placed on the inner wall of the bottom end of the middle ceramic tube, the bottom end of the inner quartz tube is in contact with the first spring, and the bottom end of the inner double-hole ceramic tube is in contact with the middle ceramic tube.

[0012] Preferably, the connection structure includes a threaded connecting pipe, a limiting nut, a threaded washer, a fixing washer, a second spring, and an outer connecting pipe. The limiting nut is sleeved on the bottom end of the outer ceramic tube and tightened on the top end of the threaded connecting pipe. The fixing washer is placed on the surface of the threaded washer. The threaded washer is tightened on the top of the threaded connecting pipe. The second spring is sleeved between the threaded connecting pipe and the protruding ring below the threaded washer. The outer connecting pipe is integrally formed and fixed to the bottom end of the threaded connecting pipe.

[0013] Preferably, the wire end includes a second sealing end, a four-way adapter, an air inlet end, a first cable end, and a second cable end. The second sealing end is screwed onto the top of the four-way adapter. The air inlet end, the first cable end, and the second cable end are all fixed to the bottom of the four-way adapter and communicate with each other.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention proposes a top-mounted solid oxide button cell testing device. When testing button cells, the device can adjust the position of the battery clamp by adjusting the top and bottom plates, thereby achieving precise alignment of the button cell and ensuring symmetry and pressure uniformity during the testing process. At the same time, adjusting the top and bottom plates ensures stable positioning of the battery clamp during the testing process, preventing displacement or loosening of the battery clamp, thus improving the accuracy and reliability of the test. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the top-mounted solid oxide button cell testing device of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the top-mounted solid oxide button cell testing device of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the top-mounted solid oxide button cell testing device of this utility model. Figure 3 ;

[0020] Figure 4 This is a detailed drawing of the top-mounted solid oxide button battery testing device of this utility model;

[0021] Figure 5 This is a schematic diagram of the battery clamp of the top-mounted solid oxide button battery testing device of this utility model;

[0022] Figure 6 This is a disassembled diagram of the battery clamp of the top-mounted solid oxide button battery testing device of this utility model;

[0023] Figure 7 This is a disassembled diagram of the connection structure of the top-mounted solid oxide button battery testing device of this utility model;

[0024] Figure 8 This is a schematic diagram of the lead wire end of the top-type solid oxide button battery testing device of this utility model.

[0025] As shown in the figure: 1. Temperature control base; 2. Support back plate; 21. C-shaped back plate; 22. Cooling fan; 3. Adjustable top plate; 31. First slide rail; 32. L-shaped support plate; 33. Screw slide table; 331. Fixing component; 332. Limiting rod; 333. Screw; 334. Sliding block; 335. Upper fixing plate; 336. First limiting groove; 4. Vertical heating furnace; 41. Furnace body; 42. Mounting slot; 5. Adjustable base plate; 51. Second slide rail; 52. Lower fixing plate; 53. Second limiting groove; 6. Battery clamp; 61. Through 611. Air tube; 612. Outer ceramic tube; 613. Middle ceramic tube; 614. First spring; 615. Inner quartz tube; 616. Connecting structure; 6151. Threaded connecting tube; 6152. Limiting nut; 6153. Threaded washer; 6154. Fixing washer; 6155. Second spring; 6156. Outer tube; 616. Inner double-hole ceramic tube; 2. Wire end; 621. Second sealing end; 622. Four-way adapter; 623. Air inlet end; 624. First cable end; 625. Second cable end. Detailed Implementation

[0026] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0027] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0028] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure but are connected as a whole through a transmission structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Please see Figures 1 to 8 This utility model provides a technical solution: a top-mounted solid oxide button battery testing device, including a temperature control base 1, a support back plate 2, an adjustable top plate 3, a vertical heating furnace 4, an adjustable bottom plate 5, and a battery clamp 6. The support back plate 2 is fixed to the rear top of the temperature control base 1, the adjustable top plate 3 is fixed to the top of the support back plate 2, the vertical heating furnace 4 is fixed to the middle of the front end of the support back plate 2, and the adjustable bottom plate 5 is fixed to the bottom of the front end of the support back plate 2. The support back plate 2 includes a C-shaped back plate 21 and a cooling fan 22. An opening is provided on the rear side of the C-shaped back plate 21, and the cooling fan 22 is fixed in the opening on the rear side of the C-shaped back plate 21. The cooling fan 22 corresponds to the vertical heating furnace 4. Two sets of battery clamps 6 are provided and symmetrically installed inside the adjustable top plate 3 and the adjustable bottom plate 5.

[0032] When testing button batteries using this device, the position of the battery clamp 6 can be adjusted by adjusting the top plate 3 and the bottom plate 5, thereby achieving precise alignment of the button battery and ensuring symmetry and pressure uniformity during the testing process. At the same time, adjusting the top plate 3 and the bottom plate 5 can ensure that the battery clamp 6 is stably positioned during the testing process, preventing the battery clamp 6 from shifting or loosening, thereby improving the accuracy and reliability of the test.

[0033] The adjusting top plate 3 includes a first slide rail 31, an L-shaped support plate 32 and a lead screw slide 33. The L-shaped support plate 32 is slidably connected to the surface of the first slide rail 31, the lead screw slide 33 is fixed to the front end of the L-shaped support plate 32, and the first slide rail 31 is fixed to the top end of the U-shaped back plate 21.

[0034] The lead screw slide 33 includes a fixing member 331, a limiting rod 332, a lead screw 333, a slider 334, an upper fixing plate 335, and a first limiting groove 336. The lead screw 333 is rotatably connected to the top end of the fixing member 331, and the slider 334 is rotatably connected to the bottom end of the lead screw 333. Two sets of limiting rods 332 are provided and symmetrically arranged on both sides of the top end of the slider 334. The top end of the limiting rod 332 passes through the fixing member 331 and is slidably connected to the fixing member 331. The upper fixing plate 335 is fixed to the front end of the slider 334, and the first limiting groove 336 is formed through the surface of the upper fixing plate 335.

[0035] The vertical heating furnace 4 includes a furnace body 41 and an installation slot 42. The furnace body 41 has a rotating door design, and the installation slot 42 is centrally located at the top of the furnace body 41.

[0036] When in use, the upper battery clamp 6 is passed through the first limiting groove 336 of the upper fixed plate 335 and inserted into the mounting slot 42 of the vertical heating furnace 4. The horizontal position of the upper clamp is adjusted by sliding the L-shaped support plate 32 on the surface of the first slide rail 31. When making longitudinal adjustments, the rotating handle fixed at the top of the lead screw 333 can be manually turned to control the longitudinal movement of the upper fixed plate 335 by rotating the lead screw 333, so as to ensure the position adjustment of the upper battery clamp 6.

[0037] The adjusting base plate 5 includes a second slide rail 51, a lower fixing plate 52, and a second limiting groove 53. The lower fixing plate 52 is slidably connected to the surface of the second slide rail 51, and the second limiting groove 53 is opened through the surface of the lower fixing plate 52.

[0038] The first limiting groove 336 of the lead screw slide 33 corresponds to the second limiting groove 53 of the adjusting base plate 5.

[0039] When installing the lower battery clamp 6, the lower battery clamp 6 is inserted into the mounting slot 42 of the vertical heating furnace 4 through the second limiting groove 53. The displacement of the lower battery clamp 6 is adjusted by sliding the lower fixing plate 52 on the surface of the second slide rail 51, so that the lower battery clamp 6 matches the upper battery clamp 6. The button battery is installed between the lower battery clamp 6 and the upper battery clamp 6, thereby achieving precise alignment of the button battery and ensuring symmetry and pressure uniformity during the test. The button battery is then heated by the vertical heating furnace 4.

[0040] The 42 slot design ensures stable positioning of the fixture during testing, preventing displacement or loosening, thereby improving testing accuracy and reliability. The slot is made of high-temperature resistant material, which can withstand the high-temperature environment during testing and ensure long-term stable use of the device.

[0041] The temperature control base 1 can adjust the reaction temperature inside the vertical heating furnace 4. The temperature control base 1 is connected to an external computer or control system through a communication interface, which can realize remote monitoring and operation of temperature control. Users can view the temperature data inside the furnace cavity in real time through external devices and remotely adjust the temperature control system to ensure the temperature accuracy and stability during the test process, improve the convenience of operation and the level of automation. The vertical heating furnace 4 is equipped with a high-precision temperature control system, which can accurately control the temperature inside the furnace cavity by automatically adjusting the heating element and monitoring the temperature sensor in real time, ensuring the stability and uniformity of the temperature during the test process, with a temperature control error of no more than ±1℃.

[0042] The design of the cooling fan 22 can exhaust the heat generated by the reaction in the vertical heating furnace 4 to the rear, thereby improving heat dissipation performance, enhancing equipment operation stability, and ensuring safe use.

[0043] The battery clamp 6 includes a vent tube 61 and a wire end 62, with the vent tube 61 inserted and fixed at the top of the wire end 62;

[0044] The ventilation tube 61 includes an outer ceramic tube 611, a middle ceramic tube 612, a first spring 613, an inner quartz tube 614, and a connecting structure 615. The outer ceramic tube 611 is inserted at the top of the connecting structure 615, the middle ceramic tube 612 is inserted through the connecting structure 615 and the outer ceramic tube 611, the first spring 613 is placed on the inner wall of the bottom end of the middle ceramic tube 612, and the bottom end of the inner quartz tube 614 is in contact with the first spring 613.

[0045] The connecting structure 615 includes a threaded connecting pipe 6151, a limiting nut 6152, a threaded washer 6153, a fixing washer 6154, a second spring 6155, and an outer connecting pipe 6156. The limiting nut 6152 is sleeved on the bottom end of the outer ceramic tube 611 and tightened on the top end of the threaded connecting pipe 6151. The fixing washer 6154 is placed on the surface of the threaded washer 6153, and the threaded washer 6153 is tightened on the top end of the threaded connecting pipe 6151. The second spring 6155 is sleeved between the threaded connecting pipe 6151 and the protruding ring below the threaded washer 6153. The outer connecting pipe 6156 is integrally formed and fixed to the bottom end of the threaded connecting pipe 6151. The top end of the protruding ring below the threaded washer 6153 and the bottom end of the fixing washer 6154 are both provided with grooves to limit and fix the two ends of the second spring 6155.

[0046] The wire end 62 includes a second sealing end 621, a four-way adapter 622, an air inlet end 623, a first cable end 624, and a second cable end 625. The second sealing end 621 is screwed onto the top of the four-way adapter 622. The air inlet end 623, the first cable end 624, and the second cable end 625 are all fixed to the bottom of the four-way adapter 622 and are interconnected with the four-way adapter 622.

[0047] During assembly, the external platinum mesh is wound and fixed to the top of the inner quartz tube 614. The design of the first spring 613 can control the inner quartz tube 614 to generate a certain elastic displacement space. The top of the inner quartz tube 614 is three millimeters higher than the outer ceramic tube 611 and the middle ceramic tube 612, which makes it convenient for the platinum mesh at the ends of the upper and lower sets of inner quartz tubes 614 to clamp the battery. This test method is a four-electrode method at both ends. The two gold wires are separated by a double-hole inner double-hole ceramic tube 616 to reduce the internal resistance of the wires.

[0048] In use, the external gas cylinder is connected to the gas inlet 623 via a gas pipe, and the gas is transported through the middle ceramic tube 612 to the inside of the vertical heating furnace 4 to assist the reaction. The first cable end 624 and the second cable end 625 allow gold wires to be inserted and connected to the inner quartz tube 614 and the platinum mesh.

[0049] When installing the battery clamp 6, the vertical heating furnace 4 is rotated and opened, and the two sets of battery clamps 6 are slidably installed between the first limiting groove 336 and the second limiting groove 53 using the connecting structure 615 to fix the battery clamp 6. The first limiting groove 336 and the second limiting groove 53 are respectively locked in the middle section of the corresponding threaded connecting pipe 6151, and the corresponding second spring 6155 respectively clamps the upper fixing plate 335 and the lower fixing plate 52.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0051] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An opposed solid oxide button cell testing device comprising a temperature controlled base (1), a support back plate (2), an adjustable top plate (3), a vertical heating furnace (4), an adjustable bottom plate (5) and a cell clamp (6), characterized in that: The support back plate (2) is fixed at the top rear side of the temperature control base (1), the adjusting top plate (3) is fixed at the top of the support back plate (2), the vertical heating furnace (4) is fixed at the middle of the front end of the support back plate (2), the adjusting bottom plate (5) is fixed at the bottom of the front end of the support back plate (2), the support back plate (2) comprises a U-shaped back plate (21) and a cooling fan (22), the rear side of the U-shaped back plate (21) is provided with an opening, the cooling fan (22) is fixed in the rear opening of the U-shaped back plate (21), and the cooling fan (22) corresponds to the vertical heating furnace (4). The battery clamp (6) is provided with two groups and is symmetrically installed inside the adjusting top plate (3) and the adjusting bottom plate (5).

2. The push against type solid oxide button cell testing device according to claim 1, wherein: The adjusting top plate (3) comprises a first sliding rail (31), an L-shaped support plate (32) and a lead screw sliding table (33), the L-shaped support plate (32) is slidably connected to the surface of the first sliding rail (31), and the lead screw sliding table (33) is fixed to the front end of the L-shaped support plate (32). The first sliding rail (31) is fixed to the top of the U-shaped back plate (21).

3. A push against type solid oxide button cell testing device according to claim 2, wherein: The lead screw sliding table (33) comprises a fixing piece (331), a limiting rod (332), a lead screw (333), a sliding block (334), an upper fixed plate (335) and a first limiting groove (336), the lead screw (333) is rotatably connected to the top of the fixing piece (331), the sliding block (334) is rotatably connected to the bottom of the lead screw (333), the limiting rod (332) is provided with two groups and is symmetrically arranged on both sides of the top of the sliding block (334), the limiting rod (332) penetrates through the fixing piece (331) and is slidably connected with the fixing piece (331), the upper fixed plate (335) is fixed to the front end of the sliding block (334), and the first limiting groove (336) is provided on the surface of the upper fixed plate (335).

4. The push against type solid oxide button cell testing device according to claim 3, wherein: The vertical heating furnace (4) comprises a furnace body (41) and an insertion slot (42), the furnace body (41) is designed as a rotary door, and the insertion slot (42) is centrally and penetratively arranged on the top of the furnace body (41).

5. A push against type solid oxide button cell testing device according to claim 4, wherein: The adjusting bottom plate (5) comprises a second sliding rail (51), a lower fixed plate (52) and a second limiting groove (53), the lower fixed plate (52) is slidably connected to the surface of the second sliding rail (51), and the second limiting groove (53) is penetratively arranged on the surface of the lower fixed plate (52).

6. A push against type solid oxide button cell testing device according to claim 5, wherein: The first limiting groove (336) of the lead screw sliding table (33) corresponds to the second limiting groove (53) of the adjusting bottom plate (5).

7. A push against type solid oxide button cell testing device according to claim 6, wherein: The battery clamp (6) comprises a vent pipe (61) and a wire end (62), and the vent pipe (61) is fixedly arranged on the top of the wire end (62).

8. A push against type solid oxide button cell testing device according to claim 7, wherein: The ventilation pipe (61) comprises an outer ceramic pipe (611), a middle ceramic pipe (612), a first spring (613), an inner quartz pipe (614), a connecting structure (615) and an inner double-hole ceramic pipe (616), the outer ceramic pipe (611) is inserted at the top end of the connecting structure (615), the middle ceramic pipe (612) is inserted inside the connecting structure (615) and the outer ceramic pipe (611), the first spring (613) is placed on the inner wall of the bottom end of the middle ceramic pipe (612), the inner quartz pipe (614) is in contact with the first spring (613) at the bottom end, and the inner double-hole ceramic pipe (616) is in contact with the middle ceramic pipe (612) at the bottom end.

9. A push against solid oxide button cell testing device according to claim 8, wherein: The connecting structure (615) comprises a threaded connecting pipe (6151), a limiting nut (6152), a threaded washer (6153), a fixed washer (6154), a second spring (6155) and an external connecting pipe (6156), the limiting nut (6152) is sleeved on the bottom end of the outer ceramic pipe (611) and is screwed on the top end of the threaded connecting pipe (6151), the fixed washer (6154) is placed on the surface of the threaded washer (6153), the threaded washer (6153) is screwed on the top of the threaded connecting pipe (6151), the second spring (6155) is sleeved between the threaded connecting pipe (6151) and the raised ring below the threaded washer (6153), and the external connecting pipe (6156) is integrally formed and fixed on the bottom end of the threaded connecting pipe (6151).

10. The push against type solid oxide button cell testing device according to claim 9, wherein: The wire end (62) comprises a second sealing end (621), a four-way adapter (622), an air inlet end (623), a first cable end (624) and a second cable end (625), the second sealing end (621) is screwed on the top end of the four-way adapter (622), the air inlet end (623), the first cable end (624) and the second cable end (625) are fixed on the bottom end of the four-way adapter (622) and are mutually penetrated with the four-way adapter (622).

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