An air tightness test marking device

Abstract

This utility model relates to the field of airtightness testing technology for charging stands, and more particularly to an airtightness testing and marking device, including a workbench, a mounting base, a sealing component, an airtightness detector, and a marking component. The mounting base is connected to the workbench and has a mounting groove for inserting a charging stand. The inner wall of the mounting groove can seal against the outer surface of the charging stand. The sealing component can seal any exposed cable openings on the charging stand that are exposed through the mounting groove. The mounting base has an inflation port communicating with the mounting groove and a terminal opening on the charging stand. The airtightness detector can sequentially inflate the charging stand through the inflation port and the terminal opening to detect the air pressure inside the charging stand. The marking component can mark the charging stand that has passed the airtightness test by the airtightness detector. This device automatically performs airtightness testing and marking on the charging stand, facilitating operation.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology for charging bases, and in particular to an airtightness testing marking device. Background Technology

[0002] During the production process, the airtightness of the vehicle's charging dock needs to be tested, and good products are marked.

[0003] An existing airtightness testing device includes a workbench, a mounting base, a sealing mechanism, and an airtightness tester. The mounting base is installed on the workbench and has a mounting groove for inserting a charging socket. The sealing mechanism seals the cable openings and terminal openings on the charging socket housing. The airtightness tester injects a certain amount of gas into the charging socket housing through the sealing groove. After a period of time, the airtightness tester detects whether the air pressure inside the charging socket has decreased. If the air pressure remains within the set range, it means that the airtightness of the charging socket meets the requirements, and it is then manually marked as a good product.

[0004] However, existing airtightness testing devices require manual marking of good products, which is cumbersome to operate. Summary of the Invention

[0005] This utility model provides an airtightness testing marking device, which aims to solve the problem that existing airtightness testing devices require manual marking of good products, which is cumbersome to operate.

[0006] To address the aforementioned issues, this utility model provides an airtightness testing and marking device, comprising a workbench, a mounting base, a sealing assembly, an airtightness detector, and a marking assembly. The mounting base is connected to the workbench and has a mounting groove for inserting a charging base. The inner wall of the mounting groove can make sealing contact with the outer side of the charging base. The sealing assembly can block the cable openings exposed in the mounting groove on the charging base. The mounting base has an air inlet communicating with the mounting groove and a terminal opening of the charging base. The airtightness detector can sequentially inflate the charging base through the air inlet and the terminal opening and is used to detect the air pressure inside the charging base. The marking component is capable of marking the charging dock that has been tested by the airtightness detector.

[0007] Optionally, the marking component includes a dotting drive mechanism and a dotting pen. The dotting drive mechanism is connected to the worktable and can drive the dotting pen to move toward or away from the mounting base. The dotting pen is used to make dots on the charging base.

[0008] Optionally, the dotting pen is a paint pen.

[0009] Optionally, the dotting drive mechanism includes a dotting table, a transition member, and a dotting drive member. The dotting table is mounted on the worktable, the dotting drive member is connected to the dotting table, the transition member is connected to the dotting drive member, the dotting pen is connected to the transition member, and the dotting drive member drives the transition member to move away from or towards the mounting base.

[0010] Optionally, the transition member includes a first connecting part and a second connecting part, the first connecting part being connected to the dotting drive member, and the second connecting part having a through hole through which the dotting pen passes; The marking assembly also includes a limiting component, which is used to limit the displacement of the marking pen in the perforation.

[0011] Optionally, the limiting component includes a set screw, and the second connecting part is provided with a locking hole communicating with the through hole. The locking hole is provided with an internal thread, and the set screw is screwed into the locking hole. One end of the set screw extending into the through hole abuts against the outer peripheral surface of the dotting pen.

[0012] Optionally, the mounting groove is provided with a DC boss and an AC boss, the DC boss and the AC boss protruding from the bottom wall of the mounting groove; The DC boss has a DC terminal hole for inserting the DC terminal of the charging base, and the AC boss has an AC terminal hole for inserting the AC terminal of the charging base. The gap between the DC boss, the AC boss and the mounting groove is for inserting the charging base. The DC boss can be inserted into the DC socket of the charging base, and the AC boss can be inserted into the AC socket of the charging base. The air inlet is provided in two parts, one of which is connected to the AC terminal hole and the other is connected to the DC terminal hole.

[0013] Optionally, the sealing assembly includes a first drive mechanism and a first sealing plate. The first drive mechanism is connected to the worktable, and the first sealing plate is connected to the first drive mechanism. The first drive mechanism can drive the first sealing plate to move toward or away from the mounting base. The first sealing plate has an AC sealing part and a DC sealing part on one side facing the mounting base. The AC sealing part can block the AC cable opening of the charging base, and the DC sealing part can block the DC cable opening of the charging base.

[0014] Optionally, the AC blocking part is provided with an AC silicone pad on the side facing the mounting base, and the DC blocking part is provided with a DC silicone pad on the side facing the mounting base.

[0015] Optionally, the sealing assembly includes a second drive mechanism and a second sealing plate. The second drive mechanism is connected to the worktable, and the second sealing plate is connected to the second drive mechanism. The second drive mechanism can drive the second sealing plate to move toward or away from the mounting base. The second sealing plate can block the side cable opening of the charging dock.

[0016] This utility model provides an airtightness testing and marking device. The airtightness detector fills the charging base with gas, and after standing for a period of time, the airtightness detector detects the air pressure inside the charging base. If the air pressure change is within the set range, it means that the charging base is a good product. The marking component marks the charging base with a good product mark. Compared with the prior art, the device automatically performs airtightness testing and marking on the charging base, which is convenient to operate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the airtightness testing and marking device provided in an embodiment of the present invention (showing the charging base). Figure 2 This is a schematic diagram of the structure of an airtightness testing marking device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the marking device. Figure 4 This is an assembly diagram of the workbench and mounting base; Figure 5 for Figure 4 Another perspective; Figure 6 This is a schematic diagram of the sealing assembly. Figure 7 A schematic diagram of the structure of the charging base applicable to the airtightness testing marking device provided in an embodiment of this utility model; Figure 8 for Figure 7 Another perspective.

[0019] Reference numerals in the accompanying drawings: 1. Workbench; 2. Sealing assembly; 3. Marking assembly; 4. Marking drive component; 5. Transition component; 6. First connecting part; 7. Second connecting part; 8. Marking base; 9. Through hole; 10. Locking hole; 11. Set screw; 12. Marking pen; 13. Marking platform; 14. Intermediate platform; 15. Mounting platform; 16. Drive hole; 17. Second drive mechanism; 18. Second sealing plate; 19. Sealing head; 20. Mounting base; 21. Mounting groove; 22. DC boss; 23. DC terminal hole; 24. AC boss 25. Platform; 26. AC terminal hole; 27. Positioning hole; 28. Inflation port; 29. ​​Inflation connector; 30. Crossbeam; 31. First drive mechanism; 32. First lifting cylinder; 33. First sealing plate; 34. DC sealing part; 35. DC silicone pad; 36. AC sealing part; 37. AC silicone pad; 38. Charging base; 39. DC cable opening; 40. AC cable opening; 41. DC terminal post; 42. DC terminal opening; 43. AC terminal post; 44. AC terminal opening. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 6 As shown in the figure, an embodiment of the present invention provides an airtightness testing marking device, including a workbench 1, a mounting base 20, a sealing component 2, an airtightness detector (not shown in the figure, set independently), and a marking component 3. The mounting base 20 is connected to the workbench 1. The mounting base 20 is provided with a mounting groove 21 for inserting a charging base 37. The inner wall of the mounting groove 21 can seal against the outer side of the charging base 37. The sealing component 2 can block the cable openings exposed on the charging base 37 through the mounting groove 21. The mounting base 20 is provided with an air inlet 27 communicating with the mounting groove 21. The air inlet 27 is connected to the terminal opening of the charging base 37. The airtightness detector can sequentially inflate the charging base 37 through the air inlet 27 and the terminal opening, and is used to detect the air pressure inside the charging base 37.

[0023] The marking component 3 can mark the charging base 37 that has passed the airtightness tester.

[0024] In this embodiment, the airtightness testing marking device is suitable for applications such as... Figure 7 and Figure 8 The vehicle AC / DC integrated charging socket 37 shown has a cable opening, a terminal opening and a side cable opening 40 on its housing. The terminal opening includes a DC terminal opening 42 and an AC terminal opening 44. The cable opening includes a DC cable opening 38 and an AC cable opening 39.

[0025] In this embodiment, the DC terminal opening 42 is disposed on the DC terminal post 41, and the DC terminal is located inside the DC terminal post 41. The AC terminal opening 44 is disposed on the AC terminal post 43, and the AC terminal is located inside the AC terminal.

[0026] In this embodiment, both the DC terminal and the AC terminal are circular terminals.

[0027] In this embodiment, the airtightness detector is existing technology and will not be described in detail here.

[0028] In this embodiment, an inflation connector 28 is sealed inside the inflation port 27, and the air tightness tester is connected to the inflation connector 28 through an air pipe.

[0029] In this embodiment, a flange edge is provided on the outer peripheral surface of the charging base 37. The flange edge of the charging base 37 to be tested is exposed in the mounting groove 21 and is connected to the upper side of the mounting base 20 by a positioning hole 26 provided on the upper side of the mounting base 20 and a screw.

[0030] In this embodiment, the air tightness tester fills the charging base 37 with gas. After standing for a period of time, the air tightness tester detects the air pressure inside the charging base 37. If the air pressure change is within the set range, it means that the charging base 37 is a good product, and the marking component 3 marks the charging base 37 with a good product mark.

[0031] In this embodiment, the charging base 37 is automatically airtight and marked, which facilitates operation.

[0032] In one embodiment, the marking component 3 includes a dotting drive mechanism and a dotting pen 12. The dotting drive mechanism is connected to the worktable 1 and can drive the dotting pen 12 to move toward or away from the mounting base 20. The dotting pen 12 is used to make dots on the charging base 37.

[0033] In this embodiment, a dotting pen 12 is used to make dots on the charging base 37 as a good product mark on the charging base 37, which will not cause damage to the shell of the charging base 37 and ensure the integrity of the charging base 37.

[0034] In one embodiment, the dotting pen 12 is a paint pen.

[0035] In this embodiment, paint pens are easy to design and purchase, and have a low cost.

[0036] In one embodiment, the dotting drive mechanism includes a dotting table 13, a transition member 5, and a dotting drive member 4. The dotting table 13 is mounted on the workbench 1, the dotting drive member 4 is connected to the dotting table 13, the transition member 5 is connected to the dotting drive member 4, the dotting pen 12 is connected to the transition member 5, and the dotting drive member 4 drives the transition member 5 to move away from or towards the mounting base 20.

[0037] In this embodiment, the dotting station 13 is installed on the upper side of the workbench 1.

[0038] In this embodiment, the dotting drive component 4 is a dotting cylinder.

[0039] In this embodiment, the cylinder body of the dotting cylinder is mounted on the dotting platform 13, and the transition piece 5 is connected to the piston rod of the dotting cylinder.

[0040] In this embodiment, the transition piece 5 is driven by the dotting cylinder to move, thereby driving the dotting pen 12 to move. The dotting pen 12 is connected to the dotting drive piece 4 through the transition piece 5, which facilitates the installation of the dotting pen 12.

[0041] In one embodiment, the transition member 5 includes a first connecting part 6 and a second connecting part 7. The first connecting part 6 is connected to the dotting drive member 4, and the second connecting part 7 is provided with a through hole 9, through which the dotting pen 12 passes.

[0042] The marking component 3 also includes a limiting component, which is used to limit the displacement of the marking pen 12 in the perforation 9.

[0043] In this embodiment, the transition member 5 is L-shaped, the first connecting part 6 and the second connecting part 7 are arranged perpendicularly, and both the first connecting part 6 and the second connecting part 7 are plate-shaped.

[0044] In this embodiment, the first connecting part 6 is connected to the piston rod of the dotting cylinder.

[0045] In this embodiment, the transition member 5 also includes a dotting seat 8, which is mounted on the second connecting part 7. A through hole 9 is provided on the dotting seat 8, and the dotting pen 12 passes through the through hole 9.

[0046] In this embodiment, the dotting base 8 includes a first dotting part and a second dotting part. The first dotting part is screwed to the second connecting part 7, and a through hole 9 is provided on the second dotting part.

[0047] In this embodiment, the limiting component can lock the dotting pen 12 on the second dotting part to prevent the dotting pen 12 from falling off the dotting base 8.

[0048] In one embodiment, the limiting component includes a set screw 11, and the second connecting part 7 is provided with a locking hole 10 communicating with the through hole 9. The locking hole 10 is provided with an internal thread, and the set screw 11 is screwed into the locking hole 10. One end of the set screw 11 extending into the through hole 9 abuts against the outer peripheral surface of the dotting pen 12.

[0049] In this embodiment, the keyhole 10 is disposed on the second dotted portion and is connected to the through hole 9.

[0050] In this embodiment, the set screw 11 is screwed into the locking hole 10, so that one end of the set screw 11 extending into the through hole 9 abuts against the outer peripheral surface of the dotting pen 12, thereby pressing the dotting pen 12 tightly and locking the dotting pen 12 in the through hole 9.

[0051] In this embodiment, the lock hole 10 and the set screw 11 are used as limiting components, which are simple in structure and easy to design.

[0052] In other embodiments, adhesive can be applied to the outer peripheral surface of the dotting pen 12 to bond the dotting pen 12 into the perforation 9.

[0053] In one embodiment, the mounting groove 21 is provided with a DC boss 22 and an AC boss 24, which protrude from the bottom wall of the mounting groove 21.

[0054] The DC boss 22 has a DC terminal hole 23 for inserting the DC terminal of the charging base 37, and the AC boss 24 has an AC terminal hole 25 for inserting the AC terminal of the charging base 37. The gap between the DC boss 22 and the AC boss 24 and the mounting groove 21 is used for inserting the charging base 37. The DC boss 22 can be inserted into the DC socket of the charging base 37, and the AC boss 24 can be inserted into the AC socket of the charging base 37.

[0055] There are two air inlets 27, one of which is connected to the AC terminal hole 25, and the other air inlet 27 is connected to the DC terminal hole 23.

[0056] In this embodiment, the DC terminal hole 23 is for the DC terminal post 41 to be inserted, and the inner wall of the DC terminal hole 23 is in contact with the outer peripheral surface of the DC terminal post 41, so that the DC terminal opening 42 is connected to the DC terminal hole 23. The AC terminal hole 25 is for the AC terminal post 43 to be inserted, so that the AC terminal opening 44 is connected to the AC terminal hole 25.

[0057] In this embodiment, the bottom end face of the DC terminal post 41 abuts against the bottom wall of the DC terminal hole 23 (the bottom wall of the mounting groove 21). Except for the DC terminal opening 42 that communicates with the air inlet 27, all other DC terminal openings 42 are blocked by the bottom wall of the mounting groove 21. The bottom end face of the AC terminal post 43 abuts against the bottom wall of the AC terminal hole 25 (the bottom wall of the mounting groove 21). Except for the AC terminal opening 44 that communicates with the air inlet 27, all other AC terminal openings 44 are blocked by the bottom wall of the mounting groove 21.

[0058] In this embodiment, when the air tightness tester is inflating the air inlet 27 in the AC position, the gas enters the AC terminal hole 25 through the air inlet 28 and then enters the charging base 37 through the AC terminal opening 44.

[0059] In this embodiment, when the air tightness tester inflates the air inlet 27 in the DC position, the gas enters the DC terminal hole 23 through the air inlet 28 and then enters the charging base 37 through the DC terminal opening 42.

[0060] In this embodiment, the DC and AC parts of the housing of the charging base 37 are independent. Therefore, the charging base 37 is only considered good when the air tightness tester detects that the air pressure in both parts is negative. Only then will the dotting pen 12 make dots on the housing of the charging base 37.

[0061] In one embodiment, the sealing assembly 2 includes a first drive mechanism 30 and a first sealing plate 32. The first drive mechanism 30 is connected to the worktable 1, and the first sealing plate 32 is connected to the first drive mechanism 30. The first drive mechanism 30 can drive the first sealing plate 32 to move toward or away from the mounting base 20.

[0062] The first sealing plate 32 has an AC sealing part 35 and a DC sealing part 33 on one side facing the mounting base 20. The AC sealing part 35 can block the AC cable opening 39 of the charging base 37, and the DC sealing part 33 can block the DC cable opening 38 of the charging base 37.

[0063] In this embodiment, a crossbeam 29 is provided on the workbench 1. The crossbeam 29 is located directly above the mounting base 20. The first driving mechanism 30 is a first lifting cylinder 31. The cylinder body of the first lifting cylinder 31 is connected to the crossbeam 29. The first sealing plate 32 is connected to the piston rod of the first lifting cylinder 31. The first lifting cylinder 31 drives the first sealing plate 32 to rise and fall.

[0064] In this embodiment, the DC cable opening 38 and AC cable opening 39 of the charging base 37 are blocked by a first sealing part, which simplifies the structure and facilitates design and manufacturing.

[0065] In one embodiment, the AC blocking part 35 is provided with an AC silicone pad 36 on the side facing the mounting base 20, and the DC blocking part 33 is provided with a DC silicone pad 34 on the side facing the mounting base 20.

[0066] In this embodiment, the AC silicone pad 36 is bonded to the side of the AC sealing part 35 facing the mounting base 20. The AC silicone pad 36 can deform under pressure. When the first lifting cylinder 31 drives the first sealing plate 32 to press down on the charging base 37, the AC silicone pad 36 can deform and enter the AC cable opening 39. This not only improves the sealing effect of the AC cable opening 39, but also provides a buffer for the charging base 37.

[0067] In this embodiment, the DC silicone pad 34 is bonded to the side of the DC sealing part 33 facing the mounting base 20. The DC silicone pad 34 can deform under pressure. When the first lifting cylinder 31 drives the first sealing plate 32 to press down on the charging base 37, the DC silicone pad 34 can deform and enter the DC cable opening 38. This not only improves the sealing effect of the DC cable opening 38, but also provides a buffer for the charging base 37.

[0068] In one embodiment, the sealing assembly 2 further includes a second drive mechanism 17 and a second sealing plate 18. The second drive mechanism 17 is connected to the worktable 1, and the second sealing plate 18 is connected to the second drive mechanism 17. The second drive mechanism 17 can drive the second sealing plate 18 to move toward or away from the mounting base 20.

[0069] The second sealing plate 18 can block the side cable opening 40 of the charging base 37.

[0070] In this embodiment, the second drive mechanism 17 is a second cylinder, and the sealing assembly 2 also includes a mounting platform 15 and an intermediate platform 14. The mounting platform 15 is installed on the upper side of the workbench 1, and the intermediate platform 14 is installed on the top of the mounting platform 15. The intermediate platform 14 is provided with a drive hole 16, the cylinder body of the second cylinder is installed in the drive hole 16, and the dotting platform 13 is installed on the top of the intermediate platform 14.

[0071] In this embodiment, the second sealing plate 18 is connected to the piston rod of the second cylinder, and a sealing head 19 is provided on one side of the second sealing plate 18 facing the charging base 37. The sealing head 19 is fixedly connected to the second sealing part, and the sealing head 19 is made of silicone.

[0072] In this embodiment, the second cylinder drives the second sealing plate 18 to approach the charging base 37, so that the sealing head 19 is inserted into the side cable opening 40 of the charging base 37 to seal the side cable opening 40.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] This utility model provides an airtightness testing and marking device. The airtightness detector fills the charging base 37 with gas. After standing for a period of time, the airtightness detector detects the air pressure inside the charging base 37. If the air pressure change is within the set range, it means that the charging base 37 is a good product. The marking component 3 marks the charging base 37 with a good product mark. Compared with the prior art, the device automatically performs airtightness testing and marking on the charging base 37, which is convenient to operate.

[0075] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An airtightness testing marking device, characterized in that, The device includes a workbench (1), a mounting base (20), a sealing assembly (2), an airtightness tester, and a marking assembly (3). The mounting base (20) is connected to the workbench (1). The mounting base (20) is provided with a mounting groove (21) for inserting a charging base (37). The inner wall of the mounting groove (21) can seal against the outer side of the charging base (37). The sealing assembly (2) can block the cable openings exposed in the mounting groove (21) on the charging base (37). The mounting base (20) is provided with an air inlet (27) communicating with the mounting groove (21). The air inlet (27) is connected to the terminal opening of the charging base (37). The airtightness tester can sequentially inflate the charging base (37) through the air inlet (27) and the terminal opening, and is used to detect the air pressure inside the charging base (37). The marking component (3) is capable of marking the charging base (37) that has been tested by the airtightness tester.

2. The airtightness testing and marking device according to claim 1, characterized in that, The marking component (3) includes a dotting drive mechanism and a dotting pen (12). The dotting drive mechanism is connected to the worktable (1). The dotting drive mechanism can drive the dotting pen (12) to move closer to or further away from the mounting base (20). The dotting pen (12) is used to make dots on the charging base (37).

3. The airtightness testing and marking device according to claim 2, characterized in that, The dotting pen (12) is a paint pen.

4. The airtightness testing marking device according to claim 3, characterized in that, The dotting drive mechanism includes a dotting table (13), a transition piece (5), and a dotting drive piece (4). The dotting table (13) is mounted on the workbench (1). The dotting drive piece (4) is connected to the dotting table (13). The transition piece (5) is connected to the dotting drive piece (4). The dotting pen (12) is connected to the transition piece (5). The dotting drive piece (4) drives the transition piece (5) to move away from or towards the mounting base (20).

5. The airtightness testing marking device according to claim 4, characterized in that, The transition member (5) includes a first connecting part (6) and a second connecting part (7). The first connecting part (6) is connected to the dotting drive member (4). The second connecting part (7) is provided with a through hole (9). The dotting pen (12) passes through the through hole (9). The marking component (3) also includes a limiting component, which is used to limit the displacement of the marking pen (12) in the perforation (9).

6. The airtightness testing marking device according to claim 5, characterized in that, The limiting component includes a set screw (11), and the second connecting part (7) is provided with a locking hole (10) communicating with the through hole (9). The locking hole (10) is provided with an internal thread, and the set screw (11) is screwed into the locking hole (10). One end of the set screw (11) extending into the through hole (9) abuts against the outer peripheral surface of the dotting pen (12).

7. The airtightness testing and marking device according to claim 1, characterized in that, The mounting groove (21) is provided with a DC boss (22) and an AC boss (24), which protrude from the bottom wall of the mounting groove (21); The DC boss (22) has a DC terminal hole (23) for inserting the DC terminal of the charging base (37), and the AC boss (24) has an AC terminal hole (25) for inserting the AC terminal of the charging base (37). The gap between the DC boss (22) and the AC boss (24) and the mounting groove (21) is used for inserting the charging base (37). The DC boss (22) can be inserted into the DC socket of the charging base (37), and the AC boss (24) can be inserted into the AC socket of the charging base (37). The air inlet (27) is provided in two parts, one of which is connected to the AC terminal hole (25), and the other is connected to the DC terminal hole (23).

8. The airtightness testing marking device according to claim 1, characterized in that, The sealing assembly (2) includes a first drive mechanism (30) and a first sealing plate (32). The first drive mechanism (30) is connected to the worktable (1), and the first sealing plate (32) is connected to the first drive mechanism (30). The first drive mechanism (30) can drive the first sealing plate (32) to move towards or away from the mounting base (20). The first sealing plate (32) has an AC sealing part (35) and a DC sealing part (33) on one side facing the mounting base (20). The AC sealing part (35) can block the AC cable opening (39) of the charging base (37), and the DC sealing part (33) can block the DC cable opening (38) of the charging base (37).

9. The airtightness testing marking device according to claim 8, characterized in that, The AC blocking part (35) has an AC silicone pad (36) on one side facing the mounting base (20), and the DC blocking part (33) has a DC silicone pad (34) on one side facing the mounting base (20).

10. The airtightness testing marking device according to claim 8, characterized in that, The sealing assembly (2) further includes a second drive mechanism (17) and a second sealing plate (18). The second drive mechanism (17) is connected to the worktable (1), and the second sealing plate (18) is connected to the second drive mechanism (17). The second drive mechanism (17) can drive the second sealing plate (18) to move toward or away from the mounting base (20). The second sealing plate (18) can block the side cable opening (40) of the charging base (37).

Images