Jig for liquid filling of electrochromic device

Abstract

The utility model discloses a jig for liquid filling of an electrochromic device, which comprises a clamping component, and the clamping component comprises a mounting frame, a suspension rod and a material clamp; wherein the installation frame is used for being installed and connected in the liquid filling machine, the suspension rod is connected to the installation frame, and the material clamp is connected to the suspension rod and used for clamping a device box body. The liquid filling device can be used for clamping device boxes of different shapes and sizes, can be further used for filling liquid into the device boxes of different shapes and sizes, and is higher in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to a jig for liquid filling of electrochromic device. BACKGROUND

[0002] At present, in the manufacturing process of electrochromic device, first, two pieces of conductive glass are pasted to form a device box body with a middle space gap and a liquid filling port, then the device box body is placed into a liquid filling machine to fill electrochromic solution into the middle space gap, and then the liquid filling port is blocked and solidified. Among them, when the device box body is vacuum filled in the liquid filling machine, a tool jig is needed to clamp the device box body, but the existing tool jig is usually only suitable for filling liquid for a certain specific shape of device box body, for example, the liquid filling clamp for electrochromic device disclosed in the Chinese patent with publication number CN206877014U is only suitable for filling liquid for circular device box body but not for long strip-shaped device box body, and for example, the new liquid filling tool disclosed in the Chinese patent with publication number CN221765899U is only suitable for filling liquid for long strip-shaped device box body but not for circular device box body. It can be seen that some existing tool jigs are only suitable for filling liquid for a certain fixed shape of device box body, and the versatility is poor. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a jig for liquid filling of electrochromic device, which can be used to clamp device box bodies of various shapes and sizes, and can be used to fill liquid for device box bodies of various shapes and sizes, and has better versatility.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a jig for liquid filling of electrochromic device, comprising a clamping assembly, the clamping assembly comprises a mounting frame, a suspension rod and a material clamp;

[0005] The mounting frame is used to be connected in the liquid filling machine;

[0006] The suspension rod is connected to the mounting frame;

[0007] The material clamp is connected to the suspension rod and used to clamp the device box body.

[0008] Further, a specific structure of the mounting frame is provided, the mounting frame comprises a left vertical plate and a right vertical plate, the left vertical plate and the right vertical plate are respectively used to be connected in the liquid filling machine;

[0009] One end of the suspension rod is connected to the left vertical plate, and the other end of the suspension rod is connected to the right vertical plate.

[0010] Further provided is a specific structure of the suspension rod, which comprises a left telescopic rod body and a right telescopic rod body;

[0011] The left telescopic rod body is in sliding connection with the right telescopic rod body;

[0012] One end of the left telescopic rod body is connected to the left vertical plate;

[0013] One end of the right telescopic rod body is connected to the right vertical plate.

[0014] Further, the suspension rod is provided with at least two, and a plurality of the material clamps are connected to the suspension rod, wherein a part of the material clamps are connected to the left telescopic rod body in the suspension rod, and another part of the material clamps are connected to the right telescopic rod body in the suspension rod.

[0015] Further provided is a specific structure of the material clamp, which comprises a clamp body, a hook and a lifting ring;

[0016] The clamp body is connected to the hook, and the clamp body is used for clamping the device box body;

[0017] The hook is connected to the lifting ring;

[0018] The lifting ring of a part of the material clamps is suspendedly connected to the left telescopic rod body, and the lifting ring of another part of the material clamps is suspendedly connected to the right telescopic rod body.

[0019] Further, the left telescopic rod body and the right telescopic rod body are respectively provided with a plurality of limiting holes with upward openings at intervals, and a limiting pin for being inserted into the corresponding limiting hole is connected to the lifting ring.

[0020] Further, a flexible pad is connected to the clamp head of the clamp body.

[0021] Further, the jig for liquid filling of the electrochromic device further comprises a splash-proof cover;

[0022] One end of the left vertical plate is provided with a first bearing part, the other end of the left vertical plate is provided with a second bearing part, and a left protruding part protruding upward is arranged between the first bearing part and the second bearing part;

[0023] One end of the right vertical plate is provided with a third bearing part, the other end of the right vertical plate is provided with a fourth bearing part, and a right protruding part protruding upward is arranged between the third bearing part and the fourth bearing part;

[0024] The splash-proof cover is used for covering the clamping assembly from above and is supported on the first bearing part, the second bearing part, the third bearing part and the fourth bearing part, and the left protruding part and the right protruding part are inserted into the splash-proof cover.

[0025] Further, the jig for filling liquid for electrochromic device further comprises a splash-proof protective cover, wherein the splash-proof protective cover comprises:

[0026] a cover shell for covering outside of the clamping assembly, wherein a lower end of the cover shell is provided with a lower end opening and an upper end of the cover shell is provided with an upper end opening;

[0027] a cover plate rotatably connected to the cover shell and used for covering the upper end opening and opening the upper end opening;

[0028] a gas pressure rod, one end of the gas pressure rod is hingedly connected to the cover shell, and the other end of the gas pressure rod is hingedly connected to the cover plate.

[0029] Further, the side wall of the cover shell is provided with a ventilation hole.

[0030] After the above technical scheme is adopted, the device box body has a middle space gap and a liquid filling port, the middle space gap needs to be filled with electrochromic solution, and the liquid filling port is communicated with the middle space gap. The device box body is clamped on the material clamp and the liquid filling port on the device box body is arranged downward, the clamping assembly is placed into a liquid filling machine, the liquid filling machine has a container containing electrochromic solution, the liquid filling port on the device box body clamped on the material clamp is immersed in the electrochromic solution in the container, so that the electrochromic solution is filled into the device box body through vacuum pressure. The device box body needing to be filled with liquid is clamped by the material clamp, which is not limited by the shape and size of the device box body, that is, various device box bodies with different shapes and sizes can be clamped by the material clamp, and then the liquid filling of various device box bodies with different shapes and sizes can be realized, and the universality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 FIG. 1 is a structural schematic view of the clamping assembly of the utility model;

[0032] Figure 2 FIG. 2 is a partial detail view of A in FIG. 1; Figure 1

[0033] Figure 3 FIG. 3 is a structural schematic view of the lifting ring of the utility model;

[0034] Figure 4 FIG. 4 is a structural schematic view of the clamping assembly and the splash-proof cover when the clamping assembly and the splash-proof cover are separated;

[0035] Figure 5 FIG. 5 is a structural schematic view of the clamping assembly and the splash-proof cover when the splash-proof cover is installed on the clamping assembly;

[0036] Figure 6 ​The utility model discloses a structure schematic drawing when the splashproof protective cover of the utility model is covered outside the clamping assembly.

[0037] Figure 7 The utility model discloses a sectional view of the splashproof protective cover of the utility model.

[0038] In the drawing: 1, mounting frame, 2, hanging rod, 3, material clamp, 4, device box body, 5, left vertical plate, 6, right vertical plate, 7, left telescopic rod body, 8, right telescopic rod body, 9, clamping groove, 10, clamp main body, 11, hook, 12, lifting eye, 13, limit hole, 14, limit pin, 15, flexible pad, 16, splash cover, 17, first bearing part, 18, second bearing part, 19, left protruding part, 20, third bearing part, 21, fourth bearing part, 22, right protruding part, 23, cover shell, 24, lower end opening, 25, upper end opening, 26, cover plate, 27, air pressure rod, 28, air hole. DETAILED DESCRIPTION

[0039] In order to make the content of the utility model more easily be clearly understood, according to specific embodiment below and combining with the drawing, the utility model is further explained in detail.

[0040] Example one

[0041] As Figures 1-5 Indicated, a kind of for electrochromic device liquid filling tool, including clamping assembly, the clamping assembly includes mounting frame 1, hanging rod 2 and material clamp 3 in it;

[0042] The mounting frame 1 is used to install connection in liquid filling machine;

[0043] The hanging rod 2 is connected on the mounting frame 1;

[0044] The material clamp 3 is connected on the hanging rod 2 and is used to clamp device box body 4;

[0045] Specifically, the device box 4 has a middle space gap and a liquid filling port, the middle space gap needs to be filled with electrochromic solution, and the liquid filling port is in communication with the middle space gap. The device box 4 is clamped on the material clamp 3 and the liquid filling port on the device box 4 is arranged downward, and the entire clamping assembly is placed into a liquid filling machine. The liquid filling machine has a container containing electrochromic solution, and the liquid filling port on the device box 4 clamped on the material clamp 3 is immersed in the electrochromic solution in the container so as to fill the electrochromic solution into the device box 4 by vacuum pressure. The device box 4 to be filled with liquid is clamped by the material clamp 3, which is not limited by the shape and size of the device box 4, that is, various device boxes 4 of different shapes and sizes can be clamped by the material clamp 3, and then the device boxes 4 of various shapes and sizes can be filled with liquid, which has higher universality. Further specifically, the liquid filling machine has a support frame, the mounting frame 1 in the clamping assembly is used to be connected to the support frame, and the specific structures of the liquid filling machine and the device box 4 are all prior art known by those skilled in the art.

[0046] As shown in Figure 1 , 4 , 5, the mounting frame 1 can include a left vertical plate 5 and a right vertical plate 6, and the left vertical plate 5 and the right vertical plate 6 are respectively used to be mounted and connected in the liquid filling machine.

[0047] One end of the suspension rod 2 is connected to the left vertical plate 5, and the other end of the suspension rod 2 is connected to the right vertical plate 6. Specifically, the left vertical plate 5 and the right vertical plate 6 are used to be mounted and connected to the support frame in the liquid filling machine.

[0048] As shown in Figure 1 , 2 , 4, 5, the suspension rod 2 can include a left telescopic rod body 7 and a right telescopic rod body 8.

[0049] The left telescopic rod body 7 is in sliding connection with the right telescopic rod body 8.

[0050] One end of the left telescopic rod body 7 is connected to the left vertical plate 5.

[0051] One end of the right telescopic rod body 8 is connected to the right vertical plate 6.

[0052] Specifically, the size of the liquid filling machine is large or small, and the size of the support frame in the liquid filling machine is also different. By relatively sliding the left telescopic rod body 7 and the right telescopic rod body 8, the distance between the left vertical plate 5 and the right vertical plate 6 can be adjusted, and then the distance between the left vertical plate 5 and the right vertical plate 6 is adapted to the size of the liquid filling machine. Then the left vertical plate 5 and the right vertical plate 6 are connected to the support frame in the liquid filling machine, and then the liquid filling machine of different sizes can be adapted.

[0053] AsFigure 1 、 2 , 4, 5, the suspension rod 2 can be provided with at least two, the suspension rod 2 can be connected with a plurality of the material clamp 3, wherein a part of the material clamp 3 is connected to the left telescopic rod body 7 in the suspension rod 2, another part of the material clamp 3 is connected to the right telescopic rod body 8 in the suspension rod 2; Specifically, a vacuum liquid filling can fill the electrochromic solution in a plurality of device box bodies 4, the suspension rod 2 is provided with two in the embodiment.

[0054] As shown in Figures 1-5 , the material clamp 3 can include a clamp body 10, a hook 11 and a lifting ring 12;

[0055] The clamp body 10 is connected to the hook 11, and the clamp body 10 is used for clamping the device box body 4;

[0056] The hook 11 is connected to the lifting ring 12;

[0057] A part of the lifting ring 12 in the material clamp 3 is suspended and connected to the left telescopic rod body 7, and another part of the lifting ring 12 in the material clamp 3 is suspended and connected to the right telescopic rod body 8.

[0058] As shown in Figure 2 , 3 , the left telescopic rod body 7 and the right telescopic rod body 8 are respectively provided with a plurality of limiting holes 13 with upward opening, and the lifting ring 12 is connected with a limiting pin 14 for being inserted into the corresponding limiting hole 13, so as to prevent the lifting ring 12 from moving on the left telescopic rod body 7 and the right telescopic rod body 8.

[0059] As shown in Figure 2 , the chuck of the clamp body 10 is connected with a flexible pad 15, so as to prevent the clamp body 10 from directly contacting with the device box body 4, and the device box body 4 can be prevented from being clamped by the flexible pad 15, and the flexible pad 15 can be pearl wool in the embodiment.

[0060] As shown in Figure 4 , 5 , the jig for electrochromic device liquid filling can further include a splash cover 16;

[0061] One end of the left vertical plate 5 is provided with a first bearing part 17, the other end of the left vertical plate 5 is provided with a second bearing part 18, and the first bearing part 17 and the second bearing part 18 are provided with a left protruding part 19 protruding upward;

[0062] One end of the right vertical plate 6 is provided with a third bearing part 20, the other end of the right vertical plate 6 is provided with a fourth bearing part 21, and a right protruding part 22 protruding upward is arranged between the third bearing part 20 and the fourth bearing part 21;

[0063] The splash-proof cover 16 is used to cover the clamping assembly and is supported on the first bearing part 17, the second bearing part 18, the third bearing part 20 and the fourth bearing part 21, and the left protruding part 19 and the right protruding part 22 extend into the splash-proof cover 16; in particular, when a low-viscosity electrochromic solution is used, the electrochromic solution will splash everywhere during vacuum filling, at this time the splash-proof cover 16 can be covered, which is used to block the splashed electrochromic solution during vacuum filling, thereby ensuring the cleanliness of the inner cavity of the filling machine and avoiding the pollution of the electrochromic solution to the inner cavity of the filling machine. Further in particular, when a high-viscosity electrochromic solution is used, the splashing degree of the electrochromic solution is weak during vacuum filling, at this time the splash-proof cover 16 can be selected not to be used.

[0064] Example two

[0065] As shown in Figure 1 , 2 , 3, 6, 7, another jig for filling electrochromic devices, comprising a clamping assembly, the clamping assembly comprising a mounting frame 1, a suspension rod 2 and a material clamp 3;

[0066] The mounting frame 1 is used to be connected in the filling machine;

[0067] The suspension rod 2 is connected to the mounting frame 1;

[0068] The material clamp 3 is connected to the suspension rod 2 and is used to clamp the device box body 4;

[0069] Specifically, the device box 4 has a middle space gap and a liquid filling port, the middle space gap needs to be filled with the electrochromic solution, and the liquid filling port is in communication with the middle space gap. The device box 4 is clamped on the material clamp 3 and the liquid filling port on the device box 4 is arranged downward, and the whole clamping assembly is placed into a liquid filling machine which has a container containing the electrochromic solution, so that the liquid filling port on the device box 4 clamped on the material clamp 3 is immersed in the electrochromic solution in the container to fill the electrochromic solution into the device box 4 by vacuum pressure. The device box 4 to be filled with liquid is clamped by the material clamp 3, which is not limited by the shape and size of the device box 4, that is, various device boxes 4 of different shapes and sizes can be clamped by the material clamp 3, and then the device boxes 4 of various shapes and sizes can be filled with liquid, which has stronger universality. Further specifically, the liquid filling machine has a support frame, the mounting frame 1 in the clamping assembly is used to be connected to the support frame, and the specific structures of the liquid filling machine and the device box 4 are all prior art known by those skilled in the art.

[0070] As shown in Figure 1 , 6 , the mounting frame 1 can include a left vertical plate 5 and a right vertical plate 6, and the left vertical plate 5 and the right vertical plate 6 are respectively used to be mounted and connected in the liquid filling machine.

[0071] One end of the suspension rod 2 is connected to the left vertical plate 5, and the other end of the suspension rod 2 is connected to the right vertical plate 6; specifically, the left vertical plate 5 and the right vertical plate 6 are used to be mounted and connected to the support frame in the liquid filling machine.

[0072] As shown in Figure 1 , 2 , 6, the suspension rod 2 can include a left telescopic rod body 7 and a right telescopic rod body 8.

[0073] The left telescopic rod body 7 is slidably connected to the right telescopic rod body 8.

[0074] One end of the left telescopic rod body 7 is connected to the left vertical plate 5.

[0075] One end of the right telescopic rod body 8 is connected to the right vertical plate 6.

[0076] Specifically, the size of the liquid filling machine is large or small, and the size of the support frame in the liquid filling machine is also different, and by relatively sliding the left telescopic rod body 7 and the right telescopic rod body 8, the distance between the left vertical plate 5 and the right vertical plate 6 can be adjusted, and then the distance between the left vertical plate 5 and the right vertical plate 6 is adapted to the size of the liquid filling machine, and then the left vertical plate 5 and the right vertical plate 6 are connected to the support frame in the liquid filling machine, and then different sizes of the liquid filling machine can be adapted.

[0077] In some embodiments, the left and right vertical plates 5 and 6 are respectively provided with clamping grooves 9, the left telescopic rod body 7 can be clamped and connected in the clamping groove 9 on the left vertical plate 5, and the right telescopic rod body 8 can be clamped and connected in the clamping groove 9 on the right vertical plate 6.

[0078] As shown in Figure 1 , 6 , the hanging rod 2 can be provided with at least two, and a plurality of material clamps 3 can be connected on the hanging rod 2, wherein part of the material clamps 3 are connected on the left telescopic rod body 7 in the hanging rod 2, and part of the material clamps 3 are connected on the right telescopic rod body 8 in the hanging rod 2; Specifically, a one-time vacuum liquid filling can fill electrochromic solution into a plurality of device box bodies 4, and the hanging rod 2 is provided with two in the embodiment.

[0079] As shown in Figure 2 , 3 , the material clamp 3 can include a clamp body 10, a hook 11 and a lifting ring 12;

[0080] The clamp body 10 is connected to the hook 11, and the clamp body 10 is used to clamp the device box body 4;

[0081] The hook 11 is connected to the lifting ring 12;

[0082] Part of the lifting rings 12 in the material clamps 3 are suspended and connected on the left telescopic rod body 7, and part of the lifting rings 12 in the material clamps 3 are suspended and connected on the right telescopic rod body 8.

[0083] As shown in Figure 2 , 3 , the left telescopic rod body 7 and the right telescopic rod body 8 are respectively and spaced apart provided with upward opening limiting holes 13, and the lifting ring 12 is connected with a limiting pin 14 for plug-in in the corresponding limiting hole 13, so as to prevent the lifting ring 12 from moving on the left telescopic rod body 7 and the right telescopic rod body 8.

[0084] As shown in Figure 2 , the chuck of the clamp body 10 is connected with a flexible pad 15, so as to prevent the clamp body 10 from directly contacting with the device box body 4, and the device box body 4 can be prevented from being clamped by the flexible pad 15, and the flexible pad 15 can be pearl wool in the embodiment.

[0085] As shown in Figure 6 , 7 , the jig for liquid filling of electrochromic device can further include a splash-proof protective cover, and the splash-proof protective cover can include:

[0086] A cover 23 is used to cover the outside of the clamping assembly, the lower end of the cover 23 is provided with a lower end opening 24, and the upper end of the cover 23 is provided with an upper end opening 25;

[0087] A cover plate 26 is rotatably connected to the cover 23 and is used to rotate to cover the upper end opening 25 and to rotate to open the upper end opening 25;

[0088] A pneumatic rod 27 is hingedly connected to the cover 23 at one end and is hingedly connected to the cover plate 26 at the other end. Specifically, when a low-viscosity electrochromic solution is used, the electrochromic solution will splash everywhere during vacuum filling. At this time, the cover 23 can be used to cover the outside of the clamping assembly and the cover plate 26 can be closed, thereby blocking the splashing of the electrochromic solution during vacuum filling, thereby ensuring the cleanliness of the filling machine cavity and preventing the electrochromic solution from contaminating the filling machine cavity. Further specifically, when a high-viscosity electrochromic solution is used, the degree of splashing of the electrochromic solution during vacuum filling is weak. At this time, the splash protection cover can be selected not to be used.

[0089] As shown in Figure 6 , 7 The side wall of the cover 23 is provided with a vent hole 28. Specifically, the lower end opening 24 of the cover 23 will be immersed in the electrochromic solution during vacuum filling, and the upper end opening 25 of the cover 23 will be covered by the cover plate 26. Therefore, the vent hole 28 is needed to balance the pressure inside the cover 23.

[0090] As described above, the device box 4 has a middle space gap and a filling port. The middle space gap needs to be filled with electrochromic solution, and the filling port is in communication with the middle space gap. The device box 4 is clamped on the material clamp 3 with the filling port of the device box 4 facing downward, and the clamping assembly is placed in the filling machine. The filling machine has a container containing electrochromic solution, and the filling port of the device box 4 clamped on the material clamp 3 is immersed in the electrochromic solution in the container to fill the electrochromic solution into the device box 4 through vacuum pressure. The device box 4 to be filled is clamped by the material clamp 3 and is not limited by the shape and size of the device box 4, that is, various device boxes 4 of different shapes and sizes can be clamped by the material clamp 3, thereby being applicable to filling various device boxes 4 of different shapes and sizes, and having stronger versatility.

[0091] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the present application, and it should be understood that the above-described specific embodiments are merely specific embodiments of the present application and are not used to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A jig for liquid filling of an electrochromic device, characterized by, The clamp assembly comprises a mounting frame (1), a hanging rod (2) and a material clamp (3); The mounting frame (1) is used for mounting connection in the liquid filling machine; The hanging rod (2) is connected to the mounting frame (1); The material clamp (3) is connected to the hanging rod (2) and used for clamping the device box body (4).

2. The jig for filling the electrochromic device according to claim 1, wherein the mounting frame (1) comprises a left vertical plate (5) and a right vertical plate (6), and the left vertical plate (5) and the right vertical plate (6) are respectively used for mounting connection in the liquid filling machine; One end of the hanging rod (2) is connected to the left vertical plate (5), and the other end of the hanging rod (2) is connected to the right vertical plate (6). The hanging rod (2) comprises a left telescopic rod body (7) and a right telescopic rod body (8); 3. The tool for liquid filling of an electrochromic device according to claim 2, wherein The left telescopic rod body (7) and the right telescopic rod body (8) are slidingly connected; One end of the left telescopic rod body (7) is connected to the left vertical plate (5); One end of the right telescopic rod body (8) is connected to the right vertical plate (6).

4. The jig for filling the electrochromic device according to claim 3, wherein the hanging rod (2) is provided with at least two; A plurality of the material clamps (3) are connected to the hanging rod (2), and part of the material clamps (3) are connected to the left telescopic rod body (7) in the hanging rod (2), and the other part of the material clamps (3) are connected to the right telescopic rod body (8) in the hanging rod (2). The material clamp (3) comprises a clamp body (10), a hook (11) and a lifting ring (12); The clamp body (10) is connected to the hook (11), and the clamp body (10) is used for clamping the device box body (4); 5. The tool for liquid filling of an electrochromic device according to claim 4, wherein The hook (11) is connected to the lifting ring (12); Part of the lifting rings (12) in the material clamps (3) are suspendedly connected to the left telescopic rod body (7), and the other part of the lifting rings (12) in the material clamps (3) are suspendedly connected to the right telescopic rod body (8). The left telescopic rod body (7) and the right telescopic rod body (8) are respectively provided with a plurality of upwardly open limiting holes (13) at intervals, and the lifting ring (12) is connected with a limiting pin (14) for being inserted into the corresponding limiting hole (13). A flexible pad (15) is connected to the clamp head of the clamp body (10).

6. The liquid-filling tool for electrochromic devices according to claim 5, wherein A splash-proof cover (16) is further included; 7. The tool for liquid filling of an electrochromic device according to claim 5, wherein One end of the left vertical plate (5) is provided with a first bearing portion (17), the other end of the left vertical plate (5) is provided with a second bearing portion (18), and an upwardly protruding left protruding portion (19) is arranged between the first bearing portion (17) and the second bearing portion (18); 8. The tool for liquid filling of an electrochromic device according to claim 2, wherein, One end of the right vertical plate (6) is provided with a third bearing portion (20), the other end of the right vertical plate (6) is provided with a fourth bearing portion (21), and an upwardly protruding right protruding portion (22) is arranged between the third bearing portion (20) and the fourth bearing portion (21). ​ ​ The splash-proof cover (16) is used to cover the clamping assembly and is supported on the first bearing part (17), the second bearing part (18), the third bearing part (20) and the fourth bearing part (21), and the left protruding part (19) and the right protruding part (22) extend into the splash-proof cover (16).

9. The tool for liquid filling of an electrochromic device according to claim 1, wherein, Further comprising a splash-proof protective cover, the splash-proof protective cover comprises: a cover shell (23) used to cover the outside of the clamping assembly, a lower end of the cover shell (23) has a lower end opening (24), an upper end of the cover shell (23) has an upper end opening (25); a cover plate (26) rotatably connected to the cover shell (23) and used to rotate to cover the upper end opening (25) and used to rotate to open the upper end opening (25); a pneumatic lever (27) having one end hinged to the cover shell (23) and the other end hinged to the cover plate (26).

10. The tool for liquid filling of an electrochromic device according to claim 9, wherein, Ventilation holes (28) are arranged on the side wall of the cover shell (23).

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