Liquid filling method and device for electrochromic device

By setting specific process holes on the device box of the electrochromic device, and using inflation and exhaust devices to control the injection and discharge of gas and liquid, the problems of high filling costs and poor adaptability in the prior art are solved, and a more efficient and economical filling process is achieved.

CN119535852APending Publication Date: 2025-02-28FENSHIPU CO LTD
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Patent Information

Application Number
CN202311108929.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-08-30
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

The liquid filling method of existing electrochromic devices is costly and difficult to adapt to larger size devices.

Method used

Using a liquid filling method of an electrochromic device, by setting a first process hole and a second process hole on the device box, an inflatable device is used to fill the device box with inert gas, and then the electrochromic liquid is poured into the device with set parameters through the liquid filling device, and the vacuum degree is controlled by the exhaust device until the device box is filled with liquid. Finally, the filling process is completed through pressure relief and sealing operations.

Benefits of technology

This method can adapt to larger size devices, reduces the need for vacuum, thereby saving costs, and reduces bubble residual rate and improves yield by controlling vacuum and exhaust operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a liquid filling method and device for an electrochromic device, and the method comprises the steps: placing a device box to be subjected to liquid filling operation on a working surface, and enabling one surface, which is provided with a first process hole and a second process hole, of the device box to face upwards; then inert gas is filled into the device box through the first process hole, and the gas filling operation is stopped until the preset duration is reached; filling electrochromic liquid into the device box through the second process hole according to set liquid filling parameters, exhausting the device box through the first process hole and keeping a preset vacuum degree, and stopping liquid filling and exhausting operation until the device box is filled with the electrochromic liquid; then the first process hole and the second process hole are communicated with the atmosphere until the pressure at the first process hole and the pressure at the second process hole are the same as the external atmospheric pressure; and finally, the first process hole and the second process hole are sealed. According to the liquid filling method and device, the residual rate of bubbles is greatly reduced, the process is simple, and the liquid filling cost of the electrochromic device is greatly reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing electrochromic devices, and more specifically, to a liquid filling method and device for electrochromic devices. Background Art

[0002] Smart photochromic glass refers to glass that changes its optical properties under certain conditions such as light, temperature, electric field or current, and changes accordingly with the change of conditions. When the applied conditions disappear, it can reversibly return to the initial state. It is also called dimming glass. Photochromic glass changes its own transmission characteristics as the external environment changes, and can effectively control the solar radiation energy, thereby achieving the purpose of energy saving. Photochromic glass can be divided into photochromic glass, thermochromic glass, electrochromic glass, etc. according to the mechanism of glass property change. Electrochromic glass has the advantages of low driving voltage, rich colors, and a large optical control range, and has broad market application prospects.

[0003] The most critical process in the production of electrochromic glass is filling the device box with liquid. The existing filling methods mainly use the liquid crystal filling method, which mainly includes vacuum cavity filling and ODF process. The vacuum cavity filling method is generally suitable for small-sized devices, such as the color-changing rearview mirror on a car. It is very difficult to make the size larger, and the cost is high. The filling time is long. The ODF process equipment is complex and expensive, and it is not easy to remove bubbles.

[0004] In summary, how to solve the problem of high cost of filling electrochromic devices has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides a method and device for filling an electrochromic device, so as to solve the problem of high cost of filling an electrochromic device.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A liquid filling method for an electrochromic device, the liquid filling method comprising:

[0008] Placing the device box, placing the device box to be filled with liquid on the work surface, with the side of the device box having the first process hole and the second process hole facing upward;

[0009] Replace the gas in the device box by filling the device box with inert gas through the first process hole until a preset time is reached and then stop the filling operation;

[0010] Filling, filling the electrochromic liquid into the device box through the second process hole with the set filling parameters, and at the same time exhausting the device box through the first process hole and maintaining a preset vacuum degree until the device box is filled with the electrochromic liquid and the filling and exhausting operations are stopped;

[0011] Relieving pressure, connecting the first process hole and the second process hole to the atmosphere until the pressures at the first process hole and the second process hole are the same as the external atmospheric pressure;

[0012] Sealing: sealing the first process hole and the second process hole.

[0013] Optionally, while performing the pressure relief and sealing operations, the method further includes:

[0014] A purging operation is performed to purge the surfaces of the first process hole and the second process hole with an inert gas during the pressure relief process until the sealing operation is completed.

[0015] Optionally, the liquid filling operation is implemented by a liquid filling device, and before performing the liquid filling operation, the method further includes:

[0016] Expel air bubbles from the filling device.

[0017] Optionally, in the liquid filling method, discharging bubbles in the liquid filling device includes:

[0018] Disconnecting the first one-way valve connected to the rodless chamber of the liquid filling cylinder of the liquid filling device and the liquid infusion pipeline connected to the liquid filling nozzle of the liquid filling device;

[0019] Installing a section of auxiliary bubble exhaust pipe on the first one-way valve;

[0020] Invert the injection cylinder and push the piston rod of the injection cylinder until the electrochromic liquid is discharged from the auxiliary bubble discharge tube;

[0021] Reinstall the injection cylinder to the working position and connect it to the infusion pipeline;

[0022] The piston rod of the liquid injection cylinder is pushed until the electrochromic liquid is discharged from the liquid injection nozzle.

[0023] Optionally, the liquid filling method further comprises, after completing the sealing operation:

[0024] A cleaning device, which cleans the liquid filling device through a first cleaning component and cleans the inflation device and the exhaust device through a second cleaning component;

[0025] The resetting device resets the inflation device, the exhaust device and the liquid filling device to an initial state.

[0026] Compared with the background technology introduction, the above-mentioned method for filling the electrochromic device is as follows: the device box to be filled with liquid is placed on the working surface, with the side of the device box having the first process hole and the second process hole facing upward; then, an inert gas is filled into the device box through the first process hole until a preset time is reached and the filling operation is stopped; thereafter, the electrochromic liquid is filled into the device box through the second process hole with set filling parameters, and at the same time, the device box is vented through the first process hole and a preset vacuum degree is maintained until the device box is filled with the electrochromic liquid and the filling and venting operations are stopped; then, the first process hole and the second process hole are connected to the atmosphere until the pressure at the first process hole and the second process hole are the same as the external atmospheric pressure; finally, the first process hole and the second process hole are sealed to complete the filling operation of the device box. Compared with the traditional vacuum chamber filling method, this filling method can adapt to larger devices, and there is no need to evacuate the entire device box to a higher vacuum degree, which greatly saves costs. In addition, by setting the filling parameters and coordinating the exhaust and vacuum control to inject the electrochromic liquid into the device box, when the electrochromic liquid is about to fill the device box, the residual bubbles can be removed in time until the electrochromic liquid is filled. It is difficult for the device box to hide bubbles, which greatly reduces the residual rate of bubbles and improves the yield rate. In addition, the process is simple, which greatly reduces the cost of filling the electrochromic device.

[0027] In addition, the present invention also provides a liquid filling device for an electrochromic device, comprising:

[0028] An air filling device, used for filling an inert gas into a device box of the electrochromic device to be manufactured to replace the air in the device box;

[0029] A liquid filling device, used to fill the electrochromic liquid into the device box according to set liquid filling parameters;

[0030] An exhaust device, used to exhaust the inert gas in the device box and control the vacuum degree in the device box when the electrochromic liquid is poured into the device box;

[0031] Among them, a first process hole and a second process hole are provided on the surface of the device box opposite to the placement surface during filling, the inflation device and the exhaust device are connected to the inner cavity of the device box through the first process hole, and the filling device is connected to the inner cavity of the device box through the second process hole.

[0032] Since the aforementioned filling method of the electrochromic device has the aforementioned technical effects, and the filling device of the electrochromic device inherits the core idea of ​​the aforementioned filling method, the two belong to a general inventive concept, so the filling device also inherits the technical effects of the aforementioned filling method, which will not be repeated here.

[0033] Optionally, the liquid filling device comprises a liquid filling component and a liquid filling actuator, the liquid filling component comprises a first adjustment mechanism and a liquid filling nozzle provided on the first adjustment mechanism in a sliding fit manner along the Z-axis direction, the liquid filling nozzle being adapted to be connected and communicated with the second process hole; the liquid filling actuator is communicated with the liquid filling nozzle and is used to control the liquid filling nozzle to perform a liquid filling operation;

[0034] The Z-axis direction is a direction perpendicular to a surface of the device box opposite to the surface on which the device box is placed during filling.

[0035] Optionally, the first adjustment mechanism includes a first adjustment base, a first slide table slidably matched with the first adjustment base along the Z-axis direction, and a first adjustment portion for driving the first slide table to move, and the liquid filling nozzle is arranged on the first slide table.

[0036] Optionally, the liquid filling nozzle is mounted on the first slide table via a first elastic buffer mechanism, so that the liquid filling nozzle can have a first preset elastic buffer stroke along the Z-axis direction relative to the first slide table.

[0037] Optionally, the first elastic buffer mechanism includes a first bottom plate fixedly arranged on the first slide, a first buffer block arranged above the first bottom plate, and a first elastic member arranged above the first buffer block, wherein the first buffer block can move along the Z-axis direction relative to the first bottom plate, the first elastic member is used to elastically press the first buffer block against the first bottom plate, the liquid filling nozzle is arranged on the first buffer block, and the first bottom plate forms a avoidance for the liquid filling nozzle.

[0038] Optionally, a first connecting channel is provided in the middle of the first buffer block, a first end of the first connecting channel is connected to the infusion pipeline of the filling actuator, and a second end of the first connecting channel is connected to the filling nozzle.

[0039] Optionally, the first end of the first connecting channel is connected to the infusion pipeline via a thread;

[0040] And / or, the second end of the first connecting channel is provided with a first stepped hole arranged concentrically with the outlet of the first connecting channel, and the filling nozzle is provided with a first positioning boss matched with the first stepped hole.

[0041] Optionally, a first guide column arranged along the Z-axis direction is provided on the first base plate, and a first guide sleeve slidably matched with the first guide column is provided on the first buffer block.

[0042] Optionally, the first elastic member is a first compression spring, one end of the first compression spring abuts against the head of the first bolt, and the other end of the first compression spring abuts against the first buffer block.

[0043] Optionally, the number of the first bolts is at least two; and / or a first countersunk hole matched with the head of the first bolt is provided on the top of the first buffer block.

[0044] Optionally, the liquid filling nozzle includes a first main body and a first threaded disk arranged on the first main body, a liquid filling center hole is arranged in the middle of the first main body, a first sink connected to the liquid filling center hole is arranged on the lower end surface of the first main body, the first threaded disk includes a first base and a first threaded column arranged on the first base, the first base is adapted to the first sink and forms a liquid outlet slit, the first threaded column is threadedly connected to the liquid filling center hole, and a liquid outlet channel for draining the electrochromic liquid in the liquid filling center hole to the liquid outlet slit is arranged in the first threaded column.

[0045] Optionally, the liquid filling actuator includes a liquid filling cylinder and a liquid filling drive mechanism, the liquid filling cylinder is used to inject electrochromic liquid into the liquid filling nozzle, and the liquid filling drive mechanism is used to drive the liquid filling cylinder to perform the liquid filling action.

[0046] Optionally, the injection cylinder includes a cylinder body and a piston rod slidably matched with the cylinder body, the rodless chamber of the cylinder body is provided with a first one-way valve, and the injection drive mechanism is used to drive the piston rod to slide so as to transport the electrochromic liquid in the rodless chamber from the first one-way valve to the injection nozzle through the infusion pipeline.

[0047] Optionally, a third guide sleeve is provided on the outer side of the cylinder body, and a third guide column is provided on the outer end of the piston rod, and the third guide column and the third guide sleeve are slidably matched to guide the sliding of the piston rod.

[0048] Optionally, the liquid injection drive mechanism is configured as an electric propulsion mechanism.

[0049] Optionally, the electric propulsion mechanism includes a bracket and a driving unit arranged on the bracket, the driving unit includes a driving motor, a transmission mechanism and a screw mechanism, the screw mechanism includes a screw and a nut threaded with the screw, the nut is rotatably arranged on the bracket, the driving motor is used to drive the nut to rotate through the transmission mechanism to drive the screw to move linearly, the cylinder body of the injection cylinder is fixedly arranged on the bracket, and the piston rod is coaxially arranged with the screw, so that the screw drives the piston rod to slide relative to the cylinder body.

[0050] Optionally, the inflation device and the exhaust device share a ventilation component, the inflation device includes an inflation pipeline connected to the ventilation component and a first control valve arranged on the inflation pipeline, the exhaust device includes an exhaust pipeline and a vacuum pipeline respectively connected to the ventilation component, a second control valve is arranged on the exhaust pipeline, and a third control valve is arranged on the vacuum pipeline, and the ventilation component is used to be adapted to be connected and coupled with the first process hole.

[0051] Optionally, the ventilation component includes a second adjustment mechanism and a ventilation nozzle arranged on the second adjustment mechanism in a sliding fit manner along the Z-axis direction, and the ventilation nozzle is used to be adapted to be connected and communicated with the first process hole;

[0052] The Z-axis direction is a direction perpendicular to a surface of the device box opposite to the surface on which the device box is placed during filling.

[0053] Optionally, the second adjustment mechanism includes a second adjustment base, a second slide table slidably matched with the second adjustment base along the Z-axis direction, and a second adjustment part for driving the second slide table to move, and the ventilation nozzle is arranged on the second slide table.

[0054] Optionally, the ventilation nozzle is mounted on the second slide table via a second elastic buffer mechanism, so that the ventilation nozzle can have a second preset elastic buffer stroke along the Z-axis direction relative to the second slide table.

[0055] Optionally, the second elastic buffer mechanism includes a second base plate fixedly arranged on the second slide, a second buffer block arranged above the second base plate, and a second elastic member arranged above the second buffer block, wherein the second buffer block can move along the Z-axis direction relative to the second base plate, and the second elastic member is used to elastically press the second buffer block against the second base plate, and the ventilation nozzle is arranged on the second buffer block, and the second base plate forms a avoidance for the ventilation nozzle.

[0056] Optionally, a second connecting channel is provided in the middle of the second buffer block, and the first end of the second connecting channel is connected to the inflation pipeline, the exhaust pipeline and the vacuum pipeline respectively, and the second end of the second connecting channel is connected to the ventilation nozzle.

[0057] Optionally, a second step hole coaxially arranged with the vent of the second connecting channel is provided at the second end of the second connecting channel, and a second positioning boss matched with the second step hole is provided on the vent nozzle.

[0058] Optionally, a second guide column arranged along the Z-axis direction is provided on the second base plate, and a second guide sleeve slidably matched with the second guide column is provided on the second buffer block.

[0059] Optionally, the second elastic member is a second compression spring, one end of the second compression spring abuts against the head of the second bolt, and the other end of the second compression spring abuts against the second buffer block.

[0060] Optionally, the number of the second bolts is at least two; and / or, a second countersunk hole matching the head of the second bolt is provided on the top of the second buffer block.

[0061] Optionally, the ventilation nozzle includes a second main body and a second threaded disk arranged on the second main body, a ventilation center hole is arranged in the middle of the second main body, a second sink groove connected to the ventilation center hole is arranged on the lower end surface of the second main body, the second threaded disk includes a second chassis and a second threaded column arranged on the second chassis, the second chassis is adapted to the second sink groove and forms a ventilation slit, the second threaded column is threadedly connected to the ventilation center hole, and a ventilation channel connected to the ventilation slit is arranged in the second threaded column.

[0062] Optionally, it further comprises a frame, wherein the frame comprises a workbench for placing the device box, and the workbench has a horizontal work surface which is flush with the placement surface of the device box when filling liquid.

[0063] Optionally, a cleaning system and / or a purification system is also included;

[0064] Wherein, the cleaning system comprises a first cleaning component and a second cleaning component arranged on the horizontal work surface, the first cleaning component is used to dock with the component to be cleaned of the filling device to perform a cleaning operation, and the second cleaning component is used to dock with the component to be cleaned of the inflation device and the exhaust device to perform a cleaning operation;

[0065] The purification system is connected to the charging device and the exhaust device through a purification pipe control valve to perform an exhaust purification operation.

[0066] Optionally, the frame includes a driving mechanism, the driving mechanism includes a first guide rail arranged near both sides of the workbench, a first gantry and a second gantry slidingly matched with the first guide rail along the X-axis direction, the inflation device and the exhaust device are both installed on the first gantry in a slidingly matched manner along the Y-axis direction, and the liquid filling device is installed on the second gantry in a slidingly matched manner along the Y-axis direction;

[0067] The X-axis direction and the Y-axis direction are perpendicular to each other and are parallel to a surface of the device box opposite to the placement surface during liquid filling.

[0068] Optionally, the second gantry is provided with a second guide rail and a third guide rail, the second guide rail is provided on the top surface of the second gantry, and the third guide rail is provided on a side of the second gantry opposite to the first gantry;

[0069] The liquid filling actuator of the liquid filling device is slidably matched with the second guide rail along the Y-axis direction, and the liquid filling component of the liquid filling device is slidably matched with the third guide rail along the Y-axis direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0071] Figure 1 A schematic diagram of the top structure of a device box provided in an embodiment of the present invention;

[0072] Figure 2 for Figure 1 AA cross-sectional structural diagram;

[0073] Figure 3 A schematic diagram of the axial structure of a liquid filling device for an electrochromic device provided in an embodiment of the present invention;

[0074] Figure 4 A schematic diagram of the top view of the liquid filling device of the electrochromic device provided in an embodiment of the present invention;

[0075] Figure 5 A schematic diagram of the front view of the liquid filling device of the electrochromic device provided in an embodiment of the present invention;

[0076] Figure 6 A schematic diagram of the structure of the liquid filling device of the electrochromic device provided in an embodiment of the present invention connected to the corresponding system;

[0077] Figure 7 A left-side structural schematic diagram of a liquid filling device for an electrochromic device provided in an embodiment of the present invention;

[0078] Figure 8 A schematic diagram of the structure of a liquid injection drive mechanism provided in an embodiment of the present invention;

[0079] Fig. 9 for Figure 8 BB cross-sectional structure diagram;

[0080] Fig.10 A schematic diagram of the structure of a liquid filling component provided in an embodiment of the present invention;

[0081] Fig.11 for Fig.10 Schematic diagram of CC cross-sectional structure;

[0082] Fig.12 A schematic diagram of the structure of a liquid injection cylinder provided in an embodiment of the present invention;

[0083] Fig.13 for Fig.12 DD cross-sectional structure diagram;

[0084] Fig.14 A schematic diagram of the structure of a threaded disk provided in an embodiment of the present invention;

[0085] Fig.15 for Fig.14 EE cross-sectional structure diagram;

[0086] Fig.16 A schematic diagram of the structure of a rack provided in an embodiment of the present invention;

[0087] Fig.17 for Fig.16 Schematic diagram of the G-direction structure;

[0088] Fig.18 A schematic diagram of the structure of a ventilation component provided by an embodiment of the present invention;

[0089] Fig.19 for Fig.18 FF cross-sectional structure diagram;

[0090] Fig. 20 The present invention provides a flowchart of a liquid filling method according to an embodiment of the present invention.

[0091] in, Figure 1-Figure 20 middle:

[0092] First process hole 1;

[0093] Frame glue 2;

[0094] Second process hole 3;

[0095] Gasket 4;

[0096] Upper glass plate 5;

[0097] Lower glass plate 6;

[0098] Liquid injection cylinder 7, piston rod 701, cylinder body 702, first sealing ring 703, third guide sleeve 704, third guide column 705, outer end top plate 706, first non-return valve 707, first pipe joint 708, first bushing 709, rodless chamber 710;

[0099] Injection drive mechanism 8, bracket 801, drive motor 802, support plate 803, first sliding seat 804, mounting seat 805, jacking screw 806, synchronous belt 807, main synchronous pulley 808, first fixing plate 809, second fixing plate 810, force sensor 811, top cylinder 812, slave synchronous pulley 813, rolling bearing 814, bearing end cover 815, linear bearing 816, guide shaft 817, screw rod 818, nut 819, push plate 820, proximity switch 821;

[0100] Frame 9, bottom bracket 901, second gantry 902, first gantry 903, first guide rail 904, first slider 905, second slider 906, second guide rail 907, third slider 908, third guide rail 909, fourth slider 910, fourth guide rail 911, fifth slider 912;

[0101] Liquid filling component 10, first buffer block 1001, liquid filling nozzle 1002, second sealing ring 1003, third sealing ring 1004, first elastic member 1005, first guide column 1006, second pipe joint 1007, first back plate 1008, first transition plate 1009, first bottom plate 1010, first guide sleeve 1011, first adjustment base 1012, first threaded disk 1013;

[0102] Ventilation component 11, second buffer block 1101, vent nozzle 1102, fourth sealing ring 1103, fifth sealing ring 1104, second elastic member 1105, second guide column 1106, third pipe joint 1107, second back plate 1108, second transition plate 1109, second bottom plate 1110, second guide sleeve 1111, second adjustment base 1112, second threaded disk 1113;

[0103] Infusion line 12;

[0104] Ventilation line 13;

[0105] Device box 14;

[0106] Workbench 15;

[0107] Gas circuit system 16, compressed air valve 1601, third control 1602, first control valve 1603, second control 1604, purification pipe control valve 1605, pressure gauge 1606, three-way connector 1607;

[0108] A second cleaning component 17;

[0109] A first cleaning component 18;

[0110] Inverted injection cylinder 19;

[0111] Air compressor 20;

[0112] Vacuuming equipment 21;

[0113] Inert gas bottle 22;

[0114] A second one-way valve 23;

[0115] Purification system 24;

[0116] Control system 25. DETAILED DESCRIPTION

[0117] The core of the present invention is to provide a method and device for filling an electrochromic device, so as to solve the problem of high cost of filling an electrochromic device.

[0118] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0119] Reference Figure 1-Figure 19 As shown, the present invention specifically provides a liquid filling device for an electrochromic device, including an inflation device, a liquid filling device and an exhaust device, wherein the inflation device is used to fill an inert gas into a device box 14 of the electrochromic device to be manufactured to replace the air in the device box 14; the liquid filling device is used to fill the electrochromic liquid into the device box 14 according to the set liquid filling parameters; the exhaust device is used to discharge the inert gas in the device box 14 and control the vacuum degree in the device box 14 when the electrochromic liquid is filled into the device box 14; in addition, a first process hole 1 and a second process hole 3 are provided on the side of the device box 14 opposite to the placement side during liquid filling, the inflation device and the exhaust device are connected to the inner cavity of the device box 14 through the first process hole 1, and the liquid filling device is connected to the inner cavity of the device box 14 through the second process hole 3.

[0120] In actual application, the liquid filling device of the electrochromic device is arranged by placing the device box 14 to be filled with liquid on a working surface so that the side of the device box 14 having the first process hole 1 and the second process hole 3 faces upward; then the gas filling device is connected to the first process hole 1 and the gas filling device is controlled to fill the device box 14 with inert gas; after a predetermined period of time, the liquid filling component is connected to the second process hole 3, at which time the gas filling device is closed, the exhaust device is opened, and the liquid filling device is controlled to fill the device box 14 with electrochromic liquid according to the set liquid filling parameters, and at the same time the exhaust device is controlled to exhaust the device box 14 and maintain a preset vacuum degree, until the device box 14 is filled with electrochromic liquid, the liquid filling device is controlled to stop filling and the exhaust device is controlled to stop evacuating; the liquid filling component and the vent are removed. The device box 14 is used to release the overpressure state in the device box 14, and the first process hole 1 and the second process hole 3 are purged with inert gas at the same time, and the sealing operation is completed. Since then, the filling is completed. Compared with the traditional vacuum chamber filling method, it can adapt to devices of larger sizes, and there is no need to evacuate the entire device box 14 to a higher vacuum degree, which greatly saves costs. In addition, the device box 14 is injected with electrochromic liquid by setting the filling parameters of the filling device and coordinating with the preset vacuum degree control of the exhaust device. When the electrochromic liquid is about to fill the device box 14, the residual bubbles can be drawn away in time until the electrochromic liquid is filled. It is difficult for the device box 14 to hide bubbles, which greatly reduces the residual rate of bubbles and improves the yield rate. The process is simple, which greatly reduces the cost of filling the electrochromic device. In addition, because the whole process is completed under inert gas, the inert gas is preferably argon, including the gas used for replacement in the device box 14 and the gas for sealing and purging, the color-changing liquid is isolated from water and oxygen as much as possible, and the stability of the device box is improved.

[0121] It should be noted that, refer to Figure 1 and Figure 2 As shown, the device box 14 is generally composed of at least two layers of glass, and is a device box with a hollow structure that is sealed all around; the device box 14 can form an electrochromic device by filling the electrochromic material. Under the action of an external electric field, the electrochromic material undergoes an oxidation-reduction reaction, and the appearance is a reversible change in color and transparency, so that the sunlight passing through the glass can be controlled at will. Among them, the electrochromic material generally consists of a color-changing material layer, an electrolyte layer, and an ion storage layer. When the device box 14 is a glass device box, its structure can specifically include an upper glass plate 5, a lower glass plate 6, and a gasket 4 arranged between the upper glass plate 5 and the lower glass plate 6. The frame positions of the upper glass plate 5 and the lower glass plate 6 are fixed by a frame glue 2 to form a closed chamber. Among them, the upper glass plate 5 is provided with a first process hole 1 and a second process hole 3 for completing the filling operation. It can be understood that the "upper" and "lower" in the upper glass plate 5 and the lower glass plate 6 are defined according to the placement orientation of the device box 14 during the filling operation.

[0122] In some specific embodiments, reference Figure 3 Combination Figure 7-Figure 15 As shown, the above-mentioned filling device may specifically include a filling component 10 and a filling actuator, wherein the filling component 10 may specifically include a first adjustment mechanism and a filling nozzle 1002 arranged on the first adjustment mechanism in a sliding manner along the Z-axis direction, and the filling nozzle 1002 is used to be adapted to be connected and communicated with the second process hole 3; the filling actuator is connected to the filling nozzle 1002 and is used to control the filling nozzle 1002 to perform the filling operation; it should be noted that the Z-axis direction is defined as a direction perpendicular to the surface of the device box 14 opposite to the placement surface during filling. By designing the filling device into a structural form of the above-mentioned filling component 10 and the filling actuator, the two can be connected through the infusion pipeline 12, which is convenient for the independent drive control of the filling component 10 and the filling actuator, thereby making the driving mode more flexible; in addition, the filling component 10 can adjust the Z-axis direction position of the filling nozzle 1002 through the first adjustment mechanism, which is more convenient for the filling nozzle 1002 to fit the top surface of the device box 14. Of course, it is understandable that the above-mentioned liquid filling component 10 and the liquid filling actuator can also be designed as an integrated structure, but the driving structure will be relatively complicated.

[0123] In a further embodiment, referring to Figure 3 Combination Figure 7-Figure 15 As shown, the first adjustment mechanism may specifically include a first adjustment base 1012, a first slide that slides with the first adjustment base 1012 in the Z-axis direction, and a first adjustment unit for driving the first slide to move, and the liquid filling nozzle 1002 is disposed on the first slide. The first adjustment unit drives the first slide to slide relative to the first adjustment base 1012 in the Z-axis direction, thereby driving the liquid filling nozzle 1002 to move in the Z-axis direction, and finally enables the liquid filling nozzle 1002 to fit closely with the top surface of the device box 14. The structure of this first adjustment mechanism is simpler.

[0124] In a further embodiment, referring to Figure 3 Combination Figure 7-Figure 15 As shown, the liquid filling nozzle 1002 can also be installed on the first slide table through a first elastic buffer mechanism, so that the liquid filling nozzle 1002 can have a first preset elastic buffer stroke relative to the first slide table along the Z-axis direction. By designing the first elastic buffer mechanism, when the liquid filling nozzle 1002 is attached to the top surface of the device box 14, the pressing force is easier to control, which can effectively avoid the upper glass plate 5 of the device box 14 from being broken due to excessive pressure.

[0125] In some specific embodiments, reference Figure 3 Combination Figure 7-Figure 15As shown, the first elastic buffer mechanism may specifically include a first bottom plate 1010 fixedly arranged on the first slide, a first buffer block 1001 arranged above the first bottom plate 1010, and a first elastic member 1005 arranged above the first buffer block 1001, wherein the first buffer block 1001 can move relative to the first bottom plate 1010 along the Z-axis direction, the first elastic member 1005 is used to elastically press the first buffer block 1001 against the first bottom plate 1010, the liquid filling nozzle 1002 is arranged on the first buffer block 1001, and the first bottom plate 1010 forms a avoidance for the liquid filling nozzle 1002, for example, a avoidance opening is arranged on the first bottom plate 1010. Specifically, a first connecting channel may be arranged in the middle of the first buffer block 1001, the first end of the first connecting channel is connected to the infusion pipeline 12 of the liquid filling actuator, and the second end of the first connecting channel is connected to the liquid filling nozzle 1002. The structural form of the first elastic buffer mechanism is simpler and easier to process and manufacture.

[0126] It should be noted that the first end of the first connecting channel can be connected to the infusion pipeline 12 by a threaded connection, or other connection methods commonly used by those skilled in the art, such as a connector, etc., which are not specifically limited here; in addition, in order to facilitate the docking of the first buffer block 1001 and the filling nozzle 1002, the second end of the first connecting channel can be provided with a first step hole arranged concentrically with the outlet of the first connecting channel, and the filling nozzle 1002 is provided with a first positioning boss adapted to the first step hole. The first positioning boss cooperates with the first step hole, so that the installation and positioning between the two are more convenient.

[0127] In some other specific embodiments, referring to Figure 3 Combination Figure 7-Figure 15 As shown, in order to make the first buffer block 1001 move more stably and reliably along the Z-axis direction relative to the first base plate 1010, a first guide column 1006 arranged along the Z-axis direction can be provided on the first base plate 1010, and a first guide sleeve 1011 slidably matched with the first guide column 1006 can be provided on the first buffer block 1001. Among them, the first guide column 1006 can specifically include a threaded connection portion threadedly connected to the first base plate 1010 and a guide column body slidably matched with the first guide sleeve 1011, and the first guide sleeve 1011 can be specifically configured as a first guide through hole matched with the guide column body. Of course, it can be understood that in actual application, it can also be designed into other sliding structure forms, for example, a track is provided on the first slide, and a structure form of a slide groove slidably connected to the track is provided on the first buffer block 1001, etc., which is not further limited here.

[0128] It should be noted that the first elastic member 1005 may be specifically a first compression spring, one end of which abuts against the head of the first bolt, and the other end of which abuts against the first buffer block 1001. By designing such a structural form, the installation of the first elastic member 1005 is simpler and convenient for assembly.

[0129] In some specific implementation schemes, the number of the first bolts is preferably designed to be at least two, for example, four. By designing this structural form, the movement of the first buffer block 1001 along the Z-axis direction is more stable and reliable. In addition, the top of the first buffer block 1001 can be provided with a first countersunk hole that matches the head of the first bolt. By designing the first countersunk hole, the first elastic member 1005 can be at least partially embedded in the countersunk hole, which, on the one hand, plays a certain guiding role in the compression movement of the first compression spring, and on the other hand, plays a certain protective role for the first compression spring.

[0130] In some specific embodiments, reference Figure 3 Combination Figure 7-Figure 15 As shown, the above-mentioned liquid filling nozzle 1002 may specifically include a first main body and a first threaded disk 1013 disposed on the first main body, a liquid filling center hole is disposed in the middle of the first main body, a first sink connected to the liquid filling center hole is disposed on the lower end surface of the first main body, the first threaded disk 1013 includes a first chassis and a first threaded column disposed on the first chassis, the first chassis is adapted to the first sink and forms a liquid outlet slit, the first threaded column is threadedly connected to the liquid filling center hole, and a liquid outlet channel for draining the electrochromic liquid in the liquid filling center hole to the liquid outlet slit is disposed in the first threaded column. By designing the liquid filling nozzle 1002 into this structural form, the liquid flowing through the liquid filling nozzle 1002 has a certain liquid sealing function, that is, the liquid with a certain viscosity will not flow out freely due to its own weight.

[0131] In addition, refer to Figure 3 Combination Figure 7-Figure 15As shown, the above-mentioned liquid filling component 10 may further include a second sealing ring 1003, a third sealing ring 1004, a second pipe joint 1007, a first back plate 1008 and a first transition plate 1009, wherein the second sealing ring 1003 is used to be embedded in a first groove on the lower end surface of the liquid filling nozzle 1002, and the first groove is designed on the lower end surface of the liquid filling nozzle 1002 corresponding to the periphery of the liquid outlet, and the first groove is preferably designed in the form of a dovetail groove structure. By designing in this structure, the second sealing ring 1003 is not easy to fall off after being installed in the first groove. The second sealing ring 1003 can make the filling nozzle 1002 fit with the upper glass plate 5 of the device box 14 to achieve sealing; the third sealing ring 1004 is used to be embedded in the second groove on the upper end surface of the filling nozzle 1002, and the second groove is designed at the periphery of the liquid inlet corresponding to the upper end surface of the filling nozzle 1002. The third sealing ring 1004 makes the filling nozzle 1002 and the first buffer block 1001 sealed; the second pipe joint 1007 is mainly used to facilitate the docking of the first buffer block 1001 with the infusion pipeline 12; the first back plate 1008 is mainly fixed on the corresponding translation device for facilitating the installation of the filling component 10, for example, on the corresponding sliding pair on the second gantry 902 on the frame 9 described later; the first transition plate 1009 is arranged on both sides of the first buffer block 1001, mainly to limit and install both sides of the first buffer block 1001, and to increase the structural strength.

[0132] In some specific embodiments, reference Figure 3 Combination Figure 7-Figure 15 As shown, the above-mentioned liquid filling actuator may specifically include a liquid filling cylinder 7 and a liquid filling drive mechanism 8. The liquid filling cylinder 7 is used to inject the electrochromic liquid into the liquid filling nozzle 1002, and the liquid filling drive mechanism 8 is used to drive the liquid filling cylinder 7 to perform the liquid filling action. By designing the liquid filling actuator into the structural form of the liquid filling cylinder 7 and the liquid filling drive mechanism 8, the liquid filling parameters during the liquid filling process are easier to ensure.

[0133] The injection cylinder 7 may specifically include a cylinder body 702 and a piston rod 701 slidably matched with the cylinder body 702, a rodless chamber 710 of the cylinder body 702 is provided with a first one-way valve 707, and the injection drive mechanism 8 is used to drive the piston rod 701 to slide so as to deliver the electrochromic liquid in the rodless chamber 710 from the first one-way valve 707 to the injection nozzle 1002 through the infusion pipeline 12. By designing the injection cylinder into this structural form, due to the presence of the first one-way valve 707, it is possible to effectively prevent the backflow of the fluid from affecting the quality of the color-changing liquid.

[0134] In a further implementation scheme, in order to ensure the stability of the sliding movement of the piston rod 701 relative to the cylinder body 7, a third guide sleeve 704 can be provided on the outer side of the cylinder body 7, and a third guide column 705 is provided on the outer end of the piston rod 701. The third guide column 705 slides with the third guide sleeve 704 to guide the sliding of the piston rod 701.

[0135] In addition, the injection cylinder 7 generally also includes a first sealing ring 703, an outer end top plate 706, a first pipe joint 708 and a first bushing 709, wherein the first sealing ring 703 is arranged between the matching surfaces of the piston rod 701 and the inner wall of the cylinder body 702, so that the rodless cavity 710 forms a closed chamber; the outer end top plate 706 is arranged at the outer end of the piston rod 701, so that the driving matching relationship between the injection drive mechanism 8 and the piston rod 701 can be easier to achieve; the main purpose of the first pipe joint 708 is to facilitate the connection between the first one-way valve 707 and the infusion pipeline 12; the main purpose of the first bushing 709 is to enhance the wear resistance of the third guide sleeve 704 and reduce the friction resistance.

[0136] In some other specific implementation schemes, the above-mentioned injection drive mechanism 8 can be specifically configured as an electric propulsion mechanism. By designing the structure of the electric propulsion mechanism, the control of the injection drive mechanism 8 is more convenient. Of course, it can be understood that the electric propulsion mechanism is only an example of the injection drive mechanism 8 in the embodiment of the present invention. In actual application, it can also be designed into other structural forms, which are not further limited here.

[0137] In a further embodiment, referring to Figure 7-Figure 9 The electric propulsion mechanism may specifically include a bracket 801 and a driving unit disposed on the bracket 801, the driving unit including a driving motor 802, a transmission mechanism and a lead screw mechanism, the lead screw mechanism including a lead screw 818 that slides with the bracket 801 along the axial direction of the piston rod 701 and a nut 819 that threadably cooperates with the lead screw 818, the nut 819 being rotatably disposed on the bracket 801, the driving motor 802 is used to drive the nut 819 to rotate through the transmission mechanism to drive the lead screw 818 to move linearly, the cylinder body 802 of the injection cylinder 7 is fixedly disposed on the bracket 801, and the piston rod 701 is coaxially arranged with the lead screw 818, so that the lead screw 818 drives the piston rod 701 to slide relative to the cylinder body 702. By designing the electric propulsion mechanism into the structural form of the driving motor 802, the transmission mechanism and the lead screw mechanism, the linear feed amount control of the electric propulsion mechanism is made more stable and reliable. Of course, it is understandable that in the above practical application process, other electric propulsion mechanism structures can also be designed, such as a linear motor driven push rod structure, etc., and no further specific limitations are made here.

[0138] It should be noted that, refer to Figure 7-Figure 9In addition to the bracket 801, the drive motor 802, the screw 818 and the nut 819, the above-mentioned injection drive mechanism 8 generally also includes a support plate 803, a first sliding seat 804, a mounting seat 805, a tightening screw 806, a synchronous belt 807, a main synchronous pulley 808, a first fixed plate 809, a second fixed plate 810, a force sensor 811, a top cylinder 812, a slave synchronous pulley 813, a rolling bearing 814, a bearing end cover 815, a linear bearing 816, a guide shaft 817, a push plate 820 and a proximity switch 821, wherein the bracket 801 is fixed to the upper surface of the first sliding seat 804 by screws, the first sliding seat 804 is fixed to the translation device, such as the corresponding sliding pair on the second gantry 902 on the frame 9 involved later, the first fixed plate 809 is horizontally fixed to the bracket 801 at approximately the middle position, the drive motor 802 is fixed on one side of the first fixed plate 809, and the second fixed plate is fixed on the opposite side. Plate 810, linear bearings 816 are fixed on both sides of the second fixed plate 810, the outer ring of the rolling bearing 814 is fixed in the middle, the outer cylindrical surface of the nut 819 is fixed in the inner ring of the rolling bearing 814, and the bearing end cover 815 presses the upper end surface of the rolling bearing 814 and is fixed on the upper surface of the first fixed plate 809; in addition, the above-mentioned transmission mechanism can be specifically but not limited to a belt transmission mechanism, and can specifically include a synchronous belt 807, a main synchronous pulley 808 and a slave synchronous pulley 813, the inner hole of the main synchronous pulley 808 is sleeved on the output shaft of the drive motor 802, is circumferentially positioned by a key, and is fixed by a set screw, the inner hole of the slave synchronous pulley 813 is sleeved on the outer cylindrical surface of the nut, is circumferentially positioned by a key, and is fixed by a set screw, the synchronous belt 807 is installed on the synchronous tooth profiles of the main synchronous pulley 808 and the slave synchronous pulley 813, and the installation method of the drive motor 802 and the first fixed plate 809 is designed with a relaxation and tensioning mechanism. The two guide shafts 17 pass through the linear bearings respectively, and their end faces are fixed on the upper surface of the push plate 820 to serve as translation guides. The external thread of the screw rod 818 and the internal thread of the nut 819 form a thread pair, and the lower end face of the screw rod 818 is fixedly connected to the push plate 820. When the driving motor 802 rotates, the momentum is transferred to the synchronous belt 807 through the main synchronous pulley 808, and the synchronous belt 807 further transfers the momentum to the slave synchronous pulley 813. The slave synchronous pulley 813 is fixedly connected to the nut 819, that is, the nut 819 obtains the angular momentum and then rotates. Through the action of the threaded pair composed of the nut 819 and the screw rod 818, the angular momentum is converted into the translational motion of the screw rod 818. The screw rod 818 is fixedly connected to the push plate 820, that is, the force sensor 811 and the top cylinder 812 are connected in sequence below the push plate 820, that is, the push plate 820, the force sensor 811 and the top cylinder 812 are the same rigid body, and the translational motion of the screw rod 818 is the translational motion of the top cylinder 812, and the motion direction is vertically downward.In addition, the support plate 803 is installed on the lower end of the bracket 801, and the mounting seat 805 is installed on the support plate 803. The mounting seat 805 is used to install the injection cylinder 7. The tightening screw 806 is set on the mounting seat 805 and is used to tighten the injection cylinder 7 on the mounting seat 805.

[0139] In some other specific embodiments, referring to Figure 3-Figure 6 Combination Fig.18 and Fig.19 The above-mentioned inflation device and exhaust device can share a ventilation component 11, wherein the inflation device can specifically include an inflation pipeline connected to the ventilation component 11 and a first control valve 1603 (mainly used for inflation, which is connected to the inert gas bottle 22) arranged on the inflation pipeline, and the exhaust device can include an exhaust pipeline and a vacuum pipeline respectively connected to the ventilation component 11, and a second control valve 1604 is arranged on the exhaust pipeline (mainly used to connect to the outside atmosphere to achieve vacuum pipeline pressure relief, for example, the second control valve 1604 is connected to the second one-way valve 23 through a pipeline, and the second one-way valve 23 is connected to the outside atmosphere), and a third control valve 1602 is arranged on the vacuum pipeline (such as a vacuum valve, mainly used for vacuuming, which can be connected to the vacuum pressure tank 21), and the ventilation component 11 is used to be connected and connected with the first process hole 1. Among them, the inflation pipeline, the exhaust pipeline and the vacuum pipeline can be connected to the ventilation component 11 through a multi-way joint and the ventilation pipeline 13. By designing this structure, the control of the gas system is integrated, which makes control and maintenance management more convenient.

[0140] It should be noted that, in addition to the above-mentioned structure, the air circuit system 16 may also include a compressed air valve 1601, a purge pipe control valve 1605, a pressure gauge 1606 and a three-way joint 1607 connected to the ventilation pipeline of the ventilation component 11. The compressed air valve 1601 is connected to the air compressor 20 through a pipeline, and the purge pipe control valve 1605 is mainly used to connect the ventilation pipeline 13 to the purification system 24, and can be connected to the ventilation pipeline 13 through the three-way joint 1607; the pressure gauge 1606 is arranged on the exhaust pipeline where the second control valve 1604 is located, and the pipeline pressure can be detected at any time as needed.

[0141] In a further embodiment, referring to Figure 3-Figure 6 Combination Fig.18 and Fig.19The ventilation component 11 may specifically include a second adjustment mechanism and a ventilation nozzle 1102 arranged on the second adjustment mechanism in a sliding manner along the Z-axis direction, and the ventilation nozzle 1102 is used to adapt to the first process hole 1 for connection and communication; it should be noted that the Z-axis direction is a direction perpendicular to the side of the device box 14 opposite to the placement surface during filling. By designing the ventilation component 11 into the above-mentioned structural form, the driving structure of the ventilation nozzle 1102 can be made simpler and the driving more flexible; by adjusting the Z-axis direction position of the ventilation nozzle 1102 through the second adjustment mechanism, it is more convenient for the ventilation nozzle 1102 to fit and fit with the first process hole 1 on the top surface of the device box 14.

[0142] In a further embodiment, referring to Figure 3-Figure 6 Combination Fig.18 and Fig.19 The second adjustment mechanism may specifically include a second adjustment base 1112, a second slide that slides with the second adjustment base 1112 in the Z-axis direction, and a second adjustment unit for driving the second slide to move, and the vent nozzle 1102 is disposed on the second slide. The second adjustment unit drives the second slide to slide relative to the second adjustment base 1112 in the Z-axis direction, thereby driving the vent nozzle 1102 to move in the Z-axis direction, and finally enables the vent nozzle 1102 to fit the first process hole 1 on the top surface of the device box 14. The structure of this second adjustment mechanism is simpler.

[0143] In some specific embodiments, reference Figure 3-Figure 6 Combination Fig.18 and Fig.19 The vent nozzle 1102 can be mounted on the second slide table through a second elastic buffer mechanism, so that the vent nozzle 1102 can have a second preset elastic buffer stroke relative to the second slide table along the Z-axis direction. By designing the second elastic buffer mechanism, when the vent nozzle 1102 is attached to the top surface of the device box 14, the pressing force is easier to control, which can effectively avoid the upper glass plate 5 of the device box 14 from being broken due to excessive pressure.

[0144] In a further embodiment, referring to Figure 3-Figure 6 Combination Fig.18 and Fig.19The second elastic buffer mechanism may specifically include a second bottom plate 1110 fixedly arranged on the second slide, a second buffer block 1101 arranged above the second bottom plate 1110, and a second elastic member 1105 arranged above the second buffer block 1101, wherein the second buffer block 1101 can move relative to the second bottom plate 1110 along the Z-axis direction, the second elastic member 1105 is used to elastically press the second buffer block 1101 against the second bottom plate 1110, the vent nozzle 1102 is arranged on the second buffer block 1101, and the second bottom plate 1110 forms a avoidance for the vent nozzle 1102. For example, a avoidance opening is provided on the second bottom plate 1110. Specifically, a second connecting channel may be provided in the middle of the second buffer block 1101, the first end of the second connecting channel is connected to the inflation pipeline, the exhaust pipeline and the vacuum pipeline respectively, and the second end of the second connecting channel is connected to the vent nozzle 1102. The structural form of the second elastic buffer mechanism is simpler and easier to process and manufacture.

[0145] It should be noted that the first end of the above-mentioned second connecting channel can be connected to the ventilation pipe 13 specifically by means of threads, or other connection methods commonly used by technical personnel in the field, such as connectors, etc., which are not further limited here; in addition, in order to facilitate the docking of the second buffer block 1101 and the ventilation nozzle 1102, the second end of the above-mentioned second connecting channel can be provided with a second step hole arranged concentrically with the outlet of the second connecting channel, and the ventilation nozzle 1002 is provided with a second positioning boss adapted to the second step hole, and the second positioning boss cooperates with the second step hole, so that the installation and positioning between the two are more convenient.

[0146] In some other specific embodiments, referring to Figure 3-Figure 6 Combination Fig.18 and Fig.19 In order to make the second buffer block 1101 move more stably and reliably along the Z-axis direction relative to the second base plate 1110, a second guide column 1106 arranged along the Z-axis direction may be provided on the second base plate 1110, and a second guide sleeve 1111 slidingly matched with the second guide column 1106 may be provided on the second buffer block 1101. The second guide column 1106 includes a threaded connection portion threadedly connected to the second base plate 1110 and a guide column body slidingly matched with the second guide sleeve 1111, and the second guide sleeve 1111 may be configured as a second guide through hole adapted to the guide column body. Of course, it is understandable that in actual application, other sliding structures may also be designed, for example, a track is provided on the second slide, and a slide groove structural form slidingly connected to the track is provided on the second buffer block 1101, etc., which is not further limited here.

[0147] It should be noted that the second elastic member 1105 can be specifically configured as a second compression spring, one end of which abuts against the head of the second bolt, and the other end of which abuts against the second buffer block 1101. By designing this structural form, the installation of the first elastic member 1005 is simpler and convenient for assembly.

[0148] In some specific embodiments, the number of the second bolts is preferably designed to be at least two, for example, four. By designing this structural form, the second buffer block 1101 can move more stably and reliably along the Z-axis direction. In addition, the top of the second buffer block 1101 can be provided with a second countersunk hole that matches the head of the second bolt. By designing the second countersunk hole, the second elastic member 1105 can be at least partially embedded in the second countersunk hole, which, on the one hand, guides the compression movement of the second compression spring to a certain extent, and on the other hand, protects the second compression spring to a certain extent.

[0149] In some specific embodiments, reference Figure 3-Figure 6 , Fig.15 and Fig.16 , combined with Fig.18 and Fig.19 The above-mentioned vent nozzle 1102 may specifically include a second main body and a second threaded disc 1113 disposed on the second main body, a ventilation center hole is disposed in the middle of the second main body, a second sink groove connected to the ventilation center hole is disposed on the lower end surface of the second main body, the second threaded disc 1113 includes a second chassis and a second threaded column disposed on the second chassis, the second chassis is adapted to the second sink groove and forms a ventilation slit, the second threaded column is threadedly connected to the ventilation center hole, and a ventilation channel connected to the ventilation slit is disposed in the second threaded column. By designing the vent nozzle 1102 into this structural form, the gas flowing through the nozzle 1102 has a certain self-sealing function.

[0150] In addition, refer to Figure 3-Figure 6 , combined with Fig.16 and Fig.17The above-mentioned ventilation component 11 can also include a fourth sealing ring 1103, a fifth sealing ring 1104, a third pipe joint 1107, a second back plate 1108 and a second transition plate 1109, wherein the fourth sealing ring 1103 is used to be embedded in a third groove on the lower end surface of the ventilation nozzle 1102, and the third groove is designed on the lower end surface of the ventilation nozzle 1102 corresponding to the periphery of the ventilation port, and the third groove is preferably designed as a dovetail groove structure. By designing into this structural form, the second sealing ring 1003 is not easy to fall off after being installed in the first groove. The fourth sealing ring 1103 can make the ventilation nozzle 1102 fit with the upper glass plate 5 of the device box 14 to achieve sealing; the fifth sealing ring 1104 is used to be embedded in the fourth groove on the upper end surface of the ventilation nozzle 1102, and the fourth groove is designed at the periphery of the corresponding ventilation port on the upper end surface of the ventilation nozzle 1102, and the ventilation nozzle 1102 and the second buffer block 1101 are sealed by the fifth sealing ring 1104; the third pipe joint 1107 is mainly used to facilitate the docking of the second buffer block 1101 with the ventilation pipeline 13; the second back plate 1108 is mainly fixed on the corresponding translation device to facilitate the installation of the ventilation component 11, for example, on the corresponding sliding pair on the first gantry 903 on the frame 9 described later; the second transition plate 1109 is arranged on both sides of the second buffer block 1101, mainly to achieve limiting and installation of both sides of the second buffer block 1101, and to help increase the structural strength.

[0151] In some more specific embodiments, reference Figure 3-Figure 6 , combined with Fig.16 and Fig.17 The above-mentioned filling device may further include a frame 9, and the frame 9 includes a workbench 15 for placing the device box 14, and the workbench 15 has a horizontal workbench surface that is flat with the placement surface of the device box 14 during filling. By designing the workbench 15, it is more convenient to place the device box 14, and it is only necessary to fit the lower glass plate 6 of the device box 14 with the horizontal workbench surface, which is very convenient to operate.

[0152] In a further embodiment, referring to Figure 3-Figure 6 , combined with Fig.16 and Fig.17 The above-mentioned filling device may further include at least one of a cleaning system and a purification system 24; wherein the cleaning system includes a first cleaning component 18 and a second cleaning component 17 arranged on a horizontal work surface, the first cleaning component 17 is used to perform a cleaning operation on the filling device, and the second cleaning component 18 is used to perform a cleaning operation on the inflation device and the exhaust device; the purification system 24 is connected to the inflation device and the exhaust device through a purification pipe control valve 1605 to perform an exhaust purification operation.

[0153] In some other specific embodiments, referring to Figure 3-Figure 6 , combined with Fig.16 and Fig.17 The frame 9 may specifically include a driving mechanism, which includes a first guide rail 904 arranged on both sides of the workbench, a first gantry 903 and a second gantry 902 that slide with the first guide rail 904 along the X-axis direction, wherein the frame 9 includes a bottom bracket 901, the first guide rail 904 is arranged on the bottom bracket 901, the inflation device and the exhaust device are both installed on the first gantry 903 in a sliding manner along the Y-axis direction, and the filling device is installed on the second gantry 902 in a sliding manner along the Y-axis direction; wherein the X-axis direction and the Y-axis direction are perpendicular to each other and are both parallel to a side of the device box 14 that is opposite to the placement surface during filling. By designing a driving mechanism on the frame 9, the inflation device and the exhaust device can both perform translational movement relative to the upper glass plate 5 of the device box 14 on the workbench 15, thereby making it more convenient to complete the docking and positioning of the inflation device and the exhaust device with the first process hole 1 respectively; similarly, the filling device can also perform translational movement relative to the upper glass plate 5 of the device box 14 on the workbench 15, thereby making it more convenient to complete the docking and positioning of the filling device with the second process hole 3.

[0154] In a further embodiment, referring to Figure 3-Figure 6 , combined with Fig.16 and Fig.17 Specifically, the second gantry 902 may be provided with a second guide rail 907 and a third guide rail 909, wherein the second guide rail 907 is provided on the top surface of the second gantry 902, and the third guide rail 909 is provided on the side of the second gantry 902 opposite to the first gantry 903; wherein the liquid filling actuator of the liquid filling device slides with the second guide rail 907 along the Y-axis direction, and the liquid filling component 10 of the liquid filling device slides with the third guide rail 909 along the Y-axis direction. By designing into such a structural form, the movement of the liquid filling component 10 and the liquid filling actuator in the Y-axis direction is independently driven, making the position adjustment of the liquid filling component 10 more convenient.

[0155] In order for those skilled in the art to better understand the rack structure provided by the present invention, the following is described in conjunction with a more specific implementation:

[0156] Reference Figure 3-Figure 6 , combined with Fig.16 and Fig.17The frame 9 includes a bottom bracket 901, a second gantry 902, a first gantry 903, a first guide rail 904, a first slider 905, a second slider 906, a second guide rail 907, a third slider 908, a third slider 909, a fourth slider 910, a fourth slider 911 and a fifth slider 912. The bottom bracket 901 has two, symmetrically arranged on both sides of the upper surface of the workbench 15, which is the X axis, the first guide rail 904 has two, respectively located on the upper surface of the bottom bracket 901, the first slider 905 has two, symmetrically arranged on one end of the upper surface of the two first guide rails 904, each forming a pair of sliding pairs, the second slider 906 has two, symmetrically arranged on the other end of the upper surface of the two first guide rails 904, each forming a pair of sliding pairs. The second gantry 902 is located on the upper surface of the two first sliders 905 to form a gantry structure. The second gantry 902 is arranged along the Y-axis direction and has the freedom to move forward and backward along the X-axis direction. The first gantry 903 is located on the upper surface of the two second sliders 906 to form a gantry structure. The first gantry 903 is also arranged along the Y-axis direction and has the freedom to move forward and backward along the X-axis. The second guide rail 907 is located on the upper surface of the second gantry 902, the third slider 908 is located on the upper surface of the second guide rail 907 to form a pair of sliding pairs, the third guide rail 909 is located on the inner side of the second gantry 902, the fourth slider 910 is located on the upper surface of the third guide rail 909 to form a pair of sliding pairs, the fourth guide rail 911 is located on the inner side of the first gantry 903, and the fifth slider 912 is located on the upper surface of the fourth guide rail 911 to form a pair of sliding pairs.

[0157] In addition, it should be noted that the liquid filling device provided by the present invention is designed based on the core idea of ​​the following liquid filling method. The liquid filling method provided by the present invention is described in detail below. Fig. 20 As shown, combined Figure 1-Figure 19 The operation steps of the filling method include:

[0158] Placing the device box 14, and placing the device box to be filled with liquid on the work surface, so that the side of the device box having the first process hole 1 and the second process hole 3 faces upward;

[0159] Replace the gas in the device box 14, connect the gas filling device to the first process hole 1 and control the gas filling device to fill the device box 14 with inert gas, until the preset time is reached, connect the liquid filling component to the second process hole 3, close the gas filling device and open the exhaust device;

[0160] Execute liquid filling, control the liquid filling device to fill the electrochromic liquid into the device box 14 with set liquid filling parameters, and control the exhaust device to exhaust the device box 14 and maintain a preset vacuum until the device box is filled with electrochromic liquid, and control the liquid filling device to stop filling and the exhaust device to stop vacuuming; wherein the set liquid filling parameters may specifically be an acceleration of less than 1s, a forward speed of less than 10mm / s, a stroke of about 110mm, and a vacuum degree of less than 50KPa;

[0161] Pressure relief: open the second control valve 1604 on the exhaust device, relieve the pressure in the pipeline, remove the liquid filling component 10 and the ventilation component 11, and relieve the pressure in the inner cavity of the device box 14;

[0162] Sealing: sealing the first process hole 1 and the second process hole 3.

[0163] The above-mentioned method for filling the electrochromic device is as follows: the device box 14 to be filled with liquid is placed on a working surface, with the side of the device box 14 having the first process hole 1 and the second process hole 3 facing upward; then, an inert gas is filled into the device box 14 through the first process hole 1 until a preset time is reached and the filling operation is stopped; thereafter, the electrochromic liquid is filled into the device box 14 through the second process hole 3 with set filling parameters, and at the same time, the device box 14 is vented through the first process hole 1 and a preset vacuum degree is maintained until the device box 14 is filled with the electrochromic liquid and the filling and venting operations are stopped; then, the second control valve 1604 is opened to connect the first process hole 1 and the second process hole 3 with the atmosphere, until the pressures at the first process hole 1 and the second process hole 3 are the same as the external atmospheric pressure; finally, the first process hole 1 and the second process hole 3 are sealed to complete the filling operation of the device box 14. Compared with the traditional vacuum chamber filling method, this filling method can adapt to devices of larger sizes, and there is no need to evacuate the entire device box 14 to a higher vacuum degree, which greatly saves costs. In addition, by setting the filling parameters and coordinating the exhaust and vacuum control to inject the electrochromic liquid into the device box 14, when the electrochromic liquid is about to fill the device box 14, the residual bubbles can be removed in time until the electrochromic liquid is filled. It is difficult for the device box to hide bubbles, which greatly reduces the residual rate of bubbles and improves the yield rate. In addition, the process is simple, which greatly reduces the cost of filling the electrochromic device.

[0164] In some specific embodiments, in order to minimize the contact between the electrochromic liquid and the atmosphere, that is, to reduce the time for the electrochromic liquid to contact water and oxygen, while performing the pressure relief and sealing operations, the following steps are also included:

[0165] During the purging operation, inert gas is purged on the surfaces of the first process hole 1 and the second process hole 3 during the pressure relief process until the sealing operation is completed.

[0166] In a further embodiment, the filling method further comprises, before performing the filling operation:

[0167] The bubbles in the liquid filling device are discharged, and the liquid filling device is controlled to discharge the electrochromic liquid, until the liquid filling device discharges the electrochromic liquid, and the liquid filling device is controlled to stop discharging the liquid.

[0168] It should be noted that, in the liquid filling method, discharging bubbles in the liquid filling device may specifically include:

[0169] Disassemble the first one-way valve 707 connected to the rodless chamber 710 of the filling cylinder 7 of the filling device and the infusion pipeline 12 connected to the filling nozzle 1002 of the filling device;

[0170] A section of auxiliary bubble exhaust pipe is installed on the first one-way valve 707;

[0171] Turn the injection cylinder 7 upside down (refer to Figure 6 The inverted injection cylinder 19 shown in FIG. 1 is used to push the piston rod of the injection cylinder 7 until the electrochromic liquid is discharged from the auxiliary bubble discharge tube;

[0172] Reinstall the injection cylinder 7 to the working position and connect it to the infusion pipeline 12;

[0173] The piston rod of the liquid filling cylinder 7 is pushed until the electrochromic liquid is discharged from the liquid filling nozzle 1002 .

[0174] In some more specific embodiments, the above-mentioned liquid filling method further comprises, after completing the sealing operation:

[0175] A cleaning device, which cleans the filling device through a first cleaning component 18 and cleans the inflation device and the exhaust device through a second cleaning component 17;

[0176] Reset the equipment to reset the inflation device, exhaust device and liquid filling device to their initial state.

[0177] In order for those skilled in the art to better understand the liquid filling method provided by the present invention, the following is an example description in combination with a specific application scenario:

[0178] Preparations that need to be made before filling include: a glass device box of a certain size, for example, the long size is 500*500mm, the gasket height is 0.2mm, and the shape of the gasket can be but is not limited to spherical; a certain amount of EC substance (also known as electrochromic liquid) needs to be prepared according to the size of the device box, and the EC substance is loaded into the filling cylinder, and an appropriate amount of flushing solvent is prepared; check the function of the filling equipment, and check whether the cleaning components and purification system pipelines are connected normally.

[0179] Injection cylinder bubble removal: Invert the injection cylinder 7 filled with EC material into the upper surface of the support plate 803 of the electric propulsion mechanism 8, and refer to the state of the inverted injection cylinder 19. Figure 6 As shown, at this time, a section of hose (that is, the aforementioned auxiliary bubble removal tube) is temporarily connected, one end of which is connected to the first pipe joint 708 of the injection cylinder 7, and the other end is connected to the purification system 24. The control system 25 drives the electric propulsion mechanism 8 to move the push plate 820 downward. The push plate 820 pushes the lower end surface of the cylinder body 702 of the injection cylinder 7 to move upward and downward at this time, so that the piston rod 701 pushes the EC liquid in the rodless chamber 710 to move upward. Because the density of the bubble is smaller than that of the EC liquid, the bubble is at the upper end in the rodless chamber 710, so the bubble is first pushed out of the pipeline by the piston rod 701. Observe the first pipe joint 708. If EC liquid is pushed out, the control system 25 controls the movement to stop. At this time, the discharge of the small amount of bubbles remaining in the rodless chamber 710 is completed. The control system 25 drives the electric propulsion mechanism 8 to move in the reverse direction, so that the push plate 820 returns to the origin, that is, the initial state, removes the temporary hose on the first pipe joint 708, takes out the injection cylinder 7, and places the injection cylinder 7 upright on the support plate 803 of the electric propulsion mechanism 8 and fixes it by tightening the screw 806. The injection cylinder 7 is in the upright state, one end of the infusion pipeline 12 is connected to the first pipe joint 708 of the injection cylinder 7, and the other end is connected to the second pipe joint 1007 of the filling component 10.

[0180] Exhaust of the delivery tube: temporarily place a piece of dust-free paper at the filling nozzle 1002 of the filling component 10, and drive the electric propulsion mechanism 8 through the control system 25 to move the push plate 820 downward. The push plate 820 pushes the outer end top plate 706 of the injection cylinder 7 to move downward. The outer end top plate 706 is fixedly connected with the piston rod 701, so that the piston rod 701 moves downward, pushing the EC liquid in the rodless chamber 710 into the infusion pipeline 12 through the first pipe joint 708. The EC liquid continues to flow from the infusion pipeline 12 into the second pipe joint 1007 of the filling component 10, and then flows from the second pipe joint 1007 into the first buffer block 1001, and then flows from the first buffer block 1001 into the filling nozzle 1002. Observe the bottom of the filling nozzle 1002. If EC liquid is pushed out, stop the movement through the control system 25. At this time, the discharge of a small amount of bubbles remaining in the rodless chamber 710 is completed.

[0181] Gas replacement of device box: place the device box on the upper surface of the workbench 15, and the lower surface of the lower glass 6 of the device box is flush with the upper surface of the workbench 15. The ventilation nozzle 1102 of the ventilation component 11 is aligned with the first process hole 1 of the device box, and the Z-axis stroke of the ventilation nozzle 1102 is adjusted by the second adjustment mechanism, and the ventilation nozzle 1102 moves vertically downward to make the lower end surface of the ventilation nozzle 1102 close to the upper surface of the first process hole 1 of the device box. The stroke is further adjusted, and the fourth sealing ring 1103 presses the upper surface of the upper glass 5. When the second elastic member 1105 is compressed by about 2 to 5 mm, stop adjusting the second adjustment mechanism, open the first control valve 1603 (such as an argon valve), adjust the appropriate opening, observe the pressure gauge 1606, which is within 1000 Pa, and ventilate for 1 to 3 minutes. In the direction of the ventilation component 11 docking the first process hole 1, dock the filling component 10 with the second process hole 3, and close the first control valve 1603.

[0182] Filling: The control system 25 is used to control the start acceleration time, forward speed and forward stroke of the push plate 820. The parameters need to select appropriate values ​​according to the volume and working rhythm of the device box 14. In this example, the acceleration is less than 1s, the forward speed is less than 10mm / s, and the stroke is about 110mm. At the same time, the third control 1602 (i.e., the vacuum valve) is opened, and the pressure gauge is observed. The vacuum degree is within 50KPa. The flow state of EC in the device box is observed. When it is full, the push plate 820 is stopped and the third control 1602 is closed.

[0183] Pressure relief: At this time, the pressure inside the device box 14 may be positive pressure, and pressure relief is required to balance the pressure inside and outside the device box 14. Open the second control 1604 and observe the pressure gauge 1606. When the pressure gauge 1606 shows a pressure value close to zero, the pressure relief is completed.

[0184] Sealing: By adjusting the first adjusting mechanism and the second adjusting mechanism, the filling component 10 and the ventilation component 11 are removed, and the first process hole 1 and the second process hole 3 can be purged with inert gas to reduce the contact time between the electrochromic liquid and the air. Sealing glue is applied to the first process hole 1 and the second process hole 3 respectively, and cured. At this point, the filling of the device box EC is completed.

[0185] Cleaning equipment and resetting: reset the push plate 820 through the control system 25, move it upward to the origin, loosen the tightening screw 806, remove the infusion line 12 from the first pipe joint 708, take out the injection cylinder 7, reset the piston rod 701 to the initial state, unscrew the first one-way valve 707, install the first one-way valve 707 after filling the cleaning solvent, place the injection cylinder 7 upright on the support plate 803 of the electric propulsion mechanism 8, and fix it with the tightening screw 806, and connect the ventilation line 13 with the ventilation component 11. The third pipe joint 1107 is disassembled, and three temporary hoses and a three-way joint are prepared, which are respectively connected to the third pipe joint 1107 of the ventilation component 11, the second pipe joint 1007 of the liquid filling component 11, and the first pipe joint 708 of the liquid injection cylinder 7. The liquid filling nozzle 1002 of the liquid filling component 10 is connected to the first cleaning component 18, and the ventilation nozzle 1102 of the ventilation component 11 is connected to the second cleaning component 17. Through the control system 25, the push plate 820 is pushed to clean the liquid filling component 10 and the ventilation component 11. After completion, the device is reset.

[0186] The above-mentioned filling method uses an inert gas to replace the air in the device cavity to discharge the water and oxygen in the device cavity, which is simpler and more reliable than the evacuation method; EC liquid is injected by appropriately controlling the thrust and vacuum size, and when the EC liquid is about to fill the device cavity, the residual bubbles in the device cavity are evacuated through the vacuum pipeline until the EC liquid is filled. The process is simple, it is difficult for the device cavity to hide bubbles, and the yield is high; the filling pipeline and the ventilation pipeline are controlled separately, and all gas path controls are realized in an overall gas path system pipeline. The filling pipeline has only one way for EC liquid transportation, has no other branches, has the shortest stroke, and has no redundant branch joints, so the possibility of introducing bubbles is minimized, and the reliability is greatly improved.

[0187] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0188] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0189] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0190] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0191] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A method for filling an electrochromic device, characterized in that: The liquid filling method comprises: Placing a device box (14), placing the device box (14) to be filled with liquid on a work surface, with the side of the device box having the first process hole (1) and the second process hole (3) facing upward; replacing the gas in the device box (14), filling the device box (14) with inert gas through the first process hole (1), and stopping the filling operation when a preset time is reached; Filling, filling the device box (14) with electrochromic liquid through the second process hole (3) with set filling parameters, and at the same time exhausting the device box (14) through the first process hole (1) and maintaining a preset vacuum degree until the device box is filled with electrochromic liquid and the filling and exhausting operations are stopped; Relieving pressure, connecting the first process hole (1) and the second process hole (3) to the atmosphere, until the pressures at the first process hole (1) and the second process hole (3) are the same as the external atmospheric pressure; Sealing: sealing the first process hole (1) and the second process hole (3).

2. The method for filling an electrochromic device according to claim 1, characterized in that: While performing the pressure relief and sealing operations, the following steps are also included: A purging operation is performed, during the pressure relief process, on the surfaces of the first process hole (1) and the second process hole (3) by purging with an inert gas until the sealing operation is completed.

3. The method for filling an electrochromic device according to claim 1, characterized in that: The liquid filling operation is implemented by a liquid filling device, and before performing the liquid filling operation, the method further includes: Expel air bubbles from the filling device.

4. The method for filling an electrochromic device according to claim 3, characterized in that: The method for discharging bubbles in the liquid filling device comprises: Disconnecting the first one-way valve (707) connected to the rodless chamber (710) of the liquid filling cylinder (7) of the liquid filling device and the liquid infusion pipeline (12) connected to the liquid filling nozzle (1002) of the liquid filling device; Installing a section of auxiliary bubble exhaust pipe on the first one-way valve (707); Inverting the injection cylinder (7) and pushing the piston rod of the injection cylinder (7) until electrochromic liquid is discharged from the auxiliary bubble discharge tube; Reinstall the injection cylinder (7) to the working position and connect it to the infusion pipeline (12); The piston rod of the liquid injection cylinder (7) is pushed until the electrochromic liquid is discharged from the liquid injection nozzle (1002).

5. The method for filling an electrochromic device according to claim 4, characterized in that: The liquid filling method further comprises, after completing the sealing operation: A cleaning device, which cleans the liquid filling device through a first cleaning component (18) and cleans the gas filling device and the gas exhaust device through a second cleaning component (17); The resetting device resets the inflation device, the exhaust device and the liquid filling device to an initial state.

6. A liquid filling device for an electrochromic device, characterized in that: include: An air filling device, used for filling an inert gas into a device box (14) of an electrochromic device to be manufactured to replace the air in the device box (14); A liquid filling device, used for filling the electrochromic liquid into the device box (14) according to set liquid filling parameters; An exhaust device, used to exhaust the inert gas in the device box (14) and control the vacuum degree in the device box (14) when the electrochromic liquid is poured into the device box (14); A first process hole (1) and a second process hole (3) are provided on a surface of the device box (14) opposite to the surface on which the device box is placed during liquid filling; the inflation device and the exhaust device are connected to the inner cavity of the device box (14) through the first process hole (1); and the liquid filling device is connected to the inner cavity of the device box (14) through the second process hole (3).

7. The liquid filling device of the electrochromic device according to claim 6, characterized in that: The liquid filling device comprises a liquid filling component (10) and a liquid filling actuator, wherein the liquid filling component (10) comprises a first adjustment mechanism and a liquid filling nozzle (1002) arranged on the first adjustment mechanism in a sliding manner along the Z-axis direction, wherein the liquid filling nozzle (1002) is used to be adapted to be connected and communicated with the second process hole (3); the liquid filling actuator is connected to the liquid filling nozzle (1002) and is used to control the liquid filling nozzle (1002) to perform a liquid filling operation; The Z-axis direction is a direction perpendicular to a surface of the device box (14) opposite to the surface on which the device box is placed during liquid filling.

8. The liquid filling device of the electrochromic device according to claim 7, characterized in that: The first adjustment mechanism comprises a first adjustment base (1012), a first slide table slidably matched with the first adjustment base (1012) along the Z-axis direction, and a first adjustment part for driving the first slide table to move, and the liquid filling nozzle (1002) is arranged on the first slide table.

9. The liquid filling device of the electrochromic device according to claim 8, characterized in that: The liquid filling nozzle (1002) is mounted on the first slide table via a first elastic buffer mechanism, so that the liquid filling nozzle (1002) can have a first preset elastic buffer stroke along the Z-axis direction relative to the first slide table.

10. The liquid filling device of the electrochromic device according to claim 9, characterized in that: The first elastic buffer mechanism comprises a first bottom plate (1010) fixedly arranged on the first slide, a first buffer block (1001) arranged above the first bottom plate (1010), and a first elastic member (1005) arranged above the first buffer block (1001), wherein the first buffer block (1001) can move relative to the first bottom plate (1010) along the Z-axis direction, the first elastic member (1005) is used to elastically press the first buffer block (1001) against the first bottom plate (1010), the liquid filling nozzle (1002) is arranged on the first buffer block (1001), and the first bottom plate (1010) forms a avoidance for the liquid filling nozzle (1002).

11. The liquid filling device of the electrochromic device according to claim 10, characterized in that: A first connecting channel is provided in the middle of the first buffer block (1001), a first end of the first connecting channel is connected to the infusion pipeline (12) of the liquid filling actuator, and a second end of the first connecting channel is connected to the liquid filling nozzle (1002).

12. The liquid filling device of the electrochromic device according to claim 11, characterized in that: The first end of the first connecting channel is connected to the infusion pipeline (12) via a thread; And / or, the second end of the first connecting channel is provided with a first stepped hole arranged concentrically with the outlet of the first connecting channel, and the filling nozzle (1002) is provided with a first positioning boss adapted to the first stepped hole.

13. The liquid filling device of the electrochromic device according to claim 10, characterized in that: The first base plate (1010) is provided with a first guide column (1006) arranged along the Z-axis direction, and the first buffer block (1001) is provided with a first guide sleeve (1011) slidably matched with the first guide column (1006).

14. The liquid filling device of the electrochromic device according to claim 13, characterized in that: The first elastic member (1005) is a first compression spring, one end of the first compression spring abuts against the head of the first bolt, and the other end of the first compression spring abuts against the first buffer block (1001).

15. The liquid filling device of the electrochromic device according to claim 14, characterized in that: The number of the first bolts is at least two; and / or the top of the first buffer block (1001) is provided with a first countersunk hole adapted to the head of the first bolt.

16. The liquid filling device of the electrochromic device according to claim 7, characterized in that: The liquid filling nozzle (1002) comprises a first main body and a first threaded disk (1013) arranged on the first main body, a liquid filling center hole is arranged in the middle of the first main body, a first sink connected to the liquid filling center hole is arranged on the lower end surface of the first main body, the first threaded disk (1013) comprises a first base and a first threaded column arranged on the first base, the first base is adapted to the first sink and forms a liquid outlet slit, the first threaded column is threadedly connected to the liquid filling center hole, and a liquid outlet channel for draining the electrochromic liquid in the liquid filling center hole to the liquid outlet slit is arranged in the first threaded column.

17. The liquid filling device of the electrochromic device according to claim 7, characterized in that: The liquid filling actuator comprises a liquid filling cylinder (7) and a liquid filling drive mechanism (8), wherein the liquid filling cylinder (7) is used to inject electrochromic liquid into the liquid filling nozzle (1002), and the liquid filling drive mechanism (8) is used to drive the liquid filling cylinder (7) to perform the liquid filling action.

18. The liquid filling device of the electrochromic device according to claim 17, characterized in that: The injection cylinder (7) comprises a cylinder body (702) and a piston rod (701) slidably matched with the cylinder body (702); a rodless chamber (710) of the cylinder body (702) is provided with a first one-way valve (707); and the injection drive mechanism (8) is used to drive the piston rod (701) to slide so as to transport the electrochromic liquid in the rodless chamber (710) from the first one-way valve (707) to the injection nozzle (1002) through the infusion pipeline (12).

19. The liquid filling device of the electrochromic device according to claim 18, characterized in that: A third guide sleeve (704) is arranged on the outer side of the cylinder body (7), and a third guide column (705) is arranged on the outer end of the piston rod (701). The third guide column (705) is slidably matched with the third guide sleeve (704) to guide the sliding of the piston rod (701).

20. The liquid filling device of the electrochromic device according to claim 18, characterized in that: The liquid injection drive mechanism (8) is configured as an electric propulsion mechanism.

21. The liquid filling device of the electrochromic device according to claim 20, characterized in that: The electric propulsion mechanism comprises a bracket (801) and a driving unit arranged on the bracket (801), the driving unit comprising a driving motor (802), a transmission mechanism and a screw mechanism, the screw mechanism comprising a screw (818) and a nut (819) threadedly matched with the screw (818), the nut (819) being rotatably arranged on the bracket (801), the driving motor (802) being used to drive the nut (819) to rotate through the transmission mechanism to drive the screw (818) to move linearly, the cylinder body (702) of the injection cylinder (7) being fixedly arranged on the bracket (801), and the piston rod (701) being coaxially arranged with the screw (818) so that the screw (818) drives the piston rod (701) to slide relative to the cylinder body (702).

22. The liquid filling device of the electrochromic device according to claim 6, characterized in that: The inflation device and the exhaust device share a ventilation component (11), the inflation device comprises an inflation pipeline connected to the ventilation component (11) and a first control valve (1603) arranged on the inflation pipeline, the exhaust device comprises an exhaust pipeline and a vacuum pipeline respectively connected to the ventilation component (11), the exhaust pipeline is provided with a second control valve (1604), and the vacuum pipeline is provided with a third control valve (1602), and the ventilation component (11) is used to be adapted to be connected and coupled with the first process hole (1).

23. The liquid filling device of the electrochromic device according to claim 22, characterized in that: The ventilation component (11) comprises a second adjustment mechanism and a ventilation nozzle (1102) arranged on the second adjustment mechanism in a sliding manner along the Z-axis direction, and the ventilation nozzle (1102) is used to adaptably connect and communicate with the first process hole (1); The Z-axis direction is a direction perpendicular to a surface of the device box (14) opposite to the surface on which the device box is placed during liquid filling.

24. The liquid filling device of the electrochromic device according to claim 23, characterized in that: The second adjustment mechanism includes a second adjustment base (1112), a second slide table that slides with the second adjustment base (1112) along the Z-axis direction, and a second adjustment part for driving the second slide table to move, and the ventilation nozzle (1102) is arranged on the second slide table.

25. The liquid filling device of the electrochromic device according to claim 24, characterized in that: The ventilation nozzle (1102) is installed on the second slide via a second elastic buffer mechanism, so that the ventilation nozzle (1102) can have a second preset elastic buffer stroke along the Z-axis direction relative to the second slide.

26. The liquid filling device of the electrochromic device according to claim 25, characterized in that: The second elastic buffer mechanism includes a second base plate (1110) fixedly arranged on the second slide, a second buffer block (1101) arranged above the second base plate (1110), and a second elastic member (1105) arranged above the second buffer block (1101), wherein the second buffer block (1101) can move along the Z-axis direction relative to the second base plate (1110), and the second elastic member (1105) is used to elastically press the second buffer block (1101) against the second base plate (1110), and the ventilation nozzle (1102) is arranged on the second buffer block (1101), and the second base plate (1110) forms a avoidance for the ventilation nozzle (1102).

27. The liquid filling device of the electrochromic device according to claim 26, characterized in that: A second connecting channel is provided in the middle of the second buffer block (1101), and a first end of the second connecting channel is connected to the inflation pipeline, the exhaust pipeline and the vacuum pipeline respectively, and a second end of the second connecting channel is connected to the ventilation nozzle (1102).

28. The liquid filling device of the electrochromic device according to claim 27, characterized in that: The second end of the second connecting channel is provided with a second step hole arranged concentrically with the vent of the second connecting channel, and the vent nozzle (1102) is provided with a second positioning boss adapted to the second step hole.

29. The liquid filling device of the electrochromic device according to claim 26, characterized in that: The second base plate (1110) is provided with a second guide column (1106) arranged along the Z-axis direction, and the second buffer block (1101) is provided with a second guide sleeve (1111) slidably matched with the second guide column (1106).

30. The liquid filling device of the electrochromic device according to claim 29, characterized in that: The second elastic member (1105) is a second compression spring, one end of the second compression spring abuts against the head of the second bolt, and the other end of the second compression spring abuts against the second buffer block (1101).

31. The liquid filling device of the electrochromic device according to claim 30, characterized in that: The number of the second bolts is at least two; and / or the top of the second buffer block (1101) is provided with a second countersunk hole adapted to the head of the second bolt.

32. The liquid filling device of the electrochromic device according to claim 22, characterized in that: The vent nozzle (1102) includes a second main body and a second threaded disk (1113) arranged on the second main body, a vent center hole is arranged in the middle of the second main body, a second recessed groove connected to the vent center hole is arranged on the lower end surface of the second main body, the second threaded disk (1113) includes a second chassis and a second threaded column arranged on the second chassis, the second chassis is adapted to the second recessed groove and forms a vent slit, the second threaded column is threadedly connected to the vent center hole, and a vent channel connected to the vent slit is arranged in the second threaded column.

33. The liquid filling device of any one of claims 6 to 32, characterized in that: It also comprises a frame (9), the frame (9) comprising a workbench (15) for placing the device box (14), the workbench (15) having a horizontal workbench surface that is flush with the placement surface of the device box (14) when filling liquid.

34. The liquid filling device of the electrochromic device according to claim 33, characterized in that: Also includes a cleaning system and / or a purification system (24); The cleaning system comprises a first cleaning component (18) and a second cleaning component (17) arranged on the horizontal work surface, the first cleaning component (18) being used to perform a cleaning operation on the liquid filling device, and the second cleaning component (17) being used to perform a cleaning operation on the inflation device and the exhaust device; The purification system (24) is connected to the inflation device and the exhaust device through the purification pipe control valve (1605) to perform exhaust purification operations.

35. The liquid filling device of the electrochromic device according to any one of claims 6 to 32 and 34, characterized in that: The frame (9) comprises a driving mechanism, the driving mechanism comprising a first guide rail (904) arranged near two sides of the workbench, a first gantry (903) and a second gantry (902) slidingly matched with the first guide rail (904) along the X-axis direction, the inflation device and the exhaust device are both mounted on the first gantry (903) in a slidingly matched manner along the Y-axis direction, and the liquid filling device is mounted on the second gantry (902) in a slidingly matched manner along the Y-axis direction; The X-axis direction and the Y-axis direction are perpendicular to each other and are parallel to a surface of the device box (14) opposite to the surface on which the device box is placed during liquid filling.

36. The liquid filling device of the electrochromic device according to claim 35, characterized in that: The second gantry (902) is provided with a second guide rail (907) and a third guide rail (909), wherein the second guide rail (907) is provided on the top surface of the second gantry (902), and the third guide rail (909) is provided on a side of the second gantry (902) opposite to the first gantry (903); The liquid filling actuator of the liquid filling device is slidably matched with the second guide rail (907) along the Y-axis direction, and the liquid filling component (10) of the liquid filling device is slidably matched with the third guide rail (909) along the Y-axis direction.