Thermoforming die for electrochromic device

Abstract

The utility model relates to the technical field of electrochromic device manufacturing, in particular to an electrochromic device thermal forming die which comprises a first adjusting assembly arranged on the side, away from a first curved surface, of an upper pressing plate, a second adjusting assembly arranged on the side, away from a second curved surface, of a lower pressing plate and an adjusting column detachably fixed to the pressing plates. The supporting cross rod is arranged on the adjusting column in a sliding and sleeving mode, the first vertical rod and the second vertical rod are perpendicularly connected to the two ends of the supporting cross rod respectively, and the first adjusting piece and the second adjusting piece are connected to the adjusting column in a threaded mode and located above and below the supporting cross rod respectively. Through collaborative design of the upper pressing plate, the lower pressing plate and the curvature adjusting device, dynamic and accurate regulation and control of the curvature of the curved surface are achieved; through the arrangement of the adjusting column, the supporting cross rod, the vertical rod and the threaded adjusting piece, mechanical transmission is used for applying acting force to the pressing plate, so that the pressing plate is locally deformed, the curved surface curvature of the pressing plate is adjusted, the operation is rapid and convenient, and the production efficiency of the multi-specification curved surface electrochromic device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrochromic device manufacturing technical field, especially in kind of electrochromic device hot forming mould. BACKGROUND

[0002] Traditional electrochromic device hot forming mould usually adopts fixed curvature pressure plate, resulting in that different curvature requirement devices need to customize multiple sets of mould, which is high in cost and low in production efficiency. Although there is adjustable curvature mould design in the prior art, the following problems exist generally: low adjustment precision: relying on manual experience adjustment, which is difficult to meet the high requirements of optical devices on surface uniformity; low adjustment efficiency, which cannot meet the efficient production requirements of multi-specification curved surface electrochromic devices. SUMMARY

[0003] The utility model discloses a kind of electrochromic device hot forming mould, the precise, dynamic regulation and control of pressure plate curvature is realized by mechanical curvature adjustment device, and the production efficiency of multi-specification curved surface electrochromic devices is improved.

[0004] To solve the above technical problems, an embodiment of the utility model provides a technical scheme as follows:

[0005] A kind of electrochromic device hot forming mould, comprising: upper pressure plate and lower pressure plate, which are oppositely arranged and can be opened and closed, the surface of the upper pressure plate towards the lower pressure plate is provided with first curved surface, and the surface of the lower pressure plate towards the upper pressure plate is provided with second curved surface matched with the first curved surface;

[0006] Curvature adjustment device, comprising: first adjustment component, which is arranged on the side of the upper pressure plate away from the first curved surface;Second adjustment component, which is arranged on the side of the lower pressure plate away from the second curved surface;

[0007] Each adjustment component includes: adjustment column, which is fixed with the pressure plate by detachable connecting piece;

[0008] Supporting cross bar, slidingly sleeved on the adjustment column, the supporting cross bar is provided with long-circular adjusting hole along its axial direction, and the adjustment column passes through the adjusting hole and is in sliding fit with the supporting cross bar;

[0009] First vertical rod and second vertical rod are respectively connected to the two ends of the supporting cross bar perpendicularly, and the end portions of the first vertical rod and the second vertical rod are connected with the pressure plate by fixed nuts;

[0010] First adjustment part and second adjustment part are threadedly connected to the adjustment column and are respectively located above and below the supporting cross bar;

[0011] By rotating the first adjustment part or the second adjustment part, the adjustment column is driven to ascend or descend relative to the supporting cross bar, and then the pressure plate is locally deformed to adjust the curvature of the first curved surface and / or the second curved surface.

[0012] Further, a connecting head is arranged between the adjusting column and the pressing plate, and the connecting head is detachably connected with the pressing plate by one of the following manners:

[0013] Vacuum adsorption: the surface of the connecting head is provided with a micro-pore array, and a vacuum pump is connected to form negative pressure adsorption;

[0014] Magnetic attraction: a permanent magnet is embedded in the connecting head, and a magnetic guide sheet is embedded in the corresponding position of the pressing plate.

[0015] Further, a limiting hole is axially arranged at each end of the supporting horizontal rod along the adjusting hole, the first vertical rod and the second vertical rod pass through the corresponding limiting holes and are in sliding fit with the supporting horizontal rod, and the first vertical rod is provided with a first limiting nut which abuts against the supporting horizontal rod when being screwed to realize axial locking, and the second vertical rod is provided with a second limiting nut which abuts against the supporting horizontal rod when being screwed to realize axial locking.

[0016] Further, the outer surface of the pressing plate is provided with a plurality of fixing nuts, and the end portions of the first vertical rod and the second vertical rod are provided with external threads, and the fixing nuts are screwed with the pressing plate to be fixed.

[0017] Further, the adjusting column is provided with a scale bar in the axial direction.

[0018] Further, the lifting stroke H of the adjusting column and the target curvature radius R of the pressing plate satisfy the following relationship:

[0019] H = K * (1 / R1-1 / R2),

[0020] wherein K is a coefficient related to the elastic modulus of the material of the pressing plate, R1 is the initial curvature radius, and R2 is the target curvature radius.

[0021] Compared with the prior art, the electrochromic device hot forming die provided by the utility model realizes dynamic and accurate regulation and control of the curvature of the curved surface through the cooperative design of the upper and lower pressing plates and the curvature adjusting device; through the arrangement of the adjusting column, the supporting horizontal rod, the vertical rod and the threaded adjusting piece, the pressing plate is subjected to the action force by mechanical transmission, the local deformation of the pressing plate is promoted, the curvature of the curved surface of the pressing plate is adjusted, and the production efficiency of the multi-specification curved surface electrochromic device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and the exemplarily illustrations do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute proportional limitation.

[0023] Figure 1 is the overall structure schematic view of the electrochromic device hot forming die in the utility model embodiment.

[0024] Figure 2 is the structural schematic diagram of the curvature adjusting device in the embodiment of the utility model;

[0025] Figure 3 is the structural schematic diagram of the support cross bar in the embodiment of the utility model;

[0026] Figure 4 is the relative position schematic diagram of the upper and lower pressing plate, the upper diaphragm, the electrochromic layer and the lower diaphragm in the embodiment of the utility model.

[0027] Mark explanation: 10, upper pressing plate;11, fixed nut;101, first curved surface;20, lower pressing plate;201, second curved surface;30, upper diaphragm;40, electrochromic layer;50, lower diaphragm;60, curvature adjusting device;601, first adjusting assembly;602, second adjusting assembly;61, adjusting column;611, scale bar;62, support cross bar;621, adjusting hole;622, limiting hole;63, first vertical rod;631, first limiting nut;64, second vertical rod;641, second limiting nut;65, connecting head;66, first adjusting piece;67, second adjusting piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clear, the various embodiments of the utility model will be described in detail below with the drawings. However, the ordinary skilled in the art can understand that in the various embodiments of the utility model, many technical details are proposed in order to make the reader better understand the present application. However, even without these technical details and based on the various changes and modifications of the following embodiments, the technical scheme claimed in each claim of the present application can be realized.

[0029] As Figures 1-4As shown, one embodiment of the utility model relates to a kind of electrochromic device hot forming mould, for curved surface electrochromic device hot press forming, comprising: upper pressing plate 10 and lower pressing plate 20, both oppositely arranged and can open and close, the surface of the upper pressing plate 10 towards the lower pressing plate 20 is equipped with first curved surface 101, the surface of the lower pressing plate 20 towards the upper pressing plate 10 is equipped with second curved surface 201 matched with the first curved surface 101;Curvature adjusting device 60, comprising: first adjusting assembly 601, is arranged on the side of upper pressing plate 10 away from first curved surface 101;Second adjusting assembly 602, is arranged on the side of lower pressing plate 20 away from second curved surface 201;Each adjusting assembly includes: adjusting column 61, with pressing plate by detachable connecting piece fixed;Supporting cross bar 62, slidingly set on adjusting column 61, the supporting cross bar 62 is opened with long circular adjusting hole 621 along its axial direction, the adjusting column 61 passes through the adjusting hole 621 and is slidably connected with supporting cross bar 62;First vertical rod 63 and second vertical rod 64 are respectively vertically connected to the two ends of supporting cross bar 62, and the end of first vertical rod 63 and second vertical rod 64 is connected with pressing plate by fixed nut 11;First adjusting part 66 and second adjusting part 67 are respectively located above and below supporting cross bar 62 by being screwed on adjusting column 61;By rotating first adjusting part 66 or second adjusting part 67, adjusting column 61 is driven to lift relative to supporting cross bar 62, in turn drive pressing plate partial deformation to adjust the curvature of first curved surface 101 and / or second curved surface 201.By the synergic design of upper pressing plate 10, lower pressing plate 20 and curvature adjusting device 60, the dynamic accurate control of curved surface curvature is realized;By the setting of adjusting column 61, supporting cross bar 62, vertical rod and threaded adjusting part, mechanical transmission is used to exert force on pressing plate, to promote the partial deformation of pressing plate, adjust the curvature of pressing plate, fast and convenient, improve the production efficiency of multi-specification curved surface electrochromic device. Preferably, connecting head 65 is equipped between the adjusting column 61 and pressing plate, and the pressing plate is detachably connected by one of the following ways: vacuum adsorption: connecting head 65 surface is equipped with micropore array, and negative pressure adsorption is formed by connecting vacuum pump;Magnetic attraction: permanent magnet is embedded in connecting head 65, and magnetic sheet is embedded in corresponding position of pressing plate.

[0030] In one embodiment, the electrochromic device hot forming mold, two ends of the support cross rod 62 are provided with limiting holes 622 along the adjusting hole 621 in the axial direction, the first vertical rod 63 and the second vertical rod 64 pass through the corresponding limiting holes 622 and are in sliding fit with the support cross rod 62, and: the first vertical rod 63 is provided with a first limiting nut 631, which abuts against the support cross rod 62 when tightened to realize axial locking; the second vertical rod 64 is provided with a second limiting nut 641, which abuts against the support cross rod 62 when tightened to realize axial locking. By limiting and locking the vertical rod through the limiting nut, the vertical rod plays a role in stable support when the adjusting column 61 is adjusted in the lifting direction. Preferably, in order to further increase the stability of the vertical rod support, the outer side surface of the pressing plate is provided with a plurality of fixing nuts 11, and the end portions of the first vertical rod 63 and the second vertical rod 64 are provided with external threads, which are fixed by screwing with the pressing plate through the fixing nuts 11.

[0031] In one embodiment, the electrochromic device hot forming mold, the adjusting column 61 is provided with a scale bar 611 in the axial direction, and the precise adjusting column 61 lifting adjustment can be realized through the change of the first adjusting member 66 or the second adjusting member 67 at the corresponding position of the scale bar 611. Through the precise control of the adjusting column 61 lifting adjustment distance, the dynamic and precise control of the curvature of the curved surface is realized. In one example, the lifting stroke H of the adjusting column 61 and the target curvature radius R of the pressing plate satisfy the relationship: H=K·(1 / R1-1 / R2), wherein K is a coefficient related to the elastic modulus of the pressing plate material, R1 is the initial curvature radius, and R2 is the target curvature radius.

[0032] In use, the upper film sheet 30, the electrochromic layer 40 and the lower film sheet 50 are placed between the first curved surface 101 and the second curved surface 201, the upper pressing plate 10 and the lower pressing plate 20 are heated and pressed, so that the electrochromic device composed of the upper film sheet 30, the electrochromic layer 40 and the lower film sheet 50 has the same shape as the first curved surface 101 and the second curved surface 201, and the electrochromic device with a stable curved surface is formed. When electrochromic devices with different curvatures are needed, the curvature of the pressing plate can be adjusted according to the curvature requirement of the surface of the electrochromic device. Taking the curvature adjustment of the upper pressing plate 10 as an example, when the curvature of the first curved surface 101 needs to be increased, the first vertical rod 63 and the second vertical rod 64 are fixed at appropriate positions of the upper pressing plate 10, the position of the adjusting column 61 is moved within the stroke range of the long circular adjusting hole 621, the connecting head 65 of the adjusting column 61 is fixed and connected to the upper pressing plate 10 corresponding to the adjusting position of the upper pressing plate 10, the second adjusting piece 67 is rotated clockwise away from the supporting horizontal rod 62, the first adjusting piece 66 is rotated clockwise to abut against the supporting horizontal rod 62, the first adjusting piece 66 is continuously rotated clockwise and is axially blocked by the supporting horizontal rod 62, under the driving of the threaded rotation, the adjusting column 61 is lifted relative to the supporting horizontal rod 62, and the upper pressing plate 10 is locally deformed, so that the curvature of the first curved surface 101 can be increased; when the curvature of the first curved surface 101 needs to be reduced, the first adjusting piece 66 is rotated counterclockwise away from the supporting horizontal rod 62, the second adjusting piece 67 is rotated counterclockwise to abut against the supporting horizontal rod 62, the second adjusting piece 67 is continuously rotated counterclockwise and is axially blocked by the supporting horizontal rod 62, under the driving of the threaded rotation, the adjusting column 61 is lowered relative to the supporting horizontal rod 62, and the upper pressing plate 10 is locally deformed, so that the curvature of the first curved surface 101 can be reduced.

[0033] The electrochromic device hot forming die provided by the utility model has the advantages that, compared with the prior art, through the cooperative design of the upper and lower pressing plates and the curvature adjusting device, dynamic and accurate regulation and control of the curved surface curvature are realized, through the setting of the adjusting column, the supporting horizontal rod, the vertical rod and the threaded adjusting piece, mechanical transmission is utilized to exert force on the pressing plate, the local deformation of the pressing plate is promoted, the curved surface curvature of the pressing plate is adjusted, and the production efficiency of the multi-specification curved surface electrochromic device is improved.

[0034] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the utility model, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the utility model.

Claims

1. A thermoforming mold for an electrochromic device, characterized in that, include: An upper pressure plate (10) and a lower pressure plate (20) are arranged opposite to each other and can be opened and closed. The surface of the upper pressure plate (10) facing the lower pressure plate (20) is provided with a first curved surface (101), and the surface of the lower pressure plate (20) facing the upper pressure plate (10) is provided with a second curved surface (201) that matches the first curved surface (101). The curvature adjustment device (60) includes: a first adjustment component (601) disposed on the side of the upper pressure plate (10) away from the first curved surface (101); The second adjustment component (602) is disposed on the side of the lower pressure plate (20) opposite to the second curved surface (201); Each set of adjustment components includes: an adjustment column (61), which is fixed to the pressure plate by a detachable connector; A support crossbar (62) is slidably sleeved on an adjusting column (61). The support crossbar (62) has an elongated adjusting hole (621) along its axial direction. The adjusting column (61) passes through the adjusting hole (621) and slides in cooperation with the support crossbar (62). The first vertical rod (63) and the second vertical rod (64) are respectively vertically connected to the two ends of the supporting horizontal rod (62), and the ends of the first vertical rod (63) and the second vertical rod (64) are connected to the pressure plate by fixing nuts (11); The first adjusting member (66) and the second adjusting member (67) are threadedly connected to the adjusting column (61) and are located above and below the supporting crossbar (62) respectively; By rotating the first adjusting member (66) or the second adjusting member (67), the adjusting column (61) is driven to rise and fall relative to the supporting crossbar (62), thereby causing the pressure plate to undergo local deformation to adjust the curvature of the first curved surface (101) and / or the second curved surface (201).

2. The thermoforming mold for the electrochromic device according to claim 1, characterized in that, A connector (65) is provided between the adjusting column (61) and the pressure plate, and the connector (65) is detachably connected to the pressure plate in one of the following ways: Vacuum adsorption: The surface of the connector (65) is provided with a micropore array, which is connected to a vacuum pump to form negative pressure adsorption; Magnetic attraction: The connector (65) has a permanent magnet embedded in it, and the pressure plate has a magnetic strip embedded in the corresponding position.

3. The thermoforming mold for the electrochromic device according to claim 1, characterized in that, The two ends of the support crossbar (62) are provided with limiting holes (622) along the axial direction of the adjustment hole (621). The first vertical rod (63) and the second vertical rod (64) pass through the corresponding limiting holes (622) and slide with the support crossbar (62). The first vertical rod (63) is provided with a first limiting nut (631), which abuts against the support crossbar (62) when tightened to achieve axial locking. The second vertical rod (64) is provided with a second limiting nut (641), which abuts against the support crossbar (62) when tightened to achieve axial locking.

4. The thermoforming mold for the electrochromic device according to claim 1, characterized in that, The outer surface of the pressure plate is provided with a plurality of fixing nuts (11), and the ends of the first vertical rod (63) and the second vertical rod (64) are provided with external threads, which are screwed to the pressure plate by the fixing nuts (11).

5. The thermoforming mold for the electrochromic device according to claim 1, characterized in that, The adjusting column (61) is provided with a scale bar (611) along the axial direction.

6. The thermoforming mold for the electrochromic device according to any one of claims 1-5, characterized in that, The lifting stroke H of the adjusting column (61) and the target radius of curvature R of the pressure plate satisfy the following relationship: H = K·(1 / R1 - 1 / R2), Where K is a coefficient related to the elastic modulus of the pressure plate material, R1 is the initial radius of curvature, and R2 is the target radius of curvature.

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