Laminating jig

Abstract

The utility model discloses an attaching jig which is used for attaching a flexible screen and a curved surface cover plate and comprises a first supporting area and a second supporting area distributed around the first supporting area. The attaching jig comprises a bearing film and a supporting piece. The bearing film comprises a first bearing part located in the first supporting area and a second bearing part located in the second supporting area, and the second bearing part comprises two first sub-bearing parts oppositely arranged in the first direction and two second sub-bearing parts oppositely arranged in the second direction. A first abdicating notch is formed between the adjacent first sub-bearing part and second sub-bearing part, and a third sub-bearing part is arranged in at least one first abdicating notch. The supporting piece comprises a first supporting part located in the first supporting area and a second supporting part located in the second supporting area. The gap between the screen body and the curved surface cover plate during fitting is reduced through the third sub-bearing part, the problem that bubbles are generated between the screen body and the curved surface cover plate is solved, and the fitting effect is improved.

Description

Technical Field

[0001] This application relates to the field of flexible screen bonding equipment technology, and in particular to a bonding fixture. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are self-emissive display devices. Compared to traditional liquid crystal displays (LCDs), OLED technology does not require a backlight and is self-emissive. OLEDs use a thin layer of organic material and a glass substrate; when current flows through, the organic material emits light. Therefore, OLED display panels can significantly save energy, be made lighter and thinner, withstand a wider range of temperature variations than LCD panels, and have a wider viewing angle. OLED display panels are expected to become the next-generation flat panel display technology after LCDs and are currently one of the most watched technologies in the flat panel display field.

[0003] With the advent of the ubiquitous screen era, people's demand for curved display panels is becoming increasingly strong. To improve the screen-to-body ratio, dual-curved bonding technology and quad-curved bonding technology have emerged. Utility Model Content

[0004] This application provides a fitting fixture to improve the fitting effect of the fitting fixture.

[0005] An embodiment of the first aspect of this application provides a bonding fixture for bonding a flexible screen and a curved cover plate, and includes a first support area and a second support area distributed around the first support area. The bonding fixture includes: a carrier film, including a first carrier portion located in the first support area and a second carrier portion located in the second support area, the second carrier portion including two first sub-carrier portions disposed opposite to each other along a first direction and two second sub-carrier portions disposed opposite to each other along a second direction, a first clearance notch being formed between adjacent first sub-carrier portions and second sub-carrier portions, and a third sub-carrier portion being disposed within at least one first clearance notch, the first direction intersecting the second direction; and a support member, including a first support portion located in the first support area and a second support portion located in the second support area, the first support portion supporting the first carrier portion and the second support portion supporting the second carrier portion.

[0006] According to any of the foregoing embodiments of the first aspect of this application, the side of the third sub-bearing portion facing away from the first bearing portion overlaps with the virtual arc edge formed between the first sub-bearing portion and the second sub-bearing portion.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the minimum distance between the first sub-support portion and / or the second sub-support portion and the third sub-support portion is ≥2mm.

[0008] According to any of the foregoing embodiments of the first aspect of this application, in some optional embodiments, the projection of the side of the third sub-bearing portion away from the first bearing portion along the third direction is an arc-shaped edge, and the third direction is perpendicular to the plane containing the first direction and the second direction.

[0009] According to any of the foregoing embodiments of the first aspect of this application, a through groove is provided on the third sub-support portion, and the through groove extends from the connection position between the third sub-support portion and the first support portion in a direction away from the first support portion.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the extension direction of the through groove is perpendicular to the tangent of the arc-shaped edge.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the width of the through groove is perpendicular to the extension direction of the through groove, and the width of the through groove gradually increases along the extension direction of the through groove toward the side away from the first bearing portion.

[0012] According to any of the foregoing embodiments of the first aspect of this application, there are multiple through slots, which are spaced apart, and the minimum distance between two adjacent through slots is 1.5mm-2.5mm. According to any of the foregoing embodiments of the first aspect of this application, the length of the through slot is 1.25mm-1.75mm, and / or the width of the through slot is 1.5mm-2.5mm.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the fitting fixture further includes a clamping device, which includes two first clamping portions disposed opposite to each other along a first direction and two second clamping portions disposed opposite to each other along a second direction. A second clearance notch is formed between adjacent first clamping portions and second clamping portions, and a third clamping portion is disposed in each of the second clearance notches.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the projection of the side of the third clamping part away from the first clamping part along the third direction is arc-shaped, and the third direction is perpendicular to the plane containing the first direction and the second direction.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the minimum distance between the first clamping portion and / or the second clamping portion and the third clamping portion is ≥3mm. According to any of the foregoing embodiments of the first aspect of this application, the widths of the first clamping portion, the second clamping portion, and the third clamping portion are the same.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the width of the first clamping portion along the first direction is 2.5mm-3.5mm, and / or the width of the second clamping portion along the second direction is 2.5mm-3.5mm, and / or the width of the third clamping portion is 2.5mm-3.5mm.

[0017] In the bonding fixture provided in this application embodiment, the bonding fixture is used to bond a flexible screen and a curved cover plate, and includes a first support area and a second support area distributed around the first support area. The bonding fixture includes a carrier film and a support member. The carrier film is used to carry the flexible screen to the bonding fixture, and the support member is used to bond the flexible screen and the curved cover plate together. The carrier film includes a first carrier portion located in the first support area and a second carrier portion located in the second support area. The second carrier portion includes two first sub-carrier portions disposed opposite each other along a first direction and two second sub-carrier portions disposed opposite each other along a second direction. The carrier film supports and protects the flexible screen through the first carrier portion and the second carrier portion. A first clearance notch is formed between adjacent first sub-carrier portions and second sub-carrier portions. A third sub-carrier portion is disposed within at least one first clearance notch. The third sub-carrier portion supports the flexible screen in the second support area. The first direction intersects the second direction. The support component includes a first support portion located in a first support area and a second support portion located in a second support area. The first support portion supports the first bearing portion in contact with the curved cover plate, and the second support portion supports the second bearing portion in contact with the curved cover plate. In this embodiment, the flexible screen is supported by a third sub-bearing portion, which reduces the gap between the screen and the cover plate during bonding, improves the problem of air bubbles between the flexible screen and the curved cover plate corresponding to the third sub-bearing portion, and enhances the bonding effect. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0019] Figure 1 This is a structural schematic diagram of a support member provided according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of a carrier membrane according to an embodiment of this application;

[0021] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 4 This is one of the structural schematic diagrams of a fitting fixture provided according to an embodiment of this application;

[0023] Figure 5 This is a second schematic diagram of a fitting fixture provided according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a clamping device provided according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Fitting fixture; 10A. First support area; 10B. Second support area; 11. Curved cover plate; 12. Flexible screen;

[0027] 100, Support membrane; 110, First support portion; 120, Second support portion; 121, First sub-support portion; 122, Second sub-support portion; 123, Third sub-support portion; 123a, Arc-shaped edge; 123b, Through groove; 130, First clearance notch;

[0028] 200. Support component; 210. First support part; 220. Second support part;

[0029] 300. Clamping device; 310. First clamping part; 320. Second clamping part; 330. Third clamping part; 340. Second clearance notch;

[0030] 20. Pressing component; 21. Receiving groove;

[0031] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0032] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0034] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0035] Current technologies primarily utilize the flexibility of flexible screens to fabricate curved display panels. The main bonding method for flexible screens currently involves using silicone pads to press the flexible screen onto the inside of a curved cover plate. During the bonding process, pressure is applied to the bonding fixture, causing the silicone pads to deform and thus bonding the flexible screen and the curved cover plate together. Insufficient deformation of the silicone pads can lead to air bubbles between the flexible screen and the curved cover plate, severely impacting the yield rate of the curved display panel.

[0036] To address the aforementioned technical problems, a fitting fixture as described in the embodiments of this application is proposed. For a better understanding of this application, the following is combined with… Figures 1 to 6 A fitting fixture according to an embodiment of this application will be described in detail.

[0037] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of a carrier membrane structure provided according to an embodiment of this application. Figure 2 This is one of the structural schematic diagrams of a support member provided according to an embodiment of this application. Figure 3 This is one of the structural schematic diagrams of a fitting fixture provided according to an embodiment of this application. Figure 4 This is a second schematic diagram of a fitting fixture provided according to an embodiment of this application.

[0038] like Figures 1 to 4As shown, an embodiment of the first aspect of this application provides a bonding fixture 10 for bonding a flexible screen 12 and a curved cover plate 11, and includes a first support region 10A and a second support region 10B distributed around the first support region 10A. The bonding fixture 10 includes a carrier film 100 and a support member 200. The carrier film 100 includes a first carrier portion 110 located in the first support region 10A and a second carrier portion 120 located in the second support region 10B. The second carrier portion 120 includes two first sub-carrier portions 121 arranged opposite to each other along a first direction X and two second sub-carrier portions 122 arranged opposite to each other along a second direction Y. A first clearance notch 130 is formed between adjacent first sub-carrier portions 121 and second sub-carrier portions 122. A third sub-carrier portion 123 is provided in at least one first clearance notch 130. The first direction X intersects the second direction Y. The support member 200 includes a first support portion 210 located in a first support region 10A and a second support portion 220 located in a second support region 10B. The first support portion 210 is used to support the first bearing portion 110, and the second support portion 220 is used to support the second bearing portion 120.

[0039] In the bonding fixture 10 provided in this application embodiment, the bonding fixture 10 is used to bond a flexible screen 12 and a curved cover plate 11 and includes a first support area 10A and a second support area 10B distributed around the first support area 10A. The bonding fixture 10 includes a carrier film 100 and a support member 200. The carrier film 100 is used to carry the flexible screen 12 to move onto the bonding fixture 10, and the support member 200 is used to bond the flexible screen 12 and the curved cover plate 11 together. The carrier film 100 includes a first carrier portion 110 located in the first support area 10A and a second carrier portion 120 located in the second support area 10B. The second carrier portion 120 includes two first sub-carrier portions 121 arranged opposite each other along a first direction X and two second sub-carrier portions 122 arranged opposite each other along a second direction Y. The first carrier portion 110 and the second carrier portion 120 support and protect the flexible screen 12. A first clearance notch 130 is formed between adjacent first sub-support portions 121 and second sub-support portions 122. A third sub-support portion 123 is disposed within at least one first clearance notch 130. The third sub-support portion 123 supports the flexible screen 12 in the second support area 10B, where the first direction X intersects the second direction Y. The support member 200 includes a first support portion 210 located in the first support area 10A and a second support portion 220 located in the second support area 10B. The first support portion 210 supports the first support portion 110 in contact with the curved cover plate 11, and the second support portion 220 supports the second support portion 120 in contact with the curved cover plate 11. In this embodiment, by supporting the flexible screen 12 with the third sub-support portion 123, the gap between the screen and the curved cover plate 11 during bonding is reduced, the problem of air bubbles generated between the flexible screen 12 area corresponding to the third sub-support portion 123 and the curved cover plate 11 is improved, and the bonding effect is enhanced.

[0040] Optionally, there can be four third sub-support parts 123, with each of the four third sub-support parts 123 located at one of the four first clearance notches 130, in order to improve the problem of air bubbles between the flexible screen 12 area and the curved cover plate 11 and enhance the bonding effect.

[0041] Optionally, the flexible screen 12 includes a corner portion located around the periphery of the flexible screen 12 and bonded to the third sub-support portion 123. The third sub-support portion 123 reduces the gap between the corner portion and the curved cover plate 11 during bonding, reduces the problem of air bubbles at the corner portion, and improves the bonding effect.

[0042] Optionally, the carrier film 100 can be a silicone pad. Silicone pads have a simple structure, are easy to obtain, have good deformation ability, are easy to apply, and are not easy to damage the flexible screen 12.

[0043] In some alternative embodiments, the third sub-bearing portion 123 overlaps with the virtual arc edge formed between the first sub-bearing portion 121 and the second sub-bearing portion 122 on the side opposite to the first bearing portion 110.

[0044] In these optional embodiments, the third sub-support portion 123 is extended outward in a direction away from the first support portion 110, such that the side of the third sub-support portion 123 away from the first support portion 110 overlaps with the virtual arc edge formed between the first sub-support portion 121 and / or the second sub-support portion 122. This can reduce the gap between the corner portion and the curved cover plate 11 during bonding, reduce the problem of air bubbles at the corner portion, and improve the bonding effect.

[0045] Optionally, the “virtual arc edge” as described above refers to the portion that smoothly transitions with the side of the first sub-support portion 121 and the second sub-support portion 122 away from the first support portion 110.

[0046] Optionally, the third sub-support portion 123 is extended outward in a direction away from the first support portion 110, so that the width of the third sub-support portion 123 is equal to that of the first sub-support portion 121 and / or the second sub-support portion 122. The width of the first sub-support portion 121 and / or the second sub-support portion 122 and / or the third sub-support portion 123 is 2.5mm-3.5mm, and the width can be 2.5mm, 2.7mm, 3mm, 3.3mm, or 3.5mm. This can reduce the gap between the corner portion and the curved cover plate 11 during bonding and improve the bonding effect.

[0047] Optionally, the minimum distance between the first sub-support portion and / or the second sub-support portion and the third sub-support portion is ≥2mm, and the minimum distance between the first sub-support portion 121 and / or the second sub-support portion 122 and the third sub-support portion 123 can be 2mm, 2.1mm, 2.2mm, 2.3mm, or 2.5mm. For example, the minimum distance between the first sub-support portion 121 and / or the second sub-support portion 122 and the third sub-support portion 123 can be 2mm, which can improve the problem of wrinkles caused by the overlap of the first sub-support portion 121 and / or the second sub-support portion 122 and the third sub-support portion 123 during bonding.

[0048] In some optional embodiments, the projection of the side of the third sub-support portion 123 away from the first support portion 110 along the third direction Z is an arc-shaped edge 123a, and the third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0049] In these alternative embodiments, the projection of the third sub-support portion 123 away from the first support portion 110 along the third direction Z is an arc-shaped edge 123a to adapt to the shape of the flexible screen 12. For example, the projection of the corner portion along the third direction Z onto the support member 200 is arc-shaped, and the arc-shaped edge 123a adapts to the shape of the corner portion of the flexible screen 12.

[0050] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, a through groove 123b is provided on the third sub-support part 123. The through groove 123b extends from the connection position between the third sub-support part 123 and the first support part 110 in a direction away from the first support part 110.

[0051] In these optional embodiments, the third sub-support portion 123 is provided with a through groove 123b, which can reserve deformation space for the third sub-support portion 123 and improve the problem of wrinkles accumulating in the third sub-support portion 123 during bonding, thereby affecting the bonding effect.

[0052] In some alternative embodiments, the through groove 123b extends perpendicularly to the tangent of the arcuate edge 123a.

[0053] In these optional embodiments, the through groove 123b extends perpendicularly to the tangent of the arc-shaped edge 123a, so as to reserve deformation space in areas prone to wrinkles during the bonding process, thereby reducing wrinkle accumulation. In some optional embodiments, there are multiple through grooves 123b, which are spaced apart, and the minimum distance between two adjacent through grooves 123b is 1.5mm-2.5mm.

[0054] In these optional embodiments, the minimum distance between two adjacent through slots 123b can be 1.5mm, 1.7mm, 2mm, 2.3mm, or 2.5mm. For example, the minimum distance between two adjacent through slots 123b can be 2mm, which avoids the problem of easy damage between adjacent through slots 123b due to the excessive size of the third sub-support portion 123. Optionally, the length of the through slot 123b is 1.25mm-1.75mm, and / or the width of the through slot 123b is 1.5mm-2.5mm. The length of the through groove 123b can be 1.25mm, 1.35mm, 1.5mm, 1.65mm, or 1.75mm, and / or the width of the through groove 123b can be 1.5mm, 1.7mm, 2mm, 2.2mm, or 2.5mm. For example, the length of the through groove 123b can be 1.5mm, and the width of the through groove 123b can be 2mm. This can improve the problem that the third sub-support part 123 on the periphery of the through groove 123b is easily damaged due to the excessive length or width of the through groove 123b. It can also improve the problem that the deformation space reserved in the third sub-support part 123 is small due to the excessive length or width of the through groove 123b, which easily causes wrinkles to accumulate and thus causes air bubbles between the flexible screen 12 and the cover plate during the bonding process.

[0055] In some optional embodiments, the width of the through groove 123b is perpendicular to the extension direction of the through groove 123b, and the width of the through groove 123b gradually increases along the extension direction of the through groove 123b toward the side away from the first support portion 110.

[0056] In these alternative embodiments, the width of the through groove 123b gradually increases towards the side away from the first support portion 110 along the extension direction of the through groove 123b, which can accommodate the situation where the side of the through groove 123b near the first support portion 110 is more prone to wrinkle accumulation than the side of the through groove 123b away from the first support portion 110, thereby further improving the fit.

[0057] Optionally, the surface of the second support 220 near the curved cover plate 11 is curved to accommodate the curved display panel.

[0058] In some alternative embodiments, such as Figures 4 to 6 As shown, the fitting fixture 10 also includes a clamping device 300. The clamping device 300 includes two first clamping portions 310 arranged opposite each other along the first direction X and two second clamping portions 320 arranged opposite each other along the second direction Y. A second clearance notch 340 is formed between adjacent first clamping portions 310 and second clamping portions 320. A third clamping portion 330 is respectively provided in each second clearance notch 340.

[0059] In these optional embodiments, the clamping device 300 is used to clamp the carrier film 100, the first clamping part 310 is used to clamp the first sub-carrier part 121, the second clamping part 320 is used to clamp the second sub-carrier part 122, and the third clamping part 330 is used to clamp the third sub-carrier part 123, so that the third sub-carrier part 123 bends and deforms and attaches to the arc surface of the support member 200. The bending of the third sub-carrier part 123 causes the flexible screen 12 to be pre-bent and conform to the shape before bonding.

[0060] In some alternative embodiments, the projection of the third clamping portion 330 away from the first clamping portion 310 along the third direction Z is arc-shaped. The third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0061] In these alternative embodiments, the projection of the third clamping portion 330 away from the first clamping portion 310 along the third direction Z is arc-shaped, which is compatible with the arc-shaped projection of the third sub-support portion 123 away from the first support portion 110 along the third direction Z. The shape of the third clamping portion 330 and the third sub-support portion 123 are adapted to improve the fitting effect.

[0062] Optionally, the minimum distance between the first clamping part 310 and / or the second clamping part 320 and the third clamping part 330 is ≥3mm. The minimum distance between the first clamping part 310 and / or the second clamping part 320 and the third clamping part 330 can be 3mm, 3.1mm, 3.2mm, 3.3mm, or 3.5mm. For example, the minimum distance between the first clamping part 310 and / or the second clamping part 320 and the third clamping part 330 can be 3mm, which can improve the problem of interference between the movement trajectories of the first clamping part 310 and / or the second clamping part 320 and the third clamping part 330 during the bonding process.

[0063] In some alternative embodiments, the first clamping portion 310, the second clamping portion 320, and the third clamping portion 330 have the same width.

[0064] In these alternative embodiments, the first clamping portion 310, the second clamping portion 320 and the third clamping portion 330 have the same width to facilitate the manufacture of the clamping device 300.

[0065] Optionally, the width of the first clamping part 310 along the first direction X is 2.5mm-3.5mm, and / or the width of the second clamping part 320 along the second direction Y is 2.5mm-3.5mm, and / or the width of the third clamping part 330 is 2.5mm-3.5mm.

[0066] The widths of the first clamping portion 310 and / or the second clamping portion 320 and / or the third clamping portion 330 can be 2.5mm, 2.7mm, 3mm, 3.3mm, or 3.5mm. For example, the width of the first clamping portion 310 and / or the second clamping portion 320 and / or the third clamping portion 330 can be 3mm, which can improve the problem of incomplete pre-bending of the curved surface of the flexible screen 12 caused by the excessively small width of the first clamping portion 310 and / or the second clamping portion 320 and / or the third clamping portion 330, and can also improve the problem of incompatibility with the size of the carrier film 100 caused by the excessively large width of the first clamping portion 310 and / or the second clamping portion 320 and / or the third clamping portion 330.

[0067] Optionally, the widths of the first clamping part 310, the second clamping part 320, and the third clamping part 330 can be the same, which is convenient for manufacturing.

[0068] Optionally, the projection of the third clamping part 330 on the side opposite to the support member 200 in the third direction Z is arc-shaped to adapt to the shape of the third sub-carrying membrane 100 and the corner part.

[0069] The embodiments provided in this application, such as Figure 4 When the bonding fixture 10 shown is used to bond the flexible screen 12 and the curved cover plate 11, the clamping device 300 can first clamp the carrier film 100 and bend and deform it, thereby causing the flexible screen 12 to be pre-bent and conform to the shape as shown. Figure 5 The flexible screen 12 shown improves the problem of air bubbles caused by premature contact between the corner and the curved cover plate 11. Then, the flexible screen 12 is supported by the support member 200 so that the flexible screen 12 and the curved cover plate 11 fit together, improving poor adhesion.

[0070] Optionally, the bonding fixture 10 further includes a pressing member 20 having a receiving groove 21 for accommodating the curved cover plate 11, the opening of the receiving groove 21 facing the support member 200. The curved cover plate 11 can be disposed in the receiving groove 21 of the pressing member 20, and then the flexible screen 12 can be disposed on the bonding fixture 10.

[0071] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A bonding fixture for bonding a flexible screen and a curved cover plate, comprising a first support region and a second support region distributed around the first support region, characterized in that, The fitting fixture includes: The carrier membrane includes a first carrier portion located in the first support area and a second carrier portion located in the second support area. The second carrier portion includes two first sub-carrier portions disposed opposite to each other along a first direction and two second sub-carrier portions disposed opposite to each other along a second direction. A first clearance gap is formed between adjacent first sub-carrier portions and second sub-carrier portions. At least one first clearance gap contains a third sub-carrier portion. The first direction intersects with the second direction. The support member includes a first support portion located in the first support area and a second support portion located in the second support area. The first support portion is used to support the first load-bearing portion, and the second support portion is used to support the second load-bearing portion.

2. The fitting fixture according to claim 1, characterized in that, The side of the third sub-bearing part that faces away from the first bearing part overlaps with the virtual arc edge formed between the first sub-bearing part and the second sub-bearing part; Preferably, the minimum gap between the third sub-support part and the first sub-support part and / or the second sub-support part is ≥2mm.

3. The fitting fixture according to claim 1, characterized in that, The projection of the third sub-support part away from the first support part along the third direction is an arc-shaped edge, and the third direction is perpendicular to the plane containing the first direction and the second direction.

4. The fitting fixture according to claim 3, characterized in that, The third sub-support part is provided with a through groove, which extends from the connection position between the third sub-support part and the first support part in a direction away from the first support part.

5. The fitting fixture according to claim 4, characterized in that, The extension direction of the through groove is perpendicular to the tangent of the arc-shaped edge.

6. The fitting fixture according to claim 4, characterized in that, The width of the through groove is perpendicular to the direction in which it extends, and the width of the through groove gradually increases along the direction in which it extends toward the side away from the first bearing portion.

7. The fitting fixture according to claim 4, characterized in that, There are multiple through slots, which are spaced apart, and the minimum distance between two adjacent through slots is 1.5mm-2.5mm. Preferably, the length of the through groove is 1.25mm-1.75mm, and / or the width of the through groove is 1.5mm-2.5mm.

8. The fitting fixture according to claim 1, characterized in that, The fitting fixture further includes a clamping device, which is arranged around the support member and includes two first clamping portions arranged opposite each other in the first direction and two second clamping portions arranged opposite each other in the second direction. A second clearance notch is formed between adjacent first clamping portions and second clamping portions, and a third clamping portion is respectively provided in each second clearance notch.

9. The fitting fixture according to claim 8, characterized in that, The projection of the third clamping part away from the first clamping part along the third direction is arc-shaped, and the third direction is perpendicular to the plane containing the first direction and the second direction. Preferably, the minimum distance between the first clamping part and / or the second clamping part and the third clamping part is ≥3mm.

10. The fitting fixture according to claim 8, characterized in that, The first clamping part, the second clamping part, and the third clamping part have the same width; Preferably, the width of the first clamping part along the first direction is 2.5mm-3.5mm, and / or the width of the second clamping part along the second direction is 2.5mm-3.5mm, and / or the width of the third clamping part is 2.5mm-3.5mm.

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