FPC (Flexible Printed Circuit) press-fit jig after double-sided real installation

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) pressing jig after double-sided real installation. Relates to the technical field of FPC mounting. Comprising a jig cover plate used for protecting a top layer component of the FPC product, and a cover plate receding groove is formed in the jig cover plate; the cover plate silica gel pad is laid on the bottom face of the jig cover plate and plays a role in buffering and filling during pressing, and a first rubber pad receding groove is formed in the cover plate silica gel pad and located below the cover plate receding groove; the jig bottom plate is used for protecting bottom layer components of the FPC product, and a bottom plate receding groove is formed in the jig bottom plate; the bottom plate silica gel pad is laid on the jig bottom plate and plays a role in buffering and filling during pressing, and a second rubber pad receding groove is formed in the bottom plate silica gel pad and located above the bottom plate receding groove. The press-fit jig can be used for press-fit of the double-sided FPC after real installation, is accurate in positioning, and can effectively prevent components from being damaged in the press-fit process.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC installation, in particular to an FPC pressing fixture after double-sided installation. Background Art

[0002] Double-sided FPC is widely used in various electronic products that require high integration and flexible wiring, such as mobile phones, tablets, wearable devices, automotive electronics, etc. In these products, double-sided FPC not only improves the performance and reliability of the circuit board, but also meets the product's requirements for spatial layout and flexibility. Compared with single-sided FPC, double-sided FPC has better thermal conductivity. Since there are conductive patterns on both sides, heat can be more evenly distributed throughout the board, thereby reducing the risk of local overheating. This is very important for improving the stability and reliability of the equipment.

[0003] In the prior art, the failure of normal lamination after cold or hot lamination of double-sided FPC may lead to problems such as uneven density, edge collapse, cracking, wire skipping, reduced processing accuracy, loose adhesive tape and easy peeling and delamination. These problems may affect the performance, stability and reliability of FPC, and even cause product failure. If manual lamination is used, it is difficult to ensure that the pressure, speed and position of each lamination are completely consistent, which may lead to unstable lamination quality and prone to problems such as bubbles and misalignment. Utility Model Content

[0004] The purpose of the utility model is to provide a double-sided FPC pressing jig for pressing the product with cold or hot pressing adhesive after double-sided FPC is installed, and for the FPC with components or other special-shaped devices attached, the pressing of the product is completed without damaging the FPC and the attached devices.

[0005] To achieve the above purpose, the present application proposes a double-sided post-installation FPC pressing fixture, comprising:

[0006] The jig cover is used to protect the top components of the FPC product, and a cover clearance groove is opened on the jig cover;

[0007] The cover plate silicone pad is laid on the bottom surface of the jig cover plate and plays a buffering and protective role during pressing. A first rubber pad yielding groove is opened on the cover plate silicone pad and the first rubber pad yielding groove is located below the cover plate yielding groove;

[0008] The fixture bottom plate is used to protect the bottom components of the FPC product. A bottom plate clearance groove is opened on the fixture bottom plate.

[0009] The bottom plate silicone pad is laid on the bottom plate of the jig to play a buffering and protective role during pressing. A second rubber pad paving groove is opened on the bottom plate silicone pad, and the second rubber pad paving groove is located above the bottom plate paving groove.

[0010] Furthermore, it also includes a cover release film, which is laid on the bottom surface of the cover silicone pad and is used to release the fixture and the FPC product; a first release clearance groove is opened on the cover release film, and the first release clearance groove is located below the first rubber pad clearance groove.

[0011] Furthermore, it also includes a bottom plate release film, which is laid on the bottom plate silicone pad and is used to release the fixture and the FPC product; a second release clearance groove is opened on the bottom plate release film, and the second release clearance groove is located above the second rubber pad clearance groove.

[0012] Furthermore, during lamination, the FPC product is located between the cover plate release film and the bottom plate release film.

[0013] Furthermore, the jig cover plate, cover plate silicone pad, and cover plate release film are surrounded by jig positioning holes, the FPC product is surrounded by FPC positioning holes, and the jig bottom plate is surrounded by positioning pins, which pass through the FPC positioning holes and are placed in the jig positioning holes during pressing.

[0014] Furthermore, during pressing, the top-layer components are located in the cover plate clearance groove, the first rubber pad clearance groove, and the first release clearance groove; the bottom-layer components are located in the bottom plate clearance groove, the second rubber pad clearance groove, and the second release clearance groove.

[0015] Furthermore, the opening of the cover plate give way groove is larger than the edge of the top component position, and the height of the cover plate give way groove is more than 1 mm greater than the height of the top component; the opening of the bottom plate give way groove is larger than the edge of the bottom component position, and the height of the bottom plate give way groove is more than 1 mm greater than the height of the bottom component.

[0016] Furthermore, the opening inner diameter of the first rubber pad giving way groove is smaller than the opening inner diameter of the cover plate giving way groove; the opening inner diameter of the second rubber pad giving way groove is smaller than the opening inner diameter of the bottom plate giving way groove;

[0017] As a further step, the opening inner diameter of the first release groove is the same as the opening inner diameter of the first rubber pad groove; the opening inner diameter of the second release groove is the same as the opening inner diameter of the second rubber pad groove.

[0018] As a further step, the jig cover plate and the jig bottom plate are made of fiberglass board.

[0019] Compared with the prior art, the above technical solution adopted by the utility model has the following advantages: the pressing fixture can be used for pressing after double-sided FPC is installed, with accurate positioning, and can effectively prevent components from being damaged during the pressing process;

[0020] The pressing fixture is simple in design, easy to operate, and highly stable, which reduces the difficulty of operation and the error rate, and improves production efficiency and product quality.

[0021] This pressing jig can ensure the accurate positioning of the FPC product on the jig. This precise positioning ensures the position consistency of each product during the pressing process.

[0022] This pressing fixture can be customized according to different FPC products and production requirements, and has high adaptability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the upper structure of the FPC pressing fixture after double-sided mounting;

[0024] Figure 2 This is a schematic diagram of the FPC product structure;

[0025] Figure 3 This is a schematic diagram of the lower structure of the FPC pressing fixture after double-sided mounting.

[0026] Among them: 1. jig cover, 2. cover silicone pad, 3. cover release film, 4. jig positioning hole, 5. cover clearance groove, 6. first rubber pad clearance groove, 7. first release clearance groove, 8. FPC product, 9. FPC positioning hole, 10. auxiliary materials to be pressed, 11. bottom layer components, 12. top layer components, 13. jig bottom plate, 14. bottom plate silicone pad, 15. bottom plate release film, 16. positioning pins; 17. bottom plate clearance groove; 18. second rubber pad clearance groove; 19. second release clearance groove. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] See also Figure 1-3 This embodiment provides a double-sided FPC pressing fixture, including:

[0033] The fixture cover 1 is used to protect the top components of the FPC product;

[0034] The cover plate silicone pad 2 is bonded to the bottom surface of the jig cover plate by double-sided tape to play a buffering and protective role during pressing;

[0035] The cover release film 3 is adhered to the bottom surface of the cover silicone pad by double-sided tape and is used for releasing the jig and FPC product;

[0036] The jig positioning holes 4 are respectively arranged on the jig cover plate, the cover plate silicone pad, and the cover plate release film, and are used for positioning between the jig cover plate, the FPC product, and the jig bottom plate during lamination;

[0037] The cover plate clearance grooves 5 are used to avoid the top-level components, and their number and position correspond to the number and position of the top-level components; preferably, the opening of the cover plate clearance grooves is larger than the edge of the top-level component position, such as 10mm, and the height of the cover plate clearance grooves is greater than the height of the top-level components by more than 1mm;

[0038] The first rubber pad clearance groove 6 is used for avoiding top-level components, and its number and position correspond to the number and position of the top-level components; preferably, the opening of the first rubber pad clearance groove is larger than the edge of the top-level component position, such as 5mm, which can protect the FPC product from being crushed by the edge of the cover plate clearance groove during pressing.

[0039] The first mold release groove 7 has an opening that is as large as the opening of the first rubber pad groove.

[0040] An FPC product 8 to be pressed is provided with an FPC positioning hole 9, auxiliary materials to be pressed 10, bottom layer components 11, and top layer components 12;

[0041] The fixture bottom plate 13 is used to protect the bottom components of the FPC product;

[0042] The bottom plate silicone pad 14 is bonded to the bottom plate of the jig by double-sided tape to provide buffer protection during lamination;

[0043] The bottom plate release film 15 is adhered to the bottom plate silicone pad by double-sided tape and is used for the release of the jig and FPC product;

[0044] Positioning pins 16 are arranged around the jig bottom plate, and are placed in the jig positioning holes through the bottom plate silicone pad, the bottom plate release film, and the FPC positioning holes, so as to position the jig bottom plate, the FPC product, and the jig cover plate;

[0045] The bottom plate clearance groove 17 is used for avoiding the bottom layer components, and its number and position correspond to the number and position of the bottom layer components; preferably, the opening of the bottom plate clearance groove is larger than the edge of the bottom layer component position, such as 10mm, and the height of the bottom plate clearance groove is greater than the height of the bottom layer components by more than 1mm;

[0046] The second rubber pad clearance groove 18 is used for avoiding the bottom layer components, and its number and position correspond to the number and position of the bottom layer components; preferably, the opening of the second rubber pad clearance groove is larger than the edge of the bottom layer component position, such as 5mm, which can protect the FPC product from being crushed by the edge of the bottom plate clearance groove during pressing.

[0047] The opening of the second mold release groove 19 is as large as the opening of the second rubber pad groove.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A double-sided FPC pressing fixture, characterized in that: include: The jig cover is used to protect the top components of the FPC product, and a cover clearance groove is opened on the jig cover; The cover plate silicone pad is laid on the bottom surface of the jig cover plate and plays a buffering and protective role during pressing. A first rubber pad yielding groove is opened on the cover plate silicone pad and the first rubber pad yielding groove is located below the cover plate yielding groove; The fixture bottom plate is used to protect the bottom components of the FPC product. A bottom plate clearance groove is opened on the fixture bottom plate. The bottom plate silicone pad is laid on the bottom plate of the jig to play a buffering and protective role during pressing. A second rubber pad paving groove is opened on the bottom plate silicone pad, and the second rubber pad paving groove is located above the bottom plate paving groove.

2. According to the double-sided post-installation FPC pressing fixture of claim 1, it is characterized in that: It also includes a cover release film, which is laid on the bottom surface of the cover silicone pad and is used to release the fixture and the FPC product; a first release clearance groove is opened on the cover release film, and the first release clearance groove is located below the first rubber pad clearance groove.

3. According to the double-sided post-mounting FPC pressing fixture of claim 2, it is characterized in that: It also includes a bottom plate release film, which is laid on the bottom plate silicone pad and is used to release the fixture and the FPC product; a second release clearance groove is opened on the bottom plate release film, and the second release clearance groove is located above the second rubber pad clearance groove.

4. According to the double-sided post-mounting FPC pressing fixture of claim 3, it is characterized in that: During lamination, the FPC product is located between the cover release film and the bottom release film.

5. According to the double-sided post-mounting FPC pressing fixture of claim 3, it is characterized in that: The jig cover plate, cover plate silicone pad, and cover plate release film are provided with jig positioning holes around them, the FPC product is provided with FPC positioning holes around them, and the jig bottom plate is provided with positioning pins around them. When pressing, the positioning pins pass through the FPC positioning holes and are placed in the jig positioning holes.

6. The double-sided post-mounting FPC pressing jig according to claim 1, characterized in that: During pressing, the top-layer components are located in the cover plate recess, the first rubber pad recess, and the first release recess; the bottom-layer components are located in the bottom plate recess, the second rubber pad recess, and the second release recess.

7. The double-sided post-mounting FPC pressing jig according to claim 3, characterized in that: The opening of the cover plate give way groove is larger than the edge of the top component position, and the height of the cover plate give way groove is more than 1 mm greater than the height of the top component; the opening of the bottom plate give way groove is larger than the edge of the bottom component position, and the height of the bottom plate give way groove is more than 1 mm greater than the height of the bottom component.

8. The double-sided post-mounting FPC pressing jig according to claim 7, characterized in that: The opening inner diameter of the first rubber pad giving way groove is smaller than the opening inner diameter of the cover plate giving way groove; the opening inner diameter of the second rubber pad giving way groove is smaller than the opening inner diameter of the bottom plate giving way groove.

9. The double-sided post-mounting FPC pressing jig according to claim 8, characterized in that: The opening inner diameter of the first release groove is the same as the opening inner diameter of the first rubber pad groove; the opening inner diameter of the second release groove is the same as the opening inner diameter of the second rubber pad groove.

10. The double-sided post-mounting FPC pressing jig according to claim 1, characterized in that: The jig cover plate and the jig bottom plate are made of glass fiber board.

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