Composite circuit board bonding jig

Abstract

The utility model discloses a kind of composite circuit board locking fixtures, fixture ontology is equipped with one mainboard positioning part, several air-voids, more than one small board positioning member and more than one supporting member, mainboard positioning part is used to fix main circuit board, air-void is used to avoid the component on each circuit board, small board positioning member is used to support small circuit board, supporting member is used to place internal thread hole column on the main circuit board.The utility model can support and position internal thread hole column on small circuit board and main circuit board simultaneously by setting small board positioning member and supporting member on fixture ontology, and make its end portion all abut on main circuit board inverted buckled on its upper end, so as to facilitate sequentially locking several screws respectively used for fixing internal thread hole column and small circuit board from the top of main circuit board, the operation of locking small circuit board and internal thread hole column on main circuit board can be assisted to complete by the positioning of fixture once, efficiently and quickly.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a locking fixture for composite circuit boards. Background Technology

[0002] A composite circuit board is a type of circuit board in which one or more smaller circuit boards are mounted and fixed on a main circuit board. Unlike a single multilayer circuit board, a composite circuit board has more space for the layout of circuits and components. The manufacturing process of each circuit board is simpler, the cost is lower, and the yield rate is higher. The connections between the circuit boards are also clearer and more straightforward, making it suitable for the current trend of integration and miniaturization in electronic devices. In practical applications, because the components on multiple circuit boards are relatively concentrated, heat dissipation components such as fans are often mounted on the main circuit board. The assembly operation of a composite circuit board requires multiple flipping and positioning of the main circuit board, which is cumbersome and makes it difficult to improve assembly efficiency. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a composite circuit board locking fixture. The fixture can assist in locking the small circuit board and the internally threaded post onto the main circuit board with a single positioning, which is efficient and fast.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A composite circuit board locking fixture includes a fixture body. The composite circuit board includes a main circuit board and one or more smaller circuit boards that can be mounted thereon. One end of the main circuit board and each of the smaller circuit boards is equipped with one or more internally threaded post holes extending outwards. The main circuit board has a plurality of positioning holes that mate with each of the internally threaded post holes. The fixture body is provided with:

[0006] A motherboard positioning part is provided at the upper end of the fixture body for fixing the main circuit board and accommodating components at one end of it;

[0007] Several clearance portions, including several first through slots disposed inside the main board positioning portion and penetrating the fixture body, are used to avoid components on the main circuit board and / or each small circuit board.

[0008] One or more small board positioning components can be detachably fixed on the main board positioning part, and each of the small board positioning components is a frame structure and is mounted on the periphery of a first through slot and used to support a small circuit board. Each of the small board positioning components has a second through slot connected to it directly above the first through slot, and each second through slot is used to accommodate a component at one end of the small circuit board.

[0009] One or more support members can be detachably fixed on the fixture body and located inside the main board positioning part for placing the internal threaded hole post on the main circuit board. Each internal threaded hole post can be locked and fixed at one end of the main circuit board and can be used to support and fix a small circuit board and / or components.

[0010] As a further explanation of the above technical solution:

[0011] In the above technical solution, the motherboard positioning part is a stepped slot, including a positioning slot and a clearance slot. The positioning slot is adapted to the outer contour of the main circuit board, and the clearance slot can accommodate all the components at one end of the main circuit board.

[0012] In the above technical solution, the positioning groove is provided with one or more anti-foolproof components and / or large plate positioning components.

[0013] In the above technical solution, the upper end of the fixture body is provided with one or more control clearance grooves connected to the positioning groove around the positioning groove.

[0014] In the above technical solution, each of the support members is provided with one or more positioning slots for placing internally threaded post.

[0015] In the above technical solution, the fixture body includes a positioning plate, a suspended plate and a clearance plate that are stacked and detachably fixed together in sequence. The positioning plate and the suspended plate are provided with the main positioning part, and the clearance plate is provided with the clearance part, the small plate positioning part and the support part.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a small plate positioning component and a support component on the fixture body, the internal threaded hole post on the small circuit board and the main circuit board can be supported and positioned simultaneously, and the ends of the posts can be abutted against the main circuit board that is upside down on top of them. This makes it easy to lock several screws used to fix the internal threaded hole post and the small circuit board sequentially from the top of the main circuit board. The operation of locking the small circuit board and the internal threaded hole post onto the main circuit board can be completed with the help of the fixture in one positioning, which is efficient and fast. Attached Figure Description

[0017] Figure 1 This is a side view of the composite circuit board in this embodiment.

[0018] Figure 2 This is a top view of the locking fixture in this embodiment;

[0019] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4This is a schematic diagram of the composite circuit board placed on the locking fixture in this embodiment;

[0021] Figure 5 yes Figure 3 Enlarged view of section B in the middle.

[0022] In the diagram: 10. Fixture body; 20. Main circuit board; 30. Small circuit board; 40. Main board positioning part; 50. Clearance part; 60. Small board positioning component; 70. Support component; 1. Internal threaded hole post; 2. Positioning hole; 3. First through groove; 4. Second through groove; 5. Positioning groove; 6. Clearance groove; 7. Anti-fooling component; 8. Positioning component; 9. Control clearance groove; 11. Positioning hole groove; 12. Screw; 13. Component; 14. Buffer pad; 15. Buffer washer. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] For ease of understanding, Figure 1The diagram shows the structure of the composite circuit board in this embodiment. The composite circuit board includes a main circuit board 20 and a small circuit board 30 mounted on it. One end of the main circuit board 20 and each small circuit board 30 is equipped with one or more internally threaded post 1 extending outward. The main circuit board 20 is provided with a plurality of positioning holes 2 that are adapted to the internally threaded post 1. The present invention aims to improve its positioning fixture so that after one positioning, a plurality of screws 12 can be locked onto the main circuit board 20 one by one, so as to lock and fix the small circuit board 30 and the internally threaded post 1 onto the main circuit board 20.

[0026] like Figure 2-3 As shown, a composite circuit board locking fixture includes a fixture body 10; the fixture body 10 is provided with:

[0027] A motherboard positioning part 40 is provided at the upper end of the fixture body 10 for fixing the main circuit board 20 and accommodating the components 13 at one end of it.

[0028] A plurality of clearance portions 50, including a plurality of first through slots 3 disposed inside the main board positioning portion 40 and penetrating through the fixture body 10, for avoiding components 13 on the main circuit board 20 and / or each small circuit board 30.

[0029] One or more small board positioning components 60 can be detachably fixed on the main board positioning part 40, and each small board positioning component 60 is a frame structure and is mounted on the periphery of a first through slot 3 to support a small circuit board 30. Each small board positioning component 60 is provided with a second through slot 4 connected to it directly above the first through slot 3. Each second through slot 4 is used to accommodate a component 13 at one end of a small circuit board 30.

[0030] One or more support members 70 can be detachably fixed on the fixture body 10 and located inside the main board positioning part 40 for placing the internal threaded post 1 on the main circuit board 20. Each internal threaded post 1 can be locked and fixed at one end of the main circuit board 20 and can be used to support and fix a small circuit board 30 and / or component 13.

[0031] In this embodiment, as Figure 3 As shown, the motherboard positioning part 40 is a stepped slot, including a positioning groove 5 and a clearance groove 6. The positioning groove 5 is adapted to the outer contour of the main circuit board 20, and the clearance groove 6 can accommodate all components 13 at one end of the main circuit board 20. The upper end of the fixture body 10 has one or more control clearance grooves 9 connected to the positioning groove 5 to facilitate the removal of the composite circuit board. Each support member 70 has one or more positioning slots 11 for placing the internally threaded post 1. Figure 2 As shown, the positioning groove 5 is provided with one or more anti-foolproof parts 7 and / or large plate positioning parts 8.

[0032] like Figure 3 As shown, in this embodiment, the fixture body 10 includes a positioning plate 11, a suspended plate 12 and a clearance plate 13 that are stacked and detachably fixed together. The positioning plate 11 and the suspended plate 12 are provided with a main plate positioning part 40, and the clearance plate 13 is provided with a clearance part 50, a small plate positioning part 60 and a support part 70.

[0033] like Figure 3-4 As shown, in use, first, invert the small circuit board 30 onto the small board positioning piece 60, allowing its components 13 to fall into the second through slot 4. Then, place the internally threaded post 1 into the positioning slot 11 of the support piece 70. Align the positioning structure on the main circuit board 20 with the anti-fooling piece 7 and positioning piece 8 on the positioning plate 11 and invert it onto the main board positioning part 40. All components 13 on the main circuit board 20 fall into the clearance slot 6, and all internally threaded posts 1 abut against the lower end of the main circuit board 20 and are located directly below a positioning hole 2. After completion, screws 12 can be locked into each positioning hole 2 to fix all internally threaded posts 1 and their small circuit boards 30 onto the main circuit board 20, completing the assembly of the composite circuit board. Finally, insert your finger into the control clearance slot 9 to remove the composite circuit board. Subsequently, the cooling fan or other components can be directly fixed onto the internally threaded positioning posts 1 on the main circuit board 20.

[0034] like Figure 5 As shown, in application, depending on the actual situation, a buffer pad 14 can be installed at the bottom of the positioning slot 11 on the support 70 to elevate the internally threaded post 1, thereby adjusting the upper end face of the internally threaded post 1 on the support 70 to the same horizontal plane as the upper end face of several internally threaded posts 1 on the small circuit board 30; alternatively, a buffer washer 15 can be placed at the upper end of the support 70 and around the internally threaded post 1 to guide the internally threaded post 1 and reduce the impact force of the internally threaded post 1 on the main circuit board 20 during the locking of the screw 12. After locking is completed and the composite circuit board is removed, the buffer washer 15 can be removed from the internally threaded post 1 without affecting the use of the composite circuit board.

[0035] This utility model, by setting a small plate positioning component 60 and a support component 70 on the fixture body 10, can simultaneously support and position the internally threaded post 1 on the small circuit board 30 and the main circuit board 20, and make its ends abut against the main circuit board 20 which is upside down on its upper end. This facilitates the sequential locking of several screws 12 used to fix the internally threaded post 1 and the small circuit board 30 from the top of the main circuit board 20. The operation of locking the small circuit board 30 and the internally threaded post 1 onto the main circuit board 20 can be completed with one positioning of the fixture, which is efficient and fast.

[0036] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A composite circuit board locking fixture, comprising a fixture body, wherein the composite circuit board includes a main circuit board and one or more small circuit boards that can be mounted thereon, wherein one end of the main circuit board and each of the small circuit boards is provided with one or more internally threaded post extending outward therefrom, and the main circuit board is provided with a plurality of positioning holes that are adapted to each of the internally threaded post; characterized in that, The fixture body is provided with: A motherboard positioning part is provided at the upper end of the fixture body for fixing the main circuit board and accommodating components at one end of it; Several clearance portions, including several first through slots disposed inside the main board positioning portion and penetrating the fixture body, are used to avoid components on the main circuit board and / or each small circuit board. One or more small board positioning components can be detachably fixed on the main board positioning part, and each of the small board positioning components is a frame structure and is mounted on the periphery of a first through slot and used to support a small circuit board. Each of the small board positioning components has a second through slot connected to it directly above the first through slot, and each second through slot is used to accommodate a component at one end of the small circuit board. One or more support members can be detachably fixed on the fixture body and located inside the main board positioning part for placing the internal threaded hole post on the main circuit board. Each internal threaded hole post can be locked and fixed at one end of the main circuit board and can be used to support and fix a small circuit board and / or components.

2. The composite circuit board locking fixture according to claim 1, characterized in that, The motherboard positioning part is a stepped slot, including a positioning slot and a clearance slot. The positioning slot is adapted to the outer contour of the main circuit board, and the clearance slot can accommodate all the components at one end of the main circuit board.

3. The composite circuit board locking fixture according to claim 2, characterized in that, The positioning groove is provided with one or more anti-foolproof components and / or large plate positioning components.

4. A composite circuit board locking fixture according to claim 2, characterized in that, The upper end of the fixture body is provided with one or more control clearance slots connected to the positioning slot.

5. A composite circuit board locking fixture according to claim 1, characterized in that, Each of the aforementioned support members has one or more positioning slots for accommodating internally threaded post pins.

6. A composite circuit board locking fixture according to any one of claims 1-5, characterized in that, The fixture body includes a positioning plate, a suspended plate, and a clearance plate that are stacked and detachably fixed together. The positioning plate and the suspended plate are provided with the main positioning part, and the clearance plate is provided with the clearance part, the small plate positioning part, and the support part.

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