A hybrid positioning structure of a clamping groove and a screw

Abstract

This utility model relates to the field of printed circuit board processing technology, specifically disclosing a hybrid positioning structure of slots and screws, including a fixed base, a lateral fixing member, and a side fixing member. The lateral fixing member includes a sandwich panel symmetrically arranged at both ends of the fixed base and a sandwich groove on the inner end and one side of the sandwich panel for accommodating the end of the PCB board. The outer end of the sandwich panel is provided with a self-locking fixing member for self-locking the other side of the PCB board. The side fixing member includes a positioning plate arranged on the side of the fixed base away from the sandwich groove and located between the symmetrical sandwich panels, and a positioning slot on the inner end face of the positioning plate. The sandwich groove and the positioning slot have the same height and are both located at the same horizontal level, which solves the problem that the positioning structure used in traditional PCB boards is complex, the installation operation is cumbersome, and the production and processing efficiency of PCB boards is reduced.

Description

Technical Field

[0001] This application relates to the field of printed circuit board processing technology, and specifically discloses a hybrid positioning structure of slot and screw. Background Technology

[0002] A PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and provides the connections between them. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board. During PCB production, the PCB needs to be fixed in place.

[0003] Existing PCB boards employ complex positioning structures, primarily consisting of pure screw fixing and pure slot and buckle fixing. These structures suffer from low positioning accuracy, weak vibration resistance, and are prone to wear and tear from long-term insertion and removal. Furthermore, they are cumbersome to install and reduce the production efficiency of PCB boards. Therefore, the inventors have developed a hybrid positioning structure combining slots and screws to address these issues. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the traditional PCB board has a complex positioning structure, cumbersome installation operation, and reduced PCB board production and processing efficiency.

[0005] To achieve the above objectives, the basic solution of this utility model provides a hybrid positioning structure of slots and screws, including a fixed base for supporting a PCB board, transverse fixing members symmetrically arranged at both ends of the fixed base for fixing both ends of the PCB board, and a side fixing member arranged on one side of the fixed base for locking one side of the PCB board. The transverse fixing member includes a sandwich seat symmetrically arranged at both ends of the fixed base and a sandwich groove on the inner end and one side of the sandwich seat for accommodating the end of the PCB board. The outer end of the sandwich seat is provided with a self-locking fixing member for self-locking the other side of the PCB board. The side fixing member includes a positioning plate arranged on the side of the fixed base away from the sandwich groove and located between the symmetrical sandwich seats, and a positioning clamping groove on the inner end face of the positioning plate. The groove heights of the sandwich groove and the positioning clamping groove are equal and both are located at the same horizontal level.

[0006] Furthermore, the self-locking fastener includes an end positioning seat located at the outer end of the interlayer seat, a positioning countersunk hole located on one side end face of the end positioning seat, and a positioning screw that can be detachably inserted into the positioning countersunk hole. The radius of the head of the positioning screw is greater than the distance between the central axis of the positioning countersunk hole and the side wall of the interlayer groove.

[0007] Furthermore, a reserved gap is provided between the end of the PCB board and the interlayer groove.

[0008] Furthermore, the fixed base is evenly provided with several support seats for supporting the bottom center structure of the PCB board.

[0009] Furthermore, each of the support bases has a countersunk hole on the side away from the fixed base. The countersunk hole can also be detachably connected to a spare screw. The highest point of the outer periphery of the head of the spare screw is higher than the height of the surface of the support base closest to the PCB board.

[0010] The principle and effect of this solution are as follows: Compared with existing technologies, this utility model uses a horizontal fixing component to embed both ends of the PCB board into a sandwich panel and a sandwich groove to achieve positioning and fixation of both ends of the PCB board, restricting its lateral displacement. A side fixing component, using a positioning plate and a positioning groove, positions the middle of one side of the PCB board, restricting its lateral displacement. Simultaneously, a positioning countersunk hole and a positioning screw are used, with the radius of the positioning screw head being greater than the distance between the central axis of the positioning countersunk hole and the side wall of the sandwich groove. The positioning screw and the positioning countersunk hole work together to lock the end of the PCB board. Pressing the positioning screw achieves self-locking fixation of the PCB board, i.e., the slot positioning limits the PCB board on three sides. The positioning screw then blocks and limits the remaining side of the PCB board, achieving complete positioning and fixation. The structure is simple, installation is convenient, and it greatly improves the production efficiency of PCB boards. It solves the problems of complex positioning structures, cumbersome installation operations, and reduced production efficiency associated with traditional PCB board manufacturing.

[0011] Compared with the prior art, this utility model, by setting a support base, spare screws and spare countersunk holes, facilitates further self-locking and limiting of the side of the PCB board, and further strengthens the PCB structure. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This paper shows a schematic diagram of a hybrid positioning structure combining a slot and a screw, as proposed in an embodiment of this application. Figure 2 This application shows Figure 1 Structural cross-sectional view of AA; Figure 3 This application shows Figure 1Structural sectional view of BB; Figure 4 This application shows Figure 1 A cross-sectional view of the structure of CC. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] The reference numerals in the accompanying drawings include: PCB board 1, fixed base 2, interlayer seat 3, interlayer groove 4, positioning plate 5, positioning slot 6, end positioning seat 7, positioning countersunk hole 8, positioning screw 9, reserved gap 10, support seat 11, spare countersunk hole 12, spare screw 13.

[0016] A hybrid positioning structure combining a slot and a screw, implemented as follows: Figure 1 As shown: This includes a fixed base 2 for supporting the PCB board 1, lateral fasteners symmetrically arranged at both ends of the fixed base 2 for fixing both ends of the PCB board 1, and a side fastener located on one side of the fixed base 2 for locking and fixing one side of the PCB board 1, such as... Figure 1 and Figure 3 As shown, the transverse fixing component includes a sandwich panel 3 symmetrically arranged at both ends of the fixing base 2, and a sandwich groove 4 opened at the inner end and one side of the sandwich panel 3 for accommodating the end of the PCB board 1. The outer end of the sandwich panel 3 is provided with a self-locking fixing component for self-locking the other side of the PCB board 1, such as... Figure 4 As shown, the side fixing component includes a positioning plate 5 located on the side of the fixing base 2 away from the interlayer groove 4 and between the symmetrical interlayer seats 3, and a positioning groove 6 opened on the inner end face of the positioning plate 5, as shown. Figure 1 and Figure 4 As shown, the interlayer groove 4 and the positioning groove 6 have the same height and are both located at the same horizontal level.

[0017] As shown in Figure 2, the self-locking fastener includes an end positioning seat 7 located at the outer end of the interlayer seat 3, a positioning countersunk hole 8 located on one side of the end face of the end positioning seat 7, and a positioning screw 9 detachably inserted into the positioning countersunk hole 8. The radius of the head of the positioning screw 9 is greater than the distance between the central axis of the positioning countersunk hole 8 and the side wall of the interlayer groove 4. Through the positioning countersunk hole 8 and the positioning screw 9, and by limiting the radius of the head of the positioning screw 9 to be greater than the distance between the central axis of the positioning countersunk hole 8 and the side wall of the interlayer groove 4, the positioning screw 9 and the positioning countersunk hole 8 are used to fix the nut of the positioning screw 9 to the end of the PCB board 1. By pressing the positioning screw 9, the PCB board 1 is self-locked and fixed, that is, the slot positioning limits the three sides of the PCB board 1. Then, the positioning screw 9 is used to block and limit the other side of the PCB board 1, so as to completely fix the PCB board 1.

[0018] Among them, such as Figure 3 As shown, a reserved gap 10 is provided between the end of the PCB board 1 and the interlayer groove 4. By providing a reserved gap 10 at one end of the interlayer groove 4, thermal deformation of the PCB board 1 is allowed, thereby achieving the purpose of protecting the structure of the PCB board 1.

[0019] Among them, such as Figure 1 As shown, four support seats 11 are evenly provided on the fixed base 2 to support the bottom center structure of the PCB board 1. By setting the support seats 11, the bottom of the PCB board 1 is supported, and severe deformation is avoided.

[0020] Among them, such as Figure 1 As shown, each side of the support base 11 away from the fixed base has a spare countersunk hole 12. The spare countersunk hole 12 can also be detachably connected to a spare screw 13. The highest point of the outer periphery of the head of the spare screw 13 is higher than the height of the surface of the support base 11 closest to the PCB board 1. By setting the spare countersunk hole 12 and the spare screw 13, the side of the PCB board 1 opposite to the positioning plate 5 is locked and reinforced.

[0021] In the specific implementation of this utility model, the PCB board 1 is first horizontally embedded into the fixed base 2, so that the left and right ends of the PCB board 1 are respectively installed into the interlayer groove 4, and the rear side of the PCB board 1 is installed into the positioning clamping groove 6. Finally, the positioning screw 9 is inserted from the positioning countersunk hole 8, and the head of the positioning screw 9 is used to fix the left and right ends of the PCB board 1 respectively, thus completing the positioning and installation of the PCB board 1.

[0022] Compared with the prior art, this utility model, by setting a lateral fixing component, uses the interlayer seat 3 and the interlayer groove 4 to respectively embed both ends of the PCB board 1 to achieve positioning and fixation of both ends of the PCB board 1, restricting its lateral displacement movement. By setting a side fixing component, using the positioning upright plate 5 and the positioning clamping groove 6, the middle part of one side of the PCB board 1 is positioned, restricting its lateral displacement movement. At the same time, by using the positioning countersunk hole 8 and the positioning screw 9, and limiting the radius of the head of the positioning screw 9 to be greater than the distance between the central axis of the positioning countersunk hole 8 and the side wall of the interlayer groove 4, the positioning screw 9 and the positioning countersunk hole 4 are used to fix the PCB board 1. The purpose of the hole 8 is to lock the nut of the positioning screw 9 to the end of the PCB board 1. By pressing the positioning screw 9, the PCB board 1 is self-locked and fixed. That is, the slot positioning limits the three sides of the PCB board 1. Then, the positioning screw 9 is used to block and limit the other side of the PCB board 1 to achieve the purpose of completely positioning and fixing the PCB board 1. The structure is simple and easy to install, which greatly improves the production and processing efficiency of the PCB board 1. It solves the problem that the positioning structure of the traditional PCB board 1 is complicated, the installation operation is cumbersome, and the production and processing efficiency of the PCB board 1 is reduced.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hybrid positioning structure combining a slot and a screw, characterized in that: The device includes a fixed base for supporting a PCB board, lateral fasteners symmetrically arranged at both ends of the fixed base for fixing both ends of the PCB board, and a side fastener arranged on one side of the fixed base for locking one side of the PCB board. The lateral fasteners include interlayer seats symmetrically arranged at both ends of the fixed base and an interlayer groove on the inner end and one side of the interlayer seats for accommodating the end of the PCB board. The outer end of the interlayer seats is provided with a self-locking fastener for locking the other side of the PCB board. The side fasteners include a positioning plate located on the side of the fixed base away from the interlayer groove and between the symmetrical interlayer seats, and a positioning slot on the inner end face of the positioning plate. The interlayer groove and the positioning slot have the same height and are both at the same horizontal level.

2. The hybrid positioning structure of slot and screw according to claim 1, characterized in that, The self-locking fastener includes an end positioning seat located at the outer end of the interlayer seat, a positioning countersunk hole located on one side end face of the end positioning seat, and a positioning screw that can be detachably inserted into the positioning countersunk hole. The radius of the head of the positioning screw is greater than the distance between the central axis of the positioning countersunk hole and the side wall of the interlayer groove.

3. The hybrid positioning structure of slot and screw according to claim 1, characterized in that, A pre-reserved gap is provided between the end of the PCB board and the interlayer groove.

4. A hybrid positioning structure of slot and screw according to claim 1 or 2, characterized in that, The fixed base is evenly provided with several support seats for supporting the bottom middle structure of the PCB board.

5. The hybrid positioning structure of slot and screw according to claim 4, characterized in that, Each of the support bases has a countersunk hole on the side away from the fixed base. The countersunk hole can also be detachably connected to a spare screw. The highest point of the outer periphery of the head of the spare screw is higher than the height of the surface of the support base closest to the PCB board.

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