Circuit board fixing assembly

Abstract

The utility model discloses a circuit board fixing assembly, which comprises a lower fixing plate and an upper fixing plate arranged above the lower fixing plate, a limiting groove for a PCB (printed circuit board) to partially penetrate is formed between the lower fixing plate and the upper fixing plate, and the PCB is limited through the limiting groove; the upper fixing plate is provided with a receding groove, the receding groove is communicated with the limiting groove, and the limiting surface of the limiting groove to the upper end of the PCB is reduced through the receding groove. According to the jig, the PCB is limited, shaking of the PCB during welding of electronic components is effectively reduced, welding of the PCB is facilitated, and meanwhile the welding speed and the welding precision are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and in particular relates to a circuit board fixing component. Background Art

[0002] PCB board, also known as printed circuit board or printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made using electronic printing technology, it is called a "printed" circuit board. PCB board is an important component, and its quality is directly related to whether the equipment can work properly. PCB board is prone to shaking when soldering electronic components, which makes PCB board soldering very inconvenient, slow, and low-precision; therefore, it is necessary to design a circuit board fixing component to effectively solve the above technical problems. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model aims to provide a circuit board fixing assembly to limit the position of the PCB, thereby avoiding shaking during the welding process.

[0004] In order to achieve the above technical objectives and effects, the utility model is implemented through the following technical solutions:

[0005] A circuit board fixing assembly comprises a lower fixing plate and an upper fixing plate arranged above the lower fixing plate, wherein a limiting groove for a portion of a PCB board to penetrate is formed between the lower fixing plate and the upper fixing plate, and the PCB board is limited by the limiting groove; an avoidance groove is formed on the upper fixing plate, and the avoidance groove is connected with the limiting groove, and the limiting surface of the limiting groove on the upper end of the PCB is reduced by the avoiding groove.

[0006] Furthermore, the lower fixing plate and the upper fixing plate are integrally formed.

[0007] Furthermore, the upper fixing plate is detachably arranged on the upper end of the lower fixing plate by means of locking screws.

[0008] Furthermore, a spring is provided between the upper fixing plate and the lower fixing plate, and in the absence of external force, the spring has a tendency to drive the upper fixing plate to move away from the lower fixing plate.

[0009] Furthermore, the upper fixing plate is provided with a positioning pin, and the lower fixing plate is provided with a positioning hole adapted to the positioning pin.

[0010] Furthermore, outer surfaces of the lower fixing plate and the upper fixing plate are frosted.

[0011] Furthermore, the bottom surface of the lower fixing plate is provided with anti-slip grooves.

[0012] Furthermore, the lower fixing plate and the upper fixing plate are made of plastic.

[0013] The beneficial effects of the utility model are as follows: the fixture of the utility model realizes the restriction of the PCB board, effectively reduces the shaking of the PCB board during the welding of electronic components, facilitates the welding of the PCB board, and improves the welding speed and welding accuracy.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the fixture of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the second embodiment of the fixture of the utility model;

[0018] Figure 3 It is a top view of the second embodiment of the utility model;

[0019] Figure 4 For this utility model Figure 3 Sectional view at AA;

[0020] Figure 5 This is a schematic diagram of the bottom of the lower fixing plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the working state of the first embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the working state of the second embodiment of the utility model.

[0023] Explanation of the numbers in the figure: 1. Lower fixing plate; 2. Upper fixing plate; 3. Limiting groove; 4. Locking screw; 5. Spring; 11. Positioning hole; 12. Anti-slip pattern; 13. Lower avoidance hole; 21. Avoidance groove; 22. Positioning pin; 23. Upper avoidance hole. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] It should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like in the embodiments of the utility model is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the patent of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the patent of the present invention; in addition, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" 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 it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the patent of the present invention can be understood according to specific circumstances.

[0026] Embodiment 1

[0027] See also Figure 1 As shown, a circuit board fixing assembly comprises a lower fixing plate 1 and an upper fixing plate 2 arranged above the lower fixing plate 1, the lower fixing plate 1 and the upper fixing plate 2 are both made of plastic, and the lower fixing plate 1 and the upper fixing plate 2 are integrally formed by injection molding; a limiting groove 3 for a PCB board to partially penetrate is formed between the lower fixing plate 1 and the upper fixing plate 2, and the PCB board is limited by the limiting groove 3; an avoidance groove 21 is provided on the upper fixing plate 2, and the avoidance groove 21 is connected with the limiting groove 3, and the limiting surface of the limiting groove 3 on the upper end of the PCB is reduced by the avoiding groove 21, so as to facilitate the welding of electronic components on the PCB.

[0028] Among them, in this embodiment, in order to improve the anti-slip performance of the fixture, the outer surfaces of the lower fixing plate 1 and the upper fixing plate 2 are frosted, and the bottom surface of the lower fixing plate 1 is provided with anti-slip grooves 12, as shown in the following figure: Figure 5 shown.

[0029] When using, see Figure 6 As shown, after a pair of the jigs are respectively sleeved on a pair of side edges of a PCB through the limiting grooves 3 to which they belong, and then placed on a workbench, electronic components on the PCB can be soldered.

[0030] Embodiment 2

[0031] See also Figure 2-4As shown, a circuit board fixing assembly comprises a lower fixing plate 1 and an upper fixing plate 2 arranged above the lower fixing plate 1, wherein the lower fixing plate 1 and the upper fixing plate 2 are both made of plastic, and the upper fixing plate 2 is detachably arranged on the upper end of the lower fixing plate 1 by means of locking screws 4; a limiting groove 3 for partially inserting a PCB board is formed between the lower fixing plate 1 and the upper fixing plate 2, and the PCB board is limited by the limiting groove 3; an avoidance groove 21 is provided on the upper fixing plate 2, and the avoidance groove 21 is communicated with the limiting groove 3, and the limiting groove 3 on the upper end surface of the PCB is reduced by means of the avoiding groove 21, thereby facilitating the welding of electronic components on the PCB.

[0032] Among them, see Figure 4 As shown, a spring 5 is arranged between the upper fixing plate 2 and the lower fixing plate 1. In the absence of external force, the spring 5 has a tendency to drive the upper fixing plate 2 to move away from the lower fixing plate 1; in the present embodiment, an upper avoidance hole 23 is provided on the lower end surface of the upper fixing plate 2, and a lower avoidance hole 13 is provided on the upper end surface of the lower fixing plate 1. The upper end of the spring 5 extends into the upper fixing plate 2 through the upper avoidance hole 23, and the lower end of the spring 5 extends into the lower fixing plate 1 through the lower avoidance hole 13. The upper end of the spring 5 is connected in contact with the bottom of the upper avoidance hole 23, and the lower end of the spring 5 is connected in contact with the bottom of the lower avoidance hole 13. In addition, in this embodiment, the number of the springs 5 ​​is the same as that of the locking screws 4, and they correspond one to one. During installation, each group of the locking screws 4 is sleeved with a spring 5. During position limiting, as the locking screws 4 rotate into the lower fixing plate 1, the upper fixing plate 2 is driven to move closer to the lower fixing plate 1, and the springs 5 ​​are further compressed. In order to prevent the upper fixing plate 2 from being misaligned during the process of moving closer to or separating from the lower fixing plate 1, in this embodiment, Figure 4 As shown, the upper fixing plate 2 is provided with a positioning pin 22, and the lower fixing plate 1 is provided with a positioning hole 11 adapted to the positioning pin 22. The positioning pin 22 and the positioning hole 11 are provided in four groups. Of course, the number of groups provided above is only one implementation method and is not within the scope of the present application. In actual settings, other numbers of groups may also be used as long as the requirements can be met.

[0033] In addition, in this embodiment, in order to improve the anti-slip performance of the fixture, the outer surfaces of the lower fixing plate 1 and the upper fixing plate 2 are frosted, and the bottom surface of the lower fixing plate 1 is provided with anti-slip grooves 12, as shown in FIG. Figure 5 shown.

[0034] When using, see Figure 7As shown, first, the locking screws 4 in a pair of the jigs are rotated toward the outside of the lower fixing plate 1. At this time, the upper fixing plate 2 moves away from the lower fixing plate 1 under the action of the spring 5, so that the height of the limiting groove 3 formed between the lower fixing plate 1 and the upper fixing plate 2 is greater than the thickness of the PCB board; then, after a pair of the jigs are respectively sleeved on a pair of side edges of a PCB through the limiting grooves 3 to which they belong, the locking screws 4 are rotated toward the inside of the lower fixing plate 1, so that the upper fixing plate 2 presses and fixes the PCB board in the limiting grooves 3; then, the jigs are placed on a workbench, and electronic components can be soldered to the PCB.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A circuit board fixing assembly, characterized in that: The invention comprises a lower fixing plate (1) and an upper fixing plate (2) arranged above the lower fixing plate (1); a limiting groove (3) for a portion of a PCB to penetrate is formed between the lower fixing plate (1) and the upper fixing plate (2); the PCB is limited by the limiting groove (3); an avoidance groove (21) is provided on the upper fixing plate (2); the avoidance groove (21) is communicated with the limiting groove (3); the limiting surface of the limiting groove (3) on the upper end of the PCB is reduced by the limiting groove (21).

2. The circuit board fixing assembly according to claim 1, characterized in that: The lower fixing plate (1) and the upper fixing plate (2) are integrally formed.

3. The circuit board fixing assembly according to claim 1, characterized in that: The upper fixing plate (2) is detachably arranged on the upper end of the lower fixing plate (1) via locking screws (4).

4. The circuit board fixing assembly according to claim 3, characterized in that: A spring (5) is arranged between the upper fixing plate (2) and the lower fixing plate (1); in the absence of external force, the spring (5) has a tendency to drive the upper fixing plate (2) to move away from the lower fixing plate (1).

5. The circuit board fixing assembly according to claim 3, characterized in that: The upper fixing plate (2) is provided with a positioning pin (22), and the lower fixing plate (1) is provided with a positioning hole (11) adapted to the positioning pin (22).

6. The circuit board fixing assembly according to claim 1, characterized in that: The outer surfaces of the lower fixing plate (1) and the upper fixing plate (2) are frosted.

7. The circuit board fixing assembly according to claim 1, characterized in that: The bottom surface of the lower fixing plate (1) is provided with anti-slip grooves (12).

8. The circuit board fixing assembly according to claim 1, characterized in that: The lower fixing plate (1) and the upper fixing plate (2) are made of plastic.

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