Printed circuit board

Abstract

The utility model belongs to the technical field of circuit boards, and particularly relates to a printed circuit board, which comprises a printed circuit board, four end corners of the printed circuit board are respectively provided with a fixing hole, and the opening end of each fixing hole on the back surface of the printed circuit board is connected with a movable sleeve; the bottom of the movable sleeve is movably installed in the bottom sleeve, the deformation mechanism is installed in the bottom sleeve, and the side blocks are fixedly installed on the two sides of the bottom sleeve respectively. In this way, the movable sleeves can move towards the interior of the bottom sleeve, at the moment, the stress columns and the gaskets can deform to be matched with the downward moving depths of the movable sleeves, and in this way, the descending depths of all the movable sleeves can be actually matched according to actual installation requirements even if the installation face is uneven in the actual use process; therefore, the printed circuit board can be stably installed on the uneven surface of a butt joint object.

Description

Technical Field

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

[0002] Printed circuit boards (PCBs) are the support for electronic components and the provider of electrical connections. They are widely used in communication electronics, consumer electronics, computers, automotive electronics, industrial control, medical equipment, national defense, aerospace, and other fields. They are circuit boards with copper circuit patterns formed according to a predetermined design on insulating and heat-insulating materials that are not easy to bend. They have the function of connecting various electronic components according to a predetermined circuit and playing an electrical connection role.

[0003] When in use, printed circuit boards are installed inside relative equipment, and special installation areas are reserved inside these equipment. However, on some equipment with a long service life, there are uneven scars in the installation area. In this case, during the installation of the printed circuit board, the convex and concave surface will form a low-voltage contact with the bottom of the printed circuit board. At this time, if the bolts on the printed circuit board are tightened as in the conventional installation method, the convex and concave surface will cause damage to the printed circuit board, thereby causing damage to the printed circuit board. Therefore, the printed circuit board needs to be improved according to such situations. Utility Model Content

[0004] The utility model aims to provide a printed circuit board. When the printed circuit board is used, it will be installed inside a relative device, and a special installation area will be reserved inside these devices. However, on some devices with a long service life, there are uneven scratches in the installation area. In this case, during the installation of the printed circuit board, the uneven surface will form a low-voltage contact with the bottom of the printed circuit board. At this time, if the bolts on the printed circuit board are tightened like the conventional installation method, the uneven surface will cause damage to the printed circuit board, thereby causing damage to the printed circuit board. Therefore, it is necessary to improve the printed circuit board according to such a situation.

[0005] To achieve the above object, the utility model provides the following technical solution: a printed circuit board, comprising a printed circuit board, wherein a fixing hole is respectively opened at four end corners of the printed circuit board, and an active sleeve is connected to the open end of each fixing hole on the back of the printed circuit board;

[0006] The bottom of the movable sleeve is movably mounted inside the bottom sleeve, a deformation mechanism is installed inside the bottom sleeve, a side block is fixedly mounted on both sides of the bottom sleeve, and the other side of the side block is movably mounted inside the slide groove.

[0007] In order to reduce the extrusion damage caused by the corresponding bottom sleeve when the movable sleeve moves downward, as a preferred printed circuit board of the utility model, the deformation mechanism includes a gasket and a force column, the bottom of the gasket is placed on the inner wall of the longitudinal end of the bottom sleeve, and a group of force columns are evenly installed on the outer wall of the upper surface of the gasket.

[0008] In order to enable the movable sleeve to move inside the bottom sleeve, as a preferred printed circuit board of the utility model, the top of the force-bearing column is in movably contact with the outer wall of the bottom of the movable sleeve, and the force-bearing column and the side block are both made of deformable hard rubber.

[0009] In order to enable the gasket to be installed inside the movable sleeve, as a preferred printed circuit board of the utility model, the inner diameter of the top opening of the bottom sleeve is adapted to the maximum diameter of the movable sleeve, and the inner diameter of the bottom opening of the bottom sleeve is smaller than the maximum diameter of the movable sleeve.

[0010] In order to make the movable sleeve maintain a stable up and down moving track inside the bottom sleeve, as a preferred embodiment of the printed circuit board of the utility model, the slide groove is opened on the inner wall of the bottom sleeve, and two slide grooves are symmetrically opened inside the bottom sleeve.

[0011] In order to make the side block fit perfectly on the outer wall of the movable sleeve, as a preferred embodiment of the printed circuit board of the utility model, one side outer wall of the side block is an arc-shaped structure, and the arc-shaped outer wall of the side block is adapted to the curvature of the outer wall of the movable sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When installing and fixing the printed circuit board, align the bottom sleeve at the bottom of the printed circuit board with the docking hole, and then pass the bolts used for fixing through the fixing hole, the movable sleeve and the bottom sleeve to connect with the docking hole. When the bolts are tightened, the printed circuit board will move downward with the tightening effect, thereby squeezing the movable sleeve downward, so that the movable sleeve will move toward the inside of the bottom sleeve. At this time, the force column and the washer will deform to match the downward movement depth of the movable sleeve. In this way, even if the installation surface is uneven in actual use, the descending depth of each set of movable sleeves can be actually matched according to actual installation needs, so that the printed circuit board can achieve a stable installation effect on the uneven surface of the docking object. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the movable sleeve and the bottom sleeve of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the bottom sleeve of the utility model.

[0018] In the figure: 1. printed circuit board; 2. fixing hole; 3. movable sleeve; 4. bottom sleeve; 5. gasket; 6. load-bearing column; 7. side block; 8. slide groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides the following technical solutions: a printed circuit board, comprising a printed circuit board 1, wherein a fixing hole 2 is respectively provided at four end corners of the printed circuit board 1, and a movable sleeve 3 is connected to the open end of each fixing hole 2 on the back of the printed circuit board 1;

[0021] The bottom of the movable sleeve 3 is movably mounted inside the bottom sleeve 4 , a deformation mechanism is installed inside the bottom sleeve 4 , a side block 7 is fixedly mounted on both sides of the bottom sleeve 4 , and the other side of the side block 7 is movably mounted inside the slide groove 8 .

[0022] Preferably: the deformation mechanism includes a gasket 5 and a force-bearing column 6, the bottom of the gasket 5 is placed on the inner wall of the longitudinal end of the bottom sleeve 4, a group of force-bearing columns 6 are installed at equal intervals on the outer wall of the upper surface of the gasket 5, the top of the force-bearing column 6 is in movably contact with the outer wall of the bottom of the movable sleeve 3, and the force-bearing column 6 and the side block 7 are both made of deformable hard rubber material.

[0023] During specific use, when the movable sleeve 3 is forced to move downward inside the bottom sleeve 4, the gasket 5 and the force-bearing column 6 will be deformed. In this way, when the printed circuit board 1 is fixed by bolts, the printed circuit board 1 can also effectively squeeze the movable sleeve 3 and the bottom sleeve 4, so that the printed circuit board 1 can ensure a stable fixing effect.

[0024] Preferably, the inner diameter of the top opening of the bottom sleeve 4 matches the maximum diameter of the movable sleeve 3 , and the inner diameter of the bottom opening of the bottom sleeve 4 is smaller than the maximum diameter of the movable sleeve 3 .

[0025] During specific use, when the gasket 5 is installed, the bottom of the gasket 5 will contact the inner wall of the bottom of the bottom sleeve 4, so that the gasket 5 will not fall off inside the bottom sleeve 4.

[0026] Preferably, the slide groove 8 is provided on the inner wall of the bottom sleeve 4 , and two slide grooves 8 are symmetrically provided inside the bottom sleeve 4 . The outer wall of one side of the side block 7 is an arc-shaped structure, and the arc-shaped outer wall of the side block 7 is adapted to the curvature of the outer wall of the movable sleeve 3 .

[0027] When in use, the movable sleeve 3 moves and simultaneously drives the side blocks 7 on both sides to move. The side blocks 7 move along the opening track of the slide slot 8, so that the moving track of the movable sleeve 3 can be kept stable.

[0028] Working principle: When installing the printed circuit board 1 in the corresponding place, align the four bottom sleeves 4 at the bottom of the printed circuit board 1 with a mounting hole respectively, and then pass the bolts used for fixing through the corresponding fixing holes 2, the movable sleeves 3 and the bottom sleeves 4 are connected to the mounting holes, and tighten the bolts. During the tightening process of the bolts, the printed circuit board 1 will gradually be squeezed downward, so that the printed circuit board 1 will drive the movable sleeve 3 to move downward, and the movable sleeve 3 will squeeze the force-bearing column 6 downward when it moves downward. At this time, the force-bearing column 6 and the washer 5 will be deformed under the extrusion of the movable sleeve 3, thereby matching the downward movement depth of the movable sleeve 3 in real time according to needs, and each bolt can have a good extrusion and fixing effect after installation, thereby ensuring the overall firmness of the printed circuit board 1 after installation.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. 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 printed circuit board, comprising a printed circuit board (1), wherein each of the four corners of the printed circuit board (1) is provided with a fixing hole (2), wherein: The open end of each fixing hole (2) on the back side of the printed circuit board (1) is connected to a movable sleeve (3); The bottom of the movable sleeve (3) is movably mounted inside the bottom sleeve (4), a deformation mechanism is mounted inside the bottom sleeve (4), a side block (7) is fixedly mounted on both sides of the bottom sleeve (4), and the other side of the side block (7) is movably mounted inside the slide groove (8).

2. A printed circuit board according to claim 1, characterized in that: The deformation mechanism comprises a washer (5) and a force-bearing column (6), the bottom of the washer (5) is placed on the inner wall of the longitudinal end of the bottom sleeve (4), and a group of force-bearing columns (6) are installed at equal intervals on the outer wall of the upper surface of the washer (5).

3. A printed circuit board according to claim 2, characterized in that: The top of the force-bearing column (6) is in movably contact with the outer wall of the bottom of the movable sleeve (3); the force-bearing column (6) and the side block (7) are both made of deformable hard rubber.

4. A printed circuit board according to claim 1, characterized in that: The inner diameter of the top opening of the bottom sleeve (4) is compatible with the maximum diameter of the movable sleeve (3), and the inner diameter of the bottom opening of the bottom sleeve (4) is smaller than the maximum diameter of the movable sleeve (3).

5. A printed circuit board according to claim 1, characterized in that: The slide groove (8) is formed on the inner wall of the bottom sleeve (4), and two slide grooves (8) are symmetrically formed inside the bottom sleeve (4).

6. A printed circuit board according to claim 1, characterized in that: One side outer wall of the side block (7) is an arc-shaped structure, and the arc-shaped outer wall of the side block (7) is adapted to the curvature of the outer wall of the movable sleeve (3).

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