Single-layer impedance flexible printed circuit board

Abstract

The utility model provides a single-layer impedance flexible printed circuit board, and belongs to the technical field of circuit boards. The single-layer impedance flexible printed circuit board comprises a plug which is installed on the right side of a circuit board body, the upper end of a conductive strip is provided with a limiting block which is installed on the circuit board body, and the inner side of the plug is provided with a groove-shaped structure which is matched with the conductive strip; and the over-bending prevention assembly is mounted on the outer side of the circuit board body. An inner clamping block is mounted at the rear end of a first outer clamping block through a bolt, so that the inner clamping block is matched with the first outer clamping block, another inner clamping block is matched with a second outer clamping block to clamp the outer surface of the circuit board body, and a bent part of the circuit board body can be supported in cooperation with a supporting rod, so that the phenomenon of excessive bending of the circuit board body is avoided; and the mounting strips are inserted into the inner clamping blocks in a penetrating manner, so that the distance between the inner clamping block monomers can be adjusted to adapt to mounting of circuit board bodies with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a single-layer impedance flexible printed circuit board. Background Art

[0002] Flexible printed circuit boards are also called flexible printed circuit boards. With the trend of thinner and lighter electronic products, single-layer impedance flexible printed circuit boards have the characteristics of small size, light weight, and bendability. This bendability allows the circuit board to connect circuits that are placed close together. However, its bending characteristics can also cause excessive bending of the circuit board. It is best to implement over-bending protection at locations where it is bent for a long time or may be crushed. Therefore, the present application provides a single-layer impedance flexible printed circuit board. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a single-layer impedance flexible printed circuit board with over-bending protection.

[0004] The technical solution of the utility model is achieved in this way:

[0005] Single layer impedance flexible printed circuit board, comprising:

[0006] A plug is installed on the right side of the circuit board body, and a conductive strip fixed to the right end of the circuit board body is arranged on the inner side of the plug, a limit block installed on the circuit board body is arranged on the upper end of the conductive strip, and a groove structure matching the conductive strip is opened on the inner side of the plug;

[0007] The over-bending prevention component is installed on the outer side of the circuit board body.

[0008] Further, the over-bending prevention assembly includes a first outer clamping block, the rear end bolt of the first outer clamping block is installed with an inner clamping block, and a detachable positioning mechanism is installed on the inner side of the inner clamping block, and a mounting strip is arranged on the inner side of the detachable positioning mechanism, a positioning block is installed on the rear end of the inner clamping block, and a support rod is fixed to the inner end of the positioning block, and the positioning block is arranged symmetrically front and back about the center of the support rod;

[0009] The second outer clamping block is arranged on the rear side of the circuit board body, and another inner clamping block monomer is installed on the front side of the second outer clamping block.

[0010] Furthermore, a mounting groove is provided on the inner side of the inner clamp block for inserting the mounting strip, and the cross section of the mounting groove is "L"-shaped and is opened at the inner end of the inner clamp block.

[0011] Furthermore, a trapezoidal structure is provided on the outer side of the installation bar for positioning, and the length and width of the installation bar are both larger than the length and width of the inner end opening of the inner clamping block.

[0012] Furthermore, the outer end of the positioning block is provided with a protrusion structure corresponding to the installation groove, and the protrusion structure is snap-fitted with the installation groove, and the cross-section of the positioning block is "C"-shaped and fits with the outer surface of the inner clamping block.

[0013] Furthermore, the inner clamping block, the first outer clamping block and the second outer clamping block are all provided with rubber pads on their surfaces facing the circuit board body.

[0014] Furthermore, the detachable positioning mechanism includes a limiting strip, a limiting groove is provided on the inner side of the limiting strip, and a mounting block fixed in the inner clamping block is installed on the inner side of the limiting groove.

[0015] Furthermore, the cross section of the mounting block is T-shaped, and the inner side of the limiting groove is provided with a plurality of groove structures that engage with the protruding structures on the outer side of the mounting block.

[0016] Furthermore, the outer side of the conductive strip is inclined to increase the contact area with the plug.

[0017] The utility model has the following beneficial effects:

[0018] 1. An inner clamp block is installed through the rear end bolt of the first outer clamp block, so that the inner clamp block cooperates with the first outer clamp block, and the other inner clamp block cooperates with the second outer clamp block to clamp the outer surface of the circuit board body, and then cooperates with the support rod to support the bent part of the circuit board body to avoid excessive bending. The installation strip is inserted into the inner clamp block, so that the spacing between the inner clamp block monomers can be adjusted to adapt to the installation of circuit board bodies of different sizes.

[0019] 2. By setting the conductive strip and the plug for docking, the plug can be plugged in and out less frequently, avoiding significant wear on the plug's plating. The conductive strip can be used for docking, which facilitates the overall replacement of the circuit board body without replacing the plug, reducing replacement costs and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the single-layer impedance flexible printed circuit board of the utility model;

[0021] Figure 2 It is a front exploded schematic diagram of the connection between the plug and the conductive strip of the single-layer impedance flexible printed circuit board of the utility model;

[0022] Figure 3 It is a schematic diagram of the front exploded structure of the anti-overbending component of the single-layer impedance flexible printed circuit board of the utility model;

[0023] Figure 4It is a cross-sectional schematic diagram of the connection between the detachable positioning mechanism and the inner clamping block of the single-layer impedance flexible printed circuit board of the utility model;

[0024] Figure 5 The utility model is a single-layer impedance flexible printed circuit board Figure 4 Enlarged view of point A in . DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0026] See also Figures 1 to 5 As shown, the single-layer impedance flexible printed circuit board provided by the utility model includes a plug 2, which is installed on the right side of the circuit board body 1, and the inner side of the plug 2 is provided with a conductive strip 8 fixed to the right end of the circuit board body 1, so that the plug 2 can be disassembled from the conductive strip 8, reducing the number of plugging and unplugging of the plug 2 and keeping the circuit unobstructed, and the upper end of the conductive strip 8 is provided with a limit block 3 installed on the circuit board body 1, which can limit the insertion size of the plug 2 to avoid excessive insertion or accidental detachment, and the inner side of the plug 2 is provided with a groove structure that matches the conductive strip 8, ensuring that the inner surface of the plug 2 and the conductive strip 8 form a fitting arrangement, and further increasing the connection stability with the conductive strip 8;

[0027] The over-bending prevention component is installed on the outer side of the circuit board body 1 and can protect the bent portion of the circuit board body 1 .

[0028] The over-bending prevention assembly includes a first outer clamping block 6, the rear end bolt of the first outer clamping block 6 is installed with an inner clamping block 4, the inner clamping block 4 and the first outer clamping block 6 as well as the inner clamping block 4 and the second outer clamping block 13 are installed on the outer surface of the circuit board body 1, and the first outer clamping block 6 is positioned and installed by using the foot seat installed on the outer side of the first outer clamping block 6, and a detachable positioning mechanism is installed on the inner side of the inner clamping block 4, and a mounting strip 5 is arranged on the inner side of the detachable positioning mechanism, which can position the inner clamping block 4 to avoid random displacement between the inner clamping blocks 4 on the upper and lower sides, and can further increase the reinforcement capacity of the outer surface of the circuit board body 1, a positioning block 12 is installed at the rear end of the inner clamping block 4, and a support rod 7 is fixed to the inner end of the positioning block 12, and the positioning block 12 is symmetrically arranged front and back about the center of the support rod 7, which can fix the distance between the upper and lower surfaces of the circuit board body 1, thereby avoiding excessive bending caused by pressure and causing the circuit board body 1 to break;

[0029] The second outer clamping block 13 is disposed at the rear side of the circuit board body 1 , and another inner clamping block 4 is installed at the front side of the second outer clamping block 13 to clamp the other side of the circuit board body 1 .

[0030] An installation groove 9 is also provided on the inner side of the inner clamp block 4 for inserting the installation strip 5, and the cross section of the installation groove 9 is "L"-shaped, and is opened at the inner end of the inner clamp block 4, which is convenient for inserting the installation strip 5 and also convenient for disassembling the limit strip 10 from the opening.

[0031] A trapezoidal structure is provided on the outer side of the mounting strip 5 for positioning, which can cooperate with the limiting strip 10 to fix the position of the inner clamp block 4, and the length and width of the mounting strip 5 are both larger than the length and width of the inner end opening of the inner clamp block 4, which can prevent the mounting strip 5 from detaching from the inner opening of the inner clamp block 4.

[0032] The outer end of the positioning block 12 is provided with a protruding structure corresponding to the mounting groove 9, and the protruding structure is snap-fitted with the mounting groove 9. The cross-section of the positioning block 12 is "C"-shaped and fits with the outer surface of the inner clamping block 4, which can enhance the fixing ability of the positioning block 12 and the inner clamping block 4.

[0033] The inner clamp block 4, the first outer clamp block 6 and the second outer clamp block 13 are also equipped with rubber pads 11 on the surfaces facing the circuit board body 1. During the clamping process, the rubber pads 11 can be used to provide a certain buffer for the outer surface of the circuit board body 1 to avoid damage to the outer surface of the circuit board body 1 caused by clamping.

[0034] The detachable positioning mechanism comprises a limit strip 10 , the inner side of which is provided with a limit slot 15 , and the inner side of the limit slot 15 is provided with a mounting block 14 fixed in the inner clamping block 4 , so that the limit strip 10 can be replaced conveniently.

[0035] The cross-section of the mounting block 14 is T-shaped, and the inner side of the limiting groove 15 is provided with a plurality of groove structures that engage with the protruding structures on the outer side of the mounting block 14, so as to adjust the gap between the limiting strip 10 and the inner clamping block 4, thereby reducing the spacing between the limiting strip 10 and the mounting strip 5, thereby further increasing the positioning effect between the limiting strip 10 and the mounting strip 5.

[0036] The outer side of the conductive strip 8 is inclined to increase the contact area with the plug 2 .

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-layer impedance flexible printed circuit board, characterized in that: include: A plug (2) is mounted on the right side of the circuit board body (1), and a conductive strip (8) fixed to the right end of the circuit board body (1) is arranged on the inner side of the plug (2), a limit block (3) mounted on the circuit board body (1) is arranged on the upper end of the conductive strip (8), and a groove structure matching the conductive strip (8) is provided on the inner side of the plug (2); An anti-overbending component is installed on the outside of the circuit board body (1).

2. The single-layer impedance flexible printed circuit board according to claim 1, characterized in that: The anti-overbending assembly comprises a first outer clamping block (6), the rear end bolt of the first outer clamping block (6) is bolted with an inner clamping block (4), and a detachable positioning mechanism is installed on the inner side of the inner clamping block (4), and a mounting strip (5) is arranged on the inner side of the detachable positioning mechanism, and a positioning block (12) is installed on the rear end of the inner clamping block (4), and a support rod (7) is fixed to the inner end of the positioning block (12), and the positioning block (12) is arranged symmetrically with respect to the center of the support rod (7); The second outer clamping block (13) is arranged on the rear side of the circuit board body (1), and another inner clamping block (4) is installed on the front side of the second outer clamping block (13).

3. The single-layer impedance flexible printed circuit board according to claim 2, characterized in that: The inner side of the inner clamp block (4) is also provided with a mounting groove (9) for inserting the mounting strip (5), and the cross section of the mounting groove (9) is L-shaped and is opened at the inner end of the inner clamp block (4).

4. The single-layer impedance flexible printed circuit board according to claim 3, characterized in that: The outer side of the installation strip (5) is provided with a trapezoidal structure for positioning, and the length and width of the installation strip (5) are both greater than the length and width of the inner end opening of the inner clamping block (4).

5. The single-layer impedance flexible printed circuit board according to claim 2, characterized in that: The outer end of the positioning block (12) is provided with a protruding structure corresponding to the mounting groove (9), and the protruding structure is snap-fitted with the mounting groove (9). The cross section of the positioning block (12) is C-shaped and fits with the outer surface of the inner clamping block (4).

6. The single-layer impedance flexible printed circuit board according to claim 2, characterized in that: The inner clamping block (4), the first outer clamping block (6) and the second outer clamping block (13) are all provided with rubber pads (11) on the surfaces facing the circuit board body (1).

7. The single-layer impedance flexible printed circuit board according to claim 3, characterized in that: The detachable positioning mechanism comprises a limiting strip (10), the inner side of which is provided with a limiting groove (15), and the inner side of the limiting groove (15) is provided with a mounting block (14) fixed in the inner clamping block (4).

8. The single-layer impedance flexible printed circuit board according to claim 7, characterized in that: The cross section of the mounting block (14) is T-shaped, and the inner side of the limiting groove (15) is provided with a plurality of groove structures that engage with the outer protruding structures of the mounting block (14).

9. The single-layer impedance flexible printed circuit board according to claim 1, characterized in that: The outer side of the conductive strip (8) is arranged to be inclined, so as to increase the contact area with the plug (2).

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