Foldable circuit board

Abstract

The utility model provides a foldable circuit board, which relates to the field of circuit boards and comprises three circuit boards, a first auxiliary box, a second auxiliary box and a third auxiliary box are sequentially fixed at the bottoms of the three circuit boards, and opposite clamping grooves are arranged on the first auxiliary box and the third auxiliary box. Opposite clamping blocks are fixed to the top and the bottom of the second auxiliary box, first rotating blocks and second rotating blocks are sequentially fixed to the opposite side faces of the first auxiliary box, the second auxiliary box and the third auxiliary box, and the first rotating blocks and the second rotating blocks rotate through rotating shafts; according to the foldable circuit board provided by the utility model, large-scale circuit boards can be folded, the space utilization rate is increased, and the foldable circuit board is convenient to use and transport.

Description

Technical Field

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

[0002] Some circuit boards are mostly PCB circuit boards. Although they are easy to manufacture, they cannot be folded due to their integrated board structure and high hardness. They occupy a large area and are not convenient for transportation and flexible installation. Although FPC circuit boards with higher flexibility have appeared, the folding range and number of times of such circuit boards are still limited. After repeated folding, the board may break, resulting in the problem that the attached circuit cannot work properly.

[0003] The existing publication number CN211860760U discloses a foldable circuit board, including an auxiliary shell and a circuit board body, the auxiliary shell is rotatably connected to the circuit board body, the auxiliary shell includes a main shell, and the left and right ends of the main shell surface are rotatably connected with side shells. By designing the circuit board body as multiple auxiliary shells that can be folded and closed to be flat, the circuit board reduces its own area and reduces the possibility of breakage. The auxiliary shell can provide protection during transportation without the need for a special protective box, greatly reducing the occupied space and increasing the transportation volume. It is also convenient to use and very practical. The circuit board body is connected to the auxiliary shell by a heat dissipation block and a heat dissipation spring, so that the heat generated by the circuit board body during operation can be quickly dissipated outward through the auxiliary shell with a large extension area and heat dissipation holes, greatly improving the heat dissipation speed of the circuit board body and ensuring its service life and effective operation of the machine.

[0004] It has been found that the above device still has some shortcomings. First, when the above device folds the circuit board, it can only fold a small number of circuit boards. If a large number of circuit boards are folded, the occupied space will increase, which is inconvenient to use and transport.

[0005] Therefore, it is necessary to provide a new foldable circuit board to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a foldable circuit board.

[0007] The foldable circuit board provided by the utility model comprises: three circuit boards, a first auxiliary box, a second auxiliary box and a third auxiliary box are fixed to the bottom of the three circuit boards in sequence, the first auxiliary box and the third auxiliary box are provided with relative card slots, the top and the bottom of the second auxiliary box are fixed with relative card blocks, the first auxiliary box, the second auxiliary box and the third auxiliary box are fixed with relative side surfaces in sequence, and the first rotating block and the second rotating block rotate through a rotating shaft.

[0008] Preferably, the first auxiliary box, the second auxiliary box and the third auxiliary box are all provided with grooves for fixing the circuit board, and the first auxiliary box, the second auxiliary box and the third auxiliary box are sequentially connected by a hose.

[0009] Preferably, a plurality of conductors are provided on the circuit board.

[0010] Preferably, the inner side walls of the grooves are provided with a plurality of through holes for connecting a plurality of wires, and the number of the card slots corresponds to the number of card blocks.

[0011] Preferably, both ends of the hose are fixed in the through hole, and the wires in the first auxiliary box, the second auxiliary box and the third auxiliary box pass through the hose.

[0012] Preferably, evenly distributed heat dissipation holes are formed at the bottom of the first auxiliary box, the second auxiliary box and the third auxiliary box.

[0013] Compared with the related art, the foldable circuit board provided by the utility model has the following beneficial effects:

[0014] A first rotating block and a second rotating block are relatively distributed between the first auxiliary box, the second auxiliary box and the third auxiliary box, and the first rotating block and the second rotating block are rotated by the rotating shaft. Circuit boards are fixed in the first auxiliary box, the second auxiliary box and the third auxiliary box. When the circuit boards need to be folded, it is only necessary to pull the first auxiliary box, the second auxiliary box and the third auxiliary box to drive the rotating shaft to rotate. The first auxiliary box and the third auxiliary box are provided with card slots, and the second auxiliary box is provided with card blocks. The number of card slots corresponds to that of card blocks. When folded, the card slots correspond to the buckle positions. The established card slots and buckles can prevent misalignment between the auxiliary boxes, and the first auxiliary box, the second auxiliary box and the third auxiliary box connected in sequence save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a foldable circuit board provided by the utility model;

[0016] Figure 2 A schematic diagram of the main structure of a foldable circuit board provided by the utility model;

[0017] Figure 3 A schematic diagram of the rear structure of the foldable circuit board provided by the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of A;

[0019] Figure 5 A schematic diagram of the cross-sectional structure of a foldable circuit board provided by the utility model;

[0020] Figure 6This is a schematic diagram of the structure of the foldable circuit board provided by the utility model in the storage state.

[0021] Numbers in the figure: 1, first auxiliary box; 11, groove; 111, circuit board; 1111, wire; 12, slot; 13, through hole; 14, hose; 2, second auxiliary box; 21, block; 3, third auxiliary box; 4, first rotating block; 41, second rotating block; 42, shaft; 43, hose; 5, heat dissipation hole. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figures 1 to 6 ,in, Figure 1 A schematic diagram of the overall structure of a foldable circuit board provided by the utility model; Figure 2 A schematic diagram of the main structure of a foldable circuit board provided by the utility model; Figure 3 A schematic diagram of the rear structure of the foldable circuit board provided by the utility model; Figure 4 It is a schematic diagram of the enlarged structure of A; Figure 5 A schematic diagram of the cross-sectional structure of a foldable circuit board provided by the utility model; Figure 6 This is a schematic diagram of the structure of the foldable circuit board provided by the utility model in the storage state.

[0024] In the specific implementation process, Figures 1 to 6 As shown, it includes three circuit boards 111, and the bottom of the three circuit boards 111 is fixed with the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 in sequence, and the first auxiliary box 1 and the third auxiliary box 3 are provided with relative card slots 12, and the top and bottom of the second auxiliary box 2 are fixed with relative card blocks 21. When stored, the position of the card block 21 corresponds to the position of the card slot 12, and the first rotating block 4 and the second rotating block 41 are fixed to the opposite sides of the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 in sequence, and the first rotating block 4 and the second rotating block 41 rotate through the rotating shaft 42. Preferably, the rotating shaft 42 is provided with a bearing, and the first rotating block 4 and the second rotating block 41 rotate through the bearing.

[0025] refer to Figures 1 to 5As shown, evenly distributed heat dissipation holes 5 are provided at the bottom of the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3. The establishment of the heat dissipation holes 5 can increase the heat dissipation effect of the circuit board 111. The first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 are all provided with a groove 11 for fixing the circuit board 111. The circuit board 111 is provided with a plurality of wires 1111. The inner side wall of the groove 11 is provided with a plurality of through holes 13 for connecting the plurality of wires 1111. The number of the card slots 12 corresponds to the number of the card blocks 21. Both ends of the hose 43 are fixed in the through holes 13. The wires 1111 in the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 pass through the hose 43. The preferred hose 43 is a metal hose. The top and bottom of the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 are all provided with grooves 11. The grooves 11 can be used to place the circuit board 111. The grooves 111 set at the top and the bottom can make full use of the space of the auxiliary box.

[0026] refer to Figure 6 As shown, the first auxiliary box 1 , the second auxiliary box 2 , and the third auxiliary box 3 are sequentially connected via a hose 43 . The hose 43 can be bent and also protects the wire 1111 .

[0027] The working principle of the utility model is as follows: when the circuit board 111 needs to be folded, only the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 need to be pulled to drive the rotating shaft 42 to rotate. The circuit board 111 is fixed in the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3. The first rotating block 4 and the second rotating block 41 are relatively distributed and sequentially set up between the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3. The first rotating block 4 and the second rotating block 41 rotate through the rotating shaft 42. Under the action of the rotation, the first auxiliary box 1, the second auxiliary box 2 The first auxiliary box 1 and the third auxiliary box 3 are close to each other, and corresponding card slots 12 are provided on the first auxiliary box 1 and the third auxiliary box 3, and a card block 21 is provided on the second auxiliary box 2, and the number of the card slots 12 corresponds to the number of the card blocks 21. When folded, the positions of the card slots 12 and the card blocks 21 correspond. The established card slots 12 and the card blocks 21 can prevent the auxiliary boxes from being misaligned, and the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 connected in sequence save space. When the temperature inside the first auxiliary box 1, the second auxiliary box 2, and the third auxiliary box 3 is high, the internal heat can be dissipated through the heat dissipation holes 5.

[0028] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A foldable circuit board, characterized in that: The invention comprises three circuit boards (111), wherein a first auxiliary box (1), a second auxiliary box (2) and a third auxiliary box (3) are fixed to the bottom of the three circuit boards (111) in sequence, wherein the first auxiliary box (1) and the third auxiliary box (3) are both provided with opposite card slots (12), wherein the top and the bottom of the second auxiliary box (2) are fixed with opposite card blocks (21), wherein the opposite sides of the first auxiliary box (1), the second auxiliary box (2) and the third auxiliary box (3) are respectively fixed with a first rotating block (4) and a second rotating block (41), wherein the first rotating block (4) and the second rotating block (41) rotate via a rotating shaft (42).

2. The foldable circuit board according to claim 1, characterized in that: The first auxiliary box (1), the second auxiliary box (2) and the third auxiliary box (3) are all provided with a groove (11) for fixing the circuit board (111), and the first auxiliary box (1), the second auxiliary box (2) and the third auxiliary box (3) are connected in sequence via a hose (43).

3. The foldable circuit board according to claim 1, characterized in that: A plurality of conducting wires (1111) are arranged on the circuit board (111).

4. The foldable circuit board according to claim 2, characterized in that: The inner side wall of the groove (11) is provided with a plurality of through holes (13) for connecting a plurality of wires (1111), and the number of the card slots (12) corresponds to the number of the card blocks (21).

5. The foldable circuit board according to claim 2, characterized in that: Both ends of the hose (43) are fixed in the through hole (13), and the wires (1111) in the first auxiliary box (1), the second auxiliary box (2), and the third auxiliary box (3) pass through the hose (43).

6. The foldable circuit board according to claim 1, characterized in that: The bottoms of the first auxiliary box (1), the second auxiliary box (2) and the third auxiliary box (3) are provided with evenly distributed heat dissipation holes (5).

Images