A multilayer flexible circuit board

Abstract

The utility model discloses a multi-layer flexible circuit board, and relates to the technical field of flexible circuit boards. The multi-layer flexible circuit board comprises a multi-layer flexible circuit board and two concave fixed plates, the upper and lower surfaces of the two concave fixed plates are provided with two front and rear corresponding slide grooves, a protective device, and a concave fixed plate on the protective device. The protective device comprises two guide rods, the two guide rods are respectively fixedly connected to the inside of the front and rear corresponding slide grooves, the outer walls of the two guide rods are slidably sleeved with sliders, and the two sliders are respectively slidably connected to the inner walls of the front and rear corresponding slide grooves. By setting four protective devices, it can play a full range of protection and buffering effects when the multi-layer flexible circuit board falls, thereby reducing the occurrence of edge breakage caused by the multi-layer flexible circuit board falling from a high place, improving the anti-fall performance of the multi-layer flexible circuit board, and extending the service life of the multi-layer flexible circuit board.

Description

Technical Field

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

[0002] Flexible circuit board is also called flexible printed circuit board, or soft printed circuit board.

[0003] Multilayer flexible circuit boards are widely used and play a very important role. However, the existing multilayer flexible circuit boards as a whole cannot provide good protection for each layer of circuit boards. When the multilayer flexible circuit boards accidentally fall, they cannot provide good buffering protection, which can easily cause the circuit boards between the multilayer flexible circuit boards to separate. In addition, the circuit boards can easily be damaged if they accidentally fall, which can easily cause unnecessary economic damage and shorten the service life of the circuit boards. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a multi-layer flexible circuit board, which can solve the problem that the existing multi-layer flexible circuit board as a whole cannot provide good protection for each layer of circuit boards, cannot provide good buffering protection when the multi-layer flexible circuit board accidentally falls, and easily causes the circuit boards between the multi-layer flexible circuit boards to separate, and the circuit boards are easily damaged when they are accidentally dropped.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer flexible circuit board, comprising a multi-layer flexible circuit board and two concave fixing plates, the upper and lower surfaces of the two concave fixing plates are provided with two front and rear corresponding sliding grooves, a protective device, and the protective device is disposed on the concave fixing plates;

[0008] The protection device includes two guide rods, which are respectively fixedly connected to the inside of the front and rear corresponding slide grooves;

[0009] The outer walls of the two guide rods are slidably sleeved with sliders, the two sliders are slidably connected to the inner walls of the front and rear corresponding slide grooves, and the opposite surfaces of the two sliders are fixedly connected to the second spring;

[0010] The two second springs are respectively slidably sleeved on the outer walls of the outer walls of the front and rear corresponding guide rods, and the two second springs are respectively fixedly connected to the front and rear corresponding sliding grooves.

[0011] Preferably, the protective device also includes two first concave blocks, which are respectively fixedly connected to the upper surfaces of the front and rear corresponding sliding blocks, and the concave parts of the two first concave blocks are both plugged with connecting plates, and are both rotatably connected through the first fixing pins.

[0012] Preferably, the protective device further comprises a first spring, the first spring is fixedly connected to the upper surface of the concave fixing plate, a damper is arranged inside the first spring, and the protective plate is fixedly connected to the upper surface of the first spring and the damper.

[0013] Preferably, the protective device further comprises two second concave blocks, and the two second concave blocks are both fixedly connected to the lower surface of the protective plate;

[0014] Wherein, the ends of the two connecting plates away from the first concave block are respectively inserted in a slanting manner into the concave parts of the corresponding second concave blocks, and are both rotatably connected through the second fixing pin;

[0015] There are four protective devices, the structures of which are completely the same, and the four protective devices are arranged on the upper and lower surfaces of the two concave fixing plates.

[0016] Preferably, the opposite surfaces of the two concave fixing plates are each provided with a heat dissipation groove communicating with the concave portion thereof, and a plurality of heat sinks are fixedly connected to the interior of the two heat dissipation grooves.

[0017] Preferably, four restraining cloths are fixedly connected to the opposite surfaces of the two concave fixing plates, and a plurality of rectangular grooves are formed on the four restraining cloths.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The multi-layer flexible circuit board, by providing four protective devices, can provide all-round protection and buffering for the multi-layer flexible circuit board when it falls, thereby reducing the edge breakage caused by the multi-layer flexible circuit board falling from a high place, improving the drop resistance of the multi-layer flexible circuit board, and extending the service life of the multi-layer flexible circuit board.

[0021] (2) The multi-layer flexible circuit board, by arranging a guide rod inside the slide groove, can not only help the slider to move more smoothly in the slide groove, but also prevent the slider from being separated from the slide groove due to a strong impact after the multi-layer flexible circuit board falls, thereby improving the stability of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the upper surface of the concave fixing plate of the utility model;

[0025] Figure 3 It is the internal schematic diagram of the slideway of the utility model.

[0026] Figure numerals: 1. multilayer flexible circuit board; 2. binding cloth; 3. rectangular groove; 4. protective plate; 5. first spring; 6. heat sink; 7. heat sink; 8. concave fixing plate; 9. first concave block; 10. guide rod; 11. slide groove; 12. second spring; 13. connecting plate; 14. second concave block; 15. slider. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 present invention.

[0029] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] See also Figure 1-3 The utility model provides a technical solution: a multi-layer flexible circuit board, comprising a multi-layer flexible circuit board 1 and two concave fixing plates 8, the upper and lower surfaces of the two concave fixing plates 8 are provided with two front and rear corresponding slide grooves 11, and a protective device, and the protective device is on the concave fixing plates 8;

[0032] The protection device includes two guide rods 10, and the two guide rods 10 are respectively fixedly connected to the inside of the corresponding front and rear slide grooves 11;

[0033] The outer walls of the two guide rods 10 are slidably sleeved with sliders 15, and the two sliders 15 are slidably connected to the inner walls of the front and rear corresponding slide grooves 11, and the opposite surfaces of the two sliders 15 are fixedly connected with the second spring 12;

[0034] The two second springs 12 are respectively slidably sleeved on the outer walls of the outer walls of the front and rear corresponding guide rods 10 , and the two second springs 12 are respectively fixedly connected to the front and rear corresponding sliding grooves 11 .

[0035] Furthermore, the protective device also includes two first concave blocks 9, which are respectively fixedly connected to the upper surfaces of the front and rear corresponding sliders 15, and the concave parts of the two first concave blocks 9 are both plugged with connecting plates 13, and are both rotatably connected through a first fixing pin.

[0036] Furthermore, the protective device also includes a first spring 5, which is fixedly connected to the upper surface of the concave fixing plate 8, a damper is arranged inside the first spring 5, and the protective plate 4 is fixedly connected to the upper surface of the first spring 5 and the damper.

[0037] Furthermore, the protective device further comprises two second concave blocks 14, and the two second concave blocks 14 are both fixedly connected to the lower surface of the protective plate 4;

[0038] The ends of the two connecting plates 13 away from the first concave block 9 are respectively inserted into the concave parts of the corresponding second concave blocks 14 in an inclined manner, and are both rotatably connected through the second fixing pin;

[0039] There are four protective devices, the structures of which are completely the same, and the four protective devices are arranged on the upper and lower surfaces of the two concave fixing plates 8 .

[0040] Furthermore, the two concave fixing plates 8 are provided with heat dissipation grooves 7 communicating with the concave portions thereof on the opposite sides thereof, and a plurality of heat dissipation fins 6 are fixedly connected to the interiors of the two heat dissipation grooves 7 .

[0041] Furthermore, four restraining cloths 2 are fixedly connected to the opposite surfaces of the two concave fixing plates 8 , and a plurality of rectangular grooves 3 are formed on the four restraining cloths 2 .

[0042] Furthermore, when using the multi-layer flexible circuit board, the staff first holds two concave fixing plates 8 in their hands, and then moves the two concave fixing plates 8 to opposite positions. At this time, the four restraining cloths 2 are stretched, and then another staff member clamps the left and right sides of the multi-layer flexible circuit board 1 into the concave parts of the two concave fixing plates 8, and then slowly loosens the two concave fixing plates 8. Under the elastic action of the four restraining cloths 2, the two concave fixing plates 8 will fit tightly with the left and right sides of the multi-layer flexible circuit board 1, thereby fixing the multi-layer flexible circuit board 1, so that the layers have a better fitting and fixing effect.

[0043] Furthermore, when the multi-layer flexible circuit board falls, the two protective plates 4 located on the lower side will first touch the ground. When the two protective plates 4 located on the lower side touch the ground, the first spring 5 and the damper will buffer the force received by the middle of the protective plates 4. At the same time, the two protective plates 4 will pass through the two second concave blocks 14. The two second concave blocks 14 will push the two sliders 15 to slide to opposite positions through the connecting plate 13 and the first concave block 9, and compress the two second springs 12. The two second springs 12 buffer the force received by both sides of the protective plates 4, thereby reducing the multi-layer flexible circuit board 1 from falling from a high place. In the event of edge breakage, four protective devices are provided to provide all-round protection and buffering for the multi-layer flexible circuit board 1 when it falls, thereby reducing the edge breakage caused by the multi-layer flexible circuit board 1 falling from a height, improving the drop resistance of the multi-layer flexible circuit board, and extending the service life of the multi-layer flexible circuit board. By providing a guide rod 10 inside the slide groove 11, it can not only help the slider 15 to move more smoothly in the slide groove 11, but also prevent the slider 15 from detaching from the inside of the slide groove 11 due to a strong impact after the multi-layer flexible circuit board 1 falls, thereby improving the stability of the slider 15.

[0044] Working principle: When using a multi-layer flexible circuit board, the staff first holds two concave fixing plates 8 in their hands, and then moves the two concave fixing plates 8 to opposite positions. At this time, the four restraining cloths 2 are stretched, and then another staff member clamps the left and right sides of the multi-layer flexible circuit board 1 into the concave parts of the two concave fixing plates 8, and then slowly loosens the two concave fixing plates 8. Under the elastic action of the four restraining cloths 2, the two concave fixing plates 8 will fit tightly with the left and right sides of the multi-layer flexible circuit board 1, which plays a role in fixing the multi-layer flexible circuit board 1, so that the layers have a better fitting and fixing effect.

[0045] Furthermore, when the multi-layer flexible circuit board falls, the two protective plates 4 on the lower side will first touch the ground. When the two protective plates 4 on the lower side touch the ground, the first spring 5 and the damper will buffer the force applied to the middle of the protective plates 4. At the same time, the two protective plates 4 will pass through the two second concave blocks 14. The two second concave blocks 14 will push the two sliders 15 to slide to opposite positions through the connecting plate 13 and the first concave block 9, and compress the two second springs 12. The two second springs 12 will buffer the force applied to both sides of the protective plates 4, thereby reducing the occurrence of edge breakage caused by the multi-layer flexible circuit board 1 falling from a height.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multilayer flexible circuit board, characterized in that: include: A multilayer flexible circuit board (1) and two concave fixing plates (8), wherein the upper and lower surfaces of the two concave fixing plates (8) are provided with two sliding grooves (11) arranged correspondingly in the front and rear; A protective device, the protective device is mounted on a concave fixing plate (8); The protection device comprises two guide rods (10), and the two guide rods (10) are respectively fixedly connected to the inside of the front and rear corresponding slide grooves (11); The outer walls of the two guide rods (10) are slidably sleeved with sliders (15), the two sliders (15) are respectively slidably connected to the inner walls of the front and rear corresponding slide grooves (11), and the opposite surfaces of the two sliders (15) are fixedly connected to the second spring (12); The two second springs (12) are respectively slidably sleeved on the outer walls of the outer walls of the front and rear corresponding guide rods (10), and the two second springs (12) are respectively fixedly connected to the front and rear corresponding sliding grooves (11).

2. A multilayer flexible circuit board according to claim 1, characterized in that: The protective device also includes two first concave blocks (9), which are respectively fixedly connected to the upper surfaces of the front and rear corresponding sliders (15), and the concave parts of the two first concave blocks (9) are both plugged with connecting plates (13), and are both rotatably connected via a first fixing pin.

3. A multilayer flexible circuit board according to claim 1, characterized in that: The protective device also includes a first spring (5), the first spring (5) is fixedly connected to the upper surface of the concave fixing plate (8), a damper is arranged inside the first spring (5), and the protective plate (4) is fixedly connected to the upper surface of the first spring (5) and the damper.

4. A multilayer flexible circuit board according to claim 3, characterized in that: The protection device further comprises two second concave blocks (14), and the two second concave blocks (14) are both fixedly connected to the lower surface of the protection plate (4); The ends of the two connecting plates (13) away from the first concave block (9) are respectively inserted in a slanted manner into the concave parts of the corresponding second concave blocks (14), and are both rotatably connected via a second fixing pin; There are four protective devices, the structures of the four protective devices are completely the same, and the four protective devices are arranged on the upper and lower surfaces of the two concave fixing plates (8).

5. A multilayer flexible circuit board according to claim 1, characterized in that: The two concave fixing plates (8) are provided with heat dissipation grooves (7) communicating with the concave portions thereof on their opposite surfaces, and a plurality of heat dissipation fins (6) are fixedly connected inside the two heat dissipation grooves (7).

6. A multilayer flexible circuit board according to claim 1, characterized in that: Four restraining cloths (2) are fixedly connected to the opposite surfaces of the two concave fixing plates (8), and a plurality of rectangular grooves (3) are formed on the four restraining cloths (2).

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