Multilayer PCB circuit board

Abstract

The utility model provides a multilayer PCB circuit board, comprising an upper board body, a plurality of metal guide sheets arranged between the upper board body and a lower board body, a sound insulation cotton pad arranged at the bottom end of the upper board body, and limiting mechanisms arranged at the corners of the sound insulation cotton pad; the upper plate body and the lower plate body are supported through the metal guide pieces arranged on the side positions, the supporting strength is guaranteed, meanwhile, the heat dissipation performance is good, heat generated when the plate bodies work can be dissipated more quickly, meanwhile, a sound insulation cotton pad and a sound absorption pad are further arranged on one side of the plate bodies, and when the sound insulation cotton pad is installed, the sound absorption pad is installed on the side of the plate bodies. The sound insulation cotton cushion is installed through the limiting mechanism arranged at the side position, the limiting mechanism is pulled towards the outer side, the first supporting arm plate and the second supporting arm plate are hooked to the metal guide piece, then the locking bolt is rotated, the locking bolt is in threaded connection with the interior of the positioning hole, and therefore fixing of the limiting mechanism is achieved, installation of the sound insulation cotton cushion is completed, and installation is simple and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards and relates to a multi-layer PCB circuit board. Background Art

[0002] PCB multilayer refers to a multilayer circuit board used in electrical products. It covers a wide range of fields, including home appliances, computer peripherals, communications, optoelectronic equipment, instruments and meters, toys, aerospace, military industry, medical products, LED lighting and other industries. The existing PCB multilayer structure has many electronic components installed inside, which leads to excessive noise during use and needs to be improved. Summary of the invention

[0003] The purpose of the utility model is to provide a multi-layer PCB circuit board to solve the problems raised in the above background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A multi-layer PCB circuit board comprises an upper plate body, a lower plate body, a sound insulation cotton pad, a metal guide, a rubber support, a sound absorbing pad and a limiting mechanism, wherein the lower plate body is arranged at the bottom of the upper plate body, a plurality of metal guides are arranged between the upper plate body and the lower plate body, and the metal guides are arranged at the side positions of the upper plate body and the lower plate body, a sound insulation cotton pad is arranged at the bottom end of the upper plate body, and limiting mechanisms are arranged at the corners of the sound insulation cotton pad.

[0006] In the above-mentioned multi-layer PCB circuit board, the limiting mechanism is composed of support arm plate 1 and support arm plate 2, one end of the support arm plate 1 is fixedly connected to the support arm plate 2, and an inner cavity is formed between the support arm plate 1 and the support arm plate 2.

[0007] In the above-mentioned multi-layer PCB circuit board, positioning holes are opened at the top and top positions of the metal guide plate, the external threaded connection of the limiting mechanism is provided with a locking bolt, and one end of the locking bolt passes through the support arm plate and is threadedly connected to the inside of the positioning hole.

[0008] In the above-mentioned multi-layer PCB circuit board, a sound-absorbing pad is arranged inside the sound-insulating cotton pad, and a plurality of sound-absorbing holes are opened inside the sound-absorbing pad.

[0009] In the above-mentioned multi-layer PCB circuit board, a side groove is opened on the side of the sound insulation cotton pad, a support spring is arranged inside the side groove, and the support spring is fixedly connected to an inner sliding seat sliding inside the side groove, and one side of the inner sliding seat is fixedly connected to one end of a support arm plate.

[0010] In the above-mentioned multi-layer PCB circuit board, rubber supports are arranged at the side positions of the upper plate body and the side positions of the lower plate body, and a rubber support rod is arranged at one end of the rubber support.

[0011] Compared with the prior art, the advantages of the multi-layer PCB circuit board of the utility model are:

[0012] The upper plate body and the lower plate body provided in the present application are supported by metal guides provided at the side positions. While ensuring the supporting strength, the heat dissipation performance is good, and the heat generated by the plate body during operation can be dissipated faster. At the same time, the present application also provides sound insulation pads and sound-absorbing pads on one side of the plate body. When installing the sound insulation pads, they are installed through the limiting mechanism provided at the side positions. The limiting mechanism is pulled toward the outside to hook the support arm plate one and the support arm plate two onto the metal guide plates, and then the locking bolt is rotated. The locking bolt is threadedly connected to the inside of the positioning hole, thereby realizing the fixation of the limiting mechanism, and then completing the installation of the sound insulation pad. The installation is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a multi-layer PCB circuit board.

[0014] Figure 2 The utility model is a schematic diagram of the structure of a sound insulation cotton pad of a multi-layer PCB circuit board.

[0015] Figure 3 The utility model is a schematic diagram of an enlarged structure of a limiting mechanism of a multi-layer PCB circuit board.

[0016] In the figure, 1. upper plate body; 2. lower plate body; 3. sound insulation pad; 4. metal guide; 5. positioning hole; 6. rubber support; 7. rubber support rod; 8. sound absorbing pad; 9. limiting mechanism; 10. support arm plate 1; 11. inner cavity; 12. support arm plate 2; 13. locking bolt; 14. side groove; 15. inner slide seat; 16. support spring. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] A multi-layer PCB circuit board comprises an upper plate body 1, a lower plate body 2, a sound insulation cotton pad 3, a metal guide 4, a rubber support 6, a sound absorbing pad 8 and a limiting mechanism 9. The lower plate body 2 is arranged at the bottom of the upper plate body 1, a plurality of metal guides 4 are arranged between the upper plate body 1 and the lower plate body 2, and the metal guides 4 are arranged at the side positions of the upper plate body 1 and the lower plate body 2, a sound insulation cotton pad 3 is arranged at the bottom end of the upper plate body 1, and limiting mechanisms 9 are arranged at the corners of the sound insulation cotton pad 3.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is a multi-layer PCB circuit board. Specifically, the limiting mechanism 9 is composed of a support arm plate 10 and a support arm plate 12. One end of the support arm plate 10 is fixedly connected to the support arm plate 12, and an inner cavity 11 is formed between the support arm plate 10 and the support arm plate 12.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is a multi-layer PCB circuit board. Specifically, positioning holes 5 are opened at the top and top positions of the metal guide plate 4, and the external threaded connection of the limiting mechanism 9 is provided with a locking bolt 13, and one end of the locking bolt 13 passes through the support arm plate 10 and is threadedly connected to the inside of the positioning hole 5.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is a multi-layer PCB circuit board. Specifically, a sound-absorbing pad 8 is arranged inside the sound-insulating cotton pad 3, and a plurality of sound-absorbing holes are opened inside the sound-absorbing pad 8.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is a multi-layer PCB circuit board. Specifically, a side groove 14 is opened at the side position of the sound insulation cotton pad 3, a support spring 16 is arranged inside the side groove 14, and the support spring 16 is fixedly connected to an inner sliding seat 15 sliding inside the side groove 14, and one side of the inner sliding seat 15 is fixedly connected to one end of a support arm plate 10.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is a multi-layer PCB circuit board. Specifically, rubber supports 6 are arranged at the side positions of the upper plate body 1 and the side positions of the lower plate body 2, and a rubber support rod 7 is arranged at one end of the rubber support 6.

[0024] The utility model discloses a multi-layer PCB circuit board. The upper plate body 1 and the lower plate body 2 provided in the present application are supported by the metal guide piece 4 provided at the side position. While ensuring the supporting strength of the upper plate body 1 and the lower plate body 2, the heat dissipation performance is good, and the heat generated by the plate body during operation can be dissipated faster. At the same time, the present application further provides a sound insulation cotton pad 3 and a sound absorbing pad 8 on one side of the plate body. When the sound insulation cotton pad 3 is installed, it is installed through the limiting mechanism 9 provided at the side position, and the limiting mechanism 9 is pulled toward the outside to hook the support arm plate 1 10 and the support arm plate 2 12 onto the metal guide piece 4, and then the locking bolt 13 is rotated. The locking bolt 13 is threadedly connected to the inside of the positioning hole 5, thereby realizing the fixing of the limiting mechanism 9, and then completing the installation of the sound insulation cotton pad 3. The installation of the sound insulation cotton pad 3 is simple and efficient, and can effectively block noise when the circuit board is working.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A multi-layer PCB circuit board, comprising an upper plate body (1), a lower plate body (2), a sound insulation pad (3), a metal guide (4), a rubber support (6), a sound absorbing pad (8) and a limit mechanism (9), characterized in that: A lower plate body (2) is arranged at the bottom of the upper plate body (1), a plurality of metal guide plates (4) are arranged between the upper plate body (1) and the lower plate body (2), and the metal guide plates (4) are arranged at the side positions of the upper plate body (1) and the lower plate body (2), a sound insulation cotton pad (3) is arranged at the bottom end of the upper plate body (1), and a limiting mechanism (9) is arranged at the corners of the sound insulation cotton pad (3).

2. A multi-layer PCB circuit board according to claim 1, characterized in that: The limiting mechanism (9) is composed of a support arm plate 1 (10) and a support arm plate 2 (12); one end of the support arm plate 1 (10) is fixedly connected to the support arm plate 2 (12), and an inner cavity (11) is formed between the support arm plate 1 (10) and the support arm plate 2 (12).

3. A multi-layer PCB circuit board according to claim 1, characterized in that: Positioning holes (5) are provided at the top and upper positions of the metal guide plate (4); a locking bolt (13) is threadedly connected to the outside of the limiting mechanism (9); and one end of the locking bolt (13) passes through a supporting arm plate (10) and is threadedly connected to the inside of the positioning hole (5).

4. A multi-layer PCB circuit board according to claim 1, characterized in that: A sound-absorbing pad (8) is arranged inside the sound-insulating cotton pad (3), and a plurality of sound-absorbing holes are opened inside the sound-absorbing pad (8).

5. A multi-layer PCB circuit board according to claim 1, characterized in that: A side groove (14) is provided at the side of the sound insulation cotton pad (3), a support spring (16) is arranged inside the side groove (14), and the support spring (16) is fixedly connected to an inner sliding seat (15) sliding inside the side groove (14), and one side of the inner sliding seat (15) is fixedly connected to one end of the support arm plate (10).

6. A multi-layer PCB circuit board according to claim 1, characterized in that: Rubber supports (6) are provided at the side positions of the upper plate body (1) and the side positions of the lower plate body (2), and a rubber support rod (7) is provided at one end of the rubber support (6).

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