Stably-installed multilayer double-sided circuit board for electric appliance

Abstract

The utility model relates to the field of circuit boards, and discloses a stable-installation multilayer double-sided circuit board for an electric appliance, the stable-installation multilayer double-sided circuit board comprises a double-layer multi-sided circuit board body, the bottom surface of the double-layer multi-sided circuit board body is provided with two supporting bases, and the inner bottom surfaces of the two supporting bases are fixedly provided with positioning screw rods; the top surface of the double-layer multi-surface circuit board body is provided with limiting mounting holes corresponding to the positioning screw rods, and a user firstly enables the positioning screw rods to penetrate through the limiting mounting holes formed in the double-layer multi-surface circuit board body, so that the double-layer multi-surface circuit board body is conveniently mounted in the supporting base; and then a worker screws a fixing nut into a positioning screw rod, so that the double-layer multi-surface circuit board body in the supporting base is conveniently fixed, and at the moment, the bottom of the double-layer multi-surface circuit board body is in contact with a flexible sponge pad, so that protection on the bottom of the double-layer multi-surface circuit board body is improved, and damage to the bottom of the double-layer multi-surface circuit board body is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of circuit boards, and specifically relates to a multi-layer double-sided circuit board for electrical appliances with stable installation. Background Art

[0002] A multi-layer double-sided circuit board is a carrier of electronic components used to make complex circuit designs. It consists of multiple layers of conductive layers and insulating layers, where the conductive layers are connected by apertures and electroplating to form circuit connections and routings. Compared with single-sided or double-sided circuit boards, multi-layer double-sided circuit boards have higher integration and better circuit performance, and can achieve more complex circuit designs. It is usually composed of an inner layer and an outer layer. The inner layer is made by a lamination process, while the outer layer is made by processes such as etching or chemical deposition.

[0003] For example, the utility model patent with announcement number CN216650093U discloses a high-density double-sided multi-layer printed circuit board, including a printed circuit board, a bottom plate, a nut and a bottom block, characterized in that a rubber top plate is installed at the top of the printed circuit board, a shielding layer is installed at the top of the rubber top plate, the bottom end of the shielding layer is fixedly connected to the rubber top plate, a protective layer is installed at the top of the shielding layer, the bottom end of the protective layer is fixedly connected to the shielding layer, screws are installed around the top of the protective layer, and the middle part of the screw is movably connected to the protective layer, the shielding layer and the rubber top plate respectively, a heat dissipation metal plate is installed at the bottom end of the printed circuit board, a bottom plate is installed at the bottom end of the heat dissipation metal plate, circular holes are installed around the bottom plate respectively, the screws are threadedly connected to the nuts respectively, a groove is installed at the middle part of the top of the bottom plate, air outlet holes are evenly distributed on both sides of the bottom end of the bottom plate, an exhaust fan is installed at the middle part of the bottom end of the bottom plate, and the exhaust fan is fixedly connected to the bottom plate around. The utility model has a simple structure and is easy to operate.

[0004] The device uses a protective layer and a shielding layer to respectively prevent collision and shield external signal interference for the printed circuit board, and contacts the top surface of the heat dissipation metal plate through the bottom end of the printed circuit board, so as to absorb the heat of the printed circuit board and improve the heat dissipation effect. However, the bottom surface of the printed circuit board of the device contacts the top surface of the heat dissipation metal plate. Since the bottom of the printed circuit board has a conductive layer, the conductive layer will be worn when the printed circuit board contacts the heat dissipation metal plate, which affects the use of the circuit board. Therefore, a multi-layer double-sided circuit board for electrical appliances with stable installation is provided. Utility Model Content

[0005] The purpose of the present application is to provide a multi-layer double-sided circuit board for electrical appliances with stable installation in order to solve the above-mentioned problems.

[0006] The technical solution adopted in the present application is as follows: a multi-layer double-sided circuit board for electrical appliances with stable installation, comprising a double-layer multi-sided circuit board body, the bottom surface of the double-layer multi-sided circuit board body is provided with two supporting bases, and the inner bottom surfaces of the two supporting bases are fixedly installed with positioning screws, the top surface of the double-layer multi-sided circuit board body is provided with a limiting mounting hole corresponding to the positioning screw, one end of the positioning screw passes through the interior of the limiting mounting hole, a flexible sponge pad is fixedly installed inside the supporting base, and the outer surface of one end of the positioning screw is threadedly connected with a fixing nut.

[0007] In a preferred embodiment, two fixing brackets are provided on the top surface of the double-layer multi-sided circuit board body, and the top surfaces of the two fixing brackets are provided with connecting holes corresponding to the positioning screws, one end of the positioning screw passes through the interior of the connecting hole, and a protective plate is fixedly installed on the side where the two fixing brackets are close to each other.

[0008] In a preferred embodiment, a fixing block is fixedly installed on the side of the support base, and a fixing hole is opened on the top surface of the fixing block.

[0009] In a preferred embodiment, a rubber pad is fixedly mounted on the bottom surface of the fixing bracket.

[0010] In a preferred embodiment, a shielding plate is fixedly mounted on the bottom surface of the protection plate.

[0011] In a preferred embodiment, four positioning screws are fixedly installed inside the support base near the corners.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] 1. In the present application, due to the adoption of the above-mentioned scheme, the user first passes the positioning screw through the limiting mounting hole opened on the double-layer multi-sided circuit board body, thereby facilitating the installation of the double-layer multi-sided circuit board body inside the support base, and then the user screws the fixing nut into the interior of the positioning screw, thereby facilitating the fixation of the double-layer multi-sided circuit board body inside the support base. At this time, the bottom of the double-layer multi-sided circuit board body is in contact with the flexible sponge pad, thereby improving the protection of the bottom of the double-layer multi-sided circuit board body and reducing the damage to the bottom of the double-layer multi-sided circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the positioning screw structure of this application;

[0016] Figure 3 For this application Figure 2The enlarged structural diagram at A in the middle;

[0017] Figure 4 This is a schematic diagram of the fixed bracket structure of this application.

[0018] Markings in the figure: 1. Multi-layer double-sided circuit board body; 2. Support base; 3. Positioning screw; 4. Limit mounting hole; 5. Flexible sponge pad; 6. Fixing nut; 7. Fixing bracket; 8. Connection hole; 9. Protective plate; 10. Fixing block; 11. Fixing hole; 12. Rubber pad; 13. Shielding plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] refer to Figure 1 , Figure 2 and Figure 3 A multi-layer double-sided circuit board for electrical appliances with stable installation includes a double-layer multi-sided circuit board body 1, and two supporting bases 2 are arranged on the bottom surface of the double-layer multi-sided circuit board body 1; the two supporting bases 2 are arranged to facilitate the limiting and fixing of the double-layer multi-sided circuit board body 1.

[0021] refer to Figure 2 , Figure 3 and Figure 4 The top surface of the double-layer multi-sided circuit board body 1 is provided with a limiting mounting hole 4 corresponding to the positioning screw 3, one end of the positioning screw 3 passes through the inside of the limiting mounting hole 4, a flexible sponge pad 5 is fixedly installed inside the support base 2, and a fixing nut 6 is threadedly connected to the outer surface of one end of the positioning screw 3; the user first passes the positioning screw 3 through the limiting mounting hole 4 opened on the double-layer multi-sided circuit board body 1, so as to facilitate the installation of the double-layer multi-sided circuit board body 1 inside the support base 2, and then the user screws the fixing nut 6 into the inside of the positioning screw 3, so as to facilitate the fixation of the double-layer multi-sided circuit board body 1 inside the support base 2. At this time, the bottom of the double-layer multi-sided circuit board body 1 is in contact with the flexible sponge pad 5, thereby improving the protection of the bottom of the double-layer multi-sided circuit board body 1 and reducing the damage to the bottom of the double-layer multi-sided circuit board body 1.

[0022] refer to Figure 2 , Figure 3 and Figure 4Two fixing brackets 7 are arranged on the top surface of the double-layer multi-sided circuit board body 1, and rubber pads 12 are fixedly installed on the bottom surface of the fixing brackets 7; by setting the rubber pads 12, it is possible to avoid the fixing brackets 7 from causing scratches and other damages to the double-layer multi-sided circuit board body 1.

[0023] refer to Figure 1 , Figure 2 and Figure 4 , and the top surfaces of the two fixing brackets 7 are each provided with a connecting hole 8 corresponding to the positioning screw 3, one end of the positioning screw 3 passes through the interior of the connecting hole 8, and a protective plate 9 is fixedly installed on the side where the two fixing brackets 7 are close to each other, and a shielding plate 13 is fixedly installed on the bottom surface of the protective plate 9; through the provided connecting hole 8, it is convenient for one end of the positioning screw 3 to pass through its interior, thereby facilitating the installation and fixation of the fixing bracket 7, and through the provision of the protective plate 9, it is convenient to protect the double-layer multi-sided circuit board body 1 to avoid damage to it by external objects as much as possible, and the shielding plate 13 is used to shield electromagnetic radiation or block the propagation of electromagnetic waves, and to avoid interference of external signals to the double-layer multi-sided circuit board body 1 as much as possible, and the shielding plate 13 is made of conductive material, such as metal (such as copper, aluminum) or conductive coating.

[0024] refer to Figure 1 , Figure 2 A fixing block 10 is fixedly installed on the side of the support base 2, and a fixing hole 11 is opened on the top surface of the fixing block 10; through the setting of the fixing block 10, it is convenient for personnel to use screws to pass through the inside of the fixing hole 11 to install the support base 2 and the double-layer multi-sided circuit board body 1 in a suitable position.

[0025] The implementation principle of an embodiment of a multi-layer double-sided circuit board for electrical appliances with stable installation in the present application is as follows: the user first passes the positioning screw 3 through the limiting installation hole 4 opened on the double-layer multi-sided circuit board body 1, so as to facilitate the installation of the double-layer multi-sided circuit board body 1 inside the support base 2, and then the user screws the fixing nut 6 into the interior of the positioning screw 3, so as to facilitate the fixation of the double-layer multi-sided circuit board body 1 inside the support base 2. At this time, the bottom of the double-layer multi-sided circuit board body 1 is in contact with the flexible sponge pad 5, thereby improving the protection of the bottom of the double-layer multi-sided circuit board body 1 and reducing the damage to the bottom of the double-layer multi-sided circuit board body 1. By providing a protective plate 9, it is convenient to protect the double-layer multi-sided circuit board body 1 and avoid damage to it by external objects as much as possible. The shielding plate 13 is used to shield electromagnetic radiation or block the propagation of electromagnetic waves, so as to avoid interference of external signals to the double-layer multi-sided circuit board body 1. The device has a simple structure and is easy to operate, and can effectively reduce the impact on the bottom conductive layer of the multi-layer double-sided circuit board body 1.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layer double-sided circuit board for an electrical appliance with stable installation, comprising a double-layer multi-sided circuit board body (1), characterized in that: The bottom surface of the double-layer multi-sided circuit board body (1) is provided with two support bases (2), and the inner bottom surfaces of the two support bases (2) are fixedly installed with positioning screws (3), and the top surface of the double-layer multi-sided circuit board body (1) is provided with a limiting installation hole (4) corresponding to the positioning screw (3), one end of the positioning screw (3) passes through the inside of the limiting installation hole (4), and a flexible sponge pad (5) is fixedly installed inside the support base (2), and the outer surface of one end of the positioning screw (3) is threadedly connected with a fixing nut (6).

2. A multi-layer double-sided circuit board for electrical appliances with stable installation as claimed in claim 1, characterized in that: Two fixing brackets (7) are arranged on the top surface of the double-layer multi-sided circuit board body (1), and the top surfaces of the two fixing brackets (7) are each provided with a connecting hole (8) corresponding to the positioning screw (3), one end of the positioning screw (3) passes through the inside of the connecting hole (8), and a protective plate (9) is fixedly installed on the side of the two fixing brackets (7) close to each other.

3. A multi-layer double-sided circuit board for electrical appliances with stable installation as claimed in claim 1, characterized in that: A fixing block (10) is fixedly mounted on the side of the support base (2), and a fixing hole (11) is provided on the top surface of the fixing block (10).

4. A multi-layer double-sided circuit board for electrical appliances with stable installation as claimed in claim 2, characterized in that: A rubber pad (12) is fixedly mounted on the bottom surface of the fixed bracket (7).

5. A multi-layer double-sided circuit board for electrical appliances with stable installation as claimed in claim 2, characterized in that: A shielding plate (13) is fixedly mounted on the bottom surface of the protection plate (9).

6. A multi-layer double-sided circuit board for electrical appliances with stable installation as claimed in claim 1, characterized in that: A total of four positioning screws (3) are fixedly installed inside the support base (2) near the corners.

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