Compression-resistant multi-layer composite circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses a compression-resistant multilayer composite circuit board, which comprises a multilayer circuit board body, two fixed angle seats are arranged on the bottom surface of the multilayer circuit board body, and a plurality of studs are fixedly arranged on the inner bottom surfaces of the two fixed angle seats close to corners. A plurality of first connecting holes corresponding to the studs are formed in the corners of the top face of the multi-layer circuit board body, a user enables one ends of the studs to penetrate through the second connecting holes to install the U-shaped fixing base, and the U-shaped fixing base is installed at the top of the multi-layer circuit board body. Then nuts are screwed into the studs to fix the multi-layer circuit board body and the U-shaped fixing bases, so that the fixing angle bases, the multi-layer circuit board body and the U-shaped fixing bases are combined and connected together, and a plurality of compression-resistant protection rods are installed on the sides, close to each other, of the two U-shaped fixing bases; electronic components installed on the top of the multi-layer circuit board body can be effectively protected, and the compression resistance effect is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of circuit boards, and specifically relates to a pressure-resistant multi-layer composite circuit board. Background Art

[0002] Multilayer circuit boards, also called circuit boards or PCB boards, are popular for their small size and large capacity. There is a dielectric layer between every two layers of a multilayer circuit board, and the dielectric layer can be made very thin. A multilayer circuit board has at least three conductive layers, two of which are on the outer surface, and the remaining layer is synthesized in the insulating board. The electrical connection between them is usually achieved through plated through holes on the cross section of the circuit board.

[0003] For example, a utility model patent with announcement number CN215581855U discloses a composite PCB circuit board with anti-bending, including a board body. The utility model is provided with a semicircular groove 1 at the front and rear ends of the left and right sides of the board body, and connecting strips are provided on the left and right sides of the board body. The opposite surfaces of the two connecting strips are respectively fitted with the left and right sides of the board body, and a semicircular groove 1 is provided around the lower groove edge of each semicircular groove 1 and the second semicircular groove, and a semicircular groove 2 is provided on the upper groove surface of each semicircular groove 1. A limiting mechanism is provided in four complete circular grooves formed by combining four semicircular grooves 1 and four semicircular grooves 2, so that the limiting mechanism is prevented from being directly separated after being subjected to low-intensity bending, so that the limiting mechanism can only respond to high-intensity bending, and the upper inclined surfaces of the two triangular blocks can be pressed again by pressing the board body downward to make the board body clamped by the limiting mechanism again. At this time, the limiting mechanism loses the restriction of the clamp ring, and the board body will bounce upwards when subjected to a small bending force, which can play the role of emergency reset.

[0004] In the process of implementing the present application, it was found that the technology has the following problems: the device is fixedly connected to the plate body by a connecting strip, so that the limiting mechanism is clamped in the groove and cannot be separated from the plate body; when the circuit board is subjected to a bending force, as the bending force increases, after reaching a certain strength, the clamping ring and the connecting ring are separated first, so that the limiting mechanism can be used normally, avoiding the limiting mechanism from directly separating after being subjected to low-intensity bending, so that the limiting mechanism can only cope with high-intensity bending; however, the overall compressive resistance of the plate body of the device is not very high; when an external object contacts the plate body and applies too much pressure to it, it will still cause the plate body to bend or break; for this purpose, a pressure-resistant multi-layer composite circuit board is provided. Utility Model Content

[0005] The purpose of the present application is to provide a pressure-resistant multi-layer composite circuit board in order to solve the problem that the overall pressure resistance of the board of the device mentioned above is not very high, and when external objects come into contact with the board and apply too much pressure to it, the board will still bend or break.

[0006] The technical solution adopted in the present application is as follows: A pressure-resistant multi-layer composite circuit board, comprising a multi-layer circuit board body, wherein two fixed angle seats are arranged on the bottom surface of the multi-layer circuit board body, and a plurality of studs are fixedly installed on the inner bottom surfaces of the two fixed angle seats near the corners, a plurality of connection holes corresponding to the studs are opened at the corners of the top surface of the multi-layer circuit board body, and one end of the stud away from the fixed angle seat passes through the interior of the connection hole one, and two U-shaped fixing seats are arranged on the top surface of the multi-layer circuit board body, and a connection hole two corresponding to the studs is opened on the top surface of the two U-shaped fixing seats, one end of the stud passes through the interior of the connection hole two, and a nut is threadedly connected to one end of the stud, and a plurality of pressure-resistant guard rods are fixedly installed on the side close to each other of the two U-shaped fixing seats.

[0007] In a preferred embodiment, a fixing block is fixedly installed on a side of the fixed angle seat, and a fixing hole is opened on the top surface of the fixing block.

[0008] In a preferred embodiment, a rubber pad is fixedly mounted on the bottom surface of the U-shaped fixing seat.

[0009] In a preferred embodiment, a buckle groove is provided on the side of the fixed angle seat.

[0010] In a preferred embodiment, a sponge pad is fixedly installed inside the fixed angle seat.

[0011] In a preferred embodiment, the inner diameters of the connection hole 1 and the connection hole 2 are larger than the outer diameter of the stud.

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

[0013] In the present application, due to the adoption of the above-mentioned scheme, the user first passes the multi-stud through the connecting hole one, thereby facilitating the installation of the multi-layer circuit board body into the interior of the fixed angle seat, which is convenient for installing the multi-layer circuit board body while protecting its corners. Then the user passes one end of the stud through the connecting hole two to install the U-shaped fixing seat, so that the U-shaped fixing seat is installed on the top of the multi-layer circuit board body. At this time, the user screws the nut into the inside of the stud, thereby facilitating the fixation of the multi-layer circuit board body and the U-shaped fixing seat, so that the fixed angle seat, the multi-layer circuit board body and the U-shaped fixing seat are combined and connected together, and multiple compression-resistant guard bars are installed on the side where the two U-shaped fixing seats are close to each other, which can effectively protect the electronic components installed on the top of the multi-layer circuit board body and achieve a compression-resistant effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a partial structural exploded schematic diagram of the present application;

[0016] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0017] Markings in the figure: 1. Multi-layer circuit board body; 2. Fixed angle seat; 3. Stud; 4. Connection hole one; 5. U-shaped fixing seat; 6. Connection hole two; 7. Nut; 8. Compression guard bar; 9. Fixing block; 10. Fixing hole; 11. Rubber pad; 12. Buckle groove; 13. Sponge pad. DETAILED DESCRIPTION

[0018] 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.

[0019] refer to Figure 1 , Figure 2 and Figure 3 A pressure-resistant multi-layer composite circuit board comprises a multi-layer circuit board body 1, two fixed angle seats 2 are arranged on the bottom surface of the multi-layer circuit board body 1, and a plurality of studs 3 are fixedly installed near the corners on the inner bottom surfaces of the two fixed angle seats 2, and a plurality of connecting holes 4 corresponding to the studs 3 are opened at the corners of the top surface of the multi-layer circuit board body 1, and one end of the stud 3 away from the fixed angle seat 2 passes through the interior of the connecting hole 4; the user can first pick up the multi-layer circuit board body 1, and then pass the stud 3 through the connecting hole 4, so as to facilitate the installation of the multi-layer circuit board body 1 into the interior of the fixed angle seat 2, which is convenient for installing the multi-layer circuit board body 1 while protecting its corners.

[0020] refer to Figure 1 , Figure 2 and Figure 3, the top surface of the multilayer circuit board body 1 is provided with two U-shaped fixing seats 5, and the top surfaces of the two U-shaped fixing seats 5 are both provided with connecting holes 2 6 corresponding to the studs 3, one end of the stud 3 passes through the inside of the connecting hole 2 6, and the bottom surface of the U-shaped fixing seat 5 is fixedly installed with a rubber pad 11, the inner diameter of the connecting hole 1 4 and the connecting hole 2 6 is larger than the outer diameter of the stud 3, and a nut 7 is threadedly connected to one end of the stud 3, and a plurality of compression-resistant guard bars 8 are fixedly installed on the side of the two U-shaped fixing seats 5 close to each other; when the multilayer circuit board body 1 is installed into the interior of the fixed angle seat 2, the user then passes one end of the stud 3 through the connecting hole 2 6 to install the U-shaped fixing seat 5, so that the U-shaped fixing seat 5 is installed on the multilayer circuit board body 1. The top of the multi-layer circuit board body 1, when the U-shaped fixing seat 5 is installed on the top of the multi-layer circuit board body 1, the user screws the nut 7 into the inside of the stud 3, so as to facilitate the fixation of the multi-layer circuit board body 1 and the U-shaped fixing seat 5, so that the fixed angle seat 2, the multi-layer circuit board body 1 and the U-shaped fixing seat 5 are combined and connected together. At this time, a plurality of pressure-resistant guard bars 8 are installed on the side where the two U-shaped fixing seats 5 are close to each other, which can effectively protect the electronic components installed on the top of the multi-layer circuit board body 1 and play a pressure-resistant effect. By setting the rubber pad 11, the bottom of the U-shaped fixing seat 5 will not affect its surface when it contacts the top surface of the multi-layer circuit board body 1.

[0021] refer to Figure 1 , Figure 2 A fixing block 9 is fixedly installed on the side of the fixed angle seat 2, and a fixing hole 10 is opened on the top surface of the fixing block 9; through the setting of the fixing block 9, it is convenient for the user to pass the bolt through the inside of the fixing hole 10 to install the fixed angle seat 2 in a suitable position.

[0022] refer to Figure 1 , Figure 2 A buckle groove 12 is provided on the side of the fixed angle seat 2; the buckle groove 12 is provided to facilitate personnel to install the fixed angle seat 2 or take the fixed angle seat 2 more conveniently and comfortably.

[0023] refer to Figure 2 , Figure 3 A sponge pad 13 is fixedly installed inside the fixed angle seat 2; by setting the sponge pad 13, it is convenient to protect the multi-layer circuit board body 1 inside the fixed angle seat 2, and try to avoid scratches or indentations on the multi-layer circuit board body 1.

[0024] The implementation principle of a pressure-resistant multi-layer composite circuit board embodiment of the present application is as follows: the user can first pick up the multi-layer circuit board body 1, and then make the stud 3 pass through the connection hole 1 4, so as to facilitate the installation of the multi-layer circuit board body 1 into the interior of the fixed angle seat 2, which is convenient for installing the multi-layer circuit board body 1 while protecting its corners. When the multi-layer circuit board body 1 is installed into the interior of the fixed angle seat 2, the user then passes one end of the stud 3 through the connection hole 2 6 to install the U-shaped fixing seat 5, so that the U-shaped fixing seat 5 is installed on the top of the multi-layer circuit board body 1. When the U-shaped fixing seat 5 is installed on the top of the multi-layer circuit board body 1, the user then screws the nut 7 into the inside of the stud 3, so as to facilitate the fixing of the multi-layer circuit board body 1 and the U-shaped fixing seat 5, so that the fixed angle seat 2, the multi-layer circuit board body 1 and the U-shaped fixing seat 5 are combined and connected together. At this time, a plurality of pressure-resistant guard bars 8 are installed on the side where the two U-shaped fixing seats 5 are close to each other, which can effectively protect the electronic components installed on the top of the multi-layer circuit board body 1 and achieve a pressure-resistant effect.

[0025] 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 pressure-resistant multi-layer composite circuit board, comprising a multi-layer circuit board body (1), characterized in that: The bottom surface of the multilayer circuit board body (1) is provided with two fixed angle seats (2), and a plurality of studs (3) are fixedly installed on the inner bottom surfaces of the two fixed angle seats (2) near the corners, and a plurality of connection holes (4) corresponding to the studs (3) are opened at the corners of the top surface of the multilayer circuit board body (1), and one end of the stud (3) away from the fixed angle seat (2) passes through the inside of the connection hole (4), and the top surface of the multilayer circuit board body (1) is provided with two U-shaped fixed seats (5), and the top surfaces of the two U-shaped fixed seats (5) are provided with connection holes (6) corresponding to the studs (3), one end of the stud (3) passes through the inside of the connection hole (6), and one end of the stud (3) is threadedly connected with a nut (7), and a plurality of anti-pressure guard bars (8) are fixedly installed on the sides of the two U-shaped fixed seats (5) close to each other.

2. A compression-resistant multi-layer composite circuit board according to claim 1, characterized in that: A fixing block (9) is fixedly mounted on the side of the fixed angle seat (2), and a fixing hole (10) is provided on the top surface of the fixing block (9).

3. A compression-resistant multi-layer composite circuit board according to claim 1, characterized in that: A rubber pad (11) is fixedly mounted on the bottom surface of the U-shaped fixing seat (5).

4. The compression-resistant multi-layer composite circuit board according to claim 1, characterized in that: A buckle groove (12) is provided on the side of the fixed angle seat (2).

5. The compression-resistant multi-layer composite circuit board according to claim 1, characterized in that: A sponge pad (13) is fixedly installed inside the fixed angle seat (2).

6. The compression-resistant multi-layer composite circuit board according to claim 1, characterized in that: The inner diameters of the connection hole 1 (4) and the connection hole 2 (6) are greater than the outer diameter of the stud (3).

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