High-voltage-resistant insulating printed PCB (printed circuit board)

Abstract

The utility model relates to the technical field of printed circuit boards, in particular to a high-voltage-resistant insulating printed PCB, which comprises a circuit board provided with a plurality of through holes arranged at intervals. A sleeve is coaxially arranged in the through hole, an annular skirt edge is installed on the edge of the top of the sleeve, an annular base is further arranged on the top of the sleeve and is an annular rubber block, an annular groove is formed in the inner side of the annular base, the annular groove corresponds to the skirt edge, and the skirt edge is wrapped with the annular base. An annular supporting seat is arranged below the through hole, and the bottom of the sleeve is connected into the supporting seat in a threaded mode. When the high-voltage-resistant insulating printed PCB is used, the sleeve and the supporting seat are mounted at the through hole, so that the supporting strength of the periphery of the through hole is improved, the annular seat and the rubber ring are matched with the buffering effect when the circuit board is fixed by bolts, the probability that the through hole of the circuit board is broken is reduced, and the service life of the circuit board is prolonged. Conditions of current overload and the like in the circuit of the circuit board are further prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, in particular to a high-voltage resistant insulating printed circuit board PCB. Background Art

[0002] Printed circuit board, also known as printed circuit board, is the provider of electrical connection for electronic components. It has a history of more than 100 years; its design is mainly layout design; the main advantage of using circuit board is that it greatly reduces wiring and assembly errors, improves the level of automation and production labor rate, and the design of printed circuit board is based on circuit schematic diagram to realize the functions required by circuit designers.

[0003] When using a printed circuit board, it is necessary to install it in the corresponding position. Therefore, corresponding holes will be opened on the printed circuit board to fix it with bolts. However, when the bolts are tightened, if they are tightened too much, it is easy to cause the bolts to squeeze the printed circuit board, which in turn causes damage to the printed circuit board, making it impossible to use the printed circuit board normally. In addition, a damaged printed circuit board is prone to circuit overload, etc., which reduces the pressure resistance of the printed circuit board. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a high-voltage resistant insulating printed circuit board (PCB).

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: design a high-voltage resistant insulated printed circuit board PCB, including a circuit board, and a plurality of through holes arranged at intervals are opened on the circuit board;

[0006] A sleeve is coaxially arranged in the through hole, an annular skirt is installed on the top edge of the sleeve, and an annular seat is also arranged on the top of the sleeve. The annular seat is an annular rubber block, and an annular groove is opened on the inner side of the annular seat. The annular groove corresponds to the skirt, so that the annular seat is wrapped on the skirt;

[0007] An annular support seat is arranged below the through hole, and the bottom of the sleeve is threadedly connected in the support seat, and a rubber ring is arranged between the support seat and the circuit board, and the rubber ring is sleeved on the sleeve.

[0008] Preferably, the circuit board comprises a substrate, a conductive layer is arranged on both the upper and lower sides of the substrate, an adhesive layer is arranged on the other side of the conductive layer, and a pad layer is arranged on the adhesive layer.

[0009] Preferably, arc-shaped cut corners are provided at the corners of the circuit board.

[0010] Preferably, a bottom plate is provided on a side of the circuit board away from the annular seat, and a plug hole corresponding to the through hole is opened on the bottom plate, wherein the rubber ring is located between the bottom plate and the circuit board, and the support seat is arranged on a side of the bottom plate away from the circuit board;

[0011] A limiting plate is installed along the edge of the bottom plate, and the circuit board is placed in the limiting plate.

[0012] Preferably, a plurality of ventilation slots arranged at intervals are provided on the limiting plate, and a plurality of fins are provided through the bottom plate, and the fins are fixed on the bottom plate.

[0013] Preferably, the bottom plate is an insulating plate, and the surface of the sleeve and the surface of the support seat are coated with insulating paint.

[0014] Preferably, an annular base is coaxially mounted on one end of the support base away from the skirt.

[0015] The design scheme proposed by the utility model has the following beneficial effects during application:

[0016] 1. When installing the high-voltage resistant insulated printed PCB circuit board, the sleeve and the support seat are installed at the through hole, which improves the support strength and stress strength around the through hole, reduces the probability of fracture at the through hole position of the circuit board, and prevents the circuit board from breaking and causing current overload in the circuit, thereby improving the circuit board's voltage resistance.

[0017] 2. The high-voltage resistant insulating printed PCB circuit board sets an annular seat and a rubber ring at both ends of the through hole. When the circuit board is installed and fixed with bolts, the extrusion force of the bolts acts on the annular seat and the rubber ring, which can not only improve the fixing effect of the bolts through the elasticity of the rubber, but also buffer the tightening force of the bolts, so as to protect the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 It is an exploded view of the utility model;

[0021] Figure 4 This is a schematic diagram of the sleeve structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the circuit board structure of the utility model.

[0023] In the figure: 1, circuit board; 2, through hole; 3, sleeve; 4, skirt; 5, annular seat; 6, annular groove; 7, rubber ring; 8, support seat; 9, annular base; 10, bottom plate; 11, jack; 12, limit plate; 13, ventilation groove; 14, fin; 15, substrate; 16, conductive layer; 17, adhesive layer; 18, pad layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 5 A high voltage resistant insulated printed circuit board PCB, comprising a circuit board 1, wherein Figure 5 As shown, the circuit board 1 includes a substrate 15, a conductive layer 16 is disposed on both the upper and lower sides of the substrate 15, an adhesive layer 17 is disposed on the other side of the conductive layer 16, and a pad layer 18 is disposed on the adhesive layer 17;

[0026] like Figure 3 As shown in the figure, a plurality of through holes 2 arranged at intervals are provided on the circuit board 1, and a sleeve 3 is coaxially provided in the through hole 2, and the sleeve 3 is arranged to penetrate the through hole 2, so that when the bolt is taken to fix the circuit board 1, the bolt can be passed through the sleeve 3 to prevent the bolt from contacting the circuit board 1, thereby reducing the loss of the circuit board 1 when the bolt is tightened; an annular skirt 4 is installed on the top edge of the sleeve 3, and an annular seat 5 is also provided on the top of the sleeve 3, and the annular seat 5 is an annular rubber block, and an annular groove 6 is provided on the inner side of the annular seat 5, and the annular groove 6 is connected to the circuit board 1. The skirt 4 corresponds to the annular seat 5, so that the annular seat 5 is wrapped on the skirt 4. When the circuit board 1 is fixed by bolts, the nuts of the bolts will press on the annular seat 5. Since the annular seat 5 is made of rubber, the pressure when the bolts are tightened can be buffered, thereby protecting the circuit board 1 from being damaged by the extrusion of the bolts; and an annular groove 6 is opened on the inner side of the annular seat 5, so that the annular seat 5 can wrap the entire skirt 4, thereby making indirect contact between the skirt 4 and the circuit board 1 through the annular seat 5, preventing the skirt 4 from extruding the circuit board 1 after being subjected to the pressure of the bolts.

[0027] An annular support seat 8 is provided below the through hole 2, and the bottom of the sleeve 3 is threadedly connected to the support seat 8, and a rubber ring 7 is provided between the support seat 8 and the circuit board 1, and the rubber ring 7 is sleeved on the sleeve 3. After the sleeve 3 is placed in the through hole 2, the support seat 8 is taken and threadedly installed on the end of the sleeve 3 away from the skirt 4, and the bolts are passed through the support seat 8 to connect with the mounting carrier of the circuit board 1, so that the support seat 8 is used as a support member when the circuit board 1 is installed, which not only avoids the contact between the circuit board 1 and the mounting carrier and the bolts, but also leaves a gap between the circuit board 1 and the mounting carrier, which is conducive to the flow of air on the surface of the circuit board 1 and facilitates the dissipation of heat on the circuit board 1.

[0028] Further, such as Figure 2 and Figure 3 As shown, a bottom plate 10 is provided on the side of the circuit board 1 away from the annular seat 5, and a plug hole 11 corresponding to the through hole 2 is provided on the bottom plate 10, wherein the rubber ring 7 is located between the bottom plate 10 and the circuit board 1, and the support seat 8 is arranged on the side of the bottom plate 10 away from the circuit board 1; a limiting plate 12 is installed along the edge of the bottom plate 10, and the circuit board 1 is placed in the limiting plate 12, so that the limiting plate 12 wraps the circuit board 1 on the side and the side close to the mounting carrier, thereby improving the shielding protection of the circuit board 1, and because a plurality of ventilation slots 13 arranged at intervals are provided on the limiting plate 12, and a plurality of fins 14 are provided through the bottom plate 10, the fins 14 are fixed on the bottom plate 10, so that a gap is maintained between the bottom plate 10 and the circuit board 1, which does not affect the heat dissipation of the circuit board 1, and the arrangement of the fins 14 and the ventilation slots 13 is more conducive to the heat dissipation of the circuit board 1.

[0029] Specifically, during installation, first pass the sleeve 3 through the through hole 2, then put the rubber ring 7 on the sleeve 3, and place the circuit board 1 on the base plate 10. At this time, the rubber ring 7 is clamped between the circuit board and the base plate 10, and is used as a gasket between the base plate 10 and the circuit board 1. The sleeve 3 will also pass through the socket 11 on the base plate 10 accordingly, and then take the support seat 8 and thread it on the sleeve 3. Finally, the base plate 10 can be placed on the installation carrier and fixed with bolts.

[0030] In order to improve the support strength and stability of the support base 8 on the mounting carrier, as Figure 2 and Figure 3 As shown, an annular base 9 is coaxially mounted on one end of the support base 8 away from the skirt 4 .

[0031] It should be noted that, in order to facilitate the process of taking the circuit board 1, the corners of the circuit board 1 may cause scratches to people, such as Figure 3 As shown, arc-shaped cut corners are arranged at the corners of the circuit board 1 .

[0032] In order to ensure the insulation of the printed PCB after the components are connected, the bottom plate 10 is an insulating plate, and the surface of the sleeve 3 and the surface of the support seat 8 are coated with insulating paint.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high voltage resistant insulated printed circuit board, characterized in that: The circuit board (1) comprises a plurality of through holes (2) arranged at intervals. A sleeve (3) is coaxially arranged in the through hole (2), an annular skirt (4) is installed on the top edge of the sleeve (3), and an annular seat (5) is also arranged on the top of the sleeve (3), the annular seat (5) is an annular rubber block, and an annular groove (6) is opened on the inner side of the annular seat (5), the annular groove (6) corresponds to the skirt (4), so that the annular seat (5) is wrapped on the skirt (4); An annular support seat (8) is provided below the through hole (2), and the bottom of the sleeve (3) is threadedly connected in the support seat (8), and a rubber ring (7) is provided between the support seat (8) and the circuit board (1), and the rubber ring (7) is sleeved on the sleeve (3).

2. The high voltage resistant insulated printed circuit board according to claim 1, characterized in that: The circuit board (1) comprises a substrate (15), a conductive layer (16) is arranged on both the upper and lower sides of the substrate (15), an adhesive layer (17) is arranged on the other side of the conductive layer (16), and a pad layer (18) is arranged on the adhesive layer (17).

3. A high voltage resistant insulated printed circuit board according to claim 2, characterized in that: Arc-shaped cut corners are provided at the corners of the circuit board (1).

4. The high voltage resistant insulated printed circuit board according to claim 2, characterized in that: A bottom plate (10) is provided on a side of the circuit board (1) away from the annular seat (5), and a plug hole (11) corresponding to the through hole (2) is provided on the bottom plate (10), wherein the rubber ring (7) is located between the bottom plate (10) and the circuit board (1), and the support seat (8) is arranged on a side of the bottom plate (10) away from the circuit board (1); A limiting plate (12) is installed along the edge of the bottom plate (10), and the circuit board (1) is placed in the limiting plate (12).

5. The high voltage resistant insulated printed circuit board according to claim 4, characterized in that: A plurality of ventilation slots (13) arranged at intervals are provided on the limiting plate (12), and a plurality of fins (14) are provided through the bottom plate (10), and the fins (14) are fixed on the bottom plate (10).

6. The high voltage resistant insulated printed circuit board according to claim 4, characterized in that: The bottom plate (10) is an insulating plate, and the surface of the sleeve (3) and the surface of the support seat (8) are both coated with insulating paint.

7. The high voltage resistant insulated printed circuit board according to claim 1, characterized in that: An annular base (9) is coaxially mounted on one end of the support seat (8) away from the skirt (4).

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