High-voltage-resistant circuit board

Abstract

The utility model discloses a circuit board with high voltage resistance, which relates to the field of circuit boards and comprises a bottom frame and a circuit board, a rectangular storage groove is arranged at the top of the inner wall of the bottom frame, the circuit board is positioned in the storage groove on the bottom frame, and a rectangular frame-shaped top cover is arranged above the bottom frame. The bottom of the top cover makes contact with the top of the bottom frame and presses the top of the circuit board, vertical fixing pipes are inserted into the four corners of the storage groove in the bottom frame in a penetrating mode, first through holes are formed in the four corners of the top cover, and the four first through holes in the top cover are connected to the upper half portions of the four fixing pipes in a sleeving mode respectively. The upper half portions of the four fixing pipes are sleeved with nuts abutting against the top of the top cover in a threaded mode, a side plate is arranged at the bottom of one end of the bottom frame, and a plurality of through openings are evenly formed in the side face of the side plate. According to the utility model, when the circuit board is installed, the circuit board can be prevented from being damaged by bolts, the installation of the circuit board can be rapidly completed, and the heat of the circuit board can be effectively dissipated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit board, concretely relates to a high voltage resistance circuit board. BACKGROUND

[0002] Circuit board, also known as printed circuit board, is an indispensable part in electronic equipment, which provides electrical connection and physical support for electronic components, and forms the connection between electronic components by processing conductive patterns on insulating substrates. However, the bottom of the common circuit board is in full contact with the mounting surface after installation, which can cause the bottom of the circuit board to be unable to dissipate heat normally. If a heat dissipation space is reserved between the bottom of the circuit board and the mounting surface, the circuit board will not be able to withstand a large pressure. When the pressure is applied to the circuit board, and the bottom of the circuit board has no support, the circuit board is prone to damage. In addition, the common fixing method for the circuit board is to use bolts to penetrate, which can cause damage to the connection between the circuit board and the bolt after multiple disassembly and assembly. Therefore, the present application provides a high voltage resistance circuit board. SUMMARY

[0003] In view of the above problems existing in the prior art circuit board, the utility model is proposed.

[0004] Therefore, the utility model aims at providing a high voltage resistance circuit board, which solves the problem that the bolt can easily damage the circuit board during installation, and the bottom of the circuit board is not easy to dissipate heat after installation.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a high voltage resistance circuit board, comprising a bottom frame and a circuit board, a rectangular storage groove is formed in the top of the inner wall of the bottom frame, the circuit board is located in the storage groove on the bottom frame, a rectangular frame-shaped top cover is arranged above the bottom frame, the bottom of the top cover is in contact with the top of the bottom frame and is pressed on the top of the circuit board, a vertical fixing tube is inserted through each of the four corners of the storage groove on the bottom frame, a first through hole is formed in each of the four corners of the top cover, and the four first through holes on the top cover are respectively sleeved on the upper half of the four fixing tubes, a nut abutting against the top of the top cover is threadedly sleeved on the upper half of each of the four fixing tubes, a side plate is arranged at the bottom of one end of the bottom frame, a plurality of through openings are uniformly formed in the side surface of the side plate, a heat dissipation fan is arranged in each of the through openings, and a plurality of fins arranged in order are uniformly and fixedly installed on the bottom of the bottom frame.

[0006] Preferably, a second through hole penetrating upward and downward is formed in the top of each of the two ends of the side plate, and the second through holes on the two sides of the side plate are movably sleeved on the lower half of the two fixing tubes at the same end of the bottom frame.

[0007] Preferably, the fins are horizontally arranged, two ends of each fin are fixedly connected to two ends of the bottom frame, and the middle part of each fin is extended to the bottom of the storage groove.

[0008] Preferably, a bolt is inserted through each fixed tube.

[0009] Preferably, the four corners of the storage groove and the four corners of the circuit board are provided with arc shapes, the diameter of the arc at the corner of the circuit board is greater than the diameter of the arc at the corner of the storage groove, the four side walls of the circuit board are attached to the four side walls of the storage groove, and the four corners of the circuit board are not in contact with the fixed tubes when the circuit board is located in the storage groove.

[0010] Preferably, the height of the side plate is the same as the height of the fixed tubes below the bottom frame.

[0011] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0012] First, the side plate is sleeved on the two fixed tubes at the bottom of one end of the bottom frame, then the positions of the four fixed tubes are fixed by using bolts, so that the position of the bottom frame is fixed first, then the circuit board is placed in the storage groove on the bottom frame, then the top cover is sleeved on the four fixed tubes to press on the circuit board and the bottom frame, and then the nuts are sleeved on the four fixed tubes, so that the position of the circuit board can be quickly fixed and installed, and under the action of the multiple fins and the multiple cooling fans on the side plate, the heat dissipation effect of the bottom of the circuit board can be greatly improved, and the multiple fins can also provide stable support to the bottom of the circuit board, thereby improving the pressure resistance of the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0014] Figure 1 It is a structural schematic diagram of the utility model as a whole.

[0015] Figure 2 It is an exploded view of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the side of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the connection between the bottom frame and the top cover of the utility model.

[0018] Figure 5 It is the structure diagram of the bottom frame and the fin connection of the utility model.

[0019] Mark explanation:

[0020] 1, bottom frame; 2, circuit board; 3, top cover; 4, fixed tube; 5, first through hole; 6, nut; 7, bolt; 8, fin; 9, side plate; 10, second through hole; 11, cooling fan. Specific implementation

[0021] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0022] The utility model provides a kind of high voltage-resistant circuit board as Figures 1-5 As shown in the figure, including bottom frame 1 and circuit board 2, the top of the inner wall of bottom frame 1 is provided with rectangular storage groove, and circuit board 2 is located in the storage groove on bottom frame 1, rectangular frame-shaped top cover 3 is arranged above bottom frame 1, the bottom of top cover 3 is in contact with the top of bottom frame 1 and is pressed on the top of circuit board 2, and vertical fixed tube 4 is inserted and connected at the four corners of storage groove on bottom frame 1, first through hole 5 is formed at the four corners of top cover 3, and four first through holes 5 on top cover 3 are respectively sleeved on the upper half of four fixed tubes 4, nut 6 is threadedly sleeved on the upper half of four fixed tubes 4 and abuts against the top of top cover 3, side plate 9 is arranged at the bottom of one end of bottom frame 1, a plurality of through openings are uniformly formed on the side surface of side plate 9, and cooling fan 11 is arranged in each through opening, a plurality of fins 8 are uniformly and fixedly installed on the bottom of bottom frame 1, the position of circuit board 2 can be fixedly installed by bottom frame 1 and top cover 3, and the heat dissipation effect of the bottom of circuit board 2 can be greatly improved under the action of a plurality of fins 8 and a plurality of cooling fans 11 on side plate 9, and a plurality of fins 8 can also play the effect of stable support on the bottom of circuit board 2, so as to improve the pressure resistance of circuit board 2.

[0023] In order to install the position of side plate 9, as shown in Figure 2 And Figure 3 The top of both ends of side plate 9 is provided with second through hole 10 penetrating up and down, and the second through holes 10 on both sides of side plate 9 are movably sleeved on the lower half of two fixed tubes 4 at the same end of bottom frame 1, so that the position of side plate 9 can be quickly fixed and installed, so that a plurality of cooling fans 11 installed on side plate 9 can quickly dissipate heat for fin 8.

[0024] In order to improve the heat dissipation of the bottom of circuit board 2, as shown in Figure 2 And Figure 5As shown, the fins 8 are horizontally arranged, and two ends of each fin 8 are fixedly connected to the two ends of the bottom frame 1, and the top of the middle part of each fin 8 extends to the bottom of the storage groove and is flush with the bottom of the storage groove, and the side plate 9 is located at the same end of the plurality of fins 8, so that the top of the plurality of fins 8 can contact the bottom of the circuit board 2, thereby improving the heat dissipation of the bottom of the circuit board 2, and under the action of the plurality of fins 8, the circuit board 2 can also be supported, thereby avoiding damage to the circuit board 2 under pressure.

[0025] In order to fix and install the position of the bottom frame 1, as shown in Figure 1 and Figure 2 , a bolt 7 is inserted through each fixed tube 4, and the bolt 7 is screwed with the installation surface through the fixed tube 4, so that the position of the bottom frame 1 can be fixed and installed.

[0026] In order to smoothly install the circuit board 2 in the storage groove on the top of the bottom frame 1, as shown in Figure 1 and Figure 2 , the four corners of the storage groove and the four corners of the circuit board 2 are provided with arc shapes, and the diameter of the arc at the corner of the circuit board 2 is greater than the diameter of the arc at the corner of the storage groove, and the four side walls of the circuit board 2 are respectively attached to the four side walls of the storage groove, and when the circuit board 2 is located in the storage groove, the four corners of the circuit board 2 are not in contact with the fixed tube 4, so that when the circuit board 2 is installed, the four fixed tubes 4 in the storage groove will not hinder the placement and installation of the circuit board 2.

[0027] Finally, in order to prevent the side plate 9 from shaking, as shown in Figure 1 and Figure 3 , the height of the side plate 9 is the same as the height of the fixed tube 4 below the bottom frame 1, and is supported after the bottom frame 1 is installed, and under the extrusion of the bottom frame 1 and the installation surface, the side plate 9 cannot shake, and the side plate 9 can also support the bottom of one end of the bottom frame 1.

[0028] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A high voltage withstanding circuit board comprising a base frame (1) and a circuit board (2), characterized in that: The top of the inner wall of the bottom frame (1) is provided with a rectangular storage groove, the circuit board (2) is located in the storage groove on the bottom frame (1), a rectangular frame-shaped top cover (3) is arranged above the bottom frame (1), the bottom of the top cover (3) is in contact with the top of the bottom frame (1) and is pressed on the top of the circuit board (2), vertical fixing tubes (4) are inserted through the four corners of the storage groove on the bottom frame (1), first through holes (5) are formed at the four corners of the top cover (3), the four first through holes (5) on the top cover (3) are respectively sleeved on the upper half of the four fixing tubes (4), and nuts (6) abutting against the top of the top cover (3) are threadedly sleeved on the upper half of the four fixing tubes (4), the bottom of one end of the bottom frame (1) is provided with a side plate (9), a plurality of through openings are uniformly formed in the side of the side plate (9), and a heat dissipation fan (11) is arranged in each through opening, and a plurality of wings (8) arranged in order are uniformly and fixedly installed on the bottom of the bottom frame (1).

2. The high voltage withstanding circuit board according to claim 1, wherein: The top of the side plate (9) is provided with a second through hole (10) penetrating up and down, and the second through holes (10) on the two sides of the side plate (9) are movably sleeved on the lower half of the two fixing tubes (4) at the same end of the bottom frame (1).

3. The high voltage withstanding circuit board according to claim 2, wherein: The wings (8) are horizontally arranged, the two ends of each wing (8) are fixedly connected to the two ends of the bottom of the bottom frame (1), and the top of the middle part of each wing (8) extends to the bottom of the bottom frame (1) and is flush with the bottom of the storage groove, and the side plate (9) is located at the same end of the plurality of wings (8).

4. The high voltage withstanding circuit board according to claim 1, wherein: A bolt (7) is inserted through each fixing tube (4).

5. The high voltage withstanding circuit board according to claim 1, wherein: The four corners of the storage groove and the four corners of the circuit board (2) are provided with arc shapes, the diameter of the arc at the corner of the circuit board (2) is greater than the diameter of the arc at the corner of the storage groove, the four side walls of the circuit board (2) are respectively attached to the four side walls of the storage groove, and when the circuit board (2) is located in the storage groove, the four corners of the circuit board (2) are not in contact with the fixing tubes (4).

6. The high voltage withstanding circuit board according to claim 1, wherein: The height of the side plate (9) is the same as the height of the fixing tube (4) below the bottom frame (1).

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