Multi-layer circuit board for power supply

Abstract

The utility model belongs to the technical field of multilayer circuit boards, and relates to a multilayer circuit board for a power supply, which comprises a mounting seat, a circuit board body and a heat conducting plate, a pair of limiting blocks are integrally formed at four corners of the top of the mounting seat, a positioning assembly is arranged between the two limiting blocks, and the positioning assembly comprises a pressing block and a torsion spring. A rotating shaft is fixedly inserted into the pressing block and rotationally mounted between the two limiting blocks, the two torsional springs are fixedly mounted between the two ends of the rotating shaft and the limiting blocks correspondingly, a cleaning groove is formed in the bottom in the mounting base, sliding grooves are formed in the inner walls of the two sides of the cleaning groove correspondingly, and a cleaning assembly is arranged between the two sliding grooves; the cleaning assembly comprises a cleaning brush roller and a moving button, a shaft rod is fixedly connected to the center of the cleaning brush roller in an inserted mode, sliding blocks are fixedly installed at the two ends of the shaft rod, the two sliding blocks are slidably installed in the two sliding grooves correspondingly, and the moving button is fixedly installed at the outer side end of one sliding block; the multi-layer circuit board is used for a power supply, not only has the function of quick disassembly and assembly, but also has good heat conduction and dustproof capabilities.

Description

Technical Field

[0001] The utility model belongs to the technical field of multilayer circuit boards, in particular to a multilayer circuit board for power supply. Background Art

[0002] A switching power supply is a high-frequency electric energy conversion device and a type of power supply. Its function is to convert a voltage of a certain level into the voltage or current required by the user through different forms of architecture. A multi-layer circuit board has multiple wiring layers, and there is a dielectric layer between every two layers. The dielectric layer can be made very thin. A multi-layer 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 the plated through holes on the cross section of the circuit board. A multi-layer circuit board is installed in the switching power supply. Multiple electronic components can be installed on the multi-layer circuit board, etc. It plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. The multi-layer circuit board fixes the electronic components on it and connects them into a circuit. The multi-layer circuit board is the carrier of the electronic components. The electronic components are installed on the multi-layer circuit board to realize the normal use of the switching power supply.

[0003] Traditional multi-layer circuit boards are directly fixed and installed through screw holes on the circuit boards, which makes disassembly and assembly more troublesome. Long-term use can easily cause the coating on the installation holes to fall off, which can cause moisture corrosion to the circuit boards in the future. In addition, they do not have good heat dissipation and dustproof capabilities, which affects their service life. Utility Model Content

[0004] In order to solve the technical problems that the traditional multi-layer circuit board proposed in the above background technology is directly fixed and installed through the screw holes on the circuit board, which is troublesome to disassemble and assemble, and the coating of the installation hole is easily peeled off after long-term use, which causes the circuit board to be corroded by moisture in the later period, and does not have good heat dissipation and dustproof capabilities, which affects the service life, the utility model provides the following technical solutions:

[0005] The utility model relates to a multilayer circuit board for power supply, comprising a mounting seat, a circuit board body and a heat conducting plate, wherein a pair of integrally formed limit blocks are arranged at the four corners of the top of the mounting seat, a positioning assembly is arranged between the two limit blocks, the positioning assembly comprises a pressing block and a torsion spring, a rotating shaft is fixedly inserted in the pressing block and the rotating shaft is rotatably installed between the two limit blocks, and two torsion springs are arranged and respectively fixedly installed between the two ends of the rotating shaft and the limit blocks;

[0006] A cleaning groove is provided at the bottom of the mounting seat and sliding grooves are provided on the inner walls on both sides of the cleaning groove. A cleaning component is provided between the two sliding grooves. The cleaning component includes a cleaning roller and a movable button. A shaft rod is fixedly inserted at the center of the cleaning roller and sliders are fixedly installed at both ends of the shaft rod. The two sliders are respectively slidably installed in the two sliding grooves and a movable button is fixedly installed on the outer end of one of the sliders.

[0007] As a preferred technical solution of the utility model, positioning screws are integrally formed at the four corners of the mounting seat.

[0008] As a preferred technical solution of the utility model, a slot is provided on the top of the pressing block, and plug-in columns are integrally formed at the four corners of the heat conducting plate, and the plug-in columns are plugged and adapted in the slot.

[0009] As a preferred technical solution of the utility model, a dustproof net is fixedly installed on the top of the mounting seat, and the cleaning hair roller is attached to the dustproof net.

[0010] As a preferred technical solution of the utility model, a dust removal groove is opened at one side end of the top of the mounting seat, and the depth of the dust removal groove is equal to the depth of the cleaning groove.

[0011] As a preferred technical solution of the utility model, the circuit board body is placed on the top of the mounting seat and is located between four pairs of limit blocks.

[0012] As a preferred technical solution of the utility model, the heat conducting plate is fixedly installed on the top of four pairs of limit blocks by bolts, and a plurality of heat conducting fins are integrally formed on the top of the heat conducting plate and a plurality of heat dissipation holes are provided on the plurality of heat conducting fins.

[0013] The beneficial effects achieved by the utility model are:

[0014] The four corners of the circuit board body are limited by the limit blocks, the pressure block is rotated to install, and then the hand is released to use the elastic force of the torsion spring to make the rotating shaft drive the pressure block to reset to achieve the purpose of pressing and positioning the circuit board body, so as to facilitate quick disassembly and installation.

[0015] The dustproof net is used to block the external dust to prevent the circuit board from being contaminated by dust and causing a short circuit. The slider is moved by moving the button to slide in the slide groove and the cleaning roller is driven to rotate by the shaft to achieve the purpose of cleaning the dustproof net.

[0016] The heat dissipated by the circuit board body is conducted away by the added heat-conducting fins, and the fin-type design can increase the area, and the heat dissipation holes can improve the air flow efficiency, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a multilayer circuit board for power supply of the utility model. Figure 1 ;

[0019] Figure 2This is a schematic diagram of the structure of a multilayer circuit board for power supply of the utility model. Figure 2 ;

[0020] Figure 3 This is a structural schematic diagram of a mounting base in a multi-layer circuit board for a power supply of the utility model;

[0021] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0022] Figure 5 The utility model is a structural schematic diagram of a heat conducting plate in a multilayer circuit board for a power supply.

[0023] In the figure: 1. mounting base; 101. positioning screw; 102. limiting block; 103. pressing block; 104. torsion spring; 105. rotating shaft; 106. slot; 107. dust screen; 108. slide groove; 109. cleaning roller; 110. moving button; 111. dust removal groove; 2. circuit board body; 3. heat conducting plate; 301. plug-in column; 302. heat dissipation hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Figure 1-5 As shown, a multilayer circuit board for power supply comprises a mounting seat 1, a circuit board body 2 and a heat conducting plate 3. A pair of integrally formed limit blocks 102 are provided at the four corners of the top of the mounting seat 1. A positioning assembly is provided between the two limit blocks 102. The positioning assembly comprises a pressing block 103 and a torsion spring 104. A rotating shaft 105 is fixedly inserted in the pressing block 103 and the rotating shaft 105 is rotatably installed between the two limit blocks 102. Two torsion springs 104 are provided and are respectively fixedly installed between the two ends of the rotating shaft 105 and the limit blocks 102. When in use, the pressing block 103 can be rotated to install when the circuit board body 2 is installed, and then the elastic force of the torsion spring 104 is released to make the rotating shaft 105 drive the pressing block 103 to reset to achieve the purpose of pressing and positioning the circuit board body 2, so as to facilitate quick disassembly and quick installation.

[0026] A cleaning groove is provided at the bottom of the mounting base 1 and sliding grooves 108 are provided on the inner walls on both sides of the cleaning groove. A cleaning component is provided between the two sliding grooves 108, and the cleaning component includes a cleaning roller 109 and a moving button 110. A shaft is fixedly inserted at the center of the cleaning roller 109 and sliders are fixedly installed at both ends of the shaft. The two sliders are respectively slidably installed in the two sliding grooves 108 and a moving button 110 is fixedly installed on the outer end of one of the sliders. When in use, the slider is moved by the moving button 110 to slide in the sliding groove 108 and the cleaning roller 109 is driven to rotate by the shaft, so as to achieve the purpose of cleaning the dustproof net 107.

[0027] Positioning screws 101 are integrally formed at the four corners of the mounting seat 1 . When in use, the mounting seat 1 is installed and fixed by the positioning screws 101 .

[0028] A slot 106 is provided on the top of the pressing block 103 , and plug-in posts 301 are integrally formed at the four corners of the heat conducting plate 3 and are plugged and adapted to the slot 106 . When in use, the plugging action of the plug-in posts 301 and the slot 106 further enhances the fixing effect of the circuit board body 2 .

[0029] A dustproof net 107 is fixedly installed on the top of the mounting base 1, and the cleaning hair roller 109 is fitted on the dustproof net 107. When in use, the dustproof net 107 blocks external dust to prevent the circuit board body 2 from being contaminated by dust and causing a short circuit.

[0030] A dust removal groove 111 is provided at one side end of the top of the mounting base 1 , and the depth of the dust removal groove 111 is equal to the depth of the cleaning groove. When in use, the dust in the dust removal groove 111 is removed from the cleaning groove by tilting the mounting base 1 to improve the cleaning efficiency.

[0031] The circuit board body 2 is placed on the top of the mounting base 1 and is located between four pairs of limit blocks 102. When in use, the four corners of the circuit board body 2 are limited by the limit blocks 102 to achieve the purpose of positioning and installation.

[0032] The heat conducting plate 3 is fixedly installed on the top of the four pairs of limit blocks 102 by bolts. A plurality of heat conducting fins are integrally formed on the top of the heat conducting plate 3 and a plurality of heat dissipation holes 302 are provided on the plurality of heat conducting fins. When in use, the heat dissipated by the circuit board body 2 is conducted through the heat conducting fins, and the fin-type design can increase the area. The heat dissipation holes 302 can improve the air flow efficiency to improve the heat dissipation efficiency.

[0033] Specifically, when the utility model is used, the pressing block 103 can be rotated to install the circuit board body 2, and then the hand is released to use the elastic force of the torsion spring 104 to make the rotating shaft 105 drive the pressing block 103 to reset to achieve the purpose of pressing and positioning the circuit board body 2. After the installation is completed, the components on the circuit board body 2 are positioned with a thermal conductive sticker, and the thermal conductive plate 3 is installed on the top of the limit block 102 by bolts. The heat dissipated by the circuit board body 2 is conducted through the thermal conductive fins, and the fin-type design can increase the area. The heat dissipation hole 302 can improve the air flow efficiency to improve the heat dissipation efficiency. After the assembly is completed, the mounting base 1 is installed and fixed by the positioning screw 101. When cleaning is required, the dustproof net 107 is used to block the external dust to prevent the circuit board body 2 from being contaminated by dust and causing a short circuit. The slider is moved by moving the button 110 to slide in the slide groove 108 and the cleaning roller 109 is driven to rotate by the shaft to achieve the purpose of cleaning the dustproof net 107.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multilayer circuit board for a power supply, comprising a mounting seat (1), a circuit board body (2) and a heat conducting plate (3), characterized in that: A pair of integrally formed limit blocks (102) are provided at the four corners of the top of the mounting seat (1); a positioning assembly is provided between the two limit blocks (102); the positioning assembly comprises a pressure block (103) and a torsion spring (104); a rotating shaft (105) is fixedly inserted in the pressure block (103) and the rotating shaft (105) is rotatably installed between the two limit blocks (102); two torsion springs (104) are provided and are respectively fixedly installed between the two ends of the rotating shaft (105) and the limit blocks (102); A cleaning groove is provided at the bottom of the mounting seat (1) and sliding grooves (108) are provided on the inner walls on both sides of the cleaning groove. A cleaning component is provided between the two sliding grooves (108), and the cleaning component comprises a cleaning roller (109) and a moving button (110). A shaft is fixedly inserted at the center of the cleaning roller (109) and sliders are fixedly installed at both ends of the shaft. The two sliders are respectively slidably installed in the two sliding grooves (108) and a moving button (110) is fixedly installed on the outer end of one of the sliders.

2. A multilayer circuit board for power supply according to claim 1, characterized in that: Positioning screws (101) are integrally formed at the four corners of the mounting seat (1).

3. A multilayer circuit board for power supply according to claim 1, characterized in that: A slot (106) is provided at the top of the pressing block (103), and plug-in columns (301) are integrally formed at the four corners of the heat conducting plate (3), and the plug-in columns (301) are plugged and adapted in the slot (106).

4. A multilayer circuit board for power supply according to claim 1, characterized in that: A dustproof net (107) is fixedly mounted on the top of the mounting seat (1), and the cleaning hair roller (109) is fitted on the dustproof net (107).

5. A multilayer circuit board for power supply according to claim 1, characterized in that: A dust removal groove (111) is provided at one side end of the top of the mounting seat (1), and the depth of the dust removal groove (111) is equal to the depth of the cleaning groove.

6. A multilayer circuit board for power supply according to claim 1, characterized in that: The circuit board body (2) is placed on the top of the mounting seat (1) and is located between four pairs of limit blocks (102).

7. A multilayer circuit board for power supply according to claim 1, characterized in that: The heat conducting plate (3) is fixedly mounted on the top of four pairs of limit blocks (102) by means of bolts, and a plurality of heat conducting fins are integrally formed on the top of the heat conducting plate (3), and a plurality of heat dissipation holes (302) are provided on the plurality of heat conducting fins.

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