AC charging pile PCB heat radiation structure

Abstract

The utility model discloses a PCB heat radiation structure of an AC charging pile. The PCB heat radiation structure comprises a bottom plate, a top plate and a connecting cylinder. Sleeve plates are symmetrically mounted on the front side and the rear side of the top of the bottom plate, inner plates are movably mounted in the sleeve plates, a top plate is fixedly mounted at the tops of the inner plates, and a connecting seat is mounted in the top plate. A power supply threaded sleeve is embedded in the inner side wall of the connecting base, a power supply piece is fixedly installed in the middle of the inner top end of the connecting base, and a conductive threaded sleeve is fixedly installed on the outer wall of the connecting cylinder. According to the utility model, the height of the top plate can be freely controlled, so that the top plate is suitable for PCBs of units with different heights, and the connecting cylinder can be freely disassembled and assembled in the connecting seat and can be pointedly installed aiming at the units which are seriously heated on the PCBs, so that the fan blades driven by the motor can accurately dissipate heat of a heating area, the heat dissipation effect is better, and the heat dissipation efficiency is improved. And the equipment flexibility is greatly improved, and disassembly and replacement can be conveniently achieved when the motor is damaged in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection devices, in particular to a heat dissipation structure for a PCB board of an AC charging pile. Background Art

[0002] The PCB board is the commonly said circuit board. If classified by the number of layers, it is divided into three major categories: single-sided board, double-sided board, and multi-layer circuit board. First is the single-sided board. On the most basic PCB, components are concentrated on one side, and conductors are concentrated on the other side. Since the conductors only appear on one side, this kind of PCB is called a single-sided circuit board. The double-sided board is an extension of the single-sided board. When single-layer wiring cannot meet the needs of electronic products, the double-sided board is used. The multi-layer board refers to a printed circuit board with more than three conductive pattern layers and the insulating materials between them laminated with each other, and the conductive patterns between them are interconnected as required. Currently, a PCB board is provided inside the charging pile. However, due to the relatively high working temperature inside the charging pile, a heat dissipation mechanism is designed specifically for the heat dissipation of the PCB board;

[0003] However, most of the current heat dissipation structures for the PCB board of AC charging piles directly install a fan above the circuit board. However, in this way, the position of the fan cannot be freely moved, and it is inconvenient to disassemble and assemble. And not all units on the PCB board will generate serious heat, only some units will generate serious heat. Therefore, the fixed fan often cannot accurately dissipate heat for the heat-generating units, and the heat dissipation effect is not good. Secondly, when the fan is damaged, it is often inconvenient to replace, and the overall flexibility is poor.

[0004] Therefore, how to provide a heat dissipation structure for a PCB board of an AC charging pile is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0005] An object of the utility model is to provide a heat dissipation structure for a PCB board of an AC charging pile. The utility model can freely control the height of the top plate to make it suitable for PCB boards of different height units, and the connecting cylinder can be freely disassembled and assembled within the connecting seat, and can be targeted to install opposite to the units on the PCB board that generate serious heat, so that the fan driven by the motor can accurately dissipate heat for the heat-generating area. Therefore, the heat dissipation effect is better, the flexibility of the device is greatly improved, and the motor can be conveniently disassembled and replaced when it is damaged later.

[0006] A heat dissipation structure for a PCB board of an AC charging pile according to an embodiment of the utility model includes a bottom plate, a top plate, and a connecting cylinder;

[0007] The front and rear sides of the top of the bottom plate are symmetrically provided with sleeve plates. An inner plate is movably installed in the sleeve plates. The top of the inner plate is fixedly provided with a top plate, and a connecting seat is installed inside the top plate;

[0008] A power supply threaded sleeve is embedded in the inner side wall of the connecting seat, a power supply plate is fixedly installed in the center of the top inner top of the connecting seat, a conductive threaded sleeve is fixedly installed on the outer wall of the connecting tube, a conductive plate is fixedly installed in the center of the top of the connecting tube, a motor is fixedly installed inside the connecting tube, and fan blades are driven and installed on the output shaft at the bottom of the motor. The conductive threaded sleeve and the conductive plate are electrically connected to the positive and negative poles of the motor respectively.

[0009] Furthermore, there are multiple groups of connecting sockets, and the multiple groups of connecting sockets are evenly distributed in the top plate.

[0010] Furthermore, the connecting cylinder is screwed into the connecting seat, and the conductive threaded sleeve and the power supply threaded sleeve are threadedly engaged, and the conductive sheet is in contact with the power supply sheet.

[0011] Furthermore, a wiring trough is fixedly installed on the top of the top plate, and the wiring trough is connected to each group of connecting seats. A wire is provided inside the wiring trough, and the power supply threaded sleeve and the power supply plate inside each group of connecting seats are connected in parallel through the wire.

[0012] Furthermore, mounting holes are symmetrically provided on both sides of the bottom plate, mounting columns are fixedly installed at the four corners of the top of the bottom plate, and screw holes are provided in the mounting columns.

[0013] Furthermore, a plurality of groups of through holes for heat dissipation are provided in parallel and transversely inside the bottom plate.

[0014] Furthermore, a fastening bolt is threadedly connected to the upper outer side of the sleeve plate.

[0015] Furthermore, the connecting tube is inverted and mounted below the connecting seat, with the fan blades facing the bottom plate.

[0016] The beneficial effects of the utility model are:

[0017] The utility model can realize free disassembly and assembly by rotating the connecting tube in the connecting base, and during installation, the conductive threaded sleeve is rotated and engaged in the power supply threaded sleeve, and the power supply sheet contacts the conductive sheet, thereby realizing the power supply of the motor, so that the connecting tube can be installed at any position below the connecting base, ensuring that the fan blades can be aimed at the heating unit to blow air, thereby realizing precise heat dissipation, and the top plate can be freely adjusted in height by the inner plate being retracted and extended in the sleeve plate, which is suitable for the height of the unit on the PCB board, greatly improving the installation flexibility, improving the heat dissipation efficiency, and can conveniently be disassembled and replaced when the motor is damaged in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 The overall structural schematic diagram of a heat dissipation structure for an AC charging pile PCB board proposed by the present utility model;

[0020] Figure 2 The bottom view structural schematic diagram of the connecting seat of a heat dissipation structure for an AC charging pile PCB board proposed by the present utility model;

[0021] Figure 3 The structural schematic diagram of the connecting cylinder of a heat dissipation structure for an AC charging pile PCB board proposed by the present utility model.

[0022] In the figure: 1, bottom plate; 2, sleeve plate; 3, inner plate; 4, top plate; 5, connecting seat; 6, wiring groove; 7, mounting post; 8, screw hole; 9, mounting hole; 10, through hole; 11, fastening bolt; 12, power supply threaded sleeve; 13, power supply piece; 14, connecting cylinder; 15, motor; 16, conductive piece; 17, fan blade; 18, conductive threaded sleeve. Specific embodiments

[0023] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0024] Reference Figure 1 , a heat dissipation structure for an AC charging pile PCB board, including a bottom plate 1, a top plate 4 and a connecting cylinder 14;

[0025] On the front and rear sides of the top of the bottom plate 1, sleeve plates 2 are symmetrically installed. An inner plate 3 is movably installed inside the sleeve plates 2. A fastening bolt 11 is threadedly connected above the outside of the sleeve plates 2. The top of the inner plate 3 is fixedly installed with a top plate 4, and a connecting seat 5 is installed inside the top plate 4;

[0026] A motor 15 is fixedly installed inside the connecting cylinder 14. A fan blade 17 is drivingly installed on the output shaft at the bottom of the motor 15. After the motor 15 is powered on, it can drive the fan blade 17 to rotate;

[0027] Among them, the number of the connecting seats 5 is multiple groups, and the multiple groups of connecting seats 5 are equidistantly distributed inside the top plate 4. Setting multiple groups of connecting seats 5 can realize the flexible installation of multiple groups of connecting cylinders 14. The connecting cylinder 14 can be installed in the connecting seats 5 at appropriate positions according to the actual PCB board structure;

[0028] Specifically, the connecting cylinder 14 is installed upside down below the connecting seat 5, and the fan blade 17 faces the bottom plate 1, so that when the motor 15 starts, the fan blade 17 can blow air towards the bottom plate 1 to realize the heat dissipation of the PCB board installed on the bottom plate 1;

[0029] Secondly, mounting holes 9 are symmetrically formed on both sides of the bottom plate 1. Mounting columns 7 are fixedly installed at the four corners of the top of the bottom plate 1. Screw holes 8 are formed in the mounting columns 7. The fixed installation of the bottom plate 1 inside the charging pile housing can be realized through the mounting holes 9. The PCB board can be placed on the mounting columns 7, and after a bolt passes through the PCB board and is screwed into the screw hole 8, the fixing is completed;

[0030] In addition, a number of groups of through holes 10 for heat dissipation are horizontally and parallelly formed inside the bottom plate 1. The ventilation effect at the bottom of the PCB board can be ensured through the provided multiple groups of through holes 10, thereby ensuring the heat dissipation quality;

[0031] In this embodiment, the bottom plate 1 can be fixed inside the housing, and the PCB can be fixedly installed above the mounting column 7 above the bottom plate 1. At this time, the height of the top plate 4 can be adjusted by telescoping the inner plate 3 inside the sleeve plate 2, so that the top plate 4 can be suitable for PCB boards of different thicknesses. After the installation is completed, the motor 15 inside the connecting cylinder 14 is started to drive the fan blade 17 to rotate. At this time, the air can be blown towards the PCB board to complete the heat dissipation work.

[0032] Reference Figures 1-3 , a power supply threaded sleeve 12 is embedded and installed on the inner side wall of the connecting seat 5, and a power supply sheet 13 is fixedly installed at the center of the top end inside the connecting seat 5. A conductive threaded sleeve 18 is fixedly installed on the outer wall of the connecting cylinder 14, and a conductive sheet 16 is fixedly installed at the center of the top of the connecting cylinder 14. The conductive threaded sleeve 18 and the conductive sheet 16 are respectively electrically connected to the positive and negative poles of the motor 15;

[0033] Among them, the connecting cylinder 14 is screwed into the connecting seat 5, and the conductive threaded sleeve 18 and the power supply threaded sleeve 12 are in threaded engagement. The conductive sheet 16 is in contact with the power supply sheet 13. The connecting cylinder 14 can be screwed into the connecting seat 5 by rotating. After being screwed in, the conductive threaded sleeve 18 and the power supply threaded sleeve 12 are in threaded engagement, and the contact between the conductive sheet 16 and the power supply sheet 13 can realize the connection of the circuit. The conductive threaded sleeve 18 and the power supply threaded sleeve 12 are both positive poles, and the conductive sheet 16 and the power supply sheet 13 are both negative poles;

[0034] Secondly, a wiring groove 6 is fixedly installed on the top of the top plate 4. The wiring groove 6 is connected to each group of connecting seats 5. Wires are provided inside the wiring groove 6. The power supply threaded sleeves 12 and the power supply sheets 13 inside each group of connecting seats 5 are connected in parallel through wires. The power supply threaded sleeves 12 and the power supply sheets 13 of each group are connected in parallel through wires, so as to realize the power-on work of the power supply threaded sleeves 12 and the power supply sheets 13 inside each group of connecting seats 5;

[0035] In this embodiment, the connecting cylinder 14 can be freely disassembled and assembled below the connecting seat 5 by rotation. The installation method is through the threaded engagement of the conductive threaded sleeve 18 and the power supply threaded sleeve 12. After engagement, the conductive threaded sleeve 18 and the power supply threaded sleeve 12 can be electrically connected. At the same time, the conductive sheet 16 and the power supply sheet 13 will also come into contact with each other to achieve electrical connection, so as to realize the power supply of each motor 15. Therefore, the connecting cylinder 14 can be disassembled and assembled flexibly and freely, which is convenient for adjusting the installation position and subsequent replacement.

[0036] Working principle: First, the PCB board can be fixedly installed on the top of the mounting post 7, and the inner plate 3 can be pulled to adjust the top plate 4 to a suitable height inside the sleeve plate 2. Then, the fastening bolt 11 is rotated to lock and fix it, so that it can be suitable for the height of the components soldered on the PCB board. Then, the connecting cylinder 14 can be rotated and screwed into the connecting seat 5 directly above the severely heated unit on the PCB board. At this time, the conductive threaded sleeve 18 will engage and contact the power supply threaded sleeve 12, and the power supply sheet 13 will also contact the conductive sheet 16 at this time, so as to realize the connection of the positive and negative poles and supply power to the motor 15. The motor 15 can be started at this time to drive the fan blade 17 to rotate, so as to blow air towards the heated unit on the PCB board to achieve heat dissipation.

[0037] It can be understood that the driving method of the motor in the present invention can be driven by an external power cord, and the control of the motor can be programmed and controlled by a main control system. Its control principle can be achieved by existing control technologies. The model of the motor is not limited to a single type and can be the types existing in the market suitable for the present invention.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A heat dissipation structure for an AC charging pile PCB board, characterized in that, It includes a bottom plate (1), a top plate (4) and a connecting cylinder (14); On the front and rear sides of the top of the bottom plate (1), sleeve plates (2) are symmetrically installed. An inner plate (3) is movably installed in the sleeve plate (2). The top of the inner plate (3) is fixedly installed with a top plate (4). A connecting seat (5) is installed inside the top plate (4); On the inner side wall of the connecting seat (5), a power supply thread sleeve (12) is embedded. At the center of the inner top of the connecting seat (5), a power supply sheet (13) is fixedly installed. On the outer wall of the connecting cylinder (14), a conductive thread sleeve (18) is fixedly installed. At the center of the top of the connecting cylinder (14), a conductive sheet (16) is fixedly installed. Inside the connecting cylinder (14), a motor (15) is fixedly installed. On the bottom output shaft of the motor (15), a fan blade (17) is drivingly installed. The conductive thread sleeve (18) and the conductive sheet (16) are respectively electrically connected to the positive and negative poles of the motor (15).

2. The heat dissipation structure of an AC charging pile PCB board according to claim 1, characterized in that, The number of the connecting seats (5) is multiple groups, and the multiple groups of connecting seats (5) are equidistantly distributed in the top plate (4).

3. The heat dissipation structure of an AC charging pile PCB board according to claim 1, wherein The connecting cylinder (14) is screwed into the connecting seat (5), and the conductive thread sleeve (18) and the power supply thread sleeve (12) are in threaded engagement, and the conductive sheet (16) is in contact with the power supply sheet (13).

4. The heat dissipation structure of an AC charging pile PCB board according to claim 1, wherein, On the top of the top plate (4), a wiring groove (6) is fixedly installed. The wiring groove (6) is connected to each group of connecting seats (5). Wires are arranged inside the wiring groove (6). The power supply thread sleeves (12) and the power supply sheets (13) inside each group of connecting seats (5) are connected in parallel through wires.

5. The heat dissipation structure of an AC charging pile PCB board according to claim 1, wherein On both sides of the bottom plate (1), mounting holes (9) are symmetrically opened. At the four corners of the top of the bottom plate (1), mounting columns (7) are fixedly installed. Screw holes (8) are opened inside the mounting columns (7).

6. The heat dissipation structure of an AC charging pile PCB board according to claim 1, characterized in that, Inside the bottom plate (1), a number of perforations (10) for heat dissipation are horizontally and parallelly opened.

7. The heat dissipation structure of an AC charging pile PCB board according to claim 1, characterized in that Above the outer side of the sleeve plate (2), a fastening bolt (11) is threadedly connected.

8. The heat dissipation structure of an AC charging pile PCB board according to claim 1, wherein, The connecting cylinder (14) is installed upside down below the connecting seat (5), and the fan blade (17) faces the bottom plate (1).

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