CN207265856U - An output switching power supply - Google Patents

Abstract

The utility model relates to an output switch power supply, which comprises a shell and a circuit board, wherein the shell is a cuboid, the interior of the shell is hollow, the shell comprises a top plate and a bottom plate, a side plate is arranged between the top plate and the bottom plate, a guide groove is fixedly arranged on the inner wall of the side plate, a circuit board is arranged in the guide groove, a resistor, a capacitor and a transformer are arranged on the circuit board, the circuit board is connected and provided with an output connector through a lead, the interior of the shell is positioned at the lower side of the circuit board and is provided with a heat radiation fan, the bottom plate is positioned at the lower side of the heat radiation fan and is provided with a vent, a dust screen is arranged on the vent, the upper surface of the top plate is provided with a plurality of heat radiation fins, a plurality of heat radiation, the fixing effect is good, the structure is simple, the installation is simple and convenient, the manufacturing cost is low, and the fixing device is convenient to manufacture and popularize.

Description

An output switching power supply

technical field

The utility model relates to an output switching power supply.

Background technique

The existing switching power supply is cooled by natural wind. The circuit board of the switching power supply is placed horizontally, and the natural wind takes away the heat generated by the electronic components from the surface of the circuit board, so as to achieve the purpose of cooling and maintain the normal operation of the switching power supply. , but in actual use, this structure cannot satisfy the heat dissipation effect of the switching power supply. The existing heat dissipation technology only sets heat dissipation fins and heat dissipation holes on the surface of the shell, and cannot perform internal heat dissipation for the heat dissipation of the circuit board. Working for a long time at high temperature will damage the electronic components in the switching power supply and shorten the service life of the switching power supply. When installing the output connector, it is often necessary to disassemble the entire shell of the switching power supply for installation. Such installation The method is time-consuming and labor-intensive, and the wiring installation needs to be re-installed when the connector is replaced. Therefore, it is urgent to design an output switching power supply.

Utility model content

The technical problem to be solved by the utility model is to provide an output switching power supply that can well dissipate heat on the electronic components on the circuit board, has good heat dissipation effect, good fixing effect, simple structure, simple and convenient installation, and low manufacturing cost. .

In order to solve the above technical problems, the technical solution of the present invention is: an output switching power supply, including a housing and a circuit board, the housing is a cuboid, the inside of the housing is hollow, and the housing includes a top plate and a bottom plate , a side plate is installed between the top plate and the bottom plate, a guide groove is fixed on the inner wall of the side plate, a circuit board is installed in the guide groove, and a resistor, a capacitor and a transformer are installed on the circuit board, and the The circuit board is connected with an output connector through a wire, and the inside of the housing is provided with a cooling fan on the lower side of the circuit board, and the bottom plate is located on the lower side of the cooling fan to open a vent, and the vent is installed on the vent. A dust net, the upper surface of the top plate is provided with a number of heat dissipation fins, and a number of heat dissipation through holes are provided on the top plate between the heat dissipation fins, and a slide is fixedly installed on the lower side of the circuit board in the housing. rail, the slide rail is movably installed with a mounting seat, the bottom of the mounting seat is fixedly connected with a push rod, and the push rod extends downward through the bottom plate and the dust-proof net, and the bottom end of the push rod is fixed A push block is installed, the output joint is installed on the mounting seat, the side plate is provided with a joint inlet and outlet, and a rotating shaft is installed on the outer side of the side plate on the upper side of the joint inlet and outlet, and the rotating shaft is hinged There is a dust-proof door, and a wire slot is opened on the dust-proof door.

As a preferred technical solution, several through holes are opened on the circuit board, heat pipes are sleeved in the through holes, the heat pipes are welded on the circuit board, and heat conduction sleeves are welded on the lower side of the top plate.

As a preferred technical solution, the heat pipe is close to the transformer and the resistor.

As a preferred technical solution, the heat pipe is a hollow structure, and the lower port of the heat pipe is trumpet-shaped.

As a preferred technical solution, the heat conduction sleeve is also a hollow structure, and the upper end of the heat conduction sleeve is welded to the top plate, and the inside of the heat conduction sleeve is hollow and communicates with the heat dissipation through hole on the top plate.

As a preferred technical solution, the outer diameter of the upper port of the heat pipe is slightly smaller than the inner diameter of the lower end of the heat pipe.

As a preferred technical solution, several mounting seats are fixedly installed on the bottom of the bottom plate at the periphery of the air vent.

As a preferred technical solution, several rubber ridges are provided on the pushing block.

Due to the adoption of the above technical solution, an output switching power supply includes a housing and a circuit board. The housing is a cuboid with a hollow interior. A side plate is installed between them, and a guide groove is fixed on the inner wall of the side plate, and a circuit board is installed in the guide groove, and a resistor, a capacitor and a transformer are installed on the circuit board, and the circuit board is connected and installed by a wire Output connector, the inside of the housing is located on the lower side of the circuit board to provide a cooling fan, the bottom plate is located on the lower side of the cooling fan to open an air vent, the air vent is equipped with a dust-proof net, and the top plate There are several heat dissipation fins on the surface, and several heat dissipation through holes are provided on the top plate between the heat dissipation fins. A slide rail is fixedly installed on the lower side of the circuit board inside the housing, and on the slide rail An installation seat is installed movable, and a push rod is fixedly connected to the bottom of the installation seat, and the push rod extends downward through the bottom plate and the dust-proof net, and a push block is fixedly installed at the bottom end of the push rod, and the The output joint is installed on the mounting seat, the side plate is provided with a joint inlet and outlet, and a rotating shaft is installed on the outer side of the side plate on the upper side of the joint inlet and outlet, and a dustproof door is hinged on the rotating shaft. There is a wire slot on the dustproof door.

An output switching power supply can well dissipate heat to electronic components on a circuit board, has good heat dissipation effect, good fixing effect, simple structure, simple and convenient installation, low manufacturing cost, and is convenient for manufacture and popularization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a structural schematic diagram of the dust-proof door in the embodiment of the utility model.

Detailed ways

As shown in Figure 1 and Figure 2, an output switching power supply includes a housing and a circuit board 1, the housing is a cuboid, the inside of the housing is hollow, the housing includes a top plate 2 and a bottom plate 3, the A side plate 4 is installed between the top plate 2 and the bottom plate 3, a guide groove 5 is fixedly provided on the inner wall of the side plate 4, a circuit board 1 is installed in the guide groove 5, and a resistor is installed on the circuit board 1. Capacitors and transformers, the circuit board 1 is connected with an output connector 6 by wires, the inside of the housing is located on the lower side of the circuit board 1 and provided with a cooling fan 7, and the bottom plate 3 is located on the lower side of the cooling fan 7 A vent is provided, and a dust-proof net 8 is installed on the vent, and a plurality of heat dissipation fins 9 are arranged on the upper surface of the top plate 2, and several heat dissipation vents are arranged between the heat dissipation fins 9 on the top plate 2. hole 10, a slide rail 11 is fixedly installed on the lower side of the circuit board 1 in the housing, and a mount 12 is movably mounted on the slide rail 11, and a push rod 21 is fixedly connected to the bottom of the mount 12. The push rod 21 extends downwards through the bottom plate 3 and the dust-proof net 8, the bottom end of the push rod 21 is fixedly equipped with a push block 18, the output connector 6 is installed on the mounting base 12, the A joint inlet and outlet 13 is opened on the side plate 4, and a rotating shaft 14 is installed on the outer side of the side plate 4 at the upper side of the joint inlet and outlet 13, and a dustproof door 15 is hinged on the rotating shaft 14, and a dustproof door 15 is hinged on the dustproof door 15. Open the wire slot 16;

The circuit board 1 is provided with a plurality of through holes, the through holes are covered with a heat pipe 17, the heat pipe 17 is welded on the circuit board 1, and a heat conduction sleeve 19 is welded on the lower side of the top plate 2;

The heat pipe 17 is close to the transformer and the resistor;

The heat pipe 17 is a hollow structure, and the lower port of the heat pipe 17 is trumpet-shaped;

The heat conduction sleeve 19 is also a hollow structure, and the upper end of the heat conduction sleeve 19 is welded to the top plate 2, and the heat conduction sleeve 19 is hollow inside and communicates with the heat dissipation through hole 10 on the top plate 2;

The outer diameter of the upper port of the heat pipe 17 is slightly smaller than the inner diameter of the lower end of the heat pipe 19;

The bottom of the bottom plate 3 is fixedly installed with several mounting brackets 20 on the periphery of the vent;

The pushing block 18 is provided with several rubber protruding strips to effectively increase the frictional force;

In the process of using the utility model, the push block 18 is pushed toward the side plate 4, the mounting base 12 moves along the slide rail 11 to the joint inlet and outlet 13, and the dustproof door 15, after the output connector 6 is installed, push the push block 18 back to its original position, and the wiring can be placed in the wire release slot 16 of the dust-proof door 15, which can effectively prevent dust from entering. And the installation is simple and convenient, saving time and labor. The heat dissipation fan 7 sucks air from the vent to cool the circuit board 1, and the heat pipe 17 on the circuit board 1 is trumpet-shaped due to the lower port. When blowing air, the heat conduction pipe 17 enters the heat conduction sleeve 19, and then is discharged from the heat conduction sleeve 19 through the heat dissipation through hole 10. The heat conduction sleeve 19 is welded to the top plate 2, so the heat conduction sleeve 19 is welded to the top plate 2. The heat on the heat conduction sleeve 19 is also dissipated by the heat dissipation fins 9, and the lower end of the heat conduction sleeve 19 is fitted with the upper end of the heat conduction pipe 17, which also plays a role in positioning the circuit board 1. On the basis of not adding parts, the efficiency of heat dissipation is improved, and the installation bracket 20 can install the switching power supply vertically or horizontally, which can better adapt to various working environments.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. An output switching power supply, comprising a housing and a circuit board, characterized in that: the housing is a cuboid, and the inside of the housing is hollow, and the housing includes a top plate and a bottom plate, between the top plate and the bottom plate A side plate is installed, and a guide groove is fixed on the inner wall of the side plate, and a circuit board is installed in the guide groove, and a resistor, a capacitor and a transformer are installed on the circuit board, and the circuit board is connected with an output through a wire. A heat dissipation fan is arranged on the lower side of the circuit board inside the housing, an air vent is opened on the lower side of the heat dissipation fan on the bottom plate, and a dust-proof net is installed on the air vent, and the upper surface of the top plate A number of heat dissipation fins are provided, and a number of heat dissipation through holes are provided on the top plate between the heat dissipation fins. A slide rail is fixedly installed on the lower side of the circuit board inside the housing, and the slide rail is movable. A mounting seat is installed, and a push rod is fixedly connected to the bottom of the mounting seat, and the push rod extends downward through the bottom plate and the dust-proof net, and a push block is fixedly installed at the bottom end of the push rod, and the output The joint is installed on the mounting base, the side plate is provided with a joint inlet and outlet, and a rotating shaft is installed on the outer side of the side plate on the upper side of the joint inlet and outlet, and a dust-proof door is hinged on the rotating shaft. There is a wire slot on the dust door. 2. An output switching power supply as claimed in claim 1, characterized in that: said circuit board is provided with a plurality of through holes, said through holes are covered with heat pipes, and said heat pipes are welded on said circuit board On the lower side of the top plate, a thermal sleeve is welded. 3. The output switching power supply according to claim 2, wherein the heat pipe is close to the transformer and the resistor. 4 . The output switching power supply according to claim 3 , wherein the heat pipe is a hollow structure, and the lower port of the heat pipe is trumpet-shaped. 5. An output switching power supply according to claim 2, characterized in that: the heat conduction sleeve is also a hollow structure, and the upper end of the heat conduction sleeve is welded to the top plate, and the inside of the heat conduction sleeve is hollow The heat dissipation through holes are communicated on the top plate. 6. The output switching power supply according to claim 2, wherein the outer diameter of the upper port of the heat pipe is slightly smaller than the inner diameter of the lower end of the heat pipe. 7 . The output switching power supply according to claim 1 , characterized in that: the bottom of the bottom plate is fixedly installed with several mounting seats on the outer periphery of the air vent. 7 . 8. An output switching power supply as claimed in claim 1, characterized in that: said pushing block is provided with several rubber protrusions.