CN108683325B

CN108683325B - Switching power supply with sound-proof housing

Info

Publication number: CN108683325B
Application number: CN201810616504.4A
Authority: CN
Inventors: 从云敬
Original assignee: Individual
Current assignee: Shenzhen Ouyang Power Technology Co ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2020-03-24
Anticipated expiration: 2038-06-15
Also published as: CN108683325A

Abstract

The invention provides a switching power supply with a sound-proof housing, which comprises a first bolt hole, a dovetail groove, V-shaped plates, the sound-proof housing, a fan and air vents, wherein the sound-proof housing is arranged in a switching power supply main body, the two V-shaped plates are respectively processed at the front end and the rear end of the sound-proof housing, the dovetail groove is respectively arranged at the outer sides of the V-shaped plates and is respectively arranged on the switching power supply main body, the fan is arranged at the left part of the upper end surface in the sound-proof housing, the three air vents are processed at the right end surface of the sound-proof housing, and the first bolt hole is processed at the lower part of the outer side surface of the V-shaped plate.

Description

Switching power supply with sound-proof housing

Technical Field

The invention relates to a switching power supply with a sound-proof shield, belonging to the field of power supply equipment.

Background

The switching power supply is a power supply which utilizes the modern power electronic technology to control the time ratio of switching-on and switching-off of a switching tube and maintain stable output voltage, the switching power supply is generally composed of a Pulse Width Modulation (PWM) control IC and an MOSFET, and when the switching power supply works, the self vibration of a capacitor or an inductor is caused by high-frequency voltage or high-frequency current passing through the capacitor or the inductor, so that the frequency on electrons is converted into the frequency on sound, thereby generating noise.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a switching power supply with a sound-proof shield to solve the problems in the background art, and the switching power supply is convenient to use and operate, has a sound-proof function and is high in reliability.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a switching power supply with sound-proof housing, includes switching power supply main part and noise insulation, the noise insulation assembly is inside switching power supply main part, noise insulation includes bolt hole one, V template, sound-proof housing, fan and blow vent, the sound-proof housing is installed inside switching power supply main part, two V templates have all been processed at both ends around the sound-proof housing, the V template outside all is provided with the dovetail, the dovetail is all seted up in switching power supply main part, the fan is installed to the up end left part in the sound-proof housing, sound-proof housing right-hand member face processing has three blow vent, bolt hole one has all been processed to V template lateral surface lower part.

Furthermore, bolt holes II are formed in the outer sides of the bolt holes I and are respectively arranged on the front end face and the rear end face of the switching power supply main body, and rubber rings are attached to the inner walls of the bolt holes I and the bolt holes II.

Further, the air vent size is less, and is provided with the filter screen in the air vent to make the air vent play the function of ventilating and not have the dust and enter into inside the switching power supply main part.

Furthermore, a bolt is arranged in the first bolt hole, anti-skid lines are processed on the outer annular side face of the bolt, the bolt penetrates through the first bolt hole and the second bolt hole, and the design can prevent the soundproof cover from sliding out of the switch power supply main body.

Furthermore, the inner end face of the sound-proof cover is attached with the conductive cloth, the design can reduce the interference of high-frequency signals of the switch power supply to external signals, and the EMI performance of the switch power supply main body is further improved.

Furthermore, the fan is a brushless mute type fan special for the electronic equipment, the fan is connected with an external power supply through a wire, and a switch is arranged on the wire, so that the electric connection between the fan and the external power supply is realized.

The invention has the beneficial effects that: according to the switching power supply with the sound-proof cover, the first bolt hole, the dovetail groove, the V-shaped plate, the sound-proof cover, the fan and the air vent are added, so that the function of reducing the working noise of the high-power switching power supply is realized, and the problems that the existing high-power switching power supply generates larger noise during working, does not have a silencing device and affects the use feeling are solved.

The design has the advantages that the sound-proof cover is more stable due to the addition of the bolt holes II, the dustproof function is realized due to the addition of the filter screen, the design is convenient for fixing the sound-proof cover due to the addition of the bolts, and the electromagnetic shielding function is realized due to the addition of the conductive cloth.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of a switching power supply with a sound enclosure according to the present invention;

FIG. 2 is a schematic structural view of a noise insulation device in a switching power supply with a noise insulation cover according to the present invention;

in the figure: 1-switch power supply main body, 2-sound insulation device, 21-bolt hole, 22-dovetail groove, 23-V type plate, 24-sound insulation cover, 25-fan and 26-air vent.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a switching power supply with a soundproof cover comprises a switching power supply main body 1 and a soundproof device 2, wherein the soundproof device 2 is assembled inside the switching power supply main body 1.

Noise insulation 2 includes bolt hole one 21, V template 23, sound-proof housing 24, fan 25 and blow vent 26, sound-proof housing 24 is installed inside switching power supply main part 1, both ends have all been processed two V templates 23 around sound-proof housing 24, the V template 23 outside all is provided with dovetail 22, dovetail 22 is all seted up on switching power supply main part 1, fan 25 is installed to the up end left part in the sound-

proof housing

24, 24 right-hand member of sound-proof housing face processing has three

blow vent

26, 23 lateral surface lower parts of V template have all been processed bolt hole one 21, this design has realized reducing high-power switching power supply noise's function.

The outer sides of the first bolt holes 21 are respectively provided with a second bolt hole, the second bolt holes are respectively arranged on the front end face and the rear end face of the switching power supply main body 1, rubber rings are attached to the inner walls of the first bolt holes 21 and the second bolt holes, the design can prevent the bolts from falling off from the inside of the first bolt holes 21, the size of the vent 26 is smaller, a filter screen is arranged in the vent 26, the design can prevent dust from entering the inside of the switching power supply main body 1 while the vent 26 has a ventilation function, the bolts are arranged in the first bolt holes 21, anti-slip lines are processed on the outer annular side faces of the bolts, the bolts penetrate through the first bolt holes 21 and the second bolt holes, the design can prevent the soundproof cover 24 from sliding out of the switching power supply main body 1, and conductive cloth is attached to the inner end face of the soundproof cover 24, so that the interference of high-frequency signals, the fan 25 is a brushless mute type fan 25 special for the electronic equipment, the fan 25 is connected with an external power supply through a lead, and a switch is arranged on the lead, so that the design realizes the electrical connection of the fan 25 and the external power supply.

The specific implementation mode is as follows: when the switch power supply is used, a user firstly installs the sound-proof shield 24 in the switch power supply main body 1, firstly holds the sound-proof shield 24 and moves downwards along the dovetail groove 22, the sound-proof shield 24 moves downwards to drive the V-shaped plate 23 to move downwards, when the V-shaped plate 23 moves downwards to enable the lower end face of the V-shaped plate to be in contact with the switch power supply main body 1, the user stops moving the sound-proof shield 24, then holds the bolt and inserts and fixes the bolt inwards along the bolt hole I21, so that the sound-proof shield 24 is fixed, then the user connects the wiring terminal at the left end of the switch power supply main body 1 into the corresponding conducting wire to realize the electrical connection of the switch power supply main body 1, then the switch power supply main body 1 works to generate corresponding voltage signals and generate noise, then the user starts the fan 25, and the fan 25 works to dissipate heat of the circuit board and electronic components in, then, the soundproof cover 24 shields noise generated by the operation of the switching power supply main body 1 and noise generated by the operation of the fan 25, thereby performing soundproof and heat radiation functions.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a switching power supply with sound-proof housing, includes switching power supply main part (1) and noise insulation (2), its characterized in that: the sound insulation device (2) is assembled inside the switching power supply main body (1);

the sound insulation device (2) comprises a first bolt hole (21), a V-shaped plate (23), a sound insulation cover (24), a fan (25) and vent holes (26), the sound insulation cover (24) is installed inside the switching power supply main body (1), the two V-shaped plates (23) are processed at the front end and the rear end of the sound insulation cover (24), dovetail grooves (22) are formed in the outer sides of the V-shaped plates (23), the dovetail grooves (22) are formed in the switching power supply main body (1), the fan (25) is installed on the left portion of the upper end face in the sound insulation cover (24), three vent holes (26) are processed on the right end face of the sound insulation cover (24), a first bolt hole (21) is processed on the lower portion of the outer side face of the V-shaped plate (23), a second bolt hole is formed in the outer side of the first bolt hole (21), the second bolt holes are respectively formed in the front end face and the rear end face of the switching power supply main body (1), the anti-slip switch power supply is characterized in that a bolt is arranged in the first bolt hole (21), anti-slip lines are processed on the outer annular side face of the bolt, the bolt penetrates through the first bolt hole (21) and the second bolt hole, and the design can prevent the soundproof cover (24) from slipping out of the switch power supply main body (1).

2. The switching power supply with noise enclosure of claim 1, wherein: the size of the vent hole (26) is small, and a filter screen is arranged in the vent hole (26), so that the vent hole (26) has a ventilation function and does not allow dust to enter the switching power supply main body (1).

3. The switching power supply with noise enclosure of claim 1, wherein: the inner end face of the sound-proof cover (24) is attached with the conductive cloth, interference of high-frequency signals of the switch power supply to external signals can be reduced through the design, and the EMI performance of the switch power supply main body (1) is further improved.

4. The switching power supply with noise enclosure of claim 1, wherein: the fan (25) is a brushless mute type fan (25) special for the electronic equipment, the fan (25) is connected with an external power supply through a wire, and a switch is arranged on the wire, so that the electric connection between the fan (25) and the external power supply is realized.