CN209787051U - High-frequency rectifying device for avoiding short circuit ignition phenomenon - Google Patents

Abstract

The utility model provides a avoid high frequency fairing of phenomenon is struck sparks to short circuit, all set up the round hole and make progress open-ended box including the both sides face, the bottom surface inner wall fixed mounting high frequency switch main part of box, the top of box is equipped with the case lid of T type, circular recess is seted up to the top surface of case lid, circular groove is thoroughly seted up to circular recess's bottom surface inner wall, circular groove intermediate position that passes through is equipped with the fixed block, the fixed block passes through connecting rod fixed connection with circular groove's inner wall, the recess of opening decurrent is seted up to the bottom surface inner wall of fixed block, fixed mounting pivot motor down in the recess, the. The use of this device, because the gas that gets into in the box is the gas after being dried, consequently satisfying under the radiating prerequisite of high frequency switch main part, can effectually prevent that the contravariant high-voltage area short circuit from lighting a fire, and then prevent because the contravariant high-voltage area short circuit from lighting a fire the incident that causes.

Description

High-frequency rectifying device for avoiding short circuit ignition phenomenon

Technical Field

The utility model belongs to high frequency switching power supply field, specifically speaking are high frequency rectifier unit who avoids short circuit phenomenon of striking sparks.

Background

With the development of society and the advancement of technology, high frequency switching power supplies are widely used in industrial equipment, power systems,

In the fields of transportation, military equipment and the like, the device has the functions of converting alternating current commercial power into stable direct current and supplying the converted direct current to a load. Generally, the working environment temperature of the high-frequency switching power supply is high, the working environment is complex, the heat dissipation performance of the high-frequency switching power supply is very important, and the heat dissipation device generally comprises three types, namely air cooling, metal heat conduction and water cooling. The radiating effect of air cooling radiation is most obvious, wherein, the principle of air cooling is to blow the high frequency switch with the outside air through the fan on, and then the air flow near the high frequency switch is accelerated, and the heat on the high frequency switch is then taken away to the air that flows, but when the outside air is comparatively moist, contains steam in the air that the air cooling brought, then causes contravariant high-voltage area short circuit to strike fire very easily, causes the emergence of incident.

SUMMERY OF THE UTILITY MODEL

The utility model provides a avoid high frequency fairing of short circuit phenomenon of striking sparks for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

A high-frequency rectifying device for avoiding a short circuit ignition phenomenon comprises a box body, wherein two side faces of the box body are provided with round holes and are upwards opened, a high-frequency switch main body is fixedly installed on the inner wall of the bottom face of the box body, a T-shaped box cover is arranged above the box body, the top face of the box cover is provided with a round groove, a round through groove is formed in the inner wall of the bottom face of the round groove, a fixed block is arranged in the middle of the round through groove, the fixed block is fixedly connected with the inner wall of the round through groove through a connecting rod, a groove with a downward opening is formed in the inner wall of the bottom face of; the round box is characterized in that a round plate-shaped box is arranged in the round groove, a box opening is formed in the middle of the top surface of the box, a box cover is covered above the box opening, a plurality of round holes are formed in the top surface and the bottom surface of the box, a round silica gel drying agent is stored in the box, the diameter of each round hole is smaller than that of each silica gel drying agent, a storage battery and a control switch are fixedly installed on the top surface of the box cover, the storage battery provides a power supply for the motor, and the.

According to the high-frequency rectifying device for avoiding the short circuit ignition phenomenon, the two sides of the inner wall of the bottom surface of the box body are vertically and fixedly provided with the partition plates with the round holes, the high-frequency switch main body is positioned between the two partition plates, the top surfaces of the partition plates and the top surface of the box body are positioned on the same horizontal line, round silica gel drying agents are placed between the partition plates and the corresponding side surfaces of the box body, and the diameters of the silica gel drying agents are larger than the diameters of the round holes in the box body and the partition plates.

The high-frequency rectifying device for avoiding the short circuit sparking phenomenon is characterized in that the motor adopts a brushless motor.

According to the high-frequency rectifying device for avoiding the short circuit ignition phenomenon, the box body and the box cover are both made of aluminum alloy materials.

The high-frequency rectifying device for avoiding the short circuit ignition phenomenon is characterized in that the storage battery adopts a lithium battery.

According to the high-frequency rectifying device for avoiding the short circuit ignition phenomenon, the fan blades are made of plastics.

The utility model has the advantages that: when the device is used, the box cover is covered on the box body. Wherein, every interval a period of time, the workman opens the motor through control switch, the rotation of motor shaft drives the rotation of flabellum, the rotation of flabellum makes the outside air follow the downthehole circular through the round hole entering circular groove behind the silica gel drier in the box on the box, wherein the steam in the air is absorbed by the silica gel drier in the box, the air after being dried is in the circular groove entering box that passes through, the air in the box then takes the heat that the high frequency switch main part gived off to flow from the round hole of box side, and then the high frequency switch main part obtains the heat dissipation, simultaneously because the air in the entering box is by the air after the drying, consequently contravariant high-voltage area short circuit is struck sparks. When the silica gel desiccant is used for a period, the box is taken out of the circular groove, the box cover is opened, the silica gel desiccant is poured out of the box opening, and new silica gel desiccant is added, so that the silica gel desiccant can be replaced. The use of this device, because the gas that gets into in the box is the gas after being dried, consequently satisfying under the radiating prerequisite of high frequency switch main part, can effectually prevent that the contravariant high-voltage area short circuit from lighting a fire, and then prevent because the contravariant high-voltage area short circuit from lighting a fire the incident that causes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is a view in the direction A of FIG. 1; fig. 3 is an enlarged view of a portion I of fig. 1.

Detailed Description

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A high-frequency rectifying device for avoiding short circuit ignition phenomena comprises a box body 1 with round holes on two side faces and an upward opening, a high-frequency switch main body 2 is fixedly installed on the inner wall of the bottom face of the box body 1, a T-shaped box cover 3 is arranged above the box body 1, a round groove 4 is formed in the top face of the box cover 3, a round through groove 5 is formed in the inner wall of the bottom face of the round groove 4, a fixed block 6 is arranged in the middle of the round through groove 5, the fixed block 6 is fixedly connected with the inner wall of the round through groove 5 through a connecting rod 7, a groove 8 with a downward opening is formed in the inner wall of the bottom face of the fixed block 6, a motor 9 with a downward rotating shaft is fixedly; a circular plate-shaped box 11 is arranged in the circular groove 4, a box opening 12 is arranged in the middle of the top surface of the box 11, a box cover 13 is covered above the box opening, a plurality of round holes 14 are formed in the top surface and the bottom surface of the box 11, a circular silica gel drying agent is stored in the box 11, the diameter of each round hole 14 is smaller than that of each silica gel drying agent, a storage battery 16 and a control switch 17 are fixedly arranged on the top surface of the box cover 3, the storage battery 16 provides a power supply for the motor 9, and the control switch 17 controls the motor 9 to be. When the device is used, the box cover 3 is covered on the box body 1. Wherein, at interval, the workman opens motor 9 through control switch 17, the rotation of motor 9 pivot drives the rotation of flabellum 10, flabellum 10's rotation makes the outside air follow round hole 14 on the box 11 in through the circular through groove 5 that gets into behind the silica gel drier in the box 11, wherein the steam in the air is absorbed by the silica gel drier in the box 11, the air after being dried gets into in the box 1 through circular through groove 5, the air in the box 1 then takes the heat that high frequency switch main part 2 gived off to flow out from the round hole of box 1 side, and then high frequency switch main part 2 obtains the heat dissipation, simultaneously because the air that gets into in the box 1 is the air after being dried, consequently the contravariant high-voltage area short circuit is struck sparks can not appear. When the silica gel desiccant is used for a period, the box 11 is taken out of the circular groove 4, the box cover 13 is opened, the silica gel desiccant is poured out of the box opening 12, and new silica gel desiccant is added, so that the silica gel desiccant is replaced. The use of this device, because the gas that gets into in the box 1 is the gas after being dried, consequently satisfying under the radiating prerequisite of high frequency switch main part 2, can effectually prevent that the contravariant high-voltage area short circuit from lighting a fire, and then prevent because the contravariant high-voltage area short circuit from lighting a fire and the incident that causes.

Particularly, inside for preventing that external humid gas from getting into box 1 through the round hole on the box 1 side, this embodiment the equal vertical fixed mounting in both sides of box 1 bottom surface inner wall open the baffle 15 that has the round hole, high frequency switch main part 2 is located between two baffles 15, the top surface of baffle 15 and the top surface of box 1 are located same water flat line, all put circular shape silica gel drier between baffle 15 and the corresponding box 1 side, silica gel drier diameter is greater than the diameter of round hole on box 1 and the baffle 15. The silica gel drier between 15 and the box 1 side of baffle can effectual absorption moisture in the humid air, and then makes the air that gets into box 1 inside on the round hole of box 1 side all by the drying to can effectually prevent that high frequency switch main part 2 from weing.

Specifically, in order to reduce the noise generated by the motor operation, the motor 9 of the present embodiment is a brushless motor. The brushless motor can generate very small working noise during working, and the motor 9 can reduce the noise generated by the working of the motor 9 by adopting the brushless motor.

Further, in order to increase the heat dissipation of the high-frequency switch main body 2, the box body 1 and the box cover 3 are both made of aluminum alloy materials. The aluminum alloy material has good heat-conducting property, so that the box body 1 and the box cover 3 are both made of the aluminum alloy material and can increase the heat dissipation of the high-frequency switch main body 2.

Further, as shown in fig. 1, the battery 16 according to the present embodiment is a lithium battery. Compared with a common lead-acid storage battery, the lithium battery with the same volume can store more electric quantity than the lead-acid storage battery, and further can increase the working time of the motor 9.

Furthermore, in order to reduce the working load of the motor 9, the fan blades of the present embodiment are made of plastic. The blades made of plastic are lighter than the blades made of metal materials, so that the load on the motor 9 when the motor 9 drives the blades to rotate can be reduced, and the service life of the motor 9 is prolonged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (6)

1. The utility model provides a avoid high frequency fairing of short circuit phenomenon of striking sparks which characterized in that: the high-frequency switch box comprises a box body (1) with round holes formed in two side faces and an upward opening, a high-frequency switch main body (2) is fixedly installed on the inner wall of the bottom face of the box body (1), a T-shaped box cover (3) is arranged above the box body (1), a circular groove (4) is formed in the top face of the box cover (3), a circular through groove (5) is formed in the inner wall of the bottom face of the circular groove (4), a fixed block (6) is arranged in the middle of the circular through groove (5), the fixed block (6) is fixedly connected with the inner wall of the circular through groove (5) through a connecting rod (7), a groove (8) with a downward opening is formed in the inner wall of the bottom face of the fixed block (6), a motor (9) with a; be equipped with box (11) of plectane shape in circular recess (4), the top surface intermediate position of box (11) is box mouth (12), the top of box mouth is covered with lid (13), several round hole (14) are all seted up to the top surface and the bottom surface of box (11), the circular shape silica gel drier has been put in box (11), the diameter of round hole (14) is less than the diameter of silica gel drier, case lid (3) top surface fixed mounting battery (16) and control switch (17), battery (16) provide the power for motor (9), control switch (17) control opening of motor (9).

2. A high-frequency rectifying apparatus for preventing a short-circuit sparking phenomenon in accordance with claim 1, wherein: the equal vertical fixed mounting in both sides of box (1) bottom surface inner wall open baffle (15) that have the round hole, high frequency switch main part (2) are located between two baffle (15), the top surface of baffle (15) and the top surface of box (1) are located same water flat line, all put circular shape silica gel drier between baffle (15) and corresponding box (1) side, silica gel drier diameter is greater than the diameter of round hole on box (1) and baffle (15).

3. A high-frequency rectifying apparatus for preventing a short-circuit sparking phenomenon in accordance with claim 1, wherein: the motor (9) adopts a brushless motor.

4. A high-frequency rectifying apparatus for preventing a short-circuit sparking phenomenon in accordance with claim 1, wherein: the box body (1) and the box cover (3) are both made of aluminum alloy materials.

5. A high-frequency rectifying apparatus for preventing a short-circuit sparking phenomenon in accordance with claim 1, wherein: the storage battery (16) adopts a lithium battery.

6. A high-frequency rectifying apparatus for preventing a short-circuit sparking phenomenon in accordance with claim 1, wherein: the fan blades are made of plastics.