CN218829603U

CN218829603U - Output circuit protection device of switching power supply

Info

Publication number: CN218829603U
Application number: CN202223335500.XU
Authority: CN
Inventors: 谢院波; 刘合法; 庞卫华
Original assignee: Huangshi Lianming Power Supply Co ltd
Current assignee: Huangshi Lianming Power Supply Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-04-07
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to the technical field of switching power supply, a switching power supply output circuit protection device is disclosed, which comprises a protection box, wherein the inner wall of the bottom of the protection box is slidably connected with a mounting plate, the top of the mounting plate is provided with an overcurrent protector body, the outer wall of one side of the mounting plate is fixedly connected with a cover plate, and two sides of the protection box are provided with symmetrically arranged sliding holes; the utility model discloses demolish two positioning screw from two locating hole internal rotations, after demolising, rectangle handle pulling apron lateral shifting through setting up, two guide bars slide in two sliding holes simultaneously, the apron drives the mounting panel and moves to the outside of guard box with the overcurrent protector body, until the overcurrent protector body is located the outside of guard box completely, thereby be convenient for the staff carries out periodic maintenance to the overcurrent protector body, with the comparatively stable operating condition of assurance overcurrent protector body can long-term maintenance, and is comparatively practical, and is suitable for extensively promoting and using.

Description

Output circuit protection device of switching power supply

Technical Field

The utility model belongs to the technical field of switching power supply, specifically speaking relates to a switching power supply's output circuit protection device.

Background

A switching mode power supply, also known as a switching power supply or a switching converter, is a high-frequency power conversion device, which is a kind of power supply, and functions to convert a level voltage into a voltage or a current required by a user terminal through different types of architectures, and when protecting an output circuit of the switching power supply, an overcurrent protector is usually needed for protection.

Through retrieving CN215682125U discloses switching power supply output overcurrent protection device, including the protecting crust, the top fixed mounting of protecting crust has the frame plate, and the lower surface mounting of frame plate has overcurrent protector, and fixed mounting has the terminal on the overcurrent protector, and two dust collecting box are installed to the block in the protecting crust, and the top fixed mounting of protecting crust has a plurality of fans, the utility model has the advantages of it is following: this device is provided with the protecting crust, will overflow the protector and install inside the protecting crust, can get into the dust collection box with the heat that overflow the protector gived off through first filter plate, will get into the steam in the dust collection box through the fan and blow off from second filter plate department, has guaranteed overflow protector's heat dissipation, can reduce the amount of dust adhesion to overflow the protector through first filter plate and second filter plate, avoids a large amount of dust adhesion to influence its performance on overflow the protector.

However, the inventor finds that the technical scheme still has at least the following defects: among the above-mentioned device, through installing overcurrent protector in the protecting crust inboard comes to play the effect of protection to overcurrent protector to can guarantee overcurrent protector's radiating effect and dustproof effect, nevertheless after overcurrent protector works for a long time, be difficult to dismantle overcurrent protector from the protective housing and get off to overhaul the maintenance, be unfavorable for the long-term operating condition who keeps stable of overcurrent protector.

In view of this, the present invention is provided.

Disclosure of Invention

In order to solve the technical problem, the utility model adopts the following basic concept:

an output circuit protection device of a switching power supply comprises a protection box, wherein the inner wall of the bottom of the protection box is connected with a mounting plate in a sliding manner, an overcurrent protector body is mounted at the top of the mounting plate, the outer wall of one side of the mounting plate is fixedly connected with a cover plate, sliding holes which are symmetrically arranged are formed in two sides of the protection box, the outer wall of one side of the cover plate is fixedly connected with guide rods which are symmetrically arranged, the two guide rods are respectively connected onto the inner walls of the two sliding holes in a sliding manner, and the outer wall of one side of the cover plate is fixedly connected with a rectangular handle;

the outer wall of one side of the protection box is fixedly connected with threaded sleeves which are symmetrically arranged, the threaded sleeves are respectively located on one side of two sliding holes, the inner walls of the threaded sleeves are connected with positioning screws in a threaded mode, the positioning holes are formed in one ends of the guide rods, and the positioning screws are respectively matched with the two positioning holes.

As an embodiment of the present invention, the threading hole has been seted up to guard box one side, the threading hole is located overcurrent protector body one side.

As an optimized embodiment of the present invention, the top of the protection box is provided with air vents distributed at equal intervals.

As a preferred embodiment of the utility model, the guard box inboard is provided with filters the otter board, it is located ventilative mouthful below to filter the otter board, it is located overcurrent protector body top to filter the otter board.

As an optimized embodiment of the utility model, the spacing groove has been seted up to guard box one side inner wall, it is inboard that filter plate one side is located the spacing groove.

As a preferred embodiment of the utility model, a rectangular opening is provided on one side of the protection box, and a mounting seat is fixedly connected to one side of the filter screen plate and is positioned inside the rectangular opening.

As a preferred embodiment of the present invention, the outer wall of one side of the mounting seat is fixedly connected with a push-pull plate, the push-pull plate contacts with the outer wall of one side of the protection box, and the outer wall of one side of the push-pull plate is fixedly connected with a circular handle.

Compared with the prior art, the utility model following beneficial effect has:

the utility model discloses, rectangle expansion gap through setting up, the mount pad, spacing groove and circular handle, be convenient for after filter plate uses for a long time, will filter plate and dismantle from the guard box and clear up or more renew the filter plate, when needs overhaul the protector body and maintain, demolish two positioning screw from two locating hole internal rotations, after demolising, rectangle handle pulling apron lateral shifting through setting up, two guide bars slide in two sliding holes simultaneously, the apron drives the mounting panel and moves to the outside of guard box with the overcurrent protector body, it is located the outside of guard box completely to reach the overcurrent protector body, thereby be convenient for the staff carries out periodic maintenance to the overcurrent protector body, with guarantee that the overcurrent protector body can be long-term keep comparatively stable operating condition.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial top cross-sectional structure of the protection box of the present invention;

fig. 3 is a schematic view of the partial top sectional structure of the protection box of the present invention.

In the figure: 1. a protection box; 2. mounting a plate; 3. an overcurrent protector body; 4. a cover plate; 5. a rectangular handle; 6. a slide hole; 7. a guide bar; 8. a ventilation opening; 9. a filter screen plate; 10. a push-pull plate; 11. a round handle; 12. a threading hole; 13. a threaded sleeve; 14. positioning a screw rod; 15. positioning holes; 16. a rectangular movable opening; 17. a mounting seat; 18. a limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.

As shown in fig. 1 to 3

An output circuit protection device of a switching power supply comprises a protection box 1, wherein the protection box can play a role in protecting an overcurrent protector body 3, the inner wall of the bottom of the protection box 1 is connected with a mounting plate 2 in a sliding manner, the overcurrent protector body 3 is mounted at the top of the mounting plate 2 and is used for protecting the output circuit of the switching power supply, so that the output circuit of the switching power supply can stably work, a cover plate 4 is fixedly connected to the outer wall of one side of the mounting plate 2, sliding holes 6 which are symmetrically arranged are formed in two sides of the protection box 1, guide rods 7 which are symmetrically arranged are fixedly connected to the outer wall of one side of the cover plate 4, the two guide rods 7 are respectively connected to the inner walls of the two sliding holes 6 in a sliding manner, and a rectangular handle 5 is fixedly connected to the outer wall of one side of the cover plate 4;

threaded sleeve 13 that guard box 1 one side outer wall fixedly connected with symmetry set up, two threaded sleeve 13 are located two sliding hole 6 one sides respectively, two equal spiro couplings in threaded sleeve 13 inner wall have positioning screw 14, locating hole 15 has all been seted up to two guide bar 7 one ends, two positioning screw 14 respectively with two locating hole 15 looks adaptations, demolish two positioning screw 14 from two locating hole 15 internal rotations, after demolising, 5 pulling apron 4 lateral shifting of rectangle handle through setting up, two guide bar 7 slide in two sliding hole 6 simultaneously, apron 4 drives mounting panel 2 and overcurrent protector body 3 and removes to the outside of guard box 1, until overcurrent protector body 3 is located the outside of guard box 1 completely, thereby be convenient for the staff to carry out periodic maintenance to overcurrent protector body 3, in order to guarantee that overcurrent protector body 3 can keep comparatively stable operating condition.

In a specific embodiment, a filter screen plate 9 is arranged on the inner side of the protection box 1, the filter screen plate 9 is located below the ventilation port 8, the filter screen plate 9 is located above the overcurrent protector body 3, and can prevent pollutants such as dust in the outside air from drifting into the protection box 1 during ventilation, so that the phenomenon that the pollutants such as dust adhere to the overcurrent protector body 3 to affect the performance of the pollutants is avoided, a limiting groove 18 is formed in the inner wall of one side of the protection box 1, one side of the filter screen plate 9 is located inside the limiting groove 18, a rectangular movable port 16 is formed in one side of the protection box 1, an installation seat 17 is fixedly connected to one side of the filter screen plate 9, the installation seat 17 is located inside the rectangular movable port 16, a push-pull plate 10 is fixedly connected to the outer wall of one side of the installation seat 17, the push-pull plate 10 is in contact with the outer wall of one side of the protection box 1, and a circular handle 11 is fixedly connected to the outer wall of one side of the push-pull plate 10, so that the filter screen plate 9 can be detached from the protection box 1 to clean or replace the filter screen plate 9 after the filter screen plate is used for a long time.

Further, threading hole 12 has been seted up to protection box 1 one side, and threading hole 12 is located overcurrent protector body 3 one side for the wire is connected with overcurrent protector body 3, and the ventilative mouth 8 that the equidistance distributes is seted up at protection box 1 top, makes the effect that has ventilation in protection box 1, and overcurrent protector body 3 can obtain giving off at the heat that the during operation produced.

The implementation principle of the output circuit protection device of the switching power supply of the embodiment is as follows: through the overcurrent protector body 3 that sets up, an output circuit for protecting switching power supply, make switching power supply's output circuit can the steady operation, protection box 1 through the setting, can play the effect of protection to overcurrent protector body 3, ventilative mouthful 8 through the setting, make the effect that has ventilation in protection box 1, overcurrent protector body 3 can obtain giving off at the heat that the during operation produced, filter plate 9 through the setting, can avoid pollutants such as dust in the outside air to waft into protection box 1 in when ventilating, thereby avoided pollutant adhesion such as dust to influence its performance on overcurrent protector body 3, rectangle expansion gap 16 through the setting, mount pad 17, spacing groove 18 and circular handle 11, after filter plate 9 uses for a long time, dismantle filter plate 9 from protection box 1 and clear up or more new filter plate 9, when needing to overhaul the maintenance to overcurrent protector body 3, demolish two positioning screw 14 from two locating hole 15 internal rotation, after demolising, through the rectangle handle 5 pulling apron 4 lateral shifting that sets up, two direction apron 7 are at the internal side of protection box 3 and slide when the maintenance personnel are located overcurrent protector body 3 and the maintenance of overcurrent protector body 3 outside the maintenance box, thereby the steady operation of overcurrent protector body is carried out the maintenance of overcurrent protector body 3 and the maintenance personnel is carried out to overcurrent protector 3, thereby, the maintenance of the maintenance is convenient for overcurrent protector body 3, the maintenance, thereby the maintenance of overcurrent protector body is located the stable working box 1 outside of the regular maintenance of overcurrent protector 3.

Claims

1. The output circuit protection device of the switching power supply comprises a protection box (1) and is characterized in that the inner wall of the bottom of the protection box (1) is connected with a mounting plate (2) in a sliding mode, an overcurrent protector body (3) is mounted at the top of the mounting plate (2), a cover plate (4) is fixedly connected to the outer wall of one side of the mounting plate (2), sliding holes (6) which are symmetrically arranged are formed in two sides of the protection box (1), guide rods (7) which are symmetrically arranged are fixedly connected to the outer wall of one side of the cover plate (4), the two guide rods (7) are respectively connected to the inner walls of the two sliding holes (6) in a sliding mode, and a rectangular handle (5) is fixedly connected to the outer wall of one side of the cover plate (4);

the utility model discloses a safety protection box, including guard box (1) one side outer wall fixedly connected with threaded sleeve (13) that the symmetry set up, two threaded sleeve (13) are located two sliding hole (6) one side respectively, two the equal spiro union of threaded sleeve (13) inner wall has positioning screw (14), two positioning hole (15) have all been seted up to guide bar (7) one end, two positioning screw (14) respectively with two positioning hole (15) looks adaptations.

2. The output circuit protection device of the switching power supply according to claim 1, wherein a threading hole (12) is formed in one side of the protection box (1), and the threading hole (12) is located in one side of the overcurrent protector body (3).

3. The output circuit protection device of the switching power supply according to claim 1, wherein the top of the protection box (1) is provided with air vents (8) distributed at equal intervals.

4. The output circuit protection device of the switching power supply according to claim 3, wherein a filter screen plate (9) is arranged inside the protection box (1), the filter screen plate (9) is located below the ventilation port (8), and the filter screen plate (9) is located above the overcurrent protector body (3).

5. The protection device for the output circuit of the switching power supply according to claim 4, wherein a limiting groove (18) is formed in an inner wall of one side of the protection box (1), and one side of the filter screen plate (9) is located inside the limiting groove (18).

6. The protection device for the output circuit of the switching power supply is characterized in that a rectangular movable opening (16) is formed in one side of the protection box (1), an installation seat (17) is fixedly connected to one side of the filter screen plate (9), and the installation seat (17) is located on the inner side of the rectangular movable opening (16).

7. The protection device for the output circuit of the switching power supply is characterized in that a push-pull plate (10) is fixedly connected to the outer wall of one side of the mounting seat (17), the push-pull plate (10) is in contact with the outer wall of one side of the protection box (1), and a round handle (11) is fixedly connected to the outer wall of one side of the push-pull plate (10).