CN213184151U

CN213184151U - Overload protection structure of switching power supply

Info

Publication number: CN213184151U
Application number: CN202022557152.5U
Authority: CN
Inventors: 黄在飞
Original assignee: Shenzhen Songpuda Technology Co ltd
Current assignee: Shenzhen Songpuda Technology Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-05-11
Anticipated expiration: 2030-11-09

Abstract

The utility model relates to a switching power supply technical field specifically is a switching power supply's overload protection structure, including device body, injecing structure and clamping structure, the device body includes the main part, the line mouth has been seted up on the main part top, the line mouth has been seted up to the main part bottom, the main part is connected with the screw, the screw top is provided with the power brake, the power brake is connected with the flashboard, it is including the movable plate to injecing the structure, the movable plate is connected with the connecting rod, the connecting rod is connected with the gear, gear connection has the rack, the inside dead lever that has inserted of line mouth, the dead lever outer wall is provided with insulating shell, clamping structure is including the connecting block. The utility model discloses a cell body that dead lever penetrated the wiring mouth and offered for the through-hole of movable plate coincidence wiring mouth, in making it be fixed in the cell body through rotating the dead lever, this design used the removal of movable plate to fix the circuit position.

Description

Overload protection structure of switching power supply

Technical Field

The utility model relates to a switching power supply technical field specifically is a switching power supply's overload protection structure.

Background

A switching power supply is one type of power supply. The function is to convert a level voltage into a voltage or current required by the user terminal through different types of architectures. The input of the switching power supply is mostly an alternating current power supply or a direct current power supply, the output is mostly equipment needing the direct current power supply, and the switching power supply performs voltage and current conversion between the two.

Overload protection is overload protection equipment which is additionally arranged for preventing a main power circuit from being damaged due to overheat caused by overload of a protector, and is used for protecting the behaviors exceeding the load, wherein an air switch is one of the equipment capable of protecting the circuit, but the air switch generally has the problem that the circuit is damaged after being fixed by screws.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching power supply's overload protection structure to solve the fragile problem of air switch screw fixed line that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an overload protection structure of a switching power supply comprises a device body, a limiting structure and a clamping structure, the device body comprises a main body, the top end of the main body is provided with a wire connecting port, the bottom end of the main body is provided with a wire connecting port, the main body is connected with a screw, the top end of the screw is provided with a power supply gate, the power supply gate is connected with a flashboard, the limiting structure comprises a moving plate, the moving plate is connected with a connecting rod, the connecting rod is connected with a gear, the gear is connected with a rack, a fixed rod is inserted into the inner part of the connecting port, the outer wall of the fixed rod is provided with an insulating shell, the clamping structure comprises a connecting block, the connecting block is fixedly connected with a spring, the spring is fixedly connected with a first clamping plate, the first splint both sides are provided with the stopper, the main part bottom is connected with the fixed block, fixed block fixedly connected with second splint.

Preferably, the main body is formed by connecting two halves through screws, and the back of the main body is provided with a groove.

Preferably, the moving plate is provided with a through hole, and the middle part of the gear is provided with a through hole.

Preferably, the bottom ends of the two sides of the moving plate are provided with groove body connecting racks, and the gears are intersected with the racks.

Preferably, a groove body is formed in the inner portion of the connecting line port, and the volume of the fixing rod is smaller than that of the groove body.

Preferably, the inner wall of the bottom end of the main body is fixedly connected with a fixing block, and the top ends of the first clamping plate and the second clamping plate are semicircular.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this switching power supply's overload protection structure penetrates the cell body that the line mouth was seted up through the through-hole of movable plate coincidence line mouth with the dead lever, makes it be fixed in the cell body through rotating the dead lever, and this design uses the removal of movable plate to fix the circuit position for outside circuit can not break away from because of dragging, goes deep into the cell body and carries out the secondary to inner line at the use dead lever and fixes, makes its security improve and can not drop.

2. This switching power supply's overload protection structure is connected to first splint through the connecting block, but fixed second splint of same shape are provided with because of it is opposite, uses the connecting block to drive first splint and removes the space of reserving the circuit and getting into, resets after the circuit gets into, and this design makes the circuit get into the back and can carry out the centre gripping to it fixed, has increased the line connection stable while and has reduced because of the danger that the circuit drops and leads to.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the connection structure of the connection port and the fixing rod of the present invention;

fig. 4 is a schematic top view of the cross-sectional structure of the present invention.

Fig. 5 is a schematic bottom sectional structure of the present invention.

In the figure: 1. a device body; 110. a main body; 120. a connecting port; 130. a wiring port; 140. a screw; 150. a power gate; 160. a shutter plate; 2. defining a structure; 210. moving the plate; 220. a connecting rod; 230. a gear; 240. a rack; 250. fixing the rod; 260. an insulating case; 3. a clamping structure; 310. connecting blocks; 320. a spring; 330. a first splint; 340. a limiting block; 350. a fixed block; 360. a second splint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment:

an overload protection structure of a switching power supply comprises a device body 1, a limiting structure 2 and a clamping structure 3, wherein the device body 1 comprises a main body 110, the top end of the main body 110 is provided with a connecting wire port 120, the bottom end of the main body 110 is provided with a connecting wire port 130, the main body 110 is connected with a screw 140, the top end of the screw 140 is provided with a power supply gate 150, the power supply gate 150 is connected with a flashboard 160, the limiting structure 2 comprises a moving plate 210, the moving plate 210 is connected with a connecting rod 220, the connecting rod 220 is connected with a gear 230, the gear 230 is connected with a rack 240, a fixing rod 250 is inserted into the connecting wire port 120, the outer wall of the fixing rod 250 is provided with an insulating shell 260, safety during manual operation is facilitated, the clamping structure 3 comprises a connecting block 310, the connecting block 310 is fixedly connected with a spring 320, the fixed block 350 is fixedly connected with a second clamping plate 360, so that the circuit is fixed and is not easy to loosen.

Further, the main body 110 is formed in two halves connected by the screw 140 to facilitate internal repair and adjustment, and the back of the main body 110 is formed with a groove to facilitate fixing of the main body 110.

Further, the moving plate 210 is provided with a through hole for allowing the fixing rod 250 to enter the inside, and the middle of the gear 230 is provided with a through hole for allowing the connecting rod 220 to connect and fix the moving plate 210 and the gear 230.

Further, the bottom ends of the two sides of the moving plate 210 are provided with groove connecting racks 240, and the gear 230 intersects with the racks 240, which is beneficial for the gear 230 to rotate in the center of the racks 240.

Further, a groove body is formed in the connecting port 120, and the size of the fixing rod 250 is smaller than that of the groove body, so that the circuit and the fixing rod 250 can enter the groove body together to be fixed.

Further, the inner wall of the bottom end of the main body 110 is fixedly connected with a fixing block 350, and the top ends of the first clamping plate 330 and the second clamping plate 360 are arranged in a semicircular shape, so that the circuit can be clamped and fixed after entering.

The working principle is as follows: the rack 240 is arranged on two sides of the top end of the main body 110, the through holes arranged on two sides of the movable plate 210 are connected with the connecting rod 220, the connecting rod 220 is connected to the gear 230, the gear 230 is driven to rotate at the center of the rack 240 when the movable plate 210 is moved back and forth, so that the movable plate 210 is superposed with the through hole of the groove body arranged on the connecting line port 120 on the top end of the main body 110, the fixing of an external circuit is facilitated, the fixed rod 250 is connected to the groove body in the connecting line port 120 through the through hole arranged on the movable plate 210, the circuit is clamped by rotating the fixed rod 250, the fixing of the internal circuit is facilitated, and the insulating shell 260 is arranged.

The connecting block 310 is connected with the spring 320 through the through hole formed in one side of the bottom end of the main body 110, the connecting block 310 is connected to the first clamping plate 330 through the spring 320, the fixing block 350 is fixedly connected with the bottom end of the main body 110, the fixing block 350 is fixedly connected with the second clamping plate 360, the first clamping plate 330 is opposite to the second clamping plate 360, the connecting block 310 is pulled to drive the first clamping plate 330 to move outwards when the line passes through the wiring port 130, the movable position of the first clamping plate 330 is limited by the spring 320 and the limiting block 340, the spring 320 drives the first clamping plate 330 to reset by loosening the connecting block 310 after the line passes through, the line is clamped and fixed, the line is stabilized and is not easy to loosen, and convenience in line repairing is facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Claims

1. An overload protection structure of a switching power supply comprises a device body (1), a limiting structure (2) and a clamping structure (3), and is characterized in that: the device body (1) comprises a main body (110), a connecting port (120) is formed in the top end of the main body (110), a connecting port (130) is formed in the bottom end of the main body (110), the main body (110) is connected with a screw (140), a power supply brake (150) is arranged on the top end of the screw (140), the power supply brake (150) is connected with a gate plate (160), the limiting structure (2) comprises a moving plate (210), the moving plate (210) is connected with a connecting rod (220), the connecting rod (220) is connected with a gear (230), the gear (230) is connected with a rack (240), a fixing rod (250) is inserted into the connecting port (120), an insulating shell (260) is arranged on the outer wall of the fixing rod (250), the clamping structure (3) comprises a connecting block (310), the connecting block (310) is fixedly connected with a spring (320), and the spring (320) is, first splint (330) both sides are provided with stopper (340), main part (110) bottom connection has fixed block (350), fixed block (350) fixedly connected with second splint (360).

2. The overload protection structure of the switching power supply according to claim 1, wherein: the main body (110) is arranged in two halves and is connected through a screw (140), and a groove is formed in the back of the main body (110).

3. The overload protection structure of the switching power supply according to claim 1, wherein: the moving plate (210) is provided with a through hole, and the middle part of the gear (230) is provided with a through hole.

4. The overload protection structure of the switching power supply according to claim 1, wherein: the bottom ends of the two sides of the moving plate (210) are provided with groove body connecting racks (240), and the gears (230) are intersected with the racks (240).

5. The overload protection structure of the switching power supply according to claim 1, wherein: a groove body is formed in the connecting line port (120), and the size of the fixing rod (250) is smaller than that of the groove body.

6. The overload protection structure of the switching power supply according to claim 1, wherein: the inner wall fixedly connected with fixed block (350) in main part (110) bottom, first splint (330) and second splint (360) top set up to semi-circular.