CN210835197U

CN210835197U - Power supply short-circuit protection jig

Info

Publication number: CN210835197U
Application number: CN201921699406.8U
Authority: CN
Inventors: 刘斌; 毛鹏; 封朝南
Original assignee: Wuxi Quanyu Electronic Technology Co ltd
Current assignee: Wuxi Quanyu Electronic Technology Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-23
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to a power short-circuit protection field discloses a power short-circuit protection tool, including the tool box body, ship type control switch, ship type switch, power input socket, power output socket and bulb, utensil box body surface nested connection power input socket, tool box body internally mounted bulb, ship type control switch are used for controlling the return circuit break-make between power input socket and the power output socket, and ship type switch is used for the L utmost point return circuit break-make of control power, and the bulb is connected at ship type switch both ends. During the test, disconnection ship type switch, closed ship type control switch, if the bulb twinkle, then the product is normal, satisfies the condition of continuing the test, if the bulb is bright often, then the power appears the short circuit in the product inside, and the L utmost point of power flows into the N utmost point through the bulb this moment, avoids the damage of power to the product.

Description

Power supply short-circuit protection jig

Technical Field

The utility model relates to a power short-circuit protection field, concretely relates to power short-circuit protection tool.

Background

When the equipment is installed and debugged, the protection of the power supply is necessary. At present, when a power supply is short-circuited or power consumption equipment is abnormal, current of a power supply line can be increased, in order to avoid causing greater loss, a thermal relay protector and a fuse are often installed on the power supply line, when the current is too large, the fuse and the thermal relay protector can disconnect the power supply line, but at the moment, the power consumption equipment can be damaged due to the abnormal condition of the power supply line, and especially for some complex and high-cost equipment, the damage is caused, which means that the manufacturing cost needs to be increased.

Although various power protection circuits or devices exist at present, most of the devices detect voltage or current abnormity through a sensor and then disconnect a power loop, the processing mode avoids loss caused by power abnormity to a certain extent, but electronic products connected with the current power cannot be protected, and on the other hand, the manufacturing cost and the installation environment are difficult to popularize in a large range.

After electronic products such as chargers and the like are manufactured, performance testing is needed, the power supply is connected into the products firstly in a conventional method, then various parameters are tested, if the products are unqualified in manufacturing, the power supply can be short-circuited inside the products, and power accidents and damage to the products can be caused in serious cases.

SUMMERY OF THE UTILITY MODEL

In view of the deficiency of the background art, the utility model provides a power short-circuit protection tool, the technical problem that solve is at the capability test in-process of electronic product such as charger, lacks the protection of power when the short circuit appears in the product inside.

For solving the technical problem, the utility model provides a following technical scheme: a power supply short-circuit protection jig comprises a jig box body, a ship-shaped control switch, a ship-shaped power switch, a power supply input socket, a power supply output socket and a bulb.

Power input socket nested connection is on the tool box body surface, the bulb is installed inside the tool box body, ship type control switch includes A circuit control switch and B circuit control switch, the L utmost point of power input socket connects A circuit control switch's input, the N utmost point of power input socket connects B circuit control switch's input, ship type switch's input is connected to A circuit control switch's output electricity, ship type switch's output electricity connects the L utmost point of power output socket, B circuit control switch's output electricity connects the N utmost point of power output socket, A circuit control switch's output is connected to bulb one end electricity, the L utmost point of power output socket is connected to the bulb other end electricity, the earthing terminal of power input socket is connected with power output socket's earthing terminal electricity.

Furthermore, in order to avoid the power input socket to appear breakage or get into other conductor medium when not using, power input socket is quality tail socket.

Furthermore, in order to facilitate the testing of workers, the power output socket, the ship-shaped control switch and the ship-shaped power switch are arranged on the control box in a centralized manner.

Furthermore, the power output socket, the ship-shaped power switch and the ship-shaped control switch are sequentially connected in a nested manner from left to right on the top of the control box. The power output socket and the two switches are installed in different areas, so that the control box can be operated by workers conveniently.

Before testing, the ship-shaped power switch is disconnected, a power plug of a product is inserted into a power output socket, alternating current is connected into a power input socket, then the ship-shaped control switch is closed, if a short circuit occurs in the product, the bulb displays normal brightness, the L pole of the power can flow into the N pole through the bulb on the outside, and if the power is normally connected in the product, the bulb flickers.

Compared with the prior art, the utility model beneficial effect who has is: during testing, if the power supply is short-circuited in the product, the L pole of the power supply flows into the N pole through the bulb on the outside, and the bulb displays normal brightness, so that the product is prevented from being substantially damaged by the power supply, and the manufacturing cost is saved.

Drawings

The utility model discloses there is following figure:

FIG. 1 is a schematic diagram of the electrical connection of the present invention;

fig. 2 is a top view of the control box of the present invention;

fig. 3 is a schematic diagram of the ship-type control switch of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1-3, a power supply short circuit protection fixture comprises a fixture box body, a boat-shaped control switch 2, a boat-shaped power supply switch 3, a power input socket 1, a power output socket 4 and a bulb 5.

The surface of the jig box body is connected with the power input socket 1 in a nested mode, the bulb 5 is installed inside the jig box body, the boat-shaped control switch 2 comprises an A-circuit control switch 25 and a B-circuit control switch 26, an L pole 11 of the power input socket 1 is electrically connected with an input end 23 of the A-circuit control switch 25, an N pole 12 of the power input socket 1 is electrically connected with an input end 21 of the B-circuit control switch 26, an output end 24 of the A-circuit control switch 25 is electrically connected with an input end 31 of the boat-shaped power switch 3, an output end 32 of the boat-shaped power switch 3 is electrically connected with an L pole 41 of the power output socket 4, an output end 22 of the B-circuit control switch 26 is electrically connected with an N pole 42 of the power output socket 4, one end of the bulb 5 is electrically connected with the output end 24 of the A-circuit control switch 25, the other end of the bulb 5 is electrically connected with.

Further, the power input socket 1 is a quality tail socket.

Further, a power outlet socket 4, a boat-shaped control switch 2 and a boat-shaped power switch 3 are centrally installed on the control box 6.

Further, the power output socket 4, the ship-shaped power switch 2 and the ship-shaped control switch 3 are sequentially connected in a nested manner from left to right at the top of the control box.

The utility model discloses the theory of operation as follows: before testing, the ship-shaped power switch 3 and the ship-shaped control switch 2 are disconnected, the power input socket 1 is connected with an alternating current power supply, and the power output socket 4 is connected with a power plug of a product. Then closing the ship-shaped control switch 2, if the bulb 5 normally flickers, the power supply in the product has no short circuit, the condition of continuous testing is met, if the bulb 5 is normally on, the power supply in the product has a short circuit, and the L pole of the power supply externally flows into the N pole through the bulb 5, so that the damage of the power supply to the product is avoided, and the manufacturing cost is further saved.

In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a power short-circuit protection tool, includes tool box body, ship type control switch, ship type switch, power input socket, power output socket and bulb, its characterized in that: the power input socket is nested and connected on the surface of the jig box body, the bulb is arranged in the jig box body, the ship-shaped control switch comprises an A-way control switch and a B-way control switch, the L pole of the power input socket is electrically connected with the input end of the A-way control switch, the N pole of the power input socket is electrically connected with the input end of the B-path control switch, the output end of the A-path control switch is electrically connected with the input end of the ship-shaped power switch, the output end of the ship-shaped power switch is electrically connected with the L pole of the power output socket, the output end of the B-way control switch is electrically connected with the N pole of the power output socket, one end of the bulb is electrically connected with the output end of the A-way control switch, the other end of the bulb is electrically connected with the L pole of the power output socket, and the grounding end of the power input socket is electrically connected with the grounding end of the power output socket.

2. The power supply short-circuit protection jig according to claim 1, characterized in that: the power input socket is a quality tail socket.

3. The power supply short-circuit protection jig according to claim 1, characterized in that: the power supply control device is characterized by further comprising a control box, wherein the power supply output socket, the ship-shaped control switch and the ship-shaped power switch are installed on the control box in a centralized mode.

4. The power supply short-circuit protection jig according to claim 3, characterized in that: the power output socket, the ship-shaped power switch and the ship-shaped control switch are sequentially connected in a nested manner from left to right at the top of the control box.