CN217956696U

CN217956696U - High-altitude vehicle alternating-current wiring error protection device

Info

Publication number: CN217956696U
Application number: CN202222341692.9U
Authority: CN
Inventors: 林正为
Original assignee: Shenzhen Aricharge Technolog Co ltd
Current assignee: Shenzhen Aricharge Technolog Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-02
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a high altitude car exchanges wiring error protection device relates to the safety protection field, and this high altitude car exchanges wiring error protection device includes: the alternating current input module is used for accessing power grid voltage through a live wire, a ground wire and a live/zero line and supplying power to the alternating current output module; the alternating current output module is used for supplying power to electric appliances inside the overhead crane; the power supply module is used for driving the relay to work when the live wire and the ground wire of the alternating current input module are in wrong connection; the relay is used for disconnecting the switch when the high-altitude vehicle works by electrifying to prevent the shell of the high-altitude vehicle from being electrified; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when the high altitude car ground wire connects wrong live wire, power module drive relay work, the control switch disconnection for the ground wire interface of exchanging input module and the ground wire interface disconnection of exchanging output module avoid the live wire power supply to make the high altitude car shell electrified, cause the user to electrocute emergence under the situation, ensure safety.

Description

High-altitude vehicle alternating-current wiring error protection device

Technical Field

The utility model relates to a safety protection field specifically is a high altitude car exchanges wiring error protection device.

Background

The high-altitude vehicle is a vehicle which is more than 3 meters, is provided with a plurality of hydraulic oil cylinders by a hydraulic or electric system, and can lift up and down to perform operation.

In the high altitude car, fix on the support of high altitude car with the shell of electrical apparatus, both link to each other, it switches on electrically, input power cord (live wire, the zero line, the ground wire) of electrical apparatus is because the difference of in service behavior, the connection by oneself can appear, and domestic building site often is not standard, often not the earth connection, or cut off the ground wire, only connect live wire and zero line, because probably the operation of irregularity, the live wire of the input power cord of electrical apparatus is likely to be received on the ground wire of electrical apparatus input, inside electrical apparatus, the ground wire is the connection shell, will arouse like this that electrical apparatus shell is electrified, fix on high altitude car with electrical apparatus again, can arouse that high altitude car is electrified, in case touch, just can produce the risk of line electric shock, need improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high altitude car exchanges wiring error protection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an overhead cab ac wiring fault protection device comprising:

the alternating current input module is used for accessing power grid voltage through a live wire, a ground wire and a live/zero line and supplying power to the alternating current output module;

the alternating current output module is used for supplying power to the electric appliances in the overhead car;

the power supply module is used for driving the relay to work when a live wire and a ground wire of the alternating current input module are connected in a wrong way;

the relay is used for disconnecting the switch when the high-altitude vehicle works by electrifying, so that the high-altitude vehicle shell is prevented from being electrified;

the alternating current input module is connected with the alternating current output module and the power supply module, and the power supply module is connected with the relay.

As a further aspect of the present invention: the alternating current input module is connected to a 110V/220V/380V power grid.

As the utility model discloses further scheme again: the live wire interface, the ground wire interface and the live/zero line interface of the alternating current input module are sequentially connected with the live wire interface, the ground wire interface and the live/zero line interface of the alternating current output module.

As a further aspect of the present invention: the first input end, the second input end and the third input end of the power supply module are sequentially connected with a live wire/zero line interface, a live wire interface and a ground wire interface of the alternating current input module.

As a further aspect of the present invention: the ground wire interface of the alternating current input module is connected with the ground wire interface of the alternating current output module through a wire, and a normally closed switch is arranged on the wire.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when the high altitude car ground wire connects wrong live wire, power module drive relay work, the control switch disconnection for the ground wire interface of exchanging input module and the ground wire interface disconnection of exchanging output module avoid the live wire power supply to make the high altitude car shell electrified, cause the user to electrocute emergence under the situation, ensure safety.

Drawings

Fig. 1 is a schematic circuit diagram of an overhead vehicle ac wiring error protection device.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1, an apparatus for protecting an ac connection error of a high-altitude vehicle includes:

the alternating current output module is used for supplying power to electric appliances inside the overhead crane;

the power supply module is used for driving the relay to work when the live wire and the ground wire of the alternating current input module are in wrong connection;

the relay is used for disconnecting the switch when the high-altitude vehicle works by electrifying to prevent the shell of the high-altitude vehicle from being electrified;

In this embodiment: referring to fig. 1, the ac input module is connected to a 110V/220V/380V grid.

The alternating current input module introduces power grid alternating current voltage through a fire/zero line interface, a fire line interface and a ground wire interface.

In this embodiment: referring to fig. 1, the live/neutral interface, the live line interface, and the ground line interface of the ac input module are sequentially connected to the live/neutral interface, the live line interface, and the ground line interface of the ac output module.

The alternating current input module introduces voltage to be output to the alternating current output module to supply power for electric appliances inside the overhead crane.

In this embodiment: referring to fig. 1, a first input end, a second input end, and a third input end of a power module are sequentially connected to a live/neutral line interface, a live line interface, and a ground line interface of an ac input module.

When the live wire/zero line interface, the live wire interface and the ground wire interface of the alternating current input module are connected correctly, the power supply module does not have voltage input, and the circuit supplies power normally; when the live wire interface ground wire and the ground wire interface of the alternating current input module are connected with the live wire and the wiring is wrong, the third input end of the power supply module obtains voltage through the ground wire interface of the alternating current input module, and the internal processing of the power supply module converts alternating current into direct current (the prior art is not repeated) to supply power for the relay.

In this embodiment: referring to fig. 1, the ground wire interface of the ac input module is connected to the ground wire interface of the ac output module through a wire, and a normally closed switch is disposed on the wire.

When the relay is electrified to work, the normally closed switch on the control wire is disconnected, so that the ground wire interface of the alternating current input module and the ground wire interface of the alternating current output module are disconnected, and the problem that the voltage of the ground wire interface of the alternating current input module is output to a shell of a high-altitude vehicle through the ground wire interface of the alternating current output module due to misconnection, and personnel electric shock danger is caused is avoided.

The utility model discloses a theory of operation is: the alternating current input module is connected with the power grid voltage through a live wire, a ground wire and a live/zero line and supplies power for the alternating current output module, the alternating current output module supplies power for electric appliances inside the overhead crane, the power module drives the relay to work when the live wire and the ground wire of the alternating current input module are mistakenly connected, and the relay is disconnected when the relay is electrified to work and prevents the shell of the overhead crane from being electrified.

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.

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 high altitude car exchanges wiring error protection device which characterized in that:

this high altitude car exchanges wiring error protection device includes:

2. The high-altitude-vehicle alternating-current wiring error protection device as claimed in claim 1, wherein the alternating-current input module is connected to a 110V/220V/380V power grid.

3. The high-altitude vehicle alternating-current wiring error protection device as claimed in claim 1, wherein a fire/zero line interface, a fire line interface and a ground line interface of the alternating-current input module are sequentially connected with a fire/zero line interface, a fire line interface and a ground line interface of the alternating-current output module.

4. The high-altitude vehicle alternating current wiring error protection device as claimed in claim 1, wherein the first input end, the second input end, and the third input end of the power module are connected to a live/neutral line interface, a live line interface, and a ground line interface of the alternating current input module in sequence.

5. The high-altitude vehicle alternating-current wiring error protection device as claimed in claim 3, wherein a ground wire interface of the alternating-current input module is connected with a ground wire interface of the alternating-current output module through a wire, and a normally closed switch is arranged on the wire.