CN218041181U

CN218041181U - Double-voltage output power supply

Info

Publication number: CN218041181U
Application number: CN202221878891.7U
Authority: CN
Inventors: 候宇峰; 胡成林; 庞俊奎; 郭强
Original assignee: Shanxi Shiquan Coal LLC
Current assignee: Shanxi Shiquan Coal LLC
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-13
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a double-voltage output power supply, which comprises a box body, wherein an output power supply L1 end and an output power supply N1 end are arranged outside the box body; a transformer, a bridge rectifier circuit and a contactor are arranged in the box body, and the contactor comprises two pairs of main contacts and two pairs of normally closed auxiliary contacts; the AC220V input power supply is connected with a coil of the contactor to supply power to the contactor; the live wire end of the AC220V input power supply is connected with the L2 end, the T2 end is connected with the L1 end, the zero wire end of the AC220V input power supply is connected with the L3 end, and the T3 end is connected with the N1 end; the AC220V input power supply is connected with the input end of the transformer, the output end of the transformer is connected with the input end of the bridge rectifier circuit, the positive output end of the bridge rectifier circuit is connected with the end F1A, the end F1B is connected with the end L1, the negative output end of the bridge rectifier circuit is connected with the end F2A, and the end F2B is connected with the end N1. The double-voltage output power supply can output two different voltages through the same power output end so as to meet the requirements of electric equipment with different rated voltages.

Description

Double-voltage output power supply

Technical Field

The utility model relates to a power technical field particularly relates to a two voltage output power.

Background

Related equipment is frequently required to be maintained, overhauled or debugged in coal mine underground construction, rated voltages of different equipment are different, and voltages which are frequently used are AC220V and DC36V. The circuit will erect respectively to the voltage of difference among the prior art, causes the site operation environment circuit to be complicated, brings a lot of inconveniences to constructor's use, wastes time and energy, also easily mistakes and regards high voltage power supply as low voltage power supply and uses, burns out equipment, has certain potential safety hazard.

In this regard, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual voltage output power to solve prior art well circuit complicacy, bring a lot of inconveniences to constructor's use, waste time and energy, also easy mistake uses high voltage power supply as low voltage power supply, burns out equipment, has the problem of certain potential safety hazard.

In order to achieve the above object, the utility model discloses a technical solution is:

a double-voltage output power supply comprises a box body, wherein an output power supply L1 end and an output power supply N1 end are arranged outside the box body;

a transformer, a bridge rectifier circuit and a contactor are arranged in the box body, and the contactor comprises two pairs of main contacts and two pairs of normally closed auxiliary contacts;

an external AC220V input power supply is connected with a coil of the contactor to supply power to the contactor;

the live wire end of an external AC220V input power supply is connected with the end of a first input main contact L2, the end of a first output main contact T2 is connected with the end L1, the end of a zero wire of the external AC220V input power supply is connected with the end of a second input main contact L3, and the end T3 of the second output main contact is connected with the end N1;

an external AC220V input power supply is connected with the input end of the transformer, the output end of the transformer is connected with the input end of the bridge rectifier circuit, the positive output end of the bridge rectifier circuit is connected with the first input normally closed auxiliary contact F1A end, the first output normally closed auxiliary contact F1B end is connected with the L1 end, the negative output end of the bridge rectifier circuit is connected with the second input normally closed auxiliary contact F2A end, and the second output normally closed auxiliary contact F2B end is connected with the N1 end.

Preferably, the transformer is capable of changing AC220V to AC24V or AC36V.

Preferably, the bridge rectifier circuit is capable of converting alternating current into direct current.

Preferably, a power button for controlling the on-off of an external AC220V input power supply and a power switching button for controlling the on-off of a coil of the contactor are arranged on the box body.

Compared with the prior art the utility model discloses the beneficial effect who has:

the utility model discloses a two voltage output power, same power output end can export two kinds of different voltages to satisfy different rated voltage consumer's demand, make things convenient for constructor's operation, labour saving and time saving. Meanwhile, the double-voltage output power supply is simple in structure, low in manufacturing cost, high in practicability and convenient to popularize and use.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of the circuit connection of the present invention.

In the figure: 1. a power button; 2. a power switching button.

Detailed Description

The technical solution in 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses preferred embodiment provides a two voltage output power, including the box, the box is stainless steel, is equipped with output power L1 end and output power N1 end in the outside of box. And a transformer, a bridge rectifier circuit and a contactor are arranged in the box body.

Wherein, the transformer chooses for use common use among the prior art alternating current transformer can, the utility model discloses preferably adopt AC220V to become AC24V transformer or AC220V to become AC36V transformer, specifically select according to the use needs.

The bridge rectifier circuit is arranged on the circuit board, the specific circuit structure refers to the prior art, and the bridge rectifier circuit has the function of converting alternating current into direct current.

Wherein, the contactor is ac contactor, includes two pairs of main contacts and two pairs of normally closed auxiliary contacts on the contactor, and is specific, and two pairs of main contacts are respectively: a first input main contact L2 end, a first output main contact T2 end, a second input main contact L3 end and a second output main contact T3 end.

The two pairs of normally closed auxiliary contacts are respectively: the normally closed auxiliary contact system comprises a first input normally closed auxiliary contact F1A end, a first output normally closed auxiliary contact F1B end, a second input normally closed auxiliary contact F2A end and a second output normally closed auxiliary contact F2B end.

As shown in fig. 1, the specific circuit connections of the components inside the box are as follows:

an external AC220V input power supply is connected with the coil of the contactor to supply power to the contactor.

The live wire end of an external AC220V input power supply is connected with the first input main contact L2 end, the first output main contact T2 end is connected with the L1 end, the zero wire end of the external AC220V input power supply is connected with the second input main contact L3 end, and the second output main contact T3 end is connected with the N1 end.

An external AC220V input power supply is connected with an input end of a transformer, AC220V is changed into AC24V or AC36V through the transformer, an output end of the transformer is connected with an input end of a bridge rectifier circuit, AC24V or AC36V is changed into DC24V or DC36V through the bridge rectifier circuit, an anode output end of the bridge rectifier circuit is connected with a first input normally-closed auxiliary contact F1A end, a first output normally-closed auxiliary contact F1B end is connected with an L1 end, a cathode output end of the bridge rectifier circuit is connected with a second input normally-closed auxiliary contact F2A end, and a second output normally-closed auxiliary contact F2B end is connected with an N1 end.

Furthermore, a power button 1 for controlling the on-off of an external AC220V input power supply and a power switching button 2 for controlling the on-off of a coil of the contactor are also arranged on the box body.

Explain utility model's use:

when the external equipment needs to use DC24V or DC36V, the power button 1 is pressed, the external AC220V input power supply is conducted, the AC220V is subjected to voltage reduction through the transformer and the AC and DC of the bridge rectifier circuit in sequence, and then the DC24V or DC36V is formed between the L1 end and the N1 end through the normally closed auxiliary contact of the contactor.

When the external equipment needs to use AC220V, the power button 1 is pressed, the external AC220V input power supply is conducted, the power switching button 2 is pressed simultaneously, at the moment, the coil of the contactor is electrified and attracted, the two pairs of main contacts are conducted, the two pairs of normally closed auxiliary contacts are disconnected, and the AC220V forms AC220V between the L1 end and the N1 end through the main contacts of the contactor.

To sum up, the embodiment of the utility model provides a two voltage output power, same power output end can export two kinds of different voltages to satisfy different rated voltage consumer's demand, make things convenient for constructor's operation, labour saving and time saving. Meanwhile, the double-voltage output power supply is simple in structure, low in manufacturing cost, high in practicability and convenient to popularize and use.

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 the same; 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

1. A double-voltage output power supply is characterized by comprising a box body, wherein an output power supply L1 end and an output power supply N1 end are arranged outside the box body;

the live wire end of an external AC220V input power supply is connected with the end L2 of a first input main contact, the end T2 of a first output main contact is connected with the end L1, the end zero wire of the external AC220V input power supply is connected with the end L3 of a second input main contact, and the end T3 of the second output main contact is connected with the end N1;

2. A dual voltage output power supply according to claim 1, wherein the transformer is capable of changing AC220V to AC24V or AC36V.

3. A dual voltage output power supply according to claim 1, wherein said bridge rectifier circuit is capable of converting ac power to dc power.

4. A dual voltage output power supply according to claim 1, wherein the case is provided with a power button for controlling the on/off of an external AC220V input power and a power switching button for controlling the on/off of a coil of the contactor.