CN211880079U - Electric appliance debugging and maintaining protection device - Google Patents
Electric appliance debugging and maintaining protection device Download PDFInfo
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- CN211880079U CN211880079U CN202020689428.2U CN202020689428U CN211880079U CN 211880079 U CN211880079 U CN 211880079U CN 202020689428 U CN202020689428 U CN 202020689428U CN 211880079 U CN211880079 U CN 211880079U
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Abstract
The utility model provides an electric appliance debugging and maintaining protection device, which comprises an alternating current power input board, a power switch, an isolation transformer, an overload protector, an overload protection acousto-optic prompter, an ammeter, a voltmeter and an alternating current power output board; the alternating current power input board is connected with an input wiring board of a power switch through a wire, an output wiring board of the power switch is connected with an input wiring board of an isolation transformer through a wire, one wiring terminal of the output wiring board of the isolation transformer is connected with an access terminal of an overload protector through a wire, an output terminal of the overload protector is connected with an input terminal of an ammeter through a wire, and the overload protection acousto-optic prompter is connected with the overload protector in parallel. The utility model has the characteristics of simple structure, with low costs, can avoid by maintenance or debugging electrical apparatus direct access power to play the protection by maintenance or debugging electrical apparatus's effect etc.
Description
Technical Field
The utility model relates to a power protection technical field, in particular to electrical apparatus debugging maintenance protection device.
Background
In some household electrical appliances maintenance trades, when carrying out household electrical appliances maintenance or debugging, some trouble hidden danger are under the condition that the electrical apparatus does not go up the electricity, be difficult to detect out the size of the electrical apparatus internal circuit trouble of being maintained or debugging with the instrument, if direct access is maintained or debugs the used alternating current power supply of electrical apparatus, can further enlarge by the trouble of maintenance or debugging electrical apparatus, and then increase the degree of difficulty of the maintenance of electrical apparatus, unnecessary economic loss has also been increased simultaneously, consequently need a protection device that can protect by maintenance or debugging electrical apparatus and simple structure, with low costs, convenient to detach installation urgently.
SUMMERY OF THE UTILITY MODEL
The purpose of the present invention is to solve at least one of the technical drawbacks.
Therefore, the utility model aims to provide an electrical apparatus debugging maintenance protection device has simple structure, with low costs, convenient to detach installation, can avoid being maintained or debugging electrical apparatus direct access power to play the protection and be maintained or debug the effect of electrical apparatus.
In order to achieve the above object, an embodiment of the present invention provides an electrical appliance debugging and maintenance protection device, which includes an ac power input board, a power switch, an isolation transformer, an overload protector, an overload protection acousto-optic prompter, an ammeter, a voltmeter, and an ac power output board; the alternating current power input board is connected with an input wiring board of a power switch through a wire, an output wiring board of the power switch is connected with an input wiring board of an isolation transformer through a wire, one wiring terminal of the output wiring board of the isolation transformer is connected with an access terminal of an overload protector through a wire, an output terminal of the overload protector is connected with an input terminal of an ammeter through a wire, an output terminal of the ammeter is connected with one wiring terminal of the alternating current power output board, the other wiring terminal of the output wiring board of the isolation transformer is connected with the other wiring terminal of the alternating current power output board, the voltmeter is connected with the alternating current power output board in parallel, and the overload protection audible and visual prompter is connected with the overload protector.
In any of the above schemes, preferably, the protection device further comprises a protection shell, and the protection shell is provided with an alternating current power input board, a power switch, an overload protection acousto-optic prompter, an ammeter, a voltmeter and an alternating current power output board.
In any of the above schemes, preferably, an isolation transformer and an overload protector are arranged inside the protective casing.
In any of the above schemes, preferably, the power switch is an automatic reset normally open switch.
In any of the above schemes, preferably, the automatic reset normally open switch is a pedal self-reset normally open switch.
In any of the above schemes, preferably, the isolation transformer is a 1:1 isolation transformer.
In any of the above embodiments, preferably, when the ac power input board is connected to the safety voltage, the isolation transformer can be removed, one connection terminal of the output connection board of the power switch is directly connected to one connection terminal of the ac power output board through a wire after being sequentially connected to the overload protector and the ammeter, and the other connection terminal of the output connection board of the power switch is directly connected to the other connection terminal of the ac power output board through a wire.
In any of the above schemes, preferably, the overload protector is a pure resistive load overload protector.
In any of the above solutions, it is preferable that the power of the overload protector is selected to be between 2 and 150 times of the power of the debugged maintenance appliance.
In any of the above schemes, preferably, the input terminal of the overload protection acousto-optic prompter is connected with the input end of the overload protector, and the output terminal of the overload protection acousto-optic prompter is connected with the output end of the overload protector.
The utility model discloses an electrical apparatus debugging maintenance protection device has following beneficial effect:
1. the utility model discloses whether can in time discover to be maintained or debug the electrical apparatus and have had great trouble, still played the protection when discovering the trouble and maintained or debug the function of electrical apparatus, effectually reduced unnecessary economic loss, improved maintenance or debugging personnel's work efficiency.
2. The utility model discloses a can in time discover by the maintenance or debug the electrical apparatus whether have great trouble, overload protection ware 4's power chooses for use by the maintenance of debugging electrical apparatus power between 2 to 150 times.
3. The utility model discloses an isolation transformer's design lets isolation transformer's output be "open circuit" completely with the input and keeps apart, has played a good filtering action with regard to effectual power to the input like this. Therefore, pure power supply voltage is provided for the maintained or debugged electric appliance, and the maintained or debugged electric appliance is prevented from being directly connected with a power supply to further damage the maintained or debugged electric appliance.
4. When states such as overcurrent, short circuit, open phase, looks unbalance, wrong phase appear, the utility model discloses an overload protection open circuit, overload protection reputation prompting device send audible and visual warning, can avoid abnormal current to get into by maintenance or debugging electrical apparatus to the protection is not damaged by abnormal current by maintenance or debugging electrical apparatus.
5. The utility model has the advantages of simple structure, each components and parts quantity is less to low in manufacturing cost is convenient for use widely on a large scale.
6. The utility model discloses an adopt wire and binding post's connected mode between each part, convenient to detach and installation are favorable to later stage equipment repacking, can improve its range of application greatly.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The utility model provides an electric appliance debugging and maintaining protection device, as shown in figure 1-2, comprising an AC power input board 1, a power switch 2, an isolation transformer 3, an overload protector 4, an overload protection acousto-optic prompter 5, an ammeter 6, a voltmeter 7 and an AC power output board 8; the alternating current power input board 1 is connected with an input wiring board 14 of the power switch 2 through a wire, an output wiring board 14 of the power switch 2 is connected with an input wiring board 11 of the isolation transformer 3 through a wire, one wiring terminal of an output wiring board 12 of the isolation transformer 3 is connected with an access terminal of the overload protector 4 through a wire, an output terminal of the overload protector 4 is connected with an input terminal of the ammeter 6 through a wire, an output terminal of the ammeter 6 is connected with one wiring terminal of the alternating current power output board 8, the other wiring terminal of the output wiring board 12 of the isolation transformer 3 is connected with the other wiring terminal of the alternating current power output board 8, the voltmeter 7 is connected with the alternating current power output board 8 in parallel, and the overload protection acousto-optic prompter.
The working principle is as follows: after the alternating current is connected to the alternating current input board 1, and the power switch 2 is closed, the current enters the isolation transformer 3, and then is output to the maintained or debugged electric appliance from the alternating current output board 8 through the load protector 4, the ammeter 6 and the voltmeter 7; when the over-current, short circuit, phase loss, phase unbalance, phase error and other states occur, the overload protector 4 acts to break the circuit, the overload protection acousto-optic prompter gives out acousto-optic warning, and abnormal current can be prevented from entering the maintained or debugged electric appliance, so that the maintained or debugged electric appliance is protected from being damaged by the abnormal current.
The utility model discloses adopting isolation transformer's design, letting isolation transformer's output be "open circuit" completely with the input and keep apart, played a good filtering action with regard to effectual power to the input like this. Therefore, pure power supply voltage is provided for the maintained or debugged electric appliance, and the maintained or debugged electric appliance is prevented from being directly connected with a power supply to further damage the maintained or debugged electric appliance.
The utility model discloses in order to avoid the circuit to receive external environment and premature aging, still include protecting sheathing 15, be equipped with alternating current power supply input board 1, switch 2, overload protection reputation prompting device 4, ampere meter 6, voltmeter 7, alternating current power supply output board 8 on the protecting sheathing 15. The isolation transformer 3 and the overload protector 4 are arranged in the protective shell 15.
The power switch 2 is an automatic reset normally open switch. The automatic reset normally-open switch is a pedal self-reset normally-open switch.
The isolation transformer 3 is a 1:1 isolation transformer.
When the alternating current power input board 1 is connected with a safe voltage, the isolation transformer 3 can be removed, one connecting terminal of an output connecting board 14 of the power switch 2 is directly connected with one connecting terminal of the alternating current power output board 8 after being sequentially connected with the overload protector 4 and the ammeter 6 through a lead, and the other connecting terminal of an output connecting board 13 of the power switch 2 is directly connected with the other connecting terminal of the alternating current power output board 8 through a lead.
The utility model discloses a further embodiment, overload protection device 4 chooses pure hindering nature load overload protection ware for use in order to further increase circuit protection performance.
In another embodiment of the present invention, in order to find out in time whether there is a large fault in the maintained or debugged electrical appliance, the power of the overload protector 4 is selected between 2 times and 150 times of the power of the debugged maintained electrical appliance.
An input wiring terminal 10 of the overload protection acousto-optic prompter 5 is connected with the input end of the overload protector 4, and an output wiring terminal 9 of the overload protection acousto-optic prompter 5 is connected with the output end of the overload protector 4.
The utility model discloses whether can in time discover to be maintained or debug the electrical apparatus and have had great trouble, still played the protection when discovering the trouble and maintained or debug the function of electrical apparatus, effectually reduced unnecessary economic loss, improved maintenance or debugging personnel's work efficiency.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An electric appliance debugging maintenance protection device is characterized by comprising an alternating current power input board, a power switch, an isolation transformer, an overload protector, an overload protection acousto-optic prompter, an ammeter, a voltmeter and an alternating current power output board; the alternating current power input board is connected with an input wiring board of a power switch through a wire, an output wiring board of the power switch is connected with an input wiring board of an isolation transformer through a wire, one wiring terminal of the output wiring board of the isolation transformer is connected with an access terminal of an overload protector through a wire, an output terminal of the overload protector is connected with an input terminal of an ammeter through a wire, an output terminal of the ammeter is connected with one wiring terminal of the alternating current power output board, the other wiring terminal of the output wiring board of the isolation transformer is connected with the other wiring terminal of the alternating current power output board, the voltmeter is connected with the alternating current power output board in parallel, and the overload protection audible and visual prompter is connected with the overload protector.
2. The appliance debugging and maintenance protection device of claim 1, further comprising a protective housing, wherein the protective housing is provided with an ac power input board, a power switch, an overload protection acousto-optic prompter, an ammeter, a voltmeter, and an ac power output board.
3. The appliance debugging and maintenance protection device of claim 2, wherein an isolation transformer and an overload protector are arranged inside the protection shell.
4. The appliance debugging and maintenance protection device of claim 1, wherein the power switch is an automatic reset normally open switch.
5. The appliance debugging and maintenance protection device of claim 4, wherein the automatic reset normally open switch is a pedal self-reset normally open switch.
6. The appliance debugging and maintenance protection device of claim 1, wherein the isolation transformer is a 1:1 isolation transformer.
7. An electrical apparatus debugging and maintenance protection device as claimed in claim 1, wherein when the ac power input board is connected to the safety voltage, the isolation transformer can be removed, one terminal of the output terminal board of the power switch is connected to one terminal of the ac power output board directly through the lead wire, and the other terminal of the output terminal board of the power switch is connected to the other terminal of the ac power output board directly through the lead wire.
8. The appliance debugging and maintenance protection device of claim 1 wherein the overload protector is a purely resistive load overload protector.
9. The appliance commissioning maintenance protection device of claim 1, wherein the power of said overload protector is selected to be between 2 and 150 times the power of the commissioned maintenance appliance.
10. An electrical apparatus debugging and maintenance protection device according to claim 1, wherein the input terminal of the overload protection acousto-optic prompter is connected with the input terminal of the overload protector, and the output terminal of the overload protection acousto-optic prompter is connected with the output terminal of the overload protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689428.2U CN211880079U (en) | 2020-04-29 | 2020-04-29 | Electric appliance debugging and maintaining protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689428.2U CN211880079U (en) | 2020-04-29 | 2020-04-29 | Electric appliance debugging and maintaining protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211880079U true CN211880079U (en) | 2020-11-06 |
Family
ID=73233848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020689428.2U Expired - Fee Related CN211880079U (en) | 2020-04-29 | 2020-04-29 | Electric appliance debugging and maintaining protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211880079U (en) |
-
2020
- 2020-04-29 CN CN202020689428.2U patent/CN211880079U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |