CN210955738U - Strong and weak current conversion device - Google Patents
Strong and weak current conversion device Download PDFInfo
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- CN210955738U CN210955738U CN201922221045.2U CN201922221045U CN210955738U CN 210955738 U CN210955738 U CN 210955738U CN 201922221045 U CN201922221045 U CN 201922221045U CN 210955738 U CN210955738 U CN 210955738U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a strong and weak current conversion device, it belongs to strong and weak current conversion device technical field, including forceful electric power circuit and weak current circuit, strong power, first relay coil, second normally closed switch and forceful electric power equipment are equipped with in proper order on the forceful electric power circuit, weak power, second relay coil, first normally closed switch and weak current equipment are equipped with in proper order on the weak current circuit, the second normally closed switch is controlled by the second relay coil, the first normally closed switch is controlled by the first relay coil; the utility model realizes that the strong current circuit and the weak current circuit can not be opened simultaneously when switching through the first relay coil, the first normally closed switch, the second relay coil and the second normally closed switch, thereby avoiding danger; the utility model discloses a first relay coil and second relay coil have adopted mechanical interlocking contactor, safe and reliable more.
Description
Technical Field
The utility model relates to a strong and weak electric conversion equipment technical field, concretely relates to strong and weak electric conversion equipment.
Background
In intelligent house teaching, strong and weak current conversion technique is important explanation content, the student can improve student's understanding degree effectively through manual strong and weak current conversion of realization, and simultaneously, because the forceful electric power equipment and the weak current equipment that use are all more in the electric power teaching, in the teaching in-process, can need carry out the switching of circuit between forceful electric power equipment and weak current equipment, present stage, do not be used for electric power teaching's strong and weak current conversion device specially, therefore, design a strong and weak current conversion device who is used for the teaching specially is the urgent problem of treating the solution in present stage electric power teaching field.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a pair of strong and weak electric conversion equipment, the student's operation and understanding of being convenient for have improved the security in the conversion of realization strong and weak electricity that can be convenient.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a strong and weak current conversion equipment, includes strong electric circuit and weak electric circuit, be equipped with strong power, first relay coil, second normally closed switch and strong electric equipment on the strong electric circuit in proper order, be equipped with weak power, second relay coil, first normally closed switch and weak electric equipment on the weak electric circuit in proper order, second normally closed switch by second relay coil control, first normally closed switch by first relay coil control.
As a preferred technical scheme, a first self-locking circuit is arranged on the strong electric line and at a position corresponding to the first relay coil, and a second self-locking circuit is arranged on the weak electric line and at a position corresponding to the second relay coil.
Preferably, the strong current line and the weak current line are both grounded.
As a preferable technical solution, a first switch is provided on the high-voltage line between the high-voltage power supply and the first relay coil, and a second switch is provided on the low-voltage line between the low-voltage power supply and the second relay coil.
As a preferred technical solution, the first relay coil and the second relay coil are a set of mechanical interlocking contactors.
The utility model has the advantages of that:
1. the utility model discloses a strong current circuit and light current circuit are realized to first relay coil, first normally closed switch and second relay coil, second normally closed switch when switching, can not open simultaneously, avoid taking place danger.
2. The utility model discloses a first relay coil and second relay coil have adopted mechanical interlocking contactor, safe and reliable more.
Drawings
Fig. 1 is a system block diagram of a strong and weak current conversion device of the present invention;
in the figure: 1-strong power supply, 2-strong power circuit, 3-first switch, 4-first relay coil, 5-first self-locking circuit, 6-second normally closed switch, 7-strong power equipment, 8-weak power supply, 9-weak power circuit, 10-second switch, 11-second relay coil, 12-second self-locking circuit, 13-first normally closed switch and 14-weak power equipment.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a strong and weak electricity conversion equipment, including forceful electric power circuit 2 and weak electric power circuit 9, be equipped with strong power supply 1 on the forceful electric power circuit 2 in proper order, first relay coil 4, second normally closed switch 6 and forceful electric power equipment 7, be equipped with weak power supply 8 on the weak electric power circuit 9 in proper order, second relay coil 11, first normally closed switch 13 and weak electric power equipment 14, second normally closed switch 6 is controlled by second relay coil 11, first normally closed switch 13 is controlled by first relay coil 4, first normally closed switch 13 is the normally closed contact of first relay and establishes ties with second relay coil 11, second normally closed switch 6 is the normally closed contact of second relay and establishes ties with first relay coil 4.
Furthermore, a first self-locking circuit 5 is arranged on the strong current circuit 2 and at a position corresponding to the first relay coil 4, the first self-locking circuit 5 is a circuit connected with the first relay coil 4 in parallel, a first self-locking switch is arranged on the circuit, when the first self-locking switch is pressed, strong current supplies power to the strong current equipment 7 through the first switch 3, the first self-locking switch and the second normally closed switch 6, meanwhile, the first relay coil 4 can be switched on in an attracting mode, and at the moment, the first self-locking switch can be released; on the weak current circuit 9, correspond second relay coil 11 department and be equipped with second self-locking circuit 12, and the same reason, second self-locking circuit 12 can realize the auto-lock of second relay coil 11.
Further, both the strong current line 2 and the weak current line 9 are grounded.
Further, a first switch 3 is arranged on the strong electric circuit 2 and between the strong power supply 1 and the first relay coil 4, and the first switch 3 is used for controlling the on-off of the strong electric circuit 2; a second switch 10 is arranged on the weak current line 9 and between the weak power supply 8 and the second relay coil 11, and the second switch 10 is used for controlling the on-off of the weak current line 9.
Further, the first relay coil 4 and the second relay coil 11 are a set of mechanically interlocking contactors.
The utility model discloses a concrete working process as follows:
when a strong power supply 1 needs to be used, the first switch 3 is closed, the first self-locking switch of the first self-locking circuit 5 is closed, strong current is enabled to supply power to strong current equipment 7 through the first switch 3, the first self-locking switch and the second normally closed switch 6, after the first relay coil 4 is closed and connected, the first self-locking switch is loosened to realize strong current power supply, at the moment, the first normally closed switch 13 is in a disconnected state for the normally closed contact of the first relay all the time, and the weak current circuit is guaranteed to be disconnected all the time; similarly, when the weak power supply 8 needs to be used, the second switch 10 is closed, the second self-locking switch of the second self-locking circuit 12 is closed, so that weak current is supplied to the weak current equipment 14 through the second switch 10, the second self-locking switch and the first normally closed switch 13, after the second relay coil 11 is closed and connected, the second self-locking switch is released to realize weak current power supply, at the moment, the second normally closed switch 6 is in a disconnected state for the normally closed contact of the second relay all the time, and the strong current circuit is ensured to be disconnected all the time; namely, when any one of the strong current circuit 2 or the weak current circuit 9 is used, the other one is always in a disconnected state, and the safety is ensured.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The utility model provides a strong and weak current conversion equipment, characterized by includes forceful electric power circuit and weak electric current circuit, be equipped with strong power, first relay coil, second normally closed switch and forceful electric power equipment on the forceful electric power circuit in proper order, be equipped with weak power, second relay coil, first normally closed switch and weak electric power equipment on the weak electric power circuit in proper order, second normally closed switch by second relay coil control, first normally closed switch by first relay coil control.
2. A strong and weak current conversion device according to claim 1, wherein a first self-locking circuit is provided on the strong current circuit corresponding to the first relay coil, and a second self-locking circuit is provided on the weak current circuit corresponding to the second relay coil.
3. A strong and weak current converting device according to claim 1, wherein said strong current line and said weak current line are grounded.
4. A strong and weak current switching device according to claim 1, wherein a first switch is provided on said strong power line between said strong power source and said first relay coil, and a second switch is provided on said weak power line between said weak power source and said second relay coil.
5. A strong and weak current converting device according to claim 1, wherein said first relay coil and said second relay coil are a set of mechanical interlocking contactors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221045.2U CN210955738U (en) | 2019-12-12 | 2019-12-12 | Strong and weak current conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221045.2U CN210955738U (en) | 2019-12-12 | 2019-12-12 | Strong and weak current conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210955738U true CN210955738U (en) | 2020-07-07 |
Family
ID=71376773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922221045.2U Active CN210955738U (en) | 2019-12-12 | 2019-12-12 | Strong and weak current conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210955738U (en) |
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2019
- 2019-12-12 CN CN201922221045.2U patent/CN210955738U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: 262700 South side of Wenmiao Street, Shouguang City, Weifang City, Shandong Province (inside the technical school campus) Patentee after: Shouguang Yuxiang Intelligent Installation Engineering Co.,Ltd. Country or region after: China Address before: No.344, Sanlin Road, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI SHANGKE INFORMATION TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |