CN2887009Y - Device which automatically connects with standby electrical appliance - Google Patents
Device which automatically connects with standby electrical appliance Download PDFInfo
- Publication number
- CN2887009Y CN2887009Y CN 200620088977 CN200620088977U CN2887009Y CN 2887009 Y CN2887009 Y CN 2887009Y CN 200620088977 CN200620088977 CN 200620088977 CN 200620088977 U CN200620088977 U CN 200620088977U CN 2887009 Y CN2887009 Y CN 2887009Y
- Authority
- CN
- China
- Prior art keywords
- solid
- state relay
- current sensor
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a device that can automatically switch on electric apparatuses to solve the problem that prior devices that can automatically switch on electric apparatuses has a high request in circumstances, does not work stably and is easy to be disturbed and not reliable. The utility model is characterized in that the utility model consists of a voltage sensor, a current sensor and a drive circuit and that the drive circuit consists of a solid-state relay acting as a switch and a synchronous motor and that the output of the voltage sensor is connected with the positive pole of the solid-state relay by a diode and the output of the current sensor is connected with the negative pole of the solid-state relay and that the input of the current sensor is connected in series in the power supply loop of the backup devices and that plural parallel back devices are connected with the output axis of the motor by a rotatable metallic brush and the metallic brush is fixed with the output axis of the motor. The utility model has the advantages that the utility model can automatically switch on the backup loads, has a good environmental adaptation and reliability and is suitable for resistive loads, inductive loads and capacitive loads.
Description
Technical field
The utility model relates to the standby electric loading of automatic connection, makes standby load take over the device of load fault work automatically.
Background technology
Quit work for preventing that equipment (load) from hindering for some reason, usually need to dispose stand-by equipment, to take over the work of faulty equipment at any time.When starting stand-by equipment work, need start-up by hand sometimes, this has not only increased people's labour intensity, has also increased potential safety hazard sometimes under dangerous environment.
At the problems referred to above, existing a kind of device that utilizes the automatic connection electrical spare parts of singlechip technology, owing to used single-chip microcomputer, it is higher to environment requirement, is subject to disturb, and is comparing in the rugged environment, and work is extremely unstable, and reliability is relatively poor.It only limits to resistive load simultaneously.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of device of automatic connection electrical spare parts.
The purpose of this utility model is achieved in that it is made up of voltage sensor, current sensor and drive circuit, drive circuit is made up of solid-state relay and synchronous machine as switch, the output of voltage sensor connects the positive pole of solid-state relay by diode, the negative pole of the output termination solid-state relay of current sensor, the input of current sensor is connected in the current supply circuit of stand-by equipment (load), several stand-by equipments parallel with one another (load) link to each other with motor output shaft by rotating brush, and brush is fixed on the motor output shaft.
The course of work is: when a certain load cut-off, the output voltage of current sensor is zero, the solid-state relay action, motor rotates, and drives brush and rotates, and connects next load, this moment, the output voltage of current sensor reached critical point, promptly greater than the output voltage of voltage sensor, solid-state relay is failure to actuate, the motor stall.
The utility model is compared with the prior art scheme, and it can connect standby load automatically, and environmental suitability is strong, the reliability height, and simultaneous adaptation is in resistive, perception and capacitive load.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing is an electrical schematic diagram of the present utility model.
Embodiment
Rectification power circuit PT, D
1-D
4As voltage sensor, voltage doubling rectifing circuit is as current sensor, and it is by current transformer CT, rectifying tube D
7, D
8With filter capacitor C
2, C
3Form, drive circuit is made up of solid-state relay and the synchronous machine T as switch, and the output of voltage sensor is by diode D
6Connect the positive pole of solid-state relay, the negative pole of the output termination solid-state relay of current sensor, the input of current sensor is connected in the current supply circuit of stand-by equipment (load), eight stand-by equipments parallel with one another (load) Z
1-Z
8Link to each other with motor output shaft by rotating brush S, brush is fixed on the motor output shaft.
The course of work is: when a certain load cut-off, the output voltage of current sensor is zero, the solid-state relay action, motor rotates, and drives brush and rotates, and connects next load, this moment, the output voltage of current sensor reached critical point, promptly greater than the output voltage of voltage sensor, solid-state relay is failure to actuate, the motor stall.
Claims (2)
1, a kind of device of automatic connection electrical spare parts, it is characterized in that: it is made up of voltage sensor, current sensor and drive circuit, drive circuit is made up of solid-state relay and synchronous machine as switch, the output of voltage sensor connects the positive pole of solid-state relay by diode, the negative pole of the output termination solid-state relay of current sensor, the input of current sensor is connected in the current supply circuit of stand-by equipment, several stand-by equipments parallel with one another link to each other with motor output shaft by rotating brush, and brush is fixed on the motor output shaft.
2, according to the device of the described automatic connection electrical spare parts of claim 1, it is characterized in that: said voltage sensor is rectification power circuit PT, D
1-D
4, said current sensor is a voltage doubling rectifing circuit, it is by current transformer CT, rectifying tube D
7With filter capacitor C
2, C
3Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088977 CN2887009Y (en) | 2006-01-17 | 2006-01-17 | Device which automatically connects with standby electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088977 CN2887009Y (en) | 2006-01-17 | 2006-01-17 | Device which automatically connects with standby electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2887009Y true CN2887009Y (en) | 2007-04-04 |
Family
ID=37962095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620088977 Expired - Fee Related CN2887009Y (en) | 2006-01-17 | 2006-01-17 | Device which automatically connects with standby electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2887009Y (en) |
-
2006
- 2006-01-17 CN CN 200620088977 patent/CN2887009Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |