CN2049433U - Voltage regulating relay - Google Patents
Voltage regulating relay Download PDFInfo
- Publication number
- CN2049433U CN2049433U CN 89200187 CN89200187U CN2049433U CN 2049433 U CN2049433 U CN 2049433U CN 89200187 CN89200187 CN 89200187 CN 89200187 U CN89200187 U CN 89200187U CN 2049433 U CN2049433 U CN 2049433U
- Authority
- CN
- China
- Prior art keywords
- voltage regulating
- pulse generator
- regulating relay
- potentiometer
- triode thyristor
- 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.)
- Withdrawn
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- Relay Circuits (AREA)
Abstract
The utility model discloses a voltage regulating relay, comprising a voltage regulating part and a switch part. All electronic devices are welded on a printed circuit board, a bidirectional controlled silicon BCR is installed on a heat radiating fin, and the bidirectional controlled silicon BCR is positioned at the rear part of the instrument shell. A potentiometer WR and a signal input hole are placed on a front panel. The utility model has the advantages of simple structure, easy fabrication, small size, light weight, and high reliability. The voltage regulating relay can also be used in the explosion-proof environment.
Description
The utility model relates to the design and the manufacturing technology field of voltage regulator in the low-voltage electrical apparatus, relay and A.C. contactor.
At present, in low-voltage electrical apparatus, be used for the voltage regulator that mainly contains the electric induction auto-transformer type and the pressure regulation of controllable silicon change phase angle of pressure regulation.The former manufacturing process complexity consumes a large amount of metal materials.Because it rotates pressure regulation with carbon brush, the twisting resistance is bigger, is difficult to be used in automated system; Carbon brush may produce spark when rotating, and can not be used in anti-riot environment.The latter has interference to electrical network, communication, computer in automated system, and because of phase angle change produces reactive power, so the U.S., Japan have legal provisions to ban use of to this.
Aspect relay, silver will be used in the contact of contact relay and A.C. contactor (being used for three phase mains), the manufacturing process complexity.The contact action produces spark, also inapplicable explosion-proof environment.
Above-mentioned voltage regulator, relay are two kinds of discrete electrical installations.
The purpose of this utility model is, a kind of existing pressure adjusting structure is provided, and the relay structure is arranged again, and volume is little, in light weight and can be used for the Voltage regulating relay of explosion-proof environment.
The utility model structure is made up of pressure regulation part and switch sections as shown in Figure 1.Pulse generator I and pulse generator II are connected in the input of NAND gate.The pulse generator I has the potentiometer WR that regulates supply voltage; The pulse generator II has the signal input hole of control supply voltage break-make.The control utmost point of bidirectional triode thyristor BCR is linked in the output of NAND gate circuit, and bidirectional triode thyristor BCR is serially connected in the power-supplying circuit.All electronic devices in the utility model are welded on the printed circuit board (PCB), and bidirectional triode thyristor BCR is installed on the fin and places instrument shell rear portion; Potentiometer WR and signal input hole are placed on the front panel.
Circuit theory of the present utility model as shown in Figure 2, the pulse generator I is transferred the duty ratio of output square wave by WR.Pulse generator II and pulse generator I are synchronous, and its frequency is identical with supply frequency.Wherein to be in " opening " state be power connection to the signal input hole; " pass " state is that power supply disconnects.Pulse generator I and II are controlled NAND gate circuit jointly.Its output is amplified the back through triode DG and is triggered bidirectional triode thyristor BCR by pulse transformer T coupling, the conducting of control power supply and ending.Regulator potentiometer WR, change pulse generator I output duty cycle promptly change the number of trigger impulse in one-period that NAND gate is exported, the dextrorotation ripple number of its decision power turn-on in one-period.The numerical value of this number decision supply voltage.
The utility model has the advantages that, simple in structure, easy manufacturing, used electronic device is easily purchased; Can be used on explosion-proof environment, be convenient to automatic control.Its social benefit is to save a large amount of metals (silver, copper, silicon guiding principle sheet) material.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model circuit theory diagrams
Claims (2)
1, Voltage regulating relay is characterized in that being made up of pressure regulation part and switch sections, and pulse generator I and pulse generator II are connected in the output of NAND gate,
The pulse generator I has the potentiometer WR that reconciles supply voltage, and the pulse generator II has the input hole of control supply voltage break-make, and the control utmost point of bidirectional triode thyristor BCR is linked in the output of NAND gate circuit, and bidirectional triode thyristor BCR is serially connected in the power-supplying circuit.
2, the Voltage regulating relay of narrating according to claim 1 is characterized in that all electronic devices all are welded on the printed circuit board (PCB), and bidirectional triode thyristor BCR is installed on the fin and places instrument shell rear portion, and potentiometer WR and signal input hole are placed on the front panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89200187 CN2049433U (en) | 1988-12-31 | 1988-12-31 | Voltage regulating relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89200187 CN2049433U (en) | 1988-12-31 | 1988-12-31 | Voltage regulating relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2049433U true CN2049433U (en) | 1989-12-13 |
Family
ID=4858321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89200187 Withdrawn CN2049433U (en) | 1988-12-31 | 1988-12-31 | Voltage regulating relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2049433U (en) |
-
1988
- 1988-12-31 CN CN 89200187 patent/CN2049433U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |