CN2409708Y - Automatic converting double-voltage power - Google Patents
Automatic converting double-voltage power Download PDFInfo
- Publication number
- CN2409708Y CN2409708Y CN 99254548 CN99254548U CN2409708Y CN 2409708 Y CN2409708 Y CN 2409708Y CN 99254548 CN99254548 CN 99254548 CN 99254548 U CN99254548 U CN 99254548U CN 2409708 Y CN2409708 Y CN 2409708Y
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- China
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- resistance
- rectifier bridge
- voltage
- circuit
- diode
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- 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 relates to an automatic converting double-voltage power supply, which is composed of a casing, an electric delay circuit, a voltage automatic change-over circuit and an output circuit which are arranged in the casing together. The utility model is suitable for various electromagnetic brakes and electromagnetic clutches. When the utility model is used as a direct current power supply, the attracting voltage is provided by the power supply firstly and then is changed into the sustain voltage and always follows to make the power consumption of the electromagnetic clutches (electromagnetic brakes) and the temperature rise at running time reduced. The utility model has the advantage of high reaction speed for opening and closing a machine and can be operated under the condition of natural cooling. The defects of single voltage, high temperature rise, need of forced-air cooling on the operation and late closing the machine of the existing power supply are changed.
Description
The utility model belongs to rectifying power supply apparatus
Electromagnetic brake (electromagnetic clutch), usually through the rectifier cell commutation supply voltage, pick-up voltage is kept voltage to work and is used single voltage, so electromagnetic brake is in service, has both wasted electric energy, and temperature rise is high again, can only move in forced air cooling.
According to above-mentioned situation, the purpose of this utility model provides a kind of automatic conversion double-voltage electric power.
The purpose of this utility model is achieved in that by electronic delay circuit; the voltage automatic switching circuit; output circuit and protective circuit collection are loaded on the printed circuit board; circuit board is encapsulated in the housing; switch on simultaneously with motor; the voltage that requires during the output electromagnetic brake adhesive earlier of this power supply; brake adhesive work; enter the work maintenance stage; after the time-delay of power supply through setting; automatically be transformed into and keep voltage; keep with low-voltage, can reduce brake power consumption about 50%, thereby make brake reduce power consumption; reduce operating temperature rise, can be in natural air cooled operate as normal down.Because adopt controllable silicon as output, the startup-shutdown reaction speed is fast, has overcome the deficiency that existing power supply work lags.
Because said structure, that the utility model has is easy for installation, working stability, power savings show chopsticks, and popularizing value is very high.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1: be schematic appearance of the present utility model;
Fig. 2: be circuit theory diagrams of the present utility model;
In conjunction with Fig. 1, housing of the present utility model, (1) is housing, and (2), (3) are the elongated slot on the housing, and the binding post on the electron plate advances wire hole and fastening bolt respectively.
In conjunction with Fig. 2, circuit theory diagrams of the present utility model, electronic delay circuit, by an end of resistance (4), an end of capacitor (5) and the base stage of triode (6), this three end is connected, the collector electrode of one end of resistance (7), triode (6) and the control utmost point of single-phase silicon-controlled (8), this three end is connected, the other end of resistance (4), (7) is connected with the positive output end of rectifier bridge (9), the emitter of the other end of capacitor (5) and triode (6) is connected with the negative output terminal of rectifier bridge (9); Voltage conversion circuit, positive and negative two ends by single-phase silicon-controlled (8), positive-negative output end with rectifier bridge (9) is connected respectively, two ac input ends of rectifier bridge (9) are connected with the two ends of resistance (10) respectively, one end of resistance (11) is connected with the V point of AC power, the other end links to each other with the interface B of resistance (10), rectifier bridge (9), and an end of capacitor (12) is connected with the O point of AC power, and the other end is connected with the interface C of resistance (10), rectifier bridge (9); Output circuit, an ac input end by an end of two-way trigger tube (13) and resistance (10), capacitor (12), rectifier bridge (9), the interface C of this three end is connected, the other end with two-phase controllable silicon (14) but be connected in addition the two poles of the earth of two-way keyholed back plate (14) of the control utmost point be in series and be connected with electromagnetic brake coil (20), rectifier diode (17); Protective circuit; by the two ends of diode (19), being in parallel with electromagnetic brake coil (20) is connected, and guarantees that diode (19) is opposite with the polarity of DC power supply; resistance (16) is in series with capacitor (15) and is connected, and two ends are in parallel with the anode and cathode of controllable silicon (14) and are connected in addition.When motor is switched on, the automatic conversion double-voltage electric power that is connected on the motor circuit is powered to electromagnetic brake, because capacitor (5) both end voltage can not transition in this power supply, the base stage low level of triode (6) and ending, its collector electrode output high level, trigger the one-way SCR conducting by resistance (7) current limliting, make the ac input end conducting of rectifier bridge (9), (B, the C two ends are straight-through) short circuit resistance (10), reduced the current-limiting resistance value in the bidirectional triode thyristor circuits for triggering, make bidirectional triode thyristor obtain the trigger current of full voltage conducting, electromagnetic brake coil (20) starts under full voltage, the electromagnetic brake adhesive.Simultaneously electric current by resistance (4) to capacitor (5) charging, when charging voltage reaches triode (6) conducting, the collector electrode output low level, one-way SCR (8) has lost trigger current, under the effect of pulsating current and turn-off.The ac input end open circuit of rectifier bridge (9), resistance (10) is sealed in the bidirectional triode thyristor circuits for triggering, circuits for triggering current-limiting resistance value is strengthened, trigger current reduces thereupon, reduced the angle of flow of bidirectional triode thyristor, reduced the conducting voltage of bidirectional triode thyristor, electromagnetic brake coil (20) is operated under the low-voltage of keeping, this power supply full voltage is transformed into the delay time of low-voltage, the appearance value of switchable capacitor (5).Shut down when cutting off motor power, capacitor (5) has been done preparation by the very fast discharge of Base-Emitter of triode (6) for starting time-delay next time, and therefore starting electromagnetic brake once more can repeat said process smoothly.Diode in this power supply (19) is in parallel with electromagnetic brake coil (20) reversed polarity; the instantaneous high pressure that coil produces when shutting down for releasing is established; resistance (16) and capacitor (15) series connection back are connected in parallel with bidirectional triode thyristor; for preventing surge voltage; place restrictions on voltage build-up rate and establish; this power supply is on diode (17) line attachment the time; be output as halfwave rectifier; if will change full-wave rectification into; only need pull down halfwave rectifier diode (17); two ac input ends and the V of rectifier bridge (18); 2 of E are connected; and disconnection D; the E line, the anode and the negative terminal of its direct current output are respectively with the be connected in parallel some A of electromagnetic brake coil (20) with diode (19); D is connected; guarantee that the A point just connects, the D point connects negative.
Double-voltage electric power should be changed automatically, after satisfying the full voltage normal starting of electromagnetic brake, after time-delay, automatically voltage is dropped to the low value of permission, keep the adhesive work of brake, thereby reduced the power of brake, reduce the work temperature rise of consumed power and brake.And can can't use the particular surroundings of forced air cooling for some in natural air cooled work down, use electromagnetic brake that convenience is provided.
Owing to should change the characteristics of double-voltage electric power automatically, install simple, the power consumption that obvious reduction electromagnetic braking is arranged, temperature rise during reduction work, thus the fault of minimizing brake has tangible economic effect, promote easily, manufacturing process is simple, as long as note workmanship, and can fine enforcement the utility model.
Claims (3)
1, a kind of automatic conversion double-voltage electric power is made up of housing, electronic delay circuit, voltage conversion circuit, output circuit, protective circuit, it is characterized in that:
The both ends of the surface of a, described housing (1) have elongated slot (2), (3), respectively over against the entrance hole and the fastening bolt of binding post;
B, described electronic delay circuit: by an end of resistance (4), an end of capacitor (5) and the base stage of triode (6), this three end is connected, the collector electrode of one end of resistance (7), triode (6) and the control utmost point of single-phase silicon-controlled (8), this three end is connected, the other end of resistance (4), (7) is connected with the positive output end of rectifier bridge (9), the emitter of the other end of capacitor (5) and triode (6) is connected with the negative output terminal of rectifier bridge (9) and forms;
C, described voltage conversion circuit: by the positive and negative two ends of single-phase silicon-controlled (8), the positive-negative output end that corresponds respectively to rectifier bridge (9) is connected, two ac input ends of rectifier bridge (9) join with the two ends of resistance (10) respectively, one end of resistance (11) is connected with the V point of AC power, the other end is connected with the interface B of resistance (10), rectifier bridge (9), one end of capacitor (12) is connected with the O point of AC power, and the other end is connected with the tie point C of resistance (10), rectifier bridge (9) and forms;
D, described output circuit: by an ac input end of an end of two-way trigger tube (13) and resistance (10), capacitor (12), rectifier bridge (9), the tie point C of this three end is connected, the other end is connected with the control utmost point of bidirectional triode thyristor (14), and the two poles of the earth in addition of bidirectional triode thyristor (14) and coil (20), the rectifier diode (17) of electromagnetic brake are in series and connect to form;
E, described protective circuit: being in parallel with electromagnetic brake coil (20) by the two ends of diode (19) is connected; and guarantee that diode (19) is opposite with the polarity of DC power supply; resistance (16) is in series with capacitor (15) and is connected, and is in parallel with the anode and cathode of controllable silicon (14) and connects to form.
2, automatic conversion double-voltage electric power according to claim 1, the resistance (10) that it is characterized in that described voltage conversion circuit is in parallel with two ac input ends of rectifier bridge (9) and is connected.
3, automatic conversion double-voltage electric power according to claim 1, the diode (17) that it is characterized in that output circuit is halfwave rectifier, if in the time of will changing full-wave rectification into, only need pull down halfwave rectifier diode (17), two ac input ends of rectifier bridge (18) are connected with 2 of V, E, and disconnect D, E line, the anode and the negative terminal of its direct current output, be connected be connected in parallel an A, the D of diode (19) with electromagnetic brake coil (20) respectively, guarantee that the A point just connects, the D point connects negative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254548 CN2409708Y (en) | 1999-11-22 | 1999-11-22 | Automatic converting double-voltage power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254548 CN2409708Y (en) | 1999-11-22 | 1999-11-22 | Automatic converting double-voltage power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409708Y true CN2409708Y (en) | 2000-12-06 |
Family
ID=34038147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99254548 Expired - Fee Related CN2409708Y (en) | 1999-11-22 | 1999-11-22 | Automatic converting double-voltage power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409708Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808874A (en) * | 2012-08-01 | 2012-12-05 | 中国神华能源股份有限公司 | Electromagnetic brake control device |
| CN102857127A (en) * | 2012-10-10 | 2013-01-02 | 苏州安固科技有限责任公司 | Double-voltage circuit board for brake coil |
-
1999
- 1999-11-22 CN CN 99254548 patent/CN2409708Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808874A (en) * | 2012-08-01 | 2012-12-05 | 中国神华能源股份有限公司 | Electromagnetic brake control device |
| CN102808874B (en) * | 2012-08-01 | 2015-08-12 | 中国神华能源股份有限公司 | Electromagnetic brake control device |
| CN102857127A (en) * | 2012-10-10 | 2013-01-02 | 苏州安固科技有限责任公司 | Double-voltage circuit board for brake coil |
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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 |