CN201717813U

CN201717813U - Electronic PTC starter without power consumption

Info

Publication number: CN201717813U
Application number: CN2010202681230U
Authority: CN
Inventors: 陈金满; 汪健; 徐遵宏
Original assignee: 朱德宇
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2011-01-19
Anticipated expiration: 2020-07-23

Abstract

The utility model relates to an electronic PTC starter circuit without power consumption. A PTC (positive temperature coefficient) heat-sensitive resistor and a bidirectional controllable silicon are connected in series; meanwhile, a control plate is connected at one end of the PTC resistor and on a G electrode of the bidirectional controllable silicon in parallel; the control plate is composed of a rectifying bridge, a capacitor and a resistor; the capacitor and the resistor are connected between the positive and negative ends of the rectifying bridge in parallel, and the AC end of the rectifying bridge is respectively connected with the G electrode of the bidirectional controllable silicon and the connecting end between the PTC heat-sensitive resistor and an auxiliary winding of a compressor. The electronic PTC starter circuit utilizes the charging characteristic of the capacitor to control the triggering on and off of the bidirectional controllable silicon, so as to achieve the purpose of controlling current passing through the auxiliary winding, thereby thoroughly solving the technical difficulty that power consumption is still incurred on the auxiliary winding of the compressor and the starter at the stage of normal running after the compressor of the starter commonly used at present is started. Therefore, no power consumption is realized in the true sense.

Description

Electronic type does not have power consumption PTC starter

Technical field

The utility model relates to the refrigerant compressor starter element in the household electrical appliances, specifically is a kind of electronic type power consumption starter.

Background technology

Present widely used refrigerant compressor starter circuit mainly contains following several: the auxiliary winding 2 that the compressor start circuit of the common PTC starter of (one) adapted as shown in Figure 3 works when mainly comprising compressor start, main winding 1 when being used in stable operation, PTC resistance (being semistor) 3 is serially connected with on the auxiliary winding, little during compressor start owing to PTC resistance 3 temperature low resistance, there is this moment sizable electric current to flow through the auxiliary winding 2 of compressor by PTC resistance 3, along with the prolongation of time owing to produce heat PTC resistance 3 and increase along with the rising resistance of temperature, thereby the electric current that flows through auxiliary winding is reduced, but because PTC resistance 3 resistances can infinitely not increase, so when compressor normally moves, still have certain electric current to pass through in the auxiliary winding loop, thereby produce certain power consumption, this is to cause meaningless waste.The auxiliary winding 2 that works when (two) the compressor start circuit of the energy-saving starter of adapted as shown in Figure 4 is for compressor start has been connected in series main PTC resistance 3, bidirectional triode thyristor 4, simultaneously at an end of the control G of bidirectional triode thyristor 4 utmost point (promptly controlling the utmost point) and the main PTC resistance 3 secondary PTC resistance 5 that has been connected in parallel, the current trigger bidirectional triode thyristor conducting that this starter flows through through secondary PTC resistance 5 when compressor start, make the compressor start current segment flow through auxiliary winding shunting by main PTC resistance 3, along with the rising of the prolongation PTC resistance temperature of time makes resistance increase the electric current of the auxiliary winding of flowing through is reduced, same secondary PTC of principle resistance 5 makes the electric current that flows through the bidirectional triode thyristor G utmost point reduce because resistance increases, when this undercurrent bidirectional triode thyristor when triggering the bidirectional triode thyristor conducting turn-offs, thereby make main PTC resistance 3 no powers no longer produce power consumption, but on secondary PTC resistance 5 and the auxiliary winding of compressor, still have a less current to pass through, so still have certain power wastage.

The utility model content

The purpose of this utility model is exactly to overcome the defective that exists in the prior art, provides a kind of compressor start electronic type that later normal operating phase does not really have power consumption not have the compressor start device of power consumption.

The technical scheme that realizes the utility model purpose is: the mode of the auxiliary winding 2 serial connection starters that work during still for compressor start, specifically be by semistor, bidirectional triode thyristor, trigger circuit triggers circuit control panel formula is formed, semistor and bidirectional triode thyristor are connected in series on the auxiliary winding of compressor, the G interpolar trigger circuit triggers circuit control panel in parallel formula of semistor and the auxiliary winding link and the bidirectional triode thyristor of compressor, this trigger circuit triggers circuit control panel formula is by rectifier bridge, electric capacity, resistance constitutes, rectifier bridge just, shunt capacitance between negative terminal, resistance, the alternating current end of rectifier bridge connects the G utmost point of bidirectional triode thyristor and the auxiliary winding link of semistor and compressor separately, this trigger circuit triggers circuit control panel formula is directly controlled the conducting and the shutoff of bidirectional triode thyristor, thereby reach the electric current of control flows, and then the power consumption of control starter through auxiliary winding.

Electronic type of the present utility model does not have power consumption PTC starter circuit, adopt circuits for triggering control board 4 to substitute by main PTC resistance mouth series connection bidirectional triode thyristor 4, the secondary PTC resistance in an end of the control utmost point (G) of bidirectional triode thyristor 4 and main PTC resistance 3 has been connected in parallel the energy-saving starter of secondary PTC resistance simultaneously, ingenious just the design with rectifier bridge, shunt capacitance between negative terminal, resistance, the alternating current end of rectifier bridge connects the circuit of the auxiliary winding link of the G utmost point of bidirectional triode thyristor and semistor and compressor separately, utilize the charge characteristic of electric capacity to control The Trigger of Bidirectional Triode Thyristor conducting and shutoff, and then reach the purpose of control flows through the electric current of auxiliary winding, thoroughly having solved the starter that generally uses at present exists the later normal operating phase of compressor start still to have the technical barrier of power consumption on auxiliary winding of compressor and starter, realized no power consumption truly, the assurance of device is provided for the efficiency grade that improves compressor to greatest extent.

Description of drawings

Fig. 1 is that the electronic type of the utility model embodiment does not have power consumption PTC starter circuit schematic diagram

Fig. 2 is that the electronic type of the utility model embodiment does not have the schematic diagram of power consumption PTC starter applications at the compressor start circuit

Fig. 3 be in the present technology adapted compressor start circuit diagram of common PTC starter

Fig. 4 be in the present technology adapted compressor start circuit diagram of energy-saving starter

Embodiment

Below in conjunction with embodiment the utility model is further described, following embodiment only is used for the technical solution of the utility model, to not restriction of the utility model.

Embodiment

Electronic type does not as shown in Figure 1 have power consumption PTC starter, it is mainly used in the startup of refrigerant compressor, compressor winding Y has operate as normal main winding 1, auxiliary around 2, starter is by semistor 3, bidirectional triode thyristor 4, circuits for triggering control board P forms, semistor 3 and bidirectional triode thyristor 4 are connected in series in the auxiliary on 2 groups of compressor, semistor 3 and auxiliary winding 2 links of compressor and the G interpolar circuits for triggering control board in parallel P of bidirectional triode thyristor 4, this circuits for triggering control board P is by rectifier bridge 6, electric capacity 7, resistance 8 constitutes, rectifier bridge 6 just, shunt capacitance 7 between negative terminal, resistance 8, the alternating current end of rectifier bridge 6 connects the G utmost point of bidirectional triode thyristor 4 and auxiliary winding 2 links of semistor 3 and compressor separately, circuits for triggering control board P directly controls the conducting and the shutoff of bidirectional triode thyristor 4, thereby reaches the effect of control flows through the electric current of auxiliary winding 2.

As shown in Figure 2 when compressor energized 10 and closed temperature detect switch (TDS) 9 begin to start electric current by the auxiliary winding 2 of compressor, rectifier bridge is to 6, electric capacity 7 triggers bidirectional triode thyristor 4 conductings, make controllable silicon 4 be in "on" position, this moment, the part of compressor start electric current flow through auxiliary winding 2 by bidirectional triode thyristor 4 and PTC resistance 3, electric capacity 7 also begins charging simultaneously, prolongation electric capacity 7 along with the time in the time of compressor start is constantly charging, the terminal voltage of the electric capacity charging current that constantly raises reduces gradually, below electric current is reduced to the trigger current of controllable silicon 4 or when keeping electric current, controllable silicon 4 is automatically shut down, the compressor start process finishes, this moment, compressor was in stable operation stage, and the electric current of compressor is all by main winding 1.Compressor quits work after thermostat disconnects, resistor 8 begins electric capacity 7 is discharged when a little, thereby makes the electric capacity two ends produce potential difference so that starter starts once more, when electric capacity is finished discharge, then starter recovers, and compressor starts once more after the wait thermostat closure.

Briefly: when compressor loads power supply 10, closed temperature detect switch (TDS) compressor start is finished the The Trigger of Bidirectional Triode Thyristor conducting by the charging of electric capacity 7, realizes the start-up routine of compressor; After disconnecting, realizes by temperature detect switch (TDS) 9 recovery routine of starter, for the next one startup of compressor is got ready by the discharge process of 8 pairs of electric capacity 7 of resistance.The charging interval of electric capacity is the start-up time of starter during compressor start, and resistor is the recovery time of starter to time of capacitor discharge.

Electric capacity is finished charging, and the compressor start EP (end of program) entered normal operating phase after bidirectional triode thyristor automatically shut down, and does not have electric current to flow through on the auxiliary winding loop of compressor normal operating phase, thereby makes starter and the auxiliary winding of compressor not produce power consumption.

More with application at present now, the less energy-saving starter of power consumption is shown in Figure 4 comparing, this programme substitutes secondary PTC resistance 5 with a circuits for triggering control board 4, and make the compressor start EP (end of program) enter normal operating phase, on the auxiliary winding loop of compressor normal operating phase, there is not electric current to flow through, eliminate the power consumption that secondary PTC resistance 5 produces, realized no power consumption truly.

Claims

1. the no power consumption PTC starter of an electronic type, be serially connected with on the auxiliary winding of compressor, it is characterized in that: be by semistor, bidirectional triode thyristor, the circuits for triggering control board is formed, semistor and bidirectional triode thyristor are connected in series on the auxiliary winding of compressor, semistor and the auxiliary winding link of compressor and the G interpolar circuits for triggering control board in parallel of bidirectional triode thyristor, this circuits for triggering control board is by rectifier bridge, electric capacity, resistance constitutes, rectifier bridge just, shunt capacitance between negative terminal, resistance, the alternating current end of rectifier bridge connect the G utmost point of bidirectional triode thyristor and the auxiliary winding link of semistor and compressor separately.