CN100590556C

CN100590556C - Continuous low power heating control circuit for soybean milk machine

Info

Publication number: CN100590556C
Application number: CN200810065141A
Authority: CN
Inventors: 刘显武; 廖序; 肖凌
Original assignee: 刘显武; 廖序; 肖凌
Current assignee: Shenzhen Longood Intelligent Electric Co Ltd
Priority date: 2008-01-08
Filing date: 2008-01-08
Publication date: 2010-02-17
Anticipated expiration: 2028-01-08
Also published as: CN101226382A

Abstract

The invention relates to a continuous low power heating controlling circuit of soybean milk machine, which comprises a heater, a controlled silicon switch which output is connected with the heater, atrigger circuit unit connected with the control end of the controlled silicon switch, a single chip connected with the trigger circuit unit, a temperature sensor connected with the single chip, a power supply voltage checking circuit connected with the single chip, a power supply zero-crossing signal unit connected with the single chip and an anti-overflow signal unit connected with the single chip. The input of the controlled silicon switch is connected with one electrode of the power supply, one end of the heater not connected with the controlled silicon switch is connected with another electrode of the power supply, and the single chip via a power supply reducing circuit is connected with the power supply. The invention uses the controlled silicon switch to control the working voltage of the heater to regulate the heating power of the heater according to temperature and voltage, which can boil slurry mildly all the time via regulating powers in different states, to make soybean milkmore viscid, with high emulsified degree, high density, fine taste and easy adsorption by human body. The invention can obtain consist power output from different electrical network voltages, to heatat low power without pasting pipe and pan. The controlled silicon switch has long service life. And the heating at low power can save energy further.

Description

Continuous low power heating control circuit for soybean milk machine

Technical field

The present invention is about a kind of soy bean milk making machine heating control circuit, especially a kind of continuous low power heating control circuit for soybean milk machine.

Background technology

Existing soy bean milk making machine adopts relay control heating, output power (heating power) can only be accomplished total power or half-power heating, generation is overflowed in that the general meeting of mashing off boiling stage power is bigger than normal, at this moment can only stop to add and reheat again after the hot standby liquid level falls after rise, again can once more overflow and stop heating, so circulation thereafter.Actual a kind of boiling and the alternating state that does not seethe with excitement of being in when this makes and to boil soya-bean milk can not be realized the effect of the abundant decomposing protein of the continuous infusion of slow fire.And easily cause during heating tube power mashing off bigger than normal and stick with paste pipe and burn, harmful and easy cleaning not, nominal power time that then preheats less than normal is long, causes wholely to do that to starch process time long.Simultaneously this mode also can shorten the relay mechanical electric life-span, and bad to the applicability of different electrical networks, becomes problem such as big along with there is heating power in the rising of line voltage.Therefore, be necessary existing soy bean milk making machine heating control mode is improved.

Summary of the invention

Therefore the object of the present invention is to provide a kind of continuous low power heating control circuit for soybean milk machine, it controls the operating voltage of heater element by trigger circuit unit controls transwitch, thereby realize the continuous low power heating, can guarantee that soya-bean milk can continuous little boiling, but can not overflow and stop heating.

According to above-mentioned purpose of the present invention, a kind of continuous low power heating control circuit for soybean milk machine is proposed, comprise heater element, output terminal connects the transwitch of heater element, the trigger circuit unit that connects the control end of transwitch, the single-chip microcomputer that connects the trigger circuit unit, the temperature sensor that connects single-chip microcomputer, the voltage detection circuit unit that connects single-chip microcomputer, the anti-overflow signal element that connects the power supply zero cross signal unit and the connection single-chip microcomputer of single-chip microcomputer, the input end of transwitch connects an electrode of power supply, and the end that heater element is not connected with transwitch connects another electrode of power supply, and single-chip microcomputer is connected with power supply by a power supply reduction voltage circuit unit.

The present invention controls the operating voltage of heater element with transwitch, according to temperature, voltage, carry out power adjustments in the mashing off different phase, be in little fluidized state in the time of can making mashing off always, make the soya-bean milk infusion abundant, emulsifiability concentration improves, the more favourable absorption of human body of using, and the power output identical to different line voltage scalable, pipe, Non-burnt pot, non-stick pan are not stuck with paste in the miniwatt heating, transwitch is not influenced by mechanical life, and comprehensive life is longer than relay, and the miniwatt mashing off is energy savings more.

Description of drawings

Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.

In the accompanying drawing,

Fig. 1 is for realizing the synoptic diagram of continuous low power heating control circuit for soybean milk machine of the present invention;

Fig. 2 presses the work synoptic diagram of chopping way for one embodiment of the invention transwitch;

Fig. 3 is the work synoptic diagram of another embodiment of the present invention transwitch by the phase shift triggering mode;

Fig. 4 is one embodiment of the invention control circuit figure.

Embodiment

Fig. 1 is the synoptic diagram of continuous low power heating control circuit for soybean milk machine of the present invention.Continuous low power heating control circuit for soybean milk machine of the present invention comprises heater element 1, output terminal connects the transwitch 2 of heater element 1, the trigger circuit unit 3 that connects the control end of transwitch 2, the single-chip microcomputer 4 that connects trigger circuit unit 3, the temperature sensor 5 that connects single-chip microcomputer 4, the voltage detection circuit unit 6 that connects single-chip microcomputer 4, the anti-overflow signal element 7 that connects the power supply zero cross signal unit 9 and the connection single-chip microcomputer 4 of single-chip microcomputer 4, the input end of transwitch 2 connects a utmost point of power supply, and the end that heater element 1 is not connected with transwitch 2 connects an other utmost point of power supply.Voltage detection circuit unit 6 connects the two poles of the earth of power supply, and single-chip microcomputer 4 is connected with power supply by a power supply reduction voltage circuit unit 8, thereby obtains working power.

Anti-overflow signal element 7, temperature sensor 5 all is located on the soy bean milk making machine body (not shown) with heater element 1, with the temperature that records body and data are passed to single-chip microcomputer 4 deal with.

Signal by identification anti-overflow signal element 7, after soya-bean milk boiling overflow 2 to 3 times, automatically calculate a suitable heating power, single-chip microcomputer 4 is controlled the operating voltage of heater element 1 by trigger circuit unit 3 control transwitchs 2 then, thereby realize the continuous low power heating, guarantee that soya-bean milk can continuous little boiling, but can not overflow and stop heating.

Trigger circuit unit 3 output control signals allow transwitch 2 carry out make-break operation, for example the cycle is controlled less than 5 seconds break-make, again for example, copped wave as shown in Figure 2, promptly control the cycle of alternating current conducting and shutoff, dash area is a conducting state, perhaps phase shift as shown in Figure 3, promptly trigger the conducting moment of control alternating current, thereby control ON time by phase shift, dash area is a conducting state, make the voltage that is carried in heater element 1 two ends can make heater element 1 realize the miniwatt heating, thereby guarantee that soya-bean milk can continuous little boiling, but can not overflow and stop heating.

The present invention controls heater elements 1 with transwitch 2, according to temperature, voltage, carry out power adjustments in the mashing off different phase, be in little fluidized state in the time that mashing off can being made always, the power output identical to different line voltage scalable, pipe is not stuck with paste in the miniwatt heating, and the transwitch comprehensive life is longer than relay, the power adjustments energy savings.

In sum, the present invention can control transwitch 2 by trigger circuit unit 3 according to detected temperatures, voltage, zero passage, anti-overflow signal, carries out power adjustments, realizes that miniwatt heats continuously.

Figure 4 shows that and realize a kind of circuit form of the present invention, this circuit diagram is realized the present invention with the available circuit module.

The above for the person of ordinary skill of the art, can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the scope that the present invention protects.

Claims

1, a kind of continuous low power heating control circuit for soybean milk machine, it is characterized in that, comprise heater element, output terminal connects the transwitch of heater element, the trigger circuit unit that connects the control end of transwitch, the single-chip microcomputer that connects the trigger circuit unit, the temperature sensor that connects single-chip microcomputer, the voltage detection circuit unit that connects single-chip microcomputer, the anti-overflow signal element that connects the power supply zero cross signal unit and the connection single-chip microcomputer of single-chip microcomputer, the input end of transwitch connects an electrode of power supply, and the end that heater element is not connected with transwitch connects another electrode of power supply, single-chip microcomputer is connected with power supply by a power supply reduction voltage circuit unit, wherein, signal by identification anti-overflow signal element, after soya-bean milk boiling overflow 2 to 3 times, automatically calculate a suitable heating power, single-chip microcomputer is controlled the operating voltage of heater element by trigger circuit unit controls transwitch then, the control signal of trigger circuit unit output allows transwitch carry out quick make-break operation, and this make-break operation mode is copped wave, phase shift or cycle are controlled less than 5 seconds break-make.

2, continuous low power heating control circuit for soybean milk machine as claimed in claim 1 is characterized in that, anti-overflow signal element, temperature sensor and heater element all are located on the soy bean milk making machine body.