CN104345657A - Electric control system and ice cream machine - Google Patents
Electric control system and ice cream machine Download PDFInfo
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- CN104345657A CN104345657A CN201310328940.9A CN201310328940A CN104345657A CN 104345657 A CN104345657 A CN 104345657A CN 201310328940 A CN201310328940 A CN 201310328940A CN 104345657 A CN104345657 A CN 104345657A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
- A23G9/04—Production of frozen sweets, e.g. ice-cream
- A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses an electric control system comprising a switch board, a drive board, a power transformer, a first AC contactor, a second AC contactor, a liquid level induction device, a stirring motor, and a refrigeration compressor. The switch board comprises a buzzer, a drive board connecting seat, a liquid level induction socket, and a single-chip microcomputer. The buzzer, the drive board connecting seat, and the liquid level induction socket are all connected with the single-chip microcomputer. The liquid level induction socket is connected with the liquid level induction device. The drive board is connected with the switch board, the first AC contactor, and the second AC contactor. The refrigeration compressor is connected with the second AC contactor. The electric control system uses the single-chip microcomputer with high performance as a master control chip so as to achieve on-off control of the stirring motor and the refrigeration compressor. Thus, the refrigeration compressor is started secondly and stopped firstly but the stirring motor is started firstly and stopped secondly. The electric control system effectively prevents a freezing problem of an ice cream machine. The invention also provides an ice cream machine.
Description
Technical field
The present invention relates to ice cream maker control technology field, particularly relate to a kind of electric-control system.The invention still further relates to a kind of ice cream maker being equipped with this electric-control system.
Background technology
Ice cream maker is generally made up of refrigeration system, stirring system and electric-control system, and wherein the Main Function of electric-control system carries out sequential control to refrigeration system and stirring system, thus completes the work such as cake processed, cleaning, discharging and refrigeration slurry.
Along with the development of electronic information technology, the electric-control system of ice cream maker is also updated and upgrades.Ice cream maker often there will be various machinery or electrical problems in operational process; the low-voltage such as caused because of factors such as the abnormal conditions that occur in the instability of user's misoperation or power-supply system or ice cream maker operational process, big current can cause damage to the electrical equipment of ice cream maker inside, even can burn electrical part time serious.
In addition, ice cream maker is when cake processed, and in freezing cylinder body, ice-cream slurry will be stirred axle rotary extrusion, and the space vacateed in cylinder body can be supplemented by slurry in feed basin, and along with the increase of cake number processed, the slurry inside feed basin reduces gradually.If user does not supplement slurry in time in feed basin, the slurry in freezing cylinder body will can not get supplementing, thus cause can not continuing to make ice cream.
When ice cream maker runs, stirring motor must be followed refrigeration compressor and be worked together, otherwise stir motor not stir, cold is constantly passed to freezing jar by refrigeration compressor, in freezing jar, slurry is caught a cold uneven, thus may by shaft to freezing, there is the hidden danger damaged in shaft, very unfavorable to the startup of stirring motor.
At present; the traditional electrical Ore-controlling Role of ice cream maker is comparatively simple; function is comparatively single; the general operation only supporting soft ice-cream machine; functional protection is not done to ice cream machine; anti-low pressure, anti-excess current, anti-scarce material and the protection of antifreeze cylinder are not especially set, can not ensure that ice cream maker long-term stability is run, have impact on the serviceable life of ice cream maker.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of electric-control system, can to the low pressure occurred in ice cream maker operational process, excess current, lack material and freeze the phenomenons such as cylinder and carry out effectively protecting in time, the stable operation of guarantee ice cream maker.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of electric-control system, comprise switching motherboard, drive plate, power transformer, the first A.C. contactor, the second A.C. contactor, liquid level induction system, stirring motor and refrigeration compressor, described switching motherboard comprises: buzzer; Drive plate Connection Block, described drive plate Connection Block is eight heart yearn sockets; Liquid level induction socket, described liquid level induction socket is connected with described liquid level induction system; Single-chip microcomputer, described single-chip microcomputer is Sai Pulasi CY8C27443 main control chip; Described hummer, described drive plate Connection Block and described liquid level induction socket is all connected with described single-chip microcomputer; First A.C. contactor, the input end of described first A.C. contactor and output terminal are provided with two groups of contacts, comprise respectively: the first input contact, first exports contact; Second input contact, second exports contact; The control end of described first A.C. contactor is provided with one group of contact, comprises the first coil and controls contact and the second coil control contact; Second A.C. contactor, the input end of described second A.C. contactor and output terminal are provided with four groups of contacts, comprising: the 3rd input contact, the 3rd exports contact; 4th input contact, the 4th exports contact; 5th input contact, the 5th exports contact; 6th input contact, the 6th exports contact; The control end of described second A.C. contactor is provided with one group of contact, comprises tertiary coil and controls contact and the 4th coil control contact; Wherein, described 3rd input contact is connected with the live wire end of civil power, and described 5th input contact is connected with the zero line side of civil power; Described first input contact, described 3rd input contact and described 4th input contact are connected respectively by short-term, and described second input contact, described 5th input contact and described 6th input contact are connected respectively by short-term; Described second coil control contact is controlled contact with described 4th coil and is connected by short-term; Described drive plate comprises: switching motherboard Connection Block, and described switching motherboard Connection Block is eight heart yearn sockets; Connecting terminal block; Current transformer, the input end of described current transformer exports contact by described connecting terminal block and described first and is connected, and the output terminal of described current transformer is connected by the input end of described connecting terminal block with described stirring motor; First relay, described first relay controls contact by described connecting terminal block with described first coil and is connected; Second relay, described second relay controls contact by described connecting terminal block with described tertiary coil and is connected; Wherein, described drive plate Connection Block is connected by eight core connecting lines with described switching motherboard Connection Block, described power transformer is connected with described drive plate, and described current transformer, described first relay and described second relay are all connected with described switching motherboard Connection Block; The output terminal and described second of described stirring motor exports contact and is connected, and the input end and the described 3rd of described refrigeration compressor exports contact and is connected, and the output terminal and the described 5th of described refrigeration compressor exports contact and is connected.
Preferably, described switching motherboard comprise further cleaning button, stop key, automatic keying, manual key, hardness number add button, hardness number subtracts button and charactron, described cleaning button, described in stop key, described automatic keying, described manual key, described hardness number add button, described hardness number subtracts button and described charactron is all connected with described single-chip microcomputer.
Preferably, described drive plate comprises further: the first transformer Connection Block, and one end of described first transformer Connection Block is connected with described connecting terminal block respectively, and the other end is connected with the input end of described power transformer; Second transformer Connection Block, one end of described second transformer Connection Block is connected with described switching motherboard Connection Block, and the other end is connected with the output terminal of described power transformer.
Preferably, described drive plate comprises rectification module further, the model of described rectification module is KBP307 type rectifier bridge, and described rectification module is connected respectively at described second transformer Connection Block, described switching motherboard Connection Block and described first relay, described second relay.
Preferably, described connecting terminal block comprises: current transformer input terminal, and one of described current transformer input terminal is connected with the input end of described current transformer, and other end and described first exports contact and is connected; Current transformer lead-out terminal, one of described current transformer lead-out terminal is connected with the output terminal of described current transformer, and other end is connected with the input end of described stirring motor; Fire line terminal, one of described fire line terminal is connected with described first input end, and other end is connected with described first transformer Connection Block; First zero terminal, one of described first zero terminal controls contact with described second coil and is connected; Second zero terminal, one and described second of described second zero terminal inputs contact and is connected, and other end is connected with described first transformer Connection Block together with described first zero terminal parallel connection also; First Control terminal, one of described first Control terminal is connected with the output terminal of described first relay, and other end controls contact with described first coil and is connected; Second Control terminal, one of described second Control terminal is connected with the output terminal of described second relay, and other end and described tertiary coil control contact and be connected.
Preferably, described drive plate comprises resettable fuse further, and described resettable fuse is connected with described second transformer Connection Block.
Preferably, described electric-control system comprises refrigeration condenser fan further, and the input end and the described 4th of described refrigeration condenser fan exports contact and is connected, and output terminal and the described 6th exports contact and is connected.
Preferably, described electric-control system comprises ice maker start-stop switch and cake microswitch processed further, and described ice maker start-stop switch, described cake microswitch processed are connected with described drive plate and described switching motherboard respectively.
Preferably, described electric-control system comprises isolating switch further, and described isolating switch is connected in the loop of described stirring motor, described current transformer and described first A.C. contactor composition, for cutting off excess current.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of ice cream maker, and described ice cream maker is equipped with above-mentioned electric-control system.
The invention has the beneficial effects as follows: the situation being different from prior art, electric-control system of the present invention is using high performance single-chip microcomputer as main control chip, by single-chip microcomputer, liquid level induction system is monitored in real time, and trigger hummer carry out lack material report to the police, simultaneously, single-chip microcomputer is monitored the running current stirring motor in real time by current transformer, and control as required the first relay and the second relay dead electricity, and then control the break-make of the first A.C. contactor and the second A.C. contactor, thus the start-stop realized stirring motor and refrigeration compressor controls, the rear startup of refrigeration compressor is first stopped, stir motor and first start rear stopping, what effectively prevent ice cream maker freezes cylinder problem.Needed for electric-control system of the present invention, peripheral circuit is less, the feature such as have that structure is simple, feature richness, manipulation are convenient and practical.
Accompanying drawing explanation
Fig. 1 is the electrical connection schematic diagram of electric-control system one embodiment of the present invention;
Fig. 2 is the structural representation of Fig. 1 breaker in middle plate;
Fig. 3 is the structural representation of drive plate in Fig. 1; And
Fig. 4 is the structural representation of liquid level induction system in Fig. 1.
Embodiment
Consult Fig. 1, Fig. 2 and Fig. 3, one embodiment of the invention provides a kind of electric-control system, comprise switching motherboard 1, drive plate 2, power transformer 3, first A.C. contactor 4, second A.C. contactor 5, liquid level induction system 6, stir motor 7, refrigeration compressor 8, refrigeration condenser fan 9, cake microswitch 10 processed, ice maker start-stop switch 11 and isolating switch 12, switching motherboard 1 is the core component of electric-control system of the present invention, comprise hummer 101, drive plate Connection Block 102, liquid level induction socket 103 and single-chip microcomputer 104, drive plate Connection Block 102 is eight heart yearn sockets; Liquid level induction socket 103 is connected with liquid level induction system 6; Single-chip microcomputer 104 is Sai Pulasi CY8C27443 main control chip, and this main control chip is a kind of PSOC device, can need flexible configuration according to peripheral function.Hummer 101, drive plate Connection Block 102 and liquid level induction socket 103 is all connected with single-chip microcomputer 104.Hummer 101 exports high and low level by the functional pin of single-chip microcomputer 104 and driven, and sends buzzer as alarm sound and prompt tone.As shown in Figure 2, switching motherboard 1 also comprises cleaning button 105, stops key 106, automatic keying 107, manual key 108, hardness number adds button 109, hardness number subtracts button 110 and charactron 111, cleaning button 105, stop key 106, automatic keying 107, manual key 108, hardness number adds button 109, hardness number subtracts button 110 and charactron 111 is all connected with single-chip microcomputer 104, if single-chip microcomputer 104 has detected that button is pressed, single-chip microcomputer 104 has driven associated components work by pin immediately.Charactron 111 is controlled to export by single-chip microcomputer 104, the running status of main display ice cream maker, when ice cream maker is not activated, single-chip microcomputer 104 controls charactron 111 and shows current power magnitude of voltage, after ice cream maker starts, single-chip microcomputer 104 controls the current value that charactron 111 shows the operation of current stirring motor 7, and when cake microswitch 10 processed is triggered and is detected by single-chip microcomputer 104, single-chip microcomputer 104 controls charactron 111 and shows cake number processed.
Please continue to refer to Fig. 1, the input end of the first A.C. contactor 4 and output terminal are provided with two groups of contacts, comprise respectively: the first input contact 401, first exports contact 402, second and inputs contact 403 and the second output contact 404, the control end of the first A.C. contactor 4 is provided with one group of contact, comprises the first coil and controls contact 405 and the second coil control contact 406; The input end of the second A.C. contactor 5 and output terminal are provided with four groups of contacts, comprise the 3rd input contact 501, the 3rd export contact 502, the 4th input contact 503, the 4th export contact 504, the 5th input contact 505, the 5th export contact 506, the 6th input contact 507 and the 6th export contact 508, the control end of the second A.C. contactor 5 is provided with one group of contact, comprises tertiary coil and controls contact 509 and the 4th coil control contact 510.Wherein, 3rd input contact 501 is connected with the live wire end L of civil power, 5th input contact 505 is connected with the zero line side N of civil power, first input contact 401, the 3rd input contact 501 and the 4th input contact 503 are connected respectively by short-term, second input contact 403, the 5th input contact 505 and the 6th input contact 507 are connected respectively by short-term, and the second coil control contact 406 is controlled contact 510 with the 4th coil and is connected by short-term.
Please continue to refer to Fig. 1 and Fig. 3, drive plate 2 is the executive component of switching motherboard 1, comprise switching motherboard Connection Block 201, connecting terminal block 202, first transformer Connection Block 203, second transformer Connection Block 204, current transformer 205, first relay 206, second relay 207, rectification module 208 and resettable fuse 209, switching motherboard Connection Block 201 is eight heart yearn sockets, the input end of current transformer 205 exports contact 402 by connecting terminal block 202 and first and is connected, the output terminal of current transformer 205 is connected with the input end stirring motor 7 by connecting terminal block 202, for detecting the running current stirring motor 7.First relay 206 controls contact 405 by connecting terminal block 202 with the first coil and is connected, for controlling the break-make of the first A.C. contactor 4, second relay 207 controls contact 509 by connecting terminal block 202 with tertiary coil and is connected, for controlling the break-make of the second A.C. contactor 5.
Drive plate Connection Block 102 and switching motherboard Connection Block 201 are eight heart yearn sockets, and both are connected by eight core connecting lines and realize the transmission of power supply, control signal.Power transformer 3 is connected with drive plate 2, one end of first transformer Connection Block 203 is connected with connecting terminal block 202, the other end is connected with the input end of power transformer 3, one end of second transformer Connection Block 204 is connected with switching motherboard Connection Block 201, the other end is connected with the output terminal of power transformer 3, for by civil power AC115V step-down being input queued switches plate 2 after AC9V.Current transformer 205, first relay 206 and the second relay 207 are all connected with switching motherboard Connection Block 201, and control by the output of single-chip microcomputer 104.The output terminal and second stirring motor 7 exports contact 403 and is connected, the input end and the 3rd of refrigeration compressor 8 exports contact 502 and is connected, the output terminal and the 5th of refrigeration compressor 8 exports contact 505 and is connected, and in the present embodiment, refrigeration compressor 8 adopts frequency-changeable compressor.The input end and the 4th of refrigeration condenser fan 9 exports contact 504 and is connected, and output terminal and the 6th exports contact 508 and is connected.The control end of the first relay 206 and the control end of the second relay 207 are all communicated with single-chip microcomputer 104.Ice maker start-stop switch 11, cake microswitch 10 processed are connected with drive plate 2 and switching motherboard 1 respectively.Isolating switch 12 is connected in the loop of stirring motor 7, current transformer 205 and the first A.C. contactor 4 composition, for cutting off excess current.The model of rectification module 208 is KBP307 type rectifier bridge, rectification module 208 is connected with the second transformer Connection Block 204, switching motherboard Connection Block 201 and the first relay 206, second relay 207 respectively, the alternating current AC9V that power transformer 3 exports by rectification module 208 is transformed into direct current DC5V, this 5V direct current introduces development board 1 by drive plate 2 and as the working power of switching motherboard 1, and this 5V direct current is also respectively the first relay 206 on drive plate 2 and the second relay 207 is powered simultaneously.Resettable fuse 209 is connected with the second transformer Connection Block 204, when ice cream maker operation occurs extremely being subject to heavy current impact, resettable fuse 209 disconnects the input power of drive plate 2 automatically, guarantee that ice cream maker is unaffected, after abnormal conditions are removed, resettable fuse 209 recovers automatically, and ice cream maker recovers normal operating conditions.
Particularly, please then consult Fig. 3, connecting terminal block 202 comprises current transformer input terminal 202a, current transformer lead-out terminal 202b, fire line terminal 202c, first zero terminal 202d, second zero terminal 202e, first Control terminal 202f and the second Control terminal 202g, one of current transformer input terminal 202a is connected with the input end of current transformer 205, other end and first exports contact 402 and is connected, one of current transformer lead-out terminal 202b is connected with the output terminal of current transformer 205, other end is connected with the input end stirring motor 7.One of fire line terminal 202c is connected with first input end 401, other end is connected with the first transformer Connection Block 203, one of first zero terminal 202d controls contact 406 with the second coil and is connected, one and second of second zero terminal 202e inputs contact 403 and is connected, and other end is connected with the first transformer Connection Block 203 together with the first zero terminal 202d parallel connection also.One of first Control terminal 202f is connected with the output terminal of the first relay 206, other end and the first coil control contact 405 and are connected, one of second Control terminal 202g is connected with the output terminal of the second relay 207, and other end and tertiary coil control contact 509 and be connected.
Specific works process of the present invention is as follows:
First connect ice maker start-stop switch 11, make ice cream maker enter holding state, charactron 111 shows the utilization voltage of current system.Then add button 109 and hardness number by hardness number to subtract button 110 and set hardness parameters, press cleaning button 105, after trigger pip is detected by single-chip microcomputer 104, single-chip microcomputer 104 controls to stir motor 7 and starts running, clean the freezing jar of ice cream maker, charactron 111 shows the current running current of stirring motor 7.Trigger cake microswitch 10 processed again, after trigger pip is detected by single-chip microcomputer 104, single-chip microcomputer 104 controls refrigeration compressor 8 and starts running, and now, charactron 111 shows current cake number processed.Single-chip microcomputer 104 is monitored the running current stirring motor 7 by current transformer 205; when detecting that the running current stirring motor 7 is more than or equal to setting value; single-chip microcomputer 104 controls refrigeration compressor 8 and quits work; after postponing tens of second, single-chip microcomputer 104 control stirring motor 7 also quits work; whole ice cream maker is in shutdown armed state, and now cake operation processed is complete.Ice cream maker is in shuts down after armed state reaches certain hour (being generally 5-6 minute), automatically again enters the circulation of next round cake, reaches to set hardness number and then shut down, and stops key 106 until press.
Refer to Fig. 2, specifically, when connecting ice maker start-stop switch 11 and pressing cleaning button 105, single-chip microcomputer 104 triggers hummer 101 buzzing, control end simultaneously to the first relay 206 sends control level, first relay 206 adhesive conducting, first relay 206 obtains electric, the output terminal of the first relay 206 controls contact 405 by the first Control terminal 202f with the first coil and is connected, now the first coil control contact 405 obtains electric, thus it is closed to make the first A.C. contactor 4 trigger, first input contact 401 and first exports contact 402, second input contact 403 and second exports contact 404 and is conducted, because the first input contact 401 and the second input contact 403 are connected with the live wire end L of civil power and zero line side N respectively, now current transformer 205, stir motor 7, isolating switch 12 and the first D.C mutual-inductor 4 form conducting loop, stir motor 7 energising to start working.When after connection cake microswitch 10 processed, single-chip microcomputer 104 detects the operation signal of cake microswitch 10 processed, control end to the second relay 207 sends control level, second relay 207 adhesive conducting, second relay 207 obtains electric, the output terminal of the second relay 207 controls contact 509 by the second Control terminal 202g with tertiary coil and is connected, now tertiary coil control contact 509 obtains electric, thus it is closed to make the second A.C. contactor 5 trigger, 3rd input contact 501 and the 3rd exports contact 502, 5th input contact 505 and the 5th exports contact 506 and is conducted, because the 3rd input contact 501 and the 5th input contact 505 are connected with the live wire end L of civil power and zero line side N respectively, 3rd output contact 502 and the 5th exports contact 506 and is connected with refrigeration compressor 8 respectively, refrigeration compressor 8 and the second A.C. contactor 5 form conducting loop, refrigeration compressor 8 energising starts running.In addition, the 4th input contact 503 and the 4th exports contact 504, the 6th and input contact 507 and the 6th to export contact 508 phase closed, and condenser fan 9 of freezing starts to be energized simultaneously and operates.
In the operational process stirring motor 7 and refrigeration compressor 8, single-chip microcomputer 104 Real-Time Monitoring stirs the working current of motor 7 and refrigeration compressor 8, once occur that abnormal conditions cause the load of stirring motor 7 and refrigeration compressor 8 excessive, when single-chip microcomputer 104 detects and exceedes running current with the running current stirring current transformer 205 electric current that motor 7 is connected or refrigeration compressor 8, single-chip microcomputer 104 controls the first relay 206 and the second relay 207 dead electricity, and then the control coil controlling the first A.C. contactor 4 and the second A.C. contactor 5 disconnects, thus cut off the input power stirring motor 7 and refrigeration compressor 8, stirring motor 7 and refrigeration compressor 8 enter halted state, thus avoid the big current exceeding normal operating current that abnormal conditions cause to the impact of ice cream maker electric wiring.In addition, and stir the isolating switch 12 that is connected of motor 7 and automatically fuse when there is the peak point current that may burn electrical equipment, thus the working power of cut-out stirring motor 7, further enhance overcurrent protection measure.In like manner, the short time when the working power appearance of ice cream maker causes big current extremely of the resettable fuse 209 on drive plate 2 fuses automatically, disconnects the operation power supply of ice maker, thus plays the effect of protection circuit electrical equipment.
As Fig. 1, shown in Fig. 2 and Fig. 3, after stirring motor 7 is started working, single-chip microcomputer 104 obtains electric by internal processes setup control second relay 206, postpone certain hour and restart refrigeration compressor 7, after cake processed, single-chip microcomputer 104 controls the first relay 206 dead electricity, refrigeration compressor 8 is quit work, by internal processes setup control second relay 207 dead electricity, postpone certain hour to stop again stirring motor 7, start after accomplishing refrigeration compressor 8, first stop, stir motor 7 first to start, rear stopping, the work schedule of strict control refrigeration compressor 8 and stirring motor 7, ensure refrigeration compressor 8, stir motor 7 to stagger action, avoid starting simultaneously, after making refrigeration compressor 8 power-off, stir motor 7 and still maintain operation a period of time, thus effectively prevent local slurry excessively freezing, what avoid that shaft is frozen in freezes cylinder phenomenon.
Electric-control system of the present invention is when load carrying; the working power of electrical network voltage undulation or continuation low pressure single-chip microcomputer 104 Real-Time Monitoring drive plate 2; when supply voltage is lower than Systematical control voltage; single-chip microcomputer 104 automatically cuts off and is connected with the output terminal of power transformer 3; ice cream maker enters low-voltage variation state, prevents the electrical parts such as load under low pressure running, and triggers hummer 101 simultaneously and produces alarm sound; prompting user notes supply voltage, after voltage stabilization, restart ice cream maker.
As shown in Figure 4, the liquid level induction system 6 of the present embodiment comprises magnetic reed tube (not identifying in figure), mark post 601, magnetic ball float 602 and connection terminal 603, magnetic reed tube is located in the bar of mark post 601 lower end, magnetic ball float 602 is sheathed on the outside of mark post 601, connection terminal 603 is electrically connected with magnetic reed tube and single-chip microcomputer 104 respectively, and magnetic ball float 602 floats on slurry liquid level in positive configuration state rises with the increase and decrease of slurry quantity or declines in slurry.When magnetic ball float 602 drops to default lower position, magnet ring in magnetic ball float 602 produces magneticaction to magnetic reed tube, contact switch contacts status in magnetic reed tube changes, the adhesive of magnetic reed tube switch is communicated with, and notify single-chip microcomputer 104 by connection terminal 603, single-chip microcomputer 104 and then triggering hummer 101 produce alarm sound, and prompting user notes supplementing slurry in feed basin.
In addition, the present invention also provides a kind of ice cream maker, and this ice cream maker is equipped with above-mentioned refrigeration system, for the ice-cream slurry that congeals.
Be different from the situation of prior art, electric-control system of the present invention is using high performance single-chip microcomputer as main control chip, by single-chip microcomputer, liquid level induction system is monitored in real time, and trigger hummer carry out lack material report to the police, simultaneously, single-chip microcomputer is monitored the running current stirring motor in real time by current transformer, and control as required the first relay and the second relay dead electricity, and then control the break-make of the first A.C. contactor and the second A.C. contactor, thus the start-stop realized stirring motor and refrigeration compressor controls, the rear startup of refrigeration compressor is first stopped, stir motor and first start rear stopping, what effectively prevent ice cream maker freezes cylinder problem.Needed for electric-control system of the present invention, peripheral circuit is less, the feature such as have that structure is simple, feature richness, manipulation are convenient and practical.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an electric-control system, is characterized in that, comprise switching motherboard, drive plate, power transformer, the first A.C. contactor, the second A.C. contactor, liquid level induction system, stirring motor and refrigeration compressor, described switching motherboard comprises:
Hummer;
Drive plate Connection Block, described drive plate Connection Block is eight heart yearn sockets;
Liquid level induction socket, described liquid level induction socket is connected with described liquid level induction system;
Single-chip microcomputer, described single-chip microcomputer is Sai Pulasi CY8C27443 main control chip;
Described hummer, described drive plate Connection Block and described liquid level induction socket is all connected with described single-chip microcomputer;
First A.C. contactor, the input end of described first A.C. contactor and output terminal are provided with two groups of contacts, comprise respectively: the first input contact, first exports contact; Second input contact, second exports contact; The control end of described first A.C. contactor is provided with one group of contact, comprises the first coil and controls contact and the second coil control contact;
Second A.C. contactor, the input end of described second A.C. contactor and output terminal are provided with four groups of contacts, comprising: the 3rd input contact, the 3rd exports contact; 4th input contact, the 4th exports contact; 5th input contact, the 5th exports contact; 6th input contact, the 6th exports contact; The control end of described second A.C. contactor is provided with one group of contact, comprises tertiary coil and controls contact and the 4th coil control contact;
Wherein, described 3rd input contact is connected with the live wire end of civil power, and described 5th input contact is connected with the zero line side of civil power; Described first input contact, described 3rd input contact and described 4th input contact are connected respectively by short-term, and described second input contact, described 5th input contact and described 6th input contact are connected respectively by short-term; Described second coil control contact is controlled contact with described 4th coil and is connected by short-term;
Described drive plate comprises:
Switching motherboard Connection Block, described switching motherboard Connection Block is eight heart yearn sockets;
Connecting terminal block;
Current transformer, the input end of described current transformer exports contact by described connecting terminal block and described first and is connected, and the output terminal of described current transformer is connected by the input end of described connecting terminal block with described stirring motor;
First relay, described first relay controls contact by described connecting terminal block with described first coil and is connected;
Second relay, described second relay controls contact by described connecting terminal block with described tertiary coil and is connected;
Wherein, described drive plate Connection Block is connected by eight core connecting lines with described switching motherboard Connection Block, described power transformer is connected with described drive plate, and described current transformer, described first relay and described second relay are all connected with described switching motherboard Connection Block; The output terminal and described second of described stirring motor exports contact and is connected, and the input end and the described 3rd of described refrigeration compressor exports contact and is connected, and the output terminal and the described 5th of described refrigeration compressor exports contact and is connected.
2. a kind of electric-control system according to claim 1, it is characterized in that, described switching motherboard comprise further cleaning button, stop key, automatic keying, manual key, hardness number add button, hardness number subtracts button and charactron, described cleaning button, described in stop key, described automatic keying, described manual key, described hardness number add button, described hardness number subtracts button and described charactron is all connected with described single-chip microcomputer.
3. a kind of electric-control system according to claim 1, is characterized in that, described drive plate comprises further:
First transformer Connection Block, one end of described first transformer Connection Block is connected with described connecting terminal block, and the other end is connected with the input end of described power transformer;
Second transformer Connection Block, one end of described second transformer Connection Block is connected with described switching motherboard Connection Block, and the other end is connected with the output terminal of described power transformer.
4. a kind of electric-control system according to claim 3, it is characterized in that, described drive plate comprises rectification module further, described rectification module is KBP307 type rectifier bridge, and described rectification module is connected respectively at described second transformer Connection Block, described switching motherboard Connection Block and described first relay, described second relay.
5. a kind of electric-control system according to claim 3, is characterized in that, described connecting terminal block comprises:
Current transformer input terminal, one of described current transformer input terminal is connected with the input end of described current transformer, and other end and described first exports contact and is connected;
Current transformer lead-out terminal, one of described current transformer lead-out terminal is connected with the output terminal of described current transformer, and other end is connected with the input end of described stirring motor;
Fire line terminal, one of described fire line terminal is connected with described first input end, and other end is connected with described first transformer Connection Block;
First zero terminal, one of described first zero terminal controls contact with described second coil and is connected;
Second zero terminal, one and described second of described second zero terminal inputs contact and is connected, and other end is connected with described first transformer Connection Block together with described first zero terminal parallel connection also;
First Control terminal, one of described first Control terminal is connected with the output terminal of described first relay, and other end controls contact with described first coil and is connected;
Second Control terminal, one of described second Control terminal is connected with the output terminal of described second relay, and other end and described tertiary coil control contact and be connected.
6. a kind of electric-control system according to claim 3, is characterized in that, described drive plate comprises resettable fuse further, and described resettable fuse is connected with described second transformer Connection Block.
7. a kind of electric-control system according to claim 1, is characterized in that, described electric-control system comprises refrigeration condenser fan further, and the input end and the described 4th of described refrigeration condenser fan exports contact and is connected, and output terminal and the described 6th exports contact and is connected.
8. a kind of electric-control system according to claim 1, it is characterized in that, described electric-control system comprises ice maker start-stop switch and cake microswitch processed further, and described ice maker start-stop switch, described cake microswitch processed are connected with described drive plate and described switching motherboard respectively.
9. a kind of electric-control system according to claim 1, it is characterized in that, described electric-control system comprises isolating switch further, and described isolating switch is connected in the loop of described stirring motor, described current transformer and described first A.C. contactor composition, for cutting off excess current.
10. an ice cream maker, is characterized in that, described ice cream maker is equipped with the electric-control system according to claim 1-9 any one.
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| CN201310328940.9A CN104345657A (en) | 2013-07-23 | 2013-07-23 | Electric control system and ice cream machine |
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| CN201310328940.9A CN104345657A (en) | 2013-07-23 | 2013-07-23 | Electric control system and ice cream machine |
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