CN201064163Y - Soft ice cream machine control system - Google Patents
Soft ice cream machine control system Download PDFInfo
- Publication number
- CN201064163Y CN201064163Y CNU2007201214499U CN200720121449U CN201064163Y CN 201064163 Y CN201064163 Y CN 201064163Y CN U2007201214499 U CNU2007201214499 U CN U2007201214499U CN 200720121449 U CN200720121449 U CN 200720121449U CN 201064163 Y CN201064163 Y CN 201064163Y
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- Prior art keywords
- compressor
- control system
- unit
- board
- soft ice
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Abstract
The utility model discloses a control system of a soft ice cream machine. The control system comprises a main control board, a switch board, a drive board and a compressor. The power supply input end of the drive board is connected with the municipal power supply through a controllable transformer. The main control board, the switch board and the compressor are respectively connected with the drive board; wherein the main control board is connected with the switch board which is connected with a proximity switch. The control system also comprises a variable frequency drive module which can transforms the two-phase municipal power into three-phase pulse DC power supply; the input end of the variable frequency module is connected with the drive board and the output end is connected with the compressor. The utility model has a closed-loop control method and high temperature-control precision; wherein the temperature-control precision can reach +- 0.2 DEG C for controlling the refrigerating output of the compressor according to the environment variables. The soft ice cream machine adopting the variable frequency drive module can be reduced in noise and increased in starting torque and can run stably; by the utility model, intelligent fuzzy control is realized, the speed regulating range is widened, stepless speed change is achieved and energy is saved.
Description
Technical field
The utility model relates to a kind of food machinery control system, particularly a kind of controller for soft ice-cream machine.
Background technology
Traditional refrigeration compressor is to adopt constant speed compressor to start under total head under the disjunction of magnetic force control and moving.Starting current is very big, often be rated operational current 4-6 doubly, can produce great impact to the local power grid circuit, other electrical equipment there is serious interference, and compressor and fan noise are big on the traditional ice cream equipment, speed adjustable range is narrow, the defective that control accuracy is not high, cause inefficiency, the specific yield energy consumption is bigger.
The utility model content
The technical problems to be solved in the utility model is to overcome the technological deficiency that the traditional soft ice cream maker exists, and a kind of controller for soft ice-cream machine that reduces noise, increase staring torque, raising control accuracy and refrigerating speed, increases work efficiency is provided.
In order to solve technical problem recited above, the utility model is taked following technical scheme:
The utility model provides a kind of control system of soft ice-cream machine, include master board, switchboard, drive plate and compressor, the power input of drive plate is connected with mains supply through controllable transformer, master board, switchboard, compressor is connected with drive plate respectively, master board also is connected with switchboard, switchboard also with near switch is connected, wherein, described control system also includes the frequency conversion drive module that an energy becomes the mains supply commutation of two-phase the three-phase Voltage pulsating direct-current supply, the input of this frequency conversion drive module is connected with drive plate, and output is connected with compressor.
Described frequency conversion drive module comprises the mains supply commutation is become the three-phase Voltage pulsating direct-current supply and be delivered to compressor to need rectification unit, filter unit, brake unit, absorptive unit and the inversion unit of process successively, also comprises the numerical control unit (16) that is connected with inversion unit.Wherein, rectification unit is made up of four diode D1, D2, D3, D4 bridge joint; Filter unit is made up of resistance R 2, R3, capacitor C 3, C4; Brake unit is made up of diode D5, resistance R 5, photoelectric tube PEC; Absorptive unit is made up of capacitor C 5; Inversion unit is made up of six insulated gate bipolar transistor IGBT that constitute bridge inverter main circuit; Numerical control unit includes Digital Signal Processing engine, Drive Protecting Circuit, light isolating coupler, communication protocol, current signal processor, EEPROM, electric current/frequency analog display unit, open collector output module, power transfer relay output module, external control terminal output module, phase shortage power-fail detection circuit and keyboard/display unit.Numerical control unit also includes fan drive circuit, contactor drive circuit, residual voltage testing circuit and phase shortage power-fail detection circuit.
As a kind of optimal way, control system also includes liquid level sensor, and this liquid level sensor is connected with master board.
As a kind of optimal way, compressor adopts frequency-changeable compressor, and compressor is started under very low voltage conditions, under the very little situation of electric current, obtain enough detent torques, realize soft start, avoid, and prolong the life-span of compressor the interference of consumer on every side.
The utlity model has close-loop control mode, the accuracy of temperature control height.Temperature control precision can reach in positive and negative 0.2 ℃, in good time according to environmental variance control compressor refrigerating capacity.Adopted the soft ice-cream machine of frequency conversion drive module described in the utility model, can reduce noise, increase staring torque, operated steadily; Intelligent Fuzzy Control, widen speed adjustable range, realize stepless speed regulation, save the energy.
Description of drawings
Fig. 1 is the utility model control system figure.
Fig. 2 is the utility model frequency conversion drive modular circuit functional-block diagram.
Fig. 3 is the utility model frequency conversion drive module electric operation wiring diagram.
Fig. 4 is the startup refrigerating speed comparison diagram of the utility model and conventional ADS driving mode.
Fig. 5 is the comparison diagram of constant amplitude pulse of different width modulation system of the present utility model (a) and traditional wide impulse modulation mode (b).
The specific embodiment
See also Fig. 1, Fig. 1 is the utility model control system figure.As shown in Figure 1, control system of the present utility model is made up of the frequency conversion drive module 1 that is exclusively used in the soft ice cream compressor, master board 2, drive plate 3, Keyboard 4, control transformer 5 and compressor 6.The power input of drive plate 3 is connected with mains supply through controllable transformer 5, master board 2, switchboard 4, compressor 6 are connected with drive plate 3 respectively, master board 2 also is connected with switchboard 4, switchboard 4 also with near switch is connected, the input of frequency conversion drive module 1 is connected with drive plate 3, and the output of frequency conversion drive module 1 is connected with compressor 6.Frequency conversion drive module 1 is delivered to compressor 6 after the mains supply commutation being become the three-phase Voltage pulsating direct-current supply.In addition, control system also includes scram button SB, protective tube FU and blower fan M2.Master board 2 also is connected with liquid level sensor, has a transformer/Hall element 8 and two relays 7 in drive plate.
Wherein, compressor 6 adopts frequency-changeable compressor M1, and model can be selected HCJ179A for use; The model of blower fan M2 can be selected M4Q045 for use.
See also Fig. 2, Fig. 2 is the utility model frequency conversion drive modular circuit functional-block diagram.As shown in Figure 2, frequency conversion drive module 1 has rectification unit 11, filter unit 12, brake unit 13, absorptive unit 14, inversion unit 15 and numerical control unit 16.Rectification unit 11, filter unit 12, brake unit 13, absorptive unit 14 and inversion unit 15 are connected successively; Numerical control unit 16 is connected with inversion unit 15, and receives the dc source after rectification unit 11 rectifications.Frequency conversion drive module 1 becomes the mains supply of 220V the three-phase Voltage pulsating direct-current supply and is delivered to compressor 6 through commutations behind rectification unit 11, filter unit 12, brake unit 13, absorptive unit 14 and the inversion unit 15 successively, control compressor threephase stator winding is worked in certain sequence, produces rotating excitation field in its electric space.Wherein, rectification unit 11 is made up of four diode D1, D2, D3, D4 bridge joint; Filter unit 12 is made up of resistance R 2, R3, capacitor C 3, C4; Brake unit 13 is made up of diode D5, resistance R 5, photoelectric tube PEC; Absorptive unit 14 is made up of capacitor C 5; Inversion unit 15 is made up of six insulated gate bipolar transistor IGBT that constitute bridge inverter main circuit; Numerical control unit 16 includes Digital Signal Processing engine, Drive Protecting Circuit, light isolating coupler, communication protocol, current signal processor, EEPROM, electric current/frequency analog display unit, open collector output module, power transfer relay output module, external control terminal output module, phase shortage power-fail detection circuit, keyboard/display unit, fan drive circuit, contactor drive circuit, residual voltage testing circuit and phase shortage power-fail detection circuit.The current signal processor is by vector addition I
U=I
W+ I
V, by the electric current of the detected U of current transformer CT1, CT2, W line, calculate the electric current of V line, afterwards, the result of calculation of Digital Signal Processing engine DSP received current signal processor is operated accordingly.
Please Fig. 3 be the utility model frequency conversion drive module electric operation wiring diagram.As shown in Figure 3, the operating procedure of frequency conversion drive module 1 is:
1., need to select the menu button that is provided with being provided with on the panel 17, and on CNC Panel 18, enter editing mode by the Menu key;
2., defined parameters;
3., on CNC Panel, get back to stopped status by the STOP key;
4., with 1 closure of the K switch between FWD and the COM, motor entry into service;
5., regulating frequency value;
6., disconnect the K1 K2 that closes, motor counter-rotating;
7., disconnect K1, K2, frequency conversion drive module 1 quits work gradually, compressor runs slowly to stopping.
Compressor is selected frequency-changeable compressor for use.
During No Load Start, frequency conversion drive module 1 control program modulation fundamental frequency is to about the 40HZ, and carrier frequency is transferred to about 12KHZ, makes frequency conversion drive module 1 be in the constant force square way of output.After program was provided with and starts a second, module entered normal operating condition.When external equipment sensor and frequency conversion drive module 1 detect environmental variance and pipeline pressure arrives the value scope of setting; master board 2 can be sent halt instruction; after frequency conversion drive module 1 receives this instruction; program is provided with automatically and enters low frequency output, makes the V/F value of this module remain on a low cruise state.So the refrigeration dutycycle that can regulate frequency-changeable compressor.Ducted cold-producing medium low speed flows back to, and the rotating speed of condensation fan also decreases.
See also Fig. 4, Fig. 4 is the startup refrigerating speed comparison diagram of the utility model and conventional ADS driving mode.As shown in the figure, initial fast-refrigerating ability of the present utility model is when arriving the system cake temperature of setting, and required time T1 is about 1/3 of traditional time T 2, thereby makes the utility model reach about three times that tradition is freezed in the efficient of refrigeration.
See also Fig. 5, Fig. 5 is the comparison diagram of constant amplitude pulse of different width modulation system of the present utility model (a) and traditional wide impulse modulation mode (b).Can see that from Fig. 5 the ability of the output voltage of constant amplitude pulse of different width modulation system of the present utility model (a) is better than the output voltage capability of traditional wide impulse modulation mode (b), can improve the maximum speed of compressor well.
Below be the relevant test data that possesses the soft ice-cream machine of frequency conversion drive module described in the utility model:
(1), install the every index table of comparisons of frequency conversion drive module front and back soft ice-cream machine additional:
| Test index | The conventional ADS driving mode | Install the frequency conversion drive module additional |
| The test of complete machine noise | 71dB | 64dB |
| Dynamic safety leakage current | 1.0mA | 1.5mA |
| Frequency and rotational speed regulation | Can not regulate | Regulate continuously |
| System cake startability | Generally | Moment increases and is steady |
| The first cylinder system cake time | 13’00 | 11’39 |
| Static safety test index | Normally pass through | Normally pass through |
| Shut down electric current for 7 grades | 3.6A | 2.9A |
| Overcurrent protection | This function is arranged | This function is arranged |
| 242 volts of startups of high pressure | Start normal | Start normal |
| 187 |
Start normal | Startup and moment of torsion are fine |
(2), AC frequency conversion compressor tune-up data table
Although the utility model has been done to describe in detail and quoted embodiment as proof, for those of ordinary skill in the art, obviously various schemes, modification and the change that can make according to above-mentioned explanation all should be included within the scope of claim.
Claims (5)
1. controller for soft ice-cream machine, include master board (2), switchboard (4), drive plate (3) and compressor (6), the power input of drive plate (3) is connected with mains supply through controllable transformer (5), master board (2), switchboard (4), compressor (6) is connected with drive plate (3) respectively, master board (2) also is connected with switchboard (4), switchboard (4) also with near switch is connected, it is characterized in that: described control system also includes the frequency conversion drive module (1) that an energy becomes the mains supply commutation of two-phase the three-phase Voltage pulsating direct-current supply, the input of described frequency conversion drive module (1) is connected with drive plate (3), and output is connected with compressor (6).
2. controller for soft ice-cream machine as claimed in claim 1, it is characterized in that: described frequency conversion drive module includes the mains supply commutation that will receive and becomes the three-phase Voltage pulsating direct-current supply and be delivered to compressor to need the rectification unit of process (11), filter unit (12), brake unit (13), absorptive unit (14) and inversion unit (15) successively, also comprises the numerical control unit (16) that is connected with inversion unit.
3. controller for soft ice-cream machine as claimed in claim 2 is characterized in that: described inversion unit is made up of six insulated gate bipolar transistor IGBT that constitute bridge inverter main circuit.
4. control system as claimed in claim 1 is characterized in that: described control system also includes liquid level sensor, and described liquid level sensor is connected with master board.
5. control system as claimed in claim 1 is characterized in that: described compressor (6) is a frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201214499U CN201064163Y (en) | 2007-07-03 | 2007-07-03 | Soft ice cream machine control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201214499U CN201064163Y (en) | 2007-07-03 | 2007-07-03 | Soft ice cream machine control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201064163Y true CN201064163Y (en) | 2008-05-28 |
Family
ID=39481319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201214499U Expired - Fee Related CN201064163Y (en) | 2007-07-03 | 2007-07-03 | Soft ice cream machine control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201064163Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680105A (en) * | 2012-09-20 | 2014-03-26 | 深圳市海川实业股份有限公司 | Method and system for monitoring working state of ice cream machine by use of bluetooth mobile terminal |
| CN106602561A (en) * | 2016-12-13 | 2017-04-26 | 新风光电子科技股份有限公司 | Traction power supply system power source device |
-
2007
- 2007-07-03 CN CNU2007201214499U patent/CN201064163Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680105A (en) * | 2012-09-20 | 2014-03-26 | 深圳市海川实业股份有限公司 | Method and system for monitoring working state of ice cream machine by use of bluetooth mobile terminal |
| CN106602561A (en) * | 2016-12-13 | 2017-04-26 | 新风光电子科技股份有限公司 | Traction power supply system power source device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20160703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |