CN109707657A - A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated - Google Patents
A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated Download PDFInfo
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- CN109707657A CN109707657A CN201910139210.1A CN201910139210A CN109707657A CN 109707657 A CN109707657 A CN 109707657A CN 201910139210 A CN201910139210 A CN 201910139210A CN 109707657 A CN109707657 A CN 109707657A
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- cabinet
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- rotation speed
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Abstract
The invention discloses a kind of refrigerated display cabinets of rotation speed of fan that can be self-regulated, including cabinet body, the top of cabinet body to be provided with lamp box, and the lower front end of lamp box is provided with Hall switch；The inner top of cabinet body is provided with cabinet inner blower, and the lower part of cabinet body is control cabinet, is provided with condensation fan, single-chip microcontroller and human induction switch in control cabinet；The single-chip microcontroller be electrically connected with it is silicon-controlled, it is silicon-controlled to be connected respectively with cabinet inner blower and condensation fan；The Hall switch and human induction switch with monolithic mechatronics.Refrigerated display cabinet rotation speed of fan provided by the invention can voluntarily be adjusted according to information such as in-cabinet temperature, environment temperature, flow of the people, switch door state, the service time sections detected, change the case where existing product blower can only be according to single rotation speed operation, avoid the unnecessary waste of the energy caused by blower runs at high speed always, and the good control noise of energy, good usage experience is brought to user.
Description
Technical field
The present invention relates to refrigerated display cabinet fields, and in particular to a kind of refrigerated display cabinet for the rotation speed of fan that can be self-regulated.
Background technique
(including the condensation fan and evaporation fan) motor of blower used in existing refrigerated display cabinet product is motor with cup rotor,
Motor speed majority is unadjustable；No matter daytime business model or night close under mode, blower is according to specific revolving speed
Work.To ensure commercial display cabinet refrigeration effect, power of fan is bigger；Power means that greatly noise is also big, especially big
On capacity showcase product, the noise that blower generates is usually above compressor noise, and it is most important to become commercial display cabinet product
Noise source.Under daytime business model, frequently opens the door to cope with the customer of big flow, closes the door, cooling capacity caused by object is taken to be lost, wind
Machine keeps high revolving speed to may insure that drink cools down in time in cabinet；However night close with rear fan still according to high rotary speed working not only
Unnecessary waste is caused, and night fan noise influences whether user；User is during enabling takes object or replenishes
The noise of case inner blower can also cause bad usage experience to user；These can all cause customer complaint.In addition, winter environment
Temperature is lower, and the high rotary speed working of blower will cause start/stop of compressor frequently so as to shorten its service life.
Summary of the invention
Aiming at the problem that existing refrigerated display cabinet inner blower revolving speed cannot automatically adjust, the present invention provides one kind can be certainly
Adjust the refrigerated display cabinet of rotation speed of fan.
The following technical solution is employed by the present invention:
A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated, including cabinet body, the top of cabinet body are provided with lamp box, lamp box
Lower front end is provided with Hall switch；The inner top of cabinet body is provided with cabinet inner blower, and the lower part of cabinet body is control cabinet, sets in control cabinet
It is equipped with condensation fan, single-chip microcontroller and human induction switch；The single-chip microcontroller be electrically connected with it is silicon-controlled, it is silicon-controlled respectively with wind in cabinet
Machine is connected with condensation fan；The Hall switch and human induction switch with monolithic mechatronics.
Preferably, it is hinged with cabinet door on the cabinet body, magnet steel is installed at the top of cabinet door, magnet steel is mobile with cabinet door, from
And Hall switch is caused to export change in electric.
Preferably, the single-chip microcontroller has been electrically connected environment temperature sensor, in-cabinet temperature sensor and LED and has shown
Shield, is provided with operation button on LED display, temperature value in LED display energy display case can also show the time.
Preferably, the single-chip microcontroller is also connected with power module and communication module, and power module is connected with rechargeable battery,
Communication module is wirelessly connected with host computer, and host computer is mobile phone or computer.
Preferably, compressor, compressor and monolithic mechatronics are additionally provided in control cabinet, single-chip microcontroller can control compressor
Start and stop.
Preferably, the single-chip microcontroller is electrically connected with zero cross detection circuit.
Preferably, the single-chip microcontroller is electrically connected with buzzer.
The invention has the advantages that:
Compared with existing refrigerated display cabinet, refrigerated display cabinet rotation speed of fan provided by the invention can be according to the cabinet detected
The information such as interior temperature, environment temperature, flow of the people, switch door state, service time section are voluntarily adjusted, and change existing product blower
Can only be according to single rotation speed operation the case where.Adjusting rotation speed of fan is to be realized by single-chip microcontroller to the control of thyristor operating angle,
Therefore this rotational speed regulation is continuous.The unnecessary waste of the energy caused by running at high speed always the invention can avoid blower,
And the good control noise of energy, good usage experience is brought to user.
Detailed description of the invention
Fig. 1 be can be self-regulated rotation speed of fan refrigerated display cabinet structure chart.
Fig. 2 is the schematic diagram of LED display.
Fig. 3 be can be self-regulated rotation speed of fan refrigerated display cabinet schematic diagram.
Fig. 4 is temperature-measurement principle figure.
Fig. 5 is switch gate detection principle diagram.
Fig. 6 is human induction switch schematic diagram.
Fig. 7 is zero cross detection circuit figure.
Fig. 8 is SCR control schematic diagram.
Specific embodiment
A specific embodiment of the invention is described further in the following with reference to the drawings and specific embodiments:
In conjunction with Fig. 1 to Fig. 8, a kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated, including cabinet body 1, the top of cabinet body are set
It is equipped with lamp box 2, the lower front end of lamp box is provided with Hall switch 3.
It is hinged with cabinet door 4 on cabinet body, magnet steel is installed, magnet steel is mobile with cabinet door, so as to cause Hall at the top of cabinet door
Switch output change in electric.
The inner top of cabinet body is provided with cabinet inner blower 5, and the lower part of cabinet body is control cabinet 6, is provided with condensating wind in control cabinet
Machine 7, single-chip microcontroller and human induction switch 8.
Single-chip microcontroller be electrically connected with it is silicon-controlled, it is silicon-controlled to be connected respectively with cabinet inner blower and condensation fan.
Hall switch 3 and human induction switch 8 with monolithic mechatronics.
Hall switch remains stationary during switch gate, and magnet steel is mobile with cabinet door；Magnet steel is closed far from Hall switch when enabling
Magnet steel is then close to Hall switch when door；Magnet steel causes the variation of Hall switch output electric signal, single-chip microcontroller with the variation of door position
The switch state of door is judged according to this electric signal.
Human induction switch 8 is realized in front of detection showcase either with or without customer activities, and will test result input single-chip microcontroller,
Single-chip microcontroller can be obtained by flow of the people information by the active customer quantity detected in the unit of account time.
Single-chip microcontroller has been electrically connected environment temperature sensor, in-cabinet temperature sensor and LED display 9, LED display
On be provided with operation button, temperature value in LED display energy display case can also show the time.
The data that environment temperature sensor and in-cabinet temperature sensor will test are sent to single-chip microcontroller, realize to environment and
The acquisition of in-cabinet temperature.
Operation button realization sets in-cabinet temperature and time etc..
Single-chip microcontroller is also connected with power module and communication module, and power module is connected with rechargeable battery, communication module without
Line is connected with host computer, and host computer is mobile phone or computer, and user can remotely monitor by host computer, modify the fortune of showcase
Row data.
Compressor, compressor and monolithic mechatronics are additionally provided in control cabinet, single-chip microcontroller can control the start and stop of compressor.
Single-chip microcontroller is electrically connected with buzzer, and buzzer is able to achieve abnormal alarm.
Single-chip microcontroller is electrically connected with zero cross detection circuit, as shown in fig. 7,220v alternating current is whole into all-wave after resistance is depressured
The half period sine wave signal that the voltage obtained after stream bridge is less than 5v, frequency is 100Hz.The signal enters the input terminal of optocoupler,
When voltage value is less than optocoupler conducting voltage, singlechip interruption input port obtains 5v signal；When half period sine wave signal is big
When optocoupler conducting voltage, optocoupler conducting, singlechip interruption input port voltage thus before 5v sport 0v, formed under one
Edge drops.Failing edge triggering single-chip microcontroller enters interrupt routine, and one instantaneous Continuity signal of output is (in Fig. 8 after the regular hour that is delayed
Single-chip microcomputer output mouth on), different delay times just corresponds to the different angles of flow.
Single-chip microcomputer output in Fig. 8 obtain it is electric after, drive controlled silicon conducting, condensation fan connected in series and cabinet inner blower
It is switched on.When the angle of flow is 180 °, silicon-controlled fully in entire half period sine wave band, blower full speed operation；When leading
When current flow angle is 0 °, silicon-controlled to be not turned on, blower break；During the angle of flow is decreased to 0 ° by 180 °, rotation speed of fan gradually drops
It is low；Angle of flow value is between 0 °~180 ° when blower rotates.
In this way, single-chip microcontroller is according to in-cabinet temperature, environment temperature, the flow of the people, switch door state, service time section detected
The equal suitable angle of flow of information settings, it is ensured that blower is worked with optimal rotation speed of fan, to meet the use demand of user.Battalion
When the industry time, environment temperature is high, and when in-cabinet temperature is also higher, the angle of flow is 180 °, and blower high speed operation is to ensure the temperature inside the box
Cooling is timely；The temperature inside the box is lower, and when flow of the people is again little, the angle of flow is turned down, and corresponding rotation speed of fan is turned down；The temperature inside the box is got over
Low, flow of the people gets over that Small conduction angle is smaller, and rotation speed of fan is lower.Into after closing time, the angle of flow is adjusted to minimum, and blower is with minimum
Rotary speed working, to reduce noise.Under door opening state, the angle of flow is turned down, blower tick-over, to ensure that good user uses body
Cooling capacity is lost when testing, while can reduce enabling.When environment temperature is too low, the angle of flow is turned down therewith, and blower tick-over in this way may be used
To reduce the frequency of compressor startup-shutdown, prolong its service life.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (7)
- The refrigerated display cabinet of rotation speed of fan 1. one kind can be self-regulated, which is characterized in that including cabinet body, the top of cabinet body is provided with lamp The lower front end of case, lamp box is provided with Hall switch；The inner top of cabinet body is provided with cabinet inner blower, and the lower part of cabinet body is control cabinet, Condensation fan, single-chip microcontroller and human induction switch are provided in control cabinet；The single-chip microcontroller be electrically connected with it is silicon-controlled, silicon-controlled point It is not connected with cabinet inner blower and condensation fan；The Hall switch and human induction switch with monolithic mechatronics.
- The refrigerated display cabinet of rotation speed of fan 2. one kind according to claim 1 can be self-regulated, which is characterized in that the cabinet body On be hinged with cabinet door, magnet steel is installed, magnet steel is mobile with cabinet door, exports electric signal so as to cause Hall switch at the top of cabinet door Variation.
- The refrigerated display cabinet of rotation speed of fan 3. one kind according to claim 1 can be self-regulated, which is characterized in that the monolithic Machine has been electrically connected environment temperature sensor, in-cabinet temperature sensor and LED display, is provided with operation on LED display Button, temperature value in LED display energy display case, can also show the time.
- The refrigerated display cabinet of rotation speed of fan 4. one kind according to claim 1 can be self-regulated, which is characterized in that the monolithic Machine is also connected with power module and communication module, and power module is connected with rechargeable battery, and communication module is wirelessly connected with upper Machine, host computer are mobile phone or computer.
- The refrigerated display cabinet of rotation speed of fan 5. one kind according to claim 1 can be self-regulated, which is characterized in that in control cabinet Compressor, compressor and monolithic mechatronics are additionally provided with, single-chip microcontroller can control the start and stop of compressor.
- The refrigerated display cabinet of rotation speed of fan 6. one kind according to claim 1 can be self-regulated, which is characterized in that the monolithic Mechatronics have zero cross detection circuit.
- The refrigerated display cabinet of rotation speed of fan 7. one kind according to claim 1 can be self-regulated, which is characterized in that the monolithic Mechatronics have buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139210.1A CN109707657A (en) | 2019-02-26 | 2019-02-26 | A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139210.1A CN109707657A (en) | 2019-02-26 | 2019-02-26 | A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated |
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| CN109707657A true CN109707657A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910139210.1A Pending CN109707657A (en) | 2019-02-26 | 2019-02-26 | A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528655A (en) * | 2020-04-17 | 2020-08-14 | 珠海格力电器股份有限公司 | Intelligent control method and device for display cabinet and intelligent display cabinet |
| CN113587528A (en) * | 2021-07-19 | 2021-11-02 | 珠海格力电器股份有限公司 | Fan control circuit and method for refrigeration equipment and refrigeration closed cabinet |
| CN114413562A (en) * | 2021-12-31 | 2022-04-29 | 广东哈士奇制冷科技股份有限公司 | Refrigeration equipment control method and device based on people flow analysis |
| CN114568887A (en) * | 2020-11-30 | 2022-06-03 | 财团法人工业技术研究院 | Air curtain air speed control method and device for open type display cabinet |
Citations (5)
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|---|---|---|---|---|
| JP2005204840A (en) * | 2004-01-21 | 2005-08-04 | Nakano Refrigerators Co Ltd | Open showcase, and centralized controlling system |
| US20100242506A1 (en) * | 2006-05-22 | 2010-09-30 | Universal Nolin Company Llc | Evaporator fan motor control in a refrigerated merchandiser |
| KR20150075817A (en) * | 2013-12-26 | 2015-07-06 | 롯데알미늄 주식회사 | Apparatus for power save controlling of showcase and method thereof |
| CN106352641A (en) * | 2016-08-30 | 2017-01-25 | 安庆三维电器有限公司 | Air-cooled refrigerated display cabinet |
| CN206338228U (en) * | 2016-12-30 | 2017-07-18 | 广东科学技术职业学院 | A kind of intelligent temperature control fan governor |
-
2019
- 2019-02-26 CN CN201910139210.1A patent/CN109707657A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005204840A (en) * | 2004-01-21 | 2005-08-04 | Nakano Refrigerators Co Ltd | Open showcase, and centralized controlling system |
| US20100242506A1 (en) * | 2006-05-22 | 2010-09-30 | Universal Nolin Company Llc | Evaporator fan motor control in a refrigerated merchandiser |
| KR20150075817A (en) * | 2013-12-26 | 2015-07-06 | 롯데알미늄 주식회사 | Apparatus for power save controlling of showcase and method thereof |
| CN106352641A (en) * | 2016-08-30 | 2017-01-25 | 安庆三维电器有限公司 | Air-cooled refrigerated display cabinet |
| CN206338228U (en) * | 2016-12-30 | 2017-07-18 | 广东科学技术职业学院 | A kind of intelligent temperature control fan governor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528655A (en) * | 2020-04-17 | 2020-08-14 | 珠海格力电器股份有限公司 | Intelligent control method and device for display cabinet and intelligent display cabinet |
| CN114568887A (en) * | 2020-11-30 | 2022-06-03 | 财团法人工业技术研究院 | Air curtain air speed control method and device for open type display cabinet |
| CN113587528A (en) * | 2021-07-19 | 2021-11-02 | 珠海格力电器股份有限公司 | Fan control circuit and method for refrigeration equipment and refrigeration closed cabinet |
| CN114413562A (en) * | 2021-12-31 | 2022-04-29 | 广东哈士奇制冷科技股份有限公司 | Refrigeration equipment control method and device based on people flow analysis |
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Application publication date: 20190503 |