CN104534807B - Semiconductor refrigerator - Google Patents
Semiconductor refrigerator Download PDFInfo
- Publication number
- CN104534807B CN104534807B CN201510005229.9A CN201510005229A CN104534807B CN 104534807 B CN104534807 B CN 104534807B CN 201510005229 A CN201510005229 A CN 201510005229A CN 104534807 B CN104534807 B CN 104534807B
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- semiconductor chilling
- power supply
- chilling plate
- semiconductor
- voltage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a semiconductor refrigerator which comprises multiple semiconductor chilling plates and a power supply system supplying power for the semiconductor chilling plates. The power supply system comprises a power conversion device and a wave chopping module, wherein the power conversion device can convert alternating current power supply input externally into direct current voltages, and the wave chopping are electrically connected with the semiconductor chilling plates respectively and used for converting the direct current voltages into the voltage values needed by the semiconductor chilling plates. According to the semiconductor refrigerator, the wave chopping module is adopted to be connected with one or more semiconductor chilling plates and convert the direct current voltages output by the power conversion device into the voltage values needed by the semiconductor chilling plates connected with the wave chopping module, the refrigerating capacity of each semiconductor chilling plate can be adjusted flexibly, and the using convenience of the semiconductor refrigerator is improved.
Description
Technical field
The present invention relates to a kind of art of refrigeration units, more particularly to a kind of semiconductor freezer.
Background technology
Semiconductor freezer, also referred to as thermoelectric refrigerator.It utilizes semiconductor chilling plate to pass through heat pipe heat radiation and conduction
Technology and automatic pressure-transforming Variable flow control technology realize refrigeration, without the need for refrigeration working medium and mechanical moving element, solve medium pollution
With the application problem of the traditional mechanical refrigerator such as mechanical vibration.
The refrigerating capacity of semiconductor chilling plate is determined from the voltage swing powered to the semiconductor chilling plate, in prior art
In, existing semiconductor freezer typically by cryogenic temperature and the difference of design temperature, calculates semiconductor chilling plate needs
Supply voltage, then provides the supply voltage required for it to semiconductor chilling plate using electric power conversion apparatus.Because power supply becomes
The voltage of changing device output is fixed, causes what the refrigerating capacity of semiconductor chilling plate was to determine, causes the system of semiconductor freezer
Cold regulation inconvenience.
On the other hand, the operating voltage range of semiconductor chilling plate is very wide, in some use environments, regulated power supply turn
Change that efficiency is very low, cause the energy consumption of semiconductor freezer very big.And the electric power conversion apparatus of wide scope also result in cost increase.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome the problems referred to above or at least in part solve on
State the semiconductor freezer of problem.
The present invention one further objective is that and make the refrigerating capacity of semiconductor freezer flexibly adjustable.
The present invention one further objective is that the energy consumption efficiency for improving semiconductor freezer.
According to an aspect of the present invention, the invention provides a kind of semiconductor freezer.The semiconductor freezer includes multiple
Semiconductor chilling plate and the electric power system for powering to multiple semiconductor chilling plates, wherein electric power system includes：Power convert
Device, is configured to for the alternating current power supply of outside input to be converted to DC voltage；Clipper component, with multiple semiconductor chilling plates difference
Electrical connection, and be configured to for DC voltage to be converted to each semiconductor chilling plate required voltage value.
Alternatively, semiconductor freezer is provided with multiple warm areas, and clipper component includes multiple outfans；Each warm area is by partly leading
One or more in body cooling piece are freezed；And the semiconductor chilling plate of each warm area is exported with one of clipper component
End connection.
Alternatively, above semiconductor freezer also includes：Multiple temperature measurement units, each temperature measurement unit is configured to survey
The cryogenic temperature of one warm area of amount, to determine the semiconductor chilling plate required voltage value of the warm area according to cryogenic temperature.
Alternatively, clipper component includes multiple inputs；Power supply change-over device includes：Multiple switch power supply, each switch
The voltage output range of power supply is set to difference, and electrically connects with an input of clipper component.
Alternatively, power supply change-over device also includes：Ac input end and rectification filtering module；Wherein ac input end configuration
Into the alternating current power supply of connection outside input；And rectification filtering module is connected between multiple switch power supply and ac input end,
And it is DC source to be configured to the alternating current power supply rectifying and wave-filtering of outside input.
Alternatively, clipper component includes：Multiple switch, each switchgear distribution will be into will meet the semiconductor refrigerating of each warm area
The Switching Power Supply of piece power reguirements is communicated on the semiconductor chilling plate of connection correspondence warm area, and by changing the duty of its switch
Than exporting each described semiconductor chilling plate required voltage value.
Alternatively, clipper component also includes：PDM keyer, is configured to what is needed according to each semiconductor chilling plate
Magnitude of voltage to corresponding switch sends pulse-width signal, to change its duty cycle of switching.
Alternatively, the voltage output of each Switching Power Supply is set to the semiconductor chilling plate required voltage value powered by it
Peak.
Alternatively, Switching Power Supply is two, and the voltage output range of one of Switching Power Supply is set to make quasiconductor system
Cold works in high refrigerating efficiency section, and the voltage output range of another Switching Power Supply is set to make semiconductor chilling plate work
In high refrigerating capacity section.
The semiconductor freezer of the present invention, using clipper component, is connected respectively, by electricity with one or more semiconductor chilling plates
The DC voltage of supply changeover device output is converted to the semiconductor chilling plate required voltage value being attached thereto, so that each
The refrigerating capacity of semiconductor chilling plate is flexibly adjustable, improves semiconductor freezer ease of use.
Further, semiconductor freezer of the invention can be respectively supplied multiple warm areas using multiple semiconductor chilling plates
Electricity, and powered respectively to the semiconductor chilling plate of multiple warm areas using electric power system, by the quasiconductor system to different warm areas
Cold applies different voltages and causes the refrigerating capacity of semiconductor chilling plate different, makes different warm areas realize the storage ring of different temperatures
Border, meets the memory requirement of different types of article.
Further, semiconductor freezer of the invention is selected from multiple Switching Power Supplies with different voltage output ranges
Select out and meet the Switching Power Supply of semiconductor chilling plate power reguirements and be powered to one or more semiconductor chilling plates, it is therefore prevented that
The low caused semiconductor freezer energy consumption of the switching device of wide-voltage range power supply conversion efficiency when too low or too high voltages are exported
It is too high, improve the energy consumption efficiency of semiconductor freezer.
According to the detailed description below in conjunction with accompanying drawing to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, the advantages and features of the present invention.
Description of the drawings
Describe some specific embodiments of the present invention in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the semiconductor chilling plate-refrigerating capacity-voltage relationship in semiconductor freezer according to an embodiment of the invention
Figure；
Fig. 2 is the schematic diagram of semiconductor freezer according to an embodiment of the invention；
Fig. 3 is the schematic diagram of semiconductor freezer according to another embodiment of the present invention；And
Fig. 4 is the schematic diagram of clipper component in semiconductor freezer shown in Fig. 3.
Specific embodiment
Fig. 1 is the semiconductor chilling plate-refrigerating capacity-voltage relationship in semiconductor freezer according to an embodiment of the invention
Figure, respectively illustrates the change curve and semiconductor chilling plate of the refrigerating efficiency with supply voltage of semiconductor chilling plate in figure
Refrigerating capacity with supply voltage change curve, it can be seen that magnitude of voltage V1 to the region between magnitude of voltage V3 be semiconductor refrigerating
Piece refrigerating efficiency highest region (can be referred to as high refrigerating efficiency section) in the present embodiment, wherein A points are best operating point,
In the refrigerating efficiency highest of A point semiconductor chilling plates, the voltage of A points is designated as V2.Magnitude of voltage V3 is to the region between magnitude of voltage V4
Refrigerating capacity for semiconductor chilling plate reaches maximum (can be referred to as high refrigerating capacity section in the present embodiment).Due to magnitude of voltage it is little
The work efficiency of semiconductor chilling plate is too low in V1 and the region more than V4, typically cannot use.Therefore semiconductor freezer
Semiconductor chilling plate operating voltage range be V1 to V4 between.
As can be seen from Figure 1 the operating voltage range of the semiconductor chilling plate of semiconductor freezer is between V1 to V4.It is logical
Cross and different voltages are applied to semiconductor chilling plate, semiconductor chilling plate can be made to realize different refrigerating capacitys.If using this
A little semiconductor chilling plates freeze to the different closed areas of semiconductor freezer, it is possible to realize in semiconductor freezer different
Warm area, so as to create condition for the storage of variety classes article.
But multiple semiconductor chilling plates are powered respectively using multiple power supplys, the entirety of semiconductor freezer can be caused
Cost increase, causes economy to decline.Therefore, the semiconductor freezer of the present embodiment is improved electric power system, is realized
Flexible control to different semiconductor chilling plate refrigerating capacitys.
Fig. 2 is the schematic diagram of semiconductor freezer according to an embodiment of the invention, and the semiconductor freezer includes：Multiple half
Conductor cooling piece 200 and the electric power system 100 for powering to multiple semiconductor chilling plates 200, the electric power system 100 includes：
Power supply change-over device 110 and clipper component 150, wherein power supply change-over device 110 are converted to the alternating current power supply of outside input directly
Stream voltage, clipper component 150 is electrically connected with multiple semiconductor chilling plates 200, and is configured to be converted to DC voltage often
Individual semiconductor chilling plate required voltage value.
The electric power system 100 of the semiconductor freezer of the present embodiment uses clipper component 150, partly leads to one or more respectively
Body cooling piece 200 is powered, and the DC voltage that power supply change-over device 110 is exported is converted to into the electricity that semiconductor chilling plate 200 needs
Pressure value, so that the refrigerating capacity of each semiconductor chilling plate 200 is flexibly adjustable, improves semiconductor freezer ease of use.
In the clipper component 150 can include multiple chopping devices, the outfan of each chopping device and one or more
The power supply connection of semiconductor chilling plate 200, so as to pass through to change the semiconductor chilling plate that the Voltage Cortrol of its output is attached thereto
200 required voltage.
The semiconductor freezer of the present embodiment can be multi-temperature zone refrigerator, and the semiconductor freezer utilizes semiconductor chilling plate 200
Multiple warm areas are powered respectively, and is powered respectively to the semiconductor chilling plate 200 of multiple warm areas using electric power system 100, led to
Cross to the semiconductor chilling plate of different warm areas and apply the refrigerating capacity difference that different voltages cause semiconductor chilling plate 200, make difference
Warm area realizes the storage environment of different temperatures, meets the memory requirement of different types of article.
Clipper component 150 can include multiple outfans, and the outfan quantity of clipper component 150 not less than warm area
Quantity, each outfan of clipper component 150 connects the semiconductor chilling plate of a warm area.Usually, a warm area can make
The cryogenic temperature for realizing warm area using the refrigerating capacity of semiconductor chilling plate 200 freezed with a semiconductor chilling plate 200 not
Together.In other alternative embodiments, the quantity of the semiconductor chilling plate 200 of each warm area it can also be provided that difference, with profit
The difference of refrigerating capacity is realized with the varying number of semiconductor chilling plate 200.
When in use, the semiconductor freezer of the present embodiment can arrange a temperature measurement unit in each warm area, use
In the cryogenic temperature for measuring the warm area, and each warm area is calculated according to the gap for measuring the cryogenic temperature and design temperature for drawing
Semiconductor chilling plate 200 needed for supply voltage, from the corresponding clipper component 150 of electric power system 100 respectively to each warm area
Semiconductor chilling plate 200 exports corresponding DC voltage.
Compared to the semiconductor chilling plate 200 to each warm area, same power-supply system, the quasiconductor of the present embodiment are set
The cost of refrigerator is lower, and the refrigeration for reaching is identical.
Above clipper component 150 can be entered using pulsewidth modulation (Pulse Width Modulation, abbreviation PWM) mode
Row control.By the dutycycle for adjusting PWM, change switch conduction times, so as to change the magnitude of voltage of output.The control of PWM device
System is flexibly simple, and the voltage to semiconductor chilling plate 200 can be facilitated to be adjusted.For example, clipper component 150 can include：
Multiple switch, each switch is by changing the dutycycle output semiconductor cooling piece required voltage value that it is switched.
Fig. 3 is the schematic diagram of semiconductor freezer according to another embodiment of the present invention, and the semiconductor freezer of the embodiment exists
On the basis of a upper embodiment, some associated components are increased.
Due to the running voltage efficiency of semiconductor chilling plate it is very wide, if using the adjustable power supply change-over device of voltage
110 are powered, and one is convenient higher to voltage output range requirement, increased cost, another conveniently to will also result in Power convert
Device 110 cannot ensure higher energy conversion efficiency in wider output area so that the overall power of semiconductor freezer
Rise.
Further, since semiconductor freezer generally uses power frequency supply power, therefore the multiple power supply change-over devices 110 of the above
It is input into as routine use power frequency supply (such as 220V, the alternating current of 50Hz), it is output as the adjustable unidirectional current in different range.
Power supply change-over device 110 can include：Ac input end 120, rectification filtering module 130 and multiple switch power supply.
Ac input end 120 is configured to connect external ac power source, and rectification filtering module 130 is connected to multiple Power converts
Between device 110 and ac input end 120, and it is DC source to be configured to external ac power source rectifying and wave-filtering, for example will
The power frequency supply of 220V carries out the DC voltage of full-bridge rectifier filter output 310V or so, and in addition rectification filtering module 130 may be used also
To be provided with output switch, controllably by direct current electricity suppl in Switching Power Supply.
Multiple switch power supply, the voltage output range of each Switching Power Supply is set to difference, and with the one of clipper component 150
Individual input electrical connection.The summation of supply voltage switch output area can be the running voltage model in semiconductor chilling plate 200
Enclose, the power of each Switching Power Supply needs to meet simultaneously for the requirement of the power supply of all semiconductor chilling plates 200.
High cost is also resulted in view of the excessive Switching Power Supply of quantity, it is preferred that Switching Power Supply is two, its
In the voltage output range of a first switch power supply 111 be set to the high refrigerating efficiency section of semiconductor chilling plate (in Fig. 1
V1 to V3), the voltage output range of another second switch power supply 112 is set to the high refrigerating capacity section of semiconductor chilling plate
(such as V3 to V4 in Fig. 1).In some other embodiments, the quantity and voltage output range of Switching Power Supply can be according to using
Requirement is configured, for example, configure three Switching Power Supplies, and voltage output range is each configured to：V1 to V2, V2 to V3, V3 are extremely
V4；Two Switching Power Supplies are for example configured again, and voltage output range is each configured to：V1 to V2, V2 to V4..
In figure 3, first switch power supply 111 can be set to voltage output range make semiconductor chilling plate work in height
Refrigerating efficiency section, second switch power supply 112 can be set to make semiconductor chilling plate work in height using voltage output range
Refrigerating capacity section.
Multiple switch can be included in above clipper component 150, these switches there can be two effects, and first act as
One (first switch power supply 111 or second switch power supply 112) in selecting switch power supply is communicated to the quasiconductor of a warm area
Cooling piece, second act as passing through to change its duty cycle of switching as the device that cut-offs of chopping device, changes output voltage.
In some preferred embodiments, on each outfan of clipper component 150 electric capacity of voltage regulation is also configured with.
Fig. 4 is the schematic diagram of clipper component 150 in semiconductor freezer shown in Fig. 3, and clipper component 150 is arranged at first and opens
Between powered-down source 111 or second switch power supply 112 and semiconductor chilling plate 200, by first switch power supply 111 or second switch electricity
One is connected on the semiconductor chilling plate 200 of each warm area in source 112.
For example clipper component 150 can include：Multiple inputs and multiple outfans, the output voltage of each Switching Power Supply
It is connected to an input；The power supply of the semiconductor chilling plate of each warm area is connected to an outfan of clipper component 150,
It is exactly that the quantity of input needs to be more than or equal to the quantity of Switching Power Supply, the quantity of outfan is needed more than or equal to warm area
Quantity.
Can be using multiple relays or electrical switch (such as transistor, metal-oxide-semiconductor power electronics device in clipper component 150
Part) as switching node.Its breaker in middle K1 can select to connect first switch power supply 111 and second switch power supply 112 with K2.Open
Close K3, K4 to can be used for carrying out copped wave output control to the semiconductor chilling plate of a warm area, K5, K6 can be used for another
The semiconductor chilling plate of warm area carries out copped wave output control.In some alternative embodiments, can be not provided with switching K1 and K2, only
Copped wave output can also be completed using K3, K4, the now output of first switch power supply 111 and second switch power supply 112 cannot be complete
It is fully closed disconnected.
Above first switch power supply 111 and second switch power supply 112, rectification filtering module 130, clipper component 150 can be with
It is controlled by one or more controllers 300, controller 300 can measure multiple by multiple temperature measurement units 400
The cryogenic temperature (electrical connection of controller 300 to multiple temperature measurement units 400 not shown in figure) of warm area, controller
The actual temperature of the 300 each warm areas for measuring multiple temperature measurement units 400 is compared with its respective design temperature, it is determined that
The supply voltage gone out needed for the semiconductor chilling plate of each warm area, correspondingly, sends to Switching Power Supply to rectification filtering module 130
The switching signal of power supply, to Switching Power Supply send Regulation Control signal, to clipper component 150 multiple switch send open and close controlling
Signal, by clipper component 150 voltage transformation is carried out, and to different semiconductor chilling plates 200 required supply voltage is provided.
For example, controller 300 can utilize PID (proportional-integral-differential) algorithm, according to design temperature and temperature survey
Voltage of the difference of the measurement temperature of part 400 required for calculate semiconductor chilling plate 200.For example work as semiconductor chilling plate
When voltage needed for 200 is less than voltage V3, cut-out second switch power supply 112, only with first switch power supply 111 come to quasiconductor system
Cold 200 power supply, the actual power voltage of first switch power supply 111 is the regulation voltage that optimal supply voltage is calculated with PID
Sum.When the voltage needed for semiconductor chilling plate 200 is higher than V3, cut-out first switch power supply 111 only uses second switch power supply
112 to semiconductor chilling plate 200 powering.
When necessary, voltage range exports relatively low one in above Switching Power Supply, can also be blower fan, Temperature measuring section
Part, the control unit part that grades is powered.In addition, a relatively low voltage is only needed to after semiconductor freezer temperature refrigeration just can make respectively
Warm area temperature maintains setting value, and relatively low first switch power supply 111 is preferentially exported using voltage range to ensure in this operating mode
Lower power supply has higher efficiency.Therefore power supply change-over device 110 generally requires maintenance work, in addition it is also necessary to except semiconductor chilling plate
Consuming parts outside 200 are powered.
For the semiconductor freezer of multi-temperature zone, temperature measurement unit 400 successively will to the equal independent measurement temperature of each warm area
The supply voltage needed for the semiconductor chilling plate 200 of each warm area is calculated, by clipper component 150 by corresponding voltage output area
Switching Power Supply is communicated on the semiconductor chilling plate of correspondence warm area, while clipper component 150 can also carry out fine tuning to voltage, to
Semiconductor conductor cooling piece is powered.Namely DC voltage have passed through Switching Power Supply and the two-stage Voltage Cortrol of clipper component 150.
Multiple warm areas are set to two groups, less than voltage V3's by a kind of preferred mode to arrange two Switching Power Supplies
One group is powered by first switch power supply 111, is powered by second switch power supply 112 higher than one group of voltage V3, first switch power supply
111 and second switch power supply 112 output voltage be disposed as correspondence warm area in semiconductor chilling plate required voltage peak,
Then the multiple switch in clipper component 150 is cut-off using PWM control modes, makes voltage step-down to every group of quasiconductor system
The required voltage of cold.The namely output voltage of first switch power supply 111 and second switch power supply 112 and every group of quasiconductor system
The required voltage of cold has been closer to, it is only necessary to which clipper component 150 carries out appropriate fine tuning, it is possible to ensure quasiconductor ice
The refrigeration of case reaches default requirement.So as to the dutycycle of each switch typically will not be too small, the energy consumption efficiency of power supply is also improved.
Filter regulator circuit is provided between the outfan of clipper component 150 and the semiconductor chilling plate 200 of each warm area (in figure
It is not shown), PWM chopping devices are formed with the multiple switch being connected with the outfan of clipper component 150.
The semiconductor freezer of the present embodiment, using clipper component 150, respectively with one or more semiconductor chilling plates 200
Connection, the DC voltage that power supply change-over device 110 is exported is converted to the required voltage of semiconductor chilling plate 200 being attached thereto
Value, so that the refrigerating capacity of each semiconductor chilling plate 200 is flexibly adjustable, improves semiconductor freezer ease of use.
Further, the semiconductor freezer of the present embodiment can be using multiple semiconductor chilling plates 200 to multiple warm areas point
Do not power, and powered respectively to the semiconductor chilling plate 200 of multiple warm areas using electric power system 100, by different warm areas
Semiconductor chilling plate 200 apply different voltages so that the refrigerating capacity of semiconductor chilling plate 200 is different, different warm areas is realized not
Synthermal storage environment, meets the memory requirement of different types of article.
Further, the semiconductor freezer of the present embodiment is from multiple Switching Power Supplies with different voltage output ranges
Select and meet the Switching Power Supply of the power reguirements of semiconductor chilling plate 200 and be powered, it is therefore prevented that the switch electricity of wide-voltage range
When too low or too high voltages are exported, semiconductor freezer energy consumption is too high caused by efficiency step-down in source, improves the energy of semiconductor freezer
Consumption efficiency.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe multiple showing for the present invention
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all these other variations or modifications.
Claims (5)
1. a kind of semiconductor freezer, including multiple semiconductor chilling plates and the confession for powering to the plurality of semiconductor chilling plate
Electric system, it is characterised in that the electric power system includes：
Power supply change-over device, is configured to for the alternating current power supply of outside input to be converted to DC voltage；
Clipper component, is electrically connected with the plurality of semiconductor chilling plate, and is configured to be converted to the DC voltage often
The individual semiconductor chilling plate required voltage value, wherein
The semiconductor freezer is provided with multiple warm areas, and the clipper component includes multiple outfans, and each described warm area is by institute
One or more stated in semiconductor chilling plate are freezed, and the semiconductor chilling plate of each warm area and the copped wave
One outfan connection of component；
The clipper component includes multiple inputs；
The power supply change-over device includes：Two Switching Power Supplies, each described Switching Power Supply is defeated with one of the clipper component
Enter end electrical connection, the voltage output range of one of them Switching Power Supply is set to make the semiconductor chilling plate work in height
Refrigerating efficiency section, the voltage output range of another Switching Power Supply is set to make the semiconductor chilling plate work in height
Refrigerating capacity section；The voltage output of each Switching Power Supply is set to the electricity that the semiconductor chilling plate needs powered by it
The peak of pressure value.
2. semiconductor freezer according to claim 1, it is characterised in that also include：
Multiple temperature measurement units, each described temperature measurement unit is configured to measure the cryogenic temperature of a warm area, with
The semiconductor chilling plate required voltage value of the warm area is determined according to the cryogenic temperature.
3. semiconductor freezer according to claim 1, it is characterised in that
The power supply change-over device also includes：Ac input end and rectification filtering module；Wherein
The ac input end is configured to connect the alternating current power supply of the outside input；And
The rectification filtering module is connected between described two Switching Power Supplies and the ac input end, and be configured to will be described
The alternating current power supply rectifying and wave-filtering of outside input is DC source.
4. semiconductor freezer according to claim 1, it is characterised in that the clipper component includes：
Multiple switch, each described switchgear distribution is into will meet described in the semiconductor chilling plate power reguirements of each warm area
Switching Power Supply is communicated on the semiconductor chilling plate of connection correspondence warm area, and exports each institute by changing the dutycycle of its switch
State semiconductor chilling plate required voltage value.
5. semiconductor freezer according to claim 4, it is characterised in that the clipper component also includes：
PDM keyer, is configured to according to each semiconductor chilling plate required voltage value to the corresponding switch
Pulse-width signal is sent, to change its duty cycle of switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005229.9A CN104534807B (en) | 2015-01-06 | 2015-01-06 | Semiconductor refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005229.9A CN104534807B (en) | 2015-01-06 | 2015-01-06 | Semiconductor refrigerator |
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| Publication Number | Publication Date |
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| CN104534807A CN104534807A (en) | 2015-04-22 |
| CN104534807B true CN104534807B (en) | 2017-04-12 |
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| CN201510005229.9A Active CN104534807B (en) | 2015-01-06 | 2015-01-06 | Semiconductor refrigerator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114484924A (en) * | 2020-11-11 | 2022-05-13 | 青岛海尔特种电冰柜有限公司 | Semiconductor refrigeration equipment and power supply control method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926246A (en) * | 1995-07-07 | 1997-01-28 | Matsushita Refrig Co Ltd | Control device for refrigerator |
| JP2001050625A (en) * | 1999-08-12 | 2001-02-23 | Hitachi Ltd | Refrigerator |
| CN101476809B (en) * | 2009-02-11 | 2011-08-17 | 陕西师范大学 | Semiconductor energy-saving environment-friendly refrigerator |
| KR20110059477A (en) * | 2009-11-27 | 2011-06-02 | 주성대학산학협력단 | The medical cold/heat machine |
| CN201910007U (en) * | 2010-11-30 | 2011-07-27 | 河北鸿久人生电子科技有限公司 | Semiconductor refrigerator control circuit using power adapter |
| CN203132242U (en) * | 2013-02-04 | 2013-08-14 | 王诗赟 | Stacking-type semiconductor refrigerator |
| DE202014002652U1 (en) * | 2014-03-27 | 2014-04-16 | Ningbo Ting Wei Electric Technology Co., Ltd. | Energy saving regulator for semiconductor refrigerator |
| CN203810826U (en) * | 2014-03-28 | 2014-09-03 | 海尔集团公司 | Refrigerator |
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2015
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