CN102323835B - A kind of electronic thermostat of band compressor start-up function - Google Patents
A kind of electronic thermostat of band compressor start-up function Download PDFInfo
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- CN102323835B CN102323835B CN201110113537.5A CN201110113537A CN102323835B CN 102323835 B CN102323835 B CN 102323835B CN 201110113537 A CN201110113537 A CN 201110113537A CN 102323835 B CN102323835 B CN 102323835B
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- compressor start
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Abstract
The electronic thermostat of a kind of band compressor start-up function, is made up of power circuit [1], single-chip microcomputer [7], compressor switch circuit [3], compressor start circuit [2], temperature-compensation circuit [4], temperature regulation and testing circuit [5] and LED group [6].This temperature controller is formed a control system by single-chip microcomputer, and its power circuit uses capacitance decompression, and the most positive and negative half-wave processes respectively, and the control system forming to single-chip microcomputer [7] after the rectified filtering voltage regulation of positive half cycle therein is powered;The LED group [6] giving refrigerating appliance interior lighting after the rectified filtering voltage regulation of negative half period provides power supply;Having two to be connected wire between compressor start circuit [2] with compressor [Cp], one is connected with compressor start winding [S], and another is connected with the starting winding [S] of compressor and the common port [C] of main winding [M].This temperature controller achieves the function of traditional compressor power consumption starter with very simple circuit on electronic thermostat, and simple circuit is with low cost, wide accommodation.
Description
Technical field
The present invention relates to a kind of temperature control equipment, the particularly electronic thermostat of small-sized refrigerating utensil.
Background technology
At present, use electronic technology to realize temperature controlled scheme to have a lot.For small-sized refrigerating utensil
Temperature control scheme mostly uses traditional compression-type temperature controller, its function singleness, simply realizes temperature
Degree controls, but it is with low cost, is widely used so obtaining.In recent years, carrying along with living standard
Height, people no longer meet simple temperature control requirement, begin to use single-chip microcomputer control on some refrigerating appliances
System processed, it is in addition to can realizing temp. control function, also addition of other functions many, such as warm
Degree display, touch key-press etc., but controlling and traditional compression-type temperature controller the compressor of refrigerating appliance
Control and zero difference, simply a kind of simple start-stop.
Small-sized refrigerating utensil generally uses single phase ac compressor to realize refrigerating function, and compressor is used
Load motor typically has two windings, and one is main winding, another for start winding (also known as secondary around
Group).Start winding to work when electric motor starting, and need to realize disconnecting after electric motor starting, and main winding
For realizing steady-state operation.Just because of there being the existence starting winding, compressor is the most all accompanied with starter,
Currently used starter has three types: Weight type starter, PTC starter, electronic type idle rise
Dynamic device.Weight type starter is rarely employed the most due to the defect of self;PTC starter is due to inexpensive mesh
Front use is very extensive, but has the power consumption of about 1~5 watt during its work, therefore has energy consumption especially at some
The refrigerating appliance that requires and use electronic type power consumption starter, but this starter is expensive, institute so that
With seldom.
Summary of the invention
It is an object of the invention to provide the electronic thermostat of a kind of band compressor start-up function, existing to solve
Electronic thermostat does not have the defect of compressor start function.Owing to being realization on the basis of electronic thermostat
Compressor start function, therefore it is with low cost, and achieve idle start, meet current environmental protection want
Ask, there is market application foreground widely.
The present invention is achieved in that the electronic thermostat of described band compressor start-up function (hereinafter referred to as
" temperature controller "), by power circuit 1, single-chip microcomputer 7, compressor switch circuit 3, compressor start circuit 2,
The regulation of temperature-compensation circuit 4, temperature and testing circuit 5 and LED group 6 form.This temperature controller is by monolithic
Machine 7 forms a control system, and its power circuit 1 uses capacitance decompression, and the most positive and negative half-wave processes respectively,
Power to single-chip computer control system after the rectified filtering voltage regulation of positive half cycle therein;The rectified filtering of negative half period is steady
Power supply, do so is provided to have two benefits to after pressure the LED group 6 of refrigerating appliance interior lighting: one is
With low cost, two is that two groups of power supplys are independent of each other, it is simple to individually control, especially for refrigerating appliance inside
The power supply of illuminating LED group 6 needs often switch;Can certainly the rectified filtering voltage regulation of negative half period
Power to single-chip computer control system afterwards, and use to refrigerating appliance interior lighting after the positive rectified filtering voltage regulation of half cycle
LED group 6 power supply is provided.Temperature controller is detected inside refrigerating appliance by temperature regulation and testing circuit 5
Temperature, drive compressor Cp when needs freeze by compressor switch circuit 3, meanwhile by pressure
Contracting machine starting circuit 2 drives the starting winding of compressor Cp, through after a while when compressor Cp start with
Rear shutoff compressor start circuit 2, thus achieves compressor Cp start-up function.Compressor start circuit
2 are controlled by single-chip microcomputer 7, the executive component of this starting circuit both can be bidirectional triode thyristor element also
It can be relay.Two are had to be connected wire between compressor start circuit 2 with compressor Cp, one and pressure
The starting winding S of contracting machine Cp connects, another starting winding S with compressor Cp and the public affairs of main winding M
End C is connected altogether.Original temperature controller has a wire being connected with the starting winding S of compressor Cp just energy real
The start-up function of existing compressor Cp, but when unexpected reason causes the overload protective device P of compressor Cp to move
Protect, and overload protective device P cooling recover connect after because temperature controller single-chip computer control system not
Know that compressor overload protector P protection act has connected the most again compressor Cp, cause the temperature controller can not be again
The secondary starting signal that is given, thus compressor Cp cannot start again.In order to solve compressor overload protector
The problem that P action and the compressor Cp that causes cannot start again, we are at the starting winding S of compressor Cp
One is introduced with the common port C (one end that typically overload protective device P is connected with compressor Cp) of main winding M
Holding wire is to temperature controller, and such temperature controller just can know that the overload protective device P when action of compressor Cp,
Compressor start circuit 2 weight is controlled immediately once compressor overload protector P action and recovery temperature controller
New starting once, thus can guarantee that compressor Cp normal starting.
Accompanying drawing and accompanying drawing explanation
Fig. 1 is the functional-block diagram of the present invention
Fig. 2 is a kind of embodiment schematic diagram of the present invention
Detailed description of the invention
Fig. 2 is a kind of embodiment schematic diagram of the present invention.
In fig. 2, L, N are single phase alternating current power supply input lines, and Cp is compressor, three of compressor Cp
Input line S, M, C are to start winding, main winding and common port respectively, and P is the overload protective device of compressor,
H1 is the refrigerating appliance heater for temperature-compensating.C1 is the capacitor for blood pressure lowering;U1 is single-chip microcomputer;
The positive half cycle of D3, R3, C3, D4, C4 alternating current power supply constitutes halfwave rectifier regulated power supply to above-mentioned with pressure
The single-chip computer control system of the electronic thermostat of contracting machine start-up function is powered;D1, D2, R2, C2 alternating current
The negative half period in source constitutes half-wave regulated power supply provides power supply to the LED group of refrigerating appliance interior lighting;R6、
Q2, R5, Q1, D5, K1 form compressor switch circuit;D7, R8, D6, R9, Q4 composition compressor rises
Galvanic electricity road, wherein Q4 is the bidirectional triode thyristor driving compressor start winding, it is also possible to replace with relay,
The signal deteching circuit of D7, R8, D6 composition compressor overload protector action, sends this signal into single-chip microcomputer
Control system;W1, RW, R10, R11, C5 composition temperature regulation and testing circuit.
The operation principle of above-mentioned temperature controller is such that the control system (letter below when single-chip microcomputer 7 composition
Claim single-chip computer control system) detect that the temperature within refrigerating appliance is high by temperature regulation and testing circuit 5
In user set temperature time export control signal to compressor switch circuit 3 go drive compressor Cp master around
Group M, meanwhile output control signal removes to drive the starting winding of compressor Cp to compressor start circuit 2
S, the main winding M of such compressor Cp and start winding S simultaneously electric, compressor Cp is operated, press
After contracting machine Cp operating, single-chip computer control system exports control signal close compressor starting circuit 2 immediately.Work as pressure
Contracting machine Cp is because after unexpected reason overload protective device P action disconnection, once overload protective device P closes again
Closing, signal is soon sent by the signal deteching circuit of the compressor overload protector action of D7, R8, D6 composition
Entering single-chip computer control system, system exports control signal immediately and goes to drive compressor to compressor start circuit 2
The starting winding S of Cp, compressor Cp main winding M and starting winding S obtain electrically actuated simultaneously.
Claims (6)
1. an electronic thermostat for band compressor start-up function, by power circuit (1), single-chip microcomputer (7),
Compressor switch circuit (3), compressor start circuit (2), temperature-compensation circuit (4), temperature regulation and
Testing circuit (5) and LED group (6) composition, is characterized in that: described compressor start circuit (2)
Two wires are had to be connected with compressor (Cp): a wire and the starting winding (S) of compressor (Cp)
It is connected, another starting winding (S) with compressor (Cp) and the common port (C) of main winding (M)
It is connected;Described power circuit (1) is to use its rectified filtering of positive half cycle after capacitor step-down and blood pressure lowering
To above-mentioned single-chip microcomputer (7), compressor switch circuit (3), compressor start circuit (2), temperature after voltage stabilizing
Degree compensates the control system offer power supply that circuit (4), temperature regulation and testing circuit (5) form, and bears half
The LED group (6) giving refrigerating appliance interior lighting after all rectified filtering voltage regulations provides power supply.
2. an electronic thermostat for band compressor start-up function, by power circuit (1), single-chip microcomputer (7),
Compressor switch circuit (3), compressor start circuit (2), temperature-compensation circuit (4), temperature regulation and
Testing circuit (5) and LED group (6) composition, is characterized in that: described compressor start circuit (2)
Two wires are had to be connected with compressor (Cp): a wire and the starting winding (S) of compressor (Cp)
It is connected, another starting winding (S) with compressor (Cp) and the common port (C) of main winding (M)
It is connected;Described power circuit (1) is to use the rectified filtering of its negative half period after capacitor step-down and blood pressure lowering
To above-mentioned single-chip microcomputer (7), compressor switch circuit (3), compressor start circuit (2), temperature after voltage stabilizing
Degree compensates the control system offer power supply that circuit (4), temperature regulation and testing circuit (5) form, positive half cycle
The LED group (6) giving refrigerating appliance interior lighting after rectified filtering voltage regulation provides power supply.
Electronic thermostat the most according to claim 1, it is characterised in that described compressor start circuit
(2) the driving executive component used is realized by bidirectional triode thyristor.
Electronic thermostat the most according to claim 1, it is characterised in that described compressor start circuit
(2) the driving executive component used is realized by relay.
Electronic thermostat the most according to claim 2, it is characterised in that described compressor start circuit
(2) the driving executive component used is realized by bidirectional triode thyristor.
Electronic thermostat the most according to claim 2, it is characterised in that described compressor start circuit
(2) the driving executive component used is realized by relay.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201110113537.5A CN102323835B (en) | 2011-05-03 | 2011-05-03 | A kind of electronic thermostat of band compressor start-up function |
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Application Number | Priority Date | Filing Date | Title |
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CN201110113537.5A CN102323835B (en) | 2011-05-03 | 2011-05-03 | A kind of electronic thermostat of band compressor start-up function |
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CN102323835A CN102323835A (en) | 2012-01-18 |
CN102323835B true CN102323835B (en) | 2016-08-10 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104079879A (en) * | 2014-06-30 | 2014-10-01 | 苏州固基电子科技有限公司 | Pressure-type temperature controller video monitoring and detecting device |
CN108679891A (en) * | 2018-07-24 | 2018-10-19 | 杭州星帅尔电器股份有限公司 | The control system and its control method of household refrigerators |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4322223A1 (en) * | 1993-07-03 | 1995-01-12 | Ako Werke Gmbh & Co | Regulating device (control device) for a compressor motor of a refrigerator and/or freezer |
CN1697957A (en) * | 2003-05-28 | 2005-11-16 | 松下电器产业株式会社 | Method of controlling compressor and controller |
CN101212193A (en) * | 2006-12-27 | 2008-07-02 | 谭琦 | Motor starter for mini-type refrigeration compressor |
CN201255842Y (en) * | 2008-08-22 | 2009-06-10 | 北京凯鼎国际科贸有限责任公司 | Electronic temperature controller |
CN201363852Y (en) * | 2008-12-24 | 2009-12-16 | 林伟奇 | Retrofitting automatic constant temperature controller of automobile air conditioner |
CN202103616U (en) * | 2011-05-03 | 2012-01-04 | 上海施达电子科技有限公司 | Electronic temperature controller having compressor starting function |
-
2011
- 2011-05-03 CN CN201110113537.5A patent/CN102323835B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4322223A1 (en) * | 1993-07-03 | 1995-01-12 | Ako Werke Gmbh & Co | Regulating device (control device) for a compressor motor of a refrigerator and/or freezer |
CN1697957A (en) * | 2003-05-28 | 2005-11-16 | 松下电器产业株式会社 | Method of controlling compressor and controller |
CN101212193A (en) * | 2006-12-27 | 2008-07-02 | 谭琦 | Motor starter for mini-type refrigeration compressor |
CN201255842Y (en) * | 2008-08-22 | 2009-06-10 | 北京凯鼎国际科贸有限责任公司 | Electronic temperature controller |
CN201363852Y (en) * | 2008-12-24 | 2009-12-16 | 林伟奇 | Retrofitting automatic constant temperature controller of automobile air conditioner |
CN202103616U (en) * | 2011-05-03 | 2012-01-04 | 上海施达电子科技有限公司 | Electronic temperature controller having compressor starting function |
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CN102323835A (en) | 2012-01-18 |
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