CN204880962U - Intermittent type formula ice box controller - Google Patents
Intermittent type formula ice box controller Download PDFInfo
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- CN204880962U CN204880962U CN201520571578.2U CN201520571578U CN204880962U CN 204880962 U CN204880962 U CN 204880962U CN 201520571578 U CN201520571578 U CN 201520571578U CN 204880962 U CN204880962 U CN 204880962U
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses an intermittent type formula ice box controller, including the controller body, the controller body include power switching circuit, power sampling module, intermittent type formula time block, demonstration and button module, temperature sensing module, buzzer circuit, compressor control module, solenoid valve control module, gate light control circuit, door -trip sampling circuit and fan control module. The utility model discloses a switching on and closing of control silicon controlled rectifier utilizes the accumulate of electric capacity and discharges, makes power switching circuit in intermittent type formula operating condition, has played the effect of intelligent power saving, through the collection of power self -learning to the power parameter, accomplish by microcontroller and adjust the proper motion of electrical parameter, realized the function of power self -learning, make this controller can adapt to the work of different powers, and operating voltage stabilize safety more.
Description
Technical field
The utility model relates to refrigerator controller field, particularly relates to a kind of batch (-type) refrigerator controller.
Background technology
Refrigerator is a kind of refrigeration plant keeping constant low temperature, is also a kind of product for civilian use making food or other article keep constant low temperature cold conditions.Have compressor, ice machine in casing in order to icing cabinet or case, with the hutch of refrigerating plant, people buy refrigerator, and be generally used to refrigeration and fresh-keeping food, some people also can use refrigerator to make cold drink.
Operationally, compressor constantly aspirates the refrigerant vapour in evaporimeter to refrigerator, and refrigerant compression is become high pressure, high-temperature steam sends to condenser.Refrigerant vapour releases heat within the condenser, and is condensed into liquid.Liquid refrigerant carries out filtration drying by device for drying and filtering, removes the impurity in cold-producing medium and moisture.Condensed liquid refrigerant passes through magnetic valve, the flow direction of solenoid control cold-producing medium and flow, cold-producing medium is preferentially through refrigeration, after refrigeration reaches the temperature of setting, will by sensor to magnetic valve signal, magnetic valve will cut out refrigeration, and cold-producing medium now only flows to freezing, reaches design temperature until freezing.Cold-producing medium enters restricting element capillary after magnetic valve, then enters evaporimeter.Cold-producing medium becomes low pressure from high pressure in restricting element capillary, and occurs the liquid of a small amount of gasification.When cold-producing medium leaves restricting element capillary, become liquid, gas two-phase mixtures state, then enter evaporimeter.Cold-producing medium is explosive evaporation in evaporimeter, from cooled object, draw required heat of gasification.Low pressure, temperature refrigerant vapor again by compressor suction, compress, enter and circulate next time.
Electricity consumption part mainly motor compressor and the lighting bulb of household electric refrigerator, in order to using electricity wisely, refrigerator inside is often provided with auto-breaking, and when temperature is suitable, compressor can quit work, and avoids compressor and to work the unnecessary electricity consumption waste caused always.
Disclosed in 12 days December in 2012, publication number is the intermittent temperature controller of refrigerator of CN102819277A, mainly solve the non-stop-machine technical problem of compressor, thus avoid following three problems: one is that the long-term Nonstop running machine of freezer compressor makes it tired and thoroughly damages; Two is that compressor is not shut down for a long time and can be caused unnecessary power wastage; Three is that refrigerator electricity consumption exists disaster hidden-trouble, but the starting point of this patent is when breaking down based on refrigerator, and most of time, freezer compressor and temperature controller are all in normal operation, namely, under refrigerator does not break down situation, such power consumption still still exists.
Utility model content
The utility model provides a kind of batch (-type) refrigerator controller for solving the problem, by controlling silicon controlled conducting and closedown, utilizing accumulate and the electric discharge of electric capacity, power-switching circuit being in service intermittent state, serving the effect of intelligent power saving; By the collection of power supply self study to power parameter, complete the adjustment voluntarily to electrical quantity by microcontroller, achieve the function of power supply self study, enable this controller adapt to the work of different electrical power, can zero cross detection circuit be replaced simultaneously, make operating voltage stability and safety more.
For achieving the above object, reach above-mentioned effect, the utility model is achieved through the following technical solutions:
A kind of batch (-type) refrigerator controller, comprise controller body, described controller body comprises power-switching circuit AC signal being converted to direct current signal, gather the power supply sampling module of power parameter, automatic energising, the intermittent timed module of software control power-off, the display providing people to operate and key-press module, the temperature sensing module of collecting temperature information, play the buzzer circuit of reminding effect, control the compressor control module of compressor operating, select the solenoid valve control module of freezing and refrigeration pipeline, the gate light control circuit of automatic switch gate light, gather the door switch sample circuit of door switch information and control the fan control module of fan operation, described microcontroller and power-switching circuit, power supply sampling module, intermittent timed module, display and key-press module, temperature sensing module, buzzer circuit, compressor control module, solenoid valve control module, gate light control circuit, door switch sample circuit, fan control module connects, and described intermittent timed module is connected with power-switching circuit.
Further, described power supply sampling module comprises sample circuit, described sample circuit is provided with rectification circuit, and described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, the button on described display and key-press module and Diode series, be connected with I/O mouth by wire, and described display and key-press module adopt LED or charactron or LCDs display.
Further, described temperature sensing module is provided with more than 1 or 2 or 2.
Further, described microcontroller is built-in with A/D modular converter and I/O circuit, described power supply sampling module, temperature sensing module are connected with microcontroller by A/D mouth, and described intermittent timed module, display and key-press module, buzzer circuit, compressor control module, solenoid valve control module, gate light control circuit, door switch sample circuit, fan control module are passed through I/O mouth and be connected with microcontroller.
Further, described compressor control module is connected with the compressor in refrigerator, and described solenoid valve control module is connected with the magnetic valve in refrigerator.
Further, described door switch sample circuit is connected with the switch in refrigerator doors, and described gate light control circuit is connected with the gate light in refrigerator.
The beneficial effects of the utility model are:
A kind of batch (-type) refrigerator controller, by controlling silicon controlled conducting and closedown, thus control power-switching circuit electric and dead electricity, serve the effect that intelligent power-off powers on; Utilize accumulate and the electric discharge of electric capacity, system can be worked on after a power failure, thus improve power consumption efficiency, serve the effect of intelligent power saving; By the cooperation of power supply sampling module and microcontroller, reach the effect of power supply self study, thus the compatibility technical problem of different electrical power index, this dust collector controller used in multiple country simultaneously, zero cross detection circuit can be replaced simultaneously, complete self-voltage regulation result, in global design, make this controller function more powerful, electricity consumption is saved more safely, accommodation is more extensive, uses more intelligent, meets the development trend of society now.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of description, coordinate accompanying drawing to be described in detail as follows with preferred embodiment of the present utility model below, detailed description of the invention of the present utility model provides in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is a kind of example structure schematic diagram of a kind of batch (-type) refrigerator controller that the utility model relates to;
Fig. 2 is a kind of embodiment schematic diagram of the power-switching circuit that the utility model relates to;
Fig. 3 is the another kind of embodiment schematic diagram of the power-switching circuit that the utility model relates to;
Fig. 4 is a kind of embodiment schematic diagram of the power supply sampling module that the utility model relates to;
Fig. 5 is a kind of embodiment schematic diagram of the intermittent timed module that the utility model relates to;
Fig. 6 is a kind of embodiment schematic diagram of the display that relates to of the utility model and key-press module;
Fig. 7 is a kind of embodiment schematic diagram of the temperature sensing circuit that the utility model relates to;
Fig. 8 is a kind of embodiment schematic diagram of the buzzer circuit that the utility model relates to;
Fig. 9 is a kind of embodiment schematic diagram that compressor control module that the utility model relates to is connected with refrigerator inner compressor;
Figure 10 is a kind of embodiment schematic diagram that solenoid valve control module that the utility model relates to is connected with magnetic valve in refrigerator;
Figure 11 is a kind of embodiment schematic diagram that gate light control circuit that the utility model relates to is connected with refrigerator gate light;
Figure 12 is a kind of embodiment schematic diagram that door switch sample circuit that the utility model relates to is connected with refrigerator door open-close;
Figure 13 is a kind of embodiment schematic diagram that fan control module that the utility model relates to is connected with refrigerator inner blower;
Figure 14 is the waveform schematic diagram of alternating current after rectification circuit that the utility model relates to.
In FIG, power-switching circuit 1, power supply sampling module 2, intermittent timed module 3, display and key-press module 4, temperature sensing module 5, microcontroller 6, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11 and fan control module 12.
In the circuit diagram of Fig. 2-Figure 13, L is live wire, and N is zero line, and T is transformer, D
1-D
7for diode, wherein D
1with D
4for rectifier bridge, VT
1-VT
9for the triode of NPN type, ZD is Zener diode, LED
1-LED
7for light emitting diode, wherein LED
7for refrigerator gate light, C
1-C
9for electric capacity, wherein C
1, C
4for polar capacitor, R
1-R
21for resistance, SW
1-SW
4for switch, wherein SW
4for refrigerator door open-close, I/O
1-I/O
13for the I/O interface of microcontroller, A/D
1-A/D
2for the A/D interface of microcontroller, V
dDfor the operating voltage of chip, V
cCfor the power supply of circuit, GND is earth terminal, and TR is bidirectional triode thyristor, G, T
1, T
2for three pins of TR, IC
1for light activated power thyristor, BH is temperature sensor, and BUZ is buzzer, M
1for the compressor in refrigerator, C, S, M are three pins of compressor, and PTC is starter, K
1, K
2, K
3for relay, YV is the magnetic valve in refrigerator, M
2for the blower fan in refrigerator.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As shown in Fig. 1-Figure 14, a kind of batch (-type) refrigerator controller, comprises controller body, and described controller body comprises the power-switching circuit 1 AC signal being converted to direct current signal, gather the power supply sampling module 2 of power parameter, automatic energising, the intermittent timed module 3 of software control power-off, the display providing people to operate and key-press module 4, the temperature sensing module 5 of collecting temperature information, play the buzzer circuit 7 of reminding effect, control the compressor control module 8 of compressor operating, select the solenoid valve control module 9 of freezing and refrigeration pipeline, the gate light control circuit 10 of automatic switch gate light, gather the door switch sample circuit 11 of door switch information and control the fan control module 12 of fan operation, described microcontroller 6 and power-switching circuit 1, power supply sampling module 2, intermittent timed module 3, display and key-press module 4, temperature sensing module 5, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11, fan control module 12 connects, described intermittent timed module 3 is connected with power-switching circuit 1, described intermittent timed module 3, by controlling silicon controlled conducting and closedown, utilizes accumulate and the electric discharge of electric capacity, power-switching circuit is in service intermittent state.
Further, described power supply sampling module 2 comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller 6 is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, calculated every electrical quantity of access power supply by software algorithm in microcontroller 6, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses.
Further, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, the button on described display and key-press module 4 and Diode series, be connected with I/O mouth by wire, for inputting user instruction to refrigerator controller; Described display and key-press module 4 adopt LED or charactron or LCDs to show, for the working of display refrigerator.
Further, described temperature sensing module 5 is provided with more than 1 or 2 or 2.
Further, described microcontroller 6 is built-in with A/D modular converter and I/O circuit, described power supply sampling module 2, temperature sensing module 5 are connected with microcontroller 6 by A/D mouth, and described intermittent timed module 3, display and key-press module 4, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11, fan control module 12 are connected with microcontroller 6 by I/O mouth.
Further, described compressor control module 8 is connected with the compressor in refrigerator, and described solenoid valve control module 9 is connected with the magnetic valve in refrigerator.
Further, described door switch sample circuit 11 is connected with the switch in refrigerator doors, and described gate light control circuit 10 is connected with the gate light in refrigerator, when refrigerator doors is opened, switch closes, circuit turn-on, Continuity signal is transferred to microcontroller 6, sends control signal by microcontroller 6, light gate light, when refrigerator doors is closed, cut-off switch, extinguishes gate light.
Specific embodiment
In the middle of the integrated circuit structure chart of Fig. 1, after power-switching circuit carries out Power convert, stable output voltage is provided to supply microcontroller work; The information of the access of power supply sampling module collection simultaneously power supply, every electrical quantity of access power supply is calculated by the A/D conversion in microcontroller and software algorithm, electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses; Intermittent timed module, by controlling silicon controlled conducting and closedown, utilizes accumulate and the electric discharge of electric capacity, makes power-switching circuit be in service intermittent state; Button on display and key-press module sets, and carries out the control to refrigerator, thus the operation requirements of completing user according to the software code of burning on microcontroller; Temperature sensing circuit gathers temperature information in refrigerator, and transfers signals in microcontroller; The signal that buzzer circuit sends according to microcontroller carries out work, to reach the effect of prompting; Compressor control module receives the control signal that microcontroller sends, thus the compressor in control refrigerator completes kind of refrigeration cycle, solenoid valve control module receives the control signal that microcontroller sends, thus refrigerant flow direction changed by the magnetic valve in control refrigerator, thus control the refrigerating state of refrigerating chamber and refrigerating chamber; Gate light control circuit and door switch sample circuit coordinate, and by microcontroller as maincenter, thus reach turn on light bright, door of door and to turn off the light the technique effect gone out; Fan control module is by microprocessor control, thus the blower fan controlled in refrigerator impels refrigerator inside air to flow.
Fig. 2 is a kind of preferred embodiment of power-switching circuit, receive 220V alternating current from zero line N and live wire L, carry out the lifting to voltage by transformer T, polarity of voltage is now upper just lower negative, then the unidirectional general character of the electric current of diode D is utilized, with four diode composition rectifier bridge D
1, make alternating current become unidirectional pulsating volage, utilize electric capacity every the characteristic of straight-through friendship, by electric capacity C
1in parallel with rectifier bridge, thus the AC signal in filtering pulsating volage, make the DC voltage that voltage becomes smoother, i.e. the supply voltage V of circuit
cC.
Fig. 3 is the another kind of embodiment of power-switching circuit, utilizes the capacitive reactance current limliting of electric capacity, by electric capacity C
3with resistance R
1be connected in series to after parallel connection on live wire, pass through D
2and D
3the unidirectional half-wave rectifying circuit of composition, makes alternating current become unidirectional pulsating volage, carries out voltage stabilizing, pass through C by Zener diode ZD
4, C
5carry out filtering, make the DC voltage that voltage becomes smoother, be i.e. the supply voltage V of circuit
cC.
Fig. 4 is a kind of preferred embodiment of power supply sampling module, passes through D
4carry out rectification, voltage source is through R
2, R
3carry out data sampling, optionally at R
10a upper electric capacity C in parallel
6, make R
3on voltage waveform compare elimination High-frequency Interference, sampled data passes through A/D
1oral instructions are passed to A/D modular converter, convert the analog signal collected to data signal by A/D modular converter, and the software algorithm of data signal in microcontroller calculates every electrical quantity of access power supply, thus carries out self-control according to electrical quantity.
Fig. 5 is a kind of embodiment of intermittent timed module, when not powering on, and I/O
1be low level with VDD, so light activated power thyristor IC
1elementary do not have power supply, secondary light activated power thyristor IC
1not conducting, now, G, T
1between pass through R
6, R
7from L, N power taking, controllable silicon TR is triggered conducting, now power-switching circuit 1 electric, controller normally runs, electric capacity C
7store electrical energy; After device to be controlled runs a period of time, judged to have a power failure by house software algorithm, I/O
1input high level, electric capacity C
7be charged to VDD, now light activated power thyristor IC
1elementary conducting, secondary light activated power thyristor IC
1conducting, makes G, T
1short circuit, TR closes, power-switching circuit 1 dead electricity, system power failure, electric capacity C
7pass through R
5, IC
1discharge, keep light activated power thyristor IC
1conducting, until electric capacity C
7on voltage cannot drive IC
1elementary, now light activated power thyristor IC
1disconnect, TR conducting, thus make power-switching circuit 1 be in the middle of service intermittent, electric capacity C
7repeat accumulate electric discharge, to keep the normal operation of microcontroller.
Fig. 6 is a kind of preferred embodiment of display and key-press module, adopts LED display (to be chosen as numeral method or LCDs display, R
8-R
13as current-limiting resistance, pass through I/O
2-I/O
7mouth is connected with microcontroller, R
11and VT
2as LED
1and LED
2drive circuit, pass through SW
1button controls, simultaneously SW
1connect a diode D
5, prevent SW
1when pressing, interacting between I/O, its LED
3-LED
6, SW
2, SW
3operation principle with reference to LED
1, LED
2, SW
1.
Fig. 7 is a kind of preferred embodiment of temperature sensing circuit; By series resistance R
15, reduce the electric current on temperature sensor BH, the normal work of protection temperature sensor BH, by filter capacitor C
8with resistance R
14reduce interference, and temperature information is passed through A/D
2be transferred in microcontroller and carry out Treatment Analysis.
Fig. 8 is a kind of preferred embodiment of buzzer circuit, uses I/O
8mouthful timing trigging signal drive buzzer, with I/O
7a triode VT is increased in the middle of connecting
4drive, make buzzer sound larger to increase driving force, I/O
8on be connected with pull-up resistor R
16, play protective separation measure.
Fig. 9 is a kind of embodiment that compressor control module is connected with refrigerator inner compressor, passes through relay K
iwith compressor M
1connect, play the effect automatically regulated, S, M two ends starter PTC and start-up capacitance C in parallel
9, for starting compressor M
1.
Figure 10 is a kind of embodiment that solenoid valve control module is connected with magnetic valve in refrigerator; Pass through relay K
2be connected with magnetic valve YV, play the effect automatically regulated, magnetic valve YV has two passages simultaneously, connect refrigerating chamber and refrigerating chamber respectively, by the closedown of control channel, make refrigerant flow direction refrigerating chamber or refrigerating chamber.
Figure 11 is a kind of embodiment that gate light control circuit is connected with refrigerator gate light, microprocessor control refrigerator gate light LED
7light on and off, R
19, VT
8as refrigerator gate light LED
7drive circuit.
Figure 12 is a kind of embodiment of door switch sample circuit and refrigerator door open-close, when refrigerator doors is shut time, and refrigerator door open-close SW
4be in disconnection, circuit not conducting, when refrigerator doors is opened time, refrigerator door open-close SW
4be in connection status, circuit turn-on, and by whether the information transmission of conducting on microcontroller.
Figure 13 is a kind of embodiment that fan control module is connected with refrigerator inner blower, passes through relay K
3with blower fan M
2connect, play the effect automatically regulated.
Figure 14 is the waveform schematic diagram of alternating current after rectification circuit, namely the polarity of voltage of alternating current is upper just lower negative originally, shown in the upper figure namely in Figure 13, adopts the single phase bridge type rectifier circu in preferred embodiment, thus obtain a unidirectional pulsating volage, shown in the figure below namely in Figure 13.
Shown in Figure 11 and Figure 12, when refrigerator doors is shut time, refrigerator door open-close SW
4be in disconnection, circuit not conducting, passes through I/O
11be transferred to microcontroller, microcontroller processes, and passes through I/O
10make refrigerator gate light LED
7extinguish; When refrigerator doors is opened time, refrigerator door open-close SW
4be in connection status, circuit turn-on, pass through I/O
11be transferred to microcontroller, microcontroller processes, and passes through I/O
10make refrigerator gate light LED
7light.
Shown in composition graphs 4 and Figure 14, alternating current, after rectification circuit, becomes unidirectional pulsating volage, and we take sinusoidal ac as object, its sinusoidal quantity U
0=U
msin (ω t+ ψ)=U
msin (2 π f*t+ ψ)=U
m(wherein ω is angular frequency to sin (2 π/T*t+ ψ), and ψ is initial phase, U
mfor voltage peak, f is supply frequency, and T is the cycle), repeating rule and can draw cycle T according to data, thus according to f=1/T, ω=2 π f, draw supply frequency f and angular frequency, can U be calculated by carrying out root mean square calculation to the data in the cycle
have, and obtain voltage peak U
m, as t=0, U
0=U
msin ψ, contrasting voltage in other cycles is U
0time phase place, thus draw initial phase ψ, and according to a large amount of data acquisitions with further analyze, thus draw every electrical quantity of access power supply, to reach the effect of power supply self study, thus adapt to different access power supplys.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (7)
1. a batch (-type) refrigerator controller, comprises controller body, it is characterized in that: described controller body comprises the power-switching circuit (1) AC signal being converted to direct current signal, gather the power supply sampling module (2) of power parameter, automatic energising, the intermittent timed module (3) of software control power-off, the display providing people to operate and key-press module (4), the temperature sensing module (5) of collecting temperature information, play the buzzer circuit (7) of reminding effect, control the compressor control module (8) of compressor operating, select the solenoid valve control module (9) of freezing and refrigeration pipeline, the gate light control circuit (10) of automatic switch gate light, gather the door switch sample circuit (11) of door switch information and control the fan control module (12) of fan operation, described microcontroller (6) and power-switching circuit (1), power supply sampling module (2), intermittent timed module (3), display and key-press module (4), temperature sensing module (5), buzzer circuit (7), compressor control module (8), solenoid valve control module (9), gate light control circuit (10), door switch sample circuit (11), fan control module (12) connects, and described intermittent timed module (3) is connected with power-switching circuit (1).
2. a kind of batch (-type) refrigerator controller according to claim 1, it is characterized in that: described power supply sampling module (2) comprises sample circuit, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
3. a kind of batch (-type) refrigerator controller according to claim 1, it is characterized in that: the button on described display and key-press module (4) and Diode series, be connected with I/O mouth by wire, described display and key-press module (4) adopt LED or charactron or LCDs to show.
4. a kind of batch (-type) refrigerator controller according to claim 1, is characterized in that: described temperature sensing module (5) is provided with more than 1 or 2 or 2.
5. a kind of batch (-type) refrigerator controller according to claim 1, it is characterized in that: described microcontroller (6) is built-in with A/D modular converter and I/O circuit, described power supply sampling module (2), temperature sensing module (5) is connected with microcontroller (6) by A/D mouth, described intermittent timed module (3), display and key-press module (4), buzzer circuit (7), compressor control module (8), solenoid valve control module (9), gate light control circuit (10), door switch sample circuit (11), fan control module (12) is connected with microcontroller (6) by I/O mouth.
6. a kind of batch (-type) refrigerator controller according to claim 1, is characterized in that: described compressor control module (8) is connected with the compressor in refrigerator, and described solenoid valve control module (9) is connected with the magnetic valve in refrigerator.
7. a kind of batch (-type) refrigerator controller according to claim 1, is characterized in that: described door switch sample circuit (11) is connected with the switch in refrigerator doors, and described gate light control circuit (10) is connected with the gate light in refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571578.2U CN204880962U (en) | 2015-07-31 | 2015-07-31 | Intermittent type formula ice box controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571578.2U CN204880962U (en) | 2015-07-31 | 2015-07-31 | Intermittent type formula ice box controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204880962U true CN204880962U (en) | 2015-12-16 |
Family
ID=54825325
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|---|---|---|---|
| CN201520571578.2U Active CN204880962U (en) | 2015-07-31 | 2015-07-31 | Intermittent type formula ice box controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204880962U (en) |
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2015
- 2015-07-31 CN CN201520571578.2U patent/CN204880962U/en active Active
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