CN104236247A - Control device of freezer and freezer comprising control device - Google Patents

Control device of freezer and freezer comprising control device Download PDF

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Publication number
CN104236247A
CN104236247A CN201410476445.7A CN201410476445A CN104236247A CN 104236247 A CN104236247 A CN 104236247A CN 201410476445 A CN201410476445 A CN 201410476445A CN 104236247 A CN104236247 A CN 104236247A
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CN
China
Prior art keywords
control
circuit
freezer
control chip
refrigerator
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Pending
Application number
CN201410476445.7A
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Chinese (zh)
Inventor
张岩
陈潘送
万江
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Hefei Midea Refrigerator Co Ltd
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Hefei Midea Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hefei Midea Refrigerator Co Ltd filed Critical Hefei Midea Refrigerator Co Ltd
Priority to CN201410476445.7A priority Critical patent/CN104236247A/en
Publication of CN104236247A publication Critical patent/CN104236247A/en
Pending legal-status Critical Current

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Abstract

The invention provides a control device of a freezer. The control device of the freezer comprises a temperature detection circuit, a key control circuit, a display module circuit, a relay control circuit and a control chip, wherein the temperature detection circuit is used for detecting temperature in the freezer; the key control circuit is used for receiving a command input by a user; the display module circuit is used for performing display according to a control command of the control chip; the relay control circuit is used for working according to the control command of the control chip; the control chip is connected with the temperature detection circuit, the key control circuit, the display module circuit and the relay control circuit; the control command is sent by the control chip according to the temperature detected by the temperature detection circuit and the command input by the user. The invention also provides the freezer. The control device of the freezer, provided by the embodiment of the invention, has the advantages that the function is multiple, the cost is low, and the structure is simple.

Description

The control device of refrigerator-freezer and there is its refrigerator-freezer
Technical field
The present invention relates to technical field of refrigeration equipment, particularly a kind of refrigerator-freezer control device and there is its refrigerator-freezer.
Background technology
Master control borad on existing refrigerator and aobvious control plate are all two pieces of independent computer boards.Master control borad be one allow each components and parts can concentrate run get up computer board.Master control borad Circuits System generally has the elements such as power module, I/O control chip, load control circuit, DC power supply connector.Master control borad is major function and other the miscellaneous function of implementing refrigerator.User is operated by aobvious control plate, and sends instruction by aobvious control plate and carry out work to allow master control borad, generally has display interface and button etc. above aobvious control plate.
There is following problem in existing refrigerator-freezer: master control borad and aobvious control plate are two independently chips, due between need to intercom mutually, it installs more complicated, connects up loaded down with trivial details.And cost is higher.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, one object of the present invention is the control device proposing a kind of refrigerator-freezer.The control device of this refrigerator-freezer has that function is many, cost is low, the simple advantage of structure.
Another object of the present invention is to propose a kind of refrigerator-freezer.
To achieve these goals, the embodiment of a first aspect of the present invention discloses a kind of control device of refrigerator-freezer, comprising: temperature sensing circuit, and described temperature sensing circuit is for detecting the temperature in refrigerator-freezer; Key control circuit, described key control circuit is for receiving the instruction of user's input; Display module circuit, described display module circuit is used for showing according to the control instruction of control chip; Control relay circuit, described control relay circuit is used for carrying out work according to the control instruction of control chip; Control chip, described control chip is connected with described control relay circuit with described temperature sensing circuit, described key control circuit, described display module circuit, and the instruction of the temperature that described control chip detects according to described temperature sensing circuit and described user input sends described control instruction.
According to the control device of the refrigerator-freezer of the embodiment of the present invention, realize aobvious control and the master control of refrigerator-freezer by a control chip, save the cost of control chip, save material, and it is simple to have circuit structure, be easy to the advantage of assembling.Improve the reliability of refrigerator-freezer.
In addition, the control device of refrigerator-freezer according to the above embodiment of the present invention can also have following additional technical characteristic:
Further, also comprise: door switch testing circuit, described door switch testing circuit is connected with described control chip, and whether described door switch testing circuit is in opening for the body detecting described refrigerator-freezer, and testing result is sent to described control chip.
Further, described control chip is the R5F10368 chip of RENESAS, and described RSF10368 chip has 20 pins.
Further, a pin of described control chip is connected to control compressor with described control relay circuit, a pin of described control chip is connected with described temperature sensing circuit, two pins of described control chip are connected with described key control circuit, and eight pins of described control chip are connected with described display module circuit.
Further, described key control circuit comprises: the first button, one end ground connection of described first button; Second button, one end ground connection of described second button; First resistance, one end of described first resistance is connected with the other end of described first button, and the other end of described first resistance is connected with described control chip; Second resistance, one end of described second resistance is connected with the other end of described second button, and the other end of described second resistance is connected with described control chip; 3rd resistance, one end of described 3rd resistance is connected with power supply, and the other end of described 3rd resistance is connected with the other end of described first button; 4th resistance, one end of described 4th resistance is connected with power supply, and the other end of described 4th resistance is connected with the other end of described second button; First electric capacity, one end ground connection of described first electric capacity, the other end of described first electric capacity is connected with the other end of described first button; And second electric capacity, one end ground connection of described second electric capacity, the other end of described second electric capacity is connected with the other end of described second button.
The embodiment of second aspect present invention discloses a kind of refrigerator-freezer, comprises the control device as described in above-described embodiment.This refrigerator-freezer realizes aobvious control and the master control of refrigerator-freezer by a control chip, saves the cost of control chip, saves material, and it is simple to have circuit structure, is easy to the advantage of assembling.Improve the reliability of refrigerator-freezer.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structured flowchart of the control device of refrigerator-freezer according to an embodiment of the invention; And
Fig. 2 is the circuit diagram of the control device of refrigerator-freezer according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Below in conjunction with accompanying drawing description according to the control device of the refrigerator-freezer of the embodiment of the present invention and the refrigerator-freezer with it.
Fig. 1 is the structured flowchart of the control device of refrigerator-freezer according to an embodiment of the invention.As shown in Figure 1, the control device of refrigerator-freezer according to an embodiment of the invention, comprising: temperature sensing circuit 110, key control circuit 120, display module circuit 130, control relay circuit 140 and control chip 150.
Wherein, temperature sensing circuit 110 is for detecting the temperature in refrigerator-freezer.Key control circuit 120 is for receiving the instruction of user's input.Display module circuit 130 is for showing according to the control instruction of control chip 150.Control relay circuit 140 carries out work for the control instruction according to control chip 150.Control chip 150 is connected with control relay circuit 140 with temperature sensing circuit 110, key control circuit 120, display module circuit 130, the instruction sending controling instruction of the temperature that control chip 150 detects according to temperature sensing circuit 110 and user's input.
As from the foregoing, the control device of the refrigerator-freezer of the embodiment of the present invention, by a control chip 150, can realize display and the controlling functions of refrigerator-freezer.Such as: the instruction being received user by key control circuit 120, key control circuit 120 sends the instruction of user to control chip 150, temperature sensing circuit 110 sends the temperature in the refrigerator-freezer detected to control chip 150, control chip 150 just can generate corresponding control instruction, and control instruction is sent to control relay circuit 140, so that control relay circuit 140 performs corresponding action, as a concrete application, control relay circuit 140 is as the on-off circuit of compressor, thus, just the control to compressor can be realized by control chip 150, simultaneously, display module circuit 130 can show accordingly according to the control instruction of control chip 150, thus only need a control chip 150, just display and the control of refrigerator-freezer can be realized.
Compared in correlation technique, display or aobvious control need aobvious control chip, a master control (on off control as compressor) to need a main control chip, the control device of the refrigerator-freezer of the embodiment of the present invention realizes aobvious control and the master control of refrigerator-freezer by a control chip, save the cost of control chip, save material, and it is simple to have circuit structure, be easy to the advantage of assembling.Improve the reliability of refrigerator-freezer.
Shown in composition graphs 1, in one embodiment of the invention, the control device of refrigerator-freezer, also comprise: door switch testing circuit 160, door switch testing circuit 160 is connected with control chip 150, whether door switch testing circuit 160 is in opening for the body detecting refrigerator-freezer, and testing result is sent to control chip 150.Thus, can also judge whether the door of refrigerator-freezer closes by control chip 150, as a concrete application, when control chip 150 judges that door is opened for a long time, can alarm signal be sent, to point out user to close the door in time, save energy consumption and ensure refrigerator-freezer refrigeration.
Composition graphs 1 again, the control device of refrigerator-freezer also includes power module 170.Power module 170 is connected with control chip 150, thinks that the control device of refrigerator-freezer is powered.
Specifically, for a kind of refrigerator-freezer applying above-mentioned control device, the load of refrigerator includes but not limited to: compressor, temperature sensing circuit 110.When inputting the voltage of 85 ~ 264VAC to power module 170, it is made to export as 12VDC200mA non-isolated accessory power supply by power module 170.Be 5V voltage by 12V voltage transitions more afterwards.12V voltage can be used to power to control relay circuit 140, and 5V can be used to power supplies such as control chip 150, key control circuit 120 and display module circuit 130.Wherein, control relay circuit 140 uses as the on-off circuit of compressor.
Control chip 150 is the R5F10368 chip of RENESAS, and RSF10368 chip has 20 pins.Namely control chip 150 selects the R5F10368 chip of the 20pin of RENESAS.Furthermore, a pin of control chip 150 is connected to control compressor with control relay circuit 140, a pin of control chip 150 is connected with temperature sensing circuit 110, two pins of control chip 150 are connected with key control circuit 120, and eight pins of control chip 150 are connected with display module circuit 130.
Specifically, as shown in Figure 2, control chip 150 (i.e. R5F10368 chip) has 12 CMOS I/O ports, 4 CMOS input ports, and leakage I/O port opened by 2 N ditches.AVrefP mouth is used for contact relay control circuit 140, realizes compressor start-stop by input low and high level control relay; P41 mouth is connected with temperature sensing circuit 110, determines the actual temperature value size in refrigerator-freezer.
In addition, AVrefM with the P22 mouth of the control chip 150 of the embodiment of the present invention is connected with key control circuit 120, thus determine button actual act by key control circuit 120, when button is pressed, control chip 150 gathers as low level, now Low level effective, control chip 150 works temperature to be adjusted to and rises or once fall.Pin11 ~ Pin18 meets the COM0 ~ COM2 of display module circuit 130 respectively, SEG0 ~ SEG4.Display module circuit 130 realizes temperature adjustment by scan mode in conjunction with button low and high level and controls.When display module circuit 130 is common anode pole, if the com port of control chip 150 is to low level, when SEG mouth is to low level, corresponding LED segment is lighted.The signal given by button realizes temp regulating function to LED signal again.
Shown in composition graphs 2, key control circuit 120 comprises: the first button SW1, the second button SW2, the first resistance R7, the second resistance R8, the 3rd resistance R5, the 4th resistance R6, the first electric capacity C5 and the second electric capacity C6.Wherein, one end ground connection (GND) of the first button SW1.One end ground connection of the second button SW2.One end of first resistance R7 is connected with the other end of the first button SW1, and the other end of the first resistance R7 is connected with control chip 150.One end of second resistance R8 is connected with the other end of the second button SW2, and the other end of the second resistance R8 is connected with control chip 150.One end of 3rd resistance R5 is connected with power supply, and the other end of the 3rd resistance R5 is connected with the other end of the first button SW1.One end of 4th resistance R6 is connected with power supply, and the other end of the 4th resistance R6 is connected with the other end of the second button SW2.One end ground connection of the first electric capacity C5, the other end of the first electric capacity C5 is connected with the other end of the first button SW1, one end ground connection of the second electric capacity C6, and the other end of the second electric capacity C6 is connected with the other end of the second button SW2.
According to the control device of the refrigerator-freezer of the embodiment of the present invention, realize aobvious control and the master control of refrigerator-freezer by a control chip, save the cost of control chip, save material, and it is simple to have circuit structure, be easy to the advantage of assembling.Improve the reliability of refrigerator-freezer.
Further embodiment of the present invention discloses a kind of refrigerator-freezer, comprising: the control device as described in any one embodiment above-mentioned.This refrigerator-freezer realizes aobvious control and the master control of refrigerator-freezer by a control chip, saves the cost of control chip, saves material, and it is simple to have circuit structure, is easy to the advantage of assembling.Improve the reliability of refrigerator-freezer.
In addition, according to the refrigerator-freezer of the embodiment of the present invention other form and effect be all known for the ordinary skill in the art, in order to reduce redundancy, do not repeat herein.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.

Claims (6)

1. a control device for refrigerator-freezer, is characterized in that, comprising:
Temperature sensing circuit, described temperature sensing circuit is for detecting the temperature in refrigerator-freezer;
Key control circuit, described key control circuit is for receiving the instruction of user's input;
Display module circuit, described display module circuit is used for showing according to the control instruction of control chip;
Control relay circuit, described control relay circuit is used for carrying out work according to the control instruction of control chip;
Control chip, described control chip is connected with described control relay circuit with described temperature sensing circuit, described key control circuit, described display module circuit, and the instruction of the temperature that described control chip detects according to described temperature sensing circuit and described user input sends described control instruction.
2. the control device of refrigerator-freezer as claimed in claim 1, is characterized in that, also comprise:
Door switch testing circuit, described door switch testing circuit is connected with described control chip, and whether described door switch testing circuit is in opening for the body detecting described refrigerator-freezer, and testing result is sent to described control chip.
3. the control device of refrigerator-freezer as claimed in claim 1, it is characterized in that, described control chip is the R5F10368 chip of RENESAS, and described RSF10368 chip has 20 pins.
4. the control device of refrigerator-freezer as claimed in claim 3, it is characterized in that, a pin of described control chip is connected to control compressor with described control relay circuit, a pin of described control chip is connected with described temperature sensing circuit, two pins of described control chip are connected with described key control circuit, and eight pins of described control chip are connected with described display module circuit.
5. the control device of refrigerator-freezer as claimed in claim 4, it is characterized in that, described key control circuit comprises:
First button, one end ground connection of described first button;
Second button, one end ground connection of described second button;
First resistance, one end of described first resistance is connected with the other end of described first button, and the other end of described first resistance is connected with described control chip;
Second resistance, one end of described second resistance is connected with the other end of described second button, and the other end of described second resistance is connected with described control chip;
3rd resistance, one end of described 3rd resistance is connected with power supply, and the other end of described 3rd resistance is connected with the other end of described first button;
4th resistance, one end of described 4th resistance is connected with power supply, and the other end of described 4th resistance is connected with the other end of described second button;
First electric capacity, one end ground connection of described first electric capacity, the other end of described first electric capacity is connected with the other end of described first button; And
Second electric capacity, one end ground connection of described second electric capacity, the other end of described second electric capacity is connected with the other end of described second button.
6. a refrigerator-freezer, is characterized in that, comprises the control device as described in any one of claim 1-5.
CN201410476445.7A 2014-09-17 2014-09-17 Control device of freezer and freezer comprising control device Pending CN104236247A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111142452A (en) * 2020-01-16 2020-05-12 长虹美菱股份有限公司 Refrigerator control system using knob controller
CN115307378A (en) * 2022-07-29 2022-11-08 澳柯玛股份有限公司 Refrigerator control method capable of being set by user in user-defined mode

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101672558A (en) * 2009-09-22 2010-03-17 青岛澳柯玛股份有限公司 Refrigerator with timing and alarming functions during opening door
CN202109722U (en) * 2011-06-17 2012-01-11 杭州路格科技有限公司 Remote temperature monitoring instrument
CN202902729U (en) * 2012-11-29 2013-04-24 无锡职业技术学院 Electronic small refrigerator
CN204177119U (en) * 2014-09-17 2015-02-25 合肥美的电冰箱有限公司 The control device of refrigerator-freezer and there is its refrigerator-freezer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101672558A (en) * 2009-09-22 2010-03-17 青岛澳柯玛股份有限公司 Refrigerator with timing and alarming functions during opening door
CN202109722U (en) * 2011-06-17 2012-01-11 杭州路格科技有限公司 Remote temperature monitoring instrument
CN202902729U (en) * 2012-11-29 2013-04-24 无锡职业技术学院 Electronic small refrigerator
CN204177119U (en) * 2014-09-17 2015-02-25 合肥美的电冰箱有限公司 The control device of refrigerator-freezer and there is its refrigerator-freezer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111142452A (en) * 2020-01-16 2020-05-12 长虹美菱股份有限公司 Refrigerator control system using knob controller
CN115307378A (en) * 2022-07-29 2022-11-08 澳柯玛股份有限公司 Refrigerator control method capable of being set by user in user-defined mode
CN115307378B (en) * 2022-07-29 2024-01-09 澳柯玛股份有限公司 Refrigerator control method capable of being set by user in user-defined mode

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