CN204177119U - The control device of refrigerator-freezer and there is its refrigerator-freezer - Google Patents
The control device of refrigerator-freezer and there is its refrigerator-freezer Download PDFInfo
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- CN204177119U CN204177119U CN201420536391.4U CN201420536391U CN204177119U CN 204177119 U CN204177119 U CN 204177119U CN 201420536391 U CN201420536391 U CN 201420536391U CN 204177119 U CN204177119 U CN 204177119U
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- control
- circuit
- refrigerator
- freezer
- control chip
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Abstract
The utility model proposes a kind of control device of refrigerator-freezer, comprising: temperature sensing circuit, temperature sensing circuit is for detecting the temperature in refrigerator-freezer; Key control circuit, key control circuit is for receiving the instruction of user's input; Display module circuit, display module circuit is used for showing according to the control instruction of control chip; Control relay circuit, control relay circuit is used for carrying out work according to the control instruction of control chip; Control chip, control chip is connected with control relay circuit with described temperature sensing circuit, key control circuit, display module circuit, the instruction sending controling instruction of the temperature that control chip detects according to temperature sensing circuit and user's input.The utility model also proposed a kind of refrigerator-freezer.Have according to the control device of refrigerator-freezer of the present utility model that function is many, cost is low, the simple advantage of structure.
Description
Technical field
The utility model 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.
Utility model content
The utility model is intended at least one of solve the problems of the technologies described above.
For this reason, an object of the present utility model 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 utility model is to propose a kind of refrigerator-freezer.
To achieve these goals, first aspect of the present utility model 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 refrigerator-freezer of the present utility model, 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, following additional technical characteristic can also be had according to the control device of the above-mentioned refrigerator-freezer of the utility model:
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.
Second aspect of the present utility model discloses a kind of refrigerator-freezer, comprises control device described above.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 utility model 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 utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model 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 the utility model embodiment; And
Fig. 2 is the circuit diagram of the control device of refrigerator-freezer according to the utility model embodiment.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, 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 utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, 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 utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, 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 the concrete meaning of above-mentioned term in the utility model can be understood.
With reference to description below and accompanying drawing, by these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some particular implementation in embodiment of the present utility model, represent some modes of the principle implementing embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model 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 utility model embodiment and the refrigerator-freezer with it.
Fig. 1 is the structured flowchart of the control device of refrigerator-freezer according to the utility model embodiment.As shown in Figure 1, according to the control device of the refrigerator-freezer of the utility model embodiment, 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 utility model embodiment, 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 utility model embodiment 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 an embodiment of the present utility model, 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 12VDC@200mA 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 utility model embodiment 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 utility model embodiment, 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 utility model 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 utility model embodiment 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 utility model or example.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 described embodiment of the present utility model, 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 utility model and aim, scope of the present utility model 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536391.4U CN204177119U (en) | 2014-09-17 | 2014-09-17 | The control device of refrigerator-freezer and there is its refrigerator-freezer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536391.4U CN204177119U (en) | 2014-09-17 | 2014-09-17 | The control device of refrigerator-freezer and there is its refrigerator-freezer |
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| Publication Number | Publication Date |
|---|---|
| CN204177119U true CN204177119U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420536391.4U Expired - Fee Related CN204177119U (en) | 2014-09-17 | 2014-09-17 | The control device of refrigerator-freezer and there is its refrigerator-freezer |
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| CN (1) | CN204177119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236247A (en) * | 2014-09-17 | 2014-12-24 | 合肥美的电冰箱有限公司 | Control device of freezer and freezer comprising control device |
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2014
- 2014-09-17 CN CN201420536391.4U patent/CN204177119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236247A (en) * | 2014-09-17 | 2014-12-24 | 合肥美的电冰箱有限公司 | Control device of freezer and freezer comprising control device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20200917 |