CN1987688A - Drive control device and its method for electronic expansion valve - Google Patents
Drive control device and its method for electronic expansion valve Download PDFInfo
- Publication number
- CN1987688A CN1987688A CN 200510131118 CN200510131118A CN1987688A CN 1987688 A CN1987688 A CN 1987688A CN 200510131118 CN200510131118 CN 200510131118 CN 200510131118 A CN200510131118 A CN 200510131118A CN 1987688 A CN1987688 A CN 1987688A
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- expansion valve
- electric expansion
- temperature
- display module
- module
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Abstract
The invention discloses general control device for driving electronic expansion valve (EEV), and method for resetting extent of opening based on temperature difference setup. Using the device and method can detect data of temperature difference corresponding to actual extent of opening of an EEV, and can reset extent of opening of EEV through controlling temperature difference between two thermocouples. The general control device includes following modules: drive module of connecting and controlling EEV to be tested; a real time display module for amount of step, and a display module for inputted amount of step are connected to the drive module; temperature sensors T1, T2 connected to two thermocouples, and temperature display modules for T1, T2; real time temperature display module and display module for inputted setting temperature of (T1-T2) temperature difference connected to temperature sensors T1, T2; input key set module, and switch module for selecting modes.
Description
Technical field
The present invention is a kind of driving control device that is used for the electric expansion valve of air conditioner, and utilizes this device to reset the method for electronic expansion valve opening by temperature test.
Background technology
Existing air conditioner generally adopts pump type heat circulation system pipeline, and the electric expansion valve that is provided with between compressor and indoor, outdoor heat converter plays the throttling control action.The size of the bore by electric expansion valve can realize regulating the flow of refrigerant in the pipeline.Promptly regulate the size of electronic expansion valve opening, to realize throttling control to refrigerant.
Existing electronic expansion valve drive can only directly drive the aperture of the swollen valve that really expands of the electronics of a certain particular type by original setting value, thereby its scope of application is less, versatility is relatively poor.In addition, because existing drive unit does not have design temperature to detect and Presentation Function, thereby also just can't be by setting the aperture that the temperature difference is come the automatic control and adjustment electric expansion valve.
Summary of the invention
The driving control device of electric expansion valve of the present invention and method thereof, its purpose are to solve above-mentioned existing issue and a kind of control device that electric expansion valve drives versatility that improves are provided, and utilize the method that the temperature difference is regulated its aperture automatically of setting.Use this apparatus and method, can detect two measuring point temperature datas that are associated with the actual aperture of a certain electric expansion valve, it regulates the aperture of electric expansion valve automatically by the temperature difference of two thermopairs, the variation of aperture can make the temperature difference change again, so electric expansion valve will be regulated aperture automatically, make the actual temperature difference reach predefined temperature difference desired value.
For achieving the above object, the primary structure of the driving control device of described electric expansion valve is:
One connects and controls the driver module of tested electric expansion valve;
Be connected a real-time step number display module and an input step number display module with described electric expansion valve driver module;
The temperature sensor T1, the T2 that are connected with two thermopairs, and T1 and T2 temperature display module;
Real time temperature display module of (T1-T2) temperature difference that is connected with described temperature sensor T1, T2 and design temperature input display module;
And input key-press module and mode selector switch module.
Described mode selector switch module, realize two kinds of operational modes of setting electronic expansion valve opening, promptly by the target step number of control electric expansion valve or by setting the temperature difference (T1-T2) between two thermopairs, automatically regulate the aperture of electric expansion valve, and the control electronic expansion valve opening makes the measuring point temperature difference reach the goal-setting value.
The method of using the driving control device of above-mentioned electric expansion valve is, two thermopairs are connected described temperature sensor respectively, and then temperature T 1, T2 and the temperature difference (T1-T2) of two thermopairs are by showing by the temperature display module respectively;
Drive the electric expansion valve that is attached thereto by the electric expansion valve driver module, then the actual step number of electric expansion valve operation shows by real-time step number display module;
The temperature difference that obtains according to above-mentioned actual test and the real-time step number of electric expansion valve, the pass-through mode selector switch is selected the controlled variable that resets electronic expansion valve opening, promptly resets the opening value of electric expansion valve by the target step number of setting the temperature difference (T1-T2) or button input electric expansion valve.
For the electric expansion valve of the drive controlling that powers on first, can not determine the current valve opening of expansion valve, then should be with the electric expansion valve complete shut-down, promptly setting its opening value is zero, tests as stated above then and resets.
For the driving control device that guarantees described electric expansion valve normally uses, when placing two thermopairs, should be placed on T1 place, high temperature position by the thermopair that temperature is high, the thermopair that temperature is low is placed on T2 place, low temperature position.
In sum, the advantage of the method for testing of described this driving and control device is to be applicable to that the swollen aperture that really expands valve of polytype electronics shows and setting to have stronger versatility; Realize a kind of temperature difference of two thermopairs of test and real time execution step number of electric expansion valve passed through, controlled the effective ways of the opening value of electric expansion valve automatically.
Description of drawings
Fig. 1 is the driving control device system architecture synoptic diagram of described electric expansion valve.
Embodiment
Embodiment 1, as shown in Figure 1, and the external stabilized power source of the driving control device of described electric expansion valve, the driver module that it has a connection and controls tested electric expansion valve.
Described electric expansion valve driver module connects a real-time step number display module and an input step number display module.
Real-time step number display module, the real-time step number in the time of electric expansion valve can being moved shows.
Input step number display module can be in order to control the opening value of electric expansion valve by the operation step number.
Temperature sensor T1, the T2 of external two thermopairs connect T1 and T2 temperature display module and (T1-T2) the real time temperature display module of the temperature difference respectively.
Design temperature input display module can be regulated the opening value of electric expansion valve automatically in order to by the desired value of input (T1-T2) temperature approach as electronic expansion valve controls.
Mode selector switch module, realize two kinds of operational modes of setting electronic expansion valve opening, promptly set the aperture of electric expansion valve by the input target step number, or the next automatic in good time control electric expansion valve of the desired value of input (T1-T2) temperature difference, make the measuring point temperature difference finally reach desired value.
The drive controlling method of described electric expansion valve is, two thermopairs are connected two temperature sensors respectively, and then temperature T 1, T2 and the temperature difference (T1-T2) of two thermopairs are by showing by the temperature display module respectively;
Wherein, the thermopair that temperature is high is placed on T1 place, high temperature position, and the thermopair that temperature is low is placed on T2 place, low temperature position.
Drive the electric expansion valve that is attached thereto by the electric expansion valve driver module, then the actual step number of electric expansion valve operation shows by real-time step number display module;
The temperature difference that obtains according to above-mentioned actual test and the real-time step number of electric expansion valve, the pass-through mode selector switch is selected the controlled variable that resets electronic expansion valve opening, promptly resets the opening value of electric expansion valve by the target step number of setting the temperature difference (T1-T2) or button input electric expansion valve.
But the pass-through mode selector switch is selected corresponding operational mode,
Operational mode one, by the target step number of button input electric expansion valve, then to be worth with this be that target is carried out work to electric expansion valve, and correspondingly carry out the relevant demonstration of the demonstration of real-time step number and temperature T 1, T2, (T1-T2) temperature difference numerical value.
Operational mode two, come the design temperature input value by button input (T1-T2) temperature difference, then to be worth with this be that target is carried out work to electric expansion valve, and correspondingly carry out real-time T1, T2, the demonstration of the real-time step number of the demonstration of (T1-T2) temperature difference real time temperature and electric expansion valve.
For the electric expansion valve of the drive controlling that powers on first, can not determine the current valve opening of expansion valve, then should be with the electric expansion valve complete shut-down, promptly setting its opening value is zero, tests as stated above then and resets.
Claims (4)
1, a kind of driving control device of electric expansion valve is characterized in that: described driving control device has a connection and controls the driver module of tested electric expansion valve;
Be connected a real-time step number display module and an input step number display module with described electric expansion valve driver module;
The temperature sensor T1, the T2 that are connected with two thermopairs, and T1 and T2 temperature display module;
Real time temperature display module of (T1-T2) temperature difference that is connected with described temperature sensor T1, T2 and design temperature input display module;
And input key-press module and mode selector switch module.
2, a kind of drive controlling method of electric expansion valve is characterized in that: two thermopairs are connected described temperature sensor respectively, and then temperature T 1, T2 and the temperature difference (T1-T2) of two thermopairs are by showing by the temperature display module respectively;
Drive the electric expansion valve that is attached thereto by the electric expansion valve driver module, then the actual step number of electric expansion valve operation shows by real-time step number display module;
The temperature difference that obtains according to above-mentioned actual test and the real-time step number of electric expansion valve, the pass-through mode selector switch is selected the controlled variable that resets electronic expansion valve opening, promptly resets the opening value of electric expansion valve by the target step number of setting the temperature difference (T1-T2) or button input electric expansion valve.
3, the drive controlling method of electric expansion valve according to claim 2, it is characterized in that: for the electric expansion valve of the drive controlling that powers on first, can not determine the current valve opening of expansion valve, then with the electric expansion valve complete shut-down, promptly setting its opening value is zero, tests as stated above then and resets.
4, the drive controlling method of electric expansion valve according to claim 3 is characterized in that: when placing two thermopairs, should be placed on T1 place, high temperature position by the thermopair that temperature is high, the thermopair that temperature is low is placed on T2 place, low temperature position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131118 CN1987688A (en) | 2005-12-22 | 2005-12-22 | Drive control device and its method for electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131118 CN1987688A (en) | 2005-12-22 | 2005-12-22 | Drive control device and its method for electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987688A true CN1987688A (en) | 2007-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510131118 Pending CN1987688A (en) | 2005-12-22 | 2005-12-22 | Drive control device and its method for electronic expansion valve |
Country Status (1)
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| CN (1) | CN1987688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453698A (en) * | 2012-05-31 | 2013-12-18 | 青岛海信日立空调系统有限公司 | Air conditioner portable electronic expansion valve drive device |
-
2005
- 2005-12-22 CN CN 200510131118 patent/CN1987688A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453698A (en) * | 2012-05-31 | 2013-12-18 | 青岛海信日立空调系统有限公司 | Air conditioner portable electronic expansion valve drive device |
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