CN109915989B - Refrigerant heat dissipation frequency converter starting method and device and air conditioner with same - Google Patents
Refrigerant heat dissipation frequency converter starting method and device and air conditioner with same Download PDFInfo
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- CN109915989B CN109915989B CN201910121350.6A CN201910121350A CN109915989B CN 109915989 B CN109915989 B CN 109915989B CN 201910121350 A CN201910121350 A CN 201910121350A CN 109915989 B CN109915989 B CN 109915989B
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Abstract
The invention discloses a starting method and a starting device of a frequency converter with refrigerant heat dissipation and the frequency converter with the same, wherein the frequency converter comprises a refrigerant regulating valve body connected with an electronic expansion valve in parallel, and the method comprises the following steps: detecting the current starting state of the frequency converter; if the current starting state is a quick starting state, adjusting the opening degree of the refrigerant adjusting valve body to a preset opening degree while starting and initializing the electronic expansion valve; and after the electronic expansion valve finishes the starting initialization, closing the refrigerant regulating valve body. According to the method, in the process of quick start of the frequency converter and initialization of the electronic expansion valve, the refrigerant is timely adjusted through the refrigerant adjusting valve body, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick start is effectively improved, the use comfort of a user is improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of frequency converters and air conditioners, in particular to a method and a device for starting a frequency converter by cooling medium heat dissipation and an air conditioner with the same.
Background
In the related art, in order to meet the requirements of heat dissipation and condensation prevention of components in the frequency converter, an electronic expansion valve is generally added in the frequency converter, and the electronic expansion valve is adjusted and controlled through a Proportional Integral (PI) so as to more accurately control a refrigerant.
However, when the electronic expansion valve is opened, a relatively long initialization process exists, once the frequency converter is quickly started after a fault occurs, if the frequency converter is quickly started after being powered on after abnormal power failure, since the time of the initialization process is relatively long, condensation or excessive temperature rise of components can be easily caused, the requirement of quick start of the frequency converter cannot be met, and the reliability of quick start of the frequency converter is relatively poor, so that the user experience is reduced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the first purpose of the invention is to provide a method for starting a refrigerant-cooled frequency converter, which can effectively avoid component condensation or excessive temperature rise, effectively improve the reliability of quick start, improve the use comfort of users, and improve the user experience.
The second objective of the present invention is to provide a starting apparatus for a frequency converter with refrigerant heat dissipation.
A third object of the present invention is to provide an air conditioner.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of the present invention provides a method for starting a frequency converter with refrigerant heat dissipation, where the frequency converter includes a refrigerant regulating valve body connected in parallel with an electronic expansion valve, and the method includes the following steps: detecting the current starting state of the frequency converter; if the current starting state is a quick starting state, adjusting the opening degree of the refrigerant adjusting valve body to a preset opening degree while the electronic expansion valve is started and initialized; and after the electronic expansion valve finishes the starting initialization, closing the refrigerant regulating valve body.
According to the method for starting the frequency converter with the refrigerant heat dissipation function, the refrigerant is timely adjusted through the refrigerant adjusting valve body in the process of quick starting of the frequency converter and initialization of the electronic expansion valve, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick starting is effectively improved, the use comfort of users is improved, and the user experience is improved.
In addition, the method for starting the frequency converter by cooling medium heat dissipation according to the above embodiment of the present invention may further have the following additional technical features:
further, in an embodiment of the present invention, the method further includes: and if the current starting state does not meet the quick starting condition, closing the refrigerant regulating valve body and starting the electronic expansion valve.
Further, in an embodiment of the present invention, the preset opening degree is obtained according to a current opening degree of the electronic expansion valve at a last power-off time.
Further, in an embodiment of the present invention, the method, at the time of starting initialization of the electronic expansion valve, includes: and adjusting the opening degree of the electronic expansion valve to the maximum opening degree.
Further, in an embodiment of the present invention, the method further includes: detecting the starting time of the electronic expansion valve; and when the starting time meets the preset time length, judging that the electronic expansion valve finishes starting initialization.
In order to achieve the above object, a second aspect of the present invention provides a starting apparatus for a refrigerant heat dissipation inverter, where the inverter includes a refrigerant regulating valve body connected in parallel with an electronic expansion valve, and the apparatus includes: the first detection module is used for detecting the current starting state of the frequency converter; the adjusting module is used for adjusting the opening of the refrigerant adjusting valve body to a preset opening when the electronic expansion valve is started and initialized when the current starting state is a quick starting state; and the control module is used for closing the refrigerant regulating valve body after the electronic expansion valve finishes starting initialization.
According to the frequency converter starting device with the refrigerant heat dissipation function, disclosed by the embodiment of the invention, the refrigerant is timely adjusted through the refrigerant adjusting valve body in the process of quick starting of the frequency converter and initialization of the electronic expansion valve, so that condensation or overlarge temperature rise of components is effectively avoided, the reliability of quick starting is effectively improved, the use comfort of a user is improved, and the user experience is improved.
In addition, the inverter starting device for cooling refrigerant according to the above embodiment of the present invention may further have the following additional technical features:
further, in an embodiment of the present invention, the control module is further configured to close the refrigerant regulating valve body and start the electronic expansion valve when the current starting state does not satisfy the quick starting condition.
Further, in an embodiment of the present invention, the preset opening degree is obtained according to a current opening degree of the electronic expansion valve at a last power-off time.
Further, in an embodiment of the present invention, the adjusting module is further configured to adjust the opening degree of the electronic expansion valve to a maximum opening degree when the electronic expansion valve is initialized during startup.
Further, in an embodiment of the present invention, the method further includes: the second detection module is used for detecting the starting time of the electronic expansion valve; and the judging module is used for judging that the electronic expansion valve finishes starting initialization when the starting time meets the preset time length.
In order to achieve the above object, a third embodiment of the present invention provides an air conditioner, including the inverter starting device with refrigerant heat dissipation of the above embodiment. According to the air conditioner provided by the embodiment of the invention, in the process of quick start of the frequency converter and initialization of the electronic expansion valve, the refrigerant is timely adjusted through the refrigerant adjusting valve body, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick start is effectively improved, the use comfort of a user is improved, and the user experience is improved.
In order to achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium, including the method for starting a frequency converter with refrigerant heat dissipation of the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a method for starting a frequency converter with refrigerant heat dissipation according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating initialization of a normally-started electronic expansion valve according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating an initialization process for a fast start electronic expansion valve according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for starting a frequency converter with refrigerant cooling according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an internal heat sink and a refrigerant channel system of a frequency converter according to an embodiment of the present invention;
fig. 6 is a block diagram illustrating an exemplary embodiment of a starting apparatus of a frequency converter with refrigerant cooling according to the present disclosure;
fig. 7 is a block diagram of an inverter starting device for cooling medium according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Before introducing the method and the device for starting the inverter for cooling refrigerant and the air conditioner with the same, firstly, the inverter for cooling refrigerant in the related art is briefly introduced.
At present, along with the expansion of air conditioner use place to continuously promote air conditioner self function requirement, especially use the air conditioner at some special circumstances, for example, use the air conditioner in places such as large-scale data processing center, it is quick, accurate to the cooling requirement of environment, and after the air conditioner shut down because of the circumstances such as unusual outage, require the air conditioner can the quick start, otherwise because of the untimely ambient temperature that leads to of air conditioner refrigeration risees, and then lead to the data center to appear paralysed condition.
In the related technology, the electronic expansion valve is added to adjust the flow of the frequency converter with the refrigerant heat dissipation for meeting the heat dissipation of the components and preventing the condensation of the components, so that the frequency converter cannot be shut down or the components are burnt out due to the overhigh temperature of the components when in operation, and the short circuit of the components due to the condensation caused by the overlow temperature of the components cannot occur.
Particularly, for the control of the electronic expansion valve in the frequency converter, the aim of accurate control can be achieved during normal operation. Once the frequency converter is powered on again after abnormal power failure, in order to prevent step loss of adjustment, the electronic expansion valve generally needs to perform an adjustment process of reset initialization, however, the adjustment process is limited by the adjustment speed limit of the electronic expansion valve itself, the initialization process often needs to be stabilized after a long period of time, and due to the overlong time of the initialization process, when the frequency converter is started quickly, the conditions of component condensation or large temperature rise caused by improper adjustment of the electronic expansion valve easily occur.
In order to solve the above problems, embodiments of the present invention provide a method and an apparatus for starting a frequency converter with refrigerant heat dissipation, and an air conditioner with the same.
The method and the device for starting the inverter for cooling the refrigerant and the air conditioner with the same according to the embodiment of the invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for starting an inverter by cooling medium heat dissipation according to an embodiment of the present invention.
As shown in fig. 1, the method for starting the frequency converter with refrigerant heat dissipation includes the following steps:
in step S101, the current start-up state of the inverter is detected.
It can be understood that the current start state may include a fast start state and a non-fast start state, and in the embodiment of the present invention, the current start state of the frequency converter needs to be detected first, so as to further control the frequency converter to perform the next action according to the current start state.
It should be noted that before detecting the current start state of the frequency converter, after the frequency converter is powered on and started, the embodiment of the present invention may first determine whether the frequency converter is restarted due to a fault, for example, the frequency converter is started after being powered on after an abnormal power failure, if the frequency converter is restarted after the fault, it needs to be further determined whether the frequency converter needs to be restarted quickly, if the frequency converter needs to be started quickly after the fault, the current start state of the frequency converter is a quick start state, and if the frequency converter does not need to be started quickly after the fault, the current start state of the frequency converter is a non-quick start state. Of course, after the frequency converter is powered on for the first time, whether the frequency converter needs to be started quickly or not can be selected, so that the current starting state can be flexibly selected according to actual use requirements, and the starting flexibility is improved.
For example, when the previous start-up state is a non-rapid start-up state, that is, when the previous start-up state is the non-rapid start-up state, the electronic expansion valve is normally started to perform initialization.
For example, as shown in fig. 2, the initialization of the electronic expansion valve for normal start-up includes: after the frequency converter is powered on, the refrigerant regulating valve body is closed, the electronic expansion valve is started, then the electronic expansion valve is initialized, and the electronic expansion valve is correspondingly regulated after the initialization is finished, for example, the opening degree of the electronic expansion valve is controlled through PI.
In step S102, if the current start state is a fast start state, the opening of the refrigerant regulating valve body is adjusted to a preset opening while the electronic expansion valve is initialized.
It can be understood that, in the embodiment of the invention, when the electronic expansion valve is started and initialized, the opening degree of the valve body is adjusted to a certain value by adjusting the refrigerant, so that the quick and effective cooling during the quick starting of the frequency converter can be effectively ensured, the reliability of components of the frequency converter can be ensured, and the components can be effectively prevented from being condensed or excessively heated particularly when the frequency converter is started quickly after a fault occurs.
In an embodiment of the present invention, the preset opening degree may be obtained according to a current opening degree of the electronic expansion valve at a last power-off time.
Specifically, in the embodiment of the invention, the opening degree of the electronic expansion valve at the last power-off time is read while the refrigerant regulating valve body is opened, and the value is taken as the preset opening degree. Of course, the preset opening degree may also be set according to actual use requirements, and is only used as an example and is not particularly limited.
Further, in an embodiment of the present invention, the method includes, at the time of starting initialization of the electronic expansion valve: and adjusting the opening degree of the electronic expansion valve to the maximum opening degree.
After the frequency converter is electrified again, the electronic expansion valve is firstly closed to 0 step, and then the valve body is fully opened, namely the opening degree of the electronic expansion valve is changed to the maximum opening degree. It can be understood that, by adjusting the opening degree of the electronic expansion valve to the maximum opening degree, the initialization speed of the electronic expansion valve can be effectively increased, and the initialization time can be shortened. Of course, the opening degree of the electronic expansion valve may also be adjusted according to actual conditions, for example, the opening degree of the electronic expansion valve is adjusted to be half of the maximum opening degree, so that the specific opening degree is flexibly set according to the actual conditions, and the flexibility of adjusting the opening degree is improved.
In step S103, after the electronic expansion valve completes the start-up initialization, the refrigerant regulating valve is closed.
It can be understood that, after the electronic expansion valve completes the start-up initialization, the embodiment of the present invention further adjusts the electronic expansion valve through the PI control. In one embodiment of the invention, the starting time of the electronic expansion valve is detected; and when the starting time meets the preset time length, judging that the electronic expansion valve finishes starting initialization.
The preset duration may be set by a person skilled in the art according to an actual situation, for example, the preset duration may be 5min, which is not specifically limited herein, so that when the start time meets the preset duration, it may be determined that the electronic expansion valve completes start initialization.
The fast start initialization of the electronic expansion valve will be further described with reference to fig. 3.
Firstly, after a frequency converter is electrified, opening a refrigerant regulating valve body, reading the opening degree of an electronic expansion valve at the last electrifying moment, and taking the value as a preset opening degree; adjusting the opening degree of the valve body to a preset opening degree by a refrigerant while starting initialization of the electronic expansion valve, adjusting the opening degree of the electronic expansion valve to a maximum opening degree, and detecting starting time of the electronic expansion valve; and when the starting time meets the preset time length, closing the refrigerant regulating valve body, judging that the electronic expansion valve completes starting initialization, and after the starting initialization, regulating the electronic expansion valve through PI control.
In practical application, as shown in fig. 4, the method for starting the frequency converter by cooling the refrigerant will be further described with reference to fig. 4, and the method includes the following steps:
firstly, after the frequency converter is electrified, whether the frequency converter is restarted due to faults is determined, and after the frequency converter is restarted due to faults, whether the frequency converter needs to be quickly started is further determined.
Secondly, when the frequency converter does not need to be started quickly, the refrigerant regulating valve body is closed, the electronic expansion valve is started, then the electronic expansion valve is initialized, and the electronic expansion valve is correspondingly regulated after the initialization is finished.
And finally, when the frequency converter needs to be quickly started, adjusting the opening degree of the refrigerant adjusting valve body to a preset opening degree while the electronic expansion valve is started to be quickly initialized, wherein the electronic expansion valve is started to be quickly initialized to adjust the opening degree of the electronic expansion valve to the maximum opening degree, detecting the starting time of the electronic expansion valve, closing the refrigerant adjusting valve body when the starting time meets the preset time, simultaneously judging that the electronic expansion valve finishes the starting initialization, and correspondingly adjusting the electronic expansion valve after the initialization is finished.
In addition, an example of an inverter internal heat sink and a refrigerant channel system designed according to the inverter starting method for refrigerant heat dissipation according to the embodiment of the present invention is shown in fig. 5, where the refrigerant regulating valve body may be an electromagnetic valve, and of course, may also be other types of valve bodies, and is not limited specifically herein. In the embodiment of the present invention, the electronic expansion valve and the refrigerant regulating valve body are respectively two, for example, the electronic expansion valve may include a first electronic expansion valve and a second electronic expansion valve, and the refrigerant regulating valve body includes a first refrigerant regulating valve body and a second refrigerant regulating valve body.
Specifically, on the inversion side, the inversion module radiator 1 is connected in series with the first electronic expansion valve 7, and the first refrigerant regulating valve body 6 is connected in parallel with the first electronic expansion valve 7. On the rectification side, the rectification module radiator 2 is connected in series with the second electronic expansion valve 9, and the second refrigerant regulating valve body 8 is connected in parallel with the second electronic expansion valve 9. In addition, a circuit composed of the throttle device 5, the fan 4, and the cooling and dehumidifying radiator 3 is connected in parallel to the inverter side and the rectifier side. The electronic expansion valve is mainly controlled by a general PI program when in normal operation, and the refrigerant regulating valve body is normally closed for a long time and only acts when triggering quick start.
According to the method for starting the frequency converter for cooling the refrigerant, provided by the embodiment of the invention, the refrigerant is timely adjusted through the refrigerant adjusting valve body in the process of quick starting of the frequency converter and initialization of the electronic expansion valve, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick starting is effectively improved, the use comfort of a user is improved, and the user experience is improved.
Next, a starting apparatus of a frequency converter for cooling a refrigerant according to an embodiment of the present invention is described with reference to the drawings.
Fig. 6 is a block diagram of a starting device of a frequency converter with refrigerant heat dissipation according to an embodiment of the present invention.
As shown in fig. 6, the inverter starting device 100 for cooling the refrigerant includes a refrigerant regulating valve body connected in parallel with an electronic expansion valve, wherein the device 100 includes: a first detection module 110, a conditioning module 120, and a control module 130.
The first detecting module 110 is configured to detect a current starting state of the frequency converter. The adjusting module 120 is configured to adjust the opening of the valve body to a preset opening by using a refrigerant when the electronic expansion valve is initialized when the current starting state is the quick starting state. The control module 130 is configured to close the refrigerant regulating valve after the electronic expansion valve completes the start initialization. The device 100 of the embodiment of the invention can effectively avoid component condensation or excessive temperature rise, effectively improve the reliability of quick start, improve the use comfort of users and improve the user experience.
Further, in an embodiment of the present invention, the preset opening degree is obtained according to a current opening degree of the electronic expansion valve at a last power-off time.
Further, in an embodiment of the present invention, the adjusting module 120 is further configured to adjust the opening degree of the electronic expansion valve to a maximum opening degree at the time of starting initialization of the electronic expansion valve.
Further, in an embodiment of the present invention, as shown in fig. 7, the apparatus 100 of the embodiment of the present invention further includes: a second detection module 140. The second detection module 140 is configured to detect a start time of the electronic expansion valve; and the judging module is used for judging that the electronic expansion valve finishes starting initialization when the starting time meets the preset time length.
It should be noted that the explanation of the embodiment of the inverter starting method for dissipating heat from a refrigerant is also applicable to the inverter starting apparatus for dissipating heat from a refrigerant in the embodiment, and is not repeated herein.
According to the frequency converter starting device for cooling the refrigerant, provided by the embodiment of the invention, the refrigerant is timely adjusted through the refrigerant adjusting valve body in the process of quick starting of the frequency converter and initialization of the electronic expansion valve, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick starting is effectively improved, the use comfort of a user is improved, and the user experience is improved.
In addition, the embodiment of the invention also provides an air conditioner, which comprises the frequency converter starting device for cooling the refrigerant. According to the air conditioner provided by the embodiment of the invention, in the process of quick start of the frequency converter and initialization of the electronic expansion valve, the refrigerant is timely adjusted through the refrigerant adjusting valve body, so that condensation or over-high temperature rise of components is effectively avoided, the reliability of quick start is effectively improved, the use comfort of a user is improved, and the user experience is improved.
In particular, according to an embodiment of the present invention, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, an embodiment of the present invention includes a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method for starting an inverter for cooling refrigerant heat dissipation shown in fig. 1.
It should be noted that the computer readable medium of the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to: acquiring at least two internet protocol addresses; sending a node evaluation request comprising at least two internet protocol addresses to node evaluation equipment, wherein the node evaluation equipment selects the internet protocol addresses from the at least two internet protocol addresses and returns the internet protocol addresses; receiving an internet protocol address returned by the node evaluation equipment; wherein the obtained internet protocol address indicates an edge node in the content distribution network.
Alternatively, the computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to: receiving a node evaluation request comprising at least two internet protocol addresses; selecting an internet protocol address from at least two internet protocol addresses; returning the selected internet protocol address; wherein the received internet protocol address indicates an edge node in the content distribution network.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A starting method of a refrigerant heat-radiating frequency converter is characterized in that the frequency converter comprises a refrigerant regulating valve body connected with an electronic expansion valve in parallel, wherein the method comprises the following steps:
detecting the current starting state of the frequency converter;
judging whether the frequency converter needs to be restarted quickly or not;
if the current starting state is a quick starting state, adjusting the opening degree of the refrigerant adjusting valve body to a preset opening degree while the electronic expansion valve is started and initialized; and
after the electronic expansion valve finishes the starting initialization, closing the refrigerant regulating valve body;
if the current starting state does not meet the quick starting condition, closing the refrigerant regulating valve body and starting the electronic expansion valve;
the preset opening degree is obtained according to the current opening degree of the electronic expansion valve at the last power-off moment;
detecting the starting time of the electronic expansion valve;
and when the starting time meets the preset time length, judging that the electronic expansion valve finishes starting initialization.
2. The method of claim 1, wherein upon initiation of start-up of the electronic expansion valve, comprising: and adjusting the opening degree of the electronic expansion valve to the maximum opening degree.
3. The utility model provides a radiating converter starting drive of refrigerant, its characterized in that, the converter includes the refrigerant adjusting valve body with electronic expansion valve connects in parallel, wherein, the device includes:
the first detection module is used for detecting the current starting state of the frequency converter;
judging whether the frequency converter needs to be restarted quickly or not;
the adjusting module is used for adjusting the opening of the refrigerant adjusting valve body to a preset opening when the electronic expansion valve is started and initialized when the current starting state is a quick starting state; and
the control module is used for closing the refrigerant regulating valve body after the electronic expansion valve finishes the starting initialization,
the control module is also used for closing the refrigerant regulating valve body and starting the electronic expansion valve when the current starting state does not meet the quick starting condition;
the preset opening degree is obtained according to the current opening degree of the electronic expansion valve at the last power-off moment;
the second detection module is used for detecting the starting time of the electronic expansion valve;
and the judging module is used for judging that the electronic expansion valve finishes starting initialization when the starting time meets the preset time length.
4. The starting device of a frequency converter with refrigerant cooling according to claim 3, wherein the adjusting module is further configured to adjust the opening degree of the electronic expansion valve to a maximum opening degree when the electronic expansion valve is initialized.
5. An air conditioner, comprising: the starting device of the frequency converter for cooling refrigerant according to any one of claims 3 to 4.
6. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-2.
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| CN102654338A (en) * | 2012-05-09 | 2012-09-05 | 海尔集团公司 | Control method of electronic expansion valve in air conditioner |
| CN205690555U (en) * | 2016-05-27 | 2016-11-16 | 珠海格力电器股份有限公司 | A kind of air-conditioning device with module heat exchanger components |
| CN108180682A (en) * | 2017-12-28 | 2018-06-19 | Tcl空调器(中山)有限公司 | Control method for electronic expansion valve, air-conditioner set and computer readable storage medium |
| CN108518807A (en) * | 2018-05-24 | 2018-09-11 | 广东美的制冷设备有限公司 | Control method, control device, refrigeration equipment and computer readable storage medium |
| CN108775721A (en) * | 2018-07-27 | 2018-11-09 | 珠海格力电器股份有限公司 | Cooling system and its control method |
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