CN109539465B - Preheating control method and device for compressor, storage medium and air conditioner - Google Patents
Preheating control method and device for compressor, storage medium and air conditioner Download PDFInfo
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- CN109539465B CN109539465B CN201811360722.2A CN201811360722A CN109539465B CN 109539465 B CN109539465 B CN 109539465B CN 201811360722 A CN201811360722 A CN 201811360722A CN 109539465 B CN109539465 B CN 109539465B
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- 238000000034 method Methods 0.000 title claims abstract description 140
- 239000010725 compressor oil Substances 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims description 71
- 239000003921 oil Substances 0.000 claims description 55
- 238000005485 electric heating Methods 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a preheating control method and device of a compressor, a storage medium and an air conditioner, wherein the method comprises the following steps: acquiring outdoor environment temperature and compressor oil temperature when a unit to which the compressor belongs is electrified; determining whether the compressor needs to be preheated according to the outdoor environment temperature and the compressor oil temperature; and if the compressor needs preheating, preheating the compressor. The scheme of the invention can solve the problem that the unit is not recoverable to damage if the unit is started after the compressor needs to be preheated, and achieves the effect of not easily damaging the unit.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a preheating control method and device for a compressor, a storage medium and an air conditioner, in particular to a preheating protection control method and device for the compressor, the storage medium and the air conditioner.
Background
The compressor of the air conditioning system has a plurality of problems when the compressor is started under the low-temperature working condition. The viscosity of lubricating oil in the compressor is increased in a low-temperature environment, which may cause the situation that the motor is damaged due to the failure of starting; the lubricating oil effect in the compressor is poor under the low-temperature environment, and the situation that a large amount of liquid refrigerant is accumulated possibly exists, and the compressor is subjected to unrecoverable abrasion during starting.
At present, a plurality of air conditioner manufacturers can explain on a specification or a machine body mark that a unit needs to be electrified and preheated for a period of time under the low-temperature working condition so as to ensure the normal starting and running of the unit, but do not take corresponding protective measures. The user also ignores these problems easily, and then causes the damage to the unit, influences unit life.
Disclosure of Invention
The invention aims to provide a preheating control method and device of a compressor, a storage medium and an air conditioner aiming at the defects, so as to solve the problems that a unit needs to be electrified and preheated for a period of time under the condition of low temperature working condition in the prior art, and the unit is damaged easily because the unit is started to cause unrecoverable damage to the unit if the compressor needs to be preheated, and the unit is not damaged easily.
The invention provides a preheating control method of a compressor, which comprises the following steps: acquiring outdoor environment temperature and compressor oil temperature when a unit to which the compressor belongs is electrified; determining whether the compressor needs to be preheated according to the outdoor environment temperature and the compressor oil temperature; and if the compressor needs preheating, preheating the compressor.
Optionally, determining whether the compressor needs to be warmed up according to the outdoor environment temperature and the compressor oil temperature includes: determining whether the outdoor ambient temperature is greater than or equal to a set ambient temperature; if the outdoor environment temperature is lower than the set environment temperature, further determining whether the compressor oil temperature is greater than or equal to the set oil temperature; if the oil temperature of the compressor is less than the set oil temperature, determining that the compressor needs to be preheated; wherein, the compressor oil temperature includes: the shell temperature of the compressor or the discharge temperature of the compressor.
Optionally, the compressor is subjected to a preheating treatment, including: controlling an electric heating relay of the unit to be started so as to control an electric heating module of the unit to be powered on to preheat the compressor; and in the process of preheating the compressor by the electric heating module, controlling the unit not to execute the on-off operation based on an on-off signal sent by any sending end of a wire controller, a remote controller and a client.
Optionally, the preheating treatment is performed on the compressor, and the method further includes: displaying the preheating state of the compressor for preheating treatment; wherein, the preheating state of preheating treatment to the compressor is displayed, including: and controlling a display board of the unit to display a set preheating mark.
Optionally, the method further comprises: determining whether an intervention signal sent by a set interruption preheating key and used for interrupting any sending end of the preheating processing is received; if the intervention signal is received, exiting the preheating treatment; wherein the interrupting a preheat key comprises: the preheating key is interrupted in any one of the setting key or the setting combination key.
Optionally, the method further comprises: if the intervention signal is not received, determining whether the accumulated time of preheating treatment on the compressor is greater than the set time; and if the accumulated time is greater than the set time, exiting the preheating treatment.
In accordance with the above method, another aspect of the present invention provides a preheating control apparatus for a compressor, comprising: the obtaining unit is used for obtaining the outdoor environment temperature and the compressor oil temperature when the unit to which the compressor belongs is electrified; the control unit is used for determining whether the compressor needs to be preheated according to the outdoor environment temperature and the compressor oil temperature; the control unit is also used for preheating the compressor if the compressor needs preheating.
Optionally, the determining, by the control unit, whether the compressor needs to be warmed up according to the outdoor ambient temperature and the compressor oil temperature includes: determining whether the outdoor ambient temperature is greater than or equal to a set ambient temperature; if the outdoor environment temperature is lower than the set environment temperature, further determining whether the compressor oil temperature is greater than or equal to the set oil temperature; if the oil temperature of the compressor is less than the set oil temperature, determining that the compressor needs to be preheated; wherein, the compressor oil temperature includes: the shell temperature of the compressor or the discharge temperature of the compressor.
Optionally, the control unit performs a preheating process on the compressor, including: controlling an electric heating relay of the unit to be started so as to control an electric heating module of the unit to be powered on to preheat the compressor; and in the process of preheating the compressor by the electric heating module, controlling the unit not to execute the on-off operation based on an on-off signal sent by any sending end of a wire controller, a remote controller and a client.
Optionally, the control unit performs a preheating process on the compressor, and further includes: displaying the preheating state of the compressor for preheating treatment; wherein, the control unit displays the preheating state of the preheating treatment of the compressor, and comprises: and controlling a display board of the unit to display a set preheating mark.
Optionally, the method further comprises: the control unit is also used for determining whether an intervention signal which is sent by a set interruption preheating key and used for interrupting any sending end of the preheating processing is received; the control unit is further used for quitting the preheating processing if the intervention signal is received; wherein the interrupting a preheat key comprises: the preheating key is interrupted in any one of the setting key or the setting combination key.
Optionally, the method further comprises: the control unit is further used for determining whether the accumulated time of preheating treatment on the compressor is greater than the set time or not if the intervention signal is not received; and the control unit is also used for exiting the preheating treatment if the accumulated time is greater than the set time.
In accordance with another aspect of the present invention, there is provided an air conditioner including: the preheating control device of the compressor.
In accordance with the above method, a further aspect of the present invention provides a storage medium comprising: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the preheating control method of the compressor by the processor.
In accordance with the above method, another aspect of the present invention provides an air conditioner, comprising: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored in the memory, and loaded by the processor and execute the preheating control method of the compressor.
According to the scheme provided by the invention, the control of preheating protection of the compressor is added before starting the compressor, so that the unrecoverable damage to the unit caused by starting the unit when the compressor needs to be preheated can be avoided, the unit is protected, and the reliability is good.
Furthermore, according to the scheme of the invention, whether the preheating is needed or not is directly judged through the oil temperature, the control logic is simple and reliable, and when the unit is started in a low-temperature environment, the good preheating of the compressor can be effectively ensured, and the reliable operation and the service life of the unit are ensured.
Further, the scheme of the invention can intuitively inform the client that the compressor needs to be preheated by reminding the client on the display panel when the compressor needs to be preheated, and has good humanization.
Furthermore, according to the scheme of the invention, the judgment of the preheating protection of the compressor is added before the air conditioner is started, so that the damage of the compressor caused by the fact that a user starts the air conditioner unknowingly is prevented, and the unit and the running reliability of the unit are protected.
Further, according to the scheme of the invention, the preheating requirement of the compressor is intuitively informed to a client through a method of displaying the preheating identification through the display panel when the compressor needs to be preheated, and the reminding mode is simple, convenient and reliable.
Therefore, according to the scheme of the invention, whether preheating is needed or not is judged through the oil temperature before starting up, so that the control on the preheating protection of the compressor is realized, the problems that the unit needs to be electrified and preheated for a period of time under the condition of low temperature working condition in the prior art, and the unit is easily damaged due to unrecoverable damage to the unit caused by starting the unit if the compressor needs to be preheated, are solved, so that the defects that the unit is easily damaged and the service life of the unit and the user experience are influenced in the prior art are overcome, the unit is not easily damaged, and the beneficial effects of prolonging the service life of the unit and improving the user experience are realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic flow chart illustrating an embodiment of a preheating control method for a compressor according to the present invention;
FIG. 2 is a schematic flow chart illustrating one embodiment of the method of the present invention for determining whether the compressor needs to be warmed based on the outdoor ambient temperature and the compressor oil temperature;
FIG. 3 is a schematic flow chart illustrating one embodiment of interrupting the warm-up of the compressor after exiting the warm-up process in the method of the present invention;
FIG. 4 is a schematic flow chart illustrating one embodiment of timing the exit of the preheating process for the compressor in the method of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of a preheating control device of a compressor according to the present invention;
FIG. 6 is a control flow diagram of an embodiment of an air conditioner of the present invention;
fig. 7 is a schematic diagram illustrating a preheating judgment process according to an embodiment of the air conditioner of the present invention, and particularly, a supplementary flowchart to the preheating judgment method in fig. 1;
fig. 8 is a control flow diagram of another embodiment of the air conditioner of the present invention.
The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:
102-an obtaining unit; 104-control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The prior document with patent (application) No. 201510221986.5 discloses: in the aspect of whether preheating is needed, firstly, judgment is made according to whether the power is firstly turned on and whether the shutdown time is long enough, if the preheating is needed, the preheating is started, and then whether the preheating is ended is judged according to the temperature condition. When the air conditioner is in actual operation, more than all, whether the oil temperature needs to be judged to be too low to be preheated is needed, if the oil temperature needs to be preheated under the high-temperature refrigeration operation working condition, the preheating is not needed, even if the compressor is stopped for a long time, the oil temperature is still high, the preheating is not needed, the pre-applied patent is that whether the preheating is needed is judged through the oil temperature, and the air conditioner is more reliable.
Prior documents with patent (application) No. 201710554875.X disclose: the starting of the electric auxiliary heater is judged by introducing a plurality of conditions such as outdoor environment temperature, whether to be electrified for the first time, whether to be electrified for the second time or a plurality of times, shutdown interval time and the like in the judging process, but the key parameter of oil temperature is not involved, the control logic is complex, although the oil temperature (shell temperature) after the shutdown is carried out is also judged, the difference value of the oil temperature and the environment temperature is adopted, although the oil temperature is difficult to rise under the low-temperature working condition, the oil temperature is strongly related to the viscosity of lubricating oil, and the relationship with the temperature difference is not large. For example: when the ambient temperature is low (-20 ℃ or lower), although the temperature difference between the oil temperature and the ambient temperature may be relatively high, the oil temperature may still be at a relatively low temperature, and the viscosity of the lubricating oil is still high, which is not suitable for starting.
According to an embodiment of the present invention, a preheating control method for a compressor is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The preheating control method of the compressor may include: step S110 to step S130.
In step S110, an outdoor ambient temperature and a compressor oil temperature when the unit to which the compressor belongs is powered on are obtained.
At step S120, it is determined whether the compressor needs to be warmed up according to the outdoor ambient temperature and the compressor oil temperature.
For example: when the unit is powered on, the unit can automatically judge whether the compressor needs to be preheated according to parameters such as outdoor environment temperature, compressor shell temperature, exhaust temperature and the like.
Optionally, with reference to a flowchart of an embodiment of determining whether the compressor needs to be warmed up according to the outdoor environment temperature and the compressor oil temperature in the method of the present invention shown in fig. 2, a specific process of determining whether the compressor needs to be warmed up according to the outdoor environment temperature and the compressor oil temperature in step S120 may include: step S210 to step S230.
Step S210, determining whether the outdoor ambient temperature is greater than or equal to a set ambient temperature.
Step S220, if the outdoor ambient temperature is less than the set ambient temperature, further determining whether the compressor oil temperature is greater than or equal to a set oil temperature. In a specific use process, if the outdoor environment temperature is greater than or equal to the set environment temperature, it is determined that the compressor does not need to be preheated.
For example: and monitoring parameters such as outdoor environment temperature, compressor shell temperature and the like in real time. When the outdoor ambient temperature is higher than T1, no preheating is required.
Step S230, if the compressor oil temperature is less than the set oil temperature, determining that the compressor needs to be preheated. In a specific use process, if the oil temperature of the compressor is greater than or equal to the set oil temperature, the compressor is determined not to need to be preheated.
For example: when the outdoor environment temperature is lower than T1, it is necessary to monitor whether the compressor shell temperature is less than T2, and if the compressor shell temperature is greater than or equal to T2, preheating is not necessary; if the compressor shell temperature is less than T2, preheating is required.
Therefore, the compressor is determined to be preheated only when the outdoor environment temperature is lower than the set environment temperature and the oil temperature of the compressor is lower than the set oil temperature, so that the judgment accuracy of whether the compressor is preheated is better; and the oil temperature of the compressor needs to be judged under the condition that the outdoor environment temperature is lower than the set environment temperature, so that the judgment program is saved, and the treatment process is simpler and more reliable.
Wherein, the compressor oil temperature may include: the shell temperature of the compressor or the discharge temperature of the compressor.
For example: when the preheating is needed, relevant parameters such as exhaust temperature and the like which can reflect the real oil temperature of the compressor can be adopted to replace the shell temperature.
Therefore, whether the compressor needs to be preheated or not is judged by combining the outdoor environment temperature based on the oil temperature of the compressor in various forms, and the judgment is good in accuracy and high in reliability.
In step S130, if the compressor needs to be preheated, preheating the compressor, so as to control the unit to start or stand by after preheating the compressor. In a specific use process, if the compressor does not need to be preheated, the unit is directly controlled to start or stand by. For example: if the compressor is judged not to need preheating, the compressor directly enters standby mode and can normally execute starting operation.
For example: the control method for preheating protection of the compressor is added before starting, so that the condition that the unit is at low temperature can be avoided, and when the compressor needs to be preheated, a customer can start the unit to cause unrecoverable damage to the unit as soon as the customer is powered on. Therefore, the judgment of preheating protection of the compressor is added before the air conditioner is started, and the damage of the compressor caused by starting under the condition that a user is unaware is prevented.
For example: the temperature of the oil (such as the temperature of the shell, the temperature of exhaust gas and the like) is used for directly judging whether the oil needs to be preheated or not by adopting the same method no matter the oil is electrified for starting or is stopped later or is started after power failure, and the control logic is simple and reliable. Therefore, when the unit is started in a low-temperature environment, the compressor can be effectively well preheated, and the reliable operation and the service life of the unit are ensured.
Therefore, the compressor is preheated under the condition that the compressor needs to be preheated according to the outdoor environment temperature and the compressor oil temperature when the unit is powered on, the damage of the compressor caused by the fact that a user starts the unit unknowingly can be prevented, the protection reliability of the unit is improved, and the reliability and the safety of the unit operation are also guaranteed.
Optionally, the preheating the compressor in step S130 may include: and controlling the process of the electric heating module to obtain electric heating.
Specifically, the process of controlling the electric heating module to be electrically heated may include: and controlling an electric heating relay of the unit to be opened so as to control an electric heating module of the unit to be powered on to preheat the compressor.
For example: if the compressor needs to be preheated, the electric heating relay is started, and the electric heating is powered on to work.
And in the process of preheating the compressor by the electric heating module, controlling the unit not to execute the on-off operation based on an on-off signal sent by any sending end of a wire controller, a remote controller and a client.
Therefore, the preheating treatment of the compressor is realized by controlling the electric heating module to obtain electric heating, and the preheating mode is simple and convenient and has high reliability.
Further optionally, the preheating the compressor in step S130 may further include: the process of displaying the warm-up flag is controlled.
Specifically, the controlling the process of displaying the warm-up flag may include: and displaying the preheating state of the compressor for preheating treatment.
The displaying the preheating state of the preheating treatment performed by the compressor may include: and controlling a display board of the unit to display a set preheating mark.
For example: can be when needs preheat, remind the customer on the display panel, effectively avoid the condition that the user is unknown under the start-up damage compressor, unable direct start-up to for the customer provides the scheme of understanding and removing preheating control. Therefore, if the compressor needs to be preheated in the low-temperature environment, the compressor is intuitively informed to the client through the method of displaying the preheating identification through the display panel. Such as: if the compressor needs to be preheated, the display panel displays a preheating mark, such as YR.
For example: and if the compressor needs to be preheated, the method for displaying the preheating identification through the display panel intuitively informs a client that the compressor needs to be preheated.
Therefore, the preheating state is identified, so that the user can check the preheating state conveniently, and the humanization is better.
In an alternative embodiment, the method may further include: and interrupting and exiting the process of preheating the compressor.
The following further describes, with reference to a schematic flow chart of an embodiment of interrupting the exit of the preheating process of the compressor in the method of the present invention shown in fig. 3, a specific process of interrupting the exit of the preheating process of the compressor, which may include: step S310 and step S320.
Step S310, during the process of preheating the compressor, determining whether an intervention signal which is sent by a set interruption preheating key and can be used for interrupting any sending end of the preheating process is received.
And step S320, if the intervention signal is received, exiting the preheating process to enter a set standby state, and releasing the display of the preheating state of the preheating process on the compressor.
For example: when the mark (such as the preheating mark) is displayed, a client can not carry out startup operation through a startup and shutdown key through a control device such as a wire controller or a remote controller, but if the client needs to be forcibly started, the preheating is interrupted in a specific key or combination key mode, if the client does not forcibly start, the parameters such as outdoor environment temperature, compressor shell temperature, exhaust temperature and the like are continuously detected in real time, and once the client judges that the preheating is not needed, the client exits from the preheating stage and enters a normal standby state.
Therefore, the preheating can be interrupted according to the intervention signal of the user in the preheating process, the user can conveniently adjust the state of the unit based on temporary needs, and the use convenience and flexibility can be improved.
For example: the user can manually interrupt the preheating through input equipment such as a remote controller, a manual operator and the like, and the humanized design of the unit is reflected.
Wherein the interrupting of the preheat key may include: the preheating key is interrupted in any one of the setting key or the setting combination key.
Therefore, the preheating key can be interrupted in various forms, so that the use by different users can be facilitated, and the humanization and the safety are better.
In an alternative embodiment, the method may further include: and exiting the preheating treatment process of the compressor at regular time.
The following further describes a specific process of the timer quitting the preheating treatment of the compressor with reference to a flowchart of an embodiment of the timer quitting the preheating treatment of the compressor in the method of the present invention shown in fig. 4, which may include: step S410 and step S420.
And step S410, if the intervention signal is not received, determining whether the accumulated time of the preheating treatment on the compressor is more than the set time.
And step S420, if the accumulated time is greater than the set time, exiting the preheating process to enter a set standby state, and releasing the display of the preheating state of the preheating process on the compressor.
For example: the electric heating relay is started, the timer starts timing when the electric heating relay is powered on to work, the preheating identification can be removed only when the accumulated time of the timer meets the set time length T, and the unit can enter a normal standby state. This control method is relatively simple. As shown in fig. 8.
Therefore, the preheating process is monitored at regular time under the condition that the intervention signal is not received, and the preheating process is automatically withdrawn at the time of the regular time, so that the automatic supervision on the preheating process can be promoted, and the intelligent degree and the reliability are greatly improved.
Through a large number of tests, the technical scheme of the embodiment is adopted, and the control of preheating protection of the compressor is added before starting, so that the unrecoverable damage to the unit caused by starting the unit as soon as the compressor is powered on when the compressor needs to be preheated can be avoided, the unit is protected, and the reliability is good.
According to an embodiment of the present invention, there is also provided a warm-up control apparatus of a compressor corresponding to the warm-up control method of the compressor. Referring to fig. 5, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The preheating control apparatus of a compressor may include: an acquisition unit 102 and a control unit 104.
In an alternative example, the obtaining unit 102 may be configured to obtain an outdoor ambient temperature and a compressor oil temperature when the unit to which the compressor belongs is powered on. The specific functions and processes of the acquiring unit 102 are referred to in step S110.
In an alternative example, the control unit 104 may be configured to determine whether the compressor needs to be warmed up according to the outdoor ambient temperature and the compressor oil temperature. The specific function and processing of the control unit 104 are referred to in step S120.
For example: when the unit is powered on, the unit can automatically judge whether the compressor needs to be preheated according to parameters such as outdoor environment temperature, compressor shell temperature, exhaust temperature and the like.
Alternatively, the determining, by the control unit 104, whether the compressor needs to be warmed up according to the outdoor ambient temperature and the compressor oil temperature may include:
the control unit 104 may be further configured to determine whether the outdoor ambient temperature is greater than or equal to a set ambient temperature. The specific functions and processes of the control unit 104 are also referred to in step S210.
The control unit 104 may be further configured to determine whether the compressor oil temperature is greater than or equal to a set oil temperature if the outdoor ambient temperature is less than the set ambient temperature. In a specific use process, if the outdoor environment temperature is greater than or equal to the set environment temperature, it is determined that the compressor does not need to be preheated. The specific functions and processes of the control unit 104 are also referred to in step S220.
For example: and monitoring parameters such as outdoor environment temperature, compressor shell temperature and the like in real time. When the outdoor ambient temperature is higher than T1, no preheating is required.
The control unit 104 may be further specifically configured to determine that the compressor needs to be preheated if the compressor oil temperature is less than the set oil temperature. In a specific use process, if the oil temperature of the compressor is greater than or equal to the set oil temperature, the compressor is determined not to need to be preheated. The specific function and processing of the control unit 104 are also referred to in step S230.
For example: when the outdoor environment temperature is lower than T1, it is necessary to monitor whether the compressor shell temperature is less than T2, and if the compressor shell temperature is greater than or equal to T2, preheating is not necessary; if the compressor shell temperature is less than T2, preheating is required.
Therefore, the compressor is determined to be preheated only when the outdoor environment temperature is lower than the set environment temperature and the oil temperature of the compressor is lower than the set oil temperature, so that the judgment accuracy of whether the compressor is preheated is better; and the oil temperature of the compressor needs to be judged under the condition that the outdoor environment temperature is lower than the set environment temperature, so that the judgment program is saved, and the treatment process is simpler and more reliable.
Wherein, the compressor oil temperature may include: the shell temperature of the compressor or the discharge temperature of the compressor.
For example: when the preheating is needed, relevant parameters such as exhaust temperature and the like which can reflect the real oil temperature of the compressor can be adopted to replace the shell temperature.
Therefore, whether the compressor needs to be preheated or not is judged by combining the outdoor environment temperature based on the oil temperature of the compressor in various forms, and the judgment is good in accuracy and high in reliability.
In an optional example, the control unit 104 may be further configured to perform a preheating process on the compressor if the compressor needs to be preheated, so as to control the unit to start or standby after the preheating process is performed on the compressor. In a specific use process, if the compressor does not need to be preheated, the unit is directly controlled to start or stand by. The specific function and processing of the control unit 104 are also referred to in step S130. For example: if the compressor is judged not to need preheating, the compressor directly enters standby mode and can normally execute starting operation.
For example: the control method for preheating protection of the compressor is added before starting, so that the condition that the unit is at low temperature can be avoided, and when the compressor needs to be preheated, a customer can start the unit to cause unrecoverable damage to the unit as soon as the customer is powered on. Therefore, the judgment of preheating protection of the compressor is added before the air conditioner is started, and the damage of the compressor caused by starting under the condition that a user is unaware is prevented.
For example: the temperature of the oil (such as the temperature of the shell, the temperature of exhaust gas and the like) is used for directly judging whether the oil needs to be preheated or not by adopting the same method no matter the oil is electrified for starting or is stopped later or is started after power failure, and the control logic is simple and reliable. Therefore, when the unit is started in a low-temperature environment, the compressor can be effectively well preheated, and the reliable operation and the service life of the unit are ensured.
Therefore, the compressor is preheated under the condition that the compressor needs to be preheated according to the outdoor environment temperature and the compressor oil temperature when the unit is powered on, the damage of the compressor caused by the fact that a user starts the unit unknowingly can be prevented, the protection reliability of the unit is improved, and the reliability and the safety of the unit operation are also guaranteed.
Optionally, the preheating of the compressor by the control unit 104 may include: the process of controlling the electric heating module to obtain electric heating can be specifically as follows:
the control unit 104 may be further configured to control an electrical heating relay of the unit to be turned on, so as to control an electrical heating module of the unit to be powered to preheat the compressor.
For example: if the compressor needs to be preheated, the electric heating relay is started, and the electric heating is powered on to work.
The control unit 104 may be further configured to, in a process that the electric heating module is powered on to preheat the compressor, control the unit not to execute a power on/off operation based on a power on/off signal sent by any one of a line controller, a remote controller, and a client.
Therefore, the preheating treatment of the compressor is realized by controlling the electric heating module to obtain electric heating, and the preheating mode is simple and convenient and has high reliability.
Further optionally, the control unit 104 performs a preheating process on the compressor, and may further include: the process of displaying the preheating mark may specifically be as follows:
the control unit 104 may be further configured to specifically display a preheating state of the preheating process performed on the compressor.
The displaying, by the control unit 104, a preheating state of the preheating process performed by the compressor may include: the control unit 104 may be further configured to control a display panel of the unit to display a set preheating flag.
For example: can be when needs preheat, remind the customer on the display panel, effectively avoid the condition that the user is unknown under the start-up damage compressor, unable direct start-up to for the customer provides the scheme of understanding and removing preheating control. Therefore, if the compressor needs to be preheated in the low-temperature environment, the compressor is intuitively informed to the client through the method of displaying the preheating identification through the display panel. Such as: if the compressor needs to be preheated, the display panel displays a preheating mark, such as YR.
For example: and if the compressor needs to be preheated, the method for displaying the preheating identification through the display panel intuitively informs a client that the compressor needs to be preheated.
Therefore, the preheating state is identified, so that the user can check the preheating state conveniently, and the humanization is better.
In an alternative embodiment, the method may further include: the process of interrupting and exiting the preheating treatment of the compressor may specifically be as follows:
the control unit 104 may be further configured to determine, during the preheating process on the compressor, whether an intervention signal sent by a set interruption preheating key, which may be used to interrupt any sending end of the preheating process, is received. The specific functions and processes of the control unit 104 are also referred to in step S310.
The control unit 104 may be further configured to exit the preheating process to enter a set standby state and cancel the display of the preheating state in which the preheating process is performed on the compressor, if the intervention signal is received. The specific functions and processes of the control unit 104 are also referred to in step S320.
For example: when the mark (such as the preheating mark) is displayed, a client can not carry out startup operation through a startup and shutdown key through a control device such as a wire controller or a remote controller, but if the client needs to be forcibly started, the preheating is interrupted in a specific key or combination key mode, if the client does not forcibly start, the parameters such as outdoor environment temperature, compressor shell temperature, exhaust temperature and the like are continuously detected in real time, and once the client judges that the preheating is not needed, the client exits from the preheating stage and enters a normal standby state.
Therefore, the preheating can be interrupted according to the intervention signal of the user in the preheating process, the user can conveniently adjust the state of the unit based on temporary needs, and the use convenience and flexibility can be improved.
For example: the user can manually interrupt the preheating through input equipment such as a remote controller, a manual operator and the like, and the humanized design of the unit is reflected.
Wherein the interrupting of the preheat key may include: the preheating key is interrupted in any one of the setting key or the setting combination key.
Therefore, the preheating key can be interrupted in various forms, so that the use by different users can be facilitated, and the humanization and the safety are better.
In an alternative embodiment, the method may further include: the process of performing the preheating treatment on the compressor is periodically exited, which may specifically be as follows:
the control unit 104 may be further configured to determine whether an accumulated time for performing the preheating process on the compressor is greater than a set time if the intervention signal is not received. The specific functions and processes of the control unit 104 are also referred to in step S410.
The control unit 104 may be further configured to exit the preheating process to enter a set standby state and release the display of the preheating state in which the preheating process is performed on the compressor if the accumulated time is greater than the set time. The specific function and processing of the control unit 104 are also referred to in step S420.
For example: the electric heating relay is started, the timer starts timing when the electric heating relay is powered on to work, the preheating identification can be removed only when the accumulated time of the timer meets the set time length T, and the unit can enter a normal standby state. This control method is relatively simple. As shown in fig. 8.
Therefore, the preheating process is monitored at regular time under the condition that the intervention signal is not received, and the preheating process is automatically withdrawn at the time of the regular time, so that the automatic supervision on the preheating process can be promoted, and the intelligent degree and the reliability are greatly improved.
Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method shown in fig. 1 to 4, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.
Through a large number of tests, the technical scheme of the invention is adopted, whether the compressor needs to be preheated or not is directly judged through the oil temperature, the control logic is simple and reliable, and when the unit is started in a low-temperature environment, the compressor can be effectively ensured to be well preheated, and the reliable operation and the service life of the unit are ensured.
According to an embodiment of the present invention, there is also provided an air conditioner corresponding to a preheating control apparatus of a compressor. The air conditioner may include: the preheating control device of the compressor.
In an optional embodiment, the scheme of the invention is that a control method for preheating protection of the compressor is added before starting the air conditioner on the basis of the traditional air conditioner, so that the condition that the unit is in a low-temperature working condition can be avoided, and when the compressor needs to be preheated, a customer starts the unit to cause unrecoverable damage to the unit as soon as the customer powers on the unit.
In the scheme of the invention, the oil temperature (such as shell temperature, exhaust temperature and the like) is used for directly judging whether the preheating is needed or not by adopting the same method no matter the power is firstly electrified and started or is stopped or is started after power is cut off, and the control logic is simple and reliable. Therefore, when the unit is started in a low-temperature environment, the compressor can be effectively well preheated, and the reliable operation and the service life of the unit are ensured.
Optionally, the scheme of the invention can remind the client on the display panel when the preheating is needed, effectively avoid the situation that the compressor is damaged by starting up under the condition that the user does not know, the compressor cannot be started up directly, and provide the scheme for knowing the preheating control for the client. Therefore, if the compressor needs to be preheated in the low-temperature environment, the compressor is intuitively informed to the client through the method of displaying the preheating identification through the display panel.
In an optional example, the scheme of the invention provides a control method for judging whether the compressor needs to be preheated, and the judgment of preheating protection of the compressor is added before the air conditioner is started, so that the damage of the compressor caused by starting under the condition that a user does not know the condition is prevented.
Alternatively, if the compressor needs to be warmed up, the client is intuitively informed that the compressor needs to be warmed up through a method of displaying a warming-up mark on a display panel.
Optionally, the user can manually interrupt the preheating through input equipment such as a remote controller and a manual operator, and the humanized design of the unit is reflected.
In an alternative embodiment, reference may be made to the examples shown in fig. 6 to 8 to illustrate a specific implementation process of the scheme of the present invention.
In an alternative embodiment, the judging scheme of the compressor warm-up protection may include:
and step 11, for the unit with the control method, when the unit is powered on, the unit can automatically judge whether the compressor needs to be preheated according to parameters such as outdoor environment temperature, compressor shell temperature, exhaust temperature and the like.
And step 12, if the compressor is judged not to need preheating, directly entering standby and normally executing startup operation.
And step 13, if the compressor needs to be preheated, the electric heating relay is started, and the electric heating is powered on to work.
Alternatively, if it is judged that the compressor needs to be warmed up, the display panel displays a warm-up flag, such as YR or the like.
Optionally, when the identifier (e.g., the preheating identifier) is displayed, the client cannot perform the startup operation through the startup and shutdown key by using a control device such as a wire controller or a remote controller, but if the client needs to forcibly start up, the preheating needs to be interrupted in a specific key or combination key manner, if the client does not forcibly start up, the client continues to detect parameters such as the outdoor environment temperature, the compressor shell temperature, the exhaust temperature and the like in real time, and once the client determines that the preheating is not needed, the client exits the preheating stage and enters the normal standby state. As shown in fig. 6.
Wherein, whether the compressor needs to be preheated or not can be judged according to the following scheme:
and step 21, monitoring parameters such as outdoor environment temperature, compressor shell temperature and the like in real time.
When the outdoor ambient temperature is higher than T1, no preheating is required, step 22.
Step 23, when the outdoor environment temperature is lower than T1, it is required to monitor whether the compressor shell temperature is less than T2, and if the compressor shell temperature is greater than or equal to T2, preheating is not required; if the compressor shell temperature is less than T2, preheating is required.
The compressor shell temperature bulb is required to be arranged at a position capable of reflecting the oil temperature of the compressor. As shown in fig. 7.
The protection control method is universally introduced, so that the damage to the compressor caused by the fact that a user directly starts the compressor after the unit is electrified after the unit is powered off for a long time and stands at a low-temperature working condition can be effectively avoided, and the service life and the reliability of the unit are effectively prolonged.
In an alternative specific example, in the specific implementation, the preheating identifier may be removed only when the timer starts to count while the electric heating relay is turned on and the electric heating is powered on, and the unit may enter the normal standby state only when the preheating identifier is removed until the accumulated time of the timer meets the set time period T. This control method is relatively simple. As shown in fig. 8.
When the preheating is needed, relevant parameters such as exhaust temperature and the like which can reflect the real oil temperature of the compressor can be adopted to replace the shell temperature.
Since the processing and functions of the air conditioner of this embodiment are basically corresponding to the embodiments, principles and examples of the apparatus shown in fig. 5, the description of this embodiment is not given in detail, and reference may be made to the related descriptions in the embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention can intuitively inform the client that the compressor needs to be preheated by reminding the client on the display panel when the compressor needs to be preheated, and has good humanization.
According to an embodiment of the present invention, there is also provided a storage medium corresponding to a warm-up control method of a compressor. The storage medium may include: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the preheating control method of the compressor by the processor.
Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the methods shown in fig. 1 to fig. 4, details are not described in the description of this embodiment, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention is adopted, and the judgment of the preheating protection of the compressor is added before the air conditioner is started, so that the damage of the compressor caused by the fact that a user starts the air conditioner unknowingly is prevented, and the unit and the running reliability of the unit are protected.
According to an embodiment of the present invention, there is also provided an air conditioner corresponding to a preheating control method of a compressor. The air conditioner may include: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored in the memory, and loaded by the processor and execute the preheating control method of the compressor.
Since the processing and functions of the air conditioner of this embodiment are basically corresponding to the embodiments, principles and examples of the methods shown in fig. 1 to 4, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention is adopted, and the client is intuitively informed that the compressor needs to be preheated by the method of displaying the preheating identification through the display panel when the compressor needs to be preheated, so that the reminding mode is simple, convenient and reliable.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (13)
1. A warm-up control method of a compressor, comprising:
acquiring outdoor environment temperature and compressor oil temperature when a unit to which the compressor belongs is electrified;
determining whether the compressor needs to be warmed up according to the outdoor environment temperature and the compressor oil temperature, including: determining whether the outdoor ambient temperature is greater than or equal to a set ambient temperature; if the outdoor environment temperature is lower than the set environment temperature, further determining whether the compressor oil temperature is greater than or equal to the set oil temperature; if the oil temperature of the compressor is less than the set oil temperature, determining that the compressor needs to be preheated; wherein, the compressor oil temperature includes: a shell temperature of the compressor or a discharge temperature of the compressor;
if the compressor needs preheating, preheating the compressor; before starting up, whether preheating is needed or not is judged according to the oil temperature, and preheating protection control of the compressor is achieved;
further comprising: determining whether an intervention signal sent by a set interruption preheating key and used for interrupting any sending end of the preheating processing is received; if the intervention signal is received, exiting the preheating treatment; the preheating can be interrupted according to the intervention signal of the user in the preheating treatment process, so that the user can conveniently adjust the state of the unit based on temporary needs.
2. The method of claim 1, wherein pre-heating the compressor comprises:
controlling an electric heating relay of the unit to be started so as to control an electric heating module of the unit to be powered on to preheat the compressor;
wherein the content of the first and second substances,
and in the process of preheating the compressor by the electric heating module, controlling the unit not to execute the on-off operation based on an on-off signal sent by any sending end of a wire controller, a remote controller and a client.
3. The method of claim 2, wherein the compressor is pre-heated, further comprising:
displaying the preheating state of the compressor for preheating treatment;
wherein the content of the first and second substances,
the method for displaying the preheating state of the compressor in the preheating treatment comprises the following steps:
and controlling a display board of the unit to display a set preheating mark.
4. The method according to one of claims 1 to 3, wherein,
the interrupt preheat key comprising: the preheating key is interrupted in any one of the setting key or the setting combination key.
5. The method of claim 4, further comprising:
if the intervention signal is not received, determining whether the accumulated time of preheating treatment on the compressor is greater than the set time;
and if the accumulated time is greater than the set time, exiting the preheating treatment.
6. A warm-up control apparatus of a compressor, comprising:
the obtaining unit is used for obtaining the outdoor environment temperature and the compressor oil temperature when the unit to which the compressor belongs is electrified;
a control unit for determining whether the compressor needs to be warmed up according to the outdoor ambient temperature and the compressor oil temperature, comprising: determining whether the outdoor ambient temperature is greater than or equal to a set ambient temperature; if the outdoor environment temperature is lower than the set environment temperature, further determining whether the compressor oil temperature is greater than or equal to the set oil temperature; if the oil temperature of the compressor is less than the set oil temperature, determining that the compressor needs to be preheated; wherein, the compressor oil temperature includes: a shell temperature of the compressor or a discharge temperature of the compressor;
the control unit is also used for preheating the compressor if the compressor needs preheating; before starting up, whether preheating is needed or not is judged according to the oil temperature, and preheating protection control of the compressor is achieved;
further comprising: the control unit is also used for determining whether an intervention signal which is sent by a set interruption preheating key and used for interrupting any sending end of the preheating processing is received; the control unit is further used for quitting the preheating processing if the intervention signal is received; the preheating can be interrupted according to the intervention signal of the user in the preheating treatment process, so that the user can conveniently adjust the state of the unit based on temporary needs.
7. The apparatus of claim 6, wherein the control unit preheats the compressor, comprising:
controlling an electric heating relay of the unit to be started so as to control an electric heating module of the unit to be powered on to preheat the compressor;
wherein the content of the first and second substances,
and in the process of preheating the compressor by the electric heating module, controlling the unit not to execute the on-off operation based on an on-off signal sent by any sending end of a wire controller, a remote controller and a client.
8. The apparatus of claim 7, wherein the control unit preheats the compressor, further comprising:
displaying the preheating state of the compressor for preheating treatment;
wherein the content of the first and second substances,
the control unit displays the preheating state of the preheating treatment of the compressor, and comprises:
and controlling a display board of the unit to display a set preheating mark.
9. The apparatus according to one of claims 6 to 8, wherein,
the interrupt preheat key comprising: the preheating key is interrupted in any one of the setting key or the setting combination key.
10. The apparatus of claim 9, further comprising:
the control unit is further used for determining whether the accumulated time of preheating treatment on the compressor is greater than the set time or not if the intervention signal is not received;
and the control unit is also used for exiting the preheating treatment if the accumulated time is greater than the set time.
11. An air conditioner, comprising: a warm-up control apparatus of a compressor as claimed in any one of claims 6 to 10.
12. A storage medium having a plurality of instructions stored therein; the plurality of instructions for being loaded by a processor and executing the warm-up control method of a compressor according to any one of claims 1 to 5.
13. An air conditioner, comprising:
a processor for executing a plurality of instructions;
a memory to store a plurality of instructions;
wherein the plurality of instructions are stored by the memory, and loaded and executed by the processor to perform the warm-up control method of the compressor according to any one of claims 1 to 5.
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| CN110243062A (en) * | 2019-06-24 | 2019-09-17 | 广东志高暖通设备股份有限公司 | The heating means and air-conditioning press of air-conditioning press |
| CN112033045B (en) * | 2020-08-17 | 2021-07-20 | 珠海格力电器股份有限公司 | Control method and device of heating equipment and controller |
| CN113091275B (en) * | 2021-04-08 | 2022-09-06 | 青岛海尔空调器有限总公司 | Preheating method, device and system for air conditioner compressor |
| CN113218034A (en) * | 2021-05-08 | 2021-08-06 | 珠海格力电器股份有限公司 | Compressor preheating control method and device and air conditioning equipment |
| CN113531820B (en) * | 2021-06-22 | 2023-03-17 | 青岛海尔空调器有限总公司 | Method for preheating compressor of air conditioner, air conditioner and air conditioning system |
| CN113531819B (en) * | 2021-06-22 | 2022-09-02 | 青岛海尔空调器有限总公司 | Method and device for preheating air conditioner, air conditioner and air conditioning system |
| CN114353262B (en) * | 2021-12-21 | 2023-08-15 | 青岛海尔空调电子有限公司 | Control method and device for liquid impact fault of air conditioner compressor and air conditioner |
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| JPH06288657A (en) * | 1993-04-06 | 1994-10-18 | Hitachi Ltd | Air conditioner |
| JPH08193759A (en) * | 1995-01-17 | 1996-07-30 | Matsushita Electric Ind Co Ltd | Control device for freezer with freezer oil non-compatible with refrigerant |
| CN1265148C (en) * | 2002-03-08 | 2006-07-19 | 乐金电子(天津)电器有限公司 | Air conditioner compressor preheating control method |
| CN105262385B (en) * | 2015-11-13 | 2018-02-16 | 四川长虹电器股份有限公司 | A kind of machine winding preheating control method |
| CN105509245B (en) * | 2015-12-23 | 2018-08-03 | 珠海格力电器股份有限公司 | Air conditioning system and standby control method and device for air conditioning outdoor unit of air conditioning system |
| CN108374777A (en) * | 2018-01-22 | 2018-08-07 | 珠海格力电器股份有限公司 | Preheating control method and device for compressor, storage medium and equipment |
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