CN113280471A - Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner - Google Patents
Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner Download PDFInfo
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- CN113280471A CN113280471A CN202110663406.8A CN202110663406A CN113280471A CN 113280471 A CN113280471 A CN 113280471A CN 202110663406 A CN202110663406 A CN 202110663406A CN 113280471 A CN113280471 A CN 113280471A
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- air conditioner
- dry
- electric heater
- tube temperature
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
- F24F11/62—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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a dry combustion fault judgment method and device for an electric heater of an air conditioner and the air conditioner, wherein the dry combustion fault judgment method for the electric heater of the air conditioner comprises the following steps: a state determination step: determining that the air conditioner is in a target standby state; a tube temperature obtaining step: acquiring the tube temperature Td of an evaporator of the air conditioner at different moments detected by a tube temperature sensor; a change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; determining dry burning faults: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition. The method for judging the dry-burning fault of the electric heater of the air conditioner solves the problem that the dry-burning fault of the electric heater of the air conditioner in the prior art is inconvenient to judge.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a dry burning fault judgment method and device for an electric heater of an air conditioner and the air conditioner.
Background
The electric heater used on the existing air conditioner controls the switch of the electric heater through the relay of the mainboard, and the electric heater enters a working state after the main controller controls the relay to be attracted. Because the main controller only controls the relay to be sucked, the real working state of the electric heater after the relay is sucked cannot be known, and a state detection feedback mechanism is lacked. If the electric heater has dry burning fault, the temperature in the air conditioner is easy to continuously rise, so that the air conditioner is damaged and even fire accidents occur.
However, in the related art, if the actual operation state of the electric heater is desired to be known, additional sensor hardware is required for detecting and adding a feedback circuit (for example, a temperature control sensor, a current transformer, etc. are mounted on the electric heater), which may increase the cost and complicate the control circuit although the operation state of the electric heater can be obtained.
In view of the above problems, no effective solution has been proposed.
The above information disclosed in the background section is only for enhancement of understanding of the background of the technology described herein. The background art may therefore contain certain information that does not form the known prior art to those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a method and a device for judging a dry-burning fault of an electric heater of an air conditioner and the air conditioner, and at least solves the problem that the dry-burning fault of the electric heater of the air conditioner is inconvenient to judge in the prior art.
In order to achieve the above object, according to a first aspect of embodiments of the present invention, there is provided a dry-fire fault determination method of an electric heater of an air conditioner, including: a state determination step: determining that the air conditioner is in a target standby state; a tube temperature obtaining step: acquiring the tube temperature Td of an evaporator of the air conditioner at different moments detected by a tube temperature sensor; a change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; determining dry burning faults: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition.
Further, the state determination step includes: and determining that the standby time of the air conditioner reaches a first preset time.
Further, the dry burning fault determining step comprises the following steps: in case that the tube temperature Td rises, it is determined that the electric heater of the air conditioner has a dry-fire fault.
Further, the tube temperature acquiring step comprises: and acquiring the tube temperature Td of the evaporator of the air conditioner detected by the tube temperature sensor once every second preset time interval.
Further, before the change condition determining step, the dry-fire fault determining method of the air-conditioning electric heater further comprises: acquiring indoor environment temperature Te at a moment corresponding to the tube temperature Td detected by the tube temperature sensor; and determining that the electric heater of the air conditioner has no dry-fire fault under the condition that the difference value between the tube temperature Td and the indoor environment temperature Te meets a second preset condition.
Further, in a case where the difference between the tube temperature Td and the indoor ambient temperature Te meets a second predetermined condition, determining that there is no dry-fire fault in the electric heater of the air conditioner includes: if Td-Te is less than or equal to A, determining that the electric heater of the air conditioner has no dry burning fault; wherein A is a preset value greater than or equal to 0.
Further, the method for judging the dry-burning fault of the electric heater of the air conditioner further comprises the following steps: under the condition that the variation condition of the tube temperature Td does not meet a first preset condition, sequentially and repeatedly executing a tube temperature obtaining step, a variation condition determining step and a dry burning fault determining step; and/or controlling the air conditioner to send out an alarm signal under the condition that the electric heater of the air conditioner is determined to have dry burning fault.
According to a second aspect of the embodiments of the present invention, there is provided a dry-fire fault determination device for an electric heater of an air conditioner, including: a state determination unit for determining that the air conditioner is in a target standby state; a tube temperature acquisition unit for acquiring tube temperatures Td of an evaporator of the air conditioner at different times detected by the tube temperature sensor; the change condition determining unit is used for determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; and the dry-burning fault determining unit is used for determining that the electric heater of the air conditioner has dry-burning faults under the condition that the variation condition of the tube temperature Td meets a first preset condition.
According to a third aspect of the embodiments of the present invention, there is provided a nonvolatile storage medium, the nonvolatile storage medium includes a stored program, wherein, during the program operation, the device in which the nonvolatile storage medium is controlled to execute the above-mentioned dry-burning fault determination method for the electric air conditioner heater.
According to a fourth aspect of the embodiments of the present invention, there is provided a processor, the processor is configured to execute a program, wherein the program executes the above-mentioned dry-fire fault determination method for an electric heater of an air conditioner during running.
According to a fifth aspect of the embodiments of the present invention, there is provided an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the dry-fire failure determination method for an electric heater of the air conditioner when executing the computer program.
The method for judging the dry burning fault of the air conditioner electric heater by applying the technical scheme of the invention comprises the following steps: a state determination step: determining that the air conditioner is in a target standby state; a tube temperature obtaining step: acquiring the tube temperature Td of an evaporator of the air conditioner at different moments detected by a tube temperature sensor; a change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; determining dry burning faults: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition. Thus, when the air conditioner is in a target standby state, the internal fan does not work, and if the electric heater of the air conditioner is in a dry-burning condition, a large part of generated heat is radiated onto the evaporator to cause the temperature change of the evaporator. The working condition of the electric heater can be visually known by acquiring the tube temperature Td of the evaporator of the air conditioner at different moments detected by the tube temperature sensor, and the change condition of the tube temperature Td is determined by combining the first preset condition, so that whether the dry-burning fault exists in the electric heater of the air conditioner can be conveniently and accurately determined on the basis of not adding extra detection elements, and the problem that the dry-burning fault of the electric heater of the air conditioner in the prior art is inconvenient to judge is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic flow chart diagram of an alternative embodiment of a dry-fire fault determination method for an electric heater according to the present invention;
fig. 2 is a schematic view of an alternative embodiment of a dry-fire failure determination device of an electric heater according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
Fig. 1 is a dry-fire fault determining method of an electric heater for an air conditioner according to an embodiment of the present invention, as shown in fig. 1, the method includes the steps of:
step S102, state determination step: determining that the air conditioner is in a target standby state;
step S104, acquiring the tube temperature: acquiring the tube temperature Td of an evaporator of the air conditioner at different moments detected by a tube temperature sensor;
step S106, change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments;
step S108, dry burning fault determination step: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition.
The method for judging the dry-burning fault of the electric heater of the air conditioner by adopting the scheme comprises the following steps: a state determination step: determining that the air conditioner is in a target standby state; a tube temperature obtaining step: acquiring the tube temperature Td of an evaporator of the air conditioner at different moments detected by a tube temperature sensor; a change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; determining dry burning faults: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition. Thus, when the air conditioner is in a target standby state, the internal fan does not work, and if the electric heater of the air conditioner is in a dry-burning condition, a large part of generated heat is radiated onto the evaporator to cause the temperature change of the evaporator. The working condition of the electric heater can be visually known by acquiring the tube temperature Td of the evaporator of the air conditioner at different moments detected by the tube temperature sensor, and the change condition of the tube temperature Td is determined by combining the first preset condition, so that whether the dry-burning fault exists in the electric heater of the air conditioner can be conveniently and accurately determined on the basis of not adding extra detection elements, and the problem that the dry-burning fault of the electric heater of the air conditioner in the prior art is inconvenient to judge is solved.
In this application, so confirm earlier that the air conditioner is in target standby state, consider based on judging accuracy, air conditioner safety in utilization and reducing program operating frequency, when the air conditioner is normal operation, inside fan can be in operating condition, even there is the trouble and continuously works in electric heater this moment, the heat that its produced also can in time be discharged, can not arouse air conditioner damage or incident. Moreover, other disturbances can be discharged only when the air conditioner is in the target standby state, ensuring that the detected variation of the tube temperature Td is caused by the electric heater, thereby ensuring the judgment accuracy.
The target standby state may be flexibly defined according to an actual situation, for example, when the air conditioner is switched to the standby state, it may be determined that the air conditioner is in the target standby state; for another example, after the air conditioner is in standby for a certain time, it may be determined that the air conditioner is in the target standby state; for another example, the air conditioner may be determined to be in the target standby state only after the air conditioner is switched from the heating mode to the standby state.
In this embodiment, the state determining step includes: and determining that the standby time of the air conditioner reaches a first preset time.
The electric heater dry-burning fault judgment is carried out after the standby time of the air conditioner reaches the first preset time, so that the interference can be effectively discharged, and the judgment precision is ensured.
Specifically, the dry burning fault determining step comprises the following steps: in case that the tube temperature Td rises, it is determined that the electric heater of the air conditioner has a dry-fire fault.
Preferably, the first preset time period is 3 minutes. That is, when the standby time period of the air conditioner reaches 3 minutes, the tube temperature Td of the evaporator of the air conditioner is still rising, i.e., it is determined that the electric heater thereof has a dry-fire condition.
In another embodiment, determining that the electric heater of the air conditioner has a dry-fire fault in case that the variation condition of the tube temperature Td meets a first predetermined condition includes: and when the rising amplitude of the tube temperature Td in a second preset time period is greater than a preset amplitude, determining that the electric heater of the air conditioner has dry burning fault. That is, when the rising speed of the tube temperature Td reaches the set speed, it is determined that the electric heater is dry-burned, which is beneficial to eliminate the erroneous judgment caused by the small fluctuation of the electric heater temperature.
For the tube temperature obtaining step, there may be various implementation manners: for example, in one implementation, it comprises: the tube temperature Td of the evaporator of the air conditioner detected by the tube temperature sensor is acquired once every a second preset time period (for example, 10 seconds). For another example, in another implementation, it includes: and acquiring the tube temperature Td of the evaporator of the air conditioner detected by the tube temperature sensor in real time.
Specifically, before the change condition determining step, the dry-fire fault determining method for the electric heater of the air conditioner further comprises the following steps: acquiring indoor environment temperature Te at a moment corresponding to the tube temperature Td detected by the tube temperature sensor; and determining that the electric heater of the air conditioner has no dry-fire fault under the condition that the difference value between the tube temperature Td and the indoor environment temperature Te meets a second preset condition.
According to the difference value between the Td and the Te, the rough judgment of whether the air-conditioning electric heater is dry-burning or not can be more conveniently carried out. If the air conditioner electric heater does not have dry burning, the temperatures of the air conditioner electric heater and the air conditioner electric heater are equal or have small difference, the second preset condition is flexibly determined according to the actual condition, namely under the condition that the temperature difference between the air conditioner electric heater and the air conditioner electric heater is small, the electric heater can be conveniently and accurately determined not to have dry burning, subsequent detection and judgment are not needed, and the program running frequency is simplified.
In the present embodiment, determining that there is no dry-fire fault in the electric heater of the air conditioner in the case where the difference between the tube temperature Td and the indoor ambient temperature Te meets the second predetermined condition includes: if Td-Te is less than or equal to A, determining that the electric heater of the air conditioner has no dry burning fault; wherein A is a preset value greater than or equal to 0.
In order to continuously monitor whether the air-conditioning electric heater has dry-burning fault, the dry-burning fault judgment method of the air-conditioning electric heater further comprises the following steps: under the condition that the variation condition of the tube temperature Td does not meet a first preset condition, sequentially and repeatedly executing a tube temperature obtaining step, a variation condition determining step and a dry burning fault determining step; and/or controlling the air conditioner to send out an alarm signal under the condition that the electric heater of the air conditioner is determined to have dry burning fault.
In specific implementation, under the condition that the electric heater of the air conditioner is determined to have dry burning fault, the method for controlling the air conditioner to send out an alarm signal comprises the following steps: and judging whether the air conditioner is connected to the Internet of things control, and controlling the air conditioner to send an alarm signal to equipment connected with the air conditioner under the condition that the air conditioner is connected to the Internet of things control. The devices connected to the air conditioner may include a mobile phone, a television, a computer, a watch, a stereo, and the like.
Next, as shown in fig. 2, an embodiment of the present invention further provides a dry-heating failure determination device for an electric heater of an air conditioner, including: a state determination unit for determining that the air conditioner is in a target standby state; a tube temperature acquisition unit for acquiring tube temperatures Td of an evaporator of the air conditioner at different times detected by the tube temperature sensor; the change condition determining unit is used for determining the change condition of the tube temperature Td according to the tube temperature Td at different moments; and the dry-burning fault determining unit is used for determining that the electric heater of the air conditioner has dry-burning faults under the condition that the variation condition of the tube temperature Td meets a first preset condition.
Specifically, the state determination unit is used for determining that the standby time of the air conditioner reaches a first preset time.
Specifically, the dry-fire fault determination unit is configured to determine that there is a dry-fire fault in the electric heater of the air conditioner in a case where the duct temperature Td rises.
Specifically, the tube temperature obtaining unit is configured to obtain the tube temperature Td of the evaporator of the air conditioner detected by the tube temperature sensor once every second preset time interval.
Specifically, before the change situation determination step, the dry-fire fault determination device of the air-conditioning electric heater further includes a room temperature acquisition unit and a no-fault determination unit: the room temperature acquisition unit is used for acquiring the room environment temperature Te at the moment corresponding to the tube temperature Td detected by the tube temperature sensor; the no-fault determination unit is used for determining that the electric heater of the air conditioner has no dry burning fault under the condition that the difference value between the tube temperature Td and the indoor environment temperature Te accords with a second preset condition.
Specifically, the no-fault determination unit is used for determining that the electric heater of the air conditioner has no dry burning fault if the-A is more than or equal to Td and the-Te is more than or equal to A; wherein A is a preset value greater than or equal to 0.
Specifically, the dry-burning fault judgment device of the air-conditioning electric heater further comprises a first control unit and a second control unit: the first control unit is used for repeatedly controlling the pipe temperature acquisition unit, the change condition determination unit and the dry-burning fault determination unit to execute in sequence under the condition that the change condition of the pipe temperature Td does not accord with a first preset condition. The second control unit is used for controlling the air conditioner to send out an alarm signal under the condition that the electric heater of the air conditioner is determined to have dry burning faults.
In addition, the embodiment of the invention also provides a nonvolatile storage medium, the nonvolatile storage medium comprises a stored program, and when the program runs, the device where the nonvolatile storage medium is located is controlled to execute the dry-burning fault judgment method of the air-conditioning electric heater.
The embodiment of the invention further provides a processor, wherein the processor is used for running the program, and the program is run to execute the dry-burning fault judgment method of the air conditioner electric heater.
Finally, the embodiment of the invention also provides an air conditioner, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes the dry-burning fault judgment method of the electric heater of the air conditioner when executing the computer program. The air conditioner referred to herein may refer to an indoor unit of an air conditioner, or may refer to an integral structure composed of an indoor unit of an air conditioner and an outdoor unit of an air conditioner.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Moreover, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions, and while a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (11)
1. A dry-burning fault judgment method for an electric heater of an air conditioner is characterized by comprising the following steps:
a state determination step: determining that the air conditioner is in a target standby state;
a tube temperature obtaining step: acquiring the tube temperature Td of the evaporator of the air conditioner at different moments detected by a tube temperature sensor;
a change situation determining step: determining the change condition of the tube temperature Td according to the tube temperature Td at different moments;
determining dry burning faults: and determining that the electric heater of the air conditioner has dry burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition.
2. The dry-fire fault diagnosis method of an electric heater of an air conditioner according to claim 1, wherein the state determination step includes:
and determining that the standby time of the air conditioner reaches a first preset time.
3. The dry-fire fault diagnosis method of an electric heater of an air conditioner according to claim 2, wherein the dry-fire fault determining step includes:
determining that there is a dry-fire failure of an electric heater of the air conditioner in case the duct temperature Td rises.
4. The dry-fire fault diagnosis method of an electric heater of an air conditioner according to claim 1, wherein the tube temperature obtaining step includes:
and acquiring the tube temperature Td of the evaporator of the air conditioner, which is detected by the tube temperature sensor once every second preset time interval.
5. The dry combustion failure determination method of an electric heater of an air conditioner according to claim 1, wherein before the change condition determination step, the dry combustion failure determination method of an electric heater of an air conditioner further comprises:
acquiring an indoor environment temperature Te at a moment corresponding to the tube temperature Td detected by the tube temperature sensor;
determining that there is no dry-fire fault in the electric heater of the air conditioner, in case that a difference value between the tube temperature Td and the indoor ambient temperature Te satisfies a second predetermined condition.
6. The dry combustion failure determination method of an electric heater of an air conditioner according to claim 5, wherein determining that there is no dry combustion failure in the electric heater of the air conditioner in a case where a difference between the duct temperature Td and the indoor ambient temperature Te satisfies a second predetermined condition includes:
if Td-Te is less than or equal to A, determining that the electric heater of the air conditioner has no dry burning fault;
wherein A is a preset value greater than or equal to 0.
7. An air-conditioning electric heater dry-fire fault determining method according to any one of claims 1 to 6, further comprising:
under the condition that the variation condition of the tube temperature Td does not meet a first preset condition, sequentially and repeatedly executing the tube temperature obtaining step, the variation condition determining step and the dry burning fault determining step; and/or the presence of a gas in the gas,
and controlling the air conditioner to send out an alarm signal under the condition that the electric heater of the air conditioner has dry burning fault.
8. The utility model provides an air conditioner electric heater's dry combustion method trouble judgement device which characterized in that includes:
a state determination unit for determining that the air conditioner is in a target standby state;
a tube temperature acquiring unit for acquiring tube temperatures Td of an evaporator of the air conditioner at different times detected by a tube temperature sensor;
the change condition determining unit is used for determining the change condition of the tube temperature Td according to the tube temperature Td at different moments;
and the dry-burning fault determining unit is used for determining that the electric heater of the air conditioner has dry-burning fault under the condition that the variation condition of the tube temperature Td meets a first preset condition.
9. A nonvolatile storage medium, characterized in that the nonvolatile storage medium includes a stored program, wherein when the program runs, a device where the nonvolatile storage medium is located is controlled to execute the dry-fire failure determination method of an electric heater of an air conditioner according to any one of claims 1 to 7.
10. A processor, characterized in that the processor is used for running a program, wherein the program is run to execute the dry-burning fault determination method of the air-conditioning electric heater of any one of claims 1 to 7.
11. An air conditioner comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor implements the dry-fire failure determination method of an electric heater of the air conditioner as claimed in any one of claims 1 to 7 when executing the computer program.
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| CN202110663406.8A CN113280471A (en) | 2021-06-15 | 2021-06-15 | Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner |
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| CN202110663406.8A CN113280471A (en) | 2021-06-15 | 2021-06-15 | Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454687A (en) * | 2022-02-08 | 2022-05-10 | 浙江吉利控股集团有限公司 | Air electric heater protection method, device, equipment and storage medium |
| CN114670603A (en) * | 2022-01-27 | 2022-06-28 | 北京新能源汽车股份有限公司 | Heater dry burning prevention control method and device based on multiple sensors |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740931A (en) * | 2005-09-08 | 2006-03-01 | 晶辉科技（深圳）有限公司 | Control method for anti-dryout of electric heating kettle |
| CN112696800A (en) * | 2020-12-25 | 2021-04-23 | 珠海格力电器股份有限公司 | Electric heater protection method and device of air conditioner, storage medium and air conditioner |
-
2021
- 2021-06-15 CN CN202110663406.8A patent/CN113280471A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740931A (en) * | 2005-09-08 | 2006-03-01 | 晶辉科技（深圳）有限公司 | Control method for anti-dryout of electric heating kettle |
| CN112696800A (en) * | 2020-12-25 | 2021-04-23 | 珠海格力电器股份有限公司 | Electric heater protection method and device of air conditioner, storage medium and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670603A (en) * | 2022-01-27 | 2022-06-28 | 北京新能源汽车股份有限公司 | Heater dry burning prevention control method and device based on multiple sensors |
| CN114454687A (en) * | 2022-02-08 | 2022-05-10 | 浙江吉利控股集团有限公司 | Air electric heater protection method, device, equipment and storage medium |
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