CN107255352B - Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner - Google Patents
Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner Download PDFInfo
- Publication number
- CN107255352B CN107255352B CN201710632874.2A CN201710632874A CN107255352B CN 107255352 B CN107255352 B CN 107255352B CN 201710632874 A CN201710632874 A CN 201710632874A CN 107255352 B CN107255352 B CN 107255352B
- Authority
- CN
- China
- Prior art keywords
- temperature
- value
- radiator
- compressor
- temperature value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a method and a device for detecting temperature failure or poor contact of a radiator thereof, wherein the method comprises the following steps: after a starting instruction of the compressor is received, a first temperature value detected by a temperature sensor and a current outdoor environment temperature within a first preset time after the compressor is started are obtained, when a temperature difference value between the first temperature value and the current outdoor environment temperature is judged to be smaller than a first temperature threshold value, a minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started is obtained, timing is started from a time corresponding to the minimum temperature value, when the timing time reaches a third preset time, a second temperature value detected by the temperature sensor is obtained, and when the temperature difference value between the second temperature value and the minimum temperature value is judged to be smaller than a second temperature threshold value, the temperature sensor is judged to be invalid or the radiator and a refrigerant pipeline are in poor contact.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method for detecting temperature failure or poor contact of a radiator in an air conditioner, a device for detecting temperature failure or poor contact of the radiator in the air conditioner and the air conditioner with the device.
Background
At present, in order to improve the high-temperature refrigerating capacity of a multi-split system (for example, an inverter multi-split system), the operation frequency of a compressor needs to be increased, however, the temperature of an inverter module is increased due to the increase of the operation frequency of the compressor.
In order to effectively reduce the temperature of the module, in the related art, the refrigerant cooling module can be used in the system, wherein the refrigerant cooling module presses the heat exchange copper pipe in the module radiator, but the processing technology cannot completely ensure the heat dissipation effect between the copper pipe and the module radiator. Therefore, the module temperature needs to be detected, and whether the heat dissipation is met or not is judged by comparing with the heat exchange effect, if the operation requirement cannot be met, the frequency can be limited to rise or stop, and the damage of the module caused by overhigh module temperature is prevented.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present invention is to provide a method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner, which can accurately and effectively determine the phenomenon of the temperature sensor failure or the poor contact of the heat sink and a refrigerant pipeline.
A second object of the invention is to propose a computer-readable storage medium.
The third purpose of the invention is to provide a detection device for temperature failure or poor contact of a radiator in an air conditioner.
A fourth object of the present invention is to provide an air conditioner.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner, where the air conditioner includes a compressor, an inverter module for driving the compressor to operate, a refrigerant heat dissipation module for dissipating heat from the inverter module, and a temperature sensor, the refrigerant heat dissipation module includes a refrigerant pipeline and a heat sink, the refrigerant pipeline is disposed in the heat sink and is in contact with the heat sink, and the temperature sensor is configured to detect a temperature value of the heat sink, and the method includes the following steps: after a starting instruction of the compressor is received, acquiring a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and a current outdoor environment temperature; judging whether the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold value or not; if the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than the first temperature threshold value, acquiring a minimum temperature value detected by the temperature sensor within second preset time after the compressor is started, starting timing from the time corresponding to the minimum temperature value, and acquiring a second temperature value detected by the temperature sensor when the timing time reaches third preset time; judging whether the temperature difference value between the second temperature value and the minimum temperature value is smaller than a second temperature threshold value or not; and if the temperature difference value between the second temperature value and the minimum temperature value is smaller than the second temperature threshold value, judging that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
According to the method for detecting the temperature failure or poor contact of the radiator in the air conditioner of the embodiment of the invention, after receiving a starting instruction of the compressor, acquiring a first temperature value detected by a temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature, and when the temperature difference between the first temperature value and the current outdoor environment temperature is judged to be less than the first temperature threshold value, acquiring the minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started, then, starting timing from the time corresponding to the acquired minimum temperature value, acquiring a second temperature value detected by the temperature sensor when the timing time reaches a third preset time, and when the temperature difference between the second temperature value and the minimum temperature value is judged to be smaller than a second temperature threshold value, the temperature sensor is judged to be invalid or the radiator and the refrigerant pipeline are judged to be in poor contact. Therefore, the method can accurately and effectively judge the phenomenon that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
In addition, the method for detecting temperature failure or poor contact of the radiator in the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, if the temperature difference between the first temperature value and the current outdoor environment temperature is greater than or equal to the first temperature threshold, it is determined that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
According to an embodiment of the present invention, if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, it is determined that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
According to one embodiment of the invention, when the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline, the compressor is controlled to stop and a fault code is output.
In order to achieve the above object, a second aspect of the present invention provides a computer-readable storage medium having instructions stored therein, wherein when the instructions are executed, the air conditioner performs the above method for detecting temperature failure or poor contact of a radiator.
According to the computer-readable storage medium provided by the embodiment of the invention, by executing the temperature failure or poor contact detection method of the radiator, the phenomenon that the temperature sensor fails or the radiator and a refrigerant pipeline are in poor contact can be accurately and effectively judged.
In order to achieve the above object, a third embodiment of the present invention provides a device for detecting temperature failure or poor contact of a heat sink in an air conditioner, where the air conditioner includes a compressor, an inverter module for driving the compressor to operate, a refrigerant heat dissipation module for dissipating heat from the inverter module, and a temperature sensor, the refrigerant heat dissipation module includes a refrigerant pipeline and a heat sink, the refrigerant pipeline is disposed in the heat sink and is in contact with the heat sink, the temperature sensor is configured to detect a temperature value of the heat sink, and the device includes: the acquisition module is used for acquiring a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature after the compressor is started; the judging module is used for judging whether the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold value or not; the obtaining module is further configured to obtain a minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started up when a temperature difference between the first temperature value and the current outdoor environment temperature is smaller than the first temperature threshold, start timing from time when the minimum temperature value is obtained, and obtain a second temperature value detected by the temperature sensor when the timing time reaches a third preset time; the judgment module is further configured to judge whether a temperature difference between the second temperature value and the minimum temperature value is smaller than a second temperature threshold, wherein if the temperature difference between the second temperature value and the minimum temperature value is smaller than the second temperature threshold, the judgment module judges that the temperature sensor fails or the radiator and the refrigerant pipeline are in poor contact.
According to the detection device for temperature failure or poor contact of the radiator in the air conditioner of the embodiment of the invention, after receiving a starting instruction of the compressor, the acquisition module acquires a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature, and when the judging module judges that the temperature difference value between the first temperature value and the current outdoor environment temperature is less than the first temperature threshold value, the acquisition module acquires the minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started, then, starting timing from the time corresponding to the acquired minimum temperature value, acquiring a second temperature value detected by the temperature sensor when the timing time reaches a third preset time, and when the judging module judges that the temperature difference value between the second temperature value and the minimum temperature value is smaller than a second temperature threshold value, the failure of the temperature sensor or the poor contact between the radiator and the refrigerant pipeline is judged. Therefore, the device can accurately and effectively judge the phenomenon that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
In addition, the detection device for temperature failure or poor contact of the radiator in the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, if the temperature difference between the first temperature value and the current outdoor environment temperature is greater than or equal to the first temperature threshold, the determining module determines that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
According to an embodiment of the present invention, if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, the determining module determines that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
According to an embodiment of the present invention, the apparatus for detecting temperature failure or poor contact of a heat sink in an air conditioner further includes: and the control module is used for controlling the compressor to stop and outputting a fault code when the judging module judges that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
In order to achieve the above object, a fourth aspect of the present invention provides an air conditioner, which includes the above device for detecting temperature failure or poor contact of the heat sink.
According to the air conditioner provided by the embodiment of the invention, the phenomenon of failure of the temperature sensor or poor contact between the radiator and the refrigerant pipeline can be accurately and effectively judged through the detection device for temperature failure or poor contact between the radiator and the refrigerant pipeline.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a method for detecting a temperature failure or a poor contact of a radiator in an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner according to an embodiment of the present invention;
FIG. 4 is a block diagram of an apparatus for detecting temperature failure or poor contact of a heat sink in an air conditioner according to an embodiment of the present invention; and
fig. 5 is a block diagram illustrating an apparatus for detecting a temperature failure or a poor contact of a radiator in an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A method for detecting a temperature failure or a radiator contact failure in an air conditioner, a device for detecting a temperature failure or a radiator contact failure in an air conditioner, and an air conditioner having the same according to embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for detecting a temperature failure or a poor contact of a radiator in an air conditioner according to an embodiment of the present invention.
In an embodiment of the present invention, as shown in fig. 2, the air conditioner may include a compressor 1, an inverter module (not specifically shown) for driving the compressor to operate, a refrigerant heat dissipation module 8 for dissipating heat from the inverter module, and a temperature sensor 7, where the refrigerant heat dissipation module 8 may include a refrigerant pipeline 4 and a heat sink 5, the refrigerant pipeline 4 is disposed in the heat sink 5 and is in contact with the heat sink 5, and the temperature sensor 7 is configured to detect a temperature value of the heat sink.
Referring to fig. 2, the air conditioner may further include an indoor heat exchanger 2, a throttling part 3, and an outdoor heat exchanger 6. When the air conditioner operates in a refrigeration mode, the outdoor heat exchanger 2 serves as a condenser and is used for dissipating heat of high-temperature and high-pressure gaseous refrigerant coming out of the compressor, the dissipated refrigerant is throttled and depressurized by the throttling component 3 and then enters the indoor and outdoor heat exchangers (evaporators) to evaporate and absorb heat to form low-temperature and low-pressure gaseous refrigerant, and the low-temperature and low-pressure gaseous refrigerant returns to the compressor 1. When the air conditioner operates in a heating mode, the indoor heat exchanger 6 serves as a condenser and is used for radiating high-temperature high-pressure gaseous refrigerant coming out of the compressor 1, the radiated refrigerant is throttled and depressurized by the throttling component 3 and then enters the outdoor heat exchanger (evaporator) to be evaporated and radiated to form low-temperature low-pressure gaseous refrigerant, and then the low-temperature low-pressure gaseous refrigerant returns to the compressor 1.
As shown in fig. 1, a method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner according to an embodiment of the present invention may include the following steps:
s1, after receiving the starting instruction of the compressor, acquiring a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature. The first preset time can be calibrated according to actual conditions.
Specifically, when the compressor is started for a first preset time, the temperature of the radiator is detected by a temperature sensor arranged on the radiator, and is recorded as a first temperature value T1, and the current outdoor environment temperature T2 is obtained by an outdoor environment temperature sensor.
And S2, judging whether the temperature difference between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold value, wherein the first temperature threshold value can be calibrated according to the actual situation.
S3, if the temperature difference between the first temperature value and the current outdoor environment temperature is smaller than the first temperature threshold, acquiring the minimum temperature value detected by the temperature sensor within the second preset time after the compressor is started, starting timing from the time corresponding to the minimum temperature value, and acquiring the second temperature value detected by the temperature sensor when the timing time reaches the third preset time. And the second preset time and the third preset time can be calibrated according to actual conditions.
According to an embodiment of the present invention, if the temperature difference between the first temperature value and the current outdoor environment temperature is greater than or equal to the first temperature threshold, it is determined that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
Specifically, after the first temperature value T1 and the current outdoor ambient temperature T2 are acquired, a temperature difference between the two is calculated, and the temperature difference is determined. If T1-T2 is larger than or equal to the first temperature threshold value a, the temperature value is detected normally, namely the temperature sensor is in a normal state and the radiator is in good contact with the refrigerant pipeline, and the compressor can be controlled to run normally at the moment. If T1-T2 is less than a, the minimum temperature value Tmin detected by the temperature sensor in the second preset time T2 after the compressor is started is obtained, timing is started from the moment when the minimum temperature value is obtained, and when the timing time reaches the third preset time T3, the second temperature value T' detected by the temperature sensor is obtained.
It should be noted that, when it is determined that T1-T2 < a, the temperature value of the heat sink is gradually decreased during a period of time when the compressor is started, because the air conditioner is suddenly powered off before the compressor is started, and the operating frequency of the compressor is low after the compressor is started, and the temperature value of the heat sink does not reach the temperature value before the power off. When the operating frequency of the compressor reaches a certain value, the temperature value of the radiator will gradually increase, and at this time, the temperature sensor will detect a minimum temperature value Tmin. Therefore, the phenomenon of poor contact between the temperature sensor or the radiator and the refrigerant pipeline can be judged according to the temperature change value within a period of starting.
And S4, judging whether the temperature difference value between the second temperature value and the minimum temperature value is smaller than a second temperature threshold value. The second temperature threshold value can be calibrated according to actual conditions.
And S5, if the temperature difference between the second temperature value and the minimum temperature value is less than a second temperature threshold value, judging that the temperature sensor fails or the radiator and the refrigerant pipeline are in poor contact.
According to an embodiment of the present invention, if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, it is determined that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
Specifically, after the minimum temperature value Tmin and the second temperature value T' are acquired, a temperature difference between the two is calculated, and the temperature difference is determined. If T' -Tmin is larger than or equal to the second temperature threshold b, the temperature value is detected normally, namely the temperature sensor is in a normal state and the radiator is in good contact with the refrigerant pipeline, and the compressor can be controlled to normally operate. If T' -Tmin < b, judging that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
Therefore, the method for detecting the temperature failure or poor contact of the radiator in the air conditioner can be used for firstly comparing the temperature value of the radiator with the outdoor environment temperature after the compressor is started, and then effectively and accurately judging the phenomenon of the failure of the module temperature sensor or the poor contact of the module radiator according to the change value of the temperature of the radiator within a certain time after the compressor is started.
In order to prevent the refrigerant heat dissipation module from being damaged due to high temperature and ensure the reliability of the air conditioner, according to one embodiment of the invention, when the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline, the compressor is controlled to stop and a fault code is output.
That is to say, when judging that temperature sensor became invalid or radiator and refrigerant pipeline contact failure, control compressor shut down to prevent that refrigerant heat dissipation module from damaging because of high temperature, simultaneously, still can send the warning and remind, in order to remind the user in time to maintain, and output corresponding fault code, make things convenient for maintenance personal to maintain.
To make the present invention more clear to those skilled in the art, fig. 3 is a flowchart of a method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the method for detecting temperature failure or poor contact of the radiator in the air conditioner may include the following steps:
s101, starting the compressor.
S102, after a first preset time T1, obtaining a temperature value T1 of the radiator and a current outdoor environment temperature T2.
S103, judging whether T1-T2 is more than or equal to the first temperature threshold a. If yes, go to step S108; if not, step S104 is executed.
S104, obtaining the minimum temperature value Tmin within a second preset time t2 after the compressor is started.
S105, starting timing when the Tmin is obtained, and obtaining a temperature value T' of the radiator after reaching a third preset time T3.
S106, judging whether the temperature is equal to or greater than the second temperature threshold b. If yes, go to step S108; if not, step S107 is performed.
S107, the compressor is stopped, and a fault code is output.
And S108, normally operating the compressor.
In summary, according to the method for detecting temperature failure or poor contact of the heat sink in the air conditioner of the embodiment of the invention, after receiving a starting instruction of the compressor, acquiring a first temperature value detected by a temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature, and when the temperature difference between the first temperature value and the current outdoor environment temperature is judged to be less than the first temperature threshold value, acquiring the minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started, then, starting timing from the time corresponding to the acquired minimum temperature value, acquiring a second temperature value detected by the temperature sensor when the timing time reaches a third preset time, and when the temperature difference between the second temperature value and the minimum temperature value is judged to be smaller than a second temperature threshold value, the temperature sensor is judged to be invalid or the radiator and the refrigerant pipeline are judged to be in poor contact. Therefore, the method can accurately and effectively judge the phenomenon that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
Fig. 4 is a block diagram illustrating an apparatus for detecting a temperature failure or a poor contact of a radiator in an air conditioner according to an embodiment of the present invention.
In an embodiment of the present invention, the air conditioner may include a compressor, an inverter module for driving the compressor to operate, a refrigerant heat dissipation module for dissipating heat from the inverter module, and a temperature sensor, where the refrigerant heat dissipation module may include a refrigerant pipeline and a heat sink, the refrigerant pipeline is disposed in the heat sink and contacts with the heat sink, and the temperature sensor is configured to detect a temperature value of the heat sink.
As shown in fig. 4, the apparatus for detecting temperature failure or poor contact of a heat sink in an air conditioner according to an embodiment of the present invention may include: an acquisition module 10 and a judgment module 20.
The obtaining module 10 is configured to obtain a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and a current outdoor environment temperature after the compressor is started. The determining module 20 is configured to determine whether a temperature difference between the first temperature value and the current outdoor ambient temperature is smaller than a first temperature threshold. The obtaining module 10 is further configured to obtain a minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started up when a temperature difference between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold, start timing from a time corresponding to the obtained minimum temperature value, and obtain a second temperature value detected by the temperature sensor when the timing time reaches a third preset time. The judging module 20 is further configured to judge whether a temperature difference between the second temperature value and the minimum temperature value is smaller than a second temperature threshold, wherein if the temperature difference between the second temperature value and the minimum temperature value is smaller than the second temperature threshold, the judging module 20 judges that the temperature sensor fails or the radiator and the refrigerant pipeline are in poor contact.
According to an embodiment of the present invention, if the temperature difference between the first temperature value and the current outdoor environment temperature is greater than or equal to the first temperature threshold, the determining module 20 determines that the temperature sensor is in the normal state and the heat sink is in good contact with the refrigerant pipeline.
According to an embodiment of the present invention, if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, the determining module 20 determines that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
According to an embodiment of the present invention, as shown in fig. 5, the apparatus for detecting temperature failure or poor contact of a heat sink in an air conditioner further includes: and the control module 30, the control module 30 is used for controlling the compressor to stop and outputting a fault code when the judging module 20 judges that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
It should be noted that, for details not disclosed in the apparatus for detecting a temperature failure or a poor contact of a heat sink in an air conditioner according to an embodiment of the present invention, please refer to details disclosed in the method for detecting a temperature failure or a poor contact of a heat sink in an air conditioner according to an embodiment of the present invention, and detailed descriptions thereof are omitted here.
According to the detection device for temperature failure or poor contact of the radiator in the air conditioner of the embodiment of the invention, after receiving a starting instruction of the compressor, the acquisition module acquires a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature, and when the judging module judges that the temperature difference value between the first temperature value and the current outdoor environment temperature is less than the first temperature threshold value, the acquisition module acquires the minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started, then, starting timing from the time corresponding to the acquired minimum temperature value, acquiring a second temperature value detected by the temperature sensor when the timing time reaches a third preset time, and when the judging module judges that the temperature difference value between the second temperature value and the minimum temperature value is smaller than a second temperature threshold value, the failure of the temperature sensor or the poor contact between the radiator and the refrigerant pipeline is judged. Therefore, the device can accurately and effectively judge the phenomenon that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
In addition, an embodiment of the present invention further provides a computer-readable storage medium having instructions stored therein, wherein when the instructions are executed, the air conditioner executes the above-mentioned temperature failure or poor heat sink contact detection method.
According to the computer-readable storage medium provided by the embodiment of the invention, by executing the temperature failure or poor contact detection method of the radiator, the phenomenon that the temperature sensor fails or the radiator and a refrigerant pipeline are in poor contact can be accurately and effectively judged.
In addition, the embodiment of the invention also provides an air conditioner, which comprises the detection device for temperature failure or poor contact of the radiator.
According to the air conditioner provided by the embodiment of the invention, the phenomenon of failure of the temperature sensor or poor contact between the radiator and the refrigerant pipeline can be accurately and effectively judged through the detection device for temperature failure or poor contact between the radiator and the refrigerant pipeline.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In addition, in the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The method for detecting temperature failure or poor contact of the radiator in the air conditioner is characterized by comprising a compressor, a frequency conversion module for driving the compressor to operate, a refrigerant heat dissipation module for dissipating heat of the frequency conversion module and a temperature sensor, wherein the refrigerant heat dissipation module comprises a refrigerant pipeline and a radiator, the refrigerant pipeline is arranged in the radiator and is in contact with the radiator, the temperature sensor is used for detecting the temperature value of the radiator, and the detection method comprises the following steps:
after a starting instruction of the compressor is received, acquiring a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and a current outdoor environment temperature;
judging whether the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold value or not;
if the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than the first temperature threshold value, acquiring a minimum temperature value detected by the temperature sensor within second preset time after the compressor is started, starting timing from the time corresponding to the minimum temperature value, and acquiring a second temperature value detected by the temperature sensor when the timing time reaches third preset time;
judging whether the temperature difference value between the second temperature value and the minimum temperature value is smaller than a second temperature threshold value or not;
and if the temperature difference value between the second temperature value and the minimum temperature value is smaller than the second temperature threshold value, judging that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
2. The method as claimed in claim 1, wherein if the temperature difference between the first temperature value and the current outdoor temperature is greater than or equal to the first temperature threshold, the temperature sensor is determined to be in a normal state and the heat sink is in good contact with the refrigerant pipeline.
3. The method as claimed in claim 1 or 2, wherein if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, it is determined that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
4. The method as claimed in claim 3, wherein when it is determined that the temperature sensor is out of order or the radiator is out of contact with the refrigerant line, the compressor is controlled to stop and a fault code is outputted.
5. A computer-readable storage medium having instructions stored therein, which when executed, the air conditioner performs the method for detecting temperature failure or radiator contact failure according to any one of claims 1 to 4.
6. The utility model provides a detection apparatus for temperature failure or radiator contact failure in air conditioner, its characterized in that, the air conditioner includes the compressor, is used for the drive compressor moving frequency conversion module, be used for right the radiating refrigerant heat dissipation module of frequency conversion module, temperature sensor, refrigerant heat dissipation module includes refrigerant pipeline and radiator, the refrigerant pipeline sets up in the radiator and with the radiator contacts, temperature sensor is used for detecting the temperature value of radiator, detection apparatus includes:
the acquisition module is used for acquiring a first temperature value detected by the temperature sensor at a first preset time after the compressor is started and the current outdoor environment temperature after the compressor is started;
the judging module is used for judging whether the temperature difference value between the first temperature value and the current outdoor environment temperature is smaller than a first temperature threshold value or not;
the obtaining module is further configured to obtain a minimum temperature value detected by the temperature sensor within a second preset time after the compressor is started up when a temperature difference between the first temperature value and the current outdoor environment temperature is smaller than the first temperature threshold, start timing from time when the minimum temperature value is obtained, and obtain a second temperature value detected by the temperature sensor when the timing time reaches a third preset time;
the judgment module is further configured to judge whether a temperature difference between the second temperature value and the minimum temperature value is smaller than a second temperature threshold, wherein if the temperature difference between the second temperature value and the minimum temperature value is smaller than the second temperature threshold, the judgment module judges that the temperature sensor fails or the radiator and the refrigerant pipeline are in poor contact.
7. The apparatus of claim 6, wherein if the temperature difference between the first temperature value and the current outdoor ambient temperature is greater than or equal to the first temperature threshold, the determining module determines that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
8. The apparatus of claim 6 or 7, wherein if the temperature difference between the second temperature value and the minimum temperature value is greater than or equal to the second temperature threshold, the determining module determines that the temperature sensor is in a normal state and the heat sink is in good contact with the refrigerant pipeline.
9. The apparatus for detecting a temperature failure or a radiator contact failure in an air conditioner according to claim 8, further comprising:
and the control module is used for controlling the compressor to stop and outputting a fault code when the judging module judges that the temperature sensor fails or the radiator is in poor contact with the refrigerant pipeline.
10. An air conditioner characterized by comprising the detection device for temperature failure or radiator contact failure according to any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632874.2A CN107255352B (en) | 2017-07-28 | 2017-07-28 | Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632874.2A CN107255352B (en) | 2017-07-28 | 2017-07-28 | Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255352A CN107255352A (en) | 2017-10-17 |
| CN107255352B true CN107255352B (en) | 2020-06-05 |
Family
ID=60025348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710632874.2A Active CN107255352B (en) | 2017-07-28 | 2017-07-28 | Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255352B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702293A (en) * | 2017-09-20 | 2018-02-16 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method |
| CN108168731B (en) * | 2017-12-15 | 2019-12-20 | 珠海格力电器股份有限公司 | Detection device, method and test tool |
| CN109506316B (en) * | 2018-10-30 | 2020-12-25 | 珠海格力电器股份有限公司 | Method and system for monitoring on-off state of air conditioning unit |
| CN109827287B (en) * | 2018-12-19 | 2020-03-27 | 珠海格力电器股份有限公司 | Non-failure abnormity detection method for air conditioner temperature sensing bulb and air conditioner |
| CN111412134A (en) * | 2019-01-07 | 2020-07-14 | 青岛海尔特种电冰柜有限公司 | Detection system, detection method and compressor |
| CN110177446B (en) * | 2019-05-28 | 2020-08-25 | 珠海格力电器股份有限公司 | Radiator control method, frequency converter assembly, household appliance and computer readable storage medium |
| CN110715399A (en) * | 2019-10-21 | 2020-01-21 | 广东美的制冷设备有限公司 | Detection method and device for sensor in air conditioner, air conditioner and electronic equipment |
| CN110715400A (en) * | 2019-10-21 | 2020-01-21 | 广东美的制冷设备有限公司 | Detection method and device for sensor in air conditioner, air conditioner and electronic equipment |
| CN110793151B (en) * | 2019-11-19 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Multi-split refrigerant control method and device, air conditioner and storage medium |
| CN110986270B (en) * | 2019-12-16 | 2020-11-27 | 珠海格力电器股份有限公司 | Semiconductor air conditioner fault detection method and device and semiconductor air conditioner |
| CN113188681B (en) * | 2021-04-28 | 2024-02-09 | 宁波奥克斯电气股份有限公司 | Installation fit degree testing method and installation fit degree testing system |
| CN113074436B (en) * | 2021-05-07 | 2022-03-29 | 宁波奥克斯电气股份有限公司 | Control method and device for failure of indoor temperature sensor and air conditioner |
| CN115264749A (en) * | 2022-06-29 | 2022-11-01 | 青岛海尔空调器有限总公司 | Air conditioner fault detection method and device, air conditioner and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9765984B2 (en) * | 2014-04-02 | 2017-09-19 | Trane International Inc. | Thermostat temperature compensation modeling |
| CN104501352A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Detection method, detection system and air conditioner |
| CN104949267A (en) * | 2015-06-08 | 2015-09-30 | 广东美的暖通设备有限公司 | Method and device for judging failure of frequency conversion module temperature detecting device |
| CN105115111B (en) * | 2015-09-18 | 2019-04-30 | 广东美的制冷设备有限公司 | The temperature-sensitive packet inspection method of air conditioner indoor unit and air conditioner indoor unit |
| CN106765892B (en) * | 2016-11-29 | 2019-07-26 | 广东美的暖通设备有限公司 | Multi-line system and its outdoor heat exchanger temperature-sensitive packet inspection method and device |
| CN106839163A (en) * | 2017-03-14 | 2017-06-13 | 芜湖美智空调设备有限公司 | Heat radiation protection device, method and air-conditioner for the outdoor Electrical Control of air-conditioner |
-
2017
- 2017-07-28 CN CN201710632874.2A patent/CN107255352B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107255352A (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107255352B (en) | Air conditioner and detection method and device for temperature failure or poor contact of radiator of air conditioner | |
| CN109028452B (en) | Air conditioning system and refrigerant heat dissipation device and method thereof | |
| CN108731224B (en) | Control method, device and equipment of fixed-frequency air conditioning system and fixed-frequency air conditioning system | |
| CN107940827B (en) | Multi-split air conditioning system and refrigerant distribution control method and device thereof | |
| CN107560007B (en) | Air conditioning system and condensation prevention control method and device for refrigerant radiating pipe of air conditioning system | |
| WO2016107202A1 (en) | Refrigerant control method for multi-split machine connected in series | |
| CN111486574B (en) | Air conditioning system, anti-condensation control method and device thereof, and storage medium | |
| CN109945389B (en) | Control method and device of air conditioner and air conditioner | |
| CN111256292B (en) | Air conditioner and control method thereof | |
| CN110645671A (en) | Air conditioner high temperature prevention control method and device and air conditioner | |
| JP4990702B2 (en) | Refrigerant leak detection device, air conditioner, and refrigerant leak detection method | |
| CN107238240B (en) | Air-cooled water chilling unit and control method and device of fan of air-cooled water chilling unit | |
| JP2008249239A (en) | Control method of cooling device, cooling device and refrigerating storage | |
| CN109798644B (en) | Control method and air conditioning system | |
| JP4606394B2 (en) | Refrigerant leak detection method, refrigerant leak detection device, and air conditioner | |
| CN112665301A (en) | Temperature compensation method and device for refrigerator temperature-changing chamber, controller and refrigerator | |
| CN108692421B (en) | Refrigerant cooling device, abnormality detection method thereof and air conditioning system | |
| KR20150134320A (en) | Variable frequency drive operation to avoid overheating | |
| EP3674621B1 (en) | Air conditioner | |
| CN111503854B (en) | Air conditioning system, anti-condensation control method and device thereof, and storage medium | |
| JP2010025374A (en) | Refrigerating device | |
| US11397021B2 (en) | Outdoor unit, indoor unit, and air conditioner | |
| JP5212330B2 (en) | Air conditioner | |
| US20240219056A1 (en) | Multi-split air conditioning system and control method therefor | |
| JP2011149611A (en) | Air-conditioning apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |