CN111412134A - Detection system, detection method and compressor - Google Patents

Abstract

The present invention provides a detection system, a detection method and a compressor. The detection system includes: a controller; a sensor for detecting specific performance parameters of the refrigeration device and/or the compressor; a timer for accumulating the Duration of specific performance parameters; storage unit, which is used to store preset performance parameters and preset time; and alarm, which is used to output alarm prompts; wherein, the sensor, the timer, the storage unit and the alarm respectively carry out data communication with the controller; the controller obtains and compares the specific performance parameter with the preset performance parameter and the duration and the preset time to determine whether the compressor is in an abnormal working state; if the compressor is in an abnormal working state In an abnormal working state, the controller controls the alarm device to output the alarm prompt; wherein, the sensor includes a sound sensor, a temperature sensor or a power sensor.

Description

Detection system, detection method and compressor

technical field

The invention relates to a detection system and a detection method, in particular to a detection system and a detection method of a compressor of a refrigeration device.

Background technique

As common household or commercial refrigeration devices, refrigerators and freezers are used to store and preserve fresh food, providing a lot of convenience for consumers' lives.

As a part of the refrigeration components of refrigerators and freezers, the abnormal working state of the compressor is often discovered by users or maintenance personnel after the refrigerators and freezers continue to work until failure occurs. At this time, maintenance personnel are often required to replace the compressor first to maintain the normal operation of the refrigerator and the freezer. In addition, after dismantling and analyzing the abnormal compressor, it is found that the abnormality of the compressor is mainly related to the burning of the compressor motor and the abnormal noise.

However, there is no effective detection system and detection method disclosed in the prior art. By timely notifying and reminding the user at the beginning of abnormal operation of the compressor, major operation failures of the refrigerator and the refrigerating cabinet are prevented.

In view of the above problems, how to provide an effective detection system and detection method is the subject of the present invention.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a detection system, a detection method and a compressor, which can monitor the compressor in the refrigeration device in real time, inform the user whether the compressor is in an abnormal working state in time, and prevent the compressor from working abnormally for a long time. Lead to damage to the refrigeration unit and increase its service life.

The present invention provides a detection system suitable for detecting a compressor of a refrigeration device, the detection system comprising: a controller; a sensor for detecting specific performance parameters of the refrigeration device and/or the compressor; a timer for detecting specific performance parameters of the refrigeration device and/or the compressor; in accumulating the duration of the specific performance parameter; a storage unit, which is used to store the preset performance parameter and preset time; and an alarm, which is used to output an alarm prompt; wherein, the sensor, the timer, the storage unit and The alarm device communicates with the controller respectively; the controller obtains and compares the specific performance parameter with the preset performance parameter and the duration and the preset time to determine whether the compressor is in an abnormal working state; if the When the compressor is in an abnormal working state, the controller controls the alarm device to output the alarm prompt; wherein, the sensor includes a sound sensor, a temperature sensor or a power sensor.

As an optional technical solution, the sensor is the sound sensor, and the sound sensor is arranged above the compressor or on the casing of the compressor, and is used to detect the actual noise value generated by the operation of the compressor; wherein, the definition of the The specific performance parameter is the actual noise value, the duration is the first duration, the preset performance parameter is the preset noise value, and the preset time is the first preset time; acquiring and comparing the actual noise value with the preset Set the noise value, the first duration and the first preset time; when the actual noise value is greater than the preset noise value and the first duration is greater than the first preset time, the controller determines the compressor At this time, it is in an abnormal working state, and then outputs a control signal to the alarm device, and the alarm device outputs an alarm prompt according to the control signal.

As an optional technical solution, the sensor is the temperature sensor, and the temperature sensor includes a first temperature sensor, and the first temperature sensor is disposed on the casing of the compressor and used to detect the casing temperature of the compressor; wherein , define the specific performance parameter as the shell temperature, the duration as the second duration, the preset performance parameter as the first preset temperature, and the preset time as the second preset time; obtain and compare the shell temperature and the first preset temperature and the second duration and the second preset time; when the casing temperature is greater than the first preset temperature, and the second duration is greater than the second preset time, the The controller judges that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm device, and the alarm device outputs an alarm prompt according to the control signal.

As an optional technical solution, the first preset temperature is 90°C.

As an optional technical solution, the sensor is the temperature sensor, the temperature sensor includes a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged on the casing of the compressor, and is used to detect the temperature of the compressor. Shell temperature, the second temperature sensor is arranged outside the refrigerating device to detect the ambient temperature of the external environment where the refrigerating device is located; wherein, the first temperature sensor and the second temperature sensor calculate the shell temperature The temperature difference with the ambient temperature; and define the specific performance parameter as the temperature difference, the duration as the third duration, the preset performance parameter as the preset temperature difference, and the preset time as the third preset set time; obtain and compare the temperature difference and the preset temperature difference and the third duration and the third preset time; when the temperature difference is greater than the preset temperature difference, and the third duration When the time is greater than the third preset time, the controller determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm device, and the alarm device outputs an alarm prompt according to the control signal.

As an optional technical solution, the preset temperature difference is 70°C.

As an optional technical solution, the sensor is the power sensor, and the power sensor is arranged inside the compressor to detect the operating power of the compressor; wherein, the specific performance parameter is defined as the operating power, the duration time is the fourth duration, the preset performance parameter is the preset power, and the preset time is the fourth preset time; obtain and compare the operating power and the preset power and the fourth duration and the fourth preset time; when the operating power is greater than the preset power, and the fourth duration is greater than the fourth preset time, the controller determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm, the The alarm will output an alarm prompt according to the control signal.

The present invention also provides a detection method, the detection method is used to detect the compressor of the refrigeration device, and the detection method includes:

Step 101, detecting specific performance parameters of the compressor of the refrigeration device;

Step 102, accumulating the duration of the characteristic performance parameter;

Step 103, acquiring the specific performance parameter and the duration, comparing the characteristic performance parameter with the preset performance parameter, and the duration and the preset time, and determining whether the compressor is in an abnormal working state; and

Step 104, when the compressor is in an abnormal working state, control to output an alarm prompt;

Wherein, the specific performance parameter is detected by a sensor, and the sensor includes a sound sensor, a temperature sensor or a power sensor.

The present invention also provides a compressor of a refrigeration device, which is detected by the detection system as described above.

The present invention further provides a compressor of a refrigeration device, and the compressor is detected by the above-mentioned detection method.

Compared with the prior art, in the detection system, detection method and compressor provided by the present invention, by introducing a timer, it is checked whether the abnormal duration of a specific performance parameter in the operation of the compressor continues for more than a preset time, and when it exceeds the preset time, Time, judge the abnormal operation of the compressor to prompt the user and prevent the major failure of the refrigeration device. Among them, the timer detects the duration, which can reduce the misjudgment caused by the normal change of the specific performance parameter in the interval range from the compressor startup to the normal operation.

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

Description of drawings

FIG. 1 is a functional block diagram of the detection system of the present invention.

FIG. 2 is a flow chart of the detection method of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

FIG. 1 is a functional block diagram of the detection system of the present invention.

As shown in FIG. 1 , the detection system 10 is mainly used to detect whether the compressor of the refrigeration device is in an abnormal working state, and to remind the user in time to avoid major operating failures of the refrigeration device. The refrigeration device is, for example, a refrigerator or a horizontal freezer.

The detection system 10 includes a controller 1, a sensor 2, a timer 3, a storage unit 4 and an alarm 5. The sensor 2, the timer 3, the storage unit 4 and the alarm 5 can respectively communicate with the controller 1; 2 is used to detect the specific performance parameters of the refrigeration device and/or the compressor in the refrigeration device, the signal transmission unit in the sensor 2 transmits the measured specific performance parameters to the controller 1; the timer 3 is used to accumulate the above-mentioned specific performance parameters The duration of time, that is, when the sensor 2 starts to detect a specific performance parameter, the timer 3 starts to time with the activation of the sensor 2; the storage unit 4 stores the preset performance parameter and preset time, and the controller 1 can read Preset performance parameters and preset time; the alarm device 5 is used to output an alarm prompt; wherein, the controller 1 obtains and compares the specific performance parameters and the preset performance parameters and the duration and the preset time, and determines that the compressor of the refrigeration device is abnormal In the working state, the controller 1 controls the alarm device 5 to output an alarm prompt. If it is determined that the compressor of the refrigeration device is in a non-abnormal working state, the controller 1 continues to control the sensor 2 and the timer 3 to detect the corresponding parameters, so as to continuously monitor the compressor.

In this embodiment, the timer 3 can be a timing module in the sensor 2, and the above-mentioned duration accumulated by the timer 3 can be sent to the controller 1 along with the specific performance parameters detected by the sensor 2, but not limited. In other embodiments of the present invention, the timer 3 may also be an independent unit from the sensor 2. When the sensor 2 starts to detect a specific performance parameter, the sensor 2 triggers the timer 3 to start to accumulate the duration of the specific performance parameter; or, When the sensor 2 starts to detect the specific performance parameter, the controller 1 triggers the timer 3 to start to accumulate the duration of the specific performance parameter.

The introduction of the timer 3 enables the controller 1 to consider the duration of the abnormality of the specific performance parameter when judging the abnormality of the specific performance parameter, so as to avoid the normal change of the specific performance parameter being mistakenly caused by the transition of the compressor from the startup state to the normal operation state. It is judged that the compressor is abnormal.

It should be noted that the sensor 2 starts to detect specific performance parameters. Since the refrigeration device and the compressor of the refrigeration device are continuously in working state, the above-mentioned specific performance parameters will always change within the above-mentioned duration. In order to make the diagnosis of the detection system more accurate, The above-mentioned specific performance parameters should belong to a range of values in the above-mentioned duration, and are not limited to a single value. Based on this, the preset performance parameter in the storage unit 4 may also be a range of values, rather than being limited to a single value.

In a preferred embodiment of the present invention, the sensor 2 includes a plurality of different types of sensors to detect different performance parameters of the refrigeration device or the compressor of the refrigeration device, respectively. The sensor 2 includes a sound sensor 21 , a temperature sensor 22 or a power sensor 23 .

In a preferred embodiment of the present invention, the alarm prompt output by the alarm device 5 includes, but is not limited to, a voice prompt, a text prompt, a light prompt, and a combination of the above prompts.

In a preferred embodiment of the present invention, the controller 1 is, for example, a central processing unit of a refrigeration apparatus, and the storage unit 4 is, for example, a functional module integrated on the central processing unit of the refrigeration apparatus. The central processing unit is, for example, an integrated circuit module.

In an embodiment of the present invention, the sensor 2 is, for example, a sound sensor 21. The sound sensor 21 is arranged above the compressor of the refrigeration device or on the casing of the compressor, and the sound sensor 21 is used to detect the actual noise value generated by the operation of the compressor. , that is, the above-mentioned specific performance parameters are actual noise values. At this time, the preset performance parameter in the storage unit 4 corresponds to the preset noise value, and the preset time is defined as the first preset time.

The process of the controller 1 for judging whether the compressor is in an abnormal working state includes that the sound sensor 21 starts to detect the actual noise value, the timer 3 starts to accumulate the duration of the actual noise value, and defines the duration of the actual noise value as the first duration. ; The actual noise value is transmitted to the controller 1 through the sound sensor 21, and the first duration is transmitted to the controller 1 through the timer 3, and the controller 1 receives the actual noise value and the first duration; The controller 1 reads the storage The preset noise value and the first preset time in the unit 4; and, the controller 1 compares the actual noise value with the preset noise value and the first duration and the first preset time, when the actual noise value is greater than the preset noise value , and the first duration is greater than the first preset time, the controller 1 determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm 5, and the alarm 5 outputs an alarm prompt according to the control signal, and then prompts the user to Compressors and refrigeration units in abnormal working state are maintained to prevent the formation of major failures.

In another embodiment of the present invention, the sensor 2 is, for example, a temperature sensor 22, and the temperature sensor 22 includes, for example, a first temperature sensor. The first temperature sensor is provided on the casing of the compressor of the refrigeration device, and is used to detect the temperature of the compressor. The case temperature of the case, that is, the above-mentioned specific performance parameter is the case temperature. At this time, the preset performance parameter in the storage unit 4 corresponds to the first preset temperature value, and the preset time is defined as the second preset time.

The process of the controller 1 for judging whether the compressor is in an abnormal working state includes: the first temperature sensor starts to detect the casing temperature; the timer 3 starts to accumulate the duration of the casing temperature, and the duration of the casing temperature is defined as the second. Duration; case temperature is transmitted to controller 1 via first temperature sensor, and second duration is transmitted via timer 3 to controller 1, which receives case temperature and second duration; controller 1 Read the first preset temperature and the second preset time in the storage unit 4; and, the controller 1 compares the shell temperature with the first preset temperature and the second duration and the second preset time, when the shell temperature When the temperature is greater than the first preset temperature and the second duration is greater than the second preset time, the controller 1 determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm 5, and the alarm 5 outputs an alarm prompt according to the control signal , and then prompt the user to maintain the compressor and refrigeration device in abnormal working state to prevent the formation of major failures.

In a preferred embodiment of the present invention, the first preset temperature is 90°C±5°C, that is, when the casing temperature is greater than 90°C±5°C, the working temperature of the compressor is too high, and the motor is easy to burn when running at high temperature , and at high temperature, the compressor will increase the power, which increases the energy consumption of the refrigeration device.

Further, the temperature sensor 22 further includes a second temperature sensor, and the second temperature sensor is arranged outside the refrigeration device and is used to detect the ambient temperature of the environment where the refrigeration device is located; that is, the temperature sensor 22 is a dual-sensor module unit, and at this time, Whether the compressor in the refrigeration device is in an abnormal working state is determined by obtaining the temperature difference between the shell temperature and the ambient temperature.

The temperature sensor 22 is a dual sensor module unit, the preset performance parameter in the storage unit 4 corresponds to the preset temperature difference, and the preset time is defined as the third preset time.

The temperature sensor 22 is a dual-sensor module unit, and the process of the controller 1 for judging whether the compressor is in an abnormal working state includes: the first temperature sensor is activated to detect the temperature of the casing, the second temperature sensor is activated to detect the ambient temperature, and the ambient temperature is It is transmitted to the first temperature sensor, and the first temperature sensor calculates the actual temperature difference between the casing temperature and the ambient temperature; the timer 3 starts to accumulate the duration of the actual temperature difference, and defines the duration of the actual temperature difference as the third duration. time; the actual temperature difference is sent to controller 1 via the first temperature sensor, and the third duration is sent to controller 1 via timer 3, which receives the housing temperature and the second duration; controller 1 Read the preset temperature difference and the third preset time in the storage unit 4; and, the controller 1 compares the actual temperature difference with the preset temperature difference and the third duration and the third preset time, when the actual temperature If the difference is greater than the preset temperature difference, and the third duration is greater than the third preset time, the controller 1 determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm 5, and the alarm 5 outputs according to the control signal Alarm prompt, and then prompt the user to maintain the compressor and refrigeration device in abnormal working state to prevent the formation of major failures.

In a preferred embodiment of the present invention, the temperature difference is 70°C±5°C, that is, when the casing temperature is greater than 90°C±5°C, the working temperature of the compressor is too high, and the motor is easy to burn when running at high temperature, and At high temperatures, the compressor will increase its power, which increases the energy consumption of the refrigeration unit.

In addition, the third preset time and the second preset time may be the same. Further, the above-mentioned temperature difference value can also be calculated by the second temperature sensor and transmitted to the controller.

In yet another embodiment of the present invention, the sensor 2 is, for example, a power sensor 23. The power sensor 23 is provided inside the compressor of the refrigeration device, and is used to detect the operating power of the compressor, that is, the above-mentioned specific performance parameter is the operating power. At this time, the preset performance parameter in the storage unit 4 corresponds to the preset power of the compressor, and the preset time is defined as the fourth preset time.

The process of the controller 1 for judging whether the compressor is in an abnormal working state includes that the power sensor 23 starts to detect the running power, the timer 3 starts to accumulate the duration of the running power, and the duration of the running power is defined as the fourth duration; It is transmitted to the controller 1 through the power sensor 23 and the fourth duration is transmitted to the controller 1 through the timer 3, and the controller 1 receives the operating power and the fourth duration; the controller 1 reads the preset time in the storage unit 4 Set the power and the fourth preset time; and, the controller 1 compares the operating power with the preset power and the fourth duration and the fourth preset time, when the operating power is greater than the preset power, and the fourth duration is greater than the fourth preset time. Set the time, the controller 1 judges that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm device 5, and the alarm device 5 outputs an alarm prompt according to the control signal, and then prompts the user to carry out the operation of the compressor and the refrigeration device in the abnormal working state. Maintenance to prevent major failures from forming.

In addition, the power sensor 23 can also measure the electrical signal generated during the operation of the compressor. The electrical signal includes the current of the motor, etc. The electrical signal can replace the above-mentioned operating power and can also be used to determine whether the compressor is in an abnormal working state.

FIG. 2 is a flow chart of the detection method of the present invention.

The detection method 100 corresponds to the detection system 10 , and the detection method 100 is suitable for detecting the abnormal working state of a compressor of a refrigeration device. The detection method 100 includes:

Step 101, detecting specific performance parameters of the compressor of the refrigeration device;

Step 102, accumulating the duration of the above characteristic performance parameters;

Step 103, obtaining the specific performance parameter and the duration, comparing the characteristic performance parameter with the preset performance parameter, and the duration and the preset time, and determining whether the compressor is in an abnormal working state; and

Step 104, when the compressor is in an abnormal working state, control to output an alarm prompt;

The detection method 100 further includes, step 105 , returning to step 101 when the compressor is in a non-abnormal working state.

The specific performance parameters can be detected by the sensor 2 in the detection system 10 , and the sensor 2 includes, but is not limited to, a sound sensor 21 , a temperature sensor 22 or a power sensor 23 . The sound sensor 21 detects the actual noise value of the compressor; the temperature sensor 22 detects the casing temperature of the compressor and/or the ambient temperature of the external environment where the refrigeration device is located; and the power sensor 23 detects the operating power of the compressor.

The present invention also provides a compressor of a refrigeration device, and the compressor can be detected by the detection system 10 or the detection method 100 .

To sum up, in the detection system, detection method and compressor provided by the present invention, by introducing a timer, it is checked whether the abnormal duration of a specific performance parameter in the compressor's operation lasts for more than a preset time, and when it exceeds the preset time, it is judged that the compressor is compressed. The machine works abnormally to remind the user and prevent the major failure of the refrigeration device. Among them, the timer detects the duration, which can reduce the misjudgment caused by the normal change of the specific performance parameter in the interval range from the compressor startup to the normal operation.

Of course, the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformation should belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. A detection system, suitable for detecting the compressor of a refrigeration device, is characterized in that, the detection system comprises: controller; a sensor for detecting specific performance parameters of the refrigeration device and/or the compressor; a timer for accumulating the duration of that particular performance parameter; a storage unit for storing preset performance parameters and preset time; and an alarm, which is used to output an alarm prompt; Wherein, the sensor, the timer, the storage unit and the alarm are respectively in data communication with the controller; the controller obtains and compares the specific performance parameter with the preset performance parameter and the duration and the preset time , judging whether the compressor is in an abnormal working state; if the compressor is in an abnormal working state, the controller controls the alarm to output the alarm prompt; Wherein, the sensor includes a sound sensor, a temperature sensor or a power sensor. 2 . The detection system according to claim 1 , wherein the sensor is the sound sensor, and the sound sensor is disposed above the compressor or on the casing of the compressor, and is used to detect the operation of the compressor. 3 . the actual noise value; Wherein, define the specific performance parameter as the actual noise value, the duration as the first duration, the preset performance parameter as the preset noise value, and the preset time as the first preset time; obtain and compare the actual noise value and the preset noise value and the first duration and the first preset time; when the actual noise value is greater than the preset noise value, and the first duration is greater than the first preset time, the controller It is judged that the compressor is in an abnormal working state at this time, and then a control signal is output to the alarm device, and the alarm device outputs an alarm prompt according to the control signal. 3 . The detection system of claim 1 , wherein the sensor is the temperature sensor, the temperature sensor comprises a first temperature sensor, and the first temperature sensor is disposed on the casing of the compressor for detecting the shell temperature of the compressor; Wherein, the specific performance parameter is defined as the shell temperature, the duration is the second duration, the preset performance parameter is the first preset temperature, and the preset time is the second preset time; obtain and compare the shell body temperature and the first preset temperature and the second duration and the second preset time; when the shell temperature is greater than the first preset temperature, and the second duration is greater than the second preset time, The controller determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm device, and the alarm device outputs an alarm prompt according to the control signal. 4. The detection system of claim 3, wherein the first preset temperature is 90°C. 5 . The detection system of claim 1 , wherein the sensor is the temperature sensor, the temperature sensor comprises a first temperature sensor and a second temperature sensor, and the first temperature sensor is disposed on the casing of the compressor 5 . The upper part is used to detect the shell temperature of the compressor, and the second temperature sensor is arranged outside the refrigeration device to detect the ambient temperature of the external environment where the refrigeration device is located; Wherein, the first temperature sensor and the second temperature sensor calculate the temperature difference between the casing temperature and the ambient temperature; and define the specific performance parameter as the temperature difference, the duration is the third duration, the preset Set the performance parameter as a preset temperature difference, and the preset time as a third preset time; obtain and compare the temperature difference and the preset temperature difference and the third duration and the third preset time; when The temperature difference is greater than the preset temperature difference, and the third duration is greater than the third preset time, the controller determines that the compressor is in an abnormal working state at this time, and then outputs a control signal to the alarm, the The alarm will output an alarm prompt according to the control signal. 6 . The detection system of claim 5 , wherein the predetermined temperature difference is 70° C. 7 . 7. The detection system of claim 1, wherein the sensor is the power sensor, and the power sensor is arranged inside the compressor to detect the operating power of the compressor; The specific performance parameter is defined as the operating power, the duration is the fourth duration, the preset performance parameter is the preset power, and the preset time is the fourth preset time; obtain and compare the operating power with the Preset power and the fourth duration and the fourth preset time; when the operating power is greater than the preset power, and the fourth duration is greater than the fourth preset time, the controller determines that the compressor is at this time It is in an abnormal working state, and then outputs a control signal to the alarm device, and the alarm device outputs an alarm prompt according to the control signal. 8. A detection method for detecting a compressor of a refrigeration device, wherein the detection method comprises: Step 101, detecting specific performance parameters of the compressor of the refrigeration device; Step 102, accumulating the duration of the characteristic performance parameter; Step 103, acquiring the specific performance parameter and the duration, comparing the characteristic performance parameter with the preset performance parameter, and the duration and the preset time, and determining whether the compressor is in an abnormal working state; and Step 104, when the compressor is in an abnormal working state, control to output an alarm prompt; Wherein, the specific performance parameter is detected by a sensor, and the sensor includes a sound sensor, a temperature sensor or a power sensor. 9. A compressor of a refrigeration device, characterized in that the compressor is detected by the detection system according to any one of claims 1-7. 10 . A compressor of a refrigeration device, characterized in that the compressor is detected by the detection method of claim 8 .

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