CN113405170B - Heat dissipation device installation detection method and device and air conditioner - Google Patents

Heat dissipation device installation detection method and device and air conditioner Download PDF

Info

Publication number
CN113405170B
CN113405170B CN202110735200.1A CN202110735200A CN113405170B CN 113405170 B CN113405170 B CN 113405170B CN 202110735200 A CN202110735200 A CN 202110735200A CN 113405170 B CN113405170 B CN 113405170B
Authority
CN
China
Prior art keywords
temperature
heat dissipation
temperature rise
heat
heat sink
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
Application number
CN202110735200.1A
Other languages
Chinese (zh)
Other versions
CN113405170A (en
Inventor
卓森庆
李发顺
陈红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Original Assignee
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aux Air Conditioning Co Ltd, Ningbo Aux Electric Co Ltd filed Critical Aux Air Conditioning Co Ltd
Priority to CN202110735200.1A priority Critical patent/CN113405170B/en
Publication of CN113405170A publication Critical patent/CN113405170A/en
Application granted granted Critical
Publication of CN113405170B publication Critical patent/CN113405170B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • 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
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The application provides a method and a device for installing and detecting a heat dissipation device and an air conditioner, and relates to the technical field of air conditioners, wherein the method for installing and detecting the heat dissipation device comprises the steps of firstly obtaining the temperature of a heating device; when the temperature of the device to be heated is the same as the ambient temperature, controlling the heating device to operate at a preset power for a preset time; then determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device; the method comprises the steps of determining whether the heat dissipation device is abnormal or not according to the temperature rise, detecting the heat dissipation effect of the heat dissipation device, judging whether the heat dissipation device is abnormal or not according to the temperature rise, quantifying the monitoring and evaluation means by detecting the temperature rise of the power device within a certain time as the basis for judging the installation effect of the electric control radiating fin of the air conditioner outdoor unit, enhancing the reliability, and needing no extra hardware, thereby realizing the automatic detection of the installation fault of the heat dissipation device and saving manpower and material resources.

Description

Heat dissipation device installation detection method and device and air conditioner
Technical Field
The application relates to the technical field of air conditioners, in particular to a method and a device for installing and detecting a heat dissipation device and an air conditioner.
Background
The power device electrically controlled by the air conditioner external unit has high power and large heat generation, so a heat dissipation device needs to be installed, as shown in fig. 1. Generally, the production process and the maintenance process are affected by installation equipment, environment, irregular installation and the like, and the probability occurs such as improper installation of a fastener, uneven coating of a heat conducting agent and the like, so that the fitting degree of a heat dissipation device and a power device is poor, the heat dissipation efficiency is affected, and electric control burnout is caused. The current practice is to improve the installation qualification rate of the heat dissipation device by standardizing the installation process, using a torque wrench and other measures. This method still does not completely eliminate the above-mentioned hidden trouble.
Disclosure of Invention
The problem that this application was solved is, whether the installation of the outer quick-witted automatically controlled heat abstractor of current air conditioner only relies on the unable installation of confirming of naked eye unusual, whether the radiating effect is qualified.
In order to solve the above problems, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides a method for detecting a heat sink installation, where the method for detecting a heat sink installation is applied to a motor drive control device, where the motor drive control device includes a heating device, and the method for detecting a heat sink installation includes:
acquiring the temperature of a heating device;
controlling the heating device to operate at a preset power for a preset time;
determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device;
and determining whether the heat dissipation device is abnormally mounted according to the temperature rise.
The scheme that this application provided, the control device that generates heat is with certain length of the operation of predetermined power, then calculates the temperature rise according to current temperature and initial temperature, detects heat abstractor's radiating effect, judges whether heat abstractor installs unusually according to the temperature rise to can realize the automated inspection of heat abstractor installation trouble, the material resources of using manpower sparingly.
In an alternative embodiment, the step of determining whether the heat sink is abnormally mounted according to the temperature rise includes:
and when the temperature rise is in a first preset range, determining that the heat dissipation device is abnormally mounted, wherein the temperature value in the first preset range is greater than a first temperature threshold value.
The scheme that this application provided calculates the temperature rise according to current temperature and initial temperature, detects heat abstractor's radiating effect, judges whether heat abstractor installs unusually according to the temperature rise, if the temperature rise is in first preset scope, is greater than first temperature threshold, then confirms that the heat abstractor effect is relatively poor, and the heat abstractor installation is unusual.
In an alternative embodiment, the step of determining whether the heat sink is abnormally mounted according to the temperature rise includes:
and when the temperature rise is in a second preset range, determining that the heat dissipation device is normally installed, wherein the temperature value in the second preset range is lower than that in the first preset range.
The scheme that this application provided calculates the temperature rise according to current temperature and initial temperature, detects heat abstractor's radiating effect, judges whether heat abstractor installs unusually according to the temperature rise, if the temperature rise is in the second and predetermines the scope, is less than the temperature of first scope of predetermineeing, then confirms that heat abstractor effect is better, and heat abstractor installs normally.
In an alternative embodiment, the step of controlling the heat generating device to operate at a preset power for a preset time period includes:
and controlling the heating device to output the motor driving current with constant direction for a preset duration so as to enable the heating device to operate at a preset power.
In an optional embodiment, before controlling the heat generating device to operate at a preset power for a preset time period, the method further includes:
and determining that the temperature of the heat generating device is the same as the ambient temperature, and determining that the temperature of the heat generating device is the initial temperature when the temperature of the heat generating device is the same as the ambient temperature.
In a second aspect, the present application provides a heat sink installation detection device for performing the heat sink installation detection method according to any one of the preceding embodiments, the heat sink installation detection method including:
the acquisition module is used for acquiring the temperature of the heating device;
the processing module is used for controlling the heating device to operate for a preset time at a preset power;
the processing module is further used for determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device;
the processing module is also used for determining whether the heat dissipation device is abnormally installed or not according to the temperature rise.
In an optional embodiment, the processing module is configured to determine that the heat dissipation device is abnormally mounted when the temperature rise is within a first preset range; and when the temperature rise is in a second preset range, determining that the heat dissipation device is normally installed, wherein the temperature value in the second preset range is lower than that in the first preset range.
In an optional embodiment, the processing module is configured to control the heat generating device to output a motor driving current with a constant direction for a preset duration, so that the heat generating device operates at a preset power.
In an optional embodiment, the processing module is further configured to determine that the temperature of the heat generating device is the same as an ambient temperature, and determine that the temperature of the heat generating device is an initial temperature when the temperature of the heat generating device is the same as the ambient temperature.
In a third aspect, the present application provides an air conditioner comprising a controller configured to execute computer-readable program instructions, which, when executed by the controller, implement the steps of the heat sink installation detection method according to any one of the preceding embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a conventional heat sink;
FIG. 2 is a schematic diagram of a thermal resistance model;
fig. 3 is a functional block diagram of an air conditioner provided in an embodiment of the present application;
fig. 4 is a schematic flowchart of a method for detecting installation of a heat dissipation device according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart illustrating another method for detecting the installation of a heat dissipation device according to an embodiment of the present disclosure;
fig. 6 is a schematic flow chart illustrating another method for detecting the installation of a heat dissipation device according to an embodiment of the present disclosure;
fig. 7 is a schematic flowchart of another method for detecting installation of a heat dissipation device according to an embodiment of the present disclosure;
fig. 8 is a functional block diagram of a heat sink installation detection device according to an embodiment of the present application.
Description of reference numerals: 200-an air conditioner; 210-a controller; 300-a heat sink mounting detection device; 310-an acquisition module; 320-processing module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The power device electrically controlled by the air conditioner external unit has high power and large heat generation, so a heat dissipation device needs to be installed, as shown in fig. 1. Generally speaking, the production process and the maintenance process are affected by installation equipment, environment, irregular installation and the like, and if the fastener is installed in place or the heat conducting agent is smeared unevenly, the joint degree of the heat dissipation device and the power device is poor, the heat dissipation efficiency is affected, and electric control burnout is caused. The current practice is to improve the installation qualification rate of the heat dissipation device by standardizing the installation process, using a torque wrench and other measures. This method still does not completely eliminate the above-mentioned hidden trouble. From the product reliability, the installation qualification rate of the radiating fins is improved, the defective installation detectable rate is enhanced, and the method has important significance for the stable operation of the air conditioner. In view of the above problems, the present application provides a method for detecting the installation of a heat dissipation device, so as to detect whether the installation of the heat dissipation device of an air conditioner or other equipment is abnormal and whether the heat dissipation function is qualified.
Any heat dissipation process can be equivalent to a parallel model of thermal resistance and thermal capacitance, as shown in fig. 2: heat source P is equivalent to current source and thermal resistance RthAnd heat capacity CthEquivalent to resistance and capacitance, and the temperature difference Delta T is equivalent to potential difference and temperature T1、T2Equivalent to an electrical potential. Thus, under a constant heat source, the change in temperature difference over time can be expressed as: Δ t (t) ═ P Rth[1-e-t/τ]Where τ ═ RthCth。
From the above formula, it can be seen that the constant heat source and the thermal resistance are constant at a constant timeUnder the condition of unchanging value, the temperature rise value of the device is fixed and unchanged, and the temperature rise can fluctuate within a certain small range by considering that the actual device thermal resistance can be influenced by factors such as environment temperature and the like1And a temperature T 'after a fixed time T'1Obtaining the temperature rise change delta T of the device under the fixed time and the fixed heat source1＝T′1-T1By comparing Δ T1And judging whether the heat dissipation effect is small enough or not. Because, in the case where the heat sink is not mounted in place, the thermal resistance RthAnd heat capacity CthWill increase significantly resulting in Δ T1Becomes larger and therefore can be in accordance with Δ T1The change condition of the heat sink is detected and judged according to the installation condition of the heat sink.
In view of the above problems, the embodiment of the present invention provides an air conditioner 200, which is used for detecting and determining whether a heat dissipation device is installed normally while adjusting an indoor temperature. Referring to fig. 3, fig. 3 is a functional block diagram of an air conditioner 200 according to an embodiment of the present invention. The air conditioner 200 includes a controller 210, and the controller 210 can execute computer instructions to implement the heat sink installation detection method provided by the present invention. The heat sink installation detection device 300 provided by the present invention includes at least one software functional module that can be stored in the controller 210 in the form of software or firmware, for example, the software functional module can be directly burned in the storage space of the controller 210, and in another embodiment, the software functional module can also be stored in another independent storage medium and executed by the controller 210.
The controller 210 may be an integrated circuit chip having signal processing capabilities. The controller 210 may be a general-purpose processor including a Central Processing Unit (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic devices, discrete Gate or transistor logic devices, and discrete hardware components, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present invention, where the general-purpose processor may be a microprocessor, and the controller 210 provided in this embodiment may also be any conventional processor.
In a possible implementation manner, the air conditioner 200 includes at least one outdoor unit, the outdoor unit is provided with a motor driving control device and a motor, and the outdoor unit is further provided with at least one temperature sensor for detecting the temperature of the motor driving control device.
It will be appreciated that the configuration shown in fig. 3 is merely illustrative and that the air conditioner may include more or fewer components than shown in fig. 3 or may have a different configuration than shown in fig. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof.
Based on the above, an embodiment of the present application provides a method for detecting a heat dissipation device, please refer to fig. 4, and fig. 4 shows a flowchart of the method for detecting a heat dissipation device according to the embodiment of the present application, where the method for detecting a heat dissipation device includes S110 to S150.
S110: and acquiring the temperature of the heating device.
The heat generating device generally refers to a power device in an air conditioner or other equipment motor drive control device, but is not limited thereto, and may also be other devices having a heat generating characteristic, such as a heating wire. In a possible implementation manner, a temperature sensor is arranged at an electrode driving control device of an air conditioner and the like to detect and acquire the temperature of a heat generating device.
S120: and controlling the heating device to operate at preset power for a preset time.
In order to generate a stable constant-power heat source P, the heat dissipation effect of power devices such as IPM and the like can be utilized, when the power switch device works, conduction loss and switching loss can be generated, the loss can be dissipated to the surrounding environment through the radiating fins, the effect of cooling a semiconductor is achieved, in order to avoid the influence brought by the work of the compressor, the motor control device outputs current with unchanged direction to the compressor, and therefore the current for generating heat can be generated, and the work of the compressor can not be started.
S130: and determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device.
The heating device can generate heat to cause temperature rise in the process of running at preset power, meanwhile, the heat generated by the heating device can be dissipated to the surrounding environment such as air by the heat dissipation device, the temperature rise of the heating device is determined after the preset duration, and the temperature rise is the difference between the current temperature and the initial temperature of the heating device. And judging the heat dissipation effect of the heat dissipation device according to the temperature rise of the heating device.
S140: and determining whether the heat dissipation device is abnormally mounted according to the temperature rise.
Detecting whether the heat dissipation effect is sufficient or not according to the temperature rise change of the heating device before and after the heating device operates at preset power for a preset time, so as to judge whether the installation of the heat dissipation device meets the requirement or not, and if the temperature rise is large, the heat dissipation effect of the heat dissipation device is poor, and the heat dissipation device is possibly abnormally installed; if the temperature rise is small, the heat dissipation effect of the heat dissipation device is good, and the heat dissipation device is normally installed.
The scheme that this application provided, the control device that generates heat is with certain length of the operation of predetermined power, then calculates the temperature rise according to current temperature and initial temperature, detects heat abstractor's radiating effect, judges whether heat abstractor installs unusually according to the temperature rise to can realize the automated inspection of heat abstractor installation trouble, the material resources of using manpower sparingly.
In an alternative embodiment, referring to fig. 5, the step S140 of determining whether the heat sink is abnormally mounted according to the temperature rise includes the following substeps: s140-1 to S140-2.
S140-1: and when the temperature rise is in a first preset range, determining that the heat dissipation device is abnormally mounted, wherein the temperature value in the first preset range is greater than a first temperature threshold value.
The method comprises the steps of calculating temperature rise according to current temperature and initial temperature, detecting the heat dissipation effect of the heat dissipation device, judging whether the heat dissipation device is abnormal or not according to the temperature rise, if the temperature rise is in a first preset range, the temperature value of the first preset range is larger than a first temperature threshold value, and under the condition that the temperature rise is in the first preset range, determining that the effect of the heat dissipation device is poor and the heat dissipation device is abnormal.
S140-2: and when the temperature rise is in a second preset range, determining that the heat dissipation device is normally installed, wherein the temperature value in the second preset range is lower than that in the first preset range.
Calculating the temperature rise according to the current temperature and the initial temperature, detecting the heat dissipation effect of the heat dissipation device, judging whether the installation of the heat dissipation device is abnormal or not according to the temperature rise, if the temperature rise is in a second preset range, the temperature of the second preset range is lower than the temperature of the first preset range, and if the temperature rise is in the second preset range, determining that the heat dissipation effect of the heat dissipation device is good and the heat dissipation device is normally installed.
Referring to fig. 6, in an alternative embodiment, S120 includes the following sub-steps:
s120-1: and controlling the heating device to output the motor driving current with constant direction for a preset duration so as to enable the heating device to operate at a preset power.
In general, the motor drive control device is designed to reduce heat loss as much as possible and improve energy conversion efficiency, so that heat dissipation is small, and it is difficult to achieve the above-described heat generation effect. In order to increase heat dissipation and output enough and constant-power heat, the current of the motor and the IPM switching frequency can be controlled under the condition that the air conditioner does not work, so that the constant-power heat source of the power device is realized in a simulated mode, and the purpose of detecting the temperature rise of the radiator is achieved.
In order to avoid the influence brought by the work of the motor, the motor drive control device outputs current with a direction unchanged to the motor and lasts for preset time, so that the current for generating heat can be generated, and the motor cannot be started to work. The preset time period may be set to 20 seconds, but is not limited thereto, and a longer time period may also be set, but it should be noted that it is necessary to prevent the device from being damaged due to too long time and too large heat generation.
In an alternative embodiment, referring to fig. 7, before step S120, the method for detecting the installation of the heat dissipation device further includes:
and S111, determining that the temperature of the heating device is the same as the ambient temperature, and determining the temperature of the heating device as the initial temperature when the temperature of the heating device is the same as the ambient temperature.
The heat can be spontaneously transmitted from a high-temperature object to a low-temperature object, so that in order to avoid misjudgment, the heating device needs to be controlled to heat under the condition that the temperature of the heating device is the same as the ambient temperature, if the temperature of the heating device is higher than the ambient temperature, the temperature of the heating device at the starting point (namely the ambient temperature at the moment) is determined as the initial temperature of the heating device by taking the starting point as a waiting time after the heating device is cooled to the ambient temperature, then the heating device is controlled to operate at preset power for a preset time, the temperature rise of the heating device is determined according to the current temperature and the initial temperature, and whether the installation of the heat dissipation device is abnormal or not is detected and judged according to the temperature rise.
After determining that the heat dissipation device is abnormally mounted, please continue to refer to fig. 7, in which the method for detecting the mounting of the heat dissipation device according to the embodiment of the present application further includes:
s150: and sending prompt information of abnormal installation of the heat dissipation device.
In a possible implementation manner, taking the air conditioner as an example, if the heat dissipation device of the outdoor unit is abnormally installed, the display module of the indoor unit sends a prompt message of abnormal installation of the heat dissipation device to prompt a user that the abnormal installation of the heat dissipation device of the outdoor unit may affect the operation of the air conditioner.
In other possible implementation manners, a prompt message may be sent to the terminal of the user to prompt that the installation of the heat dissipation device of the outdoor unit of the user is abnormal, which may affect the operation of the air conditioner and require to remove the fault as soon as possible.
In an actual implementation process, taking the 1.5P outdoor unit of the home air conditioner as an example, the motor driving control device IPM of the 1.5P outdoor unit of the home air conditioner generates about 20W of dissipation power at a rated current, and the value is hardly affected by the environment. Under the above conditions, the IPM temperature rise measured for 20s of operation is about 30 ℃.
In order to simulate the installation fault of the radiating fin, a single screw of the radiating fin is unscrewed, and the process is repeated, so that the IPM temperature rise can be measured to be about 45 ℃ and greatly exceeds a normal value, and the IPM temperature rise can be used as a detection basis for the installation radiating effect of the radiating fin. And the installation condition of the heat dissipation device is judged according to the temperature rise detection before and after the heating device.
According to the installation detection method of the heat dissipation device, the temperature of a heating device is obtained firstly; when the temperature of the device to be heated is the same as the ambient temperature, controlling the heating device to operate at a preset power for a preset time; then determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device; and determining whether the heat dissipation device is abnormally mounted according to the temperature rise, detecting the heat dissipation effect of the heat dissipation device, and judging whether the heat dissipation device is abnormally mounted according to the temperature rise, so that the automatic detection of the mounting fault of the heat dissipation device can be realized, and manpower and material resources are saved.
In order to execute the corresponding steps in the above embodiments and various possible embodiments, an implementation of a heat sink installation detection device is given below, please refer to fig. 8, and fig. 8 is a heat sink installation detection device 300 according to a preferred embodiment of the present invention. It should be noted that the basic principle and the generated technical effect of the heat sink installation detection device 300 provided in the present embodiment are substantially the same as those of the heat sink installation detection method provided in the above embodiment, and for the sake of brief description, corresponding contents in the above embodiment may be referred to for parts that are not mentioned in the present embodiment.
The heat sink mounting and detecting device 300 provided by the present application includes: an acquisition module 310 and a processing module 320.
The obtaining module 310 is configured to obtain a temperature of the heat generating device. In a possible implementation manner, a temperature sensor is arranged at an electrode driving control device of an air conditioner and the like to detect and acquire the temperature of a heat generating device.
It is to be understood that, in one possible implementation manner, the obtaining module 310 may be configured to execute S110 in the above-mentioned figures to achieve the corresponding technical effect.
And the processing module 320 is configured to determine that the temperature of the heat generating device is the same as the ambient temperature, and determine that the temperature of the heat generating device is the initial temperature when the temperature of the heat generating device is the same as the ambient temperature. Since heat is spontaneously transferred from a high-temperature object to a low-temperature object, it is necessary to control the heat generating device to generate heat when the temperature of the heat generating device is equal to the ambient temperature in order to avoid erroneous determination.
It is to be understood that, in one possible implementation manner, the processing module 320 may be configured to execute S111 in the above-mentioned figures to achieve the corresponding technical effect.
When the temperature of the heat generating device is the same as the ambient temperature, the processing module 320 is further configured to control the heat generating device to operate at a preset power for a preset time. In order to generate a stable constant-power heat source P, the heat dissipation effect of power devices such as IPM and the like can be utilized, when the power switch device works, conduction loss and switching loss can be generated, the loss can be dissipated to the surrounding environment through the radiating fins, the effect of cooling a semiconductor is achieved, in order to avoid the influence brought by the work of the compressor, the motor control device outputs current with unchanged direction to the compressor, and therefore the current for generating heat can be generated, and the work of the compressor can not be started.
It is to be understood that, in one possible implementation, the processing module 320 may be configured to execute S120 in the above-mentioned figures to achieve the corresponding technical effect.
The processing module 320 is further configured to determine a temperature rise of the heat generating device, where the temperature rise is a difference between a current temperature and an initial temperature of the heat generating device. Whether the heat dissipation effect is enough is detected according to the temperature rise change of the heating device before and after the heating device operates for the preset time with the preset power, so that whether the installation of the heat dissipation device meets the requirement is judged.
It is to be understood that, in one possible implementation, the processing module 320 may be configured to execute S130 in the above-mentioned figures to achieve the corresponding technical effect.
The processing module 320 is further configured to determine whether the heat sink is abnormally mounted according to the temperature rise. The processing module 320 detects whether the heat dissipation effect is sufficient according to the temperature rise change of the heating device before and after the heating device operates at the preset power for the preset time, so as to determine whether the installation of the heat dissipation device meets the requirement, if the temperature rise is large, for example, under the condition of being in a first preset range, it is determined that the installation of the heat dissipation device is abnormal, and the temperature value of the first preset range is greater than a first temperature threshold value; the heat dissipation effect of the heat dissipation device is poor, and the heat dissipation device is possibly abnormally installed; if the temperature rise is smaller and the temperature rise is within the second preset range, the heat dissipation device is determined to be normally installed, and the temperature value within the second preset range is lower than the temperature value within the first preset range, so that the heat dissipation effect of the heat dissipation device is better, and the heat dissipation device is normally installed.
It is to be understood that, in one possible implementation, the processing module 320 may be configured to execute S140 in the above-mentioned figures to achieve the corresponding technical effect.
The processing module 320 is further configured to send a prompt message indicating that the heat sink is abnormally installed when it is determined that the heat sink is abnormally installed.
It is to be understood that, in one possible implementation, the processing module 320 may be configured to execute S150 in the above-mentioned figures to achieve the corresponding technical effect.
In summary, the present application provides a method and a device for detecting the installation of a heat dissipation device, and an air conditioner, wherein the method for detecting the installation of a heat dissipation device first obtains the temperature of a heating device; when the temperature of the device to be heated is the same as the ambient temperature, controlling the heating device to operate at a preset power for a preset time; then determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device; the method comprises the steps of determining whether the heat dissipation device is abnormal or not according to the temperature rise, detecting the heat dissipation effect of the heat dissipation device, judging whether the heat dissipation device is abnormal or not according to the temperature rise, quantifying the monitoring and evaluation means by detecting the temperature rise of the power device within a certain time as the basis for judging the installation effect of the electric control radiating fin of the air conditioner outdoor unit, enhancing the reliability, and needing no extra hardware, thereby realizing the automatic detection of the installation fault of the heat dissipation device and saving manpower and material resources.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules 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 removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. A method for detecting the installation of a heat sink is applied to a motor drive control device, the motor drive control device comprises a heating device, and the method for detecting the installation of the heat sink comprises the following steps:
acquiring the temperature of a heating device;
controlling the heating device to operate at a preset power for a preset time;
determining the temperature rise of the heating device, wherein the temperature rise is the difference between the current temperature and the initial temperature of the heating device;
determining whether the heat dissipation device is abnormally mounted according to the temperature rise;
the step of controlling the heating device to operate at a preset power for a preset time period includes:
and controlling the heating device to output the motor driving current with constant direction for a preset duration so as to enable the heating device to operate at a preset power.
2. The heat sink mounting detection method according to claim 1, wherein the step of determining whether the heat sink is abnormally mounted according to the temperature rise includes:
and when the temperature rise is in a first preset range, determining that the heat dissipation device is abnormally mounted, wherein the temperature value in the first preset range is greater than a first temperature threshold value.
3. The heat sink mounting detection method according to claim 2, wherein the step of determining whether the heat sink is abnormally mounted according to the temperature rise includes:
and when the temperature rise is in a second preset range, determining that the heat dissipation device is normally installed, wherein the temperature value in the second preset range is lower than that in the first preset range.
4. The heat sink installation detection method according to claim 1, wherein before controlling the heat generating device to operate at a preset power for a preset time period, further comprising:
and determining that the temperature of the heat generating device is the same as the ambient temperature, and determining that the temperature of the heat generating device is the initial temperature when the temperature of the heat generating device is the same as the ambient temperature.
5. A heat sink mounting detection device (300), the heat sink mounting detection device (300) being configured to perform the heat sink mounting detection method according to any one of claims 1 to 4, the heat sink mounting detection method comprising:
an acquisition module (310) for acquiring the temperature of the heat generating device;
a processing module (320) for controlling the heat generating device to operate at a preset power for a preset duration;
the processing module (320) is further configured to determine a temperature rise of the heat generating device, where the temperature rise is a difference between a current temperature and an initial temperature of the heat generating device;
the processing module (320) is also used for determining whether the heat dissipation device is abnormally installed or not according to the temperature rise;
the processing module (320) is used for controlling the heating device to output motor driving current with constant direction for a preset duration so as to enable the heating device to operate at a preset power.
6. The heat sink mounting detection device (300) according to claim 5, wherein the processing module (320) is configured to determine that the heat sink is abnormally mounted when the temperature rise is within a first preset range; and when the temperature rise is in a second preset range, determining that the heat dissipation device is normally installed, wherein the temperature value in the second preset range is lower than that in the first preset range.
7. The heat sink mounting detection device (300) according to claim 5, wherein the processing module (320) is further configured to determine that the temperature of the heat generating component is the same as an ambient temperature, and determine that the temperature of the heat generating component is an initial temperature when the temperature of the heat generating component is the same as the ambient temperature.
8. An air conditioner (200), characterized in that the air conditioner (200) comprises a controller (210), the controller (210) is configured to execute computer-readable program instructions, the computer-readable program instructions, when executed by the controller (210), implement the steps of the heat sink installation detection method according to any one of claims 1 to 4.
CN202110735200.1A 2021-06-30 2021-06-30 Heat dissipation device installation detection method and device and air conditioner Active CN113405170B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110735200.1A CN113405170B (en) 2021-06-30 2021-06-30 Heat dissipation device installation detection method and device and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110735200.1A CN113405170B (en) 2021-06-30 2021-06-30 Heat dissipation device installation detection method and device and air conditioner

Publications (2)

Publication Number Publication Date
CN113405170A CN113405170A (en) 2021-09-17
CN113405170B true CN113405170B (en) 2022-04-19

Family

ID=77680422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110735200.1A Active CN113405170B (en) 2021-06-30 2021-06-30 Heat dissipation device installation detection method and device and air conditioner

Country Status (1)

Country Link
CN (1) CN113405170B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103777095A (en) * 2010-06-01 2014-05-07 发那科株式会社 Abnormality inspection system of cooling unit in electronic circuit
CN103954022A (en) * 2014-04-09 2014-07-30 美的集团股份有限公司 Temperature-detection protective device and air conditioner
CN105470215A (en) * 2014-09-30 2016-04-06 三菱电机株式会社 Cooling-abnormality detecting system
JP2019184150A (en) * 2018-04-09 2019-10-24 ダイキン工業株式会社 Air conditioner
CN110425711A (en) * 2019-09-05 2019-11-08 宁波奥克斯电气股份有限公司 A kind of temprature control method of intelligent power module, device and air conditioner
CN112082250A (en) * 2020-08-12 2020-12-15 珠海格力电器股份有限公司 Air conditioner installation state detection method and device, storage medium and air conditioner
CN112212458A (en) * 2020-08-17 2021-01-12 珠海格力电器股份有限公司 Electric cabinet safety control device and method and electrical equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103777095A (en) * 2010-06-01 2014-05-07 发那科株式会社 Abnormality inspection system of cooling unit in electronic circuit
CN103954022A (en) * 2014-04-09 2014-07-30 美的集团股份有限公司 Temperature-detection protective device and air conditioner
CN105470215A (en) * 2014-09-30 2016-04-06 三菱电机株式会社 Cooling-abnormality detecting system
JP2019184150A (en) * 2018-04-09 2019-10-24 ダイキン工業株式会社 Air conditioner
CN110425711A (en) * 2019-09-05 2019-11-08 宁波奥克斯电气股份有限公司 A kind of temprature control method of intelligent power module, device and air conditioner
CN112082250A (en) * 2020-08-12 2020-12-15 珠海格力电器股份有限公司 Air conditioner installation state detection method and device, storage medium and air conditioner
CN112212458A (en) * 2020-08-17 2021-01-12 珠海格力电器股份有限公司 Electric cabinet safety control device and method and electrical equipment

Also Published As

Publication number Publication date
CN113405170A (en) 2021-09-17

Similar Documents

Publication Publication Date Title
CN111398766B (en) IGBT module health state online monitoring method and system
EP1850438A2 (en) Protection device for load circuits
TWI402524B (en) Method for predicting fan life-span
US7962306B2 (en) Detecting an increase in thermal resistance of a heat sink in a computer system
WO2019192211A1 (en) Abnormality prompting method and intelligent socket
JP2007028741A (en) Power converter and its management system
CN106679076B (en) Temperature control method and control device for frequency converter power module
US9399997B2 (en) Method for detecting heat-dissipating air flow and electronic device using the same
CN109084409B (en) Detection system for preventing over-temperature rise of air conditioner device, detection control method and air conditioner
CN107084148A (en) A kind of fan control device, system and method
CN113405170B (en) Heat dissipation device installation detection method and device and air conditioner
CN112904255A (en) Method and device for determining fault of current sensor
CN115891730A (en) Heat dissipation control method and system of charging pile and charging pile
CN113870906B (en) Anti-condensation temperature control method, system and circuit control board
KR101531018B1 (en) Failure prediction method of power semiconductor device
CN113418273A (en) Electrical heating relay thermal fault detection method and air conditioner
CN112729610A (en) Power equipment temperature data remote monitoring system and method based on Internet of things
CN116698198A (en) Temperature monitoring system and temperature monitoring method thereof
CN116520111A (en) Arc fault detection method and detection system for photovoltaic inverter
CN110442002B (en) Fixing device and laser printer using the same
CN111882835A (en) Fault early warning method and device of inverter and computer readable storage medium
CN115600423A (en) Motor controller service life assessment method
CN114325281B (en) Fault detection method and device based on refrigerating sheet and computer readable storage medium
CN111796647B (en) Detection method and electronic equipment
CN112649119A (en) Motor temperature detection method and device

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