CN114636238B - Motor temperature rise control method - Google Patents
Motor temperature rise control method Download PDFInfo
- Publication number
- CN114636238B CN114636238B CN202210410400.4A CN202210410400A CN114636238B CN 114636238 B CN114636238 B CN 114636238B CN 202210410400 A CN202210410400 A CN 202210410400A CN 114636238 B CN114636238 B CN 114636238B
- Authority
- CN
- China
- Prior art keywords
- temperature
- value
- preset
- motor
- air
- 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
Classifications
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a motor temperature rise control method. The motor temperature rise control method comprises the following steps: acquiring the surface temperature T of a motor and the initial air outlet temperature T at an air outlet of an air conditioner 0 The method comprises the steps of carrying out a first treatment on the surface of the Judging the relation between the surface temperature T and a first preset temperature value A, and if the surface temperature T is greater than or equal to the first preset temperature value A, controlling the rotating speed r of the motor to reduce a preset rotating speed value delta r; if the surface temperature T is smaller than the first preset temperature value A, obtaining the air outlet temperature T at the air outlet 1 And the initial air outlet temperature T 0 The temperature difference value between the two air conditioning units increases the air output of the air conditioning units or maintains the current air output according to the temperature difference value; judging the relative position of the motor in the air conditioner, and adjusting the value of a preset rotating speed value delta r according to the relative position and/or the running mode of the air conditioner; the operation modes include a cooling mode and a heating mode. The invention effectively solves the problem of overhigh temperature rise of the motor in the running process in the prior art.
Description
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to a motor temperature rise control method.
Background
At present, a motor is usually arranged in an air conditioner, and a driving torque is generated by the motor to provide a power source for fan blades of the air conditioner so as to enable the fan blades to normally operate.
However, in the operation process of the air conditioner, the motor can generate a large amount of heat, so that the service life of the motor is shortened due to overhigh temperature rise of the motor, the use safety of the air conditioner is even affected, the operation efficiency of the motor is also reduced, and the heat exchange efficiency of the air conditioner is also affected.
Disclosure of Invention
The invention mainly aims to provide a motor temperature rise control method which is used for solving the problem that the temperature rise of a motor in the running process is too high in the prior art.
In order to achieve the above object, the present invention provides a motor temperature rise control method, including: acquiring the surface temperature T of a motor and the initial air outlet temperature T at an air outlet of an air conditioner 0 The method comprises the steps of carrying out a first treatment on the surface of the Judging the relation between the surface temperature T and a first preset temperature value A, and if the surface temperature T is greater than or equal to the first preset temperature value A, controlling the rotating speed r of the motor to reduce a preset rotating speed value delta r; if the surface temperature T is smaller than the first preset temperature value A, obtaining the air outlet temperature T at the air outlet 1 And the initial air outlet temperature T 0 The temperature difference value between the two air conditioning units increases the air output of the air conditioning units or maintains the current air output according to the temperature difference value; judging the relative position of the motor in the air conditioner, and adjusting the value of a preset rotating speed value delta r according to the relative position and/or the running mode of the air conditioner; the operation modes include a cooling mode and a heating mode.
Further, the method for increasing the air output of the air conditioner or maintaining the current air output according to the temperature difference value comprises the following steps: if the temperature difference value is greater than or equal to a second preset temperature value B, increasing the air output of the air conditioner; if the temperature difference value is smaller than a second preset temperature value B, controlling the air conditioner to maintain the current air output; wherein the second preset temperature value B is more than or equal to 3 ℃ and less than or equal to 6 ℃.
Further, the method for increasing the air output of the air conditioner comprises the following steps: the air deflector of the air conditioner is controlled to rotate by a preset air outlet angle so as to increase the air outlet quantity of the air conditioner.
Further, the method for judging the relative position of the motor in the air conditioner comprises the following steps: judgingA height relationship between the motor and a reference surface S of the air conditioner; wherein the reference plane S is at a height H 1 The overall height H of the air conditioner is as follows: h 1 ＝1/2H。
Further, the method for adjusting the preset rotation speed value deltar according to the relative position and/or the operation mode of the air conditioner comprises the following steps: if the motor is positioned above the reference surface S, adjusting the value of a preset rotating speed value delta r according to the running mode of the air conditioner; if the motor is positioned below the reference plane S, the preset rotation speed value Deltar is unchanged.
Further, the method for adjusting the preset rotation speed value deltar according to the operation mode of the air conditioner comprises the following steps: if the air conditioner is in the cooling mode, the preset rotating speed value delta r is set as a first preset value r 1 The method comprises the steps of carrying out a first treatment on the surface of the If the air conditioner is in the heating mode, the preset rotating speed value delta r is set as a second preset value r 2 The method comprises the steps of carrying out a first treatment on the surface of the Wherein the second preset value r 2 Is greater than a first preset value r 1 。
Further, a second preset value r 2 And a first preset value r 1 The following are satisfied: r is (r) 1 ＜r 2 ≤3r 1 。
Further, after the rotating speed r of the motor is controlled to be reduced by a preset rotating speed value delta r, the surface temperature T is obtained in real time, and if the surface temperature T is larger than or equal to a first preset temperature value A, the rotating speed r of the motor is controlled to be reduced by the preset rotating speed value delta r until the surface temperature T is smaller than the first preset temperature value A.
Further, when the surface temperature T is smaller than the first preset temperature value A, obtaining the air outlet temperature T at the air outlet at the moment 1 And judging the air outlet temperature T 1 And the initial air outlet temperature T 0 Temperature difference value between them.
Further, the surface temperature T is obtained through the first temperature detection device, and when the surface temperature T is smaller than a first preset temperature value A, the rotating speed sensor of the air conditioner is controlled to detect the current rotating speed r of the motor 0 Controlling the second temperature detection device to obtain the air outlet temperature T at the air outlet at the moment 1 Judging the temperature T of the air outlet 1 And the initial air outlet temperature T 0 Temperature difference value between them.
Further, the surface temperature T is obtained through the first temperature detection device, the rotating speed r of the motor is detected through the rotating speed sensor of the air conditioner at intervals of preset time, and the air outlet temperature T is obtained through the second temperature detection device of the air conditioner at intervals of preset time 1 When the surface temperature T is smaller than the first preset temperature value A, the current rotating speed r of the motor is obtained 0 Simultaneously obtain the air outlet temperature T 1 Judging the temperature T of the air outlet 1 And the initial air outlet temperature T 0 Temperature difference value between them.
By applying the technical scheme of the invention, the surface temperature T of the motor and the initial air outlet temperature T at the air outlet of the air conditioner are obtained in real time 0 The rotating speed r of the motor is adjusted according to the relation between the surface temperature T and the first preset temperature value A, so that the surface temperature T of the motor is reduced by reducing the rotating speed r of the motor. The reduction value (preset rotation speed value delta r) of the rotation speed r is adjusted according to the relative position of the motor in the air conditioner and/or the running mode of the air conditioner, so that the motor is quickly cooled on the premise that the normal running of the air conditioner is not affected, the problem that the temperature of the motor is too high in the running process in the prior art is solved, the surface temperature T of the motor is ensured to be smaller than a first preset temperature value A, the service life of the motor is prolonged, and the energy consumption of the air conditioner is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram showing a structure of a motor located above a reference surface S in a first embodiment of a motor temperature rise control method according to the present invention;
FIG. 2 shows a control flow diagram of the motor temperature rise control method of FIG. 1;
fig. 3 is a schematic diagram showing a structure of a motor located below a reference surface S in a second embodiment of a motor temperature rise control method according to the present invention.
Wherein the above figures include the following reference numerals:
10. and a motor.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
In order to solve the problem that the temperature of a motor is too high in the operation process in the prior art, the application provides a motor temperature rise control method.
Example 1
As shown in fig. 1 and 2, the motor temperature rise control method includes:
acquiring the surface temperature T of the motor 10 and the initial air outlet temperature T at the air outlet of the air conditioner 0 ；
Judging the relation between the surface temperature T and the first preset temperature value A, and if the surface temperature T is greater than or equal to the first preset temperature value A, controlling the rotating speed r of the motor 10 to reduce by a preset rotating speed value delta r; if the surface temperature T is smaller than the first preset temperature value A, obtaining the air outlet temperature T at the air outlet 1 And the initial air outlet temperature T 0 The temperature difference value between the two air conditioning units increases the air output of the air conditioning units or maintains the current air output according to the temperature difference value;
the relative position of the motor 10 in the air conditioner is determined, and the value of the preset rotation speed value deltar is adjusted according to the relative position and/or the operation mode of the air conditioner. The operation modes include a cooling mode and a heating mode.
By applying the technical scheme of the embodiment, the surface temperature T of the motor 10 and the initial air outlet temperature T at the air outlet of the air conditioner are obtained in real time 0 The rotational speed r of the motor is adjusted according to the relation between the surface temperature T and the first preset temperature value a to reduce the surface temperature T of the motor 10 by reducing the rotational speed r of the motor 10. The reduction value (preset rotation speed value deltar) of the rotation speed r is adjusted according to the relative position of the motor 10 in the air conditioner and/or the running mode of the air conditioner, so that the rapid cooling of the motor 10 is realized on the premise of not affecting the normal running of the air conditioner, the problem that the temperature of the motor is too high in the running process in the prior art is solved, the surface temperature T of the motor 10 is ensured to be smaller than a first preset temperature value A, the service life of the motor 10 is prolonged, and the energy consumption of the air conditioner is reduced.
In this embodiment, the first preset temperature value a is between 120 ℃ and 150 ℃.
In this embodiment, the rotation speed r of the motor 10 is detected and adjusted in real time, so that the surface temperature T of the motor 10 is reduced while the air conditioner perception is not affected by the user, and further the loss of the air conditioner is reduced, meanwhile, the overheat loss of the motor can be prevented, and the service life of the motor 10 is prolonged.
Optionally, the method for increasing the air output of the air conditioner or maintaining the current air output according to the temperature difference value comprises the following steps:
if the temperature difference value is greater than or equal to a second preset temperature value B, increasing the air output of the air conditioner;
and if the temperature difference value is smaller than the second preset temperature value B, controlling the air conditioner to maintain the current air output. Wherein the second preset temperature value B is more than or equal to 3 ℃ and less than or equal to 6 ℃.
Specifically, if the outlet air temperature T 1 If the temperature difference value between the air conditioner and the second preset temperature value B is larger than or equal to the second preset temperature value B, judging the air outlet temperature T of the air conditioner at the moment 1 When a large deviation occurs, the deviation is compensated by increasing the air output; if the air outlet temperature T 1 Judging if the temperature difference value between the first preset temperature value B and the second preset temperature value B is smaller than the second preset temperature value BThe temperature reduction of the motor does not affect the air outlet temperature T of the air conditioner 1 The air outlet of the air conditioner does not need to be adjusted.
In this embodiment, the second preset temperature value B is 4 ℃.
It should be noted that the value of the second preset temperature value B is not limited to this, and may be adjusted according to the working condition and the use requirement. Alternatively, the second preset temperature value B is 3.5 ℃, or 3.8 ℃, or 4.5 ℃, or 4.8 ℃, or 5 ℃, or 5.5 ℃, or 5.8 ℃.
Optionally, the method for increasing the air output of the air conditioner comprises the following steps:
the air deflector of the air conditioner is controlled to rotate by a preset air outlet angle so as to increase the air outlet quantity of the air conditioner.
Specifically, the control system of the air conditioner controls the air deflector to rotate so as to increase the air output at the air deflector, thereby realizing the air output temperature T of the air conditioner 1 Until the temperature difference is less than the second preset temperature value B.
In this embodiment, the control system controls the air deflector to rotate to the position of the maximum air outlet angle, so that the air conditioner performs air outlet with the maximum air outlet amount, and rapid compensation of the temperature difference is realized.
In the present embodiment, the method of determining the relative position of the motor 10 in the air conditioner includes:
judging the height relation between the motor 10 and the reference surface S of the air conditioner; wherein the reference plane S is at a height H 1 The overall height H of the air conditioner is as follows: h 1 ＝1/2H。
Specifically, the relative position of the motor 10 in the air conditioner is determined by the height position relationship between the motor 10 and the reference surface S, so that the determination of the relative position of the motor 10 is easier and simpler, and the determination accuracy is improved.
Optionally, the method for adjusting the preset rotation speed value deltar according to the relative position and/or the operation mode of the air conditioner comprises the following steps:
if the motor 10 is positioned above the reference surface S, adjusting the value of a preset rotating speed value delta r according to the running mode of the air conditioner;
if the motor 10 is located below the reference surface S, the preset rotation speed Δr is unchanged.
Specifically, if the motor 10 is above the reference plane S, different operation modes of the air conditioner are in one-to-one correspondence with different preset rotation speed values Δr, so as to rapidly cool the motor 10. If the motor 10 is located below the reference surface S, the preset rotation speed Δr is always unchanged no matter what operation mode the air conditioner is in, so that the adjustment difficulty of the motor rotation speed r is reduced.
In this embodiment, the motor 10 is located above the reference plane S, so that the internal structure layout of the air conditioner is more reasonable and compact, and the internal space utilization rate of the air conditioner is improved.
In this embodiment, the method for adjusting the preset rotation speed Δr according to the operation mode of the air conditioner includes:
if the air conditioner is in the cooling mode, the preset rotating speed value delta r is set as a first preset value r 1 ；
If the air conditioner is in the heating mode, the preset rotating speed value delta r is set as a second preset value r 2 The method comprises the steps of carrying out a first treatment on the surface of the Wherein the second preset value r 2 Is greater than a first preset value r 1 。
Specifically, the motor 10 is located above the reference surface S, and when the air conditioner is in the cooling mode, the rotation speed r of the motor is controlled to be reduced by a first preset value r 1 If the surface temperature T of the motor 10 after the deceleration is still greater than or equal to the first preset temperature value a, the motor 10 is controlled to continue to decelerate until the surface temperature T of the motor 10 is less than the first preset temperature value a. When the air conditioner is in the heating mode, the rotating speed r of the motor is controlled to be reduced by a second preset value r 2 If the surface temperature T of the motor 10 after the deceleration is still greater than or equal to the first preset temperature value a, the motor 10 is controlled to continue to decelerate until the surface temperature T of the motor 10 is less than the first preset temperature value a.
Optionally, a second preset value r 2 And a first preset value r 1 The following are satisfied: r is (r) 1 ＜r 2 ≤3r 1 。
In the present embodiment, r 1 10r/min, r 2 The speed of the reaction is 20r/min,r 2 ＝2r 1 . The second preset value r 2 And a first preset value r 1 The numerical relation between the two can be adjusted according to working conditions and use requirements. Alternatively, r 2 ＝1.2r 1 Or r 2 ＝1.5r 1 Or r 2 ＝1.8r 1 。
In this embodiment, after the rotation speed r of the motor 10 is controlled to be reduced by a preset rotation speed value Δr, the surface temperature T is obtained in real time, and if the surface temperature T is greater than or equal to the first preset temperature value a, the rotation speed r of the motor 10 is controlled to be reduced by the preset rotation speed value Δr until the surface temperature T is less than the first preset temperature value a.
In this embodiment, when the surface temperature T is smaller than the first preset temperature value a, the air outlet temperature T at the air outlet at this time is obtained 1 And judging the air outlet temperature T 1 And the initial air outlet temperature T 0 Temperature difference value between them.
In the present embodiment, the surface temperature T is obtained by the first temperature detecting device, and when the surface temperature T is smaller than the first preset temperature value a, the rotation speed sensor of the air conditioning device is controlled to detect the current rotation speed r of the motor 10 0 Controlling the second temperature detection device to obtain the air outlet temperature T at the air outlet at the moment 1 Judging the temperature T of the air outlet 1 And the initial air outlet temperature T 0 Temperature difference value between them.
The rotation speed sensor for controlling the air conditioner detects the current rotation speed r of the motor 10 0 And controlling the second temperature detection device to obtain the air outlet temperature T 1 The mode of (a) is not limited to the above, and can be adjusted according to working conditions and use requirements.
In other embodiments not shown in the drawings, the surface temperature T is obtained by a first temperature detecting means, the rotation speed r of the motor 10 is detected by a rotation speed sensor of the air conditioning device at every preset time, and the outlet air temperature T is obtained by a second temperature detecting means of the air conditioning device at preset time 1 When the surface temperature T is smaller than the first preset temperature value A, the current rotating speed r of the motor 10 is obtained 0 Simultaneously obtain the air outlet temperature T 1 Judging the temperature T of the air outlet 1 With initial air-out temperatureDegree T 0 Temperature difference value between them.
Specifically, when the air conditioner is in the cooling mode, the motor 10 reaches the stable rotation speed r according to the control system and the user demand, and the temperature at the air outlet is the initial air outlet temperature T 0 . When the surface temperature T of the motor 10 is detected to be more than or equal to 120 ℃, the rotating speed r of the motor is controlled to be reduced by 10r/min, the surface temperature T is detected in real time while the rotating speed is reduced, if the surface temperature T is still more than or equal to 120 ℃, the rotating speed r is correspondingly reduced by 10r/min, the cycle is performed until the surface temperature T is less than 120 ℃, and the current rotating speed r of the motor is output at the moment 0 At the output current rotation speed r 0 Simultaneously detecting the air outlet temperature T at the air outlet 1 If the temperature difference T between them 1 -T 0 If the temperature is more than or equal to 4 ℃, the air deflector is controlled to be opened to the position of the maximum air outlet, and if the temperature difference value T of the air deflector and the air deflector is larger than or equal to the temperature difference value T of the maximum air outlet 1 -T 0 The position of the air deflector is unchanged according to the set position of the user when the temperature is lower than 4 ℃.
In the heating mode of the air conditioner, the surface temperature T of the motor after the motor operates is higher than that of the motor during refrigeration, so that the reduced rotation speed of the motor is larger than that of the motor during refrigeration setting. When the surface temperature T of the motor 10 is detected to be more than or equal to 120 ℃, the rotating speed r of the motor is controlled to be reduced by 20r/min, the surface temperature T is detected in real time while the rotating speed is reduced, if the surface temperature T is still more than or equal to 120 ℃, the rotating speed r is correspondingly reduced by 20r/min, the cycle is performed until the surface temperature T is less than 120 ℃, and the current rotating speed r of the motor is output at the moment 0 At the output current rotation speed r 0 Simultaneously detecting the air outlet temperature T at the air outlet 1 If the temperature difference T between them 1 -T 0 If the temperature is more than or equal to 4 ℃, the air deflector is controlled to be opened to the position of the maximum air outlet, and if the temperature difference value T of the air deflector and the air deflector is larger than or equal to the temperature difference value T of the maximum air outlet 1 -T 0 The position of the air deflector is unchanged according to the set position of the user when the temperature is lower than 4 ℃.
Example two
The motor temperature rise control method in the second embodiment is different from that in the first embodiment in that: the relative positions of the motors in the air conditioning apparatus are different.
As shown in fig. 3, when the motor 10 is positioned below the reference surface S, the temperature of the surrounding environment of the motor due to hot air during heating is not required to be consideredThe problem of the rise in the degree is that the control method in the cooling mode and the heating mode is the same. After the air conditioner is started, the motor 10 rotates, the air conditioner updates the record in real time, when the surface temperature T of the motor 10 is detected to be more than or equal to 120 ℃, the rotating speed r of the motor is controlled to be reduced by 10r/min, the surface temperature T is detected in real time while the rotating speed is reduced, if the surface temperature T is still more than or equal to 120 ℃, the rotating speed r is correspondingly reduced by 10r/min, and the cycle is performed until the surface temperature T is less than 120 ℃, and the current rotating speed r of the motor is output at the moment 0 At the output current rotation speed r 0 Simultaneously detecting the air outlet temperature T at the air outlet 1 If the temperature difference T between them 1 -T 0 If the temperature is more than or equal to 4 ℃, the air deflector is controlled to be opened to the position of the maximum air outlet, and if the temperature difference value T of the air deflector and the air deflector is larger than or equal to the temperature difference value T of the maximum air outlet 1 -T 0 The position of the air deflector is unchanged according to the set position of the user when the temperature is lower than 4 ℃.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
acquiring the surface temperature T of a motor and the initial air outlet temperature T of an air outlet of an air conditioner in real time 0 The rotating speed r of the motor is adjusted according to the relation between the surface temperature T and the first preset temperature value A, so that the surface temperature T of the motor is reduced by reducing the rotating speed r of the motor. The reduction value (preset rotation speed value delta r) of the rotation speed r is adjusted according to the relative position of the motor in the air conditioner and/or the running mode of the air conditioner, so that the motor is quickly cooled on the premise that the normal running of the air conditioner is not affected, the problem that the temperature of the motor is too high in the running process in the prior art is solved, the surface temperature T of the motor is ensured to be smaller than a first preset temperature value A, the service life of the motor is prolonged, and the energy consumption of the air conditioner is reduced.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A motor temperature rise control method, characterized by comprising:
acquiring the surface temperature T of the motor (10) and the initial air outlet temperature T at the air outlet of the air conditioner 0 ；
Judging the relation between the surface temperature T and a first preset temperature value A, and controlling the rotating speed r of the motor (10) to reduce a preset rotating speed value delta r if the surface temperature T is larger than or equal to the first preset temperature value A; if the surface temperature T is smaller than the first preset temperature value A, obtaining the air outlet temperature T at the air outlet at the moment 1 And the initial air outlet temperature T 0 The temperature difference value between the two air conditioning units increases the air output of the air conditioning units or maintains the current air output according to the temperature difference value;
judging the relative position of the motor (10) in an air conditioner, and adjusting the value of the preset rotating speed value delta r according to the relative position and/or the running mode of the air conditioner; wherein the operation modes include a cooling mode and a heating mode;
the method for judging the relative position of the motor (10) in the air conditioner comprises the following steps:
judging the height relation between the motor (10) and the reference surface S of the air conditioner;
the height H1 of the reference surface S and the overall height H of the air conditioner satisfy:
H1＝1/2H；
the method for adjusting the value of the preset rotating speed value delta r according to the relative position and/or the running mode of the air conditioner comprises the following steps:
if the motor (10) is positioned above the reference surface S, adjusting the value of the preset rotating speed value delta r according to the running mode of the air conditioner;
if the motor (10) is positioned below the reference surface S, the value of the preset rotating speed value delta r is unchanged.
2. The motor temperature increase control method according to claim 1, wherein the method of increasing the air outlet amount of the air conditioner or maintaining the current air outlet amount according to the temperature difference value comprises:
if the temperature difference value is larger than or equal to a second preset temperature value B, increasing the air output of the air conditioner;
if the temperature difference value is smaller than a second preset temperature value B, controlling the air conditioner to maintain the current air output;
wherein the second preset temperature value B is more than or equal to 3 ℃ and less than or equal to 6 ℃.
3. The motor temperature rise control method according to claim 1, wherein the method of increasing the air outlet amount of the air conditioner includes:
and controlling the air deflector of the air conditioner to rotate by a preset air outlet angle so as to increase the air outlet quantity of the air conditioner.
4. The motor temperature rise control method according to claim 1, wherein the method of adjusting the value of the preset rotation speed value Δr according to the operation mode of the air conditioner includes:
if the air conditioner is in the cooling mode, setting the preset rotation speed value delta r as a first preset value r 1 ；
If the air conditioner is in the heating mode, setting the preset rotation speed value delta r as a second preset value r 2 ；
Wherein the second preset value r 2 Is greater than the first preset value r 1 。
5. The motor temperature rise control method according to claim 4, wherein the second preset value r 2 And the first preset value r 1 The following are satisfied: r is (r) 1 ＜r 2 ≤3r 1 。
6. The motor temperature rise control method according to claim 1, characterized in that the surface temperature T is obtained in real time after the rotational speed r of the motor (10) is controlled to be reduced by a preset rotational speed value Δr, and if the surface temperature T is greater than or equal to the first preset temperature value a, the rotational speed r of the motor (10) is controlled to be reduced by a preset rotational speed value Δr until the surface temperature T is less than the first preset temperature value a.
7. The motor temperature rise control method according to claim 1, wherein when the surface temperature T is smaller than the first preset temperature value a, an outlet air temperature T at the outlet at that time is obtained 1 And judging the air outlet temperature T 1 And the initial air outlet temperature T 0 Temperature difference value between them.
8. The motor temperature rise control method according to claim 1, wherein the surface temperature T is obtained by a first temperature detection device, and when the surface temperature T is smaller than the first preset temperature value a, the rotational speed sensor of the air conditioning device is controlled to detectMeasuring the current rotational speed r of the motor (10) 0 Controlling a second temperature detection device to obtain the air outlet temperature T at the air outlet 1 Judging the air outlet temperature T 1 And the initial air outlet temperature T 0 Temperature difference value between them.
9. The motor temperature rise control method according to claim 1, characterized in that the surface temperature T is obtained by a first temperature detection means, the rotational speed r of the motor (10) is detected by a rotational speed sensor of the air conditioning device at every preset time, and the outlet air temperature T is obtained by a second temperature detection means of the air conditioning device at every preset time 1 When the surface temperature T is smaller than the first preset temperature value A, the current rotating speed r of the motor (10) is obtained 0 Simultaneously acquiring the air outlet temperature T 1 Judging the air outlet temperature T 1 And the initial air outlet temperature T 0 Temperature difference value between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410400.4A CN114636238B (en) | 2022-04-19 | 2022-04-19 | Motor temperature rise control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410400.4A CN114636238B (en) | 2022-04-19 | 2022-04-19 | Motor temperature rise control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114636238A CN114636238A (en) | 2022-06-17 |
| CN114636238B true CN114636238B (en) | 2023-04-28 |
Family
ID=81951526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210410400.4A Active CN114636238B (en) | 2022-04-19 | 2022-04-19 | Motor temperature rise control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114636238B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208845A (en) * | 2016-07-11 | 2016-12-07 | 广东美的暖通设备有限公司 | The control method of direct current generator and control device and breeze fan |
| CN110145842A (en) * | 2019-04-19 | 2019-08-20 | 青岛海尔空调器有限总公司 | Air conditioner air deflector condensation prevention control method |
| CN113489425A (en) * | 2021-06-04 | 2021-10-08 | 东风汽车集团股份有限公司 | Driving motor locked-rotor control method, system and storage medium |
| CN113864986A (en) * | 2021-10-20 | 2021-12-31 | 珠海格力电器股份有限公司 | Air conditioner control method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172128A (en) * | 1981-04-17 | 1982-10-22 | Hitachi Ltd | Overload operation preventive device for air conditioner |
| KR101516977B1 (en) * | 2013-09-26 | 2015-05-04 | 주식회사 효성 | A device for cooling a motor |
| CN105762986B (en) * | 2014-12-13 | 2018-06-19 | 中山大洋电机股份有限公司 | A kind of ECM motors of automatic speed regulation and its refrigerator-freezer of application |
| CN104697116B (en) * | 2015-03-06 | 2018-03-27 | 美的集团武汉制冷设备有限公司 | The control method of air conditioner, the control system of air conditioner and air conditioner |
| CN104633869B (en) * | 2015-03-16 | 2017-06-06 | 珠海格力电器股份有限公司 | The control method and system of air-conditioner outdoor unit |
| CN106196408B (en) * | 2015-04-29 | 2019-04-09 | 广东美的制冷设备有限公司 | Control method, parameter controller and the air conditioner of the parameter of air conditioner |
| CN104949290B (en) * | 2015-07-16 | 2017-12-08 | 广东美的暖通设备有限公司 | The control method and control device of base station air conditioner |
| CN106123217A (en) * | 2016-06-27 | 2016-11-16 | 青岛海尔空调器有限总公司 | A kind of maintain air conditioning exhausting temperature method, control device and air conditioning system |
| JP7095419B2 (en) * | 2018-06-08 | 2022-07-05 | 株式会社デンソー | Air conditioner |
| CN111780322A (en) * | 2020-06-11 | 2020-10-16 | 珠海格力电器股份有限公司 | Control method for air conditioner and air conditioner using same |
| CN112484249B (en) * | 2020-11-06 | 2021-11-23 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
| CN113162263B (en) * | 2021-05-10 | 2021-10-26 | 浙江金龙电机股份有限公司 | Motor structure for improving torque and control method |
| CN113847688B (en) * | 2021-09-18 | 2022-09-27 | 珠海格力电器股份有限公司 | Internal fan control method and device, air conditioner and computer readable storage medium |
-
2022
- 2022-04-19 CN CN202210410400.4A patent/CN114636238B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208845A (en) * | 2016-07-11 | 2016-12-07 | 广东美的暖通设备有限公司 | The control method of direct current generator and control device and breeze fan |
| CN110145842A (en) * | 2019-04-19 | 2019-08-20 | 青岛海尔空调器有限总公司 | Air conditioner air deflector condensation prevention control method |
| CN113489425A (en) * | 2021-06-04 | 2021-10-08 | 东风汽车集团股份有限公司 | Driving motor locked-rotor control method, system and storage medium |
| CN113864986A (en) * | 2021-10-20 | 2021-12-31 | 珠海格力电器股份有限公司 | Air conditioner control method |
Non-Patent Citations (1)
| Title |
|---|
| 刘志财；秦宪.空调室外电机高温失效原因分析及解决对策.空调室外电机高温失效原因分析及解决对策.2019,第640-643页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114636238A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112018471B (en) | Method and device for controlling liquid cooling of battery pack | |
| CN106765883A (en) | A kind of control method of frequency of variable-frequency air-conditioner | |
| US4615481A (en) | Air conditioner | |
| CN210532530U (en) | Primary and secondary air conditioner | |
| US11879658B2 (en) | Air-conditioning ventilation system | |
| CN106322685A (en) | Control method for constant-temperature dehumidification of air conditioner and air conditioner | |
| CN109424573A (en) | Cooling fan rotation speed control device, control system and its method for controlling number of revolution | |
| JP2008151481A (en) | Energy-saving control operation method and device for refrigerating machine | |
| CN114636238B (en) | Motor temperature rise control method | |
| CN106765952A (en) | A kind of air conditioning control method and system | |
| CN107708380A (en) | charger and its core controller, heat exchange control method | |
| CN107842416B (en) | A kind of truck is cooling with noise balance control system and control method | |
| CN115320427B (en) | Charging pile heat dissipation system control method and control equipment and direct-current charging pile | |
| CN111076316A (en) | Humidity control method | |
| CN108332344B (en) | Control method for partitioned air supply air conditioner and air conditioner | |
| JP2008236955A (en) | Cooling system, and control method and vehicle therefor | |
| JP2000018636A (en) | Air conditioner with rotary total heat exchanger | |
| JPH0128299B2 (en) | ||
| KR101811981B1 (en) | Air conditioner with waste heat reuse function | |
| JP2002213242A (en) | Cooling controller for movable body | |
| CN212029721U (en) | Fan device | |
| CN103135717A (en) | Container type data center and noise reduction method thereof | |
| JP2971778B2 (en) | Dehumidifier regeneration control environment device | |
| JP2002147365A (en) | Exhaust pressure control device of evacuation system | |
| CN213092985U (en) | Temperature regulating device for transformer chamber |
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 |