CN108613324A - Motor load mated condition detecting system, method and air conditioner - Google Patents
Motor load mated condition detecting system, method and air conditioner Download PDFInfo
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- CN108613324A CN108613324A CN201710303639.0A CN201710303639A CN108613324A CN 108613324 A CN108613324 A CN 108613324A CN 201710303639 A CN201710303639 A CN 201710303639A CN 108613324 A CN108613324 A CN 108613324A
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- Prior art keywords
- motor
- load
- feedback signal
- shaft sleeve
- mated condition
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Abstract
The invention discloses a kind of motor load mated condition detecting system, method and air conditioners, including：Motor；Load, the motor is for driving the load movement；Controller, feedback signal for acquiring the motor, it determines that the connection status of the motor and the load obtains the mated condition between motor and load so as to the load condition of the motor of basis according to the feedback signal, so as to air-conditioning energy normal use, facilitates investigation failure and repair.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to arrives a kind of motor load mated condition detecting system and air-conditioning
Device.
Background technology
A kind of household electrical appliance that air conditioner is generally used as family, can accomplish more intelligent, meet market to sky
The high-end requirement for adjusting device, is the direction that industry is continually striving to always.
With the development of the prior art, air-conditioning service life is being continuously increased, and after user's prolonged use, basis is needed to make
Regularly cleaning is carried out with situation.But after cleaning in assembling process, or durings production completes transport etc.,
Fan blade is influenced with motor by fit-up gap, and there is assembly fan blade not in place can not be normally with motor operation.It is commonly installed people
Member is difficult to observe by, and when air-conditioning is opened or after long-time unlatching, may accelerate the damage of motor or fan blade, reduce motor
Or the service life of fan blade
Therefore, it is whether fully mated as urgent problem to be solved with motor how to detect load.
Invention content
The technical problem to be solved in the present invention is to detect fan blade and whether motor is fully mated.
For this purpose, according in a first aspect, present example provides a kind of motor load mated condition detecting system, including：
Motor；Load, motor is for driving load movement；Controller, the feedback signal for acquiring motor, determines according to feedback signal
The connection status of motor and load.
Optionally, which further includes：Motor shaft sleeve, for covering the rotor for covering motor；Axle sleeve is loaded, covers load for covering
Shaft；Motor set axis is connected with load set axis；Controller is used to determine motor shaft sleeve and bearing axle according to feedback signal
The connection status of set.
Optionally, controller is for acquiring motor working current；Controller is additionally operable to judge that motor working current intensity is
It is no within the scope of predetermined current intensity；When motor working current intensity exceeds predetermined current intensity range, motor shaft sleeve and negative
Axle sleeve is carried not connect closely；When motor working current intensity is within the scope of predetermined current intensity, motor shaft sleeve and load axle sleeve
Close connection.
Optionally, controller is for acquiring motor speed；Whether controller is additionally operable to judge motor speed in preset rotation speed
In range；When motor speed exceeds preset rotation speed range, motor shaft sleeve and load axle sleeve do not connect closely；When motor speed exists
When within the scope of preset rotation speed, motor shaft sleeve and the close connection of bearing axle set.
Optionally, motor is rotated by the pulse-modulated signal of duty ratio lower limit.
Optionally, it loads as air-conditioning fan blade.
According to second aspect, an embodiment of the present invention provides a kind of motor load mated condition detection method, including it is as follows
Step：Obtain the feedback signal of motor；Judge feedback signal whether within a preset range；When feedback signal within a preset range
When, motor is closely connect with load；When feedback signal exceeds preset range, motor is not connect closely with load.
Optionally, motor includes：Motor shaft sleeve, for covering the rotor for covering motor, motor shaft sleeve follows the rotor of motor same
Step rotation；Load includes：Axle sleeve is loaded, for covering the shaft for covering load, load axle sleeve follows the shaft of load to rotate synchronously；Electricity
Machine covers axis and is connected with load set axis.
Optionally, feedback signal includes the operating current of motor；This method includes：Obtain the operating current of motor；Judge
Whether the operating amperage of motor is within the scope of predetermined current intensity；When the operating amperage of motor is in predetermined current intensity
When range, motor shaft sleeve and the close connection of bearing axle set；When the operating amperage of motor exceeds predetermined current intensity range,
Motor shaft sleeve and load axle sleeve do not connect closely.
Optionally, feedback signal includes the rotating speed of motor；The method includes：Obtain the rotating speed of motor；Judge turning for motor
Whether speed is in the range of speeds；When motor speed within a preset range when, motor shaft sleeve and the close connection of bearing axle set；Work as electricity
When machine rotating speed is beyond in preset range, motor shaft sleeve and load axle sleeve do not connect closely.
According to the third aspect, an embodiment of the present invention provides a kind of air conditioners, including above-mentioned first aspect any one to retouch
The motor load mated condition detecting system stated.
Motor load mated condition detecting system, method and the air conditioner that present example provides, motor driving load fortune
Dynamic, during the work time, motor has feedback signal back to controller, and it is true according to feedback signal that controller collects feedback signal
Determine the connection status of motor and load.It more can effectively detect whether motor and load cooperation are complete, can facilitate investigation
Failure and repair, so as to air-conditioning energy normal use.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the flow diagram of motor load mated condition detection method in the embodiment of the present invention；
Fig. 2 shows pulse-modulated signals in the embodiment of the present invention and motor speed relation schematic diagram；
Fig. 3 shows the schematic diagram of motor load mated condition detection device of the embodiment of the present invention；
Fig. 4 shows the schematic diagram of motor load mated condition detecting system of the embodiment of the present invention.
Fig. 5 shows that motor shaft sleeve of the embodiment of the present invention covers close connection diagram with bearing axle；
Fig. 6 shows motor shaft sleeve of the embodiment of the present invention and the load not close connection diagram of axle sleeve.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements, can be wirelessly connected, can also be wired connection.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
An embodiment of the present invention provides a kind of detection method suitable for motor load mated condition detecting system, the detections
Method, as shown in Figure 1, may include steps of：
S10. the feedback signal for characterizing electric machine operation state is received.In the particular embodiment, motor is matched with fan blade
Installation is closed, fan blade rotation is driven when motor works, it can be with the rotating speed and use of motor in real time during motor works
In the electric current of control motor speed, when the fully mated i.e. motor band normal load of motor and fan blade, the rotating speed of motor or for controlling
The electric current of motor speed processed is corresponding with current air conditioning mode, for example, air-conditioning is when being adjusted to 20 DEG C of patterns of refrigeration, corresponding motor turns
Speed is the first rotating speed, and motor is also the first rotating speed with feedback signal of the fan blade in the case of fully mated, due to motor and fan blade
Between there may be gap, motor cannot fully mated fan blade so that motor has certain no-load ratio, motor speed to have fixed
Variation, needs to be monitored the working condition of motor, feedback signal is sent to controller.
S20. judge feedback signal whether within a preset range.Specifically, whether it is judged according to the type of feedback signal
Within a preset range.The type of alleged feedback signal, which is motor speed and motor revolution electric current, to be had and turns in the particular embodiment
The motor of speed feedback is for example, whether alternating current generator, can judge motor in zero load according to the rotating speed of motor.Alleged preset range,
In practical applications, due to being interfered by power grid or extraneous factor, current of electric might have variation, cause motor speed may
It can change, empty load of motor is greater than extraneous factor to the variation that motor speed is brought influences the variation brought to motor speed,
The threshold value of influence of the range of speeds as empty load of motor to motor speed can be preset in the present embodiment.If feedback letter
Number in preset range, then S30 is entered step.If feedback signal is beyond in preset range, it is determined that motor and load are not close
Connection.
S30. determine that motor is closely connect with load.
In an alternate embodiment of the invention, it can be illustrated so that feedback signal is motor speed as an example, specifically, step S20
May include：
Judge motor speed whether within the scope of preset rotation speed.In the particular embodiment, by taking variable-frequency motor as an example, to account for
Sky than lower limiting value export pulse-modulated signal, control motor rotation, rotating speed of the motor in zero load with it is defeated with duty ratio lower limiting value
The relationship of the pulse-modulated signal gone out such as Fig. 2, it is known that, for motor in zero load, motor can reach maximum speed quickly, such as
1350rpm.Motor maximum speed is more than the normal bringing onto load rotating speed of motor, at this time can be by detecting whether motor speed is more than in advance
If rotating speed, alleged preset rotation speed is motor normally load-carrying rotating speed or rated speed range, with air-conditioning current working status
It is corresponding.If motor speed is within the scope of preset rotation speed, it is determined that motor is closely connect with load, between motor and fan blade
Cooperation is there are gap or does not coordinate.If motor exceeds preset rotation speed range, it is determined that motor and the not close connection of load, electricity
Machine is closely connect with fan blade..
In an alternate embodiment of the invention, it can be illustrated so that feedback signal is motor revolution electric current as an example, specifically, step
S20 can also include：
Judge motor working current whether within the scope of predetermined current.In specifically embodiment, with common DC motor
For, pulse-modulated signal, control motor rotation are exported with duty ratio lower limiting value.Revolution electric current of the motor in zero load is less than electricity
Electric current when machine bringing onto load, the size that can detect motor working current judge whether motor is light condition.Predetermined current can be with
It is determined by the operating mode of current air-conditioning.If motor working current is within the scope of predetermined current, it is determined that motor is tight with load
Close connection,.If motor working current is beyond within the scope of predetermined current, it is determined that motor and the not close connection of load.
In an alternate embodiment of the invention, it after judging feedback signal beyond preset range, obtains motor and is in light condition,
It may include steps of：
S40. it sends for characterizing motor and loading the fault-signal of not close connection status to fault cues device.To carry
Show current motor malfunction.In the particular embodiment, motor is in light condition and then indicates exist between motor and fan blade
Gap, or do not coordinate indicates that motor be in malfunction, can according to judging result transmission fault-signal to display device,
Display device can be display, and LED display etc. can also notify installation personnel or user in the form of sending out prompt tone, or
Installation personnel or user terminal, such as mobile phone, computer etc. are sent to by LAN or internet in the form of prompting message, with
It prompts faulty at installation personnel or user's motor.
At work by motor, feedback signal of the output for characterizing electric machine operation state, receives the feedback signal, root
Determine the working condition of motor according to the feedback signal, then determine the load condition of motor, so as to basis motor it is negative
Load state obtains the mated condition between motor and fan blade, so as to air-conditioning energy normal use, facilitates investigation failure and repair.
An embodiment of the present invention provides a kind of motor load mated condition detection devices, as shown in figure 3, the device includes：
Receiving unit 100, for receiving the feedback signal for characterizing electric machine operation state；Judging unit 200 is used for root
Judge it whether within a preset range according to the type of feedback signal；Determination unit 300, for exceeding in judging unit feedback signal
After preset range, determine that motor is in light condition.
In an alternate embodiment of the invention, feedback signal includes：Motor speed；Judging unit 200 includes：First judges that son is single
Member, for judging whether motor speed is more than preset rotation speed；First determination subelement, for judging in the first judgment sub-unit
After motor speed is more than preset rotation speed, determine that motor is in light condition.
In an alternate embodiment of the invention, feedback signal includes：Motor working current；Judging unit 200 includes：Second judges son
Unit arrives predetermined current for judging whether motor working current is less than；Second judgment sub-unit, for judging that son is single second
After member judges that motor working current is less than predetermined current, determine that motor is in light condition.
In an alternate embodiment of the invention, empty load of motor detection device includes：Output unit 400, for exporting for characterizing electricity
The pulse signal of machine work.
In an alternate embodiment of the invention, empty load of motor detection device includes：Transmission unit, for sending for characterizing at motor
In light condition fault-signal to display device, to show current motor malfunction.
The embodiment of the present invention additionally provides a kind of motor load mated condition detecting system, as shown in figure 4, the device packet
It includes：
Motor 1000；Load 2000, motor 1000 is for driving load movement；Controller 3000, for acquiring motor
1000 feedback signal determines the connection status of motor 1000 and load 2000 according to feedback signal.In the particular embodiment,
Motor 1000 being rotated by the pulse-modulated signal of duty ratio lower limit, motor 1000 is in zero load, in duty ratio
Motor maximum (top) speed can be quickly reached by being transferred under the driving of the pulse signal of lower limit.Load 2000 can be air-conditioning fan blade.
In an alternate embodiment of the invention, which can also include：Motor shaft sleeve 4000 covers 1000 rotor of motor for covering；
Motor shaft sleeve 4000 follows rotor to rotate synchronously.Axle sleeve 5000 is loaded, for covering the shaft for covering load；Load axle sleeve 5000
The shaft of load is followed to rotate synchronously.Motor shaft sleeve 4000 is connected with load axle sleeve 5000；Controller is used for according to feedback
Signal determines motor shaft sleeve 4000 and loads the connection status of axle sleeve 5000.In the present embodiment, Fig. 5 and Fig. 6 are respectively illustrated
Motor shaft sleeve 4000 and load axle sleeve 5000.Wherein, Fig. 5 shows that motor shaft sleeve 4000 closely connect shape with load axle sleeve 5000
State schematic diagram, Fig. 6 show motor shaft sleeve 4000 and load 5000 not close connection diagram of axle sleeve.Motor shaft sleeve 4000 can be with
It is fixedly connected, can also removably connect with rotor, but need to ensure that motor shaft sleeve 4000 is rotated synchronously with rotor.
Likewise, load axle sleeve 5000 can be fixedly connected with load shaft, can also be detachably connected, but need proof load axle sleeve
5000 rotate synchronously with load shaft.Motor 1000 and the connection status of load 2000 are motor shaft sleeve 4000 and load axle sleeve
5000 connection status, there are gaps at load 5000 cooperation of axle sleeve for motor shaft sleeve 4000, and motor 1000 is in band dynamic load turn
, may be incomplete due to coordinating when dynamic, cause motor 1000 that cannot drive load 2000,1000 actual loading of motor may completely
Less than theoretical duty, the rotating speed of motor 1000 and the operating current of motor 1000 may change, and can be turned according to motor
The variation of the feedback signals such as speed and motor working current determines the connection status of motor 1000 and load 2000.
In an alternate embodiment of the invention, controller is for acquiring motor working current；Controller is additionally operable to judge that motor works
Whether current strength is within the scope of predetermined current intensity；When motor working current intensity exceeds predetermined current intensity range, electricity
Arbor set 4000 and the not close connection of load axle sleeve 5000.In the particular embodiment, after controller acquisition motor working current,
It can be by comparing the motor working current and theoretical motor efforts electric current of device or logic circuit comparison acquisition.Theoretical
Motor working current is predetermined current intensity range.After comparing by comparator or logic circuit, if motor work electricity
Intensity of flow exceeds predetermined current intensity range, then shows that motor 1000 is not connect closely with load 2000.In the present embodiment, electric
When machine 1000 is not connect closely with load 2000, since actual loading is small, motor working current is smaller than theoretical current.It is alleged to exceed
Predetermined current intensity range is no less than predetermined current intensity.If operating amperage is within the scope of predetermined current intensity, motor
1000 closely connect with load 2000.
In an alternate embodiment of the invention, since motor 1000 is matched with load 2000 and state can influence motor speed.It can adopt
Collection motor speed judges connection status.Specifically, controller is for acquiring motor speed；Controller 3000 is additionally operable to sentence
Whether power machine rotating speed is within the scope of preset rotation speed；When motor speed exceeds preset rotation speed range, motor shaft sleeve 4000 and negative
Carry the not close connection of axle sleeve 5000.In the present embodiment, can the motor of acquisition be turned reading, which is converted into, is judged to motor speed
Electric signal is compared by comparator or logic circuit.
The embodiment of the present invention additionally provides a kind of air conditioner, which includes the electric machines test described in above-described embodiment
System just dismounts air conditioner etc. specifically, the air-conditioning machine can be normal domestic use air-conditioning.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations can be made in the case of bright spirit and scope, and such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (11)
1. a kind of motor load mated condition detecting system, which is characterized in that including：
Motor；
Load, the motor is for driving the load movement；
Controller, the feedback signal for acquiring the motor determine the motor and the load according to the feedback signal
Connection status.
2. motor load mated condition detecting system as described in claim 1, which is characterized in that further include：
Motor shaft sleeve, for covering the rotor for covering the motor, the motor shaft sleeve follows the rotor of the motor to rotate synchronously；
Axle sleeve is loaded, for covering the shaft for covering the load, the load axle sleeve follows the shaft of the load to rotate synchronously；
The motor set axis is connected with load set axis；
The controller is used to determine the connection status of the motor shaft sleeve and the load axle sleeve according to the feedback signal.
3. motor load mated condition detecting system as claimed in claim 2, which is characterized in that
The controller is used to acquire the operating current of the motor；
Whether the controller is additionally operable to judge the operating amperage of the motor within the scope of predetermined current intensity；
When the operating amperage of the motor exceeds the predetermined current intensity range, the motor shaft sleeve and the load
Axle sleeve does not connect closely；
When the motor working current intensity is within the scope of the predetermined current intensity, the motor shaft sleeve and the bearing axle
The close connection of set.
4. motor load mated condition detecting system as claimed in claim 2, which is characterized in that
The controller is used to acquire the rotating speed of the motor；
Whether the controller is additionally operable to judge the rotating speed of the motor within the scope of preset rotation speed；
When the rotating speed of the motor exceeds preset rotation speed range, the motor shaft sleeve and the load axle sleeve do not connect closely；
When the rotating speed of the motor is within the scope of the preset rotation speed, the motor shaft sleeve and bearing axle set closely connect
It connects.
5. the motor load mated condition detecting system as described in claim 1-4 any one, which is characterized in that
The motor is rotated by the pulse-modulated signal of duty ratio lower limit.
6. the motor load mated condition detecting system as described in claim 1-4 any one, the load is air-conditioning fan blade.
7. a kind of motor load mated condition detection method, which is characterized in that including：
Obtain the feedback signal of motor；
Judge the feedback signal whether within a preset range；
When the feedback signal is in the preset range, the motor is closely connect with the load；
When the feedback signal exceeds the preset range, the motor is not connect closely with the load.
8. motor load mated condition detection method as claimed in claim 7, which is characterized in that
The motor includes：Motor shaft sleeve, for covering the rotor for covering the motor, the motor shaft sleeve follows turning for the motor
Son rotates synchronously；The load includes：Axle sleeve is loaded, for covering the shaft for covering the load, the load axle sleeve follows described
The shaft of load rotates synchronously；The motor set axis is connected with load set axis.
9. motor load mated condition detection method as claimed in claim 8, which is characterized in that
The feedback signal includes the operating current of motor；
The method includes：
Obtain the operating current of the motor；
Judge the operating amperage of the motor whether within the scope of predetermined current intensity；
When the operating amperage of the motor is in the predetermined current intensity range, the motor shaft sleeve and the bearing axle
The close connection of set；
When the operating amperage of the motor exceeds the predetermined current intensity range, the motor shaft sleeve and the load
Axle sleeve does not connect closely.
10. motor load mated condition detection method as claimed in claim 8, which is characterized in that
The feedback signal includes the rotating speed of motor；
The method includes：
Obtain the rotating speed of the motor；
Judge whether the rotating speed of the motor is in the range of speeds；
When the motor speed is in the preset range, the motor shaft sleeve and the close connection of bearing axle set；
When the motor speed is beyond in the preset range, the motor shaft sleeve and the load axle sleeve do not connect closely.
11. a kind of air conditioner, which is characterized in that including：Motor load mated condition as claimed in any one of claims 1 to 6
Detecting system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056100X | 2017-01-25 | ||
| CN201710056100 | 2017-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108613324A true CN108613324A (en) | 2018-10-02 |
Family
ID=63658314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710303639.0A Pending CN108613324A (en) | 2017-01-25 | 2017-05-02 | Motor load mated condition detecting system, method and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN108613324A (en) |
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| CN111156662A (en) * | 2019-12-31 | 2020-05-15 | 珠海格力电器股份有限公司 | Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner |
| CN111928422A (en) * | 2020-07-23 | 2020-11-13 | Tcl空调器(中山)有限公司 | Fan system operation abnormity detection method and device, air conditioner and storage medium |
| CN112303812A (en) * | 2020-11-03 | 2021-02-02 | 珠海格力电器股份有限公司 | Control method and control device of air conditioner, air conditioning system and processor |
| CN112433151A (en) * | 2019-08-26 | 2021-03-02 | 上海汽车集团股份有限公司 | Oil pump motor fault diagnosis method and device |
| CN112631242A (en) * | 2020-12-07 | 2021-04-09 | 国网四川省电力公司电力科学研究院 | Power abuse analysis method and device for household electrical equipment |
| CN116907825A (en) * | 2023-09-11 | 2023-10-20 | 湖南揽月机电科技有限公司 | Automatic checking system and method for flywheel shafting |
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| CN112433151A (en) * | 2019-08-26 | 2021-03-02 | 上海汽车集团股份有限公司 | Oil pump motor fault diagnosis method and device |
| CN112433151B (en) * | 2019-08-26 | 2024-01-16 | 上海汽车集团股份有限公司 | Oil pump motor fault diagnosis method and device |
| CN111156662A (en) * | 2019-12-31 | 2020-05-15 | 珠海格力电器股份有限公司 | Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner |
| CN111928422A (en) * | 2020-07-23 | 2020-11-13 | Tcl空调器(中山)有限公司 | Fan system operation abnormity detection method and device, air conditioner and storage medium |
| CN112303812A (en) * | 2020-11-03 | 2021-02-02 | 珠海格力电器股份有限公司 | Control method and control device of air conditioner, air conditioning system and processor |
| CN112631242A (en) * | 2020-12-07 | 2021-04-09 | 国网四川省电力公司电力科学研究院 | Power abuse analysis method and device for household electrical equipment |
| CN116907825A (en) * | 2023-09-11 | 2023-10-20 | 湖南揽月机电科技有限公司 | Automatic checking system and method for flywheel shafting |
| CN116907825B (en) * | 2023-09-11 | 2024-01-16 | 湖南揽月机电科技有限公司 | Automatic checking system and method for flywheel shafting |
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