CN105974263A - Motor wrong connection detection device and method - Google Patents
Motor wrong connection detection device and method Download PDFInfo
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- CN105974263A CN105974263A CN201610398665.1A CN201610398665A CN105974263A CN 105974263 A CN105974263 A CN 105974263A CN 201610398665 A CN201610398665 A CN 201610398665A CN 105974263 A CN105974263 A CN 105974263A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
Abstract
The invention provides a motor wrong connection detection device and method. The motor wrong connection detection device comprises a first power supply, a connection unit, a current detection unit and a comparison unit; the first power supply is used for outputting first voltage; the connection unit is used for connecting any two connection lines among external connection lines of the motor to the detection device; the current detection unit is used for detecting the current of the detection device under the first voltage so as to obtain a first current value; and the comparison unit is used for determining whether the motor has a connection error according to a comparison result of the first current value and a second current value in a database. According to the technical scheme, the motor wrong wiring detection device and method can efficiently and conveniently determine whether the motor has a connection error, improve installation and maintenance efficiency and reduce installation and maintenance cost.
Description
Technical field
The present invention relates to control field, particularly relate to a kind of motor wrong line detector and method.
Background technology
Blower fan in central air-conditioning is usually many notch speed motor, and central air-conditioning is being carried out by attemperating unit
During control, PAU+FCU system can be made as required at different gears, thus the temperature in control room is protected
Hold a suitable temperature；But, in the installation process carrying out attemperating unit, site operation
The many blower fan gear output control lines that attemperating unit exports, due to carelessness, are usually mixed up by personnel
(such as: high tap position output control line is connected in the low-grade location tap of blower fan, low-grade location is exported
Control line is connected in the high tap position tap of blower fan), this will result in the attemperating unit control to blower fan
Confusion, not only makes attemperating unit cannot realize the control to room temperature, and makes commissioning staff be difficult to look for
It has the reason of wherein fault.
Summary of the invention
Present invention is primarily targeted at the defect overcoming above-mentioned prior art, it is provided that a kind of motor
Wrong line detector and method, it is possible to distinguish motor zero line and gear line, it is possible to access at unit
Before 220V, each line is correctly accessed temperature controller, improve the safety of equipment and the effect of installation
Rate.
One aspect of the present invention provides a kind of motor wrong line detector, including the first power supply, connects
Line unit, current detecting unit, comparing unit and data base, wherein, described first power supply, use
In exporting the first voltage；Described wiring units, for by with in the external connecting wire of described motor
Any two connecting lines are connected to described detection device；Described current detecting unit, is used for detecting described
Detect device electric current under described first voltage effect thus obtain the first current value；The most single
Unit, for the comparative result according to described first current value Yu second current value of described data base,
Determine whether described motor exists wiring error.
Alternatively, described data base includes at least one second current value, described at least one second
Current value is corresponding with at least one normal operating conditions of described motor.
Alternatively, described data base include at least one first supply voltage value and with each
At least one second current value that one supply voltage value is corresponding, at least one second current value described
With described motor at least one normal operating conditions under the first supply voltage value effect that it is corresponding
Corresponding.
Alternatively, when described motor is third gear motor, at least one normal operating conditions bag described
Include the first normal operating conditions when motor is operated in high tap position, time motor is operated in middle gear
Two normal operating conditions, motor are operated in the 3rd normal operating conditions during gear.
Alternatively, the described comparison knot according to described first current value with second current value of data base
Really, determine whether motor exists wiring error specifically, work as described first current value and described second
Current value matches, and determines that described motor is working properly, otherwise determines that described motor exists wiring wrong
By mistake.
Alternatively, described coupling includes: the first current value and the second current value are equal, or the first electricity
Flow valuve falls into the interval included by the second current value, or the first current value and the second current value accord with
Close the relation preset.
Alternatively, described second electric current includes that interval, described valued space are
[a-b, a+b], wherein, b=a × n%, 0.5≤n≤8, a is the average of the second many sub-samplings of electric current
Value.
Alternatively, also include testing result signal sending unit, for when determining that motor exists wiring
After mistake, send alarm signal；And/or, there is not wiring error when determining, just send wiring
Often cue.
Alternatively, the voltage of described first power supply output is safe voltage, and described safe voltage is in institute
State detection device when breaking down or be abnormal, it is possible to ensure that detected motor safety is unlikely to send out
Raw damage.
Alternatively, described safe voltage includes 24V alternating voltage.
Another aspect of the invention provides a kind of motor wrong line detecting method, external by described motor
Any two connecting lines in connecting line are connected to foregoing arbitrary detection device, described first
Under the described first voltage effect of power supply output, detect the electric current in described detection device thus obtain
Described first current value；By described first current value and the second current value ratio in described data base
Relatively, determine whether described motor exists wiring error.
Alternatively, described motor includes air conditioner motor, and described motor wrong line detecting method is used for
Before described motor access temperature controller, the external connecting wire to described motor detects.
The scheme that the present invention provides can determine motor whether wrong line efficiently, easily, improves peace
Dress, maintenance efficiency, reduce installation, maintenance cost.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the present invention's
A part, the schematic description and description of the present invention is used for explaining the present invention, and it is right to be not intended that
The improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is that the structure of an embodiment of a kind of motor wrong line detector that the present invention provides is shown
It is intended to；
Fig. 2 is that the structure of an embodiment of a kind of motor wrong line detector that the present invention provides is shown
It is intended to；
Fig. 3 is that the method for an embodiment of a kind of motor wrong line detecting method that the present invention provides is shown
It is intended to；
Fig. 4 is the method stream of an embodiment of a kind of motor wrong line detecting method that the present invention provides
Cheng Tu.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the present invention
Technical solution of the present invention is clearly and completely described by specific embodiment and corresponding accompanying drawing.Aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are not before making creative work
Put the every other embodiment obtained, broadly fall into the scope of protection of the invention.
It should be noted that the term in description and claims of this specification and above-mentioned accompanying drawing
" first ", " second " etc. are for distinguishing similar object, without being used for describing specifically
Order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, with
Embodiments of the invention the most described herein can be with in addition to those here illustrating or describing
Order implement.Additionally, term " includes " and " having " and their any deformation, meaning
Figure is to cover non-exclusive comprising, and such as, contains series of steps or the process of unit, side
Method, system, product or equipment are not necessarily limited to those steps or the unit clearly listed, but can
Including that the most clearly list or for intrinsic other of these processes, method, product or equipment
Step or unit.
Fig. 1 is that the structure of an embodiment of a kind of motor wrong line detector that the present invention provides is shown
It is intended to.
The embodiment of the invention, as shown in Figure 1.Detect dress in this specific embodiment
Put 100 and include wiring units the 101, first power supply 103, current detecting unit 105, relatively list
Unit 107, data base 109.
Wiring units 101, for being connected with any two in the external connecting wire of described motor
Line is connected to detect device.
The external connecting wire of motor includes zero line and gear line.Such as, when gear include height, in,
Time low-grade, external connecting wire includes zero line, high-grade bit line, middle-grade bit line and low-grade bit line.
First power supply 103, for output the first voltage, the first voltage is motor and detection device group
The circuit loop become is powered.
Kind according to motor is different, and the first voltage can be alternating current, it is also possible to is unidirectional current.
Alternatively, the first voltage is safe voltage, and so-called safe voltage refers to, when motor and detection
When short circuit or fault occurs in the circuit loop of device composition, this supply voltage is not result in that motor damages
Ruin.
Alternatively, the first voltage can be 24V AC (exchange), 110V AC etc..
Current detecting unit 105, detects the loop being made up of motor and detection device at the first voltage
Effect under electric current thus obtain the first current value.
Data base 109, for storage the second current value.
In the embodiment of the invention, data base 109 stores at least one second electricity
Stream.
Such as, motor includes 4 external connections: zero line, high-grade bit line, middle-grade bit line and low-grade location
Line.Normal operating conditions (wrong line situation does not i.e. occur), optional two lines accesses the present invention
All generations one second electric current of the detection device that detailed description of the invention provides, therefore data base includes
6 the second electric currents.
In the embodiment of the invention, data base 109 stores at least one first power supply
Magnitude of voltage and at least one second current value corresponding with each first supply voltage value,
At least one second current value and described motor under the first supply voltage value effect that it is corresponding extremely
A few normal operating conditions is corresponding.
Such as, in data base 109, the first supply voltage value includes 24V AC and 48V AC, works as electricity
Machine includes 4 external connections: when zero line, high-grade bit line, middle-grade bit line and low grade bit line, 24V AC
Corresponding 6 the second current values, corresponding 6 the second current values of 48V AC.
Comparing unit 107, for the comparison according to the first current value Yu second current value of data base
As a result, determine whether motor exists wiring error.
Such as, match when the first current value and the second current value, it is determined that motor is working properly,
Otherwise determine that motor exists wiring error.
Alternatively, when the first current value and the second current value are equal, then it is assumed that the first current value and
Two current values match.
Alternatively, the first current value falls into the interval included by the second current value, then it is assumed that the
One current value and the second current value match.
Alternatively, the second electric current includes that interval, valued space are expressed as [a-b, a+b], its
In, b=a × n%, 0.5≤n≤8, a is the meansigma methods of the second many sub-samplings of electric current.
Alternatively, the first current value and the second current value meet default relation, then it is assumed that first
Current value and the second current value match.
Such as, the first electric current is that the second electric current is multiplied by a coefficient, or the first electric current and the second electric current accord with
Unify fixed functional relationship.
Fig. 2 is the structure of an embodiment of a kind of motor wrong line detector that the present invention provides
Schematic diagram.
The embodiment of the invention, as shown in Figure 2.Detect dress in this specific embodiment
Put 200 and include wiring units the 201, first power supply 203, current detecting unit 205, relatively list
Unit 207, data base 209 and testing result transmitting element 211.
Wiring units 201, for being connected with any two in the external connecting wire of described motor
Line is connected to detect device.
The external connecting wire of motor includes zero line and gear line.Such as, when gear include height, in,
Time low-grade, external connecting wire includes zero line, high-grade bit line, middle-grade bit line and low-grade bit line.
First power supply 203, for output the first voltage, the first voltage is motor and detection device group
The circuit loop become is powered.
Kind according to motor is different, and the first voltage can be alternating current, it is also possible to is unidirectional current.
Alternatively, the first voltage is safe voltage, and so-called safe voltage refers to, when motor and detection
When short circuit or fault occurs in the circuit loop of device composition, this supply voltage is not result in that motor damages
Ruin.
Alternatively, the first voltage can be 24V AC (exchange), 110V AC etc..
Current detecting unit 205, detects the loop being made up of motor and detection device at the first voltage
Effect under electric current thus obtain the first current value.
Data base 209, for storage the second current value.
In the embodiment of the invention, data base 209 stores at least one second electricity
Stream.
Such as, motor includes 4 external connections: zero line, high-grade bit line, middle-grade bit line and low-grade location
Line.Normal operating conditions (wrong line situation does not i.e. occur), optional two lines accesses the present invention
All generations one second electric current of the detection device that detailed description of the invention provides, therefore data base includes
6 the second electric currents.
In the embodiment of the invention, data base 209 stores at least one first power supply
Magnitude of voltage and at least one second current value corresponding with each first supply voltage value,
At least one second current value and described motor under the first supply voltage value effect that it is corresponding extremely
A few normal operating conditions is corresponding.
Such as, in data base 209, the first supply voltage value includes 24V AC and 48V AC, works as electricity
Machine includes 4 external connections: when zero line, high-grade bit line, middle-grade bit line and low grade bit line, 24V AC
Corresponding 6 the second current values, corresponding 6 the second current values of 48V AC.
Comparing unit 207, for the comparison according to the first current value Yu second current value of data base
As a result, determine whether motor exists wiring error.
Such as, match when the first current value and the second current value, it is determined that motor is working properly,
Otherwise determine that motor exists wiring error.
Alternatively, when the first current value and the second current value are equal, then it is assumed that the first current value and
Two current values match.
Alternatively, the first current value falls into the interval included by the second current value, then it is assumed that the
One current value and the second current value match.
Alternatively, the second electric current includes that interval, valued space are expressed as [a-b, a+b], its
In, b=a × n%, 0.5≤n≤8, a is the meansigma methods of the second many sub-samplings of electric current.
Alternatively, the first current value and the second current value meet default relation, then it is assumed that first
Current value and the second current value match.
Such as, the first electric current is that the second electric current is multiplied by a coefficient, or the first electric current and the second electric current accord with
Unify fixed functional relationship.
Testing result transmitting element 211, for after determining that motor exists wiring error, sends police
Show signal；And/or there is not wiring error when determining, send wiring regular prompt signal.
Alternatively, alarm signal can be that display floater red colored lamp lights, and/or buzzer reports an error
Deng.
Alternatively, wiring regular prompt signal can be that panel green light lights, and/or display accesses
Gear line.
Fig. 3 is that the method for an embodiment of a kind of motor wrong line detecting method that the present invention provides is shown
It is intended to.
The embodiment of the invention, as described in Figure 3.Motor wrong line detecting method, bag
Include step S310, step S330 and step S350.
Any two connecting lines in the external connecting wire of motor are connected to detection dress by step S310
Put.
The external connecting wire of motor includes zero line and gear line.Such as, when gear include height, in,
Time low-grade, external connecting wire includes zero line, high-grade bit line, middle-grade bit line and low-grade bit line.
Step S330, under the described first voltage effect of the first power supply output, detects described detection
Electric current in device thus obtain described first current value.
Kind according to motor is different, and the first voltage can be alternating current, it is also possible to is unidirectional current.
Alternatively, the first voltage is safe voltage, and so-called safe voltage refers to, when motor and detection
When short circuit or fault occurs in the circuit loop of device composition, this supply voltage is not result in that motor damages
Ruin.
Alternatively, the first voltage can be 24V AC (exchange), 110V AC etc..
Step S350, by described first current value and the second current value ratio in described data base
Relatively, determine whether described motor exists wiring error.
Data base, for storage the second current value.
In the embodiment of the invention, at least one the second electric current of database purchase.
Such as, motor includes 4 external connections: zero line, high-grade bit line, middle-grade bit line and low-grade location
Line.Normal operating conditions (wrong line situation does not i.e. occur), optional two lines accesses the present invention
All generations one second electric current of the detection device that detailed description of the invention provides, therefore data base includes
6 the second electric currents.
In the embodiment of the invention, at least one first supply voltage of database purchase
Value and at least one second current value corresponding with each first supply voltage value, at least
One the second current value and described motor under the first supply voltage value effect that it is corresponding at least one
Individual normal operating conditions is corresponding.
Such as, in data base, the first supply voltage value includes 24V AC and 48V AC, when motor bag
Include 4 external connections: zero line, high-grade bit line, when middle-grade bit line and low-grade bit line, 24V AC is corresponding
6 the second current values, corresponding 6 the second current values of 48V AC.
Determining whether motor exists wiring error according to comparative result can be when the first current value and the
Two current values match, it is determined that motor is working properly, otherwise determine that motor exists wiring error.
Alternatively, when the first current value and the second current value are equal, then it is assumed that the first current value and
Two current values match.
Alternatively, the first current value falls into the interval included by the second current value, then it is assumed that the
One current value and the second current value match.
Alternatively, the second electric current includes that interval, valued space are expressed as [a-b, a+b], its
In, b=a × n%, 0.5≤n≤8, a is the meansigma methods of the second many sub-samplings of electric current.
Alternatively, the first current value and the second current value meet default relation, then it is assumed that first
Current value and the second current value match.
Such as, the first electric current is that the second electric current is multiplied by a coefficient, or the first electric current and the second electric current accord with
Unify fixed functional relationship.
In the embodiment of the invention, in conjunction with the various aspects of other embodiments.Described
Motor includes air conditioner motor, and described motor wrong line detecting method is for accessing temperature control at described motor
Before device, the external connecting wire to described motor detects.
Fig. 4 is the method stream of an embodiment of a kind of motor wrong line detecting method that the present invention provides
Cheng Tu.
As shown in Figure 4.Start wrong line detector；Air conditioning unit motor down-lead is introduced wrong line
Detection device；It is set to the detection of 24V AC power supplies；And by the first electric current detected and data base
In the second electric current contrast；When comparing result mates, green indicating lamp is bright, and display connects
Line is correct and indicates gear；When comparing result does not mates, red led is bright, shows wiring
Mistake is also reported to the police.
Thus, utilize the solution of the present invention, the scheme that the present invention provides can efficient, convenient really
Determine motor whether wrong line, improve install, maintenance efficiency, reduce install, maintenance cost.
Function described herein can hardware, performed by processor software, firmware or its
What combination is implemented.If in the software performed by processor implement, then can using function as
One or more instruction or code are stored on computer-readable media or give via computer-readable media
With transmission.Other example and embodiment are in the present invention and the scope of the appended claims and spirit
In.For example, owing to the character of software, function described above can use by processing
The software that device, hardware, firmware, hardwired or the combination appointing whichever in these perform is implemented.This
Outward, during each functional unit can be integrated in a processing unit, it is also possible to be the independent thing of unit
Reason exists, it is also possible to two or more unit are integrated in a unit.
In several embodiments provided herein, it should be understood that in disclosed technology
Hold, can realize by another way.Wherein, device embodiment described above is only shown
Meaning property, the division of the most described unit, can be the division of a kind of logic function, actual when realizing
Can have other dividing mode, the most multiple unit or assembly can in conjunction with or can be integrated
To another system, or some features can be ignored, or does not performs.Another point, shown or beg for
The coupling each other of opinion or direct-coupling or communication connection can be by some interfaces, unit
Or the INDIRECT COUPLING of module or communication connection, can be being electrical or other form.
The described unit illustrated as separating component can be or may not be physically separate
, can be as the parts controlling device or may not be physical location, i.e. may be located at
One place, or can also be distributed on multiple unit.Can be selected it according to the actual needs
In some or all of unit realize the purpose of the present embodiment scheme.
If described integrated unit realizes and as independent product using the form of SFU software functional unit
When selling or use, can be stored in a computer read/write memory medium.Based on such
Understand, part that prior art is contributed by technical scheme the most in other words or
Completely or partially can embodying with the form of software product of this technical scheme, this computer is soft
Part product is stored in a storage medium, including some instructions with so that a computer equipment
(can be for personal computer, server or the network equipment etc.) perform described in each embodiment of the present invention
All or part of step of method.And aforesaid storage medium includes: USB flash disk, read only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access
Memory), the various media that can store program code such as portable hard drive, magnetic disc or CD.
The foregoing is only embodiments of the invention, be not limited to the present invention, for this
For the technical staff in field, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright right.
Claims (12)
1. a motor wrong line detector, it is characterised in that include the first power supply, wiring
Unit, current detecting unit, comparing unit and data base, wherein,
Described first power supply, for output the first voltage；
Described wiring units, for being connected with any two in the external connecting wire of described motor
Line is connected to described detection device；
Described current detecting unit, is used for detecting described detection device under described first voltage effect
Electric current thus obtain the first current value；
Comparing unit, for the second current value according to described first current value and described data base
Comparative result, determines whether described motor exists wiring error.
Device the most according to claim 1, it is characterised in that described data base include to
Few second current value, at least one is normal at least one second current value described and described motor
Duty is corresponding.
Device the most according to claim 1, it is characterised in that described data base include to
Few first supply voltage value and at least one corresponding with each first supply voltage value
Second current value, at least one second current value described with described motor at its first corresponding power supply
At least one normal operating conditions under magnitude of voltage effect is corresponding.
4. according to the device described in Claims 2 or 3, it is characterised in that when described motor is
During third gear motor, at least one normal operating conditions described includes when motor is operated in high tap position
The second normal operating conditions, motor when one normal operating conditions, motor are operated in middle gear work
The 3rd normal operating conditions when gear.
5. according to the arbitrary described device of claim 1-4, it is characterised in that
The described comparative result according to described first current value Yu second current value of data base, determines
Whether motor exists wiring error specifically, work as described first current value and described second current value phase
Coupling then determines that described motor is working properly, otherwise determines that described motor exists wiring error.
Device the most according to claim 5, it is characterised in that described coupling includes: the
One current value and the second current value are equal, or the first current value falls into taking included by the second current value
Value is interval, or the first current value and the second current value meet default relation.
7. according to the arbitrary described device of claim 1-6, it is characterised in that described second electricity
Stream includes that interval, described valued space are [a-b, a+b], wherein,
B=a × n%, 0.5≤n≤8, a is the meansigma methods of the second many sub-samplings of electric current.
8. according to the arbitrary described device of claim 1-7, it is characterised in that also include detection
Consequential signal issue unit, is used for
After determining that motor exists wiring error, send alarm signal；
And/or, there is not wiring error when determining, send wiring regular prompt signal.
9. according to the arbitrary described device of claim 1-8, it is characterised in that
The voltage of described first power supply output is safe voltage, and described safe voltage is at described detection dress
Put when breaking down or be abnormal, it is possible to ensure that detected motor safety is unlikely to damage.
10. according to the arbitrary described device of claim 1-9, it is characterised in that described safety electricity
Pressure includes 24V alternating voltage.
11. 1 kinds of motor wrong line detecting methods, it is characterised in that including:
Any two connecting lines in the external connecting wire of described motor are connected to such as claim 1-
10 arbitrary described detection devices,
Under the described first voltage effect of described first power supply output, detect in described detection device
Electric current thus obtain described first current value；
By described first current value with the second current value ratio in described data base relatively, described electricity is determined
Whether machine exists wiring error.
12. methods according to claim 11, it is characterised in that described motor includes sky
Adjusting motor, described motor wrong line detecting method was used for before described motor accesses temperature controller institute
The external connecting wire stating motor detects.
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| CN201610398665.1A CN105974263B (en) | 2016-06-06 | 2016-06-06 | A kind of motor wrong line detector and method |
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| CN201610398665.1A CN105974263B (en) | 2016-06-06 | 2016-06-06 | A kind of motor wrong line detector and method |
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| CN106597205A (en) * | 2016-11-08 | 2017-04-26 | 珠海格力电器股份有限公司 | Wiring state detection method, wiring state detection device and driver of brushless motor |
| CN106841906A (en) * | 2017-01-12 | 2017-06-13 | 广东美的暖通设备有限公司 | The compressor wiring recognition methods of Air-Cooled Heat Pump Unit and device |
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| CN108152737A (en) * | 2017-12-15 | 2018-06-12 | 格力电器（武汉）有限公司 | A kind of anti-motor line sequence fault monitoring system and its monitoring method |
| CN108254651A (en) * | 2016-12-28 | 2018-07-06 | 致茂电子(苏州)有限公司 | Wiring check method |
| CN108458443A (en) * | 2018-03-20 | 2018-08-28 | 广东美的制冷设备有限公司 | Air conditioner malfunction detection method, detection device, air conditioner and storage medium |
| CN109239521A (en) * | 2018-09-05 | 2019-01-18 | 格力电器（武汉）有限公司 | Wiring detection method and device |
| CN109683054A (en) * | 2018-12-25 | 2019-04-26 | 常州格力博有限公司 | Battery pack voltage acquisition harness line sequence diagnostic device and method |
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