CN110208679A - Main board failure inquiry unit, system and air-conditioner set - Google Patents
Main board failure inquiry unit, system and air-conditioner set Download PDFInfo
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- CN110208679A CN110208679A CN201910529411.2A CN201910529411A CN110208679A CN 110208679 A CN110208679 A CN 110208679A CN 201910529411 A CN201910529411 A CN 201910529411A CN 110208679 A CN110208679 A CN 110208679A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
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Abstract
This application involves a kind of main board failure inquiry unit, system and air-conditioner sets, when needing to carry out main board failure detection, by fault detection means close to mainboard, so that the distance between mainboard coupling coil of detection coupling coil and mainboard is less than or equal to pre-determined distance, detection controller is sent to detection memory after detection data, the detection coupling coil being connected with detection memory can generate alternating current, so as to cause the oscillation of mainboard coupling coil.And being capable of forming reverse charging electric current when mainboard coupling coil vibrates is corresponding equipment charge on mainboard, to which the main board failure data that mainboard is stored be sent in the form of electric current, mainboard coupling coil is under the action of main board failure data corresponding electric current, it is vibrated with detection coupling coil, to which main board failure data are transmitted to detection coupling coil, and then it is transferred to detection memory in the form of electric current, the inquiry operation for realizing main board failure data, has the advantages that operation ease is high.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of main board failure inquiry unit, system and air-conditioner set.
Background technique
With the rapid development of science and technology with the continuous improvement of living standards of the people, the air conditioner of multi-connected machine set type exists
It is had been more and more widely used in small and medium construction and part public building.Along with the raising of sales volume, air conditioner is asked after sale
Topic is also more severe, how efficiently to carry out the inquiry of failure after sale and has been parsed into air conditioner industry urgent problem to be solved.
In multi-joint unit, it is provided with the historical failure record that line control machine carries out the mainboard of multi-joint unit.When progress failure
When inquiry or analysis, the historical failure that line control machine could be recorded by needing to power on is read out, to obtain the history event of mainboard
Hinder data.Therefore, traditional main board failure querying method has the shortcomings that operation ease is low.
Summary of the invention
Based on this, it is necessary to for the low problem of traditional main board failure querying method operation ease, provide a kind of master
Plate failure inquiry device, system and air-conditioner set.
A kind of main board failure inquiry unit, described device include: detection controller, detection memory and detection coupling line
Circle, the detection controller connect the detection memory, and the detection memory connects the detection coupling coil, the inspection
Coupling coil is surveyed for coupling with the mainboard coupling coil of mainboard, the detection controller is used to send to the detection memory
Detection data, so that the detection coupling coil being connected with the detection memory generates alternating current；The detection coupling
Coil is used to make when the distance between the detection coupling coil and the mainboard coupling coil are less than or equal to pre-determined distance
It is the main board power supply that the mainboard coupling coil oscillation, which generates reverse charging electric current,；The detection coupling coil is also used to receive
The fault data that the mainboard is sent in the form vibrated, and the fault data is sent to the detection in the form of electric current
Memory.
In one embodiment, the detection memory is the read-only storage chip of electrically erasable, the read-only storage of electrically erasable
The first coil pin of chip and the second coil pin of the read-only storage chip of the electrically erasable are separately connected the detection coupling
The data pin of coil, the read-only storage chip of electrically erasable connects institute with the clock pins of the read-only storage chip of the electrically erasable
Detection controller is stated, the enabled pin of the read-write of the read-only storage chip of electrically erasable connects the read-only storage chip of the electrically erasable
Grounding pin is simultaneously grounded, and the first power pins of the read-only storage chip of electrically erasable connect the read-only storage chip of electrically erasable
Second source pin and for connecting external power supply.
In one embodiment, the main board failure inquiry unit further include first resistor, second resistance, 3rd resistor and
4th resistance, one end of the first resistor connect the detection controller, the other end connection of the first resistor described the
The data pin of one end of two resistance and the read-only storage chip of the electrically erasable, the other end connection described the of the second resistance
One power pins, one end of the 3rd resistor connect the detection controller, described in the other end connection of the 3rd resistor
One end of 4th resistance and the clock pins of the read-only storage chip of the electrically erasable, the 4th resistance the other end connection described in
First power pins.
In one embodiment, the main board failure inquiry unit further includes first capacitor, one end of the first capacitor
Connect first power pins, the other end ground connection of the first capacitor.
In one embodiment, the detection controller is micro-control unit controls device.
A kind of main board failure inquiry system, including mainboard and above-mentioned main board failure inquiry unit, the mainboard includes master
Plate coupling coil, main board memory and mainboard controller, the mainboard coupling coil connect the main board memory, the mainboard
Memory connects the mainboard controller, and the mainboard coupling coil is used to couple when the detection coupling coil with the mainboard
When the distance between coil is less than or equal to pre-determined distance, oscillation generates reverse charging electric current and powers for the main board memory,
And the fault data that the main board memory is sent is sent to the detection coupling coil in the form vibrated；The mainboard
Memory is used to store the fault data that the mainboard controller is sent, and by fault data under the action of reverse charging electric current
It is sent to the mainboard coupling coil in the form of electric current.
In one embodiment, the detection coupling coil and the mainboard coupling coil are that impedance operator is identical and inductance
Measure consistent coil.
In one embodiment, the mainboard further includes the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, institute
The one end for stating the 5th resistance connects the mainboard controller, and the other end of the 5th resistance connects one end of the 6th resistance
With the data pin of the main board memory, the third power supply that the other end of the 6th resistance connects the main board memory draws
Foot, one end of the 7th resistance connect the mainboard controller, and the other end of the 7th resistance connects the 8th resistance
One end and the main board memory clock pins, the other end of the 8th resistance connects the third of the main board memory
Power pins, the enabled pin of the read-write of the main board memory connect ground terminal and the ground connection of the main board memory, the master
The third power pins of board memory connect the 4th power pins of the main board memory and for connecting external power supply, described
The tertiary coil pin of main board memory and the 4th coil pin of the main board memory are separately connected the mainboard coupling line
Circle.
In one embodiment, the mainboard further includes the second capacitor, and one end of second capacitor connects the third
Power pins, the other end ground connection of second capacitor.
A kind of air-conditioner set, including above-mentioned main board failure inquiry system.
Above-mentioned main board failure inquiry unit, system and air-conditioner set, main board failure inquiry unit be provided with detection controller,
Memory and detection coupling coil are detected, when needing to carry out main board failure detection, by fault detection means close to mainboard, so that
It detects the distance between mainboard coupling coil of coupling coil and mainboard and is less than or equal to pre-determined distance, detect controller to detection
After memory sends detection data, the detection coupling coil being connected with detection memory can generate alternating current, thus
Cause the oscillation of mainboard coupling coil.And it is on mainboard that reverse charging electric current is capable of forming when mainboard coupling coil vibrates
Corresponding equipment charge, to the main board failure data that mainboard is stored be sent in the form of electric current, mainboard coupling line
Circle vibrates, thus by main board failure data under the action of main board failure data corresponding electric current with detection coupling coil
It is transmitted to detection coupling coil, and then is transferred to detection memory in the form of electric current, realizes the inquiry behaviour of main board failure data
Make.Above scheme provides a kind of non-transformer formula main board failure inquiry mode, does not need to power on mainboard, it is only necessary to will lead
Plate failure inquiry device is placed close to mainboard, and the inquiry and acquisition of main board failure data can be realized, and has operation ease high
The advantages of.
Detailed description of the invention
Fig. 1 is main board failure inquiry unit structural schematic diagram in an embodiment；
Fig. 2 is main board failure inquiry unit structural schematic diagram in another embodiment；
Fig. 3 is main board failure inquiry system structural schematic diagram in an embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to disclosure of this application more saturating
It is thorough comprehensive.
Referring to Fig. 1, a kind of main board failure inquiry unit, comprising: detection controller 100, detection memory 200 and detection
Coupling coil 300 detects 100 connecting detection memory 200 of controller, detects 200 connecting detection coupling coil 300 of memory,
Detection coupling coil 300 is for coupling (not shown) with the mainboard coupling coil of mainboard, and detection controller 100 to detection for depositing
Reservoir 200 sends detection data, so that the detection coupling coil 300 being connected with detection memory 200 generates alternating current；Detection
Coupling coil 300 is used for when detecting the distance between coupling coil 300 and mainboard coupling coil less than or equal to pre-determined distance,
Make mainboard coupling coil oscillation generate reverse charging electric current main board power supply, detect coupling coil 300 be also used to receive mainboard with
The fault data that the form of oscillation is sent, and fault data is sent to detection memory 200 in the form of electric current.
Specifically, detection controller 100 is to carry out work for controlling detection memory 200 and detection coupling coil 300
Make, so that electric signal to be transferred to the device of mainboard by mainboard coupling coil.The type of detection data be not it is unique, can
To be the electric signal generated when main board failure inquiry unit powers on, it is also possible to after main board failure inquiry unit powers on, uses
The signal sent when family needs to carry out main board failure inquiry by detection controller 100, as long as enabling to and detection memory
200 connected detection coupling coils 300 generate alternating current.When user by main board failure inquiry unit close to mainboard (i.e.
Detect close to each other between coupling coil 300 and mainboard coupling coil), and distance ought be less than or equal to and can produce between the two
When distance (i.e. the pre-determined distance) of resonance, detection coupling coil 300 will resonate with mainboard coupling coil, be based on electromagnetism sense
Principle is answered, the transmission of electric current or signal may be implemented.It should be pointed out that detection controller 100 send detection data can be with
Before being the operation in the mobile main board failure inquiry unit of user close to mainboard, it is also possible in the mobile main board failure inquiry of user
Device is after the operation of mainboard, i.e., when the distance between mainboard coupling coil and detection coupling coil 300 are less than or equal to
When pre-determined distance, just detection data can be sent by detection controller 100.
Alternating current is generated on coupling coil 300 when detecting, and is detected between coupling coil 300 and mainboard coupling coil
Distance be less than or equal to pre-determined distance after, mainboard coupling coil can vibrate under the action of alternating current, thus shape
It is sent to the memory device etc. of mainboard at reverse charging electric current, operating current is provided for the memory device of mainboard, so that depositing
Memory device activation sends out the main board failure data of storage.Likewise, when the fault data of memory device storage is sent to
After mainboard coupling coil, the oscillation of mainboard coupling coil can be made to generate alternating current, main board failure data will be with alternation electricity
The form of stream passes through the oscillation transmission between mainboard coupling coil and detection coupling coil 300 to detection memory 200 and inspection
Controller 100 is surveyed, main board failure inquiry unit is realized and the detection of main board failure is operated.
It should be pointed out that in one embodiment, reading distance (the i.e. detection coupling coil of main board failure inquiry unit
300 can produce at a distance from resonance between mainboard coupling coil) it can be adjusted.When the confession of main board failure inquiry unit
Piezoelectric voltage or supply current are bigger, and the reading distance of corresponding main board failure inquiry unit also can be bigger.Pass through above-mentioned mainboard
Failure inquiry device does not need to power on mainboard in the main board failure inquiry for carrying out mainboard, realizes that mainboard is inquired without electricity
Historical failure has the advantages that operation ease is high.Simultaneously because not needing directly to power on mainboard, main board failure is avoided
Biggish voltage is not present when inquiry on mainboard, has ensured the safety of main board failure inquiry operation.
Referring to Fig. 2, in one embodiment, detection memory 200 is the read-only storage (Electronically of electrically erasable
Erasable Read-Only Memory, EEROM) chip, the first coil pin L1 and electricity of the read-only storage chip of electrically erasable can
The the second coil pin L2 for wiping read-only storage chip is separately connected detection coupling coil 300, the number of the read-only storage chip of electrically erasable
According to the clock pins SCL1 connecting detection controller 100 of pin SDA1 and the read-only storage chip of electrically erasable, the read-only storage of electrically erasable
The grounding pin GND of the enabled read-only storage chip of pin WP1 connection electrically erasable of the read-write of chip is simultaneously grounded (not shown), electrically erasable
The second source pin VCC2 of the first read-only storage chip of power pins VCC1 connection electrically erasable of read-only storage chip is simultaneously used for
Connect external power supply.
Specifically, the first power pins VCC1 of EEROM chip is connected with second source pin VCC2, and for connecting
Identical external power supply is the normal of EEROM chip from the first power pins VCC1 and second source pin VCC2 input power
Work power supply.And the second coil pin L2 of first coil pin L1 and the EEROM chip of EEROM chip is then for will test
The detection data that memory 200 is sent to EEROM chip exports the drive for carrying out detection coupling coil 300 in the form of alternating current
It is dynamic, while coupling coil 300 can also be detected and enable to input main board failure data to the inside of EEROM chip.It is appreciated that
The read-write of EEROM chip enables pin and is connected with grounding pin and at the same time be grounded setting, enables so that EEROM chip is defaulted,
When receive detection coupling coil 300 and mainboard coupling coil close to when, can directly carry out mainboard according to electromagnetic induction principle
The inquiry of fault data and read operation.
It should be pointed out that the type of detection memory 200 is not uniquely, to be not limited in the present embodiment
EEROM chip, can also be EEPROM (Electrically Erasable Programmable Read Only Memory,
Band Electrically Erasable Programmable Read-Only Memory) chip etc..As long as can be when between detection coupling coil 300 and mainboard coupling coil
When distance is less than or equal to pre-set current value, made to detect the vibration generation alternating current of coupling coil 300 according to detection data, and
And receive the main board failure data that mainboard coupling coil vibrates transmission in the form of electric current.
Referring to Fig. 2, in one embodiment, main board failure inquiry unit further include first resistor R1, second resistance R2,
The other end of one end connecting detection controller 100 of 3rd resistor R3 and the 4th resistance R4, first resistor R1, first resistor R1 connects
Connect the other end connection the of one end of second resistance R2 and the data pin SDA1 of the read-only storage chip of electrically erasable, second resistance R2
One end connecting detection controller 100 of one power pins VCC1,3rd resistor R3, the 4th electricity of other end connection of 3rd resistor R3
The other end the first power supply of connection for hindering one end of R4 and the clock pins SCL1, the 4th resistance R4 of the read-only storage chip of electrically erasable draws
Foot VCC1.
Specifically, in the present embodiment, the data pin of EEROM chip and clock pins pass through respectively second resistance R2 and
4th resistance R4 is connect with external power supply, while the data pin of EEROM chip passes through first resistor R1 and detection controller 100
Upper corresponding data I/O port (I/O) mouth is connected, and the enabled pin of EEROM chip is also corresponding to pass through 3rd resistor
R3 is connected with corresponding port on detection controller 100.Pass through first resistor R1, second resistance R2,3rd resistor R3 and the 4th
The setting of resistance R4 guarantees that EEROM chip can input the voltage of stable safety, to guarantee the reliable operation of EEROM chip
Property.
Referring to Fig. 2, in one embodiment, main board failure inquiry unit further includes first capacitor C1, first capacitor C1
One end connect the first power pins VCC1, first capacitor C1 the other end ground connection.
Specifically, in the present embodiment, it detects and is arranged between the first power input pin and external power supply of memory 200
There is a capacitor, which has jamproof effect.One end of first capacitor C1 is connected with external power supply, first capacitor C1's
Other end ground connection, to guarantee that external power supply provides stable power supply for EEROM chip, while can also reduce EEROM chip
It is coupled to the noise of power end, can reduce other elements indirectly is influenced by EEROM chip noise, further ensure that
The job stability of EEROM chip.
In one embodiment, detection controller 100 is micro-control unit controls device.
Specifically, micro-control unit controls device (Microcontroller Unit, MCU) is a kind of central processing unit
(Central Process Unit；CPU frequency) and specification do appropriate reduction, and by memory (memory), counter
(Timer), the perimeter interfaces such as USB, A/D conversion, UART, PLC, DMA or even LCD driving circuit are all integrated on a single chip,
Form the computer of chip-scale.It realizes that the detection data in main board failure inquiry unit is sent by MCU, and then realizes entire main
Control of the plate failure inquiry device to the read operation of main board failure data there is control mode simply and readily to realize excellent
Point.
Above-mentioned main board failure inquiry unit is provided with detection controller 100, detection memory 200 and detection coupling coil
300, when needing to carry out main board failure detection, by fault detection means close to mainboard, so that detection coupling coil 300 and mainboard
The distance between mainboard coupling coil be less than or equal to pre-determined distance, detection controller 100 sends inspection to detection memory 200
After measured data, the detection coupling coil 300 being connected with detection memory 200 can generate alternating current, so as to cause master
The oscillation of plate coupling coil.And it is corresponding on mainboard that reverse charging electric current is capable of forming when mainboard coupling coil vibrates
Equipment charge, so that the main board failure data that mainboard is stored be sent in the form of electric current, mainboard coupling coil is in master
Under the action of the corresponding electric current of plate fault data, vibrated with detection coupling coil 300, so that main board failure data be transmitted
To detection coupling coil 300, and then in the form of electric current be transferred to detection memory 200, realize main board failure data inquiry
Operation.Above scheme provides a kind of non-transformer formula main board failure inquiry mode, does not need to power on mainboard, it is only necessary to will
Main board failure inquiry unit is placed close to mainboard, and the inquiry and acquisition of main board failure data can be realized, and has operation ease
High advantage.
Referring to Fig. 3, a kind of main board failure inquiry system, including mainboard 20 and above-mentioned main board failure inquiry unit 10,
Mainboard 20 includes mainboard coupling coil 400, main board memory 500 and mainboard controller 600, the connection master of mainboard coupling coil 400
Board memory 500, main board memory 500 connect mainboard controller 600, and mainboard coupling coil 400 is used for when detection coupling coil
When the distance between 300 and mainboard coupling coil 400 are less than or equal to pre-determined distance, it is mainboard that oscillation, which generates reverse charging electric current,
Memory 500 is powered, and the fault data that main board memory 500 is sent is sent to detection coupling coil in the form vibrated
300；Main board memory 500 is used to store the fault data of the transmission of mainboard controller 600, and under the action of reverse charging electric current
Fault data is sent to mainboard coupling coil 400 in the form of electric current.
Specifically, corresponding with main board failure inquiry unit 10, mainboard is correspondingly arranged on mainboard coupling coil 400, mainboard
Memory 500 and mainboard controller 600, main board memory 500 are stored with the historical failure data of mainboard and for driving control
The corresponding data of unit operation processed.If failure has occurred in unit in the process of running, mainboard controller 600 can be by number of faults factually
When be stored in main board memory 500, in order to when main board failure inquiry unit 10 carry out fault inquiry when can obtain timely
Obtain newest main board failure data.When detection the distance between coupling coil 300 and mainboard coupling coil 400 are less than or equal to
After pre-determined distance, mainboard coupling coil 400 vibrates under the action of detecting the alternating current that coupling coil 300 generates,
The main board memory 500 being connected with mainboard coupling coil 400 is sent to generate reverse charging electric current.Main board memory 500
It is activated under the action of charging circuit, the main board failure data that main board memory 500 stores will be in the form of alternating current
It is exported to mainboard coupling coil 400.Under the action of alternating current, detect between coupling coil 300 and mainboard coupling coil 400
It vibrates, will be transferred to based on main board failure data known to electromagnetic induction principle and detects what coupling coil 300 was connected
Memory 200 is detected, to complete the inquiry operation of main board failure data.
In one embodiment, detecting coupling coil 300 and mainboard coupling coil 400 is that impedance operator is identical and inductance
Consistent coil.Specifically, in the present embodiment, the impedance operator for detecting coupling coil is consistent with inductance, ensure that
Main board failure data are in the stability transmitted.Further, in one embodiment, coupling coil 300 and mainboard are detected
Coupling coil 400 can be completely the same coil, can equally guarantee that main board failure data have the transmission of mainboard coupling coil 400
It will not be distorted to detection coupling coil 300 and when detecting memory 200.
Referring to Fig. 3, in one embodiment, mainboard 20 further includes the 5th resistance R5, the 6th resistance R6, the 7th resistance R7
With the 8th resistance R8, one end of the 5th resistance R5 connects mainboard controller 600, and the other end of the 5th resistance R5 connects the 6th resistance
One end of R6 and the data pin SDA2 of main board memory 500, the of the other end connection main board memory 500 of the 6th resistance R6
One end of three power pins VCC3, the 7th resistance R7 connects mainboard controller 600, the 8th electricity of other end connection of the 7th resistance R7
The other end for hindering one end of R8 and the clock pins SCL2, the 8th resistance R8 of main board memory 500 connects main board memory 500
Third power pins VCC3, the ground terminal GND of the enabled pin WP2 connection main board memory 500 of the read-write of main board memory 500 is simultaneously
It is grounded (not shown), the 4th power pins of the third power pins VCC3 connection main board memory 500 of main board memory 500
VCC4 simultaneously is used to connect external power supply, the tertiary coil pin L3 of main board memory 500 and the 4th coil of main board memory 500
Pin L4 is separately connected mainboard coupling coil 400.
Specifically, as above-mentioned detection memory 200, in the present embodiment, main board memory 500 is also an electrically erasable
Read-only storage chip (EEROM).EEROM chip interior is stored with the master data of main board failure data and unit operation, works as master
When plate damage power-off, the data stored in EEROM chip will not be wiped free of.Wherein, the tertiary coil pin of main board memory 500
L3 and the 4th coil pin L4 are connected with mainboard coupling coil 400 respectively, can be by the mainboard event inside main board memory 500
Hinder data output driving mainboard coupling coil 400 in the form of alternating current, while can also be made by mainboard coupling coil 400
Can, so that the inside that the reversed alternating current generated according to mainboard coupling coil 400 is main board memory 500 is powered.The
Three-winding pin L3 and the 4th coil pin L4 has the function of synchronous enabled, if detecting reverse charging electric current, enables
The transmission of the progress main board failure data of main board memory 500.
The read-write of main board memory 500 enables pin WP2 and is connected with grounding pin GND and is grounded simultaneously, so that read-write makes
Energy pin WP2 default is enabled.The data pin SDA2 and clock pins SCL2 of main board memory 500 pass through the 6th resistance R6 respectively
It is connect with the 8th resistance R8 with external power supply, while the data pin SDA2 of main board memory 500 passes through the 5th resistance R5 and master
Corresponding data I/O port (I/O) mouth is connected on plate controller 600, and the enabled pin of main board memory 500 also corresponds to
Connected with port corresponding in mainboard controller 600 by the 7th resistance R7.Pass through the 5th resistance R5, the 6th resistance R6,
The setting of seven resistance R7 and the 8th resistance R8 guarantees the job stability of main board memory 500.The of main board memory 500
Three power pins VCC3 are when being connected with external power supply with the 4th power pins VCC4, i.e., mainboard is not powered on and worked
When, it is based on electromagnetic induction principle, is that main board memory 500 provides reverse charging electric current by main board failure inquiry unit 10, from
And main board memory 500 is exported the main board failure data of storage.
Likewise, the type of detection memory 200 is not unique, the EEROM core being not limited in the present embodiment
Piece can also be eeprom chip etc..As long as can be in the case where corresponding power pins be powered, when detection coupling line
When enclosing the distance between 300 and mainboard coupling coil 400 less than or equal to pre-set current value, produced according to mainboard coupling coil 400
Raw reverse charging electric current is powered, and the main board failure data of storage are exported in the form of alternating current.It can manage
Solution, in one embodiment, mainboard controller 600 is similarly MCU.
Referring to Fig. 3, in one embodiment, mainboard further includes one end connection the of the second capacitor C2, the second capacitor C2
The other end of three power pins VCC3, the second capacitor C2 is grounded.
Specifically, it is provided with a capacitor between the third power input pin and external power supply of main board memory 500, it should
Capacitor has jamproof effect.One end of second capacitor C2 with external power supply for being connected, another termination of the second capacitor C2
Ground, to guarantee under electrifying condition, external power supply is that main board memory 500 provides stable power supply, while can also reduce
Main board memory 500 is coupled to the noise of power end, can reduce other elements indirectly by the shadow of 500 noise of main board memory
It rings, further ensure that the job stability of main board memory 500.
Above-mentioned main board failure inquiry system is provided with detection controller 100, detection storage in main board failure inquiry unit 10
Device 200 and detection coupling coil 300, when needing to carry out main board failure detection, by fault detection means close to mainboard, so that inspection
It surveys the distance between mainboard coupling coil 400 of coupling coil 300 and mainboard and is less than or equal to pre-determined distance, detect controller
After 100 send detection data to detection memory 200, the detection coupling coil 300 being connected with detection memory 200 can
Alternating current is generated, so as to cause the oscillation of mainboard coupling coil 400.And it can when mainboard coupling coil 400 vibrates
Forming reverse charging electric current is corresponding equipment charge on mainboard, so that the main board failure data that mainboard is stored are with electric current
Form is sent, and mainboard coupling coil 400 is under the action of main board failure data corresponding electric current, with detection coupling coil
300 vibrate, so that main board failure data are transmitted to detection coupling coil 300, and then are transferred to inspection in the form of electric current
Memory 200 is surveyed, realizes the inquiry operation of main board failure data.Above scheme provides a kind of non-transformer formula main board failure inquiry
Mode does not need to power on mainboard, it is only necessary to place main board failure inquiry unit 10 close to mainboard, mainboard can be realized
The inquiry and acquisition of fault data, have the advantages that operation ease is high.
A kind of air-conditioner set, including above-mentioned main board failure inquiry system.
Specifically, main board failure inquiry system is as shown in figure 3, be applied to air conditioner for above-mentioned main board failure inquiry system
Group, corresponding mainboard is the mainboard of air-conditioner set, if air-conditioner set breaks down in the process of running, corresponding fault message
It will be stored in main board memory 500.Mainboard coupling coil 400, main board memory 500 are provided on the mainboard of air-conditioner set
With mainboard controller 600, main board memory 500 is stored with the historical failure data of mainboard and runs for drive control unit
Corresponding data.If failure has occurred in unit in the process of running, fault data can be stored in real time by mainboard controller 600
Main board memory 500, in order to when main board failure inquiry unit 10 carry out fault inquiry when can obtain timely obtain it is newest
Main board failure data.When detection the distance between coupling coil 300 and mainboard coupling coil 400 less than or equal to pre-determined distance it
Afterwards, mainboard coupling coil 400 vibrates under the action of detecting the alternating current that coupling coil 300 generates, to generate anti-
The main board memory 500 being connected with mainboard coupling coil 400 is sent to charging current.Main board memory 500 is in charging circuit
Under the action of be activated, main board memory 500 store main board failure data will in the form of alternating current to mainboard couple
Coil 400 exports.Under the action of alternating current, detects and is vibrated between coupling coil 300 and mainboard coupling coil 400,
It will be transferred to and the detection memory that detects coupling coil 300 and be connected based on main board failure data known to electromagnetic induction principle
200, to complete the inquiry operation of main board failure data.
Above-mentioned air-conditioner set, main board failure inquiry unit 10 are provided with detection controller 100, detection memory 200 and inspection
Coupling coil 300 is surveyed, when needing to carry out main board failure detection, by fault detection means close to mainboard, so that detection coupling line
The distance between circle 300 and the mainboard coupling coil 400 of mainboard are less than pre-determined distance, detect controller 100 to detection memory
After 200 send detection data, the detection coupling coil 300 being connected with detection memory 200 can generate alternating current, from
And cause the oscillation of mainboard coupling coil 400.And reverse charging electric current is capable of forming when mainboard coupling coil 400 vibrates
It is led for equipment charge corresponding on mainboard so that the main board failure data that mainboard is stored be sent in the form of electric current
Plate coupling coil 400 vibrates under the action of main board failure data corresponding electric current with detection coupling coil 300, thus
Main board failure data are transmitted to detection coupling coil 300, and then are transferred to detection memory 200 in the form of electric current, are realized
The inquiry operation of main board failure data.Above scheme provides a kind of non-transformer formula main board failure inquiry mode, does not need to master
Plate is powered on, it is only necessary to place main board failure inquiry unit 10 close to mainboard, the inquiry of main board failure data can be realized
With acquisition, have the advantages that operation ease is high.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of main board failure inquiry unit, which is characterized in that described device includes: detection controller, detection memory and inspection
Coupling coil is surveyed, the detection controller connects the detection memory, and the detection memory connects the detection coupling line
Circle, the detection coupling coil are used to couple with the mainboard coupling coil of mainboard,
The detection controller is used to send detection data to the detection memory, so that be connected with the detection memory
The detection coupling coil generates alternating current；The detection coupling coil is used for when the detection coupling coil and the mainboard
When the distance between coupling coil is less than or equal to pre-determined distance, the mainboard coupling coil oscillation is made to generate reverse charging electric current
For the main board power supply；The fault data that the detection coupling coil is also used to receive the mainboard and sends in the form that vibrates,
And the fault data is sent to the detection memory in the form of electric current.
2. main board failure inquiry unit according to claim 1, which is characterized in that the detection memory is electrically erasable
Read storage chip, the second of the first coil pin of the read-only storage chip of electrically erasable and the read-only storage chip of the electrically erasable
Coil pin is separately connected the detection coupling coil, the data pin and the electrically erasable of the read-only storage chip of electrically erasable
The clock pins of read-only storage chip connect the detection controller, and the read-write of the read-only storage chip of electrically erasable enables pin
The grounding pin of the read-only storage chip of the electrically erasable and ground connection are connected, the first power supply of the read-only storage chip of electrically erasable draws
Foot connects the second source pin of the read-only storage chip of the electrically erasable and for connecting external power supply.
3. main board failure inquiry unit according to claim 2, which is characterized in that further include first resistor, second resistance,
One end of 3rd resistor and the 4th resistance, the first resistor connects the detection controller, the other end of the first resistor
Connect one end of the second resistance and the data pin of the read-only storage chip of the electrically erasable, the other end of the second resistance
Connect first power pins, one end of the 3rd resistor connects the detection controller, the 3rd resistor it is another
End connects one end of the 4th resistance and the clock pins of the read-only storage chip of the electrically erasable, the 4th resistance it is another
End connects first power pins.
4. main board failure inquiry unit according to claim 3, which is characterized in that it further include first capacitor, described first
One end of capacitor connects first power pins, the other end ground connection of the first capacitor.
5. main board failure inquiry unit according to claim 1-4, which is characterized in that the detection controller is
Micro-control unit controls device.
6. a kind of main board failure inquiry system, which is characterized in that including mainboard and the described in any item mainboards events of claim 1-5
Hinder inquiry unit, the mainboard includes mainboard coupling coil, main board memory and mainboard controller, and the mainboard coupling coil connects
The main board memory is connect, the main board memory connects the mainboard controller,
The mainboard coupling coil be used to be less than when the distance between the detection coupling coil and the mainboard coupling coil or
When equal to pre-determined distance, oscillation generates reverse charging electric current and is that the main board memory is powered, and by the main board memory
The fault data of transmission is sent to the detection coupling coil in the form vibrated；The main board memory is for storing the master
The fault data that plate controller is sent, and fault data is sent to institute in the form of electric current under the action of reverse charging electric current
State mainboard coupling coil.
7. main board failure inquiry system according to claim 6, which is characterized in that the detection coupling coil and the master
Plate coupling coil is that impedance operator is identical and the consistent coil of inductance.
8. main board failure inquiry system according to claim 6, which is characterized in that the mainboard further include the 5th resistance,
One end of 6th resistance, the 7th resistance and the 8th resistance, the 5th resistance connects the mainboard controller, the 5th resistance
The other end connect one end of the 6th resistance and the data pin of the main board memory, the other end of the 6th resistance
Connecting the third power pins of the main board memory, one end of the 7th resistance connects the mainboard controller, and described the
The other end of seven resistance connects one end of the 8th resistance and the clock pins of the main board memory, the 8th resistance
The other end connects the third power pins of the main board memory, and the read-write of the main board memory enables pin and connects the master
The ground terminal and ground connection, the third power pins of the main board memory of board memory connect the 4th electricity of the main board memory
Source pin simultaneously is used to connect external power supply, the tertiary coil pin of the main board memory and the 4th line of the main board memory
Circle pin is separately connected the mainboard coupling coil.
9. main board failure inquiry system according to claim 8, which is characterized in that the mainboard further includes the second capacitor,
One end of second capacitor connects the third power pins, the other end ground connection of second capacitor.
10. a kind of air-conditioner set, which is characterized in that including the described in any item main board failure inquiry systems of claim 6-9.
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| CN201910529411.2A CN110208679A (en) | 2019-06-19 | 2019-06-19 | Main board failure inquiry unit, system and air-conditioner set |
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| CN201910529411.2A CN110208679A (en) | 2019-06-19 | 2019-06-19 | Main board failure inquiry unit, system and air-conditioner set |
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| CN201910529411.2A Pending CN110208679A (en) | 2019-06-19 | 2019-06-19 | Main board failure inquiry unit, system and air-conditioner set |
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