CN208997007U - A kind of fan detection system - Google Patents
A kind of fan detection system Download PDFInfo
- Publication number
- CN208997007U CN208997007U CN201821568034.0U CN201821568034U CN208997007U CN 208997007 U CN208997007 U CN 208997007U CN 201821568034 U CN201821568034 U CN 201821568034U CN 208997007 U CN208997007 U CN 208997007U
- Authority
- CN
- China
- Prior art keywords
- motor
- gear
- fan
- mode
- drive circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model discloses a kind of fan detection systems, including singlechip control chip, remotely receive circuit, motor-drive circuit and LED indicating circuit: the singlechip control chip receives long-range starting detection program after receiving the sense command that circuit is sent；It obtains detection instruction and issues the first control command and the second control command；The motor-drive circuit receives first control command and the fan is driven to enter the first operating mode；The LED indicating circuit receives the second control command and drives the LED indicating circuit；The motor-drive circuit and whether corresponding first operating mode of LED indicating circuit are judged, if then the fan is detected as normally, if being otherwise detected as failure.The utility model design is simple, and whether very convenient fast decision LED light and synchronous motor work normally.Phenomena such as avoiding the missing inspection as caused by human negligence, erroneous detection, can also check whether motor-drive circuit works normally, easy to operate, and judgement is intuitive.
Description
Technical field
The utility model relates to detection system field, in particular to a kind of fan detection system.
Background technique
Fan such as needs to test to product in production, often to check whether corresponding indicator light is bright by a key/
It goes out, existing fan has the multiple functions such as wind speed, wind class, and corresponding indicator lamp quantity is more, is easy when especially testing wind-speed gear
Test leakage misses survey, and tester needs to train for a long time, and force request high concentration is paid attention to when test, while when single product test
Between long, low efficiency, test passes rate is poor.
Utility model content
The utility model aims to provide a kind of testing time it is short, examine comprehensively, erroneous judgement probability it is low, reviewer is short
After time training can light easy to get started detection system, the inspection of product can replace manually, detection get up it is very convenient fastly
Victory can increase substantially working efficiency.
The utility model technical solution used for the above purpose is:
A kind of fan detection system, which is characterized in that including singlechip control chip, remotely receive circuit, motor driven
Circuit and LED indicating circuit:
The singlechip control chip receives long-range starting detection program after receiving the sense command that circuit is sent；Obtain inspection
It surveys instruction and the first control command and the second control command is issued according to the detection instruction；
The motor-drive circuit receives first control command and the fan is driven to enter the first operating mode；
The LED indicating circuit receives the second control command and drives the LED indicating circuit；
The motor-drive circuit and whether corresponding first operating mode of LED indicating circuit are judged, if then described
Fan is detected as normally, if being otherwise detected as failure.
Preferably, the LED indicating circuit includes resistance R9, R10, R11, RJ1, RJ2 and at least one set LED, institute
LED to be stated to be distributed with dot matrix, in which: the input terminal of LED1, LED4, LED8 are separately connected the pin 3 of the singlechip control chip,
The input terminal of LED2, LED3, LED7 are connected after 11 series resistance RJ2 of pin, series resistance RJ1 between resistance RJ2 and LED7 draws
Foot 6 connects the input terminal of LED5, LED9, LED11 and the output end of LED6, LED10, LED12, after 5 series resistance R11 of pin
The output end of LED1, LED2, LED5 and the input terminal of LED6 are connected, connects LED7, LED8, LED9 after 9 series resistance R10 of pin
Output end and LED10 input terminal, the output end and LED12 of LED3, LED4, LED11 are connected after 12 series resistance R9 of pin
Input terminal.
Preferably, first operating mode includes at least: functional mode, delay mode, close pattern, weave mode
And/or wind speed mode, the wind speed mode include at least environmentally friendly gear, low gear, middling speed gear and/or high gear.
Preferably, the motor-drive circuit drives the fan when first operating mode is weave mode
It swings, otherwise it is failure that the LED in the LED indicating circuit, which is normal when all lighting,.
Preferably, the motor-drive circuit stops working, described when first operating mode is close pattern
LED1 is normal when extinguishing, and is otherwise failure.
Preferably, the motor-drive circuit stops working, described when first operating mode is functional mode
It is normal that LED2, LED3, LED4, which successively extinguish, is otherwise failure.
Preferably, the motor-drive circuit stops working, described when first operating mode is delay mode
It is normal that LED5, LED6, LED7, LED8, which successively extinguish, is otherwise failure.
Preferably, when first operating mode is wind speed mode, the motor-drive circuit work, the environmental protection shelves
Position, low gear, middling speed gear and/or high gear are closed after successively start, correspondence LED9, LED10, LED11 and/or
It is normal that LED12 successively extinguishes when environmentally friendly gear, low gear, middling speed gear and/or high gear are closed, and is otherwise event
Barrier.
Preferably, when first operating mode is wind speed mode, further include: the motor-drive circuit work,
Environmentally friendly gear, low gear, when middling speed gear and/or high gear successively start, corresponding LED9, LED10, LED11 and/or
LED12 is successively lit up as normally, is otherwise failure.
The utility model has the following beneficial effects: the utility model discloses a kind of fan detection systems and fan detection side
Method, design LED light can be lighted all simultaneously, and whether very convenient fast decision LED light can normally be lighted, synchronous motor
Whether work normally.Whether phenomena such as avoiding the missing inspection as caused by human negligence, erroneous detection can also check motor-drive circuit
It works normally, easy to operate, judgement is intuitive.
With reference to the accompanying drawing with specific embodiment, the present invention will be further described.
Detailed description of the invention
Fig. 1 is the utility model fan detection system circuit diagram；
Fig. 2 is the circuit diagram that the utility model fan detection system includes buzzer auditory tone cues electric circuit；
Fig. 3 is the utility model motor-drive circuit figure；
Fig. 4 is the LED indicating circuit figure of the utility model；
Fig. 5 is the utility model resistance-capacitance depressurization power supply circuit；
Fig. 6 is the utility model fan detection method flow chart.
Specific embodiment
Embodiment, referring to Fig. 1 and Fig. 5, a kind of fan detection system provided in this embodiment comprising single-chip microcontroller controls core
Piece 1, long-range reception circuit 2, motor-drive circuit 3 and LED indicating circuit 4:
The singlechip control chip 1 receives long-range starting detection program after receiving the sense command that circuit 2 is sent；It obtains
Detection instruction simultaneously issues the first control command and the second control command according to the detection instruction；
The motor-drive circuit 3 receives first control command and the fan is driven to enter the first operating mode；
The LED indicating circuit 4 receives the second control command and drives the LED indicating circuit 4；
The motor-drive circuit 3 and whether corresponding first operating mode of LED indicating circuit 4 are judged, if then institute
It states fan to be detected as normally, if being otherwise detected as failure.Phenomena such as avoiding the missing inspection as caused by human negligence, erroneous detection,
It can check whether motor-drive circuit 3 works normally, easy to operate, judgement is intuitive.
The long-range circuit 2 that receives obtains sense command using wireless transmission method and is sent to singlechip control chip 1, wirelessly
Transmission can be convenient and efficient using modes such as Infrared Transmission, Bluetooth transmissions.
Referring to fig. 2, the fan detection system further includes buzzer auditory tone cues electric circuit 5, the singlechip control chip 1
Long-range starting detection program after receiving the sense command that circuit 2 is sent is received, driving 5 work of buzzer auditory tone cues electric circuit is executed
Make, prompts to enter detection pattern.
The fan detection system further includes resistance-capacitance depressurization power supply circuit 6, referring to Fig. 5, the resistance-capacitance depressurization power supply circuit 6
For powering to entire detection system.The resistance-capacitance depressurization power supply circuit 6 include firewire, zero curve, varistor MOV, resistance R1,
R2, R3, capacitor C1, C2, diode D1, D2 are grounded after zero curve series resistance R3, capacitor C1, diode D2, live wire serial connection fusing
5V voltage is exported after device FUSE, it is in parallel with capacitor C1 after resistance R1, R2 series connection, varistor in parallel is distinguished between firewire and zero curve
MOV, diode D1, capacitor C2, one end of varistor MOV connect resistance R3, the sun of one end connection diode D2 of capacitor C2
Pole, the plus earth of diode D2, the anode of the cathode connection diode D1 of diode D2, the cathode of diode D1 connect motor
Driving circuit.
Present embodiments provide a kind of LED indicating circuit figure, referring to fig. 4, the LED indicating circuit 4 include resistance R9,
R10, R11, RJ1, RJ2 and at least one set LED, the LED are distributed with dot matrix, in which: the input terminal of LED1, LED4, LED8
It is separately connected the pin 3 of the singlechip control chip, the input of LED2, LED3, LED7 are connected after 11 series resistance RJ2 of pin
End, series resistance RJ1 between resistance RJ2 and LED7, the input terminal and LED6 of the connection of pin 6 LED5, LED9, LED11,
The output end of LED10, LED12 connect the input of the output end and LED6 of LED1, LED2, LED5 after 5 series resistance R11 of pin
It holds, the output end of LED7, LED8, LED9 and the input terminal of LED10,12 series resistance of pin is connected after 9 series resistance R10 of pin
The output end of LED3, LED4, LED11 and the input terminal of LED12 are connected after R9, the resistance value of resistance R9, R10, R11 are 300 Ω.
In Fig. 4, LED1 corresponds to the weave mode of fan, and LED2, LED3, LED4 respectively correspond the functional mode of fan, packet
NOR, SLP, NAT Three models are included, LED5, LED6, LED7, LED8 respectively correspond the delay mode of fan, including 1h, 2h, 4h
And 8h, LED9, LED10, LED11, LED12 respectively correspond the wind speed mode of fan, including environmentally friendly gear, low gear, middling speed
Gear, high gear, the present embodiment are not limited to above-described embodiment, functional mode, delay mode, the wind speed mould of the fan
Formula can not only include the above-mentioned type, and operating mode can be accordingly increased or be deleted, and the quantity of LED light can be according to tool
Bulk-mode type does adaptability variation.
The mode that singlechip control chip 1 obtains detection instruction can be wireless transmission method or key control mode.
When using key control mode, key switch circuit (not shown) is can be set in the fan detection system, described to press
Key switch circuit corresponds to fan weave mode equipped with Swinging switch, which corresponds to fan functionality mode equipped with function
Switch, the key switch circuit correspond to fan delay mode equipped with delay switch, which corresponds to fan wind speed mould
Formula is equipped with Wind speed switch, and singlechip control chip 1 is according to the switch control of key switch circuit acquisition detection instruction and according to institute
It states detection instruction and issues the first control command and the second control command.
Referring to Fig. 3, the motor-drive circuit 3 includes interface CON1 and bidirectional triode thyristor, and the bidirectional triode thyristor is at least
Including silicon-controlled Q1, Q2, Q3, Q4 and/or Q5, the first anode of silicon-controlled Q1, Q2, Q3, Q4, Q5 are all connected with interface CON1, should
The second plate of silicon-controlled Q1, Q2, Q3, Q4, Q5 are all connected with the cathode of diode D1, the control electrode series resistance R4 of silicon-controlled Q1
Connect 1 pin 19 of singlechip control chip, the control electrode series resistance R5 connection pin 15 of silicon-controlled Q2, the control of silicon-controlled Q3
Pole series resistance R6 connection pin 16, the control electrode series resistance R7 connection pin 17 of silicon-controlled Q4, the control electrode of silicon-controlled Q5
Series resistance R8 connection pin 18, the resistance value of resistance R4, R5, R6, R7, R8 are 820 Ω.
First operating mode includes at least: functional mode, delay mode, close pattern, weave mode and/or wind speed
Mode, the wind speed mode include at least environmentally friendly gear, low gear, middling speed gear and/or high gear, certainly, this implementation
Example is not limited to aforesaid way, and first operating mode can not only include the above-mentioned type, between specific works mode
It can accordingly increase or be applied in combination, silicon-controlled Q1, Q2, Q3, Q4, Q5 respectively correspond control motor environmental protection gear, low
The swing gear of fast gear, middling speed gear, high gear and weave mode, the first operating mode can be set according to practical fan structure
It is set to cycle detection, it is convenient and efficient.Functional mode, delay mode, close pattern, weave mode can also be arranged in the present embodiment
And/or the environmentally friendly gear of wind speed mode, low gear, middling speed gear and/or high gear work before, singlechip control chip 1
Time delay command is obtained, judges whether to enter subsequent work mode.The time delay command can be set to 3 seconds, it is not timed out cannot be into
Enter subsequent work mode, can effectively prevent jumping test, test leakage examination.
When first operating mode is weave mode, first control command is the work of motor weave mode, is drawn
Foot P18 exports low level, silicon-controlled Q5 input and output foot is connected by 820 Ω resistance of R8, second control command is
LED in LED indicating circuit 4 is all lighted, and singlechip control chip 1 pin P3, P11, P6, P5, P9, P12 pass through scanning element
The mode of battle array, by lighting the LED in LED indicating circuit 4 all after 330 Ω resistance current limliting of current-limiting resistance R9, R10, R11.
Judge that the fan is swung, the swing gear failure of motor-drive circuit when fan is not swung, in the LED indicating circuit 4
It is normal when LED is all lighted, is otherwise failure, non-lit up LED is short circuit.Design LED light can be lighted all simultaneously,
Whether very convenient fast decision LED light can normally be lighted, and whether synchronous motor works normally.
When first operating mode is close pattern, first control command stops working for fan motor, draws
The red 820 Ω resistance of R8 of crossing of foot P18 output high level closes silicon-controlled Q5, and motor swings gear and closes, singlechip control chip
1 the second control command of sending executes the LED1 for extinguishing and having lighted.Judge that the motor-drive circuit stops working, the LED1 is put out
It is normal when going out, is otherwise failure, when LED indicating circuit 4 is extinguished there are also the LED light in addition to LED1, can determine whether as the LED
Reversal connection.
When first operating mode is functional mode, first control command stops working for fan motor, single
Piece machine control chip 1 issues the execution of the second control command singlechip control chip 1 pin P3, P11, P5, P12 and passes through scanning lattice
Mode, by extinguishing LED2, LED3, LED4 for lighting one by one after 300 Ω resistance current limliting of current-limiting resistance R9, R11.Judgement
The motor-drive circuit stops working, otherwise it is failure that it is normal that described LED2, LED3, LED4, which successively extinguish,.When LED2,
Extinguish simultaneously in LED3, LED4 there are two the above LED, that is, is judged as the LED reversal connection extinguished in advance.
When first operating mode is delay mode, first control command stops working for fan motor, single
Piece machine control chip 1 issues the execution of the second control command singlechip control chip 1 pin P3, P11, P5, P6, P9 and passes through scanning element
The mode of battle array, by putting out LED5, LED6, LED7, LED8 for lighting one by one after current-limiting resistance R10, R11300 Ω resistance current limliting
It goes out.Judge that the motor-drive circuit stops working, described LED5, LED6, LED7, LED8 successively extinguish be it is normal, otherwise for
Failure.When extinguishing simultaneously in LED5, LED6, LED7, LED8 there are two the above LED, that is, it is judged as the LED reversal connection extinguished in advance.
When first operating mode is wind speed mode, the first control command controls fan motor environmental protection gear, low speed
Gear, middling speed gear and/or high gear are closed after successively starting, and singlechip control chip 1 issues the second control command and executes
Singlechip control chip 1 pin P11, P5, P9, P12 pass through current-limiting resistance R9, R10 300 Ω electricity by way of scanning lattice
Extinguish LED9, LED10, LED11, LED12 for lighting one by one after resistance current limliting.
Specific manifestation are as follows: 1 pin P19 low level of singlechip control chip is connected silicon-controlled Q1 by 820 Ω of R4, electricity
The work of machine environmental protection gear, then P19 level inverts, and motor environmental protection gear is closed；It is low to execute 1 pin P15 of singlechip control chip
Silicon-controlled Q2 is connected by 820 Ω of R5 in level, and the work of fan motor low gear, then P15 level inverts, motor low speed
Gear is closed；1 pin P16 low level of singlechip control chip is executed, silicon-controlled Q3 is connected by 820 Ω of R6, motor middling speed
Gear work, then P16 level inverts, and motor middling speed gear is closed；Execute 1 pin P17 low level of singlechip control chip, warp
Crossing 820 Ω of R7 is connected silicon-controlled Q4, and the work of motor high gear, then P17 level inverts, and motor high gear is closed.Sentence
The motor-drive circuit that breaks works, and corresponding LED9, LED10, LED11 and/or LED12 are in environmentally friendly gear, low gear, middling speed
It is normal that gear and/or high gear are successively extinguished when closing, and is otherwise failure.When having in LED9, LED10, LED11, LED12
More than two LED extinguish simultaneously, that is, are judged as the LED reversal connection extinguished in advance.
Preferably, motor high gear executes single-chip microcontroller pin P17 low level after closing, make controllably by 820 Ω of R7
Silicon Q4 conducting, the work of motor high gear, singlechip control chip 1 pass through current-limiting resistance R9 by way of scanning lattice
LED12 is lighted after 300 Ω resistance current limlitings.
Preferably, first operating mode be wind speed mode when, further include: LED9, LED10, LED11 and/or
After LED12 successively extinguishes when environmentally friendly gear, low gear, middling speed gear and/or high gear are closed, the first control life
Enabling is motor environmental protection gear, and low gear, middling speed gear and/or high gear successively start, and singlechip control chip 1 issues the
Two control commands execute corresponding LED9, LED10, LED11 and/or LED12 and successively light, and judge motor environmental protection gear, low
Fast gear, middling speed gear and/or high gear successively start, it is corresponding it is single led be normal when lighting respectively, be otherwise failure.
Specific manifestation are as follows: environmentally friendly gear start when, singlechip control chip 1 pin P6, P9 by way of scanning lattice,
By lighting LED9 after current-limiting resistance R10,300 Ω resistance current limliting；When low gear starts, singlechip control chip 1 is executed
Pin P6, P9 are by way of scanning lattice, by current-limiting resistance R10, light LED10 after 300 Ω resistance current limlitings；Mid ranger
When the starting of position, singlechip control chip 1 pin P6, P12 are executed by way of scanning lattice, passes through current-limiting resistance R9,300 Ω
LED11 is lighted after resistance current limliting；When high gear starts, executes singlechip control chip 1 pin P6, P12 and pass through scanning element
The mode of battle array lights LED12 after 300 Ω resistance current limlitings by current-limiting resistance R9.4 gears can automatically switch, two circulations
It can check whether corresponding LED normally can extinguish and light, thus judge fault condition, can also check that motor-drive circuit 3 is
No normal work.Easy to operate, judgement is intuitive.
Using the fan detection method of the utility model, referring to Fig. 6 comprising:
Fan powers on, and singlechip control chip 1 receives sense command, and starting detection program executes detection pattern；
Singlechip control chip 1 obtains detection instruction and issues the first control command and the second control according to the detection instruction
System order；
Motor-drive circuit 3 receives the first control command and the fan is driven to enter the first operating mode；
LED indicating circuit 4 receives the second control command and drives the LED indicating circuit 4；
Judge whether the LED indicating circuit 4 corresponds to the first operating mode, if then the fan is detected as normally, if
Otherwise it is detected as failure.
First operating mode includes at least: functional mode, delay mode, close pattern, weave mode and/or wind speed
Mode, the first operating mode can be set as cycle detection according to practical fan structure, convenient and efficient.After the completion of test, fan is disconnected
Electricity, this detection method is convenient and simple practical, greatly reduces (erroneous judgement) rate of failing to judge, and the testing time is greatly decreased, detection production
Informant person simplifies, effectively saving enterprise's production cost.
The utility model discloses a kind of fan detection systems, and designing LED light can all light simultaneously, easily fast
Victory judges whether LED light can normally be lighted, and whether synchronous motor works normally.Avoid the leakage as caused by human negligence
Phenomena such as inspection, erroneous detection, it can also check whether motor-drive circuit works normally, easy to operate, judgement is intuitive.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation.Anyone skilled in the art, it is all available in the case where not departing from technical solutions of the utility model ambit
The technological means and technology contents of the disclosure above make many possible changes and modifications to technical solutions of the utility model, or repair
It is changed to the equivalent embodiment of equivalent variations.Therefore all contents without departing from technical solutions of the utility model, according to the utility model
Construction and principle made by equivalence changes, should all be covered by the protection scope of the utility model.
Claims (9)
1. a kind of fan detection system, which is characterized in that including singlechip control chip, remotely receive circuit, motor driven electricity
Road and LED indicating circuit:
The singlechip control chip receives long-range starting detection program after receiving the sense command that circuit is sent；Detection is obtained to refer to
It enables and the first control command and the second control command is issued according to the detection instruction；
The motor-drive circuit receives first control command and the fan is driven to enter the first operating mode；
The LED indicating circuit receives the second control command and drives the LED indicating circuit；
The motor-drive circuit and whether corresponding first operating mode of LED indicating circuit are judged, if the then fan
It is detected as normally, if being otherwise detected as failure.
2. fan detection system according to claim 1, it is characterised in that: the LED indicating circuit include resistance R9,
R10, R11, RJ1, RJ2 and at least one set LED, the LED are distributed with dot matrix, in which: the input terminal of LED1, LED4, LED8
It is separately connected the pin 3 of the singlechip control chip, the input of LED2, LED3, LED7 are connected after 11 series resistance RJ2 of pin
End, series resistance RJ1 between resistance RJ2 and LED7, the input terminal and LED6 of the connection of pin 6 LED5, LED9, LED11,
The output end of LED10, LED12 connect the input of the output end and LED6 of LED1, LED2, LED5 after 5 series resistance R11 of pin
It holds, the output end of LED7, LED8, LED9 and the input terminal of LED10,12 series resistance of pin is connected after 9 series resistance R10 of pin
The output end of LED3, LED4, LED11 and the input terminal of LED12 are connected after R9.
3. fan detection system according to claim 2, it is characterised in that: first operating mode includes at least: function
Energy mode, delay mode, close pattern, weave mode and/or wind speed mode, the wind speed mode include at least environmentally friendly gear,
Low gear, middling speed gear and/or high gear.
4. fan detection system according to claim 3, it is characterised in that: when first operating mode is weave mode
When, the motor-drive circuit drives the fan to swing, the LED in the LED indicating circuit be when all lighting it is normal, it is no
It is then failure.
5. fan detection system according to claim 4, it is characterised in that: when first operating mode is close pattern
When, the motor-drive circuit stops working, otherwise it is failure that the LED1, which is normal when extinguishing,.
6. fan detection system according to claim 4, it is characterised in that: when first operating mode is functional mode
When, the motor-drive circuit stops working, otherwise it is failure that it is normal that described LED2, LED3, LED4, which successively extinguish,.
7. fan detection system according to claim 4, it is characterised in that: when first operating mode is delay mode
When, the motor-drive circuit stops working, otherwise it is failure that it is normal that described LED5, LED6, LED7, LED8, which successively extinguish,.
8. fan detection system according to claim 4, it is characterised in that: first operating mode is wind speed mode
When, motor-drive circuit work, the environmental protection gear, low gear, after middling speed gear and/or high gear successively start
It closes, corresponding LED9, LED10, LED11 and/or LED12 are in environmentally friendly gear, low gear, middling speed gear and/or high gear
It is normal for successively extinguishing when closing, is otherwise failure.
9. fan detection system according to claim 8, it is characterised in that: first operating mode is wind speed mode
When, further include: the motor-drive circuit work, the environmental protection gear, low gear, middling speed gear and/or high gear
When successively starting, otherwise it is failure that corresponding LED9, LED10, LED11 and/or LED12, which are successively lit up as normally,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568034.0U CN208997007U (en) | 2018-09-25 | 2018-09-25 | A kind of fan detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568034.0U CN208997007U (en) | 2018-09-25 | 2018-09-25 | A kind of fan detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997007U true CN208997007U (en) | 2019-06-18 |
Family
ID=66801083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821568034.0U Expired - Fee Related CN208997007U (en) | 2018-09-25 | 2018-09-25 | A kind of fan detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208997007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139528A (en) * | 2018-09-25 | 2019-01-04 | 东莞市觅智实业有限公司 | A kind of fan detection system and detection method |
-
2018
- 2018-09-25 CN CN201821568034.0U patent/CN208997007U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139528A (en) * | 2018-09-25 | 2019-01-04 | 东莞市觅智实业有限公司 | A kind of fan detection system and detection method |
| CN109139528B (en) * | 2018-09-25 | 2024-03-22 | 东莞市觅智智能家居有限公司 | Fan detection system and detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205080242U (en) | Power strip function test system | |
| CN208997007U (en) | A kind of fan detection system | |
| CN104941103B (en) | A kind of power model detection means of ship's fire fighting control system | |
| CN101113998B (en) | Circuit for automatically detecting creepage protecting socket electrifying whether or not end of life | |
| CN203224610U (en) | Motormeter light automatic tester | |
| CN109139528A (en) | A kind of fan detection system and detection method | |
| CN204836730U (en) | Emergency light | |
| CN204314438U (en) | A kind of battery electric quantity detects and storing unit | |
| CN206209029U (en) | Metal spring leaf contact condition detection means | |
| CN206114824U (en) | Low -cost fuse supervisory circuits | |
| CN2930044Y (en) | Automatically detecting if life terminal circuit for leakage protective socket | |
| CN203590038U (en) | Thermal battery simulating device | |
| CN204269795U (en) | Power supply automatic detecting equipment | |
| CN204203402U (en) | A kind of proving installation of sleeve of main transformer current transformer polarity | |
| CN104780637B (en) | A kind of control circuit and lighting device | |
| CN201263012Y (en) | Voltage indicating circuit device for power socket converter | |
| CN206096276U (en) | Wrong looks open -phase detecting circuit of three phase current | |
| CN202868330U (en) | Flashlight displaying electric quantity by striking | |
| CN207070396U (en) | Automobile-used day row, position, the multiplexing drive circuit of steering indicating light | |
| CN204595156U (en) | Middle frequency furnace transistors breakdown detects and counts the road that conducts electricity | |
| CN104279837A (en) | Power restoration time delay contactless protection device for electric refrigerator | |
| CN204791552U (en) | Signal lamp that possesses ambient brightness self -adaptation and error detection function | |
| CN205562663U (en) | Test nearly electric alarm of electric type | |
| CN204100703U (en) | Refrigerator incoming call time delay contactless protector | |
| CN203811734U (en) | Network tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20210925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |