CN105467251B - Air conditioner element testing instrument - Google Patents
Air conditioner element testing instrument Download PDFInfo
- Publication number
- CN105467251B CN105467251B CN201511002473.6A CN201511002473A CN105467251B CN 105467251 B CN105467251 B CN 105467251B CN 201511002473 A CN201511002473 A CN 201511002473A CN 105467251 B CN105467251 B CN 105467251B
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- China
- Prior art keywords
- detection
- power supply
- grafting block
- detection unit
- chip
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Classifications
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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
-
- 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
- G01R31/40—Testing power supplies
Abstract
The invention discloses a kind of air conditioner element testing instrument, include the current conversion unit being connect with power supply, driving chip detection unit, power supply chip detection unit, three terminal regulator detection unit and voltmeter；The driving chip detection unit, power supply chip detection unit and three terminal regulator detection unit are electrically connected with current conversion unit respectively；The power supply chip detection unit and three terminal regulator detection unit are electrically connected with a voltmeter by selecting switch or each one voltmeter of connection of the power supply chip detection unit and three terminal regulator detection unit；Advantage is to devise for analog-driven chip, power supply chip and three terminal regulator the running environment in air conditioner, and it is additionally arranged the operating voltage of voltmeter detection power supply chip and three terminal regulator, to accurately judge whether driving chip, power supply chip and three terminal regulator can work normally.
Description
Technical field
The present invention relates to a kind of detecting instruments, more particularly, to a kind of air conditioner element testing instrument.
Background technology
Air conditioner is mainly run by the control of driving chip and power supply chip in control circuit board, in circuit operational process
Then need three terminal regulator steady voltage.Caused by the damage of air conditioner is often as voltage instability, generally by driving chip,
The damage of three kinds of electronic components of power supply chip or three terminal regulator causes.In existing air-conditioner repair, ten thousand can only be passed through
The short circuit or open circuit of energy table detection circuit not can determine that driving chip, power supply chip and three ends are steady it is difficult to find specific reason
Whether depressor can work normally, and many inconvenience are brought to the repair of air conditioner.
Invention content
Technical problem to be solved by the invention is to provide one kind capable of detecting driving chip, power supply chip and three-terminal voltage-stabilizing
The air conditioner element testing instrument whether device works normally.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of air conditioner element testing instrument, including with
Power supply connection current conversion unit, driving chip detection unit, power supply chip detection unit, three terminal regulator detection unit and
Voltmeter；The driving chip detection unit, power supply chip detection unit and three terminal regulator detection unit turn with electric current respectively
Change unit electrical connection；The power supply chip detection unit and three terminal regulator detection unit pass through selecting switch and voltmeter electricity
Connection or the power supply chip detection unit and three terminal regulator detection unit respectively connect a voltmeter.
Preferably, the current conversion unit include the AC-DC conversion circuits being connect with power supply and with 5V, 12V,
The switching mode power supply transformer of 15V output ends；The driving chip detection unit includes the time relay being connect with power supply, driving
Chip detects grafting block and 7 display lamps；The time relay respectively with AC-DC conversion circuits, switching mode power supply transformer 12V
Output end and driving chip detection grafting block electrical connection, driving chip detection grafting block respectively with switching mode power supply transformer
12V output ends and 7 display lamp electrical connections.The circuit conversion that driving chip is controlled by the time relay, by 7 display lamps
Showing bright situation can judge whether driving chip various functions can be with normal operations.
Preferably, the three terminal regulator detection unit includes being connect with switching mode power supply transformer 15V output ends
7812 three terminal regulators detection grafting block, the 7805 three terminal regulators detection being connect with switching mode power supply transformer 12V output ends are inserted
Connect block, 1117 three terminal regulators being connect with switching mode power supply transformer 5V output ends detection grafting block；7812 three-terminal voltage-stabilizing
Device detection grafting block, 7805 three terminal regulators detection grafting block and 1117 three terminal regulators detection grafting block are opened by selection respectively
Pass is electrically connected with voltmeter.
Preferably, the power supply chip detection unit includes the 22A chips detection grafting being connect with AC-DC conversion circuits
Block and 22A chip peripheries circuit, 161 chips detection grafting block and 161 chip periphery circuits, 177 chips detect grafting block and 177
Chip periphery circuit and 278 chips detection grafting block and 278N chip peripheries circuit and four choosing switches；The 22A chips inspection
Grafting block, 161 chips detection grafting block, 177 chips detection grafting block and 278N chips detection grafting block are surveyed respectively by four choosings
Switch and selecting switch are electrically connected with voltmeter.
Compared with the prior art, the advantages of the present invention are as follows devise to be used for analog-driven chip, power supply chip and three ends
Voltage-stablizer running environment in air conditioner, and it is additionally arranged the operating voltage of voltmeter detection power supply chip and three terminal regulator, from
And accurately judge whether driving chip, power supply chip and three terminal regulator can work normally.
As an improvement, the time relay, driving chip detection grafting block, 7 display lamps, 22A chips detect grafting
Block, 161 chips detection grafting block, 177 chips detection grafting block, 278N chips detection grafting block, four choosing switches, 7,812 3 ends are steady
Depressor detects grafting block, 7805 three terminal regulators detection grafting block, 1117 three terminal regulators detection grafting block, selecting switch and electricity
Table is pressed to be mounted on the same side of detector shell.
As an improvement, the circuit that the AC-DC conversion circuits and the time relay are connect with power supply is equipped with overcurrent protection
Device.
As an improvement, further including display lamp detection inserted block, 7 display lamps are plugged on display lamp detection inserted block.
As an improvement, further include relay contact adhesion detection unit, the relay contact adhesion detection unit with
Current conversion unit is electrically connected.
Preferably, the relay contact adhesion detection unit includes being connect with switching mode power supply transformer 12V output ends
20A relay tests inserted block and its state display lamp and 5A-10A relay tests inserted block and its state display lamp.
Description of the drawings
Fig. 1 is the stereogram of the present invention.
Fig. 2 is the circuit block diagram of the present invention.
Fig. 3 is the circuit diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
This preferred embodiment is as shown in Figures 1 to 3 a kind of air conditioner element testing instrument, includes that the electric current being connect with power supply turns
Change unit 1, driving chip detection unit 2, power supply chip detection unit 3, three terminal regulator detection unit 4 and voltmeter 5；Driving
Chip detection unit 2, power supply chip detection unit 3 and three terminal regulator detection unit 4 are electrically connected with current conversion unit 1 respectively
It connects；Power supply chip detection unit 3 and three terminal regulator detection unit 4 are electrically connected by selecting switch 6 with a voltmeter 5, or
Power supply chip detection unit 3 and three terminal regulator detection unit 4 respectively connect a voltmeter 5.
In the present embodiment, current conversion unit 1 include the AC-DC conversion circuits 11 being connect with power supply and with 5V,
The switching mode power supply transformer 12 of 12V, 15V output end；Driving chip detection unit 2 includes the time relay being connect with power supply
21, driving chip detection grafting block 22 and 7 display lamps 24；The time relay 21 is electric with AC-DC conversion circuits 11, switch respectively
Source transformer 12V output ends and driving chip detection grafting block 22 are electrically connected, driving chip detect grafting block 22 respectively with switch
Power transformer 12V output ends and 7 display lamps 24 are electrically connected.Wherein, driving chip detection grafting block 22 is 2003 driving cores
Piece socket can also be changed to other driving chip sockets.In addition, further including that display lamp detection 23,7 display lamps 24 of inserted block are inserted
Be connected on display lamp detection inserted block 23 on, can inverse detection display lamp 24 whether can work normally.
Three terminal regulator detection unit 4 includes 7812 three terminal regulators being connect with switching mode power supply transformer 15V output ends
Detection grafting block 41, the 7805 three terminal regulators detection grafting block 42 being connect with switching mode power supply transformer 12V output ends and switch
The 1117 three terminal regulators detection grafting block 43 of power transformer 5V output ends connection；7812 three terminal regulators detect grafting block
41,7805 three terminal regulators detection grafting block 42 and 1117 three terminal regulators detection grafting block 43 respectively by selecting switch 6 with
Voltmeter 5 is electrically connected.Wherein, the normal output voltage of 7812 three terminal regulators is 12V, the normal output of 7805 three terminal regulators
Voltage is 5V, and the normal output voltage of 1117 three terminal regulators is 3.3V.
Power supply chip detection unit 3 includes the 22A chips detection grafting block 32 and 22A being connect with AC-DC conversion circuits 11
Chip periphery circuit 31,161 chips detection grafting block 34 and 161 chip periphery circuits 33,177 chips detection grafting block 36 and
177 chip periphery circuits 35 and 278 chips detection grafting block 38 and 278N chip peripheries circuit 37 and four select switch 39；22A
Chip detects grafting block 32,161 chips detection grafting block 34,177 chips detection grafting block 36 and 278N chips and detects grafting block
38 are electrically connected by four choosing switches 39 and selecting switch 6 with voltmeter 5 respectively.The normal working voltage of power supply chip is 15V.
The time relay 21,22,7 display lamps 24 of driving chip detection grafting block, 22A chips detection grafting block 32,161
Chip detects grafting block 34,177 chips detection grafting block 36,278N chips detection grafting block 38, four and selects switch 39,7,812 3 ends
Voltage-stablizer detects grafting block 41,7805 three terminal regulators detection grafting block 42,1117 three terminal regulators detection grafting block 43, selection
Switch 6 and voltmeter 5 are mounted on the same side of detector shell；Global design neat and tidy is also convenient for operating.Wherein,
Voltmeter 5 is digital display voltmeter.
Further include relay contact adhesion detection unit 7, relay contact adhesion detection unit 7 and switching mode power supply transformer
12 12V output ends electrical connection.Relay contact adhesion detection unit 7 includes that 20A relay tests inserted block 71 and its state are aobvious
Show that lamp and 5A-10A relay tests inserted block 72 and its state display lamp, the right end of relay test inserted block are equipped with the contact closed up
Folder, can judge whether relay coil is normal, then passes through state by the sound sent out in relay coil insertion process
Whether display lamp detects relay contact normal.Relay is used to prevent the impact of high current, can protect driving chip and electricity
The important electronic devices such as source chip, the normal work of relay can ensure the minimum damage of air conditioner.
The circuit that AC-DC conversion circuits 11 and the time relay 21 are connect with power supply be equipped with overcurrent protector 8, prevent by
Caused short circuit causes detector after driving chip, display lamp, power supply chip, three terminal regulator or the relay for being inserted into damage
Damage.
Claims (6)
1. a kind of air conditioner element testing instrument, it is characterised in that：Include the current conversion unit (1) being connect with power supply, driving core
Piece detection unit (2), power supply chip detection unit (3), three terminal regulator detection unit (4) and voltmeter (5)；The driving core
Piece detection unit (2), power supply chip detection unit (3) and three terminal regulator detection unit (4) respectively with current conversion unit (1)
Electrical connection；The power supply chip detection unit (3) and three terminal regulator detection unit (4) pass through selecting switch (6) and a voltage
Table (5) electrical connection or the power supply chip detection unit (3) and three terminal regulator detection unit (4) respectively connect a voltage
Table (5), the current conversion unit (1) include the AC-DC conversion circuits (11) being connect with power supply and have 5V, 12V, 15V defeated
The switching mode power supply transformer (12) of outlet；The driving chip detection unit (2) includes the time relay being connect with power supply
(21), driving chip detection grafting block (22) and 7 display lamps (24)；The time relay (21) is converted with AC-DC respectively
Circuit (11), switching mode power supply transformer (12) 12V output ends and driving chip detection grafting block (22) are electrically connected, the driving core
Piece detection grafting block (22) is electrically connected with switching mode power supply transformer (12) 12V output ends and 7 display lamps (24) respectively, and described three
End voltage-stablizer detection unit (4) includes the 7812 three terminal regulators detection being connect with switching mode power supply transformer (12) 15V output ends
Grafting block (41), 7805 three terminal regulators being connect with switching mode power supply transformer (12) 12V output ends detection grafting block (42), with
The 1117 three terminal regulators detection grafting block (43) of switching mode power supply transformer (12) 5V output ends connection；7812 three-terminal voltage-stabilizing
Device detects grafting block (41), 7805 three terminal regulators detection grafting block (42) and 1117 three terminal regulators detection grafting block (43) point
It is not electrically connected with voltmeter (5) by selecting switch (6), the power supply chip detection unit (3) includes and AC-DC conversion circuits
(11) connect 22A chips detection grafting block (32) and 22A chip peripheries circuit (31), 161 chips detection grafting block (34) and
161 chip periphery circuits (33), 177 chips detection grafting block (36) and 177 chip periphery circuits (35) and the detection of 278 chips are inserted
Connect block (38) and 278N chip peripheries circuit (37) and four choosing switches (39)；The 22A chips detection grafting block (32), 161
Chip detects grafting block (34), 177 chips detection grafting block (36) and 278N chips detection grafting block (38) respectively by four choosings
Switch (39) and selecting switch (6) are electrically connected with voltmeter (5).
2. air conditioner element testing instrument according to claim 1, it is characterised in that：The time relay (21), driving
Chip detect grafting block (22), 7 display lamps (24), 22A chips detection grafting block (32), 161 chips detection grafting block (34),
177 chips detect grafting block (36), 278N chips detection grafting block (38), four choosing switches (39), the detection of 7812 three terminal regulators
Grafting block (41), 7805 three terminal regulators detection grafting block (42), 1117 three terminal regulators detection grafting block (43), selecting switch
(6) it is mounted on the same side of detector shell with voltmeter (5).
3. air conditioner element testing instrument according to claim 1, it is characterised in that：The AC-DC conversion circuits (11) and
The circuit that the time relay (21) is connect with power supply is equipped with overcurrent protector (8).
4. air conditioner element testing instrument according to claim 1, it is characterised in that：It further include display lamp detection inserted block
(23), 7 display lamps (24) are plugged on display lamp detection inserted block (23).
5. air conditioner element testing instrument according to claim 1, it is characterised in that：It further include relay contact adhesion detection
Unit (7), the relay contact adhesion detection unit (7) are electrically connected with current conversion unit (1).
6. air conditioner element testing instrument according to claim 5, it is characterised in that：The relay contact adhesion detection is single
First (7) include the 20A relay tests inserted block (71) being connect with switching mode power supply transformer (12) 12V output ends and its status display
Lamp and 5A-10A relay tests inserted block (72) and its state display lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002473.6A CN105467251B (en) | 2015-12-28 | 2015-12-28 | Air conditioner element testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002473.6A CN105467251B (en) | 2015-12-28 | 2015-12-28 | Air conditioner element testing instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105467251A CN105467251A (en) | 2016-04-06 |
| CN105467251B true CN105467251B (en) | 2018-08-31 |
Family
ID=55605169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002473.6A Active CN105467251B (en) | 2015-12-28 | 2015-12-28 | Air conditioner element testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105467251B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193286A (en) * | 1998-12-24 | 2000-07-14 | Matsushita Electric Ind Co Ltd | Fault diagnosing device |
| CN200941158Y (en) * | 2006-08-29 | 2007-08-29 | 珠海格力电器股份有限公司 | Automatic tester for air conditioner electrical box |
| CN201535798U (en) * | 2009-09-18 | 2010-07-28 | 广州松下空调器有限公司 | Abnormal voltage detecting and reporting device |
| CN102354885B (en) * | 2011-08-07 | 2013-01-30 | 东南大学 | Wireless universal air-conditioner remote control socket based on wireless sensor network |
| CN103064001B (en) * | 2011-10-22 | 2016-03-23 | 海信（山东）空调有限公司 | The detection method of variable-frequency compressor driving plate and pick-up unit thereof |
| CN102937532B (en) * | 2012-11-02 | 2016-02-03 | 宁波酷尔特电子科技有限公司 | Intelligent detector of automobile air conditioner |
| CN204360257U (en) * | 2014-12-08 | 2015-05-27 | 中山市马迅电器有限公司 | A kind of air-conditioning voltage stabilizer |
-
2015
- 2015-12-28 CN CN201511002473.6A patent/CN105467251B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105467251A (en) | 2016-04-06 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170428 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Applicant after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Applicant before: Ningbo AUX Group. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |