CN207075042U - A kind of cell phone back tabula rasa detects tool - Google Patents
A kind of cell phone back tabula rasa detects tool Download PDFInfo
- Publication number
- CN207075042U CN207075042U CN201720278874.2U CN201720278874U CN207075042U CN 207075042 U CN207075042 U CN 207075042U CN 201720278874 U CN201720278874 U CN 201720278874U CN 207075042 U CN207075042 U CN 207075042U
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- CN
- China
- Prior art keywords
- switch
- backlight
- electrode contact
- circuit wafer
- current regulator
- 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
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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The utility model provides a kind of cell phone back tabula rasa detection tool, including backlight clamping plate, power supply adaptor, the horizontal active grab being arranged on backlight clamping plate, the current regulator being arranged on backlight clamping plate and the lower circuit wafer being arranged in backlight, the chuck of the horizontal active grab is provided with upper circuit wafer, the lower circuit wafer forms jaws with the upper circuit wafer, the top surface of the lower circuit wafer is provided with bottom electrode contact, and the bottom surface of the upper circuit wafer is provided with the Top electrode contact corresponding with the bottom electrode contact.The electric current of power supply adaptor output of the present utility model is stable, makes backlight stable luminescence, so as to eliminate the risk that electric current crosses conference and causes backlight damage, is also prevented from that the too small situation of electric current occurs；The electric current that the needs can be adjusted additionally by current regulator carrys out the different backlight of suitable power, versatile.
Description
Technical field
A kind of backlight detection tool is the utility model is related to, more particularly to a kind of cell phone back tabula rasa detection tool.
Background technology
Cell phone back tabula rasa needs to detect its luminous component before fitting together with display screen, touch-screen, passes through
Tool makes backlight light, and whether artificial detection luminous component is luminous normal, if has white point, stain, light leak, bright border and foreign matter
Etc..Weak point is that this tool includes clamping bench and battery pack, and battery pack is directly connected with backlight provides power supply, battery
Group needs to charge after being finished electricity using amount of batteries decline, electric current and spread of voltage after a period of time, and this battery pack
It can just reuse；The electric current and voltage of battery pack are sometimes unstable, have following risk：Electric current crosses conference and backlight is caused
The risk of damage；Electric current is too small, and the shinny brightness of backlight is low, can influence detection accuracy.
Utility model content
The utility model overcome the deficiencies in the prior art, there is provided a kind of cell phone back tabula rasa detects tool.
It is achieved through the following technical solutions above-mentioned purpose：
A kind of cell phone back tabula rasa detects tool, including backlight clamping plate, power supply adaptor, is arranged on backlight clamping plate
On horizontal active grab, the current regulator being arranged on backlight clamping plate and the lower electricity being arranged in backlight
Road piece, the chuck of the horizontal active grab are provided with upper circuit wafer, and the lower circuit wafer forms jaws with the upper circuit wafer,
The top surface of the lower circuit wafer is provided with bottom electrode contact, and the bottom surface of the upper circuit wafer is provided with corresponding with the bottom electrode contact
Top electrode contact, the cathode output end of the power supply adaptor is connected with the electrode input end of the current regulator, described
The cathode output end of power supply adaptor is connected with the negative input of the current regulator, and the current regulator includes switch
S1, switch S2, switch S3, switch S4, connected with the switch S1 resistance R1, connected with the switch S2 resistance R2, and
The resistance R3 of the switch S3 series connection and resistance R4 to be connected with the switch S4, the positive pole input of the current regulator
End is in parallel with switch S1, switch S2, switch S3 and switch S4, cathode output end and resistance R1, the resistance of the current regulator
R2, resistance R3 and resistance R4 are in parallel, the cathode output end of the current regulator and the Top electrode contact portion, the electric current
The cathode output end of adjuster and the bottom electrode contact portion.
Further, in addition to polarity reversing switch, the polarity of electrode input of the polarity reversing switch and the electricity
The polarity of electrode output end connection of throttle regulator, the polarity of electrode output end of the polarity reversing switch respectively with the Top electrode
Contact and bottom electrode contact portion.The polarity of electrode pair of Top electrode contact and bottom electrode contact can be made by polarity reversing switch
Change.
Operation principle of the present utility model is as follows：Backlight is placed on backlight clamping plate, the power supply of backlight is arranged
Line is placed in circuit wafer and lower circuit wafer is formed in jaws, jaws tighten the power supply winding displacement for making backlight electrode input end and
Negative input with Top electrode contact and bottom electrode contact portion and clamping, turns on the power adapter and electric current is passed through into electric current respectively
Adjuster by current regulation to required size of current, then by Top electrode contact and bottom electrode contact effect provide required for
Electric current make backlight shinny to the power supply winding displacement of backlight.
The beneficial effects of the utility model are：By above structure, the electric current of power supply adaptor output is stable, makes backlight
Stable luminescence, so as to eliminate the risk that electric current crosses conference and causes backlight damage, it is also prevented from that the too small situation of electric current occurs；Separately
The electric currents of the needs can be adjusted by current regulator outside come the different backlight of suitable power, it is versatile.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the positional structure schematic diagram of circuit wafer and lower circuit wafer on the utility model；
Fig. 3 is the utility model current regulation circuit figure.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing：
Shown in Fig. 1 to Fig. 3, a kind of cell phone back tabula rasa detects tool, including backlight clamping plate 1, power supply adaptor 2, sets
Put the horizontal active grab 3 on backlight clamping plate, the current regulator 4 being arranged on backlight clamping plate, Yi Jishe
The lower circuit wafer 5 in backlight is put, the chuck 31 of the horizontal active grab 3 is provided with upper circuit wafer 6, the lower circuit wafer
5 form jaws with the upper circuit wafer 6, and the top surface of the lower circuit wafer 5 is provided with bottom electrode contact 51, the upper circuit wafer 6
Bottom surface is provided with the Top electrode contact 61 corresponding with the bottom electrode contact 51, the cathode output end of the power supply adaptor 2 with
The electrode input end connection of the current regulator 4, the cathode output end of the power supply adaptor 2 and the current regulator 4
Negative input connection, the current regulator 4 include switch S1, switch S2, switch S3, switch S4, with the switch S1
The resistance R1 of series connection, the resistance R2 to be connected with the switch S2, with the switch S3 resistance R3 to connect and with the switch
The resistance R4 of S4 series connection, the electrode input end of the current regulator 4 is in parallel with switch S1, switch S2, switch S3 and switch S4,
The cathode output end of the current regulator 4 is in parallel with resistance R1, resistance R2, resistance R3 and resistance R4, the current regulator 4
Cathode output end be connected with the Top electrode contact 61, cathode output end and the bottom electrode of the current regulator 4 touch
The connection of point 51.
Further, in addition to polarity reversing switch 7, the polarity of electrode input of the polarity reversing switch 7 with it is described
The polarity of electrode output end connection of current regulator 4, the polarity of electrode output end of the polarity reversing switch 7 respectively with it is described on
Electrode contacts 61 and bottom electrode contact 51 connect.The electrode of Top electrode contact and bottom electrode contact can be made by polarity reversing switch
Polarity is exchanged.
Operation principle of the present utility model is as follows：Backlight is placed on backlight clamping plate, the power supply of backlight is arranged
Line is placed in circuit wafer and lower circuit wafer is formed in jaws, jaws tighten the power supply winding displacement for making backlight electrode input end and
Negative input with Top electrode contact and bottom electrode contact portion and clamping, turns on the power adapter and electric current is passed through into electric current respectively
Adjuster by current regulation to required size of current, then by Top electrode contact and bottom electrode contact effect provide required for
Electric current make backlight shinny to the power supply winding displacement of backlight.
It the above is only preferred embodiment of the present utility model, the scope of protection of the utility model is not limited merely to above-mentioned
Embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should be pointed out that pair
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from,
It should be regarded as the scope of protection of the utility model.
Claims (2)
1. a kind of cell phone back tabula rasa detects tool, including backlight clamping plate, power supply adaptor and horizontal active grab,
It is characterised in that it includes the current regulator being arranged on backlight clamping plate and the lower circuit wafer being arranged in backlight,
The horizontal active grab is arranged on the backlight clamping plate, and the chuck of the horizontal active grab is provided with upper circuit
Piece, the lower circuit wafer and the upper circuit wafer form jaws, and the top surface of the lower circuit wafer is provided with bottom electrode contact, it is described on
The bottom surface of circuit wafer is provided with the Top electrode contact corresponding with the bottom electrode contact, the cathode output end of the power supply adaptor
It is connected with the electrode input end of the current regulator, the cathode output end of the power supply adaptor and the current regulator
Negative input connects, and the current regulator includes switch S1, switch S2, switchs S3, switch S4, connected with the switch S1
Resistance R1, connected with the switch S2 resistance R2, with the switch S3 resistance R3 to connect and with the switch S4 go here and there
The resistance R4 of connection, the electrode input end of the current regulator is in parallel with switch S1, switch S2, switch S3 and switch S4, described
The cathode output end of current regulator is in parallel with resistance R1, resistance R2, resistance R3 and resistance R4, the positive pole of the current regulator
Output end and the Top electrode contact portion, the cathode output end of the current regulator and the bottom electrode contact portion.
A kind of 2. cell phone back tabula rasa detection tool according to claim 1, it is characterised in that：Also include polarity reversing switch,
The polarity of electrode input of the polarity reversing switch is connected with the polarity of electrode output end of the current regulator, the polarity
The polarity of electrode output end of change-over switch respectively with the Top electrode contact and bottom electrode contact portion.Pass through polarity reversing switch
Can exchange the polarity of electrode of Top electrode contact and bottom electrode contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720278874.2U CN207075042U (en) | 2017-03-22 | 2017-03-22 | A kind of cell phone back tabula rasa detects tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720278874.2U CN207075042U (en) | 2017-03-22 | 2017-03-22 | A kind of cell phone back tabula rasa detects tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207075042U true CN207075042U (en) | 2018-03-06 |
Family
ID=61513519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720278874.2U Expired - Fee Related CN207075042U (en) | 2017-03-22 | 2017-03-22 | A kind of cell phone back tabula rasa detects tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207075042U (en) |
-
2017
- 2017-03-22 CN CN201720278874.2U patent/CN207075042U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180301 Address after: Guangdong province Dongguan City Chashan town 523000 Zengbu village Lu Wu Dong Cheng Huimei Technology Park Patentee after: DONGGUAN DONGCHEN INDUSTRIAL CO., LTD. Address before: Guangdong province Dongguan City Chashan town 523000 Zengbu village Lu Wu Dong Cheng Huimei Science Park building A Patentee before: Guangdong Dongcheng Photoelectric Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180306 Termination date: 20210322 |