CN108132435A - A kind of key testing device - Google Patents
A kind of key testing device Download PDFInfo
- Publication number
- CN108132435A CN108132435A CN201810032773.6A CN201810032773A CN108132435A CN 108132435 A CN108132435 A CN 108132435A CN 201810032773 A CN201810032773 A CN 201810032773A CN 108132435 A CN108132435 A CN 108132435A
- Authority
- CN
- China
- Prior art keywords
- button
- light emitting
- emitting diode
- key testing
- buzzer
- 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.)
- Pending
Links
Classifications
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of key testing devices, including key testing circuit, the circuit includes power supply, resistance, buzzer, light emitting diode and button, parallel circuit is formed after the resistance is in parallel with buzzer after connecting with light emitting diode, one end of the parallel circuit is connect with power supply, one end of its other end and button connects, the other end ground connection of button；Pass through above-mentioned setting so that the fingerprint module cost is lower, and insulating properties is more preferable, is provided simultaneously with the characteristics of low in energy consumption.
Description
Technical field
The present invention relates to a kind of key testing devices.
Background technology
At present, various key switches, thin film switch etc., it is very wide in industrial electric, electronic field use, it is in great demand.
The producer of various key switches is produced, due to the differences such as environment, technique, technology, material, the service life of key switch product
It is different.Time-consuming and laborious if switch life is detected by way of artificial detection, testing result is unstable, reliability
It is low.
Notification number is that the patent document of CN202693289U is further studied this, and disclose and " set on stent 1
Compression bar 2 is equipped with, compression bar 2 can reciprocatingly slide with respect to frame body 11, and for pressing keys, switch, compression bar 2 is every up and down reciprocatingly to be slided
Once, can pressing keys, switch it is primary.It is additionally provided with to drive the cam member 31 of the slip of compression bar 2 and connect on stent 1
It is connected to the actuator 32 of cam member 31；32 rotary motion of actuator can be converted to the slip of compression bar 2 by cam member 31,
Cam reciprocating mechanism is simple in structure, reliable, realizes circular motion becoming straight reciprocating motion, is pressed with providing reciprocal test
The power of key.As depicted in figs. 1 and 2, above-mentioned test instrument for keystokes further includes to monitor button, the effective break-make number of switch
First counting relay 41.By taking push button switch as an example.First counting relay 41 may connect to key switch, specifically, open
It is provided with two p-wires below pass, two p-wires are electrically connected to the first counting relay 41, and switch is often pressed one
It is secondary, if switch effectively conducting, the first counting relay 41 increase primary counting, the number of effective break-make is switched with record.
As depicted in figs. 1 and 2, above-mentioned test instrument for keystokes further includes reciprocatingly slides for monitoring 31 turnning circle of cam member or compression bar 2
Second counting relay 42 of number, with the number that record switch is pressed, if number and switch that switch is pressed are effectively logical
Disconnected number is equal, then illustrates the switch during the test without generating failure phenomenon；If it switchs the number being pressed to be more than
The number of effective break-make is switched, then illustrates that switch has failure phenomenon during the test, switch the number being pressed has with switch
Imitate the number that the difference between the number of break-make is failure.It is electrically connected between second counting relay 42 and actuator 32, when
When the numerical value of two counting relays 42 reaches preset value, normally-closed contact 412 disconnects, and actuator 32 powers off and makes actuator 32
Stop.”
However operator can not understand whether button can work normally to above device at work, i.e., its work when can not prompt to grasp
The state of author's button.
Invention content
To overcome drawbacks described above, the invention discloses a kind of key testing devices, it is characterised in that：Including key testing electricity
Road, the circuit include power supply, resistance, buzzer, light emitting diode and button, the resistance connect with light emitting diode after with bee
Parallel circuit is formed after ring device parallel connection, one end of the parallel circuit is connect with power supply, one end connection of the other end and button,
The other end ground connection of button.
Further the rated voltage of the light emitting diode is 3-5V.
Further the resistive impedance is 100-150 Ω.
A kind of key testing device of the present invention has following advantageous effect：
By setting power supply, resistance, buzzer, light emitting diode and button, the button is pressed when button can work normally
Buzzer and light emitting diode will be connected, test button personnel are prompted with light so as to make a sound, it is with obvious effects, and
It is simple and practical.
Description of the drawings
Fig. 1 is existing test instrument for keystokes schematic diagram.
Fig. 2 is the key testing circuit diagram of the present invention.
Reference numeral in figure, 1 stent；2 compression bars；5 photoelectrical couplers；11 frame bodies；12 bottom plates；13 fixed plates；21 block plates；
22 return units；23 adjusting rods；31 cam members；32 actuators；33 catch；321 shafts.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and attached drawing
Product of the present invention is described in further detail.
As shown in the figure, the invention discloses a kind of key testing device,
Including key testing circuit, which includes power supply, resistance, buzzer, light emitting diode and button, the resistance and hair
Parallel circuit is formed after optical diode is in parallel with buzzer after connecting, one end of the parallel circuit is connect with power supply, another
End is connect with one end of button, the other end ground connection of button.By above-mentioned setting, can be worked normally in pressing keys and button
When, buzzer and light emitting diode will be switched on, and be made a sound and light, give the dual prompting of tester with reach more added with
Effect judges the purpose of button performance.
Further the rated voltage of the light emitting diode is 3-5V.
Further the resistive impedance is 100-150 Ω.
A kind of key testing device of the present invention has following advantageous effect：
By setting power supply, resistance, buzzer, light emitting diode and button, the button is pressed when button can work normally
Buzzer and light emitting diode will be connected, test button personnel are prompted with light so as to make a sound, it is with obvious effects, and
It is simple and practical.
The foregoing is only a preferred embodiment of the present invention, not makees limitation in any form to the present invention；It is all
The those of ordinary skill of the industry can be shown in by specification attached drawing and described above and swimmingly implement the present invention；It is but all
Those skilled in the art without departing from the scope of the present invention, using disclosed above technology contents
The equivalent variations of a little variation, modification and evolution made are the equivalent embodiment of the present invention；Meanwhile it is all according to the present invention
The variation, modification and evolution of any equivalent variations made to above example of substantial technological etc., still fall within the present invention's
Within the protection domain of technical solution.
Claims (3)
1. a kind of key testing device, it is characterised in that：Including the key testing circuit, which includes power supply, resistance, buzzing
Device, light emitting diode and button form parallel circuit after the resistance is in parallel with buzzer after connecting with light emitting diode, described
One end of parallel circuit is connect with power supply, one end connection of the other end and button, the other end ground connection of button.
2. a kind of key testing device according to claim 1, it is characterised in that：The rated voltage of the light emitting diode is
3-5V。
3. a kind of key testing device according to claim 2, it is characterised in that：The resistive impedance is 100-150 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032773.6A CN108132435A (en) | 2018-01-13 | 2018-01-13 | A kind of key testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032773.6A CN108132435A (en) | 2018-01-13 | 2018-01-13 | A kind of key testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108132435A true CN108132435A (en) | 2018-06-08 |
Family
ID=62399686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810032773.6A Pending CN108132435A (en) | 2018-01-13 | 2018-01-13 | A kind of key testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108132435A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426499A (en) * | 2020-05-11 | 2020-07-17 | 杭州老板电器股份有限公司 | Method and system for detecting operation reliability of variable frequency range hood |
| CN112014086A (en) * | 2020-08-26 | 2020-12-01 | 黄燕飞 | Circuit switch detects with resistant test equipment that clicks |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429676Y (en) * | 2009-07-09 | 2010-03-24 | 厦门达尔电子有限公司 | Testing device of push-key switch and LED lamp on flexible printed circuit |
| CN101975885A (en) * | 2010-08-24 | 2011-02-16 | 浙江涵普电力科技有限公司 | Comprehensive electric energy detector for direct-current power supplies |
| CN203465396U (en) * | 2013-09-10 | 2014-03-05 | 南京芒冠光电科技股份有限公司 | Power-on detection jig of button switch |
| CN103941179A (en) * | 2013-01-22 | 2014-07-23 | 海洋王（东莞）照明科技有限公司 | Key switch life testing device |
| CN206505161U (en) * | 2017-02-17 | 2017-09-19 | 珠海瑞德电子科技有限公司 | A kind of new and effective key-press status detection circuit |
-
2018
- 2018-01-13 CN CN201810032773.6A patent/CN108132435A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429676Y (en) * | 2009-07-09 | 2010-03-24 | 厦门达尔电子有限公司 | Testing device of push-key switch and LED lamp on flexible printed circuit |
| CN101975885A (en) * | 2010-08-24 | 2011-02-16 | 浙江涵普电力科技有限公司 | Comprehensive electric energy detector for direct-current power supplies |
| CN103941179A (en) * | 2013-01-22 | 2014-07-23 | 海洋王（东莞）照明科技有限公司 | Key switch life testing device |
| CN203465396U (en) * | 2013-09-10 | 2014-03-05 | 南京芒冠光电科技股份有限公司 | Power-on detection jig of button switch |
| CN206505161U (en) * | 2017-02-17 | 2017-09-19 | 珠海瑞德电子科技有限公司 | A kind of new and effective key-press status detection circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426499A (en) * | 2020-05-11 | 2020-07-17 | 杭州老板电器股份有限公司 | Method and system for detecting operation reliability of variable frequency range hood |
| CN112014086A (en) * | 2020-08-26 | 2020-12-01 | 黄燕飞 | Circuit switch detects with resistant test equipment that clicks |
| CN112014086B (en) * | 2020-08-26 | 2022-04-12 | 深圳市国汇计量质量检测有限公司 | Circuit switch detects with resistant test equipment that clicks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |
|
| RJ01 | Rejection of invention patent application after publication |