CN202794250U - Multifunctional electronic testing pen - Google Patents
Multifunctional electronic testing pen Download PDFInfo
- Publication number
- CN202794250U CN202794250U CN 201220424838 CN201220424838U CN202794250U CN 202794250 U CN202794250 U CN 202794250U CN 201220424838 CN201220424838 CN 201220424838 CN 201220424838 U CN201220424838 U CN 201220424838U CN 202794250 U CN202794250 U CN 202794250U
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- switch
- testing
- resistance
- test pen
- penholder
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Abstract
Provided is a multifunctional electronic testing pen. A testing head is installed at the front end of a pen holder, a testing pen needle is integrated at the front end of the testing head, and a control switch is installed on the lateral wall of pen holder. A testing circuit board, a buzzer and a battery are installed in an inner cavity of the pen holder. A movably matched grounding ring is installed on the lateral wall of the testing head and connected with a grounding clamp through a lead. The control switch comprises a function change-over switch, a resistance switching-in switch, a resistance dial switch and a buzzer switch. The testing head, the function change-over switch, the resistance switching-in switch, the resistance dial switch, the buzzer switch and the buzzer are respectively electrically connected with a testing circuit board. The multifunctional electronic testing pen has the advantages that by means of the grounding ring, the grounding clamp, the buzzer and the control switch, multiple functions of connection and disconnection testing, positive and negative electrode testing, power supply/resistance pen/switch and diode measuring/nixie tube testing can be achieved, the testing pen is wide in application range, meets more requirements of users, improves working efficiency of detection and maintenance and is low in price.
Description
Technical field
The utility model relates to pick-up unit, particularly a kind of multifunction electronic test pen.
Background technology
All need testing tool when numerous electrophiles, student, electrician, maintenance personal are in electro-detection, traditional pick-up unit volume is larger, carries inconvenience, and price is also higher.General test pen then volume little, be easy to carry, but usually function is less, thereby the scope of application is narrower, uses inconveniently, can not satisfy more demands of user so that cause detect and the work efficiency of maintenance not high.Many, the cheap again portable multifunction electronic test pens of design function are generally requirements of numerous users.
The utility model content
The purpose of this utility model is to overcome defects, provides a kind of function many, and the scope of application is wide, can satisfy the more demands of user, improves and detects and the work efficiency of maintenance and cheap multifunction electronic test pen.
For achieving the above object, the utility model multifunction electronic test pen, comprise penholder, described penholder front end is equipped with measuring head, described measuring head front end is provided with the test pen pin that is connected, on the described penholder sidewall gauge tap is installed, described penholder inner chamber is equipped with testing circuit board and battery, the movable ground loop that cooperates is installed on the described measuring head sidewall, described ground loop is connected with ground clamp by wire, described penholder inner chamber also is equipped with hummer, described gauge tap comprises the function change-over switch, resistance access switch, resistance toggle switch and buzzer switch, described measuring head, the function change-over switch, resistance access switch, the resistance toggle switch, buzzer switch links to each other with described testing circuit board electricity respectively with hummer.
The utility model multifunction electronic test pen, wherein said function change-over switch comprise to be surveyed break-make, surveys positive and negative, power supply/resistance pen/switch and each grade of survey diode/charactron.
The utility model multifunction electronic test pen also is equipped with an adjustable resistance on the wherein said penholder sidewall, and described adjustable resistance links to each other with the testing circuit board electricity with described resistance toggle switch respectively.
The utility model multifunction electronic test pen also is equipped with signal lamp on the wherein said penholder sidewall, and described signal lamp links to each other with described testing circuit board electricity.
The utility model multifunction electronic test pen, wherein said penholder also is provided with the extend testing head, described extend testing head comprises an extend testing pin that is connected, a described extend testing needle set has the inner chamber that cooperates with described test pen pin outer wall, described extend testing headgear is contained in described measuring head and test pen pin front end, and a described extend testing pin front end is provided with the test pen hook that is connected.
The utility model multifunction electronic test pen, the external power supply plug that wherein said penholder end is provided with external power supply socket and cooperates with this external power supply socket, described external power supply plug is connected with positive and negative two crocodile clips by another wire, and described external power supply plug also is connected with USB interface.
Advantage and the good effect of the utility model multifunction electronic test pen are: owing to be provided with ground loop, ground clamp, hummer and comprise that function change-over switch, resistance access the gauge tap of switch, resistance toggle switch and buzzer switch, break-make be can realize surveying, positive and negative, power supply/resistance pen/switch and many grades of functions of survey diode/charactron surveyed, this test pen scope of application is wide, satisfy more demands of user, improved detection and the work efficiency of keeping in repair and cheap.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that the purpose of this utility model, feature and advantage are had deep understanding.
Description of drawings
Fig. 1 is the structural representation of the utility model multifunction electronic test pen;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B partial enlarged view of Fig. 1;
Fig. 4 is the structural representation of external power supply plug;
Fig. 5 is the circuit theory diagrams of the utility model multifunction electronic test pen.
Embodiment
The below elaborates to the technical scheme of the utility model multifunction electronic test pen with embodiment.
With reference to Fig. 1, the utility model multifunction electronic test pen is equipped with measuring head 2 at penholder 4 front ends, and measuring head 2 front ends are provided with the test pen pin 1 that is connected.The movable ground loop 6 that cooperates is installed on measuring head 2 sidewalls, and ground loop 6 is connected with ground clamp 3 by wire.Simultaneously, also be provided with extend testing head 21, extend testing head 21 comprises an extend testing pin 22 that is connected, an extend testing pin 22 has the inner chamber that cooperates with test pen pin 1 outer wall, extend testing head 21 is sleeved on measuring head 2 and test pen pin 1 front end, and an extend testing pin 22 front ends are provided with the test pen hook 23 that is connected.
In conjunction with reference to Fig. 2 and Fig. 4, the utility model multifunction electronic test pen, at the external power supply plug 5 that penholder 4 ends are provided with external power supply socket 48 and cooperate with this external power supply socket 48, external power supply plug 5 is connected with positive and negative two crocodile clips 7,8 by another wire.External power supply plug 5 also is connected with USB interface 9.In our life, the power supply of USB interface is a lot.Just can satisfy the demand of the utility model multifunction electronic test pen such as power supplys such as charger for mobile phone, use easily and need not to buy separately.If when using other Power supply, can select crocodile clip 7,8, it is also extremely convenient to use.
The utility model multifunction electronic test pen is equipped with testing circuit board, hummer 46 and battery 47 at penholder 4 inner chambers, and hummer 46 links to each other with the testing circuit board electricity with battery 47.
In conjunction with reference to Fig. 3, the utility model multifunction electronic test pen is equipped with gauge tap at penholder 4 sidewalls, and gauge tap comprises function change-over switch 41, resistance access switch 42, resistance toggle switch 43 and buzzer switch 44.Function change-over switch 41 comprises to be surveyed break-make, surveys positive and negative, power supply/resistance pen/switch and each grade of survey diode/charactron.Adjustable resistance 45 and signal lamp 49 also are installed on penholder 4 sidewalls.Measuring head 2, function change-over switch 41, resistance access switch 42, resistance toggle switch 43, buzzer switch 44 and signal lamp 49 link to each other with the testing circuit board electricity respectively.Adjustable resistance 45 links to each other with the testing circuit board electricity with resistance toggle switch 43 respectively.
The physical circuit of testing circuit board as shown in Figure 5, test circuit is known technology, only does simple introduction here.The signal input also can be from 21 inputs of extend testing head from 1 input of test pen pin, and ground wire is crocodile clip 8, also available ground clamp 3.Functional select switch 41 adopts duplex single Zhi Kaiguan, easily State selective measurements type.Resistance selection is to use resistance toggle switch 43 to add the resistance of different resistances, and the resistance of different resistances also can be in parallel, thereby obtain the resistance of more resistances.Resistance adopts the encapsulation of 0805 or 1206 pasters.In-line power adopts 3V button cell 47.Measure alarm and indication use light emitting diode and hummer 46.External power supply is that power interface 48 turns crocodile clip 7,8.In other embodiment of the utility model multifunction electronic test pen, penholder 4 is inner integrated DC-DC translation circuit to satisfy the requirement of different electrical power voltage, can improve the combination property of test pen greatly.What the DC-DC change point adopted is the adjustable voltage stabilizing chips of LM317 three ends, and the supply voltage of minimum exportable 1.2V-30V, circuital current are 1A.
The following describes the use of the utility model multifunction electronic test pen various functions.
1) functional select switch
Switch is below the time:
(1) quality of survey diode and charactron
Survey light emitting diode, charactron since in the test pen with battery, need not power supply.Select to seal in the resistance of circuit during use, be generally 500 ohm or 1K.
(2) both positive and negative polarity of survey 3V-12V power supply
Survey in the positive and negative because test pen with battery, need not power supply.When nib is just connecing, clip connects when negative, the test pen signal lamp is bright, and hummer rings.Otherwise otherwise both positive and negative polarity.
Switch is in the above the time:
(1) surveys break-make
Survey break-make since in the test pen with battery, need not power supply.When circuit-under-test resistance below 10 ohm the time, hummer rings, signal lamp does not work substantially; When circuit-under-test resistance during at 100 ohm-200K, hummer rings, and signal lamp is bright.When circuit-under-test resistance was very large, hummer did not ring, but signal lamp is bright.
(2) form the adjustable resistance pen with external connection line, take out voltage signal as switch, as supply lines or from circuit
When using external connection line, place the function switch key on power supply/resistance pen/switch shelves, whether select series resistor with resistance access switch, if do not select series resistor, off resistance accesses switch.
When as resistance, notice that institute's bearing power that connects is not too much, because the power limited of test pen internal resistance.During as resistance, resistance access switch connection, if carry out step-less adjustment, get to the rightmost of resistance toggle switch, the scope of adjusting is 0-500K.In test, can open or close hummer.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; relate under the prerequisite of spirit not breaking away from the utility model; various distortion and improvement that the common engineering technical personnel in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (6)
1. multifunction electronic test pen, comprise penholder (4), described penholder (4) front end is equipped with measuring head (2), described measuring head (2) front end is provided with the test pen pin (1) that is connected, on described penholder (4) sidewall gauge tap is installed, described penholder (4) inner chamber is equipped with testing circuit board and battery (47), it is characterized in that: the movable ground loop (6) that cooperates is installed on described measuring head (2) sidewall, described ground loop (6) is connected with ground clamp (3) by wire, described penholder (4) inner chamber also is equipped with hummer (46), described gauge tap comprises function change-over switch (41), resistance access switch (42), resistance toggle switch (43) and buzzer switch (44), described measuring head (2), function change-over switch (41), resistance access switch (42), resistance toggle switch (43), buzzer switch (44) links to each other with described testing circuit board electricity respectively with hummer (46).
2. multifunction electronic test pen according to claim 1 is characterized in that: wherein said function change-over switch (41) comprises to be surveyed break-make, surveys positive and negative, power supply/resistance pen/switch and each grade of survey diode/charactron.
3. multifunction electronic test pen according to claim 1 and 2, it is characterized in that: on wherein said penholder (4) sidewall adjustable resistance (45) is installed also, described adjustable resistance (45) links to each other with the testing circuit board electricity with described resistance toggle switch (43) respectively.
4. multifunction electronic test pen according to claim 3 is characterized in that: on wherein said penholder (4) sidewall signal lamp (49) is installed also, described signal lamp (49) links to each other with described testing circuit board electricity.
5. multifunction electronic test pen according to claim 4, it is characterized in that: wherein said penholder (4) also is provided with extend testing head (21), described extend testing head (21) comprises an extend testing pin (22) that is connected, a described extend testing pin (22) has the inner chamber that cooperates with described test pen pin (1) outer wall, described extend testing head (21) is sleeved on described measuring head (2) and test pen pin (1) front end, and a described extend testing pin (22) front end is provided with the test pen hook (23) that is connected.
6. multifunction electronic test pen according to claim 5, it is characterized in that: the external power supply plug (5) that wherein said penholder (4) end is provided with external power supply socket (48) and cooperates with this external power supply socket (48), described external power supply plug (5) is connected with positive and negative two crocodile clips (7,8) by another wire, and described external power supply plug (5) also is connected with USB interface (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424838 CN202794250U (en) | 2012-08-24 | 2012-08-24 | Multifunctional electronic testing pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424838 CN202794250U (en) | 2012-08-24 | 2012-08-24 | Multifunctional electronic testing pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794250U true CN202794250U (en) | 2013-03-13 |
Family
ID=47821492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424838 Expired - Fee Related CN202794250U (en) | 2012-08-24 | 2012-08-24 | Multifunctional electronic testing pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356853A (en) * | 2017-06-26 | 2017-11-17 | 上海华岭集成电路技术股份有限公司 | Change the method for probe card probe impedance value |
-
2012
- 2012-08-24 CN CN 201220424838 patent/CN202794250U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356853A (en) * | 2017-06-26 | 2017-11-17 | 上海华岭集成电路技术股份有限公司 | Change the method for probe card probe impedance value |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130824 |