CN204116422U - A kind of multi-function multimeter - Google Patents
A kind of multi-function multimeter Download PDFInfo
- Publication number
- CN204116422U CN204116422U CN201420485137.6U CN201420485137U CN204116422U CN 204116422 U CN204116422 U CN 204116422U CN 201420485137 U CN201420485137 U CN 201420485137U CN 204116422 U CN204116422 U CN 204116422U
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- China
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- multimeter
- key control
- button
- circuit board
- control device
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Abstract
The utility model discloses a kind of multi-function multimeter, relate to field of power electronics, comprise multimeter body, circuit board, display screen, described display screen is arranged on multimeter body, and be connected with circuit board, circuit board is fixed on the inside of multimeter body, it is characterized in that: also comprise a key control device, a described key control device comprises resistance button, capacitive buttons, inductance button, knob, electric current button, diode both positive and negative polarity button, a described key control device is connected with circuit board, described multimeter bodies top is also provided with clamp device, described clamp device comprises chuck and pinch, described chuck is fixed on multimeter bodies top by round bearing, pinch connects round bearing and is embedded on multimeter body, multimeter body is exposed in hand-type grip part simultaneously on pinch, also spring is provided with between two pinches.One key control device of this kind of multi-function multimeter, namely each function all independently presses key control by one, while display interface changes, reduces many unnecessary interferences, makes reading become simple and clear.
Description
Technical field
The utility model relates to field of power electronics, particularly a kind of multi-function multimeter.
Background technology
Multimeter is the indispensable measurement instrument of the departments such as power electronics, generally with measuring voltage, electric current and resistance for fundamental purpose.A kind of multi-functional, multiple range measurement instrument, can measure DC current, DC voltage, alternating current, alternating voltage, resistance and audio-frequency electric equality, some parameters etc. can also surveying alternating current, electric capacity, inductance value and semiconductor had.But, easily disturb under the situation that various measured value switches.
Utility model content
The purpose of this utility model is to provide a kind of multi-function multimeter, to make existing technical scheme more perfect.
A kind of multi-function multimeter, comprise multimeter body, circuit board, display screen, described display screen is arranged on multimeter body, and be connected with circuit board, circuit board is fixed on the inside of multimeter body, it is characterized in that: also comprise a key control device, a described key control device comprises resistance button, capacitive buttons, inductance button, knob, electric current button, diode both positive and negative polarity button, a described key control device is connected with circuit board, described multimeter bodies top is also provided with clamp device, described clamp device comprises chuck and pinch, described chuck is fixed on multimeter bodies top by round bearing, pinch connects round bearing and is embedded on multimeter body, multimeter body is exposed in hand-type grip part simultaneously on pinch, also spring is provided with between two pinches.
Preferably, the described multimeter body left and right sides is provided with test pencil groove, and the notch of test pencil groove is provided with projection.
Preferably, each button of a described key control device is provided with the pattern of corresponding measuring element.
Preferably, the pattern of described measuring element is recess patterns.
Preferably, rubber protecting jacket is provided with outside described multimeter body.
The utility model has the advantage of: this kind of multi-function multimeter, the described multimeter body left and right sides is provided with test pencil groove, facilitate the storage of test pencil, the notch of test pencil groove is provided with projection, test pencil can be blocked, test pencil is made to be not easy to drop out from test pencil groove, each button of a described key control device is provided with the pattern of corresponding measuring element, and be recess patterns, more intuitively measure required components and parts, recess patterns has certain help to the staff that eyesight is not so good simultaneously, rubber protecting jacket is provided with outside described multimeter body, fuselage can be protected, improve people by the comfort level of holding multimeter simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of multi-function multimeter described in the utility model.
Wherein: 1-multimeter body, 2-mono-key control device, 3-display screen, 4-protective sleeve, 5-test pencil groove, 7-round bearing, 8-pinch, 9-chuck, 10-is protruding.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
As shown in Figure 1, a kind of multi-function multimeter, comprise multimeter body 1, circuit board, display screen 3, described display screen 3 is arranged on multimeter body 1, and be connected with circuit board, circuit board is fixed on the inside of multimeter body 1, it is characterized in that: also comprise a key control device 2, a described key control device 2 comprises resistance button, capacitive buttons, inductance button, knob, electric current button, diode both positive and negative polarity button, each function all independently presses key control by one, while display interface changes, reduce many unnecessary interferences, reading is made to become simple and clear, a described key control device 2 is connected with circuit board, circuit board is for platform with microcomputer development plate, the measurement of inductance: with CD4069 and resistance capacitance forming circuit, when connecting tested inductance, whole circuit will form oscillation circuit, export the sine wave of certain frequency, by the external counter of this signal input development board, draw its oscillation frequency, the inductance value of inductance will be drawn by the calculating of software, resistance, the measurement of electric capacity: with timer and resistance capacitance forming circuit, when connecting measured resistance or electric capacity, whole circuit will form oscillation circuit, export the sine wave of certain frequency, monostable is formed according to timer, produce pulse waveform, read low and high level by single-chip microcomputer and draw frequency, by the external counter of this signal input development board, draw its oscillation frequency, the value of resistance capacitance will be drawn by the calculating of software, the measurement of diode: diode forward place in circuit conducting, now hummer sounding, pilot lamp is bright, the measurement of DC voltage: two resistance connecting certain value between two test pencils, the voltage between two resistance is gathered with single-chip microcomputer, namely the voltage of measured point is drawn through the process of software, the measurement of DC current: similar with voltage measurement, described multimeter body 1 top is also provided with clamp device, described clamp device comprises chuck 9 and pinch 8, when multimeter is in work high above the ground, multimeter can be hung on pole and use, described chuck 9 is fixed on multimeter body 1 top by round bearing 7, pinch 8 connects round bearing 7 and is embedded on multimeter body 1, multimeter body 1 is exposed in hand-type grip part simultaneously on pinch 8, also spring is provided with between two pinches 8, described multimeter body 1 left and right sides is provided with test pencil groove 5, facilitate the storage of test pencil, the notch of test pencil groove 5 is provided with protruding 10, test pencil can be blocked, test pencil is made to be not easy to drop out from test pencil groove 5, each button of a described key control device 2 is provided with the pattern of corresponding measuring element, and be recess patterns, more intuitively measure required components and parts, recess patterns has certain help to the staff that eyesight is not so good simultaneously, rubber protecting jacket is provided with outside described multimeter body 1, fuselage can be protected, improve people by the comfort level of holding multimeter simultaneously.
The utility model has the advantage of: this kind of multi-function multimeter, described multimeter body 1 left and right sides is provided with test pencil groove 5, facilitate the storage of test pencil, the notch of test pencil groove 5 is provided with protruding 10, test pencil can be blocked, test pencil is made to be not easy to drop out from test pencil groove 5, each button of a described key control device 2 is provided with the pattern of corresponding measuring element, and be recess patterns, more intuitively measure required components and parts, recess patterns has certain help to the staff that eyesight is not so good simultaneously, rubber protecting jacket is provided with outside described multimeter body 1, fuselage can be protected, improve people by the comfort level of holding multimeter simultaneously.The display of this multi-function multimeter is clear, is easy to carry, uses also simply more convenient.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (5)
1. a multi-function multimeter, comprise multimeter body, circuit board, display screen, described display screen is arranged on multimeter body, and be connected with circuit board, circuit board is fixed on the inside of multimeter body, it is characterized in that: also comprise a key control device, a described key control device comprises resistance button, capacitive buttons, inductance button, knob, electric current button, diode both positive and negative polarity button, a described key control device is connected with circuit board, described multimeter bodies top is also provided with clamp device, described clamp device comprises chuck and pinch, described chuck is fixed on multimeter bodies top by round bearing, pinch connects round bearing and is embedded on multimeter body, multimeter body is exposed in hand-type grip part simultaneously on pinch, also spring is provided with between two pinches.
2. a kind of multi-function multimeter according to claim 1, is characterized in that: the described multimeter body left and right sides is provided with test pencil groove, and the notch of test pencil groove is provided with projection.
3. a kind of multi-function multimeter according to claim 1, is characterized in that: each button of a described key control device is provided with the pattern of corresponding measuring element.
4. a kind of multi-function multimeter according to claim 3, is characterized in that: the pattern of described measuring element is recess patterns.
5. a kind of multi-function multimeter according to claim 1, is characterized in that: be provided with rubber protecting jacket outside described multimeter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485137.6U CN204116422U (en) | 2014-08-27 | 2014-08-27 | A kind of multi-function multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485137.6U CN204116422U (en) | 2014-08-27 | 2014-08-27 | A kind of multi-function multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116422U true CN204116422U (en) | 2015-01-21 |
Family
ID=52333719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420485137.6U Expired - Fee Related CN204116422U (en) | 2014-08-27 | 2014-08-27 | A kind of multi-function multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204116422U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764917A (en) * | 2015-04-29 | 2015-07-08 | 苏州泰欧阔仪器科技有限公司 | Universal meter convenient to use |
| CN108828271A (en) * | 2018-07-02 | 2018-11-16 | 铜陵百锐设备配件有限公司 | A kind of dual-purpose electric measuring instrument device of electromechanical equipment |
| CN109946496A (en) * | 2019-02-20 | 2019-06-28 | 四川健坤科技有限公司 | A kind of telecommunications monitoring device |
-
2014
- 2014-08-27 CN CN201420485137.6U patent/CN204116422U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764917A (en) * | 2015-04-29 | 2015-07-08 | 苏州泰欧阔仪器科技有限公司 | Universal meter convenient to use |
| CN108828271A (en) * | 2018-07-02 | 2018-11-16 | 铜陵百锐设备配件有限公司 | A kind of dual-purpose electric measuring instrument device of electromechanical equipment |
| CN109946496A (en) * | 2019-02-20 | 2019-06-28 | 四川健坤科技有限公司 | A kind of telecommunications monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |