CN203465333U - Practical-type digital multimeter - Google Patents
Practical-type digital multimeter Download PDFInfo
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- CN203465333U CN203465333U CN201320511115.8U CN201320511115U CN203465333U CN 203465333 U CN203465333 U CN 203465333U CN 201320511115 U CN201320511115 U CN 201320511115U CN 203465333 U CN203465333 U CN 203465333U
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- multimeter
- circuit board
- practical
- table body
- battery
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Abstract
The utility model discloses a practical-type digital multimeter. By using the multimeter of the utility model, a technical problem that there is no illuminating apparatus and a voltage of a test circuit is instable so that measurement data is not accurate or the multimeter can not work in a current multimeter is solved. The multimeter of the utility model comprises a meter body. The multimeter is characterized in that the meter body is provided with a display, a measuring range switch, a current interface, a measurement input terminal and the illuminating apparatus; a main circuit board, a lithium battery and a charging and discharging circuit board are installed in the meter body; the current interface and the battery are electrically connected with the charging and discharging circuit board; the display, the measuring range switch and the measurement input terminal are electrically connected with the main circuit board; the battery provides power for the main circuit board and the illuminating apparatus. The multimeter of the utility model has an illumination function so that the multimeter can conveniently work at a place with poor light. The structure is reasonable and the test circuit is stable. The multimeter is safe and reliable. Operation is convenient.
Description
Technical field
The utility model relates to multimeter technical field, especially a kind of practical digimer.
Background technology
It is many that multimeter has purposes, range is wide, the advantage such as easy to use, it can measure DC current, DC voltage, alternating voltage, resistance etc., some multimeter can also be measured electric capacity, inductance, power, transistor common emitter DC amplification factor HFE etc., so multimeter is to be a kind of requisite instrument for our power industry.Along with the technical requirement that electric substation is installed, debugs, keeped in repair improves constantly, the instrument of employing is also corresponding safer, firm, reliable, handled easily and maintenance.
At present, multimeter can be divided into pointer multimeter and digimer on the market, wherein take digimer as main, but still there are some problems in these multimeters in real work, when operating maintenance personnel in electric substation's overhaul, transform or face while repairing work, when the operation of interior of equipment cabinet depths, often there is the poor problem of light condition in staff, is unfavorable for trouble free service; Multimeter test circuit spread of voltage causes that measurement data is inaccurate maybe cannot work.
Utility model content
The purpose of this utility model is to provide a kind of practical digimer in order to solve above-mentioned the deficiencies in the prior art, safe and reliable, easy to operate, and illumination is provided, and conveniently at light, compared with dark place, works.
In order to achieve the above object, the practical digimer that the utility model is designed, comprise table body, it is characterized in that, on described table body, display, range switch, current interface, measurement input end and lighting device are housed, main circuit board, lithium battery and charge-discharge circuit plate are housed in described table body, described current interface and battery are all electrically connected to described charge-discharge circuit plate, described display, range switch and measurement input end are electrically connected to described main circuit board, and described battery is described main circuit board and lighting device power supply.The technical program is for not enough at lighting condition, and for example the situation during operation of electric substation's interior of equipment cabinet depths, is provided with lighting device, convenient working; Rational in infrastructure, test circuit is stable, security of operation, reliable, easy to operate.
As the further of said structure, improve and supplement, the utility model also comprises the combination in any of following additional technical feature or these features:
Described battery, main circuit board and lighting device are all arranged on circuit separately, and described battery circuit is in parallel with described main circuit board circuit and lighting circuit, convenient control separately.
Described table body is provided with the switch of independent control lighting device, easy to operate.
Described lighting device is detachably connected on table body, as add-on device, detachable at any time, weight reduction.
The external sheath that is provided with carry magnet of described table, when the connection terminal distance from measuring is larger, can be fixed on multimeter on the rack of metal by magnet, solve because of the excessive and singlehanded problem that cannot carry out work of distance.
Described current interface is USB interface, and common interfaces discharges and recharges conveniently.
A kind of practical digimer that the utility model obtains, band illumination functions, the convenient operation at the poor place of light; There is magnet adsorption function, conveniently when operation, table body is fixed on metalwork, solve because of the excessive and singlehanded problem that cannot carry out work of distance; Adopt USB interface, solve in the course of work because battery working time is long without electric phenomenon; Rational in infrastructure, test circuit is stable, safe and reliable, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model table body inside;
Fig. 3 is the structural representation of the utility model sheath.
In figure: 1-table body, 2-display, 3-range switch, 4-current interface, 5-lighting device, 6-main circuit board, 7-lithium battery, 8-charge-discharge circuit plate, 9-switch, 10-sheath, 11-magnet.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1
As Figure 1-3, a kind of practical digimer that the present embodiment is described, comprise table body 1, display 2, range switch 3, current interface 4 are housed on described table body 1, measure input end and lighting device 5, main circuit board 6, lithium battery 7 and charge-discharge circuit plate 8 are housed in described table body 1, described current interface 4 and battery 7 are all electrically connected to described charge-discharge circuit plate 8, described display 2, range switch 3 and measurement input end are electrically connected to described main circuit board 6, and described battery 7 is described main circuit board 6 and lighting device 5 power supplies.Described current interface 4 is USB interface.
Described battery 7, main circuit board 6 and lighting device 5 are all arranged on circuit separately, and described battery circuit is in parallel with described main circuit board circuit and lighting circuit.Described table body 1 is provided with the switch 9 of independent control lighting device 5, when current interface 4 access power supply, and when switch 9 is closed, lighting device 5 work; When switch disconnects, be battery 7 chargings.Described lighting device 5 is detachably connected on table body 1.The described outer sheath 10 that is provided with carry magnet 11 of table body 1, sheath 10 can be set in outside table body 1, and magnet 11 faces of sheath are arranged on that face that table body 1 does not arrange components and parts, avoid mutual interference.
Claims (6)
1. a practical digimer, comprise table body (1), it is characterized in that, on described table body (1), display (2) is housed, range switch (3), current interface (4), measure input end and lighting device (5), in described table body (1), main circuit board (6) is housed, lithium battery (7) and charge-discharge circuit plate (8), described current interface (4) and battery (7) are all electrically connected to described charge-discharge circuit plate (8), described display (2), range switch (3) and measurement input end are electrically connected to described main circuit board (6), described battery (7) is described main circuit board (6) and lighting device (5) power supply.
2. a kind of practical digimer according to claim 1, it is characterized in that described battery (7), main circuit board (6) and lighting device (5) are all arranged on circuit separately, described battery circuit is in parallel with described main circuit board circuit and lighting circuit.
3. a kind of practical digimer according to claim 2, is characterized in that described table body (1) is provided with the switch (9) of independent control lighting device (5).
4. according to a kind of practical digimer described in claim 1 or 2 or 3, it is characterized in that described lighting device (5) is detachably connected on table body (1).
5. a kind of practical digimer according to claim 1, is characterized in that the outer sheath (10) that is provided with carry magnet (11) of described table body (1).
6. a kind of practical digimer according to claim 1, is characterized in that described current interface (4) is for USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511115.8U CN203465333U (en) | 2013-08-21 | 2013-08-21 | Practical-type digital multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511115.8U CN203465333U (en) | 2013-08-21 | 2013-08-21 | Practical-type digital multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465333U true CN203465333U (en) | 2014-03-05 |
Family
ID=50177686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511115.8U Expired - Lifetime CN203465333U (en) | 2013-08-21 | 2013-08-21 | Practical-type digital multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490601A (en) * | 2018-12-27 | 2019-03-19 | 广东工程职业技术学院 | A kind of Multifunctional digital universal meter |
-
2013
- 2013-08-21 CN CN201320511115.8U patent/CN203465333U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490601A (en) * | 2018-12-27 | 2019-03-19 | 广东工程职业技术学院 | A kind of Multifunctional digital universal meter |
| CN109490601B (en) * | 2018-12-27 | 2023-11-24 | 广东工程职业技术学院 | Multifunctional digital multimeter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |