CN204495891U - A kind of multimeter - Google Patents
A kind of multimeter Download PDFInfo
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- CN204495891U CN204495891U CN201520211509.0U CN201520211509U CN204495891U CN 204495891 U CN204495891 U CN 204495891U CN 201520211509 U CN201520211509 U CN 201520211509U CN 204495891 U CN204495891 U CN 204495891U
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Abstract
The utility model provides a kind of multimeter, comprise a multimeter body, two root table pens, two electrodes and two sockets, described test pencil is respectively a red test pencil and a black meter pen, described electrode is respectively a red test pencil electrode and a black meter pen electrode, described socket is a red test pencil socket and a COM socket, described red test pencil and described black meter pen match respectively at described red test pencil socket and described COM socket, described multimeter inside comprises V Ω electrode, mA electrode, 20A electrode and COM electrode, described V Ω electrode, mA electrode and 20A electrode access pushbutton switch respectively and with described red test pencil Electrode connection.The utility model by arranging pushbutton switch between each electrode and red test pencil electrode, thus without the need to plugging test pencil to select control survey small area analysis, big current and other electricity, brings great convenience to measurement.
Description
Technical field
The utility model relates to a kind of multimeter, particularly one can exempt from plug-in multimeter.
Background technology
At present, the externally measured structure of existing multimeter is by red test pencil, black meter pen, V Ω socket, and COM socket, mA socket, 20A socket and measurement range selection knob form.During measurement, black meter pen is inserted COM socket, according to the difference of measuring electric quantity red test pencil inserted in other three sockets and measure, so measure small area analysis, big current and and other electricity time need red test pencil to plug back and forth between V Ω socket, mA socket and 20A socket, great inconvenience is brought to measurement, simultaneously long-term plug test pencil, easily causes the mechanical injuries of test pencil and socket.In order to solve the plug problem of existing multimeter test pencil when measuring small area analysis, big current and other electricity, the utility model provides one and exempts from plug-in multimeter, this multimeter can not only measure each charge value, and solves the plug problem of test pencil when measuring each electricity.
Summary of the invention
In order to solve the plug problem of existing multimeter test pencil when measuring small area analysis, big current and other electricity, the utility model provides one and exempts from plug-in multimeter, this multimeter can not only measure each charge value, and solves the plug problem of test pencil when measuring each electricity.
The utility model solves the technical scheme that its technical matters adopts:
A kind of multimeter, described multimeter comprises: a multimeter body, two root table pens, two electrodes and two sockets, described test pencil is respectively a red test pencil and a black meter pen, described electrode is respectively a red test pencil electrode and a black meter pen electrode, described socket is a red test pencil socket and a COM socket, described red test pencil and described black meter pen match respectively at described red test pencil socket and described COM socket, it is characterized in that, described multimeter inside comprises V Ω electrode, mA electrode, 20A electrode and COM electrode, described V Ω electrode, mA electrode and 20A electrode access pushbutton switch respectively and with described red test pencil Electrode connection, described COM electrode and described black meter pen Electrode connection,
Further, described mA electrode is connected with one end of described pushbutton switch, and the other end of described pushbutton switch is connected with red test pencil electrode;
Further, described V Ω electrode is connected with one end of described pushbutton switch, and the other end of described pushbutton switch is connected with red test pencil electrode;
Further, pushbutton switch one end of described 20A electrode access is connected with relay input end, and the other end is connected with anode.
Further, when described pushbutton switch closes, relay normally open end closes, and 20A electrode and red test pencil electrode are connected.
Further, the input end two ends of a described relay diode in parallel;
Further, described diode model is 1N4007;
Further, the coil voltage 9V of described relay, model is LKS1AF-9V.
The beneficial effects of the utility model are, can selecting to control by switch without the need to plugging test pencil when measuring small area analysis, big current and other electricity, bringing great convenience, adopt switch to connect between electrode to measurement, structure is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram before multimeter transformation.
Fig. 2 is the external structure schematic diagram of a kind of multimeter described in the utility model.
Fig. 3 is the schematic diagram of a kind of multimeter described in the utility model.
Fig. 4 is the Control schematic diagram of a kind of multimeter described in the utility model.
In figure, Reference numeral is expressed as: 1-V Ω socket; 2-COM socket; 3-mA socket; 4-20A socket; 5-V Ω electrode; 6-COM electrode; 7-mA electrode; 8-20A electrode; 9-black meter pen; The red test pencil of 10-; The red test pencil socket of 11-; The red test pencil electrode of 12-; 13-V Ω pushbutton switch; 14-mA pushbutton switch; 15-9V relay normally open end; 16-9V anode; 17-20A pushbutton switch; 18-9V battery cathode; 19-9V relay input end.
Embodiment
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the externally measured structural map of multimeter before transformation, is made up of V Ω socket 1, COM socket 2, mA socket 3,20A socket 4, V Ω electrode 5, COM electrode 6, mA electrode 7,20A electrode 8, black meter pen 9 and red test pencil 10.Only black meter pen need be inserted COM socket 2 during measurement, red test pencil be inserted respectively the measurement just can carrying out different electricity in other three sockets.
Fig. 2 is the externally measured structural map of the utility model, is made up of COM socket 2, COM electrode 6, red test pencil socket 11, red test pencil electrode 12, V Ω pushbutton switch 13, mA pushbutton switch 14,20A pushbutton switch 17, black meter pen 9 and red test pencil 10.Only black meter pen 9 need be inserted COM socket 2 during measurement, red test pencil is inserted red test pencil socket 11, then press V Ω pushbutton switch 13 and represent the measurement carrying out V Ω electricity, press mA pushbutton switch 14 and represent the measurement carrying out mA electric current, press 20A pushbutton switch 17 and represent the measurement carrying out 20A electric current, at every turn only by next pushbutton switch during use.
Fig. 3 is the utility model embodiment transformation schematic diagram, is made up of COM socket 2, COM electrode 6, red test pencil socket 11, red test pencil electrode 12, V Ω electrode 5, mA electrode 7,20A electrode 8, V Ω pushbutton switch 13, mA pushbutton switch 14,9V relay normally open end 15, black meter pen 9 and red test pencil 10.One end of V Ω pushbutton switch 13 is connected with V Ω electrode 5, and the other end is connected with red test pencil electrode 12; MA pushbutton switch 14 one end is connected with mA electrode 7, and the other end is connected with red test pencil electrode 12; 9V relay normally open end 15 one end is connected with 20A electrode 8, and the other end is connected with red test pencil electrode 12.Only black meter pen 9 need be inserted COM socket 2 during measurement, red test pencil 10 is inserted red test pencil socket 11, the measurement carrying out V Ω electricity is represented when V Ω pushbutton switch 13 is pressed, represent the measurement carrying out mA electric current when mA pushbutton switch 14 is pressed, represent the measurement carrying out 20A electric current when relay normally open end 15 closes.
Fig. 4 is the utility model embodiment Control schematic diagram, is made up of 9V battery, 20A pushbutton switch 17,9V relay input end 19,9V relay normally open end 15,20A electrode 8, red test pencil electrode 12.20A pushbutton switch 17 one end is connected with 9V relay input end 19, and the other end is connected with 9V anode 16; 9V battery cathode 18 is connected with 9V relay input end 19, and the model of 9V relay is LKS1AF-9V; A diode in parallel at 9V relay input end 19 two ends, diode model is 1N4007; When 20A pushbutton switch 17 is pressed, relay normally open end 15 closes, and 20A electrode 8 and red test pencil electrode 12 are connected, and just can carry out the measurement of 20A electric current.
The foregoing is only and embodiment of the present utility model is described; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a multimeter, described multimeter comprises: a multimeter body, two root table pens, two electrodes and two sockets, described test pencil is respectively a red test pencil and a black meter pen, described electrode is respectively a red test pencil electrode and a black meter pen electrode, described socket is a red test pencil socket and a COM socket, described red test pencil and described black meter pen match respectively at described red test pencil socket and described COM socket, it is characterized in that, described multimeter inside comprises V Ω electrode, mA electrode, 20A electrode and COM electrode, described V Ω electrode, mA electrode and 20A electrode access pushbutton switch respectively and with described red test pencil Electrode connection, described COM electrode and described black meter pen Electrode connection.
2. multimeter according to claim 1, is characterized in that, described mA electrode is connected with one end of described pushbutton switch, and the other end of described pushbutton switch is connected with red test pencil electrode.
3. multimeter according to claim 1, is characterized in that, described V Ω electrode is connected with one end of described pushbutton switch, and the other end of described pushbutton switch is connected with red test pencil electrode.
4. multimeter according to claim 1, is characterized in that, pushbutton switch one end of described 20A electrode access is connected with relay input end, and the other end is connected with anode.
5. multimeter according to claim 4, is characterized in that, when described pushbutton switch closes, relay normally open end closes, and 20A electrode and red test pencil electrode are connected.
6. multimeter according to claim 5, is characterized in that, an input end two ends diode in parallel of described relay.
7. multimeter according to claim 6, is characterized in that, described diode model is 1N4007.
8. the multimeter according to claim 4 or 5, is characterized in that, the coil voltage 9V of described relay, and model is LKS1AF-9V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211509.0U CN204495891U (en) | 2015-04-08 | 2015-04-08 | A kind of multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211509.0U CN204495891U (en) | 2015-04-08 | 2015-04-08 | A kind of multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495891U true CN204495891U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211509.0U Active CN204495891U (en) | 2015-04-08 | 2015-04-08 | A kind of multimeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959813A (en) * | 2019-04-28 | 2019-07-02 | 深圳市兴威帆电子技术有限公司 | The multimeter and its host and control method of changeable test pencil |
-
2015
- 2015-04-08 CN CN201520211509.0U patent/CN204495891U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959813A (en) * | 2019-04-28 | 2019-07-02 | 深圳市兴威帆电子技术有限公司 | The multimeter and its host and control method of changeable test pencil |
| CN109959813B (en) * | 2019-04-28 | 2022-03-29 | 深圳市兴威帆电子技术有限公司 | Multimeter capable of switching meter pens, host and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180206 Address after: 214000 building 11 building, No. 999, Gao Lang Dong Road, Wuxi, Jiangsu Patentee after: Jiangsu Fu Hui Mdt InfoTech Ltd. Address before: 214000, high wave East Road, Binhu District, Jiangsu, Wuxi, China, A2 Patentee before: WUXI INSTITUTE OF FUDAN University |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 201, Building 111, No. 191 Neijiang Road, Yangpu District, Shanghai, 200090 Patentee after: Shanghai Fuhui Information Technology Co.,Ltd. Address before: 11th Floor, Qihang Building, No. 999 Gaolang East Road, Wuxi City, Jiangsu Province, 214000 Patentee before: Jiangsu Fu Hui Mdt InfoTech Ltd. |
|
| CP03 | Change of name, title or address |