CN204422622U - Exempt from plug-in multimeter - Google Patents
Exempt from plug-in multimeter Download PDFInfo
- Publication number
- CN204422622U CN204422622U CN201420776185.0U CN201420776185U CN204422622U CN 204422622 U CN204422622 U CN 204422622U CN 201420776185 U CN201420776185 U CN 201420776185U CN 204422622 U CN204422622 U CN 204422622U
- Authority
- CN
- China
- Prior art keywords
- electrode
- test pencil
- pushbutton switch
- red test
- multimeter
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses one and exempt from plug-in multimeter.This multimeter is selected to control by switch without the need to plugging test pencil when measuring electric current and other electricity.It accesses pushbutton switch between red test pencil electrode and V Ω electrode, pushbutton switch is accessed between red test pencil electrode and mA electrode, 9V relay normally open end is accessed, by 9V battery by pushbutton switch access 9V relay input end between red test pencil electrode and 20A electrode.Press the measurement that different shift knobs just can carry out different electricity like this, thus solve the plug problem of test pencil.
Description
Technical field
The utility model relates to a kind of new-type multimeter, specifically a kind of multimeter controlled by the selection of switch without the need to plugging test pencil when measuring electric current and other electricity.
Background technology
At present, the externally measured structure of existing multimeter is made up of red test pencil, black meter pen, V Ω socket, mA socket, 20A socket and measurement range selection knob.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.
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 a kind of insertion free formula 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: this multimeter is made up of COM socket, red test pencil socket, V Ω pushbutton switch, mA pushbutton switch, 20A pushbutton switch, range selection button, black meter pen and red test pencil.COM electrode and COM socket are not changed, a red test pencil electrode and red test pencil socket are set, at multimeter inner V Ω electrode, MA electrode, between 20A electrode and red test pencil electrode, access pushbutton switch respectively, for MA electrode, one end of pushbutton switch is connected with MA electrode, and the other end of pushbutton switch is connected with red test pencil electrode; For V Ω electrode, pushbutton switch one end is connected with V Ω electrode, and the pushbutton switch other end is connected with red test pencil electrode; For 20A electrode, be connected Chang Kaiduan one end of 9V relay with 20A electrode, the other end is connected with red test pencil electrode, and the coil voltage of relay is then provided by the 9V battery in multimeter.The measurement carrying out V Ω electricity is represented when pressing the pushbutton switch between V Ω electrode and red test pencil electrode like this, the measurement carrying out mA electric current is represented when pressing the pushbutton switch between mA electrode and red test pencil electrode, represent the measurement carrying out 20A electric current when pressing the pushbutton switch between 9V battery and relay, thus solve the plug problem of test pencil.
The beneficial effects of the utility model are, can select to control by switch without the need to plug test pencil when measuring small area analysis, big current and other electricity, bring great convenience to measurement, adopt switch to connect between electrode, structure is simple, and cost is low.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is the externally measured structural drawing of common multimeter;
Fig. 2 is externally measured structural drawing after the utility model transformation;
Fig. 3 is the utility model embodiment transformation schematic diagram;
Fig. 4 is the utility model embodiment Control schematic diagram;
In Fig. 1-Fig. 4,1 is V Ω socket, and 2 is COM socket, and 3 is mA socket, and 4 is 20A socket, 5 is V Ω electrode, and 6 is COM electrode, and 7 is mA electrode, 8 is 20A electrode, and 9 is black meter pen, and 10 is red test pencil, 11 is red test pencil socket, and 12 is red test pencil electrode, and 13 is V Ω pushbutton switch, 14 is mA pushbutton switch, and 15 is 9V relay normally open end, and 16 is 9V anode, 17 is 20A pushbutton switch, and 18 is 9V battery cathode, and 19 is 9V relay input end.
Embodiment
During measurement, black meter pen is inserted COM socket, red test pencil is inserted red test pencil socket, then press V Ω pushbutton switch and represent the measurement carrying out V Ω electricity, press mA pushbutton switch and represent the measurement carrying out mA electric current, press 20A pushbutton switch and represent the measurement carrying out 20A electric current, at every turn only by next pushbutton switch during use.
20A pushbutton switch one end is connected with 9V relay input end, the other end is connected with 9V anode, and 9V battery cathode is connected with 9V relay input end, and 9V relay is the LKS1AF-9V that can bear 20A electric current, a diode in parallel at 9V relay input end two ends, diode is 1N4007.When 20A pushbutton switch is pressed, relay normally open end closes, and 20A electrode and red test pencil electrode are connected, and just can carry out the measurement of 20A electric current.
Claims (1)
1. exempt from plug-in multimeter for one kind, be made up of COM socket, red test pencil socket, V Ω pushbutton switch, MA pushbutton switch, 20A pushbutton switch, range selection button, black meter pen and red test pencil, it is characterized in that: COM electrode and COM socket are not changed, a red test pencil electrode and red test pencil socket are set, at multimeter inner V Ω electrode, MA electrode, between 20A electrode and red test pencil electrode, access pushbutton switch respectively, for MA electrode, one end of pushbutton switch is connected with MA electrode, and the other end of pushbutton switch is connected with red test pencil electrode; For V Ω electrode, pushbutton switch one end is connected with V Ω electrode, and the pushbutton switch other end is connected with red test pencil electrode; For 20A electrode, be connected Chang Kaiduan one end of 9V relay with 20A electrode, the other end is connected with red test pencil electrode, and the coil voltage of relay is then provided by the 9V battery in multimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776185.0U CN204422622U (en) | 2014-12-11 | 2014-12-11 | Exempt from plug-in multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776185.0U CN204422622U (en) | 2014-12-11 | 2014-12-11 | Exempt from plug-in multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204422622U true CN204422622U (en) | 2015-06-24 |
Family
ID=53472978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776185.0U Expired - Fee Related CN204422622U (en) | 2014-12-11 | 2014-12-11 | Exempt from plug-in multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204422622U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405432A (en) * | 2016-11-04 | 2017-02-15 | 优利德科技(中国)有限公司 | Multi-state battery power monitoring method and monitoring instrument |
| 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 |
| CN110736885A (en) * | 2019-10-22 | 2020-01-31 | 江苏电卫士电力服务有限公司 | kinds of power equipment detection device |
-
2014
- 2014-12-11 CN CN201420776185.0U patent/CN204422622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405432A (en) * | 2016-11-04 | 2017-02-15 | 优利德科技(中国)有限公司 | Multi-state battery power monitoring method and monitoring instrument |
| 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 |
| CN110736885A (en) * | 2019-10-22 | 2020-01-31 | 江苏电卫士电力服务有限公司 | kinds of power equipment detection 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: 20150624 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |