CN201466988U - External power adapter for digital multimeter - Google Patents
External power adapter for digital multimeter Download PDFInfo
- Publication number
- CN201466988U CN201466988U CN200920122872XU CN200920122872U CN201466988U CN 201466988 U CN201466988 U CN 201466988U CN 200920122872X U CN200920122872X U CN 200920122872XU CN 200920122872 U CN200920122872 U CN 200920122872U CN 201466988 U CN201466988 U CN 201466988U
- Authority
- CN
- China
- Prior art keywords
- digital multimeter
- battery
- plug body
- external power
- power adapter
- 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
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a digital multimeter, in particular to an external power adapter for a digital multimeter; the digital multimeter is composed of a plug body (23) and a power line (22), the plug body (23) is provided with a plug (21), and a direct-current stabilization circuit is arranged in the plug body (23); the external power adapter for the digital multimeter is characterized in that: the other end of the power line (22) is welded with a hasp (24) which is connected with the anode and the cathode of a special battery of the digital multimeter. In the utility model, the external power adapter is used in a testing assembly line, the plug of the plug body is connected with the socket of the alternating current power supply, the wasted energy in the digital multimeter can be provided by electric supply without consuming the energy of the built-in battery, the energy of the built-in battery can be used only when the digital multimeter is separated from the testing assembly line temporarily, the service life of the built-in battery can be greatly prolonged, the generation amount of waste batteries is reduced, the ecological environment can be protected and the production cost of enterprises is reduced.
Description
Technical field
The utility model relates to digital multimeter, is the external power adapter as the digital multimeter accessory specifically.
Background technology
Known digital multimeter, its inside disposable special-purpose square piece shape battery of all packing into.During as non-recurrent use; this battery can use the long period; but for electronic product manufacturer; digital multimeter on its test streamline is in running order always; battery consumption is very fast, needs often to change battery, and the one, increase cost; the 2nd, refuse battery is more unmanageable environmental contaminants, and a large amount of refuse batteries that produce are unfavorable for ecological protection.
The utility model content
The purpose of this utility model is to provide a kind of external power adapter that is applicable to digital multimeter that need not often to change battery.
The purpose of this utility model can realize by following technical measures:
A kind of external power adapter that is applicable to digital multimeter, constitute by plug body and power line, plug body has plug, and direct current regulation circuit is housed in the plug body, it is characterized in that the other end weldering of power line connects the hasp that is connected with digital multimeter reserve battery both positive and negative polarity.
Similar of the present utility model is in charger for mobile phone; volume is small and exquisite; when on the test streamline, using; the plug of plug body is connected with AC Power supply socket, and the power consumption in the digital multimeter is promptly provided by civil power and no longer consumes the energy of internal battery, has only when leaving and tests the electric energy that just consumes internal battery when streamline uses temporarily; can significantly prolong the useful life of internal battery; the generation of refuse battery reduces, and helps ecological environmental protection, has also reduced the production cost of enterprise.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the digital multimeter schematic rear view.
Embodiment
Be applicable to the external power adapter of digital multimeter, be made into integration by plug body 23 and power line 22, plug body 23 is shaped on the plug 21 that plugs together with AC Power supply socket, be packaged with rectification, direct current regulation circuit, charging circuit in the plug body 23, the weldering of the other end of power line 22 connects the hasp 24 that is connected with the reserve battery both positive and negative polarity of digital multimeter 1, and this hasp has positive pole and connects and detain and negative pole connects button.Be provided with and the identical hasp 12 of known 9V reserve battery both positive and negative polarity shape at digital multimeter 1 back side, the positive pole of this hasp connects button and connects to deduct points with negative pole and be not connected with the both positive and negative polarity of built-in reserve battery.During use, hasp 24 and hasp 12 linked get final product.Mark 11 is internal battery Cang Gai among the figure, and mark 13 is a selector switch, is used for the selection of internal or external operating state.
Claims (1)
1. external power adapter that is applicable to digital multimeter, constitute by plug body (23) and power line (22), plug body (23) has plug (21), plug body is equipped with direct current regulation circuit in (23), it is characterized in that the other end weldering of power line (22) connects the hasp (24) that is connected with digital multimeter reserve battery both positive and negative polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920122872XU CN201466988U (en) | 2009-06-19 | 2009-06-19 | External power adapter for digital multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920122872XU CN201466988U (en) | 2009-06-19 | 2009-06-19 | External power adapter for digital multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466988U true CN201466988U (en) | 2010-05-12 |
Family
ID=42394335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920122872XU Expired - Fee Related CN201466988U (en) | 2009-06-19 | 2009-06-19 | External power adapter for digital multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466988U (en) |
-
2009
- 2009-06-19 CN CN200920122872XU patent/CN201466988U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Guang Document name: Notification of patent rights granted to utility models and formalities for registration |
|
| 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: 20100512 Termination date: 20100619 |