CN208297607U - power meter - Google Patents
power meter Download PDFInfo
- Publication number
- CN208297607U CN208297607U CN201820434731.0U CN201820434731U CN208297607U CN 208297607 U CN208297607 U CN 208297607U CN 201820434731 U CN201820434731 U CN 201820434731U CN 208297607 U CN208297607 U CN 208297607U
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- power meter
- rubber ring
- rear cover
- front cover
- converter
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Abstract
The main purpose of the utility model is to provide a kind of power meters, including front cover, rear cover, input-output system, the power meter has connection structure, the elastic rubber ring that the connection structure has the arc groove around its front end face surrounding, is contained in the groove, the prominent arc groove of the rubber ring, the front cover is installed on the rear cover by the rubber ring, power meter disassembly installation does not need tool, it dismantles easy for installation, it is time saving and energy saving, and have the advantages that after the two housings installation of power meter dust-proof.
Description
Technical field
The utility model belongs to electrical facility technical field, and in particular to one kind can stablize the power meter of installation.
Background technique
Currently, existing power meter cage connection mode, mainly passing through the standard configurations part such as manually drill, then cooperate screw will
Power meter installs, and major defect has: power meter in-site installation is inconvenient, and needs manually to carry out installation electric energy meter with tool,
Huge artificial, another aspect is expended, when needing to power meter maintenance, the tool of reusing carries out disassembly power meter, causes function
The installation of rate table or repairing replacing construction are longer, artificial to expend also than more serious.
Therefore, it is necessary to it is a kind of it is improved can Fast Installation, fast quick-detach power meter apparatus overcome the prior art
It is insufficient.
Utility model content
The main purpose of the utility model is to provide a kind of power meter, the electric energy meter device has dust-proof and does not need
Tool realizes the advantages of electric energy meter device Quick Release fast-assembling.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of power meter, including front cover, after
Lid, input-output system, the input-output system have display screen, and the display screen is fixed on the front cover, the function
Rate table also has voltage sensor, current sensor, the amplifier for being connected to the voltage sensor and current sensor, bilateral
Road analog switch, the A/D converter for being connected to dual-channel analog switch, with the level shifting circuit of the A/D converter,
The SCM system for being connected to the DSP computer system of the level shifting circuit, being connected to the DSP computer system, institute
State single-chip microcontroller and be connected to the input-output system, the Phase-Locked Synchronous sampling control circuit be connected to the amplifier with it is described
Level shifting circuit, the power meter have connection structure, and the connection structure has the arc around its front end face surrounding recessed
Slot, the elastic rubber ring for being contained in the groove, the prominent arc groove of the rubber ring, the front cover pass through the rubber
Circle is installed on the rear cover.
In order to solve the above technical problems, the utility model is further arranged to: also there is touch-screen-enabled on the display screen,
User can be configured the power meter.
In order to solve the above technical problems, the electric energy meter is movably mounted to the electricity box, the power meter has LED
Lamp, the touch-screen-enabled have LED light switch control LED.
In order to solve the above technical problems, the utility model is further arranged to: the A/D converter is 16 high-speed a/ds
Converter ADS7805, the level shifting circuit have 74LVC4245 chip.
In order to solve the above technical problems, the utility model is further arranged to: the rear cover has annular groove, the rubber
The protrusion of the circle groove part is housed in the annular groove.
The utility model has the following beneficial effects: power meter disassembly installation does not need tool, disassembly is easy for installation, time saving
It is laborsaving, and have the advantages that after the two housings installation of power meter dust-proof.
Detailed description of the invention
Fig. 1 is the power meter perspective view of the utility model.
Fig. 2 is the schematic diagram of the power watch back cover of the utility model.
Fig. 3 is the module map of the power meter of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1 to Figure 3, a kind of power meter, including front cover 12, rear cover 11, voltage sensor, current sensor, company
It is connected to the amplifier of the voltage sensor and current sensor, dual-channel analog switch, the dual-channel analog is connected to and opens
The level shifting circuit of the A/D converter of pass and the A/D converter, the DSP computer for being connected to the level shifting circuit
System, the SCM system for being connected to the DSP computer system, the input-output system for being connected to the single-chip microcontroller, input
Output system has display screen 13, and display screen 13 is fixed on the front cover 12, the Phase-Locked Synchronous sampling control circuit connection
In the amplifier and the level shifting circuit, the power meter has connection structure (not indicating), the connection structure tool
The elastic rubber ring (not shown) for having the arc groove (15) around its front end face surrounding, being contained in the groove, the rubber
The prominent arc groove of circle, the front cover (12) are installed on the rear cover (11) by the rubber ring, and the rear cover 11 is pacified
During front cover 12, rubber ring deformation is squeezed, after rear cover 11 installs, the rubber ring of prominent rear cover 11 is contained in front cover
In annular groove (not shown), the input-output system of power meter have touch-screen-enabled to power meter carry out parameter setting, to LED into
Row switch, LED light are located in the rear cover 11 of power meter.
For dual-channel analog switch using AD7502 come sampling while carrying out multiple signals, A/D converter chooses 16 height
Position A/D converter ADS7805, to reduce A, B, C three-phase sampling time difference bring phase error.Level conversion uses
74LVC4245 chip is connected to ADS7805 between dsp chip.
Front cover and rear cover are installed together by rubber ring in the utility model, are firmly installed, moreover it is possible to seal front cover with after
Dust-proof effect is played in gap between lid.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (5)
1. a kind of power meter, including front cover (12), rear cover (11), input-output system, the input-output system has display
Shield (13), the display screen (13) is fixed on the front cover (12), and the power meter also has Phase-Locked Synchronous controlling of sampling electric
Road, voltage sensor, current sensor, the amplifier for being connected to the voltage sensor and current sensor, dual-channel analog
Switch, the A/D converter that is connected to dual-channel analog switch, with the level shifting circuit of the A/D converter, be connected to
The DSP computer system of the level shifting circuit, the SCM system for being connected to the DSP computer system, the monolithic
Machine is connected to the input-output system, and the Phase-Locked Synchronous sampling control circuit is connected to the amplifier and the level turns
Change circuit, it is characterised in that: the power meter has connection structure, and the connection structure has the arc around its front end face surrounding
Connected in star (15), the elastic rubber ring for being contained in the groove, the prominent arc groove of the rubber ring, the front cover (12)
The rear cover (11) are installed on by the rubber ring.
2. power meter according to claim 1, it is characterised in that: also have touch-screen-enabled on the display screen (13)
(14), user can be configured the power meter.
3. power meter according to claim 2, it is characterised in that: the power meter has LED light, the touch-screen-enabled
With LED light switch control LED.
4. power meter according to claim 1, it is characterised in that: the A/D converter is 16 high-speed a/d converters
ADS7805, the level shifting circuit have 74LVC4245 chip.
5. power meter according to claim 1, it is characterised in that: the rear cover has annular groove, the rubber ring
The prominent groove part is housed in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434731.0U CN208297607U (en) | 2018-03-29 | 2018-03-29 | power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434731.0U CN208297607U (en) | 2018-03-29 | 2018-03-29 | power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208297607U true CN208297607U (en) | 2018-12-28 |
Family
ID=64695696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820434731.0U Active CN208297607U (en) | 2018-03-29 | 2018-03-29 | power meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208297607U (en) |
-
2018
- 2018-03-29 CN CN201820434731.0U patent/CN208297607U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |