CN207867611U - Using the code pre-paying kilowatt-hour meter of touch key-press - Google Patents
Using the code pre-paying kilowatt-hour meter of touch key-press Download PDFInfo
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- CN207867611U CN207867611U CN201820285616.1U CN201820285616U CN207867611U CN 207867611 U CN207867611 U CN 207867611U CN 201820285616 U CN201820285616 U CN 201820285616U CN 207867611 U CN207867611 U CN 207867611U
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- upper cover
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- keypad
- press
- hour meter
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Abstract
Using the code pre-paying kilowatt-hour meter of touch key-press, including pedestal, the upper cover of connection on the base, table inner cavity is formed between the pedestal and upper cover, there is main circuit board in the table inner cavity, there is capacitive induction keypad in the table inner cavity, the capacitive induction keypad is equipped with 12 induction keyboards, the induction keyboard part of capacitive induction keypad is carved with and one-to-one 09 numerical chracter of 12 induction keyboards and * symbols, # symbols by being connected on the inside of the upper surface of double faced adhesive tape and upper cover on the outside of the upper surface of the upper cover；The capacitive induction keypad is connect with the main circuit board by I2C buses.The installation that the utility model does not have keyboard connecting line to pass through watchcase bothers, and improves production efficiency；Ammeter it is inside and outside completely isolated, prevented moisture or etchant gas intrusion root, solve the influence that moisture measures electric energy meter.
Description
Technical field
The utility model is related to a kind of code pre-paying kilowatt-hour meters.
Background technology
Code pre-paying kilowatt-hour meter is that one kind that there is the encrypted numeric string of specific information to be operated is inputted using keyboard in advance
Pay electric energy meter, encrypted numeric string be exactly a token, it can be achieved that parameter setting, the electricity charge supplement with money, information inquiry etc. function, often
A electricity-selling system and its code prepayment meter of management all must there are one mutually general safe coding rules, wherein
STS（Standard transmission specification）It is the safe transmission standard of global open, IEC62055-41 standards is adopted as by IEC.Code is prepay
Expense is adopted extensively because there is the features such as unified standard, no specific transmission medium, anti-attack ability is strong, easy to operate understandable
With.
But the keyboard of code pre-payment is more, general 12 or more, and keyboard needs to be connected to line in the front of ammeter
On main circuit board, installation is very inconvenient, and there are poor sealing performance, button rapid wear and difficult the problems such as replacing.
Invention content
In order to solve the problems, such as code pre-paying kilowatt-hour meter, there are keyboard installations and replacement problem and poor sealing performance, this practicality
It is novel to propose a kind of code pre-paying kilowatt-hour meter using touch key-press.
The technical scheme in the invention for solving the technical problem is：Using the code pre-paying kilowatt-hour meter of touch key-press, packet
Pedestal, the upper cover of connection on the base are included, table inner cavity is formed between the pedestal and upper cover, has in the table inner cavity
Main circuit board also has in the table inner cavity capacitive induction keypad, the capacitive induction keypad to be equipped with 12
Induction keyboard, the induction keyboard part of capacitive induction keypad are described by being connected on the inside of the upper surface of double faced adhesive tape and upper cover
It is carved on the outside of the upper surface of upper cover and the one-to-one 0-9 numerical chracters of 12 induction keyboards and * symbols, # symbols；
The capacitive induction keypad is connect with the main circuit board by I2C buses.
Further, the upper surface of the upper cover offers opening, in the opening supersonic welding be connected to liquid crystal and check window
Mouthful.
Further, the liquid crystal checks that window is located in the upper cover.
Further, the upper cover is ABS material, the thickness 3mm-5mm of the upper surface of upper cover.
Further, it is sealed by sealing strip between the upper cover and the pedestal.
In use, user touch the symbol of engraving, capacitive induction keypad below senses capacitance variations,
The keyboard coding of identification, the MCU of electric energy meter is transferred to I2C bus modes by the corresponding number of identification, and MCU realizes code prepayment
Power-consuming table function.
The beneficial effects of the utility model are：1. passing through the installation of watchcase to bother without keyboard connecting line, life is improved
Produce efficiency；2. ammeter is inside and outside completely isolated, the root of moisture or etchant gas intrusion is prevented, has solved moisture to electric energy meter
The influence of metering；3. touch key-press do not have mechanical key poor contact, it is stuck the problems such as；4. wearing and replacing there is no keyboard
Problem.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Referring to Fig.1, using the code pre-paying kilowatt-hour meter of touch key-press, including pedestal 1, be connected to it is upper on the pedestal 1
Lid 2 is sealed by sealing strip between the upper cover 2 and the pedestal 1 described in the present embodiment.The pedestal 1 and upper cover 2 it
Between form table inner cavity 3, have main circuit board 4 in the table inner cavity 3, also have capacitive induction keypad in the table inner cavity 3
5, the capacitive induction keypad 5 is equipped with 12 induction keyboards, and the induction keyboard part of capacitive induction keypad 5 is logical
It crosses on the inside of double faced adhesive tape 6 and the upper surface of upper cover 2 and connect, be carved on the outside of the upper surface of the upper cover 2 and 12 induction keyboards
One-to-one 0-9 numerical chracters and * symbols, # symbols.
The capacitive induction keypad 5 is connect with the main circuit board 4 by I2C buses 7.
In use, user touch the symbol of engraving, capacitive induction keypad 5 below senses that capacitance becomes
Change, identify corresponding number, the keyboard coding of identification is transferred to the MCU of electric energy meter with I2C bus modes, MCU realizes code
Pre-paying kilowatt-hour meter function.
In the present embodiment, the upper surface of the upper cover 2 offers opening, in the opening supersonic welding be connected to liquid crystal and look into
See window 8, which checks that window 8 is located in the upper cover 2.
In the present embodiment, the upper cover 2 is ABS material, and the thickness 3mm-5mm of the upper surface of upper cover 2 is conducive to condenser type
The touch pressing detection of induced key plate.
Claims (5)
1. using the code pre-paying kilowatt-hour meter of touch key-press, including pedestal, the upper cover of connection on the base, the pedestal
Table inner cavity is formed between upper cover, has main circuit board in the table inner cavity, it is characterised in that：There is electricity in the table inner cavity
Appearance formula induced key plate, the capacitive induction keypad are equipped with 12 induction keyboards, the sense of capacitive induction keypad
It answers keyboard portion by being connected on the inside of the upper surface of double faced adhesive tape and upper cover, is carved with and 12 on the outside of the upper surface of the upper cover
The one-to-one 0-9 numerical chracters of induction keyboard and * symbols, # symbols；
The capacitive induction keypad is connect with the main circuit board by I2C buses.
2. using the code pre-paying kilowatt-hour meter of touch key-press as described in claim 1, it is characterised in that：The upper table of the upper cover
Face offers opening, in the opening supersonic welding be connected to liquid crystal and check window.
3. using the code pre-paying kilowatt-hour meter of touch key-press as claimed in claim 2, it is characterised in that：The liquid crystal is checked
Window is located in the upper cover.
4. the code pre-paying kilowatt-hour meter using touch key-press as described in one of claim 1-3, it is characterised in that：Described is upper
Lid is ABS material, the thickness 3mm-5mm of the upper surface of upper cover.
5. the code pre-paying kilowatt-hour meter using touch key-press as described in one of claim 1-3, it is characterised in that：Described is upper
It is sealed by sealing strip between lid and the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285616.1U CN207867611U (en) | 2018-03-01 | 2018-03-01 | Using the code pre-paying kilowatt-hour meter of touch key-press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285616.1U CN207867611U (en) | 2018-03-01 | 2018-03-01 | Using the code pre-paying kilowatt-hour meter of touch key-press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867611U true CN207867611U (en) | 2018-09-14 |
Family
ID=63456354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820285616.1U Active CN207867611U (en) | 2018-03-01 | 2018-03-01 | Using the code pre-paying kilowatt-hour meter of touch key-press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867611U (en) |
-
2018
- 2018-03-01 CN CN201820285616.1U patent/CN207867611U/en active Active
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