CN202600005U - Touch type electric energy meter - Google Patents
Touch type electric energy meter Download PDFInfo
- Publication number
- CN202600005U CN202600005U CN2012202715289U CN201220271528U CN202600005U CN 202600005 U CN202600005 U CN 202600005U CN 2012202715289 U CN2012202715289 U CN 2012202715289U CN 201220271528 U CN201220271528 U CN 201220271528U CN 202600005 U CN202600005 U CN 202600005U
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- electric energy
- touch
- energy meter
- wiring board
- membrane keyboard
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Abstract
The utility model discloses a touch type electric energy meter, which comprises a surface shell (1) and an electronic measurement circuit board (2) which is arranged in the surface shell (1), wherein a touch key (3) is arranged at a position close to the inner surface of the surface shell (1) on the electronic measurement circuit board (2), is electrically connected with the electronic measurement circuit board (2) and is used for inducing body capacitance to generate a trigger signal and then subsequently control work of the electronic measurement circuit board (2) in a measurement circuit. Compared with the prior art, a control switch is triggered by taking body touch as a control signal; since the control switch, the touch key, of the electric energy meter is not exposed out of the surface shell, the electric energy meter has ideal water-proof and dust-proof effects, and long-term stable and reliable work of the electric energy meter is guaranteed; and the touch key is not truly and mechanically pressed down and is difficult to strip, so that the electric energy meter has longer service life and is extremely practical.
Description
Technical field
The utility model relates to a kind of electric energy meter, relates in particular to a kind of touch electric energy table of realizing switch according to induction body capacitance signal.
Background technology
Electric energy meter is the instrument in order to metering " " this specialty goods, has been widely used in measuring power consumption such as family, enterprise's office or factory.Be generally electronic electric energy meter at present; Comprise watchcase and be arranged on sensor in the watchcase, electronic surveying wiring board, in order to show the display of variable; Wherein, Sensor is connected with the power lead of the load of flowing through, and the signal that the metering circuit in the electronic surveying wiring board just produces through sensor is also carried out various calculating, thereby obtains the consumed energy of load.Because electric energy meter needs non-stop run 24 hours every days, and the installation environment of electric energy meter is complicated, abominable sometimes, and this functional reliability to electric energy meter has proposed higher requirement.
Present electric energy meter; Its trigger switch all adopts the mechanical type button; This makes that the performance of electric energy meter aspect waterproof and dustproof is as one wishes not to the utmost, is difficult to adapt to various complicacies, bad working environment, and the mechanical type button is long service time one; Become flexible easily, drop, be difficult to guarantee electric energy meter for a long time, reliable operation stably.Therefore, existing electric energy meter needs further to improve.
The utility model content
The utility model technical matters to be solved is to the prior art present situation a kind of touch electric energy table to be provided; It can produce signal according to the induction body capacitance and realize switch; Thereby make the waterproof and dustproof of electric energy meter satisfactory for result, guarantee electric energy meter for a long time, reliable operation stably.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this touch electric energy table; Comprise watchcase and the electronic surveying wiring board that is arranged in the watchcase; It is characterized in that: on the electronic surveying wiring board, press close to watchcase inside surface position and be provided with a membrane keyboard; This membrane keyboard and said electronic surveying wiring board are electrically connected, and this membrane keyboard produces trigger pip in order to the induction body capacitance, controls the work of electronic surveying wiring board then.
As further improvement; On the said electronic surveying wiring board metering circuit and touch-control circuit are set; This touch-control circuit comprises a touch-control chip and a signal amplification circuit; Said membrane keyboard links to each other with the signal input pin of this touch-control chip, and the signal output pin of touch-control chip links to each other with signal amplification circuit, and signal amplification circuit links to each other with metering circuit.This touch-control chip is exported to signal amplification circuit according to the trigger pip that membrane keyboard gives, and carries out signal and amplifies, and controls the conducting of metering circuit in the electronic surveying wiring board or open close then.
Preferably, said membrane keyboard is the sensing chip that a conducting metal system or surface are coated with conductive metal layer.
Compared with prior art; The design of the membrane keyboard of the utility model through responding to body capacitance; The user is with the corresponding position of the corresponding membrane keyboard of light finger light touches watchcase outside surface; Can make membrane keyboard generation trigger pip and realize switch control, that is, be that control signal triggers CS by human body touch; Since electric energy meter CS---membrane keyboard does not expose to outside the watchcase; Make the waterproof and dustproof of electric energy meter satisfactory for result; Guarantee electric energy meter for a long time, the real mechanical compression of reliable operation stably, and membrane keyboard, difficult drop-off; Make electric energy meter have long serviceable life, very practical.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the circuit diagram of touch-control circuit among the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Like Fig. 1, shown in Figure 2, be preferred embodiment of the utility model.This touch electric energy table comprises watchcase 1 and the electronic surveying wiring board 2 that is arranged in the watchcase 1;
On electronic surveying wiring board 2, the position of pressing close to watchcase 1 inside surface is provided with a membrane keyboard 3, in the present embodiment, said membrane keyboard 3 is the sensing chip of a conducting metal system;
Said electronic surveying wiring board 2 is provided with a metering circuit and a touch-control circuit; Wherein, the metering circuit that is used to measure power consumption is a custom circuit, and touch-control circuit comprises a touch-control chip 4 and a signal amplification circuit 5; Said membrane keyboard 3 links to each other with the signal input pin of this touch-control chip 4; The signal output pin of touch-control chip 4 links to each other with signal amplification circuit 5, and membrane keyboard 3 produces trigger pip in order to the induction body capacitance, gathers stable trigger pip through touch-control chip 4; After signal amplification circuit 5 signals amplify, link to each other again, thereby realize controlling the work of metering circuit in the electronic surveying wiring board 2 through touching membrane keyboard 3 with metering circuit.
Claims (3)
1. touch electric energy table; Comprise watchcase (1) and be arranged on the electronic surveying wiring board (2) in the watchcase (1); It is characterized in that: the position of going up, press close to watchcase (1) inside surface at electronic surveying wiring board (2) is provided with a membrane keyboard (3); This membrane keyboard (3) is electrically connected with said electronic surveying wiring board (2), and this membrane keyboard (3) produces trigger pip in order to the induction body capacitance, controls the work of metering circuit in the electronic surveying wiring board (2) then.
2. touch electric energy table as claimed in claim 1; It is characterized in that: a metering circuit and a touch-control circuit are set on the said electronic surveying wiring board (2); This touch-control circuit comprises a touch-control chip (4) and a signal amplification circuit (5); Said membrane keyboard (3) links to each other with the signal input pin of this touch-control chip (4), and the signal output pin of touch-control chip (4) links to each other with signal amplification circuit (5), and signal amplification circuit (5) links to each other with metering circuit.
3. according to claim 1 or claim 2 touch electric energy table, it is characterized in that: said membrane keyboard (3) is the sensing chip that a conducting metal system or surface are coated with conductive metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202715289U CN202600005U (en) | 2012-06-09 | 2012-06-09 | Touch type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202715289U CN202600005U (en) | 2012-06-09 | 2012-06-09 | Touch type electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600005U true CN202600005U (en) | 2012-12-12 |
Family
ID=47317535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202715289U Expired - Fee Related CN202600005U (en) | 2012-06-09 | 2012-06-09 | Touch type electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692532A (en) * | 2012-06-09 | 2012-09-26 | 慈溪市一得电子仪表有限公司 | Touch electric energy meter |
-
2012
- 2012-06-09 CN CN2012202715289U patent/CN202600005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692532A (en) * | 2012-06-09 | 2012-09-26 | 慈溪市一得电子仪表有限公司 | Touch electric energy meter |
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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: 20121212 Termination date: 20150609 |
|
| EXPY | Termination of patent right or utility model |