CN201093117Y - Valve on-site auto-power-off device - Google Patents
Valve on-site auto-power-off device Download PDFInfo
- Publication number
- CN201093117Y CN201093117Y CNU2007201824606U CN200720182460U CN201093117Y CN 201093117 Y CN201093117 Y CN 201093117Y CN U2007201824606 U CNU2007201824606 U CN U2007201824606U CN 200720182460 U CN200720182460 U CN 200720182460U CN 201093117 Y CN201093117 Y CN 201093117Y
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- switch
- valve
- motor
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- diode
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Abstract
The utility model relates to the valve control part of an intelligent water meter, in particular to an automatic power-dwon device when the valve is in place. The utility model is characterized in that the control circuit of an electric motor is connected with the two wire connecting terminals of the electric motor electrically respectively through a first switch (K1) and a second switch (K2). The first switch (K1) is connected in parallel with a first diode (D1), and the second switch (K2) is connected in parallel with a second diode (D2). The output shaft of the electric motor is connected with a sector gear (3) through transmission, and the sector gear (3) cooperates with the first switch (K1) and the second switch (K2) to sway and switch on or off the first switch (K1) or the second switch (K2) driven by the electric motor. If a halted system occurs to a single-chip computer, the power is cut off automatically when the valve is in place; therefore, the battery voltage is restored to a normal condition and the single-chip computer restarts automatically, thereby reducing the situation in which the battery is exhausted due to the halted system as far as possible.
Description
Technical field
Valve control section, the especially valve that the utility model the relates to intellectual water meter auto-power-off device that puts in place.
Background technique
Valve is the critical component of intellectual water meter, therefore valve design must satisfy working medium aspects such as pressure, temperature, burn into fluid characteristics and operation, manufacturing, installation, maintenance to whole requirements that valve proposes, require especially that the pressure loss is little, volume is little, low in energy consumption.The pressure loss will reach the requirement of regulation among the Chinese cities and towns construction industry standard C J/T133-2001 " IC-card cold-water meter "≤0.1 M p a, and intellectual water meter can only use powered battery usually, and requires long-term stable operation.If power consumption is big, can only adopt high capacity cell, not only increased cost, and the intellectual water meter volume must increase also; Moreover battery moment power supply capacity is limited, and power consumption can not be dealt with problems to a certain degree increasing battery capacity greatly.
Circuit board sends out valve or closes after the valve instruction, and in the process of machine operation, electric current may increase sharply and cause voltage to descend.If voltage drops near the single-chip microcomputer operating voltage or below, two kinds of situation: A, deadlock will appear in single-chip microcomputer; B, reset.If reset, the back circuit board automatic shop valve door operation that then resets, but if crash, then valve will stop (even putting in place) never, thereby cause electric weight to be exhausted very soon, cause plug-in card not respond, do not measure or the like situation.In addition,, then may occur: A, repeat switch valve again when resetting, the generation that causes reset operation not stop if reset; Even B does not repeat situation about resetting, but the status indicator of valve is irregular menstrual period, such as: put valve state when driving valve for opening, but the late gate state that resets is changed to off status automatically, thereby causes the valve state that writes down and actual valve state opposite situation to occur.
The model utility content
The purpose of this utility model provides a kind of valve auto-power-off device that puts in place, can reduce the situation that crashes and cause battery consumption to finish of occurring as far as possible.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of valve auto-power-off device that puts in place, its specialization is, the control circuit of motor is electrically connected with two tenminal blocks of motor by first switch and second switch respectively, and first switch is in parallel with first diode, and second switch is in parallel with second diode; At the output shaft of the motor tooth sector that is in transmission connection, thereby this tooth sector matches at the driven by motor lower swing with first switch and second switch and opens, closes first switch or second switch.
Wherein motor is a direct current generator.
Further, wherein the output shaft of motor is connected with tooth sector by driving mechanism.
Clearly, adopt the technical solution of the utility model, if the situation of single chip microcomputer halt also occurs, after valve operation puts in place, automatically cut off the electricity supply, then cell voltage will return to normal condition, and single-chip microcomputer resets automatically, thereby reduce the situation that deadlock causes battery consumption to finish that occurs as far as possible.
Description of drawings
Accompanying drawing 1 is circuit theory diagrams of the present utility model;
Accompanying drawing 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
As shown in Figure 1, 2:
1, when valve is in closed condition, first K switch 1 is in off state, and second switch K2 is in closed state, referring to Fig. 1;
2, when valve is in open mode, second switch K2 is in off state, and first K switch 1 is in closed state;
When 3, opening valve:
1. " open " port for anodal;
2. open valve moment, electric current is flowed through through the first diode D1 from positive pole behind the motor, flows into negative pole, motor forward rotation through second switch K2 again;
3. tooth sector 3 rotates thereupon and will cause first K switch 1 to become closed state from off state.This moment, electric current flowed into negative pole from positive pole through first K switch 1, motor, second switch K2;
4. tooth sector 3 rotates and arrives after the second switch K2, will cause second switch K2 to disconnect, and the second diode D2 begins to stop electric current.Electric current can not pass through second switch K2, can not flow into negative pole, electric current automatic disconnection, motor stall by the second diode D2.
4, during throttle down: order with 3 opposite.
1. " close " port for anodal;
2. close valve moment, electric current is flowed through through the second diode D2 from positive pole behind the motor, flows into negative pole, motor forward rotation through first K switch 1 again;
3. tooth sector 3 rotates thereupon and will cause second switch K2 to become closed state from off state.This moment, electric current flowed into negative pole from positive pole through second switch K2, motor, first K switch 1;
4. tooth sector 3 rotates and arrives after first K switch 1, will cause first K switch 1 to disconnect, and the first diode D1 begins to stop electric current.Electric current can not pass through first K switch 1, can not flow into negative pole, electric current automatic disconnection, motor stall by the first diode D1.
Wherein motor adopts direct current generator, and the control circuit of motor adopts existing custom circuit, and the output shaft of motor is connected with tooth sector 3 by driving mechanism, and driving mechanism adopts some pitch wheels or other existing usual manner.
Claims (3)
1. valve auto-power-off device that puts in place is characterized in that:
The control circuit of motor is electrically connected with two tenminal blocks of motor by first switch (K1) and second switch (K2) respectively, and first switch (K1) is in parallel with first diode (D1), and second switch (K2) is in parallel with second diode (D2);
At the output shaft of the motor tooth sector (3) that is in transmission connection, this tooth sector (3) and first switch (K1) and second switch (K2) thus match at the driven by motor lower swing and open, close first switch (K1) or second switch (K2).
2. the valve as claimed in claim 1 auto-power-off device that puts in place, it is characterized in that: wherein motor is a direct current generator.
3. the valve as claimed in claim 1 or 2 auto-power-off device that puts in place, it is characterized in that: wherein the output shaft of motor is connected with tooth sector (3) by driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201824606U CN201093117Y (en) | 2007-09-21 | 2007-09-21 | Valve on-site auto-power-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201824606U CN201093117Y (en) | 2007-09-21 | 2007-09-21 | Valve on-site auto-power-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093117Y true CN201093117Y (en) | 2008-07-30 |
Family
ID=39901084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201824606U Expired - Fee Related CN201093117Y (en) | 2007-09-21 | 2007-09-21 | Valve on-site auto-power-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093117Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246985A (en) * | 2016-08-25 | 2016-12-21 | 电子科技大学 | A kind of electric proportional-regulation valve controlled based on pwm signal |
-
2007
- 2007-09-21 CN CNU2007201824606U patent/CN201093117Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246985A (en) * | 2016-08-25 | 2016-12-21 | 电子科技大学 | A kind of electric proportional-regulation valve controlled based on pwm signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080730 Termination date: 20110921 |