CN201937324U - Power supply device with double power sources - Google Patents
Power supply device with double power sources Download PDFInfo
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- CN201937324U CN201937324U CN2010206622458U CN201020662245U CN201937324U CN 201937324 U CN201937324 U CN 201937324U CN 2010206622458 U CN2010206622458 U CN 2010206622458U CN 201020662245 U CN201020662245 U CN 201020662245U CN 201937324 U CN201937324 U CN 201937324U
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- power supply
- power
- gas meter
- supply device
- voltage
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Abstract
The utility model discloses a power supply device with double power sources, which relates to the intelligent gas field and can resolve the problem that a gas meter cannot work normally as an external power source is in power failure. The power supply device with double power sources comprises an external power source, a gas meter circuit and an internal power source, an anode of the external power source is connected with an anode of a main diode, a cathode of the main diode is connected with a power input end of the gas meter circuit, an anode of the internal power source is connected with an anode of a secondary diode, and a cathode of the secondary diode is connected with the power input end of the gas meter circuit. The power supply device with double power sources of an embodiment of the utility model can be applied into an intelligent gas meter.
Description
Technical field
The utility model relates to the intelligent gas meter field, relates in particular to a kind of dual power supply device.
Background technology
Existing gas meter, flow meter adopts the mode of external power supply power supply to keep using, and just closes valve when battery is not enough, but but some inconvenience during practical application.Such as:
(1), when battery is not enough, can't carry out the corresponding operating of the gas meter, flow meter of IC-card formula, can not correctly use.
(2), have a power failure for a long time, can cause the waste of power supply power supply, this also can occur checking meter, trouble that can't communication.
How to avoid because external power supply urgent problem when not having electricity to cause situation that gas meter, flow meter can't operate as normal to take place.
The utility model content
Embodiment of the present utility model provides a kind of dual power supply device, is used to solve because external power supply does not have electricity to cause the problem that gas meter, flow meter can't operate as normal.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of dual power supply device, comprise external power supply and gas meter, flow meter circuit, also comprise built-in power, the positive pole of described external power supply is connected with the positive pole of main diode, the negative pole of described main diode is connected with the power input of described gas meter, flow meter circuit, the positive pole of described built-in power is connected with the positive pole of time diode, and the negative pole of described diode is connected with the power input of described gas meter, flow meter circuit.
Further, in order better to remind the electric power thus supplied of user's external power supply, described built-in power is connected with buzzer by control chip, and described built-in power is controlled described buzzer by control chip.When described external power supply did not have electricity, described built-in power made described honey device sounding by described control chip.
Further, the voltage of described external power supply is greater than the voltage of described built-in power.
Concrete, the voltage of described external power supply is 6V.The voltage of described built-in power is 3.6V.
The dual power supply device that the utility model embodiment provides, because the positive pole of described external power supply is connected with the positive pole of main diode, the negative pole of described main diode is connected with the power input of described gas meter, flow meter circuit, the positive pole of described built-in power is connected with the positive pole of time diode, the negative pole of described diode is connected with the power input of described gas meter, flow meter, the voltage of described external power supply is greater than the voltage of described built-in power, at the voltage of described external power supply during greater than described built-in power voltage, described gas meter, flow meter circuit is powered by described main diode by described external power supply, the voltage of the power input of described gas meter, flow meter circuit causes described diode for cut-off state greater than the voltage of described built-in power at this moment.And, when described external power supply does not have electricity, will voltage be provided for described gas meter, flow meter circuit by described diode by described built-in power, thereby prolong the service time of gas meter, flow meter, solve because external power supply does not have electricity to cause the problem that gas meter, flow meter can't operate as normal.
Description of drawings
The structural representation one of the dual power supply device that Fig. 1 provides for the utility model embodiment;
The structural representation two of the dual power supply device that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of dual power supply device, is used to solve owing to damage the problem that gas meter, flow meter causes combustion gas to be revealed.
Below in conjunction with accompanying drawing the dual power supply device that the utility model embodiment provides is described in detail.
As shown in Figure 1, the dual power supply device that the embodiment of the invention provides, comprise external power supply 1 and gas meter, flow meter circuit 2, also comprise built-in power 3, the positive pole of described external power supply 1 is connected with the positive pole of main diode 4, the negative pole of described main diode 4 is connected with the power input of described gas meter, flow meter circuit 2, and the positive pole of described built-in power 3 is connected with the positive pole of time diode 5, and the negative pole of described diode 5 is connected with the power input of described gas meter, flow meter circuit 2.
Further, in order better to remind the electric power thus supplied of user's external power supply, as shown in Figure 2, described built-in power 3 is connected with buzzer 7 by control chip 6, and described built-in power is controlled described buzzer 7 by control chip.When described external power supply 1 did not have electricity, described built-in power 3 made described honey device 7 sounding by described control chip 6.
Further, the voltage of described external power supply is greater than the voltage of described built-in power.
Concrete, the voltage of described external power supply is 6V.The voltage of described built-in power is 3.6V.
The dual power supply device that the utility model embodiment provides, because the positive pole of described external power supply is connected with the positive pole of main diode, the negative pole of described main diode is connected with the power input of described gas meter, flow meter circuit, the positive pole of described built-in power is connected with the positive pole of time diode, the negative pole of described diode is connected with the power input of described gas meter, flow meter, the voltage of described external power supply is greater than the voltage of described built-in power, at the voltage of described external power supply during greater than described built-in power voltage, described gas meter, flow meter circuit is powered by described main diode by described external power supply, the voltage of the power input of described gas meter, flow meter circuit causes described diode for cut-off state greater than the voltage of described built-in power at this moment.And, when described external power supply does not have electricity, will voltage be provided for described gas meter, flow meter circuit by described diode by described built-in power, thereby prolong the service time of gas meter, flow meter, solve because external power supply does not have electricity to cause the problem that gas meter, flow meter can't operate as normal.
The duplicate supply device that the utility model embodiment provides can be applied in the intelligent gas meter.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (5)
1. dual power supply device, comprise external power supply and gas meter, flow meter circuit, it is characterized in that, also comprise built-in power, the positive pole of described external power supply is connected with the positive pole of main diode, the negative pole of described main diode is connected with the power input of described gas meter, flow meter circuit, and the positive pole of described built-in power is connected with the positive pole of time diode, and the negative pole of described diode is connected with the power input of described gas meter, flow meter circuit.
2. dual power supply device according to claim 1 is characterized in that described built-in power is connected with buzzer by control chip, and described built-in power is controlled described buzzer by control chip.
3. dual power supply device according to claim 1 and 2 is characterized in that the voltage of described external power supply is greater than the voltage of described built-in power.
4. dual power supply device according to claim 3 is characterized in that, the voltage of described external power supply is 6V.
5. dual power supply device according to claim 3 is characterized in that, the voltage of described built-in power is 3.6V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206622458U CN201937324U (en) | 2010-12-16 | 2010-12-16 | Power supply device with double power sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206622458U CN201937324U (en) | 2010-12-16 | 2010-12-16 | Power supply device with double power sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937324U true CN201937324U (en) | 2011-08-17 |
Family
ID=44448831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206622458U Expired - Fee Related CN201937324U (en) | 2010-12-16 | 2010-12-16 | Power supply device with double power sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937324U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092404A (en) * | 2017-12-28 | 2018-05-29 | 东本电气科技(苏州)有限公司 | Remote transmitting gas meter with reserve battery |
| CN108134445A (en) * | 2017-12-28 | 2018-06-08 | 东本电气科技(苏州)有限公司 | Farad capacitor drives valving under low pressure |
| CN110729811A (en) * | 2019-10-17 | 2020-01-24 | 浙江威星智能仪表股份有限公司 | Main and standby power switching circuit of electronic gas meter |
-
2010
- 2010-12-16 CN CN2010206622458U patent/CN201937324U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092404A (en) * | 2017-12-28 | 2018-05-29 | 东本电气科技(苏州)有限公司 | Remote transmitting gas meter with reserve battery |
| CN108134445A (en) * | 2017-12-28 | 2018-06-08 | 东本电气科技(苏州)有限公司 | Farad capacitor drives valving under low pressure |
| CN110729811A (en) * | 2019-10-17 | 2020-01-24 | 浙江威星智能仪表股份有限公司 | Main and standby power switching circuit of electronic gas meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: PENG XIANG ELECTRONIC SCIENCE & TECHNOLOGY CO., LTD. Assignor: Cao Guoquan Contract record no.: 2012510000082 Denomination of utility model: Double-power power supply unit and method Granted publication date: 20110817 License type: Exclusive License Record date: 20120816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20161216 |