CN202550649U - Wireless doorbell power supply device - Google Patents
Wireless doorbell power supply device Download PDFInfo
- Publication number
- CN202550649U CN202550649U CN2012202222671U CN201220222267U CN202550649U CN 202550649 U CN202550649 U CN 202550649U CN 2012202222671 U CN2012202222671 U CN 2012202222671U CN 201220222267 U CN201220222267 U CN 201220222267U CN 202550649 U CN202550649 U CN 202550649U
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- CN
- China
- Prior art keywords
- battery
- lithium battery
- power supply
- dry
- lithium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a wireless doorbell power supply device, which comprises a dry battery. A lithium battery is connected with the dry battery in parallel. A battery selection circuit which is used for selecting the lithium battery or the dry battery to supply power is additionally arranged between the dry battery and the lithium battery. A lithium battery charging circuit is additionally arranged on the lithium battery. By adopting the structure, since the lithium battery is connected in parallel on the basis of the existing dry battery for power supply and the battery selection circuit which is used for selecting the lithium battery or the dry battery to supply power is additionally arranged between the dry battery and the lithium battery, a user can select the lithium battery or the dry battery to supply power by operating the battery selection circuit and the power supply options of a wireless doorbell are diversified; and besides, when the lithium battery is used for supplying power, the user can close the lithium battery charging circuit, the lithium battery is enabled to continuously supply power and be cyclically used, the quantity of waste dry batteries is decreased to a certain extent and the environmental protection is facilitated.
Description
Technical field
The utility model relates to a kind of wireless doorbell electric supply installation.
Background technology
At present, existing wireless doorbell only adopts dry cell to supply power usually, so not only causes the unification of wireless doorbell electric supply installation; And dry cell is after use, and can't charge reuses, so this just needs the user regularly to remove to change dry cell; Cause inconvenience to the user; And after changing, the generation of discarded dry cell also pollutes environment easily in a large number.
Summary of the invention
To the deficiency of prior art, the utility model provides a kind of wireless doorbell electric supply installation of supplying power and selecting diversification, using more environmental protection.
For realizing above-mentioned purpose; The utility model provides a kind of wireless doorbell electric supply installation; Comprise dry cell, parallel connection is provided with lithium battery on the described dry cell, and also is provided with the battery selection circuit that is used to select lithium battery power supply or dry cell power supply between dry cell and the lithium battery.
The utility model can further be set to also be connected with on the described lithium battery lithium cell charging circuit.
The beneficial effect of the utility model is: adopt said structure, because parallel connection is provided with lithium battery on the existing dry cell basis that is used to supply power, and also be provided with the battery selection circuit that is used to select lithium battery power supply or dry cell power supply between dry cell and the lithium battery; Therefore the user can select circuit through controlling battery, selects to use lithium battery power supply or dry cell power supply, and then makes the power supply of wireless doorbell select more diversification; In addition; When lithium battery power supply, the user also can open the lithium cell charging circuit simultaneously, thereby makes the sustainable power cycles of lithium battery use; Reduce the generation of discarded dry cell to a certain extent, helped environmental protection.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
As shown in Figure 1ly provided a kind of wireless doorbell electric supply installation; Comprise dry cell 1; Parallel connection is provided with lithium battery 2 on the described dry cell 1, and also is provided with the battery selection circuit that is used to select lithium battery 2 power supplies or dry cell 1 power supply between dry cell 1 and the lithium battery 2, and battery selects circuit mainly to be made up of control switch K1 and K2; K2 among K1 disconnection and the DC is closed, and dry cell 1 begins power supply; K2 among K1 closure and the DC is also closed, and lithium battery 2 begins power supply; When inserting external DC power supply, the K2 automatic disconnection realizes that powered battery isolates; External power supply can directly be supplied power to wireless doorbell this moment, so the user can select to use lithium battery 2 power supplies or dry cell 1 power supply through controlling battery selection circuit; And then make the power supply of wireless doorbell select more diversification, and also being connected with the lithium cell charging circuit on the described lithium battery 2, described lithium cell charging circuit is made up of D4, C1, C2, C3, R, U1; Wherein D4 is the insulation blocking diode, and C1, C2, C3 are filter capacitor, and R is a current-limiting resistance; U1 is voltage stabilizing IC, and when lithium battery 2 power supplies were selected by system, the lithium cell charging circuit can give lithium battery 2 chargings simultaneously; Thereby make lithium battery 2 sustainable power cycles use, reduced the generation of discarded dry cell 1 to a certain extent, help environmental protection.
Claims (2)
1. a wireless doorbell electric supply installation comprises dry cell, it is characterized in that: parallel connection is provided with lithium battery on the described dry cell, and also is provided with the battery selection circuit that is used to select lithium battery power supply or dry cell power supply between dry cell and the lithium battery.
2. wireless doorbell electric supply installation according to claim 1 is characterized in that: also be connected with the lithium cell charging circuit on the described lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202222671U CN202550649U (en) | 2012-05-17 | 2012-05-17 | Wireless doorbell power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202222671U CN202550649U (en) | 2012-05-17 | 2012-05-17 | Wireless doorbell power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550649U true CN202550649U (en) | 2012-11-21 |
Family
ID=47171217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202222671U Expired - Fee Related CN202550649U (en) | 2012-05-17 | 2012-05-17 | Wireless doorbell power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550649U (en) |
-
2012
- 2012-05-17 CN CN2012202222671U patent/CN202550649U/en not_active Expired - Fee Related
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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: 20121121 Termination date: 20140517 |