CN210372956U - Uninterruptible power supply lamp - Google Patents
Uninterruptible power supply lamp Download PDFInfo
- Publication number
- CN210372956U CN210372956U CN201921724654.3U CN201921724654U CN210372956U CN 210372956 U CN210372956 U CN 210372956U CN 201921724654 U CN201921724654 U CN 201921724654U CN 210372956 U CN210372956 U CN 210372956U
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- switch
- tube
- lamp
- rechargeable battery
- power
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Abstract
The utility model discloses an uninterrupted power source lamp, including the LED fluorescent tube, the LED fluorescent tube is fixed on the support in the lamps and lanterns casing, and the lamps and lanterns casing is equipped with power source, and power source has two access terminals, and two access terminals are used for passing through switch and mains connection, be provided with power automatic switching circuit in the lamps and lanterns casing, power automatic switching circuit provides uninterrupted power source for the LED lamp, the utility model discloses utilize a rechargeable battery and automatic switching circuit, can trun into battery powered automatically when having a power failure, realize that lamps and lanterns provide the illumination that lasts.
Description
Technical Field
The utility model relates to an uninterrupted power source lamp.
Background
The LED lamp is widely used for illumination due to energy conservation, has the characteristics of high brightness and low energy consumption, can be used as an independent lamp and can be directly connected with mains supply to provide illumination, when the mains supply is powered off in use, the lamp cannot provide illumination, is extremely inconvenient to use in an environment with frequent power failure, is inconvenient to move and is inconvenient to use when being far away from a power supply in a specific place.
Disclosure of Invention
An object of the utility model is to provide an uninterrupted power source lamp utilizes a rechargeable battery and automatic control circuit, can trun into the battery powered automatically when having a power failure, realizes that lamps and lanterns provide the illumination that lasts.
In order to realize the purpose, the technical scheme of the utility model is that: an uninterrupted power supply lamp comprises an LED lamp tube, the LED lamp tube is fixed on a support in a lamp shell, the lamp shell is provided with a power interface, the power interface is provided with two access terminals, the two access terminals are used for being connected with commercial power through a power switch, a power automatic switching circuit is arranged in the lamp shell and provides uninterrupted power for the LED lamp, wherein the power automatic switching circuit comprises a half-wave rectifying circuit, two alternating current input ends of the half-wave rectifying circuit are connected with the two access terminals of the power interface, one access terminal of the two access terminals is connected with a rectifying diode of the half-wave rectifying circuit, the other access terminal is connected with a direct current cathode output of the half-wave rectifying circuit through a reverse diode, the direct current output of the half-wave rectifying circuit is connected with a charging battery after being subjected to voltage reduction through a voltage reducer, and the anode of the charging battery is connected, the utility model discloses a switch tube LED lamp tube, including LED fluorescent tube, switch tube, rechargeable battery, switch drive circuit, switch tube, half-wave rectifier circuit, switch drive circuit output drive, switch tube switches on LED fluorescent tube and brightens when power control switch switches on the commercial power, and half-wave rectifier circuit charges to rechargeable battery, and switch drive circuit output drive the switch tube switches on LED fluorescent tube and brightens when the commercial power cuts off or when will two access terminal short circuits, and rechargeable battery's positive pole makes switch drive circuit output drive the switch tube switches on LED fluorescent tube and brightens through current-limiting resistance.
The scheme is further as follows: and when the mains supply is powered off or the two access terminals are in short circuit, the positive electrode of the rechargeable battery drives the switch driving circuit to output power to drive the switch tube to conduct the LED lamp tube to light through the blocking diode and the current limiting resistor.
The scheme is further as follows: the switch tube is a triode transistor or a field effect transistor.
The scheme is further as follows: the voltage reducer is a voltage regulator diode.
The scheme is further as follows: a manual switch is arranged between the LED lamp tube and the switch tube, and after the commercial power is switched on, the manual switch is switched on, and at the moment, only the rechargeable battery is charged, so that the LED lamp tube is not bright.
The utility model has the advantages that: the rechargeable battery and the automatic switching circuit are utilized, the rechargeable battery can be automatically switched to be supplied with power by the battery when power is cut off, the lamp can provide continuous illumination, and the rechargeable battery can also be charged to be used as temporary illumination when the rechargeable battery is far away from a power supply or directly held by a hand to be used as a flashlight.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention;
FIG. 2 is a schematic diagram of the circuit improvement of the present invention;
fig. 3 is a schematic diagram of a circuit using a voltage regulator tube as a voltage reducer.
Detailed Description
An uninterruptible power supply lamp comprises an LED lamp tube 7, the LED lamp tube is fixed on a support in a lamp shell, the lamp shell can be a lamp cap, such as a square or cylindrical energy-saving lamp cap sold in the market at present, the support can be a circuit board arranged in the lamp cap, an uninterruptible power supply lamp circuit structure is shown in figure 1, the lamp shell is provided with a power interface, the power interface is provided with two access terminals 1 as shown in figure 1, the two access terminals L and N are used for being connected with a mains supply 3 (alternating current 220V) through a power switch 2, a power automatic switching circuit is arranged in the lamp shell and provides an uninterruptible power supply for the LED lamp tube 7, the power automatic switching circuit comprises a half-wave rectifying circuit 4 as shown in figure 1, the negative output of a rectifying diode D1 of the half-wave rectifying circuit is a direct current output positive pole, the direct current output is connected with a filter capacitor C1, two AC input ends of the half-wave rectification circuit are connected with one of two access terminals L and N of the power interface, and one access terminal L is connected with the anode of the half-wave rectification diode, and the other access terminal N of the two access terminals is connected with the DC cathode output of the half-wave rectification circuit through a reverse diode D2, namely: the negative pole of the backward diode D2 is connected with another access terminal N, the positive pole of the backward diode D2 is the direct current negative pole output of the half-wave rectification circuit, the direct current output of the half-wave rectification circuit is connected with a charging battery 6 after being reduced by a voltage stabilizing and reducing device 5, the voltage stabilizing and reducing device reduces the voltage to below 5V, the positive pole of the charging battery is connected with the another access terminal N through a current limiting resistor 8, the LED lamp tube 7 is connected with a switch tube 9 in series and then connected with the charging battery 6 in parallel, the charging battery 6 is connected with a 1 ohm current limiting resistor or a safety resistor R1 in series, the LED lamp tube 7 is also connected with a current limiting resistor R2 in series, the control pole of the switch tube 9 is connected with a switch driving circuit 10, when the power control switch is connected with the commercial power, the half-wave rectification circuit charges the charging battery, the output of the switch driving circuit to, when the power control switch disconnects the mains supply, the switch driving circuit outputs and disconnects the switch tube LED lamp tube to be extinguished, and when the mains supply is powered off (the power switch 2 is still in a connected state, and at the moment, a transformer at the mains supply end forms a loop) or two access terminals are in short circuit (equivalently, the lamp holder is taken down to be used as a flashlight), the anode of the rechargeable battery prompts the switch driving circuit to output and drive the switch tube to conduct the LED lamp tube to be lightened through the current-limiting resistor.
When the switching tube 9 adopts a transistor three-stage amplifying tube, the collector and emitter of the transistor three-stage amplifying tube are connected in series with the LED lamp tube 7, the switch driving circuit is shown in fig. 1 and comprises a driving triode Q2, the base of the driving triode is connected with the positive electrode of the half-wave rectification direct current output through a resistor R3, the collector of the driving triode is connected with the positive electrode of the rechargeable battery 6 through a resistor R4, and the emitter of the driving triode is connected with the base of the transistor three-stage amplifying tube to realize the driving output and the cut-off output.
In order to protect the rechargeable battery and make it safer, as shown in fig. 2, a blocking diode D3 is disposed between the current limiting resistor 8 and the positive electrode of the rechargeable battery 8, the positive electrode of the rechargeable battery is connected to the positive electrode of the blocking diode, the negative electrode of the blocking diode is connected to lock the current limiting resistor, and when the mains supply fails or the two access terminals are short-circuited, the positive electrode of the rechargeable battery drives the switch driving circuit to output a signal to drive the switch tube to turn on the LED lamp tube.
In the examples: the voltage stabilizing step-down transformer 5 may use a voltage stabilizing integrated circuit chip, such as W7805, or may use a voltage stabilizing tube, and when the voltage stabilizing tube is used, the circuit thereof is as shown in fig. 3, and a current limiting resistor R5 and a diode D4 are connected in series between the positive output of the half-wave rectification circuit 4 and the rechargeable battery 6. The output of the positive pole of the half-wave rectification circuit 4 is connected with one end of a current-limiting resistor R5, the other end of the current-limiting resistor R5 is connected with the positive pole of a diode D4, the negative pole of a diode D4 is connected with the positive pole of a rechargeable battery 6, a voltage stabilizing tube DW is bridged at two ends of the rechargeable battery 6, a base resistor R3 of a driving triode Q2 of the switch driving circuit is connected between a current-limiting resistor R5 and the positive pole of a diode D4, when the diode D4 prevents a power switch 2 from being disconnected, the rechargeable battery 6 is blocked from driving the triode Q2, an output driving switch tube 9 is turned on, the LED lamp tube 7 is continuously lightened and is not turned off, and the value of the current-limiting resistor R5.
In order to control the charging-only LED lamp tube not to be lighted, as shown in fig. 3, a manual switch S is arranged between the LED lamp tube 7 and a switch tube 9, and after the mains supply is switched on, the manual switch S is turned on, and at this time, only the charging battery 6 is charged, and the LED lamp tube 7 is not lighted.
Of course: the switching tube may be a field effect switching tube instead of a triode transistor, and when the field effect switching tube is used, the switching driving circuit is modified appropriately, which are well known in the art.
Claims (5)
1. An uninterrupted power supply lamp comprises an LED lamp tube fixed on a support in a lamp shell, the lamp shell is provided with a power interface, the power interface is provided with two access terminals which are used for being connected with commercial power through a power switch, a power automatic switching circuit is arranged in the lamp shell and provides uninterrupted power for the LED lamp, the uninterrupted power supply lamp is characterized in that the power automatic switching circuit comprises a half-wave rectification circuit, two alternating current input ends of the half-wave rectification circuit are connected with the two access terminals of the power interface, one access terminal of the two access terminals is connected with a rectification diode of the half-wave rectification circuit, the other access terminal is connected with a direct current cathode output of the half-wave rectification circuit through a reverse diode, the direct current output of the half-wave rectification circuit is connected with a rechargeable battery after being stepped down by a step-down device, and the positive pole of the rechargeable battery is connected with the other, the utility model discloses a switch tube LED lamp tube, including LED fluorescent tube, switch tube, rechargeable battery, switch drive circuit, switch tube, half-wave rectifier circuit, switch drive circuit output drive, switch tube switches on LED fluorescent tube and brightens when power control switch switches on the commercial power, and half-wave rectifier circuit charges to rechargeable battery, and switch drive circuit output drive the switch tube switches on LED fluorescent tube and brightens when the commercial power cuts off or when will two access terminal short circuits, and rechargeable battery's positive pole makes switch drive circuit output drive the switch tube switches on LED fluorescent tube and brightens through current-limiting resistance.
2. The lamp of claim 1, wherein a blocking diode is disposed between the current limiting resistor and the positive terminal of the rechargeable battery, the positive terminal of the rechargeable battery is connected to the positive terminal of the blocking diode, the negative terminal of the blocking diode is connected to lock the current limiting resistor, and when the commercial power fails or the two access terminals are short-circuited, the positive terminal of the rechargeable battery drives the switch driving circuit to output a signal to drive the switch tube to turn on the LED tube via the blocking diode and the current limiting resistor.
3. The ups lamp of claim 1, wherein the switching transistor is a triode or fet.
4. The uninterruptible power supply lamp of claim 1, wherein the voltage dropper is a zener diode.
5. The uninterruptible power supply lamp according to claim 1, wherein a manual switch is provided between the LED lamp tube and the switch tube, and when the commercial power is turned on, the manual switch is turned on, and only the rechargeable battery is charged, and the LED lamp tube is not lit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724654.3U CN210372956U (en) | 2019-10-15 | 2019-10-15 | Uninterruptible power supply lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724654.3U CN210372956U (en) | 2019-10-15 | 2019-10-15 | Uninterruptible power supply lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372956U true CN210372956U (en) | 2020-04-21 |
Family
ID=70256341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921724654.3U Expired - Fee Related CN210372956U (en) | 2019-10-15 | 2019-10-15 | Uninterruptible power supply lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372956U (en) |
-
2019
- 2019-10-15 CN CN201921724654.3U patent/CN210372956U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 Termination date: 20201015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |