CN202551420U - Energy saving lamp illuminable after powering off power grid - Google Patents
Energy saving lamp illuminable after powering off power grid Download PDFInfo
- Publication number
- CN202551420U CN202551420U CN 201220059659 CN201220059659U CN202551420U CN 202551420 U CN202551420 U CN 202551420U CN 201220059659 CN201220059659 CN 201220059659 CN 201220059659 U CN201220059659 U CN 201220059659U CN 202551420 U CN202551420 U CN 202551420U
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- CN
- China
- Prior art keywords
- lamp
- circuit
- light
- power grid
- saving lamp
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to an energy saving lamp illuminable after powering off the power grid, comprising a thread lamp holder, a lamp housing, a lampshade, a circuit board, a light emitting component and a battery, etc. The energy saving lamp is illuminable after powering off the power grid. Inside the energy saving lamp there are provided a power supply management and detection circuit, and when a voltage exists in the power grid, a switch is closed, the utility power is used for providing a voltage to the light emitting component through a voltage step-down rectification circuit, and the lamp emits light. When the power grid is powered off, the switch is closed, the power supply management and detection circuit can detect the equivalent impedance of other electric appliances in the power grid, the battery in the energy saving lamp is switched on to provide electric power for the light emitting component, such that after the power grid is powered off, the energy saving lamp can illuminate for users for a certain time.
Description
Technical field
The utility model relates to a kind of energy-saving lamp, especially a kind of energy-saving lamp that behind grid cut-off, can be user's illumination.
Background technology
Behind grid cut-off, common lighting just can not throw light on for the user, though emergency light has function of emergency illumination, can not use as the domestic lighting light fixture, and the user more can not control emergency light as controlling ordinary lamp and lantern.So mostly utilize inversion transformation technique to supply power for illuminator after electrical network cuts off the power supply at present, cost is high, complicated circuit, average family is difficult to accept.
Summary of the invention
The purpose of the utility model is to avoid the ordinary lamp and lantern outage can not throw light on and the shortcoming that inversion transformation technique is complicated, cost is high, and a kind of throw light on energy-saving lamp of a period of time of user that when the electrical network generation loss of power accident, can be is provided.
The purpose of the utility model reaches through following measure: this light fixture comprises screwed socket, lamp housing, lampshade, circuit board, light-emitting component, battery etc.Circuit board is fixed in the lamp housing, is characterised in that: circuit board and battery connect together, and under the prerequisite that does not change power network line, the close switch lamp luminescence also charged the battery simultaneously when electrical network had voltage, and electrical network outage back close switch takes place still can be user's illumination.
Comprise step-down rectifying circuit, electric power management circuit, current stabilization circuit on the circuit board, power management and testing circuit, two test sides of power management and testing circuit and two inputs of step-down rectifying circuit are connected together.
Among the design, owing to connecting a lot of electrical equipment in the electrical network, these electrical equipment just can equivalence become an impedance to be connected between zero line and the live wire, this impedance by light fixture as detected object.If in the electrical network voltage is arranged: behind the switch closure; Civil power provides required voltage through step-down rectifying circuit to light-emitting component; Lamp is luminous, and electric power management circuit and testing circuit detect the output voltage of line voltage or step-down rectifying circuit, and all can open charge circuit is battery charge; Battery is full of the back and breaks off charge circuit, to reach the purpose of protection battery.After switch broke off, electric power management circuit had not only detected less than the output voltage of line voltage and step-down rectifying circuit but also had detected less than the impedance in the electrical network, and lamp extinguishes.If electrical network cuts off the power supply: behind the switch closure; Though step-down rectifying circuit can not provide voltage for light-emitting component; But electric power management circuit and testing circuit detect the existence of electric network impedance; Electrical network cuts off the power supply so but judges has been opened switch, and connecting internal cell is the light-emitting component power supply, and lamp is luminous.After switch broke off, electric power management circuit detected less than external impedance, so but judges has been broken off switch, the breaking inner battery, and lamp extinguishes.
The design's beneficial effect is: the illuminating effect that can realize ordinary lamp and lantern; Behind electrical network generation power outage; Still can be the user threw light on several hours; After having a power failure, limitation and the ordinary lamp and lantern that has overcome emergency light can not can extensively replace incandescent lamp, fluorescent lamp, emergency light for the shortcoming of user's illumination.
Description of drawings
Fig. 1 cuts open figure for the structure master office of looking of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
With reference to Fig. 1 the present invention is further described.This energy-saving lamp comprises screwed socket 1, lamp housing 2, lampshade 3, circuit board 4, battery 5, light-emitting component 6 compositions.Screwed socket 1 has two wires to be connected with circuit board 4, and circuit board 4 is fixed in the lamp housing 2, and light-emitting component 6 is fixed on the below of lamp housing 2, and battery 5 is fixed in the space that light-emitting component 6 surrounds, and lampshade 3 covers light-emitting component 6 and battery 5.
Fig. 2 is this lamp circuit schematic diagram, comprises step-down rectifying circuit 7, power management and testing circuit 8, current stabilization circuit 9 on the circuit board, light-emitting component 6.The positive pole of battery 10 links to each other with the output d of electric power management circuit 9; The test side a of power management and testing circuit 8, b are connected with two input in1, in2 of step-down rectifying circuit 7 respectively, and input e is connected with the positive output end o+ of step-down rectifying circuit 7; The input in of current stabilization circuit 9 meets the positive output end o+ of step-down rectifying circuit 7, the positive pole of output out sending and receiving optical element 6; The negative pole of the earth terminal e of the negative output terminal o-of step-down rectifying circuit 7, power management and testing circuit 8, the earth terminal GND of current stabilization circuit 9, light-emitting component 6, the negative pole of battery 10 link together and ground connection.
Circuit in the frame of broken lines 11 is the electrical network equivalent electric circuit, and S is a lamp switch, and U is a transformer, and FU is a protective tube, and Z (0≤Z≤h, h are the maximum impedance values that electric power management circuit can identify) is the equiva lent impedance of all electrical appliances in the electrical network.The said screwed socket of Fig. 1 has two terminals, representes with A, B.
Operation principle of the present invention is following:
If transformer U has voltage, as close switch S, civil power is through step-down rectifying circuit 7 step-downs; Voltage is provided for light-emitting component 6 through current stabilization circuit 9; Lamp is luminous, and line voltage or step-down rectifying circuit output o+ that while electric power management circuit 8 detects A, B two ends have voltage, and connecting battery 10 is its charging; Battery is full of the back and breaks off battery, to reach the purpose of protection battery.Break off when switch S, step-down rectifying circuit 7 can not be for light-emitting component provides voltage, and power management and testing circuit 8 detect less than line voltage and impedance Z, close battery circuit, light-emitting component two ends no-voltage, and lamp extinguishes.
If transformer U no-voltage; Owing to connecting a lot of electrical equipment in the electrical network, these electrical equipment just can become an impedance Z to be connected between zero line and the live wire with the transformers connected in parallel equivalence, when the switch S closure; Though step-down rectifying circuit 7 can not provide voltage for light-emitting component 6; But power management and testing circuit 8 detect the existence of impedance Z, so but judges opened switch S but had a power failure in the electrical network, just connect internal cell and be light-emitting component 6 power supplies; Lamp is luminous, and this power management and testing circuit had the protection of putting.When the switch S disconnection, electric power management circuit and testing circuit 8 detect less than line voltage and impedance Z, so but judges has been broken off switch S, just break off battery 10, and lamp extinguishes.
Claims (2)
1. the energy-saving lamp that still can throw light on behind the grid cut-off, when electrical network had voltage, the user can pass through the light on and off of controlling switch lamp tool; The user still can pass through the light on and off of controlling switch lamp tool behind the grid cut-off; It is characterized in that having in the lamp power management and testing circuit and battery, after user's close switch, power management and testing circuit can detect the impedance in the electrical network when outage takes place electrical network; Connecting battery then is the light-emitting component power supply, lamp luminescence.
2. energy-saving lamp as claimed in claim 1 is characterized in that: said power management and testing circuit overcharge and cross battery puts protection, but and the equiva lent impedance in detection of grid voltage and the electrical network.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220059659 CN202551420U (en) | 2012-02-23 | 2012-02-23 | Energy saving lamp illuminable after powering off power grid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220059659 CN202551420U (en) | 2012-02-23 | 2012-02-23 | Energy saving lamp illuminable after powering off power grid |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202551420U true CN202551420U (en) | 2012-11-21 |
Family
ID=47171974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220059659 Expired - Fee Related CN202551420U (en) | 2012-02-23 | 2012-02-23 | Energy saving lamp illuminable after powering off power grid |
Country Status (1)
Country | Link |
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CN (1) | CN202551420U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113644729A (en) * | 2021-07-19 | 2021-11-12 | 浙江天宏锂电股份有限公司 | Integrated emergency power supply for lamp |
-
2012
- 2012-02-23 CN CN 201220059659 patent/CN202551420U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113644729A (en) * | 2021-07-19 | 2021-11-12 | 浙江天宏锂电股份有限公司 | Integrated emergency power supply for lamp |
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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: 20130223 |