CN215121274U - Double-live-wire lamp - Google Patents
Double-live-wire lamp Download PDFInfo
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- CN215121274U CN215121274U CN202120823011.5U CN202120823011U CN215121274U CN 215121274 U CN215121274 U CN 215121274U CN 202120823011 U CN202120823011 U CN 202120823011U CN 215121274 U CN215121274 U CN 215121274U
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Abstract
The application discloses two live wire lamps and lanterns, through setting up two live wire input power, input rectifier circuit, surge absorption circuit, lighting circuit and drive circuit, lighting circuit includes a plurality of light source devices and a plurality of first resistance. Can make drive circuit and lighting circuit normal work through setting up rectifier circuit and surge absorption circuit, do not influence the life of light source device among the lighting circuit, after two live wire input power disconnection (when breaking one live wire in two live wires promptly), parallelly connected first resistance on the light source device, play the electric current and release fast, make the light source device be in the state of extinguishing when the input power disconnection, the illuminating effect who lets the user obtain when using two live wire lamps and lanterns is better, the good experience of reinforcing customer is felt.
Description
Technical Field
The utility model relates to a lamps and lanterns field, concretely relates to two live wire lamps and lanterns.
Background
The lamp is widely applied in various industries, new products of lighting are continuously emerged, and the high-tech application is mature, energy-saving, environment-friendly and good in effect. The lamp comprises: guardrail tubes, wall washing lamps, point light sources, projection lamps, lamp belts, underground lamps, underwater lamps, star lamps, luminous characters, floodlights and the like.
In the prior art, lamps are designed according to an input power supply of a single live wire, and along with the development of intelligent lamps, the control of the lamps also continuously becomes the focus of research and development design of enterprises. The control of the existing single-live-wire lamp is mature, and the use and illumination functions of the lamp such as turning on, turning off, dimming, color mixing and the like can be well realized through knob regulation, fingerprint regulation, voice control, remote control and the like. In most countries such as China and the United states, three power supply wires are respectively a zero wire, a live wire and a ground wire, and the live wire with voltage is generally only cut off when the power is cut off during the air switch. Three power supply wires in some special national regions such as philippines are live wires, live wires and ground wires, and the application of a double-live-wire input power supply cannot be met by the existing single-live-wire lamp control design, so that the following problems can be caused:
1. the service life of the light source device is influenced by the phenomena of inrush current, circuit interference and the like of the control circuit;
2. after one live wire is disconnected, the other live wire and the ground wire can generate leakage current, so that the light source device can be in a slightly bright state after the power failure, the using effect of the product is poor, and the experience of a customer is further influenced.
Therefore, it is desirable to provide a dual-fire wire lamp capable of preventing inrush current and circuit interference and preventing the light source device from being slightly bright when the input power is turned off.
SUMMERY OF THE UTILITY MODEL
To the technical problem that prior art exists, the utility model provides a two live wire lamps and lanterns to solve prior art problem.
The utility model provides a double-live wire lamp, including double-live wire input power supply, input rectifier circuit, surge absorption circuit, lighting circuit and drive circuit, double-live wire input power supply connects input rectifier circuit's input, input rectifier circuit's output is connected to surge absorption circuit's input, surge absorption circuit's output connects to drive circuit and lighting circuit respectively, and then drive circuit connects lighting circuit, lighting circuit includes a plurality of light source devices and a plurality of first resistance, be connected to drive circuit after a plurality of light source devices interconnect, wherein, every light source device is parallelly connected respectively has a first resistance to cause the light source device to be in the state of shining a little with the electric leakage that produces after avoiding double-live wire input power supply disconnection.
By the technical scheme, the rectifying circuit and the surge absorption circuit can enable the driving circuit and the lighting circuit to work normally, and the service life of a light source device in the lighting circuit is not influenced. After the double-live-wire input power supply is disconnected (namely when one live wire in the double live wires is disconnected), the other live wire and the ground wire generate leakage current, the light source device is in a slightly-bright state when the leakage current flows through the light source device, the first resistor is connected to the light source device in parallel, the current is quickly released, and the light source device is in an off state when the input power supply is disconnected.
Further, the light source devices are LED light source devices, and each LED light source device is connected in parallel with a first resistor.
Furthermore, the value range of the first resistor is 1-200K omega, the double-live-wire input power supply is switched off after being switched on, and the first resistor plays a role in quickly discharging current after being switched off.
Further, input rectifier circuit includes thermistor, second resistance, piezo-resistor and rectifier bridge, and every live wire in the two live wire input power respectively establishes ties has thermistor and second resistance, and then the parallel connection has piezo-resistor behind the second resistance between the two live wire input power, and two live wire power are connected to the rectifier bridge behind the piezo-resistor.
Through setting up above-mentioned technical scheme, it can play the overheat protection effect to go into thermistor in series in the input, and parallelly connected piezo-resistor can play the overvoltage protection effect, and rectifier bridge is whole into the direct current with the alternating current of input power, provides input power for drive circuit and lighting circuit.
Furthermore, the surge absorption circuit comprises a first diode, a first capacitor and a third resistor, the input end of the rectifying circuit is connected with the input end of the first diode, the input end of the first diode is connected with the input end of the first capacitor, the output end of the first capacitor is connected with the output end of the rectifying circuit, and the third resistor is connected to the two ends of the first capacitor in parallel.
Through setting up above-mentioned technical scheme, a surge absorption circuit is constituteed to first diode, first electric capacity and third resistance, can absorb the surge or the anti lightning effect that the electric wire netting produced.
Furthermore, the surge absorption circuit also comprises a first high-frequency filter capacitor which is connected to two ends of the surge absorption circuit in parallel. The first high-frequency filter capacitor can play an anti-interference role in EMI.
Further, the driving circuit comprises a control chip, and a control end of the control chip is connected to the output end of the light source device to control the luminosity and the chromaticity of the light source device.
Further, the control chip is a control chip with model number RM9001 in Asian-Cheng-Mi corporation.
Furthermore, the driving circuit comprises a fourth resistor and a fifth resistor, the control chip of the driving circuit comprises a power compensation pin, the fourth resistor and the fifth resistor are connected in series and then connected in parallel to the control end and the grounding end of the control chip, and the power compensation pin is connected between the fourth resistor and the fifth resistor.
Through setting up above-mentioned technical scheme, fourth resistance and fifth resistance can be used for getting of the power compensation pin of control chip.
And the second high-frequency filter capacitor is connected to two ends of a series circuit formed by connecting the fourth resistor and the fifth resistor in parallel. The second high-frequency filter capacitor can be used for preventing the interference effect of the control chip on signal transmission.
It is right from the above-mentioned the utility model discloses a two live wire lamps and lanterns have following advantage: through setting up two live wire input power, input rectifier circuit, surge absorption circuit, lighting circuit and drive circuit, lighting circuit includes a plurality of light source device and a plurality of first resistance. The rectifying circuit and the surge absorption circuit can enable the driving circuit and the lighting circuit to work normally, and the service life of a light source device in the lighting circuit is not affected. After the double-live-wire input power supply is disconnected (namely, when one live wire in the double-live-wire is disconnected), the other live wire and the ground wire generate leakage current, the light source device is in a slightly-bright state when the leakage current flows through the light source device, the first resistor is connected to the light source device in parallel, the first resistor can play a role in quickly discharging the current, and the light source device is in an extinguishing state when the input power supply is disconnected.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.
FIG. 1 is a functional block diagram of one embodiment of a dual fire wire lamp;
FIG. 2 is a circuit schematic of an input rectification circuit of an embodiment of a dual hot line lamp;
FIG. 3 is a circuit schematic of a surge absorption circuit of an embodiment of a dual hot line lamp;
fig. 4 is a circuit schematic diagram of a lighting circuit and a driving circuit of an embodiment of a dual hot line lamp.
The meaning of each number in the figure: 100-double live wire input power supply; 200-input rectification circuit; 300-a surge absorption circuit; 400-a lighting circuit; 500-a driver circuit; 501-control chip; RF 1-thermistor; r1 — first resistance; r2, R3-second resistance; RV 1-piezo-resistor; DB 1-rectifier bridge; c1 — first capacitance; d1 — first diode; r4, R5-third resistor; c2 — a first high frequency filter capacitor; c3 — a second high frequency filter capacitor; CP-Power Compensation Pin; r6-fourth resistor; r7-fifth resistor.
Detailed Description
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.
The utility model provides a double-live wire lamp, as shown in figure 1, the utility model provides a double-live wire lamp, which comprises a double-live wire input power supply 100, an input rectification circuit 200, a surge absorption circuit 300, a lighting circuit 400 and a driving circuit 500, wherein the double-live wire input power supply 100 is connected with the input end of the input rectification circuit 200, the output end of the input rectification circuit 200 is connected with the input end of the surge absorption circuit 300, the output end of the surge absorption circuit 300 is respectively connected with the driving circuit 500 and the lighting circuit 400, the driving circuit 500 is further connected to the lighting circuit 400, the lighting circuit 400 includes a plurality of light source devices and a plurality of first resistors R1, the plurality of light source devices are interconnected and then connected to the driving circuit 500, each light source device is connected in parallel with a first resistor R1 to prevent the light source device from being in a slightly bright state due to electric leakage generated after the dual-live input power supply 100 is disconnected.
Preferably, the light source devices are LED light source devices, and each LED light source device is connected in parallel with a first resistor R1.
Preferably, the first resistor R1 has a value range of 1K Ω to 200K Ω, and the dual-live-wire input power supply 100 is turned off after being turned on, and the first resistor R1 plays a role in rapid current release after being turned off.
Theoretically, the smaller the resistance values of the sheet resistors at the two ends of the LED lamp bead, the better the current absorption effect, but also considering the limitations of power temperature rise and the like of sheet resistor loss during normal power-on, when the resistance value is as large as the internal resistance of the power supply, the load obtains the maximum power. But the power supply is used with low efficiency at this time, so that the appropriate resistance parameter is found through continuous adjustment and test.
In a specific embodiment, as shown in fig. 2, the input rectification circuit 200 includes a thermistor RF1, a second resistor R2, R3, a varistor RV1 and a rectification bridge DB1, each live wire in the dual-live wire input power supply 100 is respectively connected in series with the thermistor RF1 and the second resistors R2, R3, then the varistor RV1 is connected in parallel after the second resistors R2, R3 between the dual-live wire input power supplies 100, and the dual-live wire power supply is connected to the rectification bridge DB1 after passing through the varistor RV 1. The thermistor RF1 is connected in series in the input to play a role in overheat protection, the shunt voltage dependent resistor RV1 can play a role in overvoltage protection, and the rectifier bridge DB1 converts alternating current of an input power supply into direct current to provide the input power supply for the driving circuit 500 and the lighting circuit 400.
When the circuit works normally, the temperature of the thermistor RF1 is close to room temperature, the resistance is very small, and the thermistor RF1 can not block the current from passing through when being connected in series in the circuit of the double-live-wire lamp; when the circuit of the double-live-wire lamp has overcurrent due to faults, the temperature of the thermistor RF1 rises due to the increase of heating power, and when the temperature exceeds a certain temperature, the resistor suddenly increases instantly, and the current in the loop of the double-live-wire lamp is rapidly reduced to a safe value.
By utilizing the nonlinear characteristic of the voltage dependent resistor RV1, when an overvoltage appears between two poles of the voltage dependent resistor RV1, the voltage dependent resistor RV1 can clamp the voltage to a relatively fixed voltage value, so that the protection of the lighting circuit 400, the driving circuit 500 and other subsequent circuits is realized.
In a specific embodiment, as shown in fig. 3, the surge absorbing circuit 300 includes a first diode D1, a first capacitor C1, and third resistors R4 and R5, an input terminal of the rectifying circuit is connected to an input terminal of the first diode D1, an input terminal of the first diode D1 is connected to an input terminal of the first capacitor C1, an output terminal of the first capacitor C1 is connected to an output terminal of the rectifying circuit, and the third resistors R4 and R5 are connected in parallel to two ends of the first capacitor C1. A surge absorption circuit 300 is formed by arranging a first diode D1, a first capacitor C1 and third resistors R4 and R5, and can absorb the surge generated by a power grid or resist lightning.
Wherein, the C1 is used for inhibiting the influence of reverse peak voltage (surge voltage) on the diode to protect the diode from possible damage due to insufficient voltage resistance, and R4 and R5 are used for adjusting the voltage resistance value of the capacitor C1.
Wherein, D1 is TVS diode also called transient voltage suppression diode, under certain condition, when bearing higher instantaneous voltage pulse, its working impedance conduction value can be reduced to very low immediately, let through heavy current, and clamp the voltage to stable level, thus effectively protect components such as light source device or control core from being damaged.
In a specific embodiment, the surge absorption circuit further includes a first high-frequency filter capacitor C2, and the first high-frequency filter capacitor C2 is connected in parallel to two ends of the surge absorption circuit 300. The first high frequency filter capacitor C2 can provide EMI immunity.
In a specific embodiment, as shown in fig. 4, the driving circuit 500 includes a control chip 501, and a control terminal of the control chip 501 is connected to an output terminal of the light source device to control the luminosity and chromaticity of the light source device.
Preferably, the control chip 501 is a control chip 501 with model number RM9001 from minors corporation.
In a specific embodiment, the driving circuit 500 includes a fourth resistor R6 and a fifth resistor R7, the control chip 501 in the driving circuit 500 includes a power compensation pin CP, the fourth resistor R6 and the fifth resistor R7 are connected in series and then connected in parallel to a control terminal and a ground terminal of the control chip 501, and the power compensation pin CP is connected between the fourth resistor R6 and the fifth resistor R7. The fourth resistor R6 and the fifth resistor R7 can be used to control the power supply of the power compensation pin CP of the chip 501.
In a specific embodiment, the high-frequency filter circuit further comprises a second high-frequency filter capacitor C3, and the second high-frequency filter capacitor is connected in parallel to two ends of a series circuit formed by connecting the fourth resistor R6 and the fifth resistor R7. The second high-frequency filter capacitor C3 can be used to prevent interference of the control chip 501 with the signal transmission.
The specific working principle in the embodiment of the double-live-wire lamp is as follows:
through setting up above-mentioned technical scheme, rectifier circuit and surge absorption circuit 300 can make drive circuit 500 and lighting circuit 400 normally work, do not influence the life of light source device in lighting circuit 400, specifically for it can play the overheat protection effect to go into thermistor RF1 in the input in series, parallelly connected piezo-resistor RV1 can play the overvoltage protection effect, rectifier bridge DB1 is the direct current with the alternating current of input power is whole, provide input power for drive circuit 500 and lighting circuit 400. A surge absorption circuit 300 is formed by arranging a first diode D1, a first capacitor C1 and third resistors R4 and R5, and can absorb the surge generated by a power grid or resist lightning.
After the dual-live-wire input power supply 100 is disconnected (i.e., when one of the dual-live wires is disconnected), leakage current is generated between the other live wire and the ground wire, when the leakage current flows through the light source device, the light source device is in a slightly bright state, the first resistor R1 is connected to the light source device in parallel, and current is quickly released, so that the light source device is in an off state when the input power supply is disconnected. The design enables a user to obtain a better lighting effect when the user uses the double-live-wire lamp, and the good experience of the user is enhanced.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.
Claims (10)
1. The utility model provides a double-live wire lamps and lanterns, its characterized in that includes double-live wire input power, input rectifier circuit, surge absorption circuit, lighting circuit and drive circuit, double-live wire input power connects input rectifier circuit's input, input rectifier circuit's output is connected to surge absorption circuit's input, surge absorption circuit's output connects to respectively drive circuit with lighting circuit, and then drive circuit connects lighting circuit, lighting circuit includes a plurality of light source devices and a plurality of first resistance, be connected to after a plurality of light source devices interconnect drive circuit, wherein, every light source device has parallelly connected one respectively first resistance is in order to avoid the electric leakage that produces after double-live wire input power breaks off causes the light source device is in the little bright state.
2. The dual hot line lamp as claimed in claim 1, wherein the light source devices are LED light source devices, and each of the LED light source devices is connected in parallel with one of the first resistors.
3. The dual hot line lamp of claim 2, wherein the first resistor has a value in a range of 1K Ω to 200K Ω.
4. The dual hot wire lamp as claimed in claim 1, wherein the input rectification circuit comprises a thermistor, a second resistor, a voltage dependent resistor and a rectifier bridge, each hot wire of the dual hot wire input power source is respectively connected in series with the thermistor and the second resistor, then the voltage dependent resistor is connected in parallel between the dual hot wire input power sources after the second resistor, and the dual hot wire input power source is connected to the rectifier bridge after passing through the voltage dependent resistor.
5. The dual fire wire lamp as recited in claim 1, wherein the surge absorption circuit comprises a first diode, a first capacitor and a third resistor, an input terminal of the rectifier circuit is connected to an input terminal of the first diode, an input terminal of the first diode is connected to an input terminal of the first capacitor, an output terminal of the first capacitor is connected to an output terminal of the rectifier circuit, and the third resistor is connected in parallel to two ends of the first capacitor.
6. The dual fire line lamp of claim 5 further comprising a first high frequency filter capacitor connected in parallel across the surge absorption circuit.
7. The dual fire wire lamp as recited in claim 1, wherein the driving circuit comprises a control chip, a control terminal of the control chip is connected to the output terminal of the light source device to control the luminosity and chromaticity of the light source device.
8. The dual fire wire lamp as recited in claim 7, wherein the control chip is model number RM9001 control chip.
9. The dual hot wire lamp as claimed in claim 1, wherein the driving circuit further comprises a fourth resistor and a fifth resistor, the control chip in the driving circuit comprises a power compensation pin, the fourth resistor and the fifth resistor are connected in series and then connected to the control terminal and the ground terminal of the control chip, and the power compensation pin is connected between the fourth resistor and the fifth resistor.
10. The dual hot line lamp as claimed in claim 9, further comprising a second high frequency filter capacitor connected in parallel to the two ends of the series circuit formed by the fourth resistor and the fifth resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823011.5U CN215121274U (en) | 2021-04-21 | 2021-04-21 | Double-live-wire lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823011.5U CN215121274U (en) | 2021-04-21 | 2021-04-21 | Double-live-wire lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215121274U true CN215121274U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120823011.5U Active CN215121274U (en) | 2021-04-21 | 2021-04-21 | Double-live-wire lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215121274U (en) |
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2021
- 2021-04-21 CN CN202120823011.5U patent/CN215121274U/en active Active
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