CN207880662U - A kind of reading desk lamp of wireless power transmission - Google Patents
A kind of reading desk lamp of wireless power transmission Download PDFInfo
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- CN207880662U CN207880662U CN201820074494.1U CN201820074494U CN207880662U CN 207880662 U CN207880662 U CN 207880662U CN 201820074494 U CN201820074494 U CN 201820074494U CN 207880662 U CN207880662 U CN 207880662U
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- lamp
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- wireless power
- led light
- power transmission
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Abstract
The utility model discloses a kind of reading desk lamp of wireless power transmission, including lamp holder, lamp cap, it is equipped with LED light in the lamp cap, the lamp cap is connect by arm with the lamp holder, and transmission circuit is equipped in the lamp holder, is equipped in the lamp cap and receives circuit.Electromagnetic wave is sent using transmission circuit, then receives the electromagnetic wave using reception circuit, to generate induced voltage, the reading desk lamp of the induced voltage lightening LED lamp, the structure provides electric energy by wireless power transmission technology to LED light, avoids the gob-struck of power supply cabling.The desk lamp of the structure can be used for daily life.
Description
Technical field
The utility model is related to field of illumination lamp technology, more particularly to a kind of desk lamp.
Background technology
Existing desk lamp includes lamp holder, lamp cap, and LED light is equipped in the lamp cap, in order to read conveniently, existing lamp cap with
Elongated arm is equipped between lamp holder, the lamp holder is equipped with power supply, and the power supply is connected by conducting wire and LED light
Connect, since arm is elongated, existing conducting wire be generally it is exposed outside, very unsightly, moreover, if being opened in arm
If metallic channel is then easily damaged arm.
Utility model content
The utility model solve the technical issues of be：The LED light power supply of existing reading desk lamp is inconvenient.
The solution that the utility model solves its technical problem is：A kind of reading desk lamp of wireless power transmission, including lamp holder,
Lamp cap, the lamp cap is interior to be equipped with LED light, and the lamp cap is connect by arm with the lamp holder, and it is electric that transmission is equipped in the lamp holder
Road, the transmission circuit include：Oscillation signal generator and tuned power amplifier, the tuned power amplifier include：The
One oscillator coil L1, the first oscillating capacitance c1, switching tube VT, the first oscillating capacitance c1 and the first oscillator coil L1 are simultaneously
It connects, the first oscillating capacitance c1 and the first oscillator coil L1 are simultaneously concatenated after connecing, the switching tube with the switching tube VT
The control terminal of VT is connect with the output end of the oscillation signal generator, is equipped in the lamp cap and is received circuit, described to be received back
Road includes：Second oscillator coil L2, the second oscillating capacitance c4, current rectifying and wave filtering circuit, the second oscillator coil L2 and described the
Two oscillating capacitance c4 simultaneously connect, and the second oscillator coil L2 is connect with the input terminal of the current rectifying and wave filtering circuit, the rectification filter
The output end of wave circuit is connect with the LED light.
Further, the LED light and voltage-stabiliser tube d is met.
Further, the switching tube VT is high power tube TRF840.
Further, the lamp holder is additionally provided with the ultrasonic distance for adjusting the LED light brightness according to distance and senses
Device, the ultrasonic distance sensor include：Ultrasonic activation piece, receiver, control circuit, the control circuit respectively with institute
Ultrasonic activation piece, receiver, LED light connection are stated, the ultrasonic activation piece, receiver are embedded on arm.
Further, the control circuit is equipped with the monolithic for controlling the ultrasonic activation piece, receiver and LED light
Machine.
Further, the radiating circuit of the control circuit includes：The multivibrator being made of NE555, the multi-resonant
Device is swung to connect with the ultrasonic activation piece (11) by class AB power amplification circuit.
Further, the receiving circuit of the control circuit includes chip CX20106A.
The utility model has the beneficial effects that：Control signal is sent out by oscillation signal generator, which passes through control
Make the switching tube VT so that resonance occurs for tuned power amplifier, and generates alternate electromagnetic field, the alternate electromagnetic field effect
On being received back road, the second oscillator coil L2 for receiving circuit and the second oscillating capacitance c4 generate resonance, so that the
The both ends of two oscillator coil L2 generate induced voltage, the induced voltage by being acted in LED light after current rectifying and wave filtering circuit, to
The reading desk lamp of lightening LED lamp, the structure provides electric energy by wireless power transmission technology to LED light, avoids the embarrassed of power supply cabling
It is tired.The desk lamp of the structure can be used for daily life.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the structural schematic diagram of the reading desk lamp of the invention；
Fig. 2 is transmission circuit and receives the circuit connection diagram in circuit；
Fig. 3 is the circuit connection block diagram of touch-control structure；
Fig. 4 is the circuit connection diagram of radiating circuit；
Fig. 5 is the circuit connection diagram of receiving circuit.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Embodiment 1, with reference to figure 1 and Fig. 2, a kind of reading desk lamp of wireless power transmission, including lamp holder 3, lamp cap 1, the lamp cap 1
Interior to be equipped with LED light 2, the lamp cap 1 is connect by arm 21 with the lamp holder 3, and transmission circuit is equipped in the lamp holder 3, described
Transmission circuit includes：Oscillation signal generator 31 and tuned power amplifier 32, the tuned power amplifier 32 include：The
One oscillator coil L1, the first oscillating capacitance c1, switching tube VT, the first oscillating capacitance c1 and the first oscillator coil L1 are simultaneously
It connects, the first oscillating capacitance c1 and the first oscillator coil L1 simultaneously connect rear one end and connect with power supply, and the other end is opened with described
The drain electrode connection of pipe VT is closed, the source electrode of the switching tube VT connects over the ground.
The oscillation signal generator 31 includes：NE555 chips, resistance r1, r2, capacitance c2, c3, the NE555 chips
The 4th pin MR be separately connected one end of the 8th pin VCC of the NE555 chips, resistance r1, the resistance r1's is another
End is separately connected one end of the 7th pin DIS of the NE555 chips, resistance r2, and the other end of the resistance r2 is separately connected
One end of 6th pin TH of the NE555 chips, the second pin TR of the NE555 chips, the capacitance c3, the capacitance
The other end of c3 connects over the ground, and the 5th pin Vc of the NE555 chips is connected over the ground by the capacitance c2, the NE555
8th pin of chip meets power supply, the first pin GND ground connection of the NE555 chips, the third pin Vo of the NE555 chips
It is separately connected one end of resistance r3, the grid of the switching tube VT, the other end of the resistance r3 connects over the ground.
The reception circuit 33 includes：Second oscillator coil L2, the second oscillating capacitance c4, current rectifying and wave filtering circuit, described
Two oscillator coil L2 and the second oscillating capacitance c4 simultaneously connects, and the second oscillator coil L2 is defeated with the current rectifying and wave filtering circuit
Enter end connection, the output end of the current rectifying and wave filtering circuit is connect with the LED light 2, and the LED light 2 simultaneously meets voltage-stabiliser tube d.
In actual operation, the oscillation signal generator 31 being made of NE555 chips sends out control signal, the control signal
By controlling the switching tube VT so that resonance occurs for tuned power amplifier 32, and generates alternate electromagnetic field, this is alternate
On receiving circuit 33, the second oscillator coil L2 for receiving circuit 33 and the second oscillating capacitance c4 are generated electromagnetic field effect
Resonance, so that the both ends of the second oscillator coil L2 generate induced voltage, the induced voltage after current rectifying and wave filtering circuit by making
With in LED light 2, to lightening LED lamp 2, the reading desk lamp of the structure provides electric energy by wireless power transmission technology to LED light 2,
Avoid the gob-struck of power supply cabling.The desk lamp of the structure can be used for daily life.
As an optimization, the switching tube VT is high power tube TRF840.
With reference to figure 3, as an optimization, the lamp holder 3 is additionally provided with for adjusting the super of 2 brightness of the LED light according to distance
Sound wave range sensor, the ultrasonic distance sensor by：Ultrasonic activation piece 11, receiver 12, control circuit 13, it is described
Control circuit 13 is made of radiating circuit, receiving circuit, microcontroller, PWM light adjusting circuits, and the radiating circuit is by multivibrator
111 and class AB power amplification circuit 112 constitute.The ultrasonic activation piece 11, receiver 12 are embedded on arm 21.
In conjunction with Fig. 4, the multivibrator 111 includes：NE555 timers U1, first resistor R1, second resistance R2,
The upper end of one capacitance C1, the second resistance R2 connects the 8th pin of the NE555 timers U1, the second resistance R2's
Lower end is separately connected the upper end of the 7th pin of the NE555 timers U1, first resistor R1, the lower end of the first resistor R1
It is separately connected the second, the 6th pin of the NE555 timers U1, the anode of the first capacitance C1, the first capacitance C1's is negative
Pole connects over the ground, and the first pin of the NE555 timers U1 connects over the ground, and the 4th pin of the NE555 timers U1 connects
Node EN is met, the class AB power amplification circuit 112 includes：Third, the 4th resistance R3, R4, the first, second, third power
Triode VT1, VT2, VT3, the first diode D1, the emitter of the pliotron VT1 are upper with the 4th resistance R4's
End connection, the lower end of the 4th resistance R4 are connect with the collector of the third pliotron VT3, first power three
The collector of pole pipe VT1 is connect with the base stage of the cathode of the first diode D1, the third pliotron VT3 respectively,
The anode of the first diode D1 distinguishes the base stage connection of the upper end of the 3rd resistor R3, the second pliotron VT2, institute
The lower end for stating 3rd resistor R3 is connect with the collector of the second pliotron VT2, the second pliotron VT2's
Emitter is connect with the upper end of the emitter of the third pliotron VT3, the ultrasonic activation piece 11 respectively, described super
The lower end of acoustic vibration piece 11 connects over the ground, and the base stage of the first pliotron VT1 is with the NE555 timers U1's
Third pin connects.
By adjusting the parameter of first, second resistance R1, R2, the first capacitance C1, it can make the NE555 timers U1
Third pin output 40kHz square-wave signal, which is put by the power of the class AB power amplification circuit 112
The ultrasonic activation piece 11 is driven after big so that ultrasonic activation piece 11 sends out the ultrasonic wave of 40kHz.
In conjunction with Fig. 5, the receiving circuit includes chip CX20106A, the signal input part IN of the chip CX20106A
It is connect with the upper end of the receiver 12, the lower end of the receiver 12 connects over the ground, and the signal of the chip CX20106A is defeated
Outlet is connect with node OUT-INT.
Above-mentioned node EN, OUT-INT are connect with the GPIO of microcontroller mouths.The microcontroller by PWM light adjusting circuits with
The LED light 2 connects, and ultrasonic ranging algorithm is configured in the microcontroller, when microcontroller controls the NE555 by node EN
The 4th pin of timer U1 can control the square wave whether multivibrator 111 sends out 40kHz by low and high level,
Then whether control ultrasonic activation piece 11 sends out ultrasonic wave, and one at a time sent out when ultrasonic activation piece 11 is super
Acoustic signals are returned when ultrasonic wave encounters testee back reflection, are just received by receiver 12.As long as calculating generation in this way
Signal is to the time received used in return signal, so that it may calculate arm 21 at a distance from testee.
Distance calculation formula：D=s/2=(c*t)/2
D is measured object with arm 21 at a distance from, and s is the distance back and forth of sound wave, and c is the velocity of sound, t be sound wave back and forth used in
Time.Microcontroller exports PWM wave by measured object and 21 distance d of arm, and the PWM wave is by PWM light adjusting circuits to LED light 2
Brightness dimmed.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (7)
1. a kind of reading desk lamp of wireless power transmission, including lamp holder (3), lamp cap (1), the lamp cap (1) is interior to be equipped with LED light (2), institute
Lamp cap (1) is stated to connect with the lamp holder (3) by arm (21), which is characterized in that transmission circuit is equipped in the lamp holder (3),
The transmission circuit includes：Oscillation signal generator (31) and tuned power amplifier (32), the tuned power amplifier
(32) include：First oscillator coil L1, the first oscillating capacitance c1, switching tube VT, the first oscillating capacitance c1 and described first
Oscillator coil L1 simultaneously connects, and the first oscillating capacitance c1 and the first oscillator coil L1 simultaneously connects rear and switching tube VT strings
It connects, the control terminal of the switching tube VT is connect with the output end of the oscillation signal generator (31), is equipped in the lamp cap (1)
Circuit is received, the reception circuit includes：Second oscillator coil L2, the second oscillating capacitance c4, current rectifying and wave filtering circuit, described second
Oscillator coil L2 and the second oscillating capacitance c4 simultaneously connects, the input of the second oscillator coil L2 and the current rectifying and wave filtering circuit
End connection, the output end of the current rectifying and wave filtering circuit are connect with the LED light (2).
2. a kind of reading desk lamp of wireless power transmission according to claim 1, it is characterised in that：The LED light (2) simultaneously connects steady
Pressure pipe d.
3. a kind of reading desk lamp of wireless power transmission according to claim 1, it is characterised in that：The switching tube VT is big work(
Rate pipe TRF840.
4. according to a kind of reading desk lamp of wireless power transmission of claim 1-3 any one of them, it is characterised in that：The lamp holder
(3) ultrasonic distance sensor for adjusting the LED light (2) brightness according to distance, the ultrasonic distance are additionally provided with
Sensor includes：Ultrasonic activation piece (11), receiver (12), control circuit (13), the control circuit (13) respectively with institute
Ultrasonic activation piece (11), receiver (12), LED light (2) connection are stated, the ultrasonic activation piece (11), receiver (12) are equal
It is embedded on arm (21).
5. a kind of reading desk lamp of wireless power transmission according to claim 4, it is characterised in that：The control circuit (13) sets
Be useful for controlling the ultrasonic activation piece (11), receiver (12) and LED light (2) microcontroller.
6. a kind of reading desk lamp of wireless power transmission according to claim 5, it is characterised in that：The control circuit (13)
Radiating circuit includes：The multivibrator (111) being made of NE555, the multivibrator (111) are put by class AB power
Big circuit (112) is connect with the ultrasonic activation piece (11).
7. a kind of reading desk lamp of wireless power transmission according to claim 6, it is characterised in that：The control circuit (13)
Receiving circuit includes chip CX20106A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074494.1U CN207880662U (en) | 2018-01-16 | 2018-01-16 | A kind of reading desk lamp of wireless power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074494.1U CN207880662U (en) | 2018-01-16 | 2018-01-16 | A kind of reading desk lamp of wireless power transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880662U true CN207880662U (en) | 2018-09-18 |
Family
ID=63507117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074494.1U Active CN207880662U (en) | 2018-01-16 | 2018-01-16 | A kind of reading desk lamp of wireless power transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207880662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131625A (en) * | 2018-01-16 | 2018-06-08 | 广东科立盈光电技术有限公司 | A kind of reading desk lamp of wireless power transmission |
-
2018
- 2018-01-16 CN CN201820074494.1U patent/CN207880662U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131625A (en) * | 2018-01-16 | 2018-06-08 | 广东科立盈光电技术有限公司 | A kind of reading desk lamp of wireless power transmission |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190723 Address after: 528000 Lisheng Photoelectric Co., Ltd. Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan City LUX Electrical & Lighting Co., Ltd. Address before: 528200 Hantian Science and Technology City, 17 Guicheng Deep Sea Road, Nanhai District, Foshan City, Guangdong Province Patentee before: Guangdong Keliying Photoelectric Technology Co., Ltd. |