CN209767690U - Energy-saving liquid crystal television - Google Patents
Energy-saving liquid crystal television Download PDFInfo
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- CN209767690U CN209767690U CN201920574534.3U CN201920574534U CN209767690U CN 209767690 U CN209767690 U CN 209767690U CN 201920574534 U CN201920574534 U CN 201920574534U CN 209767690 U CN209767690 U CN 209767690U
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- control switch
- switch
- multivibrator
- energy
- relay
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Abstract
The utility model discloses an energy-conserving liquid crystal TV, including the TV body, be equipped with on the TV body: the standby response module, the first electronic control switch, the multivibrator, the second electronic control switch, the human infrared detection module, the NOT gate chip and the third electronic control switch, the induction surface of the human infrared detection module faces the front of the liquid crystal television, the output end of the standby response module is connected with the first electronic control switch, the output end of the multivibrator is connected with the second electronic control switch, the output end of the human infrared detection module is connected with the third electronic control switch through the NOT gate chip, the first electronic control switch is used for controlling the power supply of the multivibrator, the second electronic control switch is used for controlling the power supply of the human infrared detection module, and the third electronic control switch is used for controlling the power supply of the television body. Through judging whether someone is in front of the television body, when nobody is in front of the television body, the power supply of the television body is cut off, and therefore electricity waste is avoided. The utility model discloses mainly used TV set technical field.
Description
Technical Field
The utility model relates to a TV technical field, in particular to energy-conserving LCD TV.
Background
In daily life, the standby power consumption of the household television is very large because people use the television to be careless for power failure. Usually, after people use the television, because people need to manually operate and close a power switch of the television box to cause inconvenience, people only close the television on a television remote controller, and at this time, the television is still in a standby state and still consumes resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-conserving LCD TV, can be intelligent cut off its self power, energy-concerving and environment-protective.
The utility model provides a solution of its technical problem is: an energy-saving liquid crystal television comprises a television body, wherein the television body is provided with: standby response module, first electric control switch, multivibrator, second electric control switch, human infrared detection module, NOT gate chip and third electric control switch, human infrared detection module's response face is towards the place ahead of LCD TV, standby response module's output and first electric control switch are connected, multivibrator's output and second electric control switch are connected, human infrared detection module's output passes through NOT gate chip and is connected with third electric control switch, first electric control switch is used for controlling multivibrator's power supply, second electric control switch is used for controlling human infrared detection module's power supply, third electric control switch is used for controlling the power supply of TV body.
Further, the multivibrator is a 555 timer based multivibrator.
Further, the output duty cycle of the multivibrator is 50%, and the output period of the multivibrator is 10 to 20 seconds.
Further, the output period of the multivibrator is 10 seconds.
Further, the human body infrared detection module comprises a pyroelectric infrared sensor and a driving circuit thereof.
Further, the first electrically controlled switch comprises: first triode, first current-limiting resistor, first relay, first switch upper end, first switch lower extreme, first control end, first power positive interface and first power negative interface, the base and the first control end of first triode are connected, the projecting pole and the first power negative interface connection of first triode, the collecting electrode of first triode is connected with the coil lower extreme of first relay, the coil upper end and the first power positive interface connection of first relay, the end of opening and first switch lower extreme are connected in usual of first relay, the end of moving of first relay is connected with first switch upper end through first current-limiting resistor.
Further, the first electric control switch further comprises a filter capacitor, and the filter capacitor is connected with a coil of the first relay in parallel.
Further, the first electric control switch, the second electric control switch and the third electric control switch have the same circuit structure.
Further, the television body is further provided with a backlight brightness adjusting module and a photoresistor, the photoresistor is installed on the shell of the television body, the backlight brightness adjusting module is respectively connected with the photoresistor and the backlight module of the television body, and the backlight brightness adjusting module is used for adjusting the brightness of the backlight module of the television body according to the resistance value of the photoresistor.
The utility model has the advantages that: the liquid crystal television can judge whether the front of the television body is occupied, and when the front of the television body is unoccupied, the power supply of the television body is intelligently cut off, so that electricity waste is avoided. Saving resources and being very environment-friendly.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
FIG. 1 is a schematic diagram of the connection relationship of modules inside a TV main body;
FIG. 2 is a schematic diagram of a circuit connection configuration for a multivibrator;
FIG. 3 is a schematic diagram of a circuit connection structure of the first electrically controlled switch;
FIG. 4 is a schematic diagram of a circuit connection configuration of a second electrically controlled switch;
Fig. 5 is a schematic diagram of a circuit connection structure of the third electrically controlled switch.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Embodiment 1, referring to fig. 1, an energy-saving lcd tv includes a tv body, where: the infrared detection device comprises a standby response module 100, a first electronic control switch 200, a multivibrator 300, a second electronic control switch 400, a human body infrared detection module 500, a NOT gate chip 800 and a third electronic control switch 600, wherein the induction surface of the human body infrared detection module 500 faces the front of a liquid crystal television, the output end of the standby response module 100 is connected with the first electronic control switch 200, the output end of the multivibrator 300 is connected with the second electronic control switch 400, the output end of the human body infrared detection module 500 is connected with the third electronic control switch 600 through the NOT gate chip 800, the first electronic control switch 200 is connected with a power supply 700 and the power supply end of the multivibrator 300, the second electronic control switch 400 is connected with the power supply 700 and the power supply end of the human body infrared detection module 500, and the third electronic control switch 600 is connected with the power supply ends of external alternating current and the television body.
When the tv body is in the standby state, the standby response module 100 generates a response level, the response level acts on the first electronically controlled switch 200, the first electronically controlled switch 200 is closed, and the multivibrator 300 is powered.
The power supply 700 may supply a suitable voltage to the multivibrator 300 and the human body infrared detection module 500. The multivibrator 300 generates alternating pulses, which act in the second electronically controlled switch 400 such that the second electronically controlled switch 400 is opened and closed at a certain period, thereby causing the human body infrared detection module 500 to be turned off and on at a certain period. When the human body infrared detection module 500 is started, it can detect the human body signal in front of the television body, and when a human body is detected, the human body infrared detection module 500 outputs the high level of response, and the high level acts on the third electronic control switch 600 through the not gate chip 800, and the third electronic control switch 600 does not act. When no person is detected, the human body infrared detection module 500 outputs a low level, the low level acts on the third electronic control switch 600 through the not gate chip 800, the third electronic control switch 600 acts to cut off the connection between the television body and the external alternating current, and the television body is powered off. The waste of electric energy caused by the long-term standby state of the television is avoided.
The liquid crystal display television can judge whether the front of the television body is occupied, and when the front of the television body is not occupied, the power supply of the television body is intelligently cut off, so that electricity waste is avoided. Saving resources and being very environment-friendly.
referring to fig. 2, wherein multivibrator 300 is comprised of 555 timer U1, multivibrator 300 includes: the upper ends of a 555 timer U1, a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2 are respectively connected with the fourth pin, the eighth pin and a first resistor R1 of the 555 timer U1, a seventh pin of the 555 timer U1 is respectively connected with the lower end of the first resistor R1 and the upper end of the second resistor R2, a second pin of the 555 timer U1 is connected with the sixth pin thereof, a sixth pin of the 555 timer U1 is respectively connected with the lower end of the second resistor R2 and the upper end of the first capacitor C1, the lower end of the first capacitor C1 is respectively connected with the first pin of the 555 timer U1 and the lower end of the second capacitor C2, the upper end of the second capacitor C2 is connected with the fifth pin of the 555 timer U1, and a third pin of the 555 timer U1 is connected with the second electronic control switch 400. The function of each pin of the 555 timer U1 is shown in the following table:
By adjusting the parameters of the first resistor R1, the second resistor R2, the first capacitor C1 and the second capacitor C2, the multivibrator 300 can generate alternating pulses with a duty cycle of 50% and a period of 10 seconds to 20 seconds, in this embodiment, 10 seconds, wherein the first resistor R1 is 0 Ω, the second resistor R2 is 720K Ω, the first capacitor C1 is 10uF, and the second capacitor C2 is 0.01 uF. Since the duty ratio of the generated pulse is 50%, the second electronically controlled switch 400 has a closing time of 5 seconds and has an opening time of 5 seconds, so that the human body infrared detection module 500 has an opening time of 5 seconds and a closing time of 5 seconds. The human body infrared detection module 500 can detect the human body signal in front of the television body within 5 seconds of the turn-on time. Thus, by doing so, a human body signal in front of the television body is detected.
The circuit structures of the first electrically controlled switch 200, the second electrically controlled switch 400 and the third electrically controlled switch 600 are all the same.
Referring to fig. 3, the first electrically controlled switch 200 includes: the power supply comprises a first triode Q1, a first current-limiting resistor R3, a first relay K1, a first switch upper end 220, a first switch lower end 230, a first control end 210, a first power supply positive electrode interface and a first power supply negative electrode interface, wherein the base of the first triode Q1 is connected with the first control end 210, the emitting electrode of the first triode Q1 is connected with the first power supply negative electrode interface, the collecting electrode of the first triode Q1 is connected with the coil lower end of the first relay K1, the coil upper end of the first relay K1 is connected with the first power supply positive electrode interface, the normally open end of the first relay K1 is connected with the first switch lower end 230, and the moving end of the first relay K1 is connected with the first switch upper end 220 through a first current-limiting switch. In the first electronically controlled switch 200, the first control terminal 210 is connected to the output terminal of the standby response module 100, the first switch upper terminal 220 is connected to the power supply 700, and the first switch lower terminal 230 is connected to the eighth pin of the 555 timer U1, of course, the first power positive interface and the first power negative interface are connected to appropriate voltages capable of driving the first relay, and the connections are prior art and will not be described in detail here.
Referring to fig. 4, the second electrically controlled switch 400 includes: the power supply comprises a second triode Q2, a second current-limiting resistor R4, a second relay K2, a second switch upper end 420, a second switch lower end 430, a second control end 410, a second power supply positive electrode interface and a second power supply negative electrode interface, wherein the base of the second triode Q2 is connected with the second control end 410, the emitter of the second triode Q2 is connected with the second power supply negative electrode interface, the collector of the second triode Q2 is connected with the coil lower end of the second relay K2, the coil upper end of the second relay K2 is connected with the second power supply positive electrode interface, the normally open end of the second relay K2 is connected with the second switch lower end 430, and the movable end of the second relay K2 is connected with the second switch upper end 420 through the second current-limiting resistor R4. In the second electronic control switch 400, the second control terminal 410 is connected to the third pin of the 555 timer U1, the upper end 420 of the second switch is connected to the power supply 700, and the lower end 430 of the second switch is connected to the power supply of the human body infrared detection module 500, of course, the second power positive interface and the second power negative interface are connected to a suitable voltage capable of driving the second relay K2, and the connection belongs to the prior art and is not described in detail here.
Referring to fig. 5, the third electrically controlled switch 600 includes: the power supply comprises a third triode Q3, a third current-limiting resistor R5, a third relay K3, a third switch upper end 620, a third switch lower end 630, a third control end 610, a third power supply positive electrode interface and a third power supply negative electrode interface, wherein the base of the third triode Q3 is connected with the third control end 610, the emitter of the third triode Q3 is connected with the third power supply negative electrode interface, the collector of the third triode Q3 is connected with the coil lower end of the third relay K3, the coil upper end of the third relay K3 is connected with the third power supply positive electrode interface, the normally open end of the third relay K3 is connected with the third switch lower end 630, and the movable end of the third relay K3 is connected with the third switch upper end 620 through the third current-limiting resistor R5. In the third electronically controlled switch 600, the third control terminal 610 is connected with the output terminal of the nand gate chip 800, the upper end 620 of the third switch is connected with the external ac power, and the lower end 630 of the third switch is connected with the power supply terminal of the tv body, of course, the third power positive interface and the third power negative interface are connected with the proper voltage capable of driving the third relay K3, and the connection belongs to the prior art and will not be described in detail here.
Of course, as an optimization, the coil of the first relay K1, the coil of the second relay K2, and the coil of the third relay K3 are all connected in parallel with filter capacitors. By arranging the filter capacitor, reverse surge generated by the coil of the first relay K1, the coil of the second relay K2 and the coil of the third relay K3 can be absorbed, and the service lives of the first relay K1, the second relay K2 and the third relay K3 are prolonged.
Preferably, the human body infrared detection module 500 includes a pyroelectric infrared sensor (not shown) and a driving circuit (not shown).
As an optimization, the television body is further provided with a backlight brightness adjustment module (not shown) and a photoresistor (not shown), the photoresistor is installed on the shell of the television body, the backlight brightness adjustment module is respectively connected with the photoresistor and the backlight module of the television body, and the backlight brightness adjustment module is used for adjusting the brightness of the backlight module of the television body according to the resistance value of the photoresistor. The backlight module of the television body can be adjusted according to the brightness of the environment through the backlight brightness adjusting module and the photoresistor, so that the liquid crystal television is more power-saving.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and changes without departing from the spirit of the invention.
Claims (9)
1. The energy-saving liquid crystal television comprises a television body and is characterized in that: standby response module, first electric control switch, multivibrator, second electric control switch, human infrared detection module, NOT gate chip and third electric control switch, human infrared detection module's response face is towards the place ahead of LCD TV, standby response module's output and first electric control switch are connected, multivibrator's output and second electric control switch are connected, human infrared detection module's output passes through NOT gate chip and is connected with third electric control switch, first electric control switch is used for controlling multivibrator's power supply, second electric control switch is used for controlling human infrared detection module's power supply, third electric control switch is used for controlling the power supply of TV body.
2. The energy-saving lcd tv of claim 1, wherein the multivibrator is a 555 timer based multivibrator.
3. An energy-saving lcd tv set as claimed in claim 2, wherein the output duty cycle of the multivibrator is 50% and the output period of the multivibrator is 10 seconds to 20 seconds.
4. An energy-saving LCD TV as claimed in claim 3, wherein the output period of the multivibrator is 10 seconds.
5. The energy-saving liquid crystal television set according to claim 1, wherein the human body infrared detection module comprises a pyroelectric infrared sensor and a driving circuit thereof.
6. The energy-saving lcd tv set according to claim 1, wherein the first electrically controlled switch comprises: first triode, first current-limiting resistor, first relay, first switch upper end, first switch lower extreme, first control end, first power positive interface and first power negative interface, the base and the first control end of first triode are connected, the projecting pole and the first power negative interface connection of first triode, the collecting electrode of first triode is connected with the coil lower extreme of first relay, the coil upper end and the first power positive interface connection of first relay, the end of opening and first switch lower extreme are connected in usual of first relay, the end of moving of first relay is connected with first switch upper end through first current-limiting resistor.
7. The energy-saving liquid crystal television set according to claim 6, wherein the first electrically controlled switch further comprises a filter capacitor, and the filter capacitor is connected in parallel with the coil of the first relay.
8. The energy-saving lcd tv set according to claim 7, wherein the first electrically controlled switch, the second electrically controlled switch and the third electrically controlled switch have the same circuit structure.
9. the energy-saving liquid crystal television set according to claim 1, wherein the television set body is further provided with a backlight brightness adjusting module and a photoresistor, the photoresistor is mounted on a shell of the television set body, the backlight brightness adjusting module is respectively connected with the photoresistor and the backlight module of the television set body, and the backlight brightness adjusting module is used for adjusting the brightness of the backlight module of the television set body according to the resistance value of the photoresistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920574534.3U CN209767690U (en) | 2019-04-24 | 2019-04-24 | Energy-saving liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920574534.3U CN209767690U (en) | 2019-04-24 | 2019-04-24 | Energy-saving liquid crystal television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209767690U true CN209767690U (en) | 2019-12-10 |
Family
ID=68760516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920574534.3U Expired - Fee Related CN209767690U (en) | 2019-04-24 | 2019-04-24 | Energy-saving liquid crystal television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209767690U (en) |
-
2019
- 2019-04-24 CN CN201920574534.3U patent/CN209767690U/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: 20191210 Termination date: 20200424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |