CN203708360U - LED television having overcurrent automatic-shutdown function - Google Patents
LED television having overcurrent automatic-shutdown function Download PDFInfo
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- CN203708360U CN203708360U CN201320780514.4U CN201320780514U CN203708360U CN 203708360 U CN203708360 U CN 203708360U CN 201320780514 U CN201320780514 U CN 201320780514U CN 203708360 U CN203708360 U CN 203708360U
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Abstract
The utility model discloses an LED television having an overcurrent automatic-shutdown function. The LED television comprises an image output circuit, a power supply connected with the image output circuit, an image encoder, an image decoder and an LED display; and the LED television further comprises an overcurrent detection circuit, a memory chip and an overcurrent automatic-shutdown circuit. The following technical effects can be achived by use of the LED television: when a value of actual current in an LED television circuit is above a pre-stored overcurrent alarm current value, an alarm device can make an alarm sound and light an alarm lamp; and when a value of the actual current in the LED television circuit exceeds a pre-stored overcurrent automatic-shutdown current value, the alarm device can make an alarm sound and light an alarm lamp, and the overcurrent automatic-shutdown circuit triggers a disconnection of a power supply switch, so damage of equipment because of too large circuit current is prevented, and a role in protection of the LED television is played.
Description
Technical field
The utility model relates to LED lighting technical field, relates in particular to a kind of LED TV with overcurrent automatic shut-off function.
Background technology
LED TV is the LCD TV using LED as backlight.Relatively traditional C RT TV, that LED TV has is ultra-thin, high picture quality, extra long life, energy-conservation, colour gamut is broad and the significant advantage such as environmental protection, thereby has occupied market leading position.
Although LED superiority of TV is obvious, also there is defect.Many electric equipments have certain requirement to AC power electric current, and the voltage of electrical network supply is to have fluctuation, and even fluctuation is larger, in the time that electric current is too high, can make equipment impaired, reduces the useful life of equipment, and LED TV is no exception.Because LED display has ultra-thin characteristic, its corollary apparatus volume is also corresponding less, the inner support circuit of LED TV must be highly integrated, in the time that electric current is too high, can make LED TV internal circuit board impaired, use can make hardware seriously reduce useful life for a long time, simultaneously the also variation of display effect stability of display.Therefore, how better to protect LED TV not damaged with the better hardware that extends by circuital current fluctuation and seem particularly urgent useful life.
Utility model content
The purpose of this utility model is, the LED TV with overcurrent automatic shut-off function is provided, and solves LED TV and causes the problem of the impaired and lost of life of its equipment because of overcurrent.
For solving the problems of the technologies described above, the utility model provides a kind of LED TV with overcurrent automatic shut-off function, comprise image output circuit and connected power supply, image encoder, image decoder and light-emitting diode display, also comprise over-current detection circuit, memory chip and overcurrent automatic shutdown circuitry;
Over-current detection circuit is connected with memory chip, for detecting in real time the operating current of circuit in LED TV, and sends the working current value real-time monitoring to memory chip;
Memory chip is also connected with image encoder and overcurrent automatic shutdown circuitry, and memory chip is pre-stored overcurrent automatic shutdown current value;
Overcurrent automatic shutdown circuitry is also connected with power supply, be used for by the overcurrent automatic shutdown current value ratio storing in advance in the working current value of the real-time detection receiving and memory chip, in the time that the working current value of real-time detection is greater than overcurrent automatic shutdown current value, overcurrent automatic shutdown circuitry triggers described mains switch and disconnects, and power supply quits work.
Further, memory chip, image encoder and overcurrent automatic shutdown circuitry are arranged in image output circuit.
Further, memory chip is also pre-stored an overcurrent alarm current value, and wherein, the overcurrent alarm current value storing in advance in memory chip is less than the overcurrent automatic shutdown current value storing in advance.
Further, image encoder is also connected with image decoder, and image decoder is also connected with light-emitting diode display; Image encoder receive the output signal of image output circuit and encode after be sent to image decoder, image decoder by after the signal decoding of receiving to described light-emitting diode display.
Further, also comprise overcurrent warning circuit, overcurrent warning circuit is arranged in image output circuit, is connected with memory chip.
Further, also comprise warning device, warning device is connected with the overcurrent warning circuit in image output circuit.
Further, warning device comprises loudspeaker and alarm lamp; Described loudspeaker, are connected with overcurrent warning circuit and receive its signal and sound the alarm; Described alarm lamp, is connected with overcurrent warning circuit and receives the bright warning light of its signal.
The disclosed LED TV with overcurrent automatic shut-off function of the utility model, in the time that actual current in LED television circuit exceedes pre-stored overcurrent alarm current value, warning device can give the alarm sound and bright warning light, remind end user to take corresponding measure, in order to avoid this overcurrent causes the impaired and lost of life of equipment; In the time that actual current in LED television circuit exceedes pre-stored overcurrent automatic shutdown current value, overcurrent automatic shutdown circuitry triggers mains switch and disconnects, thereby plays the effect of protection LED TV.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram that the utlity model has the LED TV of overcurrent automatic shut-off function;
Fig. 2 is the electrical block diagram that the utlity model has the LED TV of overcurrent warning and overcurrent automatic shutoff protective functions.
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
If Fig. 1 is the electrical block diagram that the utlity model has the LED TV of overcurrent automatic shut-off function, comprise image output circuit and connected power supply, image encoder, image decoder and light-emitting diode display, also comprise over-current detection circuit, memory chip and overcurrent automatic shutdown circuitry.
Power supply is connected with image output circuit, and described power supply provides stable direct-current working volts for LED television circuit.
Over-current detection circuit is connected with the memory chip in image output circuit, and described over-current detection circuit is for real-time detection circuit electric current and the current signal detecting is sent to memory chip.
Image output circuit is connected with power supply, image decoder, light-emitting diode display and over-current detection circuit, and described image output circuit is provided with memory chip, overcurrent automatic shutdown circuitry and image encoder.Memory chip is also connected with overcurrent automatic shutdown circuitry and image encoder, and the real-time current detected value of pre-stored overcurrent automatic shutdown current value and over-current detection circuit is sent to overcurrent automatic shutdown circuitry and image encoder by described memory chip.Overcurrent automatic shutdown circuitry is connected with memory chip and power supply, described overcurrent automatic shutdown circuitry is for comparing the working current value of the real-time detection receiving with the overcurrent alarm current value storing in advance in memory chip, in the time that the working current value of real-time detection is greater than overcurrent automatic shutdown current value, overcurrent automatic shutdown circuitry triggers mains switch and disconnects.
Under normal mode of operation, the pre-stored overcurrent automatic shutdown current value of meeting in memory chip, the voltage of electrical network supply is to have fluctuation, over-current detection circuit can be sent to memory chip by the current signal detecting, memory chip receives and is sent to image encoder and overcurrent automatic shutdown circuitry from the signal of over-current detection circuit and by pre-stored overcurrent automatic shutdown current value and real-time current detected value.Current signal and predefined overcurrent automatic shutdown current value that overcurrent automatic shutdown circuitry transmits according to memory chip contrast, in the time that the electric current in circuit exceedes pre-stored overcurrent automatic shutdown current value, command signal is passed to power supply by overcurrent automatic shutdown circuitry, thereby deenergization reaches the object of automatic shutdown; If the current signal that current detection circuit detects does not have pre-stored overcurrent automatic shutdown current value, overcurrent automatic shutdown circuitry is made the judgement of not carrying out any order after receiving the current signal from current detection circuit, power supply does not disconnect, thereby does not carry out the order of automatic shutdown.
Simultaneously, memory chip is by self pre-stored overcurrent automatic shutdown current value and be sent to image encoder from the real-time current detected value of over-current detection circuit, described image encoder receive the current signal of memory chip and encode after be sent to image decoder, described image decoder is converted into image information after the information of receiving is decoded and exports light-emitting diode display to, and user can check by remote controller the real-time current information of circuit at on-screen menu.
Preferably, as shown in Figure 2, on the basis of Fig. 1, increase overcurrent warning circuit and connected warning device.
Described memory chip, also pre-stored have an overcurrent alarm current value, and the overcurrent alarm current value storing in advance in memory chip is less than the overcurrent automatic shutdown current value storing in advance.
Overcurrent warning circuit is arranged in image output circuit, be connected with the memory chip of image output circuit, described overcurrent warning circuit is for comparing the real-time current detected value of reception with the overcurrent alarm current value storing in advance in memory chip, in the time that real-time current detected value is greater than overcurrent alarm current value, overcurrent warning circuit trigger alarm device is reported to the police.
Warning device is connected with overcurrent warning circuit, and described warning device comprises loudspeaker and alarm lamp.Described loudspeaker are connected with overcurrent warning circuit, have the function of the order that sounds the alarm that receives and carry out described overcurrent warning circuit; Described alarm lamp is connected with overcurrent warning circuit, has the function of the bright warning light order that receives and carry out described overcurrent warning circuit.
Under normal mode of operation, the pre-stored overcurrent automatic shutdown current value of meeting and an overcurrent alarm current value in memory chip, overcurrent alarm current value is lower than overcurrent automatic shutdown value.The current signal detecting is sent to memory chip by current detection circuit, pre-stored overcurrent automatic shutdown current value and the real-time current detected value receiving are sent to overcurrent warning circuit and overcurrent automatic shutdown circuitry by memory chip, during when detecting in real time in circuit that current value exceedes pre-stored overcurrent alarm current value and lower than pre-stored overcurrent automatic shutdown current value, overcurrent automatic shutdown circuitry sends the instruction of not carrying out any order, and overcurrent warning circuit sends command signal to loudspeaker and warning light in warning device, make loudspeaker ring and alarm lamp bright, report to the police and the object of automatic shutdown not thereby reach, in the time that the real-time current detected value in circuit exceedes pre-stored overcurrent automatic shutdown current value, command signal is passed to loudspeaker and the alarm lamp in warning device by overcurrent warning circuit, make loudspeaker ring and alarm lamp flicker, command signal is passed to power supply by overcurrent automatic shutdown circuitry, mains switch is disconnected, thereby realize the dual-use function that has alarm and automatic shutdown concurrently.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.
Claims (7)
1. one kind has the LED TV of overcurrent automatic shut-off function, comprise image output circuit and connected power supply, image encoder, image decoder and light-emitting diode display, it is characterized in that: also comprise over-current detection circuit, memory chip and overcurrent automatic shutdown circuitry;
Described over-current detection circuit is connected with described memory chip, for detecting in real time the operating current of circuit in LED TV, and sends the working current value real-time monitoring to described memory chip;
Described memory chip is also connected with described image encoder and described overcurrent automatic shutdown circuitry, and described memory chip is pre-stored overcurrent automatic shutdown current value;
Described overcurrent automatic shutdown circuitry is also connected with described power supply, be used for by the overcurrent automatic shutdown current value ratio storing in advance in the working current value of the real-time detection receiving and described memory chip, in the time that the working current value of real-time detection is greater than overcurrent automatic shutdown current value, described overcurrent automatic shutdown circuitry triggers described mains switch and disconnects, and power supply quits work.
2. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Described memory chip, described image encoder and described overcurrent automatic shutdown circuitry are arranged in described image output circuit.
3. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Described memory chip is also pre-stored an overcurrent alarm current value, wherein,
The overcurrent alarm current value storing in advance in described memory chip is less than the overcurrent automatic shutdown current value storing in advance.
4. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Described image encoder is also connected with described image decoder, and described image decoder is also connected with light-emitting diode display;
Described image encoder receive the output signal of described image output circuit and encode after be sent to described image decoder, described image decoder will be sent to described light-emitting diode display after the signal decoding of receiving.
5. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Also comprise overcurrent warning circuit, described overcurrent warning circuit is arranged in described image output circuit, is connected with described memory chip.
6. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Also comprise warning device, described warning device is connected with the described overcurrent warning circuit in described image output circuit.
7. the LED TV with overcurrent automatic shut-off function according to claim 1, is characterized in that:
Described warning device comprises loudspeaker and alarm lamp;
Described loudspeaker, are connected with overcurrent warning circuit and receive its signal and sound the alarm;
Described alarm lamp, is connected with overcurrent warning circuit and receives the bright warning light of its signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780514.4U CN203708360U (en) | 2013-12-02 | 2013-12-02 | LED television having overcurrent automatic-shutdown function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780514.4U CN203708360U (en) | 2013-12-02 | 2013-12-02 | LED television having overcurrent automatic-shutdown function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708360U true CN203708360U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320780514.4U Expired - Fee Related CN203708360U (en) | 2013-12-02 | 2013-12-02 | LED television having overcurrent automatic-shutdown function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203708360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574946A (en) * | 2014-09-17 | 2017-04-19 | 弗兰克公司 | Triggered operation and/or recording of test and measurement or imaging tools |
| CN114968378A (en) * | 2021-02-23 | 2022-08-30 | 广州视源电子科技股份有限公司 | Control method, device, equipment and storage medium |
-
2013
- 2013-12-02 CN CN201320780514.4U patent/CN203708360U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574946A (en) * | 2014-09-17 | 2017-04-19 | 弗兰克公司 | Triggered operation and/or recording of test and measurement or imaging tools |
| CN114968378A (en) * | 2021-02-23 | 2022-08-30 | 广州视源电子科技股份有限公司 | Control method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |