CN202791633U - LED (light emitting diode) tunnel lamp - Google Patents
LED (light emitting diode) tunnel lamp Download PDFInfo
- Publication number
- CN202791633U CN202791633U CN2012204202615U CN201220420261U CN202791633U CN 202791633 U CN202791633 U CN 202791633U CN 2012204202615 U CN2012204202615 U CN 2012204202615U CN 201220420261 U CN201220420261 U CN 201220420261U CN 202791633 U CN202791633 U CN 202791633U
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- led
- led lamp
- current source
- sensing module
- coil
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Abstract
The utility model relates to an LED (light emitting diode) tunnel lamp. The LED tunnel lamp comprises an LED lamp bead, a sensing module, a coil and a test module. As the fault information of the LED lamp bead is automatically detected by utilizing the current change used by a Hall element, the sensing module is used for converting the fault information into a fault signal and outputting the fault signal, and a computer can clearly point out the position of the failed LED bead through singlechip control, the problems that the conventional LED tunnel lamp cannot automatically detect the fault of the LED lamp bead and the detection of the fault is hard can be solved.
Description
Technical field
The utility model relates to the LED Tunnel Lamp, especially has the LED Tunnel Lamp of fault self-checking function.
Background technology
Because the energy conservation characteristic of LED lighting has begun to show up prominently in civilian and road illuminating lamp, the LED Tunnel Lamp is a kind in the LED road illuminating lamp, is characterized in being installed in the tunnel.Therefore, need successively work 24 hours every days, and the Tunnel Lamp that places one's entire reliance upon of the illumination in the tunnel when Tunnel Lamp breaks down or damage, will inevitably cause tunnel illumination can not reach the requirement of Lighting Design.Because the LED Tunnel Lamp is that plurality of LEDs lamp pearl is arranged by matrix or the connection in series-parallel arrangement mode forms, thereby, as long as damage wherein any one or several LED lamp pearls, light fixture only has the part to illuminate, the illumination in some areas is descended, so that check that in the tunnel light fixture damaged condition is more difficult, loaded down with trivial details.
The utility model content
Technical problem to be solved in the utility model provides a kind of LED Tunnel Lamp, solves traditional LED Tunnel Lamp and can not automatically detect out of order LED lamp pearl and detection failure LED lamp pearl hard problem.The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of LED Tunnel Lamp, it is characterized in that: it comprises LED lamp pearl, sensing module, current source, described LED lamp pearl has 12, described sensing module comprises analog sensor, signal processor, described 12 LED lamp pearls are divided into three groups, wherein every group has four LED lamp pearls, and 4 described every group LED lamp pearls are connected into a branch road, the positive pole of three branch roads that described three groups of lamp pearls consist of is interconnected in the first node, negative pole one end is interconnected in the second node, described the first node is connected with the positive pole of described current source, and described the second node is connected with the negative pole of described current source; Described analog sensor comprises Hall element, coil, positive pole one end of the arbitrary branch road in described coil and described three branch roads is connected, when branch current changes, just can define LED lamp pearl damages, the offset current of described hall element output signal control flow to coil, described sensing module namely detects fault-signal, is transformed into the alarm signal that can transmit by signal processor and transfers out.
Further described current source is constant-current source.
When LED lamp pearl damaged, the branch current at this LED lamp pearl place changed, and the electric current of other branch road also changes accordingly, and this is that the constant-current characteristics of described constant-current source determines.
Described sensor utilizes the combination of Hall element and coil, coil is connected in the branch road of any one LED lamp pearl, when branch current changes, just can define LED lamp pearl damages, described sensing module detects fault-signal, is transformed into the alarm signal that can transmit by signal processor and transfers out.And the output circuit output alarm signal by described sensing module, and transfer to computer, and show accurately the position of fault LED lamp pearl by the described computer of Single-chip Controlling, thus can change accurately, timely the LED lamp pearl of damage, normal to guarantee the illumination in the LED tunnel.
The beneficial effects of the utility model are: when arbitrary branch current changes, the fault-signal that described coil is detected converts the fault-signal that can transmit to and transfers to computer by signal processor, and show accurately the position of fault LED lamp pearl by the described computer of Single-chip Controlling, thereby and send the self-checking function that alarm signal has realized the LED Tunnel Lamp, so that operating personnel can change the LED lamp pearl of damage accurately, timely, guarantee that the illumination in the LED tunnel is normal.
Description of drawings
Fig. 1 is the utility model structure principle chart;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, LED lamp pearl, the 2, first branch road, the 3, second branch road, the 4, the 3rd branch road
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
A LED Tunnel Lamp, LED power are 60W.12 lamp pearls connect by circuit diagram as shown in Figure 1, and be 700mA during every branch current normal operation, total current is 2.1A, when described LED lamp pearl 1 open circuit is wherein arranged, the first branch current is 0, the second branch road is 1.05ma, and the 3rd branch current is 1.05ma, and the current changing rate of every branch road is:
（1.05-0.7）/0.7=1.5
When the described coil of described sensing module was connected on described first branch road of described LED lamp pearl 1 damage, the described sensing module output voltage that makes increased to 5V from 0V.
When the described coil of described sensing module was connected on described the second branch road or the 3rd branch road, the variation of its electric current made described sensing module output voltage increase to 5V from 0V too.
Concrete running parameter is as shown in the table:
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. LED Tunnel Lamp, it is characterized in that: it comprises LED lamp pearl, sensing module, current source, described LED lamp pearl has 12, described sensing module comprises analog sensor, signal processor, described 12 LED lamp pearls are divided into three groups, wherein every group has four LED lamp pearls, and 4 described every group LED lamp pearls are connected into a branch road, the positive pole of three branch roads that described three groups of lamp pearls consist of is interconnected in the first node, negative pole one end is interconnected in the second node, described the first node is connected with the positive pole of described current source, and described the second node is connected with the negative pole of described current source; Described analog sensor comprises Hall element, coil, positive pole one end of the arbitrary branch road in described coil and described three branch roads is connected, when branch current changes, just can define LED lamp pearl damages, the offset current of described hall element output signal control flow to coil, described sensing module namely detects fault-signal, is transformed into the alarm signal that can transmit by signal processor and transfers out.
2. LED Tunnel Lamp according to claim 1, it is characterized in that: described current source is constant-current source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204202615U CN202791633U (en) | 2012-08-22 | 2012-08-22 | LED (light emitting diode) tunnel lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204202615U CN202791633U (en) | 2012-08-22 | 2012-08-22 | LED (light emitting diode) tunnel lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791633U true CN202791633U (en) | 2013-03-13 |
Family
ID=47818891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204202615U Expired - Lifetime CN202791633U (en) | 2012-08-22 | 2012-08-22 | LED (light emitting diode) tunnel lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791633U (en) |
-
2012
- 2012-08-22 CN CN2012204202615U patent/CN202791633U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151216 Address after: 225123, 8, Meng long road, Ganquan street, Hanjiang District, Hanjiang, Jiangsu, Yangzhou Patentee after: YANGZHOU HAIXIA OPTOELECTRONIC Co.,Ltd. Address before: 225008, Yangzhou City, Jiangsu province Daming Temple Beiping Mountain Road (Pingshan Township opposite) Patentee before: JIANGSU CHINATOWN NEON DIGITAL TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |