CN111447716A - Lamp and lighting system - Google Patents
Lamp and lighting system Download PDFInfo
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- CN111447716A CN111447716A CN202010327849.5A CN202010327849A CN111447716A CN 111447716 A CN111447716 A CN 111447716A CN 202010327849 A CN202010327849 A CN 202010327849A CN 111447716 A CN111447716 A CN 111447716A
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- 238000002955 isolation Methods 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 11
- 239000011324 bead Substances 0.000 claims description 31
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- RKUAZJIXKHPFRK-UHFFFAOYSA-N 1,3,5-trichloro-2-(2,4-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC=C1C1=C(Cl)C=C(Cl)C=C1Cl RKUAZJIXKHPFRK-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 241001465382 Physalis alkekengi Species 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention discloses a lamp, which comprises a PIR sensor and a PCB board for mounting the PIR sensor; the PIR sensor is arranged in a first installation area on the PCB, the PCB is provided with a hollow isolation belt, and the hollow isolation belt is a belt-shaped hollow area on the PCB; the hollow isolation belt is used for separating the first mounting area from mounting areas of other components on the PCB, and the mounting areas of the other components are second mounting areas; a PCB passage is arranged between the first mounting area and the second mounting area, and the PIR sensor is electrically connected with the rest components through the PCB passage. According to the invention, the PCB cutting plate is hollowed, so that the probability of interference on the PIR sensor is greatly reduced. The invention also provides a lighting system with the beneficial effects.
Description
Technical Field
The invention relates to the field of lighting appliances, in particular to a lamp and a lighting system.
Background
With the progress of communication technology and internet technology, words such as smart cities and smart homes become closer to daily lives of people, wherein intelligent lighting means a distributed lighting control system formed by technologies such as internet of things, wired/wireless communication technology, power line carrier communication technology, embedded computer intelligent information processing and energy-saving control, so that intelligent control over lighting equipment is achieved.
And wherein, some intelligent lamps and lanterns accessible PIR sensor (pyroelectric infrared sensor, Passive infra red sensor) detect and preset the region and have the human body, when someone exists in presetting the region, open the intelligent lighting apparatus that lamps and lanterns carried out the illumination automatically, can make things convenient for the daily life living of appointing greatly, but it faces a huge problem at present, promptly the PIR lamps and lanterns are extremely easily influenced by external disturbance (mainly electromagnetic interference, like the influence that the WIFI subassembly caused under the transmission state), including conduction interference, radiation interference and 3.3V power supply interference, lead to the PIR sensor by the false triggering, even there is the people not yet to be close the desk lamp, the phenomenon that the desk lamp was automatic to light.
Therefore, how to solve the problem that the PIR sensor in the intelligent lamp is seriously interfered by external electromagnetic waves and is easily triggered by mistake is a problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a lamp and a lighting system, and aims to solve the problems that a PIR sensor is seriously interfered by the outside and the lamp is easily triggered by mistake in the prior art.
In order to solve the technical problem, the invention provides a lamp, which comprises a PIR sensor and a PCB board for mounting the PIR sensor;
the PIR sensor is arranged in a first installation area on the PCB, the PCB is provided with a hollow isolation belt, and the hollow isolation belt is a belt-shaped hollow area on the PCB;
the hollow isolation belt is used for separating the first mounting area from mounting areas of other components on the PCB, and the mounting areas of the other components are second mounting areas;
a PCB passage is arranged between the first mounting area and the second mounting area, and the PIR sensor is electrically connected with the rest components through the PCB passage.
Optionally, in the light fixture, a low frequency filter is further included and is disposed between the PIR sensor and a power supply.
Optionally, in the light fixture, the low-frequency filter is a common-mode inductor.
Optionally, in the light fixture, a plurality of filter capacitors connected in parallel are disposed between the PIR sensor and the low frequency filter.
Optionally, in the light fixture, further comprising a high frequency filter electrically connected to the PIR sensor.
Optionally, in the luminaire, the high-frequency filter is a magnetic bead;
the magnetic bead comprises a first magnetic bead, and the first magnetic bead is connected with an INT pin of the PIR sensor in series.
Optionally, in the lamp, the magnetic beads further include a second magnetic bead, and the second magnetic bead is connected in series with the power supply.
Optionally, in the luminaire, the impedance of the first magnetic bead and the second magnetic bead ranges from 50 Ω/100MHZ to 100 Ω/100MHZ, inclusive.
Optionally, in the luminaire, the width of the hollow isolation strip ranges from 1 mm to 5 mm, inclusive.
A lighting system comprising a luminaire as claimed in any one of the above.
The lamp provided by the invention comprises a PIR sensor and a PCB board for mounting the PIR sensor; the PIR sensor is arranged in a first installation area on the PCB, the PCB is provided with a hollow isolation belt, and the hollow isolation belt is a belt-shaped hollow area on the PCB; the hollow isolation belt is used for separating the first mounting area from mounting areas of other components on the PCB, and the mounting areas of the other components are second mounting areas; a PCB passage is arranged between the first mounting area and the second mounting area, and the PIR sensor is electrically connected with the rest components through the PCB passage. According to the invention, the interference signal is prevented from being transmitted to the PIR sensor by means of physical isolation, the dielectric constant of air is much smaller than that of the PCB and the lead, and the signal conducted in the interference signal is attenuated more, so that the probability of interference on the PIR sensor can be greatly reduced by hollowing the PCB and only leaving the PCB channel necessary for communication with the outside, and a better isolation effect is realized. The invention also provides a lighting system with the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a control board of an embodiment of an anti-interference PIR lighting fixture provided by the present invention;
FIG. 2 is a schematic partial circuit diagram of another embodiment of an anti-jamming PIR lighting fixture according to the present invention;
FIG. 3 is a schematic partial circuit diagram of another embodiment of an anti-jamming PIR lighting fixture according to the present invention;
fig. 4 is a schematic partial circuit diagram of another embodiment of the anti-interference PIR lighting fixture according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the present invention is to provide an anti-interference PIR lamp, wherein a schematic structural diagram of a PCB board 100100 of an embodiment thereof is shown in fig. 1, which is called as a first embodiment, and the lamp includes a PIR sensor 200 and a PCB board 100 for mounting the PIR sensor 200;
the PIR sensor 200 is arranged in a first installation area on the PCB board 100, the PCB board 100 is provided with a hollow isolation belt 110, and the hollow isolation belt 110 is a belt-shaped hollow-out area on the PCB board 100;
the hollow isolation strip 110 is used for separating the first mounting area from mounting areas of other components on the PCB 100, where the mounting areas of the other components are second mounting areas;
a PCB path 120 is provided between the first mounting area and the second mounting area, and the PIR sensor 200 is electrically connected to the remaining components through the PCB path 120.
In particular, the width of the hollow isolation zone 110110 ranges from 1 millimeter to 5 millimeters, inclusive, such as any of 1.0 millimeters, 2.0 millimeters, or 5.0 millimeters.
The PIR sensor 200 is a thermal PIR sensor 200.
The PCB vias 120 are outlined in fig. 1 by dashed lines. The first installation area is an area that is half surrounded by the hollow isolation belt 110, and the first installation area is an area located outside the hollow isolation belt 110 and is not numbered in the drawing.
The lamp provided by the invention comprises a PIR sensor 200 and a PCB 100 for mounting the PIR sensor 200; the PIR sensor 200 is arranged in a first installation area on the PCB board 100, the PCB board 100 is provided with a hollow isolation belt 110, and the hollow isolation belt 110 is a belt-shaped hollow-out area on the PCB board 100; the hollow isolation strip 110 is used for separating the first mounting area from mounting areas of other components on the PCB 100, where the mounting areas of the other components are second mounting areas; a PCB path 120 is provided between the first mounting area and the second mounting area, and the PIR sensor 200 is electrically connected to the remaining components through the PCB path 120. According to the invention, the interference signal is prevented from being transmitted to the PIR sensor 200 by means of physical isolation, the dielectric constant of air is much smaller than that of the PCB 100 and the lead, and the signal transmitted in the interference signal is attenuated more, so that the probability of interference on the PIR sensor 200 can be greatly reduced by hollowing the PCB 100 and only leaving the PCB channel 120 necessary for communication with the outside, and a better isolation effect is realized.
On the basis of the first embodiment, a connection part between the PIR sensor 200 and the outside is further improved to obtain a second embodiment, a partial circuit diagram of which is shown in fig. 2, and the lamp includes the PIR sensor 200 and a PCB board 100 for mounting the PIR sensor 200;
the PIR sensor 200 is arranged in a first installation area on the PCB board 100, the PCB board 100 is provided with a hollow isolation belt 110, and the hollow isolation belt 110 is a belt-shaped hollow-out area on the PCB board 100;
the hollow isolation strip 110 is used for separating the first mounting area from mounting areas of other components on the PCB 100, where the mounting areas of the other components are second mounting areas;
a PCB passage 120 is arranged between the first mounting area and the second mounting area, and the PIR sensor 200 is electrically connected with the rest components through the PCB passage 120;
the control board comprises a low-frequency filter;
the low frequency filter is a common mode inductor 210; the common mode inductance 210 is disposed between the PIR sensor 200 and a power supply.
The difference between this embodiment and the above embodiment is that the low-frequency filter is added to the anti-interference PIR lamp in this embodiment, and the rest of the structure is the same as that in the above embodiment, and is not described herein again.
L F1 shows the common mode inductor 210, and U6 shows the PIR sensor 200.
In this embodiment, the common mode inductor 210 is two coils, which are respectively disposed on the pin of the PIR sensor 200 connected to the power supply and the pin of the PIR sensor 200 connected to the common terminal, and plays a role in filtering the low frequency interference signal from the power supply line, and certainly, other low frequency filters may be used instead of the common mode inductor 210, as long as the requirement of filtering the low frequency interference signal is met.
On the basis of the second embodiment, a connection part between the PIR sensor 200 and the outside is further improved to obtain a third embodiment, a partial circuit diagram of which is shown in fig. 3, and the lamp includes the PIR sensor 200 and a PCB board 100 for mounting the PIR sensor 200;
the PIR sensor 200 is arranged in a first installation area on the PCB board 100, the PCB board 100 is provided with a hollow isolation belt 110, and the hollow isolation belt 110 is a belt-shaped hollow-out area on the PCB board 100;
the hollow isolation strip 110 is used for separating the first mounting area from mounting areas of other components on the PCB 100, where the mounting areas of the other components are second mounting areas;
a PCB passage 120 is arranged between the first mounting area and the second mounting area, and the PIR sensor 200 is electrically connected with the rest components through the PCB passage 120;
the control board comprises a low-frequency filter;
the low frequency filter is a common mode inductor 210; the common mode inductor 210 is disposed between the PIR sensor 200 and a power supply;
the control board comprises a high-frequency filter;
the high-frequency filter is a magnetic bead; the control board comprises a first magnetic bead 220, the first magnetic bead 220 being connected in series with an INT pin of the PIR sensor 200.
The difference between this embodiment and the above embodiment is that the high-frequency filter is added to the anti-interference PIR lamp in this embodiment, and the rest of the structure is the same as that in the above embodiment, and is not described herein again.
Furthermore, the control board further includes a second magnetic bead 230, the second magnetic bead 230 is connected in series with the power supply, and naturally, the second magnetic bead 230 is connected in series with the coil of the common mode inductor 210, which is disposed on the power supply pin. Fig. 4 shows a partial schematic circuit diagram of the control board after the second magnetic bead 230 is attached. In the figure, FB1 is the first magnetic bead 220, and FB2 is the second magnetic bead 230.
In this embodiment, the high frequency filter is newly added at the connection between the PIR sensor 200 and the external circuit to filter out high frequency noise transmitted from the signal line, wherein the used magnetic beads are dedicated to suppress high frequency noise and spike interference on the signal line and the power line, and have the ability to absorb electrostatic pulses, and further, the impedance range of the first magnetic bead 220 and the second magnetic bead 230 is 50 Ω/100MHZ to 100 Ω/100MHZ, including end points such as 50.0 Ω/100MHZ, 75.0 Ω/100MHZ, or 100.0 Ω/100 MHZ. Of course, other high frequency filters than magnetic beads may be used.
The invention also provides a lighting system comprising a luminaire as claimed in any one of the above. The lamp provided by the invention comprises a PIR sensor 200 and a PCB 100 for mounting the PIR sensor 200; the PIR sensor 200 is arranged in a first installation area on the PCB board 100, the PCB board 100 is provided with a hollow isolation belt 110, and the hollow isolation belt 110 is a belt-shaped hollow-out area on the PCB board 100; the hollow isolation strip 110 is used for separating the first mounting area from mounting areas of other components on the PCB 100, where the mounting areas of the other components are second mounting areas; a PCB path 120 is provided between the first mounting area and the second mounting area, and the PIR sensor 200 is electrically connected to the remaining components through the PCB path 120. According to the invention, the interference signal is prevented from being transmitted to the PIR sensor 200 by means of physical isolation, the dielectric constant of air is much smaller than that of the PCB 100 and the lead, and the signal transmitted in the interference signal is attenuated more, so that the probability of interference on the PIR sensor 200 can be greatly reduced by hollowing the PCB 100 and only leaving the PCB channel 120 necessary for communication with the outside, and a better isolation effect is realized.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The lamp and the lighting system provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A light fixture, characterized in that the light fixture comprises a PIR sensor and a PCB board for mounting the PIR sensor;
the PIR sensor is arranged in a first installation area on the PCB, the PCB is provided with a hollow isolation belt, and the hollow isolation belt is a belt-shaped hollow area on the PCB;
the hollow isolation belt is used for separating the first mounting area from mounting areas of other components on the PCB, and the mounting areas of the other components are second mounting areas;
a PCB passage is arranged between the first mounting area and the second mounting area, and the PIR sensor is electrically connected with the rest components through the PCB passage.
2. The light fixture of claim 1, further comprising a low frequency filter disposed between the PIR sensor and a power source.
3. The luminaire of claim 2, wherein the low frequency filter is a common mode inductor.
4. A luminaire as claimed in claim 2 or 3, characterized in that a plurality of parallel filter capacitors are arranged between the PIR sensor and the low-frequency filter.
5. The light fixture of claim 1, further comprising a high frequency filter electrically connected to the PIR sensor.
6. The lamp of claim 5, wherein the high frequency filter is a magnetic bead;
the magnetic bead comprises a first magnetic bead, and the first magnetic bead is connected with an INT pin of the PIR sensor in series.
7. The lamp of claim 6, wherein the magnetic bead further comprises a second magnetic bead, the second magnetic bead in series with the power source.
8. The luminaire of claim 7, wherein the first magnetic bead and the second magnetic bead have an impedance ranging from 50 Ω/100MHZ to 100 Ω/100MHZ, inclusive.
9. The luminaire of claim 1, wherein the width of the hollow isolation strip ranges from 1 millimeter to 5 millimeters, inclusive.
10. A lighting system, characterized in that it comprises a luminaire as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327849.5A CN111447716A (en) | 2020-04-23 | 2020-04-23 | Lamp and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327849.5A CN111447716A (en) | 2020-04-23 | 2020-04-23 | Lamp and lighting system |
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| Publication Number | Publication Date |
|---|---|
| CN111447716A true CN111447716A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010327849.5A Pending CN111447716A (en) | 2020-04-23 | 2020-04-23 | Lamp and lighting system |
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Citations (12)
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|---|---|---|---|---|
| US5252782A (en) * | 1992-06-29 | 1993-10-12 | E-Systems, Inc. | Apparatus for providing RFI/EMI isolation between adjacent circuit areas on a single circuit board |
| GB2351348A (en) * | 1999-06-21 | 2000-12-27 | Visonic Ltd | Battery-powered passive infrared detector |
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| CN203309830U (en) * | 2013-06-19 | 2013-11-27 | 北京合立星源光电科技有限公司 | Human body auto-induction LED lamp for construction site temporary lighting |
| CN204090301U (en) * | 2014-07-11 | 2015-01-07 | 邯郸美的制冷设备有限公司 | Anti-interference pcb board and air-conditioning equipment |
| CN204887707U (en) * | 2015-09-11 | 2015-12-16 | 新余市天恩电子技术有限公司 | Hall sensor circuit board |
| CN106594538A (en) * | 2016-12-23 | 2017-04-26 | 浙江生辉照明有限公司 | Induction lamp and system for preventing sensor module from being mistakenly triggered |
| CN206389349U (en) * | 2017-01-19 | 2017-08-08 | 上海凌加智能科技有限公司 | Anti- EMC signal conditioning circuit |
| CN107645825A (en) * | 2017-09-18 | 2018-01-30 | 济南浪潮高新科技投资发展有限公司 | Reduce printed circuit board and its design method that power supply is disturbed HW High Way |
| US20180287302A1 (en) * | 2017-03-28 | 2018-10-04 | Samsung Electronics Co., Ltd. | Pcb including connector and grounds with different potentials, and electronic device having the same |
| CN108631582A (en) * | 2018-06-15 | 2018-10-09 | 北京新能源汽车股份有限公司 | A kind of electric source filter circuit, battery management system and automobile |
| CN212013139U (en) * | 2020-04-23 | 2020-11-24 | 青岛亿联客信息技术有限公司 | Lamp and lighting system |
-
2020
- 2020-04-23 CN CN202010327849.5A patent/CN111447716A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252782A (en) * | 1992-06-29 | 1993-10-12 | E-Systems, Inc. | Apparatus for providing RFI/EMI isolation between adjacent circuit areas on a single circuit board |
| GB2351348A (en) * | 1999-06-21 | 2000-12-27 | Visonic Ltd | Battery-powered passive infrared detector |
| CN102322573A (en) * | 2011-08-26 | 2012-01-18 | 苏州晶雷光电照明科技有限公司 | LED (light-emitting diode) lamp |
| CN203309830U (en) * | 2013-06-19 | 2013-11-27 | 北京合立星源光电科技有限公司 | Human body auto-induction LED lamp for construction site temporary lighting |
| CN204090301U (en) * | 2014-07-11 | 2015-01-07 | 邯郸美的制冷设备有限公司 | Anti-interference pcb board and air-conditioning equipment |
| CN204887707U (en) * | 2015-09-11 | 2015-12-16 | 新余市天恩电子技术有限公司 | Hall sensor circuit board |
| CN106594538A (en) * | 2016-12-23 | 2017-04-26 | 浙江生辉照明有限公司 | Induction lamp and system for preventing sensor module from being mistakenly triggered |
| CN206389349U (en) * | 2017-01-19 | 2017-08-08 | 上海凌加智能科技有限公司 | Anti- EMC signal conditioning circuit |
| US20180287302A1 (en) * | 2017-03-28 | 2018-10-04 | Samsung Electronics Co., Ltd. | Pcb including connector and grounds with different potentials, and electronic device having the same |
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| CN108631582A (en) * | 2018-06-15 | 2018-10-09 | 北京新能源汽车股份有限公司 | A kind of electric source filter circuit, battery management system and automobile |
| CN212013139U (en) * | 2020-04-23 | 2020-11-24 | 青岛亿联客信息技术有限公司 | Lamp and lighting system |
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Application publication date: 20200724 |
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