CN203933590U - Directional ir inductive switch - Google Patents
Directional ir inductive switch Download PDFInfo
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- CN203933590U CN203933590U CN201420372371.8U CN201420372371U CN203933590U CN 203933590 U CN203933590 U CN 203933590U CN 201420372371 U CN201420372371 U CN 201420372371U CN 203933590 U CN203933590 U CN 203933590U
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- collector lens
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- inductive switch
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Abstract
The utility model discloses a kind of directional ir inductive switch, comprise pyroelectric infrared-sensing probe, also comprise single collector lens, described probe is positioned at the focus place of collector lens; Between described probe and collector lens, be provided with for absorbing induction angle with the extinction pipe of UV light.The induction angle of a kind of directional ir inductive switch of the present utility model greatly narrows, and directive property is strong, is not subject to respond to the movable impact of the outer human body of angle thermals source such as (or) other toys, and antijamming capability is strong.
Description
Technical field
The utility model relates to automatic control technology field, specifically a kind of directional ir inductive switch.
Background technology
China has a large population, resource-constrained, and many resources are non-renewable, for energy savings, the light source that is generally applied in each public place takes human body infrared induction switch to control more.At present, human body infrared induction switch comprises pyroelectric infrared-sensing probe 1 (hereinafter to be referred as probe), referring to Fig. 1, at probe 1, a hemispheric set of lenses is set above, the collector lens 2 that set of lenses is arranged on sphere by a plurality of (common more than 10) forms that (collector lens 2 can be convex lens, Fresnel Lenses or other have the lens of light gathering), existing human body infrared induction switch has following defect: (1) probe induction angle is very wide, conventionally over 100 °, and induction angle is carried out to continuous probe, be subject to the impact of toy activity or other thermals source, poor anti jamming capability, (2) the induction direction of probe is generally fixedly installed, and inconvenience is adjusted.
Utility model content
The utility model, for the problem of above-mentioned existence, provides a kind of directional ir inductive switch.
The utility model for achieving the above object, takes following technical scheme to be achieved:
A directional ir inductive switch, comprises pyroelectric infrared-sensing probe, also comprises single collector lens, and described probe is positioned at the focus place of collector lens; Between described probe and collector lens, be provided with for absorbing induction angle with the extinction pipe of UV light.This directional ir inductive switch can provide a kind of single and comparatively narrow regionally detecting, and antijamming capability is strong.
Preferably, described extinction pipe is funnel-form, and one end size matches with probe, and other end size matches with collector lens.
Preferably, described extinction inside pipe wall is black light-absorbing material.Extinction pipe also can be replaced by other light-absorbing covering.
Preferably, described probe detection sector width is 2mm, and collector lens focal length is 10mm, and induction angle is 2arc tan0.1.
Preferably, described extinction pipe one end is fixedly connected with collector lens, and described probe is provided with bearing, and the described extinction pipe other end is connected with bearing by rotating shaft.Extinction pipe can be together with collector lens around probe rotation, and during rotation, between collector lens and probe detection district, distance remains unchanged.The benefit arranging is like this: after the installation of directional ir inductive switch is fixing, the induction direction of infrared induction probe can be adjusted, easy to use.
The invention also discloses another kind of technical scheme: a kind of directional ir inductive switch, comprise pyroelectric infrared-sensing probe, also comprise 2～6 collector lenses, between described collector lens, by extinction sheet, be connected to form the collector lens group of a class sphere, the focus of each collector lens all drops on the detecting area of probe; Between described probe and collector lens group, be provided with for absorbing induction angle with the extinction pipe of UV light.This collector lens can be surveyed for a plurality of regions, and different from wide induction angle continuous probe of the prior art, the detection that the utility model can be realized interruption, jump for a plurality of regions, the use of convenient real life.For example, if use existing infrared sensing switch in the inside, a room, due to its wide induction angle continuous probe, in room, the inside activity will make the continuous On/Off of infrared sensing switch to human body; But adopt after infrared sensing switch of the present utility model, search coverage can be arranged on to some regions, as before the place that enters, bed etc., facilitate inlet/outlet, operate the On/Off of infrared sensing switch when sleeping, waking up.
In order to improve the antijamming capability of infrared sensing switch, should reduce the induction angle of each collector lens as far as possible, preferably, described collector lens group induction angle sum is no more than 30 °.
Compared with prior art, the beneficial effects of the utility model are as follows: the induction angle of a kind of directional ir inductive switch of the present utility model greatly narrows, and directive property is strong, are not subject to the impact of toy activity or other thermals source, and antijamming capability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing infrared sensing switch;
Fig. 2 is the structural representation of a kind of directional ir inductive switch of the utility model;
Fig. 3 is another structural representation of a kind of directional ir inductive switch of the utility model;
Fig. 4 is the another structural representation of a kind of directional ir inductive switch of the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Embodiment 1
Referring to Fig. 2～3, a kind of directional ir inductive switch, comprises pyroelectric infrared-sensing probe 1, also comprises single collector lens 2, and probe 1 is positioned at the focus place of collector lens 2; Between probe 1 and collector lens 2, be provided with for absorbing induction angle with the extinction pipe 3 of UV light.Extinction pipe 3 is funnel-form, and one end size matches with probe 1, and other end size matches with collector lens 2.The inwall of extinction pipe 3 is black light-absorbing material, and extinction pipe also can be replaced by other light-absorbing covering.This directional ir inductive switch can provide a kind of single and comparatively narrow regionally detecting, and antijamming capability is strong.
The detecting area width of probe 1 is d=2mm, the focal length of collector lens 2 is f=10mm, according to lens principle and geometric knowledge, can know that in Fig. 2, upper and lower two folded regions of light are effective induction region, angle between these two light is responded to angle exactly, be made as θ, tan (θ/2)=(d/2)/f=0.1,12 ° of θ=2arc tan0.1 ≈.
When human body enters the activity of induction angular range, it is upper that the infrared ray that human body sends converges in probe by collector lens, and inductive switch can change original on off state.When human body does not enter induction angle, the infrared ray that human body sends can not pass through collector lens, or by just being absorbed by black light-absorbing pipe after collector lens, can not enter probe, and inductive switch is not subject to the impact of physical activity.
According to the needs of different occasions, by selecting specific collector lens and probe, adjust d value and f value, can design suitable induction angle, make to respond to angle and be narrowed to 30 ° even less.In order to improve its antijamming capability, induction angle is preferably no more than 30 °.
Improvements of the present utility model are, as shown in Figure 3, extinction pipe 3 one end are fixedly connected with collector lens 2, and probe 1 is provided with bearing 4, and extinction pipe 3 other ends are connected with bearing 4 by rotating shaft 5.Extinction pipe 3 can be together with collector lens 2 around probe 1 rotation, and during rotation, between collector lens 2 and probe 1 detecting area, distance remains unchanged.The benefit arranging is like this: after the installation of directional ir inductive switch is fixing, the induction direction of infrared induction probe can be adjusted, easy to use.
Embodiment 2
Referring to Fig. 4, a directional ir inductive switch, comprises pyroelectric infrared-sensing probe 1, also comprises 2～6 collector lenses 2, between collector lens 2, by extinction sheet 6, be connected to form the collector lens group 7 of a class sphere, the focus of each collector lens 2 all drops on the detecting area of probe 1; Between probe 1 and collector lens group, be provided with for absorbing induction angle with the extinction pipe 3 of UV light.This infrared sensing switch can be surveyed for a plurality of regions, and different from wide induction angle continuous probe of the prior art, the detection that the utility model can be realized interruption, jump for a plurality of regions, the use of convenient real life.For example, if use existing infrared sensing switch in the inside, a room, due to its wide induction angle continuous probe, in room, the inside activity will make the continuous On/Off of infrared sensing switch to human body; But adopt after infrared sensing switch of the present utility model, search coverage can be arranged on to some regions, as before the place that enters, bed etc., facilitate inlet/outlet, operate the On/Off of infrared sensing switch when sleeping, waking up.
In order to improve the antijamming capability of infrared sensing switch, should reduce the induction angle of each collector lens as far as possible, preferably, described collector lens group induction angle sum is no more than 30 °.
Extinction sheet 6 is on the one hand for connecting different collector lens 2, and for preventing that light is from entering probe 1 between collector lens 2, extinction sheet 6 surfaces are black light-absorbing material or other light-absorbing covering on the other hand.
Only as described above, it is only the preferred embodiment of the utility model, when not limiting with this scope of the utility model enforcement, the content of generally recording according to the utility model claim and utility model specification has been done simple equivalence and has been changed and modify, within all still belonging to the utility model claim scope.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the interest field of the utility model.
Claims (7)
1. a directional ir inductive switch, comprises pyroelectric infrared-sensing probe, it is characterized in that, also comprise single collector lens, described probe is positioned at the focus place of collector lens; Between described probe and collector lens, be provided with for absorbing induction angle with the extinction pipe of UV light.
2. a kind of directional ir inductive switch according to claim 1, is characterized in that, described extinction pipe is funnel-form, and one end size matches with probe, and other end size matches with collector lens.
3. a kind of directional ir inductive switch according to claim 1 and 2, is characterized in that, described extinction inside pipe wall is light absorbent.
4. a kind of directional ir inductive switch according to claim 1, is characterized in that, described probe detection sector width is 2mm, and collector lens focal length is 10mm, and induction angle is 2arc tan0.1.
5. a kind of directional ir inductive switch according to claim 1, is characterized in that, described extinction pipe one end is fixedly connected with collector lens, and described probe is provided with bearing, and the described extinction pipe other end is connected with bearing by rotating shaft.
6. a directional ir inductive switch, comprise pyroelectric infrared-sensing probe, it is characterized in that, also comprise 2～6 collector lenses, between described collector lens, by extinction sheet, be connected to form the collector lens group of a class sphere, the focus of each collector lens all drops on the detecting area of probe; Between described probe and collector lens group, be provided with for absorbing induction angle with the extinction pipe of UV light.
7. a kind of directional ir inductive switch according to claim 6, is characterized in that, described collector lens group induction angle sum is no more than 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372371.8U CN203933590U (en) | 2014-07-07 | 2014-07-07 | Directional ir inductive switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372371.8U CN203933590U (en) | 2014-07-07 | 2014-07-07 | Directional ir inductive switch |
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| Publication Number | Publication Date |
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| CN203933590U true CN203933590U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420372371.8U Expired - Fee Related CN203933590U (en) | 2014-07-07 | 2014-07-07 | Directional ir inductive switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637240A (en) * | 2015-02-11 | 2015-05-20 | 陈思倩 | Mobile internet-based intelligent prompting device and method for detecting whether quilt is turned over or not through infrared rays |
| WO2018161724A1 (en) * | 2017-03-09 | 2018-09-13 | 苏州欧普照明有限公司 | Pyroelectric infrared sensor-based lighting control device and system |
| CN114251820A (en) * | 2021-12-24 | 2022-03-29 | 珠海格力电器股份有限公司 | Detection device and air conditioner with same |
-
2014
- 2014-07-07 CN CN201420372371.8U patent/CN203933590U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637240A (en) * | 2015-02-11 | 2015-05-20 | 陈思倩 | Mobile internet-based intelligent prompting device and method for detecting whether quilt is turned over or not through infrared rays |
| WO2018161724A1 (en) * | 2017-03-09 | 2018-09-13 | 苏州欧普照明有限公司 | Pyroelectric infrared sensor-based lighting control device and system |
| US10980095B2 (en) | 2017-03-09 | 2021-04-13 | Opple Lighting Co., Ltd. | Pyroelectric infrared sensor based lighting control device and system |
| CN114251820A (en) * | 2021-12-24 | 2022-03-29 | 珠海格力电器股份有限公司 | Detection device and air conditioner with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Caiyuanba Zhen Sha Ba Cun Wei Xi Niu 513000 group of Guangdong city in Qingyuan Province, the city will Patentee after: Liu Dongni Address before: Zhen Sha Ba Cun Wei Xi Niu 513000 Guangdong city in Qingyuan Province, the city will face Caiyuanba group Patentee before: Liu Dongni |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20180707 |