CN204881863U - Pyroelectric sensor - Google Patents
Pyroelectric sensor Download PDFInfo
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- CN204881863U CN204881863U CN201520371215.4U CN201520371215U CN204881863U CN 204881863 U CN204881863 U CN 204881863U CN 201520371215 U CN201520371215 U CN 201520371215U CN 204881863 U CN204881863 U CN 204881863U
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- circuit board
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Abstract
The utility model discloses a pyroelectric sensor, including matched with pipe cap and tube socket, set up circuit board in the pipe cap, the chip is connected with circuit board electricity and induction element and grafting on the tube socket and with the electric several pin of being connected of circuit board, induction element sets up in circuit board one side towards the pipe cap, and the chip setting is in circuit board one side towards the tube socket. The utility model discloses a pyroelectric sensor, induction element and chip set up the not homonymy at the circuit board respectively, keep apart the heat radiation of chip, avoid leading to the fact the interference and leading to the fact the circumstances of wrong report induction element, improve the reliability and the efficiency of sensor.
Description
Technical field
The utility model relates to sensor technical field, particularly relates to a kind of pyroelectric sensor.
Background technology
Pyroelectric sensor is a kind of thermosensitive type sniffer according to pyroelectric effect design, can detect the change of infrared energy in a non contact fashion, converts this change to voltage signal and amplify output.In current pyroelectric sensor, sensing unit and chip are all arranged on circuit board side, and sensing unit easily disturbs by the heat radiation of chip, easily occur the situation of wrong report.In addition, current pyroelectric sensor can not bear larger mechanical impact force.
Utility model content
The technical problems to be solved in the utility model is, provides the pyroelectric sensor that a kind of reliability is high.
The utility model solves the technical scheme that its technical matters adopts: provide a kind of pyroelectric sensor, comprises the pipe cap and base, the circuit board be arranged in described pipe cap, the chip be electrically connected with described circuit board and sensing unit that match and is plugged on the several pins be electrically connected on described base and with described circuit board; Described sensing unit is arranged on the side of described circuit board towards described pipe cap, and described chip is arranged on the side of described circuit board towards described base.
Preferably, this pyroelectric sensor also comprises the high insulation spacer on described circuit board of described sensing unit support, and described insulation spacer is arranged between described sensing unit and described circuit board.
Preferably, this pyroelectric sensor also comprises the insulating supporting structure be arranged between described base and circuit board; Described circuit board is arranged in described supporting construction, and to make to form an accommodation space between described circuit board and described base, described chip is arranged in described accommodation space.
Preferably, described supporting construction comprises the insulation cavity pad be arranged on described base; One end of described pin is electrically connected with described circuit board through described base and insulation cavity pad successively.
Preferably, described insulation cavity pad comprises two arc pads, forms described accommodation space in the middle of the described arc pad after combination.
Preferably, described supporting construction comprises location division, and described location division is arranged on one end that described pin is plugged in described base, and described board support is on described location division, and the space between described location division forms described accommodation space.
Preferably, this pyroelectric sensor also comprises optical filter; Described pipe cap is provided with window away from the end face of described base, and described optical filter to be arranged in described window and relative with described sensing unit.
Preferably, described sensing unit comprises pyroelectricity sensing unit.
Preferably, described circuit board comprises substrate, arranges resistive element on the substrate and capacity cell, described resistive element, capacity cell and described sensing unit are all positioned at the side of described substrate towards described pipe cap, and described chip is positioned at the side of described substrate towards described base.
Preferably, described substrate is provided with the through hole of the described pin of several correspondence, and the described pin end, one end be plugged in described base is located in corresponding described through hole.
Pyroelectric sensor of the present utility model, sensing unit and chip are separately positioned on the not homonymy of circuit board, the heat radiation of chip are isolated, and avoid causing interference to sensing unit and causing the situation of wrong report, improve reliability and the efficiency of sensor.
In addition, by base arranges supporting construction, improve the physical strength of whole sensor, improve its anti-impact force.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the decomposition texture schematic diagram of the pyroelectric sensor of the utility model one embodiment.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, the pyroelectric sensor of the utility model one embodiment, comprises the pipe cap 1 and base 2 that match, is arranged on the circuit board 3 in pipe cap 1, chip 4 and sensing unit 5, and several pin 6; Chip 4 and sensing unit 5 are all electrically connected with circuit board 3, and several pin 6 to be plugged on base 2 and to be electrically connected with circuit board 3.Sensing unit 5 is arranged on the side of circuit board 3 towards pipe cap 1, chip 4 is arranged on the side of circuit board 3 towards base 2, thus sensing unit 5 and chip 4 are separated, make the heat radiation of chip 4 can not interfere with sensing unit 5, ensure the normal work of sensing unit 5, improve reliability and the efficiency of sensor.
Wherein, base 2 is connected at the bottom opening place of pipe cap 1, and by space-closed in pipe cap 1, circuit board 3, chip 4 and sensing unit 5 are all arranged in this space closed.Base 2 can be formed with step 21 on the surface of pipe cap 1, and the bottom snap of pipe cap 1 is in step 21 periphery, and circuit board 3 is positioned at above this step 21 in pipe cap 1.
Pipe cap 1 is provided with window 10 away from the end face of base 2, arranges wherein for optical filter 7.Accordingly, this pyroelectric sensor also comprises optical filter 7; Optical filter 7 to be arranged in window 10 and relative with sensing unit 5.Optical filter 7 can be infrared fileter.
Circuit board 3 can comprise substrate 31, arrange resistive element 32 on the substrate 31 and capacity cell 33, and this resistive element 32, capacity cell 33 and sensing unit 5 are all positioned at the side of substrate 31 towards pipe cap 1, and chip 4 is positioned at the side of substrate 31 towards base 2.In the present embodiment, sensing unit 5 is positioned at substrate 31 upper center position, and resistive element 32 and capacity cell 33 are positioned at the periphery of sensing unit 5 on the substrate 31.
Substrate 31 is provided with the through hole 30 of several corresponding pin 6, and through hole 30 is corresponding with pin 6 one by one.Pin 6 end, one end be plugged in base 2 is located in corresponding through hole 30.The end of pin 6 is connected with substrate 31 by welding manner.The other end being positioned at the pin 6 outside base 2 to base 2 extension, to be connected with outer member.
Chip 4 and sensing unit 5 lay respectively at the relative both sides of circuit board 3.This pyroelectric sensor also comprises insulation spacer 8, is supportted by sensing unit 5 high on circuit board 3, avoids sensing unit 5 directly to contact with circuit board 3, reduce chip 4 heat radiation further to the interference of sensing unit 5, and noise is to the interference of sensing unit 5.This insulation spacer 8 is arranged between sensing unit 5 and circuit board 3, and it is connected and fixed by viscose glue and sensing unit 5 and circuit board 3.In the present embodiment, sensing unit 5 comprises pyroelectricity sensing unit; Insulation spacer 8 adopts silicon spacer, and shape does not limit.Chip 4 can be ADC & MCU chip, highly integrated, can arrange corresponding pattern flexibly as required.
Further, this pyroelectric sensor also comprises the insulating supporting structure 9 be arranged between base 2 and circuit board 3.Circuit board 3 is arranged in supporting construction 9, and to make to form an accommodation space 90 between circuit board 3 and base 2, chip 4 is arranged in accommodation space 90, chip 4 can be avoided like this to be squeezed, strengthen the physical strength of whole sensor, improves anti-impact force.
As shown in Figure 1, in the present embodiment, supporting construction 9 comprises the insulation cavity pad 91 be arranged on base 2; One end of pin 6 is electrically connected with circuit board 3 through base 2 and insulation cavity pad 91 successively.Insulation cavity pad 91 is provided with hole and passes for one end of pin 6.
This insulation cavity pad 91 can comprise two arc pads, is formed for the accommodating accommodation space 90 of chip 4 in the middle of the arc pad after combination.Should be understood that insulation cavity pad 91 also can be opening or closed annular gasket or other shapes, formed in the middle of annular gasket for the accommodating accommodation space of chip 4.Insulation cavity pad 91 cements on base 2 by viscose glue.
Understandably, in other embodiments, supporting construction 9 can comprise location division, and location division is arranged on one end that pin 6 is plugged in base 2, and circuit board 3 is supported on location division.Space between location division on several pin is formed for the accommodating accommodation space 90 of chip 4.Chip 4 in accommodation space 90 unsettled in base 2 above, avoid chip 4 contact with base 2 and be easily squeezed.
The set-up mode of location division does not limit, and is arranged on the projection etc. at the ring-shaped step on pin 6, several interval as protruded, as long as circuit board 3 to be supported on above base 2 and to have interval between the two to be formed for the accommodating accommodation space of chip 4.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a pyroelectric sensor, comprises the pipe cap (1) and base (2), the circuit board (3) be arranged in described pipe cap (1), the chip (4) be electrically connected with described circuit board (3) and sensing unit (5) that match and is plugged on the upper and several pins (6) be electrically connected with described circuit board (3) of described base (2); It is characterized in that, described sensing unit (5) is arranged on the side of described circuit board (3) towards described pipe cap (1), and described chip (4) is arranged on the side of described circuit board (3) towards described base (2).
2. pyroelectric sensor according to claim 1, it is characterized in that, this pyroelectric sensor also comprises described sensing unit (5) is supportted high insulation spacer (8) on described circuit board (3), and described insulation spacer (8) is arranged between described sensing unit (5) and described circuit board (3).
3. pyroelectric sensor according to claim 1, is characterized in that, this pyroelectric sensor also comprises the insulating supporting structure (9) be arranged between described base (2) and circuit board (3); Described circuit board (3) is arranged in described supporting construction (9), and to make to form an accommodation space (90) between described circuit board (3) and described base (2), described chip (4) is arranged in described accommodation space (90).
4. pyroelectric sensor according to claim 3, is characterized in that, described supporting construction (9) comprises the insulation cavity pad (91) be arranged on described base (2); One end of described pin (6) is electrically connected with described circuit board (3) through described base (2) and insulation cavity pad (91) successively.
5. pyroelectric sensor according to claim 4, is characterized in that, described insulation cavity pad (91) comprises two arc pads, forms described accommodation space (90) in the middle of the described arc pad after combination.
6. pyroelectric sensor according to claim 3, it is characterized in that, described supporting construction (9) comprises location division, described location division is arranged on one end that described pin (6) is plugged in described base (2), described circuit board (3) is supported on described location division, and the space between described location division forms described accommodation space (90).
7. the pyroelectric sensor according to any one of claim 1-6, is characterized in that, this pyroelectric sensor also comprises optical filter (7); Described pipe cap (1) is provided with window (10) away from the end face of described base (2), and described optical filter (7) to be arranged in described window (10) and relative with described sensing unit (5).
8. the pyroelectric sensor according to any one of claim 1-6, is characterized in that, described sensing unit (5) comprises pyroelectricity sensing unit.
9. the pyroelectric sensor according to any one of claim 1-6, it is characterized in that, described circuit board (3) comprises substrate (31), be arranged on resistive element (32) on described substrate (31) and capacity cell (33), described resistive element (32), capacity cell (33) and described sensing unit (5) are all positioned at the side of described substrate (31) towards described pipe cap (1), and described chip (4) is positioned at the side of described substrate (31) towards described base (2).
10. pyroelectric sensor according to claim 9, it is characterized in that, described substrate (31) is provided with the through hole (30) of the described pin of several correspondence (6), and described pin (6) end, one end be plugged in described base (2) is located in corresponding described through hole (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371215.4U CN204881863U (en) | 2015-06-02 | 2015-06-02 | Pyroelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371215.4U CN204881863U (en) | 2015-06-02 | 2015-06-02 | Pyroelectric sensor |
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| Publication Number | Publication Date |
|---|---|
| CN204881863U true CN204881863U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520371215.4U Active CN204881863U (en) | 2015-06-02 | 2015-06-02 | Pyroelectric sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917201A (en) * | 2015-06-02 | 2016-08-31 | 东莞传晟光电有限公司 | Pyroelectric sensor |
| CN106872051A (en) * | 2017-02-23 | 2017-06-20 | 深圳市美思先端电子有限公司 | A kind of human body infrared induction installation |
| CN108382935A (en) * | 2017-11-18 | 2018-08-10 | 凯中科技（福建）有限公司 | A kind of elevator intelligent monitoring system |
| CN108423500A (en) * | 2017-11-18 | 2018-08-21 | 凯中科技（福建）有限公司 | Intelligent elevator voice system |
| CN108801471A (en) * | 2018-08-16 | 2018-11-13 | 张�浩 | A kind of pyroelectric sensor |
-
2015
- 2015-06-02 CN CN201520371215.4U patent/CN204881863U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917201A (en) * | 2015-06-02 | 2016-08-31 | 东莞传晟光电有限公司 | Pyroelectric sensor |
| CN106872051A (en) * | 2017-02-23 | 2017-06-20 | 深圳市美思先端电子有限公司 | A kind of human body infrared induction installation |
| CN106872051B (en) * | 2017-02-23 | 2023-12-19 | 深圳市美思先端电子有限公司 | Human body infrared induction device |
| CN108382935A (en) * | 2017-11-18 | 2018-08-10 | 凯中科技（福建）有限公司 | A kind of elevator intelligent monitoring system |
| CN108423500A (en) * | 2017-11-18 | 2018-08-21 | 凯中科技（福建）有限公司 | Intelligent elevator voice system |
| CN108801471A (en) * | 2018-08-16 | 2018-11-13 | 张�浩 | A kind of pyroelectric sensor |
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| Date | Code | Title | Description |
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| 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: 20160420 Address after: 523651, Guangdong Province, Dongguan City, Qingxi Town, three village, 263 Feng Ching Road on the third floor of the factory Patentee after: DONGGUAN TRANESEN PHOTOELECTRIC CO., LTD. Address before: 518034 Futian District, Shenzhen, Hong Li West Road, Luban building, district 24D1, 2, Patentee before: Shenzhen Tong Gan Microtronics A/S |