KR20160015149A - Photoelectric sensor - Google Patents
Photoelectric sensor Download PDFInfo
- Publication number
- KR20160015149A KR20160015149A KR1020150068784A KR20150068784A KR20160015149A KR 20160015149 A KR20160015149 A KR 20160015149A KR 1020150068784 A KR1020150068784 A KR 1020150068784A KR 20150068784 A KR20150068784 A KR 20150068784A KR 20160015149 A KR20160015149 A KR 20160015149A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- substrate cover
- cover
- case
- circuit
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 229920005992 thermoplastic resin Polymers 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims 5
- 229920001707 polybutylene terephthalate Polymers 0.000 description 8
- 239000004417 polycarbonate Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
Abstract
Description
The present invention relates to a photoelectric sensor.
The photoelectric sensor is provided so that the transparent portion and the light receiving portion are opposed to each other and can detect the object to be detected when the detection light such as infrared ray output from the transparent portion to the light receiving portion is blocked by the object to be detected.
A control circuit for controlling the output operation of the detection light from the light projecting unit and a control circuit for controlling the output operation of the detection light from the light projecting unit and the light receiving unit, And outputs the detection signal to a control system that performs position control or the like of the to-be-detected portion. There is also a photoelectric sensor in which an indicator lamp is turned on when a detected object is detected.
Patent Document 1 discloses a photosensor having a display lamp in an amp portion and a lamp window in a case accommodating the amplifier portion.
(Patent Document 1) JP Publication No. 11-145505
In the photo sensor disclosed in Patent Document 1, it is possible to visually check whether or not the indicator lamp is turned on from the indicator light window provided in the case. However, it is possible to visually confirm that the indicator lamp is turned on almost only at the front of the indicator light window. Therefore, there is a problem that it is difficult to confirm whether or not the indicator lamp is turned on.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a photoelectric sensor capable of easily recognizing lighting of an indicator lamp.
A photoelectric sensor for solving the above-described problem is provided with a light-emitting element and a light-receiving element for detecting an object to be detected, and a control circuit for outputting a detection signal when detecting the object to be detected based on the operation of the light- 1. A photoelectric sensor comprising a circuit board and an indicator lamp provided on a circuit element mounting surface of the circuit board, the light sensor being provided on an upper surface of the case and extending upward so as to oppose the light- A substrate cover which is exposed on the surface of the case and covers the circuit element mounting surface and transmits visible light output from the indicator lamp; and a space secured between the substrate cover and the circuit element mounting surface.
With this configuration, the entire surface of the substrate cover at the time of lighting of the indicator becomes brighter.
It is preferable that the photoelectric sensor further includes a scattered light generating unit for scattering the visible light on the substrate cover.
With this configuration, since the visible light output from the indicator is scattered by the scattered light generator, the entire surface of the substrate cover becomes brighter when the indicator lamp is turned on.
In the photoelectric sensor, a frame member holding the light emitting element, the light receiving element, and the circuit board respectively, a cover member integrally molding the substrate cover while covering the frame member, The cover member, and the case are preferably formed of a thermoplastic resin.
With this configuration, the interface between the case and the frame member and the cover member is melted to improve water tightness.
In the photoelectric sensor, it is preferable that the scattered light generating portion is a plurality of irregularities provided on a surface of the substrate cover facing the circuit element mounting surface.
This configuration produces scattered light in many irregularities.
In the photoelectric sensor, it is preferable that the irregularities are irregularities having a wavy shape in cross section provided along the long side direction of the substrate cover.
With this configuration, scattered light is generated in the irregularities whose cross-section is wavy.
In the photoelectric sensor, it is preferable that the case is formed so as to cover the cover member while exposing the upper surface and the side surface of the substrate cover.
With this configuration, the upper surface and the side surface of the substrate cover become brighter when the indicator lights.
According to the photoelectric sensor of the present invention, the lighting of the indicator can be easily recognized.
1 is a perspective view showing a photoelectric sensor.
2 is a perspective view showing a main part of the photoelectric sensor.
3 is a perspective view showing the cover member.
4 is a perspective view showing the cover member.
5 is a perspective view showing a state in which the cover member is attached to a main portion;
6 is a perspective view showing a state in which the cover member is attached to the main part.
7 is a front view showing a state in which a cover member is attached to a main part.
8 is a sectional view showing a state in which the cover member is attached to a main portion.
9 is a sectional view showing the substrate cover.
Hereinafter, one embodiment of the photoelectric sensor will be described with reference to the drawings. The photoelectric sensor shown in Fig. 1 has an
On the upper surface of the case 1, the light projecting portion 4 and the
Next, the main parts of the light receiving sensor accommodated in the case 1 will be described.
The main portion M shown in Fig. 2 is formed by molding a resin frame with PBT for each of the
On the
A light-
In the state that the light transmitting
The reinforcing
3 shows a
A
As shown in Fig. 4, on the back surface of the
When the
A
The
Next, the operation of the photoelectric sensor constructed as described above will be described.
In the photoelectric sensor, the
Since the case 1, the
A
In the installation apparatus, when the object to be detected passes between the transparent portion 4 and the
When the
In the photoelectric sensor as described above, the following effects can be obtained.
(1) The
(2) The case 1 can be formed in a state in which the
(3) Since the
(4) The visible light output from the
(5) Since the frame covers 20 and 21 are formed of a black PC, reception of visible light by the light receiving element 8 of the light
(6) Since the
The above embodiment may be modified as follows.
The
O The
1 case
6 circuit boards
7 floodlight element
8 Light receiving element
9 frame member (base member)
11 Frame member (light emitting element frame)
12 Frame member (light receiving element frame)
14 terminal member
15a to 15d terminals
16a to 16d wiring
17 coating member
18 cover member
19 substrate cover
23 unevenness
24 spaces
Claims (6)
A circuit board mounted with a control circuit for outputting a detection signal when detecting the object to be detected based on the operation of the light-emitting element and the light-receiving element, and
A display lamp provided on the circuit element mounting surface of the circuit board
As a photoelectric sensor,
And a photoelectric sensor provided on the upper surface of the case so as to extend upward to oppose the light-transmitting element and the light-receiving element at predetermined intervals,
A substrate cover which is exposed on the surface of the case and covers the circuit element mounting surface and transmits visible light output from the indicator lamp,
And a space secured between the substrate cover and the circuit element mounting surface.
Wherein the substrate cover is provided with a scattered light generating unit for scattering the visible light.
A frame member holding the light-emitting element, the light-receiving element, and the circuit board,
A cover member covering the frame member and integrally molding the substrate cover, and
The frame member and the cover member,
And,
Wherein the frame member, the cover member, and the case are formed of a thermoplastic resin.
Wherein the scattered light generating unit is a plurality of irregularities provided on a surface of the substrate cover facing the circuit element mounting surface.
Wherein the concavities and convexities are irregularly formed in a wavy shape in cross section provided along a long side direction of the substrate cover.
Wherein the case is formed so as to cover the cover member with the top and side surfaces of the substrate cover exposed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014155047A JP6349189B2 (en) | 2014-07-30 | 2014-07-30 | Photoelectric sensor |
| JPJP-P-2014-155047 | 2014-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160015149A true KR20160015149A (en) | 2016-02-12 |
Family
ID=53965971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150068784A KR20160015149A (en) | 2014-07-30 | 2015-05-18 | Photoelectric sensor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6349189B2 (en) |
| KR (1) | KR20160015149A (en) |
| CN (1) | CN204613423U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6774920B2 (en) * | 2017-09-27 | 2020-10-28 | 株式会社キーエンス | Photoelectric switch and sensor unit |
| CN109435146B (en) * | 2018-12-31 | 2023-04-25 | 欣灵电气股份有限公司 | Photoelectric switch and production process thereof and corresponding production die |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6345723A (en) * | 1986-08-13 | 1988-02-26 | 株式会社日立製作所 | Call register for elevator |
| JPH11216227A (en) * | 1998-02-02 | 1999-08-10 | Sanyo Bussan Kk | Display device of game machine |
-
2014
- 2014-07-30 JP JP2014155047A patent/JP6349189B2/en active Active
-
2015
- 2015-05-18 KR KR1020150068784A patent/KR20160015149A/en not_active Application Discontinuation
- 2015-05-19 CN CN201520325428.3U patent/CN204613423U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6349189B2 (en) | 2018-06-27 |
| JP2016031904A (en) | 2016-03-07 |
| CN204613423U (en) | 2015-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application | ||
| J201 | Request for trial against refusal decision | ||
| J301 | Trial decision |
Free format text: TRIAL NUMBER: 2016101006838; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20161201 Effective date: 20181002 |