JPH0168642U - - Google Patents
Info
- Publication number
- JPH0168642U JPH0168642U JP1987164206U JP16420687U JPH0168642U JP H0168642 U JPH0168642 U JP H0168642U JP 1987164206 U JP1987164206 U JP 1987164206U JP 16420687 U JP16420687 U JP 16420687U JP H0168642 U JPH0168642 U JP H0168642U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- receiving element
- light
- supply circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
第１図はこの考案にかかる光電スイツチが反射
型光電スイツチである場合の一実施例をあらわし
た断面図、第２図は第１基板と第２基板およびシ
ールド板の組み合わせを組立前においてあらわし
た側面図、第３図は第２図のＸ方向からみた矢視
図、第４図はその分解斜視図、第５図は第２図の
Ｙ方向からみた矢視図、第６図は第２図の―
線断面図、第７図はシールド板が第２基板の裏面
に当たつた構造とされた比較例をあらわした断面
図、第８図ないし第１０図は接着剤によるレンズ
の取付け構造についての従来例をあらわした断面
図、第１１図ないし第１４図はレンズ面に接着剤
が流れて付着しないようにした付加的な実施例を
あらわした断面図、第１５図は接着剤の注入口を
設けた付加的な実施例をあらわした断面図、第１
６図および第１７図は従来の処理回路およびスイ
ツチング電源回路の構成をあらわした側面図であ
る。
１……光電スイツチ、１ａ……スイツチケース
、５……受光素子、１５……第１基板、２１……
処理回路用の部品、２５……第２基板、２９……
スイツチング電源回路用の部品、３３……シール
ド板。
Fig. 1 is a sectional view showing an embodiment of the photoelectric switch according to this invention, which is a reflective photoelectric switch, and Fig. 2 shows the combination of the first board, the second board, and the shield plate before assembly. A side view, FIG. 3 is a view taken from the X direction of FIG. 2, FIG. 4 is an exploded perspective view thereof, FIG. 5 is a view taken from the Y direction of FIG. 2, and FIG. Figure -
7 is a cross-sectional view showing a comparative example in which the shield plate is in contact with the back surface of the second substrate, and FIGS. 8 to 10 are conventional views of the lens mounting structure using adhesive. 11 to 14 are cross-sectional views showing an additional embodiment in which the adhesive is prevented from flowing and adhering to the lens surface, and FIG. 15 is a cross-sectional view showing an example in which an adhesive injection port is provided. Cross-sectional view showing an additional embodiment, No. 1
6 and 17 are side views showing the configurations of conventional processing circuits and switching power supply circuits. DESCRIPTION OF SYMBOLS 1... Photoelectric switch, 1a... Switch case, 5... Light receiving element, 15... First board, 21...
Parts for processing circuit, 25... Second board, 29...
Components for switching power supply circuit, 33...shield plate.
Claims (1)
子で検出させて物体検知を行うようになつている
とともに、スイツチケース内の前記受光素子より
も背部に、同受光素子からの信号を処理する処理
回路と、スイツチング電源回路とを備えている光
電スイツチにおいて、前記処理回路が受光素子を
取付ける基板に配備され、かつ、前記スイツチン
グ電源回路が別基板に配備されているとともに、
これら両基板間にスイツチング電源回路からの輻
射ノイズの伝播を遮断するシールド板が配置され
ていることを特徴とする光電スイツチ。 (2) 処理回路用の基板とスイツチング電源回路
用の基板とが直交するように組み合わされ、シー
ルド板の端部が、スイツチング電源回路の基板に
形成された通孔を通して同基板の表裏両側方にわ
たるように配置されている実用新案登録請求の範
囲第１項に記載の光電スイツチ。[Claims for Utility Model Registration] (1) The switch is equipped with a light-receiving element, the light-receiving element detects incident light to detect an object, and the switch case is located behind the light-receiving element within the switch case. In a photoelectric switch that includes a processing circuit for processing signals from the light receiving element and a switching power supply circuit, the processing circuit is provided on a board on which the light receiving element is mounted, and the switching power supply circuit is provided on a separate board. At the same time,
A photoelectric switch characterized in that a shield plate is disposed between these two boards to block the propagation of radiation noise from the switching power supply circuit. (2) The substrate for the processing circuit and the substrate for the switching power supply circuit are assembled so as to be perpendicular to each other, and the ends of the shield plate extend through the through hole formed in the substrate of the switching power supply circuit to both the front and back sides of the same board. A photoelectric switch according to claim 1 of the utility model registration, which is arranged as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164206U JPH0168642U (en) | 1987-10-27 | 1987-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164206U JPH0168642U (en) | 1987-10-27 | 1987-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0168642U true JPH0168642U (en) | 1989-05-02 |
Family
ID=31449615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987164206U Pending JPH0168642U (en) | 1987-10-27 | 1987-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0168642U (en) |
-
1987
- 1987-10-27 JP JP1987164206U patent/JPH0168642U/ja active Pending
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