JPH0211826Y2 - - Google Patents
Info
- Publication number
- JPH0211826Y2 JPH0211826Y2 JP1604684U JP1604684U JPH0211826Y2 JP H0211826 Y2 JPH0211826 Y2 JP H0211826Y2 JP 1604684 U JP1604684 U JP 1604684U JP 1604684 U JP1604684 U JP 1604684U JP H0211826 Y2 JPH0211826 Y2 JP H0211826Y2
- Authority
- JP
- Japan
- Prior art keywords
- printed board
- bosses
- main printed
- sides
- casing
- 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.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【考案の詳細な説明】
本考案は、例えばシーケンスコントローラの如
く、多数のプリント板を内蔵した電子機器の筐体
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a housing for an electronic device, such as a sequence controller, which includes a large number of printed circuit boards.
例えばシーケンスコントローラにおいては、第
１図及び第２図に示すように、側壁に多数の通気
孔２を有する筐体１の底部にボス５を有するプリ
ント板取付台４を複数個設け、このボス５に対応
してメインプリント板１０に穴を貫設し、この穴
を各ボスに嵌合して座付ネジ６で固定する。そし
て、筐体１の内壁に設けたガイド７に沿つてそれ
ぞれサブプリント板（図示せず）を挿入し、メイ
ンプリント板１０に設けたコネクタ（図示せず）
に接続し、制御対象等に応じてサブプリント板を
適宜交換しうるようにしている。なお、この場
合、プリント板取付台４に設けたボス５の高さを
メインプリント板１０の厚さと同じか又は僅かに
低くし、メインプリント板１０を確実に固定しう
るようにしている。 For example, in a sequence controller, as shown in FIGS. 1 and 2, a plurality of printed board mounts 4 having bosses 5 are provided at the bottom of a housing 1 having a large number of ventilation holes 2 on the side wall. A hole is formed through the main printed board 10 corresponding to the above, and each boss is fitted into the hole and fixed with a seat screw 6. Then, sub printed boards (not shown) are inserted along the guides 7 provided on the inner wall of the housing 1, and connectors (not shown) provided on the main printed board 10 are inserted.
The sub-printed board can be replaced as needed depending on the object to be controlled. In this case, the height of the boss 5 provided on the printed board mount 4 is made equal to or slightly lower than the thickness of the main printed board 10, so that the main printed board 10 can be securely fixed.
ところで、このような電子機器の筐体は、製作
が容易であること、絶縁性に富んでいることなど
から、合成樹脂を成型したものが広く使用されて
いる。しかしながら、合成樹脂製の筐体は温度の
影響を受け易く、周囲温度が例えば80℃〜−20℃
の範囲で変化すると、筐体は長さ方向に約１％伸
縮する。一方、メインプリント板は温度の影響を
受けにくい材料で作られているため、これを筐体
のボスと嵌合してねじで固定すると、周囲温度が
変化しても筐体はメインプリント板に拘束されて
伸縮できない。このため、筐体が変形したり、サ
ブプリント板を挿入し難くなつたりすることがあ
り、場合によつては筐体が破損することもある。 By the way, casings of such electronic devices are widely used made of synthetic resin because they are easy to manufacture and have good insulation properties. However, synthetic resin casings are easily affected by temperature, such as when the ambient temperature is between 80°C and -20°C.
, the casing expands and contracts by about 1% in the length direction. On the other hand, the main printed board is made of a material that is not easily affected by temperature, so if it is fitted with the boss of the casing and fixed with screws, the casing will stay on the main printed board even if the ambient temperature changes. It is restricted and cannot expand or contract. As a result, the casing may be deformed, or it may become difficult to insert the sub-printed board, and in some cases, the casing may be damaged.
本考案は、上記のような従来の問題点を解決す
べくなされたもので、周囲温度が変化したとき
は、メインプリント板に拘束されることなく伸縮
できる電子機器用筐体を得ることを目的としたも
のである。 The present invention was made to solve the above-mentioned conventional problems, and the purpose is to obtain a housing for electronic equipment that can expand and contract without being constrained by the main printed board when the ambient temperature changes. That is.
本考案に係る電子機器用筐体は、上記の目的を
達成するため、合成樹脂製筐体の底部にプリント
板を取付けてなる機器において、前記筐体の底部
の長さ方向のほヾ中央部とその両側にそれぞれボ
スを有するプリント板の取付台を設けると共に、
前記プリント板に前記各ボスに嵌合する穴を設け
てそのうち少くとも前記両側のボスに嵌合する穴
を長穴とし、かつ前記プリント板の厚さｔと中央
部のボスの高さｈ及び両側のボスの高さh1との関
係をそれぞれｈ≦ｔ，h1＞ｔに選んだことを特徴
とするものである。以下図面を用いて本考案を説
明する。 In order to achieve the above-mentioned object, the housing for electronic equipment according to the present invention provides a housing made of synthetic resin, in which a printed board is attached to the bottom of the housing. and a printed board mounting stand having bosses on both sides thereof, and
The printed board is provided with holes that fit into each of the bosses, and at least the holes that fit into the bosses on both sides are elongated holes, and the thickness t of the printed board, the height h of the central boss, and It is characterized in that the relationship with the height h 1 of the bosses on both sides is selected such that h≦t and h 1 >t, respectively. The present invention will be explained below using the drawings.
第３図は本考案実施例の要部構成図である。１
４は筐体１の長さ方向のほゞ中央部に設けたプリ
ント板の取付台、１４ａ，１４ａはその長さ方向
の両側に設けたプリント板の取付台で、それぞれ
上面にボス１５，１５ａ，１５ａを備えている。
本考案においては、中央部のボス１５の高さｈを
メインプリント板１０の厚さｔと同じか又は低
く、また両側のボス１５ａ，１５ａの高さh1をメ
インプリント板１０の厚さｔより高くしたもので
ある。即ち、ｈ≦ｔ、h1＞ｔとしたもので、実施
例によれば、メインプリント板１０の厚さｔが
1.6mm、ボス１５の高さｈが1.5mm、ボス１５ａ，
１５ａの高さh1は1.9mmである。 FIG. 3 is a diagram showing the main part of the embodiment of the present invention. 1
Reference numeral 4 denotes a mounting base for a printed board provided approximately in the center of the length direction of the housing 1, and reference numerals 14a and 14a designate mounting bases for the printed board provided on both sides in the length direction, and bosses 15 and 15a are provided on the top surface, respectively. , 15a.
In the present invention, the height h of the central boss 15 is the same as or lower than the thickness t of the main printed board 10, and the height h1 of the bosses 15a, 15a on both sides is set to the thickness t of the main printed board 10. It is higher. That is, h≦t, h 1 >t, and according to the embodiment, the thickness t of the main printed board 10 is
1.6mm, height h of boss 15 is 1.5mm, boss 15a,
The height h 1 of 15a is 1.9 mm.
一方、メインプリント板１０には、第４図に示
すように、長さ方向のほぼ中央部にボス１５に嵌
合する通常の丸穴１１を、またその両側にはボス
１５ａ，１５ａに嵌合する長穴１１ａ，１１ａを
設けたものである。 On the other hand, as shown in FIG. 4, the main printed board 10 has an ordinary round hole 11 that fits into a boss 15 at approximately the center in the length direction, and bosses 15a on both sides of the hole 11 that fit into the boss 15. Elongated holes 11a, 11a are provided.
上記のように構成した本考案においては、第３
図に示すように各ボス１５，１５ａ，１５ａにメ
インプリント板１０の穴１１，１１ａ，１１ａを
嵌合して取付台１４，１４ａ，１４ａに載せたの
ち、各ボス１５，１５ａ，１５ａにそれぞれ座付
ねじ１６を螺入する。これにより、中央の取付台
１４にはメインプリント板１０の中央部が確実に
固定されるが、両側のボス１５ａ，１５ａに螺入
した座付ねじ１６とメインプリント板１０との間
には、h1−ｔの間〓が形成されて緩く取付けられ
る。このため、周囲温度の変化により筐体１が伸
縮しようとすると、ボス１５ａ，１５ａはメイン
プリント板１０の長穴１１ａ，１１ａ内で移動で
きるので、筐体１はメインプリント板１０に拘束
されることなく、自由に伸縮できる。 In the present invention configured as above, the third
As shown in the figure, after fitting the holes 11, 11a, 11a of the main printed board 10 into the respective bosses 15, 15a, 15a and placing it on the mounting bases 14, 14a, 14a, Screw in the seat screw 16. As a result, the central part of the main printed board 10 is securely fixed to the central mounting base 14, but there are h 1 −t is formed and loosely attached. Therefore, when the casing 1 tries to expand or contract due to a change in ambient temperature, the bosses 15a, 15a can move within the long holes 11a, 11a of the main printed board 10, so the casing 1 is restrained by the main printed board 10. It can be expanded and contracted freely.
上記の説明では、筐体及びメインプリント板の
一方の側に設けた取付台やボス及び丸穴や長穴に
ついて示したが、第２図からも明らかなように、
これらは筐体及びメインプリント板の両側に設け
られている。また、メインプリント板を座付ねじ
で取付台に取付けた場合を示したが、ウエーブね
じその他の手段により取付けてもよい。その他各
部の形状、寸法等も上記実施例に限定するもので
はなく、本考案の要旨を逸脱しない範囲で適宜変
更することができる。 In the above explanation, we have shown the mounting base, boss, round hole, and oblong hole provided on one side of the housing and main printed board, but as is clear from Fig. 2,
These are provided on both sides of the housing and the main printed board. Further, although the main printed board is attached to the mounting base using seat screws, it may be attached using wave screws or other means. The shapes, dimensions, etc. of other parts are not limited to the above embodiments, and can be changed as appropriate without departing from the gist of the present invention.
以上の説明から明らかなように、本考案によれ
ば、筐体はメインプリント板に拘束されることな
く、周囲温度の変化に応じて自由に伸縮できるの
で、筐体が変形したり破損したりするおそれがな
く、実用に供して効果大である。 As is clear from the above description, according to the present invention, the casing is not constrained by the main printed board and can freely expand and contract in response to changes in ambient temperature, so there is no possibility that the casing will be deformed or damaged. There is no risk of this happening, and it is highly effective in practical use.
第１図は従来の電子機器用筐体の一例の一部断
面図、第２図は一部を断面で示したその側面図、
第３図は本考案実施例の要部を示す一部断面図、
第４図はメインプリント板の要部の平面図であ
る。
１：筐体、１０：メインプリント板、１１：丸
穴、１１ａ：長穴、１４，１４ａ：取付台、１
５，１５ａ：ボス、１６：座付ねじ。
FIG. 1 is a partial cross-sectional view of an example of a conventional electronic device casing, and FIG. 2 is a side view thereof, partially shown in cross-section.
FIG. 3 is a partial sectional view showing the main parts of the embodiment of the present invention;
FIG. 4 is a plan view of the main parts of the main printed board. 1: Housing, 10: Main printed board, 11: Round hole, 11a: Long hole, 14, 14a: Mounting stand, 1
5, 15a: Boss, 16: Seat screw.
Claims (1)
なる機器において、前記筐体の底部の長さ方向の
ほヾ中央部とその両側にそれぞれボスを有するプ
リント板の取付台を設けると共に、前記プリント
板に前記各ボスに嵌合する穴を設けてそのうち少
くとも前記両側のボスに嵌合する穴を長穴とし、
かつ前記プリント板の厚さｔと中央部のボスの高
さｈ及び両側のボスの高さh1との関係をそれぞれ
ｈ≦ｔ，h1＞ｔに選んだことを特徴とする電子機
器用筐体。 In a device in which a printed board is attached to the bottom of a synthetic resin casing, a mounting base for the printed board having bosses is provided at approximately the center in the longitudinal direction of the bottom of the casing and on both sides thereof, and Provided in the plate are holes that fit into each of the bosses, and at least the holes that fit into the bosses on both sides are elongated holes;
and the relationship between the thickness t of the printed board and the height h of the central boss and the height h 1 of the bosses on both sides is selected such that h≦t and h 1 >t, respectively. Housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1604684U JPS60129183U (en) | 1984-02-09 | 1984-02-09 | Housing for electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1604684U JPS60129183U (en) | 1984-02-09 | 1984-02-09 | Housing for electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60129183U JPS60129183U (en) | 1985-08-30 |
| JPH0211826Y2 true JPH0211826Y2 (en) | 1990-04-03 |
Family
ID=30502445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1604684U Granted JPS60129183U (en) | 1984-02-09 | 1984-02-09 | Housing for electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129183U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6076217B2 (en) * | 2013-07-17 | 2017-02-08 | 三菱電機株式会社 | Substrate fixing structure and electronic device to which the substrate fixing structure is applied |
-
1984
- 1984-02-09 JP JP1604684U patent/JPS60129183U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60129183U (en) | 1985-08-30 |
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