JP2001057132A - Device for detecting opening and closing of cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for detecting opening and closing of cover capable of lowering the cost, while simplifying the structure thereof with a small number of parts items, and capable of surely detecting opening and closing condition of a cover. SOLUTION: This device for detecting the opening and closing of cover detects the opening and closing condition of a cover 6 to be opened and closed in relation to a main body part 2 of an equipment body 1. This detecting device is provided with two contact points 4, 5 provided in parallel with each other on a board 3 arranged inside of the main body part 2, a plate spring 7 provided in a lower surface side of the cover 6 and for simultaneously abutting on the two contact points 4, 5 when the cover 6 is closed, and a microcomputer 8 connected to the plate spring 7 or either of the two contact points 4, 5 and for detecting opening and closing of the cover 6, while detecting a change of voltage value when the cover 6 is closed and the plate spring 7 is brought in contact with the two contact points 4, 5.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、筐体の本体部に対
して開閉する蓋の開閉状態を検出するようにした蓋開閉
検出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid opening / closing detecting device for detecting the open / closed state of a lid that opens and closes with respect to a main body of a housing.

【０００２】[0002]

【従来の技術】従来、この種の蓋開閉検出装置は、例え
ば、筐体の本体部に配設された基板上にマイクロプッシ
ュスイッチを設け、このマイクロプッシュスイッチにア
クチェータを付けて、このアクチェータを蓋の一部で押
してこのスイッチをＯＮ・ＯＦＦすることによって、蓋
の開閉状態を検知するようになっていた。ところが、こ
の従来の蓋開閉検出装置では、部品点数が多くて構造が
複雑であり、コスト高になるという問題があった。2. Description of the Related Art Conventionally, this type of lid opening / closing detecting device is provided with a micro push switch on a substrate provided on a main body of a housing, and attaches an actuator to the micro push switch. When the switch is turned ON / OFF by pressing with a part of the lid, the open / closed state of the lid is detected. However, this conventional lid opening / closing detection device has a problem that the number of parts is large, the structure is complicated, and the cost is high.

【０００３】また、実公昭６１−１４３９４号公報に
は、電子制御洗濯機の安全スイッチが記載されている。
これは、図４、図５（ａ）（ｂ）に示すように、リーフ
スイッチ１３２の取付ベース１３４の一端に回動自在に
係止され、他端は蓋１２７の開閉に応じて上下に動く蓋
レバー１２９と、蓋レバー１２９に回動自在に係止され
てリーフスイッチ１３２の押圧子１３８と直接当接する
突出部１３７を有する安全レバー１２４と、取付ベース
１３４と安全レバー１２４に介挿されたばね１３５と、
蓋レバー１２９と安全レバー１２４間に介挿されたばね
１３６およびリーフスイッチ１３２からなる安全スイッ
チにおいて、安全レバー１２４上の突出部１３７が、リ
ーフスイッチ１３２の押圧子１３８と当接する水平面１
４５と傾斜面１４６よりなり、安全レバー１２４が回動
するとリーフスイッチ１３２の押圧子１３８を摺動しな
がら上下動するものである。ところがこれにおいては、
部品点数が多く、構造が複雑で、コスト高になるという
問題があった。Further, Japanese Utility Model Publication No. 61-14394 discloses a safety switch of an electronically controlled washing machine.
This is rotatably locked to one end of the mounting base 134 of the leaf switch 132, and the other end moves up and down according to the opening and closing of the lid 127, as shown in FIGS. 4, 5A and 5B. A cover lever 129, a safety lever 124 that is rotatably locked to the cover lever 129 and has a protrusion 137 that directly contacts the presser 138 of the leaf switch 132, and a spring inserted between the mounting base 134 and the safety lever 124. 135,
In the safety switch including the spring 136 and the leaf switch 132 interposed between the lid lever 129 and the safety lever 124, the protrusion 137 on the safety lever 124 contacts the pressing surface 138 of the leaf switch 132 with the horizontal plane 1.
45 and an inclined surface 146. When the safety lever 124 rotates, it moves up and down while sliding the presser 138 of the leaf switch 132. However, in this,
There were problems that the number of parts was large, the structure was complicated, and the cost was high.

【０００４】[0004]

【発明が解決しようとする課題】本発明は、上記従来の
問題を解消し、部品点数が少なくて構造が簡単であり、
コストの軽減を図ることができ、しかも、蓋の開閉状態
を確実に検出することができる蓋開閉検出装置を提供す
ることを目的としている。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and has a simple structure with a small number of parts.
An object of the present invention is to provide a lid opening / closing detection device that can reduce the cost and can reliably detect the lid opening / closing state.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するため
に、請求項１に記載の発明は、筐体の本体部に対して開
閉する蓋の開閉状態を検出するようにした蓋開閉検出装
置であって、前記本体部内に配置された基板上に並べて
設けられた２つの接点と、前記蓋の下面側に設けられ、
前記蓋を閉じた時に前記２つの接点に同時に当接する板
バネと、前記板バネ又は前記２つの接点のいずれか一方
に接続され、前記蓋を閉じた時に、前記板バネが前記２
つの接点に接して、このときの電圧値の変化を検知する
ことによって、前記蓋の開閉を検出するマイコンとを備
えたことを特徴としている。In order to achieve the above object, a first aspect of the present invention is a lid opening / closing detecting device which detects an open / closed state of a lid which is opened / closed with respect to a main body of a housing. And two contacts provided side by side on a substrate arranged in the main body, and provided on the lower surface side of the lid,
A leaf spring that simultaneously contacts the two contacts when the lid is closed, and is connected to one of the leaf spring or the two contacts, and when the lid is closed, the leaf spring is
And a microcomputer that detects opening and closing of the lid by detecting a change in the voltage value at this time in contact with the two contact points.

【０００６】請求項２に記載の発明は、前記２つの接点
を有する回路の一方側の配線をマイコンに接続し、この
配線の途中に電源を接続して、他方の配線をアースに接
続し、前記蓋を開いた状態のときに、前記電源からのｈ
ｉｇｈの電圧を前記マイコンで検出し、前記蓋を閉じた
ときに、前記電源から前記接点と板バネとを流れて前記
アースに落して前記マイコンでｌｏｗの電圧を検出する
ことによって、前記蓋の開閉状態を検出するように構成
したことを特徴としている。請求項３に記載の発明は、
前記板バネが前記蓋を閉じる時の緩衝として使われるこ
とを特徴としている。According to a second aspect of the present invention, one side of the circuit having the two contacts is connected to a microcomputer, a power supply is connected in the middle of the wiring, and the other side is connected to ground. When the lid is open, h
The microcomputer detects a high voltage, and when the lid is closed, the power supply flows through the contact point and the leaf spring from the power source, falls to the ground, and detects a low voltage by the microcomputer, thereby detecting the low voltage of the lid. It is characterized in that it is configured to detect the open / closed state. The invention according to claim 3 is
The leaf spring is used as a buffer when closing the lid.

【０００７】[0007]

【発明の実施の形態】以下、本発明に係る蓋開閉検出装
置の実施の形態について、図を参照しつつ説明する。図
１は本発明の実施形態の蓋開閉検出装置を備えた筐体を
示し、（ａ）はその蓋を開けた状態の斜視図、（ｂ）は
その蓋を閉めて板バネによって２つの接点が接続されて
いる状態を示す斜視図、図２は板バネと２つの接点が接
している状態を示す部分正面図、図３は実施形態の蓋開
閉検出装置の回路図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a lid opening / closing detecting device according to the present invention will be described below with reference to the drawings. FIGS. 1A and 1B show a housing provided with a lid open / close detection device according to an embodiment of the present invention. FIG. 1A is a perspective view showing a state where the lid is opened, and FIG. FIG. 2 is a partial front view showing a state in which a leaf spring and two contacts are in contact with each other, and FIG. 3 is a circuit diagram of the lid opening / closing detection device of the embodiment.

【０００８】本実施形態の蓋開閉検出装置は、図１、図
２に示すように、筐体１の本体部２内に配置された基板
３上に並べて設けられた２つの接点４、５と、蓋６の下
面側に設けられ、蓋６を閉じた時に２つの接点４、５に
同時に当接する板バネ７と、板バネ７又は２つの接点
４、５のいずれか一方に接続され、蓋６を閉じた時に、
板バネ７が２つの接点４、５に接して、このときの電圧
値の変化を検知することによって、蓋６の開閉を検出す
るマイコン８（図３参照）とから構成されている。As shown in FIGS. 1 and 2, the lid opening / closing detecting device according to the present embodiment includes two contacts 4 and 5 provided side by side on a substrate 3 disposed in a main body 2 of a housing 1. A leaf spring 7 provided on the lower surface side of the lid 6 and simultaneously contacting the two contacts 4 and 5 when the lid 6 is closed, and connected to one of the leaf spring 7 and the two contacts 4 and 5, When you close 6,
A leaf spring 7 comes into contact with the two contacts 4 and 5, and a microcomputer 8 (see FIG. 3) that detects the opening and closing of the lid 6 by detecting a change in the voltage value at this time.

【０００９】そして、図３に示すように、２つの接点
４、５を有する回路の一方側の配線９をマイコン８に接
続し、この配線９の途中に電源１０を接続して、他方の
配線１１をアース１２に接続し、蓋６を開いた状態のと
きに、電源１０からの例えば５ボルトのｈｉｇｈの電圧
をマイコン８で検出し、蓋６を閉じたときに、電源１０
から接点４、５と板バネ７とを流れてアース１２に落し
てマイコン８で例えば０ボルトのｌｏｗの電圧を検出す
ることによって、蓋６の開閉状態を検出するように構成
している。また、板バネ７は、蓋６を閉じる時の緩衝と
なっている。As shown in FIG. 3, a wiring 9 on one side of a circuit having two contacts 4 and 5 is connected to a microcomputer 8, a power supply 10 is connected in the middle of the wiring 9, and the other wiring is connected. 11 is connected to the ground 12, and when the lid 6 is open, a high voltage of, for example, 5 volts from the power supply 10 is detected by the microcomputer 8, and when the lid 6 is closed, the power supply 10
Then, the open / close state of the lid 6 is detected by flowing through the contacts 4 and 5 and the leaf spring 7 to the ground 12 and detecting a low voltage of, for example, 0 volt by the microcomputer 8. The leaf spring 7 serves as a buffer when the lid 6 is closed.

【００１０】従って、蓋６の開閉状態を確実に検出する
ことができ、しかも、蓋６に板バネ７を付加するだけで
よいので、部品点数が少なくて構造が簡単であり、コス
トの軽減を図ることができる。また、板バネ７が、蓋６
を開閉するときの緩衝材となるので、蓋６と本体部２が
衝撃をもって当接することがなく、蓋６と本体部２を保
護することができる。Therefore, the open / closed state of the lid 6 can be reliably detected, and the leaf spring 7 only needs to be added to the lid 6, so that the number of parts is small, the structure is simple, and the cost is reduced. Can be planned. Also, the leaf spring 7 is
Is used as a cushioning material when opening and closing, so that the lid 6 and the main body 2 do not come into contact with each other with an impact, and the lid 6 and the main body 2 can be protected.

【００１１】[0011]

【発明の効果】以上説明したように、請求項１に記載の
発明によれば、蓋の下面側に板バネを設け、蓋を閉めた
ときに、本体部内に配置された基板上の２つの接点に、
蓋の下面側の板バネを当接し、このときの電圧値の変化
を検知することによって、蓋の開閉をマイコンで検出す
るようにしたので、蓋の開閉状態を確実に検出すること
ができ、しかも、蓋に板バネを付加するだけでよいの
で、部品点数が少なくて構造が簡単であり、コストの軽
減を図ることができる。As described above, according to the first aspect of the present invention, the leaf spring is provided on the lower surface side of the lid, and when the lid is closed, the two At the contact point,
By contacting the leaf spring on the lower surface side of the lid and detecting the change in the voltage value at this time, the opening and closing of the lid is detected by the microcomputer, so that the opening and closing state of the lid can be reliably detected, In addition, since it is only necessary to add a leaf spring to the lid, the number of parts is small, the structure is simple, and the cost can be reduced.

【００１２】請求項２に記載の発明によれば、２つの接
点を有する回路の一方側の配線をマイコンに接続し、こ
の配線の途中に電源を接続して、他方の配線をアースに
接続し、蓋を開いた状態のときに、電源からのｈｉｇｈ
の電圧をマイコンで検出し、蓋を閉じたときに、電源か
ら接点と板バネとを流れてアースに落してマイコンでｌ
ｏｗの電圧を検出することによって、蓋の開閉状態を検
出するように構成したので、マイコンで検出された電圧
がｈｉｇｈの状態であるか、ｌｏｗの状態であるかを見
るだけで、蓋の開閉状態を容易且つ確実に知ることがで
きる。According to the second aspect of the present invention, the wiring on one side of the circuit having two contacts is connected to the microcomputer, the power supply is connected in the middle of the wiring, and the other wiring is connected to the ground. When the lid is open, high from the power supply
Microcomputer detects the voltage, and when the lid is closed, it flows through the contacts and the leaf spring from the power supply and drops to ground.
Since the open / close state of the lid is detected by detecting the voltage of ow, the microcomputer only checks whether the voltage detected by the microcomputer is in the high state or the low state, and the open / close state of the lid can be detected. The state can be known easily and reliably.

【００１３】請求項３に記載の発明によれば、板バネが
蓋を閉じるときの緩衝として使われているので、蓋と本
体部が衝撃をもって当接することがなく、蓋と本体部を
保護することができる。According to the third aspect of the present invention, since the leaf spring is used as a buffer when closing the lid, the lid and the main body do not come into contact with each other with an impact, and the lid and the main body are protected. be able to.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施形態の蓋開閉検出装置を備えた筐
体を示し、（ａ）はその蓋を開けた状態の斜視図、
（ｂ）はその蓋を閉めて板バネによって２つの接点が接
続されている状態を示す斜視図である。1A and 1B show a housing provided with a lid open / close detection device according to an embodiment of the present invention, and FIG.
(B) is a perspective view showing a state in which the lid is closed and two contacts are connected by a leaf spring.

【図２】板バネと２つの接点が接している状態を示す部
分正面図である。FIG. 2 is a partial front view showing a state where a leaf spring and two contact points are in contact with each other.

【図３】実施形態の蓋開閉検出装置の回路図である。FIG. 3 is a circuit diagram of a lid opening / closing detection device according to the embodiment.

【図４】従来の電子制御洗濯機の安全スイッチを示す縦
断面図である。FIG. 4 is a longitudinal sectional view showing a safety switch of a conventional electronically controlled washing machine.

【図５】従来の電子制御洗濯機の安全スイッチの動作状
態を示し、（ａ）は安全スイッチが開いた状態を示す部
分拡大断面図、（ｂ）は安全スイッチが閉じる直前の状
態を示す部分拡大断面図である。5A and 5B show an operation state of a safety switch of a conventional electronically controlled washing machine, FIG. 5A is a partially enlarged cross-sectional view showing a state where the safety switch is opened, and FIG. 5B is a part showing a state immediately before the safety switch is closed. It is an expanded sectional view.

【符号の説明】[Explanation of symbols]

１ 筐体 ２ 本体部 ３ 基板 ４、５ 接点 ６ 蓋 ７ 板バネ ８ マイコン ９ 配線 １０ 電源 １１ 配線 １２ アース DESCRIPTION OF SYMBOLS 1 Housing 2 Body part 3 Substrate 4, 5 Contact 6 Lid 7 Leaf spring 8 Microcomputer 9 Wiring 10 Power supply 11 Wiring 12 Ground

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 筐体の本体部に対して開閉する蓋の開閉
状態を検出するようにした蓋開閉検出装置であって、前
記本体部内に配置された基板上に並べて設けられた２つ
の接点と、前記蓋の下面側に設けられ、前記蓋を閉じた
時に前記２つの接点に同時に当接する板バネと、前記板
バネ又は前記２つの接点のいずれか一方に接続され、前
記蓋を閉じた時に、前記板バネが前記２つの接点に接し
て、このときの電圧値の変化を検知することによって、
前記蓋の開閉を検出するマイコンとを備えたことを特徴
とする蓋開閉検出装置。1. A lid opening / closing detecting device for detecting an open / closed state of a lid that opens and closes with respect to a main body of a housing, wherein two contact points provided side by side on a substrate disposed in the main body. And a leaf spring provided on the lower surface side of the lid, which is simultaneously connected to the two contacts when the lid is closed, and which is connected to one of the leaf spring or the two contacts to close the lid. Sometimes, the leaf spring contacts the two contacts and detects a change in the voltage value at this time,
A lid opening / closing detection device, comprising: a microcomputer configured to detect opening / closing of the lid. 【請求項２】 前記２つの接点を有する回路の一方側の
配線をマイコンに接続し、この配線の途中に電源を接続
して、他方の配線をアースに接続し、前記蓋を開いた状
態のときに、前記電源からのｈｉｇｈの電圧を前記マイ
コンで検出し、前記蓋を閉じたときに、前記電源から前
記接点と板バネとを流れて前記アースに落して前記マイ
コンでｌｏｗの電圧を検出することによって、前記蓋の
開閉状態を検出するように構成したことを特徴とする請
求項１に記載の蓋開閉検出装置。2. A circuit in which one side of the circuit having two contacts is connected to a microcomputer, a power supply is connected in the middle of the wiring, the other side is connected to ground, and the lid is opened. Sometimes, when the high voltage from the power supply is detected by the microcomputer, and when the lid is closed, the power supply flows through the contact point and the leaf spring to the ground, and the microcomputer detects the low voltage. The lid opening / closing detection device according to claim 1, wherein the lid opening / closing state is detected by detecting the open / closed state of the lid. 【請求項３】 前記板バネが前記蓋を閉じる時の緩衝と
して使われることを特徴とする請求項１又は２に記載の
蓋開閉検出装置。3. The lid opening / closing detecting device according to claim 1, wherein the leaf spring is used as a buffer when closing the lid.