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JP7007307B2 - washing machine - Google Patents
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JP7007307B2 - washing machine - Google Patents

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Publication number
JP7007307B2
JP7007307B2 JP2019001553A JP2019001553A JP7007307B2 JP 7007307 B2 JP7007307 B2 JP 7007307B2 JP 2019001553 A JP2019001553 A JP 2019001553A JP 2019001553 A JP2019001553 A JP 2019001553A JP 7007307 B2 JP7007307 B2 JP 7007307B2
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operation panel
washing machine
circuit board
led
outer lid
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JP2020110245A (en
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義徳 宗野
拓也 小山
丈 曽我
一秀 糸澤
真吾 長谷川
慎介 葛島
友太 佐藤
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Hitachi Global Life Solutions Inc
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Hitachi Global Life Solutions Inc
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Description

本発明は、衣類等の洗濯を行う洗濯機に関する。 The present invention relates to a washing machine for washing clothes and the like.

洗濯機においては、洗濯機の運転に関する設定操作や表示を行う操作パネルが設けられる。その操作パネルの裏側には、操作パネル表面に印刷されている表示面の視認性を向上させるためのＬＥＤのような発光素子が複数配設されている回路基板が具備されており、操作パネルの操作内容によりＬＥＤが各々点灯するものである。また、回路基板には水気浸入による絶縁不良を防止するため充填剤を充填するポッティング処理を施している（特許文献１）。 The washing machine is provided with an operation panel for setting operations and displaying the operation of the washing machine. The back side of the operation panel is provided with a circuit board in which a plurality of light emitting elements such as LEDs for improving the visibility of the display surface printed on the surface of the operation panel are arranged. Each LED lights up depending on the operation content. Further, the circuit board is subjected to a potting process of filling with a filler in order to prevent insulation failure due to infiltration of water (Patent Document 1).

特開２０１５－８３０６３号公報Japanese Unexamined Patent Publication No. 2015-83063

しかしながら、ポッティング処理を施した場合、高さ寸法が低い（例えば３mm以下）のＬＥＤでは、その表面が充填剤に覆われてしまい、ＬＥＤの出射光が充填剤に遮られて操作パネルの表示面輝度が下がってしまう恐れがある。そのため、リードフレームを持たない比較的安価で輝度が高い表面実装型(チップ型)ＬＥＤを使用することができなかった。一方で従来の砲弾型ＬＥＤでは輝度が低く表示面の視認性が悪いという問題もあった。 However, when the potting process is applied, the surface of the LED having a low height dimension (for example, 3 mm or less) is covered with the filler, and the emitted light of the LED is blocked by the filler and the display surface of the operation panel. There is a risk that the brightness will decrease. Therefore, it has not been possible to use a surface mount type (chip type) LED that does not have a lead frame and is relatively inexpensive and has high brightness. On the other hand, the conventional bullet-shaped LED has a problem that the brightness is low and the visibility of the display surface is poor.

そこで、本発明では、比較的安価で輝度が高い発光素子を用いても操作パネルの表示面輝度の低下を抑止可能な洗濯機を提供することを目的とする。 Therefore, an object of the present invention is to provide a washing machine capable of suppressing a decrease in the brightness of the display surface of the operation panel even if a light emitting element having a relatively low cost and a high brightness is used.

このような課題を解決するために本発明の洗濯機は、筐体と、筐体上部に設けた外蓋と、外蓋に設けた操作パネルと、を有し、操作パネルは、回路基板と、外蓋と回路基板との間に設けられ、回路基板の上面に接触する溝穴を有する導光板と、溝穴に配置された発光素子と、を有し、回路基板の下面と、回路基板の上面の導光板が設けられている部分以外の部分に充填剤が設けられている構成とする。 In order to solve such a problem, the washing machine of the present invention has a housing, an outer lid provided on the upper portion of the housing, and an operation panel provided on the outer lid, and the operation panel is a circuit board. A light guide plate provided between the outer lid and the circuit board and having a groove in contact with the upper surface of the circuit board, and a light emitting element arranged in the groove, the lower surface of the circuit board and the circuit board. The filler is provided in a portion other than the portion where the light guide plate is provided on the upper surface of the above surface .

本発明によれば、比較的安価で輝度が高い発光素子を用いても操作パネルの表示面輝度の低下を抑止可能な洗濯機を提供出来る。 According to the present invention, it is possible to provide a washing machine capable of suppressing a decrease in the brightness of the display surface of the operation panel even if a light emitting element having a relatively low cost and a high brightness is used.

本発明に係る洗濯機の斜視図である。It is a perspective view of the washing machine which concerns on this invention. 本発明に係る洗濯機の上面図である。It is a top view of the washing machine which concerns on this invention. 本発明に係る洗濯機の操作パネルの断面を示す図である。It is a figure which shows the cross section of the operation panel of the washing machine which concerns on this invention.

以下、本発明を実施するための形態（以下「実施形態」という）について、適宜図面を参照しながら詳細に説明する。図１は、本発明の第１の実施形態に係る洗濯機の斜視図を示す。図２は上面図である。 Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate. FIG. 1 shows a perspective view of a washing machine according to the first embodiment of the present invention. FIG. 2 is a top view.

図１に示すように、本実施形態の洗濯機は、筐体１０と、この筐体１０内に備える洗濯槽とを含んで構成されたものであり、全体を支持するベース１１と、前板１２と、後板１３と、左右の側板１４と、上板であるトップカバー１５と、外蓋１７と、を備えている。 As shown in FIG. 1, the washing machine of the present embodiment includes a housing 10 and a washing tub provided in the housing 10, and has a base 11 that supports the whole and a front plate. A rear plate 13, a left and right side plates 14, a top cover 15 which is an upper plate, and an outer lid 17 are provided.

外蓋１７には、図２に示すように、運転コースの設定や運転状態の表示などを行う操作パネル１６が内蔵されている。なお、外蓋は、１枚のガラス蓋であり、塵などが入らない構造であり、操作パネル１６と面一の構成としており、それにより意匠性が高く、且つ、ゴミ等の付着がし難く、拭き掃除がし易い構造となっている。本実施形態では、操作パネル１６内に操作パネル１７を設けているが、使用者が操作しやすいように、外蓋１７の中央部又は中央部より手前側に設けることが望ましい。 As shown in FIG. 2, the outer lid 17 has a built-in operation panel 16 for setting a driving course and displaying a driving state. The outer lid is a single glass lid and has a structure that does not allow dust to enter, and has a structure flush with the operation panel 16. Therefore, the design is high and it is difficult for dust and the like to adhere to the outer lid. The structure is easy to wipe and clean. In the present embodiment, the operation panel 17 is provided in the operation panel 16, but it is desirable to provide the operation panel 17 in the central portion or the front side of the central portion of the outer lid 17 so that the user can easily operate the operation panel 17.

次に、図３に操作パネルの縦断面の一部を示す。 Next, FIG. 3 shows a part of the vertical cross section of the operation panel.

操作パネル１６の下方には、回路基板２４に接続された、複数の発光素子であるＬＥＤ２３が設けられている。そのＬＥＤから出射された光で、運転コースの設定や運転状態の表示などが可能となる。１つ１つのＬＥＤ２３は、ＬＥＤ２３から出射された光を効率よく、正確に、操作パネル１６に導くため、仕切り板が設けられたＬＥＤガイド２０内に設けられ、ＬＥＤ２３から出射された光は、透明な導光板２１を介して、操作パネル１６裏側から照射される。その際、導光板２１には、ＬＥＤ２３を設けるための、溝穴２２を設けた構成としている。 Below the operation panel 16, LED 23, which is a plurality of light emitting elements, connected to the circuit board 24 is provided. The light emitted from the LED makes it possible to set the driving course and display the driving state. Each LED 23 is provided in the LED guide 20 provided with a partition plate in order to efficiently and accurately guide the light emitted from the LED 23 to the operation panel 16, and the light emitted from the LED 23 is transparent. It is irradiated from the back side of the operation panel 16 via the light guide plate 21. At that time, the light guide plate 21 is provided with a groove hole 22 for providing the LED 23.

従来から回路基板２４には水気侵入による絶縁不良を抑止するために、充填剤２５等で覆う、ポッティング処理が施されている。そのため、ＬＥＤガイド２０の下方には、充填剤２５が流れ込むように、回路基板２４とＬＥＤガイド２０の間に、約２～３mmの隙間が設けられている。しかし、ＬＥＤ２３が接続された回路基板２４上、すべて充填剤２５で覆った場合、リードフレームが短い、またはリードフレームが無い安価なＬＥＤを使用した際、ＬＥＤの一部表面が充填剤で覆われ、ＬＥＤから出射された光が充填剤に遮られ、操作パネル１６の表示面輝度が下がる恐れがある。 Conventionally, the circuit board 24 has been subjected to a potting process of covering with a filler 25 or the like in order to suppress insulation failure due to intrusion of water. Therefore, a gap of about 2 to 3 mm is provided below the LED guide 20 between the circuit board 24 and the LED guide 20 so that the filler 25 flows into the LED guide 20. However, when the circuit board 24 to which the LED 23 is connected is entirely covered with the filler 25, a part of the surface of the LED is covered with the filler when an inexpensive LED having a short lead frame or no lead frame is used. , The light emitted from the LED may be blocked by the filler, and the brightness of the display surface of the operation panel 16 may decrease.

本発明では、ＬＥＤ２３の外形形状に合わせた溝穴２２を設けた透明の導光板を、ＬＥＤ２３が導光板２１の溝穴２２の中に納まるように、回路基板２４の表面に密着させながら取り付けることで、ＬＥＤ２３が配設されている個所のみ充填剤２５が流れ込むことを抑止でき、安価で輝度が高い表面実装型のＬＥＤを使用することが可能となり、操作パネルの表示面の視認性を向上することが出来る洗濯機を提供することが出来る。 In the present invention, a transparent light guide plate provided with a groove hole 22 that matches the outer shape of the LED 23 is attached while being in close contact with the surface of the circuit board 24 so that the LED 23 fits in the groove hole 22 of the light guide plate 21. Therefore, it is possible to prevent the filler 25 from flowing only in the place where the LED 23 is arranged, and it is possible to use a surface mount type LED which is inexpensive and has high brightness, and improves the visibility of the display surface of the operation panel. It is possible to provide a washing machine that can.

１０ 筐体
１１ ベース
１２ 前板
１３ 後板
１４ 側板
１５ トップカバー
１６ 操作パネル
１７ 外蓋
２０ ＬＥＤガイド
２１ 導光板
２２ 溝穴
２３ ＬＥＤ
２４ 回路基板
２５ 充填剤 10 chassis 11 base
12 Front plate
13 Rear plate 14 Side plate 15 Top cover 16 Operation panel 17 Outer lid 20 LED guide 21 Light guide plate 22 Groove hole 23 LED
24 Circuit board 25 Filler

Claims (4)

筐体と、前記筐体上部に設けた外蓋と、前記外蓋に設けた操作パネルと、を有し、
前記操作パネルは、回路基板と、前記外蓋と前記回路基板との間に設けられ、前記回路基板の上面に接触する溝穴を有する導光板と、前記溝穴に配置された発光素子と、を有し、
前記回路基板の下面と、前記回路基板の上面の前記導光板が設けられている部分以外の部分に充填剤が設けられていることを特徴とする洗濯機。 It has a housing, an outer lid provided on the upper portion of the housing, and an operation panel provided on the outer lid.
The operation panel includes a circuit board , a light guide plate provided between the outer lid and the circuit board, and having a groove hole in contact with the upper surface of the circuit board, and a light emitting element arranged in the groove hole. Have,
A washing machine characterized in that a filler is provided on a portion other than the lower surface of the circuit board and the portion of the upper surface of the circuit board where the light guide plate is provided . 請求項１記載の洗濯機であって、前記操作パネルは、前記外蓋の表面と面一になるように内蔵された、洗濯機。 The washing machine according to claim 1, wherein the operation panel is built so as to be flush with the surface of the outer lid. 請求項１記載の洗濯機であって、前記操作パネルは、前記外蓋の中央部、又は中央部手前に配置された、洗濯機。 The washing machine according to claim 1, wherein the operation panel is arranged at the center of the outer lid or in front of the center. 請求項１記載の洗濯機であって、前記発光素子は、表面実装型ＬＥＤである、洗濯機。 The washing machine according to claim 1, wherein the light emitting element is a surface mount type LED.
JP2019001553A 2019-01-09 2019-01-09 washing machine Active JP7007307B2 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006301544A (en) 2005-04-25 2006-11-02 Matsushita Electric Works Ltd Optical component and lighting apparatus using the optical component

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527175Y2 (en) * 1988-03-16 1993-07-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006301544A (en) 2005-04-25 2006-11-02 Matsushita Electric Works Ltd Optical component and lighting apparatus using the optical component

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