JPH02274295A - Manufacture of control part for washing machine - Google Patents
Manufacture of control part for washing machineInfo
- Publication number
- JPH02274295A JPH02274295A JP9788389A JP9788389A JPH02274295A JP H02274295 A JPH02274295 A JP H02274295A JP 9788389 A JP9788389 A JP 9788389A JP 9788389 A JP9788389 A JP 9788389A JP H02274295 A JPH02274295 A JP H02274295A
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- buffer material
- case
- board
- coating resin
- 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
- 238000005406 washing Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract 2
- 230000003245 working effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、運転制御用電子部品を取付けた基板を樹脂コ
ーティングしてなる洗濯機等の運転制御部の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of manufacturing an operation control unit for a washing machine or the like, which is formed by coating a substrate with operation control electronic components attached with a resin.
マイコン等により自動制御可能な家電殿器として全自動
洗濯機の一例を第６図に示すと、外箱（１１）の中に水
受は槽（図示せず）を設け、さらにその内部に透水用小
孔を穿設した洗濯槽（１４）を回動自在に設け、この洗
濯槽（１４）内に正反転動作するかくはん翼（１３）を
立設し、また外箱（１１）の上部に取付けるトップパネ
ル（９）にフタ（１ｏ）を取付け、該トップパネル（９
）の周囲、例えば前側に、洗濯運転のための入出力及び
センサ一部を集中制御する操作パネル（１２）を形成す
る。Figure 6 shows an example of a fully automatic washing machine as a household appliance that can be automatically controlled by a microcomputer, etc. A water receptacle (not shown) is provided inside the outer box (11), and a water permeable tank is installed inside the outer box (11). A washing tub (14) with a small hole for washing is rotatably provided, and stirring blades (13) that operate in forward and reverse directions are set upright in the washing tub (14), and a Attach the lid (1o) to the top panel (9) to be attached, and then
), for example, on the front side, is formed an operation panel (12) for centrally controlling input/output and a part of the sensors for the washing operation.
該操作パネル（１２）の下部には、抵抗、スイッチ、ト
ランジスタ、ＩＣ、ランプ等の電子部品を装着した基板
を配設するが、この基板はケースを使用して、コーティ
ング樹脂で封止して湿気対応構造としてから前記トップ
パネル（９）に取付け、操作パネル（１２）の外部から
のスイッチ操作を可能としている。A board on which electronic components such as resistors, switches, transistors, ICs, and lamps are mounted is installed at the bottom of the operation panel (12), and this board is sealed with a coating resin using a case. After having a moisture-resistant structure, it is attached to the top panel (9), and the switch can be operated from the outside of the operation panel (12).
、このように電子部品を搭載した基板の各電子部品のリ
ード脚部を埋設する樹脂コーティングは、操作パネル（
１２）へ取付ける前に行ねれか、その方法は第７図に示
すように、電子部品を搭載した基板（１）よりもひと回
り大きい浴槽状のケース（７〕を用いる。In this way, the resin coating that embeds the lead legs of each electronic component on the board with electronic components mounted on it is used to protect the operation panel (
12).As shown in FIG. 7, a bathtub-shaped case (7) that is slightly larger than the board (1) on which the electronic components are mounted is used.
第７図に示すように、該ケース（７）には、底板（７ｂ
）と側板（７ａ）とのコーナ一部に底板（７ｂ）から立
上がる板状のリブ（７ａ）を前記基板（１）の位置決め
用として一体成形で設けてあり、まず、液状のコーティ
ング樹脂（８）をこのケース（７）内に流しこむ。As shown in FIG. 7, the case (7) has a bottom plate (7b
) and the side plate (7a) are integrally molded with plate-shaped ribs (7a) rising from the bottom plate (7b) for positioning the substrate (1). 8) into this case (7).
次いで、第８図に示すように該基板（１）をゆっくりと
コーティング樹脂（８）の中へと押し込み沈ませる。す
ると、ケース（７）と該基板（１）の四方の周囲のすき
まからコーティング樹脂（８）が流れ出し、該基板（１
）の抵抗（２）、スイッチ（３）、トランジスタ（４）
、ＩＣ（５）等の電子部品のり一ド腓部を埋没させる。Next, as shown in FIG. 8, the substrate (1) is slowly pushed into the coating resin (8) and allowed to sink. Then, the coating resin (8) flows out from the gaps around the four sides of the case (7) and the substrate (1).
) resistor (2), switch (3), transistor (4)
, bury the calf of electronic components such as IC (5).
該基板（１）がケース（７）のリブ（７ａ）で支承され
るまで押し込むと、しばら（後に基板（１）の上面に流
れ出したコーティング樹脂（８）は平らになり、該コー
ティング樹脂（８）によってすべての電子部品のリード
脚部が埋没される。以後、乾燥することによってコーテ
ィング樹脂（８）は凝固する。When the substrate (1) is pushed in until it is supported by the ribs (7a) of the case (7), the coating resin (8) that later flowed out onto the top surface of the substrate (1) becomes flat, and the coating resin (8) ), the lead legs of all the electronic components are buried.Then, the coating resin (8) is solidified by drying.
しかし、このような従来の方式においては、第８図にも
示したように、コーティング樹脂（８）が基板（１）の
部品面にその周囲から流れ出し、かつこのコーティング
樹脂（８）が高粘度であるので必要以上に高く盛り上が
り、基板（１）の挿入速度が早すぎるとスイッチ（３）
等の可動部へ侵入したりするおそれがある。However, in such a conventional method, as shown in FIG. Therefore, if the board (1) is inserted too fast, the switch (3) will rise higher than necessary.
There is a risk of the product entering the moving parts of the equipment.
したがって、基板（１）の挿入はゆっくりとかつ慎重に
行わなければならず、作業能率が悪いばかりか、品質面
においても注意を要する必要があった。Therefore, the board (1) had to be inserted slowly and carefully, which not only resulted in poor work efficiency but also required care in terms of quality.
本発明の目的は前記従来例の不都合を解消し、作業効率
も良く、組立ても簡単で、しかも作業工程内品質の良い
ものが得られる洗濯機等の制御部の製造方法を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a control unit for a washing machine, etc., which eliminates the disadvantages of the conventional example, has good work efficiency, is easy to assemble, and can produce products with good quality during the work process. .
本発明は前記目的を達成するため、液状のコーティング
樹脂を溜めたケース内に運転制御用電子部品を取付けた
基板をその電子部品のリード脚部が埋没するように挿入
してコーティングする場合において、基板端部下面とケ
ース底板間の特定部に弾力性のある独立発泡性の緩衝材
を配し、この緩衝材を押圧しながら基板を所定深さまで
挿入することを要旨とするものである。In order to achieve the above-mentioned object, the present invention provides the following steps when coating a board on which an electronic component for operation control is attached is inserted into a case containing liquid coating resin so that the lead leg of the electronic component is buried. The gist of this method is to place an elastic, closed-cell cushioning material in a specific area between the lower surface of the end of the board and the bottom plate of the case, and insert the board to a predetermined depth while pressing this cushioning material.
本発明によれば、樹脂流れ緩衝材を設けたところにおい
ては、この緩衝材が基板端部下面とケース底板間を閉塞
することで、コーティング樹脂の該基板の部品面側への
流れは抑制され、基板上に必要以上に盛り上がることは
ないので、作業性は改善される。According to the present invention, where the resin flow buffer material is provided, the flow of the coating resin toward the component side of the board is suppressed by blocking the space between the lower surface of the end of the board and the bottom plate of the case. , the workability is improved because it does not bulge on the substrate more than necessary.
以下、図面について本発明の実施例を詳細に説明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図〜第５図は本発明の洗濯機等の制御部の製造方法
の各工程を示すもので、前記従来例を示す第７図、第８
図と同一構成要素には同一参照符号を付したものである
。Figures 1 to 5 show each step of the method of manufacturing a control unit for a washing machine, etc. according to the present invention, and Figures 7 and 8 show the conventional example.
Components that are the same as those in the figures are given the same reference numerals.
図中（１）は抵抗（２）、スイッチ（３）、トランジス
タ（４）、ｒｃ （５）等の電子部品を設けた基板、（
７）は基板（１）より一回り大きく、底板（７ｂ）と側
板（７ａ）とのコーナ一部に底板（７ｂ）から立上がる
板状のリブ（７ａ）を−体成形で前記基板（１）の位置
決め用として設けた浴槽状のケースである。In the figure, (1) is a board with electronic components such as a resistor (2), a switch (3), a transistor (4), and an RC (5);
7) is one size larger than the substrate (1), and a plate-shaped rib (7a) rising from the bottom plate (7b) is formed at a part of the corner of the bottom plate (7b) and the side plate (7a) by body molding. ) is a bathtub-shaped case provided for positioning.
本発明はこの他に、角柱状で、かるく押しつけるとちぢ
む程度の弾力性のある独立発泡性のスポンジ状の緩衝材
（６）を準備した。In addition, the present invention prepared a closed foam sponge-like cushioning material (6) that is prismatic and elastic enough to shrink when pressed lightly.
該緩衝材（６）は横向きとした場合、前記基板（１）の
位置（高さ）を決めるリブ（７ａ）の高さより少しく２
〜５ ｍｍ）高い（厚い）もので、両面接着テープなど
でケース（７）の底＋ｆｆ１（７ｂ）に固定するが、そ
の取付は位置は特定部すなわち基板（１）の端部下で、
しかもコーティング樹脂（８）の侵入による不具合が発
生するスイッチ（３）等がある基板（１）の下部にあた
る部分を選定する。When the cushioning material (6) is placed horizontally, the height is slightly smaller than the height of the rib (7a) that determines the position (height) of the substrate (1).
~5 mm) high (thick), and is fixed to the bottom +ff1 (7b) of the case (7) with double-sided adhesive tape, etc., but its installation position is in a specific part, that is, under the edge of the board (1).
In addition, the lower part of the substrate (1) where the switch (3) and other parts are likely to cause problems due to the intrusion of the coating resin (8) is selected.
このようにケース（７）内に緩衝材（６）を予め設けて
おき、第２図に示すようにケース（７）内に液状のコー
ティング樹脂（８）を規定量、計量して注入する。該コ
ーティング樹脂（８）はリブ（７ａ）及び緩衝材（６）
が完全に埋没する高さまで溜められる。The cushioning material (6) is thus provided in the case (7) in advance, and a prescribed amount of the liquid coating resin (8) is injected into the case (7) in a measured amount as shown in FIG. The coating resin (8) covers the ribs (7a) and the cushioning material (6).
is accumulated to a height where it is completely buried.
次いで、第３図に示すように該基板（１）をゆっくりと
押しこむ。するとケース（７）と該ＭｆＭ（１）との「
スキマ」からコーティング樹脂（８）の液が押し出され
て盛り上がり部品面へと上がってくる。このとき、液の
流れに対する緩衝材（６）の影響はほとんどない。Next, as shown in FIG. 3, the substrate (1) is slowly pushed in. Then, between case (7) and the MfM (1),
The coating resin (8) liquid is pushed out from the gap and rises to the surface of the component. At this time, the buffer material (6) has almost no effect on the flow of the liquid.
さらに第４図に示すように、基板（１）をさらに押し込
むとコーティング樹脂（８）は−層押し上げられ、盛り
上がり部品面へと流れ出す。しかし緩衝材（６）がある
部分については、基板（１）と緩衝材（６）の「スキマ
」がなくなりコーティング樹脂（８）は、緩衝材（６）
にさえぎられ部品面への盛り上がり作用はな（なる。As shown in FIG. 4, when the substrate (1) is pushed further, the coating resin (8) is pushed up by a layer, swells and flows out onto the component surface. However, in the area where the buffer material (6) is located, there is no "gap" between the substrate (1) and the buffer material (6), and the coating resin (8) is applied to the buffer material (6).
The bulging effect on the part surface is blocked by this.
このまま基板（１）を押し込むと第５図のようにケース
（７）のリブ（７ａ〕によって基板（１）は所定深さに
位置決めされる。また、緩衝材（６）は、やわらかい弾
力性のある材質であるのでリブ（７ａ）の高さまで圧縮
される。If the board (1) is pushed in as it is, the board (1) will be positioned at a predetermined depth by the ribs (7a) of the case (7) as shown in Figure 5.The cushioning material (6) is made of soft elastic material. Since it is made of a certain material, it is compressed to the height of the rib (7a).
このままの状態で乾燥させれば凝乾し、コーティング樹
脂（８）は固型化する。また、緩衝材（６）は、独立発
泡性のものを使用しているので温熱乾燥を行っても、コ
ーティング樹脂（８）には気泡は発生しにくい。If it is dried in this state, it will coagulate and the coating resin (8) will solidify. In addition, since the cushioning material (6) is made of a closed-cell foam material, even if it is heated and dried, air bubbles are unlikely to be generated in the coating resin (8).
なお、前記実施例では、ケース（７）に緩衝材（６）を
貼付したが、これを基板（１）下に貼付してもよい。ま
た、注型ケース方式について実施例を述べたが、注型ケ
ースとしてゴム状の治具や軟質性プラスチック等の注型
方法においても本発明は応用可能である。In the above embodiment, the cushioning material (6) was attached to the case (7), but it may also be attached under the substrate (1). Furthermore, although the embodiment has been described with respect to a casting case method, the present invention is also applicable to a method of casting a rubber-like jig or soft plastic as a casting case.
以上述べたように本発明の洗濯機等の制御部の製造方法
は、液状のコーティング樹脂を溜めたケース内に運転制
御用電子部品を取付けた基板をその電子部品のリード脚
部が埋没するように挿入してコーティングする場合にお
いて、弾力性のある緩衝材によってコーティング樹脂の
液流れを抑制することによって、スイッチ等の可動部へ
の液侵入もなくなり、コーティング作業での工程品質の
向上が得られる。As described above, the method of manufacturing a control unit for a washing machine, etc. according to the present invention is to place a board on which an electronic component for operation control is attached in a case containing liquid coating resin so that the lead leg of the electronic component is buried. When coating by inserting the coating into the coating, the elastic buffer material suppresses the liquid flow of the coating resin, which eliminates liquid intrusion into moving parts such as switches, improving process quality in coating work. .
また、基板の挿入は従来と同しであるが、基板押し込み
速度を気にすることがなくなり、作業能率、作業性の改
善、向上をはかることができるものである。Further, although the insertion of the board is the same as before, there is no need to worry about the board pushing speed, and work efficiency and workability can be improved.
第１図は本発明の洗濯機等の制御部の製造方法の１実施
例を示す組立前の斜視図、第２図〜５図は、各作業工程
を示す縦断正面図、第６図は洗濯機の外観斜視図、第７
図、第８図は従来例を示す群断正面図である。
（１）・・・基板 （２）・・・抵抗（３）・
・・スイッチ （４）・・・トランジスタ（５）・
・・ＩＣ（６）・・・緩衝材
（７）・・・ケース （７ａ）・・・リブ（７
ｂ）・・・底板 （７Ｃ）・・・側板（８）・・
・コーティング樹脂FIG. 1 is a perspective view before assembly showing one embodiment of the method for manufacturing a control unit for a washing machine, etc. of the present invention, FIGS. 2 to 5 are longitudinal sectional front views showing each work process, and FIG. 6 is a washing machine. External perspective view of the machine, No. 7
8 are group sectional front views showing a conventional example. (1)... Board (2)... Resistor (3)
・・Switch (4)・・Transistor (5)・
...IC (6)...Cushioning material (7)...Case (7a)...Rib (7
b)...Bottom plate (7C)...Side plate (8)...
・Coating resin
Claims (1)
電子部品を取付けた基板をその電子部品のリード脚部が
埋没するように挿入してコーティングする場合において
、基板端部下面とケース底板間の特定部に弾力性のある
独立発泡性の緩衝材を配し、この緩衝材を押圧しながら
基板を所定深さまで挿入することを特徴とする洗濯機等
の制御部の製造方法。When coating a board with electronic components for operation control installed in a case filled with liquid coating resin so that the lead legs of the electronic components are buried, it is necessary to identify the gap between the lower surface of the end of the board and the bottom plate of the case. 1. A method of manufacturing a control part for a washing machine, etc., characterized by disposing an elastic closed-foam cushioning material in the part, and inserting a board to a predetermined depth while pressing the cushioning material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9788389A JPH02274295A (en) | 1989-04-18 | 1989-04-18 | Manufacture of control part for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9788389A JPH02274295A (en) | 1989-04-18 | 1989-04-18 | Manufacture of control part for washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02274295A true JPH02274295A (en) | 1990-11-08 |
Family
ID=14204147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9788389A Pending JPH02274295A (en) | 1989-04-18 | 1989-04-18 | Manufacture of control part for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02274295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013069832A (en) * | 2011-09-22 | 2013-04-18 | Panasonic Corp | Control device of apparatus |
-
1989
- 1989-04-18 JP JP9788389A patent/JPH02274295A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013069832A (en) * | 2011-09-22 | 2013-04-18 | Panasonic Corp | Control device of apparatus |
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