JPH04252739A - Plastic meter case and its manufacture - Google Patents
Plastic meter case and its manufactureInfo
- Publication number
- JPH04252739A JPH04252739A JP3010039A JP1003991A JPH04252739A JP H04252739 A JPH04252739 A JP H04252739A JP 3010039 A JP3010039 A JP 3010039A JP 1003991 A JP1003991 A JP 1003991A JP H04252739 A JPH04252739 A JP H04252739A
- Authority
- JP
- Japan
- Prior art keywords
- wiring board
- printed wiring
- meter case
- mold
- plastic meter
- 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
- 239000004033 plastic Substances 0.000 title claims abstract description 16
- 229920003023 plastic Polymers 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0014—Shaping of the substrate, e.g. by moulding
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
Landscapes
- Instrument Panels (AREA)
- Casings For Electric Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はプラスチック製メータケ
ース、特に自動車のダッシュボードに組込むプラスチッ
ク製メータケース及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic meter case, particularly to a plastic meter case to be incorporated into an automobile dashboard, and a method for manufacturing the same.
【０００２】0002
【従来の技術】各種装置を制御するメータは一箇所に集
め、ケースに収納してオペレータが見易いように配列さ
れる。たとえば、自動車のメータ類はダッシュボードの
メータケースに収納配設される。このメータケースを製
造するには熱可塑性樹脂を射出成形によって成形し、各
メータ類にフレキシブルプリントサーキット（ＦＰＣ）
を配線して、これらを各種部品と共にケースの中に組込
んで組み立てていた。2. Description of the Related Art Meters that control various devices are collected in one place, housed in a case, and arranged so that they can be easily viewed by an operator. For example, automobile meters are housed in a meter case on a dashboard. To manufacture this meter case, thermoplastic resin is molded by injection molding, and each meter is equipped with a flexible printed circuit (FPC).
These were then assembled together with various parts in a case.
【０００３】0003
【発明が解決しようとする課題】しかしながら、通常メ
ータ類は種々の形状をしており、又、特に最近の自動車
においては、コンピュータ制御によるパーツが多く、メ
ータ類の数が増しているため、メータケースの形状はよ
り複雑化してきた。そして、これらのメータ類をメータ
ケースに組込むためには電気配線を伴なうが、配線が極
めて複雑であるため、この種の配線には、可撓性フィル
ムの表面に回路パターンをプリントしたＦＰＣが従来か
ら用いられている。ところが、ＦＰＣはフィルムである
ため、取扱いに注意が必要で、自動組み付けが不可能で
あり、手作業にならざるを得なかった。[Problem to be Solved by the Invention] However, meters usually have various shapes, and especially in recent automobiles, there are many computer-controlled parts and the number of meters is increasing. Case shapes have become more complex. In order to incorporate these meters into the meter case, electrical wiring is required, but since the wiring is extremely complicated, this type of wiring requires FPC with a circuit pattern printed on the surface of a flexible film. has traditionally been used. However, since FPC is a film, it must be handled with care and cannot be assembled automatically, so it must be assembled manually.
【０００４】本発明の目的は、上述の従来技術の不都合
を解消し、部品数を削減すると共に製造工程を簡略化で
きるプラスチック製メータケース及びその製造方法を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a plastic meter case and a method for manufacturing the same, which can eliminate the above-mentioned disadvantages of the prior art, reduce the number of parts, and simplify the manufacturing process.
【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
の手段として、本発明のプラスチック製メータケースは
、チップ部品、コネクター及びジャンパー線を実装した
プリント配線基板がインサート成形されたことを特徴と
するものであり、又、プラスチック製メータケースの製
造方法は、チップ部品、コネクター及びジャンパー線を
表面実装技術によりプリント配線基板に実装し、これを
金型に装填して熱可塑性樹脂を射出成形することを特徴
とするものである。[Means for Solving the Problems] As a means for achieving the above object, the plastic meter case of the present invention is characterized in that a printed wiring board on which chip components, connectors, and jumper wires are mounted is insert-molded. The manufacturing method for plastic meter cases involves mounting chip components, connectors, and jumper wires on a printed wiring board using surface mount technology, loading this into a mold, and injection molding thermoplastic resin. It is characterized by this.
【０００６】[0006]
【作用】上記の構成によると、本発明のプラスチック製
メータケースはケース自体に配線がされていることにな
り、部品点数が削減されるばかりでなく、ＦＰＣを組込
む作業が省略でき、メータ類の製造工程を簡略化できる
。[Function] According to the above structure, the plastic meter case of the present invention has wiring in the case itself, which not only reduces the number of parts but also eliminates the work of assembling an FPC. The manufacturing process can be simplified.
【０００７】[0007]
【実施例】以下、この発明を図面にしたがって具体的に
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below with reference to the drawings.
【０００８】図１は本発明のメータケースの断面図であ
り、本体１は熱可塑性樹脂が所望の形状に射出成形され
た成形品であり、その裏面にはプリント配線基板２及び
ジャンパー線３が、又適宜箇所にはコネクター４が本体
１を厚み方向に貫通してインサート成形されている。熱
可塑性樹脂としては、ＡＢＳ樹脂、ポリプロピレン（Ｐ
Ｐ）樹脂など一般にケース材として使用される樹脂が用
いられる。FIG. 1 is a cross-sectional view of the meter case of the present invention. The main body 1 is a molded product made of thermoplastic resin injection molded into a desired shape, and a printed wiring board 2 and jumper wires 3 are arranged on the back side. Also, connectors 4 are insert-molded at appropriate locations so as to penetrate through the main body 1 in the thickness direction. Thermoplastic resins include ABS resin, polypropylene (P
P) A resin that is generally used as a case material, such as resin, is used.
【０００９】図２〜図４はプリント配線基板を示してお
り、基板５の表面には回路パターン６がプリントされて
おり、又その回路パターン６の適宜箇所にはチップ部品
７がマウントされ、圧接端子８の裏側にはコネクター４
が接続されている。基板５の素材は、通常耐熱性樹脂で
あり、回路パターン６は金属または金属粉を含む導電性
樹脂の印刷物である。チッップ部品７とコネクター４の
接続は、いかなる方法でも良いが、本発明では後述する
、ＳＭＴによるものが好ましい。FIGS. 2 to 4 show a printed wiring board, and a circuit pattern 6 is printed on the surface of the board 5, and chip components 7 are mounted at appropriate locations on the circuit pattern 6 and are press-fitted. Connector 4 is on the back side of terminal 8.
is connected. The material of the substrate 5 is usually a heat-resistant resin, and the circuit pattern 6 is a printed matter of a conductive resin containing metal or metal powder. Any method may be used to connect the chip component 7 and the connector 4, but in the present invention, it is preferable to use SMT, which will be described later.
【００１０】図５はジャンパー線の斜視図であり、本発
明におけるジャンパー線は一般的に使用されているＦＦ
Ｃ、リボン線、単芯線が用いられるが、図５のジャンパ
ー線３は複数本の導線９とこれを覆う耐熱性フィルム１
０から構成され、それ自体テープ状になった電気接続線
である。図１におけるプリント配線基板２と２´はジャ
ンパー線３で電気的に接続されている。FIG. 5 is a perspective view of a jumper wire, and the jumper wire in the present invention is a commonly used FF
C, a ribbon wire or a single core wire is used, but the jumper wire 3 in FIG.
It is an electrical connection wire consisting of 0 and itself tape-shaped. Printed wiring boards 2 and 2' in FIG. 1 are electrically connected by jumper wires 3.
【００１１】この様な本発明のメータケースはプリント
配線基板及びコネクターが組込まれたケースとして取り
扱うことができる。[0011] Such a meter case of the present invention can be handled as a case incorporating a printed wiring board and a connector.
【００１２】次に、本発明のプラスチック製メータケー
スの製造方法について説明する。Next, a method for manufacturing a plastic meter case according to the present invention will be explained.
【００１３】まず、予め所望のパターンに電気回路パタ
ーン６がプリントされたプリント配線基板２の所定箇所
にチップ部品７をＳＭＴを用いてマウントする。ＳＭＴ
とは表面実装技術の事であり、従来の、局所半田付け技
術（スルーホール法）に比べ、プリント配線基板全体を
半田溶融温度以上に加熱するため、各部品の耐熱性は要
求されるが、半田溶着効率に優れるものである。また、
必要に応じて、外部ハーネスとの接続用コネクタ、ジャ
ンパー線接続用端子も予めプリント配線基板上に実装し
ておく。この様にして得た仮接続プリント配線基板を金
型にセットする。図６にプリント配線基板をセットした
金型を示す。図６において１１，１１´は金型であり、
１２は樹脂の射出ゲートである。まず、図６に示すよう
に仮接続プリント配線基板２を金型１１，１１´にセッ
トし、金型１１，１１´でプレスするとジャンパー線３
とプリント配線基板２が圧接端子８を介して圧接される
。その後、金型１１、１１´をセットし、溶融樹脂を射
出ゲート１２から射出することにより、図１のようなプ
ラスチック製メータケースを製造する。First, the chip component 7 is mounted using SMT at a predetermined location on the printed wiring board 2 on which the electric circuit pattern 6 has been printed in advance in a desired pattern. SMT
is a surface mount technology, and compared to conventional local soldering technology (through-hole method), the entire printed wiring board is heated above the solder melting temperature, so each component must be heat resistant. It has excellent solder welding efficiency. Also,
If necessary, a connector for connecting to an external harness and a terminal for connecting jumper wires are also mounted on the printed wiring board in advance. The temporarily connected printed wiring board thus obtained is set in a mold. Figure 6 shows a mold in which a printed wiring board is set. In FIG. 6, 11 and 11' are molds,
12 is a resin injection gate. First, as shown in FIG. 6, the temporarily connected printed wiring board 2 is set in the molds 11, 11', and when pressed with the molds 11, 11', the jumper wires 3
and the printed wiring board 2 are pressed together via the pressure contact terminals 8. Thereafter, the molds 11 and 11' are set and molten resin is injected from the injection gate 12 to manufacture a plastic meter case as shown in FIG.
【００１４】この様に、本発明の方法でメータケースを
製造すれば、取り扱いの困難なＦＰＣを用いる必要もな
く、製造工程の簡略化が可能である。As described above, if a meter case is manufactured by the method of the present invention, there is no need to use an FPC that is difficult to handle, and the manufacturing process can be simplified.
【００１５】図７は、本発明における自動車用プラスチ
ック製メータケースの斜視図であり、１３，１３´はケ
ースに取り付けられる表示デバイスである。FIG. 7 is a perspective view of a plastic meter case for an automobile according to the present invention, and 13 and 13' are display devices attached to the case.
【００１６】[0016]
【発明の効果】上述した通り、この発明によれば、部品
の削減ができるのでメータ回りのパーツの小型化と軽量
化が可能となり、また組み立て工程が一部省略できるの
で製造工程全体としての簡略化が可能となる。[Effects of the Invention] As described above, according to the present invention, the number of parts can be reduced, making it possible to make the parts around the meter smaller and lighter.Also, since some assembly steps can be omitted, the manufacturing process as a whole can be simplified. It becomes possible to
【図１】本発明にかかるプラスチック製メータケースの
断面図。FIG. 1 is a sectional view of a plastic meter case according to the present invention.
【図２】プリント配線基板の斜視図。FIG. 2 is a perspective view of a printed wiring board.
【図３】プリント配線基板の側面図。FIG. 3 is a side view of the printed wiring board.
【図４】プリント配線基板の要部斜視図。FIG. 4 is a perspective view of essential parts of a printed wiring board.
【図５】ジャンパー線の斜視図。FIG. 5 is a perspective view of jumper wires.
【図６】本発明にかかるプラスチック製メータケースの
製造方法の説明図。FIG. 6 is an explanatory diagram of a method for manufacturing a plastic meter case according to the present invention.
【図７】自動車用プラスチック製メータケースの斜視図
。FIG. 7 is a perspective view of a plastic meter case for an automobile.
１ メータケース本体 ２ プリント配線基板 ３ ジャンパー線 ４ コネクタ ５ 基板 ６ 回路パターン ７ チップ部品 ８ 圧接端子 １２ 金型 1 Meter case body 2 Printed wiring board 3 Jumper wire 4 Connector 5 Substrate 6 Circuit pattern 7 Chip parts 8 Pressure contact terminal 12 Mold
Claims (2)
ー線を実装したプリント配線基板がインサート成形され
たことを特徴とするプラスチック製メータケース。1. A plastic meter case characterized in that a printed wiring board on which chip components, connectors, and jumper wires are mounted is insert-molded.
ー線を表面実装技術によりプリント配線基板に実装し、
これを金型に装填して熱可塑性樹脂を射出成形すること
を特徴とするプラスチック製メータケースの製造方法。[Claim 2] Chip components, connectors and jumper wires are mounted on a printed wiring board using surface mounting technology,
A method for manufacturing a plastic meter case, which comprises loading this into a mold and injection molding a thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010039A JPH04252739A (en) | 1991-01-30 | 1991-01-30 | Plastic meter case and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010039A JPH04252739A (en) | 1991-01-30 | 1991-01-30 | Plastic meter case and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04252739A true JPH04252739A (en) | 1992-09-08 |
Family
ID=11739256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3010039A Pending JPH04252739A (en) | 1991-01-30 | 1991-01-30 | Plastic meter case and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04252739A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08188068A (en) * | 1995-01-11 | 1996-07-23 | Sumitomo Electric Ind Ltd | Instrument assembly |
| JP2000150012A (en) * | 1998-11-13 | 2000-05-30 | Yazaki Corp | Detent structure of terminal |
| US6334361B1 (en) * | 1996-03-29 | 2002-01-01 | Continental Teves Ag & Co., Ohg | Plastic resistor and process for producing it |
| JP2009236604A (en) * | 2008-03-26 | 2009-10-15 | Kanto Auto Works Ltd | On-board meter |
| EP3466636A1 (en) | 2017-10-05 | 2019-04-10 | Casio Computer Co., Ltd. | Insert molding method and insert molding component |
| US11325293B2 (en) | 2017-10-05 | 2022-05-10 | Casio Computer Co., Ltd. | Insert molding and insert molding quality determination device |
-
1991
- 1991-01-30 JP JP3010039A patent/JPH04252739A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08188068A (en) * | 1995-01-11 | 1996-07-23 | Sumitomo Electric Ind Ltd | Instrument assembly |
| US6334361B1 (en) * | 1996-03-29 | 2002-01-01 | Continental Teves Ag & Co., Ohg | Plastic resistor and process for producing it |
| JP2000150012A (en) * | 1998-11-13 | 2000-05-30 | Yazaki Corp | Detent structure of terminal |
| JP2009236604A (en) * | 2008-03-26 | 2009-10-15 | Kanto Auto Works Ltd | On-board meter |
| EP3466636A1 (en) | 2017-10-05 | 2019-04-10 | Casio Computer Co., Ltd. | Insert molding method and insert molding component |
| US11325293B2 (en) | 2017-10-05 | 2022-05-10 | Casio Computer Co., Ltd. | Insert molding and insert molding quality determination device |
| US11472079B2 (en) | 2017-10-05 | 2022-10-18 | Casio Computer Co., Ltd. | Insert molding method and insert molding component |
| US11731329B2 (en) | 2017-10-05 | 2023-08-22 | Casio Computer Co., Ltd. | Insert molding method and insert molding component |
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