JPH088427B2 - Electronic device - Google Patents
Electronic deviceInfo
- Publication number
- JPH088427B2 JPH088427B2 JP4229666A JP22966692A JPH088427B2 JP H088427 B2 JPH088427 B2 JP H088427B2 JP 4229666 A JP4229666 A JP 4229666A JP 22966692 A JP22966692 A JP 22966692A JP H088427 B2 JPH088427 B2 JP H088427B2
- Authority
- JP
- Japan
- Prior art keywords
- metal member
- electronic device
- thick metal
- blind plug
- thin
- 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 - Fee Related
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Mounting Components In General For Electric Apparatus (AREA)
- Casings For Electric Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばベースに厚肉金
属部材を使用した電子装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device using, for example, a thick metal member as a base.
【０００２】[0002]
【従来の技術】従来の電子装置においては、例えば、特
開昭６０−２２９３９７号公報に開示されるように、導
電性樹脂接着剤を使用して回路基板上に電子部品を接合
したり、特開昭６０−３４５１１号公報に開示されるよ
うに、ボルト・ナツトを使用して部品相互を機械的に接
合しているが、前者の接着剤方式の場合には、耐冷熱試
験等の環境下において耐久性に劣り、また後者の場合に
は、ボルト・ナツト間の隙間から水分や油分が侵入する
可能性を有していた。従つて、電子装置を熱的環境条件
の厳しい場所や、水分，油分等の存在する場所等に設置
する場合には、このような欠点を有さない、耐久性，気
密性に優れた溶接手段を用いて、電子装置の部品の接合
を行うことが要求されるが、溶接により部品の接合を行
う場合には、次のような解決すべき問題を有していた。2. Description of the Related Art In a conventional electronic device, for example, as disclosed in Japanese Patent Laid-Open No. 60-229397, a conductive resin adhesive is used to bond an electronic component onto a circuit board, As disclosed in Japanese Laid-Open Patent Publication No. 60-34511, parts are mechanically joined to each other by using bolts and nuts. However, in the case of the former adhesive method, the environment is such as a cold heat resistance test. In the latter case, the durability was poor, and in the latter case, there was a possibility that water or oil would enter through the gap between the bolt and nut. Therefore, when the electronic device is installed in a place where the thermal environmental conditions are severe, or where water, oil, etc. are present, a welding means having no such drawbacks and excellent in durability and airtightness. Although it is required to join the components of the electronic device by using, there is a problem to be solved in the case of joining the components by welding.
【０００３】[0003]
【発明が解決しようとする課題】電子装置の部品相互間
を溶接する場合、特に厚肉の金属部材（ベース）上に電
子部品を構成する薄肉金属板（例えば電磁シールド）を
溶接する場合には、溶接条件からして被溶接部材同士の
融点が同一或いは近い必要がある。従つて、被溶接部材
同士が異種金属材料からなる場合には溶接が難しい問題
を有していた。また、被溶接部材同士の材質が同じもの
であっても、厚肉金属部材と薄肉金属部材とを溶接する
場合には、厚肉材の方が薄肉材よりも放熱量が大きいた
め、融点時期が異なり溶接が難しい問題を有していた。When welding parts of an electronic device to each other, particularly when welding a thin metal plate (for example, an electromagnetic shield) which constitutes an electronic part on a thick metal member (base). The melting points of the members to be welded must be the same or close to each other in view of the welding conditions. Therefore, there is a problem that welding is difficult when the members to be welded are made of different metal materials. Even when the materials to be welded are the same, when a thick metal member and a thin metal member are welded, the heat dissipation amount of the thick material is larger than that of the thin material. However, there was a problem that welding was difficult.
【０００４】本発明は以上の点に鑑みてなされ、その目
的は、厚さが異なる異種材質の電子部品同士を溶接を利
用して接合可能にし、しかも電子装置を空気流量測定用
として適用する場合の取付けを簡易にする電子装置を提
供することにある。The present invention has been made in view of the above points, and an object thereof is to make it possible to join electronic parts made of different materials having different thicknesses by welding, and to apply the electronic device for measuring an air flow rate. An object of the present invention is to provide an electronic device that simplifies the installation of the.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、電子装置として、盲栓挿入孔付きの厚肉金
属部材を備え、前記盲栓挿入孔に前記厚肉金属部材と異
なる材質の薄肉金属製の溶接用盲栓が嵌合してあり、且
つ、前記厚肉金属部材に空気流量を検出するための感温
抵抗体及び温度補償用抵抗体が装着してあるものを提案
する。In order to achieve the above object, the present invention comprises a thick metal member having a blind plug insertion hole as an electronic device, wherein the blind plug insertion hole is different from the thick metal member. A thin-walled metal welding blind plug is fitted, and the temperature sensitivity for detecting the air flow rate in the thick metal member.
It is proposed that a resistor and a temperature compensating resistor are attached.
【０００６】[0006]
【作用】上記構成よりなれば、盲栓によって、厚肉金属
部材の領域に該厚肉金属部材と異種の薄肉金属部を確保
することができる。したがって、厚肉金属部材の面上に
搭載すべき電子部品が薄肉金属部材で上記厚肉金属部材
と異なる材質であっても、この薄肉金属部材に対し盲栓
の材質を同一材質か又は融点の近い異種材料でその厚み
も薄肉にしておけば、盲栓と電子部品たる薄肉金属部材
との溶接が可能となり、この溶接を介して厚肉金属部材
と薄肉金属部材との間接的な接合を図り得る。With the above structure, a blind metal plug can secure a thin metal portion different from the thick metal member in the region of the thick metal member. Therefore, even if the electronic component to be mounted on the surface of the thick-walled metal member is a thin-walled metal member and is made of a material different from that of the thick-walled metal member, the blind plug material for the thin-walled metal member is the same material or the melting point of If the thickness is made thin with a material of a similar type, it is possible to weld the blind plug and a thin metal member that is an electronic component. obtain.
【０００７】また、厚肉金属部材には、空気流量を検出
するための感温抵抗体及び温度補償用抵抗体が装着して
あるので、この厚肉金属部材を他の部材（空気流量計の
ボディ）に取付ける場合は、空気流量検出用の感温抵抗
体及び温度補償用抵抗体も同時にセットできるので、空
気流量計に用いる電子装置の取付けを簡易に行い得る。Also, the air flow rate is detected in the thick metal member.
Since a temperature-sensitive resistor and a temperature-compensating resistor are installed , the temperature-sensitive resistor for detecting the air flow rate should be used when this thick metal member is attached to another member (air flow meter body).
Body and temperature compensating resistor also because it simultaneously set, empty
The electronic device used for the air flow meter can be easily attached.
【０００８】[0008]
【実施例】本発明の一実施例を図１及び図２により説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
【０００９】図１は本発明の一実施例を示す断面図であ
る。FIG. 1 is a sectional view showing an embodiment of the present invention.
【００１０】同図において、１は電子装置、２は電子装
置のベースとなるアルミニウム製の厚肉金属部材であ
る。厚肉金属部材２には、後述の電磁シールド５を搭載
する領域に盲栓挿入孔１２が複数個配設してあり、盲栓
挿入孔１２に黄銅製の薄肉金属で成形された盲栓１１が
圧入により嵌合してある。In the figure, 1 is an electronic device, and 2 is a thick metal member made of aluminum which is a base of the electronic device. The thick metal member 2 is provided with a plurality of blind plug insertion holes 12 in a region where an electromagnetic shield 5 to be described later is mounted, and the blind plug insertion holes 12 are made of brass thin metal blind plugs 11. Are fitted by press fitting.
【００１１】３は電子装置の側面を構成するプラスチツ
クケース、４は電子装置の上面を構成するプラスチツク
カバーであり、両者は接着剤で接着されている。Reference numeral 3 denotes a plastic case which constitutes a side surface of the electronic device, and 4 denotes a plastic cover which constitutes an upper surface of the electronic device, both of which are adhered by an adhesive.
【００１２】５は電磁シールドを構成する黄銅製の薄肉
金属部材で、その内側に電子回路基板６を搭載してい
る。シールド５は、電子回路基板６を搭載する前に黄銅
盲栓１１の頭面に接触させて、盲栓１にＰ点の位置でス
ポツト溶接され、これにより厚肉金属部材２上に間接的
に接合してある。Reference numeral 5 is a thin metal member made of brass which constitutes an electromagnetic shield, and an electronic circuit board 6 is mounted inside the thin metal member. Before mounting the electronic circuit board 6, the shield 5 is brought into contact with the head surface of the brass blind plug 11 and spot-welded to the blind plug 1 at a position P, whereby the thick metal member 2 is indirectly welded. It is joined.
【００１３】７はシールドカバー、８はコンデンサ、９
はリード線、１０はターミナルである。シールド５とシ
ールドカバー７は、厚肉金属部材２と盲栓１１を介して
電気的に接続してアースされ、このようにして外部から
の妨害電波，雑音電波等がシールド５及びシールドカバ
ー７で囲まれた内部に侵入するのを防止している。7 is a shield cover, 8 is a capacitor, 9
Is a lead wire and 10 is a terminal. The shield 5 and the shield cover 7 are electrically connected to the ground through the thick metal member 2 and the blind plug 11, and are grounded in this way. Prevents entry into the enclosed area.
【００１４】図２は、図１の電子装置の使用例として熱
式流量計を示したものである。同図において、図１と同
一符号は同一部分を示す。すなわち、１は電子装置であ
り、本例では、熱線式流量計の電子装置を構成する。２
は厚肉金属部材、５は電磁シールド、６は電子回路部で
ある。FIG. 2 shows a thermal type flow meter as an example of use of the electronic device of FIG. In the figure, the same reference numerals as those in FIG. 1 indicate the same parts. That is, 1 is an electronic device, and constitutes an electronic device of a hot-wire type flow meter in this example. Two
Is a thick metal member, 5 is an electromagnetic shield, and 6 is an electronic circuit section.
【００１５】また、１３は被検出体である空気が流れる
流量計本体（ボデイ）、１４は空気流量を検出するセン
サを構成する感温抵抗体、１５は温度補償用抵抗体であ
り、感温抵抗体１４がバイパス通路１３ａに流れる空気
量Ｑ１（全空気量Ｑの一部）を検出し、この検出信号に
基づき電子回路部６が全空気量Ｑを求めるものである。
このような熱式空気流量計は、自動車エンジンの空燃比
制御を行う場合の空気流量計測に用いられることが多
い。そのため、熱的環境条件が厳しく、水分，油分が存
在する自動車のエンジンルーム内に設置されることが多
いが、本実施例によれば、耐久性，気密性に優れた溶接
手段により厚肉基板２と薄肉シールド５とを盲栓１１を
介し間接的に接合できるので、外部からの油分，水分の
侵入を効果的に防止し、しかも耐久性に優れた効果を発
揮することができる。また、電磁シールド５は厚肉金属
部材２との電気的接続を溶接により可能にすることによ
り、アース機能を発揮し、外部からの電気的ノイズを有
効に遮蔽することができる。Further, 13 is a flowmeter main body (body) through which air as an object to be detected flows, and 14 is a sensor for detecting the air flow rate.
The temperature-sensitive resistor 15 and the temperature-compensating resistor 15 constitute a temperature-compensating resistor , and the temperature-sensitive resistor 14 detects the amount of air Q1 (a part of the total amount of air Q) flowing in the bypass passage 13a. Based on this, the electronic circuit section 6 obtains the total air amount Q.
Such a thermal air flow meter is often used to measure an air flow rate when performing air-fuel ratio control of an automobile engine. Therefore, it is often installed in the engine room of an automobile where the thermal environmental conditions are severe and water and oil are present. However, according to the present embodiment, the thick substrate is welded by the welding means excellent in durability and airtightness. Since the thin shield 5 and the thin shield 5 can be indirectly joined to each other through the blind plug 11, invasion of oil and water from the outside can be effectively prevented, and an effect of excellent durability can be exhibited. Further, the electromagnetic shield 5 can perform an electrical connection with the thick metal member 2 by welding, thereby exhibiting a grounding function and effectively shielding electrical noise from the outside.
【００１６】[0016]
【発明の効果】以上のように、本発明における電子装置
によれば、電子部品を構成する厚肉金属部材に薄肉の異
種金属製の溶接用盲栓を設けることで、電子部品を構成
する厚さの異なる、しかも異種材料同士をこの盲栓を介
して溶接により間接的に接合できる。さらに、電子装置
のベースとして使用できる厚肉金属部材に空気流量検出
用の感温抵抗体及び温度補償用抵抗体を装着すること
で、空気流量計としての電子装置の取付けを簡易にする
効果を奏する。As described above, according to the electronic device of the present invention, the thick metal member forming the electronic component is provided with the thin blind plug for welding made of dissimilar metals, and thus the thickness of the electronic component is increased. It is possible to indirectly bond different materials having different thicknesses by welding through the blind plug. Furthermore, the air flow rate can be detected on a thick metal member that can be used as a base for electronic devices.
By mounting the temperature sensitive resistor and the temperature compensating resistor for use in the air flow meter , it is possible to easily attach the electronic device as the air flow meter .
【図１】本発明の一実施例に係る断面図FIG. 1 is a sectional view according to an embodiment of the present invention.
【図２】上記実施例の使用例を示す断面図FIG. 2 is a sectional view showing an example of use of the above embodiment.
【符号の説明】 １…電子装置、２…厚肉金属部材、５…薄肉金属部材
（電磁シールド）、６…電子回路部、１１…盲栓、１２
…盲栓挿入孔[Description of Reference Signs] 1 ... Electronic device, 2 ... Thick metal member, 5 ... Thin metal member (electromagnetic shield), 6 ... Electronic circuit part, 11 ... Blind plug, 12
... Blind plug insertion hole
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０５Ｋ 7/14 Ｍ 7301−4Ｅ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication H05K 7/14 M 7301-4E
Claims (1)
前記盲栓挿入孔に前記厚肉金属部材と異なる材質の薄肉
金属製の溶接用盲栓が嵌合してあり、且つ、前記厚肉金
属部材に空気流量を検出するための感温抵抗体及び温度
補償用抵抗体が装着してあることを特徴とする電子装
置。1. A thick metal member having a blind plug insertion hole,
A thin metal welding blind plug made of a material different from that of the thick metal member is fitted into the blind plug insertion hole, and a temperature-sensitive resistor for detecting an air flow rate in the thick metal member, temperature
An electronic device having a compensating resistor mounted thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4229666A JPH088427B2 (en) | 1992-08-28 | 1992-08-28 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4229666A JPH088427B2 (en) | 1992-08-28 | 1992-08-28 | Electronic device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17608386A Division JPS6332999A (en) | 1986-07-26 | 1986-07-26 | How to join parts in electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05226871A JPH05226871A (en) | 1993-09-03 |
| JPH088427B2 true JPH088427B2 (en) | 1996-01-29 |
Family
ID=16895777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4229666A Expired - Fee Related JPH088427B2 (en) | 1992-08-28 | 1992-08-28 | Electronic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088427B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4683358B2 (en) * | 2005-09-12 | 2011-05-18 | 株式会社クリエイティブ テクノロジー | Fitting |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332999A (en) * | 1986-07-26 | 1988-02-12 | 株式会社日立製作所 | How to join parts in electronic equipment |
-
1992
- 1992-08-28 JP JP4229666A patent/JPH088427B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332999A (en) * | 1986-07-26 | 1988-02-12 | 株式会社日立製作所 | How to join parts in electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05226871A (en) | 1993-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |