JPH051919Y2 - - Google Patents
Info
- Publication number
- JPH051919Y2 JPH051919Y2 JP15630088U JP15630088U JPH051919Y2 JP H051919 Y2 JPH051919 Y2 JP H051919Y2 JP 15630088 U JP15630088 U JP 15630088U JP 15630088 U JP15630088 U JP 15630088U JP H051919 Y2 JPH051919 Y2 JP H051919Y2
- Authority
- JP
- Japan
- Prior art keywords
- ptc heater
- insulating base
- base plate
- metal
- metal plate
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 229920003051 synthetic elastomer Polymers 0.000 claims description 6
- 239000005061 synthetic rubber Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、内燃機関のフユーエルシステムに使
用されるPTCヒーターに関し、具体的には該
PTCヒーターを構成する部品の改良に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a PTC heater used in a fuel system of an internal combustion engine, and specifically relates to a PTC heater used in a fuel system of an internal combustion engine.
Concerning improvements to the parts that make up PTC heaters.
［従来の技術］
従来、この種のPTCヒーターは、発熱ヒータ
ーと断熱絶縁ベースと前記熱を拡散せしめる金属
板と該金属板をシールするガスケツトなどの複数
部品からなつており、前記断熱絶縁ベースは硬質
のフエノール樹脂等で形成され、金属板は熱伝導
性のよいアルミニウムまたは銅などが用いられ、
ガスケツトはＯリングあるいはアスベストシート
などが各部品間にそれぞれ装着されている。[Prior Art] Conventionally, this type of PTC heater has been made up of multiple parts such as a heat generating heater, a heat insulating base, a metal plate for diffusing the heat, and a gasket for sealing the metal plate. It is made of hard phenolic resin, etc., and the metal plate is made of aluminum or copper, which has good thermal conductivity.
Gaskets include O-rings or asbestos sheets installed between each part.
［考案が解決しようとする課題］
しかしながら、前記のような構造では積層する
部品点数が多いためこれを締付けるボルトの軸力
がガスケツトの応力緩和によつて低下し、当然密
封耐久性が劣るものとなる。また、断熱絶縁ベー
スを形成する硬質のフエノール樹脂は成形精度が
得にくく特に厚み精度、平面度に難点を持つてお
り高度の加工手間を要する。さらに、当然のこと
ながらこれら複数の部品は組み付ける手間が必要
であるなど多く欠点を有していた。[Problems to be solved by the invention] However, in the structure described above, since there are many parts to be stacked, the axial force of the bolts that tighten them decreases due to the stress relaxation of the gasket, which naturally leads to poor sealing durability. Become. In addition, the hard phenolic resin that forms the heat insulating base has difficulty in molding precision, particularly in thickness precision and flatness, and requires a high degree of processing effort. Furthermore, as a matter of course, these multiple parts have many drawbacks, such as the need to assemble them.
本考案はこのような欠点に鑑みて、低価格でし
かも成形性の良好なるPTCヒーターを提供する
ことを目的としている。 In view of these drawbacks, the present invention aims to provide a PTC heater that is inexpensive and has good moldability.
以下、図面を参照しつつ詳述する。 A detailed description will be given below with reference to the drawings.
［課題を解決するための手段］
本考案は、第１図に示すように、エンジンにお
けるインテークマニホールドとキヤブレターの間
に装着され、吸気の予熱をなさしめる複数の部品
からなつたPTCヒーターＡであつて；絶縁ベー
ス板１を合成ゴムで形成し、これにセラミツクヒ
ーター２を備えた金属板３を接合してこれらを一
体化せしめたことを特徴としている。[Means for Solving the Problems] As shown in Fig. 1, the present invention is a PTC heater A that is installed between an intake manifold and a carburetor in an engine and is made up of a plurality of parts to preheat intake air. The insulating base plate 1 is made of synthetic rubber, and a metal plate 3 provided with a ceramic heater 2 is bonded to the insulating base plate 1 to integrate them.
なお、前記金属板３に、第４図に示すようなラ
バーコートメタル３ａを使用してPTCヒーター
Ａを形成することも可能である。 Incidentally, it is also possible to form the PTC heater A on the metal plate 3 using a rubber coat metal 3a as shown in FIG.
［作用］
PTCヒーターとは、Positive Temperture
Coefficientの略、すなわち、正温度係数を有す
るセラミツクヒーターであつて、本考案は上記の
構造を該PTCヒーターＡに持たしめることによ
り、図面に示すようにシール作用と断熱絶縁作用
とを絶縁ベース板１によつてなさしめ部品点数を
少なしめて金属板３の放熱効果を最大限に発揮さ
せている。この断熱絶縁作用は合成ゴムの持つ大
きな特性の一つであり、合わせて該合成ゴムは密
封性に優れているから絶縁ベース板１として最適
な材料となつている。また、その成形の容易性か
らビード８等を簡単に設けられ強い密封性を得ら
れる。[Function] What is PTC heater?Positive Temperature
It is an abbreviation for Coefficient, that is, it is a ceramic heater having a positive temperature coefficient.The present invention provides the PTC heater A with the above-mentioned structure, thereby providing a sealing function and a heat insulation function to the insulating base plate as shown in the drawing. 1 reduces the number of parts and maximizes the heat dissipation effect of the metal plate 3. This heat-insulating effect is one of the great properties of synthetic rubber, and the synthetic rubber also has excellent sealing properties, making it the most suitable material for the insulating base plate 1. Furthermore, because of its ease of molding, beads 8 and the like can be easily provided and strong sealing performance can be obtained.
［実施例］
本考案を実施するに、絶縁ベース板１の硬度及
び弾力性は種々選択出来るが、過締め付けに対す
る応力緩和を解消するための一手段として第４図
に示すような筒形スペーサー５をボルト穴４に挿
入して締め付けを規制することも出来る。[Example] In carrying out the present invention, various hardness and elasticity can be selected for the insulating base plate 1, but as a means for eliminating stress relaxation due to over-tightening, a cylindrical spacer 5 as shown in FIG. 4 is used. It is also possible to restrict tightening by inserting a bolt into the bolt hole 4.
また、合成ゴムからなる絶縁ベース板１の密封
性を増加せしめるためにその吸気ポート穴６ある
いはボルト穴４の周辺にビード８を配設すること
は簡単であり、さらに、第３図のように金属板３
にその吸気ポート穴６を囲む形状の切欠き７を設
け、絶縁ベース板１に突出せしめたシール部１ａ
を該切欠き７に装着せしめることも出来るなど、
これらの追加構造によつてさらなる強力な密封力
を期待できる。 Further, in order to increase the sealing performance of the insulating base plate 1 made of synthetic rubber, it is easy to arrange beads 8 around the intake port holes 6 or bolt holes 4, and further, as shown in FIG. metal plate 3
A seal portion 1a is provided with a notch 7 shaped to surround the intake port hole 6 and protrudes from the insulating base plate 1.
It is also possible to attach it to the notch 7, etc.
With these additional structures, even stronger sealing force can be expected.
［考案の効果］
本考案によると、主要な機能部品である絶縁ベ
ース板１が直接密封作用をなすため密封性に優
れ、その部品点数も大きく削減できる。また、合
成ゴムの弾性によりエンジンの振動を押さえ良好
な密着性をもつて強い耐久力を発揮する。[Effects of the invention] According to the invention, the insulating base plate 1, which is a main functional component, directly performs a sealing action, so that the sealing performance is excellent and the number of parts can be greatly reduced. In addition, the elasticity of the synthetic rubber suppresses engine vibrations, provides good adhesion, and exhibits strong durability.
また、金属板３にラバーコートメタル３ａを用
いると絶縁ベース板１への密着は云うに及ばず密
封すべき部材に対して強い密着力をみせ強大な密
封作用が得られるものとなる。 Further, when the rubber coated metal 3a is used for the metal plate 3, not only does it adhere to the insulating base plate 1, but it also exhibits a strong adhesion force to the member to be sealed, and a powerful sealing effect can be obtained.
第１図は本考案のPTCヒーターの部分断面図
である。第２図は第１図の底面図である。第３
図、及び第４図は本考案の他の実施例を示した部
分断面図である。
Ａ……PTCヒーター、１……絶縁ベース板、
１ａ……シール部、２……セラミツクヒーター、
３……金属板、３ａ……ラバーコートメタル、４
……ボルト穴、５……筒形スペーサー、６……吸
気ポート、７……切欠き、８……ビード。
FIG. 1 is a partial sectional view of the PTC heater of the present invention. FIG. 2 is a bottom view of FIG. 1. Third
4 and 4 are partial sectional views showing other embodiments of the present invention. A...PTC heater, 1...Insulating base plate,
1a... Seal part, 2... Ceramic heater,
3...Metal plate, 3a...Rubber coat metal, 4
... Bolt hole, 5 ... Cylindrical spacer, 6 ... Intake port, 7 ... Notch, 8 ... Bead.
Claims (1)
レター間にあつて吸気の予熱をなさしめる複数
の部品からなつたPTCヒーターＡにおいて；
絶縁ベース板１を合成ゴムで形成し、これにセ
ラミツクヒーター２を備えた金属板３を接合し
て一体化したことを特徴とするPTCヒーター。 (2) 前記金属板３にラバーコートメタル３ａを用
いたことを特徴としたPTCヒーター。 (3) 前記PTCヒーターＡのボルト穴４に金属か
らなる筒形スペーサー５を挿設したことを特徴
とした請求項(1)，(2)記載のPTCヒーター。 (4) 前記金属板３にその吸気ポート穴６を囲む形
状の切欠き７を設け、絶縁ベース板１に突出せ
しめたシール部１ａを該切欠き７に挿着せしめ
たことを特徴とした請求項(1)，(2)，(3)記載の
PTCヒーター。 (5) 前記絶縁ベース板１の外表面に一条以上のビ
ード８を形成したことを特徴とした請求項(1)，
(2)，(3)，(4)記載のPTCヒーター。[Claims for Utility Model Registration] (1) In PTC heater A, which is located between the engine intake manifold and carburetor and consists of multiple parts that preheats intake air;
A PTC heater characterized in that an insulating base plate 1 is made of synthetic rubber, and a metal plate 3 equipped with a ceramic heater 2 is bonded to the insulating base plate 1 and integrated therewith. (2) A PTC heater characterized in that the metal plate 3 is made of rubber coated metal 3a. (3) The PTC heater according to claims (1) and (2), characterized in that a cylindrical spacer 5 made of metal is inserted into the bolt hole 4 of the PTC heater A. (4) A claim characterized in that the metal plate 3 is provided with a notch 7 having a shape surrounding the intake port hole 6, and the seal portion 1a protruding from the insulating base plate 1 is inserted into the notch 7. Items (1), (2), and (3)
PTC heater. (5) Claim (1) characterized in that one or more beads 8 are formed on the outer surface of the insulating base plate 1;
PTC heater described in (2), (3), and (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630088U JPH051919Y2 (en) | 1988-11-29 | 1988-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630088U JPH051919Y2 (en) | 1988-11-29 | 1988-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0276496U JPH0276496U (en) | 1990-06-12 |
| JPH051919Y2 true JPH051919Y2 (en) | 1993-01-19 |
Family
ID=31434718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15630088U Expired - Lifetime JPH051919Y2 (en) | 1988-11-29 | 1988-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051919Y2 (en) |
-
1988
- 1988-11-29 JP JP15630088U patent/JPH051919Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0276496U (en) | 1990-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1291183C (en) | Aluminum faced expanded graphite gasket and method of making same | |
| JP2548036Y2 (en) | Exhaust gas recirculation device | |
| JPS6328879Y2 (en) | ||
| US3889961A (en) | Molded type heat insulating gasket | |
| US4593670A (en) | Fuel evaporator for internal combustion engine | |
| US4727843A (en) | Mounting retainer for electromagnetic fuel injector | |
| JPH051919Y2 (en) | ||
| US5115787A (en) | Spark ignition combustion engine of the fuel injection type and heating element therefor | |
| US4243231A (en) | Gasket reinforced by grommet in combination with graphite sheet | |
| JP2003201929A (en) | Carrier gasket | |
| JPS631862A (en) | Internal combustion engine | |
| JP2847443B2 (en) | Intake and exhaust gasket | |
| JPS5928118Y2 (en) | plastic air cleaner | |
| JPH0599087A (en) | Intake manifold assembly structure for internal combustion engine | |
| JPS6321699Y2 (en) | ||
| JPS6321700Y2 (en) | ||
| JPH0122927Y2 (en) | ||
| JPS6347643Y2 (en) | ||
| JPS6026862A (en) | Laminated gasket | |
| JP3133924B2 (en) | Gasket for intake manifold | |
| JPH0245464Y2 (en) | ||
| JPS597576Y2 (en) | air purifier | |
| JPH085332Y2 (en) | Flange seal structure in manifold | |
| JPH051735Y2 (en) | ||
| JPH0452955Y2 (en) |