JP6220860B2 - 流量センサ - Google Patents
流量センサ Download PDFInfo
- Publication number
- JP6220860B2 JP6220860B2 JP2015508148A JP2015508148A JP6220860B2 JP 6220860 B2 JP6220860 B2 JP 6220860B2 JP 2015508148 A JP2015508148 A JP 2015508148A JP 2015508148 A JP2015508148 A JP 2015508148A JP 6220860 B2 JP6220860 B2 JP 6220860B2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- flow sensor
- sensor according
- gate
- laser
- 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.)
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Links
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Images
Classifications
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- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- B29C66/53462—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies joining substantially flat covers and substantially flat bottoms to open ends of container bodies
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7377—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
- B29C66/73775—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline
- B29C66/73776—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline the to-be-joined areas of both parts to be joined being crystalline
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
- B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0079—Liquid crystals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0046—Elastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Measuring Volume Flow (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
図4(A)は、流量センサのハウジングの左側面図であり、図4(B)は、正面図である。図5(A)は、流量センサのハウジングの右側面図であり、図5(B)は、背面図である。
図4において、ハウジング302に副通路を成形するための副通路溝306を設けており、カバーをハウジング302の表面及び裏面に配置し副通路溝306の近傍に配置した突起部307と、表カバー303と裏カバー304とをレーザにより溶着することで副通路が完成する。
ハウジングに形成した突起307よりもレーザ光550のスポットサイズを大きくすることで、本実施例のバリを形成することができる。図11のように、表カバー303の凹部501に対応する部分のみレーザ溶着部390の幅を大きくしておくことにより強度を向上させることができる。
30…被計測気体
110…内燃機関
112…エンジンシリンダ
114…エンジンピストン
116…吸入弁
118…排気弁
122…エアクリーナ
124…主通路
126…スロットルボディ
128…吸気マニホールド
132…スロットルバルブ
144…角度センサ
146…回転角度センサ
148…酸素センサ
152…燃料噴射弁
154…点火プラグ
156…アイドルエアコントロールバルブ
200…制御装置
300…熱式流量センサ
302…ハウジング
303…表カバー
304…裏カバー
305…外部接続部
306…副通路溝
307…レーザ溶着用の突起部
308…接合面の凹部
310…計測部
312…フランジ
315…熱絶縁部
317…上流側突起
318…下流側突起
320…端子接続部
322…保護部
324…突き出しピン
326…挿入孔
328…位置合わせ部
341…下流部
342…上流部
343…入口
350…入口
351…入口溝
353…出口溝
356…突起部
361…外部端子内端
380…突起部
381…突起部
382…空洞部
386…表側流路
387…裏側流路
390…レーザ溶着部
400…回路パッケージ
412…接続端子
430…計測用流路面
431…計測用流路面裏面
436…熱伝達面露出部
438…開口
452…温度検出部
500…ゲートカット部
501…レーザ照射面の凹部
502…レーザ照射面の第二の凹部
550…レーザ光
602…流量検出部
Claims (18)
- ハウジングと、カバーと、それらの間で封止され電子部品や配線部を内蔵する回路室と、検知対象となる流体が通過する副通路部とを備えた流量センサにおいて、
前記カバーは、ゲートカット部と、
前記回路室および前記副通路部を形成するレーザ溶着部を備え、
前記ゲートカット部付近の前記レーザ溶着部の一部の厚みおよび幅は、前記レーザ溶着部の一部以外の前記レーザ溶着部の厚みおよび幅より薄くて広いことを特徴とする流量センサ。 - 請求項1記載の流量センサであって、
前記カバーのレーザ溶着された部分のレーザー透過率が、可視光のいずれかの波長において35%以上であることを特徴とする流量センサ。 - 請求項2記載の流量センサであって、
前記カバーのレーザ溶着されていない部分のレーザー透過率が、可視光のいずれかの波長において20%以下であることを特徴とする流量センサ。 - 請求項1及至3のいずれか記載の流量センサであって、
前記カバーは、レーザーが入射する側に凹部を備え、レーザ溶着された部分の前記凹部底面部の幅は、前記レーザ光のスポット径及びハウジングの突起幅よりも大きいことを特徴とする流量センサ。 - 請求項1及至4のいずれか記載の流量センサであって、
前記カバーは、溶着面側に凹部を備え、前記凹部底面部の幅は、レーザ光のスポット径及びハウジングの突起幅よりも大きいことを特徴とする流量センサ。 - 請求項1及至5のいずれか記載の流量センサであって、
少なくとも前記ゲートカット部付近の前記レーザ溶着部にはバリが形成されていることを特徴とする流量センサ。 - 請求項6記載の流量センサであって、
前記ハウジングに形成した突起部の幅よりも、入射するレーザ光のスポットサイズが大きいことを特徴とする流量センサ。 - 請求項6又は7記載の流量センサであって、
少なくとも副通路部に形成した前記レーザ溶着部のバリは、カバーの凹部内に収納されていることを特徴とする流量センサ。 - 請求項1及至8のいずれか記載の流量センサであって、
前記カバーのゲートカット部付近のレーザ溶着部の溶着幅が、その他のレーザ溶着部の溶着幅よりも大きいことを特徴とする流量センサ。 - 請求項1及至9のいずれか記載の流量センサであって、
前記凹部の端に傾斜を設けたことを特徴とする流量センサ。 - 請求項1及至10のいずれか記載の流量センサであって、
前記カバーを形成するためのゲート構造をピンゲートとし、前記カバーのゲートカット部の位置を回路室中央付近に設けたことを特徴とする流量センサ。 - 請求項1及至10のいずれか記載の流量センサであって、
前記カバーを形成するためのゲート構造をピンゲートとし、前記カバーのゲートカット部の位置を副通路部の外周側近傍に設けたことを特徴とする流量センサ。 - 請求項1及至10のいずれか記載の流量センサであって、
前記カバーを形成するためのゲート構造をサイドゲートとし、前記カバーのゲートカット部の位置を副通路部の外周側に設けたことを特徴とする流量センサ。 - 請求項1及至10のいずれか記載の流量センサであって、
前記カバーを形成するためのゲート構造をサイドゲートとし、前記カバーのゲートカット部の位置をフランジ側に設けたことを特徴とする流量センサ。 - 請求項1及至14のいずれか記載の流量センサであって、
前記レーザ溶着部に相当するカバーの透過率に応じて、厚みが異なる部分が複数箇所あることを特徴とする流量センサ。 - 請求項1及至15のいずれか記載の流量センサであって、
前記カバーのガラスファイバーの添加の割合が、前記ハウジングのガラスファイバーの添加割合よりも小さいことを特徴とする流量センサ。 - 請求項1及至16のいずれか記載の流量センサであって、
前記カバー材の結晶化度が前記ハウジング材の結晶化度より小さいことを特徴とする流量センサ。 - 請求項1及至17のいずれか記載の流量センサであって、
前記カバーのゲートカット部付近の弾性率は、前記カバーのその他の部分の弾性率よりも大きいことを特徴とする流量センサ。
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