JP2003154838A - Fitting structure for casing - Google Patents

Fitting structure for casing

Info

Publication number
JP2003154838A
JP2003154838A JP2001354599A JP2001354599A JP2003154838A JP 2003154838 A JP2003154838 A JP 2003154838A JP 2001354599 A JP2001354599 A JP 2001354599A JP 2001354599 A JP2001354599 A JP 2001354599A JP 2003154838 A JP2003154838 A JP 2003154838A
Authority
JP
Japan
Prior art keywords
fitting
casing
tip
casing member
groove
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
Application number
JP2001354599A
Other languages
Japanese (ja)
Inventor
Koji Hisaka
幸司 日坂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2001354599A priority Critical patent/JP2003154838A/en
Publication of JP2003154838A publication Critical patent/JP2003154838A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure for casings 110 and 120 that can prevent air leakage due to molding strain. SOLUTION: When the casing 110 and the casing 120 are fitted together, a tip 122 of a fitting projection 121 is pressed against a bottom 114 of a fitting groove 113. The tip 122 of the fitting projection 121 is normally squeezed to offer fitting and reliable sealing, so that even in a portion where molding strain normally results in a gap and air leakage, the squeeze absorbs the molding strain and does not form a gap to ensure sealing by contact between the tip 122 of the fitting projection 121 and the bottom 114 of the fitting groove 113. This can prevent air leakage due to the molding strain of the casings.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、少なくとも第1ケ
ーシング部材と第2ケーシング部材とを嵌合することに
より構成されて、流体の通路をなすケーシングの嵌合構
造に関するもので、車両用空調装置の空気通路を構成す
る空調ケーシングに適用して有効である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casing fitting structure, which is formed by fitting at least a first casing member and a second casing member to form a fluid passage, and relates to a vehicle air conditioner. It is effective when applied to an air-conditioning casing that constitutes the air passage of

【0002】[0002]

【従来の技術】図6に従来の嵌合部の拡大断面図を示
す。従来このように、2つ以上の樹脂ケーシングの端
(型割面)を互いに嵌合する凹凸形状とし、その凹凸形
状を嵌め合わせることにより空調ケーシングが組み合わ
さり、その組み合わせた部分から風や水が漏れ出すのを
防いでいる。
2. Description of the Related Art FIG. 6 shows an enlarged sectional view of a conventional fitting portion. In this way, the ends (mold splitting surfaces) of two or more resin casings are formed into a concavo-convex shape that fits with each other, and the concavo-convex shapes are fitted together to combine the air-conditioning casings. It prevents it from leaking.

【0003】[0003]

【発明が解決しようとする課題】しかし、この様な樹脂
ケーシングを成形する際、樹脂材料が常温へと冷えてゆ
く過程で変形や歪みが生じ、組み合わせた時にケーシン
グ間の嵌合面の隙間となって風漏れが発生するという問
題がある。従来、この様な成形歪みで風漏れとなる場
合、ケーシングの成形型を修正して微妙なチューニング
を行わなければならず、修正の限界もある。
However, when molding such a resin casing, deformation or distortion occurs during the process of cooling the resin material to room temperature, and when the resin material is combined, a gap of the fitting surface between the casings is generated. There is a problem that wind leakage occurs. Conventionally, when such molding distortion causes air leakage, it is necessary to modify the molding die of the casing to perform fine tuning, and there is a limit to the modification.

【0004】本発明は、上記従来の問題に鑑みて成され
たものであり、その目的は、成形歪みによる風漏れを防
止できるケーシングの嵌合構造を提供することにある。
The present invention has been made in view of the conventional problems described above, and an object thereof is to provide a casing fitting structure capable of preventing wind leakage due to molding distortion.

【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、本発明では以下の技術的手段を採用する。
In order to achieve the above object, the present invention employs the following technical means.

【0006】請求項1記載の発明では、少なくとも第1
ケーシング部材(110)と第2ケーシング部材(12
0)とを嵌合することにより構成されて、流体の通路を
なす樹脂製ケーシングに適用される嵌合構造であって、
第1ケーシング部材(110)のうち第2ケーシング部
材(120)との嵌合部(130)に、所定の隙間を有
して面した一対の対向壁(111、112)を備える嵌
合用溝部(113)を設け、第2ケーシング部材(12
0)のうち第1ケーシング部材(110)との嵌合部
(130)に、嵌合用溝部(113)に嵌合する嵌合突
起部(121)を設け、第1ケーシング部材(110)
と第2ケーシング部材(120)とを嵌合させた時に嵌
合突起部(121)の先端(122)が嵌合用溝部(1
13)の底(114)に押し当たることを特徴とする。
In the invention according to claim 1, at least the first
The casing member (110) and the second casing member (12
(0) is a fitting structure that is configured by fitting with, and is applied to a resin casing that forms a fluid passage,
A fitting groove (provided with a pair of opposing walls (111, 112) facing the second casing member (120) of the first casing member (110) with a predetermined gap in the fitting portion (130). 113), and the second casing member (12
0), the fitting portion (130) with the first casing member (110) is provided with a fitting protrusion portion (121) which fits into the fitting groove portion (113), and the first casing member (110).
When the second casing member (120) and the second casing member (120) are fitted to each other, the tip (122) of the fitting protrusion (121) has a fitting groove (1).
It is characterized by pressing against the bottom (114) of 13).

【0007】これは、嵌合突起部(121)の先端(1
22)が嵌合用溝部(113)の底(114)に押し当
たる構造としておくことにより、通常は嵌合突起部(1
21)の先端(122)が押し潰されて嵌合と確実なシ
ールが成される。
This is the tip (1) of the fitting projection (121).
22) is designed to be pressed against the bottom (114) of the fitting groove (113), so that the fitting protrusion (1) is normally used.
The tip (122) of 21) is crushed to provide a fit and a reliable seal.

【0008】そして、通常なら成形歪みによって隙間が
空き風漏れとなる部分においても、潰し代分だけ成形歪
みを吸収して隙間を作らず、嵌合突起部(121)の先
端(122)と嵌合用溝部(113)の底(114)が
接触してシールを確保する構造となる。これにより、ケ
ーシングの成形歪みによる風漏れを防止することができ
る。
Further, even in a portion where the gap normally causes air leakage due to the molding strain, the molding strain is absorbed by the crushing allowance and the gap is not formed to fit the tip end (122) of the fitting projection (121). The bottom (114) of the combined groove portion (113) comes into contact with the structure to ensure a seal. As a result, it is possible to prevent air leakage due to molding distortion of the casing.

【0009】請求項2記載の発明では、嵌合突起部(1
21)の先端(122)は、嵌合部(130)に沿い、
連続する線または連続する幅の狭い面として形成される
ことを特徴とする。これにより、ケーシングの嵌合部全
域に渡って成形歪みによる風漏れを防止することができ
る。
According to the second aspect of the invention, the fitting protrusion (1
21) has a tip (122) along the fitting part (130),
It is characterized by being formed as a continuous line or a continuous narrow surface. This makes it possible to prevent air leakage due to molding distortion over the entire fitting portion of the casing.

【0010】請求項3記載の発明では、嵌合突起部(1
21)の先端平面部(123)に先端(122)を形成
したことを特徴とする。これにより、既存のケーシング
に先端(122)となる形状を追加するための成形型の
修正も容易である。因みに、上記各手段の括弧内の符号
は、後述する実施形態に記載の具体的手段との対応関係
を示す一例である。
In the invention according to claim 3, the fitting projection (1
21) is characterized in that a tip end (122) is formed on the tip end flat portion (123). As a result, it is easy to modify the molding die for adding the shape of the tip (122) to the existing casing. Incidentally, the reference numerals in parentheses of the above-mentioned respective means are examples showing the corresponding relationship with the concrete means described in the embodiments described later.

【0011】[0011]

【発明の実施の形態】以下、本発明の実施形態を、図面
に基づき説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

【0012】図1は本発明の実施形態に係る空調ケーシ
ングの斜視図であり、本発明の嵌合形状を車両用空調装
置のケーシング100に適用したものである。尚、空調
ケーシング100は、車室内に吹き出す空気(空調風)
の空気通路をすると共に、空気を冷却する蒸発器や空気
を加熱するヒータコア等の空調用熱交換器を収納するも
のである。
FIG. 1 is a perspective view of an air conditioning casing according to an embodiment of the present invention, in which the fitting shape of the present invention is applied to a casing 100 of a vehicle air conditioner. In addition, the air conditioning casing 100 is air blown into the vehicle interior (air conditioning wind).
The air passage of the air conditioner and the heat exchanger for air conditioning such as an evaporator for cooling the air and a heater core for heating the air are housed.

【0013】空調ケーシング100は、樹脂(本実施形
態ではポリプロピレン)製の第1ケーシング部材(上ケ
ーシング)110と第2ケーシング部材(下ケーシン
グ)120とを嵌合組み付けすることにより構成された
もので、130は両ケーシング部材110、120の嵌
合部である。
The air conditioning casing 100 is constructed by fitting and assembling a first casing member (upper casing) 110 and a second casing member (lower casing) 120 made of resin (polypropylene in this embodiment). , 130 are fitting portions of both casing members 110, 120.

【0014】図2は嵌合部130の拡大断面図であり、
第1ケーシング110のうち第2ケーシング120との
嵌合部130には、所定の隙間を有して面した一対の対
向壁111、112を備える嵌合用溝部113が設けら
れており、この嵌合用溝部113は嵌合部130全域に
渡って連続的に形成されている。
FIG. 2 is an enlarged sectional view of the fitting portion 130.
The fitting portion 130 of the first casing 110 with the second casing 120 is provided with a fitting groove portion 113 having a pair of facing walls 111 and 112 facing each other with a predetermined gap. The groove portion 113 is continuously formed over the entire fitting portion 130.

【0015】また、第2ケーシング120のうち第1ケ
ーシング110との嵌合部130には、嵌合用溝部11
3に嵌合する嵌合突起部121が設けられており、この
嵌合突起部121も嵌合用溝部113と同様に、嵌合部
130全域に渡って連続的に形成されている。
In the fitting portion 130 of the second casing 120 with the first casing 110, the fitting groove portion 11 is provided.
3 is provided with a fitting protrusion 121, and like the fitting groove 113, the fitting protrusion 121 is also continuously formed over the entire fitting portion 130.

【0016】そして、第1ケーシング110と第2ケー
シング120とを嵌合させた時に、嵌合突起部121の
先端122が嵌合用溝部113の底114に押し当たる
構造となっている。また、この嵌合突起部121の先端
122も嵌合用溝部113や嵌合突起部121と同様
に、嵌合部130全域に渡り、連続する線または連続す
る幅の狭い面として形成されている。
When the first casing 110 and the second casing 120 are fitted together, the tip 122 of the fitting projection 121 is pressed against the bottom 114 of the fitting groove 113. Further, like the fitting groove 113 and the fitting projection 121, the tip 122 of the fitting projection 121 is formed as a continuous line or a continuous narrow surface over the entire fitting portion 130.

【0017】次に、本実施形態の特徴を述べる。Next, the features of this embodiment will be described.

【0018】本実施形態によれば、嵌合突起部121の
先端122が嵌合用溝部113の底114に押し当たる
構造としておくことにより、通常は嵌合突起部121の
先端122が押し潰されて嵌合と確実なシールが成さ
れ、通常なら成形歪みによって隙間が空き風漏れとなる
部分においても、潰し代分だけ成形歪みを吸収して隙間
を作らず、嵌合突起部121の先端122と嵌合用溝部
113の底114が接触してシールを確保する構造とな
る。
According to this embodiment, the tip 122 of the fitting projection 121 is pressed against the bottom 114 of the fitting groove 113, so that the tip 122 of the fitting projection 121 is normally crushed. Fitting and reliable sealing are performed, and even at a portion where the gap normally causes air leakage due to molding strain, the molding strain is absorbed by the crushing margin and a gap is not formed. The bottom 114 of the fitting groove 113 comes into contact with the structure to ensure a seal.

【0019】これにより、ケーシングの成形歪みによる
風漏れを防止することができる。また、この構造が嵌合
部130全域に渡って形成されていることにより、ケー
シング全域の成形歪みによる風漏れを防止することがで
きる。また、これにより、成形型の微妙なチューニング
が不要となり、型修正の手間や型費を抑えることができ
る。
As a result, it is possible to prevent air leakage due to molding distortion of the casing. Further, since this structure is formed over the entire fitting portion 130, it is possible to prevent air leakage due to molding distortion in the entire casing. In addition, this eliminates the need for delicate tuning of the molding die, and saves the trouble of die modification and die cost.

【0020】(その他の実施形態)上述の実施形態で
は、従来の嵌合突起部121の先端平面部123に断面
が三角形状の先端122を付け加えた様な形状となって
いるが、本発明はこの形状に限定されるものではなく、
図3、図4に示すように先端122が半円形状や長方形
形状であっても良い。これらの形状ならば、既存のケー
シングに先端122となる形状を追加するための成形型
の修正も容易である。
(Other Embodiments) In the above-described embodiment, the conventional fitting protrusion 121 has a shape in which a tip 122 having a triangular cross section is added to the tip flat portion 123. However, the present invention is not limited to this. It is not limited to this shape,
As shown in FIGS. 3 and 4, the tip 122 may have a semicircular shape or a rectangular shape. With these shapes, it is easy to modify the molding die for adding the shape of the tip 122 to the existing casing.

【0021】また、新設型ならば図5に示すように、嵌
合突起部121先端側のテーパー部全体を尖らせて先端
122を形成する形状としても良い。この形状では嵌合
突起部121の先端側に平面部がなく、その分テーパー
部が大きくなっており、両ケーシング110、120を
組み合わせる際、相手ケーシング110が平面部に乗っ
て担ぎ嵌合不良となることがないうえ、組み合わせ時の
歪みや位置決めずれを吸収するガイドテーパー部が大き
くなっている分従来より嵌合性が向上することとなる。
Further, in the case of a new type, as shown in FIG. 5, the tip 122 may be formed by sharpening the entire tapered portion on the tip side of the fitting projection 121. In this shape, there is no flat portion on the tip side of the fitting projection 121, and the tapered portion is large by that amount, and when the two casings 110 and 120 are combined, the mating casing 110 rides on the flat portion and bears poor fitting. In addition, since the guide taper portion that absorbs distortion and misalignment at the time of combination is large, the fitting property is improved as compared with the conventional case.

【0022】尚、上述の実施形態では、空調ケーシング
を例に説明したが、本発明はこれに限定されるものでは
なく、その他のケーシングの嵌合構造にも適用すること
ができる。
In the above embodiment, the air-conditioning casing has been described as an example, but the present invention is not limited to this, and can be applied to other casing fitting structures.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施形態に係る空調ケーシングの斜視
図である。
FIG. 1 is a perspective view of an air conditioning casing according to an embodiment of the present invention.

【図2】図1の空調ケーシングにおける本発明嵌合部の
拡大断面図である。
FIG. 2 is an enlarged sectional view of a fitting portion of the present invention in the air conditioning casing of FIG.

【図3】本発明の他の実施形態における嵌合部の拡大断
面図である。
FIG. 3 is an enlarged cross-sectional view of a fitting portion according to another embodiment of the present invention.

【図4】本発明の他の実施形態における嵌合部の拡大断
面図である。
FIG. 4 is an enlarged cross-sectional view of a fitting portion according to another embodiment of the present invention.

【図5】本発明の他の実施形態における嵌合部の拡大断
面図である。
FIG. 5 is an enlarged cross-sectional view of a fitting portion according to another embodiment of the present invention.

【図6】従来の嵌合部の拡大断面図である。FIG. 6 is an enlarged cross-sectional view of a conventional fitting portion.

【符号の説明】[Explanation of symbols]

110 上ケーシング(第1ケーシング部材) 111 対向壁 112 対向壁 113 嵌合用溝部 114 底 120 下ケーシング(第2ケーシング部材) 121 嵌合突起部 122 先端 130 嵌合部 110 Upper casing (first casing member) 111 Opposite wall 112 Opposite wall 113 Fitting groove 114 bottom 120 Lower casing (second casing member) 121 Fitting protrusion 122 Tip 130 Fitting part

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 少なくとも第1ケーシング部材(11
0)と第2ケーシング部材(120)とを嵌合すること
により構成されて、流体の通路をなす樹脂製ケーシング
に適用される嵌合構造であって、 前記第1ケーシング部材(110)のうち前記第2ケー
シング部材(120)との嵌合部(130)に、所定の
隙間を有して面した一対の対向壁(111、112)を
備える嵌合用溝部(113)を設け、 前記第2ケーシング部材(120)のうち前記第1ケー
シング部材(110)との嵌合部(130)に、前記嵌
合用溝部(113)に嵌合する嵌合突起部(121)を
設け、 前記第1ケーシング部材(110)と前記第2ケーシン
グ部材(120)とを嵌合させた時に前記嵌合突起部
(121)の先端(122)が前記嵌合用溝部(11
3)の底(114)に押し当たることを特徴とするケー
シングの嵌合構造。
1. At least a first casing member (11)
0) and the second casing member (120) are fitted to each other, and the fitting structure is applied to a resin-made casing forming a fluid passage, wherein the first casing member (110) The fitting portion (130) with the second casing member (120) is provided with a fitting groove portion (113) including a pair of facing walls (111, 112) facing each other with a predetermined gap, A fitting protrusion (121) that fits into the fitting groove (113) is provided in a fitting portion (130) of the casing member (120) with the first casing member (110), the first casing When the member (110) and the second casing member (120) are fitted together, the tip (122) of the fitting protrusion (121) has the fitting groove (11).
A fitting structure for a casing, characterized in that it is pressed against the bottom (114) of 3).
【請求項2】 前記嵌合突起部(121)の前記先端
(122)は、前記嵌合部(130)に沿い、連続する
線または連続する幅の狭い面として形成されることを特
徴とする請求項1に記載のケーシングの嵌合構造。
2. The tip (122) of the fitting protrusion (121) is formed as a continuous line or a continuous narrow surface along the fitting part (130). The casing fitting structure according to claim 1.
【請求項3】 前記嵌合突起部(121)の先端平面部
(123)に前記先端(122)を形成したことを特徴
とする請求項1または請求項2に記載のケーシングの嵌
合構造。
3. The casing fitting structure according to claim 1, wherein the tip (122) is formed on a tip flat portion (123) of the fitting protrusion (121).
JP2001354599A 2001-11-20 2001-11-20 Fitting structure for casing Pending JP2003154838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001354599A JP2003154838A (en) 2001-11-20 2001-11-20 Fitting structure for casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001354599A JP2003154838A (en) 2001-11-20 2001-11-20 Fitting structure for casing

Publications (1)

Publication Number Publication Date
JP2003154838A true JP2003154838A (en) 2003-05-27

Family

ID=19166430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001354599A Pending JP2003154838A (en) 2001-11-20 2001-11-20 Fitting structure for casing

Country Status (1)

Country Link
JP (1) JP2003154838A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018193748A1 (en) * 2017-04-17 2018-10-25 株式会社デンソー Air-conditioning case
CN110582420A (en) * 2017-04-17 2019-12-17 株式会社电装 Air conditioner casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018193748A1 (en) * 2017-04-17 2018-10-25 株式会社デンソー Air-conditioning case
CN110582420A (en) * 2017-04-17 2019-12-17 株式会社电装 Air conditioner casing

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