JPH0727446A - Refrigerant heater and method for manufacturing refrigerant heater - Google Patents

Refrigerant heater and method for manufacturing refrigerant heater

Info

Publication number
JPH0727446A
JPH0727446A JP5170622A JP17062293A JPH0727446A JP H0727446 A JPH0727446 A JP H0727446A JP 5170622 A JP5170622 A JP 5170622A JP 17062293 A JP17062293 A JP 17062293A JP H0727446 A JPH0727446 A JP H0727446A
Authority
JP
Japan
Prior art keywords
base material
pipe holding
pipe
fixing plate
refrigerant heater
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.)
Granted
Application number
JP5170622A
Other languages
Japanese (ja)
Other versions
JP3372592B2 (en
Inventor
Kunio Sakai
邦男 酒井
Naozumi Sukegawa
直純 祐川
Miki Fujita
幹 藤田
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP17062293A priority Critical patent/JP3372592B2/en
Publication of JPH0727446A publication Critical patent/JPH0727446A/en
Application granted granted Critical
Publication of JP3372592B2 publication Critical patent/JP3372592B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Other Air-Conditioning Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To facilitate a manufacturing of a refrigerant heater by a method wherein a fixing plate is bent in compliance with a shape of each of pipe holding portions, engaged with the pipe holding portions and a base member has a released end surface to which a discharging gas holder is abutted over its entire circumference. CONSTITUTION:A fixing plate 27 has engaging portions 30, 30. The engaging portions 30, 30 are bent in compliance with a shape of each of the pipe holding portions 24, 24 and contacted so as to enable a heat transfer to be attained. Then, the fixing plate 27 is enaged with the pipe holding portions 24, 24 under utilization of a spring force of each of the engaging portions 30, 30 and held. In addition, a gas discharging header 34 is fixed to the base member 22, a flange 35 is formed at an opening of the gas discharging header 34 substantially around an entire circumference of the opening and then the flange 35 is abutted against a released end surface 36 of the base member 22. Lastly, the gas discharging header 34 is connected to the locations A, A at the base member 22 with screws and the like. With such an arrangement as above, its manufacturing becomes possible in an easy manner.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、例えば、空気調和機に
備えられた冷媒加熱器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 refrigerant heater provided in, for example, an air conditioner and a method for manufacturing the same.

【0002】[0002]

【従来の技術】一般に、空気調和機には、図9に示すよ
うな冷媒加熱器(以下、加熱器と称する)1を備えたも
のがある。すなわち、この加熱器1はスプリット型空気
調和機の室外機2に組込まれており、燃焼機3に連結さ
れている。さらに、加熱器1は、冷媒配管4を介して圧
縮機5、室外熱交換器6、及び、図示しない膨張弁や室
内側熱交換器等と繋がっており、これらの機器とともに
冷媒加熱式の冷凍サイクルを構成している。ここで、図
9中に符号7で示すのは送風機であり、符号8は制御器
ユニットである。
2. Description of the Related Art Generally, some air conditioners include a refrigerant heater (hereinafter referred to as a heater) 1 as shown in FIG. That is, the heater 1 is incorporated in the outdoor unit 2 of the split type air conditioner and is connected to the combustor 3. Further, the heater 1 is connected to a compressor 5, an outdoor heat exchanger 6, and an expansion valve (not shown), an indoor heat exchanger, and the like via a refrigerant pipe 4, and together with these devices, a refrigerant heating type refrigeration system. It constitutes a cycle. Here, reference numeral 7 in FIG. 9 is a blower, and reference numeral 8 is a controller unit.

【0003】加熱器1は、角筒状の母材9と加熱パイプ
10とにより構成されている。母材9の外側の各面に
は、断面U字形のパイプ保持部11…が形成されてお
り、加熱パイプ10は蛇行しながら母材9に外装されて
いる。さらに、加熱パイプ10は、パイプ保持部11の
かしめ溝12に嵌め込まれており、熱の伝達が可能なよ
うにパイプ保持部11にかしめ止めされている。そし
て、加熱パイプ10の両端は冷媒配管4に接続されてお
り、冷凍サイクルの冷媒が加熱パイプ10の一端から他
端へ向かって流通する。
The heater 1 is composed of a base material 9 having a rectangular tube shape and a heating pipe 10. Pipe holding portions 11 having a U-shaped cross section are formed on the respective outer surfaces of the base material 9, and the heating pipe 10 is installed on the base material 9 while meandering. Further, the heating pipe 10 is fitted in the caulking groove 12 of the pipe holding portion 11 and is caulked to the pipe holding portion 11 so that heat can be transferred. Both ends of the heating pipe 10 are connected to the refrigerant pipe 4, and the refrigerant of the refrigeration cycle flows from one end of the heating pipe 10 to the other end.

【0004】母材9には排気ヘッダ13が取付けられて
おり、この排気ヘッダ13は、高温な空気の排出に利用
される。つまり、燃焼機3によって加熱された高温の空
気が母材9の中を通過し、排気ヘッダ13を介して室外
機2の外へ排出される。燃焼機3の発した熱は母材9を
介して加熱パイプ10に伝えられ、加熱パイプ10の中
を流通する冷媒が加熱される。
An exhaust header 13 is attached to the base material 9, and the exhaust header 13 is used to exhaust hot air. That is, the high temperature air heated by the combustor 3 passes through the base material 9 and is discharged to the outside of the outdoor unit 2 via the exhaust header 13. The heat generated by the combustor 3 is transferred to the heating pipe 10 via the base material 9, and the refrigerant flowing through the heating pipe 10 is heated.

【0005】また、図10に示すように、加熱器1には
過熱防止器14が取付けられている。この過熱防止器1
4は平板状の固定板15に温度検知器16を取付けてな
るもので、固定板15は母材9にねじ止めされている。
過熱防止器14は、母材9の温度を固定板15を介して
検出し、温度に応じた電気信号を出力する。
Further, as shown in FIG. 10, an overheat protector 14 is attached to the heater 1. This overheat protector 1
Reference numeral 4 denotes a flat plate-shaped fixed plate 15 to which a temperature detector 16 is attached. The fixed plate 15 is screwed to the base material 9.
The overheat protector 14 detects the temperature of the base material 9 via the fixing plate 15 and outputs an electric signal according to the temperature.

【0006】[0006]

【発明が解決しようとする課題】ところで、上述のよう
な過熱器1は、図11のような工程を経て製造される。
つまり、母材が長尺に押出し成形(ステップα1 )され
たのち、所定の寸法に応じてカット(ステップα2 )さ
れる。さらに、個々の母材9が切削加工(ステップα
3 )され、図12中に示すように、過熱防止器13の取
付用のねじ孔17や排気ヘッダ12を係合させるための
切欠き18が作製される。この後、ねじ孔17がマスキ
ング(ステップα4 )され、母材9が内面処理(ステッ
プα5 )され、加熱パイプ10がパイプ保持部11…に
かしめ止め(ステップα6 )される。
By the way, the above superheater 1 is manufactured through the steps shown in FIG.
That is, the base material is extruded into a long length (step α 1 ) and then cut (step α 2 ) according to a predetermined dimension. Further, the individual base material 9 is cut (step α
3 ) Then, as shown in FIG. 12, a screw hole 17 for mounting the overheat protector 13 and a notch 18 for engaging the exhaust header 12 are formed. Thereafter, the screw holes 17 are masked (step α 4 ), the base material 9 is subjected to inner surface treatment (step α 5 ), and the heating pipe 10 is caulked to the pipe holding portions 11 ... (Step α 6 ).

【0007】しかし、このような従来の製造方法におい
ては、一台ずつカットされた母材9に切削加工が行われ
るため、その分加工工数が多くなる。また、切削加工の
後に内面処理が行われるため、マスキングの段取り工程
が必要であるとともに、処理済の無駄も多く、コスト高
である。本発明の目的とするところは、製造が容易な冷
媒加熱器を提供することにある。
However, in such a conventional manufacturing method, since the base material 9 cut one by one is cut, the number of working steps increases accordingly. Further, since the inner surface treatment is performed after the cutting work, a masking setup process is necessary, and the waste of the treatment is large, resulting in high cost. An object of the present invention is to provide a refrigerant heater that is easy to manufacture.

【0008】[0008]

【課題を解決するための手段および作用】上記目的を達
成するために本発明は、パイプ保持部を有するとともに
排気ヘッダが取付けられる母材と、パイプ保持部にかし
め止めされるとともに冷凍サイクル中の冷媒がその中を
流通する加熱パイプと、固定板に温度検出器を取付けて
なり母材に固定される過熱防止器とを備えた冷媒加熱器
において、固定板がパイプ保持部の形状に合わせて折曲
されてパイプ保持部に係合止めされているとともに、母
材が排気ヘッダを全周に亘って当接させるための開放端
面を有することにある。こうすることによって本発明
は、切削工程やマスキング工程を不要にし、冷媒加熱器
の製造を容易にしたことにある。
In order to achieve the above object, the present invention provides a base material having a pipe holding portion and an exhaust header attached thereto, and a pipe holding portion which is caulked and fixed in a refrigeration cycle. In a refrigerant heater provided with a heating pipe through which a refrigerant flows, and an overheat protector which is fixed to a base material by attaching a temperature detector to a fixing plate, the fixing plate conforms to the shape of the pipe holding portion. It is bent and engaged with the pipe holding portion, and the base material has an open end surface for contacting the exhaust header over the entire circumference. By doing so, the present invention eliminates the need for a cutting process or a masking process and facilitates the manufacture of the refrigerant heater.

【0009】[0009]

【実施例】以下、本発明の一実施例を図1〜図8に基づ
いて説明する。なお、従来の技術の項で説明したものと
重複するものについては同一番号を付し、その説明は省
略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same parts as those described in the section of the prior art are designated by the same reference numerals, and the description thereof will be omitted.

【0010】図1(a)〜(c)は本発明の一実施例を
示すもので、図中の符号21は冷媒加熱器(以下、加熱
器と称する)である。この加熱器21は、共に金属製の
母材22と加熱パイプ10とにより構成されている。母
材22は角筒状に一体成形されており、内側に多数のフ
ィン23…(一点鎖線によって概略的に示している)を
有している。さらに、母材22の外側の各面には複数の
パイプ保持部24…が形成されている。パイプ保持部2
4は断面がU字形のレ−ル状に成形されており、かしめ
溝25を有している。そして、これらのパイプ保持部2
3…は互いに平行に延びている。
1 (a) to 1 (c) show an embodiment of the present invention, in which reference numeral 21 denotes a refrigerant heater (hereinafter referred to as a heater). The heater 21 is composed of a metallic base material 22 and a heating pipe 10. The base material 22 is integrally formed in a rectangular tube shape, and has a large number of fins 23 ... (Schematically indicated by a chain line) inside. Further, a plurality of pipe holding portions 24 ... Is formed on each outer surface of the base material 22. Pipe holder 2
4 is shaped like a rail having a U-shaped cross section and has a caulking groove 25. And these pipe holding parts 2
3 ... run parallel to each other.

【0011】加熱パイプ10は蛇行管であり、直線状に
延びる部分と、U字状に湾曲した部分とを有している。
加熱パイプ10は母材22に外装されており、パイプ保
持部24…のかしめ溝25に嵌め込まれている。さら
に、加熱パイプ24は、熱の伝達が可能なように、パイ
プ保持部10…にかしめ止めされている。また、加熱パ
イプ10の両端は略同一な方向に向けられている。
The heating pipe 10 is a meandering pipe, and has a linearly extending portion and a U-shaped curved portion.
The heating pipe 10 is exteriorly mounted on the base material 22, and is fitted into the caulking groove 25 of the pipe holding portions 24 .... Further, the heating pipe 24 is caulked to the pipe holding portions 10 so that heat can be transferred. Further, both ends of the heating pipe 10 are oriented in substantially the same direction.

【0012】図3及び図4に示すように、加熱器21に
は過熱防止器26が取付けられている。この過熱防止器
26は温度検知器16を有しており、この温度検知器1
6は固定板27を介して母材22に取付けられている。
温度検知器16は固定板27を介して母材22の温度を
検出し、温度に応じた電気信号を出力する。なお、温度
検知器16として、一般的な種々のセンサを採用するこ
とが可能である。
As shown in FIGS. 3 and 4, an overheat protector 26 is attached to the heater 21. This overheat protector 26 has a temperature detector 16, and the temperature detector 1
6 is attached to the base material 22 via a fixing plate 27.
The temperature detector 16 detects the temperature of the base material 22 via the fixing plate 27 and outputs an electric signal according to the temperature. Note that various general sensors can be adopted as the temperature detector 16.

【0013】固定板27は、例えば金属板を折曲して得
られたもので、中間部で略直角に折曲されて、母材22
の側面28と底面29に跨がっている。さらに、固定板
27は係合部30、30を有しており、これら係合部3
0、30はパイプ保持部24、24の形状に合せて湾曲
している。係合部30、30はパイプ保持部24、24
に係合しており、熱の伝達が可能なようにパイプ保持部
24、24に接触している。そして、固定板27は係合
部30、30のばね力を利用してパイプ保持部24、2
4に係合止めされており、二つのパイプ保持部24、2
4によって支持されている。
The fixed plate 27 is obtained by bending a metal plate, for example, and is bent at a substantially right angle in the middle portion to form the base material 22.
Straddling the side surface 28 and the bottom surface 29 of the. Further, the fixing plate 27 has engaging portions 30 and 30, and these engaging portions 3
0 and 30 are curved in accordance with the shape of the pipe holding portions 24 and 24. The engaging portions 30 and 30 are the pipe holding portions 24 and 24.
And is in contact with the pipe holders 24, 24 so that heat can be transferred. Then, the fixing plate 27 utilizes the spring force of the engaging portions 30, 30 to hold the pipe holding portions 24, 2.
4 is engaged with the two pipe holding portions 24, 2
Supported by 4.

【0014】ここで、図3及び図4においては、図面が
繁雑になることを避けるために加熱パイプ10の図示が
省略されている。さらに、加熱パイプ10がパイプ保持
部24、24から突出する場合には、固定板27の係合
部30、30の湾曲形状を、加熱パイプ10の形状も考
慮して決定してもよい。
Here, in FIGS. 3 and 4, the heating pipe 10 is not shown in order to avoid complication of the drawings. Further, when the heating pipe 10 projects from the pipe holding portions 24, 24, the curved shape of the engaging portions 30, 30 of the fixing plate 27 may be determined in consideration of the shape of the heating pipe 10.

【0015】固定板27には、ずれ防止用の突部31が
半球状にエンボス加工されており、この突部31を母材
22の凹部32に係合させることによって、固定板25
の左右方向(側面28と底面29の間のエッジ部33に
沿った方向)のずれが防止されている。
A protrusion 31 for preventing displacement is hemispherically embossed on the fixing plate 27, and the fixing plate 25 is engaged by engaging the protrusion 31 with the recess 32 of the base material 22.
In the left-right direction (the direction along the edge portion 33 between the side surface 28 and the bottom surface 29) is prevented.

【0016】図6に示すように、母材22には排気ヘッ
ダ34が取付けられる。排気ヘッダ34の開口部にはフ
ランジ35が略全周に亘って形成されており、排気ヘッ
ダ34はこのフランジ35を母材22の開放端面36に
当接させる。そして、排気ヘッダ34は母材22にねじ
等の固定手段によって、矢印A、Aで示すように連結さ
れる。
As shown in FIG. 6, an exhaust header 34 is attached to the base material 22. A flange 35 is formed in the opening of the exhaust header 34 over substantially the entire circumference thereof, and the exhaust header 34 brings the flange 35 into contact with the open end surface 36 of the base material 22. The exhaust header 34 is connected to the base material 22 by a fixing means such as a screw as shown by arrows A and A.

【0017】図7は、上述の加熱器21の製造方法を示
している。まず、母材が長尺に押出し成形(ステップβ
1 )されたのち、得られた押出し母材37が内面処理
(ステップβ2 )される。この後、図8に示すように、
押出し母材34が所定の寸法に応じてカット(ステップ
β3 )される。図8中のL1は押出し母材34の前長を
表しており、L2 は所望の母材22の長さ寸法を表して
いる。そして、加熱パイプ10が母材22組付けられ、
パイプ保持部23…にかしめ止め(ステップα4 )され
る。
FIG. 7 shows a method of manufacturing the heater 21 described above. First, the base material is extruded into a long length (step β
After 1 ), the extruded base material 37 obtained is subjected to inner surface treatment (step β 2 ). After this, as shown in FIG.
The extruded base material 34 is cut (step β 3 ) according to a predetermined size. In FIG. 8, L 1 represents the front length of the extruded base material 34, and L 2 represents the desired length of the base material 22. Then, the heating pipe 10 is assembled with the base material 22,
The pipe holding portions 23 ... Are caulked (step α 4 ).

【0018】ここで、押出し成形や内面処理の際には、
一般的な種々の方法を採用することが可能である。上述
のような加熱器21においては、過熱防止器14のため
の固定板27が母材22に係合止めされているので、固
定板27の取付けのためにねじを用いたり、母材22ね
じ孔を設けたりする必要がない。また、排気ヘッダ34
がフランジ35を母材22の開放端面36に当接させて
母材22に取付けられているので、排気ヘッダ31を母
材22に係合させるための大きな切欠きを設ける必要が
ない。そして、これらのことにより、母材22の切削加
工が不要になり、切削工程を省略することが可能にな
る。したがって、加熱器21の製造工数が低減し、加熱
器21の製造が容易になるとともに、低コスト化が可能
になる。
Here, during extrusion molding and inner surface treatment,
Various general methods can be adopted. In the heater 21 as described above, the fixing plate 27 for the overheat protector 14 is engaged with the base material 22, so that a screw is used for attaching the fixing plate 27 or a screw for the base material 22 is used. There is no need to provide holes. Also, the exhaust header 34
Is attached to the base material 22 by bringing the flange 35 into contact with the open end surface 36 of the base material 22, it is not necessary to provide a large notch for engaging the exhaust header 31 with the base material 22. Then, by these things, the cutting process of the base material 22 becomes unnecessary, and the cutting process can be omitted. Therefore, the number of manufacturing steps of the heater 21 is reduced, the heater 21 is easily manufactured, and the cost can be reduced.

【0019】また、切削工程が不要であるので、寸法カ
ット前の押出し母材37に直接内面処理を施すことがで
き、寸法カット後に各母材を内面処理した場合に比べ
て、処理時間を短縮することができる。さらに、固定板
27のためのねじ孔や排気ヘッダ34のための切欠きが
無いので、内面処理の際にマスキングを行う必要がな
い。そして、これらのことから、段取りの簡略化及び内
面処理済みの無駄の削減を図ることができる。
Further, since the cutting step is not required, the inner surface of the extruded base material 37 before the dimension cutting can be directly processed, and the processing time can be shortened as compared with the case where the inner surface of each base material is treated after the dimension cutting. can do. Furthermore, since there is no screw hole for the fixing plate 27 and a cutout for the exhaust header 34, it is not necessary to perform masking during the inner surface treatment. From the above, it is possible to simplify the setup and reduce waste after the inner surface treatment.

【0020】また、加熱器21の製造に必要な工程が少
ないので、母材の押出しから寸法カットまでの工程を大
幅に削減できる。このため、低コスト化及び製作納期の
短縮を図ることができる。さらに、過熱防止器26の固
定板27が母材22に係合止めされているので、過熱防
止器26の着脱が容易である。
Further, since the number of steps required for manufacturing the heater 21 is small, the steps from extrusion of the base material to dimension cutting can be significantly reduced. Therefore, it is possible to reduce the cost and shorten the production delivery time. Further, since the fixing plate 27 of the overheat protector 26 is engaged with the base material 22, the overheat protector 26 can be easily attached and detached.

【0021】[0021]

【発明の効果】以上説明したように本発明は、パイプ保
持部を有するとともに排気ヘッダが取付けられる母材
と、パイプ保持部にかしめ止めされるとともに冷凍サイ
クル中の冷媒がその中を流通する加熱パイプと、固定板
に温度検出器を取付けてなり母材に固定される過熱防止
器とを備えた冷媒加熱器において、固定板がパイプ保持
部の形状に合わせて折曲されてパイプ保持部に係合止め
されているとともに、母材が排気ヘッダを全周に亘って
当接させるための開放端面を有するものである。こうす
ることによって本発明は、冷媒加熱器を容易に製造でき
るという効果がある。
As described above, according to the present invention, the base material having the pipe holding portion and the exhaust header is attached, and the heating which is caulked to the pipe holding portion and through which the refrigerant in the refrigeration cycle flows. In a refrigerant heater equipped with a pipe and an overheat protector which is fixed to a base material by mounting a temperature detector on the fixing plate, the fixing plate is bent to match the shape of the pipe holding part and becomes a pipe holding part. In addition to being engaged, the base material has an open end surface for contacting the exhaust header over the entire circumference. By doing so, the present invention has an effect that the refrigerant heater can be easily manufactured.

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

【図1】本発明の一実施例の冷媒加熱器を示すもので、
(a)は正面図、(b)は側面図、(c)は平面図。
FIG. 1 shows a refrigerant heater according to an embodiment of the present invention,
(A) is a front view, (b) is a side view, and (c) is a plan view.

【図2】本発明の一実施例の冷媒加熱器の母材を示すも
ので、(a)は正面図、(b)は側面図、(c)は平面
図。
FIG. 2 shows a base material of a refrigerant heater according to an embodiment of the present invention, (a) is a front view, (b) is a side view, and (c) is a plan view.

【図3】過熱防止器の取付けを説明する図。FIG. 3 is a view for explaining how to install an overheat protector.

【図4】過熱防止器の取付け箇所を拡大して示す説明
図。
FIG. 4 is an explanatory view showing, in an enlarged manner, a mounting location of an overheat protector.

【図5】加熱防止器を示す斜視図。FIG. 5 is a perspective view showing a heating preventer.

【図6】排気ヘッダの取付けを示す説明図。FIG. 6 is an explanatory view showing the attachment of an exhaust header.

【図7】冷媒加熱器の製造方法を示すフロ−チャ−ト。FIG. 7 is a flowchart showing a method for manufacturing a refrigerant heater.

【図8】押出し母材の寸法カットの工程を示す説明図。FIG. 8 is an explanatory view showing a step of dimension cutting of the extruded base material.

【図9】一般的な室外機の内部を示す構成図。FIG. 9 is a configuration diagram showing the inside of a general outdoor unit.

【図10】過熱防止器の取付け箇所を拡大して示す斜視
図。
FIG. 10 is an enlarged perspective view showing a mounting location of an overheat protector.

【図11】従来の冷媒加熱器の製造方法を示すフロ−チ
ャ−ト。
FIG. 11 is a flowchart showing a method for manufacturing a conventional refrigerant heater.

【図12】冷媒加熱器の母材を示す正面図。FIG. 12 is a front view showing a base material of the refrigerant heater.

【符号の説明】[Explanation of symbols]

10…加熱パイプ、16…温度検知器、21…冷媒加熱
器、22…母材、24…パイプ保持部、26…過熱防止
器、27…固定板、34…排気ヘッダ、36…開放端
面。
10 ... Heating pipe, 16 ... Temperature detector, 21 ... Refrigerant heater, 22 ... Base material, 24 ... Pipe holding part, 26 ... Overheat protector, 27 ... Fixing plate, 34 ... Exhaust header, 36 ... Open end face.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 パイプ保持部を有するとともに排気ヘッ
ダが取付けられる母材と、上記パイプ保持部にかしめ止
めされるとともに冷凍サイクル中の冷媒がその中を流通
する加熱パイプと、固定板に温度検出器を取付けてなり
上記母材に固定される過熱防止器とを備えた冷媒加熱器
において、上記固定板が上記パイプ保持部の形状に合わ
せて折曲されて上記パイプ保持部に係合止めされている
とともに、上記母材が上記排気ヘッダを全周に亘って当
接させるための開放端面を有することを特徴とする冷媒
加熱器。
1. A base material having a pipe holding portion to which an exhaust header is attached, a heating pipe which is caulked to the pipe holding portion and through which a refrigerant in a refrigeration cycle flows, and a fixed plate for temperature detection. In a refrigerant heater having an overheat protector which is attached to the base material and fixed to the base material, the fixing plate is bent according to the shape of the pipe holding part and is engaged with the pipe holding part. In addition, the base material has an open end surface for contacting the exhaust header over the entire circumference.
【請求項2】 長尺な押出し母材を押出し成形する第1
の工程と、上記押出し母材に内面処理を施す第2の工程
と、上記押出し母材を所定の寸法にカットして冷媒加熱
器用の母材を得る第3の工程と、上記母材に加熱パイプ
をかしめ止めする第4の工程とを具備した冷媒加熱器の
製造方法。
2. A first extruding method for extruding a long extruded base material.
And a second step of subjecting the extruded base material to an inner surface treatment, a third step of cutting the extruded base material into a predetermined size to obtain a base material for a refrigerant heater, and heating the base material. A method for manufacturing a refrigerant heater, comprising a fourth step of caulking a pipe.
JP17062293A 1993-07-09 1993-07-09 Refrigerant heater Expired - Fee Related JP3372592B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17062293A JP3372592B2 (en) 1993-07-09 1993-07-09 Refrigerant heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17062293A JP3372592B2 (en) 1993-07-09 1993-07-09 Refrigerant heater

Publications (2)

Publication Number Publication Date
JPH0727446A true JPH0727446A (en) 1995-01-27
JP3372592B2 JP3372592B2 (en) 2003-02-04

Family

ID=15908293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17062293A Expired - Fee Related JP3372592B2 (en) 1993-07-09 1993-07-09 Refrigerant heater

Country Status (1)

Country Link
JP (1) JP3372592B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017198437A (en) * 2016-04-20 2017-11-02 株式会社ノーリツ Heat exchanger and water heating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017198437A (en) * 2016-04-20 2017-11-02 株式会社ノーリツ Heat exchanger and water heating system

Also Published As

Publication number Publication date
JP3372592B2 (en) 2003-02-04

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