JP2004513832A - Heat exchanger for vehicle auxiliary heater - Google Patents

Heat exchanger for vehicle auxiliary heater Download PDF

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Publication number
JP2004513832A
JP2004513832A JP2002542813A JP2002542813A JP2004513832A JP 2004513832 A JP2004513832 A JP 2004513832A JP 2002542813 A JP2002542813 A JP 2002542813A JP 2002542813 A JP2002542813 A JP 2002542813A JP 2004513832 A JP2004513832 A JP 2004513832A
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heat exchanger
wall
temperature sensor
discharge pipe
annular chamber
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ステファン　ハビヤネク
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ベバスト　テルモジスティーム　インターナツィオナール　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body

Abstract

本発明は、燃焼室（１７）が熱交換器（１０）によって取り囲まれている暖房装置、特に車両補助ヒータ用の熱交換器に関する。この熱交換器は熱交換器内側部材（１２）と熱交換器外側部材（１１）によって画成された環状室（１３）を備えている。この環状室（１３）内には、流入管から液状の熱媒体が供給され、排出管（１４）を経て熱媒体が排出される。熱交換器は更に、熱媒体の温度を検出するための温度センサ（２２）を備えている。この温度センサ（２２）は排出管（１４）の開口の範囲において環状室（１３）内に配置されている。製作コストおよび組立てコストを節約するため、並びに特別なシール手段を不要にするために、本発明に従い、温度センサ（２２）が排出管（１４）およびまたは熱交換器外側部材（１１）の壁部くぼみ（１８）内に配置され、この壁部くぼみ（１８）が排出管（１４）または環状室（１３）内に突出している。
【選択図】図１The invention relates to a heating device in which the combustion chamber (17) is surrounded by a heat exchanger (10), in particular a heat exchanger for a vehicle auxiliary heater. The heat exchanger has an annular chamber (13) defined by a heat exchanger inner member (12) and a heat exchanger outer member (11). Into the annular chamber (13), a liquid heat medium is supplied from an inflow pipe, and the heat medium is discharged through a discharge pipe (14). The heat exchanger further includes a temperature sensor (22) for detecting a temperature of the heat medium. This temperature sensor (22) is arranged in the annular chamber (13) in the area of the opening of the discharge pipe (14). According to the invention, in order to save production and assembly costs, and to eliminate the need for special sealing means, the temperature sensor (22) is connected to the outlet pipe (14) and / or the wall of the heat exchanger outer member (11). Located in a recess (18), the wall recess (18) projects into the discharge pipe (14) or into the annular chamber (13).
[Selection diagram] Fig. 1

Description

本発明は、請求項１の前提部分に記載した車両補助ヒータ用の熱交換器に関する。
【０００１】
例えば、ドイツ連邦共和国特許出願公開第３８３９２４４号公報（図３）によって公知であるこの種の熱交換器の場合、今までは、温度センサのセンサ尖端部が熱媒体内に達するように、温度センサを熱交換器のねじにねじ込むことが一般的であった。この温度センサは、熱交換器に対してＯリングによってシールされる。温度センサは、固有のケーシングとその中に挿入された電気的な測定センサ部を有する組立て済みの部品を形成している。この場合、ねじも、温度センサのＯリング用シール面も、熱交換器に切削加工しなければならないという欠点がある。更に、温度センサを熱交換器に取付けることができるようにするために、温度センサを組立てて固有のケーシングに装備しなければならないという欠点がある。
【０００２】
本発明の課題は、特別なシール手段を用いないで熱媒体温度センサを簡単に取付けることができるように、冒頭に述べた種類の熱交換器を形成することである。
【０００３】
この課題は請求項１記載の特徴によって解決される。本発明の有利な実施形は従属請求項に記載されている。
【０００４】
技術水準と異なり、本発明では、温度センサを熱媒体内に直接浸漬するように配置しないで、温度センサを熱交換器または排出管の外側壁部のくぼみ内に配置する。このくぼみは熱媒体内に達し、熱媒体がこのくぼみの周りを流れる。この手段は、技術水準の場合に熱交換器に切削加工して形成しなければならないねじやシール面を省略することができるという利点がある。なぜなら、温度センサが熱交換器の外壁を貫通しないで、壁部くぼみに収容されるからである。この壁部くぼみは壁部に一体に形成された温度センサ用収容機構を形成する。本発明に従って、熱媒体内に達する壁部くぼみ内に温度センサを配置すると更に、技術水準の場合のようなシール手段を省略することができるという利点がある。
【０００５】
このような壁部くぼみは熱交換器の鋳造の際に熱交換器と一緒に一体的に製作されるので、温度センサを壁部くぼみに差し込んでそこに固定するだけでよい。この固定は例えば温度センサのメーカーでシール材すなわちシーリング材によって行われる。
【０００６】
鋳造時に、壁部くぼみを薄壁状に形成するための手段を講じることができる。この場合、熱伝達が熱媒体からくぼみの薄い壁を経て温度センサにできるだけ最適に行われるように、壁部くぼみが薄壁状に形成されている。
【０００７】
温度センサのセンサ端部が、壁部くぼみを形成する止まり穴の底部すなわち端部に取付けられていると有利である。
【０００８】
壁部くぼみは排出管と熱交換器の外壁との間の範囲内に配置されている。いずれにせよ、排出管の壁または熱交換器外壁は壁部くぼみの一部を形成している。
【０００９】
温度センサ用の挿入端部を除いて、壁部くぼみの周りを熱媒体が流れると有利である。それによって、この熱媒体の熱が壁部くぼみに挿入された温度センサに迅速に伝達される。
【００１０】
次に、図に基づいて本発明を例示的に詳しく説明する。
【００１１】
熱交換器１０は、コップ状の熱交換器外側部材１１とコップ状の熱交換器内側部材１２とからなっている。この熱交換器内側部材１１は、両部材１１、１２の間に環状室１３が形成されるように熱交換器外側部材１１に挿入されている。この環状室１３は液状の熱媒体を収容する働きをする。この熱媒体は、図示していない流入管から環状室１３に供給され、排出管１４を経てこの環状室から排出される。
【００１２】
コップ状の両部材１１、１２はフランジ状に形成されたそのエッジの範囲において、横断面がＶ字状の締付けリング１５によって互いに固定されている。締付けリング１５は更に、バーナー／ファン装置のフランジ端部を取り囲んでいる。このバーナー／ファン装置は図において全体が参照数字１６によって示してあり、燃焼室１７を有するバーナーを備えている。この燃焼室は熱交換器１０内に同軸に挿入され、かつ熱交換器に対して固定されている。
【００１３】
排出管１４は、熱交換器１０の熱交換器外側部材１１と共に鋳物部品として一体に形成されている。熱交換器１０の熱交換器外側部材１１と排出管１４の間の範囲に、壁部くぼみ１８が形成されていると有利である。この壁部くぼみ１８は、好ましくは内側に突出する排出管１４の壁部分にあるいは排出管１４の範囲内にある熱交換器外側部材１１の部分の内側に突出する壁部分に止まり穴として形成されている。特に好ましい実施の形態では、壁部くぼみ１８は、排出管１４の自由横断面の約半分まで突出する、熱交換器外側部材１１の壁部分１９によって画成されている。壁部くぼみ１８は他方では、排出管１４の一部を形成しかつ熱交換器外側部材１１の壁部分１９に対して平行に延びる壁部分２０によって画成されている。この壁部分２０は、両壁部分１９、２０に対して横方向に延びる底部２１によって、壁部分１９に接続されている。
【００１４】
壁部くぼみ１８によって形成された止まり穴は、温度センサを収容する働きをする。この温度センサは、全体が参照数字２２によって示してあり、例えば球状のセンサ機構２３を備えている。このセンサ機構２３は、温度センサ２２を組み込んだ状態で止まり穴端部すなわち壁部くぼみ１８の底部２１に隣接している。センサ機構２３のこの位置と、熱媒体内に達する壁部くぼみ１８の位置とによって、温度センサ２２は壁部くぼみ１８の壁部分１９、２０と底部２１を介して熱媒体に間接的に接触し、それによって熱媒体の温度を迅速に検出可能である。特に、当該の壁部分１９または２０と底部２１が比較的に薄い壁状に形成されているときに迅速に検出可能である。
【００１５】
温度センサ２２は固定のために、壁部くぼみ１８の止まり穴内でシーリング材２６によって固定されている。このシーリング材２６は、センサの汚染を防止し、更に水しぶきに対して温度センサ２２と接続範囲２４、２５を封じ込めて保護する。
【００１６】
図２に変形では、温度センサ２２用の壁部くぼみ２８が熱交換器１０の熱交換器外側部材１１の壁部分２９に配置されている。この壁部分２９はほぼ円筒形に形成されているが、その代わりに直方体または立方体に形成してもよい。その際、くぼみ２８は図１と異なり、排出管１４の開口部から離隔されている。
【図面の簡単な説明】
【図１】
排出管の壁の範囲内に配置された温度センサを有する熱交換器１０の半部の部分縦断面図である。
【図２】
熱交換器外側部材の壁の範囲内に配置された温度センサを有する、図１の変形を示す図である。
【符号の説明】
１０…熱交換器、１１…熱交換器外側部材、１２…熱交換器内側部材、１３…中間室、１４…排出管、１５…締付けリング、１６…バーナー／ファン装置、１７…燃焼室、１８…壁部くぼみ、１９…壁部分、２０…壁部分、２１…底部、２２…温度センサ、２３…センサ機構、２４…接続線、２５…接続線、２６…シーリング材、２８…壁部くぼみ、２９…壁部分The invention relates to a heat exchanger for a vehicle auxiliary heater according to the preamble of claim 1.
[0001]
For example, in the case of this type of heat exchanger known from DE-A 38 39 244 (FIG. 3), it has heretofore been known that the temperature sensor has a sensor tip which extends into the heat transfer medium. It was common to screw into a heat exchanger screw. This temperature sensor is sealed by an O-ring to the heat exchanger. The temperature sensor forms an assembled part with its own casing and an electrical measuring sensor part inserted therein. In this case, there is a disadvantage that both the screw and the sealing surface for the O-ring of the temperature sensor must be cut into the heat exchanger. A further disadvantage is that the temperature sensor must be assembled and mounted on its own casing in order to be able to mount the temperature sensor on the heat exchanger.
[0002]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat exchanger of the type mentioned at the outset, so that a heat medium temperature sensor can be easily installed without special sealing means.
[0003]
This object is achieved by the features of claim 1. Advantageous embodiments of the invention are described in the dependent claims.
[0004]
Unlike the state of the art, according to the invention, the temperature sensor is not arranged to be directly immersed in the heating medium, but rather is arranged in a recess in the outer wall of the heat exchanger or the discharge pipe. The depression reaches into the heating medium, and the heating medium flows around the depression. This measure has the advantage that the screws and sealing surfaces which have to be formed by cutting the heat exchanger in the state of the art can be omitted. This is because the temperature sensor does not penetrate the outer wall of the heat exchanger and is housed in the wall recess. The wall recess forms a temperature sensor storage mechanism integrally formed with the wall. The arrangement according to the invention of the temperature sensor in the wall recess reaching the heating medium has the further advantage that the sealing means as in the prior art can be omitted.
[0005]
Since such a wall recess is produced integrally with the heat exchanger during the casting of the heat exchanger, it is only necessary to insert the temperature sensor into the wall recess and fix it there. This fixing is performed, for example, by a sealant, ie, a sealant, by a manufacturer of the temperature sensor.
[0006]
During casting, measures can be taken to form the wall recesses into thin walls. In this case, the wall recess is formed in a thin wall shape so that the heat transfer is performed as optimally as possible from the heat medium to the temperature sensor via the thin wall of the recess.
[0007]
Advantageously, the sensor end of the temperature sensor is mounted at the bottom or end of a blind hole forming a wall recess.
[0008]
The wall recess is located in the area between the discharge pipe and the outer wall of the heat exchanger. In any case, the wall of the discharge pipe or the outer wall of the heat exchanger forms part of the wall recess.
[0009]
Except for the insertion end for the temperature sensor, it is advantageous if the heat carrier flows around the wall recess. Thereby, the heat of the heat carrier is quickly transferred to the temperature sensor inserted in the wall recess.
[0010]
Next, the present invention will be described in detail with reference to the drawings.
[0011]
The heat exchanger 10 includes a cup-shaped heat exchanger outer member 11 and a cup-shaped heat exchanger inner member 12. The heat exchanger inner member 11 is inserted into the heat exchanger outer member 11 such that an annular chamber 13 is formed between the two members 11 and 12. The annular chamber 13 functions to accommodate a liquid heat medium. The heat medium is supplied to the annular chamber 13 from an inflow pipe (not shown), and is discharged from the annular chamber via a discharge pipe 14.
[0012]
The two cup-shaped members 11, 12 are fixed to each other by a clamping ring 15 having a V-shaped cross section in the area of the flange-shaped edge. The clamping ring 15 further surrounds the flange end of the burner / fan device. The burner / fan device is indicated generally by the reference numeral 16 in the figures and comprises a burner having a combustion chamber 17. The combustion chamber is coaxially inserted into the heat exchanger 10 and is fixed with respect to the heat exchanger.
[0013]
The discharge pipe 14 is formed integrally with the heat exchanger outer member 11 of the heat exchanger 10 as a cast part. Advantageously, a wall recess 18 is formed in the area of the heat exchanger 10 between the heat exchanger outer member 11 and the discharge pipe 14. This wall recess 18 is preferably formed as a blind hole in the wall part of the discharge pipe 14 projecting inward or in the wall part projecting inward of the part of the heat exchanger outer member 11 which lies within the discharge pipe 14. ing. In a particularly preferred embodiment, the wall recess 18 is defined by a wall portion 19 of the heat exchanger outer member 11 which projects to about half of the free cross section of the discharge pipe 14. The wall recess 18, on the other hand, forms a part of the outlet tube 14 and is defined by a wall portion 20 that extends parallel to the wall portion 19 of the heat exchanger outer member 11. This wall part 20 is connected to the wall part 19 by a bottom 21 extending transversely to the two wall parts 19, 20.
[0014]
The blind hole formed by the wall recess 18 serves to accommodate a temperature sensor. This temperature sensor is generally indicated by the reference numeral 22 and comprises, for example, a spherical sensor mechanism 23. The sensor mechanism 23 is adjacent to the end of the blind hole, that is, the bottom 21 of the wall recess 18 with the temperature sensor 22 incorporated therein. Due to this position of the sensor mechanism 23 and the position of the wall recess 18 reaching into the heating medium, the temperature sensor 22 makes indirect contact with the heating medium via the wall portions 19, 20 and the bottom 21 of the wall recess 18. , Whereby the temperature of the heating medium can be quickly detected. In particular, when the wall portion 19 or 20 and the bottom portion 21 are formed in a relatively thin wall shape, it can be quickly detected.
[0015]
The temperature sensor 22 is fixed by a sealing material 26 in a blind hole of the wall recess 18 for fixing. The sealing material 26 prevents contamination of the sensor and also protects the temperature sensor 22 and the connection areas 24, 25 by splashing.
[0016]
In a variant according to FIG. 2, a wall recess 28 for the temperature sensor 22 is arranged in a wall portion 29 of the heat exchanger outer member 11 of the heat exchanger 10. The wall portion 29 is formed in a substantially cylindrical shape, but may be formed in a rectangular parallelepiped or a cube instead. At this time, the depression 28 is separated from the opening of the discharge pipe 14 unlike FIG.
[Brief description of the drawings]
FIG.
FIG. 3 is a partial longitudinal section of a half of a heat exchanger 10 having a temperature sensor located within the wall of the discharge pipe.
FIG. 2
FIG. 2 shows a variant of FIG. 1 with a temperature sensor located within the wall of the heat exchanger outer member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Heat exchanger, 11 ... Heat exchanger outer member, 12 ... Heat exchanger inner member, 13 ... Intermediate chamber, 14 ... Discharge pipe, 15 ... Tightening ring, 16 ... Burner / fan unit, 17 ... Combustion chamber, 18 ... wall recess, 19 ... wall portion, 20 ... wall portion, 21 ... bottom, 22 ... temperature sensor, 23 ... sensor mechanism, 24 ... connection wire, 25 ... connection wire, 26 ... sealing material, 28 ... wall recess 29 ... wall part

Claims (4)

燃焼室（１７）が熱交換器（１０）によって取り囲まれている車両補助ヒータ用の熱交換器であって、
熱交換器外側部材（１１）によって画成された環状室（１３）が備えられ、この環状室内に液状の熱媒体が供給され、排出管（１４）を経て熱媒体が排出され、更に熱媒体の温度を検出するための温度センサ（２２）が備えられ、この温度センサが液状熱媒体に対して熱伝導的に接続されて配置されている、熱交換器において、
温度センサ（２２）が排出管（１４）の壁部（１９）または熱交換器外側部材（１１）の壁部（２９）の壁部くぼみ（１８）内に配置され、この壁部くぼみが排出管（１４）内に突出しているかあるいは排出管（１４）の開口の範囲内において環状室（１３）内に突出していることを特徴とする熱交換器。A heat exchanger for a vehicle auxiliary heater, wherein the combustion chamber (17) is surrounded by the heat exchanger (10),
An annular chamber (13) defined by a heat exchanger outer member (11) is provided. A liquid heat medium is supplied into the annular chamber, and the heat medium is discharged through a discharge pipe (14). A temperature sensor (22) for detecting the temperature of the heat exchanger, wherein the temperature sensor is arranged in a thermally conductive manner with respect to the liquid heating medium,
A temperature sensor (22) is arranged in the wall recess (18) of the wall (19) of the discharge pipe (14) or the wall (29) of the heat exchanger outer member (11), and this wall recess is discharged. A heat exchanger characterized in that it projects into the pipe (14) or into the annular chamber (13) within the opening of the discharge pipe (14). 壁部くぼみ（１８）が止まり穴によって形成され、この止まり穴の端部に、温度センサ（２２）のセンサ機構（２３）が接していることを特徴とする請求項１記載の熱交換器。The heat exchanger according to claim 1, characterized in that the wall recess (18) is formed by a blind hole, and a sensor mechanism (23) of the temperature sensor (22) is in contact with an end of the blind hole. 温度センサ（２２）がシーリング材（２６）によって壁部くぼみ（１８）内で固定されていることを特徴とする請求項１または２記載の熱交換器。Heat exchanger according to claim 1 or 2, characterized in that the temperature sensor (22) is fixed in the wall recess (18) by a sealing material (26). 排出管（１４）内に達する壁部くぼみ（１８）が熱交換器外側部材（１１）の壁部（１９）の外面に直に接しており、この外面が壁部くぼみ（１８）を画成し、排出管の自由横断面内に突出していることを特徴とする請求項１〜３のいずれか一つに記載の熱交換器。A wall recess (18) reaching into the discharge pipe (14) is in direct contact with the outer surface of the wall (19) of the heat exchanger outer member (11), which outer surface defines a wall recess (18). The heat exchanger according to any one of claims 1 to 3, wherein the heat exchanger protrudes into a free cross section of the discharge pipe.
JP2002542813A 2000-11-15 2001-11-08 Heat exchanger for vehicle auxiliary heater Pending JP2004513832A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056620A DE10056620C1 (en) 2000-11-15 2000-11-15 Heat exchanger for automobile auxiliary heating device has temperature sensor for detecting temperature of heat transfer medium fitted in indent in heat exchanger wall
PCT/EP2001/012915 WO2002040928A1 (en) 2000-11-15 2001-11-08 Heat exchanger for an auxiliary automotive heater

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KR (1) KR20020068066A (en)
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Publication number Priority date Publication date Assignee Title
JP2011069543A (en) * 2009-09-25 2011-04-07 Sharp Corp Heat exchanger and air conditioner mounted with the same
CN103423864A (en) * 2013-08-07 2013-12-04 无锡市凯龙汽车设备制造有限公司 Heater applied to automobile fuel oil or fuel gas heating system

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DE10226081B4 (en) * 2002-06-12 2005-11-03 J. Eberspächer GmbH & Co. KG The heat exchanger assembly
WO2004001300A1 (en) * 2002-06-20 2003-12-31 Webasto Thermosysteme Gmbh Heat-generating apparatus having a special arrangement of the temperature sensor and method for controlling said apparatus
DE102004043832B4 (en) * 2004-09-10 2006-07-27 Robert Bosch Gmbh Method for measuring temperature in a heat exchanger
CN102455055B (en) * 2010-10-19 2013-10-02 威图电子机械技术(上海)有限公司 Heat exchanger heating device
DE102016202578A1 (en) * 2016-02-19 2017-08-24 Vaillant Gmbh Heater core

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US3996070A (en) * 1974-11-22 1976-12-07 Nasa Thermocouple installation
DE3839244C2 (en) * 1988-02-24 1993-12-09 Webasto Ag Fahrzeugtechnik Heater, in particular vehicle auxiliary heater
DE9307564U1 (en) * 1993-05-18 1993-10-07 Honsberg & Co Kg Flow switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011069543A (en) * 2009-09-25 2011-04-07 Sharp Corp Heat exchanger and air conditioner mounted with the same
CN103423864A (en) * 2013-08-07 2013-12-04 无锡市凯龙汽车设备制造有限公司 Heater applied to automobile fuel oil or fuel gas heating system

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KR20020068066A (en) 2002-08-24
WO2002040928A1 (en) 2002-05-23
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DE10056620C1 (en) 2002-05-08
CN1561443A (en) 2005-01-05

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