CN1178896A - Condenser for vehicle air conditioning system - Google Patents
Condenser for vehicle air conditioning system Download PDFInfo
- Publication number
- CN1178896A CN1178896A CN 97118012 CN97118012A CN1178896A CN 1178896 A CN1178896 A CN 1178896A CN 97118012 CN97118012 CN 97118012 CN 97118012 A CN97118012 A CN 97118012A CN 1178896 A CN1178896 A CN 1178896A
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- CN
- China
- Prior art keywords
- condenser
- pipe
- conditioning system
- section
- comb
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/007—Condensers
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
A condenser for a vehicle air conditioning system is provided with at least one row of pipes (12, 12a, 12b) fixed to a group of fins (14) through mechanical expansion, a pair of pipes (12a, 12b) positioned at both ends of the row have circular section and a plurality of pipes (12) located inside the row have an oval sectional shape.
Description
The present invention relates to a kind of condenser that is used for Vehicular air conditioning system.
Or rather, the present invention relates to a kind of mechanical assembly type condenser, it comprises at least one comb, and these pipes are fixed on the heat sink assembly of general flat by the mechanical expansion of pipe after inserting in the hole that is arranged on the fin.
Because the residing condition of work of condenser of automotive air-conditioning system is very abominable, thus, they are the very special heat exchangers of a class.By disconnecting before this system inserts, the pressure in the pipe can reach the force value of 30 crust a security system.The operating temperature of condenser reaches 120 ℃～140 ℃ of peaks.These working conditions have been distinguished the architectural characteristic of other type heat exchanger in a condenser and the existing vehicle substantially.
The pipe racks that is used by the condenser of braze-welding assembly technology production has a plurality of microguides of being separated by wall or fin, and it can make pipe stand the abominable condition of work in position and can not suffer permanent deformation or damage, does not make cooling agent leak into the outside.Although the condenser of this type has best performance on heat-exchange capacity and structural strength, their disadvantageous one sides are that cost is very high.
The condenser of machinery assembling is lower than the condenser cost of braze-welding assembling, but heat exchanger effectiveness is low usually.This mainly is because the pipe racks that mechanical assembly technology uses has circular cross-section, and the higher pressure that constant shape makes pipe to bear to occur in the system.Yet the shape of pipe has also greatly worsened the heat exchange performance of condenser.
Application documents EP-A-0 633 435 has described the condenser with the assembling of ellipse garden tee section pipe machinery.The pipe of this form has improved the performance of condenser with regard to rate of heat exchange greatly.Yet the pipe of elliptic cross-section has brought the problem of structural strength again.Compare with the pipe that has circular cross-section, by adopting the special size of the whole assembling of fin, above-mentioned file EP-A-0 633 435 has solved the low problem of the structural strength that has the elliptic cross-section pipe.
The structure of described heat exchanger has shown best experimental result and can bear heat and mechanical stress under the normality that produces between the operating period of vehicle in this document.
Yet experiment shows that the viewpoint from structural strength has critical point, when particularly in the laboratory condenser being experimentized, is promptly using under the more huge strong condition of stress that produces in the process of condenser than vehicle.
Especially, laboratory experiment, especially the pulse result of experiment shows, the weak spot of existence can be damaged.A typical experiment of this pattern makes this condenser can reach about 100 ℃ temperature, and these pipes are pressurizeed internally by the pressure that can alternately change, wherein this pressure limit that can alternately change is between 5 and 30 crust, and frequency is the 0.5-3 hertz.
The object of the present invention is to provide the improved machinery assembling condenser that has elliptic cross-section, even under the pulse experiment condition, also can eliminate or reduce ruined danger.
According to the present invention, the objective of the invention is to realize by a heat exchanger that forms principal right requirement theme feature.
Or rather, have been noted that the pipe that is positioned at the two ends of a comb is most possible ruined position at the pulse duration of test.
According to the present invention, in order to overcome this defective, the pipe that has a circular cross-section is used in the two ends of a comb and the pipe that has an elliptic cross-section is used in the inside of a comb.
According to this characteristic, bigger fin assembled construction intensity is to have by means of the radial deformation to pipe at the two ends of a comb to realize at the pipe of the circular cross-section of resistance in bigger.
Further feature and advantage of the present invention will be done more detailed description according to infinite example and with reference to accompanying drawing.
Fig. 1 is the perspective view of condenser of the present invention,
Fig. 2 is the perspective view of the condenser of Fig. 1, and
Fig. 3 is the plane of condenser one end parts.
With reference to accompanying drawing, a condenser that is used for Vehicular air conditioning system is labeled as 10.Condenser 10 comprises a comb 12, and every pipe all is fixed on and is formed on the hole of roughly passing on the flat fin 14 that is in line 26 (Fig. 3) so that form an assembly.Pipe 12 be being connected of fin 14 in pipe is inserted into hole on the fin of slight clearance, to finish by mechanical expansion afterwards.From the two ends of the outstanding pipe of heat sink assembly by braze-welding on corresponding conduit 16 and 18.
The test of structural strength shows the danger that the Guan Yougeng at the two ends that are positioned at a comb wrecks easily, particularly under the situation that the tired stressed pulse internal pressure that causes system is arranged.
According to the present invention,, have the pipe 12a of circular cross-section and the two ends that 12b is used in a comb in order to increase the assembling intensity of fin.In order to reach the good heat exchange characteristics of condenser, remaining Guan Ze that has an elliptic cross-section (for example, ellipse) is arranged on the inside of a comb.
Experiment shows that the pipe that has circular cross-section does not need on every side fin to assist to bear internal pressure.Have the pipe of circular cross-section and replace the pipe that has elliptic cross-section in the use of the two ends of a comb, therefore just obtained needed strength characteristics, do not need the additional lateral restraint device just can test by greatest requirements.The advantage of this solution is to have good structural strength and suitable stability.
Claims (1)
1, a kind of condenser that is used for Vehicular air conditioning system, comprise at least one comb (12,12a, 12b), after they retouch in the hole (26) of arranging on the fin 14, be fixed on by the mechanical expansion of pipe on the fin (14) of general flat, it is characterized in that, it comprise a pair of pipe that has circular cross-section that is positioned at the two ends of a comb (12a, 12b) and the many pipes that have oval cross section (12) that are positioned at the inside of a comb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97118012 CN1178896A (en) | 1996-08-07 | 1997-08-05 | Condenser for vehicle air conditioning system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO96A000683 | 1996-08-07 | ||
| CN 97118012 CN1178896A (en) | 1996-08-07 | 1997-08-05 | Condenser for vehicle air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1178896A true CN1178896A (en) | 1998-04-15 |
Family
ID=5174622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97118012 Pending CN1178896A (en) | 1996-08-07 | 1997-08-05 | Condenser for vehicle air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1178896A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005028338A1 (en) * | 2003-09-22 | 2005-03-31 | Xu, Yanling | Flat sucking tube |
| CN100412493C (en) * | 2002-12-25 | 2008-08-20 | 株式会社T.Rad | Plate fin for heat exchanger and heat exchanger core |
| CN105431700A (en) * | 2013-09-20 | 2016-03-23 | 三菱电机株式会社 | Heat exchanger, air conditioner using said heat exchanger, and manufacturing method of said heat exchanger |
-
1997
- 1997-08-05 CN CN 97118012 patent/CN1178896A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412493C (en) * | 2002-12-25 | 2008-08-20 | 株式会社T.Rad | Plate fin for heat exchanger and heat exchanger core |
| WO2005028338A1 (en) * | 2003-09-22 | 2005-03-31 | Xu, Yanling | Flat sucking tube |
| CN105431700A (en) * | 2013-09-20 | 2016-03-23 | 三菱电机株式会社 | Heat exchanger, air conditioner using said heat exchanger, and manufacturing method of said heat exchanger |
| CN105431700B (en) * | 2013-09-20 | 2017-09-08 | 三菱电机株式会社 | Heat exchanger, the manufacture method using the air-conditioning device of the heat exchanger and the heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |