CN1189603A - Heat exchanger and its mfg. method - Google Patents
Heat exchanger and its mfg. method Download PDFInfo
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- CN1189603A CN1189603A CN98100059A CN98100059A CN1189603A CN 1189603 A CN1189603 A CN 1189603A CN 98100059 A CN98100059 A CN 98100059A CN 98100059 A CN98100059 A CN 98100059A CN 1189603 A CN1189603 A CN 1189603A
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Abstract
A heat exchanger that a tube member 2' has beads 21 protruded from the face of one plate toward the other plate, tube member 2' is held by block members 31, 31, a forming jig 40 is inserted between medium passages 24, 24 formed by the beads 21 to hold to press the beads 21 at an end 2a of the tube member 2' to mutually adhere the faces of the beads 21 on the outer face of the tube member 2', and recesses formed by the mutually contacted faces of the beads 21, 21 have a cross-sectional area of about 0.2 mm2 or below. And, a region where the recesses have a cross-sectional area of about 0.2 mm2 or below is within 10 mm outside header pipes 3, 4.
Description
The present invention relates to heat exchanger and manufacture method thereof, in this heat exchanger, the heat exchanger pipe that a slice plate is bent or two plates coincidences are formed is communicated with the connection pipe.
As everyone knows, prior art is several pipes that will carry out the medium heat exchange are communicated with formation with the connection pipe that distribution, centralized media are used a heat exchanger.
The pipe that is used for this heat exchanger for example as shown in figure 13, is the pipe made from extrusion molding 60.This pipe 60 adopts the good aluminum or aluminum alloy material of formability, is configured as flat tubulose by extrusion molding.In the inside of this pipe, at a distance of certain intervals, be provided with partition wall 61 along the width of pipe integratedly, the single circulation flow path 62 of pipe inside is separated into several streams 62a.
Inner fin formula pipe 70 shown in Figure 14 also is known.In this pipe inside of 70, insert make with other parts, transverse shape is the inner fin 71 of shape of crawling, will manage internal flow path 72 by this inner fin 71 and be separated into some stream 72a.
In addition, for example the metal plates such as light-alloy of aluminium being configured as predetermined tubulose (below be referred to as duct member), with the required part welding of this duct member, also is technique known again.Rolling formation or drawing etc. are adopted in the shaping of this pipe.
The plate that this duct member is used, normally coating the brazing sheet of solder flux comprehensively, the welding at the welding of duct member desired area and other position of heat exchanger is after with instrument etc. duct member, connection pipe and other parts being assembled into one, and this assembly carries out in the lump by heating.
As shown in figure 12, for example, duct member 50 ' is to form flange 51,51 with appropriate intervals on band-like plate, and forms junction surface 52,52 respectively at the edge part of plate width, with the bend 53 of width central authorities plate is bent into predetermined tubulose.Inner at pipe, be separated to form plurality of media stream 54,54 by flange 51,51.Between the top of each flange 51,51 and the inboard relative position and between the junction surface 52,52, use solder joints.The shape of this flange can form multiple shapes such as boss edge, oval flange according to purposes.
As previously mentioned, when forming several streams in will manage with partition wall, inner fin, flange etc., can improve the internal pressure-resistant of pipe itself, make the mobile generation of heat exchange media appropriate turbulent, can improve heat exchanger effectiveness.
The above-mentioned pipe 60 that is shaped with extrusion forming method, be adopt the material that is suitable for extrusion forming method, be that aluminum or aluminum alloy is made, therefore in the combination of pipe and fin, usually adopt the fin materials that coating solder flux to form fin more.But when forming fin with the fin material that is coating solder flux, the employed metal die abrasion of finned blade forming are serious, so maintenance cost increases, and fin material take highly, makes the cost increase.
In addition, the pipe 70 of inner fin formula will additionally be made inner fin 71 earlier, is inserted into assembling in the pipe 70 then, so, fee of material, processing charges, assembling expense height.
The duct member 50 ' of above-mentioned formation flange 51 has bigger superiority at aspects such as manufacturing process, manufacturing expenses than aforementioned tube.When welding in the pore that the end of pipe 50 ' is inserted the connection pipe, good welding must be carried out in this junction, with the close property of the liquid of guaranteeing medium.
But the recess of the flange 51 of duct member 50 ' end makes the bigger gap of formation between duct member 50 ' end and pore, so before, the reason that this part becomes failure welding reduces the qualification rate of product.
For this reason, disclose No. 86489/1992 communique at Japan Patent and disclosed a kind of pipe, this pipe be with plate along length of tube direction bending and connect airtight, form the teat of the double wall shape of bending, the front end face of above-mentioned teat and toward each other plate face are joined form.This pipe forms the teat of double wall shape owing to being with the plate bending and connecting airtight, so the top and bottom of pipe are slightly smooth face, can seamlessly pipe be assembled on the connection pipe, has eliminated the problem of weldability.
But, with the teat of plate bending and the double wall shape that connects airtight, being difficult to be formed uniformly in this wise along the length direction of pipe, manufacturing process is miscellaneous.In addition, when the formability difference of pipe, cause that then the assembleability of connection pipe reduces.Moreover, join owing to be formed on the top and the plate face of the double wall shape teat on the pipe, so the area that joins reduces, weldability reduces, thus resistance to pressure is low.
On the other hand, the shaping of flange, can evenly and promptly form, so manufacturing process is simple with roll-in processing, punch process or metal die processing etc. owing to be before the pipe shaping or in the pipe shaping.In addition, because the top of flange engages with the plate face, so bonding area increases, weldability is good, and resistance to pressure improves.
Therefore, the purpose of this invention is to provide a kind of heat exchanger and manufacture method thereof, heat exchanger of the present invention is to adopt the duct member with flange, with instrument the top and bottom, end of pipe is formed slightly tabular surface, can improve the weldability between duct member and the pore that joins pipe.
Heat exchanger of the present invention has plate bending or two blocks of plates is superimposed and several duct members that form insert the end of this duct member in the pore of connection pipe, and the Guan Yulian pipe is communicated with; In the aforementioned tube parts, be provided with slave plate towards the outstanding flange of the opposing party's plate, the end of this duct member is inserted in the pore of connection pipe, inserts the position at this, and the flange surface on the duct member outer surface is engaged with each other, and the top and bottom of duct member end form slightly smooth face.
Like this,,, pipe can be assembled on the connection pipe, improve weldability so the slightly smooth face of duct member joins with the ora terminalis of pipe patchhole, does not produce big gap between pipe patchhole and pipe because the top and bottom of duct member end form slightly smooth face.Therefore, reduce disqualification rate, improve reliability of products.
In addition, the intensity of the pipe that the connection pipe is inner is because of the flange that inner face joins is guaranteed.
In the aforementioned tube parts, the recess the when flange surface of duct member outer surface is engaged with each other, sectional area is about 0.2mm
2Below.
Like this, because the sectional area of the flange recess of duct member end is to omit 0.2mm
2Below, so the pore of the end of welded pipe parts and connection pipe well can improve the qualification rate of product.
That is, the recess of the flange of duct member end, and the pore of connection pipe between form the gap, thereby become the reason of failure welding, but among the present invention, because its sectional area is at 0.2mm slightly
2Below, so, when welding, can bury this gap, thereby improve weldability by the solder flux that refluxes.
The sectional area of above-mentioned recess is for omiting 0.2mm
2Following position is located in the 10mm in the connection pipe outside.
Like this, because the sectional area of flange is summary 0.2mm
2Following scope is arranged on from the connection pipe in the 10mm of the outside, so the insertion amount maximum of Guan Xianglian pipe has the surplus of 10mm, like this, can improve the soldering reliability of the pore of duct member end and connection pipe.
Like this, because of the reasons such as dimensional discrepancy of duct member, even the insertion amount of duct member end and expection not simultaneously, also can be well with of the pore welding of duct member end with the connection pipe.
In the end of aforementioned tube parts, the wall thickness of flange is less than the thickness of above-mentioned plate.
Like this, because in the end of duct member, the wall thickness of flange is less than thickness of slab, so, the end of processing tube parts easily.
The end of aforementioned tube parts in the width compression molding, and has the transverse shape corresponding with above-mentioned pore.
Like this, because compression and form the end of duct member, so, can correctly obtain preliminary dimension, can avoid the end of duct member can not insert the phenomenon of the pore of connection pipe.
In addition, because the end of duct member has the transverse shape corresponding with pore, so, can guarantee that duct member is toward the interior form of inserting of pore.
Be provided with the taper surface that outside-in shrinks towards the front end of aforementioned tube ends and along the direction of principal axis of aforementioned tube parts.
Like this, owing to be provided with the taper surface that outside-in shrinks towards the front end of aforementioned tube ends and along the direction of principal axis of aforementioned tube parts, so, can easily insert the end of duct member in the pore of connection pipe, can improve duct member and the assembling operation efficient that joins pipe.
Heat exchanger and manufacturing method thereof of the present invention is, this heat exchanger has a plate bending or two blocks of plates is superimposed and several duct members that form insert the end of this duct member in the pore of connection pipe, and the Guan Yulian pipe is communicated with; In the aforementioned tube parts, be provided with slave plate, be separated into several heat exchange media streams by flange in the inside of duct member towards the outstanding flange of another plate; Instrument is inserted in the above-mentioned stream from the end of aforementioned tube parts, seize on both sides by the arms and the flange side wall portion of extruded tube parts ora terminalis, make the flange surface crimping each other on the outer surface of duct member, and the top and bottom of duct member end are formed slightly smooth face with this instrument; The crimping each other of the inner face of this flange, and, after the top and bottom of duct member end form and omit tabular surface, this duct member is inserted connection manage interior the assembling, integrally welded more afterwards.
Like this, owing to instrument is inserted in the above-mentioned stream from the end of aforementioned tube parts,, can form slightly smooth face in a top and bottom with the duct member end by the side wall portion of crush ribs, pipe with having the flange that forms evenly and rapidly can form the heat exchanger with good welds.The method according to this invention forms double wall shape teat along the whole length direction of pipe needn't resembling before, and the top and bottom of pipe are all formed slightly smooth face, so, make simple.And the top of the flange of aforementioned tube joins with relative plate face, so, increased the area that joins, improve weldability, and improve the resistance to pressure of pipe.
Effect of the present invention is as follows.
As mentioned above, heat exchanger of the present invention has plate bending or two blocks of plates is superimposed and several duct members that form insert the end of this duct member in the pore of connection pipe, and the Guan Yulian pipe is communicated with; In the aforementioned tube parts, be provided with slave plate towards the outstanding flange of the opposing party's plate, insert in the pore of connection pipe the end of this duct member, inserts the position at this, and the flange surface on the duct member outer surface is engaged with each other, and the top and bottom of duct member end form slightly smooth face.
Like this,,, pipe can be assembled on the connection pipe, improve weldability so the slightly smooth face of duct member joins with the ora terminalis of pipe patchhole, does not produce big gap between pipe patchhole and pipe because the top and bottom of duct member end form slightly smooth face.Therefore, reduce disqualification rate, improve reliability of products.
In addition, the intensity of the pipe that the connection pipe is inner is because of the flange that inner face joins is guaranteed.
In the aforementioned tube parts, the recess the when flange surface of duct member outer surface is engaged with each other, sectional area is about 0.2mm
2Below.
Like this, because the sectional area of the recess of the flange of duct member end is to omit 0.2mm
2Below, so the pore of the end of welded pipe parts and connection pipe well can improve the qualification rate of product.
That is, the recess of the flange of duct member end because and the pore of connection pipe between form the gap, thereby become the reason of failure welding, but among the present invention, because its sectional area is at 0.2mm slightly
2Below, so, when welding, can bury this gap by the solder flux that refluxes, can improve weldability.
The sectional area of above-mentioned recess is for omiting 0.2mm
2Following position is located in connection pipe outside 10mm.
Like this, owing to be the sectional area of flange 0.2mm
2Following scope is arranged on from the connection pipe in the 10mm of the outside, so the insertion amount maximum of Guan Xianglian pipe has the surplus of 10mm, like this, can improve the soldering reliability of the pore of duct member end and connection pipe.
Like this, because of the reasons such as dimensional discrepancy of duct member, even the insertion amount of duct member end and expection not simultaneously, also can be well with of the pore welding of duct member end with the connection pipe.
In the end of aforementioned tube parts, the wall thickness of flange is less than the thickness of above-mentioned plate.
Like this, because in the end of duct member, the wall thickness of flange is less than thickness of slab, so, the end of processing tube parts easily.
The end of aforementioned tube parts in the width compression molding, and has the transverse shape corresponding with above-mentioned pore.
Like this, because compression and form the end of duct member, so, can correctly obtain preliminary dimension, can avoid the end of duct member can not insert the phenomenon of the pore of connection pipe.
In addition, because the end of duct member has the shape of cross section corresponding with pore, so, can guarantee that duct member is toward the interior form of inserting of pore.
Court sees the front end of above-mentioned duct member end and is provided with the taper surface of outside-in contraction along the direction of principal axis of aforementioned tube parts.
Like this, owing to be provided with the taper surface of outside-in towards the front end of aforementioned tube ends and along the direction of principal axis of aforementioned tube parts, so, can easily insert the end of duct member in the pore of connection pipe, can improve the assembling operation efficient of duct member and connection pipe.
In the heat exchanger and manufacturing method thereof of the present invention, this heat exchanger has plate bending or two blocks of plates is superimposed and several duct members that form insert the end of this duct member in the pore of connection pipe, and the Guan Yulian pipe is communicated with; In the aforementioned tube parts, be provided with slave plate, be separated into several heat exchange media streams by flange in the inside of duct member towards the outstanding flange of another plate; Instrument is inserted in the above-mentioned stream from the end of aforementioned tube parts, seize the also side wall portion of the flange of extruded tube parts ora terminalis on both sides by the arms with this instrument, make the face crimping each other of the flange on the outer surface of duct member, and the top and bottom of duct member end are formed slightly smooth face; The crimping each other of the inner face of this flange, and, after the top and bottom of duct member end form and omit tabular surface, this duct member is inserted connection manage interior the assembling, integrally welded again.
Like this, owing to instrument is inserted in the above-mentioned stream from the end of aforementioned tube parts,, can form slightly smooth face in a top and bottom with the duct member end by the side wall portion of crush ribs, pipe with having the flange that forms evenly and rapidly can form the heat exchanger with good welds.The method according to this invention forms double wall shape teat along the whole length direction of pipe needn't resembling before, and the top and bottom of pipe are all formed slightly smooth face, so, make simple.And the top of the flange of aforementioned tube joins with relative plate face, so, increased the area that joins, improve weldability, and improve the resistance to pressure of pipe.
Therefore, heat exchanger of the present invention and manufacture method thereof can reduce the disqualification rate of product, improve economy, obtain high quality and steady qualityization, improve reliability of products.
Fig. 1 is the front elevation of expression embodiment of the invention heat exchanger.
Fig. 2 is the schematic diagram of duct member end face in the expression embodiment of the invention.
Fig. 3 is in the expression embodiment of the invention, the metal die of the end formed usefulness of duct member and the outside drawing of mold tool.
Fig. 4 is the schematic diagram of the end face of duct member in the expression embodiment of the invention.
Fig. 5 is the plane of duct member in the expression embodiment of the invention.
Fig. 6 is the schematic diagram of the part of the end face of duct member in the expression embodiment of the invention.
Fig. 7 is the front elevation of the part of connection pipe in the expression embodiment of the invention.
Fig. 8 is the sectional drawing of duct member ora terminalis in expression another embodiment of the present invention.
Fig. 9 is the sectional drawing of duct member ora terminalis in expression further embodiment of this invention.
Figure 10 is the plane of duct member shown in Figure 9.
Figure 11 is in the expression embodiment of the invention, the end of duct member is inserted the plane of the pore internal state of connection pipe.
Figure 12 is the end view drawing of duct member in the expression conventional example.
Figure 13 is the sectional drawing of duct member and fin in the expression conventional example.
Figure 14 is the stereogram of duct member in the expression conventional example.
Below, with reference to the description of drawings embodiments of the invention.
As shown in Figure 1, in the heat exchanger 1 in the present embodiment, clamp fin 5,5 and stacked some pipes 2,2 and connection pipe 3,4 connections that are provided in these pipe 2,2 both ends.
Each connection pipe 3,4th, tubular, its upper and lower end parts opening are by blind lid 6,6 sealings, and its inside is provided in the demarcation strip 7,7 of predetermined position separates, and also are provided with medium are taken into inner inlet tube joint 3a and medium are discharged outside outlet pipe connection 4a.
Length direction along each connection pipe 3,4 is formed with pore 9,9 with predetermined space, and each manages 2,2 end and 9,9 connections of this pore.
Manage 2,2 layers about, disposing side plate 8,8.The end of side plate 8,8 is individually fixed in each connection pipe 3,4, plays the effect of strengthening heat converter structure intensity.
According to this structure, from the medium that inlet tube joint 3a is taken into, reciprocal between each connection pipe 3,4 with predetermined nest of tubes unit, to crawl mobile several times, passes through pipe 2 while carry out heat exchange, discharges from outlet pipe connection 4a again.In addition, be clipped on the heat exchange that the exothermal effect of fin 5 between pipe 2 and the side plate 8 promotes medium more.
As shown in Figure 1, pipe 2 is to be that tubulose forms duct member 2 ' with forming sheet metal, the end of this duct member 2 ' is inserted in the pore 9 of connection pipe 3 or connection pipe 4, with their junction
Be welded with the desired area of duct member 2 '.
As shown in Figure 2, the duct member 2 ' in the present embodiment is to form several flanges 21,21 on band-like plate along its length, and forms junction surface 22,22 respectively at its width two ends, with the kink 23 of width central authorities its bending is formed.These flanges 21,21st bend to concavity to plate and form.Plate is to use comprehensive brazing sheet that is coating the aluminium light-alloy system of solder flux.
The formation of the formation at the formation of these flanges 21,21, junction surface 22,22 and kink 23 adopts the rolling formation method to carry out.That is be to adopt band-like plate is undertaken by the method between suitable several rotation rollers that disposing.
In the present embodiment, this duct member 2 ' inserts and to have in the metal die 30 of reservation shape internal mold as shown in Figure 3, and its end 2a is compressed.
The material that this metal die is higher than duct member 2 ' by mechanical strength is made and is made of several mould pieces 31,31 of cutting apart internal mold.Mould piece 31, the transverse shape of 31 internal mold forms simple oblong shape, and this oblong shape has the parallel portion of the thickness and the width dimensions of duct member 2 ', simultaneously, above-mentioned transverse shape forms more longways continuously than the par that is located on the duct member 2 ' at least.Therefore, when mold tool 40 described later inserts, near the peripheral shape pipe 2 ends can be formed the simple oblong shape with parallel portion at least.
In addition, mould piece 31,31 is being supported by the maintaining body that figure does not show.This maintaining body becomes, and after having compressed the end 2a of duct member 2 ', rapidly die sinking can easily make the structure of the duct member 2 ' demoulding.
When compressing, from duct member 2 ' front end illustrated mold tool 40 is inserted in the medium streams 24,24, the flange surface of each flange 21,21 of the end 2a of duct member 2 ' is joined each other.
Promptly, this mold tool 40 and above-mentioned mould piece 31,31 similarly, and the material that is higher than duct member 2 ' with mechanical strength is made, and its thickness slightly equals the length of the opposite face up and down of duct member 2 ' inner face, in order to insert medium stream 24,24, its leading section forms the projection 41,41 of several broach shapes of cutting apart along the width of mold tool 40, the width of this projection 41,41 slightly equals the width of stream 24.The base end part transverse shape of these projections 41 is rectangle slightly, the wall thickness of the gap A between the neighboring projection 41,41 when making duct member 2 ' superimposed.For example, when the wall thickness of establishing the flange 21 among the end 2a of duct member 2 ' was 0.45mm, the thickness the when face of the flange 21,21 of duct member 2 ' is superimposed was 0.9mm, and at this moment, gap A preferably is set at about 0.5mm.In addition, the length of projection 41,41 and to be located at the length of each the gap A between the projection 41,41 all identical, this length setting is for longer than the par length that is formed on duct member 2 ' end at least.
The front end 41a of each projection 41,41,41a is separated, and, form the taper that front end with any angle of flare α attenuates at width, also form the taper that front end with any angle of flare β attenuates at thickness direction.Projected front ends 41a, the identical length of 41a together.
Below, the metal pattern 30 that has mould piece 31,31 and mold tool 40 with this is described, the operation that the end of duct member 2 ' is shaped.
End with duct member 2 ' fixedly remains in the mould piece 31,31 earlier.Again the projected front ends 41a of mold tool 40 is inserted the ora terminalis of duct member 2 '.This projected front ends 41a enters in the medium stream 24,24, along with the progress of inserting, and by the extruding of mold tool 40, crush ribs 21,21, the side wall portion of flange 21,21 is crimped each other.That is, the side wall portion of flange 21,21, because the insertion of the leading section 41a of pyramidal projections and being extruded gradually, final, the side wall portion of the flange 21,21 in the end of duct member 2 ' becomes the state of being seized on both sides by the arms in the A of the gap of mold tool 40.
Therefore, as shown in Figure 4, the crimping each other of the side wall portion of flange 21, the ora terminalis shape of the flange 21 of duct member 2 ' end becomes the teat shape of double wall shape, and the top and bottom of duct member 2 ' form slightly tabular surface.
At this moment, because the projected front ends 41a of mold tool 40 forms taper α, the β that front end attenuates at width and thickness direction, so, the end edge portion of duct member 2 ' can not flattened or makes the end shape distortion of duct member 2 ', mold tool 40 successfully can be inserted in the medium stream 24,24 of duct member 2 '.
Fig. 5 is the plane of the compressed duct member 2 ' of expression end 2a.Among Fig. 5, part is represented the part that the plane of flange 21 and duct member 2 ' joins shown in the dotted line.
When the wall thickness t of the flange of duct member 2 ' for example is 0.45mm, when the side wall portion double wall shape ground of flange 21 is connected airtight, its wall thickness is 0.9mm, because the gap A of mold tool 40 is set at the width less than this double wall, for example be 0.5mm, so the flange 21,21 at 2a position, end is seized on both sides by the arms in the A of gap, unnecessary wall thickness is extruded to the surface of duct member 2 ', and the periphery on this duct member 2 ' surface is because by mould piece 31,31 are keeping, so, as described later, can make the surface planarization equably of duct member 2 '.
Fig. 6 be duct member 2 ' end 2a want portion's enlarged drawing.As Fig. 6 and shown in Figure 4, each flange 21,21 among the end 2a of duct member 2 ', its flange surface joins each other, and the sectional area of its recess 21a becomes 0.2mm
2Below.
That is, as previously mentioned, the result that the flange surface of flange 21 is joined each other, the reduced cross-sectional area of the recess 21a of flange 21 becomes 0.2mm
2Below.
Shown in arrow among Fig. 6, the wall thickness t of flange 21 is less than thickness of slab T.This is because when rolling formation, with the position rolling cause of the pressurization of rotating roller to the plate that is configured as flange 21.
After the duct member 2 ' of Cheng Xinging like this, its end 2a insert respectively and assemble in pore 9,9 of each connection pipe 3,4, again it is sent into heating in the stove and weld.That is, the end 2a of duct member 2 ' and pore 9 welding, weld with the relative position of duct member inboard at the top of flange 21, and junction surface 22,22 is welded to one another.
Fig. 7 is the front elevation of the pore 9 of expression connection pipe 3,4.As shown in the drawing, the shape of the pore 9 roughly transverse shape with the end 2a of duct member 2 ' is identical.Though making, the recess 21a of flange 21 between the end of duct member 2 ' 2a and pore 9, forms the gap, because the sectional area of the recess 21a of flange 21 is for O.2mm
2Below, so the solder flux that can easily be refluxed when welding in this gap buries.
As mentioned above, according to the heat exchanger of present embodiment, because the sectional area of the recess of the flange of duct member end is 0.2mm
2Below, so, can weld well between the pore of duct member end and connection pipe, can improve the qualification rate of product.
That is, the recess of the flange of duct member end, though and the pore of connection pipe between form the gap, and become the reason of failure welding,, in the present embodiment, because its sectional area is at 0.2mm
2Below, so when welding, the solder flux that flows back to can easily bury this gap, therefore, can improve weldability.
In addition, the sectional area of the recess of flange joins each other by the flange surface that makes the duct member outer surface, can be controlled at slightly 0.2mm
2Below.
The intensity of the pipe that the connection pipe is inner, also the flange that joins each other owing to this inner face is guaranteed.
This be because, because of the reasons such as dimensional discrepancy of duct member, even the insertion amount of duct member end and expection is different, owing to the sectional area of the recess of flange at 0.2mm
2Following scope, so, can be well with the cause of duct member end with the pore welding of connection pipe.
The heat exchanger of present embodiment, because in the end of duct member, the wall thickness of flange is less than thickness of slab, so the end of processing tube parts easily.
In addition, the phenomenon that the pore of connection pipe can not be inserted in the duct member end owing to have the transverse shape corresponding with pore, so can correctly obtain preliminary dimension, can be avoided occurring in the end of this duct member.
In addition, in the present embodiment, the front end of flange is to join with the opposing party's plate face, joins each other but also can make from the front end of the outstanding both sides' of both sides' plate face flange.
Fig. 8 to Figure 11 represents other embodiment of duct member 2 '.
Pipe in embodiment illustrated in fig. 8 is that pipe is divided into two parts, and the above-mentioned flange that is shaped thereon.As shown in Figure 8, the duct member 2 ' in the present embodiment for example is two blocks of plates that form pre-sizing and reservation shape with rolling formation method or punching formation etc., again with the junction surface 22A at these two plate two ends, and 22A and 22B, superimposed the connecting of 22B forms.
In the duct member 2 ' of this embodiment, also same with previous embodiment, periphery with mold tool and maintaining body holding tube parts 2 ' end, the projection 41 of mold tool 40 is inserted in the stream 24 of duct member 2 ', make the flange 21 of duct member 2 ' outer surface, the crimping each other of 21 face, near the inside duct member 2 ' end stays the flange 21 of double wall shape, and near top and bottom are formed slightly smooth face.
Therefore, the pipe that is made of two parts of present embodiment also can be guaranteed the resistance to pressure of tube end, can improve the weldability of connection pipe 4 and duct member 2 '.
Fig. 9 and Figure 10 represent other embodiment of pipe, and Fig. 9 represents the front elevation of pipe end edge, and Figure 10 represents the plane of pipe.
As shown in Figure 9, duct member 2 ' has the plate of flange 21 as previously mentioned with formation such as rolling formation methods.With mold tool 40 face of the flange 21,21 of duct member 2 ' outer surface is joined each other, the end of duct member 2 ' is formed slightly smooth face.In addition, only with the ora terminalis part of the kink 23 of duct member 2 ' from the above-below direction extruding, form the 23a of flattening portion, 23a.
Like this, owing to form the flattening 23a of portion, 23a at the above-below direction two ends of the kink 23 of duct member 2 ', when inserting duct member 2 ' in the pore 7, can have with the 23a of flattening portion and have more than needed accordingly, so, can easily duct member 2 ' be inserted in the pore 7, improve assembleability.In addition, the 23a of flattening portion is the terminal part of duct member 2 ', and, only be formed on the ora terminalis part of the kink 23 of duct member 2 ', so, after being assembled into duct member 2 ' in the pore 7, the 23a of flattening portion is positioned at connection pipe 4, and the summary tabular surface of duct member 2 ' joins with the pore 7 of connection pipe 4, like this, between pore 7 and pipe 2, do not produce the gap, same with previous embodiment, can guarantee good weldability.
Duct member 2 ' shown in Figure 11 is provided with towards the taper 25,25 of the front end of its end 2a and outside-in contraction axially.
That is, after having bent plate, so the width W broad ways of the end 2a of duct member 2 ' compression is slightly littler than the width W at other position of duct member 2 '.In addition, the end 2a of this duct member 2 ' has the transverse shape corresponding with pore 9, and its length is set like this: at the state that inserts pore 9, in the outside 10mm of connection pipe 3 that is provided with pore 9 or connection pipe 4.The compression of this end 2a is so-called shaping, can correctly obtain the size of being scheduled to.Changing of the relative positions that junction surface 22,22 is mutual etc. can be by this companding improvement.
In addition, the formation of the taper 25,25 of the end 2a front end of duct member 2 ' is through after this operation, the front end of end 2a again the taper do not shown of insertion figure form and carry out in the metal die of usefulness.
According to the heat exchanger of present embodiment, because 10mm is about 0.2mm with the sectional area of interior flange recess outside the connection pipe
2Below, so the surplus that insertion amount in the pore of connection pipe can obtain maximum 10mm is inserted in the end of duct member, like this, the welding reliability between the end that can improve duct member and the pore that joins pipe.
In addition, the heat exchanger of present embodiment, because compression and form the end of duct member, so, can correctly obtain the size of being scheduled to, thereby avoid the end of duct member can not insert the phenomenon of the pore of connection pipe.
Like this, the heat exchanger of present embodiment, owing to the taper surface that outside-in shrinks is set towards the front end and the broad ways of duct member end, so, can easily the end of duct member be inserted in the pore of connection pipe, can improve duct member and the assembling operation efficient that joins pipe.
In the present embodiment, be to go up at duct member 2 ' along its length to form 4 flanges 21,21, can in this duct member 2 ', form 5 medium streams 24,24, but be not limited thereto, also can form the flange of arbitrary number.In addition, the flange in the present embodiment is alternately to be located on the top and bottom of pipe, but also can only be arranged on arbitrary, perhaps also can become the structure that joins at the pars intermedia of duct member 2 each other from the front end of the prominent flange of establishing of upper and lower surface.In addition, in the present embodiment, duct member is at the central kink of width a plate bending to be shaped, but also can be the engaged at end portion of the two blocks of plates shape that is formed by stacking.In addition, in the present embodiment, be that the length direction at duct member forms long flange continuously, but be not limited thereto, also can set the flange of different shape discontinuously, perhaps also can make at the predetermined position of long flange gapped, the structure that is communicated with adjacent flow passages.
Claims (9)
1, a kind of heat exchanger, system is with the bending of plate or and several duct members that form superimposed two blocks of plates, the end of this duct member is inserted in the pore of connection pipe, the Guan Yulian pipe is communicated with, it is characterized in that, in the aforementioned tube parts, be provided with slave plate towards the outstanding flange of the opposing party's plate, insert in the pore of connection pipe the end of this duct member, inserts the position at this, flange surface on the duct member outer surface is engaged with each other, and the top and bottom of duct member end form slightly smooth face.
2, heat exchanger as claimed in claim 1 is characterized in that, in the described duct member, and the recess the when face of the flange of duct member outer surface is engaged with each other, sectional area is about 0.2mm
2Below.
3, heat exchanger as claimed in claim 2 is characterized in that, in the described duct member, the sectional area of described recess is for omiting 0.2mm
2Following position is located in connection pipe outside 10mm.
As each described heat exchanger in the claim 1 to 3, it is characterized in that 4, in the end of described duct member, the wall thickness of flange is less than the thickness of described plate.
As each described heat exchanger in the claim 1 to 4, it is characterized in that 5, the end of described duct member in the width compression molding, and has the transverse shape corresponding with described pore.
6, as each described heat exchanger in the claim 1 to 5, it is characterized in that, be provided with the taper that outside-in shrinks towards the front end of described duct member end and along the direction of principal axis of described duct member.
7, a kind of manufacture method of heat exchanger, this heat exchanger system is communicated with the Guan Yulian pipe plate bending or superimposed two blocks of plates and several duct members that form insert the end of this duct member in the pore of connection pipe, it is characterized in that,
In the described duct member, be provided with slave plate, be separated into several heat exchange media streams by flange in the inside of duct member towards the outstanding flange of another plate;
Instrument is inserted in the described stream from the end of aforementioned tube parts, seize on both sides by the arms and the side wall portion of the flange of extruded tube parts ora terminalis, make the flange surface crimping each other on the outer surface of duct member, and the top and bottom of duct member end are formed slightly smooth face with this instrument;
The crimping each other of the inner face of this flange, and, after the top and bottom of duct member end form and omit tabular surface, this duct member is inserted connection manage interior the assembling, integrally welded again.
8, heat exchanger as claimed in claim 1 is characterized in that, joins each other from the front end of the outstanding both sides' of both sides' plate flange.
9, heat exchanger and manufacturing method thereof as claimed in claim 7 is characterized in that, joins each other from the front end of the outstanding both sides' of both sides' plate flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100059A CN1189603A (en) | 1997-01-20 | 1998-01-20 | Heat exchanger and its mfg. method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP007920/97 | 1997-01-20 | ||
| JP282302/97 | 1997-10-15 | ||
| CN98100059A CN1189603A (en) | 1997-01-20 | 1998-01-20 | Heat exchanger and its mfg. method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1189603A true CN1189603A (en) | 1998-08-05 |
Family
ID=5215774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100059A Pending CN1189603A (en) | 1997-01-20 | 1998-01-20 | Heat exchanger and its mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189603A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357697C (en) * | 2002-08-09 | 2007-12-26 | 昭和电工株式会社 | Flat tube, and method of manufacturing heat exchanger using flat tube |
| CN101832726B (en) * | 2009-03-11 | 2012-01-25 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat radiating pipe for heat exchanger and manufacturing method thereof |
| CN102764969A (en) * | 2011-05-05 | 2012-11-07 | 陈世明 | Method and device for flattening radiator heat pipe |
| CN102893118A (en) * | 2010-05-24 | 2013-01-23 | 三电有限公司 | Tube for heat exchanger, heat exchanger, and method for manufacturing tube for heat exchanger |
| CN103438748A (en) * | 2008-06-26 | 2013-12-11 | 法雷奥热系统公司 | Heat exchanger and casing for the heat exchanger |
| CN105423803A (en) * | 2016-01-12 | 2016-03-23 | 扬州英谛车材实业有限公司 | Non-flared furnace-welded water tank with flat pipe additionally provided with convex hulls |
| CN113557403A (en) * | 2019-03-13 | 2021-10-26 | 株式会社电装 | Heat exchanger |
-
1998
- 1998-01-20 CN CN98100059A patent/CN1189603A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357697C (en) * | 2002-08-09 | 2007-12-26 | 昭和电工株式会社 | Flat tube, and method of manufacturing heat exchanger using flat tube |
| CN103438748A (en) * | 2008-06-26 | 2013-12-11 | 法雷奥热系统公司 | Heat exchanger and casing for the heat exchanger |
| CN103438748B (en) * | 2008-06-26 | 2016-01-20 | 法雷奥热系统公司 | Heat exchanger and the housing for this heat exchanger |
| CN101832726B (en) * | 2009-03-11 | 2012-01-25 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat radiating pipe for heat exchanger and manufacturing method thereof |
| CN102893118A (en) * | 2010-05-24 | 2013-01-23 | 三电有限公司 | Tube for heat exchanger, heat exchanger, and method for manufacturing tube for heat exchanger |
| CN102764969A (en) * | 2011-05-05 | 2012-11-07 | 陈世明 | Method and device for flattening radiator heat pipe |
| CN102764969B (en) * | 2011-05-05 | 2015-03-11 | 陈世明 | Method and device for flattening radiator heat pipe |
| CN105423803A (en) * | 2016-01-12 | 2016-03-23 | 扬州英谛车材实业有限公司 | Non-flared furnace-welded water tank with flat pipe additionally provided with convex hulls |
| CN113557403A (en) * | 2019-03-13 | 2021-10-26 | 株式会社电装 | Heat exchanger |
| CN113557403B (en) * | 2019-03-13 | 2023-02-28 | 株式会社电装 | Heat exchanger |
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