CN1934405A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN1934405A CN1934405A CN 200580009206 CN200580009206A CN1934405A CN 1934405 A CN1934405 A CN 1934405A CN 200580009206 CN200580009206 CN 200580009206 CN 200580009206 A CN200580009206 A CN 200580009206A CN 1934405 A CN1934405 A CN 1934405A
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Abstract
A heat exchanger 1 comprises a heat exchange core 4 composed of heat exchange tubes 12 in groups 13 in the form of two rows arranged in parallel in the direction of flow of air through the exchanger, a refrigerant inlet header 5 disposed on the upper-end side of the tubes 12 and having one row of heat exchange tubes 12 joined thereto and a refrigerant outlet header 6 disposed in the rear of the inlet header 5 on the upper-end side of the tubes 12 and having the other row of heat exchange tubes 12 joined thereto. A cap 19 for closing an opening of the inlet header 5 at one end thereof is provided with a refrigerant inlet 37. The cap 19 has a lower edge defining the inlet 37 and provided with a guide 40 upwardly slanting inwardly of the inlet header.
Description
The cross reference of related application
The application proposes according to 35U.S.C. § 111 (a), and requires the provisional application No.60/556 according to 35U.S.C. § 111 (b) submission on March 26th, 2004,370 applying date interests according to 35U.S.C. § 119 (e) (1).
Technical field
The present invention relates to heat exchanger, relating in particular to for example can be as the heat exchanger of evaporimeter in motor vehicle air conditioning system, and this motor vehicle air conditioning system is the kind of refrigeration cycle that will be installed in the motor vehicle.
In the literary composition and the term that uses in the appended claims " aluminium " except fine aluminium, also comprise aluminium alloy.The downstream of the air by heat exchanger (the arrow X indicated direction in Fig. 1) will be called " preceding " in the text and in the appended claims, and its opposite side then is called " back ".In addition, the upside of Fig. 2, downside, left-hand side and right-hand side will be called " on ", D score, " left side " and " right side ".
Background technology
Up to now, be extensive use of the so-called template evaporimeter that piles up as the motor vehicle air conditioning system evaporimeter, this piles up the template evaporimeter and comprises a plurality of flat hollow bodies that are arranged in parallel and be arranged between every pair of adjacent flat hollow bodies and soldering venetian blind type corrugated fin thereon, and each flat hollow bodies comprises toward each other and along the mutual soldering of its circumferential edge a pair of discoid plate together.Yet, in recent years, need provide size and weight further to reduce and have more high performance evaporimeter.
In order to satisfy this requirement, the applicant has proposed a kind of evaporimeter, this evaporimeter comprises that by form be the heat exchange core that two rows' be arrangeding in parallel by direction along air pipe group constitutes and include a plurality of heat-exchange tubes of arranging the compartment of terrain, be arranged on the refrigerant inlet-EXPORT CARTON of upper end of heat exchange core and the refrigerant turn tank that is arranged on the lower end of heat exchange core, the inside of refrigerant inlet-EXPORT CARTON is separated part and is divided into refrigerant inlet header and the refrigerant outlet collector that is arranged side by side by direction along air, this inlet header has refrigerant inlet at the one end, this outlet header case has refrigerant outlet at itself and this inlet end side by side, the inside of this refrigerant turn tank is separated wall and is divided into cold-producing medium inflow collector and the cold-producing medium outflow collector that is arranged side by side by direction along air, be formed with a plurality of cold-producing mediums of arranging along the longitudinal separation ground of this wall in the partition wall of refrigerant turn tank and pass through the hole, inlet header is charged into and joined in the upper end of the heat-exchange tube of anterior pipe group, outlet header is charged into and joined in the upper end of the heat-exchange tube of rear portion pipe group, the lower end of the heat-exchange tube of anterior pipe group joins the inflow collector to, and the lower end of the heat-exchange tube of rear portion pipe group joins the outflow collector to.The cold-producing medium of the inlet header of inflow inlet-EXPORT CARTON flows in the inflow collector of steering box by the heat-exchange tube of anterior pipe group, go into to flow out in the collector by orifice flow by the cold-producing medium in the partition wall then, and further flow into the outlet header (seeing communique JP-A No.2003-75024) of inlet-EXPORT CARTON by the heat-exchange tube of rear portion pipe group.
But, the inventor has carried out extensive studies and discovery, because the outlet of the entrance and exit collector of inlet header is arranged on the same end place of inlet-outlet header, and because the heat-exchange tube of anterior pipe group joins this inlet header to their upper end of charging into inlet header, so disclosed evaporimeter may have following problem in the above-mentioned communique.
The part of charging into inlet header of heat-exchange tube provides resistance to the cold-producing medium that flows into by inlet, thereby the cold-producing medium of inflow inlet header can be difficult to flow to the position away from inlet.Therefore, produce more cold-producing medium stream thereby the cold-producing medium of more amount flows into the heat-exchange tube that is positioned near the front portion pipe group of inlet, thereby and the heat-exchange tube that more a spot of cold-producing medium flows into away from inlet produces less cold-producing medium stream.Similarly, in the pipe group of rear portion, be positioned near the heat-exchange tube of inlet and have more cold-producing medium stream, and flow through away from the cold-producing medium of the heat-exchange tube that enters the mouth less.As a result, flow through heat exchange core and help heat exchange cold-producing medium amount along inlet-EXPORT CARTON vertically become inhomogeneous, and also become inhomogeneous in some positions by the air of heat exchange core.Thereby this evaporimeter is difficult to have the heat exchange performance of abundant raising.This problem is especially serious when the cold-producing medium flow velocity is low.
An object of the present invention is to overcome the problems referred to above, and provide a kind of heat exchange performance extraordinary heat exchanger.
Summary of the invention
To achieve these goals, the present invention has following pattern.
1) a kind of heat exchanger; This heat exchanger is included in refrigerant inlet header and the refrigerant outlet collector that the upper end edge fore-and-aft direction of this heat exchanger is arranged side by side and is used for the refrigerant circulation path that keeps these two collectors to be connected; This inlet header has refrigerant inlet an end; This outlet header has refrigerant outlet at itself and this entrance end side by side; Cold-producing medium can flow into this inlet header from this entrance; Can return this outlet header in order to discharge from heat exchanger by this outlet by this peripheral passage then
This refrigerant inlet is arranged in the closure member, and this closure member seals this inlet header at the opening at place, described end and have lower limb, and this lower limb limits this inlet and is provided with acclivitous guide part in the inlet header.
2) according to paragraph 1) heat exchanger, wherein the form of this guide part is the spheroid section.
3) according to paragraph 1) heat exchanger, wherein the refrigerant inlet of this inlet header is circular, and internal diameter is 3～8.5mm.
4) according to paragraph 1) heat exchanger, wherein this guide part has the outstanding end face that is positioned on the clinoplain that tilts with respect to the vertical inside surface of closure member.
5) according to paragraph 4) heat exchanger, wherein the outstanding end face of this guide part vertical inside surface that is positioned at clinoplain on it and this closure member form 15～60 degree than small inclination.
6) according to paragraph 1) heat exchanger, second closure of this closure member opening of not locating with this inlet described end side by side of having described open-ended first closure of this inlet header of sealing and being enclosed in outlet header wherein, this first closure has described refrigerant inlet and guide part, and this second closure has described refrigerant outlet.
7) according to paragraph 1) heat exchanger, wherein this inlet header has fish plate, this fish plate joins the described end of this inlet header to and has the refrigerant inlet part that is communicated with the refrigerant inlet of this closure member, and the center of the refrigerant inlet part of this fish plate is upwards departed from the center of the refrigerant inlet of this inlet header.
8) according to paragraph 7) heat exchanger, wherein the deviation at center of the center of the refrigerant inlet of this inlet header and this refrigerant inlet part is 0.5～3mm.
9) according to paragraph 7) heat exchanger, wherein this fish plate extends across and joins to described inlet header and outlet header; Except the refrigerant inlet part that is communicated with refrigerant inlet, this plate also has the refrigerant outlet part that is communicated with refrigerant outlet.
10) according to paragraph 9) heat exchanger, wherein the refrigerant inlet of this fish plate partly go up to engage the refrigerant inlet pipe, the refrigerant outlet of this fish plate is partly gone up to engage the refrigerant outlet pipe.
11) according to paragraph 10) heat exchanger, wherein this inlet tube has the constriction in the refrigerant inlet part that is formed on its end and inserts this fish plate, and this outlet has the constriction in the refrigerant outlet part that is formed on its end and inserts fish plate, and this inlet tube and outlet join this fish plate to.
12) according to paragraph 9) heat exchanger, wherein this fish plate has joint expansion valve installed part thereon, this expansion valve installed part has respectively and these refrigerant inlet part and partially communicating two coolant channels of refrigerant outlet.
13) according to paragraph 1) heat exchanger, wherein this cold-producing medium peripheral passage comprises a plurality of intermediate header and a plurality of heat-exchange tube.
14) according to paragraph 1) heat exchanger, wherein this outlet header is arranged on the rear portion of this inlet header, this cold-producing medium peripheral passage comprises and is arranged under the inlet header and the cold-producing medium relative with this inlet header flows into intermediate header, be arranged under the outlet header and the cold-producing medium relative outflow intermediate header and a plurality of heat-exchange tube with this outlet header, this flows into intermediate header and is communicated with this outflow intermediate header, described a plurality of heat-exchange tube is at each relative paired inlet header and flow into intermediate header and relative paired outlet header and flow out that the compartment of terrain is provided with between the intermediate header, be at least one row's pipe group and constitute heat exchange core that with the formation form two ends of the heat-exchange tube of this pipe group join each collector respect to one another to.
15) according to paragraph 14) heat exchanger, wherein the inside of this outlet header is separated device and is divided into the first and second two spaces that are provided with along short transverse, this heat-exchange tube extends in this first space, this separating device has cold-producing medium by the hole, and second space of this outlet header is communicated with this refrigerant outlet.
16) according to paragraph 14) heat exchanger, wherein this inlet header and outlet header form by using spacer assembly that the inside of a refrigerant inlet-EXPORT CARTON is divided into the front and rear part.
17) according to paragraph 16) heat exchanger, wherein this inlet-EXPORT CARTON comprise first parts that engage with heat-exchange tube, the part soldering relative of these first parts with heat-exchange tube on these first parts second parts and soldering at the closure member at the two ends of these first and second parts, this spacer assembly and separating device and this second parts form one.
18) a kind of kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, this evaporimeter comprises according to paragraph 1) to 17) in any one heat exchanger.
19) a kind of vehicle wherein is equipped with according to paragraph 18) kind of refrigeration cycle with as Vehicular air-conditioning apparatus.
According to paragraph 1) heat exchanger have the opening that is positioned at one end place of this inlet header of sealing and have the closure member of refrigerant inlet.This closure member has the lower limb that limits inlet and be provided with acclivitous guide part in the inlet header.Therefore, thus the cold-producing medium that flows into this inlet header flows with being inclined upwardly, can easily flow to away from the position of this inlet by this inlet header and flow through all heat-exchange tubes of joining this inlet header to uniform amount and flow through all heat-exchange tubes that join this outlet header to uniform amount because of the portion's of being directed to guiding.Therefore, helping the amount of the cold-producing medium of heat exchange is uniform in the heat exchange core of this cold-producing medium peripheral passage along the vertical of this inlet header, the temperature of the air by this heat exchange core also is uniformly on the whole, thereby can significantly improve the heat exchange performance of heat exchanger.Especially hour can prevent the heat exchange performance variation when the flow velocity of cold-producing medium.
For paragraph 2) interior described heat exchanger, the form of guide part is the spheroid section, therefore unlikely provides resistance to cold-producing medium stream.
According to paragraph 1) the advantage of heat exchanger at paragraph 3) in become more remarkable in the described heat exchanger.
According to paragraph 1) the advantage of heat exchanger at paragraph 4) and 5) in become more remarkable in the described heat exchanger.
For according to paragraph 6) heat exchanger, closure member is shared for inlet header and outlet header.This has reduced the quantity of element.
For paragraph 7) interior described heat exchanger, the inlet of this inlet header is positioned to from the refrigerant inlet of this fish plate and partly upwards departs from, thereby the advantage that the cold-producing medium that flows into this inlet header by entering the mouth flows because of guide part with being inclined upwardly becomes more obvious, thereby make cold-producing medium to flow to position more reposefully, become even with what make the cold-producing medium that flows through all heat-exchange tubes effectively by inlet header away from inlet.
According to paragraph 7) the advantage of heat exchanger at paragraph 8) in become more remarkable in the described heat exchanger.
According to paragraph 9) heat exchanger in, fish plate is shared for inlet header and outlet header.This makes the quantity of element reduce.
According to paragraph 10) heat exchanger in, the refrigerant inlet of fish plate is partly gone up to engage the refrigerant inlet pipe, the refrigerant outlet of this fish plate is partly gone up to engage simultaneously the refrigerant outlet pipe.According to paragraph 11), the end of this inlet tube and outlet is shunk and is inserted in respectively in intake section and the exit portion.This has reduced the external diameter of intake section and exit portion greatly, thereby makes the bigger interval of formation between this intake section and the exit portion.Therefore, even when the front and back of this fish plate are size-constrained, also can there be bigger zone to be used for the engaging of part and this inlet header and outlet header between the entrance and exit part of this fish plate, thereby make this joint defective not occur, and prevent that this inlet header and outlet header are short-circuited.As a result, can prevent from not enter outlet, and prevent that the heat exchange performance of heat exchanger is impaired by the cold-producing medium peripheral passage by the cold-producing medium that inlet tube flows into.In addition, can when inlet header flows into inlet tube, increase the flow velocity of cold-producing medium at cold-producing medium in that constricted end portion is set on the inlet tube, thereby make cold-producing medium can more easily be diffused into the other end of inlet header, and improve paragraph 1) in the performance of described heat exchanger.
According to paragraph 15) heat exchanger in, separating device is used to make the amount of the cold-producing medium that flows through all heat-exchange tubes that are bonded on the inlet header more even, and further make the amount of the cold-producing medium that flows through all heat-exchange tubes that are bonded on the outlet header even, thereby can further improve the heat exchange performance of heat exchanger.
Paragraph 16) quantity of the element of described heat exchanger reduces in.
According to paragraph 17) heat exchanger in, the spacer assembly of inlet-EXPORT CARTON and separating device and second parts are integral.This makes these install easier being arranged in inlet-EXPORT CARTON.
Description of drawings
Fig. 1 is the integrally-built part abridged perspective view that is suitable for use as the heat exchanger of the present invention of evaporimeter;
Fig. 2 is the vertical sectional view of the evaporimeter of Fig. 1, has wherein omitted mid portion;
Fig. 3 is the decomposition diagram of refrigerant inlet-EXPORT CARTON;
Fig. 4 is the partial sectional view along the line A-A in Fig. 2;
Fig. 5 is the partial sectional view along the line B-B in Fig. 2;
Fig. 6 is the partial sectional view along the line C-C in Fig. 2;
Fig. 7 is the decomposition diagram that inlet-EXPORT CARTON, right lid and fish plate are shown enlargedly;
Fig. 8 is the perspective view of right lid;
Fig. 9 is the enlarged partial view of Fig. 2;
Figure 10 is the decomposition diagram of refrigerant turn tank;
Figure 11 illustrates the figure how cold-producing medium flows through evaporimeter shown in Figure 1.
The specific embodiment
Embodiments of the invention are described below with reference to accompanying drawings.This embodiment is the heat exchanger of the present invention as the evaporimeter in the motor vehicle air conditioning system.
In the following description, the left-hand side of Fig. 2 and right-hand side will be called " left side " and " right side ".
Fig. 1 and 2 illustrates the motor vehicle air conditioning system evaporimeter overall structure of using heat exchanger of the present invention, and Fig. 3 to 10 illustrates the structure of major part, and Figure 11 illustrates cold-producing medium and how to flow through evaporimeter.
Fig. 1 and 2 illustrates the evaporimeter 1 of the Vehicular air-conditioning apparatus that is used for wherein using the chlorofluorocarbon cold-producing medium.Evaporimeter 1 comprises that one of compartment of terrain is arranged on aluminium refrigerant inlet-EXPORT CARTON 2 and the aluminium refrigerant steering box 3 on another, and is arranged on the heat exchange core 4 between these two casees 2,3.
Refrigerant inlet-EXPORT CARTON 2 comprises the refrigerant inlet header 5 that is placed in toe lateral (with respect to the downstream of the direction of the stream of the air by evaporimeter) and is placed in the refrigerant outlet collector 6 of rear portion side (with respect to the upstream side of the direction of air stream).Aluminium refrigerant inlet tube 7 is connected to the inlet header 5 of case 2, and aluminium refrigerant outlet 8 is connected to the outlet header 6 of this case.The cold-producing medium outflow collector 11 (cold-producing medium outflow intermediate header) that refrigerant turn tank 3 comprises the cold-producing medium inflow collector 9 (cold-producing medium inflow intermediate header) that is placed in toe lateral and is placed in rear portion side.
Heat exchange core 4 comprise form be before and after parallel a plurality of rows that are provided with-in present embodiment be two rows-pipe group 13, each pipe group 13 comprises that the compartment of terrain is along the parallel a plurality of heat-exchange tubes 12 that are provided with of left and right directions.Air between adjacent each opposite heat tube 12 of pipe group 13 by the gap in and be respectively arranged with corrugated fin 14 in the outside of the heat-exchange tube 12 at the two ends, the left and right sides of pipe group 13, described fin all is soldered on the heat-exchange tube 12 that is adjacent.The outside soldering of the corrugated fin 14 at two ends, the left and right sides be provided with aluminum side plate 15.The top and bottom of the heat-exchange tube 12 of anterior pipe group 13 are charged into and are joined to inlet header 5 respectively and flow into collector 9, and outlet header 6 is charged into and joined in the top and bottom of the heat-exchange tube 12 of rear portion pipe group 13 respectively and flow out collector 11.The heat-exchange tube 12 that flows into collector 9, outflow collector 11 and pipe group 13 constitutes the cold-producing medium peripheral passages, so that inlet header 5 is communicated with outlet header 6 by this path.
With reference to Fig. 3 to 6, refrigerant inlet-EXPORT CARTON 2 comprises second parts 17 on the top of making and cover first parts 16 by tabular first parts of making at the two aluminium soldering sheet materials that have the brazing material layer relatively on the surface and engage with heat-exchange tube 12 16, by naked aluminium (bare aluminum) extrusion profile and the aluminium lid 18,19 (closure elements) of two ends to seal corresponding both ends open of being made and joined to described two parts 16,17 by the aluminium soldering sheet material that has the brazing material layer on two relative surfaces.Soldering has aluminium fish plate 21 along fore-and-aft direction elongation to extend across inlet header 5 and outlet header 6 on the outer surface of the lid 19 that is positioned at right-hand member.Refrigerant inlet and outlet 7,8 are bonded on the fish plate 21.
The cross section of second parts 17 totally is a m shape and under shed, these second parts comprise horizontal expansion former and later two walls 26, be arranged in the middle part between these two walls 26 and horizontal expansion totally is the connecting wall 28 of circular arc with the partition wall 27 of the separating device that is divided into former and later two spaces as the inside with refrigerant inlet-EXPORT CARTON 2 and two, this connecting wall is protruding upward and at the upper end of front and back walls 26 partition wall 27 is connected integratedly with corresponding front and back walls.Rear wall 26 and partition wall 27 interconnect integratedly by resistance plate 29 on their the whole length of lower end at parts 17, and this resistance plate is used for outlet header 6 is divided into upper and lower two space 6a, 6b.Baffle-wall 29 is being formed with except the left part of this plate and the posterior office the right part along transverse extension and the cold-producing medium that is provided with along ground, lateral separation within it by hole 31A, 31B.The outstanding lower end that surpasses front and back walls 26 of the lower ends downward of partition wall 27, and have a plurality of protuberance 27a integratedly, described protuberance is given prominence to downwards, is provided with and is assemblied in the through hole 25 of first parts 16 along ground, lateral separation from the lower limb of wall 27.Described protuberance 27a forms by the specified portions of excising partition wall 27.
Referring to Fig. 7 to 9, right lid 19 has the first closure 19A of the right-end openings that is used to seal inlet header 5 and is used to seal the second closure 19B of the right-end openings of outlet header 6.The first closure 19A of right lid 19 has the protuberance left 32 that will be assemblied in the inlet header 5 with being integral.The second closure 19B of right lid 19 has the top protuberance 33 and be positioned under this protuberance 33 and separate and will be assemblied in the bottom protuberance 34 left of the lower space 6b that is lower than baffle-wall 29 of outlet header 6 with it left that will be assemblied in the upper space 6a that is higher than baffle-wall 29 of outlet header 6 with being integral.The protuberance left 32 of right lid 19 has diapire 32a in its front portion, and this diapire 32a has circular refrigerant inlet 37.The top of right lid 19 protuberance 33 left has diapire at its rear portion, and this diapire has refrigerant outlet 38 on its whole wall zone.The internal diameter of inlet is preferably 3～8.5mm.The diapire 32a of the protuberance left 32 of right lid 19 has vertical inside surface.Diapire 32a has the bottom arc edge that limits inlet 37 and be provided with guide part 40 with being integral, and this guide part upwards (left) tilts to extend to inlet header 5 with the inner surface from wall 32a.The form of this guide part 40 is the spheroid section, and has the outstanding end face 40a that is positioned at respect on the inclined plane F of the diapire 32a inclination of protuberance 32 left.The outstanding end face 40a position of guide part 40 thereon inclined plane F and left the low-angle α between the inner surface of the diapire 32a of protuberance 32 be preferably 15～60 degree (see figure 9)s.Right lid 19 has engagement lugs 35 outstanding and that be integrally formed therewith on the circular arc portion between each in edge and its forward and backward lateral edges left thereon.Right lid 19 also has the engagement lugs 36 that is integrally formed therewith on outstanding and in the front and rear of its lower limb each left.
In the part between intake section 45 and exit portion 46 of fish plate 21, be formed be used to prevent the vertical extension seam 47 of short circuit and be communicated with the top and bottom of this seam 47 respectively totally be leg-of-mutton through hole 48,49.Seam 47 along the width of fore-and-aft direction preferably in 1mm.Fish plate 21 has respectively on the upper hole 48 and that form under the bottom hole 49 and outstanding left bend 51,54.Last bend 51 engages with the junction surface that is arranged between inlet header 5 and the outlet header 6, and described junction surface is the junction surface 53 of setting between the overall junction surface 52 that forms on for the top edge between the part of circular arc of two of right side lid 19 and two connecting walls 28 at second parts 17 of inlet-EXPORT CARTON 2.Following bend 54 engages with the junction surface that is arranged between inlet header 5 and the outlet header 6, and described junction surface is at the overall junction surface 55 that forms by above-mentioned flat on for the lower limb between the part of circular arc of two of right side lid 19 and the junction surface 56 of the flat 24 of first parts 16 that comprise inlet-EXPORT CARTON 2.Fish plate 21 also has left engagement lugs 57 outstanding and that form with lower limb respectively in its front-end and back-end.Described lug 57 engages with right lid 19, and is assemblied in and is formed in this recess 19a that covers 19 lower limbs.
The constriction 7a that is formed on an end of inlet tube 7 is inserted in and brazed on the intake section 45 of fish plate 21, and the constriction 8a that is formed on an end of outlet 8 is inserted in and brazed on the exit portion 45 of fish plate 21.Although not shown, on the other end of inlet tube 7 and outlet 8, be provided with the expansion valve installing component across these two pipes.
Soldering is together in the following manner for 16,17, two of first and second parts of refrigerant inlet-EXPORT CARTON 2 lid 18,19 and fish plate 21.First and second parts 16,17 utilize on first parts 16 the mutual soldering of brazing material layer together, the protuberance 27a undercut of second parts 17 simultaneously engages the respective through hole 25 of inserting first parts 16 (crimping engagement), and the upper end of the forward and backward upstanding wall 22a of first parts 16 combines with the lower end of the front and back walls 26 of second parts 17 thus.Two lids 18,19 utilize described lid 18, brazing material layer soldering on 19 is at first and second parts 16, on 17, anterior simultaneously protuberance 39,32 are contained in two parts 16, in 17 in partition wall 27 front space forward, the last protuberance 41 at rear portion, 33 are contained in two parts 16, in 17 from partition wall 27 backward and be higher than in the upper space of baffle-wall 29, the following protuberance 42 at rear portion, 34 are contained in from partition wall 27 backward and be lower than in the lower space of baffle-wall 29, last engagement lugs 43,35 engage with the connecting wall 28 of second parts 17, and engagement lugs 44 down, 36 engage with the curved portions 22 of first parts 16.Fish plate 21 utilizes the brazing material layer soldering of right lid 19 on this right side lid 19, going up simultaneously bend 51 is bonded in the junction surface 53 of covering 19 the last junction surface 52 and second parts 17, following bend 54 is bonded in the junction surface 56 of covering 19 the following junction surface 55 and first parts 16, and engagement lugs 57 engages and is formed in the recess 19a that covers 19 lower limb.
Like this, just made refrigerant inlet-EXPORT CARTON 2.Second parts 17 from partition wall 27 part forward as inlet header 5, and parts 17 from partition wall 27 part backward as outlet header 6.Outlet header 6 is divided into space, upper and lower part 6a, 6b by resistance plate 29, and described space keeps being communicated with by hole 31A, 31B by cold-producing medium.The refrigerant outlet 38 of right lid 19 is communicated with the upper space 6a of outlet header 6.The refrigerant inlet part 45 of fish plate 21 is communicated with refrigerant inlet 37, and the refrigerant outlet part 46 of this fish plate is communicated with outlet 38.
Referring to Fig. 4 and 10, refrigerant turn tank 3 comprises second parts 71 of the downside of making and cover first parts 70 by tabular first parts of making at the two aluminium soldering sheet materials that have the brazing material layer relatively on the surface and engage with heat-exchange tube 12 70, by naked aluminum extruded section bar and is made to be used to seal the aluminium lid 72 of left and right sides both ends open by the aluminium soldering sheet material that has the brazing material layer on two relative surfaces.
First parts 70 have the middle part circular cross-section protruding upward on its fore-and-aft direction, and be provided with its forward and backward lateral edges all form and whole length at these first parts 70 on the vertical wall 70a that extends.The upper surface of first parts 70 is as the end face 3a of refrigerant turn tank 3, and the outer surface of the wall 70a that hangs down is as the front or rear side 3b of case 3.Described groove 74 is formed in each of front and back sidepiece of first parts 70, and extends to the lower end of the wall 70a that hangs down from the highest part 73 at the middle part that is in fore-and-aft direction of parts 70.In the forward and backward sidepiece except the highest part 73 of its center of first parts 70, adjacent each be formed with between to groove 74 along the pipe interpolation slit 75 of fore-and-aft direction elongation.Every pair of corresponding forward and backward pipe interpolation slit 75 is in same position in the horizontal.First parts 70 have in the formation the highest part 34 in the middle and a plurality of through holes 76 of arranging of compartment of terrain in the horizontal.Make vertical wall 70a, groove 74, pipe interpolation slit 75 and the through hole 76 that first parts 70 form first parts 70 simultaneously by utilizing pressure processing with aluminium soldering sheet material.
The cross section of second parts 71 totally is w shape and upward opening, these second parts comprise former and later two walls 77, vertical partition wall 78 and two connecting walls 79, described front and rear wall 77 respectively forward and backward outwardly and bending up and horizontal expansion, described vertical partition wall 78 is arranged between these two walls 77, also is used as the separating device that the inside of refrigerant turn tank 3 is divided into two spaces of front and rear along horizontal expansion, and described connecting wall 79 makes this partition wall 78 be connected integratedly with corresponding front and back walls 77 in the lower end.Partition wall 78 has the upper end that projects upwards above the upper end of front and back walls 77, and has from it that the edge projects upwards with it with being integral, is provided with and is assemblied in a plurality of protuberance 78a in the corresponding through hole 76 of first parts 70 along ground, lateral separation.Partition wall 78 thereon in the edge adjacent each be provided with cold-producing medium by otch 78b between to protuberance 78a.Protuberance 78a and otch 78b form by the specified portions of excising partition wall 78.
By squeezing out front and rear wall 77, partition wall 78 and connecting wall 79, and cutting partition wall 78 is made second parts 71 to form protuberance 78a and otch 78b.
The front portion of each lid 72 has laterally inwardly protuberance 81, and this protuberance is formed on the horizontal inboard of lid and can be assemblied in lid and flows in the collector 9.The rear portion of lid 72 has laterally inwardly protuberance 82, and this protuberance is formed on the horizontal inboard of this lid and can be assemblied in lid and flows out in the collector 11.Each lid 72 has laterally inwardly outstanding engagement lugs 83 in the arc sections office between its lower limb and its each forward and backward lateral edges, also have along the fore-and-aft direction compartment of terrain to be provided with, to be integrally formed in the top edge of lid and a plurality of engagement lugs 84 of laterally inwardly giving prominence to.
Soldering is together in the following manner for first and second parts 70,71 of steering box 3 and two lid 72.First and second parts 70,71 utilize on first parts 70 the mutual soldering of brazing material layer together, the protuberance 78a undercut of second parts 71 simultaneously engages the lower end of inserting the front and rear portions upstanding wall 70a of respective through hole 76, the first parts 70 in ground and combines with the upper end of the front and back walls 77 of second parts 71.Described two lids, 72 utilizations are covered 72 brazing material layer soldering on first and second parts 70,71, simultaneously anterior protuberance 81 is contained in that limit and in partition wall 78 space forward by described two parts 70,71, the protuberance 82 at rear portion is contained in that limit and in partition wall 78 space backward by described two parts 70,71, last engagement lugs 84 engages with second parts 70, and engagement lugs 83 engages with the front and back walls 77 of second parts 71 down.So just formed refrigerant turn tank 3.Second parts 71 from partition wall 78 part forward as flowing into collector 9, and these parts from partition wall 78 part backward as flowing out collector 11.The upper end open of otch 78b in the partition wall 78 of second parts 71 is passed through hole 85 by 70 sealings of first parts thereby form cold-producing medium.Flow into collector 9 by being communicated with outflow collector 11 by hole 85.
The heat-exchange tube 12 that constitutes front and rear pipe group 13 is made by aluminum extruded section bar.Each pipe 12 be flat, have big width and have along the longitudinal extension of this pipe and a plurality of coolant channel 12a (see figure 6)s that are arranged in parallel along fore-and-aft direction in inside.Insert in the interpolation slit 23 of first parts 16 of refrigerant inlet-EXPORT CARTON 2 pipe 12 upper end, and the brazing material layer soldering that utilizes first parts 16 is on these parts 16.Insert in the interpolation slit 75 of first parts 70 of refrigerant turn tank 3 pipe 12 bottom, and the brazing material layer soldering that utilizes first parts 70 is on these parts 70.
Preferably, in a lateral direction thickness of the height of heat-exchange tube 12-promptly-be 0.75～1.5mm, width on fore-and-aft direction is 12～18mm, the wall thickness of its circumferential wall is 0.175～0.275mm, with the thickness of coolant channel partition wall spaced apart from each other is 0.175～0.275mm, the spacing of partition wall is 0.5～3.0mm, and the radius of curvature of the outer surface of forward and backward end walls is 0.35～0.75mm.
Can use the aluminum resistance weld pipe to replace the heat-exchange tube of being made by aluminum extruded section bar 12, this resistance weld pipe has by inner fin being inserted in the pipe and a plurality of coolant channels that form in this pipe.Also can use the pipe of making by such plate, this plate is become by rolling processing and preparing by the aluminium soldering sheet material that has the aluminium soldering material layer on a surface, and comprise two flat wall formation portions that engage by connecting portion, be formed in each flat wall formation portion and give prominence to and a plurality of portions that are separated to form of compartment of terrain layout on its width with being integral with it from the outstanding sidewall formation portion of a side relative of this flat wall formation portion and from each flat wall formation portion with this connecting portion, this pipe is by at the connecting portion place this plate being bent to hair clip shape, and sidewall is formed portion, and partition wall makes to form by the portion of being separated to form together with the mutual soldering of opposite joining relation.
By will except the combined and tack of the parts refrigerant inlet pipe 7 and the outlet 8 together and the assembly of common soldering institute tack make evaporimeter 1.
With reference to Figure 11 that this evaporimeter 1 is shown, the solution-air mixing two-layer cold-producing medium mutually that flows through compressor, condenser and expansion valve enters the refrigerant inlet header 5 of inlet-EXPORT CARTON 2 via the refrigerant inlet part 45 of refrigerant inlet pipe 7, fish plate 21 and the refrigerant inlet 37 of right lid 19, and dividedly flows into the coolant channel 12a of all heat-exchange tubes 12 in the anterior pipe group 13.
Because inlet 37 is positioned to and upwards departs from intake section 45,, and also further upwards incline to the left tiltedly mobile because of the portion's of being directed to 40 guiding so cold-producing medium upwards inclined to the left towards inlet 37 from intake section 45 and tiltedly flowed this moment.Cold-producing medium flows to the left end of this collector 5 reposefully by inlet header 5, and flows into equably in all heat-exchange tubes 12 of anterior pipe group 13.When the internal diameter of the constriction 7a of inlet tube 7 was 3～8.5mm, the cold-producing medium that is sent out via inlet tube 7 can have high speed, thereby is easy to flow to by inlet header 5 left end of this collector 5, and flows into all heat-exchange tubes 12 of anterior pipe group 13 equably.This feasible cold-producing medium that flows through all heat-exchange tubes 12 of the front portion pipe group 13 that is bonded on the inlet header 5 has even flow.
The cold-producing medium that flows into the passage 12a of all heat-exchange tubes 12 is downward through passage 12a, and the cold-producing medium that enters refrigerant turn tank 3 flows into collector 9.Cold-producing medium in the collector 9 flows into cold-producing medium outflow collector 11 by the cold-producing medium of partition wall 78 by hole 85.
Flow into coolant channel 12a that the cold-producing medium that flows out in the collector 11 dividedly flows into all heat-exchange tubes 12 of rear portion pipe group 13, change its route and upwards enter the lower space 6b of outlet header 6 by passage 12a.Because it is even to flow through the flow velocity of cold-producing medium of all pipes 12 of the front portion pipe group 13 that is bonded on the inlet header 5, be included in the rear portion pipe group 13 and to be bonded on the flow velocity of cold-producing medium of all pipes 12 on the outlet header 6 also even so flow through.In addition, the resistance that resistance plate 29 provides to cold-producing medium stream makes cold-producing medium can flow into all heat-exchange tubes 12 of rear portion pipe group 13 from outflow collector 11 equably, and this also makes cold-producing medium flow into all pipes 12 of anterior pipe group 13 more equably from inlet header 5.As a result, cold-producing medium flows through all heat-exchange tubes 12 of two pipe groups 13 with uniform amount.
Subsequently, cold-producing medium passes through the upper space 6a that hole 31A, 31B flow into outlet header 6 by the cold-producing medium of baffle-wall 29, and flows out evaporimeters via the refrigerant outlet 38 of right side lid 19, the exit portion 46 and the outlet 8 of fish plate 21.When the coolant channel 12a of the heat-exchange tube 12 of the coolant channel 12a of the heat-exchange tube 12 that flows through anterior pipe group 13 and rear portion pipe group 13, the direction of cold-producing medium and arrow X shown in Fig. 1 flows through the air of air by the gap and carries out heat exchange, and flows out evaporimeter with gas phase.
The flow velocity of the cold-producing medium by making all pipes 12 that flow through the front portion pipe group 13 that is bonded on the inlet header 5 is even, and make the flow velocity that flows through the cold-producing medium that is bonded on all heat-exchange tubes 12 that flow out the rear portion pipe group 13 on the collector 6 also even, can make and help the amount of the cold-producing medium that freezes even along the left and right directions of heat exchange core 4, and make the temperature of the air by heat exchange core 4 even, thereby make the heat exchange performance of evaporimeter 1 have large increase.Especially under the little situation of the flow velocity of cold-producing medium, can prevent the heat exchange performance variation.
During cold-producing medium is flowing through the coolant channel 12a of heat-exchange tube 12 of the coolant channel 12a of heat-exchange tube 12 of anterior pipe group 13 and rear portion pipe group 13 with in Fig. 1 shown in the direction of arrow X when flowing through the air of air by the gap and carrying out heat exchange, generate condensed water on the surface of corrugated fin 14, this condensed water flows to the end face 3a of steering box 3 downwards.The condensed water that flows to case end face 3a downwards flows through groove 74 and falls steering box 3 belows from the front portion or the outer back end of groove 74 owing to capillary effect enters groove 74.Can prevent that so a large amount of condensed waters from accumulating between the lower end of the end face 3a of steering box 3 and corrugated fin 14, thereby prevent the condensate freezes that the gathering owing to a large amount of condensed waters causes, avoid evaporimeter 1 operating efficiency deficiency thus.
According to previous embodiment, at the inlet header 5 of two casees 2,3 with flow between the collector 9 and at the outlet header 6 of described two casees with flow out a group 13 all is set between the collector 11, but this setting is not restrictive; Can and flow between the collector 9 and at the outlet header 6 of these two casees with flow out one or at least two groups 13 all are set between the collector 11 at the inlet header 5 of two casees 2,3.Can use steering box 3 wherein to be positioned at the evaporimeter of inlet-EXPORT CARTON 2 tops.
According to previous embodiment, refrigerant inlet pipe 7 and refrigerant outlet pipe 8 join the intake section 45 and the exit portion 46 of fish plate 21 respectively to, simultaneously the expansion valve installed part extends across two ends of described pipe 7,8 and soldering thereon, but also can directly join the expansion valve installed part to fish plate 21.
Although as evaporimeter, this Implementation Modes is not restrictive according to previous embodiment heat exchanger of the present invention; The present invention also can be used for various other heat exchangers.
Industrial applicibility
Heat exchanger of the present invention is suitable for use as the evaporimeter in the motor vehicle air conditioning system, this motor vehicle sky Transferring device is the kind of refrigeration cycle that will be installed in the motor vehicle.
Claims (19)
1. heat exchanger; Be included in refrigerant inlet header and the refrigerant outlet collector that the upper end edge fore-and-aft direction of this heat exchanger is arranged side by side and be used for the refrigerant circulation path that keeps these two collectors to be communicated with; This inlet header has refrigerant inlet at place, an end; This outlet header has refrigerant outlet at itself and this entrance end side by side; Cold-producing medium can flow into this inlet header from this entrance; Can return this outlet header to discharge from heat exchanger by this outlet by this peripheral passage then
This refrigerant inlet is arranged in the closure member, this closure member seal this inlet header place, described end opening and have lower limb, this lower limb limits this refrigerant inlet and is provided with acclivitous guide part in the inlet header.
2. according to the heat exchanger of claim 1, it is characterized in that the form of described guide part is the spheroid section.
3. according to the heat exchanger of claim 1, it is characterized in that the refrigerant inlet of described inlet header is circular, and internal diameter is 3～8.5mm.
4. according to the heat exchanger of claim 1, it is characterized in that described guide part has outstanding end face, this outstanding end face is positioned on the clinoplain that tilts with respect to the vertical inside surface of described closure member.
5. according to the heat exchanger of claim 4, it is characterized in that, the vertical inside surface that the outstanding end face of described guide part is positioned at clinoplain on it and this closure member form 15～60 degree than small inclination.
6. according to the heat exchanger of claim 1, it is characterized in that, described closure member has described open-ended first closure of this inlet header of sealing and is enclosed in described open-ended second closure with this inlet this outlet header side by side, this first closure has described refrigerant inlet and guide part, and this second closure has described refrigerant outlet.
7. according to the heat exchanger of claim 1, it is characterized in that, described inlet header has fish plate, this fish plate joins the described end of this inlet header to and has the refrigerant inlet part that is communicated with the refrigerant inlet of this closure member, and the center of the refrigerant inlet part of this fish plate is upwards departed from the center of the refrigerant inlet of described inlet header.
8. according to the heat exchanger of claim 7, it is characterized in that the deviation at the center of the center of the refrigerant inlet of described inlet header and described refrigerant inlet part is 0.5～3mm.
9. according to the heat exchanger of claim 7, it is characterized in that described fish plate extends across and join to described inlet header and outlet header; Except the refrigerant inlet part that is communicated with this refrigerant inlet, this fish plate also has the refrigerant outlet part that is communicated with this refrigerant outlet.
10. according to the heat exchanger of claim 9, it is characterized in that the refrigerant inlet of described fish plate is partly gone up to engage the refrigerant inlet pipe, the refrigerant outlet of described fish plate is partly gone up to engage the refrigerant outlet pipe.
11. heat exchanger according to claim 10, it is characterized in that, described inlet tube has the constriction in the refrigerant inlet part that is formed on its end and inserts described fish plate, described outlet has the constriction in the refrigerant outlet part that is formed on its end and inserts described fish plate, and described inlet tube and outlet join described fish plate to.
12. the heat exchanger according to claim 9 is characterized in that, described fish plate has joint expansion valve installed part thereon, and this expansion valve installed part has respectively and described refrigerant inlet part and partially communicating two coolant channels of refrigerant outlet.
13. the heat exchanger according to claim 1 is characterized in that, described cold-producing medium peripheral passage comprises a plurality of intermediate header and a plurality of heat-exchange tube.
14. heat exchanger according to claim 1, it is characterized in that, described outlet header is arranged on the rear portion of described inlet header, described cold-producing medium peripheral passage comprises and is arranged under this inlet header and the cold-producing medium relative with this inlet header flows into intermediate header, be arranged under this outlet header and the cold-producing medium relative outflow intermediate header and a plurality of heat-exchange tube with this outlet header, described inflow intermediate header is communicated with the outflow intermediate header, described a plurality of heat-exchange tube is at each relative paired inlet header and flow into intermediate header and relative paired outlet header and flow out that the compartment of terrain is provided with between the intermediate header, be at least one row's pipe group and constitute heat exchange core that with the formation form two ends of the heat-exchange tube of this pipe group join each collector respect to one another to.
15. heat exchanger according to claim 14, it is characterized in that, the inside of described outlet header is separated device and is divided into the first and second two spaces that are provided with along short transverse, described heat-exchange tube extends in this first space, this separating device has cold-producing medium by the hole, and second space of described outlet header is communicated with this refrigerant outlet.
16. the heat exchanger according to claim 14 is characterized in that, described inlet header and outlet header are by using spacer assembly that the inside of a refrigerant inlet-EXPORT CARTON is divided into anterior part and rear portion forms.
17. heat exchanger according to claim 16, it is characterized in that, described inlet-EXPORT CARTON comprise heat-exchange tube engage thereon first parts, the part soldering relative of these first parts with heat-exchange tube on these first parts second parts and soldering at the closure member at the two ends of these first and second parts, this spacer assembly and separating device and this second parts formation one.
18. a kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, this evaporimeter comprise according to any one heat exchanger in the claim 1 to 17.
19. a vehicle wherein is equipped with according to the kind of refrigeration cycle of claim 18 with as Vehicular air-conditioning apparatus.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004084608 | 2004-03-23 | ||
| JP084608/2004 | 2004-03-23 | ||
| US60/556,370 | 2004-03-26 | ||
| JP072696/2005 | 2005-03-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1934405A true CN1934405A (en) | 2007-03-21 |
| CN100535555C CN100535555C (en) | 2009-09-02 |
Family
ID=37879368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200580009206XA Expired - Fee Related CN100535555C (en) | 2004-03-23 | 2005-03-23 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100535555C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886891A (en) * | 2010-07-20 | 2010-11-17 | 三花丹佛斯（杭州）微通道换热器有限公司 | Refrigerant guiding device and heat exchanger with same |
| CN101963473A (en) * | 2010-10-29 | 2011-02-02 | 三花丹佛斯（杭州）微通道换热器有限公司 | End cover and heat exchanger with same |
| CN103759572A (en) * | 2013-12-10 | 2014-04-30 | 柳州五菱宝马利汽车空调有限公司 | Bayonet-tube collecting and distributing tube for automotive parallel flow evaporator |
| CN104833136A (en) * | 2014-02-07 | 2015-08-12 | Lg电子株式会社 | Heat exchanger |
| CN104937362B (en) * | 2013-02-01 | 2017-10-27 | 翰昂汽车零部件有限公司 | Heat exchanger |
| CN112105515A (en) * | 2018-03-23 | 2020-12-18 | 摩丁制造公司 | High pressure tolerant liquid-to-refrigerant heat exchanger |
| CN113383205A (en) * | 2019-02-13 | 2021-09-10 | 翰昂汽车零部件有限公司 | Heat exchanger |
-
2005
- 2005-03-23 CN CNB200580009206XA patent/CN100535555C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886891A (en) * | 2010-07-20 | 2010-11-17 | 三花丹佛斯（杭州）微通道换热器有限公司 | Refrigerant guiding device and heat exchanger with same |
| CN101963473A (en) * | 2010-10-29 | 2011-02-02 | 三花丹佛斯（杭州）微通道换热器有限公司 | End cover and heat exchanger with same |
| CN104937362B (en) * | 2013-02-01 | 2017-10-27 | 翰昂汽车零部件有限公司 | Heat exchanger |
| CN103759572A (en) * | 2013-12-10 | 2014-04-30 | 柳州五菱宝马利汽车空调有限公司 | Bayonet-tube collecting and distributing tube for automotive parallel flow evaporator |
| CN104833136A (en) * | 2014-02-07 | 2015-08-12 | Lg电子株式会社 | Heat exchanger |
| CN104833136B (en) * | 2014-02-07 | 2017-09-05 | Lg电子株式会社 | Heat exchanger |
| CN112105515A (en) * | 2018-03-23 | 2020-12-18 | 摩丁制造公司 | High pressure tolerant liquid-to-refrigerant heat exchanger |
| CN112105515B (en) * | 2018-03-23 | 2023-10-24 | 摩丁制造公司 | High pressure tolerant liquid-to-refrigerant heat exchanger |
| CN113383205A (en) * | 2019-02-13 | 2021-09-10 | 翰昂汽车零部件有限公司 | Heat exchanger |
| CN113383205B (en) * | 2019-02-13 | 2023-04-04 | 翰昂汽车零部件有限公司 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100535555C (en) | 2009-09-02 |
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