CN100567876C - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CN100567876C
CN100567876C CNB2006800025708A CN200680002570A CN100567876C CN 100567876 C CN100567876 C CN 100567876C CN B2006800025708 A CNB2006800025708 A CN B2006800025708A CN 200680002570 A CN200680002570 A CN 200680002570A CN 100567876 C CN100567876 C CN 100567876C
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China
Prior art keywords
header portion
heat exchanger
intermediate header
cold
producing medium
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CNB2006800025708A
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CN101107493A (en
Inventor
东山直久
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Mahle Behr Thermal Systems Japan Ltd
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Showa Denko KK
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Abstract

Heat exchanger (1) comprising: heat exchange core portion (4); Be arranged on the refrigerant inlet header portion (5) and the refrigerant outlet collector portion (6) of the upper end side of heat exchanger tube (12); Flow into intermediate header portion (9) and cold-producing medium outflow intermediate header portion (11) with the cold-producing medium of the lower end side that is arranged on heat exchanger tube (12).In the second intermediate header portion (11), be provided with flow-dividing control wall (67c), this flow-dividing control wall have a plurality of cold-producing mediums by hole (71) and with the inside of the second intermediate header portion (11) be divided into two spaces (11A, 11B).Between the lower space (11B) of the first intermediate header portion (9) and the second intermediate header portion (11), at one end realize being communicated with.Flow at the cold-producing medium of the second intermediate header portion (11) that the end is provided with targeting part (80) so that guiding flows into the cold-producing medium of the lower space (11B) of the second intermediate header portion (11), make cold-producing medium towards flow-dividing control wall (67c) i.e. side flow up.This heat exchanger has extraordinary heat exchange performance as evaporimeter the time.

Description

Heat exchanger
The cross reference of related application
The application proposes according to 35U.S.C. § 111 (a), and according to the provisional application No.60/645 according to 35U.S.C. § 111 (b) submission of 35U.S.C. § 119 (e) (1) requirement on January 24th, 2005,612 applying date interests.
Technical field
The present invention relates to a kind of heat exchanger, relate in particular to preferably the heat exchanger as the evaporimeter of automotive air conditioning device, this automotive air conditioning device is the kind of refrigeration cycle that is mounted on the automobile for example.
In the text and in the claims, the downstream of air-flow (side of the arrow X indication in Fig. 1 and 11, and the right-hand side in Fig. 3) is called as " preceding ", and opposition side will be called as " back ".The upside of Fig. 2 and downside will be hereinafter referred to as " on " and D score.
Background technology
Usually, so-called layer evaporator has been widely used as the evaporimeter that is used for automotive air conditioning device.In layer evaporator, a plurality of flat, hollow members serve are set abreast, each these parts comprise a pair of mutually in the face of and at their peripheral part soldering depression plate together, and between adjacent flat, hollow members serve, all be provided with corrugated fin and corrugated fin soldering thereon.
In recent years, require the size of evaporimeter and weight further to reduce and have more performance.The known evaporimeter that satisfies these requirements comprises: be configured to set of heat exchange tubes and be arranged to the two heat exchange core portions of arranging along fore-and-aft direction, each set of heat exchange tubes comprises a plurality of heat exchanger tubes that the predetermined space of being separated by is provided with; Be arranged on half heat exchanger tube connection refrigerant inlet header portion thereon of the left side of the upper end side and the anterior set of heat exchange tubes of heat exchanger tube; Be set in place in half heat exchanger tube of the left side of the upper end side of the heat exchanger tube of the rear side of refrigerant inlet header portion and rear heat exchange tubes group and connect thereon refrigerant outlet collector portion; The heat exchanger tube that is arranged on the lower end side of heat exchanger tube and is connected to the set of heat exchange tubes of refrigerant inlet header portion connects the first intermediate header portion thereon; Be arranged on the right side of the first intermediate header portion and the remaining heat exchanger tube connection second intermediate header portion thereon of anterior set of heat exchange tubes; Be set in place in the upper end side of the heat exchanger tube on the right side of refrigerant inlet header portion and the heat exchanger tube that is connected with the second intermediate header portion and connect thereon the 3rd intermediate header portion; Be set in place in the residue heat exchanger tube of the upper end side of the heat exchanger tube of the rear side of the 3rd intermediate header portion and rear heat exchange tubes group and connect thereon the 4th intermediate header portion; Be set in place in the lower end side of the heat exchanger tube of the rear side of the second intermediate header portion and the heat exchanger tube that is connected with the 4th intermediate header portion and connect thereon the 5th intermediate header portion; And be set in place in the lower end side of the heat exchanger tube in the left side of the 5th intermediate header portion and the heat exchanger tube that is connected with refrigerant outlet collector portion and connect thereon the 6th intermediate header portion.The cold-producing medium that flows into refrigerant inlet header portion flows into refrigerant outlet collector portion by the heat exchanger tube and first to the 6th collector portion, flows out (with reference to open surely (Kokai) No.2003-214794 of Japanese patent unexamined) from refrigerant outlet collector portion then.
In open file in the disclosed evaporimeter, the first intermediate header portion and the second intermediate header portion are arranged to single collector portion with being integral, the 5th intermediate header portion and the 6th intermediate header portion are arranged to single collector portion with being integral, and cold-producing medium flows into this two intermediate header portions from the longitudinal end of the second intermediate header portion and the 6th intermediate header portion.
But, in open file in the disclosed evaporimeter, flow into the dark side flow that the cold-producing medium of the second intermediate header portion or the 6th intermediate header portion will be in the intermediate header portion, and unlikely flow into the heat exchanger tube of the cold-producing medium inflow side that is connected to intermediate header portion.As a result, cold-producing medium unlikely evenly flows into all heat exchanger tubes that are connected with two intermediate header portions.Therefore, the distribution of the cold-producing medium in the heat exchange core portion becomes inhomogeneous, and the temperature of the air by heat exchange core portion becomes inhomogeneous in some positions, thereby heat exchange performance does not fully improve.
The objective of the invention is to overcome the problems referred to above and a kind of heat exchanger with extraordinary heat exchange performance is provided.
Summary of the invention
To achieve these goals, the present invention comprises following pattern.
1) a kind of heat exchanger, this heat exchanger comprises along refrigerant inlet header portion that fore-and-aft direction be arranged in parallel and refrigerant outlet collector portion, and the refrigerant circulation passage that is used between this collector portion, realizing connection, wherein refrigerant circulation passage is formed by a plurality of intermediate header portions and a plurality of heat exchanger tube; Refrigerant inlet header portion is in the face of the first intermediate header portion; Refrigerant outlet collector portion is in the face of the second intermediate header portion; Between the refrigerant inlet header portion and the first intermediate header portion and between the refrigerant outlet collector portion and the second intermediate header portion at least one set of heat exchange tubes is being set, this set of heat exchange tubes comprises a plurality of heat exchanger tubes of setting separated by a certain interval; The opposed end of the heat exchanger tube of each set of heat exchange tubes is connected to the collector portion of opposed facing correspondence; The cold-producing medium that flows into refrigerant inlet header portion passes through refrigerant circulation passage, and turns back to refrigerant outlet collector portion to be supplied from refrigerant outlet collector portion; And cold-producing medium flows into this intermediate header portion from a vertical end of at least one intermediate header portion, wherein
Vertically be provided with targeting part in the end, cold-producing medium inflow side of end inflow intermediate header portion wherein at cold-producing medium from it, upwards flow so that guiding flows into the cold-producing medium of this intermediate header portion.
2) according to paragraph 1) heat exchanger, this heat exchanger comprises set of heat exchange tubes is arranged to many rows along fore-and-aft direction the heat exchange core portion that is configured to, each set of heat exchange tubes comprises a plurality of heat exchanger tubes of setting separated by a certain interval, wherein refrigerant inlet header portion is arranged on the first distolateral of heat exchanger tube, and the heat exchanger tube of at least one set of heat exchange tubes is connected to this refrigerant inlet header portion; Refrigerant outlet collector portion is set in place first distolateral in the heat exchanger tube at refrigerant inlet header portion rear, and the heat exchanger tube of residue set of heat exchange tubes is connected to this refrigerant outlet collector portion; The first intermediate header portion is arranged on the second distolateral of heat exchanger tube, and the heat exchanger tube that is connected to refrigerant inlet header portion is connected to this first intermediate header portion; The second intermediate header portion is set in place second distolateral in the heat exchanger tube at the first intermediate header portion rear, and the heat exchanger tube that is connected to refrigerant outlet collector portion is connected to this second intermediate header portion; This first intermediate header portion and the second intermediate header portion realize being communicated with in their end; Cold-producing medium flows into this second intermediate header portion from the end that is communicated with the first intermediate header portion of the second intermediate header portion; And the targeting part that the cold-producing medium that is used to guide the second intermediate header portion of inflow upwards flows is arranged on the end, cold-producing medium inflow side of the second intermediate header portion.
3) according to paragraph 2) heat exchanger, wherein in the second intermediate header portion, be provided with and have cold-producing medium by the hole and the internal vertical of the second intermediate header portion is divided into the flow-dividing control device in first and second spaces; The heat exchanger tube that is connected to the second intermediate header portion is towards first space; Between second space of the first intermediate header portion and the second intermediate header portion, realize being communicated with; And the cold-producing medium that the targeting part guiding that is arranged on the end, cold-producing medium inflow side of the second intermediate header portion flows into second space of the second intermediate header portion upwards flows.
4) according to paragraph 3) heat exchanger, wherein in the flow-dividing control device, form a plurality of cold-producing mediums separated by a certain intervally and pass through the hole along the longitudinal direction of the second intermediate header portion.
5) according to paragraph 4) heat exchanger, wherein said cold-producing medium is formed on the rear side that is positioned in the flow-dividing control device with respect to the middle part of fore-and-aft direction by the hole.
6) according to paragraph 2) heat exchanger, wherein said refrigerant inlet header portion and refrigerant outlet collector portion are arranged on the upper end side of heat exchanger tube, and the described first and second intermediate header portions are arranged on the lower end side of heat exchanger tube.
7) according to paragraph 2) heat exchanger, wherein each in the first and second intermediate header portions all has the lid that is used to seal its opposite end; Lid at an end that is positioned at the first intermediate header portion is formed with cold-producing medium outflow opening; Lid at an end that is positioned at the second intermediate header portion is formed with the cold-producing medium inlet opening; And flow out realization connection between opening and the cold-producing medium inlet opening via communication means at cold-producing medium, thereby these two intermediate header portions are interconnected in their end.
8) according to paragraph 7) heat exchanger, wherein said targeting part is set in place in the part of peripheral part of the cold-producing medium inlet opening that forms in the lid of an end of the second intermediate header portion, makes targeting part extend towards the inside of the second intermediate header portion to be inclined upwardly simultaneously or crooked.
9) according to paragraph 8) heat exchanger, wherein said targeting part is bent upwards simultaneously towards the inside extension of the second intermediate header portion, and described targeting part has the arcuate section that is bent upwards simultaneously towards the inside extension of the second intermediate header portion in the cross section of the vertical plane intercepting that the longitudinal direction along the second intermediate header portion extends.
10) according to paragraph 7) heat exchanger, the first intermediate header portion is formed with wherein that cold-producing medium flows out the lid of opening and the lid that wherein is formed with the cold-producing medium inlet opening of the second intermediate header portion is in one, and communication means is fixed on to cover and makes communication means cover extension at these two.
11) according to paragraph 2) heat exchanger, wherein be formed with refrigerant inlet in an end of refrigerant inlet header portion, an end that is positioned at same side in the end with forming refrigerant inlet of refrigerant outlet collector portion is formed with refrigerant outlet.
12) according to paragraph 11) heat exchanger, the inside of wherein said refrigerant outlet collector portion is separated device and vertically is divided into first and second spaces; Heat exchanger tube is connected to refrigerant outlet collector portion with towards first space; In separating device, be formed with cold-producing medium and pass through the hole; And second space of refrigerant outlet collector portion is communicated with refrigerant outlet.
13) according to paragraph 1) heat exchanger, wherein each heat exchanger tube all is a flat form, and is arranged so that their width extends along fore-and-aft direction, and pipe highly is that the thickness of each heat exchanger tube is that 0.75mm is to 1.5mm.
14) according to paragraph 1) heat exchanger, wherein between adjacent heat exchange tubes, be provided with fin; This fin is a waveform, and comprises crest part, trough part and the smooth coupling part that this crest part and trough are partly linked together; The fin height of fin be 7.0mm to 10.0mm, spacing of fin is that 1.3mm is to 1.7mm.
15) according to paragraph 14) heat exchanger, wherein each in the crest of corrugated fin part and the trough part comprises flat, and be positioned at flat correspondence the opposite end and be connected to the fillet part of corresponding coupling part, the radius of curvature of this fillet part is 0.7mm or littler.
According to paragraph 1) heat exchanger, the cold-producing medium that targeting part is arranged on intermediate header portion upwards flows so that guiding flows into the cold-producing medium of this intermediate header portion from the end, cold-producing medium inflow side that its longitudinal end flows into.Therefore, this heat exchanger is realized following effect.That is, be arranged in intermediate header portion under the situation of downside, the cold-producing medium of inflow intermediate header portion is guided by this targeting part and flows towards heat exchanger tube.Therefore, cold-producing medium is easier to flow into the heat exchanger tube that the cold-producing medium that is connected to intermediate header portion flows into sidepiece, thereby cold-producing medium more may flow into the heat exchanger tube that is connected to this intermediate header portion equably.Be arranged in intermediate header portion under the situation of upside, the cold-producing medium that flows into intermediate header portion is directed to the part guiding and upwards flows.Therefore, cold-producing medium can more easily flow into the heat exchanger tube away from the end, cold-producing medium inflow side of intermediate header portion, thereby cold-producing medium more may flow into the heat exchanger tube that is connected to this intermediate header portion equably.Therefore, under any circumstance, it is inhomogeneous that the distribution of the cold-producing medium in the heat exchange core portion unlikely becomes, and the temperature of the air by heat exchange core portion becomes evenly, thereby heat exchange performance improves.
According to paragraph 2) heat exchanger, targeting part is arranged on the end, cold-producing medium inflow side of the second intermediate header portion, the cold-producing medium that flows into this second intermediate header portion with guiding upwards flows.Therefore, this heat exchanger is realized following effect.That is, be arranged under the situation of downside in the second intermediate header portion, the cold-producing medium that flows into the second intermediate header portion is guided by this targeting part and flows towards heat exchanger tube.Therefore, cold-producing medium is easier to flow into the heat exchanger tube that the cold-producing medium that is connected to the second intermediate header portion flows into sidepiece, thereby cold-producing medium more may flow into the heat exchanger tube that is connected to this second intermediate header portion equably.Be arranged under the situation of upside in the second intermediate header portion, the cold-producing medium that flows into the second intermediate header portion is directed to the part guiding and upwards flows.Therefore, cold-producing medium can more easily flow into the heat exchanger tube that flows into sidepiece away from the cold-producing medium of the second intermediate header portion, thereby cold-producing medium more may flow into the heat exchanger tube that is connected to this second intermediate header portion equably.Therefore, under any circumstance, it is inhomogeneous that the distribution of the cold-producing medium in the heat exchange core portion unlikely becomes, and the temperature of the air by heat exchange core portion becomes evenly, thereby heat exchange performance improves.
According to paragraph 3) to 5) in any one heat exchanger, be arranged under the situation of downside in the second intermediate header portion, the cold-producing medium that flows into second space of the second intermediate header portion is guided by this targeting part and flows towards the flow-dividing control device, pass through the hole by cold-producing medium, flow into first space, flow into heat exchanger tube then.Be arranged under the situation of upside in the second intermediate header portion, the cold-producing medium that flows into second space of the second intermediate header portion is directed to the part guiding and upwards flows, and the cold-producing medium by the flow-dividing control device flows into first space by the hole, flows into heat exchanger tube then.Therefore, under any circumstance, be suitable for producing the evenly position of shunting towards the heat exchanger tube that is connected to the second intermediate header portion if cold-producing medium is formed on to be positioned in the flow-dividing control device by the hole, then cold-producing medium more may flow into the heat exchanger tube that is connected to this second intermediate header portion equably.As a result, it is inhomogeneous that the distribution of the cold-producing medium in the heat exchange core portion unlikely becomes, and the temperature of the air by heat exchange core portion becomes evenly, thereby heat exchange performance improves.
According to paragraph 6) heat exchanger, the cold-producing medium that flows into second space of the second intermediate header portion is directed to part towards the guiding of flow-dividing control device, by the hole, flows into first space by cold-producing medium, flows into heat exchanger tube then.Therefore, be suitable for producing the evenly position of shunting towards the heat exchanger tube that is connected to the second intermediate header portion if cold-producing medium is formed on to be positioned in the flow-dividing control device by the hole, then cold-producing medium more may flow into the heat exchanger tube that is connected to this second intermediate header portion equably.As a result, it is inhomogeneous that the distribution of the cold-producing medium in the heat exchange core portion unlikely becomes, and the temperature of the air by heat exchange core portion becomes evenly, thereby heat exchange performance improves.
According to paragraph 7) heat exchanger, the connection between the first intermediate header portion and the second intermediate header portion can realize by better simply structure.
According to paragraph 8) or 9) heat exchanger, targeting part can better simply mode form.
According to paragraph 10) heat exchanger, the lid of two intermediate header portions is in one.Therefore, the quantity of assembly can reduce, and the connection between the first intermediate header portion and the second intermediate header portion can realize by better simply structure.
According to paragraph 13) or 14) heat exchanger, very the mode of balance improves heat exchange performance and prevents that simultaneously air flow resistance from increasing.
Description of drawings
Fig. 1 is a part abridged perspective view, and it illustrates according to the overall structure of heat exchanger of the present invention as evaporimeter;
Fig. 2 is the vertical section partial view, and it illustrates the evaporimeter of the Fig. 1 that sees from the rear portion, has omitted the intermediate portion simultaneously;
Fig. 3 is the enlarged partial view along the section of the line A-A intercepting of Fig. 2;
Fig. 4 is the decomposition diagram of the refrigerant inlet/EXPORT CARTON of the evaporimeter shown in Fig. 1;
Fig. 5 is the decomposition diagram of the refrigerant turn tank of evaporimeter shown in Figure 1;
Fig. 6 is the cutaway view along the section of the line B-B intercepting of Fig. 2;
Fig. 7 illustrates the right-hand side closure member of refrigerant turn tank and the enlarged perspective of communication means;
Fig. 8 is the partial enlarged view of Fig. 2;
Fig. 9 is the cutaway view along the line C-C intercepting of Fig. 8;
Figure 10 is the amplification partial sectional view along the line D-D intercepting of Fig. 3;
Figure 11 is the figure that the cold-producing medium stream in the evaporimeter shown in Figure 1 is shown.
The specific embodiment
Hereinafter describe embodiments of the invention with reference to the accompanying drawings in detail.Hereinafter among the embodiment with explanation, according to the evaporimeter of heat exchanger of the present invention as the automotive air conditioning device that uses the chloro-fluoro-carbon kind cold-producing medium.
In the following description, term " aluminium " also comprises aluminium alloy except fine aluminium.In addition, in the explanation hereinafter, the left-hand side of Fig. 2 and right-hand side will be hereinafter referred to as " left side " and " right side ".
Fig. 1-3 illustrates the total structure of evaporimeter, and Fig. 4-10 illustrates the structure of the major part of evaporimeter.Figure 11 illustrates cold-producing medium and how to flow in evaporimeter.
In Fig. 1-3, be used to use the evaporimeter 1 of the automotive air conditioning device of chloro-fluoro-carbon kind cold-producing medium to comprise the refrigerant turn tank 3 of the refrigerant inlet-EXPORT CARTON 2 and the aluminum of aluminum, refrigerant inlet-EXPORT CARTON 2 and refrigerant turn tank 3 are separated mutual vertically, and comprise the heat exchange core portion 4 that is arranged between refrigerant inlet-EXPORT CARTON 2 and the refrigerant turn tank 3.
Refrigerant inlet-EXPORT CARTON 2 comprises the refrigerant inlet header portion 5 and the refrigerant outlet collector portion 6 that is positioned at towards a side (with respect to the upstream side of airflow direction) at rear portion that is positioned at towards a side (with respect to the downstream of airflow direction) of front portion.Collector portion 5 and 6 is in one via jockey, hereinafter this jockey will be described.The refrigerant inlet pipe 7 of aluminum is connected to the refrigerant inlet header portion 5 of refrigerant inlet-EXPORT CARTON 2.The refrigerant outlet pipe 8 of aluminum is connected to refrigerant outlet collector portion 6.
Refrigerant turn tank 3 comprises that the cold-producing medium that is positioned at towards a side of front portion flows into intermediate header 9 (the first intermediate header portions) of portion and is positioned at 11 (second intermediate header portions) of cold-producing medium outflow intermediate header portion towards a side at rear portion.Connecting portion 10 links together collector portion 9 and 11 to be integral.Collector portion 9 and 11 and connecting portion 10 define a drainage groove 20 (see figure 3)s.
Heat exchange core portion 4 is configured such that set of heat exchange tubes 13 is arranged to many rows, is two rows at this along fore-and-aft direction, each set of heat exchange tubes 13 comprises a plurality of heat exchanger tubes 12 that be arranged in parallel along left and right directions apart predetermined space, corrugated fin 14 is arranged on the air of the correspondence between the adjacent heat exchange tubes 12 of set of heat exchange tubes 13 by in the gap and the Far Left and rightmost heat exchanger tube 12 outsides that are arranged on set of heat exchange tubes 13, and soldering is on the heat exchanger tube 12 of correspondence.The side plate 15 of aluminum is arranged on the Far Left and rightmost corrugated fin 14 outsides and soldering on the corrugated fin 14 of correspondence.The top and bottom of the heat exchanger tube 12 of anterior set of heat exchange tubes 13 are connected respectively to refrigerant inlet header portion 5 and cold-producing medium flows into intermediate header portion 9, thereby heat exchanger tube 12 forms flow of refrigerant portion forward.The top and bottom of the heat exchanger tube 12 of rear heat exchange tubes group 13 are connected respectively to refrigerant outlet collector portion 6 and cold-producing medium flows out intermediate header portion 11, thereby heat exchanger tube 12 forms the flow of refrigerant portion that returns.
Shown in Fig. 3 and 4, refrigerant inlet-EXPORT CARTON 2 is formed by the aluminium soldering sheet material that all has the brazing material layer in its opposite flank each, and comprises tabular and first parts 16 that be connected with all heat exchanger tubes 12; Form and cover second parts 17 on the top of first parts 16 by the exposed aluminium extrudate; And the closure member 18 and 19 that forms by the aluminium soldering sheet material that all has the brazing material layer in its opposite flank each, this closure member is attached to the opposite end of first and second parts 16 and 17 to seal left end and the right-end openings by first and second parts 16 and 17 hollow bodies that form thus.Aluminum and fish plate (joint plate) 21 solderings that prolong along fore-and-aft direction are on the outer surface of right-hand side closure member 19, simultaneously towards each end of refrigerant inlet header portion 5 and refrigerant outlet collector portion 6.Refrigerant inlet pipe 7 and refrigerant outlet pipe 8 are connected on the fish plate 21.
First parts 16 have front and rear sweep 22, and the central area of this sweep all has the arcuate cross-section of giving prominence to and having small curve downwards.In sweep 22, form a plurality of pipe jacks 23 that prolong along fore-and-aft direction along the left and right directions predetermined space ground that is separated by.Pipe jack 23 in the front curvature part 22 is identical with the position of pipe jack on left and right directions in the rear portion sweep 22.Forwardly be integrally formed into upstanding wall 22a on the whole length of each in the trailing edge of the leading edge of sweep 22 and rear portion sweep 22 with it.Be formed with a flat 24 between the sweep 22 at first parts 16, this flat is with acting on the device that refrigerant inlet header portion 5 and refrigerant outlet collector portion 6 are linked together.In this flat 24, be formed with a plurality of through holes 25 along the left and right directions predetermined space ground that is separated by.
Second parts 17 have the cross section that is similar to alphabetical m, and it is under shed, and comprise the front and rear wall 26 that extends along left and right directions; Be arranged on the partition wall 27 (separating device) of the central area between the front and rear wall 26, this partition wall extends along left and right directions, and the inside of refrigerant inlet-EXPORT CARTON 2 is divided into front space and back space; And two be roughly arc connecting wall 28, and this connecting wall projects upwards and connect with being integral the upper end of partition wall 27, the upper end of front and rear wall 26.Partition wall 27 usefulness act on the device that refrigerant inlet header portion 5 and refrigerant outlet collector portion 6 are linked together.Resistance plate 29 connects the end portion of rear wall 26 of second parts 17 and the end portion of partition wall 27 with being integral on its whole length, this resistance plate is divided into upper space and lower space with the inside that acts on refrigerant outlet collector portion 6.Be separated by the predetermined space ground a plurality of cold-producing mediums of formation by hole 31A and 31B along left and right directions in the Background Region of removing its left end portion and right end portion of resistance plate 29, this cold-producing medium shows as through-hole form by the hole and prolongs along left and right directions.The outstanding lower end that surpasses front and rear wall 26 of the lower ends downward of partition wall 27.Left and right directions is integrally formed into a plurality of protuberance 27a with being separated by predetermined space in the upper edge, lower surface of partition wall 27, and this protuberance forms in the through hole 25 of the correspondence of giving prominence to and being assemblied in first parts 16 downwards.Protuberance 27a forms by the predetermined portions of excision partition wall 27.
Left-hand side closure member 18 comprises the front portion lid 18a of the left end opening that is used to seal refrigerant inlet header portion 5 with being integral and is used to seal the rear portion lid 18b of the left end opening of refrigerant outlet collector portion 6.Forwardly cover and be integrally formed into the ledge to the right 39 in refrigerant inlet header portion 5 to be assembled on the 18a.Equally, be integrally formed on the rear portion lid 18b to be assembled on the top that is positioned at the space 6a above the resistance plate 29 of refrigerant outlet collector portion 6, to the right ledge 41 and to be assembled in the bottom that is positioned at the space 6b below the resistance plate 29 of refrigerant outlet collector portion 6, ledge 42 to the right, thereby this ledge 41 and 42 is vertically separated mutually.Be integrally formed into the outstanding paw 43 that engages to the right with in arcuate section that extends between the cephalolateral margin of side closure member 18 leftward and the apical margin and the arcuate section that extends between the posterior lateral margin of side closure member 18 and the apical margin leftward each.In addition, with the front and rear of the lower edge of left-hand side closure member 18 in each be integrally formed into the outstanding paw 44 that engages to the right.
Right-hand side closure member 19 comprises the front portion lid 19a of the right-end openings that is used to seal refrigerant inlet header portion 5 with being integral and is used to seal the rear portion lid 19b of the right-end openings of refrigerant outlet collector portion 6.Forwardly cover and be integrally formed into the ledge left 32 in refrigerant inlet header portion 5 to be assembled on the 19a.Equally, be integrally formed on the rear portion lid 19b to be assembled on the top that is positioned at the space 6a above the resistance plate 29 of refrigerant outlet collector portion 6, left ledge 33 and to be assembled in the bottom that is positioned at the space 6b below the resistance plate 29 of refrigerant outlet collector portion 6, ledge 34 left, make ledge 33 and 34 vertically separate mutually.Be integrally formed into the outstanding paw 35 that engages left with in arcuate section that extends between the cephalolateral margin of right-hand side closure member 19 and the apical margin and the arcuate section that between the posterior lateral margin of right-hand side closure member 19 and apical margin, extends each.In addition, with the front and rear of the lower edge of right-hand side closure member 19 in each be integrally formed into the outstanding paw 36 that engages left.In the diapire of the ledge left 32 of the front portion of right-hand side closure member 19 lid 19a, form refrigerant inlet 37.On the top of the rear portion of right-hand side closure member 19 lid 19b, form refrigerant outlet 38 in the diapire of ledge 33 left.
In the closure member 18 and 19 each is tabular, and it is shaped as two and is roughly arc part and links together in the centre position along fore-and-aft direction with being integral, so that consistent with the corresponding left end and the right-hand member of the upper surface of second parts 17 of refrigerant inlet-EXPORT CARTON 2.The middle part of the lower edge of each in closure member 18 and 19 (with respect to fore-and-aft direction) forms flat so that consistent with the flat 24 of first parts 16.
Front walls 26, partition wall 27 and the anterior connecting wall 28 of the front curvature part 22 of first parts 16 and flat 24, second parts 17 and the front portion of left-hand side and right-hand side closure member 18 and 19 lid 18a and 19a form refrigerant inlet header portion 5.Rear wall 26, partition wall 27 and the rear portion connecting wall 28 of the rear portion sweep 22 of first parts 16 and flat 24, second parts 17 and the rear portion of left-hand side and right-hand side closure member 18 and 19 lid 18b and 19b form refrigerant outlet collector portion 6.Refrigerant inlet header portion 5 and refrigerant outlet collector portion 6 combine via the middle part along fore-and-aft direction of flat 24, partition wall 27 and closure member 18 and 19.
Fish plate 21 comprise the weak point that is communicated with the refrigerant inlet 37 of right-hand side closure member 19, the cylindricality cold-producing medium flow into port 45 and the weak point that is communicated with the refrigerant outlet 38 of right-hand side closure member 19, cylindricality cold-producing medium outflow port 46.Flow into upper limb between port 45 and the cold-producing medium outflow port 46 and each the part place in the lower edge part forms outstanding bending part 47 left at fish plate 21 at cold-producing medium.Two of upper limb that top bending part 47 is assemblied in right-hand side closure member 19 are roughly between the arc part, and are assemblied between two connecting walls 28 of second parts 17.Bottom bending part 47 is assemblied on the flat and the flat 24 of first parts 16 at (with respect to fore-and-aft direction) middle part of lower edge of right-hand side closure member 19.Be integrally formed into the outstanding paw 48 that engages left with the leading section of the lower edge of fish plate 21 and in the rearward end each.Engage the lower edge that paw 48 is assembled to right-hand side closure member 19.The cold-producing medium that the part that the diameter that forms in an end of refrigerant inlet pipe 7 reduces is inserted in and brazed on fish plate 21 flows on the port 45.Similarly, the part that reduces of the diameter that forms in end of refrigerant outlet pipe 8 is inserted in and brazed on the cold-producing medium outflow port 46 of fish plate 21.Although not shown, an expansion valve connector can be attached to the other end of refrigerant inlet and outlet 78, simultaneously towards the end of managing 7 and 8.
First and second parts 16 and 17 of refrigerant inlet-EXPORT CARTON 2, closure member 18 with 19 and fish plate 21 as follows soldering be in the same place.In the assembling of first and second parts 16 and 17, the protuberance 27a of second parts 17 inserts the through hole 25 of the correspondence of first parts 16, carries out crimping (crimping) then.As a result, the upper end of the front and rear upstanding wall 22a of first parts 16 is assembled to the bottom of correspondence of the front and rear wall 26 of second parts 17.Under the condition of setting up like this, first and second parts 16 and 17 utilize the brazing material layer soldering of first parts 16 to be in the same place.In closure member 18 and 19 be connected, anterior ledge 39 and 32 is assembled to that limit and be positioned at the space in partition wall 27 the place aheads by first and second parts 16 and 17; Rear portion, top ledge 41 and 33 are assemblied in that limit and be positioned at partition wall 27 rears and the space above resistance plate 29 by first and second parts 16 and 17; Rear portion, bottom ledge 42 and 34 are assemblied in that limit and be positioned at partition wall 27 rears and the space below resistance plate 29 by first and second parts 16 and 17; Upper bond paw 43 and 35 is assembled to the connecting wall 28 of second parts 17; And lower bond paw 44 and 36 is assembled to the sweep 22 of first parts 16.Under the condition of setting up like this, closure member 18 and 19 utilizes its brazing material layer to be soldered on first and second parts 16 and 17.In the connection of fish plate 21, bending part 47 is assembled on the right-hand side closure member 19 and second parts 17, and joint paw 48 is assembled on the right-hand side closure member 19.Under the condition of setting up like this, fish plate 21 utilizes the brazing material layer soldering of right-hand side closure member 19 on right-hand side closure member 19.
Thereby form refrigerant inlet-EXPORT CARTON 2.Resistance plate 29 is divided into space, upper and lower 6a and 6b with the inside of refrigerant outlet collector portion 6. Space 6a and 6b are interconnected by hole 31A and 31B by cold-producing medium.The refrigerant outlet 38 of right-hand side closure member 19 is communicated with the upper space 6a of refrigerant outlet collector portion 6.
Shown in Fig. 3 and the 5-9, refrigerant turn tank 3 is formed by the aluminium soldering sheet material that all has brazing material in its opposite flank each, and comprises tabular and first parts 50 that be connected with all heat exchanger tubes 12; Form and cover second parts 51 of the downside of first parts 50 by the exposed aluminium extrudate; Closure member 52 and 53, this closure member is formed by the aluminium soldering sheet material that all has the brazing material layer in its opposite flank each, and seals the left end and the right-end openings of first and second parts 50 and 51; Form, prolong and be attached to the auxiliary drain bar 54 of connecting portion 10 along left and right directions by the exposed material of aluminium; And communication means 55, this communication means is formed, is prolonged along fore-and-aft direction by the exposed material of aluminium, and with the mode soldering of the end that flows into intermediate header portion 9 and cold-producing medium outflow intermediate header portion 11 towards cold-producing medium on the outer surface of right-hand side closure member 52.Cold-producing medium flows into intermediate header portion 9 and cold-producing medium outflow intermediate header portion 11 is interconnected via the right part of communication means 55 at them.
In cold-producing medium inflow intermediate header portion 9 and the cold-producing medium outflow intermediate header portion 11 each all has end face, leading flank, trailing flank and bottom surface.The inside part and the part the Outboard Sections with respect to fore-and-aft direction except them of collector portion 9 and 11 end face are used separately as horizontal plane 9a and 11a.The inside part with respect to fore-and-aft direction of collector portion 9 and 11 end face is used separately as first to lower part 9b and 11b, and it is along straight line downwards and the face that tilts inwardly with respect to fore-and-aft direction.First to lower part 9b and the 11b front and rear side surface as drainage groove 20.The front and rear side surface of drainage groove 20 upwards and along fore-and-aft direction opens.Preferably, first to lower part 9b and 11b with respect to the horizontal plane to become 45 degree or bigger angle downward-sloping.The front and rear side surface of drainage groove 20 be collector portion 9 and 11 first to lower part 9b and 11b, as long as they upwards and along fore-and-aft direction open, might not tilt along straight line, they are also flexible.The Outboard Sections with respect to fore-and-aft direction of collector portion 9 and 11 end face is used separately as second to lower part 9c and 11c, and it is downwards and with respect to the face of fore-and-aft direction towards outer incline along straight line.Preferably, second becomes 45 degree or bigger angle ground downward-sloping to lower part 9c and 11c with horizontal plane.Collector portion 9 and 11 front and rear outer surface be connected to corresponding end face second to lower part 9c and 11c.
First parts 50 comprise: form first collector formation part 56 that cold-producing medium flows into the top part of intermediate header portion 9; Form second collector formation part 57 that cold-producing medium flows out the top part of intermediate header portion 11; With connecting wall 58, this connecting wall connects collector and forms part 56 and 57 and form connecting portion 10.First collector forms part 56 and comprises: the top flat wall 56a of level; The first inclined wall 56b, this first inclined wall are integrally formed therewith on the whole length of the trailing edge of roof 56a and backward with downward-sloping; The second inclined wall 56c, this second inclined wall are integrally formed therewith on the whole length of the leading edge of roof 56a and forward with downward-sloping; And vertical wall 56d, this vertical wall is integrally formed into it on the whole length of the leading edge of the second inclined wall 56c.Second collector forms part 57 and comprises: the top flat wall 57a of level; The first inclined wall 57b, this first inclined wall are integrally formed therewith on the whole length of the leading edge of roof 57a and forward with downward-sloping; The second inclined wall 57c, this second inclined wall are integrally formed therewith on the whole length of the trailing edge of roof 57a and backward with downward-sloping; And vertical wall 57d, this vertical wall is integrally formed into it on the whole length of the trailing edge of the second inclined wall 57c.Connecting wall 58 connects first collector with being integral and forms the lower edge of the first inclined wall 56b of part 56 and the lower edge that second collector forms the first inclined wall 57b of part 57.The bottom face that collector forms the vertical wall 56d of part 56 and 57 and 57d respectively with respect to fore-and-aft direction downwards and slope inwardly.Outboard Sections on each bottom surface forms step portion 69 partly, hereinafter will be explained.The upper surface that first collector forms the roof 56a of part 56 flows into the end face of intermediate header portion 9 promptly as horizontal plane 9a as cold-producing medium; The outer surface of inclined wall 56b and 56c is used as to lower part 9b and 9c; And the outer surface of vertical wall 56c flows into the top part of the front surface of intermediate header portion 9 as cold-producing medium.The upper surface that second collector forms the roof 57a of part 57 flows out the end face of intermediate header portion 11 promptly as horizontal plane 11a as cold-producing medium; The upper surface of inclined wall 57b and 57c is used as to lower part 11b and 11c; And the outer surface of vertical wall 57d flows out the top part of the rear surface of intermediate header portion 11 as cold-producing medium.
In the collector of first parts 50 forms part 56 and 57 along the left and right directions a plurality of pipe jacks 59 of predetermined space ground formation of being separated by along the fore-and-aft direction prolongation.The pipe jack 59 that collector forms part 56 is identical along the position of left and right directions with the pipe jack that collector forms part 57.Pipe jack 59 be positioned at towards the end sections of connecting portion 10 1 sides, promptly first collector leading section that forms the pipe jack 59 of the rearward end of pipe jack 59 of part 56 and second collector formation part 57 is positioned at first inclined wall 56b and the 57b respectively.Therefore, manage the side surface that is positioned at drainage groove 20 towards the end of connecting portion 10 1 sides that is positioned at of jack 59.Pipe jack 59 with respect to the outer end of fore-and-aft direction, promptly first collector rearward end that forms the pipe jack 59 of the leading section of pipe jack 59 of part 56 and second collector formation part 57 is positioned at second inclined wall 56c and the 57c respectively.Therefore, second of the leading section of pipe jack 59 and end face that rearward end is positioned at collector portion 9 and 11 to lower part 9c and 11c.
Form among the roof 56a and 57a and inclined wall 56b, 56c, 57b and 57c of part 56 and 57 at the collector of first parts 50, the part on their left side that is positioned at each pipe jack 59 and right side is as being positioned at left side of each pipe jack 59 and the sloping portion 61 on right side defines recess 62 (see figure 10)s downwards and towards the sloping portion 6L that pipe jack 59 tilts.Form at the collector of first parts 50 and be formed on the outer surface of the second inclined wall 56c of part 56 and 57 and 57c and vertical wall 56d and 57d, the leading section and the rearward end connection of this rhone and corresponding pipe jack 59 from refrigerant turn tank 3 rhones 63 of discharging condensed waters downwards.Along with the distance apart from corresponding pipe jack 59 increases, extend downwards the bottom of each rhone 63.Being positioned at of each rhone 63 promptly be positioned on the second inclined wall 56c or the 57c second on lower part 9c or 11c a part the bottom with respect to the horizontal plane downwards and towards the front portion or the rear portion tilt along straight line.Preferably, each rhone 63 be positioned at second the bottom of a part on lower part 9c or 11c with respect to the horizontal plane become 45 degree or more wide-angle ground tilt.The lower end that is positioned at the part on vertical wall 56d or the 57d of each rhone 63 is at the bottom face opening of vertical wall 56d or 57d.
In the connecting wall 58 of first parts 50, form a plurality of drainage holes 64 that prolong along left and right directions along the left and right directions predetermined space ground that is separated by.In addition, form a plurality of fixed vias 65 along the left and right directions predetermined space ground that is separated by in the connecting wall 58 of first parts 50, this fixed via departs from this drainage hole 64.
Second parts 51 comprise: form first collector formation part 66 that cold-producing medium flows into the bottom part of intermediate header portion 9; Form second collector formation part 67 that cold-producing medium flows out the bottom part of intermediate header portion 11; With connecting wall 68, this connecting wall forms part 66 and 67 with collector and links together, thereby and soldering on the connecting wall 58 of first parts 50 to form connecting portion 10.First collector forms part 66 and comprises vertical front and rear wall 66a and diapire 66b, and this diapire connects the bottom of this front and rear wall 66a with being integral, give prominence to downwards and have and be roughly arc cross section.Second collector forms part 67 and comprises: vertical front and rear wall 67a; Diapire 67b, this diapire connect the bottom of this front and rear wall 67a, outstanding and have and be roughly arc cross section downwards with being integral; And the horizontal flow-dividing control wall 67c (flow-dividing control device) that connects the upper end of front and rear wall 67a with being integral.Connecting wall 68 connects first collector with being integral and forms the upper end of rear wall 66a of part 66 and the upper end that second collector forms the front walls 67a of part 67.The outer surface of the rear wall 67a that the outer surface of the front walls 66a of first collector formation part 66 and second collector form part 67 is inside from the outer surface of the outer surface of the vertical wall 56d of first collector formation part 56 of first parts 50 and the vertical wall 57d that second collector forms part 57 with respect to fore-and-aft direction respectively.Therefore, the front and rear wall 66a of the vertical wall 56d of first parts 50 and 57d and second parts 51 and each in the joint portion between the 67a are provided with step portion 69; The outer surface of vertical wall 56d and 57d is outside from the outer surface of anterior and rear wall 66a and 67a with respect to fore-and-aft direction via the step portion 69 of correspondence respectively; And the whole bottom of each rhone 63 is in step portion 69 place's opening (see figure 3)s of correspondence.The outer surface of the upper edge portion of the front walls 66a of first collector formation part 66 is concordant with the basal surface that is positioned at the part on the vertical wall 56d of rhone 63, and the outer surface of the upper edge portion of the rear wall 67a of second collector formation part 67 is concordant with the basal surface that is positioned at the part on the vertical wall 57d of rhone 63.The outer surface that first collector forms the front walls 66a of part 66 is used as the bottom part that cold-producing medium flows into the front surface of intermediate header portion 9.The outer surface that second collector forms the rear wall 67a of part 67 is used as the bottom part that cold-producing medium flows out the rear surface of intermediate header portion 11.
In forming the Background Region of flow-dividing control wall 67c of part 67, second collector of second parts 51 passes through hole 71 along the left and right directions circular cold-producing medium that predetermined space ground forms a plurality of through-hole forms of being separated by.Two adjacent circular cold-producing mediums by the distance between the hole 71 along with the right-hand member that forms part 67 apart from second collector is that cold-producing medium flows into the distance that intermediate header portion 9 and cold-producing medium flow out the connected component between the intermediate header portion 11 and increases and increase gradually.It should be noted that two adjacent circular cold-producing mediums can be constant by the distance between the hole 71.In the connecting wall 68 of second parts 51, be formed with a plurality of drainage holes 72 that prolong along left and right directions that align with the corresponding drainage hole 64 of first parts 50.In addition, in connecting wall 68, form a plurality of fixed vias 73 that align with the corresponding fixed via 65 of first parts 50.
Form otch 74 in auxiliary drain bar 54, this otch extends and corresponding to the drainage hole 64 and 72 of first and second parts 50 and 51 from the upper limb of auxiliary drain bar.The width that the opening portion of otch 74 is measured along left and right directions equals drainage hole 64 and 72 along the left and right directions length measured.Auxiliary rhone 75 is formed as follows on the front and rear surface of auxiliary drain bar 54: auxiliary rhone 75 vertically extends and is communicated to the bottom of corresponding otch 74; And the bottom of auxiliary rhone is at the bottom surface opening of auxiliary drain bar 54.Upper edge at auxiliary drain bar 54 forms protuberance 76, and this protuberance aligns with the corresponding fixed via 65 and 73 of first and second parts 50 and 51, and projects upwards so that insert corresponding fixed via 65 and 73.
Right-hand side closure member 52 comprise with being integral be used to seal cold-producing medium flow into intermediate header portion 9 right-end openings front portion lid 52a and be used to seal the rear portion lid 52b that cold-producing medium flows out the right-end openings of intermediate header portion 11.Forwardly cover and be integrally formed into the ledge left 77 in cold-producing medium flows into intermediate header portion 9 to be assembled on the 52a.Equally, to be assembledly flow out the top that is positioned at the space 11A above the flow-dividing control wall 67c of intermediate header portion 11, ledge 78 and to be assembledly flow out the bottom that is positioned at the space 11B below the flow-dividing control wall 67c of intermediate header portion 11, ledge 79 left left being integrally formed on the rear portion lid 52b, make ledge 78 and 79 vertically separate at cold-producing medium at cold-producing medium.The arcuate section that between the cephalolateral margin of right-hand side closure member 52 and root edge, extends, the arcuate section that extends between the posterior lateral margin of right-hand side closure member 52 and the root edge, and the front and rear of the upper limb of right-hand side closure member 52 forms outstanding joint paw 81 left.In addition, form outstanding joint paw 82 to the right at the middle part (with respect to fore-and-aft direction) of the upper limb and the lower edge of right-hand side closure member 52.In the diapire of the ledge left 77 of the front portion of right-hand side closure member 52 lid 52a, be formed for making cold-producing medium to flow out the cold-producing medium that cold-producing medium flows into intermediate header portion 9 and flow out opening 83.Similarly, in the bottom of the rear portion of right-hand side closure member 52 lid 52b, be formed in the diapire of ledge 79 making cold-producing medium to flow into the cold-producing medium inlet opening 84 that is positioned at the part below the flow-dividing control wall 67c that cold-producing medium flows out intermediate header portion 11 left.
In the bottom of the rear portion lid 52b that is positioned at right-hand side closure member 52, the bottom part of the peripheral part of the cold-producing medium inlet opening 84 at ledge 79 places forms targeting part 80 left, make targeting part 80 extend, be inclined upwardly simultaneously or crooked (being bent upwards in the present embodiment) towards the inside (towards a left side) that cold-producing medium flows out intermediate header portion 11.The cold-producing medium of the part that is positioned at flow-dividing control wall 67c below of targeting part 80 guiding inflow cold-producing mediums outflow intermediate header portions 11 upwards (towards flow-dividing control wall 67c) flows.
Left-hand side closure member 53 comprise with being integral be used to seal cold-producing medium flow into intermediate header portion 9 the left end opening front portion lid 53a and be used to seal the rear portion lid 53b that cold-producing medium flows out the left end opening of intermediate header portion 11.Forwardly cover and be integrally formed into the ledge to the right 85 in cold-producing medium flows into intermediate header portion 9 to be assembled on the 53a.Equally, to be assembledly flow out the top that is positioned at the space 11A above the flow-dividing control wall 67c of intermediate header portion 11, ledge 86 and to be assembledly flow out the bottom that is positioned at the space 11B below the flow-dividing control wall 67c of intermediate header portion 11, ledge 87 to the right to the right being integrally formed on the rear portion lid 53b, make ledge 86 and 87 vertically separate at cold-producing medium at cold-producing medium.The arcuate section that extends between the cephalolateral margin of side closure member 53 and the lower edge leftward, the arcuate section that extends between the posterior lateral margin of left-hand side closure member 53 and the lower edge, and the front and rear of the upper limb of left-hand side closure member 53 forms outstanding joint paw 88 to the right.
The exposed section bar of communication means 55 usefulness aluminium forms by pressure processing, and is presenting the plate-like form identical with right-hand side closure member 52 when the right side is seen.The peripheral part soldering of communication means 55 is on the outer surface of right-hand side closure member 52.Be communicated with so that flow out to set up between opening 83 and the cold-producing medium inlet opening 84 forming outside projection 89 on the communication means 55 at the cold-producing medium of two through-hole forms of right-hand side closure member 52.Outwards the communication passage 91 of setting up connection between opening 83 and the cold-producing medium inlet opening 84 is flowed out with the cold-producing medium that acts at right-hand side closure member 52 in the inside of projection 89.On the upper limb of communication means 55 and in the lower edge each, form otch 92 in center with respect to fore-and-aft direction.The joint paw 82 of right-hand side closure member 52 is assemblied in the corresponding otch 92.
In the assembling of refrigerant turn tank 3, first and second parts 50 and 51, auxiliary drain bar 54, closure member 52 with 53 and communication means 55 as follows soldering be in the same place.In the assembling of first parts 50 and second parts 51, connecting wall 58 and 68 is in contact with one another, thereby drainage hole 64 and 72 aligns mutually and fixed via 65 and 73 aligns mutually; The bottom that collector forms the vertical wall 56d of part 56 and 57 and 57d and first collector form the corresponding top joint of the front walls 66a of part 66 and the rear wall 67a that second collector forms part 67; And protuberance 76 insertion parts 50 of auxiliary drain bar 54 and 51 fixed via 65 and 73 also carry out crimping then, thereby parts 50 and 51 tacks are in the same place.Under the condition of setting up like this, the brazing material layer that utilizes first parts 50 with these parts solderings together.Auxiliary drain bar 54 utilizes the brazing material layer soldering of first parts 50 on the connecting wall 58 and 68 of parts 50 and 51.In closure member 52 and 53 be connected, the ledge 77 and 85 of anterior lid 52a and 53a is assemblied in first collector by parts 50 and 51 and forms in the space that part 56 and 66 limits; The top ledge 78 and 86 of rear portion lid 52b and 53b is assemblied in second collector by parts 50 and 51 and forms in that limit and the upper space above flow-dividing control wall 67c of part 57 and 67; The bottom ledge 79 and 87 of rear portion lid 52b and 53b is assemblied in second collector by parts 50 and 51 and forms in that limit and the lower space below flow-dividing control wall 67c of part 57 and 67; Upper bond paw 81 and 88 is assemblied on first parts 50; Lower bond paw 81 and 88 is assemblied on second parts 51.Under the condition of setting up like this, closure member 52 and 53 utilizes its brazing material layer soldering on first and second parts 50 and 51.In the connection of communication means 55, communication means 55 engages with right-hand side closure member 52, makes the joint paw 82 of right-hand side closure member 52 be assemblied in the corresponding otch 92.Under the condition of setting up like this, the brazing material layer that utilizes right-hand side closure member 52 with communication means 55 solderings on right-hand side closure member 52.
Thereby form refrigerant turn tank 3.The parts 50 and 51 first collector form part 56 and 66 and define cold-producing medium and flow into intermediate header portion 9.Second collector forms part 57 and 67 and defines cold-producing medium outflow intermediate header portion 11.Flow-dividing control wall 67c is divided into space, upper and lower 11A and 11B with the inside that cold-producing medium flows out intermediate header portion 11.Space 11A and 11B are interconnected by hole 71 by circular cold-producing medium.Upper space 11A is first space that heat exchanger tube 12 is faced, and lower space 11B flows into second space that intermediate header portion 9 is communicated with cold-producing medium.The rear portion lid 52b of communication passage 91 in the outside projection 89 of opening 83, communication means 55 and right-hand side closure member 52 is flowed out in the inside that cold-producing medium flows into intermediate header portion 9 via the cold-producing medium of the front portion lid 52a of right-hand side closure member 52 cold-producing medium inlet opening 84 is communicated with the lower space 11B of cold-producing medium outflow intermediate header portion 11.Parts 50 and 51 connecting wall 58 and 68 define connecting portion 10.Cold-producing medium flows into first of intermediate header portion 9 and flows out first of intermediate header portion 11 to lower part 9b, cold-producing medium and limit drainage grooves 20 to lower part 11b and connecting portion 10.
In the heat exchanger tube 12 each is made by the exposed aluminium extrudate, and presents the flat form that has the broad width along fore-and-aft direction.In heat exchanger tube 12, form a plurality of coolant channel 12a abreast along its longitudinal extension.The outer surface of the front-end and back-end wall of heat exchanger tube 12 has arc horizontal cross-section, thus the outwards outstanding (see figure 6) in its middle part.Anterior heat exchanger tube 12 is arranged to along the position of left and right directions identical with rear heat exchange tubes 12.The pipe jack 23 of correspondence of first parts 16 of refrigerant inlet-EXPORT CARTON 2 is inserted in the upper end of heat exchanger tube 12, and the brazing material layer soldering that utilizes first parts 16 is on first parts 16.The pipe jack 59 of correspondence of first parts 50 of refrigerant turn tank 3 is inserted in the bottom of heat exchanger tube 12, and the brazing material layer soldering that utilizes first parts 50 is on first parts 50.Anterior heat exchanger tube 12 flows into intermediate header portion 9 with refrigerant inlet header portion 5 and cold-producing medium and is communicated with.Rear heat exchange tubes 12 flows out intermediate header portion 11 with refrigerant outlet collector portion 6 and cold-producing medium and is communicated with.
Preferably, promptly to manage height h be that 0.75mm is to the 1.5mm (see figure 10) to the thickness measured along left and right directions of heat exchanger tube 12; The width that heat exchanger tube 12 is measured along fore-and-aft direction is that 12mm is to 18mm; The wall thickness of heat exchanger tube 12 is that 0.175mm is to 0.275mm; With the thickness of coolant channel 12a partition wall spaced apart from each other is that 0.175mm is to 0.275mm; The spacing of partition wall is that 0.5mm is to 3.0mm; And the radius of curvature that the outer surface of front bulkhead and aft bulkhead is measured on its outer surface is that 0.35mm is to 0.75mm.
Replace using the heat exchanger tube 12 that is formed by the aluminium extrudate, heat exchanger tube to be used can form inner fins and insert the seam welded tube (seam welded pipe) of aluminum so that form a plurality of coolant channels therein.Alternatively, flat tube to be used can be formed as follows.The aluminium soldering sheet material that all has the brazing material layer in its opposite flank each is rolled technology so that form such plate, and promptly this plate comprises: two flat wall that link together via the coupling part form parts; Under the protrusion condition with corresponding flat wall form part they with this coupling part opposed side edges on the sidewall that forms form part; Form parts with a plurality of partition walls, this partition wall forms part and forms with flat wall that part is integrally formed into and it is outstanding to form part from this flat wall, and along the width that flat wall the forms part predetermined space ground setting of being separated by.Zhi Bei plate curves hair clip shape in the coupling part so that sidewall formation part is abutted against soldering then mutually like this.Partition wall forms part and becomes partition wall.
In the corrugated fin 14 each is used in the aluminium soldering sheet material that has the brazing material layer on its apparent surface and forms waveform.Corrugated fin 14 comprises crest part 14a, trough part 14b and horizontal flat coupling part 14c, each this coupling part (see figure 10) that all crest part 14a and trough part 14b linked together.Form along fore-and-aft direction a plurality of grids (louver) arranged side by side at coupling part 14c.Constitute the front and rear heat exchanger tube 12 shared corrugated fin 14 of flow of refrigerant parts 13.The width that corrugated fin 14 is measured along fore-and-aft direction is substantially equal to the span between the trailing edge of the leading edge of anterior heat exchanger tube 12 and rear heat exchange tubes 12.The crest part 14a of corrugated fin 14 and trough part 14b soldering forwardly with rear heat exchange tubes 12 on.
The fin height H of corrugated fin 14 is the distances straight between crest part 14a and the trough part 14b.Preferably, fin height H is that 7.0mm is to 10.0mm.In addition, the spacing of fin Pf of corrugated fin 14 be between the vertical middle part of adjacent peaks part 14a or adjacent trough part 14b distance P 1/2; Be Pf=P/2.Preferably, spacing of fin Pf is that 1.3mm is to 1.7mm.Among the crest part 14a of corrugated fin 14 and the trough part 14b each includes in soldering under the surperficial contact conditions at the flat on the flat tube 12 be positioned on the opposite end of correspondence of flat and be connected to the fillet part of corresponding coupling part 14c.Preferably, the radius of curvature R of fillet part is 0.7mm or littler (see figure 10).
In the manufacturing of evaporimeter 1, it is in the same place with temporary fixed except refrigerant inlet pipe 7 and the building block assembling the refrigerant outlet pipe 8, then with all component soldering together.
Evaporimeter 1 and compressor, condenser (refrigerant cooler) constitute together be installed in vehicle for example in the automobile as the kind of refrigeration cycle of automotive air conditioning device.
In above-mentioned evaporimeter 1, as shown in figure 11, the cold-producing medium of the gas-liquid two phase refrigerant mutually by compressor, condenser and expansion valve by fish plate 21 refrigerant inlet 37 that flows into the front portion lid 19a of port 45 and right-hand side closure member 19 enters the refrigerant inlet header portion 5 of refrigerant inlet/EXPORT CARTON 2 from refrigerant inlet pipe 7.Then, the cold-producing medium shunting flows into the coolant channel 12a of the anterior heat exchanger tube 12 of anterior set of heat exchange tubes 13.
The cold-producing medium that has entered the coolant channel 12a of all anterior heat exchanger tubes 12 is downward through coolant channel 12a, and enters the cold-producing medium inflow intermediate header portion 9 of refrigerant turn tank 3.The cold-producing medium that has entered cold-producing medium inflow intermediate header portion 9 flows to the right, and the cold-producing medium outflow opening 83 of 52a is covered in the front portion of flowing through right-hand side closure member 52 then, the outside projection 89 interior communication passage 91 and the rear portions of communication means 55 are covered the cold-producing medium inlet opening 84 of 52a, thereby changed its flow direction and enter the lower space 11B that cold-producing medium flows out intermediate header portion 11.Even when the distribution (mass dryness fraction of cold-producing medium) of the temperature of the cold-producing medium that flows through anterior heat exchanger tube 12 owing to flowing out existing fault at the cold-producing medium from refrigerant inlet header portion 5 to anterior heat exchanger tube 12 under the condition of evenly shunting when becoming inhomogeneous, change its flow direction and flow into cold-producing medium refrigerant mixed when flowing out the lower space 11B of intermediate header portion 11 flowing into cold-producing medium that intermediate header portion 9 flows out from cold-producing medium, make its temperature become evenly.
The cold-producing medium that has entered the lower space 11B of cold-producing medium outflow intermediate header portion 11 flows left; Circular cold-producing medium by flow-dividing control wall 67c enters upper space 11A by hole 71; And shunting flows into the coolant channel 12a of all rear heat exchange tubes 12.At this moment, cold-producing medium is directed to part 80 guiding with mobile towards space, bottom 11B to promptly towards the upper left side, bends towards flow-dividing control wall 67c (seeing the arrow Y in Fig. 2 and 8) simultaneously.The result, being added to the adjacent two circular cold-producing mediums that form in the flow-dividing control wall 67c increases and increases gradually by the distance of the distance between the hole 71 along with the distance right-hand member, compare with the situation that targeting part 80 is not provided, the cold-producing medium that flows into upper space 11A via cold-producing medium by hole 71 becomes even along the distribution of left and right directions.Therefore, cold-producing medium more may flow into equably and be connected to the heat exchanger tube 12 that cold-producing medium flows out intermediate header portion 11.Therefore, the distribution of cold-producing medium in heat exchange core portion 4 becomes evenly probably, and the temperature of the air by heat exchange core portion 4 becomes evenly, thereby heat exchange performance improves.
Having flowed into the cold-producing medium of coolant channel 12a of heat exchanger tube 12 and the flow direction of front upwards flows on the contrary; Enter the lower space 6b of refrigerant outlet collector portion 6; And enter upper space 6a by hole 31A and 31B by the elongated cold-producing medium of resistance plate 29.Because 29 pairs of cold-producing medium streams of resistance plate provide resistance, so flow out the upper space 11A of intermediate header portion 11 from cold-producing medium even to the branch rheology of rear heat exchange tubes 12, and the shunting from refrigerant inlet header portion 5 to anterior heat exchanger tube 12 is becoming evenly to a greater extent.As a result, refrigerant flow becomes in all heat exchanger tubes 12 evenly, thereby the Temperature Distribution in whole heat exchange core portion 4 becomes evenly.
Next, enter the refrigerant outlet 38 of the rear portion lid 19a of cold-producing medium by right-hand side closure member 19 of upper space 6a of refrigerant outlet collector portion 6 and the cold-producing medium outflow port 46 of fish plate 21 and flowed out to refrigerant outlet pipe 8.In the coolant channel 12a of coolant channel 12a that flows through anterior heat exchanger tube 12 and rear heat exchange tubes 12, cold-producing medium and the direction of arrow X shown in Fig. 1 and 11 flow through the air of air by the gap and carry out heat exchange, and flow out from evaporimeter 1 with gas phase.
At this moment, especially on the surface of corrugated fin 14, generating condensed water on the heat exchanger tube 12 and on the surface of corrugated fin 14.The condensed water that is produced mainly flows towards the joint portion between the trough part 14b of the joint portion between the crest part 14a of heat exchanger tube 12 and corrugated fin 14 and heat exchanger tube 12 and corrugated fin 14 because of capillary effect.The condensed water that attracted to the coupling part between rear heat exchange tubes 12 and the corrugated fin 14 flows forward by the effect of the air in gap owing to flow through the air that forms between the heat exchanger tube adjacent one another are along left and right directions 12, discharges downwards along the front end surface of rear heat exchange tubes 12 then.Simultaneously, the condensed water that attracted to the coupling part between anterior heat exchanger tube 12 and the corrugated fin 14 flows forward by the effect of the air in gap owing to flow through the air that forms between the heat exchanger tube adjacent one another are along left and right directions 12, discharges downwards along the front end surface of anterior heat exchanger tube 12 then.
The condensed water that discharges downwards along the front end surface of rear heat exchange tubes 12 enters the drainage groove 20 of refrigerant turn tank 3.When the condensed water of collecting in the drainage groove 20 reached a certain amount of, condensed water was downward through connecting portion 10 by drainage hole 64 and 72; Side edge portions along the otch 74 of assisting drain bar 54 flows; Enter auxiliary rhone 75; In auxiliary rhone 75, flow downward; And drop onto refrigerant turn tank 3 belows downwards from the bottom end opening of auxiliary rhone 75.The condensed water that discharges downwards along the front end surface of anterior heat exchanger tube 12 enters rhone 63; In rhone 63, flow; And the bottom end opening in rhone 63 promptly drops onto refrigerant turn tank 3 belows from the opening of step portion 69.Therefore discharge the condensed water that is produced.
In the above-described embodiments, evaporator application according to the present invention is in the evaporimeter of the automotive air conditioning device that uses the chloro-fluoro-carbon kind cold-producing medium.But the present invention is not limited thereto.Evaporimeter of the present invention can be applicable to for example evaporimeter of the interior automotive air conditioning device that uses of automobile of vehicle, this automotive air conditioning device comprises compressor, gas cooler (refrigerant cooler), intermediate heat exchanger, expansion valve and evaporimeter, and uses for example CO of supercritical refrigerant 2Cold-producing medium.
In the above-described embodiments, in the refrigerant inlet header portion 5 of case 2 and 3 with cold-producing medium flows between the intermediate header portion 9 and the refrigerant outlet collector portion 6 of case 2 and 3 and cold-producing medium flow out between the intermediate header portion 11 single set of heat exchange tubes 13 is set.But the present invention is not limited thereto.Can in the refrigerant inlet header portion 5 of case 2 and 3 and cold-producing medium flows between the intermediate header portion 9 and the refrigerant outlet collector portion 6 of case 2 and 3 and cold-producing medium flow out between the intermediate header portion 11 single or two or more set of heat exchange tubes 13 are set.In the above-described embodiments, refrigerant inlet-EXPORT CARTON 2 is arranged on top, and refrigerant turn tank 3 is arranged on the bottom.But in some cases, refrigerant inlet-EXPORT CARTON 2 is arranged on bottom refrigerant turn tank 3 and is arranged on top.
In the above-described embodiments, evaporimeter 1 comprises refrigerant inlet header portion 5, refrigerant outlet collector portion 6, and cold-producing medium flows into intermediate header portion 9 and cold-producing medium flows out intermediate header portion 11.But, also can use structure rather than this structure of disclosed evaporimeter in the patent documentation 1.That is, evaporimeter 1 can comprise: half heat exchanger tube connection refrigerant inlet header portion thereon of the left side that is arranged on the upper end side and the anterior set of heat exchange tubes of heat exchanger tube; Be set in place in half heat exchanger tube of the left side of the upper end side of the heat exchanger tube of the rear side of refrigerant inlet header portion and rear heat exchange tubes group and connect thereon refrigerant outlet collector portion; The heat exchanger tube that is arranged on the lower end side of heat exchanger tube and is connected to the set of heat exchange tubes of refrigerant inlet header portion connects the first intermediate header portion thereon; Be arranged on the right side of the first intermediate header portion and the remaining heat exchanger tube connection second intermediate header portion thereon of anterior set of heat exchange tubes; Be set in place in the upper end side of the heat exchanger tube on the right side of refrigerant inlet header portion and the heat exchanger tube that is connected with the second intermediate header portion and connect thereon the 3rd intermediate header portion; Be set in place in the residue heat exchanger tube of the upper end side of the heat exchanger tube of the rear side of the 3rd intermediate header portion and rear heat exchange tubes group and connect thereon the 4th intermediate header portion; Be set in place in the lower end side of the heat exchanger tube of the rear side of the second intermediate header portion and the heat exchanger tube that is connected with the 4th intermediate header portion and connect thereon the 5th intermediate header portion; Connect thereon the 6th intermediate header portion with being set in place in the lower end side of the heat exchanger tube in the left side of the 5th intermediate header portion and the heat exchanger tube that is connected with refrigerant outlet collector portion.The cold-producing medium that flows into refrigerant inlet header portion flows into refrigerant outlet collector portion by the heat exchanger tube and first to the 6th collector portion, flows out from refrigerant outlet collector portion then.In this evaporimeter, each place in the end, cold-producing medium inflow side of the second and the 6th intermediate header portion is provided for the targeting part that upwards guiding flows into the cold-producing medium of the second and the 6th intermediate header portion.In above-mentioned evaporimeter, in some cases, connection is set up in the end relative with refrigerant outlet collector portion with refrigerant inlet header portion at them between the 3rd intermediate header portion and the 4th intermediate header portion.In the case, cold-producing medium flows into the 4th intermediate header portion from an end of the 4th intermediate header portion.Therefore, be provided for the targeting part that upwards guiding flows into the cold-producing medium of the 4th intermediate header portion in the end, cold-producing medium inflow side of the 4th intermediate header portion.
In the above-described embodiments, be used as evaporimeter according to heat exchanger of the present invention.But the present invention is not limited thereto.
Industrial applicability
According to heat exchanger of the present invention preferably as the evaporimeter of automotive air conditioning device, this automobile sky Transferring device is the kind of refrigeration cycle that is installed on the automobile.

Claims (13)

1. heat exchanger, this heat exchanger comprises set of heat exchange tubes is arranged to many rows along fore-and-aft direction the heat exchange core portion that is configured to, each set of heat exchange tubes comprises a plurality of heat exchanger tubes of setting separated by a certain interval, wherein refrigerant inlet header portion is arranged on the first distolateral of heat exchanger tube, and the heat exchanger tube of at least one set of heat exchange tubes is connected to this refrigerant inlet header portion; Refrigerant outlet collector portion and refrigerant inlet header portion are provided with and this refrigerant outlet collector portion is set in place first distolateral in the heat exchanger tube at refrigerant inlet header portion rear along fore-and-aft direction is parallel, and the heat exchanger tube of residue set of heat exchange tubes is connected to this refrigerant outlet collector portion; The first intermediate header portion is arranged on the second distolateral of heat exchanger tube, and the heat exchanger tube that is connected to refrigerant inlet header portion is connected to this first intermediate header portion; The second intermediate header portion is set in place second distolateral in the heat exchanger tube at the first intermediate header portion rear, and the heat exchanger tube that is connected to refrigerant outlet collector portion is connected to this second intermediate header portion; In the second intermediate header portion, be provided with and have cold-producing medium by the hole and the internal vertical of the second intermediate header portion is divided into the flow-dividing control device in first and second spaces; The heat exchanger tube that is connected to the second intermediate header portion is towards first space; Between second space of the first intermediate header portion and the second intermediate header portion, realize being communicated with; Cold-producing medium flows into second space of this second intermediate header portion from the longitudinal end that is communicated with the first intermediate header portion of the second intermediate header portion; And the targeting part that the cold-producing medium that is used to guide second space of the second intermediate header portion of inflow upwards flows is arranged on the end, cold-producing medium inflow side of the second intermediate header portion.
2. heat exchanger according to claim 1 is characterized in that, forms a plurality of cold-producing mediums along the longitudinal direction of the second intermediate header portion separated by a certain intervally pass through the hole in the flow-dividing control device.
3. heat exchanger according to claim 2 is characterized in that, described cold-producing medium is formed on the rear side with respect to the middle part of fore-and-aft direction that is positioned at this flow-dividing control device in the flow-dividing control device by the hole.
4. heat exchanger according to claim 1 is characterized in that, described refrigerant inlet header portion and refrigerant outlet collector portion are arranged on the upper end side of heat exchanger tube, and the described first and second intermediate header portions are arranged on the lower end side of heat exchanger tube.
5. heat exchanger according to claim 1 is characterized in that, each in the first and second intermediate header portions all has the lid that is used to seal its opposite end; Lid at an end that is positioned at the first intermediate header portion forms cold-producing medium outflow opening; Lid at an end that is positioned at the second intermediate header portion forms the cold-producing medium inlet opening; And flow out realization connection between opening and the cold-producing medium inlet opening via communication means at cold-producing medium, thereby these two intermediate header portions are interconnected in the end of these two intermediate header portions.
6. heat exchanger according to claim 5, it is characterized in that, described targeting part is set in place in the part of peripheral part of the cold-producing medium inlet opening that forms in the lid of an end of the second intermediate header portion, makes targeting part extend towards the inside of the second intermediate header portion to be inclined upwardly simultaneously or crooked.
7. heat exchanger according to claim 6, it is characterized in that, described targeting part is bent upwards simultaneously towards the inside extension of the second intermediate header portion, and described targeting part has the arcuate section that is bent upwards simultaneously towards the inside extension of the second intermediate header portion in the cross section of the vertical plane intercepting that the longitudinal direction along the second intermediate header portion extends.
8. heat exchanger according to claim 5, it is characterized in that, the first intermediate header portion is formed with wherein that cold-producing medium flows out the lid of opening and the lid that wherein is formed with the cold-producing medium inlet opening of the second intermediate header portion is in one, and communication means is fixed on to cover and makes communication means cover extension at these two.
9. heat exchanger according to claim 1, it is characterized in that, an end in refrigerant inlet header portion is formed with refrigerant inlet, and an end that is positioned at same side in the end with forming refrigerant inlet of refrigerant outlet collector portion is formed with refrigerant outlet.
10. heat exchanger according to claim 9 is characterized in that, the inside of described refrigerant outlet collector portion is separated device and vertically is divided into first and second spaces; Heat exchanger tube is connected to refrigerant outlet collector portion with towards first space; In separating device, be formed with cold-producing medium and pass through the hole; And second space of refrigerant outlet collector portion is communicated with refrigerant outlet.
11. heat exchanger according to claim 1 is characterized in that, each heat exchanger tube all is a flat form, and is arranged so that the width of each heat exchanger tube extends along fore-and-aft direction, and pipe highly is that the thickness of each heat exchanger tube is that 0.75mm is to 1.5mm.
12. heat exchanger according to claim 1 is characterized in that, is provided with fin between adjacent heat exchange tubes; This fin is a waveform, and comprises crest part, trough part and the smooth coupling part that this crest part and trough are partly linked together; The fin height of fin be 7.0mm to 10.0mm, spacing of fin is that 1.3mm is to 1.7mm.
13. heat exchanger according to claim 12, it is characterized in that, the crest part of corrugated fin and each in the trough part comprise flat, and be positioned at flat correspondence the opposite end and be connected to the fillet part of corresponding coupling part, the radius of curvature of this fillet part is 0.7mm or littler.
CNB2006800025708A 2005-01-18 2006-01-18 Heat exchanger Expired - Fee Related CN100567876C (en)

Applications Claiming Priority (3)

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JP010213/2005 2005-01-18
JP2005010213 2005-01-18
US60/645,612 2005-01-24

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CN102384692A (en) * 2010-09-01 2012-03-21 珠海格力电器股份有限公司 Collecting pipe and heat exchanger with same
JP5903233B2 (en) * 2011-09-15 2016-04-13 株式会社ケーヒン・サーマル・テクノロジー Manufacturing method of heat storage material container
CN103363726A (en) * 2012-04-09 2013-10-23 上海精新汽车配件有限公司 Double-flow parallel stream evaporator
JP6051935B2 (en) * 2013-02-26 2016-12-27 株式会社デンソー Heat exchanger
CN103528422A (en) * 2013-11-12 2014-01-22 泰安鼎鑫冷却器有限公司 Molten aluminum chamber for high-strength radiator
JP7108177B2 (en) * 2018-03-30 2022-07-28 ダイキン工業株式会社 heat exchangers and air conditioners

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