CN101115963A - Evaporator - Google Patents

Evaporator Download PDF

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Publication number
CN101115963A
CN101115963A CNA2005800480455A CN200580048045A CN101115963A CN 101115963 A CN101115963 A CN 101115963A CN A2005800480455 A CNA2005800480455 A CN A2005800480455A CN 200580048045 A CN200580048045 A CN 200580048045A CN 101115963 A CN101115963 A CN 101115963A
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China
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refrigerant
flow
parts
evaporimeter
collector
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CNA2005800480455A
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Chinese (zh)
Inventor
东山直久
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Resonac Holdings Corp
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Showa Denko KK
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Publication of CN101115963A publication Critical patent/CN101115963A/en
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Abstract

An evaporator 1 includes a plurality of refrigerant flow members 13 and corrugate fins 14 disposed in corresponding air-passing clearances between the adjacent refrigerant flow members 13. Each refrigerant flow member 13 includes a plurality of flat tubes 12 arranged in the front-rear direction. Each corrugate fin 14 is disposed to extend across all the flat tubes 12. A vertically extending drain portion 30 is formed between the flat tubes 12 adjacent each other in the front-rear direction. At each connection portion of the corrugate fin 14, a louver group 95A composed of a plurality of louvers 94A inclining downward toward the front is provided to correspond to a front portion of each flat tube 12. At least the front-end louver 94A of the louver group 95A provided to correspond to the front portion of each flat tube 12 except for the flat tube 12 at the front end is located in the drain portion 30. This evaporator exhibits excellent drainage of condensed water and enables high work efficiency in manufacture thereof.

Description

Evaporimeter
The cross reference of related application
The application proposes according to 35U.S.C. § 111 (a), and requires the provisional application No.60/637 according to 35U.S.C. § 111 (b) submission on December 22nd, 2004,745 applying date interests according to 35U.S.C. § 119 (e) (1).
Technical field
The present invention relates to for example wait to be contained in the interior evaporimeter of automotive air conditioning device.
In the text and in the claims, Fig. 1,2 and 10 upside and downside be called as respectively " on " and D score.The downstream of air-flow (side of the arrow X indication in Fig. 1 and 10, and the right-hand side in Fig. 4) is called as " preceding ", and opposition side then is called as " back ".Fig. 2 and 10 left hand and right-hand side are called as " left side " and " right side " respectively.
Background technology
The evaporimeter that is used for automotive air conditioning device that tradition is used comprises a plurality of flow of refrigerant parts and the corrugated fin that be arranged in parallel, each fin all be arranged between the adjacent flow of refrigerant parts and soldering thereon.Each corrugated fin comprises crest part, trough part and the horizontal coupling part that crest part and trough are partly linked together.Crest part and the soldering of trough part are on the flow of refrigerant parts.In the coupling part, be formed with a plurality of grids (louver) side by side along airflow direction.
In evaporimeter, on the surface of flow of refrigerant parts and the part of the lip-deep condensed water of corrugated fin flow by Open Side Down between adjacent grid.Remaining condensed water is flowing towards the joint portion between the trough part of the joint portion between the crest part of flow of refrigerant parts and corrugated fin and flow of refrigerant parts and corrugated fin under the capillary effect.Then, remaining condensed water flows at the effect lower edge of moving air airflow direction, and flows downward along the front end of flow of refrigerant parts.But, under the bigger situation of the amount of condensed water, a large amount of condensed waters are stuck in this joint portion and can not fully discharge from front, and this can bring such problem: thus when air velocity changes suddenly condensed water scatter or condensed water by the gap between the surface tension closed lattice to reduce cooling performance.In addition, condensed water can freeze.
A kind of evaporimeter that can address the above problem has been proposed.In this evaporimeter, be arranged on corrugated fin between the adjacent flat pipe and be divided into along the be separated by fin component of a plurality of separation that predetermined space is provided with of airflow direction.Between adjacent separation fin component, be formed with a gap.On the flat tube outer surface, be formed with the rhone that is used to discharge condensed water in position corresponding to described gap.(for example, among Japanese patent application laid-open open (Kokai) No.10-141805 this evaporimeter has been proposed.)
But in the described evaporimeter of above-mentioned open file, each corrugated fin is divided into along the airflow direction corrugated fin of a plurality of separation that predetermined space is provided with of being separated by, and is formed with the gap between adjacent separation fin component.This can produce such problem in the manufacturing of evaporimeter: fit together cumbersome with the fin component that separates the flow of refrigerant parts.In addition, compare with undivided corrugated fin, corrugated fin of separating and the air that flows through between the adjacent flow of refrigerant parts are less by the heat transfer area of the air in gap, thus the problem that causes heat exchange performance to reduce.
The objective of the invention is to address the above problem, and a kind of evaporimeter of high efficiency that has extraordinary condensed water discharge performance and make its manufacturing is provided.
Summary of the invention
In order to realize above-mentioned target, the present invention comprises following pattern.
1) a kind of evaporimeter, this evaporimeter comprise that the air of being separated by a plurality of flow of refrigerant parts that predetermined space be arranged in parallel and being arranged on the correspondence between the adjacent flow of refrigerant parts along left and right directions is by the corrugated fin in the gap, wherein
Each flow of refrigerant parts comprises a plurality of refrigerant flow tube portion branches that are provided with along fore-and-aft direction; Each corrugated fin is arranged to extend across all flow of refrigerant tube portions; Between dividing, the refrigerant flow tube portion adjacent one another are along fore-and-aft direction form vertically extending water discharging part; And each corrugated fin comprises the crest part, the trough part, and the coupling part that this crest part and trough are partly linked together, each this coupling part has a plurality of grids that are provided with along fore-and-aft direction, the anterior part of grid group to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts that comprises a plurality of grids downward-sloping towards the front portion wherein is set in each coupling part of corrugated fin, and in the water discharging part of flow of refrigerant parts, has at least and be configured to the anterior partly front end grid of corresponding grid group that divides with each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end.
2) according to paragraph 1) evaporimeter, wherein form and comprise a plurality of rear portions of the second grid group to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts towards the acclivitous grid in front portion in each connecting portion office of corrugated fin.
3) according to paragraph 1) evaporimeter, wherein the fin height of each corrugated fin is that 7.0mm is that 1.3mm is to 1.8mm to 10.0mm and spacing of fin.
4) according to paragraph 1) evaporimeter, wherein each in the crest of each corrugated fin part and the trough part comprises flat and fillet part, this fillet partly be positioned at flat correspondence the opposite end and be connected to the coupling part of correspondence; And the radius of curvature of this fillet part is 0.7mm or littler.
5) according to paragraph 1) evaporimeter, wherein the pipe group is arranged to many rows along fore-and-aft direction with being separated by predetermined space, each pipe group comprises a plurality of flat tubes that be arranged in parallel along left and right directions with being separated by predetermined space; And constitute single flow of refrigerant parts along a plurality of flat tubes that fore-and-aft direction is provided with in tandem; Each flat tube is as the refrigerant flow tube portion branch; The corrugated fin soldering is on this flat tube; And be used as water discharging part along the gap between the fore-and-aft direction flat tube adjacent one another are.
6) according to paragraph 5) evaporimeter, wherein this evaporimeter also comprises: refrigerant inlet header portion, this refrigerant inlet header portion is arranged on first distolateral towards a side of front portion and flow of refrigerant parts, and the flat tube of at least one single pipe group is connected to this refrigerant inlet header portion; Refrigerant outlet collector portion, this refrigerant outlet collector portion is first distolateral and be positioned at this refrigerant inlet header portion rear the flow of refrigerant parts, and the flat tube of residue pipe group is connected to this refrigerant outlet collector portion; The first intermediate header chamber portion, this first intermediate header portion are arranged on second distolateral towards a side of front portion and flow of refrigerant parts, and the flat tube that is connected to this refrigerant inlet header portion is connected to this first intermediate header portion; And the second intermediate header portion, this second intermediate header portion is arranged on the second distolateral and be positioned at the first intermediate header portion rear of flow of refrigerant parts, the flat tube that is connected to refrigerant outlet collector portion is connected to this second intermediate header portion, and wherein the first and second intermediate header portions are interconnected.
7) according to paragraph 6) evaporimeter, wherein the first and second intermediate header portions are combined into one.
8) according to paragraph 7) evaporimeter, wherein on the upper surface of the part between the first and second intermediate header portions, be provided with the drainage groove that extends along left and right directions corresponding to the position of water discharging part.
9) according to paragraph 5) evaporimeter, wherein pipe highly be each flat tube along the thickness of left and right directions measurement is that 0.75mm is to 1.5mm.
10) according to paragraph 1) evaporimeter, wherein each flow of refrigerant parts is formed by two metallic plates that its peripheral part combines; Form a plurality of protrusion refrigerant flow tube portion branches that are provided with along fore-and-aft direction between these two metallic plates, each in the opposed end that this protrusion refrigerant flow tube portion is divided is located to connect ground formation and is protruded collector formation part; A plurality of flow of refrigerant stacking parts, part is abutted against mutually and form air between the protrusion refrigerant flow tube portion is divided passes through the gap thereby their protrusion collector forms; And corrugated fin be arranged between the adjacent flow of refrigerant parts each air by in the gap also soldering on described flow of refrigerant parts.
11) according to paragraph 10) evaporimeter, the water discharging part between wherein dividing along fore-and-aft direction refrigerant flow tube portion adjacent one another are comprises groove, this groove forms to internal strain by making two metallic plates that constitute corresponding flow of refrigerant parts.
12) according to paragraph 10) evaporimeter, wherein the height of tube portion promptly protrude the refrigerant flow tube portion branch along left and right directions measure thickness be that 0.75mm is to 1.5mm.
13) a kind of kind of refrigeration cycle that comprises compressor, condenser and evaporimeter and use the chloro-fluoro-carbon kind cold-producing medium, this evaporimeter is according to paragraph 1) to 12) in any one evaporimeter.
14) kind of refrigeration cycle a kind of wherein the installation according to paragraph 13) is as the vehicle of automotive air conditioning device.
15) a kind of supercritical refrigeration cycle, this supercritical refrigeration cycle comprises compressor, gas cooler, evaporimeter, decompressor and is used at the cold-producing medium that leaves gas cooler and leaves the intermediate heat exchanger that carries out heat exchange between the cold-producing medium of evaporimeter, and use supercritical refrigerant in this supercritical refrigeration cycle, this evaporimeter is according to paragraph 1) to 12) in any one evaporimeter.
16) kind of refrigeration cycle a kind of wherein the installation according to paragraph 15) is as the vehicle of automotive air conditioning device.
For according to paragraph 1) evaporimeter, each flow of refrigerant parts comprises a plurality of refrigerant flow tube portion branches that are provided with along fore-and-aft direction; Each corrugated fin is arranged to extend across all flow of refrigerant tube portions.Therefore, the situation of the corrugated fin with the evaporimeter described in the above-mentioned open file---wherein each corrugated fin is divided into the fin component of a plurality of separation along air-flow direction---is opposite, and the work of combination flow of refrigerant parts and corrugated fin can easily be carried out during the manufacturing of evaporimeter.In addition, can avoid corrugated fin and the heat transfer area of air by the air in gap that flow through between the adjacent flow of refrigerant parts reduces, thereby the cooling performance of the device that can avoid evaporating reduces.In addition, form the anterior part of grid group that comprises a plurality of grids downward-sloping in each connecting portion office of corrugated fin, and in the water discharging part of flow of refrigerant parts, have at least and be configured to the anterior partly front end grid of corresponding grid group that divides with each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts towards the front portion.Therefore, the condensed water that generates on the surface of flow of refrigerant parts and the surface of each corrugated fin can improved mode discharge.Promptly, on the flow of refrigerant parts and the condensed water that generates on the surface of each corrugated fin mainly because of capillary effect flows towards the joint portion between the trough part of the joint portion between the crest of flow of refrigerant parts and the corrugated fin part and flow of refrigerant parts and corrugated fin, then since by air by the air in gap and mobile forward along this joint portion.Therefore, water flows downward along the front end face that divides in the refrigerant flow tube portion of front end, and the part towards water discharging part of the front end face that divides along each remaining refrigerant flow tube portion flows.But, be not positioned at the front end grid of the corresponding grid group of the anterior part that is configured to divide under the situation of water discharging part of flow of refrigerant parts with each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end, condensed water can flow downward in by water discharging part along the part that does not wherein form grid of the coupling part of corrugated fin, and this amount at the condensed water that generates can cause drainage performance to reduce when big.On the contrary, have at least in the water discharging part of flow of refrigerant parts under the situation of the front end grid that is configured to the corresponding grid group of the anterior part of dividing with each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end, condensed water flows downward by a grid in the water discharging part of flow of refrigerant parts and the gap that is disposed immediately between another grid of its rear side.Therefore, can prevent from passing through to flow forward in the water discharging part at the condensed water that generates on the corrugated fin surface.In addition, form the anterior part of grid group that comprises a plurality of grids downward-sloping in each coupling part of corrugated fin to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts towards the front portion.Therefore, in this part, air is downwards by the gap between the grid, thereby the water in the water discharging part is guided downward, thereby can water be discharged downwards from water discharging part improved mode.Therefore, even when the amount of the condensed water that generates is big, can prevent that still drainage performance from reducing.
For paragraph 3) evaporimeter, when suppressing the air flow resistance and increasing, improve heat exchange performance, thereby between air flow resistance and heat exchange performance, set up good balance.
For paragraph 4) evaporimeter, the amount of the condensed water of assembling on the junction surface between the crest of flow of refrigerant parts and the corrugated fin part and the trough of flow of refrigerant parts and the corrugated fin junction surface between partly will increase.But, even in this case, use paragraph 1) the structure discharging that still can improve condensed water.
For paragraph 8) evaporimeter, the condensed water that drainage groove admits the part towards water discharging part of the front end face that divides along each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end to flow downward, and by a grid in the water discharging part of flow of refrigerant parts and be disposed immediately in the condensed water that the gap between another grid of its rear side flows downward.
For paragraph 9) evaporimeter, when preventing that the air flow resistance from increasing, improve heat exchange performance, thereby between air flow resistance and heat exchange performance, set up good balance.
For paragraph 12) evaporimeter, when preventing that the air flow resistance from increasing, improve heat exchange performance, thereby between air flow resistance and heat exchange performance, set up good balance.
Description of drawings
Fig. 1 is a part abridged perspective view, and it illustrates the overall structure according to the embodiment 1 of evaporimeter of the present invention;
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 decomposition diagram of the refrigerant inlet/EXPORT CARTON of the evaporimeter shown in Fig. 1;
Fig. 4 is the partial enlarged view along the section of the line A-A of Fig. 2;
Fig. 5 is the decomposition diagram of the refrigerant turn tank of evaporimeter shown in Figure 1;
Fig. 6 is the partial enlarged view along the section of the line B-B of Fig. 4;
Fig. 7 is the partial enlarged view along the section of the line C-C of Fig. 2;
Fig. 8 is the partial enlarged view of Fig. 2;
Fig. 9 is the diagram of the flow of refrigerant in the evaporimeter shown in illustrating in Fig. 1;
Figure 10 illustrates according to the part of the general structure of the embodiment 2 of evaporimeter of the present invention to omit perspective view;
Figure 11 is the horizontal sectional view that part is omitted, part is amplified of the evaporimeter shown in Figure 10;
Figure 12 is the cutaway view along the line D-D of Figure 11;
Figure 13 is the partial view along the section of the line E-E of Figure 12.
The specific embodiment
Hereinafter describe embodiments of the invention with reference to the accompanying drawings in detail.This embodiment illustrates the evaporimeter of evaporator application according to the present invention in the automotive air conditioning device that uses the chloro-fluoro-carbon kind cold-producing medium.
Embodiment 1
Fig. 1 to 9 illustrates present embodiment.
Fig. 1 and 2 illustrates the total structure of evaporimeter, and Fig. 3 to 8 illustrates the structure of the major part of evaporimeter.Fig. 9 illustrates cold-producing medium and how to flow in evaporimeter.
In Fig. 1 and 2, 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, separate mutual vertically case (2) and (3), and comprise the heat exchange core portion (4) that is arranged between case (2) and (3).
Refrigerant inlet-EXPORT CARTON (2) comprises and is positioned at towards the refrigerant inlet header portion (5) of the side (with respect to the downstream of airflow direction) of front portion and is positioned at refrigerant outlet collector portion (6) towards a side (with respect to the upstream side of airflow direction) at rear portion.The refrigerant inlet header portion (5) of refrigerant inlet-EXPORT CARTON (2) is connected with the refrigerant inlet pipe (7) of aluminum.Refrigerant outlet collector portion (6) is connected with the refrigerant outlet pipe (8) of aluminum.
Refrigerant turn tank (3) comprises that the cold-producing medium that is positioned at towards a side of front portion flows into collector portion (9) (the first intermediate header portion) and is positioned at cold-producing medium outflow collector portion (11) (the second intermediate header portion) towards a side at rear portion.A junction (10) is joined together to form collector portion (9) and (11) and is one.Collector portion (9) and (11) and connecting portion (10) limit a drainage groove (20) (see figure 4).
Heat exchange core portion (4) comprising: along left and right directions at a distance of predetermined space a plurality of flow of refrigerant parts (13) of be arrangeding in parallel; The corrugated fin of aluminum (14), this fin are arranged on air between the adjacent flow of refrigerant parts (13) by in the gap and the outside that is arranged on Far Left and rightmost flow of refrigerant parts (13), and soldering is on flow of refrigerant parts (13); And aluminum side plate (15), this side plate is arranged on the outside of Far Left and rightmost corrugated fin (14) and soldering on the corrugated fin (14) of correspondence.That each flow of refrigerant parts (13) comprises is a plurality of, be the flat tube (12) (refrigerant flow tube portion branch) that two, aluminium extrudate make in the literary composition, this flat tube is provided with along the interval that fore-and-aft direction is separated by predetermined, makes their width extend along fore-and-aft direction.The top and bottom of anterior flat tube (12) are connected respectively to refrigerant inlet header portion (5) and cold-producing medium flows into collector portion (9), and the top and bottom of rear portion flat tube (12) are connected respectively to refrigerant outlet collector portion (6) and cold-producing medium flows out collector portion (11).The gap along between fore-and-aft direction next-door neighbour's the flat tube (12) of each flow of refrigerant parts (13) is used as water discharging part (30).
As shown in Figure 3, 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 flat tube (12); Form and cover second parts (17) on the top of first parts (16) by the exposed aluminium extrudate; And the lid (18) and (19) that form by the aluminium soldering sheet material that all has the brazing material layer in its opposite flank each, this lid be attached to first and second parts (16) and (17) thus the opposite end with sealing left end and right-end openings.Aluminum and fish plate (joint plate) (21) soldering that prolong along fore-and-aft direction is held towards each of refrigerant inlet header portion (5) and refrigerant outlet collector portion (6) on the outer surface of right-hand side lid (19) simultaneously.Refrigerant inlet pipe (7) and refrigerant outlet pipe (8) are connected to 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.Flat (24) between the sweep that is positioned at first parts (16) (22) forms a plurality of through holes (25) along the left and right directions predetermined space of being separated by.
Second parts (17) comprising: extend and the common front and rear wall (26) that forms to the cross section that is similar to alphabetical m of under shed 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 connects the upper end of partition wall (27) and the upper end of front and rear wall (26) with being integral.Resistance plate (29) connects the bottom of rear wall (26) of second parts (17) and the bottom of partition wall (27) with being integral on its whole length.Remove resistance plate left part and right part and form a plurality of cold-producing mediums by hole (31A) and (31B) along the left and right directions predetermined space ground that is separated by in the Background Region 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).Be integrally formed into a plurality of protuberances (27a) on the lower surface of partition wall (27), these a plurality of protuberances are along the left and right directions predetermined space and outstanding downwards of being separated by, and are assemblied in the through hole (25) of correspondence of first parts (16).This protuberance (27a) is to form by the predetermined portions that excises partition wall (27).
Be integrally formed into the ledge left (32) in refrigerant inlet header portion (5) to be assembled at a side and right-hand side lid (19) towards the front portion.On a side at rear portion, be integral ground and vertically formation top, ledge (33) and bottom, ledge (34) left left mutually with right-hand side lid (19) with separating.Top, ledge (33) is assemblied in the space (6a) of refrigerant outlet collector portion (6) left, and this space (6a) is positioned at resistance plate (29) top.The bottom, ledge (34) is assemblied in the space (6b) of refrigerant outlet collector portion (6) left, and this space (6b) is positioned at resistance plate (29) below.Be integrally formed into the outstanding paw (35) that engages left with in arcuate section that extends between the front side edge of right-hand side lid (19) and the apical margin and the arcuate section that between the back side edge of right-hand side lid (19) and apical margin, extends each.In addition, with the front and rear of the lower surface of right-hand side lid (19) in each be integrally formed into the outstanding paw (36) that engages left.The diapire that is positioned at towards the ledge left (32) of a side of front portion at right-hand side lid (19) forms refrigerant inlet (37).Right-hand side lid (19) be positioned at towards the top of a side at rear portion, the diapire of ledge (33) forms refrigerant outlet (38) left.Left-hand side lid (18) is the mirror image of right-hand side lid (19), and comprises the following part that is integrally formed: the ledge to the right (39) in refrigerant inlet header portion (5) to be assembled; Top, ledge (41) to the right in the space of refrigerant outlet collector portion (6) (6a) to be assembled, this space (6a) is positioned at resistance plate (29) top; Bottom, ledge (42) left in the space of refrigerant outlet collector portion (6) (6b) to be assembled, this space (6b) is positioned at resistance plate (29) below; And outstanding to the right upper and lower engages paw (43) and (44).Ledge to the right (39) and top, do not form opening in the diapire of ledge (41) to the right.
Fish plate (21) comprise the weak point that is communicated with the refrigerant inlet (37) of right-hand side lid (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 lid (19), cylindricality cold-producing medium outflow port (46).Each the part place that cold-producing medium flows into upper limb between port (45) and the cold-producing medium outflow port (46) and lower edge part that is arranged at fish plate (21) forms the bending part of giving prominence to (47) left.Top bending part (47) is assemblied in the middle part with respect to fore-and-aft direction of the upper limb of right-hand side lid (19), and is assemblied between two connecting walls (28) of second parts (17).Bottom bending part (47) is assemblied in the middle part with respect to fore-and-aft direction of the lower edge of right-hand side lid (19), and the flat (24) of first parts (16).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 lid (19).The cold-producing medium that the part that the diameter that forms at the place, 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 at the place, 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, can be in another end of refrigerant inlet and outlet (7) and (8) in conjunction with an expansion valve connector, this expansion valve connector is towards the end of pipe (7) and (8) simultaneously.
Soldering is together as follows for first and second parts (16) of refrigerant inlet-EXPORT CARTON (2) and (17), lid (18) and (19) and fish plate (21).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 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, the brazing material layer soldering that first and second parts (16) and (17) utilize first parts (16) together.In being connected of lid (18) and (19), anterior protuberance (39) and (32) are assemblied in limit and the space that be positioned at partition wall (27) the place ahead by first and second parts (16) and (17); Rear portion, top protuberance (41) and (33) be assemblied in limit by first and second parts (16) and (17) and be positioned at partition wall (27) rear and in the space of resistance plate (29) top; Rear portion, bottom protuberance (42) and (34) be assemblied in limit by first and second parts (16) and (17) and be positioned at partition wall (27) rear and in the space of resistance plate (29) below; Upper bond paw (43) and (35) are assembled to the connecting wall (28) of second parts (17); And lower bond paw (44) and (36) are assembled to the sweep (22) of first parts (16).Under the condition of setting up like this, lid (18) and (19) utilize its brazing material layer to be soldered to first and second parts (16) and (17).In the connection of fish plate (21), bending part (47) is assembled on right-hand side lid (19) and second parts (17), and joint paw (48) is assembled on the right-hand side lid (19).Under the condition of setting up like this, fish plate (21) utilizes the brazing material layer soldering of right-hand side lid (19) on right-hand side lid (19).
Thereby form refrigerant inlet-EXPORT CARTON (2).The part in the partition wall that is positioned at second parts (17) (27) the place ahead of refrigerant inlet-EXPORT CARTON (2) is as refrigerant inlet header portion (5), and the part that is positioned at partition wall (27) rear of refrigerant inlet-EXPORT CARTON (2) is as refrigerant outlet collector portion (6).Resistance plate (29) is divided into space, upper and lower (6a) and (6b) with refrigerant outlet collector portion (6) inside.Space (6a) and (6b) be interconnected by hole (31A) with (31B) by cold-producing medium.The refrigerant outlet (38) of right-hand side lid (19) is communicated with the upper space (6a) of refrigerant outlet collector portion (6).The cold-producing medium of fish plate (21) flows into port (45) and is communicated with refrigerant inlet (37), and cold-producing medium outflow port (46) is communicated with refrigerant outlet (38).
Shown in Fig. 4-8, 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 flat tube (12) connects first parts (50) thereon; Form and cover second parts (51) of the downside of first parts (50) by the exposed aluminium extrudate; Lid (52) and (53), this lid 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 soldering is on the outer surface of right-hand side lid (52) and flow into the end of collector portion (9) and cold-producing medium outflow collector portion (11) towards cold-producing medium.Cold-producing medium flows into collector portion (9) and cold-producing medium outflow collector portion (11) is interconnected in their right part via communication means (55).
In cold-producing medium inflow collector portion (9) and the cold-producing medium outflow collector portion (11) each all has end face, leading flank, trailing flank and bottom surface.The end face of collector portion (9) and (11) be used separately as horizontal plane (9a) and (11a) except them with respect to the inside part of fore-and-aft direction and the part the Outboard Sections.The inside part with respect to fore-and-aft direction of the end face of collector portion (9) and (11) is used separately as first to lower part (9b) and (11b), and this first is along straight line downwards and the surface that tilts inwardly with respect to fore-and-aft direction to the lower part.First to lower part (9b) with (11b) as the front and rear side surface of drainage groove (20).The front and rear side surface of drainage groove (20) upwards and along fore-and-aft direction scatters.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) is that first of collector portion (9) and (11) might not tilt along straight line to lower part (9b) with (11b), and they are also flexible, as long as they upwards and along fore-and-aft direction scatter.The Outboard Sections with respect to fore-and-aft direction of the end face of collector portion (9) and (11) is used separately as second to lower part (9c) and (11c), and this second is downwards and with respect to the surface of fore-and-aft direction towards outer incline along straight line to the lower part.Preferably, second to lower part (9c) and (11c) with respect to the horizontal plane to become 45 degree or bigger angle downward-sloping.The front and rear outer surface of collector portion (9) and (11) be connected to end face correspondence second and (11c) to lower part (9c).
First parts (50) comprising: form first collector formation part (56) that cold-producing medium flows into the top part of collector portion (9); Form second collector formation part (57) that cold-producing medium flows out the top part of collector portion (11); And 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 comprising: the top flat wall of level (56a); 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; 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 second inclined wall (56c).Second collector forms part (57) and comprising: the top flat wall of level (57a); 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; 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 second inclined wall (57c).The lower edge that connecting wall (58) makes first collector form first inclined wall (56b) of part (56) is connected with the lower edge that second collector forms first inclined wall (57b) of part (57) with being integral.Collector form the vertical wall (56d) of part (56) and (57) and bottom face (57d) respectively with respect to fore-and-aft direction downward with slope inwardly.The Outboard Sections of each this bottom surface partly forms stepped part (69), hereinafter will be described.The upper surface that first collector forms the roof (56a) of part (56) flows into the end face of collector portion (9) promptly as horizontal plane (9a) as cold-producing medium; Inclined wall (56b) and outer surface (56c) are as to lower part (9b) and (9c); And the outer surface of vertical wall (56d) flows into the top part of the front surface of collector 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 collector portion (11) promptly as horizontal plane (11a) as cold-producing medium; Inclined wall (57b) and upper surface (57c) are 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 collector 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) is towards the end of a side of connecting portion (10), and promptly first collector forms the rearward end of pipe jack (59) of part (56) and leading section that second collector forms the pipe jack (59) of part (57) and is positioned at first inclined wall (56b) and (57b) respectively.Therefore, pipe jack (59) is positioned at the side surface of drainage groove (20) in the end towards a side of connecting portion (10).The outer end with respect to fore-and-aft direction of pipe jack (59), promptly first collector forms the leading section of pipe jack (59) of part (56) and rearward end that second collector forms the pipe jack (59) of part (57) and is positioned at second inclined wall (56c) and (57c) respectively.Therefore, second of the leading section of pipe jack (59) and the rearward end end face that is positioned at collector portion (9) and (11) to lower part (9c) and (11c).
The collector of first parts (50) form the roof (56a) of part (56) and (57) and (57a) and inclined wall (56b), (56c), (57b) and (57c) in, the part on their left side that is positioned at each pipe jack (59) and right side is as downward and towards the sloping portion (61) of managing jack (59) inclination.Be positioned at the left side of each pipe jack (59) and the sloping portion (61) on right side and limit recess (62).Form the rhone (63) that is formed for discharging from refrigerant turn tank (3) condensed water on second inclined wall (56c) of part (56) and (57) and outer surface (57c) and vertical wall (56d) and the outer surface (57d) downwards at the collector of first parts (50), this rhone is connected with rearward end with the leading section of corresponding pipe jack (59).The bottom of each rhone (63) is downward-sloping along with the increase of corresponding pipe jack (59) distance of distance.Each rhone (63) be positioned at second inclined wall (56c) or (57c) on promptly be positioned at second to lower part (9c) the bottom of the part (11c) 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 to lower part (9c) or the bottom of the part (11c) be inclined relative to horizontal 45 the degree or bigger angles.Each rhone (63) be positioned at vertical wall (56d) or (57d) on the lower end of a part at vertical wall (56d) or bottom face opening (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 of being separated by.In addition, form a plurality of fixed vias (65) along the left and right directions predetermined space of being separated by in the connecting wall (58) of first parts (50), this fixed via departs from this drainage hole (64).
First parts (50) form with aluminium soldering sheet material by pressure processing, form part (56) and (57) so that form collector; It is roof (56a) and (57a), inclined wall (56b), (56c), (57b) and (57c), vertical wall (56d) and (57d), connecting wall (58), pipe jack (59), sloping portion (61) and rhone (63), and in connecting wall (58), form drainage hole (64) and fixed via (65).
Second parts (51) comprising: form first collector formation part (66) that cold-producing medium flows into the bottom part of collector portion (9); Form second collector formation part (67) that cold-producing medium flows out the bottom part of collector portion (11); And connecting wall (68), this connecting wall forms part (66) and (67) with collector and links together, and soldering at the connecting wall (58) of first parts (50) thus go up with formation 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) that connects the upper end of front and rear wall (67a) with being integral.The upper end and second collector that connecting wall (68) connects the rear wall (66a) of first collector formation part (66) with being integral form the partly upper end of the front walls (67a) of (67).The outer surface that first collector forms the outer surface of front walls (66a) of part (66) and the rear wall (67a) that second collector forms part (67) forms the outer surface of the outer surface of vertical wall (56d) of part (56) and the vertical wall (57d) that second collector forms part (57) with respect to fore-and-aft direction respectively from first collector of first parts (50) inside.Therefore, the vertical wall (56d) of first parts (50) and (57d) and the front and rear wall (66a) of second parts (51) and (67a) between bound fraction in each on stepped part (69) is set; Vertical wall (56d) and outer surface (57d) are outside from anterior and rear wall (66a) and outer surface (67a) with respect to fore-and-aft direction via the stepped part (69) of correspondence respectively; And the opening (see figure 4) is located in the stepped part (69) of correspondence in the whole bottom of each rhone (63).The outer surface of the upper edge portion of the front walls (66a) of first collector formation part (66) is concordant with the bottom 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 bottom 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 collector 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 collector 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 forms a plurality of through-hole forms of being separated by.Two adjacent circular cold-producing mediums increase and increase gradually by the distance of the distance between the hole (71) along with the left end of distance flow-dividing control wall (67c).It should be noted that two adjacent circular cold-producing mediums can be constant by the distance between hole (71).In the connecting wall (68) of second parts (51), form a plurality of through 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).
The following formation of second parts (51).At first, by be squeezed into form collector form the front and rear wall (66a) of part (66) and (67) and (67a) and diapire (66b) and (67b), the formation of second collector partly the flow-dividing control wall (67c) and the connecting wall (68) of (67).Subsequently, the extrudate that obtains is carried out pressure processing so that form cold-producing medium by hole (71) in flow-dividing control wall (67c), and in connecting wall (68), form drainage hole (72) and fixed via (65).
In auxiliary drain bar (54), form otch (74), so that edge extends and corresponding to drainage hole (64) and (72) of first and second parts (50) and (51) from it.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 their bottom is at the bottom surface opening of auxiliary drain bar (54).Apical margin at auxiliary drain bar (54) forms protuberance (76), so that align with 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).Auxiliary drain bar (54) forms with the exposed material of aluminium by pressure processing, so that form otch (74), auxiliary rhone (75) and protuberance (76).
Lid (52) and (53) are plate-like form, and are used in the aluminium soldering sheet material that all has the brazing material layer in its opposite flank each by pressure processing and form.Be integrally formed into the ledge left (77) in cold-producing medium flows into collector portion (9) to be assembled at a side and left-hand side lid (52) towards the front portion.Be integral ground and vertically formation top, ledge (78) and bottom, ledge (79) left left towards the side at rear portion and left-hand side lid (52) with being spaced from each other.Top, ledge (78) is assemblied in cold-producing medium and flows out in the space (11A) of collector portion (11) left, and this space (11A) is positioned at flow-dividing control wall (67c) top.The bottom, ledge (79) is assemblied in cold-producing medium and flows out in the space (11B) of collector portion (11) left, and this space (11B) is positioned at flow-dividing control wall (67c) below.In right-hand side lid (52), with in arcuate section that extends between cephalolateral margin and the root edge and the arcuate section that between posterior lateral margin and root edge, extends each be integral ground and forwardly with rear positions and apical margin be integrally formed into give prominence to left engage paw (81); In addition, be in center and form outstanding joint paw (82) in upper limb and the lower edge each to the right with respect to fore-and-aft direction.Respectively in the front portion of right-hand side lid (52), left the diapire of ledge (77) and rear portion, bottom, form through hole (83) and (84) in the diapire of ledge (79) left.Anterior through hole (83) is set up between cold-producing medium flows into collector portion (9) inside and outside and is communicated with.Rear through hole (84) flows out at cold-producing medium to set up between the space (11B) that is positioned at flow-dividing control wall (67c) below inside and outside of collector portion (11) and is communicated with.
Be integrally formed into the ledge to the right (85) in cold-producing medium flows into collector portion (9) to be assembled at a side and left-hand side lid (53) towards the front portion.Be integral ground and vertically formation top, ledge (86) and bottom, ledge (87) to the right to the right towards the side at rear portion and left-hand side lid (53) with being spaced from each other.Top, ledge (86) is assemblied in cold-producing medium and flows out in the space (11A) of collector portion (11) to the right, and this space (11A) is positioned at flow-dividing control wall (67c) top.The bottom, ledge (87) is assemblied in cold-producing medium and flows out in the space (11B) of collector portion (11) to the right, and this space (11B) is positioned at flow-dividing control wall (67c) below.Leftward in side cover (53), with in arcuate section that extends between cephalolateral margin and the root edge and the arcuate section that between posterior lateral margin and root edge, extends each be integral ground and forwardly with rear positions and apical margin be integrally formed into give prominence to the right engage paw (88).Ledge to the right (85) and bottom, do not form through hole in the diapire of ledge (87) to the right.
Communication means (55) forms with the exposed section bar of aluminium by pressure processing, and is presenting when the right side is seen and the identical plate-like form of right-hand side lid (52).The peripheral part soldering of communication means (55) is on the outer surface of right-hand side lid (52).Go up to form outside projection (89) so that between two through holes (83) of right-hand side lid (52) and (84), set up connection in communication means (55).The inside usefulness of outside projection (89) acts between two through holes (83) of right-hand side lid (52) and (84) and sets up the communication passage (91) that is communicated with.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 lid (52) is assemblied in the corresponding otch (92).
In the assembling of refrigerant turn tank (3), soldering is together as follows for first and second parts (50) and (51), auxiliary drain bar (54), lid (52) and (53) and communication means (55).In the assembling of first parts (50) and second parts (51), connecting wall (58) and (68) are in contact with one another, thereby align mutually in drainage hole (64) and (72) and fixed via (65) and (73) alignment mutually; Vertical wall (56d) and bottom (57d) that collector forms part (56) and (57) engage the top that first collector forms the correspondence of the antetheca (66a) of part (66) and the rear wall (67a) that second collector forms part (67); And the protuberance (76) of auxiliary drain bar (54) is from the fixed via (65) of below insertion parts (50) and (51) and (73) and be crimped then, thereby with parts (56) and (57) tack together.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 being connected of lid (52) and (53), anterior ledge (77) and (85) are assemblied in first collector by parts (50) and (51) and form in the space that part (56) and (66) limits; Rear portion, top ledge (78) and (86) be assemblied in second collector by parts (50) and (51) form that part (57) and (67) limits and the upper space above flow-dividing control wall (67c) in; Rear portion, bottom ledge (79) and (87) be assemblied in second collector by parts (50) and (51) form that part (57) and (67) limits and the lower space below flow-dividing control wall (67c) in; Upper bond paw (81) and (88) are assemblied on first parts (50); And lower bond paw (81) and (88) are assemblied on second parts (51).Under the condition of setting up like this, lid (52) and (53) utilize 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 lid (52), is assemblied in the corresponding otch (92) thereby engage paw (82).Under the condition of setting up like this, the brazing material layer that utilizes right-hand side lid (52) with communication means (55) soldering on right-hand side lid (52).
Thereby form refrigerant turn tank (3).First collector of parts (50) and (51) forms part (56) and (66) and defines cold-producing medium inflow collector portion (9).Second collector forms part (57) and (67) and defines cold-producing medium outflow collector portion (11).The inside that flow-dividing control wall (67c) flows out collector portion (11) with cold-producing medium forms space, upper and lower (11A) and (11B).Space (11A) and (11B) be interconnected by hole (71) by circular cold-producing medium.The rear through hole (84) of right-hand side lid (52) is communicated with the lower space (11B) that cold-producing medium flows out collector portion (11).Cold-producing medium flows into the inside of collector portion (9) and the lower space (11B) of cold-producing medium outflow collector portion (11) is interconnected via the through hole (83) of right-hand side lid (52) and the interior communication passage (91) of outside projection (89) of (84) and communication means (55).Connecting wall (58) and (68) of parts (50) and (51) define connecting portion (10).Cold-producing medium flows into first of collector portion (9) and flows out first of collector portion (11) to lower part (9b), cold-producing medium and define drainage groove (20) to lower part (11b) and connecting portion (10).
Each flat tube (12) is made with the exposed aluminium extrudate, and presents the flat form that has wide degree along fore-and-aft direction.In flat tube (12), form a plurality of coolant channels (12a) abreast along its longitudinal extension.Anterior flat tube (12) is arranged to along the position of left and right directions identical with rear portion flat tube (12).The pipe jack (23) of correspondence of first parts (16) of refrigerant inlet-EXPORT CARTON (2) is inserted in the upper end of flat 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 flat tube (12), and the brazing material layer soldering that utilizes first parts (50) is on first parts (50).Anterior flat tube (12) flows into collector portion (9) with refrigerant inlet header portion (5) and cold-producing medium and is communicated with.Rear portion flat tube (12) flows out collector portion (11) with refrigerant outlet collector portion (6) and cold-producing medium and is communicated with.
Preferably, flat tube (12) is promptly managed height (h) along the thickness of left and right directions measurement and is arrived the 1.5mm (see figure 8) for 0.75mm; The width that flat tube (12) is measured along fore-and-aft direction is that 12mm is to 18mm; The wall thickness of flat 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 front bulkhead and aft bulkhead are measured on its outer surface is that 0.35mm is to 0.75mm.
Replace using the flat tube (12) that is formed by the aluminium extrudate, flat tube to be used forms inner fins and inserts aluminum seam welded tube (seam welded pipe) to 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 process to form such plate, and this plate comprises that two flat wall that link together via the coupling part form parts; Under the protrusion condition, form part and form part at their sidewall that is integrally formed into this opposed side edges place, coupling part with corresponding flat wall; And a plurality of partition walls form parts, and 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 forms part to be abutted against mutually like this, carries out soldering then.Partition wall forms part and becomes partition wall.
Each corrugated fin (14) 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), and each this coupling part is all with crest part (14a) and trough (14b) (see figure 8) that links together partly.(14c) forms along fore-and-aft direction a plurality of grids (louver) arranged side by side (94A) and (94B) in the coupling part.Constitute the shared corrugated fin of front and rear flat tube (12) (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 flat tube (12) and rear portion flat tube (12).The crest part (14a) of corrugated fin (14) and (14b) soldering of trough part are on the front and rear flat tube (12) that constitutes flow of refrigerant parts (13).In each of the coupling part of corrugated fin (14) (14c), alternately form the first grid group (95A) that comprises a plurality of first grids (94A) downward-sloping towards the front portion and comprise a plurality of towards the front portion the second grid group (95B) of acclivitous second grid (94B).The first grid group (95A) forms the anterior part corresponding to each flat tube (12), and the second grid group (95B) forms the rear portion corresponding to each flat tube (12).Front end first grid (94A) of the first grid group (95A) is arranged to the anterior part corresponding to rear portion flat tube (12), at least this first grid is positioned at along between fore-and-aft direction next-door neighbour's the flat tube (12), i.e. the interior (see figure 4) of water discharging part (30) of flow of refrigerant parts (13).At each coupling part (14c), corrugated fin (14) has flat in adjacent grid group (95A) with (95B).
The fin height (H) of corrugated fin (14) is the air line distance between crest part (14a) and the trough part (14b), and fin height (H) is preferably 7.0mm to 10.0mm.In addition, the spacing of fin (Pf) of corrugated fin (14) is half (being Pf=P/2) of the perpendicular separation (P) between the core (vertically) of adjacent peaks part (14a) or adjacent trough part (14b), and spacing of fin (Pf) is preferably 1.3mm to 1.8mm.In the crest of corrugated fin (14) part (14a) 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 the coupling part (14c) of correspondence.Preferably, the radius of curvature (R) of fillet part is 0.7mm or littler (see figure 8).
In the manufacturing of evaporimeter (1), will assemble temporarily and be fixed together except the building block refrigerant inlet pipe (7) and the refrigerant outlet pipe (8), and with all building block solderings together.
Evaporimeter (1) and compressor, condenser 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 9, 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 port (45) and right-hand side lid (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 all anterior flat tubes (12).
The cold-producing medium that has entered the coolant channel (12a) of all anterior flat tubes (12) is downward through coolant channel (12a), and enters the cold-producing medium inflow collector portion (9) of refrigerant turn tank (3).The cold-producing medium that has entered cold-producing medium inflow collector portion (9) flows to the right, and flow through the communication passage (91) in the outside projection (89) of anterior through hole (83), communication means (55) of right-hand side lid (52) and the rear through hole (84) of right-hand side lid (52), the lower space (11B) that changes its flow direction thus and enter cold-producing medium outflow collector (11) then.
Even when the distribution (mass dryness fraction of cold-producing medium) of the temperature of the cold-producing medium that flows through anterior flat tube (12) owing under the condition of evenly shunting from refrigerant inlet header portion (5) to anterior flat tube (12) when mobile cold-producing medium fault becomes inhomogeneous, change its flow direction and flow into cold-producing medium refrigerant mixed when flowing out the lower space (11B) of collector portion (11) when flow into cold-producing medium that collector portion (9) flows out from cold-producing medium, thereby its temperature becomes evenly.
The cold-producing medium that has entered the lower space (11B) of cold-producing medium outflow collector 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 portion flat tubes (12).
Having flowed into the cold-producing medium of coolant channel (12a) of flat 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 the elongated cold-producing medium by resistance plate (29) by hole (31A) and (31B) enters upper space (6a).Because flow-dividing control wall (67c) provides resistance to cold-producing medium stream, so flow out the upper space (11A) of collector portion (11) from cold-producing medium even to the branch rheology of rear portion flat tube (12), and the shunting from refrigerant inlet header portion (5) to anterior flat tube (12) is becoming evenly to a greater extent.As a result, refrigerant flow becomes in all flat tubes (12) evenly, thereby the Temperature Distribution in heat exchange core portion (4) becomes evenly.
Next, the cold-producing medium that has entered the upper space (6a) of refrigerant outlet collector portion (6) flows out to refrigerant outlet pipe (8) by the refrigerant outlet (38) of right-hand side lid (19) and the cold-producing medium outflow port (46) of fish plate (21).In the coolant channel (12a) of coolant channel that flows through anterior flat tube (12) (12a) and rear portion flat tube (12), cold-producing medium and the direction of arrow X shown in Fig. 1 and 9 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, upward and on the surface of corrugated fin (14) generate condensed water at flat tube (12).The condensed water that produces mainly flows towards the joint portion between joint portion between the crest part (14a) of flat tube (12) and corrugated fin (14) and the trough part (14b) in flat tube (12) and corrugated fin (14) because of capillary effect, then owing to flow forward along this joint portion by the air in gap by this air.Therefore, water flows downward along the front end surface of the water discharging part towards correspondence (30) of each rear portion flat tube (12), and flows downward along the front end surface of each anterior flat tube (12).Be provided with front end first grid (94A) of the first grid group (95A) corresponding to the anterior part of each rear portion flat tube (12), but, if this first grid is not positioned at the water discharging part (30) of corresponding flow of refrigerant parts (13) at least, then condensed water can along the coupling part (14c) of corrugated fin (14) wherein do not form grid (94A) and part (94B) by flowing forward in the water discharging part (30), this can cause drainage performance to reduce when the condensation water quantity that produces is big.On the contrary, in the water discharging part (30) of the flow of refrigerant parts (13) of correspondence, have at least under the situation of front end first grid (94A) that is configured to the first grid group (95A) corresponding with the anterior part of each rear portion flat tube (12), condensed water be downward through the flow of refrigerant parts (13) that are positioned at correspondence water discharging part (30) first grid (94A) and be adjacently located on gap between first grid (94A) of its rear side.Therefore, can prevent from passing through to flow forward in the water discharging part (30) at the condensed water that generates on the surface of corrugated fin (14).Therefore, even when the amount of the condensed water that produces is big, can prevent that still drainage performance from reducing.
The condensed water of discharging from corrugated fin (14) flows to downwards in the cold-producing medium inflow collector portion (9) and cold-producing medium outflow collector portion (11) of refrigerant turn tank (3).The a part of condensed water that flows to downwards on the refrigerant turn tank (3) enters drainage groove (20).When the condensed water of assembling in the drainage groove (20) reached a certain amount of, condensed water flowed down connecting portion (10) by osculum (64) and (72); Lateral section 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) below downwards from the bottom end opening of auxiliary rhone (75).Remaining condensed water enters rhone (63); In rhone (63), flow; And from the bottom end opening of rhone (63) promptly Open Side Down drops onto refrigerant turn tank (3) below from stepped part (69).
Said mechanism can prevent condensate freezes, otherwise can since in regional at the horizontal plane (9a) of the collector portion (9) of the bottom of corrugated fin (14) and refrigerant turn tank (3) and (11) and (11a) a large amount of condensed waters of stagnation cause condensate freezes.As a result, can the avoid evaporating performance of device (1) reduces.
In the foregoing description 1, cold-producing medium turns to the cold-producing medium of header (3) to flow into collector portion (9) and cold-producing medium flows out the lower space (11B) of collector portion (11) in the realization connection of the end of the refrigerant inlet that refrigerant inlet header portion (5) are set (37).But alternatively, this connection can realize at the end place relative with refrigerant inlet (37).
Embodiment 2
This embodiment is shown in Figure 10-13.
In this embodiment, evaporimeter (100) is configured to a plurality of flow of refrigerant parts (101) and is provided with stackedly and combines along left and right directions, their width extends along fore-and-aft direction (airflow direction) simultaneously, and each this mobile parts all has the rectangular shape that vertically prolongs.
Each flow of refrigerant parts (101) comprises its peripheral part soldering two vertically extending rectangular aluminum sheet (102) together.Each aluminium sheet (102) is used in the aluminium soldering sheet material that has the brazing material layer in its opposite flank each and makes.Be provided with between these two aluminium sheets (102) that two (front and rear) is vertically extending, the refrigerant flow tube portion branch (103) that protrudes and (104) and the collector that protrudes form partly (105) and (106), so partly constitutes flow of refrigerant parts (101).The collector that protrudes forms upper end and the bottom that part (105) and (106) is connected to the correspondence of refrigerant flow tube portion branch (103) and (104).The corrugated inner fin (107) of aluminum is set in the mode that extends across front and rear refrigerant flow tube portion branch (103) and (104) in each flow of refrigerant parts (101).Corrugated inner fin (107) soldering is on aluminium sheet (102).The corrugated inner fin that it should be noted that two aluminums can be separately positioned in corresponding the refrigerant flow tube portion branch (103) and (104).The rhone (108) (water discharging part) of condensed water is vertically extended and is suitable for discharging in formation in the part of the outer surface of flow of refrigerant parts (101), and this part is sandwiched between front and rear refrigerant flow tube portion branch (103) and (104).
The hand aluminum plate (102) that is used for partly constituting flow of refrigerant parts (101) comprises that two (front and rear) tube portion vertically extending, that protrude forms protuberance (109) and four collectors that protrude form protuberances (110) to the right to the right, this collector form protuberance be connected to tube portion form protuberance (109) correspondence top and bottom and have protrusion height greater than this tube portion formation protuberance (109).The part that is clipped between two tube portions formation protuberances (109) of the right-hand surface of hand aluminum plate (102) is used as rhone (108).In the roof of each collector formation protuberance (110), form through hole (111).The left-hand side aluminium sheet (102) that is used for partly constituting flow of refrigerant parts (101) is the mirror image of hand aluminum plate (102).The collector of adjacent two flow of refrigerant parts (101) forms part (105) and (106) soldering together, is communicated with the through hole that the collector of another flow of refrigerant parts (101) forms part (105) and (106) thereby the collector of one of adjacent flow of refrigerant parts (101) forms the through hole (111) of part (105) and (106).Therefore, the collector of adjacent flow of refrigerant parts (101) forms part (105) and (106) and combines under the connection condition respectively, thereby form upper and lower collector (112) that is communicated with anterior refrigerant flow tube portion branch (103) and the upper and lower collector (113) that is communicated with rear portion refrigerant flow tube portion branch (103).Forming the gap between upper header (112) and (113) and between lower header (112) and (113), and the gap between lower header (112) and (113) is as drainage gap.
In flow of refrigerant parts (101), collector forms part (105) and (106) equals refrigerant flow tube portion branch (103) and (104) along the height of left and right directions height.The gap is passed through as air in gap between the refrigerant flow tube portion branch (103) of adjacent flow of refrigerant parts (101) and the gap between the refrigerant flow tube portion branch (104).The corrugated fin (14) that is similar to embodiment 1 is arranged on corresponding air by in the gap, so as between refrigerant flow tube portion branch (103) and (104) by shared.The crest part (14a) of each corrugated fin (14) and (14b) soldering of trough part are on the outer surface of refrigerant flow tube portion branch (103) and (104).The first grid group (95A) of each corrugated fin (14) forms the anterior part corresponding to each refrigerant flow tube portion branch (103) and (104), and the second grid group (95B) forms the rear portion corresponding to each refrigerant flow tube portion branch (103) and (104).Front end first grid (94A) that has the first grid group (95A) corresponding in position at least with the anterior part of rear portion refrigerant flow tube portion branch (104) corresponding to rhone (108).
Preferably, the thickness measured along left and right directions of the refrigerant flow tube portion branch (103) of flow of refrigerant parts (101) and (104) promptly manage height (h1) for 0.75mm to 1.5mm (seeing Figure 13); Promptly managing width along the width of fore-and-aft direction measurement is that 12mm is to 18mm; And the wall thickness of aluminium sheet (102) is that 0.175mm is to 0.275mm.
Identical in the fin height (H) that it should be noted that corrugated fin (14) and spacing of fin (Pf) and the embodiment 1.
In the manufacturing of evaporimeter (100), its building block is assembled provisionally and fixed, and with all building block solderings together.
In the evaporimeter (100) of present embodiment, optimize flowing of cold-producing medium via the connection of through hole (111) by blocking between two predetermined adjacent flow of refrigerant parts (101).
In the evaporimeter (100) of present embodiment, when when generating condensed water on refrigerant flow tube portion branch (103) and (104) and on the surface of corrugated fin (14), the condensed water that generates mainly flows towards the joint portion between joint portion between the crest part (14a) of refrigerant flow tube portion branch (103) and (104) and corrugated fin (14) and the trough part (14b) in refrigerant flow tube portion branch (103) and (104) and corrugated fin (14) because of capillary effect, then owing to flow forward along this joint portion by the air in gap by this air.Subsequently, water flows downward along the front end face of the rhone towards correspondence (108) of each rear flow tube portion (104), and flows downward along the front end face of each anterior flow duct part (103).In addition, owing in the rhone (108) of the flow of refrigerant parts (101) of correspondence, have front end first grid (94A) that is configured to the first grid group (95A) corresponding at least, so also first grid (94A) of the rhone (108) by being positioned at flow of refrigerant parts (101) and the gap that is adjacently located between first grid (94A) of its rear side flow downward condensed water with the anterior part of each rear flow tube portion (104).Therefore, can prevent from passing through to flow forward in the rhone (108) at the condensed water that generates on the surface of corrugated fin (14).Therefore, even when the amount of the condensed water that produces is big, can prevent that still drainage performance from reducing.
In the evaporimeter of mentioning as the automotive air conditioning device evaporimeter that uses the chloro-fluoro-carbon kind cold-producing medium, above-mentioned two embodiment have been described.But the present invention is not limited thereto.Evaporimeter of the present invention can be applicable to for example evaporimeter of the automotive air conditioning device used of automobile of vehicle, and this automotive air conditioning device comprises compressor, gas cooler, intermediate heat exchanger, expansion valve and evaporimeter, and uses for example CO of supercritical refrigerant 2Cold-producing medium.
Industrial applicability
Evaporimeter of the present invention is advantageously used for the evaporimeter for the air conditioning for automobiles device, this air conditioning for automobiles Device is the refrigeration circulation of for example automobile.

Claims (16)

1. evaporimeter, this evaporimeter comprise that the air of being separated by a plurality of flow of refrigerant parts that predetermined space be arranged in parallel and being arranged on the correspondence between the adjacent flow of refrigerant parts along left and right directions is by the corrugated fin in the gap, wherein
Each flow of refrigerant parts comprises a plurality of refrigerant flow tube portion branches that are provided with along fore-and-aft direction; Each corrugated fin is arranged to extend across all flow of refrigerant tube portions; Between dividing, the refrigerant flow tube portion adjacent one another are along fore-and-aft direction form vertically extending water discharging part; And each corrugated fin comprises the crest part, trough part and the coupling part that this crest part and trough are partly linked together, each this coupling part has a plurality of grids that are provided with along fore-and-aft direction, the anterior part of grid group to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts that comprises a plurality of grids downward-sloping towards the front portion wherein is set in each connecting portion office of corrugated fin, and in the water discharging part of flow of refrigerant parts, has at least and be configured to the anterior partly front end grid of corresponding grid group that divides with each refrigerant flow tube portion except dividing in the refrigerant flow tube portion of front end.
2. evaporimeter according to claim 1, it is characterized in that, form in each connecting portion office of corrugated fin and comprise a plurality of rear portions of the second grid group to divide corresponding to each refrigerant flow tube portion of flow of refrigerant parts towards the acclivitous grid in front portion.
3. evaporimeter according to claim 1 is characterized in that, the fin height of each corrugated fin is that 7.0mm is that 1.3mm is to 1.8mm to 10.0mm and spacing of fin.
4. evaporimeter according to claim 1, it is characterized in that, in the crest of each corrugated fin part and the trough part each comprises flat and fillet part, this fillet partly be positioned at flat correspondence the opposite end and be connected to the coupling part of correspondence; And the radius of curvature of this fillet part is 0.7mm or littler.
5. evaporimeter according to claim 1 is characterized in that, the pipe group is arranged to many rows along fore-and-aft direction with being separated by predetermined space, and each pipe group comprises a plurality of flat tubes that be arranged in parallel along left and right directions with being separated by predetermined space; And constitute single flow of refrigerant parts along a plurality of flat tubes that fore-and-aft direction is provided with in tandem; Each flat tube is as the refrigerant flow tube portion branch; The corrugated fin soldering is on this flat tube; And be used as water discharging part along the gap between the fore-and-aft direction flat tube adjacent one another are.
6. evaporimeter according to claim 5, it is characterized in that, this evaporimeter also comprises: refrigerant inlet header portion, this refrigerant inlet header portion is arranged on first distolateral towards a side of front portion and flow of refrigerant parts, and the flat tube of at least one single pipe group is connected to this refrigerant inlet header portion; Refrigerant outlet collector portion, this refrigerant outlet collector portion are arranged on the first distolateral and be positioned at this refrigerant inlet header portion rear of flow of refrigerant parts, and the flat tube of residue pipe group is connected to this refrigerant outlet collector portion; The first intermediate header portion, this first intermediate header portion are arranged on second distolateral towards a side of front portion and flow of refrigerant parts, and the flat tube that is connected to this refrigerant inlet header portion is connected to this first intermediate header portion; And the second intermediate header portion, this second intermediate header portion is arranged on the second distolateral and be positioned at the first intermediate header portion rear of flow of refrigerant parts, the flat tube that is connected to refrigerant outlet collector portion is connected to this second intermediate header portion, and wherein the first and second intermediate header portions are interconnected.
7. evaporimeter according to claim 6 is characterized in that, the described first and second intermediate header portions are combined into one.
8. evaporimeter according to claim 7 is characterized in that, the position corresponding to water discharging part on the upper surface of the part between the first and second intermediate header portions is provided with the drainage groove that extends along left and right directions.
9. evaporimeter according to claim 5 is characterized in that, pipe highly is that the thickness that each flat tube is measured along left and right directions is that 0.75mm is to 1.5mm.
10. evaporimeter according to claim 1 is characterized in that, each flow of refrigerant parts is formed by two metallic plates that peripheral part combines; Form a plurality of protrusion refrigerant flow tube portion branches that are provided with along fore-and-aft direction between these two metallic plates, each in the opposed end that this protrusion refrigerant flow tube portion is divided is located to connect ground formation and is protruded collector formation part; A plurality of flow of refrigerant stacking parts, part is abutted against mutually and form air between the protrusion refrigerant flow tube portion is divided passes through the gap thereby the protrusion collector of these a plurality of flow of refrigerant parts forms; And corrugated fin be arranged between the adjacent flow of refrigerant parts each air by in the gap also soldering on described flow of refrigerant parts.
11. evaporimeter according to claim 10, it is characterized in that, comprise groove along the water discharging part between the fore-and-aft direction refrigerant flow tube portion branch adjacent one another are, this groove forms to internal strain by making two metallic plates that constitute corresponding flow of refrigerant parts.
12. evaporimeter according to claim 10 is characterized in that, it is that 0.75mm is to 1.5mm that the height of tube portion promptly protrudes the thickness that the refrigerant flow tube portion branch measures along left and right directions.
13. a kind of refrigeration cycle that comprises compressor, condenser and evaporimeter and use the chloro-fluoro-carbon kind cold-producing medium, this evaporimeter are according to any one evaporimeter among the claim 1-12.
14. vehicle that kind of refrigeration cycle according to claim 13 wherein is installed as automotive air conditioning device.
15. supercritical refrigeration cycle, this supercritical refrigeration cycle comprises compressor, gas cooler, evaporimeter, decompressor and is used at the cold-producing medium that leaves gas cooler and leaves the intermediate heat exchanger that carries out heat exchange between the cold-producing medium of evaporimeter, and use supercritical refrigerant in this supercritical refrigeration cycle, this evaporimeter is according to any one evaporimeter among the claim 1-12.
16. vehicle that kind of refrigeration cycle according to claim 15 wherein is installed as automotive air conditioning device.
CNA2005800480455A 2004-12-16 2005-12-07 Evaporator Pending CN101115963A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP363859/2004 2004-12-16
JP2004363859 2004-12-16
US60/637,745 2004-12-22

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102272548A (en) * 2009-01-09 2011-12-07 康奈可关精株式会社 Compound heat exchanger
CN102889819A (en) * 2012-10-15 2013-01-23 三花控股集团有限公司 Header pipe and heat exchanger
CN103238038A (en) * 2010-08-24 2013-08-07 开利公司 Microchannel heat exchanger fin
CN103703337A (en) * 2011-03-31 2014-04-02 法雷奥热系统公司 Heat exchanger collector box, in particular for motor vehicle, and corresponding heat exchanger
CN103863063A (en) * 2014-04-04 2014-06-18 安徽江淮汽车股份有限公司 Vehicle air grid
CN104334999A (en) * 2012-05-22 2015-02-04 汉拿伟世通空调有限公司 Vaporizer
CN104334998A (en) * 2012-05-22 2015-02-04 汉拿伟世通空调有限公司 Vaporizer
WO2017020666A1 (en) * 2015-08-05 2017-02-09 丹佛斯微通道换热器（嘉兴）有限公司 Heat exchanger
CN107208943A (en) * 2015-02-27 2017-09-26 株式会社电装 Refrigerant evaporator
CN110050168A (en) * 2016-12-07 2019-07-23 开利公司 Micro-pipe heat exchanger header

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102272548A (en) * 2009-01-09 2011-12-07 康奈可关精株式会社 Compound heat exchanger
US9016355B2 (en) 2009-01-09 2015-04-28 Calsonic Kansei Corporation Compound type heat exchanger
CN102272548B (en) * 2009-01-09 2014-07-23 康奈可关精株式会社 Compound heat exchanger
CN103238038A (en) * 2010-08-24 2013-08-07 开利公司 Microchannel heat exchanger fin
CN103238038B (en) * 2010-08-24 2016-03-16 开利公司 Microchannel heat exchanger fin
CN103703337B (en) * 2011-03-31 2017-06-06 法雷奥热系统公司 Particularly it is used for the heat exchanger header case and corresponding heat exchanger of motor vehicles
CN103703337A (en) * 2011-03-31 2014-04-02 法雷奥热系统公司 Heat exchanger collector box, in particular for motor vehicle, and corresponding heat exchanger
CN104334998A (en) * 2012-05-22 2015-02-04 汉拿伟世通空调有限公司 Vaporizer
CN104334999A (en) * 2012-05-22 2015-02-04 汉拿伟世通空调有限公司 Vaporizer
CN104334999B (en) * 2012-05-22 2017-06-16 翰昂汽车零部件有限公司 Evaporator
CN104334998B (en) * 2012-05-22 2017-07-07 翰昂汽车零部件有限公司 Evaporator
CN102889819B (en) * 2012-10-15 2014-03-12 三花控股集团有限公司 Header pipe and heat exchanger
CN102889819A (en) * 2012-10-15 2013-01-23 三花控股集团有限公司 Header pipe and heat exchanger
CN103863063A (en) * 2014-04-04 2014-06-18 安徽江淮汽车股份有限公司 Vehicle air grid
CN103863063B (en) * 2014-04-04 2016-01-20 安徽江淮汽车股份有限公司 Vehicle air grid
CN107208943A (en) * 2015-02-27 2017-09-26 株式会社电装 Refrigerant evaporator
CN107208943B (en) * 2015-02-27 2020-08-14 株式会社电装 Refrigerant evaporator
WO2017020666A1 (en) * 2015-08-05 2017-02-09 丹佛斯微通道换热器（嘉兴）有限公司 Heat exchanger
CN110050168A (en) * 2016-12-07 2019-07-23 开利公司 Micro-pipe heat exchanger header

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