CN1820176A - Heat exchanger - Google Patents
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- CN1820176A CN1820176A CN 200480019476 CN200480019476A CN1820176A CN 1820176 A CN1820176 A CN 1820176A CN 200480019476 CN200480019476 CN 200480019476 CN 200480019476 A CN200480019476 A CN 200480019476A CN 1820176 A CN1820176 A CN 1820176A
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Abstract
A heat exchanger 1 comprises a refrigerant inlet-outlet tank 2, a refrigerant turn tank 3, and tube groups 5 in the form of at least two rows arranged between the two tanks 2, 3 and each comprising a plurality of heat exchange tubes 4. The refrigerant inlet-outlet tank 2 has its interior divided into a refrigerant inlet header chamber 13 and a refrigerant outlet header chamber 14. The refrigerant turn tank 3 has its interior divided by a divided flow control plate 44 into a refrigerant inflow header chamber 32 and a refrigerant outflow header chamber 33. The divided flow control plate 44 has refrigerant dam portions 45A, 45B at respective opposite end portions thereof, and a refrigerant passing portion 46 provided between the dam portions 45A, 45B and having one or at least two refrigerant passing holes 43. The heat exchanger 1 exhibits improved heat exchange performance when used as an evaporator.
Description
The cross reference of related application
The application proposes according to 35U.S.C. § 111 (a), and requires the provisional application No.60/486 that submitted to according to 35U.S.C. § 111 (b) on July 15th, 2003 according to 35U.S.C. § 119 (e) (1), and 897 and No.60/486,898 applying date interests.
Technical field
The present invention relates to heat exchanger, more specifically, relate to the heat exchanger of the evaporimeter that is suitable for use as automotive air conditioning device, this automotive air conditioning device is the kind of refrigeration cycle that will be installed in the automobile.
In the literary composition and the term that uses in the appended claims " aluminium " except fine aluminium, also comprise aluminium alloy.
Background technology
Up to now, be extensive use of so-called lamination type evaporimeter as automobile evaporator, this evaporimeter comprises a plurality of flat hollow bodies and the venetian blind type corrugated fin that is arranged in parallel, each flat hollow bodies comprises toward each other and along the mutual soldering of its circumferential edge a pair of discoid plate together, this fin be arranged between every pair of adjacent flat hollow bodies and soldering thereon.Yet, in recent years, need provide a kind of size and weight further to reduce and have more high performance evaporimeter.
In order to satisfy this demand, the applicant has proposed such evaporimeter, this evaporimeter comprises and is arranged to spaced refrigerant inlet-EXPORT CARTON and refrigerant turn tank, and between this is to case, be arranged in a plurality of pipe groups of air by isolated two rows on the direction of evaporimeter, what each pipe group was included in case vertically goes up a plurality of heat exchanger tubes that the compartment of terrain is arranged in parallel, the opposite end of the heat exchanger tube of each pipe group is connected to each case, the inside of this refrigerant inlet-EXPORT CARTON is separated wall and is divided into the refrigerant inlet header chamber and the refrigerant outlet manifold chambers of arranging by direction along air, these two manifold chambers are communicated with the heat exchanger tube of corresponding two pipe groups, the cold-producing medium that flows into the inlet header chamber of refrigerant inlet-EXPORT CARTON can flow in the refrigerant turn tank by corresponding heat exchanger tube, it is indoor with the outlet header that flows into refrigerant inlet-EXPORT CARTON by corresponding heat exchanger tube to change its route at this case inner refrigerant, and the inside of outlet header chamber is had the dividing plate of cold-producing medium by the hole and is divided into first space that is communicated with corresponding heat exchanger tube and second space (seeing communique JP-A No.2003-75024) that is used to cold-producing medium is therefrom flowed out.For this evaporimeter, have cold-producing medium by the hole and be arranged on the indoor dividing plate of outlet header and be used to make cold-producing medium to flow through the heat exchanger tube of two pipe groups, thereby can make evaporimeter have the heat exchange performance of raising with uniform amount.
But what the inventor carried out further studies show that, the disclosed evaporimeter in the above-mentioned communique makes cold-producing medium flow through the heat exchanger tube of pipe group and still await improvement aspect the heat exchange performance with uniform amount.
The objective of the invention is to overcome the problems referred to above, and provide a kind of heat exchange performance extraordinary heat exchanger.
Summary of the invention
To achieve these goals, the present invention includes following pattern.
1) a kind of heat exchanger, this heat exchanger comprises and is arranged to spaced refrigerant inlet-EXPORT CARTON and refrigerant turn tank, and be a plurality of pipe groups the row who arranges by compartment of terrain on the air-flow direction of heat exchanger in the form between the described case, what each pipe group was included in described case vertically goes up a plurality of heat exchanger tubes that the compartment of terrain is arranged in parallel, the opposite end of the heat exchanger tube of each pipe group joins on each case, the inside of refrigerant inlet-EXPORT CARTON is separated wall and is divided into the refrigerant inlet header chamber and the refrigerant outlet manifold chambers of arranging along air-flow direction, in described two manifold chambers each is connected with the heat exchanger tube of at least one comb group, the cold-producing medium that flows into the inlet header chamber of refrigerant inlet-EXPORT CARTON can flow into refrigerant turn tank by corresponding heat exchanger tube, change its route so that flow into the outlet header chamber of refrigerant inlet-EXPORT CARTON by corresponding heat exchanger tube at this refrigerant turn tank inner refrigerant
Described refrigerant turn tank has and is used to make cold-producing medium to flow into the homogenising parts of the heat exchanger tube that is communicated with this inlet header chamber from described inlet header chamber with evenly shunting.
2) paragraph 1) described in heat exchanger, wherein, described homogenising parts comprise that the inside with described refrigerant turn tank is divided into along the flow-dividing control plate in two spaces that air-flow direction is arranged, described two spaces are interconnected, the heat exchanger tube that is communicated with the inlet header chamber is communicated with one of them space of refrigerant turn tank, and the heat exchanger tube that is communicated with the outlet header chamber is communicated with another space of refrigerant turn tank.
3) paragraph 2) described in heat exchanger, wherein, be formed with one or at least two cold-producing mediums in the described flow-dividing control plate by the hole, described two spaces keep being communicated with by the hole by this cold-producing medium.
4) paragraph 3) described in heat exchanger, wherein, cold-producing medium is to pass through the hole with the air cold-producing medium that the relation of adverse current flows through in the described flow-dividing control plate that flows.
5) paragraph 3) described in heat exchanger, wherein, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, described cold-producing medium by part in the gross area of ownership cryogen by the hole of formation be 130～510mm
2
6) paragraph 3) described in heat exchanger, wherein, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, the opening ratio of this heat exchanger (opening ratio) is 20～75%, and this opening ratio is the ratio of quantity that passes through the heat exchanger tube of the quantity in hole and each pipe group at the cold-producing medium that described cold-producing medium forms in by part.
7) paragraph 3) described in heat exchanger, wherein, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, described cold-producing medium by part in the gross area of ownership cryogen by the hole of formation be 130～510mm
2, the opening ratio of this heat exchanger is 20～75%, this opening ratio is the ratio of quantity that passes through the heat exchanger tube of the quantity in hole and each pipe group at the cold-producing medium that described cold-producing medium forms in by part.
8) paragraph 2) described in heat exchanger, wherein, described refrigerant turn tank comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with this heat exchanger tube, and described flow-dividing control plate and this second parts are integral.
9) paragraph 1) described in heat exchanger, wherein, the inside of the outlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into second space that first space that is communicated with corresponding heat exchanger tube and cold-producing medium therefrom flow out by dividing plate, described two spaces are interconnected.
10) paragraph 9) described in heat exchanger, wherein, be formed with one or at least two cold-producing mediums in the described dividing plate by the hole, described two spaces keep being communicated with by the hole by this cold-producing medium.
11) paragraph 9) described in heat exchanger, wherein, described refrigerant inlet-EXPORT CARTON comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with this heat exchanger tube, and described partition wall and described dividing plate and this second parts are integral.
12) paragraph 9) described in heat exchanger, wherein, described refrigerant inlet-EXPORT CARTON has refrigerant inlet that is communicated with described inlet header chamber and the refrigerant outlet that is communicated with second space of described outlet header chamber at the one end.
13) paragraph 1) described in heat exchanger, wherein, each pipe group comprises at least seven heat exchanger tubes.
14) a kind of kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, described evaporimeter is at paragraph 1)～13) in each described heat exchanger.
15) kind of refrigeration cycle a kind of wherein being equipped with at paragraph 14) is with the vehicle as aircondition.
16) a kind of heat exchanger, this heat exchanger comprises and is arranged to spaced refrigerant inlet-EXPORT CARTON and refrigerant turn tank, and be a plurality of pipe groups the row who arranges by compartment of terrain on the air-flow direction of heat exchanger in the form between the described case, what each pipe group was included in described case vertically goes up a plurality of heat exchanger tubes that the compartment of terrain is arranged in parallel, the opposite end of the heat exchanger tube of each pipe group joins on each case, the inside of refrigerant inlet-EXPORT CARTON is separated wall and is divided into the refrigerant inlet header chamber and the refrigerant outlet manifold chambers of arranging along air-flow direction, in described two manifold chambers each is connected with the heat exchanger tube of at least one comb group, the cold-producing medium that flows into the inlet header chamber of refrigerant inlet-EXPORT CARTON can flow into refrigerant turn tank by corresponding heat exchanger tube, change its route so that flow into the outlet header chamber of refrigerant inlet-EXPORT CARTON by corresponding heat exchanger tube at this refrigerant turn tank inner refrigerant
The inside of the inlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into second space that flows into first space and the cold-producing medium of the connection of corresponding heat exchanger tube by resistance plate, forms a cold-producing medium in the described resistance plate and passes through the hole.
17) paragraph 16) described in heat exchanger, wherein, form described cold-producing medium at the longitudinal middle part place of described resistance plate and pass through the hole.
18) paragraph 16) described in heat exchanger, wherein, described cold-producing medium by the hole between a pair of heat exchanger tube, this exchange heat pipe described refrigerant inlet-EXPORT CARTON vertically on adjacent one another are and be included among the heat exchanger tube that is communicated with the inlet header chamber of refrigerant inlet-EXPORT CARTON.
19) paragraph 16) described in heat exchanger, wherein, the area of described cold-producing medium by the hole is greater than the total cross-sectional area of the coolant channel in the heat exchanger tube.
20) paragraph 16) described in heat exchanger, wherein, described cold-producing medium is circular by the hole, and diameter is 3～8mm.
21) paragraph 16) described in heat exchanger, wherein, described refrigerant inlet-EXPORT CARTON has a wall portion, the heat exchanger tube that is communicated with described first space engages with this wall portion, and this wall portion has the by-passing parts of inwardly giving prominence to by the part of this wall portion in hole from corresponding to described cold-producing medium, so that cold-producing medium vertical shunting along described inlet header chamber when flowing through cold-producing medium by the hole is flowed.
22) paragraph 21) described in heat exchanger, wherein, described by-passing parts is a spine outstanding towards described baffle-wall with the form at angle and that extend on the width of described inlet header chamber.
23) paragraph 16) described in heat exchanger, wherein, the inside of the outlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into second space of therefrom flowing out with first space and the cold-producing medium of the connection of corresponding heat exchanger tube by dividing plate, and the formation cold-producing medium passes through the hole in described dividing plate.
24) paragraph 23) described in heat exchanger, wherein, described refrigerant inlet-EXPORT CARTON comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with heat exchanger tube, and described partition wall, described resistance plate and described dividing plate and this second parts are integral.
25) paragraph 16) described in heat exchanger, wherein, described refrigerant inlet-EXPORT CARTON has refrigerant inlet that is communicated with second space of described inlet header chamber and the refrigerant outlet that is communicated with described outlet header chamber at the one end.
26) paragraph 16) described in heat exchanger, wherein, the inside of described refrigerant turn tank is divided into first space and second space by the flow-dividing control plate, this first space is connected with the heat exchanger tube that first space with the inlet header chamber of described refrigerant inlet-EXPORT CARTON is communicated with, this second space is connected with the heat exchanger tube that is communicated with the outlet header chamber of described refrigerant inlet-EXPORT CARTON, described flow-dividing control plate along described two casees vertically have the refrigerant barrier part corresponding to the position of the cold-producing medium in the described resistance plate by the hole, this flow-dividing control plate is provided with in the position of this obstructions outside partly to have the cold-producing medium of cold-producing medium by the hole and passes through part.
27) paragraph 26) described in heat exchanger, wherein, the length of the refrigerant barrier of described flow-dividing control plate part is at least 28mm.
28) paragraph 26) described in heat exchanger, wherein, the opening ratio of this heat exchanger is 20～90%, this opening ratio is the cold-producing medium that forms in described flow-dividing control plate by the ratio of the quantity of the heat exchanger tube of the quantity in hole and each pipe group.
29) paragraph 26) described in heat exchanger, wherein, described refrigerant turn tank comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with heat exchanger tube, and described flow-dividing control plate and this second parts are integral.
30) a kind of kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, described evaporimeter is at paragraph 16)～29) in each described heat exchanger.
31) kind of refrigeration cycle a kind of wherein being equipped with at paragraph 30) is with the vehicle as aircondition.
For paragraph 1)～4) described in heat exchanger, described shunting homogenising parts are used to make cold-producing medium with uniform amount, be that even velocity flows through the heat exchanger tube that is connected with the inlet header chamber of described inlet-EXPORT CARTON, make this heat exchanger have the heat exchange performance of raising.
For paragraph 5)～7) described in heat exchanger, cold-producing medium can be measured the heat exchanger tube that is connected by with the inlet header chamber of described inlet-EXPORT CARTON uniformly, makes this heat exchanger obtain the heat exchanger effectiveness that improves.
At paragraph 8) described in the situation of heat exchanger under, the flow-dividing control plate of described refrigerant turn tank forms with second parts of being made by the aluminium extrudate.Therefore, this control panel can be arranged in this refrigerant turn tank by simple process.
For paragraph 9) and 10) described in heat exchanger, described dividing plate is used to make cold-producing medium to flow through the heat exchanger tube that is connected with the inlet header chamber of refrigerant inlet-EXPORT CARTON with uniform amount, and also flow through the heat exchanger tube that is connected with the outlet header chamber of this inlet-EXPORT CARTON, thereby can further improve the heat exchange performance of heat exchanger with uniform amount.
Because at paragraph 11) described in heat exchanger in, the partition wall of described refrigerant inlet-EXPORT CARTON and dividing plate and described second parts form, so this partition wall and dividing plate can be arranged in this inlet-EXPORT CARTON by simple process.
As paragraph 12) described in heat exchanger, promptly, have under refrigerant inlet that is communicated with the inlet header chamber and the situation of the refrigerant outlet that is communicated with second space of outlet header chamber at the one end at refrigerant inlet-EXPORT CARTON, cold-producing medium obviously flows through the heat exchanger tube of pipe group unevenly, yet even in this case, when heat exchanger has paragraph 1)～7), 9) and 10) in any one described feature the time, then can make cold-producing medium evenly flow through this heat exchanger tube.
As paragraph 13) described in heat exchanger, promptly, comprise under the situation of at least seven heat exchanger tubes in each pipe group, cold-producing medium obviously flows through the heat exchanger tube of pipe group unevenly, yet even in this case, if heat exchanger has paragraph 1)～7), 9) and 10) in any one described feature, then can make cold-producing medium evenly flow through this heat exchanger tube.
For paragraph 16) described in heat exchanger, cold-producing medium enters second space of the inlet header chamber of refrigerant inlet-EXPORT CARTON, go into first space by the independent cold-producing medium in resistance plate by orifice flow, cold-producing medium flows through all heat exchanger tubes that are connected with the inlet header chamber from this shunting ground, first space.Owing to only form a cold-producing medium in this baffle-wall by the hole,, and flow into all heat exchanger tubes so cold-producing medium slowly flows into first space so that be dispersed on the whole zone in this first space from second space.Therefore make cold-producing medium flow through the heat exchanger tube that is communicated with the inlet header chamber of inlet-EXPORT CARTON, thereby the heat exchange performance of this heat exchanger is improved with uniform amount.
For paragraph 17)～20) described in heat exchanger, make that the amount of the cold-producing medium flow through the heat exchanger tube that is communicated with the inlet header chamber of refrigerant inlet-EXPORT CARTON is more even, thereby make the heat exchanger effectiveness of this heat exchanger acquisition raising.
Paragraph 21) and 22) described in heat exchanger be suitable for making the cold-producing medium that the flows through resistance plate cold-producing medium by the hole to be dispersed in high efficiency on the whole zone in first space of inlet header chamber.Therefore, make that the uniformity coefficient of amount of the cold-producing medium flow through the heat exchanger tube that is communicated with the inlet header chamber of refrigerant inlet-EXPORT CARTON is higher, thereby make the heat exchanger effectiveness of this heat exchanger acquisition raising.
For paragraph 23) described in heat exchanger, cold-producing medium changes its route in refrigerant turn tank, flow into first space of the outlet header chamber of refrigerant inlet-EXPORT CARTON, goes into second space by the cold-producing medium of dividing plate by orifice flow.The resistance that dividing plate applies to cold-producing medium stream is used to make the shunting that flows into the heat exchanger tube that is communicated with it from first space of inlet header chamber more even, makes also that to flow into the shunting of coupled logical heat exchanger tube from refrigerant turn tank even.Thereby make cold-producing medium flow through the heat exchanger tube of all pipe groups, so that improve the heat exchange performance of this heat exchanger with uniform amount.
For paragraph 24) described in heat exchanger, partition wall, resistance plate and dividing plate and second parts form.This helps to be provided with the process of partition wall, resistance plate and dividing plate in refrigerant inlet-EXPORT CARTON.
As paragraph 25) described in heat exchanger, promptly, when refrigerant inlet-EXPORT CARTON has the refrigerant inlet that is communicated with the inlet header chamber and during with refrigerant outlet that the outlet header chamber is communicated with at the one end, cold-producing medium obviously flows through the heat exchanger tube of pipe group unevenly, yet even in this case, if heat exchanger has paragraph 16)～23) in any one described feature, then can make cold-producing medium evenly flow through this heat exchanger tube.
Paragraph 26)～28 the heat exchanger) has the refrigerant barrier part, and this refrigerant barrier part applies resistance to the cold-producing medium that flows into first space of refrigerant turn tank via the heat exchanger tube of correspondence from first space of the inlet header chamber of refrigerant inlet-EXPORT CARTON.Therefore, it is higher to flow through the uniformity coefficient of amount of cold-producing medium of the heat exchanger tube that is communicated with the inlet header chamber of inlet-EXPORT CARTON.
At paragraph 29) described in heat exchanger in, the flow-dividing control plate of refrigerant turn tank and second parts of being made by the aluminium extrudate form.Therefore, this control panel can be arranged in the steering box by easy process.
Description of drawings
Fig. 1 is the integrally-built perspective view that illustrates according to first embodiment of evaporimeter of the present invention;
Fig. 2 is a part abridged vertical cross-section diagram, and the evaporimeter of Fig. 1 when the rear portion is seen is shown;
Fig. 3 is the sectional view along the line A-A among Fig. 2;
Fig. 4 is the zoomed-in view along line B-B among Fig. 2 and cross section, part abridged;
Fig. 5 is the zoomed-in view along line C-C among Fig. 2 and cross section, part abridged;
Fig. 6 is the decomposition diagram of refrigerant inlet-EXPORT CARTON of the evaporimeter of Fig. 1;
Fig. 7 is the decomposition diagram of refrigerant turn tank of the evaporimeter of Fig. 1;
Fig. 8 illustrates the figure how cold-producing medium flows through the evaporimeter of Fig. 1;
Fig. 9 is the view corresponding to Fig. 8, and second embodiment according to evaporimeter of the present invention is shown;
Figure 10 is the view corresponding to Fig. 8, and the 3rd embodiment according to evaporimeter of the present invention is shown;
Figure 11 is the view corresponding to Fig. 8, and the 4th embodiment according to evaporimeter of the present invention is shown;
Figure 12 is the view corresponding to Fig. 8, and the 5th embodiment according to evaporimeter of the present invention is shown;
Figure 13 is the view corresponding to Fig. 2, and the 6th embodiment according to evaporimeter of the present invention is shown;
Figure 14 is the horizontal sectional view of refrigerant inlet-EXPORT CARTON, and the 7th embodiment according to evaporimeter of the present invention is shown;
Figure 15 is the zoomed-in view along line D-D among Figure 14 and cross section, part abridged;
Figure 16 is the decomposition diagram of refrigerant inlet-EXPORT CARTON of the evaporimeter of the 7th embodiment;
Figure 17 is the decomposition diagram of refrigerant turn tank of the evaporimeter of the 7th embodiment;
Figure 18 illustrates the figure how cold-producing medium flows through the evaporimeter of the 7th embodiment;
Figure 19 is the figure corresponding to Figure 18, and the 8th embodiment according to evaporimeter of the present invention is shown.
Figure 20 is the partial vertical sectional view that illustrates according to the amplification of the 9th embodiment of evaporimeter of the present invention.
The specific embodiment
Embodiments of the invention are described below with reference to accompanying drawings.These embodiment are according to evaporimeter of the present invention.
In the following description, Fig. 1,2 and 13 upside, downside, left side and right side be called as respectively " on ", D score, " left side " and " right side ", downstream by the air stream of the air between every pair of adjacent heat exchanger tube by the gap (promptly, by the arrow X indicated direction among Fig. 1, Fig. 4,5 and 15 right side) will be called as " preceding ", and its opposite side will be called as " back ".In addition, in institute's drawings attached, identical parts are indicated with identical reference number, and with no longer repeat specification.
Fig. 1～5 illustrate the overall structure as the evaporimeter of the first embodiment of the present invention, and Fig. 6 and 7 illustrates the structure of major part, and Fig. 8 illustrates the evaporimeter how cold-producing medium flows through first embodiment.
With reference to Fig. 1～3, evaporimeter 1 comprises the refrigerant inlet-EXPORT CARTON 2 that is arranged to the aluminum that perpendicular separation opens and the refrigerant turn tank 3 of aluminum; Form is the pipe group 5 of isolated many rows (being two rows in the present embodiment) on the fore-and-aft direction at evaporimeter between these two casees 2,3, the left and right directions that each pipe group is included in evaporimeter i.e. a plurality of aluminum heat exchanger tubes 4 of being arranged in parallel of compartment of terrain transversely, that is at least 7 aluminum heat exchanger tubes; The adjacent air of respectively exchanging between the heat pipe 4 that is arranged in each pipe group 5 passes through in the gap and the corrugated aluminum fin 6 of the outside of the heat exchanger tube of locating in the left side and the opposite end, right side of each pipe group 54, and each fin brazed is on the heat exchanger tube 4 that is adjacent; And the aluminum side plate 7 that is arranged on corrugated fin 6 outsides at each the end place in left end and the right-hand member.
With reference to Fig. 4～6, refrigerant inlet-EXPORT CARTON 2 comprises tabular first parts 8, and these first parts are made by the aluminium soldering sheet material that has the brazing material layer at least on its outer surface (lower surface), and engage with heat exchanger tube 4; Make and cover second parts 9 of the upside of first parts 8 by exposed aluminium extrudate; And the aluminium lid 11,12 that seals left end and right-end openings respectively.Case 2 comprises refrigerant inlet header chamber 13 that is positioned at the front side and the refrigerant outlet manifold chambers 14 that is positioned at rear side.
The cross section of second parts 9 totally is a m shape and under shed, these second parts comprise two walls of front and rear 21,22 of horizontal expansion, be arranged in the middle part between these two walls 21,22 and horizontal expansion is divided into the partition wall 23 in two spaces of front and rear with the inside with refrigerant inlet-EXPORT CARTON 2, and two be the connecting wall 24 of circular arc totally, and this connecting wall is protruding upward and partition wall 23 and front and rear wall accordingly 21,22 be connected integratedly in their upper end.Rear wall 22 and partition wall 23 pass through interconnection integratedly on the whole length of dividing plate 25 at parts 9 in their lower end.Alternatively, the plate that separates with rear wall 22 and spaced walls 23 can be fixed on these walls 22,23 as plate 25.Dividing plate 25 forms the cold-producing medium of laterally-elongated by hole 26,26A in the left part of this plate and the rear portion outside the right part, this cold-producing medium is arranged on the ground, lateral separation of this dividing plate by the hole.The length of cold-producing medium in the lateral middle of plate 25 by hole 26A is less than the interval between the adjacent heat exchange tubes 4 of rear portion pipe group 5, and is formed between adjacent two heat exchanger tubes 4 in the lateral middle of rear portion pipe group 5.Other cold-producing medium passes through the length in hole 26 greater than hole 26A.Dividing plate 25 the rear edge part of its lower surface have be integral with this dividing plate and whole length at this dividing plate on the outstanding downwards 25a of spine that extends.Front walls 21 lower edge on surface within it has the outstanding 21a of spine integratedly downwards.The lower ends downward of partition wall 23 is given prominence to the lower end that surpasses the 21a of spine, 25a, and has a plurality of protuberance 23a in the through hole 19 that is assemblied in first parts 8 integratedly, and these protuberances 23a is outstanding downwards and compartment of terrain setting in the horizontal from the lower edge of wall 23.Protuberance 23a forms by the specific part that excises partition wall 23.
Lid the 11, the 12nd, by exposed material by pressure processing, forge or be cut into, each lid has the recess along lateral inward, so that the end of the correspondence of first parts 8 and second parts 9 is assemblied in this recess.Right cap 12 has the cold-producing medium inlet opening 12a that is communicated with refrigerant inlet header chamber 13 and the cold-producing medium that is communicated with the top of the refrigerant outlet manifold chambers 14 that is positioned at dividing plate 25 tops flowed out opening 12b.Soldering has the refrigerant inlet-spout member 27 of aluminum on right cap 12, and this refrigerant inlet-spout member 27 has refrigerant inlet 27a that is communicated with cold-producing medium inlet opening 12a and the refrigerant outlet 27b that is communicated with cold-producing medium outflow opening 12b.
The mutual soldering of brazing material layer that these two parts 8,9 utilize first parts 8 together, the protuberance 23a of second parts 9 inserts the corresponding hole 19 interior formation crimping joints of first parts 8 simultaneously, and the upstanding wall 17 of first parts 8 engages with the 21a of spine, the 25a of second parts 9.Refrigerant inlet-EXPORT CARTON 2 forms 11,12 solderings of two lids by using brazing material sheet material on first parts 8 and second parts 9.Partition wall 23 part forward from second parts 9 of case 2 is used as refrigerant inlet header chamber 13, and it is used as refrigerant outlet manifold chambers 14 from partition wall 23 part backward.In addition, refrigerant outlet manifold chambers 14 is divided into upper and lower two space 14a, 14b by dividing plate 25, and these spaces 14a, 14b are communicated with by hole 26,26A by cold-producing medium.Lower space 14b is first space that is communicated with the heat exchanger tube 4 of rear portion pipe group 5, and upper space 14a is second space, and cold-producing medium flows out evaporimeter via this second space.The cold-producing medium of right cap 12 flows out opening 12b and is communicated with the upper space 14a of refrigerant outlet manifold chambers 14.
With reference to Fig. 4,5 and 7, refrigerant turn tank 3 comprises tabular first parts 28, and these first parts are made by the aluminium soldering sheet material that has the brazing material layer at least on its outer surface (upper surface), and engage with heat exchanger tube 4; Make and cover second parts 29 of the downside of first parts 28 by exposed aluminium extrudate; And the aluminium lid 31 that is used to seal the opening of opposite end, the left and right sides.Case 3 comprises that the cold-producing medium as the space that is positioned at the front side flows into manifold chambers 32 and flows out manifold chambers 33 as the cold-producing medium in the space that is positioned at rear side.
Refrigerant turn tank 3 has end face 3a, front and rear opposite flank 3b and bottom surface 3c.The cross section of the end face 3a of refrigerant turn tank 3 is circular arc on the whole, thereby the middle part of this end face on fore-and-aft direction is the highest part 34, and this highest part reduces gradually towards front side and rear side.Case 3 has groove 35 in opposite side portion before and after it, and this groove 35 extends to front and rear opposite flank 3b from the front and rear opposite side of the highest part 34 of end face 3a respectively, and the compartment of terrain is arranged in the horizontal.Each groove 35 has flat bottom surface.Each groove 35 has the 35a of first, and the end face 3a that this first is positioned at case 3 goes up and have the identical degree of depth on the whole length of this part.Limit groove 35 the 35a of first the opposite flank along case 3 laterally away from each other upwards towards outer incline, and the width of the 35a of first of groove 35 increases towards its opening gradually from the bottom of groove.In addition, on the longitudinal cross-section of each groove 35, the shape of the bottom surface of the 35a of first forms from the highest part 34 1 sides of case end face 3a and extends outwardly forward or backward and the circular arc of decurvation.
First parts 28 have the middle part circular cross-section protruding upward on its fore-and-aft direction, and in its front and rear side each the place with this side be integrally formed into vertical wall (dependingwall) 28a, this vertical wall 28a extends on the whole length of first parts 28.The end face of first parts 28 is as the end face 3a of refrigerant turn tank 3, and the outer surface of the wall 28a that hangs down is as the front portion or the rear side 3b of case 3.All form groove 35 in the front and back sidepiece of first parts 28 each, the highest part 34 at the middle part of this groove from the fore-and-aft direction of parts 28 extends to the lower end of the wall 28a that hangs down.In in the front and back sidepiece the highest part 34 in its middle part of first parts 28 each, between adjacent each is to groove 35, be formed on pipe interpolation slit 36 elongated on the fore-and-aft direction.Every pair of corresponding front and rear pipe interpolation slit 36 is in same position in the horizontal.Form a plurality of through holes 37 in the highest part 34 of first parts 28 in the middle, this through hole compartment of terrain is in the horizontal arranged.By utilizing pressure processing to make first parts 28, form vertical wall 28a, groove 35, pipe interpolation slit 36 and the through hole 37 of first parts 28 simultaneously with the aluminum brazing sheet.
The cross section of second parts 29 totally is w shape and upward opening, these second parts comprise respectively forward and backward outwardly and two walls of the front and rear of bending up and horizontal expansion 38,39, the inside of refrigerant turn tank 3 is divided into the vertical partition wall 41 in two spaces of front and rear, and two connecting walls 42 that this partition wall 41 and corresponding front walls 38 and rear wall 39 are connected integratedly in their lower end.The outer surface of connecting wall 42 forms the bottom surface 3c of case 3, and the outer surface of front walls 38 and rear wall 39 forms the junction surface 3e of bottom surface 3c and front portion or rear side 3b respectively.Front walls 38 and rear wall 39 have the 38a of spine, the 39a that inward flange from its upper end projects upwards and extends respectively on the whole length of this wall.
The upper end of partition wall 41 projects upwards the upper end above front walls 38 and rear wall 39, and this partition wall 41 has a plurality of protuberance 41a that project upwards from the top edge of this wall 41, this protuberance and this wall is integral and in the horizontal the compartment of terrain be provided with, and will be assemblied in the corresponding through hole 37 of first parts 28.Inherent adjacent each of the top edge of inherent this wall 41 of the part that partition wall 41 is taken back in the middle slightly passed through otch 41b to forming cold-producing medium between the protuberance 41a.Protuberance 41a and otch 41b form by the specific part of excision partition wall 41.
The lid 31 by exposed material by pressure processing, forge or be cut into, each lid has the recess along lateral inward, so that the end of the correspondence of first parts 28 and second parts 29 is assemblied in this recess.
First parts 28 utilize the mutual soldering of brazing material layer of first parts 28 to be in the same place with second parts 29, the protuberance 41a of second parts 29 inserts and forms the crimping joint in the corresponding hole 37 simultaneously, and the vertical wall 28a of first parts 28 engages with the 38a of spine, the 39a of second parts 29.Utilize the soldering of brazing material sheet material on first parts 28 and second parts 29 on these two lids 31 then, thereby form refrigerant turn tank 3.The upper end open of otch 41b in the partition wall 41 of second parts 29 is passed through hole 43 with 28 sealings of first parts thereby form cold-producing medium.The cold-producing medium that forms by the upper end open with the otch 41b in first parts, the 28 sealing partition walls 41 also can be the through hole that forms in partition wall 41 by hole 43.The partition wall 41 of second parts 29 is as flow-dividing control plate 44, this flow-dividing control plate has cold-producing medium by hole 43, and as refrigerant turn tank 3 being divided into the homogenising parts that the cold-producing medium that is positioned at the front side flows into manifold chambers 32 and is positioned at the cold-producing medium outflow manifold chambers 33 of rear side, so that cold-producing medium evenly flows with shunting.
Flow-dividing control plate 44 has at its left side and right side opposed end and does not have each refrigerant barrier part 45A, the 45B of cold-producing medium by hole 43, and each blocks part and all extends the length of being scheduled in the corresponding end of slave plate 44.Blocking between part 45A, the 45B, plate 44 has cold-producing medium by part 46, and this cold-producing medium has one or at least two cold-producing mediums by hole 43 (passing through hole 43 at least two cold-producing mediums in this embodiment) by part 46.Greater than the length at the obstruction part 45A in left side, and approximately is half of whole length of control panel 44 in the length of the obstruction part 45B on right side.Wish each length of blocking part 45A, 45B be at least control panel 44 whole length 15%, and cold-producing medium by part 46 in the gross area of ownership cryogen by hole 43 of formation be 130～510mm
2Preferably, the maximum length of each refrigerant barrier part 45A, 45B is defined as 78% of the whole length that is not more than control panel 44.Cold-producing medium is by the quantity of the cold-producing medium in the part 46 by hole 43 and the ratio of the quantity of the heat exchanger tube 4 of each pipe group 5, and promptly the opening ratio is preferably 20～75%.If it is may not can even fully that each length of blocking part 45A or 45B, then flows through the flow of cold-producing medium of all heat exchanger tubes 4 of each pipe group less than 15% of the whole length of flow-dividing control plate 44.In addition, if cold-producing medium passes through the gross area in hole 43 less than 130mm by the ownership cryogen in the part 46
2, then will increase channel resistance greatly, cause performance to be adversely affected, and if the gross area surpasses 510mm
2, then control panel 44 may not play the flow-dividing control function.If the opening ratio, promptly cold-producing medium is by the quantity of the cold-producing medium in the part 46 by hole 43 and the ratio of the quantity of the heat exchanger tube 4 of each pipe group 5, and less than 20%, then channel resistance can increase greatly, makes performance be adversely affected.If this ratio surpasses 75%, then may not realize the flow-dividing control function.
The heat exchanger tube 4 that forms front and rear pipe group 5 is that the exposed material of aluminium extrudate is made by form.Each pipe 4 is flat, have big width along fore-and-aft direction, and portion has along the longitudinal extension of this pipe and a plurality of coolant channel 4a that are arranged in parallel within it.The form of the front and rear opposite end walls of pipe 4 is the circular arc of outside protrusion.The heat exchanger tube 4 of every pair of corresponding anterior pipe group 5 and the heat exchanger tube 4 of rear portion pipe group 5 are in same position in the horizontal.The upper end of each heat exchanger tube 4 insert in the pipe interpolation slit 16 of first parts 8 of this inlet-EXPORT CARTON 2 and the brazing material layer soldering that utilizes first parts 8 on these parts 8, the lower end of each heat exchanger tube 4 insert in the pipe interpolation slit 36 of first parts 28 of steering box 3 and the brazing material layer soldering that utilize first parts 28 on these parts 28.
Preferably, the height of heat exchanger tube 4, promptly thickness in a lateral direction is 0.75～1.5mm, width on fore-and-aft direction is 12～18mm, the wall thickness of its circumferential wall is 0.175～0.275mm, with the thickness of coolant channel 4a partition wall spaced apart from each other is 0.175～0.275mm, and the spacing of partition wall is 0.5～3.0mm, and the radius of curvature of the outer surface of front and rear opposite end walls is 0.35～0.75mm.
Can use such aluminum electrical resistance welding tube to replace the heat exchanger tube of making by the aluminium extrudate 4, in this pipe, form a plurality of coolant channels by inner fins being inserted in the pipe.Also can use the pipe of making by such plate, this plate is by rolling processing and preparing by the aluminium soldering sheet material that has the aluminium soldering material layer on its opposite flank, and this plate comprises that two flat wall that engage by the coupling part form part, form the outstanding sidewall formation part of a side relative that is integral and forms part with this flat wall formation part that forms on the part with this coupling part from this flat wall in each flat wall, and form outstanding being integral with it and the compartment of terrain is arranged on its width a plurality of parts that are separated to form of part from each flat wall, this pipe is by in the coupling part this plate being bent to hair clip shape, and with sidewall form part with the mutual soldering of opposite joining relation together to form by being separated to form part that partition wall makes.The corrugated fin of Shi Yonging is the fin of being made by exposed material in the case.
By with the combined and tack of above-mentioned parts together and the assembly of common soldering institute tack make evaporimeter 1.
With reference to Fig. 8 of described evaporimeter 1 is shown, the solution-air that flows through compressor, condenser and decompressor is mixed mutually two-layer cold-producing medium enters refrigerant inlet-EXPORT CARTON 2 via the cold-producing medium inlet opening 12a of the refrigerant inlet 27a of refrigerant inlet-spout member 27 and right cap 12 refrigerant inlet header chamber 13.
The cold-producing medium that enters this inlet header chamber 13 is tending towards easily flowing into the heat exchanger tube 4 of the left side and the opposite end, right side of more close anterior pipe group 5, yet because the flow-dividing control plate 44 of refrigerant turn tank 3 has refrigerant barrier part 45A, 45B in its opposite end, these block part the cold-producing medium of heat exchanger tube 4 that will be by more close left end and right-hand member are applied resistance, thereby make cold-producing medium can evenly dividedly flow into pipe 4, flow down along the coolant channel 4a in this pipe, and enter the cold-producing medium inflow manifold chambers 32 of refrigerant turn tank 3.
Cold-producing medium passes through the cold-producing medium of part 46 by hole 43 inflow cold-producing mediums outflow manifold chambers 33 by cold-producing medium then, dividedly flow into the coolant channel 4a of all heat exchanger tubes 4 of rear portion pipe group 5, change its route, and upwards enter the lower space 14b of the refrigerant outlet manifold chambers 14 of refrigerant inlet-EXPORT CARTON 2 by passage 4a.Be arranged on dividing plate 25 in the outlet header chamber 14 to the mobile resistance that applies of cold-producing medium, thus make cold-producing medium can evenly shunt flow into the pipe 4 of rear portion pipe groups 5 from flowing out manifold chambers 33, and from the inlet header chamber 13 pipes 4 that flow into anterior pipe group 5.As a result, cold-producing medium flows through the heat exchanger tube 4 of two pipe groups with uniform amount.
Subsequently, the cold-producing medium that cold-producing medium passes through dividing plate 25 flows into the upper space 14a of outlet header chamber 14 by hole 26,26A, and flows out the outlet 27b outflow evaporimeter of opening 12b and refrigerant inlet-spout member 27 via the cold-producing medium of lid 12.When the coolant channel 4a of the heat exchanger tube 4 of the coolant channel 4a of the heat exchanger tube 4 that flows through anterior pipe group 5 and rear portion pipe group 5, cold-producing medium with flow through the air of air along the direction of the arrow X shown in Fig. 1 and carry out heat exchange by the gap, and flow out evaporimeter with gas phase.
At this moment, on the surface of corrugated fin 6, generate condensed water, and this condensed water flows to the end face 3a of steering box 3 downwards.The condensed water that flows to case end face 3a downwards flows through groove 35 and falls steering box 3 belows from the lower end of groove third part 35c owing to capillary effect enters the 35a of first of groove 35.Can prevent that so a large amount of condensed waters from accumulating between the lower end of the end face 3a of steering box 3 and corrugated fin 6, thereby prevent to cause condensate freezes that device 1 inefficiency thus avoids evaporating owing to the gathering of a large amount of condensed waters.
According to first embodiment, flow-dividing control plate 44 has cold-producing medium by hole 43, and refrigerant turn tank 3 is divided into the cold-producing medium that the cold-producing medium that is positioned at the front side flows into manifold chambers 32 and be positioned at rear side flows out manifold chambers 33, with homogenising parts as the heat exchanger tube 4 of the front portion pipe group 5 that cold-producing medium is evenly flow through with shunting be communicated with inlet header chamber 13.Yet this structure is not restrictive, but modification suitably.
Fig. 9 illustrates second embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 9, flow-dividing control plate 44 in the refrigerant turn tank 3 has the cold-producing medium that is positioned at its lateral middle and passes through part 46, and the left side and right side and length refrigerant barrier part 45A, the 45B about equally that are separately positioned on this part 46.Block the ratio of the whole length of the length of part 45A, 45B and control panel 44 for each, the ownership cryogen that forms in cold-producing medium passes through part 46 is by the gross area in hole 43, and opening ratio, promptly, pass through the ratio of the quantity of the quantity in hole 43 and the heat exchanger tube 4 in each pipe group 5 at cold-producing medium by the cold-producing medium that forms in the part 46, this embodiment is identical with first embodiment.The dividing plate 25 of refrigerant inlet-EXPORT CARTON 2 has the cold-producing medium of a plurality of laterally-elongated of compartment of terrain in the horizontal arranging by hole 50, and what this cold-producing medium through hole was formed at this dividing plate blocks the part place of part 45A, 45B corresponding to each of flow-dividing control plate 44.Ownership cryogen is identical by the length in hole 50.Except these features, second embodiment is identical with first embodiment.
Second embodiment also is suitable for making the cold-producing medium that flows through evaporimeter to flow through the heat exchanger tube 4 of each pipe group with uniform amount.
Figure 10 illustrates the 3rd embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 10, flow-dividing control plates 44 in the refrigerant turn tank 3 have the cold-producing medium of being longer than first embodiment slightly by part and be positioned at cold-producing medium that its lateral middle takes back by part 46, and the refrigerant barrier part 45A, the 45B that are separately positioned on the left side and the right side of this part 46.Greater than the length at the obstruction part 45A in left side, and approximately is half of whole length of control panel 44 in the length of the obstruction part 45B on right side.Block the ratio of the whole length of the length of part 45A, 45B and control panel 44 for each, the ownership cryogen that forms in cold-producing medium passes through part 46 is by the gross area in hole 43, and opening ratio, promptly, pass through the ratio of the quantity of the quantity in hole 43 and the heat exchanger tube 4 in each pipe group 5 at cold-producing medium by the cold-producing medium that forms in the part 46, this embodiment is identical with first embodiment.The dividing plate 25 of refrigerant inlet-EXPORT CARTON 2 passes through hole 51 at the cold-producing medium that its part corresponding to left side obstruction part 45A of control panel 44 forms a laterally-elongated, and being formed on transversely in its part corresponding to right side obstruction part 45B, the cold-producing medium of a plurality of laterally-elongated of compartment of terrain layout passes through hole 51.Ownership cryogen is identical by the length in hole 51.Except these features, the 3rd embodiment is identical with first embodiment.
The 3rd embodiment also is suitable for making the cold-producing medium that flows through evaporimeter to flow through the heat exchanger tube 4 of each pipe group with uniform amount.
Figure 11 illustrates the 4th embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 11, at least one in two refrigerant barrier part 45A, 45B of flow-dividing control plate 44 in the refrigerant turn tank 3 (according to present embodiment block part 45A, 45B each in) form auxiliary refrigerant by hole 60.Except this feature, the 4th embodiment is identical with first embodiment.Equally, in the second and the 3rd embodiment, also can block and form auxiliary refrigerant at least one of part 45A, 45B and pass through the hole at two.
The 4th embodiment also is suitable for making the cold-producing medium that flows through evaporimeter to flow through the heat exchanger tube 4 of each pipe group with uniform amount.
Figure 12 illustrates the 5th embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 12, evaporimeter 61 has refrigerant inlet-EXPORT CARTON 2 and refrigerant turn tank 3, and the distance that these two casees extend to the right is greater than first embodiment.The form that is provided with between extension 2A, the 3A is front and back two row's a pipe group 5, and each pipe group is included in a plurality of heat exchanger tubes that compartment of terrain in a lateral direction is arranged in parallel.The heat exchanger tube 4 of front and rear pipe group 5 joins the corresponding front and back opposite side portion of the extension 2A of case 2 in the upper end of this pipe, and joins the corresponding front and back opposite side portion of the extension 3A of case 3 in the lower end of pipe.
The outlet header chamber 14 of refrigerant inlet-EXPORT CARTON 2 does not have dividing plate.The extension 2A of case 2 has not to be had the cold-producing medium inlet opening and does not have cold-producing medium to flow out the right-end openings of the lid (not shown) sealing of opening.Two manifold chambers 32,33 of refrigerant turn tank 3 are separated by extension 32A, the 33A of dividing plate 62 with these chambers 32,33.The extension 3A of case 3 has and is had the right-end openings that cold-producing medium inlet opening and cold-producing medium flow out the lid (not shown) sealing of opening.Have the refrigerant inlet that is communicated with this inlet opening and cover at this with the refrigerant inlet-spout member (not shown) soldering of the refrigerant outlet of this outflow open communication.Except these features, the 5th embodiment is identical with first embodiment.First to fourth embodiment also can have the structure identical with the 5th embodiment.
The solution-air mixing two-layer cold-producing medium mutually that flows through compressor, condenser and decompressor enters evaporimeter 61, more specifically, enter the extension 32A of the cold-producing medium inflow manifold chambers 32 of refrigerant turn tank 3 via the refrigerant inlet of refrigerant inlet-spout member and the cold-producing medium inlet opening of right cap.
The cold-producing medium that enters extension 32A upwards flows through the coolant channel 4a of the heat exchanger tube 4 of the front portion pipe group 5 that joins on the extension 3A, flows into refrigerant inlet header chamber 13 and flows through this chamber 13 left.As the situation of first embodiment, cold-producing medium evenly dividedly flows into the heat exchanger tube 4 of anterior pipe group 5 then, and edge coolant channel 4a wherein flows downward, and enters the cold-producing medium inflow manifold chambers 32 of refrigerant turn tank 3.
Cold-producing medium passes through the cold-producing medium of part 46 by hole 43 inflow cold-producing mediums outflow manifold chambers 33 by cold-producing medium then, dividedly flow into the coolant channel 4a of all heat exchanger tubes 4 of rear portion pipe group 5, change its route, and upwards enter the refrigerant outlet manifold chambers 14 of refrigerant inlet-EXPORT CARTON 2 by passage 4a.Subsequently, cold-producing medium flows through outlet header chamber 14 to the right, enter the passage 4a of the heat exchanger tube 4 of the rear portion pipe group 5 that joins on the extension 2A, flow into the extension 33A of the outflow manifold chambers 33 of steering box 3 downwards along passage 4a, and flow out the outlet outflow evaporimeter of opening and inlet-spout member by the cold-producing medium of lid.
The 5th embodiment also is suitable for making the cold-producing medium that flows through evaporimeter to flow through the heat exchanger tube 4 of each pipe group with uniform amount.
Figure 13 illustrates the 6th embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 13, the cold-producing medium that forms in flow-dividing control plate 44 is positioned to depart from heat exchanger tube 4 by hole 43.More particularly, each cold-producing medium passes through hole 43 between a pair of adjacent heat exchanger tube 4.Except this feature, the 6th embodiment is identical with first embodiment.Explanation in passing, second to the 5th embodiment also can have the structure identical with the 6th embodiment.
Figure 14～18 illustrate the 7th embodiment according to evaporimeter of the present invention.
Under the situation of the embodiment shown in Figure 14～18, the front walls 21 of second parts 9 of refrigerant inlet-EXPORT CARTON 2 and partition wall 23 link together on by the whole length of resistance plate 70 at this case in their lower end.Baffle-wall 70 forms a cold-producing medium by circular hole 71 in its lateral middle.Alternatively, baffle-wall 70 can be to separate with front walls 21 and partition wall 23 and be fixed on plate on front walls 21, rear wall 22 and the partition wall 23.Refrigerant inlet header chamber 13 is divided into upper and lower two space 13a, 13b by baffle-wall 70, and these two spaces keep being interconnected by circular hole 71.Lower space 13b is first space that is communicated with the heat exchanger tube 4 of front portion pipe group 5, and upper space 13a is used for second space that cold-producing medium flows into.The cold-producing medium inlet opening 12a of right cap 12 is communicated with the upper space 13a of inlet header chamber 13.
The cold-producing medium of resistance plate 70 is by between two heat exchanger tubes 4 of circular hole 71 in the transverse center of front portion pipe group 5.The lateral dimension of circular hole 71 (diameter) is less than the interval between these two pipes 4.Preferably, the diameter in hole 71 is 3～8mm.If the diameter in hole 71 is less than 3mm, then the channel resistance that applies to cold-producing medium increases, and the load of aircondition system burden is increased, simultaneously because flow velocity increases the bigger noise of mobile generation that makes cold-producing medium.If the diameter in hole 71 surpasses 8mm, the amount that then flows through the cold-producing medium at this middle part increases, and then the distribution (below will illustrate) of cold-producing medium on the whole zone of the lower space 13b of inlet header chamber 13 met difficulty.Cold-producing medium passes through the total cross-sectional area of the area of circular hole 71 greater than the coolant channel of a heat exchanger tube 4.The cold-producing medium that will form in resistance plate 70 is not limited to circle by the hole, but can have the shape of appropriate change, for example oval (be not limited to the ellipse of mathematical definition, but can comprise the shape of sub-elliptical).Even when the shape of cold-producing medium by the hole was not circle, this hole also should have above-mentioned area, and size forms between two heat exchanger tubes in the lateral middle that can be positioned on pipe group 5.
With reference to Figure 17, the flow-dividing control plate 44 of refrigerant turn tank 3 has and does not have the refrigerant barrier part 72 of cold-producing medium by the hole, this obstruction part is formed at the longitudinal middle part of this control panel 44,, passes through the position of circular hole 71 corresponding to the cold-producing medium of the resistance plate 70 of inlet-EXPORT CARTON 2 that is.Control panel 44 also has cold-producing medium by part 73, should form on the left side of blocking part 72 and in the right side each by part 73, and have one or at least two cold-producing mediums by hole 43 (being at least two holes 43 in present embodiment).Preferably, block part 72 length in a lateral direction and be at least 28mm.If, then flowing through the amount of the cold-producing medium at this middle part less than 28mm, this length may increase.In addition, preferably, each cold-producing medium is by the quantity of the cold-producing mediums in the part 73 by hole 43 and the ratio of the quantity of the heat exchanger tube 4 of each pipe group 5, and promptly the opening ratio is 20～90%.If this ratio is less than 20%, then the channel resistance that applies to cold-producing medium increases, and may cause performance to reduce.When this ratio surpasses 90%, may not realize the flow-dividing control function.
Except above-mentioned feature, the 7th embodiment is identical with first embodiment.
With reference to Figure 18 that the evaporimeter 1 of the 7th embodiment is shown, the solution-air that flows through compressor, condenser and decompressor is mixed mutually two-layer cold-producing medium enters the refrigerant inlet header chamber 13 of refrigerant inlet-EXPORT CARTON 2 via the cold-producing medium inlet opening 12a of the refrigerant inlet 27a of refrigerant inlet-spout member 27 and right cap 12 upper space 13a, flow into lower space 13b by the single circular hole in the resistance plate 70 71, and further dividedly flow into the coolant channel 4a of all heat exchanger tubes 4 of anterior pipe group 5 from lower space 13b.Owing to only form an independent cold-producing medium in the baffle-wall 70 by circular hole 71,, on the whole zone of this space 13b, scatter to flow into the coolant channel 4a of all heat exchanger tubes 4 so cold-producing medium slowly flows into lower space 13b.This makes cold-producing medium to measure uniformly to flow through these pipes 4.
The cold-producing medium that flows into the passage 4a of all heat exchanger tubes 4 flows into manifold chambers 32 along the cold-producing medium that passage 4a flows into refrigerant turn tank 3 downwards.The cold-producing medium of inlet chamber 32 flows left and to the right outwardly owing to the effect of blocking part 72, and by the hole 43 inflow cold-producing mediums outflow manifold chambers 33 of cold-producing medium by part 73.Block the passage 4a that is positioned near the heat exchanger tube 4 the circular hole 71 that resistance that part 73 applies to cold-producing medium stream prevents from only to flow into from the cold-producing medium that the lower space 13b of manifold chambers 13 flows out anterior pipe group 5, but impel cold-producing medium to flow into the passage 4a of other heat exchanger tube.Therefore, can make cold-producing medium flow through the heat exchanger tube 4 of anterior pipe group 5 with uniform amount.
The cold-producing medium that flows into this outflow manifold chambers 33 dividedly flows into the coolant channel 4a of all heat exchanger tubes 4 of rear portion pipe group 5, changes its route, and upwards enters the lower space 14b of the refrigerant outlet manifold chambers 14 of refrigerant inlet-EXPORT CARTON 2 by passage 4a.Dividing plates 25 in the chamber 14 apply resistance to cold-producing medium stream, thus make cold-producing medium can evenly shunt flow into the pipe 4 of rear portion pipe groups 5 and the heat exchanger tube 4 that flows into anterior pipe group 5 from the lower space 13b of inlet header chamber 13 from flowing out manifold chambers 33.As a result, cold-producing medium flows through the heat exchanger tube 4 of these two pipe groups with uniform amount.
Subsequently, the cold-producing medium that cold-producing medium passes through dividing plate 25 flows into the upper space 14a of outlet header chamber 14 by hole 26,26A, and flows out the outlet 27b outflow evaporimeter of opening 12b and refrigerant inlet-spout member 27 via the cold-producing medium of lid 12.When the coolant channel 4a of the heat exchanger tube 4 of the coolant channel 4a of the heat exchanger tube 4 that flows through anterior pipe group 5 and rear portion pipe group 5, cold-producing medium with flow through the air of air along the direction of the arrow X shown in Fig. 1 and carry out heat exchange by the gap, and flow out evaporimeter with gas phase.
Figure 19 illustrates the 8th embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 19, the dividing plate 25 of refrigerant inlet-EXPORT CARTON 2 has the cold-producing medium of a plurality of laterally-elongated by hole 26, these holes compartment of terrain are in a lateral direction arranged, and are formed on each cold-producing medium each part by part 73 corresponding to flow-dividing control plate 44 of this dividing plate.Ownership cryogen is identical by the length in hole 26.Except this feature, the 8th embodiment is identical with the 7th embodiment.
The 8th embodiment also is suitable for making the cold-producing medium that flows through evaporimeter to flow through the heat exchanger tube 4 of each pipe group with uniform amount.
Figure 20 illustrates the 9th embodiment according to evaporimeter of the present invention.
Under the situation of embodiment shown in Figure 20, it is the spine that projects upwards 75 of the form at angle that first parts 8 of refrigerant inlet-EXPORT CARTON 2 have in the cross section, this spine extends forward or backward, and be positioned at the horizontal direction of cold-producing medium by circular hole 71 the center under the lateral middle place of these parts 8.Spine 75 becomes to give prominence to spine and forms by first parts 8 are bent upwards.Spine 75 preferably equals the diameter (size on fore-and-aft direction) of circular hole 71 at least in the length on the fore-and-aft direction.Spine 75 is by-passing parts, by this spine, is separated left and to the right in the 13b of space by the cold-producing medium that circular hole 71 flows into lower space 13b from the upper space 13a of inlet header chamber 13.Explanation forms spine 75 when making first parts 8 by pressure processing by the aluminum brazing sheet in passing.This spine can be by on the upper surface that independent parts is fixed on first parts 8 rather than be bent upwards first parts 8 and form.
Except above-mentioned feature, the 9th embodiment is identical with the 7th embodiment.
In all the foregoing descriptions, between the front portion of two casees 2,3 and rear portion, a pipe group 5 is set all, but this structure not restrictive; Can between the front portion of case 2,3 and rear portion, one or at least two pipe groups 5 be set.In addition, in all the foregoing descriptions, the highest part 34 is positioned at the center on the fore-and-aft direction of refrigerant turn tank 3, yet this layout is not restrictive; This highest part can be positioned to this middle part away from case 3.In the case, in that front side and each place in the rear side of the highest part can be provided with one or at least two pipe groups.Although according to all the foregoing descriptions, refrigerant inlet-EXPORT CARTON 2 is positioned at refrigerant turn tank 3 tops that are in lower position, also can use this evaporimeter reversedly, makes steering box 3 be positioned at inlet-EXPORT CARTON 2 tops.
Industrial applicibility
Heat exchanger of the present invention is suitable for use as the evaporimeter of automotive air conditioning device, and is suitable for having and carries High heat exchange performance.
Claims (31)
1. heat exchanger, this heat exchanger comprises and is arranged to spaced refrigerant inlet-EXPORT CARTON and refrigerant turn tank, and be a plurality of pipe groups the row who arranges by compartment of terrain on the air-flow direction of heat exchanger in the form between the described case, what each pipe group was included in described case vertically goes up a plurality of heat exchanger tubes that the compartment of terrain is arranged in parallel, the opposite end of the heat exchanger tube of each pipe group joins on each case, the inside of refrigerant inlet-EXPORT CARTON is separated wall and is divided into the refrigerant inlet header chamber and the refrigerant outlet manifold chambers of arranging along air-flow direction, in described two manifold chambers each is connected with the heat exchanger tube of at least one comb group, the cold-producing medium that flows into the inlet header chamber of refrigerant inlet-EXPORT CARTON can flow into refrigerant turn tank by corresponding heat exchanger tube, change its route so that flow into the outlet header chamber of refrigerant inlet-EXPORT CARTON by corresponding heat exchanger tube at this refrigerant turn tank inner refrigerant
Described refrigerant turn tank has and is used to make cold-producing medium to flow into the homogenising parts of the heat exchanger tube that is communicated with this inlet header chamber from described inlet header chamber with evenly shunting.
2. heat exchanger according to claim 1, it is characterized in that, described homogenising parts comprise that the inside with described refrigerant turn tank is divided into along the flow-dividing control plate in two spaces that air-flow direction is arranged, described two spaces are interconnected, the heat exchanger tube that is communicated with the inlet header chamber is communicated with one of them space of refrigerant turn tank, and the heat exchanger tube that is communicated with the outlet header chamber is communicated with another space of refrigerant turn tank.
3. heat exchanger according to claim 2 is characterized in that, is formed with one or at least two cold-producing mediums in the described flow-dividing control plate by the hole, and described two spaces keep being communicated with by the hole by this cold-producing medium.
4. heat exchanger according to claim 3 is characterized in that, cold-producing medium passes through the hole with the cold-producing medium that the relation with the mobile adverse current of air flows through in the described flow-dividing control plate.
5. heat exchanger according to claim 3, it is characterized in that, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, described cold-producing medium by part in the gross area of ownership cryogen by the hole of formation be 130～510mm
2
6. heat exchanger according to claim 3, it is characterized in that, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, the opening ratio of this heat exchanger is 20～75%, and this opening ratio is the ratio of quantity that passes through the heat exchanger tube of the quantity in hole and each pipe group at the cold-producing medium that described cold-producing medium forms in by part.
7. heat exchanger according to claim 3, it is characterized in that, described flow-dividing control plate has two refrigerant barrier parts at its each opposed end place, and between these two refrigerant barrier parts, have a cold-producing medium and pass through part, this cold-producing medium has one or at least two cold-producing mediums by part and passes through the hole, the length of each refrigerant barrier part be at least the flow-dividing control plate whole length 15%, described cold-producing medium by part in the gross area of ownership cryogen by the hole of formation be 130～510mm
2, the opening ratio of this heat exchanger is 20～75%, this opening ratio is the ratio of quantity that passes through the heat exchanger tube of the quantity in hole and each pipe group at the cold-producing medium that described cold-producing medium forms in by part.
8. heat exchanger according to claim 2, it is characterized in that, described refrigerant turn tank comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with this heat exchanger tube, and described flow-dividing control plate and this second parts are integral.
9. heat exchanger according to claim 1, it is characterized in that, the inside of the outlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into second space of therefrom flowing out with first space and the cold-producing medium of the connection of corresponding heat exchanger tube by dividing plate, and described two spaces are interconnected.
10. heat exchanger according to claim 9 is characterized in that, is formed with one or at least two cold-producing mediums in the described dividing plate by the hole, and described two spaces keep being communicated with by the hole by this cold-producing medium.
11. heat exchanger according to claim 9, it is characterized in that, described refrigerant inlet-EXPORT CARTON comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with this heat exchanger tube, and described partition wall and described dividing plate and this second parts are integral.
12. heat exchanger according to claim 9 is characterized in that, described refrigerant inlet-EXPORT CARTON has refrigerant inlet that is communicated with described inlet header chamber and the refrigerant outlet that is communicated with second space of described outlet header chamber at the one end.
13. heat exchanger according to claim 1 is characterized in that, each pipe group comprises at least seven heat exchanger tubes.
14. a kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, described evaporimeter are according to each heat exchanger in the claim 1～13.
15. one kind wherein is equipped with kind of refrigeration cycle according to claim 14 with the vehicle as aircondition.
16. heat exchanger, this heat exchanger comprises and is arranged to spaced refrigerant inlet-EXPORT CARTON and refrigerant turn tank, and be a plurality of pipe groups the row who arranges by compartment of terrain on the air-flow direction of heat exchanger in the form between the described case, what each pipe group was included in described case vertically goes up a plurality of heat exchanger tubes that the compartment of terrain is arranged in parallel, the opposite end of the heat exchanger tube of each pipe group joins on each case, the inside of refrigerant inlet-EXPORT CARTON is separated wall and is divided into the refrigerant inlet header chamber and the refrigerant outlet manifold chambers of arranging along air-flow direction, in described two manifold chambers each is connected with the heat exchanger tube of at least one comb group, the cold-producing medium that flows into the inlet header chamber of refrigerant inlet-EXPORT CARTON can flow into refrigerant turn tank by corresponding heat exchanger tube, change its route so that flow into the outlet header chamber of refrigerant inlet-EXPORT CARTON by corresponding heat exchanger tube at this refrigerant turn tank inner refrigerant
The inside of the inlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into first space that is communicated with corresponding heat exchanger tube and is used for second space that cold-producing medium flows into by resistance plate, forms a cold-producing medium in the described resistance plate and passes through the hole.
17. heat exchanger according to claim 16 is characterized in that, forms described cold-producing medium at the longitudinal middle part place of described resistance plate and passes through the hole.
18. heat exchanger according to claim 16, it is characterized in that, described cold-producing medium by the hole between a pair of heat exchanger tube, this exchange heat pipe described refrigerant inlet-EXPORT CARTON vertically on adjacent one another are and be included among the heat exchanger tube that is communicated with the inlet header chamber of refrigerant inlet-EXPORT CARTON.
19. heat exchanger according to claim 16 is characterized in that, described cold-producing medium passes through the total cross-sectional area of the area in hole greater than the coolant channel in the heat exchanger tube.
20. heat exchanger according to claim 16 is characterized in that, described cold-producing medium is circular by the hole, and diameter is 3～8mm.
21. heat exchanger according to claim 16, it is characterized in that, described refrigerant inlet-EXPORT CARTON has a wall portion, the heat exchanger tube that is communicated with described first space engages with this wall portion, and this wall portion has the by-passing parts of inwardly giving prominence to by the part of this wall portion in hole from corresponding to described cold-producing medium, so that cold-producing medium vertical shunting along described inlet header chamber when flowing through cold-producing medium by the hole is flowed.
22. heat exchanger according to claim 21 is characterized in that, described by-passing parts is a spine outstanding towards described baffle-wall with the form at angle and that extend on the width of described inlet header chamber.
23. heat exchanger according to claim 16, it is characterized in that, the inside of the outlet header chamber of described refrigerant inlet-EXPORT CARTON is divided into second space of therefrom flowing out with first space and the cold-producing medium of the connection of corresponding heat exchanger tube by dividing plate, and the formation cold-producing medium passes through the hole in described dividing plate.
24. heat exchanger according to claim 23, it is characterized in that, described refrigerant inlet-EXPORT CARTON comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with heat exchanger tube, and described partition wall, described resistance plate and described dividing plate and this second parts are integral.
25. heat exchanger according to claim 16 is characterized in that, described refrigerant inlet-EXPORT CARTON has refrigerant inlet that is communicated with second space of described inlet header chamber and the refrigerant outlet that is communicated with described outlet header chamber at the one end.
26. heat exchanger according to claim 16, it is characterized in that, the inside of described refrigerant turn tank is divided into first space and second space by the flow-dividing control plate, this first space is connected with the heat exchanger tube that first space with the inlet header chamber of described refrigerant inlet-EXPORT CARTON is communicated with, this second space is connected with the heat exchanger tube that is communicated with the outlet header chamber of described refrigerant inlet-EXPORT CARTON, described flow-dividing control plate along described two casees vertically have the refrigerant barrier part corresponding to the position of the cold-producing medium in the described resistance plate by the hole, this flow-dividing control plate is provided with in the position of this obstructions outside partly to have the cold-producing medium of cold-producing medium by the hole and passes through part.
27. heat exchanger according to claim 26 is characterized in that, the length of the refrigerant barrier part of described flow-dividing control plate is at least 28mm.
28. heat exchanger according to claim 26, it is characterized in that, the opening ratio of this heat exchanger is 20～90%, and this opening ratio is the cold-producing medium that forms in described flow-dividing control plate by the ratio of the quantity of the heat exchanger tube of the quantity in hole and each pipe group.
29. heat exchanger according to claim 26, it is characterized in that, described refrigerant turn tank comprises first parts of the aluminum that engages with heat exchanger tube, with at the part place soldering relative of these first parts second parts of making by the aluminium extrudate on these first parts with heat exchanger tube, and described flow-dividing control plate and this second parts are integral.
30. a kind of refrigeration cycle that comprises compressor, condenser and evaporimeter, described evaporimeter are according to each heat exchanger in the claim 16～29.
31. one kind wherein is equipped with kind of refrigeration cycle according to claim 30 with the vehicle as aircondition.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003272043 | 2003-07-08 | ||
| JP272057/2003 | 2003-07-08 | ||
| JP272043/2003 | 2003-07-08 | ||
| US60/486,898 | 2003-07-15 | ||
| US60/486,897 | 2003-07-15 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810091251XA Division CN101270944B (en) | 2003-07-08 | 2004-07-08 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820176A true CN1820176A (en) | 2006-08-16 |
| CN100483045C CN100483045C (en) | 2009-04-29 |
Family
ID=36919502
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810091251XA Expired - Fee Related CN101270944B (en) | 2003-07-08 | 2004-07-08 | Heat exchanger |
| CNB2004800194764A Expired - Fee Related CN100483045C (en) | 2003-07-08 | 2004-07-08 | Heat exchanger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810091251XA Expired - Fee Related CN101270944B (en) | 2003-07-08 | 2004-07-08 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101270944B (en) |
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| JP3866797B2 (en) * | 1995-10-20 | 2007-01-10 | 株式会社デンソー | Refrigerant evaporator |
| CN2444193Y (en) * | 2000-08-18 | 2001-08-22 | 江西新电汽车空调机有限公司 | Parallel-flow evaporator for air conditioner |
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- 2004-07-08 CN CNB2004800194764A patent/CN100483045C/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101270944B (en) | 2010-06-16 |
| CN100483045C (en) | 2009-04-29 |
| CN101270944A (en) | 2008-09-24 |
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