CN1500198A

CN1500198A - Heat exchanger

Info

Publication number: CN1500198A
Application number: CNA028072235A
Authority: CN
Inventors: 堀内博文; 一; 星野良一; 升; 小笠原升; 田村乔; 寺田隆; 渡边太
Original assignee: Showa Denko KK
Current assignee: Resonac Holdings Corp
Priority date: 2001-02-19
Filing date: 2002-02-18
Publication date: 2004-05-26
Also published as: EP1370818A4; US20050269066A1; EP1370818A1; WO2002066918A1; JP2004530092A; JP4065781B2; KR20030080004A

Abstract

The invention relates to heat exchangers for use in motor vehicles or for industrial use, for example, to heat exchangers for use as evaporators, condensers, oil coolers, intercoolers, heater cores, etc. The invention provides a heat exchanger comprising pairs of plates with each plate of the pair having formed on one side thereof a peripheral ridge, central ridge and channel dividing U-shaped ridges which are formed by forging or cutting. Each pair of plates are fitted together and joined, with channel recesses thereof opposed to each other to form a flat tube and a plurality of U-shaped divided fluid passageways in a U-shaped fluid channel inside the tube. Each pair of adjacent flat tubes are joined by spectacle-shaped header members interposed between the upper ends of the tubes and each comprising a front and a rear fluid passing tube portion and a connecting portion therebetween to provide a front and a rear header in communication with the upper ends of the flat tubes. The flat tubes have a reduced front-to-rear width, diminished wall thickness (thinner layers) and increased heat transfer efficiency to provide a heat exchanger which achieves a higher heat transfer efficiency and greatly improved heat exchange performance.

Description

Heat exchanger

The cross reference of related application

The application requires the priority of provisional application 60/302371, and this applying date according to the provisional application 60/302371 of 35 U.S.C. § 111 (b) is July 3 calendar year 2001.

Technical field

The present invention relates to the heat exchanger that is used for motor vehicle or is used for industrial use, for example relate to heat exchanger as evaporimeter, condenser, oil cooler, intercooler, heater core etc.

Usually, from light weight and machinability aspect, aluminum heat exchanger is widely used as heat exchanger traditionally, in particular as the evaporimeter of motor vehicle air conditioning.

At present, the evaporimeter that is used for motor vehicle air conditioning mainly is lamination type (a stratiform type).When making the evaporimeter of the type, the heat exchange fin that is used for air links together by soldering with the tube portion that is used for vaporized refrigerant, and therefore, for example for performance and productivity ratio, this evaporimeter is better than the heat exchanger that previously used finned tube amplifies type.These evaporimeters especially are better than finned tube greatly and amplify type on performance, because the flap type fin of higher heat exchange efficiency is as the air fin of the type evaporimeter, to guarantee increase heat exchange amount and to reduce the air flow resistance.

Therefore, developed the lighter and compacter heat exchanger of weight, to satisfy smaller szie and lighter weight market demands.Particularly, recently, consider the problem in relevant cabin, a lot of evaporimeters provide filter in the front side, therefore need to reduce the thickness of heat exchanger more, so that be provided for installing the space of filter.

For example, as shown in figure 25, common heat exchangers as evaporimeter comprises: cold-producing medium conduit before and after the aluminium sheet 62 of essentially rectangular, each aluminium sheet form in its surface, and this cold-producing medium conduit forms the concave portions 66 of being separated by the separation ridge 64 that vertically prolongs; And collector, this collector forms the concave portions (not shown) that links to each other with the top and bottom of concave portions 66 respectively, and the degree of depth of this concave portions is greater than part 66.Every pair of adjacent plate 62 formation layer laminate that under the concave surface that makes them situation respect to one another, is assembled together, so that the

relative separation ridge

64,64 of

plate

62,62 is connected to each other, and the relative neighboring 63,63 of

plate

62,62 is connected to each other, thereby form flat tube part 61, the upper and lower collector part that this flat tube part 61 has the flat cold-producing medium conduit 68 of front and rear and links to each other with corresponding conduit 68.A plurality of such flat tube parts 61 are arranged in parallel, and the fin that is used for air simultaneously is arranged between them, thereby form heat exchanger.Each plate 62 is made by aluminium sheet by press forming.

Common heat exchangers as evaporimeter has run into following problem when satisfying the market demands that reduce thickness.

(1) plate 62 that is used to form flat tube part 61 is made by aluminium sheet by using the press compacting, and therefore, the width of separating ridge 64 and neighboring 63 increases.Therefore, joint between two

plates

62,62, be the joint and the relative joint of neighboring 63,63 of the relative separation ridge of

plate

62,62, as the nonuseable part by cold-producing medium not, relatively large area is arranged, therefore this has reduced the cross-sectional area of cold-producing medium conduit when evaporimeter has to constant volume, thereby makes the flow resistance of cold-producing medium increase, and causes performance to reduce.

In order to address this problem, obviously can increase the height of cold-producing medium conduit, thereby guarantee that conduit has enough cross-sectional areas, but the volume that is occupied by the fin of air side in giving constant volume will to reduce.Therefore, the area that fin is used to conduct heat is littler, and the performance reduction, simultaneously, reduces air duct and causes the air flow resistance to increase, thereby suitable air velocity can not be provided.

(2) on the other hand, joint between the neighboring 63,63 of two

plates

62,62 does not directly contact with the fin that is used for air side, thereby lower heat transfer efficiency is arranged, therefore, reduce to comprise that the thickness of the heat exchanger of these nonuseable parts will increase the relative scale of the area that is not contained in these nonuseable parts in the coolant channel.

(3) by press process, the collector that forms the concave portions of plate 62 has than the bigger degree of depth of front and back cold-producing medium conduit that forms the

concave portions

66,66 of separating ridge 64 opposite sides, and therefore, this concave portions 66 of wall ratio is littler.Although account for the resistance to pressure of the flat tube part 61 of larger proportion one allowable error is arranged, the resistance to pressure of collector part is the most weak.For common heat exchanger, flat tube part 61 and collector part are made by press process by whole sheet material, and therefore, the wall thickness and the weight that further reduce the collector part are restricted.

Summary of the invention

The objective of the invention is to overcome the aforementioned technical problem of prior art, and provide a kind of suppressing heat interchanger, this heat exchanger is made by the plate that is formed with ridge and concave portions by forging and cutting in its surface, rather than use the plate that forms by press process to make, and collector is formed by the parts that separate with plate, so that the front and back width of flat tube is reduced, and reduce wall thickness (thickness of layer reduces) and increase heat transfer area, therefore, this heat exchanger is suitable for obtaining higher heat transfer efficiency, and improves heat exchange property greatly.

At first, the invention provides a kind of heat exchanger, it is characterized in that: heat exchanger comprises that plate is right, and wherein, each right plate of this plate has: the periphery ridge, and this periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and the upper end of slave plate extends downwardly into and can form the position of returning conduit, these ridges are by forging or cutting formation, each right plate of described plate has the U-lag road groove that is formed at periphery keel portion, this U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below this center ridge, this conduit groove has two fluid inlets-outlet through hole, one of them through hole is formed at an end of this conduit groove, another through hole is formed at the other end of this conduit groove, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their U-lag road groove situation respect to one another, so that make the end-to-end link each other of relative periphery ridge, make the end-to-end link each other of relative center ridge, thereby formation flat tube, this flat tube inside has U-shaped fluid conduit, like this, a plurality of flat tubes are arranged in parallel, header pipe component inserts between each upper end to the adjacent flat pipe simultaneously, so that the front header and the rear header that are communicated with the right upper end of described adjacent flat pipe are provided, header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective inlets-outlet through hole of the plate that this tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between this tube portion.

The second, the invention provides a kind of heat exchanger, it is characterized in that: heat exchanger comprises that plate is right, wherein, each right plate of this plate has: the edge ridge, this edge ridge is whole U-shaped, along the opposite side edge of plate and lower limb and be arranged on the one side of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and forked upper end, this center ridge extends downwardly into from the upper end and forms the position of returning conduit, these ridges are by forging or cutting formation, each right plate of described plate has the U-lag road groove that is formed at U-shaped edge keel portion, this U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below this center ridge, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their U-lag road groove situation respect to one another, so that make the end-to-end link each other of relative U-shaped edge ridge, make the relative center ridge end-to-end link each other that comprises the bifurcated upper end, thereby formation flat tube, this flat tube has the bifurcated open upper end, and inside has U-shaped fluid conduit, a pair of front and back header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the slit in the diapire that is formed at it, these slits are arranged with preset space length, by in the respective slots in the header pipe component before and after the bifurcated open upper end of flat tube is inserted a plurality of flat tubes being arranged in parallel, so that flat tube is linked to each other with header pipe component, and provide the front and rear collector that is communicated with the bifurcated open upper end of flat tube.

For having described first or the heat exchanger of second feature, a plurality of conduits separate the U-shaped ridge by forging or cutting is formed in the U-lag road groove of each plate, and a plurality of U-shaped separate fluid tunnel-shaped are formed in the U-shaped fluid conduit of each flat tube inside.The invention provides several conduits and separate the ridge pattern.

For first pattern, a plurality of conduits separate the U-shaped ridge and are formed in the U-lag road groove of each plate by forging or cutting, each described plate is to being assembled together under their groove situation respect to one another, and each relative conduit separates the U-shaped ridge to end-to-end link each other, so that be formed on the interior a plurality of U-shaped separate fluid passages of U-shaped fluid conduit of flat tube inside.

It is as follows that the conduit of second pattern separates ridge.Conduit separated ridge before and after each right plate of described plate formed in its conduit groove, the height that this conduit separates ridge is the twice of the degree of depth of conduit groove, and each conduit separates straight part and quadrant arc part in straight trough road, the front and back groove part that ridge is included in the conduit groove, this quadrant arc part is stretched out from the lower end of straight part, and be arranged in the returning part of conduit groove, conduit separates ridge by forging or cutting formation, and when being assembled together under to the conduit groove situation respect to one another at them, each described plate alternately locatees, each described plate is to being assembled together under their conduit groove situation respect to one another, so that the top that conduit separates ridge before and after making is with the formation conduit groove of plate and separate the relative diapire plane surface of ridge with this conduit and be connected, thus in the U-shaped fluid conduit of flat tube inside formation U-shaped separate fluid passage.

It is as follows that conduit separates the three-mode of ridge.Each right plate of described plate forms conduit and separates ridge in its conduit groove, the height that this conduit separates ridge is the twice of the degree of depth of conduit groove, and by forging or cutting formation, so that alternately locate, when each described plate when under their groove situation respect to one another, being assembled together, each described plate is to being assembled together, so that top that conduit on each right plate of plate separates ridge is connected with plane surface facing to the diapire of the conduit groove of another plate of described plate, thereby formation U-shaped separate fluid passage in the U-shaped fluid conduit in flat tube.

It is as follows that conduit separates the four-mode of ridge.Each right plate of described plate forms conduit and separates ridge in the latter half of its conduit groove, the height that this conduit separates ridge is the twice of the degree of depth of conduit groove, and by forging or cutting formation, the first half of the conduit groove of each plate plane surface shape that its diapire provides of serving as reasons, there is not conduit to separate ridge, each described plate is to being assembled together under its groove situation respect to one another, link to each other with the diapire plane surface of the conduit groove of the plate that separates ridge facing to this so that make its conduit separate the top of ridge, thereby form U-shaped separate fluid passage in the U-shaped fluid conduit in flat tube.

For the heat exchanger with the present invention's first feature, one in the every pair of plate can be replaced by flat board.

Particularly, at this moment heat exchanger comprises epimere, and each epimere has: the periphery ridge, and this periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and the upper end of slave plate extends downwardly into and can form the position of returning conduit, these ridges are by forging or cutting formation, each epimere has the U-lag road groove that is formed at periphery keel portion, this U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below this center ridge, this conduit groove has two fluid inlets-outlet through hole, one of them through hole is formed at an end of this conduit groove, another through hole is formed at the other end of this conduit groove, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, and have and corresponding two fluid inlets of described through hole-outlet through hole, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge of epimere links to each other with the plane surface of the respective center of flat board part, therefore form the inner flat tube that U-shaped fluid conduit is arranged, like this, a plurality of flat tubes are arranged in parallel, header pipe component inserts between each upper end to the adjacent flat pipe simultaneously, so that the front header and the rear header that are communicated with the right upper end of described adjacent flat pipe are provided, header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective inlets-outlet through hole of the plate that this tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between this tube portion.

For the heat exchanger with the present invention's second feature, one in the every pair of plate can be replaced by flat board.

More particularly, at this moment heat exchanger comprises epimere, and each epimere has: the edge ridge, and this edge ridge is whole U-shaped, along the opposite side edge of plate and lower limb and be arranged on the one side of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and forked upper end, this center ridge extends downwardly into from the upper end can form the position of returning conduit, these ridges are by forging or cutting formation, each epimere has the U-lag road groove that is formed at U-shaped edge keel portion, this U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below this center ridge, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge that comprises the bifurcated upper end of epimere links to each other with the plane surface of the respective center part of flat board, thereby formation flat tube, this flat tube has the bifurcated open upper end, and inside has U-shaped fluid conduit, a pair of front and back header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the slit in the lower wall that is formed at it, these slits are arranged with preset space length, by in the respective slots in the header pipe component before and after the bifurcated open upper end of flat tube is inserted a plurality of flat tubes being arranged in parallel, so that flat tube is linked to each other with header pipe component, and provide the front and rear collector that is communicated with the bifurcated open upper end of flat tube.

In having this dull and stereotyped heat exchanger, a plurality of conduits separate the U-shaped ridge and are formed in the U-lag road groove of each epimere by forging or cutting, each epimere and each flat board are assembled together under the conduit of epimere separates U-shaped ridge and situation that the plane surface of the respective center part of flat board links to each other face-to-face, so as in the U-shaped fluid conduit of flat tube inside a plurality of U-shaped separate fluid passages of formation.

The 3rd, the invention provides a kind of heat exchanger, it is characterized in that: heat exchanger comprises that plate is right, wherein, each right plate of this plate has: the periphery ridge, this periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and vertical the extension, these ridges are by forging or cutting formation, each right plate of described plate has and is formed at periphery keel portion and at the front and back of center ridge opposite side conduit groove part, the conduit groove part has the through hole of the top and bottom that are formed at it respectively before and after each, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their conduit groove part situation respect to one another, so that make the end-to-end link each other of relative periphery ridge, make the end-to-end link each other of relative center ridge, thereby formation flat tube, fluid conduit before and after this flat tube inside has, like this, a plurality of flat tubes are arranged in parallel, the upper and lower header pipe component inserts each respectively between the upper end of adjacent flat pipe and between the lower end of adjacent flat pipe simultaneously, so that the upper header and the lower header that are communicated with the right top and bottom of described adjacent flat pipe are provided, each header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective through hole of the plate that this tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between this tube portion.

The 4th, the invention provides a kind of heat exchanger, it is characterized in that: heat exchanger comprises that plate is right, wherein, each right plate of this plate has: lateral edges ridge, this lateral edges ridge are along each opposite side edge of plate and be arranged on the one side of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and the lower end of forked upper end and bifurcated, these ridges are by forging or cutting formation, each right plate of described plate has and is formed at lateral edges keel portion and at the front and back conduit groove part of the opposite side of center ridge, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their conduit groove part situation respect to one another, so that make the end-to-end link each other of opposite side edge ridge, make the relative center ridge end-to-end link each other that comprises the bifurcated top and bottom, thereby formation flat tube, this flat tube has bifurcated open upper end and lower end, and fluid conduit before and after inside has, the a pair of front and back of top a pair of front and back header pipe component and bottom header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the upper wall that is formed at it or the slit in the lower wall, these slits are arranged with preset space length, by the bifurcated open upper end of flat tube or lower end being inserted in the respective slots in the header pipe component a plurality of flat tubes are arranged in parallel, so that flat tube is linked to each other with header pipe component, and the front and rear collector that the top that is communicated with the bifurcated open upper end and the lower end of flat tube respectively is provided to and the front and rear collector of bottom right.

For having the described the 3rd or the heat exchanger of the 4th feature, a plurality of conduits separate ridge by forging or cutting is formed in the front and back conduit groove part of each plate, and a plurality of separate fluid tunnel-shaped are formed in the front and back fluid conduit of each flat tube inside.The invention provides several conduits and separate the ridge pattern.

For first pattern, a plurality of conduits separate ridge and are formed in the front and back conduit groove part of each plate by forging or cutting, each described plate is to being assembled together under their groove part situation respect to one another, so that make each relative conduit separate ridge, and be formed on separate fluid passage in the front and back fluid conduit of flat tube inside to end-to-end link each other.

It is as follows that the conduit of second pattern separates ridge.Conduit separated ridge before and after each plate formed in the conduit groove part before and after it, the height that this conduit separates ridge is the twice of the degree of depth of groove part, the front and back conduit separates ridge by forging or cutting formation, and alternately locate when under their groove part situation respect to one another, being assembled together when each described plate, each described plate is to being assembled together Face to face, so that the top that conduit separates ridge before and after making connects with the diapire plane surface of the groove part of relative plate, thus in the fluid conduit of the front and back of flat tube inside formation separate fluid passage.

It is as follows that conduit separates the three-mode of ridge.Each right plate of plate forms conduit and separates ridge in the conduit groove part before and after each at it, the height that this conduit separates ridge is the twice of the degree of depth of groove part, this conduit separates ridge by forging or cutting formation, like this, the right front and back conduit of each plate separates ridge and alternately locatees when being assembled together face-to-face, each described plate is to being assembled together under their groove part situation respect to one another, so that top that the front and back conduit of each right plate of plate separates ridge is connected with diapire plane surface facing to the groove part of another right plate of its this plate, thereby formation separate fluid passage in the front and back fluid conduit in flat tube.

It is as follows that conduit separates the four-mode of ridge.Each plate forms a plurality of conduits and separates ridge in its one of front and back conduit groove part, the height that this conduit separates ridge is the twice of the degree of depth of groove part, this conduit separates ridge by forging or cutting formation, another conduit groove part has the diapire plane surface, described diapire plane surface does not have conduit to separate ridge, each described plate is to being assembled together under its groove part situation respect to one another, so that the top that makes conduit separate ridge links to each other with the diapire plane surface of the groove part of the plate that faces toward it, thereby forms the separate fluid passage in the front and back fluid conduit in flat tube.

For the heat exchanger with the present invention's the 3rd feature, one in the every pair of plate can be replaced by flat board.

More particularly, at this moment heat exchanger comprises epimere, and each epimere has: the periphery ridge, and this periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and vertical the extension, these ridges are by forging or cutting formation, each epimere has and is formed at periphery keel portion and at the front and back of center ridge opposite side conduit groove part, the conduit groove part has the through hole of the top and bottom that are formed at it respectively before and after each, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, and have and the corresponding fluid inlet of described through hole-outlet through hole, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge of epimere links to each other with the plane surface of the respective center of flat board part, therefore form the inner flat tube that front and back fluid conduit is arranged, like this, a plurality of flat tubes are arranged in parallel, the upper and lower header pipe component inserts each respectively between the upper end of adjacent flat pipe and between the lower end of adjacent flat pipe simultaneously, so that the upper header and the lower header that are communicated with the right top and bottom of described adjacent flat pipe are provided, each header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective through hole of the plate that this tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between this tube portion.

In above-mentioned heat exchanger, be arranged between the right upper end of each adjacent flat pipe and can there be a passage one coupling part in the upper and lower header pipe component between the lower end, this passage makes the fluid of this header pipe component interconnect by tube portion.

For the heat exchanger with the present invention's the 4th feature, one in the every pair of plate can be replaced by flat board.

More particularly, at this moment heat exchanger comprises epimere, and each epimere has: lateral edges ridge, this lateral edges ridge are along each opposite side edge of plate and be arranged on the one side of plate; And center ridge, this center ridge is arranged in the width center of this plate on described of plate, and the lower end of forked upper end and bifurcated, these ridges are by forging or cutting formation, each epimere has and is formed at lateral edges keel portion and at the front and back conduit groove part of the opposite side of center ridge, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, the top of the lateral edges ridge of epimere links to each other with the lateral edges of flat board, epimere, the top that comprises the center ridge of bifurcated top and bottom links to each other with the plane surface of the respective center part of flat board, thereby formation flat tube, this flat tube has bifurcated open upper end and lower end, and fluid conduit before and after its inside has, the front and back header pipe component on top to the front and back header pipe component of bottom to becoming to have the form of the pipe of square-section respectively, each header pipe component has the upper wall that is formed at it or the slit in the lower wall, these slits are arranged with preset space length, by the bifurcated open upper end of flat tube or lower end being inserted in the respective slots in the header pipe component a plurality of flat tubes are arranged in parallel, so that flat tube is linked to each other with header pipe component, and the front and back header pipe component that the top that is communicated with the bifurcated open upper end and the lower end of flat tube respectively is provided is to right with the front and back header pipe component of bottom.

In using this dull and stereotyped heat exchanger, each epimere has by the conduit that forges or cutting is formed in the front and back conduit groove part of this epimere and separates ridge, each epimere cooperates with each platen surface opposite, so that the top that makes conduit separate ridge is connected with the plane surface of the appropriate section of flat board, thereby forms the separate fluid passage in the fluid conduit of the front and back of flat tube inside.

In heat exchanger with the first or the 3rd feature, be arranged in fluid that header pipe component between the end of every pair of adjacent flat pipe has it by tube portion, the plane surface connection of this tube portion on the another side of the right relative plate of their opposing end surface and flat tube.Preferably, temporarily keep the hobnail/temporary fixing piece (tack) of header pipe component to be arranged on the respective edges of import-outlet through hole of determining each plate end.

In heat exchanger, the conduit that a plurality of notch shape are formed in each plate separates chi chung, so that the adjacent separate fluid passage of flat tube inside is communicated with each other by this otch.

In described any heat exchanger of the present invention, fin be arranged in be contained in the flat tube that is arranged in parallel each between the adjacent flat pipe, and the plane surface on the another side of the right plate of the opposite side edge of fin and flat tube is connected.

In order to be used for described any heat exchanger of the present invention, plate has by forging or cut groove and the ridge on the one side that is formed at it, and with the common plate that replaces forming by press process, header pipe component is the parts that separate with plate, is used to provide collector.These features reduce the front and back width of flat tube, and wall thickness (thickness of layer reduces) reduces, and has increased heat transfer area, thereby helps improving heat transfer efficiency and improve heat exchange property greatly.

Brief description of drawings

Fig. 1 is the perspective view according to the heat exchanger of first embodiment of the invention;

Fig. 2 is the amplification front elevation of plate of the heat exchanger of Fig. 1;

Fig. 3 is the local enlarged perspective of plate;

Fig. 4 is that decomposition diagram is amplified in the part of the heat exchanger of Fig. 1;

Fig. 5 is the amplification view of the plate pipe of heat exchanger;

Fig. 6 is the partial cutaway enlarged perspective of expression heat exchanger;

Fig. 7 is the local amplification view of version of separately ridge of plate of the heat exchanger of presentation graphs 1;

Fig. 8 is the amplification front elevation of version of the plate of expression heat exchanger;

Fig. 9 is the local enlarged perspective of another version of the plate of expression heat exchanger;

Figure 10 is to use the amplification view of flat tube of heat exchanger of the plate of Fig. 9;

Figure 11 amplifies decomposition diagram according to the part of the heat exchanger of second embodiment of the invention;

Figure 12 is the local amplification front elevation of plate of the heat exchanger of Figure 11, has also represented collector among the figure;

Figure 13 is the perspective view according to the heat exchanger of third embodiment of the invention;

Figure 14 is the amplification front elevation of the plate of heat exchanger plate shown in Figure 13;

Figure 15 is the local enlarged perspective of heat exchanger plate;

Figure 16 is the amplification decomposition diagram of the upper part of heat exchanger;

Figure 17 is the amplification decomposition diagram of the end portion of heat exchanger;

Figure 18 is the amplification front elevation of plate that is used for the heat exchanger of Fig. 1, has represented separately second version of ridge;

Figure 19 is to use the amplification view of flat tube of heat exchanger of the plate of Figure 18;

Figure 20 is the amplification front elevation of plate that is used for the heat exchanger of Fig. 1, has represented separately the 3rd version of ridge, and this plate is in a pair of plate of combination;

Figure 21 is this amplification front elevation to another plate in the plate;

Figure 22 is the amplification front elevation of plate that is used for the heat exchanger of Fig. 1, has represented separately the 4th version of ridge;

Figure 23 is to use the amplification view of flat tube of heat exchanger of the plate of Figure 22;

Figure 24 is the amplification view of the flat tube of heat exchanger of the present invention, and wherein, one in a pair of plate of combination by the flat board replacement as a kind of version;

Figure 25 is the amplification view of flat tube of an example of common heat exchangers.

Implement optimised form of the present invention

Introduce embodiments of the invention below with reference to the accompanying drawings.

Terminology used here " front ", " back ", " left side ", " right side ", " top " and " following " are all based on Fig. 2; " front " refers to the left side of Fig. 2, and " back " refers to the right side of Fig. 2, and " left side " refers to the front side of plan, and " right side " refers to the rear side of plan, and " top " refers to the upside of figure, and " following " refers to the downside of figure.

Accompanying drawing has been represented the heat exchanger of the present invention as the evaporimeter of motor vehicle air conditioning.

Fig. 1 to 6 has represented the first embodiment of the present invention.Heat exchanger 1 as evaporimeter is made by aluminium (comprising aluminium alloy).

The essentially rectangular plate of being made by aluminium sheet 2 has: periphery ridge 3, this periphery ridge 3 along the periphery of plate on the one side of plate 2; And center ridge 4, this center ridge 4 is arranged in the same side of plate 2, and in its width center, and the upper end of slave plate extends downwardly into always and can form cold-producing medium and return/position of backflow conduit.U-shaped cold-producing medium conduit groove 6 is formed in the plate 2, and in periphery ridge 3 inside, this U-shaped cold-producing medium conduit groove 6 comprises: cold-producing medium straight trough road, front and

back groove part

6a, 6b, and they are arranged in the opposite side of center ridge 4; And cold-producing medium returns conduit groove part 6c, it be positioned at center ridge below.

According to this first embodiment, plate 2 is fluted 14 at the width middle part of its upper end, and when when the front is seen, this groove 14 is a U-shaped.The upper end of center ridge 4 is connected with the lower end of periphery ridge 3 at this groove 14.

Conduit groove 6 has and another through hole 10 that is formed at its other end in the refrigerant inlet-outlet through

hole

10,10 at an end place that is formed at it.Plate 2 has a plurality of conduits to separate U-shaped ridge 5, and these U-shaped ridges 5 are formed at the inside of conduit groove 6, and almost extends along the whole length of this conduit groove 6.

Width middle part in the upper end of plate 2 exists groove 14 can make through

hole

10,10 be positioned to the width of this groove 14 spaced from each other.This is used to prevent that the cold-producing medium at refrigerant of low temperature entering part and high temperature from flowing out the undesirable heat exchange of generation between the part, and prevents that the cold-producing medium of introducing inlet header (back will be introduced) from flowing into outlet header by very short path.

There is short circular arc ridge 9 at the turning of returning conduit groove part 6c of conduit groove 6, is used to improve the heat exchange efficiency in the corner part office.

Each plate 2 is for example by forging or cutting formation.Plate 2 is arranged in pairs, the every pair of plate 2 is assembled together making under their

U-lag road groove

6,6 situations respect to one another, so that make

relative periphery ridge

3,3 end-to-end links each other of

plate

2,2, make their

relative center ridge

4,4 end-to-end links each other, and make relative each

separate ridge

5,5 end-to-end links each other to conduit, thereby form the inner flat tube 12 that U-shaped cold-producing medium conduit 8 is arranged, the coolant channel 7 that separates of a plurality of U-shapeds is formed in the cold-producing medium conduit 8 in the flat tube 12 simultaneously.

Clad material is used for each plate 2, and this plate 2 has a lip-deep brazing sheet that is fixed on it, and preferably inner surface and the outer surface at it all has brazing sheet.Such parts can link together at an easy rate.

Evaporimeter 1 of the present invention has collector 23,23, and this collector 23,23 interconnects the

flat tube

12,12 that refrigerant line is provided, and this collector forms as follows.

A plurality of flat tubes 12 are arranged in parallel, and the header pipe component 20 of spectacle is arranged between the upper end of every pair of adjacent

flat pipe

12,12 simultaneously, so that provide and this front and rear collector 23,23 that upper end of adjacent flat pipe 12 is communicated with.Header pipe component 20 comprises: a pair of front and back cold-producing medium is by

tube portion

21,21, and this is communicated with the respective inlets-outlet through

hole

10,10 of plate 2 by tube portion cold-producing medium; And the coupling part between tube portion 22.The plane surface connection that surface, the opposite end of the front and

back tube portion

21,21 of header pipe component 20 and opposite side by the corresponding

relative plate

2,2 of a pair of flat tube 12 provide.

Below collector 23,23, be used for and corrugated flap type fin 24 that air carries out heat exchange is arranged between the adjacent flat pipe 12,12.Fin 24 is connected with the plane surface of right side with

plate

2,2 in its left side.

Corrugated flap type fin 24 has the shutter that forms simultaneously with elbow, conducts heat so that improve.

The bottom of U-shaped groove 14 at width middle part that is formed at the upper end of each plate 2 needs to be arranged to be lower than the coupling part 22 of spectacle header pipe component 20, so that discharge the condensed water that is collected in this groove.

Be used for temporarily keeping the hobnail/temporary fixing piece 13,13 (tack) of header pipe component 20 to be arranged in the middle part of the lower limb of each import-outlet through

hole

10,10 of determining plate 2 upper ends.Header pipe component 20 can prevent to move by these

hobnail

13,13 in brazing process.

With reference to figure 1 and 4, pair of

side plates

25,25 is arranged in the left end and the right-hand member of this evaporimeter 1.This has the import-outlet contiguous block 27 that links to each other with its upper end to the left plate in the side plate 25.This side plate 25 has a pair of front and back through

hole

26,26, and this is formed at the upper end of this side plate to through

hole

26,26, and respectively be formed at piece 27 in a pair of front and back through

hole

28,28 be communicated with.The

hole

26,26 of side plate 25 is communicated with the

tube portion

21,21 of header pipe component 20 respectively.

Explanation in passing, when piece 27 in the left outer end of evaporimeter 1 or right outer end when directly being installed on the plate 2, do not need to provide side plate 25.Selectively, piece 17 can be arranged in the middle part of the short transverse of side plate 25.Piece 27 can also be arranged in the length direction middle part of evaporimeter 1, perhaps can comprise inlet tube contiguous block and outlet contiguous block, this inlet tube contiguous block and outlet contiguous block are respectively at the left end and the right-hand member of evaporimeter, so that import and outlet are positioned at left end and right-hand member respectively.

Described evaporator part assembles, and links together by soldering then, so that make the major part of evaporimeter 1.

Assembly is soldering in a vacuum, perhaps in the furnace brazing of using fluorine-containing solder flux.

Consider resistance to pressure, wish that header pipe component 20 uses the material with relative higher-strength with side plate 25.Particularly wish to use the aluminium alloy of the magnesium that includes interpolation.

When using fluorine-containing solder flux, wish to use content of magnesium to be preferably and to reach 0.4% aluminum alloy materials, but because this can improve cementability and intensity.

The surperficial near flat of plate 2 and corrugated fin 24, therefore, fin 24 can be connected on the flat tube 12 near 100% ground, so that obtain very high efficiency heat exchange at the pipeline of flat tube 12 between the inner and corrugated fin 24.

The header pipe component 20 that provides collector 23,23 has the roughly section of spectacle, and two coolant channels are arranged, and one of them plays collects or the effect of the entering part of assignment system cryogen, and another is used to collect or the outflow part of assignment system cryogen.

When heat exchanger of the present invention was used as evaporimeter 1, cold-producing medium was introduced flat tube 12 with the form of the mixture of liquids and gases.At this moment, the density of liquid refrigerant is higher than gas, the easier inertia force that is subjected to.Liquid refrigerant has the straight ahead characteristic higher than gas.Therefore, liquid refrigerant will concentrate on the collector end away from inlet header more.The Non-Uniform Flow of liquid refrigerant has upset the balance of evaporation latent heat in the each several part, thereby has influenced performance greatly.This can overcome so effectively, promptly by making flat tube 12 stretch into collector 23, so that as deflector and the characteristic that reduces the liquid refrigerant straight ahead.

The present invention can be easy to provide deflector structure, and for example the height b1 of the through hole 10 of the inlet side by making flat tube 12 is less than the cold-producing medium of the header pipe component 20 internal diameter b2 by tube portion 21.Selectively, by at a place or many places reduce header pipe component 20 front and back tube portion 21 cross-sectional area and produce the long-pending stream of variable cross-section thus, thereby obtain the deflector effect.

Such method has reduced liquid refrigerant and has passed through collector 23,23 and the performance of straight ahead, thereby cold-producing medium can be flowed in the flat tube 12 with aliquot.

Percentage in flat tube 12 stretches into the collector 23 of evaporimeter 1 of the present invention is defined as:

(b2-b1)/b2

Wherein b1 is the height at the through hole 10 of the inlet side of flat tube 12, and when b2 was the internal diameter of tube portion 21 of header pipe component 20, the OK range of the percentage that stretches out was 10 to 60%.When the percentage that stretches out less than 10% the time, can not obtain the effect of deflector, be easy to produce Non-Uniform Flow, and when the percentage that stretches out surpassed 60%, collector 23 had increased flow resistance, thereby has undesirably reduced performance.

Shown in detailed among Fig. 5, special hope slopes inwardly by the

periphery ridge

3,3 on a pair of

plate

2,2 that makes pipe 12, make

center ridge

4,4 on it slope inwardly and make conduit

separate ridge

5,5 and slope inwardly, thereby the coolant channel 7 that the U-shaped in the cold-producing medium conduit 8 that is formed at each flat tube 12 inside is separated is made for roughly hexagonal cross-section.Such reason is that it helps making liquid refrigerant to be extended into thin layer on the inner surface of the cold-producing medium conduit 8 of the flat tube 12 that is used to conduct heat.

In the coolant channel 7 that U-shaped in the conduit 8 that is formed at flat tube 12 inside separates, the passage 7a that separates between the U-shaped ridge 5 at periphery ridge 3 and conduit has the hexagonal cross-section with big width, and the passage 7b between

ridge

5,5 has the hexagonal cross-section of less width.

On the other hand, when the coolant channel 7 that the U-shaped in being formed at dull and stereotyped 12 internal refrigeration storage agent conduit 8 separates has the square-section, for example as shown in Figure 7, when the pipeline width reduces when increasing the surface area of cold-producing medium, liquid refrigerant is easy to concentrate in the wall turning of flat tube 12, because the lower liquid refrigerant of velocity ratio gas is pushed to channel end.When the required liquid refrigerant of evaporation is pushed to the end, liquid refrigerant will can not stick to

periphery ridge

3,3,

center ridge

4,4 and conduit in the flat tube 12 to be separated on the inwall of

ridge

5,5 and will can not carry out effective heat exchange, like this, this heat exchanger can not have desirable performance.

When the coolant channel 7 that separates is made roughly hexagonal cross-section, as shown in Figure 5, liquid refrigerant is the easiest to be concentrated in the female component of mid portion of passage 7, thereby stick to the inclined surface of this inclined surface,

center ridge

4,4 and separately on the inclined surface of

ridge

5,5 to the

periphery ridge

3,3 of

plate

2,2, so that effectively conduct heat, and can make these ridges, thereby improve heat transfer property effectively as internal fins.Therefore, increased the area of effective parts of cooling air in the heat transfer part of coolant channel 7 inside, thereby guaranteed comfortable.

But, evaporimeter 1 of the present invention can form shown in any one of Fig. 5 and 7, because the overall width that is used for the conduit by cold cold-producing medium equals the contact width of the corrugated fin 24 of heat exchanger of the present invention, so that obtain the heat exchange efficiency higher than common heat exchangers.

According to described first embodiment of the invention, plate 2 for example is 10 to 40mm wide and 0.25 to 1.0mm thick.

For example, the thickness of the periphery ridge 3 on the plate 2 is 0.25 to 1.0mm, and width is 0.5 to 2.0mm.For example, the thickness of the center ridge 4 on the plate 2 is 0.25 to 1.0mm, and width is 0.5 to 2.0mm.For example, the thickness that the conduit on the plate 2 separates U-shaped ridge 5 is 0.25 to 1.0mm, and width is 0.25 to 1.0mm.

For above-mentioned evaporimeter 1, introduce end inflow separately the coolant channel 7 of the cold-producing medium of front header 23 from the U-shaped cold-producing medium conduit 8 of each flat tube 12 by the through hole 28 (being inlet hole 28) in the pipe contiguous block 27, and flow to the other end of conduit 8 by this U-shaped passage 7, flow through rear header 23 and another through hole 28 in piece 27 (being outlet opening 28) again, and flow out this evaporimeter.

On the other hand, air in the past flows through evaporimeter 1 through each space that corrugated flap type fin 24 is wherein arranged backward, these spaces are formed between the adjacent flat tube 12 and between pipe 12 and each end plate 25, therefore, air carries out high efficient heat exchanging by wall, end plate 25 and the flap type fin 24 of flat tube 12 with cold-producing medium.

Evaporimeter 1 according to first embodiment is made by plate, and this plate has by forging or cutting and the groove and the ridge that form on its one side, and this plate is used to replace the common plate that forms by press process.Before and after collector form by the header pipe component that separates with this plate.These features make the front and back width of flat tube 12 reduce to reduce with thickness (thinner layer), and bigger heat transfer area is arranged, thereby make evaporimeter can efficiently obtain higher heat transfer efficiency, and have improved heat exchange property greatly.

In order to guarantee that cold-producing medium can improve the heat transfer in flat tube 12, wish that conduit on each plate 2 separates in the U-shaped ridge 5 to form a plurality of otch 15 with preset space length, for example shown in Figure 8.Otch 15 interlaced arrangement in adjacent ridge 5 are so that make pipe adjacent coolant channel 12 inside, that separate 7,7 communicate with each other by otch 15.

Selectively, flat tube 12 can have the turbulent flow of interlaced arrangement to promote parts (projection) 16, so that make the cold-producing medium turbulization, conducts heat thereby improve, for example as shown in Figures 9 and 10.

Figure 11 and 12 has represented the second embodiment of the present invention.The difference of this embodiment and first embodiment is to use a pair of front and back

header pipe component

41,42, the shape of the pipe of each

header pipe component

41,42 one-tenth square-sections.

More particularly, evaporimeter 1 is made by the plate 2 of essentially rectangular, and this plate 2 is an aluminium sheet.Each plate 2 has: on the one side that edge ridge 33, this edge ridge 33 are arranged in this plate along the opposite side edge and the lower limb of plate, be whole U-shaped; And center ridge 34, this center ridge 34 is arranged in the same side of plate 2, and in its width center, and forked upper end 34a, this center ridge 34 extends downwardly into from upper end 34a always can form the position that cold-producing medium returns conduit.Plate 2 has U-shaped cold-producing medium conduit groove 36, and this conduit groove 36 forms the inside of U-shaped edge ridge 33, and comprises: cold-producing medium straight trough road, front and

back groove part

36a, 36b, and they are arranged in the opposite side of center ridge 34; And cold-producing medium returns conduit groove part 36c, it be positioned at center ridge below.Plate 2 has a plurality of conduits to separate U-shaped ridge 35, and this conduit separates U-shaped ridge 35 and is formed at conduit groove 36 inside, and almost extends along the whole length of this conduit groove 36.

There is short circular arc ridge 39 at the turning of returning conduit groove part 36c of conduit groove 36, is used to improve the heat exchange efficiency in the corner part office.

According to this second embodiment,, be provided with the groove 37 of a U-shaped at the middle body of the width of the upper end of this plate 2 when when the front is seen.This central authorities' ridge 34 has the upper end 34a of bifurcated.

Each plate 2 is for example by forging or cutting formation.Plate 2 is arranged in pairs, the every pair of plate 2 is assembled together making under their U-lag road groove 36,36 situations respect to one another, so that make relative

U-shaped edge ridge

33,33 end-to-end links each other of

plate

2,2, make

relative center ridge

34,34 end-to-end links each other that comprise bifurcated upper end 34a, and make relative each

separate ridge

5,5 end-to-end links each other to conduit, thereby form flat tube 32, the upper end 32a of this

flat tube

32,32a bifurcated and opening, the coolant channel that a plurality of U-shapeds of while separate is formed in the flat tube 32.

On the other hand, a pair of front and back

header pipe component

41,42 becomes the shape of rectangular section tube respectively, and lower wall 43, antetheca 45, rear wall 46 and upper wall 47 are arranged.

Header pipe component

41,42 has slit 44,44, and this slit 44,44 is formed on the corresponding

lower wall

43,43 of this header pipe component, and arranges with preset space length.Flat tube 32 laterally is arranged in parallel, insert in the

respective slots

44,44 of

header pipe component

41,42 arranged side by side by bifurcated open

upper end

32a, 32a simultaneously and flat tube is connected with header pipe component, thereby make the front and back collector be arranged to be communicated with bifurcated open upper end 32a, the 32a of flat tube 32 with flat tube.At this moment, each side by side before and after rear wall 46 and the antetheca 45 of

header pipe component

41,42 be installed to by linking together in the

U-shaped groove

37,37 of upper end of

relative plate

2,2 of each flat tube 32.

Below collector, corrugated fin 24 is arranged between the adjacent flat pipe 32,32.Fin 24 is connected with the plane surface that another side by

plate

2,2 provides on its left side and right side.

The evaporimeter 1 of second embodiment is made in the same manner as in the first embodiment, wherein, the soldering in a vacuum of the assembly of parts, perhaps in the furnace brazing of using fluorine-containing solder flux, therefore, in described accompanying drawing, identical parts are represented by identical reference number.

Although it is not shown, but the described a pair of front and back

header pipe component

41,42 that respectively has the rectangular tubular shape of one's own can be by single aluminum extruded replacement, this aluminum extruded cold-producing medium conduit that two essentially rectangular cross sections are arranged, and separate by center wall, thus be used for evaporimeter 1 according to described second embodiment.Extruding part has slit 44,44, and this slit 44,44 is formed in the appropriate section of its lower wall, and this slit 44,44 determined the cold-producing medium conduit, and arranges with preset space length.By inserting bifurcated open upper end 32a, the 32a of pipe in the

respective slots

44,44 and pipe is linked to each other with lower wall, thereby collector is arranged to be communicated with bifurcated open upper end 32a, the 32a of flat tube 32 arranged side by side before and after making.

Figure 13 to 17 has represented the third embodiment of the present invention.The difference of this embodiment and first embodiment is that collector 57 and collector 58 are arranged in the top and the bottom of evaporimeter 1.

With reference to the accompanying drawings, the plate 2 of the essentially rectangular of being made by aluminium sheet has: periphery ridge 3, this periphery ridge 3 along the periphery of plate on the one side of plate 2; And center ridge 4, this center ridge 4 is arranged in the same side of plate 2 and its width center and vertical the extension.In plate 2 and in periphery ridge 3 inside, be formed with: front and back cold-producing medium

conduit groove part

6a, 6b, these front and back cold-producing medium

conduit groove part

6a, 6b are arranged in the opposite side of center ridge 4; And through

hole

10,10, this through

hole

10,10 is formed at the top and bottom of groove part 6a, 6b.Plate 2 has straight conduit to separate ridge 5, and this conduit separates the inside that ridge 5 is formed at

conduit groove part

6a, 6b, and extends on the approximate whole length of

part

6a, 6b.

Plate 2 is for example by forging or cutting formation.This plate 2 is arranged in pairs, the every pair of plate 2 is assembled together making under their concave portions 6a, the 6b situation respect to one another, so that make

relative periphery ridge

3,3 end-to-end links each other of

plate

2,2, make their

relative center ridge

4,4 end-to-end links each other, and make relative each

separate ridge

5,5 end-to-end links each other to conduit, thereby form the flat tube 12 that there is U-shaped cold-producing medium conduit 8 its inside, the parallel coolant channel that separates 7 is formed in the flat tube 12 (seeing first embodiment of Fig. 7) simultaneously.

Requisite number purpose flat tube 12 is arranged side by side.The upper and lower

header pipe component

51,52 of spectacle comprises that respectively a pair of front and back cold-producing medium is by

tube portion

53,53 or 54,54 and the coupling part between them 55 or 56, this upper and lower

header pipe component

51,52 is arranged in each between the upper end of adjacent flat pipe and between the lower end of this adjacent flat pipe, and tube portion 53 or 54 is communicated with the respective through hole 10 of relative plate 2.

As Figure 14 in detail shown in, the front and back through hole is to 10,10 top and bottom that are formed at plate 2, in this a pair of front and back through

hole

10a, 10a of the upper end of plate 2 circle of one-tenth level elongation respectively.The circular cross-section corresponding with these holes, that the front and

back tube portion

53,53 of the upper header parts 51 between the upper end of

flat tube

12,12 has same level to elongate.On the other hand, 10b, 10b are become the circle that tilts to elongate to front lower place or the back lower place respectively at the front and back through hole of plate 2 lower ends.Corresponding with these holes, the front and back tube portion 54,54 of the lower header parts 52 between the lower end of

flat tube

12,12 has same circular cross section to front lower place or back lower place inclination elongation.

Referring to figs. 16 and 17, on the another side of the

tube portion

53,53 of upper and lower

header pipe component

51,52 and 54,54 opposing end surface and the plate of

flat tube

12,12, be connected with this end face opposing flat surfaces, thereby upper and

lower collector

57,58 is communicated with the top and bottom of

flat tube

12,12 respectively.

Between upper and

lower collector

57,58, be used for and corrugated flap type fin 24 that air carries out heat exchange is arranged in each between the adjacent flat pipe 12,12.Fin 24 is connected with another side (being the plane surface of the

plate

2,2 of flat tube 12,12) at its opposite side edge.

In the upper and lower

header pipe component

51,52 between the adjacent

flat pipe

12,12 in the evaporimeter 1 of the 3rd embodiment, lower header parts 52 have passage 59,59, this passage 59,59 is formed at middle interconnecting piece and divides 56 opposite side, is used for interconnecting with the front and back tube portion 54,54 of header pipe component 52.

Evaporimeter 1 for described the 3rd embodiment, the import through hole 18 of cold-producing medium from import-outlet contiguous block 27 introduced in the front tube part 53 of each upper header parts 51 that front side upper header 57 is provided, cold-producing medium flows into the upper end, front side of the cold-producing medium conduit 8 of each flat tube 12 from this front tube part 53, be downward through straight separately coolant channel 7 again, so that arrive the lower end, front side of conduit 8, cold-producing medium temporarily flows into the front tube part 54 of the lower header parts 52 that front side lower header 58 is provided from the lower end, front side of this conduit 8, pass through the interconnecting channel 59 of lower header parts 52 then, 59, and flow into the rear tube part 54 that rear side lower header 58 is provided.Subsequently, cold-producing medium flows into the rear side lower end of the cold-producing medium conduit 8 of flat tube 12, raise along straight separately coolant channel 7 again, so that arrive the rear side upper end of conduit 8, and the rear tube part 53 of the upper header parts 51 by rear side upper header 57 is provided, the outlet through hole 28 from piece 27 flows out again.

Evaporimeter 1 for the 3rd embodiment, the circular section that the front side of the lower header parts 52 between

flat tube

12,12 lower ends and rear tube part 54,54 oriented front lower places or the back lower place tilt to elongate is so that steadily discharge when the water that produces by condensation on the outer surface of evaporimeter 1 is full of.

Although it is not shown, the evaporimeter 1 of the 3rd embodiment also can resemble the version of Fig. 8 to separate by the conduit at each plate and form a plurality of otch 15 on the ridge 5 and change, like this, the adjacent separately coolant channel in flat tube 12 7,7 communicates with each other by otch 15.

Between the upper end of the adjacent

flat pipe

12,12 of the evaporimeter 1 that is arranged in the 3rd embodiment and in the upper and lower

header pipe component

51,52 between the lower end, upper header parts 51 can have and are formed at the passage 59,59 that middle interconnecting piece divides 55 opposite side, be used to make the front and

back tube portion

53,53 of header pipe component 51 to interconnect, when opposite, will cold-producing medium be flowed along the direction opposite with described situation with described situation.

Other structure of the evaporimeter 1 of the 3rd embodiment is described identical with first embodiment, and therefore, in relevant drawings, same parts is represented by identical reference number.

Figure 18 and 19 has represented to be used for to separate according to the conduit on the plate 2 of the evaporimeter of first embodiment of the invention second version of ridge 5, that is, being formed at conduit in the cold-producing medium conduit groove 6 of each plate 2 separates the conduit shown in Fig. 2,3 and 5 of ridge 5a, 5b and expression first embodiment and separates U-shaped ridge 5 in configuration be provided with different.Difference in addition is, ridge 5a, 5b on each plate 2 have the top, and this top connects with the flat wall of the relative plate 2 that cold-producing medium conduit groove 6 is provided.

With reference to Figure 18 and 19, each plate 2 of evaporimeter 1 has on its one side: along the periphery ridge 3 of the periphery of this plate; And center ridge 4, this center ridge 4 is in the width center of plate, and the upper end of slave plate extends downwardly into and can form the position of returning conduit.More especially, every couple of

plate

2a, 2b form a plurality of front and back conduit and separate ridge 5a, 5b in its cold-producing medium conduit groove 6, and the height that these conduits separate ridge 5a, 5b is the twice of the degree of depth of conduit groove 6.These ridges 5a, 5b are arranged to separate coolant channel 7 when this forms independently parallel U-shaped in to plate 2a, U-shaped cold-producing medium conduit 8 at flat tube 12 when 2b is installed together.

With reference to Figure 18, these ridges 5a, 5b comprise respectively: straight part 5a1 or 5a2, and this straight part is arranged in straight trough road, the front and

back groove part

6a or 6b of cold-producing medium conduit groove 6; And quadrant arc part 5a2 or 5b2, this quadrant arc part is stretched out from this straight part, and is arranged among the returning part 6c of groove 6.Ridge 5a, 5b are equivalent to half of U-shaped structure just.

When this a pair of

plate

2a, 2b were assembled together under

groove

6,6 situations respect to one another, straight part 5a1, the 5b1 of ridge 5a, 5b and quadrant arc 5a2,5b2 alternately arranged with preset space length.

By this is assembled together to

plate

2a, 2b, relatively

center ridge

4,4 connection that abuts against each other,

periphery ridge

3,3 is connected with each other equally simultaneously, straight part 5a1,5b1 that conduit on each

plate

2a, 2b separates ridge 5a, 5b are connected with another relative plate 2a that conduit groove 6 is provided or the diapire plane surface of 2b on their top with quadrant arc part 5a2,5b2, are formed with U-shaped cold-producing medium conduit 8 in the flat tube 12 thereby make.In the conduit 8 of flat tube 12, connect into U-shaped at this back lateral ridge 5b that front side conduit on plate 2a of

plate

2a, 2b is separated on ridge 5a and another plate 2b, separate parallel U-shaped coolant channel 7 thereby provide.7 one-tenth half-circle-arc shape of branch open walk in returning part.

U-lag road groove 6 return the front and back side corner that conduit groove part 6c is arranged in short circular arc ridge 9a, 9b, to guarantee to improve the heat exchange property of this part.These circular arc ridges 9a, 9b are arranged to alternately arrange with preset space length when this a pair of

plate

2a, 2b are assembled together under

groove

6,6 situations respect to one another.

The other parts of above-mentioned version are identical with first embodiment; For example, each plate 2 is by forging or cutting formation.Therefore, in relevant drawings, identical parts are represented with identical reference number.

For above-mentioned evaporimeter 1, front side on this a pair of

plate

2a, 2b and rear side conduit separate ridge 5a, 5b and comprise straight part 5a1,5b1 and quadrant arc part 5a2,5b2, and formation is equivalent to U-shaped just half.These ridges 5a, 5b are arranged to like this, and promptly when this was assembled together under

groove

6,6 situations respect to one another to

plate

2a, 2b, ridge 5a, 5b alternately arranged with preset space length.Therefore, for example can reduce by the separately number of ridge 5a, 5b that forges or be cut into, simultaneously ridge 5a, 5b on plate 2a, the 2b passable between the standard width of a room in an old-style house every can increasing, and can form lucky half U-shaped, therefore, the advantage that is easy to make

plate

2a, 2b is arranged.

Figure 20 and 21 has represented to be used for the 3rd version that conduit on the plate 2 of evaporimeter 1 of first embodiment of the invention separates ridge 5.This version is with the difference of first embodiment: two kinds of

plate

2a, 2b have conduit to separate U-shaped ridge 5a, 5b, and these conduits separate U-shaped ridge 5a, the 5b arrangement difference in cold-producing

medium conduit groove

6,6; And the top of ridge 5a, 5b on

plate

2a, 2b connects with the diapire plane surface of the groove 6 of

relative plate

2b, 2a.

With reference to this figure, highly for the conduit of

groove

6,6 degree of depth twices separates in the

U-shaped groove

6,6 that U-shaped ridge 5a, 5b be arranged in this a pair of

plate

2a, 2b, with these plates of box lunch 2a, alternately arrange with preset space length when 2b is assembled together face-to-face.

By these

plates

2a, 2b are assembled together face-to-face,

center ridge

4,4 and perimeter ridge 3 relatively relatively.3 abut against each other and are connected, the top that conduit on

plate

2a, 2b separates U-shaped ridge 5a, 5b links to each other with the diapire plane surface of the

groove

6,6 of

relative plate

2b, 2a, therefore, flat tube 12 forms parallel U-shaped coolant channel 7, this coolant channel 7 is divided by ridge 5a, 5b to be opened, and is arranged in the U-shaped cold-producing medium conduit 8.

Cold-producing medium at U-shaped cold-producing

medium conduit groove

6,6 returns in the turning, front and back of conduit groove part 6c, and short circular arc ridge 9a, 9b are used for these parts, so that improve heat exchange property.As this a pair of plate 2a, when 2b is assembled together face-to-face, these front and back short circular arc ridge 9a, 9b alternately arrange with preset space length.

The other parts of above-mentioned version are identical with first embodiment; For example, each plate 2 is by forging or being cut into.Therefore, in relevant drawings, identical parts are represented with identical reference number.

For the evaporimeter 1 that wherein uses two kinds of

plate

2a, 2b, separate U-shaped ridge 5a, 5b at the conduit on two plate 2a, the 2b and be arranged to when these two

plate

2a, 2b are assembled together face-to-face, ridge 5a, 5b alternately arrange with preset space length.Therefore, for example the number by separately ridge 5a, the 5b that forge or be cut into can be still less, simultaneously between ridge 5a, 5b on plate 2a, the 2b standard width of a room in an old-style house every can increasing, thereby the advantage that is easy to make

plate

2a, 2b is arranged.

Figure 22 and 23 has represented to be used for the 4th version that conduit on the plate 2 of evaporimeter 1 of first embodiment of the invention separates ridge 5.This version is with the difference of first embodiment: only provide a plurality of conduits at the latter half of the cold-producing medium conduit groove 6 of each plate 2 and separate ridge 5, but do not have ridge 5 at the first half of groove 6, this first half is made for plane surface; Ridge 5 forms half of U-shaped just; The diapire plane surface of the groove 6 of the relative plate 2 with another in top of the ridge 5 on each plate 2 connects.

With reference to the accompanying drawings, each plate 2 of evaporimeter 1 has: periphery ridge 3, and this periphery ridge 3 is arranged on the one side of plate along the periphery of plate; And center ridge 4, this center ridge is arranged on the identical faces of plate, and in the width center of plate, and the upper end of slave plate extends downwardly into and can form the periphery of returning conduit.Provide a plurality of conduits and separate ridge 5b in the latter half of the cold-producing medium conduit groove 6 of each plate 2, the height that these conduits separate ridge 5b is the twice of the degree of depth of groove 6, but, does not have ridge 5 in the first half of groove 6, and this first half is made plane surface.

Below with reference to the more detailed introduction of Figure 22, be arranged in conduit in the latter half of cold-producing medium conduit groove 6 of each plate 2 and separate ridge 5b and comprise respectively: straight part 5b1, this straight part 5b1 are formed in the rear side straight trough road groove part 6b; And quadrant arc part 5b2, this quadrant arc part 5b2 stretches out from this straight part, and is arranged among the returning part 6c of groove 6, and ridge 5b forms half U-shaped just.

By a pair of

plate

2a, 2b are assembled together face-to-face,

center ridge

4,4 and relative

plate perimeter ridge

3,3 abut against each other and are connected relatively, the top that conduit on

plate

2a, 2b separates U-shaped ridge 5a, 5b links to each other with the diapire plane surface of the cold-producing

medium conduit groove

6,6 of

relative plate

2b, 2a, therefore, flat tube 12 has formed a U-shaped cold-producing medium conduit 8.Preceding lateral ridge 5a on the plate 2a of two

plate

2a, 2b is made for the back lateral ridge 5b on another plate 2b continuous, separates coolant channel 7 thereby form parallel U-shaped in the U-shaped cold-producing medium conduit 8 of flat tube 12.This passage 7 has the semicircular arc returning part.

In the back turning of returning conduit groove part 6c of groove 6, provide short circular arc ridge 9, so that improve the heat exchange property of this part.

For evaporimeter 1, conduit on each plate 2 separates ridge 5 and comprises straight part 5a1 and the quadrant arc part 5a2 that stretches out from this straight part respectively, and forming lucky half U-shaped, the first half of the groove 6 of each plate 2 is a plane surface simultaneously, does not have conduit to separate ridge 5.Therefore, for example can reduce by half, therefore, the advantage that is easy to make

plate

2a, 2b be arranged by the number that forges or cut the ridge 5 that on plate 2, forms.

Figure 24 has represented to be used for a pair of plate of the evaporimeter 1 of first embodiment of the invention, and one of them plate is by dull and stereotyped a replacement.

With reference to the accompanying drawings, the epimere 2 of first embodiment (being plate 2b) comprises as shown in Figure 2: periphery ridge 3, this periphery ridge 3 along the periphery of plate on the one side of plate 2; And center ridge 4, this center ridge 4 is arranged in the same side of plate, and in its width center, and the upper end of slave plate extends to and can form the position that cold-producing medium returns conduit.U-shaped cold-producing medium conduit groove 6 is formed in the plate 2, and in periphery ridge 3 inside, this U-shaped cold-producing medium conduit groove 6 comprises: cold-producing medium straight trough road, front and back groove part 6a, 6b, and they are arranged in the opposite side of center ridge 4; And cold-producing medium returns conduit recessed portion 6c, it be positioned at center ridge below.Plate has a plurality of conduits to separate U-shaped ridge 5, and these U-shaped ridges 5 are formed at the inside of conduit groove 6, and almost extends along the whole length of this conduit groove 6.Plate 2b is fluted 14 at the width middle part of its upper end, and when when the front is seen, this groove 14 is a U-shaped.The upper end of center ridge 4 is connected with the lower end of periphery ridge 3 at this groove 14.The conduit groove 6 of this plate 2b has and another through hole 10 that is formed at its other end in the refrigerant inlet-outlet through hole 10,10 at an end place that is formed at it.

On the other hand, dull and stereotyped 2a does not have the U-shaped groove, separates the U-shaped ridge without any conduit yet, but plane surface is arranged, and contour shape is identical with this epimere 2b.Plate 2a is fluted at the width middle part of its upper end, and when when the front is seen, this groove is a U-shaped.Dull and stereotyped 2a is formed at its upper end and refrigerant inlet-outlet through hole (not shown) of side before and after it in addition.

This flat board 2a and epimere 2b arrange that in pairs every pair of plate is assembled together face-to-face simultaneously.The top of the periphery ridge 3 on epimere 2b is connected with the plane surface of the neighboring part of dull and stereotyped 2a, the top of center ridge 4 is connected with the plane surface of the core of dull and stereotyped 2a simultaneously, and the top of ridge 5 partly is connected with the corresponding plane surface of dull and stereotyped 2a, therefore, flat tube 12 has formed U-shaped cold-producing medium conduit 8, and a plurality of coolant channels that separate 7 are formed in the conduit 8 simultaneously.

The other parts of evaporimeter 1 that comprise described dull and stereotyped 2a are identical with first embodiment; For example, epimere 2b is for example by forging or being cut into.Therefore, in relevant drawings, identical parts are represented with same reference numerals.

Evaporimeter 1 comprises: epimere 2b, this epimere 2b have periphery ridge 3, center ridge 4 and conduit to separate ridge 5; And dull and stereotyped 2a, this dull and stereotyped contour shape is identical with plate 2b.This makes and for example reduces by half by the number that forges or cut the epimere 2b of preparation that therefore the advantage that is easy to make evaporimeter 1 is arranged.

Evaporimeter 1 can carry out following variation, and this evaporimeter is the second embodiment of the invention shown in Figure 11 and 12, and wherein, used a pair of front and back

header pipe component

41,42 becomes the form of rectangular section tube respectively.

Similar with the version shown in Figure 18 and 19, first version has a plurality of conduits in the conduit groove 6 that is formed at each plate 2 to separate ridge 5a, 5b, these ridges 5a, 5b comprise straight part 5a1 or 5a2 and the quadrant arc part 5a2 or the 5b2 that stretch out from this straight part, and be half of U-shaped just, and highly be the twice of the degree of depth of groove 6.As a pair of plate 2a, when 2b is assembled together face-to-face, form flat tube 12, wherein, the U-shaped that ridge 5a, 5b are formed on the independent parallel in the U-shaped cold-producing medium conduit 8 separates coolant channel 7.The top of ridge 5a, the 5b of each plate 2 links to each other with the diapire plane surface of the groove 6 of another plate 2 that faces toward this ridge.

Similar with the version shown in Figure 20 and 21, two kinds of

plate

2a, 2b can be used for second version described

below.Plate

2a, 2b have conduit to separate U-shaped ridge 5a, 5b, and these U-shaped ridges 5a, 5b are arranged in the cold-producing

medium conduit groove

6,6 by different way, and highly are the twice of the degree of depth of groove 6,6.At this moment, the top of ridge 5a, the 5b on each

plate

2a, 2b links to each other with the diapire plane surface of the groove 6 of relative another

plate

2b, 2a.

Identical with the situation of Figure 22 and 23 illustrated embodiments, only in the latter half of cold-producing medium conduit groove 6, be formed with the plate 2 that a plurality of conduits separate ridge 5 and can be used in the 3rd version.The first half of groove 6 does not have ridge, is plane surface.At this moment, the top of the ridge 5 on each plate 2 links to each other with the diapire plane surface of the groove 6 of relative another plate 2.

Flat tube situation as shown in figure 24 is identical, can adopt the combination of epimere 2b and dull and stereotyped 2a in the 4th version, and this epimere 2b is the plate 2 of second embodiment of Figure 12, and contour shape that should flat board 2a is identical with plate 2b.At this moment, the top of the periphery ridge 3 on epimere 2b is connected with the plane surface of the neighboring part of dull and stereotyped 2a, the top of center ridge 4 is connected with the plane surface of the core of dull and stereotyped 2a, and separating the top of ridge 5, conduit partly is connected with the corresponding plane surface of dull and stereotyped 2a, thereby provide flat tube 12, wherein, a plurality of U-shapeds separate coolant channel 7 and are formed in the cold-producing medium conduit 8.

Although it is not shown, wherein there is the evaporimeter 1 of the third embodiment of the invention of upper and

lower collector

57,58 can comprise described a pair of front and back

header pipe component

41,42, the form of each

header pipe component

41,42 one-tenth rectangular tubes, shown in Figure 11 and 12, to replace the spectacle upper and lower

header pipe component

51,52 shown in Figure 16 and 17.

The evaporimeter of Bian Huaing will be called fourth embodiment of the invention like this.Evaporimeter 1 according to fourth embodiment of the invention will use the reference number of Figure 11 and 12 to introduce.Each paired plate 2 has: front edge ridge 33,33, and this front edge ridge 33,33 is arranged on the one side of this plate along the opposite side edge of plate; And center ridge 34, this center ridge 34 is arranged in the same side of plate 2, and in its width center, and forked top and bottom 34a, 34a, this ridge forms by forging or cutting, straight trough road groove part 36a before and after each plate 2 has, 36a, they are formed at the side edge keel, and at the opposite side of center ridge 34, each plate 2 has plane surface at its another side, every pair of plate makes their front and back conduit groove part 36a, be assembled together under the 36b situation respect to one another, so that make relative front edge 33,33 end-to-end links each other, make the top and bottom 34a that comprises bifurcated, the relative center ridge 34 of 34a, 34 end-to-end links each other, thereby form flat tube 32, these flat tube 32 forked open upper end and lower end with and inner front and back straight fluid conduit 38,38, the front and back header pipe component of upper and lower is to 41,42 become the form of rectangular section tube respectively, each header pipe component 41,42 have slit 44,44, this slit 44,44 form in the upper wall 47 of header pipe component or lower wall 43, and arrange with preset space length, by header pipe component 41 is inserted in the bifurcated upper end or the lower end of flat tube, 42 respective slots 44, in 44 and a plurality of flat tubes 32 are arranged in parallel, so that flat tube is connected with header pipe component, thereby the front and back collector of upper and lower pair is communicated with respectively with the bifurcated top and bottom of flat tube 32.At this moment, each side by side before and after rear wall 46 and the antetheca 45 of header pipe component 41,42 be installed to by for example linking together in the U-shaped groove 37,37 of upper end of relative plate 2,2 of each flat tube 32.

To introduce the evaporimeter 1 of the fourth embodiment of the invention that the version of evaporimeter 1 of the third embodiment of the invention that upper and

lower collector

57,58 provides by spectacle upper and lower

header pipe component

51,52 and upper and lower collector provide by the front and back header pipe component of paired rectangular tube form below.

Similar with the embodiment shown in Figure 18 and 19, first version can use

such plate

2,2a, 2b, each

plate

2,2a, 2b form a plurality of front and back conduit respectively and separate ridge 5a, 5b in front side and rear side cold-producing medium

conduit groove part

6a, 6b, the height that these conduits separate ridge 5a, 5b is the twice of the degree of depth of groove part 6a, 6b.These ridges 5a, 5b are arranged to form the parallel independent cooling agent passage 7 that separates in cold-producing medium conduit 8 when every couple of

plate

2a, 2b are assembled together face-to-face.At this moment, the conduit of each plate 2a, the 2b top that separates ridge 5a, 5b links to each other with the diapire plane surface of groove part 6a, the 6b of relative another

plate

2a or 2b.

Similar with the embodiment shown in Figure 20 and 21, second version can use two kinds of plate 2a, 2b.These

plates

2a, 2b separate on the layout of ridge 5a, 5b different in the straight trough road, these separate ridge 5a, 5b and are arranged in the cold-producing

medium conduit groove

6,6, and highly are the twice of the degree of depth of groove 6,6.At this moment, the top that separates ridge 5a, 5b, the straight trough road on each

plate

2a, 2b connects with the diapire plane surface of the groove part of relative another

plate

2a or 2b.

Identical with the situation of Figure 22 and 23 illustrated embodiments, in the 3rd embodiment, can use only in the latter half of cold-producing medium conduit groove 6, to be formed with the plate 2 that a plurality of conduits separate straight ridge 5.The first half of groove 6 does not have ridge, is plane surface.At this moment, the top of the straight ridge 5 on a plate 2 links to each other with the diapire plane surface of the groove 6 of relative another plate 2.

Flat tube situation as shown in figure 24 is identical, can adopt the combination of epimere 2b and dull and stereotyped 2a in the 4th version, and the contour shape of this flat board 2a is identical with plate 2b.At this moment, the top of the

lateral edges ridge

3,33 on epimere 2b is connected with the plane surface of the lateral edge portions of dull and stereotyped 2a, the top of

center ridge

4,34 is connected with the plane surface of the core of dull and stereotyped 2a, and separating the top of straight ridge 5, conduit partly is connected with the corresponding plane surface of dull and stereotyped 2a, thereby

flat tube

12,32 is provided, and this

flat tube

12,32 has front side and the straight cold-producing

medium conduit

8,38 of rear side that is formed at wherein and is formed at a plurality of separately coolant channels 7 in the cold-producing

medium conduit

8,38.

Although introduced heat exchanger 1 of the present invention with reference to embodiment as the motor vehicle air conditioning evaporimeter, but the present invention can also be used for the heat exchanger that uses in motor vehicle or industry, for example evaporimeter, condenser, oil cooler, intercooler, heater core etc.

When heat exchanger 1 of the present invention for example is used as the heater heat exchanger of heating system, because the whole width of fluid conduit equals the contact width of heat radiator fin 24, therefore can high efficient heat exchanging.And internal flow can be to pass through with the relation of air inversion.This causes efficiently increasing temperature, thereby obtains higher effectiveness of heat exchanger and obtain compact apparatus.

Claims

1. a heat exchanger comprises that plate is right, and wherein, each right plate of described plate has: the periphery ridge, and described periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and the upper end of slave plate extends downwardly into and can form the position of returning conduit, these ridges are by forging or cutting formation, each right plate of described plate has the U-lag road groove that is formed at periphery keel portion, described U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below the described center ridge, described conduit groove has two fluid inlets-outlet through hole, one of them through hole is formed at an end of described conduit groove, another through hole is formed at the other end of described conduit groove, each right plate of described plate has plane surface on its another side, each right plate of described plate is assembled together under their U-lag road groove situation respect to one another, so that make the end-to-end link each other of relative periphery ridge, make the end-to-end link each other of relative center ridge, thereby formation flat tube, described flat tube inside has U-shaped fluid conduit, like this, a plurality of flat tubes are arranged in parallel, header pipe component inserts between each upper end to the adjacent flat pipe simultaneously, so that the front header and the rear header that are communicated with the right upper end of described adjacent flat pipe are provided, header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective inlets-outlet through hole of the plate that described tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between described tube portion.

2. a heat exchanger comprises that plate is right, and wherein, each right plate of described plate has: the edge ridge, and ridge integral body in described edge is U-shaped, along the opposite side edge of plate and lower limb and be arranged on the one side of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and forked upper end, described center ridge extends downwardly into from the upper end can form the position of returning conduit, these ridges are by forging or cutting formation, each right plate of described plate has the U-lag road groove that is formed at U-shaped edge keel portion, described U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below the described center ridge, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their U-lag road groove situation respect to one another, so that make the end-to-end link each other of relative U-shaped edge ridge, make the relative center ridge end-to-end link each other that comprises the bifurcated upper end, thereby form a flat tube, described flat tube has the bifurcated open upper end, and its inside has U-shaped fluid conduit, a pair of front and back header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the slit in the lower wall that is formed at it, these slits are arranged with preset space length, by in the respective slots in the header pipe component before and after the bifurcated open upper end of flat tube is inserted a plurality of flat tubes being arranged in parallel, so that flat tube is linked to each other with header pipe component, and provide the front and rear collector that is communicated with the bifurcated open upper end of flat tube.

3. heat exchanger according to claim 1 and 2, it is characterized in that: a plurality of conduits separate the U-shaped ridge and are formed in the U-lag road groove of each plate by forging or cutting, each described plate is to being assembled together under their groove situation respect to one another, and each relative conduit separates the U-shaped ridge to end-to-end link each other, so that be formed on the interior a plurality of U-shaped separate fluid passages of U-shaped fluid conduit of flat tube inside.

4. heat exchanger according to claim 1 and 2, it is characterized in that: conduit separated ridge before and after each right plate of described plate formed in the conduit groove, the height that described conduit separates ridge is the twice of the degree of depth of conduit groove, and each conduit separates straight part and quadrant arc part in the front or rear straight trough road groove part that ridge is included in the conduit groove, described quadrant arc part is stretched out from the lower end of straight part, and be arranged in the returning part of conduit groove, conduit separates ridge by forging or cutting formation, and when being assembled together under to the conduit groove situation respect to one another at them, each described plate alternately locatees, each described plate is to being assembled together under their conduit groove situation respect to one another, so that the top that conduit separates ridge before and after making is with the formation conduit groove of plate and separate the relative diapire plane surface of ridge with described conduit and be connected, thus in the U-shaped fluid conduit of flat tube inside formation U-shaped separate fluid passage.

5. heat exchanger according to claim 1 and 2, it is characterized in that: each right plate of described plate forms conduit and separates ridge in its conduit groove, the height that described conduit separates ridge is the twice of the degree of depth of conduit groove, and by forging or cutting formation, so that alternately locate, when each described plate when under their groove situation respect to one another, being assembled together, each described plate is to being assembled together, so that top that conduit on each right plate of plate separates ridge is connected with plane surface facing to the diapire of the conduit groove of another plate of described plate, thereby formation U-shaped separate fluid passage in the U-shaped fluid conduit in flat tube.

6. heat exchanger according to claim 1 and 2, it is characterized in that: each right plate of described plate forms conduit and separates ridge in the latter half of its conduit groove, the height that described conduit separates ridge is the twice of the degree of depth of conduit groove, and by forging or cutting formation, the first half of the conduit groove of each plate plane surface shape that its diapire provides of serving as reasons, there is not conduit to separate ridge, each described plate is to being assembled together under its groove situation respect to one another, so that top that its conduit separates ridge is linked to each other with diapire plane surface facing to the conduit groove of the described plate that separate ridge, thereby formation U-shaped separate fluid passage in the U-shaped fluid conduit in flat tube.

7. a heat exchanger comprises epimere, and each epimere has: the periphery ridge, and described periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and the upper end of slave plate extends downwardly into and can form the position of returning conduit, these ridges are by forging or cutting formation, each epimere has the U-lag road groove that is formed at periphery keel portion, described U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below the described center ridge, described conduit groove has two fluid inlets-outlet through hole, one of them through hole is formed at an end of described conduit groove, another through hole is formed at the other end of described conduit groove, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, and have and corresponding two fluid inlets of described through hole-outlet through hole, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge of epimere links to each other with the plane surface of the respective center of flat board part, therefore form the inner flat tube that U-shaped fluid conduit is arranged, like this, a plurality of flat tubes are arranged in parallel, header pipe component inserts between each upper end to the adjacent flat pipe simultaneously, so that the front header and the rear header that are communicated with the right upper end of described adjacent flat pipe are provided, header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective inlets-outlet through hole of the plate that described tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between described tube portion.

8. a heat exchanger comprises epimere, and each epimere has: the edge ridge, and described edge ridge is whole U-shaped, along the opposite side edge of plate and a lower limb and be arranged on the one side of plate; And center ridge, described center ridge is arranged on the described face of plate in the width center of described plate, and forked upper end, described center ridge extends downwardly into from the upper end can form the position of returning conduit, these ridges are by forging or cutting formation, each epimere has the U-lag road groove that is formed at U-shaped edge keel portion, described U-lag road groove comprises the front and back conduit groove part of the opposite side that is formed at center ridge and is positioned at and returns the conduit groove part below the described center ridge, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge that comprises the bifurcated upper end of epimere links to each other with the plane surface of the respective center part of flat board, thereby formation flat tube, described flat tube has the bifurcated open upper end, and inside has U-shaped fluid conduit, a pair of front and back header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the slit in the lower wall that is formed at it, these slits are arranged with preset space length, by in the respective slots in the header pipe component before and after the bifurcated open upper end of flat tube is inserted a plurality of flat tubes being arranged in parallel, so that flat tube is linked to each other with header pipe component, and provide the front and rear collector that is communicated with the bifurcated open upper end of flat tube.

9. one kind according to claim 7 or 8 described heat exchangers, it is characterized in that: a plurality of conduits separate the U-shaped ridge and are formed in the U-lag road groove of each epimere by forging or cutting, each epimere and each flat board are assembled together under the conduit of epimere separates U-shaped ridge and situation that the plane surface of the respective center part of flat board links to each other face-to-face, so as in the U-shaped fluid conduit of flat tube inside a plurality of U-shaped separate fluid passages of formation.

10. a heat exchanger comprises that plate is right, and wherein, each right plate of described plate has: the periphery ridge, and described periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, described center ridge is arranged on the described face of plate in the width center of described plate, and vertical the extension, these ridges are by forging or cutting formation, each right plate of described plate has and is formed at periphery keel portion and at the front and back of center ridge opposite side conduit groove part, the conduit groove part has the through hole of the top and bottom that are formed at it respectively before and after each, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their conduit groove part situation respect to one another, so that make the end-to-end link each other of relative periphery ridge, make the end-to-end link each other of relative center ridge, thereby formation flat tube, fluid conduit before and after described flat tube inside has, like this, a plurality of flat tubes are arranged in parallel, the upper and lower header pipe component inserts each respectively between the upper end of adjacent flat pipe and between the lower end of adjacent flat pipe simultaneously, so that the upper header and the lower header that are communicated with the right top and bottom of described adjacent flat pipe are provided, each header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective through hole of the plate that described tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between described tube portion.

11. a heat exchanger comprises that plate is right, wherein, each right plate of described plate has: lateral edges ridge, described lateral edges ridge are along each opposite side edge of plate and be arranged on the one side of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and the lower end of forked upper end and bifurcated, these ridges are by forging or cutting formation, each right plate of described plate has and is formed at lateral edges keel portion and at the front and back conduit groove part of the opposite side of center ridge, each right plate of described plate has plane surface on its another side, each described plate is to being assembled together under their conduit groove part situation respect to one another, so that make the end-to-end link each other of opposite side edge ridge, make the relative center ridge end-to-end link each other that comprises the bifurcated top and bottom, thereby form a flat tube, described flat tube has bifurcated open upper end and lower end, and fluid conduit before and after inside has, the a pair of front and back of top a pair of front and back header pipe component and bottom header pipe component becomes to have the form of the pipe of square-section respectively, each header pipe component has the upper wall that is formed at it or the slit in the lower wall, these slits are arranged with preset space length, by the bifurcated open upper end of flat tube or lower end being inserted in the respective slots in the header pipe component a plurality of flat tubes are arranged in parallel, so that flat tube is linked to each other with header pipe component, and the front and rear collector that the top that is communicated with the bifurcated open upper end and the lower end of flat tube respectively is provided to and the front and rear collector of bottom right.

12. one kind according to claim 10 or 11 described heat exchangers, it is characterized in that: a plurality of conduits separate ridge and are formed in the front and back conduit groove part of each plate by forging or cutting, each described plate is to being assembled together under their groove part situation respect to one another, so that make each relative conduit separate ridge, and be formed on separate fluid passage in the front and back fluid conduit of flat tube inside to end-to-end link each other.

13. one kind according to claim 10 or 11 described heat exchangers, it is characterized in that: conduit separated ridge before and after each plate formed in the conduit groove part before and after it, the height that described conduit separates ridge is the twice of the degree of depth of groove part, the front and back conduit separates ridge by forging or cutting formation, and alternately locate when under their groove part situation respect to one another, being assembled together when each described plate, each described plate is to being assembled together Face to face, so that the top that conduit separates ridge before and after making connects with the diapire plane surface of the groove part of relative plate, thus in the fluid conduit of the front and back of flat tube inside formation separate fluid passage.

14. one kind according to claim 10 or 11 described heat exchangers, it is characterized in that: each right plate of plate forms conduit and separates ridge in the conduit groove part before and after each at it, the height that described conduit separates ridge is the twice of the degree of depth of groove part, described conduit separates ridge by forging or cutting forms the right front and back conduit that makes each plate and separates ridge and alternately locate when being assembled together face-to-face, each described plate is to being assembled together under their groove part situation respect to one another, so that top that the front and back conduit of each right plate of plate separates ridge is connected with diapire plane surface facing to the groove part of another right plate of its this plate, thereby formation separate fluid passage in the front and back fluid conduit in flat tube.

15. one kind according to claim 10 or 11 described heat exchangers, it is characterized in that: each plate forms a plurality of conduits and separates ridge in its one of front and back conduit groove part, the height that described conduit separates ridge is the twice of the degree of depth of groove part, described conduit separates ridge by forging or cutting formation, another conduit groove part has the diapire plane surface, described diapire plane surface does not have conduit to separate ridge, each described plate is to being assembled together under its groove part situation respect to one another, so that the top that makes conduit separate ridge links to each other with the diapire plane surface of the groove part of the plate that faces toward it, thereby forms the separate fluid passage in the front and back fluid conduit in flat tube.

16. a heat exchanger comprises epimere, each epimere has: the periphery ridge, and described periphery ridge is arranged on the one side of plate along the periphery of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and vertical the extension, these ridges are by forging or cutting formation, each epimere has and is formed at periphery keel portion and at the front and back of center ridge opposite side conduit groove part, the conduit groove part has the through hole of the top and bottom that are formed at it respectively before and after each, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, and have and the corresponding fluid inlet of described through hole-outlet through hole, the top of the periphery ridge of epimere links to each other with the neighboring of flat board, the top of the center ridge of epimere links to each other with the plane surface of the respective center of flat board part, therefore form the inner flat tube that front and back fluid conduit is arranged, like this, a plurality of flat tubes are arranged in parallel, the upper and lower header pipe component inserts each respectively between the upper end of adjacent flat pipe and between the lower end of adjacent flat pipe simultaneously, so that the upper header and the lower header that are communicated with the right top and bottom of described adjacent flat pipe are provided, each header pipe component comprises: a pair of front and back fluid is by tube portion, and the respective through hole of the plate that described tube portion and described adjacent flat pipe are right is communicated with; And the coupling part between described tube portion.

17. heat exchanger according to claim 16, it is characterized in that: be arranged between the right upper end of each adjacent flat pipe and there is a passage one coupling part in the upper and lower header pipe component between the lower end, described passage makes the fluid of described header pipe component interconnect by tube portion.

18. a heat exchanger comprises epimere, each epimere has: lateral edges ridge, described lateral edges ridge are along each opposite side edge of plate and be arranged on the one side of plate; And center ridge, described center ridge is arranged on the described one side of plate in the width center of described plate, and the lower end of forked upper end and bifurcated, these ridges are by forging or cutting formation, each epimere has and is formed at lateral edges keel portion and at the front and back conduit groove part of the opposite side of center ridge, each epimere has plane surface on its another side, and each epimere cooperates with each platen surface opposite, each described flat board has contour shape identical with epimere and same size, the top of the lateral edges ridge of epimere links to each other with the lateral edges of flat board, the top of the center ridge that comprises the bifurcated top and bottom of epimere links to each other with the plane surface of the respective center of flat board part, thereby formation flat tube, described flat tube has bifurcated open upper end and lower end, and fluid conduit before and after its inside has, the front and back header pipe component on top to the front and back header pipe component of bottom to becoming to have the form of the pipe of square-section respectively, each header pipe component has the upper wall that is formed at it or the slit in the lower wall, these slits are arranged with preset space length, by the bifurcated open upper end of flat tube or lower end being inserted in the respective slots in the header pipe component a plurality of flat tubes are arranged in parallel, so that flat tube is linked to each other with header pipe component, and the front and back header pipe component that the top that is communicated with the bifurcated open upper end and the lower end of flat tube respectively is provided is to right with the front and back header pipe component of bottom.

19. one kind according to claim 16 or 18 described heat exchangers, it is characterized in that: each epimere has by the conduit that forges or cutting is formed in the front and back conduit groove part of described epimere and separates ridge, each epimere cooperates with each platen surface opposite, so that the top that makes conduit separate ridge is connected with the plane surface of the appropriate section of flat board, thereby forms the separate fluid passage in the fluid conduit of the front and back of flat tube inside.

20. one kind according to any described heat exchanger in the claim 1,7,10 and 16, it is characterized in that: be arranged in fluid that header pipe component between the end of every pair of adjacent flat pipe has it by tube portion, the plane surface connection of described tube portion on the another side of the right relative plate of their opposing end surface and flat tube.

21. one kind according to any described heat exchanger in the claim 1,7,10 and 16, it is characterized in that: temporarily keep the hobnail of header pipe component to be arranged on the respective edges of import-outlet through hole of determining each plate end.

22. one kind according to any described heat exchanger in the claim 3 to 6,9,12 to 15 and 19, it is characterized in that: the conduit that a plurality of notch shape are formed in each plate separates chi chung, so that the adjacent separate fluid passage of flat tube inside is communicated with each other by described otch.

23. one kind according to any described heat exchanger in the claim 1,2,7,8,10,11,16 and 18, it is characterized in that: fin be arranged in be contained in the flat tube that is arranged in parallel each between the adjacent flat pipe, and the plane surface on the another side of the right plate of the opposite side edge of fin and flat tube is connected.