CN207491429U

CN207491429U - For cooling down multiple layers of electronic module of heat exchanger assemblies and heat exchanger module

Info

Publication number: CN207491429U
Application number: CN201721352686.6U
Authority: CN
Inventors: K·M·A·阿贝尔斯; B·A·肯内; M·K·A·马彻勒; 余江锋
Original assignee: Dana Canada Corp
Current assignee: Dana Canada Corp
Priority date: 2017-03-06
Filing date: 2017-10-19
Publication date: 2018-06-12
Anticipated expiration: 2027-10-19
Also published as: JP2018148208A; CN108541182A; CN108541182B

Abstract

The utility model is related to a kind of for cooling down multiple layers of heat exchanger assemblies of electronic module, the lamination flat tube including limiting multiple parallel fluid flow channels, the flat tube is separated by the space for being used to receive the electronic unit.One or more flowing limitation rib is arranged at least some of described fluid flowing passage, to reduce the height of the fluid flowing passage outside the heat transfer region by least part of the width along the fluid flowing passage the fluid stream that is partially blocked by between at least one manifold and the heat transfer region, to improve the flow distribution of the heat-transfer fluid between the fluid flowing passage of the heat exchanger within, and minimize the bypass flow of the outer edge of the fluid flowing passage.The utility model further relates to the heat exchanger module for including above-mentioned heat exchanger assemblies.

Description

For cooling down multiple layers of electronic module of heat exchanger assemblies and heat exchanger module

Technical field

This disclosure relates to for being arranged in the compact heat exchanger of the two-sided cooling of the heat-generating electronic part in multiple layers.

Background technology

Electric vehicle (" EV ") and hybrid electric vehicle (" HEV ") employ the power electronics dress for generating a large amount of thermal energy It puts.The possibility that this thermal energy must dissipate to avoid these devices damages or reduces the excessive heating of performance.

Vehicle electric power electronic device generally includes one or more heat-generating electronic parts, such as transistor, resistance, capacitance, Field-effect transistor (FETS), igbt (IGBTs), power converter, DC-to-dc converter and direct current- A-c transducer.These components may be mounted on the bottom plate of such as printed circuit board.

Although the structure of vehicle electric power electronic device is different, in some applications power electronic equipment be provided with along It can influence the relatively flat face of cooling.IGBTs is the example for the power electronic equipment that can have this structure.Typically EV or HEV can include many IGBTs, many IGBTs can by it is ternary it is multigroup in the form of be arranged.IGBTs It can be cooled down by one or two for making in the relatively flat face of each IGBT with cooling fin contact.In order to enhance heat transfer, The cooling fluid of such as air or liquid coolant can recycle or cycle through cooling fin along cooling fin.For example, such as exist The commonly assigned U.S. Provisional Application No. 62/433 that on December 14th, 2016 submits, disclosed in 936, one kind is used for electronics The heat exchanger of the two-sided cooling of component can include the relatively flat with being arranged in one or more of individual layer electronic unit The pair of radiating fan of face contact.

Due to space limitation and cost consideration, heat-generating electronic part is encapsulated in a manner of compact array and is somebody's turn to do for cooling The heat exchanger that the both side surface of each electronic unit in array provides single soldering can be advantageous.Such as it is 2016 Know such heat exchanger in the commonly assigned international application no PCT/CA2016/051010 that on August is submitted for 26. However, still remain the simple and effective of the two-sided cooling of the heat-generating electronic part to being used to encapsulate in a manner of compact array Heat exchanger, the heat exchanger are provided with effective thermal communication of electronic unit and along all electronic units in the encapsulation The balanced flowing of the cooling fluid of side surface.

Utility model content

In an aspect, a kind of heat exchanger assemblies are provided, including：Heat exchanger core, the core, heat exchanger Body includes multiple flat tubes, wherein each flat tube surrounds elongate fluid flow channel, the elongate fluid flow channel With roof, bottom wall and a pair of of the outer edge distanced from one another cross opened, wherein the width of the fluid flowing passage is limited to institute It states between outer edge；

Wherein in stacked, the fluid flowing passage is along the height of the lamination into putting down each other for flat tube arrangement The relationship in the ranks separated so that for receiving High definition of the multiple spaces of heat-generating electronic part throughout the lamination adjacent Flat tube between, wherein the flat tube limits heating surface, the flat tube is suitable for along the heating surface and institute State heat generating components thermo-contact；Wherein described flat tube is bonded together to form inlet manifold and outlet manifold, in the manifold Each extends throughout the height of the lamination, wherein the inlet manifold and the first of each fluid flowing passage Hold in direct fluid communication, and the outlet manifold and the second end in direct fluid communication of each fluid flowing passage；Its In the fluid flowing passage of each flat tube there is heat transfer region between the manifold, wherein turbulence excess Insertion piece is arranged on inside the heat transfer region, and the heat transfer region in wherein each fluid flowing passage and institute At least one heating surface stated on the outer surface of flat tube is directly opposite, wherein the fluid flowing passage is in the biography There is maximum height, wherein the turbulence excess insertion piece and the roof and bottom between the roof and bottom wall in thermal region Wall directly thermally contacts；Wherein described heat exchanger assemblies further comprise being arranged at least some of described fluid flowing passage Interior one or more flowing limitation ribs, to be reduced by least part of the width along the fluid flowing passage The height of the fluid flowing passage outside the heat transfer region and be partially blocked by least one manifold and institute State the fluid stream between heat transfer region.

In one embodiment, each in the flat tube includes the elongated core plate of a pair of of cooperation, the elongated core plate Raised at its opposite end to have hole boss, the boss of the wherein protrusion of adjacent flat pipe is joined together to limit The fixed inlet manifold and the outlet manifold, and the central part restriction of the core plate of one pair of which cooperation is each described flat The roof and bottom wall of pipe.

In one embodiment, the protrusion has hole boss to have a height so that is inserted into the heat-generating electronic part To before the space between the flat tube, the height of each in the space is less times greater than the heating part The thickness of one in part, to allow in the space that the heat-generating electronic part is inserted between the heating surface；Its Described in boss be respectively provided with compressible sidewall areas, edge is passed through with the height for allowing the space between the flat tube The compression axis for the height for being parallel to the manifold applies force to reduce；Each in wherein described core plate is further Including one or more support protruding portion, each in one or more of support protruding portions is located at the neighbouring protrusion In the substantially planar region of the base portion of one in boss；Each in wherein described support protruding portion is from the core plate Downside extends in the opposite direction along the boss with the protrusion from the side that the core plate extends；And wherein described support protrudes The High definition of each in portion is the distance between its base portion and top surface, and the height is so that the support protrudes The top surface in portion and the periphery flange of the core plate are substantially coplanar；So that when the core plate is assembled with shape During into the flat tube, the support protruding portion of a core plate of each flat tube will be with forming the flat tube The support protruding portion contact of other core plates.

In another aspect, a kind of heat exchanger module is provided, including the raised heat exchanger for having hole boss Component, the protrusion have hole boss to have compressible sidewall areas, and the heat exchanger module further comprises multiple institutes Heat generating components and multiple hard compression fixing pieces are stated, during the heat exchanger module group assembling, along each manifold The height compressing force is applied to the heat exchanger to make the heating surface of the flat tube and the fever Before the step of side surface thermo-contact of electronic unit, the multiple hard compression fixing piece is applied to the heat exchanger mould Group.Each compression fixing piece is substantially U-shaped, has the thickness substantially the same with the thickness of the heat-generating electronic part Degree；Each in wherein described compression fixing piece may be inserted between adjacent flat tube, so as to along three of them side ring Around the boss of the protrusion of the flat tube, and the core plate is prevented to be not intended to during the step of applying compressing force Deformation.

In one embodiment, the heat exchanger has U-shaped flow structure, and the U-shaped flow structure has positioned at described Inlet and outlet manifold at the first end of core；Each second flat tube in wherein described flat tube only with the import Manifold fluid connect and limit inlet fluid flowing channel, and each in other flat tubes only with the outlet discrimination Fluid communication and limit outlet fluid flowing passage；And wherein communicating passage is arranged on the inlet fluid flowing channel In each is adjacent between one in the outlet fluid flow channel, each in the communicating passage is located at institute State core near the second end in the manifold distal side.According to this embodiment, the portion of the formation manifold of the flat tube Divide in the nose portion of the flat tube.According to this embodiment, the outer edge of the flat tube can be provided with spaced apart Hole, pull rod pass through the hole spaced apart, the pull rod have is provided with nut and be suitable for compress flat tube it is described The end of thread that lamination is thermally contacted with electronic unit formation.

In one embodiment, the flat tube of U-shaped flow heat exchanger by the tubulose of tubular pipeline form connect come The flat tube of engagement, the tubular pipeline and the core is integrally formed or is soldered to the flat tube of the core； Wherein each tubulose communicating passage includes adjustable for height sliding seal, and the adjustable for height sliding seal includes First tubular sections and the second tubular sections, each in first tubular sections and the second tubular sections are fixed to described One in flat tube；The internal diameter of wherein described second tubular sections is more than the outer diameter of first tubular sections, and annular Flexible sealing component is arranged between the diameter of first and second tubular sections.Including the U shapes flow heat exchanger Heat exchanger module assembling during, by the flexible sealing component be applied to the described first and/or second tubular sections；It is logical It crosses first tubular sections being inserted into second tubular sections and connect to form the tubular manifold and the tubulose Circulation passage assembles the heat exchanger assemblies；Then by one or more heat-generating electronic parts be inserted into adjacent flat tube it Between the space in；And compressing force is applied along the height of each manifold using pull rod as described above The heat exchanger is added on, so that the heating surface of the flat tube is made to be connect with the side surface heat of the heat-generating electronic part It touches.

In another aspect, a kind of heat exchanger module is provided, including U-shaped flow heat exchanger described above, Described in the first tubular sections reception connected in second tubular sections to form the tubular manifold with the tubulose Channel；One or more of wherein described heat-generating electronic part is received in the space between adjacent flat tube；With Heat exchanger assemblies described in and its are maintained by multiple pull rods under compression, wherein the pressure applied by the pull rod Contracting power is guided along the height of each manifold so that the side of the heating surface and the heat-generating electronic part Surface thermally contacts.

Description of the drawings

The utility model will be described by way of example only with reference to the drawings now, wherein：

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

Fig. 2 is the sectional view along the line 2-2 ' of Fig. 1；

Fig. 3 is the top perspective of the core plate of the heat exchanger of Fig. 1；

Fig. 4 is the bottom perspective view of the core plate of the heat exchanger of Fig. 1；

Fig. 5 is the left end of the plate pair of heat exchanger being obtained in the plane identical with the cross section of Fig. 2, showing Fig. 1 Amplification partial cutaway view；

Fig. 6 is the feature transverse cross-sectional view along the line 6-6 ' of Fig. 1；

Fig. 7 be show before the compression, the part of the heat exchanger module of heat exchanger comprising claim 1 Enlarged elevation figure；

Fig. 8 is analogous to the sectional view of Fig. 7, shows heat exchanger module after being compressed；

Fig. 9 is the isolation perspective view for compressing fixing piece；

Figure 10 is the part for the multiple compression fixing pieces for showing one end according to first embodiment, applied to heat exchanger Longitudinal sectional drawing；

Figure 11 is the part for the multiple compression fixing pieces for showing one end according to first embodiment, applied to heat exchanger Longitudinal sectional drawing；

Figure 12 is the feature of a part of Figure 11, shows and is compressed between fixing piece and the protruding portion of core plate during compression Cooperation；

Figure 13 is the top perspective of heat exchanger module according to second embodiment；

Figure 14 is the top perspective of the core plate of the heat exchanger module of Figure 13；

Figure 15 is the bottom perspective view of the core plate of the heat exchanger module of Figure 13；

Figure 16 is the partial longitudinal sectional view by the plate pair of the heat exchanger module of Figure 13；

Figure 17 is by having the partial longitudinal sectional view of the plate pair of heat exchanger module for substituting flowing limitation rib and constructing；

Figure 18 is by having the partial longitudinal sectional view of the plate pair of heat exchanger module for substituting flowing limitation rib and constructing；

Figure 19 is by having the partial longitudinal sectional view of the plate pair of heat exchanger module for substituting flowing limitation rib and constructing；

Figure 20 is by having the partial longitudinal sectional view of the plate pair of heat exchanger module for substituting flowing limitation rib and constructing；

Figure 21 is by having the partial longitudinal sectional view of the plate pair of heat exchanger module for substituting flowing limitation rib and constructing；

Figure 22 is the top perspective of the core plate with the heat exchanger module for substituting flowing limitation rib construction；

Figure 23 is the bottom perspective view of the core plate of Figure 23；

Figure 24 is the partial lateral sectional view by the plate pair with flowing limitation rib construction of Figure 22 and 23；

Figure 25 is the side perspective view according to the heat exchanger of third example embodiment；

Figure 26 is the front perspective view of the heat exchanger of Figure 25；

Figure 27 is the heat exchanger of Figure 25 added with pull rod；And

Figure 28 is the sectional view for adjustably engaging the slip elastic sealing element of the plate pair of the heat exchanger of Figure 25.

Specific embodiment

It is the detailed description according to the heat exchanger of certain example embodiments below.Heat exchanger described herein is packet The compact heat exchanger of a core plate is included, and is sometimes referred to herein as " stacked plates " heat exchanger.In order to minimize Cost, most of or all core plates in lamination can be mutually the same.Moreover, heat exchanger can have the whole knot of soldering Structure.Since the soldering of heat exchanger carries out and is usually directed to heat entire heat exchanger assemblies in soldering oven at high temperature, Therefore heat exchanger core plate must be before the assembling including heat exchanger and the heat exchanger module of heat-generating electronic part with regard to pricker It is welded together.

The core plate for forming heat exchanger provides heating surface spaced apart, and the heating surface spaced apart is arranged as and has The multiple heat-generating electronic parts for having opposite flat side surface thermally contact, wherein the planar side table that each heat-generating electronic part is opposite Each in face is thermally contacted with the heating surface of heat exchanger, and wherein heat-generating electronic part with compact array, such as The mode of multiple layers spaced apart is arranged.

In order to allow the assembling of heat exchanger module, the core plate of heat exchanger is provided with the heat exchanger pressure after allowing soldering To generate the feature of the permanent deformation of heat exchanger, the permanent deformation of the heat exchanger makes its heating surface and fever electronics for contracting Between fluid flowing passage of the opposite flank close thermal contact of component without negatively influencing heat exchanger within The flow distribution of heat-transfer fluid.

In order to maximize cooling efficiency, the core plate of heat exchanger is provided between fluid flowing passage in order to control within Fluid flow distribution provides enough fluid back pressures and also reduces the feature of the bypass flow in fluid flowing passage.

Heat exchanger assemblies 10 and heat exchanger according to the first example embodiment are described now below in reference to Fig. 1 to 6 Module 42, the heat exchanger module 42 include heat exchanger assemblies 10 and multiple heat-generating electronic parts 44.

Heat exchanger assemblies 10 include core, and the core includes multiple elongated flat pipes 22, the multiple elongated flat Each in pipe 22 surrounds elongate fluid flow channel 36.Flat tube is together with fluid flowing passage along the height of lamination (along the axis C of Fig. 1) is arranged in stacked with the relationship spaced in parallel to each other opened so that for receiving heat-generating electronic part 44 Multiple spaces be limited between adjacent flat tube 22 throughout the height of lamination, wherein flat tube 22 limits heating surface 40, flat tube 22 is suitable for thermally contacting with heat generating components 44 along the heating surface 40.Flat tube 22 is bonded together to be formed Inlet manifold 32 and outlet manifold 34, each in manifold 32,34 extend throughout height of lamination, wherein inlet manifold 32 with The first end in direct fluid communication of each fluid flowing passage 36, and outlet manifold 34 and each fluid flowing are logical The second end in direct fluid communication in road 36.First and second ends of fluid flowing passage are longitudinally spaced apart along axis A.

In the present embodiment, heat exchanger 10 is made of core plate, including multiple intermediate core plates 12, at the top of plate lamination Top core plate 14 and the bottom core plate 16 at the bottom of plate lamination.Each flat tube 22 includes a pair of of core plate 12,14,16, And therefore flat tube 22 is referred to herein as " plate is to 22 ".In the present embodiment, all intermediate core plates 12 and top plate 14 all that This is identical, and is different from bottom plate 16, as described further below.Although import accessory 18 and outlet accessory 20 are hermetically Fixed to top plate 14, but the position of import accessory and outlet accessory 18,20 is variable, as described further below.

In the present embodiment, each core plate 12,14,16 includes the flat peripheral flange of the central part 26 around protrusion 24.The core plate 12,14,16 of each flat tube 22 is sealingly engaged at along its periphery flange 24 in a manner of arranging face-to-face Together.In the illustrated embodiment, the flat tube 22 formed by multipair intermediate plate 12 is mutually the same, and with by intermediate plate 12 and The most upper flat tube 22 that top plate 14 is formed is identical.Due to being discussed below, formed by intermediate plate 12 and lower plate 16 most lower Flat tube is different from other flat tubes 22, and is labeled as 22 ' in fig 1 and 2.

Core plate 12,14,16 is generally an elongated, wherein each intermediate opposite end of core plate 12 and the opposite end of top plate 14 are set Be equipped with protrusion has hole boss 28.The boss 28 of protrusion is located in the central part 26 of protrusion of each core plate 12,14.Bottom plate 16 Lack the boss 28 of protrusion, can instead have center substantially planar and that the bottom of heat exchanger 10 is sealed without perforation Part 26, as shown in Fig. 2.

Each in flat tube 22 has the boss 28 of a pair of protrusion protruded from its two opposite sides, wherein adjacent flat The boss 28 of the protrusion of pipe 22 is bonded together, to limit inlet manifold 32 and outlet discrimination at the opposite end of heat exchanger 10 Pipe 34.Bottom flat tube 22 ' has the boss 28 of a pair of protrusion only protruded from side thereon, by described only from pleurapophysis thereon Go out this to protrusion boss 28 be joined to adjacent flat pipe protrusion boss 28.Inlet manifold 32 is prolonged from import accessory 18 The bottom plate 16 of closure is reached, and outlet manifold 34 extends to the bottom plate 16 of closure from outlet accessory 20.

Each flat tube 22,22 ' surrounds fluid flowing passage 36, the fluid flowing passage 36 along longitudinal axis A from into Mouth manifold 32 extends to outlet manifold 34, and prolongs between the boss 28 of the protrusion at the opposite end of each flat tube 22,22 ' It stretches.Fluid flowing passage 36 is respectively provided with roof and bottom wall, and in the present embodiment, it is each that the fluid flowing passage 36 includes composition The central part 26 of the core plate 12,14,16 of flat tube 22.Fluid flowing passage 36 is respectively provided with transverse to each other (along Fig. 1's Axis B) a pair of of outer edge spaced apart, the width of wherein fluid flowing passage 36 is limited between outer edge.In the present embodiment In, the outer edge of fluid flowing passage 36 such as can see that in figure 6 for example positioned at the inside being located next to of periphery flange 24 's.Roof 2, bottom wall 4 and the outer edge 6,8 of flat tube 22 are marked in figure 6.It should be understood that pipe 22 is not necessarily by multipair The formation of core plate 12,14,16.On the contrary, pipe 22 can by squeeze or fold and formed along the one piece of joint seal.

Each fluid flowing passage 36 has the heat transfer region 76 between manifold 32,34, and wherein turbulence excess is inserted into Part 38 can be arranged in the heat transfer region 76 of each flat tube 22.Each in turbulence excess insertion piece 38 can include wing Piece or turbulizer.As used in this article, term " fin " means the multiple axis connected by side wall with " turbulizer " The wavy turbulence excess insertion piece of ridge or ridge shape object to extension, wherein ridge are round ends or flat.As herein It limits, " fin " has continuous ridge, and " turbulizer " has the ridge along its length discontinuities so that logical The axial flowing for crossing turbulizer is tortuous.Turbulizer sometimes referred to as deviates or incision band (lanced strip) It is described in fin, and in U.S. Patent number Re.35,890 (So) and U.S. Patent number 6,273,183 (So et al.) such The example of turbulizer.The patent of So and So et al. is entirely incorporated into herein by reference.

In the embodiment illustrated herein, turbulence excess insertion piece 38 is shown as single corrugated fin, includes along vertical The multiple parallel folds 39 extended to axis A.Fold 39 is by the substantially vertical side arranged in a manner of spaced in parallel to each other open Wall 41 limits, wherein adjacent side wall 41 is bonded together along wave crest 43 and trough 45, medium wave peak 43 and trough 45 are with flowing Roof and bottom wall 2,4 thermo-contact of body flow channel 36, i.e. roof and bottom wall of the fluid flowing passage 36 in heat transfer region 76 2nd, there is maximum height, wherein turbulence excess insertion piece 38 is directly thermally contacted with roof and bottom wall 2,4 between 4.

In the illustrated embodiment, substantially vertical side wall 41 and circle of the turbulence excess insertion piece 38 with no perforation The wave crest of head and trough 43,45.It should be appreciated, however, that side wall 41 can be angled with respect to each other, side wall can be for example by dissipating Hot hole is come to form perforation and/or wave crest and trough 43,45 can be angular.

It can be seen that phase of the slender space between the adjacent wall 41 of each turbulence excess insertion piece 38 in insertion piece 38 It is opened wide at opposite end, thus fluid is allowed to be flowed along axis A by insertion piece 38.Flow through the fluid of insertion piece 38 and insertion piece 38 Surface thermo-contact so that heat transmitted between fluid and insertion piece 38.Insertion piece 38 essentially adds heat in heat exchange Device core and flow through the surface area transmitted between fluid therein.

Multiple heat-generating electronic parts 44, which are located at, to be limited in the space between adjacent flat tube 22,22 '.Flat heat transfer table Face 40 is defined along the roof of flat tube 22 and the outer surface of bottom wall 2,4, with being limited to fluid flowing passage 36 therein It is directly opposite and directly opposite with heat transfer region 76.Each in flat tube 22 is with the flat heating surface in top and bottom 40, and bottom flat tube 22 ' only has top flat heating surface 40.The heat transfer table limited by adjacent flat tube 22,22 ' Face 40 is separated from each other and twice of height substantially same distance of the boss 28 of protrusion.The height selected as of boss 28 makes The spacing between the heating surface 40 of adjacent flat tube 22 is obtained less times greater than the thickness of heat generating components 44, to allow in heat exchange After device 10 is assembled by soldering and before the compression by the way that heat-generating electronic part 44 to be slipped into adjacent heating surface Space between 40 assembles heat exchanger module 42, as discussed below.

In the present embodiment, heat-generating electronic part 44 is schematically illustrated as the rectangle rib with a pair of of opposite flank 46 Column, a pair of of opposite flank 46 are the major surfaces of rectangular prism and have generally square or rectangular shape.Hair Each in thermoelectricity subassembly 44 can include the one or more IGBTs and/or two poles that are clipped between electrical insulation material layer Pipe.Attached drawing shows two heating electrics for being spaced apart and being arranged side by side between the heating surface 40 of adjacent flat tube 22,22 ' Subassembly 44, however, every layer of heat-generating electronic part 44 can also include three independent heat-generating electronic parts 44 being arranged side by side.

As discussed above, between the heating surface 40 of the adjacent flat tube 22 of the heat exchanger 10 after soldering Away from must initially be enough heat-generating electronic part 44 is allowed to be inserted into wherein, to assemble heat exchanger module 42.It is however, it is necessary to real Close thermal contact between existing heating surface 40 and the side surface 46 of heat-generating electronic part 44, in order to provide heat-generating electronic part 44 and cycle through heat exchanger 10 fluid flowing passage 36 fluid between effective heat transfer.Therefore, heat exchanger 10 It is compressible and can be permanently deformed, so that the spacing between the heating surface 40 of adjacent flat tube 22 is allowed to pass through along parallel Reduce in the compression axis C applied forces of the height of manifold 32,34.

In the present embodiment, raised boss 28 is formed as that a degree of compressibility can be provided for them, allows it Slightly become flat by applying enough power along compression axis C.As shown in fig. 5, in raised boss 28 The top of central part 26 of each protrusion for being included in core plate 12,14 rise to annular top surface 52 from annular base 50 Side wall 48, side wall 48 be joined at the annular base 50 protrusion central part 26, the annular top surface 52 limits Surely around the flat sealing surface 54 of centre bore 56.Flat sealing surface 54 be core plate 12,14,16 protrusion boss 28 along It is sealingly joined to the surface of the boss of the protrusion of adjacent core plate 12,14,16, and the boss 28 of the protrusion of top core plate 14 Accessory 18,20 is sealingly joined to along it.

As being equally shown in FIG. 5, the side wall 48 of raised boss 28 is set as being included in base portion 50 and top surface Multiple sections between 52.In this respect, side wall 48 includes upright wall portion 60, and the upright wall portion 60 is upward from base portion 50 Extend and tilted, and described with about 60-90 degree relative to the flat peripheral flange 24 of axis A and core plate 12,14,16 Upright wall portion 60 can be vertical or substantially vertical relative to axis A.

Between upright wall portion 60 and top surface 52 is compressible region 58, the heat exchanger module 42 after assembling Protrusion boss 28 can be compressed along the compressible region 58.Each in compressible region 58 is included inwardly Inclined wall part 62, the intilted wall part 62 are tilted relative to axis A with about 0-30 degree.Upright wall portion 60 upper end is joined to the lower end of inclined wall part 62 at sloping edge 64 so that more than about 90 degree and less than 150 degree Obtuse angle alpha is formed in (referring to Fig. 7-8) between wall part 60,62.Protrusion boss 28 structure be cause predetermined amount power along The application of axis C will preferentially cause intilted wall part 62 permanently to flatten, and for good and all reduce angle [alpha] without significantly Cause the deformation in other regions of the boss 28 of protrusion.

As shown in figures 7 and 8, the height of raised boss 28 can reduce sufficient amount so that heating surface 40 with 46 close thermal contact of side surface of heat-generating electronic part 44.Fig. 7 show between the heating surface 40 of adjacent flat tube 22 just Begin (after soldering) highly less times greater than the thickness or height of heat-generating electronic part 44 so that the heating surface 40 of heat generating components 44 There are gaps between side surface 46.This allows the sky between the flat tube 22 of heat exchanger 10 that heat generating components 44 slips into soldering Between.

Fig. 8 is shown in boss 28 by the heat exchanger module 42 after vertical compression.It can be seen that heat-generating electronic part 44 two side surfaces 46 are contacted with the heating surface 40 of adjacent flat pipe 22.Further, it can be seen that in the compressible of boss 28 It does not deform other than region 58.In this respect, compression has caused a small amount of of intilted wall part 62 to flatten, slightly Reduce angle [alpha].

Thermally contacting and can pass through between the heating surface 40 of heat exchanger 10 and the side surface 46 of heat-generating electronic part 44 Interface between heating surface 40 and side surface 46 sets the thermal interfacial material (TIM) of thin layer to enhance.TIM can include Thermal conductive grease, paraffin or metal material.

Although compressing force is located in the region of the boss 28 of protrusion, core plate 12,14,16 can include preventing core plate 12nd, 14,16 in the region of the boss 28 of protrusion, particularly substantially planar (being arranged essentially parallel to axis A) The additional features deformed in non-supporting zone.For example, in the present embodiment, core plate 12,14,16 is provided in the convex of bump, adjacent In the flat site of platform 28 and from the downside of core plate 12,14,16, i.e. along the boss 28 with protrusion from core plate 12,14,16 One or more protruding portions 66 that the side of top extension extends in the opposite direction.The protrusion of round recess form as two Portion 66 is arranged on every at one end of core plate 12,14,16, the either side of one of the protruding portion 66 in the boss 28 of protrusion.

Each in protruding portion 66 can have the height for being defined to the distance between its base portion 68 and top surface 70, The height is sufficient to make top surface 70 and the periphery flange 24 of core plate 12,14,16 substantially coplanar.Therefore, when core plate 12nd, 14,16 when being assembled into flat tube 22, and the protruding portion 66 of a core plate 12,14,16 can be with forming the other of flat tube 22 The protruding portion 66 of core plate 12,14,16 contacts, and can be soldered to the prominent of the other core plates 12,14,16 to form flat tube 22 Go out portion 66.By this method, protruding portion 66 can prevent part undesired and not of the boss 28 around protrusion of core plate 12,14 Controlled deformation, described undesired and uncontrolled deformation can adversely affect the deformation of heat exchanger 10.For example, Fig. 7 The opposing projections 66 for the opposite plate 12 for showing flat tube 22 with 8, the opposing projections 66 connect along its top surface 70 It touches, thus prevents the undesired deformation in the projection portion 26 of boss 28 of plate 12.

In order to further prevent undesired deformation of the core plate 12,14,16 in manifold 32,34 regions, a series of rigidity Every one end of heat exchanger module 42 can be applied to during compression step by compressing fixing piece 30, such as be shown in Fig. 9 to 12 's.Each compression fixing piece 30 is to include being attached to a pair of of leg 29,31 of end 33 and have and heat-generating electronic part 44 Substantially U-shaped piece of the substantially the same thickness (along axis C) of the thickness of (not being shown in FIG. 15).Leg 29,31 and end Portion 33 defines the close-fitting U-shaped notch 35 for the side wall 48 for being configured to form the boss 28 around a pair of engaging.

As shown in figs. 10-12, boss 28 of the fixing piece 30 along three side surrounding protrusions is compressed, and prevent Only undesired deformation of the core plate 12,14 during compression step.Figure 10 is the longitudinal sectional drawing along central plane, is shown Fixing piece 30 in its installation site, wherein leg 29 are longitudinally extended along the side of boss 28, and its medial end portions 33 Laterally across the end of heat exchanger.Figure 11 is the transverse cross-sectional view along the plane of the protruding portion 66 by core plate 12.Figure 11 show the compressed construction of heat exchanger module 42, and the wherein edge of heat-generating electronic part 44 is shown by a dotted line. The thickness of fixing piece 30 is substantially the same with the thickness of heat-generating electronic part 44 as can be seen from Figure 11, and each fixing piece 30 It is contacted with component 44 with the projection portion 26 of a pair of adjacent flat tube 22.Can with it is further seen that, fixing piece 30 is cut along U-shaped The inner peripheral edge of mouth 35 is engaged with projection portion 26 and with the support of pedestal 50 of boss 28.

Figure 12 shows with the height identical with heat generating components 44 and is inserted before direction compression of the core along arrow Enter the compression fixing piece 30 between the edge of two flat tubes 22 of the heat exchanger core of soldering.As in the figure 7, can see Go out compression fixing piece 30 and the upper surface of heat generating components 44 and the projection portion 26 of upper flat tube 22 between there are small―gap sutures.Such as Compression above in relation to the heat exchanger 10 of Fig. 8 discussion makes the heating surface 40 of flat tube 22 and the side surface of heat generating components 44 46 contacts.Because the heat generating components 44 and compression fixing piece 30 in Figure 12 have identical height, compression fixing piece 30 is allowed Maximum deformation quantity will make contact of the heating surface 40 with the side surface 46 of heat generating components 44, and further deformation and/ Or compression is prevented by compressing the presence of fixing piece 30.Once squeeze operation is completed, fixing piece 30 is just removed.

It should be noted that the leg 29,31 for compressing fixing piece 30 with the protruding portion 66 in core plate 12,14 vertically from Figure 11 and 12 (along axis C) alignment.The wall of 66 support protrusion part 26 of protruding portion is to prevent flat tube 22 in the region of boss 28 Deformation.As being shown in FIG. 12, the protruding portion 66 in top flat tube 22 has before the compression of heat exchanger 10 slightly Its top surface spaced apart.It is expected that, it will protruding portion 66 is made to be contacted during compression with another protruding portion 66.It compares Under, as can be from being found out the lower flat tube 22 in Figure 12, protruding portion 66 can just be in contact with each other before the compression, and It and can be by soldered joint together.

Core plate 12,14,16 further includes one or more features, to optimize multiple fluid flowing passages of heat exchanger 10 Flow distribution in 36, and the flow distribution also in optimization individual flow flow channel 36 minimizes bypass flow simultaneously.It should It recognizes, the fluid flowing passage 36 of heat exchanger 10 is parallelly arranged so that will to the fluid flow distribution of each channel 36 It can depend on the relative pressure drop of manifold 32,34 and individual flow flow channel 36.Due to the pros relatively of heat-generating electronic part 44 The heat-generating electronic part 44 of shape or the limited quantity in the geometry and every layer of rectangle, the heat exchange of type described herein The fluid flowing passage of device has relatively short length dimension (along axis A).For example, in heat exchanger 10, fluid flowing The length of channel 36 usually will be about 1-4 times of its width.Due to the geometry of fluid flowing passage 36, inventor is It has been observed that cooling fluid is may not be enough to throughout heat relative to the pressure drop of the fluid flowing passage 36 of the pressure drop of manifold 32,34 The fluid flowing passage 36 of exchanger 10 is uniformly distributed.Due to this reason, heat exchanger 10 further includes each fluid flowing of control One or more flow distributions of pressure drop in channel 36 and thus the fluid flow distribution of optimization fluid flowing passage 36 are special Sign.

Inventor has also been found that the pressure drop increased in fluid flowing passage 36 can lead to higher bypass flow, example Such as by the bypass flow of narrow bypass passageways 72, the narrow bypass passageways 72 extend to outlet manifold from inlet manifold 32 34, and the outer edge 6,8 of the longitudinal edge (along axis A) and fluid flowing passage 36 positioned at turbulence excess insertion piece 38 Between.This increased bypass flow by channel 72 has negative effect to the efficiency of heat exchanger 10.Therefore, it retouches herein The flow distribution feature configuration stated is the bypass flow that can also make to flow through channel 72 at the outer edge 6,8 of fluid flowing passage 36 It minimizes, heat generating components 44 is caused more effectively to cool down.

In the present embodiment, heat exchanger assemblies 10 further comprise flow distribution feature, the flow distribution feature packet The one or more flowing limitation ribs 74 being arranged at least some of fluid flowing passage 36 are included, with by along fluid stream At least part of the width of dynamic channel 36 come reduce the height of the fluid flowing passage 36 outside heat transfer region 76 and partly Stop that the fluid between manifold 32, at least one of 34 and heat transfer region 76 flows.In one or more flowing limitation rib 74 Each extend from the roof 2 or bottom wall 4 of flat tube 22.For example, in any one in fluid flowing passage 36, one or Multiple flowing limitation ribs 74 are along the fluid flowing passage 36 between manifold 32, at least one of 34 and heat transfer region 76 At least part of width reduces the height of fluid flowing passage 36.

As mentioned above, the core plate 12,14 of heat exchanger 10 is mutually the same, and therefore all has the stream of same structure Dynamic limitation rib 74.Although bottom plate 16 lack protrusion have hole boss 28, it can also have and core plate 12,14 same structures Flowing limitation rib 74.Flowing limitation rib 74 be formed in the projection portion 26 of core plate 12,14,16, and from core plate 12,14, 16 downside extends in the opposite direction along the boss 28 with protrusion from the side that the top of core plate 12,14,16 extends.Often The High definition of a flowing limitation rib 74 is the distance between its base portion 78 and top surface 80.

In the present embodiment, each in core plate 12,14,16 is provided between inlet manifold 32 and heat transfer region 76 First flowing limitation rib 74 and be arranged between outlet manifold 34 and heat transfer region 76 second flowing limitation rib 74. In some embodiments, flowing limitation rib 74 can be provided only between inlet manifold 32 and heat transfer region 76 or only in outlet discrimination Between pipe 34 and heat transfer region 76.In other words, in all embodiments, flowing limitation rib 74 is arranged on the two of heat transfer region 76 It is not essential at end.This depends on the size of fluid flowing passage 36, to be carried on the back by the expectation that rib 74 provides to a certain extent Pressure amount and the resulting bypass flow by bypass passageways 72.

Although the flowing limitation rib 74 of core plate 12,14,16 is shown as along the transverse axis B extension transverse to longitudinal axis A, But it's not necessary in all embodiments.In the present embodiment, the lateral arrangement of flowing limitation rib 74 allows heat transfer table The area in face 40 is maximized.In some embodiments, flowing limitation rib 74 can be essentially or nearly transverse to longitudinal axis It line A and/or can be tilted relative to longitudinal axis A.

In the present embodiment, flowing limitation rib 74 is along its whole length " height reduces " rib, it is meant that rib 74 Top surface 80 be less than periphery flange 26.Therefore, when core plate 12,14,16 is assembled into flat tube 22, each flat tube The top surface 80 of rib 74 in 22 opposite core plate 12,14,16 is separated from each other in order to provide fluid flow gap 81, such as It can find out in Fig. 2,5,7 and 8.

Figure 13-16 illustrates the heat exchanger module 42 ' including the heat exchanger 10 ' according to the second example embodiment.Heat Exchanger 10 ' is that it lacks protruding portion 66 with 10 difference of heat exchanger, and is that rib 74 has the rib with heat exchanger 10 Different constructions.All other element of heat exchanger 10 ' is identical with those of heat exchanger 10.These elements pass through identical Reference number identifies, and the above description of these similar elements combination heat exchangers 10 is equally applicable to heat exchanger 10 '.

The core plate 12,14,16 of heat exchanger 10 ' also includes a pair of of flowing limitation at the opposite end of heat transfer region 76 Rib 74.The rib 74 of heat exchanger 10 ' is " overall height " rib, it is meant that they, which have, is defined between its base portion 78 and top surface 80 Distance maximum height so that top surface 80 and the periphery flange 24 of core plate 12,14,16 are substantially coplanar.Therefore, work as core When plate 12,14,16 is assembled into flat tube 22, the top surface 80 of the rib 74 in a core plate 12,14,16 will with to form this flat The rib 74 of other core plates 12,14,16 of flat pipe 22 contacts, and can be soldered to be formed the flat tube 22 other core plates 12, 14th, 16 rib 74, as can be as can be seen from Figure 12.

Each rib 74 can be extended continuously between the periphery flange 24 at the opposite side of core plate 12,14,16, such as be handed in heat In parallel operation 10 or rib 74 can be interrupted by one or more gaps 82, in the height of one or more of 82 middle ribs 74 of gap It is decreased to zero less than its overall height or in the height of one or more of 82 middle ribs 74 of gap.In heat exchanger 10 ', each Rib 74 has two gaps 82 that the height of rib 74 is zero, i.e. rib is not formed in the region in gap 82, and gap 82 is therefore It is coplanar with the downside of projection portion 26.In the present embodiment, two gaps 82 are from the substantially phase spaced inward of periphery flange 24 Equivalent leaves center rib section 74a and two edge segments 74b and 74c.

As being shown in FIG. 15, the distribution of resulting fluid flowing concentrates on core plate 12,14,16 and flat tube In 22 central part, the region of wherein higher flowing is shown as lighter region.It can be seen from fig. 15 that the stream of cooling fluid It is dynamic to be diverted away from the edge there are bypass passageways 72 of fluid flowing passage 36, and flow through the turbulence excess in heat transfer region 76 Insertion piece 38 leads to the best heat transfer between heat-generating electronic part 44 and heat-transfer fluid.In addition, it is embedded in heat-generating electronic part 44 In one in IGBTs and/or diode 90 apparent position in fig. 14 by different size of in heat transfer region 76 Square indicates.It should be understood that regions that these square instruction " hot spot ", i.e. highers are generated heat, and therefore when will cool down When the flowing of fluid focuses on these hot spots, the flow distribution provided by the rib construction of heat exchanger 10 ' is advantageous.

Flowing in the presence of many other constructions that can be used for changing in a particular application flow distribution limits rib 74.Example Such as, Figure 17 and 18 shows the flat tube 22 being made of two identical core plates 12, wherein the stream at the opposite end of each core plate 12 The height of dynamic limitation rib 74 is different.In this respect, each core plate 12 in Figure 17 and 18 is set at the both ends of heat transfer region 76 There is " height reduces " rib 74, the wherein rib 74 (being identified as 74-1) of the at one end of heat transfer region 76 has the first height, and Rib 74 (being identified as 74-2) at the other end of heat transfer region 76 has the second height, and it is high that first height is more than described second Degree.

In the construction being shown in FIG. 17, higher rib 74-1 of the flat tube 22 in a core plate 12 and the core plate faced Higher rib 74-1 in 12 is assembled with respect in the case of so that small―gap suture 84 is located at the at one end of heat transfer region 76.And And the lower rib 74-2 in a core plate 12,14,16 is opposite with the lower rib 74-2 in the core plate 12,14,16 faced so that Wide arc gap 86 is located at the opposite end of heat transfer region 76.Whether it is located near import or outlet manifold 32,34, small―gap suture 84 can all lead to relatively high back pressure desired in some applications.

It is lower in the core plate 12,14,16 that faces that Figure 18 illustrates higher rib 74-1 in each core plate 12,14,16 Alternative constructions opposite rib 74-2, so that intermediate space 88 is arranged on heat transfer zone (i.e. more than gap 84 and less than gap 86) At the both ends in domain 76.Compared to the flattened tube configurations in Figure 17, this provides relatively low pressure drop.It should be understood that heat transfer region It is logical that the use of the flowing limitation rib 74 of different height at 76 opposite end will allow the different fluid of heat exchanger 10 to flow Some changeabilities of back pressure in road 36, while allow all core plates 12,14,16 all identical and/or all there is same structure Rib 74.In this respect, it can be selected in Figure 17 or 18 around vertical axis rotation simply by making one in core plate 12 Construction.

It should be understood that it is in other ways possible by the fluid flowing passage 36 of variable back pressure introducing heat exchanger 10. For example, rib 74 that height reduces or overall height can be arranged on the at one end of the heat transfer region 76 of each core plate 12,14,16, and There is no rib 74 to be arranged at opposite end.Figure 19-20 shows that each core plate 12 includes the flowing limitation that height reduces at one end Rib 74-1 (identical with the rib 74-1 in Figure 17-18) and the construction that limitation rib 74 is not flowed at opposite end.In this structure In making, the lower rib 74-2 of Figure 17-18 is completely eliminated so that each core plate 12 only have the import that can be positioned at core plate 12 or Single flowing limitation rib 74-1 at the port of export.The effect for eliminating lower rib 74-2 is that wide arc gap 86 (Figure 20) will be fluid stream The overall height of dynamic channel 36, and intermediate space 88 (Figure 19) will higher, this amount being higher by is equal to the lower rib 74-2's that disappears Highly.

Figure 21 illustrates the flattened tube configurations identical with the flattened tube configurations of Figure 19, and only rib 74-1 is that have and protruding portion The overall height rib of the coplanar top surface 80 of 66 top surface 70, top surface 70 and the periphery flange 24 of the protruding portion 66 Sealing surfaces (not being shown in FIG. 21) it is coplanar.The height of fluid flow gap 88 in Figure 21 is equal to fluid flowing passage The half of 36 maximum height.

It should be understood that the rib 74 in Figure 17-21 can be along the overall height of the multiple portions of its length and along its length Other parts reduction height.

Figure 22 to 24 shows the replacement rib pattern that can be used in heat exchanger 10 ' and resulting flowing point Cloth.In this respect, the three-member type flowing limitation rib 74 (including section 74a, 74b, 74c) of heat exchanger 10 ' can be by such as scheming The overall height two-piece flow limitation rib 74 shown in 22-24 replaces, including the overall height section separated by the gap 82 of centralized positioning 74a and 74b.Gap 82 extends throughout the overall height of fluid flowing passage 38, and flank section 74a, 74b is from the outer edge of plate 12,14,16 It extends internally, and the top 80 of flank section 74a, 74b for example by sealed with brazing is bonded together.Therefore, the rib of Figure 22 Structure causes all fluids to be diverted through the gap 82 of centralized positioning, causes such as flow distribution shown in dotted line in fig 23, It wherein allows fluid flow the intermediate region of plate 12,14,16, will include the region of turbulence excess insertion piece 38, avoid simultaneously By the edge of plate 12,14,16, the i.e. region of bypass passageways 72.It should be understood that in the embodiment of Figure 22-24, Ke Yicong Either end in heat transfer region eliminates one in rib 74.

5 to 28 heat exchanger 110 according to third embodiment is described referring now to Fig. 2.Heat exchanger 110 with retouching above The heat exchanger 10 and 10 ' stated shares multiple common traits, and identical reference number is used for illustrating identical element.Heat is handed over The above high description of 10 and 10 ' similar elements of parallel operation is equally applicable to heat exchanger 110, unless in addition statement below.

As can from being found out attached drawing, heat exchanger 110 have carry positioned at flat tube 22 the same end at import and Export the U-shaped flow structure of accessory 18,20 and manifold 32,34.The flat tube 22 of heat exchanger 110 is schematically in the drawings It shows, it should be recognized that flat tube 22 can have the structure similar with the structure of heat exchanger 10,10 ', including along it A pair of of core plate that periphery flange is brazed together with aspectant relationship, the turbulent flow with the heat transfer region for limiting flat tube 22 increase Strong insertion piece.

Space (not shown) for receiving heat-generating electronic part 44 be limited to heat exchanger 110 adjacent flat pipe 22 it Between.As can be seen that each second flat tube (being labeled as 22a) in heat exchanger 110 is only connected with inlet manifold 32, and its Each in its flat tube (being labeled as 22b) is only connected with outlet manifold 34.Therefore, each flat tube 22a is (herein Referred to as " import flat tube ") inlet fluid flowing channel 36a is limited, and each flat tube 22b is (referred to herein as " outlet Flat tube ") limit outlet fluid flowing passage 36b.

As can be seen that tubulose communicating passage 112 be arranged on each import flat tube 22a and adjacent outlets flat tube 22b it Between, the communicating passage 112 be located at flat tube 22a, 22b in the end in manifold 32,34 distal sides.

In order to allow the connection of the linear type manifold of the height throughout heat exchanger 110, the formation discrimination of flat tube 22a, 22b The part of pipe 32,34 is located in the nose portion of flat tube 22a, 22b.Particularly, import flat tube 22a has flat from exporting The outwardly projecting nose portion 114 in edge of pipe 22b, so that inlet manifold 32 is allowed to spread the high perpendicular of heat exchanger 110 Ground extends.Similarly, outlet flat tube 22b has from the outwardly projecting nose portion 116 in the edge of import flat tube 22a, with Just outlet manifold 34 is allowed to extend throughout the high perpendicular of heat exchanger 110.In the accompanying drawings, inlet and outlet flat tube 22a, 22b is schematically illustrated as being flat, and is engaged by tubulose inlet and outlet communicating passage 118,120.However, it should recognize Know, flat tube 22a, 22b can instead of be had and such as joined above by being formed with those similar punching press core plates described above According to heat exchanger 10 discuss be bonded together to be formed manifold 32,34 protrusion have hole boss.Similarly, tubulose communicating passage 112 can have hole boss to replace by protrusion.

As in 10 ', heat exchanger 110 can be pressed heat exchanger 10 as described above along height dimension Contracting, it is tight between the heat-generating electronic part 44 in flat tube 22 and the space that be inserted between adjacent flat pipe 22 to generate Close thermo-contact, to form heat exchanger module 42.As being shown in FIG. 27, the edge of flat tube 22 can be provided with interval The hole opened can set pull rod 122 by the hole spaced apart.Pull rod 122 can have the end of thread for being provided with nut etc. So that the lamination for compressing flat tube 22 is thermally contacted with electronic unit 44.For example, in heat exchanger 110 by having as described above In the case that the flat tube for having periphery flange 24 is formed, hole spaced apart can be arranged in periphery flange 24.

The manifold 32,34 of heat exchanger 110, which can also be provided with, causes them compressible so as to the ministry of electronics industry that enhances and generate heat The feature of the thermo-contact of part 44.For example, there are hole boss 28 rather than pipe by raised as described above in flat tube 22 In the case that the core plate of shape communicating passage 112,118,120 is formed, boss 28 can be described such as above in relation to heat exchanger 10 As built so that they are compressible.Alternatively, the flat tube 22 with heat exchanger 110 is utilized in heat exchanger 110 The communicating passage 112,118,120 of the tubular pipeline form of flat tube 22 that is integrally formed or being soldered to heat exchanger 110 come into In the case of row structure, tubulose communicating passage 112,118,120 can utilize the height adjustable sliding being such as shown in FIG. 28 close Sealing is built.

As being shown in FIG. 28, the tubulose communicating passage 112,118,120 between adjacent flat pipe 22 is by first and Two tubular sections 124,126 are formed, each in first and second tubular sections 124,126 is fixed to flat tube 22 In one.The internal diameter of second tubular sections 126 is more than the outer diameter of the first tubular sections 124, and cyclic spring containment member 128 are arranged between the diameter of first and second tubular sections 124,126.Flexible sealing component 128 can be trapped in first In groove on the outer surface of tubular sections 124 or on the inner surface of the second tubular sections.

It is downward according to the situation that the sliding seal arrangement of Figure 28 is built in tubulose communicating passage 112,118,120, It should be understood that each flat tube 22 and its associated tubular sections 124,126 will carry out group by being brazed first Dress.Then flexible sealing component 128 will be applied to tubular sections 124 and/or 126, then will carry out assembling heat exchange in this way Device 110, that is, the first tubular sections 124 are inserted into the second tubular sections 126 so as to formed tubulose communicating passage 112, 118th, 120, between heat-generating electronic part 44 is inserted in flat tube 22, and it is last sharp for example as being shown in FIG. 27 Flat tube 22 and electronic unit 44 are compressed into thermally contacting with pull rod 122.

Although the utility model has been combined some embodiments and is described, it is not limited to this.On the contrary, this practicality is new Type includes all embodiments that can be fallen within the scope of the claims below.

Claims

1. it is a kind of for cooling down multiple layers of heat exchanger assemblies of electronic module, including：

Heat exchanger core, the heat exchanger core include multiple flat tubes, wherein each flat tube surrounds elongated stream Body flow channel, the elongate fluid flow channel have roof, bottom wall and a pair of of the outer edge distanced from one another cross opened, wherein The width of the fluid flowing passage is limited between the outer edge；

In stacked, the fluid flowing passage is along the height of the lamination into parallel to each other for wherein described flat tube arrangement The relationship separated so that for receiving High definition of the multiple spaces of heat-generating electronic part throughout the lamination adjacent flat Between flat pipe, wherein the flat tube limits heating surface, the flat tube is suitable for along the heating surface and the hair Thermal part thermally contacts；

Wherein described flat tube is bonded together to form inlet manifold and outlet manifold, each in the manifold is along described The entire height of lamination extends, wherein the inlet manifold and the direct fluid of first end of each fluid flowing passage connect It is logical, and the outlet manifold and the second end in direct fluid communication of each fluid flowing passage；

The fluid flowing passage of wherein each flat tube has the heat transfer region between the manifold, wherein rapid Stream stiffener inserts are arranged on inside the heat transfer region, and the heat transfer zone in wherein each fluid flowing passage Domain and at least one heating surface on the outer surface of the flat tube are directly opposite, wherein the fluid flowing passage exists There is maximum height, wherein the turbulence excess insertion piece and the top between the roof and bottom wall in the heat transfer region Wall and bottom wall directly thermally contact；

Wherein described heat exchanger assemblies further comprise one be arranged at least some fluid flowing passages or more A flowing limitation rib, to reduce the heat transfer region by least part of the width along the fluid flowing passage The height of the external fluid flowing passage and be partially blocked by least one manifold and the heat transfer region it Between fluid stream.

2. heat exchanger assemblies according to claim 1, wherein one in each fluid flowing passage or Multiple flowing limitation ribs are between at least one of described manifold and the heat transfer region along the fluid flowing passage At least part of width reduces the height of the fluid flowing passage.

3. heat exchanger assemblies according to claim 1, wherein one in each fluid flowing passage or Multiple flowing limitation ribs subtract between at least one of described manifold and the heat transfer region across substantially its entire width The height of the small fluid flowing passage.

4. heat exchanger assemblies according to claim 1, wherein one or more of flowing limitation ribs include：Described The outer peripheral peripheral portion of the neighbouring fluid flowing passage between at least one of manifold and the heat transfer region At least one gap for dividing and allowing fluid to flow through,

The outer edge part of wherein described flowing limitation rib is extended to from the roof described in the fluid flowing passage Bottom wall.

5. heat exchanger assemblies according to claim 4, wherein the turbulence excess insertion piece has a pair of longitudinal edges, The outer edge of the pair of longitudinal edge and the fluid flowing passage is spaced apart to create along the turbulence excess The bypass passageways that the longitudinal edge of insertion piece extends between the inlet manifold and the outlet manifold；And

The outer edge part of wherein described flowing limitation rib is longitudinally aligned with the bypass passageways, so as at least partly Blocking enters the flowing of the bypass passageways and/or the separate bypass passageways of guiding fluid circulation.

6. heat exchanger assemblies according to claim 1, wherein each in the flat tube includes a pair of of cooperation Elongated core plate, the elongated core plate raised protrusion for having hole boss, wherein adjacent flat pipe at its opposite end Boss be joined together to limit the inlet manifold and the outlet manifold, and in the core plate of one pair of which cooperation Center portion point limits the roof and bottom wall of each flat tube.

7. heat exchanger assemblies according to claim 6, wherein each in the fluid flowing passage has for it The length of 1-4 times of width, and wherein narrow bypass passageways be present in the longitudinal edge of the turbulence excess insertion piece with it is described Between the outer edge of fluid flowing passage；

Wherein one or more flowing limitation ribs are arranged at least some fluid flowing passages, described to be partially blocked by Fluid flowing between manifold and the heat transfer region, the rib are formed in the core plate.

8. heat exchanger assemblies according to claim 7, wherein the first flowing limitation rib is arranged in the manifold One between the heat transfer region.

9. heat exchanger assemblies according to claim 7, wherein the first flowing limitation rib is arranged on the import discrimination Between pipe and the heat transfer region, and the second flowing limitation rib be arranged on the outlet manifold and the heat transfer region it Between.

10. heat exchanger assemblies according to claim 8, wherein each flowing limitation rib is transverse to the flat tube Longitudinal axis extension.

11. heat exchanger assemblies according to claim 7, wherein the outer edge of the fluid flowing passage is located at institute It states at the periphery flange of core plate, the core plate of each in the flat tube is bonded together along the periphery flange；

Wherein each flowing limitation rib is along the rib of the height reduction of its whole length, wherein each height reduces Rib top surface less than the rib core plate formed therein the periphery flange；

So that when the core plate is assembled into the flat tube, the height in the core plate of the cooperation of each flat tube The top surface for spending the rib reduced is separated from each other, to provide fluid flow gap in-between, wherein the fluid The height of flow clearance is less than the maximum height.

12. heat exchanger assemblies according to claim 7, wherein each flowing limitation rib is overall height rib, wherein often The periphery flange of the top surface of a overall height rib core plate formed therein with the rib is substantially coplanar；

So that when the core plate is assembled into the flat tube, it is described complete in the core plate of the cooperation of each flat tube The top surface of high rib is in contact with each other；

Wherein each overall height rib is interrupted along its length by one or more gaps, the rib in the gap described Highly it is less than the overall height.

13. heat exchanger assemblies according to claim 12, wherein each every in the gap in the overall height rib The periphery flange of one core plate is spaced inward.

14. heat exchanger assemblies according to claim 11, wherein each core plate is provided with positioned at the heat transfer zone The rib that the first and second height at the opposite end in domain reduce, wherein the rib that first height reduces has the first height, and And the rib that second height reduces has the second height, and first height is more than the described second height；

So that one or more of described flat tube in the lamination is assembled, wherein described first in the core plate The rib highly reduced toward each other so that the first gap setting the heat transfer region at one end it is each pair of opposite first high It spends between the top surface of the rib reduced, and the rib that second height in wherein described core plate reduces is relative to each other So that the top of rib that each pair of opposite second height of second gap setting at the opposite end of the heat transfer region reduces Between portion surface, wherein second gap is higher than first gap；And/or

So that one or more of described flat tube in the lamination is assembled, described first in one of core plate The rib highly reduced is opposite with the rib that second height in the core plate faced reduces so that intermediate space is arranged on the biography Between the top surface of rib that each pair of opposite height at the both ends of thermal region reduces, wherein the intermediate space is higher than First gap and less than second gap.

15. heat exchanger assemblies according to claim 6, wherein the boss has a height so that in the fever Electronic unit is inserted into before the space between the flat tube, and the height of each in the space is slightly big The thickness of one in the heat generating components, with the institute that the heat-generating electronic part is allowed to be inserted between the heating surface It states in space；

Wherein described boss is respectively provided with compressible sidewall areas, to allow the height in the space between the flat tube It applies force to reduce by the compression axis along the height for being parallel to the manifold；

Each in wherein described core plate further comprises one or more support protruding portions, and one or more of supports are prominent Each gone out in portion is located in the substantially planar region of the base portion of one in the boss of the neighbouring protrusion；

In wherein described support protruding portion each from the downside of the core plate along with the boss of the protrusion from the core plate The side of extension extends in the opposite direction；And

The High definition of each in wherein described support protruding portion is the distance between its base portion and top surface, the height The periphery flange for spending the top surface and the core plate to cause the support protruding portion is substantially coplanar；

So that when the core plate is assembled to form the flat tube, the branch of a core plate of each flat tube Support protruding portion will be contacted with the support protruding portion for the other core plates for forming the flat tube.

16. heat exchanger assemblies according to claim 15, wherein the form of the support rounded recess of protruding portion, institute Each stated in support protruding portion is positioned adjacent near the base portion of one in the boss of the protrusion.

17. heat exchanger assemblies according to claim 1, wherein the heat exchanger has U-shaped flow structure, the U Shape flow structure has the inlet and outlet manifold at the first end of the core；

Each second flat tube in wherein described flat tube is only in fluid communication with the inlet manifold and limits inlet flow Body flow channel, and each in other flat tubes is only in fluid communication with the outlet manifold and limits outlet fluid Flow channel；And

Wherein communicating passage be arranged in inlet fluid flowing channel each in the outlet fluid flow channel It is adjacent between one, the second end in the manifold distal side that each in the communicating passage is located at the core is attached Closely.

18. heat exchanger assemblies according to claim 17, wherein the part position of the formation manifold of the flat tube In the nose portion of the flat tube.

19. heat exchanger assemblies according to claim 17, wherein the outer edge of the flat tube be provided with it is spaced apart Hole, pull rod pass through the hole spaced apart, and the pull rod, which has, to be provided with nut and be suitable for compressing the described folded of flat tube The end of thread that layer is thermally contacted with electronic unit formation.

20. heat exchanger assemblies according to claim 17, wherein tubulose of the flat tube by tubular pipeline form It connects to engage, the flat tube of the tubular pipeline and the core is integrally formed or is soldered to the described flat of the core Flat pipe；

Wherein each tubular pipeline includes adjustable for height sliding seal, and the adjustable for height sliding seal includes First tubular sections and the second tubular sections, each in first tubular sections and the second tubular sections are fixed to described One in flat tube；

The internal diameter of wherein described second tubular sections is more than the outer diameter of first tubular sections, and cyclic spring containment member It is arranged between the diameter of first and second tubular sections.

21. a kind of heat exchanger module, including heat exchanger assemblies according to claim 15 and multiple heating parts Part；

The heat exchanger module further comprises multiple hard compression fixing pieces, during the heat exchanger module group assembling, Compressing force is applied to the heat exchanger in the height along each manifold to make described in the flat tube Before the step of heating surface is thermally contacted with the side surface of the heat-generating electronic part, the multiple hard compression fixing piece is answered For the heat exchanger module；

Wherein each compression fixing piece is substantially U-shaped, has the thickness substantially phase with the heat-generating electronic part Same thickness；

Each in wherein described compression fixing piece can be inserted between adjacent flat tube, so as to along three of them side ring Around the boss of the protrusion of the flat tube, and the core plate is prevented to be not intended to during the step of applying compressing force Deformation.

22. a kind of heat exchanger module, including heat exchanger assemblies according to claim 20, wherein first tubulose Section is received in second tubular sections to form the tubular pipeline and the manifold；

One or more of wherein described heat-generating electronic part is received in the space between adjacent flat tube；And

Wherein described heat exchanger assemblies are maintained under compression by multiple pull rods, wherein the compression applied by pull rod Power is guided along the height of each manifold so that the side table of the heating surface and the heat-generating electronic part Thermal contact.