CN1225717A - Collector for motor vehicle heat exchanger with housing in at least two parts - Google Patents

Abstract

The invention relates to a collector for a motor vehicle heat exchanger has a structure in at least two parts, with a tube bottom (26) and a lid (28) which together from the housing of the collector (18), possibly with at least one additional component part. According to the invention, the lid (28) and/or the tube bottom (26) form each an integral diecast piece made of a weldable material, together with the surrounding housing wall.

Description

Motor vehicle has the heat exchanger collector of dimeric at least housing

The present invention relates to a kind of collector of the heat exchanger by claim 1 preamble.

Usually this notion of collector should not only be interpreted as the collector of middle collector or outlet side, but also should comprise the distributor of input.

The collector of known diversified this many compositions.Wherein usually by a case lid, a tube bottom plate or also have a bookshelf-type separator of being made by sheet material or plate shaped material to form, wherein for example case lid is made by the sheet material deep-draw up to now.Also adopt pressed article (Spritzgussteil) so far for special structure, for example in the evaporimeter in a kind of aircondition that particularly also can be used in motor vehicle.Adopt a sandwich of making by the pressure injection plate according to DE-3150187C2 for distributor, wherein obtain needed cavity in the distributor by the groove of correspondingly making.

Below in explanation of the present invention without this notion of pressure injection (Spritzguss), and with this notion of die casting (Druckguss).But the notion of die casting within the scope of the invention and pressure injection is regarded as and is equal to.

As everyone knows, collector or similar component are made by die casting respectively as the case lid and the tube bottom plate of coolant distributor (DE-A1-4212721).But usually used aluminium base die-casting material since in aluminium alloy the content of silicon very high and can not soldering, can not solder brazing.Therefore adopt seal with collector or similar component assembly unit in this case.This needs extra manufacturing expense, and the persistence of sealing is limited.

The member of the coolant distributor of DE-A1-4212721 is not to make die casting, but tandem rolling spare (Sp.4.z.1-3).With aluminium is that the tandem rolling spare of base is because the composition difference of its aluminium alloy can solder brazing.

The objective of the invention is to, make and can make with pressure casting method fully for the collector in the automotive heat exchanger, just as people desirable so far.

But according to the present invention by selecting a kind of soldering, but particularly the collector case lid made of the die casting of solder brazing and/or the aluminum or aluminum alloy material of tube bottom plate, make and to cancel special seal on the shell surface that constitutes by case lid and tube bottom plate that is used in collector, and can make these parts directly carry out soldering, just as common doing as the shaping plate of case lid and tube bottom plate time the up to now.Reduce manufacturing expense thus and guarantee lasting sealing.Especially preferentially be adopted as and make the collector die casting alloy by claim 19 newly developed.These problems are not similarly treated at the beginning in the collector member; Because this member is surrounded by the shell surface to external seal on case lid and the tube bottom plate.

Wherein following within the scope of the invention three kinds of viewpoints can additionally be used especially goodly:

First kind of viewpoint: the die casting manufacturing not only is confined to plank frame, also can be used for making the pond body with bottom and annular sidewall.There was not such annular sidewall before in known plank frame.

Second kind of viewpoint: die-casting technique can also make makes the flat partition board grid that floral designs are arranged, up to now it with the splicing structure mode of complexity by the sheet material manufacturing of cutting out (referring to DE19515526C1, Figure 11).

The third viewpoint: collector as in the evaporimeter of input distributor in addition can be in relevant cavity demarcation strip constitute with die-casting technique independent input different be the input pipe of the input cavity in further channel that is provided with of distributed uniform together with the connection opening between input pipe and the input cavity set up respectively, wherein when the integral body manufacturing has the cavity separator of evaporimeter case lid, should dispose an independent cover plate in the case lid at structural shape arbitrarily above the input pipe.Possibility that can not provide up to now particularly has been provided for this: along causing a zone that can be used for installing input pipe in the cross section of distributor, it no longer is subjected to the restriction of input input cavity area requirements.

A kind of based in above-mentioned three kinds of viewpoints of the present invention, remaining other two kinds of viewpoint be can be regarded as refinement of the present invention.

Know by DE-3136374C2, can a built-in object in the connecting box of the distributor that also can make according to possible mode as insert by die casting, it can be by machining or as the pressed article manufacturing, and different input pipes is aggregated into each input cavity.But this does not mean that this input pipe and bookshelf-type separator make one with die casting or pressure injection technology.

In described scope, using die casting or pressed article up to now being assembled into aspect the collector, considering bonding agent as the connection means are main except the seal of having mentioned.But having said that the present invention is different therewith considers to adopt die casting, it aspect its moulding many corresponding to prefabricated plate.The present invention further considers that also die casting combines with plate.But the plate that is shaped in described relation welds by solder brazing usually.The connected mode of passing through soldering, particularly solder brazing of this common employing is born under the situation that gets involved die casting wholly or in part within the scope of the invention like this, but promptly adopts the alloy of soldering as raw material for relevant die casting.Scribbling under the situation that the sheet material of scolder combines with at least one side even can give no thought to the corresponding solder coat of relevant die casting.

Pin (together with the concrete structure of claim 6 to 13) by claim 5 also has such advantage, before the collector soldering, can carry out the pre-assembled of the mechanical connection of collector case lid and tube bottom plate in this wise, make that thus weld seam is as far as possible little, therefore when soldering, prevent blow-by as far as possible reliably.

For example under situation about using as evaporimeter, this moment, collector was used as along the distributor of many input cavities that distribute on its length, if these input cavities just generally speaking are spaced from each other, and it is just enough not need to get rid of fully transverse leakage.Can without a doubt even use leachy die casting material for forming relevant chamber wall like this.

Under situation about using as evaporimeter, cooling agent injects from input usually equally.At this moment can be corresponding throttling opening being set, if function of injecting has been only required nozzle act hereto as within the collector of distributor.If but as current common in industrial manufacturing technology, the quiet in this wise calorifics of injection valve is regulated, make to reach stable suction superheat (Sauggasueberhitzung), so must be in cooling agent input pipe flow process the front of the collector injection valve that corresponding quiet calorifics regulates of packing into.Here for example adopt so-called shutoff valve usually, it contains a quiet calorifics adjusting device in its valve piece, and its temperature sensor is contained in the coolant outlet place.Therefore the valve piece has the inflow and the backflow fittings of two evaporimeters on the one side, is to be positioned on the side on opposite the joint that leads to condenser and compressor is arranged mostly at another.

Do following refinement according to claim 22 and 23 the present invention, quiet calorifics injection valve aspect the space, preferably partly is made between the die casting at least.Under latter event, consider such version especially, even injection valve-it has version-its housing of shutoff valve fully in advance in die casting in this structure.For internals,, can adopt member common on the market as valve seat, spool and heat sensor.The possibility that is built in the case lid wherein is provided especially.

By means of schematic diagram the present invention is illustrated in more detail again below a plurality of embodiment.Wherein expression:

One of Fig. 1 makes the outward appearance perspective view of four runner flat tube heat exchangers of evaporimeter;

Fig. 2 is by the possible cross-sectional structure with the flat tube heat exchanger of the collector of first kind of organization plan of Fig. 1;

Fig. 3 is corresponding to Fig. 2, but with the cross section of the collector of second kind of organization plan;

Fig. 4 presses the bookshelf-type separator that can be made by die casting of the collector of Fig. 3, and collector is contained between its tube bottom plate and the case lid;

Fig. 5 is by the collector of Fig. 3 top view to tube bottom plate when removing case lid, but adorning the bookshelf-type separator by Fig. 4;

Fig. 6 a to 6d presses the bookshelf-type separator and the tube bottom plate of the evaporimeter of press Fig. 3 or the respectively broken section an of connecting portion of case lid of Fig. 4 in four kinds of schemes;

Fig. 7 is along a section of the case lid made from die casting of the collector of input.

Flat tube heat exchanger in the accompanying drawings shown in all embodiment in make four runners, and make the evaporimeter of coolant circulation circuit.

Feature shown in this does not get rid of is also transferred to according to its implication in the heat exchanger with different runner numbers, also transfer to where necessary be not to make with flat tube and be not heat exchanger as evaporimeter.

The flat tube heat exchanger has following general structure:

Quantity is a lot, is typically 20 to 30 flat tubes 2 and arranges with the end face 4 of same each other spacing and alignment mutually.Sandwich style ground imbeds a diaphragm 8 in a zigzag respectively between the flat sides 6 of flat tube.Two outer surfaces 4 that are positioned at the flat tube in the outside equally also are equipped with diaphragm 8 in a zigzag respectively.Strengthen dividing plate 10 in every flat tube has, it has been separated into the cavity 12 of through channel effect in flat tube.The different numbers of cavity 12 usually according to constructional depth are 10 to 30.

Here the typical range of the flat tube of defined and its number of cavities only is a kind of preferential numerical value rather than restriction.

In motor vehicle air conditioning system when completion status by flat tube 2 and in a zigzag the device of shifting block type structure formed of diaphragm 8 have as the outside air of external heat exchange medium the direction of arrow and flow through along the constructional depth direction that can see among Fig. 1.

In evaporimeter as the internal heat exchange medium be cooling agent, fluorohydrocarbon (Fluorkohlenwasserstoff) particularly, it enters heat exchanger by input pipe 14, and discharges from heat exchanger again by efferent duct 16.Input pipe in coolant circulation circuit from its condenser.Efferent duct 16 leads to the compressor in the coolant circulation circuit.

When the even number runner is arranged in heat exchanger, undertaken distributing by a so-called distributor to the input of each flat tube from the cooling agent of input pipe 14.Gather at the output cooling agent and to flow to efferent duct 16.Though distribute and gather and can assign independent casing, then these two functions all are unified in the common collector 18 in all embodiments.

This collector 18 is contained on the end face 4 of flat tube 2 then, and the fluid that only carries out between the runner separately on another end face 4 of flat tube 2 is reverse, here for example by the represented single reverse cup 20 of the figure among Fig. 1 or according to the view among Fig. 2, the negative function of this single cup is built in the common reverse collector 22.Single reverse cup 20 by Fig. 1 also can be concentrated into a construction unit by the connecting portion that comes that do not draw on demand.

Under the extreme case of single channel heat exchanger, oppositely cup 20 or reverse collector 22 replace by the output collector that comes that do not draw.

The multithread road mean each passage that constitutes by cavity 12 in the zone of each flat tube 2 at least oppositely through not good liquor stream.Like this when dual channel oppositely cup 20 or oppositely collector 22 do not need other middle cavity separator, and negative function of necessary guarantee only.Central dividing plate 24 shown under the situation of four runners that respectively at least need be in Fig. 2 under the reverse situation in multithread road, make under the situation of this four runners at each reverse cup 20 or oppositely carry out in the collector 22 dual oppositely simple.Must increase the quantity of central dividing plate 24 more for a long time where necessary at the runner number.

Collector 18 is assembled by a tube bottom plate 26 and a case lid 28 basically, and other parts that are used for constituting collector 18 wherein can be set where necessary, and they have at least also will introduce below the part.

The reverse dorsad cup 20 of flat tube 2 or the free end of reverse collector 22 and the inner chamber of collector 18 closely embed tube bottom plate 26 communicatively, so tube bottom plate is provided with embedded groove and inner where necessary and/or outside setting-in joint.

Because the input and output function of cooling agent is unified in the collector 18, collector 18 needs two cavity structures at least, and it separates input side and outlet side.The whole for this reason cavity separator with 30 expressions has the flat partition board of the structure of a midfeather 32 at least, and the input area of the collector 18 that it will be communicated with input pipe 14 and an output cavity 34 that connects along collector 18 separate, and output cavity is communicated with efferent duct 16.

Secondly the cooling agent of input needs to flow to each flat tube 2 as far as possible equably in evaporimeter, can the cooling agent of importing be flowed to each root flat tube 2 individually by an independent distributor under extreme case.But in most of the cases flow to adjacent flat pipe group, in these flat pipe group, have at least one group to have than another and organize more flat tube number, wherein the flat tube number of each group can be alternately to change, in by the embodiment of Fig. 5 flat tube add up at 10 o'clock every group be equipped with two flat tubes.Wherein each flat pipe group sets an input cavity 36, and its direct and relevant flat pipe group is communicated with.Input cavity 36 is spaced from each other by the diaphragm plate 38 of making flat partition board in cavity separator 30.

Diaphragm plate 38 does not only vertically stretch out from a side of midfeather 32 separately in one is drawn next dual flow evaporator.

Shown in four runner evaporimeters in except the midfeather 32 adjacent with output cavity 34, also be provided with another midfeather parallel 40 with it.This midfeather intersects vertically with the diaphragm plate of separating input cavity 36 up to the junction of midfeather 32.Be positioned within the adjacent collector 18 of the input cavity 36 of outside from second runner to the 3rd the reverse chamber 42 that runner is reverse with each being separated into one on the extended line of diaphragm plate 38 between two midfeathers 32 and 40 between these midfeathers respectively.

When the runner of the collector 18 by having negative function is arranged a lot, have the midfeather number of midfeather 40 functions and the also corresponding increase of quantity in interior reverse chamber 42, interior reverse chamber 42 laterally also is inlaid between input cavity 36 and the output cavity 34 in inside respectively mutually abreast along collector.

Input pipe 14 is communicated with each input cavity 36 by an input pipe 44 that is distributed in the collector 18 own separately, and the input pipe 44 of itself is done to such an extent that have nothing in common with each other in each embodiment.

In the heat exchanger of completion in most cases by flat tube 2 and in a zigzag the piece formed of diaphragm 8 be fitted in side plate 46 sealings on the zigzag diaphragm of outside respectively separately by a plate in the side, make external frame that flows to the outside air of heat exchanger block for the front of side plate 46 formations.

Flat tube 2, zigzag diaphragm 8, the tube bottom plate 26 of collector and case lid 28 are together with the cavity separator 30 that is provided with where necessary and the side plate 46 of heat exchanger, preferably also have input pipe 14 and efferent duct 16 to make, and comprise evaporimeter with heat exchanger adjacent piping connection portion solder brazing becoming finished product by aluminum or aluminum alloy.

But the present invention is not limited only to this, in fact in all cases in the refrigerant evaporator that is used for by the motor vehicle air conditioning system of Fig. 1, can feed on two corresponding jointings 48 of the input pipe 14 of collector 18 and the shutoff valve (blockventil) 50 that efferent duct 16 is connected a quiet calorifics adjusting by corresponding jointing.Shutoff valve has two other input and output jointing on the relative side that can't see.

More specifically investigate different embodiment below:

At first tube bottom plate 26 and case lid 28 are made by the sheet material that scribbles scolder in the version relevant with Fig. 3 and 4.Wherein the free edge of case lid overlaps-represents in the both sides overlap joint-embedding tube bottom plate 26 in Fig. 3 with a side at least.

Be built in the distributing pipe 54 by Fig. 3 input cavity 36 input pipes 44 own, this distributing pipe has the interior separator 58 of a pipe shell 56 and a star, and it is the input pipe 44 of fan section formation itself freely.In order to make this input pipe 44 own feed affiliated input cavity 36 respectively on the same circumferential location of pipe shell 56,58 one-tenth helix shapes of the separator of star distribute.Here each input pipe 44 itself is communicated with affiliated input cavity 36 by an outlet 60 that is located on distributing pipe 54 shells 56 respectively.Each outlet 60 in case of necessity also can be designed to the flow controller shape and be used for directly injecting input cavity, and its size determines in this wise, makes to eliminate pressure drop between condenser pressure and the evaporator pressure basically.The wall of input cavity 36 is aimed in the expression outlet among Fig. 3; Can select corresponding angle in case of necessity, and not get rid of the cavity 12 of also aiming at flat tube 2 simultaneously.

As can more specifically seeing by Fig. 4, cavity separator 30 is by two midfeathers 32 and 40 and form and constitute the die casting or the pressed article of an integral body with diaphragm plate 38 that its intersects, and the notion of die casting within the scope of the invention and pressure injection is regarded as and is equal to here.

Here the notion of the flat partition board of cavity separator 30 intersections should be understood to and also comprises the extreme case that has only a side to intersect, its implication be diaphragm plate 38 just a side square be connected on the midfeather 32, this constitutes whole cavity separator 30 under the situation of binary channels heat exchanger.

For cavity separator 30 not only had been connected with case lid 28 but also with tube bottom plate 26, midfeather 32 and 40 and the connecting portion of flat partition board 38 be provided with a cylindricality and reinforce a body 62, it is transited into the pin 64 that attenuates to male-tapered on the relative both sides of cavity separator 30, they in cavity separator both sides reciprocally and reinforce a body 62 with a cylindricality and align.These pins 64 are made on the die casting of cavity separator 30 integratedly, and not only are used for tube bottom plate 26 but also are used for being connected with case lid 28, wherein represent a kind of connected mode in Fig. 3, the just following this mode that also will illustrate in Fig. 6 c.

Represent a flexible program among Fig. 5 again by the version of Fig. 4, the there is additionally forming additional pin 66 with the middle form that connects of uniform grid between these both sides outside the pin 64 of both sides between pin 64, it also can be reinforced a body 62 from the cylindricality of flat partition board and stretches out where necessary, but these add solid and do not form in the crossover sites of flat partition board.

Secondly as seen from Figure 5,, it is embedded in the grid of flat tube 2 connecting portions respectively, make cavity separator 30 and being connected of tube bottom plate can make a mistake the position suitably with flat tube 2 and being connected of tube bottom plate if select the grid of pin 64 and 66 in this wise.Represented is a kind of setting-in of off-centre, but also can consider the setting-in of symmetry.

Fig. 6 a to 6d is not as the preferential connected mode of representing the plate of four kinds of pins and tube bottom plate 26 and/or case lid 28 universally one by one with enumerating.

Plate only needs the punching out cup-shaped in the scheme of Fig. 6 a, and relevant then pin 64 or 66 ends that stretch into its taper embed in the pit of going out 68, and in this place's solder brazing.This connected mode has been born the connected mode of flat partition board, and the midfeather 32 and 40 and the connected mode of case lid 28 and/or tube bottom plate 26 of cavity separator 30 particularly.

But for improve intensity when keeping flat partition board and tube bottom plate and case lid by being connected of Fig. 6 a preferably adopt by the pin 32 of Fig. 6 b to 6d with 40 with being connected of tube bottom plate and case lid, each have the plate that a pin passes tube bottom plate and case lid here.Wherein Fig. 6 b represents a kind of simple implementation method, equally by solder brazing.In Fig. 6 c, press the pin outside pressing (Anstauchung) that Fig. 1 uses, the chucking of the side cut that the shape that makes its form an outside is coincide.In the scheme of pressing Fig. 6 d, become a cylindricality in the additionally such overstriking of the medium thick pin of other versions except that tapered slope, make that also forming side on the medial surface of collector 18 cuts (Hinterschneidung), the measure of the pressing that it is represented in Fig. 6 c plays encapsulation completely to the plate of tube bottom plate and case lid.In by the version of Fig. 6 b to 6d, also adopt the cup-shaped punching out pit among Fig. 6 a, but in this cup-shaped punching out pit, additionally have a through hole here.It improves the shape stability of platy structure.

Can see among this external Fig. 4 that diaphragm plate 38 tops are respectively equipped with a semi-circular recesses 70 in input cavity 36 zone, be placed in this groove by the distributing pipe 54 of Fig. 3.But distributing pipe can be with described method and whole heat exchanger soldering together in its structure of being made by the aluminium of solder brazing or corresponding aluminium alloy.

By the flexible program of Fig. 2 with by the version of Fig. 3 and 4 except do not adopt distributing pipe 54 and with its corresponding grooves 70 be consistent.Itself the input pipe 44 that leads to each input cavity 36 in addition also is made in this die casting integratedly as replenishing of the die casting of cavity separator 30.

Can see by Fig. 2 that collector 18 is seen at the length direction of flat tube 2 and be divided into two grades.All input cavities 36 of being mentioned in this grade below are contained in the flat pipe group.This grade additionally distributes and leads to the input pipe 44 of cavity 36 own in the above.This structure in this zone also is easy to be made in the die casting of an one, because input cavity 36 is open fully in the longitudinal side towards collector 18 in die casting, and the input pipe 44 of itself is open towards a side of back side flat tube 2, and only separate by a central dividing plate 72 that two shelves are separated with respect to input cavity 36, on central dividing plate, be respectively equipped with the outlet 60, about its size with carried out for distributing pipe 54 the same.

Certainly the input pipe 44 of input cavity 36 itself is supplied with the cooling agent of input jointly in flow direction front portion (upstream), also with the same for the situation of distributing pipe 54.The same with the free end of distributing pipe 54, input pipe 44 each comfortable its end of itself also seal.

Cavity separator at least in the version of described Fig. 2 to 6d so far also has under the necessary situation coolant distribution of the input distributor to each input cavity is concentrated in the die casting.This die casting can be used as an independent parts basically and is contained in the tube bottom plate 26 and case lid 28 made by sheet material of collector 18, and wherein case lid and tube bottom plate fully or mainly constitute the outer surface of collector 18.But case lid and/or tube bottom plate itself also can be respectively the die casting of an integral body.By means of Fig. 7 this is illustrated, the case lid of only it being discussed below at least in this version 28 itself is made by die casting.Wherein that works is made by the sheet material that scribbles scolder as the structure of being introduced up to now for making reason eaily for tube bottom plate, but the same as a whole die casting of the mode that also can not specify as mentioned above.Wherein should not get rid of described possibility according to Fig. 1 to 6b by the version of Fig. 9, cavity separator 30 is made independent die casting, its embeds a case lid 28 made from die casting equally, and is contained in together on the tube bottom plate 26 of also being made by die casting with case lid 28 where necessary.

Here different with previous described version even the needs where necessary made independent member with cavity separator 30 and the own input pipe 44 that leads to input cavity 36, be more preferably the distributor of cavity separator and related each input pipe 44 itself even can be completely integrated in the structure of case lid, even make fully integrated die casting.

Although above-mentioned this possibility is arranged, the input pipe 44 of itself also can be installed in the independent distributing pipe 54 by Fig. 3, for example is contained in the collector as intrinsic member, and for example is placed in the cavity separator 30 semicircular grooves 70 by Fig. 4.Wherein case lid 28, tube bottom plate 26, cavity separator 30 and distributing pipe 54 can be independent members.

Adopt in all versions of die casting in consideration of the present invention, if connector scribbles for example input pipe 14 of scolder, efferent duct 16, no matter be case lid 28 plate construction or the die casting structure, and the sheet material that scribbles scolder of the tube bottom plate of having mentioned, these die castings itself do not need solder coat so.

Case lid 28 can for example be transferred in the flexible program by Fig. 2 as the structural shape of die casting, and the input pipe 44 there itself only is contained in the zone of input cavity 36, can be integrated in the case lid where necessary.But input pipe itself can touch the midfeather 32 with output cavity 34 adjacency under extreme case, and is integrated in where necessary in the die casting of case lid 28.

Described as the version of Fig. 1 in input pipe 14 and efferent duct 16 be contained on collector 18 or its case lid 28 in end face one side.But also can consider in all cases efferent duct 16 to be contained in the longitudinal side of collector, particularly in the middle.

Fig. 7 represents a kind of version of case lid 28, wherein with the distribution of preferential mode design flow moving medium to each input pipe that leads to input cavity 36 44 own.

Here injection valve 86 parts that quiet calorifics is regulated are included in the structure of the case lid 28 of making die casting, therefore its chief component outside evaporimeter no longer takies its installing space, just as in Fig. 1 as the structure of shutoff valve 50 time situation.

Particularly the housing 88 of injection valve 86 is made of one with the die casting of case lid 28.

Other members of injection valve are made of element common on the market.Specifically on the longitudinal side of its die casting, make a screwed hole 90 on the next door of collector 18 input end faces, it obtains by drilling in following process, and can be screwed into the different degree of depth of this screwed hole at the next screw 94 of adjusting of the condition of making circumferential seal by an O RunddichtringO 92.The cavity of making in this adjustment screw 94 is held within it with one constitutes the installing space of valve spring 96, this spring is fixed on its internal end surface by a valve retainer 98, retainer its dorsad on the end face of valve spring with valve element 100, this element and valve seat 102 actings in conjunction of a sphere.

This valve element is by the closing direction pretension of spring 96 to the valve opening 104 that is surrounded by valve seat, and control input pipe 14 and one input pipe 44 that is arranged on itself leads to the connection cross section between the mixed chamber 106 before the inlet of input cavity 36.Also make a follow-up pilot hole 108 in die casting together, it stretches into mixed chamber 106 obliquely, and has the distribution function of distributing to each input pipe 44.Impact stops that (Prallfunktion) function born by the throttling function on the injection valve.

Do another screwed hole 110 that is used for installing temperature survey 112 in screwed hole 90 axial opposite die castings, this gauge head is communicated with output cavity 34.The temperature gauge head links to each other with spherical valve member 100 by a valve rod 114 of making step for this reason, and wherein valve rod has the gap with respect to the inner opening of screwed hole 110, the feasible liquid flowing connection that guarantees between output cavity 34 and the temperature gauge head.

The output cooling agent of supplying with according to the different output cavities 34 of temperature gauge head temperature is opened injection valve to some extent, makes that to adjust to one constant, by the temperature that the degree of depth is determined that is screwed into of adjusting screw 94.

Input pipe 14 and efferent duct 16 have a common adpting flange 116, and it is by means of in the bag shape screwed hole 120 on the hold-down screw 118 wedge pressure foundry goods lateral surfaces.

Claims (23)

1. the heat exchanger that is used for motor vehicle, the collector of flat tube heat exchanger particularly, at least have two structures forming by a tube sheet (26) and a case lid (28), they jointly, constitute the housing of the solder brazing of collector (18) where necessary with another member at least, wherein be equipped with one by the flat partition board (32 that intersects in the collector (18) where necessary, 40,38) the cavity separator (30) of Zu Chenging, and tube sheet (26) wherein, case lid (28) and/or cavity separator (30) are made by aluminum or aluminum alloy

It is characterized in that:

Case lid (28) and/or tube sheet (26) but together with each around shell wall be an integral die-cast part of making by brazing material.

2. by the manifold of claim 1, it is characterized in that: cavity separator (30) is integrated in the die casting of case lid (28) or tube sheet (26).

3. by the manifold of claim 2, it is characterized in that: cavity separator (30) and around shell wall have same height.

4. by the manifold of claim 1, it is characterized in that: cavity separator (30) itself is the die casting of an one, and it is contained in the housing of collector (18).

5. by each collector of claim 1 to 4, it is characterized in that: each die casting internal cavity separator (30) and/or around the free edge of shell wall on the related pin of making (64/66), it is prepared for connecting tube sheet (26) or case lid (28).

6. by claim 4 and 5 collector, it is characterized in that: on the free edge of cavity separator (30), be provided with the pin (64/66) that not only is used for connecting tube sheet (26) but also is used for connecting case lid (28).

7. by the collector of claim 6, it is characterized in that: the pin (64/66) and the pin that is used for being connected case lid (28) (64/66) alignment mutually that are used for connecting tube sheet (26).

8. by each collector of claim 4 to 7, it is characterized in that: pin (64/66) from the flat partition board (32,40,38) of cavity separator (30) and around shell wall between connecting portion and/or cavity separator (30) flat partition board (32,40,38) crossover sites is set out.

9. by each collector of claim 4 to 8, it is characterized in that: the pin (64/66) on the cavity separator (30) is preferably packed in the middle cavity of the interior flat tube of tube sheet (26) (2) lattice structure in the mode of imbedding of centre.

10. by the collector of claim 9, it is characterized in that: the flat partition board of cavity separator (30) (32,40,38) props up cylindricality ground and strengthens in the junction of these pins (64/66).

11. each the collector by claim 1 to 10 is characterized in that: the flat partition board of cavity separator (30) (32,40,38) with around shell wall between connecting portion and/or the crossover sites of cavity separator (30) flat partition board make a cylindricality reinforcement (62).

12. the collector by claim 11 is characterized in that: a cylindricality is strengthened (62) and is carried out the transition to pin (64/66).

13. by each collector of claim 4 to 12, it is characterized in that: pin (64/66) taper is stretched out.

14. each the collector by claim 1 to 11 is characterized in that: when making case lid (28), make the die casting of tube sheet (26), when making tube sheet (26), make the die casting of case lid (28) by sheet material by sheet material.

15. the collector by claim 14 is characterized in that: sheet material one side at least scribbles scolder.

16. by the collector of claim 14 or 15, it is characterized in that: the annular shell wall shape of die casting embeds plate material parts, and sheet material has a soldering articulamentum where necessary identically.

17. the collector by claim 16 is characterized in that: in the annular lip of the annular shell wall insert plate spare of die casting.

18. the collector by claim 16 is characterized in that: the annular shell wall of die casting embeds in the annular groove of being made by sheet material (52).

19. by each collector of claim 1 to 18, it is characterized in that: material is AlMn1.6 or AlSi0.5Mg.

20. by each collector of claim 1 to 19, it is characterized in that: the wall thickness of cavity separator (30) flat partition board (32,40,38) is preferably 1.0 to 1.3mm in 0.6 to 1.5mm scope.

21. by each collector of claim 1 to 20, it is characterized in that: collector (18) housing wall thickness is preferably 1.2 to 1.5mm in 1.0 to 2.0mm scope.

22. each the collector by claim 1 to 21 is characterized in that: the injection valve (86) that quiet calorifics is regulated is contained in the die casting, is preferably in the die casting of case lid (28).

23. the collector by claim 22 is characterized in that: the housing (88) of injection valve (86) is made one with die casting at least.

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