CN100516759C

CN100516759C - Connection structure of heat exchanger

Info

Publication number: CN100516759C
Application number: CNB2006100054810A
Authority: CN
Inventors: 福田和启; 吉盛文高
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2005-01-27
Filing date: 2006-01-12
Publication date: 2009-07-22
Anticipated expiration: 2026-01-12
Also published as: JP2006207920A; CN1811329A

Abstract

The invention relates to a connecting structure of a heat exchanger, wherein a storage tank (140) is formed to be tube shape and is allocated near on the front portion of an upward side of air flowing of a junction box (120), a going pipe (210) and a returning pipe (220) which are connected between a water collecting pipe (120) and the storage tank (140) are formed to be that the direction of cooling agent which flows in the inner portion is led to be nearly the same as the flow direction of core portions 110,130 , and the cooling agent turns around long the nearly same direction. Therefore, centralization of stress is lightened, and meanwhile, the invention tries for the improvement of gas-liquid separation character. Therefore, the connecting structure of the heat exchanger is equipped with a connecting part through continuously applying stress to the connecting portion, the centralization of stress in the connecting portion is lightened, and gas-liquid separation character is improved.

Description

The syndeton of heat exchanger

Technical field

The present invention relates to a kind of as heat exchanger, for example condensation part and K cryogenic treatment portion are the heat exchanger that one forms, possess the cold-producing medium that flows out from its condensation part is carried out gas-liquid separation and the holding vessel that stores and the syndeton of the heat exchanger of the attaching parts that are connected them, particularly, the syndeton that relates to a kind of attaching parts.

Background technology

In the past, as the syndeton of this heat exchanger, for example shown in the patent documentation 1, the header of heat exchanger be formed with and holding vessel between make 2 intercommunicating pores of cold-producing medium inflow and outflow, in addition, this holding vessel is formed with 2 through holes that make from the cold-producing medium inflow and outflow of header outflow.

And, the attaching parts that connect heat exchanger and holding vessel are formed with overlapping plate-like portion and make inside become 2 pipelines of hollow shape, simultaneously each pipeline is matched with each through hole at header, and dock and form with header this header and attaching parts are become one, make each through hole of each pipeline and holding vessel cooperate connection simultaneously, and connect heat exchanger and holding vessel.

Thus, be provided with attaching parts and can connect parts and form simple shape, therefore can seek the reduction of weight by bottom at holding vessel.In addition, by on attaching parts, constituting, stably support holding vessel (for example, with reference to patent documentation 1 by support component via support component and holding vessel ways of connecting.)。

Patent documentation 1: the spy opens flat 11-270927 communique

But according to above-mentioned patent documentation 1, in holding vessel, a side of through hole offers mouth in the top of jar (tank), and therefore the cold-producing medium that flows into from the bottom drips downwards from the top in the gas-liquid separation layer, causes making the cold-producing medium liquid level to confuse in view of the above.Thus, reduce gas-liquid separating characteristic and have the problem that refrigerant amount increases of enclosing.

In addition, the capacity of drier is very big in the holding vessel of use in the long refrigerating circulatory device of the rubber hose that becomes refrigerant piping as engineering machinery etc., therefore need jumbo holding vessel, but as mentioned above, in the holding vessel of the structure that gas-liquid separating characteristic reduces, can not seek miniaturization.

And, in the above-described configuration, only at bottom stationary storage jar, therefore use as vehicles such as engineering machinery vibrate under the situation in the big vehicle refrigeration EGR, the counter stress that rocks by holding vessel concentrates on as the holding vessel at the junction surface of attaching parts and might produce the crack.

Summary of the invention

At this, the present invention makes in view of the above problems, and its purpose is to provide a kind of not being applied on the connecting portion by stress to dispose attaching parts, and the stress that alleviates connecting portion is concentrated, and the syndeton of the good heat exchanger of gas-liquid separating characteristic.

The syndeton of heat exchanger of the present invention, it possesses: heat exchanger (100), it is having the core of a plurality of heat exchanging pipes (110,130) along having alignment arrangements between a pair of header (120) of vertical direction, the two ends of heat exchanging pipe are connected with two headers (120), this core (110,130) is divided into two parts up and down, and upper section is that condensation part (110), below partly are K cryogenic treatment portion (130); Holding vessel (140), near its of header (120) that is located at a side is side by side carried out gas-liquid separation and storage to the cold-producing medium that flows out from heat exchanger (100); Attaching parts (210,220), it connects a holding vessel (140) and a side's header (120) and makes the cold-producing medium internal flow; Wherein, attaching parts (210,220) have: the 1st line part that extends from an above-mentioned side's header (120); The 2nd line part that disposes abreast with the 1st line part and extend from holding vessel (140); The 3rd line part that extends abreast with these two line parts; The 1st curve part that connects the 1st line part and the 3rd line part with the curvilinear bending of slyness; And the 2nd curve part that connects the 2nd line part and the 3rd line part with the curvilinear bending of slyness; Described the 1st line part, the 2nd line part and the 3rd line part are configured to parallel with the extending direction of described heat exchanging pipe.

By flowing into cold-producing medium in the holding vessel (140) to flowing into, and can not confuse the cold-producing medium liquid level holding vessel (140) in, so improve gas-liquid separating characteristic with the roughly the same direction of the flow direction of core (110,130).Can seek the miniaturization of holding vessel (140) thus.

And, cold-producing medium is concentrated to the stress that is applied to connecting portion that flows with the roughly the same direction of the flow direction of core (110,130), can alleviate by attaching parts (210,220).Also have, in the connecting portion that the bond material by solder etc. engages, can not produce the bad situation of concentrating caused cold-producing medium to spill etc. by stress.

Preferably: holding vessel (140) forms tubular, and near upstream side the place ahead that the air that is provided in a side header (120) flows, if from directly over observe the configuration be connected a side header (120) and the attaching parts (210,220) between the holding vessel (140), then attaching parts (210,220) form roughly S word shape.

Specifically, by forming roughly S word shape, even can enough attaching parts (210,220) overall absorption to attaching parts (210,220) stress application, so stress be concentrated in the connecting portion at two ends yet.

Preferably: attaching parts (210,220) are by going pipe (210) and return pipe (220) to constitute, go cold-producing medium that pipe (210) makes the gas-liquid mixed state of condensation in above-mentioned condensation part (110) from a side header (120) importing holding vessel (140), return pipe (220) makes the liquid phase refrigerant of gas-liquid separation in holding vessel (140) turn back to a side the header (120) from holding vessel (140); In holding vessel (140), be formed with and go the pipe (210) introduction part (141) that is connected and leading-out portion (142) that is connected with return pipe 220; Leading-out portion (142) is formed on the side of the lower side of the above-mentioned holding vessel (140) that stores the liquid phase refrigerant after the gas-liquid separation, and liquid phase refrigerant is flowed to the direction identical with flow of refrigerant direction in the K cryogenic treatment portion (130); Introduction part (141) is formed on the upper side of leading-out portion (142), make gas-liquid mixed refrigerant to K cryogenic treatment portion (130) in flow of refrigerant side flow in the opposite direction.

Specifically, the introduction part (141) that flows into the cold-producing medium of gas-liquid mixed state forms and makes cold-producing medium to flowing with the roughly the same direction of the flow direction of core (110,130), therefore can not confuse the cold-producing medium liquid level.Thus, seek the miniaturization of holding vessel (140) by improving gas-liquid separating characteristic.That is, can carry in the vehicle usefulness refrigerating circulatory device capacious of drier.

In addition, leading-out portion (142) also forms and makes the liquid phase refrigerant that flows out to return pipe (220) to flowing with the roughly the same direction of the flow direction of core (110,130).Stress is not concentrated and is applied to connecting portion thus.

Preferably: the header (120) a side is formed with the K cryogenic treatment portion refrigerant inlet (122) that the condensation part cold-producing medium that is communicated with the outlet side of condensation part (110) goes out (121) and is communicated with the entrance side of K cryogenic treatment portion (130); Condensation part refrigerant outlet (121) forms the cold-producing medium that makes the gas-liquid mixed state and flows to the direction that the outlet side from above-mentioned condensation part (110) flows out; K cryogenic treatment portion refrigerant inlet (122) forms liquid phase refrigerant is flowed to the direction of the entrance side that flows into above-mentioned K cryogenic treatment portion (130); Go pipe (210) to be connected on condensation part refrigerant outlet (121) and the introduction part (141) by metal bond; Return pipe (220) is connected on K cryogenic treatment portion refrigerant inlet (122) and the leading-out portion (142) by metal bond.

Thus, condensation part refrigerant outlet (121) and K cryogenic treatment portion refrigerant inlet (122) also form and make respectively the cold-producing medium that flows out to flowing with the roughly the same direction of the flow direction of core (110,130).Thus, stress is not concentrated and is applied to connecting portion when connecting portion is carried out metal bond.

Preferably: also be provided with banded fixed part (145) and carriage (125), fixed part (145) has the adjustable fixing hole in its position (145a), and said fixing parts (145) support holding vessel (140), carriage (125) is provided in a side the header (120) and has twists the screw portion (125a) that is combined in the fixing hole (145a), and support fixation elements (145); If be based on upstream side that air flows from directly over observe the configuration that is supported on the holding vessel (140) on a side the carriage (125) of header (120) by fixed part (145), then above-mentioned carriage (125) is provided in respect to the direction parallel with the flow of refrigerant direction in the above-mentioned K cryogenic treatment portion (130) around counterclockwise having rotated 45 positions of spending.

Thus, when carrying out that holding vessel (140) is fixed on assembling on the header (120), holding vessel (140) and header (120) though on fore-and-aft direction, produce deviation also can utilize fixing hole (145a) to the left and right direction adjust the fixing hole position.Thus, can be assembled into and make stress not be applied to connecting portion.In addition, even holding vessel (140) produces deviation at above-below direction, also, therefore can easily adjust the fixing hole position because fixed part (145) forms band shape.

Preferably: above-mentioned heat exchanger (100), above-mentioned holding vessel (140) and by above-mentioned syndeton of going pipe (210) and above-mentioned return pipe (220) formation be used in engineering machinery with in the vehicle to carrying out in the refrigerating circulatory device of air conditioning in the driver's cabin.

Thus, engineering machinery with for motor vehicle refrigerating circulatory device in because it is long to become the rubber hose of refrigerant piping, so moisture enters into refrigerant loop.Thereby, need in holding vessel (140), accommodate drier in a large number.

For this reason, in the present invention, owing to do not confuse the cold-producing medium liquid level, and be equipped with the attaching parts (210,220) of the formation that can flow into, therefore can seek the miniaturization of holding vessel (140), be used in engineering machinery in view of the above with in for motor vehicle refrigerating circulatory device.

And, engineering machinery with for motor vehicle refrigerating circulatory device in because the vibration of vehicle is bigger, therefore set the connecting portion attaching parts of the formation of stress application not, be applicable to that in view of the above engineering machinery is with in for motor vehicle refrigerating circulatory device.

In addition, the corresponding relation of the concrete parts of symbolic representation in the bracket of above-mentioned each parts and embodiment described later.

Description of drawings

Fig. 1 is the subjectivity figure that the integral body of the syndeton of the heat exchanger in the expression one embodiment of the present invention constitutes.

Fig. 2 is to view at the A shown in Fig. 1.

Fig. 3 is the subjectivity figure that the integral body of the syndeton of the heat exchanger in other embodiments of expression constitutes.

Among the figure: 100-condenser (heat exchanger), 110-condensation part, core, 120-header, 121-condensation part refrigerant outlet, 122-K cryogenic treatment portion refrigerant inlet, the 125-carriage, 125a-screw portion, 130-K cryogenic treatment portion, core, 140-holding vessel, core, the 141-introduction part, 142-leading-out portion, 145-fixed part, 145a-fixing hole, 210-remove pipe (attaching parts), 220-return pipe (attaching parts).

The specific embodiment

Below, the syndeton of the heat exchanger among the present invention is described based on Fig. 1 and Fig. 2.Fig. 1 is the integrally-built subjective figure of the syndeton of expression heat exchanger, and Fig. 2 is to view at the A shown in Fig. 1.

In the present embodiment, the present invention is applicable to that the driver's cabin to engineering machinery such as hydraulic excavators carries out the refrigerating circulatory device towards engineering truck of air conditioning.Promptly, the feature of this refrigerating circulatory device owing to use long rubber hose by refrigerant piping, the capacity that is arranged on the drier of holding vessel becomes big, therefore requires jumbo holding vessel.And,, therefore exist and rock big feature because the vibration specific surface also wants big to the refrigerating circulatory device of general vehicle.

The syndeton of the heat exchanger of present embodiment such as Fig. 1 and as shown in Figure 2 are that condenser 100, holding vessel 140, attaching parts constitute by the heat exchanger of multithread road type, and these attaching parts by go to manage 210 and return pipe 220 constitute.

Condenser 100 as shown in Figure 1, a plurality of pipes 111 of the flat of cold-producing medium circulation are arranged on the long side direction (horizontal direction), respectively manage the fin 112 of the waveform that is equipped with the heat exchange that promotes cold-producing medium and air between 111 at it, and being formed with core 110,130, this core 110,130 disposes by this fin 112 side by side and manages 111 pairs of cold-producing mediums and heat exchanging pipe that air carries out heat exchange.

In addition, be equipped with to the header 120 that extends and be communicated with the direction (vertical direction) of long side direction (horizontal direction) quadrature of pipe in pipe 111 both end sides with a plurality of pipes 111.And, collector pipe 120 a side is provided with the 120a of refrigerant inlet portion, the 120b of refrigerant outlet portion, simultaneously in both sides' header 120, not shown dividing plate is set, from the cold-producing medium of the 120a of refrigerant inlet portion inflow, to flow out the refrigerant outlet 120b of portion along arrow h from the arrow a shown in the figure.

Therefore, above-mentioned core 110,130 by above-mentioned dividing plate (not shown) divide into condensation part 110 (from shown in the figure with a b to arrow d) and K cryogenic treatment portion 130 (the arrow g shown in the figure).And, be provided with condensation part refrigerant outlet 121 that is communicated with the outlet side of condensation part 110 and the K cryogenic treatment portion refrigerant inlet 122 that is communicated with the entrance side of K cryogenic treatment portion 130 at the opposing party's collector pipe 120.

And refrigerant outlet 121 sides in condensation part are gone to manage 210 and are connected with described later, and refrigerant inlet 122 1 sides of K cryogenic treatment portion are connected with return pipe 220 described later.Further specifically, condensation part refrigerant outlet 121 and K cryogenic treatment portion refrigerant inlet 122, insert respectively at this opening part and to manage 210 or an end of return pipe 220 and connect by the metal bond of having used solder to the mode opening that flows out with the roughly the same direction of the outflow direction of core 110,130 with cold-producing medium.

Thereby the cold-producing medium of the gas-liquid mixed state that is condensed in condensation part 110 is managed in 210 to flowing into the roughly the same direction of the outflow direction of core 110,130 by condensation part refrigerant outlet 121.And, the liquid phase refrigerant that flows out from holding vessel 140 by K cryogenic treatment portion refrigerant inlet 122 to flowing out to K cryogenic treatment portion 130 with the roughly the same direction of the outflow direction of core 110,130.

Then, holding vessel 140 is a kind of accumulators, its utilization removes to manage the cold-producing medium of 210 importings gas-liquid mixed state of condensation in condensation part 110, and in jar, be separated into vapor phase refrigerant and liquid phase refrigerant and store remaining cold-producing medium in the kind of refrigeration cycle, flow out liquid phase refrigerants to K cryogenic treatment portion 130 simultaneously.

Holding vessel 140 is containers of the hollow shape of the section tubular that forms the circular shape, its base plate (not shown) is fastened on the holding vessel 140 by twisting to close, and is equipped with the drier 143 of removing the moisture in the cold-producing medium and the maintainable filter 144 of removing the dust in the cold-producing medium in the inside of hollow shape.In addition, drier 143 is filled in the non-woven bag and is provided in the gas-liquid separation layer, and filter 144 is provided in the layer that stores liquid phase refrigerant.

And, forming leading-out portion 142 storing the mode that is connected return pipe 220 described later by the side of the lower side of the liquid phase refrigerant of gas-liquid separation, and be formed with introduction part 141 at holding vessel 140 near 210 the mode of going to manage described later of connection above its leading-out portion 142.At this, the equipping position of introduction part 141 is preferably near above the filter 144.

And, leading-out portion 142 and introduction part 141 are as shown in Figure 2, so that cold-producing medium is to the mode opening that flows with the roughly the same direction of the flow direction of core 110,130, inserts respectively at this opening part and to manage 210 or an end of return pipe 220 and connect by the metal bond of having used solder.

Thereby, from the cold-producing medium that removes to manage the 210 gas-liquid mixed states that import by introduction part 141 to flowing in the holding vessel 140 with the roughly the same direction of the flow direction of core 110,130.And, liquid phase refrigerant by leading-out portion 142 to flowing out in the return pipe 220 with the roughly the same direction of the flow direction of core 110,130.

Then, connect going between header 120 and the holding vessel 140 and manage 210 and return pipe 220, for stress is not concentrated the connecting portion that is applied to two ends, and whole shape is formed: the flow direction that makes cold-producing medium wherein is roughly the same and cold-producing medium is reversed end for end to this roughly the same direction with the flow direction of core 110,130, and has fixed the connection of carrying out connecting portion after the holding vessel 140 on header 120.

At first, go to manage 210 and the shape of the integral body of return pipe 220 as shown in Figure 2, with be connected going between header 120 and the holding vessel 140 manage 210 and return pipe 220 be configured to observe from the upstream side that air flows vertical with air-flow direction, and from directly over observation form roughly S word shape.

If further specifically describe this global shape, then go to manage 210 and return pipe 220 have: the 1st line part, it extends from header 120; The 2nd line part, itself and the 1st line part almost parallel ground dispose and extend from holding vessel 140; The 3rd line part, itself and these 2 line part almost parallel ground extend; The 1st curve part, its curvilinear bending with slyness connects the 1st line part and the 3rd line part; The 2nd curve part, its curved bending with slyness connects the 2nd line part and the 3rd line part.

At this, the 1st line part is from header 120 and the directions pipe opposite side direction of 111 engage side and those pipe bearing of trend almost parallels of 111 the ratio of elongation specific length of lacking simply.The 1st curve part is from the end of the 1st line part to the curve of the upstream side bending of air-flow direction, approximately crooked 180 degree further arrive the upstream side that flows at air and provide and the rightabout end of the 1st line part from the face of the air intake side of core 110,130.

The 3rd line part parallel with the face of the air intake side of core 110,130 and with the extension of pipe 111 bearing of trend almost parallel ground.The 2nd curve part is from the end of the 3rd line part to the upstream side of air-flow direction, and crooked upward curve, and approximately crooked 180 degree and providing point to and the rightabout end of the 3rd line part.

The 2nd curve part is forming 2 bends and the above-below direction extension between them on the above-below direction.In addition, the 2nd curve part forms circular-arc curve on air-flow direction.The 2nd line part extends simply with specific length from the end of the 2nd curve part and arrives the cylindrical lateral wall face of holding vessel 140.In addition, the 2nd line part radially extends along it from the cylindrical lateral wall face of holding vessel 140.

In addition, return pipe 220, it forms the 2nd long line part and the 3rd line part in order to form less times greater than going to manage 210 length.In addition, holding vessel 140 is configured to: the upstream side that the is based on air-flow direction upstream of its a part of position and header 120 at least is overlapping, and its part reaches the core 110,130 of arranging pipe 111.

As mentioned above the roughly S word shape of Xing Chenging go manage 210 and return pipe 220 prevent concentrating of stress on one side, the binding of the fluid-type between the assigned position of the assigned position of collector pipe 120 and holding vessel 140 is provided on one side, holding vessel 140 can be configured in simultaneously on the position as shown.

In addition, going to manage 210 also allows the interval of connecting portion of two pipes 210,220 of the interval of connecting portion of two pipes 210,220 of header 120 sides and holding vessel 140 sides different with return pipe 220.Its result, be arranged on going on the header 120 manage 210 and return pipe 220 between 2 connecting portions on the basis of the restriction on the structure of header 120 sides, on the function, set.

On the other hand, be arranged on holding vessel 140 go manage 210 and return pipe 220 between 2 connecting portions in the restriction on the structure of holding vessel 140 sides, on the function, for example consider to set on the basis of gas-liquid separation performance etc.Thus, even to going to manage 210 and return pipe 220 stress applications also can spend pipe 210 and return pipe 220 integral body absorb, so stress is not concentrated on the connecting portion at two ends.

But, for going to manage 210 and the connecting portion at the two ends of return pipe 220, when on a side header 120, holding vessel 140 being installed, if because fixedly generation position deviation between header 120 and the holding vessel 140 and installation forcibly, then on connecting portion, be easy to generate stress and concentrate, therefore header 120 and holding vessel 140 are fixed in the mode of the position deviation of absorption left and right directions, fore-and-aft direction, above-below direction.

Further specifically, as shown in Figure 2, fixed part 145 stationary storage jar 140 on header 120 at first by constituting by band shape.That is, by using the fixed part 145 that constitutes by band shape can adjust or absorb the position deviation of above-below direction.In addition, form and to raise the long hole shape that the hole site is decided in solidating with the roughly the same direction of the flow direction of core 110,130 being formed on fixing hole 145a on the fixed part 145.

And, to have the stubborn carriage 125 that is combined in the 125a of screw portion among the 145a of said fixing hole is configured on the header 120, and the direction that mating surface is in relatively and the flow direction of core 110,130 is roughly the same that makes fixing hole 145a is to the position around about about 1/8 circle that counterclockwise tilts (about 45 degree).In view of the above, can attract above-mentioned left and right directions, the position deviation of fore-and-aft direction easily.

And, on header 120, go to manage 210 and the connecting portion of return pipe 220 with connecting after the fixed part 145 stationary storage jars.Thus, stress can not concentrated and be applied to connecting portion.In addition, Fig. 2 be based on upstream side that air flows from directly over observe the vertical view of the configuration of header 120 and holding vessel 140.

In addition, in the present embodiment,, can make that rocking of causing diminishes by the vibration of holding vessel 140, therefore be applicable to the refrigerating circulatory device that vibration is big basically towards engineering truck by fixed part 145 being located at least 2 places of above-below direction.

Then, effect according to the syndeton of above-mentioned heat exchanger is described.High-pressure refrigerant with not shown compressor compresses flow in the condenser 100 by the 120a of refrigerant inlet portion.And, in condensation part 110, cold-producing medium flows to the direction of arrow d from the arrow b shown in Fig. 1, carries out heat exchange with air simultaneously and the cold-producing medium of the gas-liquid mixed state of condensation flow into to the direction identical with the flow direction of core 110,130 by condensation part refrigerant outlet 121 and manages in 210.

And, going to manage in 210, cold-producing medium to the direction with roughly the same direction of the flow direction of core 110,130 and roughly the same direction tune along it flow and by introduction part 141 to flowing in the holding vessel 140 with the roughly the same direction of the flow direction of core 110,130.And, in holding vessel 140 according to the difference of proportion, the lower side that vapor phase refrigerant is moved upward, liquid phase refrigerant stores and form the cold-producing medium liquid level.

At this moment, cold-producing medium is given the speed of holding vessel 140 horizontal direction compositions and the confusion of cold-producing medium liquid level is diminished.Can not reduce gas-liquid separating characteristic thus.And, liquid phase refrigerant by leading-out portion 142 to flowing in the return pipe 220 with the roughly the same direction of the flow direction of core 110,130.

And, in return pipe 220, cold-producing medium to the roughly the same direction of the flow direction of core 110,130, and the direction of roughly the same direction tune along it flows and by K cryogenic treatment portion refrigerant inlet 122 to flowing in the K cryogenic treatment portion 130 with the roughly the same direction of the flow direction of core 110,130.And, in K cryogenic treatment portion 130, flow on the direction shown in the arrow g of cold-producing medium in Fig. 1, carry out heat exchange and carry out supercooling with air simultaneously.

And the cold-producing medium after the supercooling flows out in the not shown mechanism of decompressor by the 120b of refrigerant outlet portion.At this moment, go to manage 210 and return pipe 220 in global shape is formed roughly S word shape, therefore, though with stress be applied to manage 210 and return pipe 220 in also can with go to manage 210 and the integral body of return pipe 220 absorb, so stress is not concentrated on the connecting portion at two ends.

Syndeton according to the heat exchanger of an above-mentioned embodiment, by with attaching parts go manage 210 and return pipe 220 form: make the flow direction of the direction of cold-producing medium of internal flow and core 110,130 roughly the same, and cold-producing medium is along this roughly the same direction tune, the cold-producing medium that flow into holding vessel 140 is to the direction inflow roughly the same with the flow direction of core 110,130, cold-producing medium liquid level in the holding vessel 140 can not confuse in view of the above, therefore improves gas-liquid separating characteristic.Can seek the miniaturization of holding vessel 140 thus.

And, go to manage 210 and return pipe 220 stress that cold-producing medium can be alleviated on the connecting portion that is applied to two ends to flowing with the roughly the same direction of the flow direction of core 110,130 concentrate.Also have, in the connecting portion that engages with grafting materials such as solders, can not produce by bad situations such as spilling of the concentrated caused cold-producing medium of stress.

In addition, holding vessel 140 forms tubular and is provided near upstream side the place ahead that the air of header 120 flows, if from directly over observe and to be connected going between header 120 and the holding vessel and to manage 210 and the configuration of return pipe 220, then go to manage 210 and return pipe 220 form roughly S word shape, thus, even with stress be applied to manage 210 and return pipe 220 on also can with go to manage 210 and return pipe 220 integral body absorb, so stress is not concentrated on the connecting portion at two ends.

In addition, about holding vessel 140, storing the leading-out portion 142 that is connected with return pipe 220 by the formation of the side of the lower side of the liquid phase refrigerant after the gas-liquid separation, this leading-out portion 142 make liquid phase refrigerant to core 110, the roughly the same direction of 130 flow direction flows, and, near above this leading-out portion 142, form the introduction part 141 that is connected with return pipe 220, the cold-producing medium that this introduction part 141 makes the gas-liquid mixed state to core 110, the roughly the same direction of 130 flow direction flows through, thereby, the introduction part 141 that flows into the cold-producing medium of gas-liquid mixed state be formed make cold-producing medium to core 110, the roughly the same direction of 130 flow direction flows, therefore can chaotic cold-producing medium liquid level.Thus, seek the miniaturization of holding vessel 140 by improving gas-liquid separating characteristic.That is, can carry in the vehicle usefulness refrigerating circulatory device capacious of drier.

In addition, leading-out portion 142 also is formed and makes the liquid phase refrigerant that flows out in the return pipe 220 to flowing with the roughly the same direction of the flow direction of core 110,130.Thus, stress can not concentrated and be applied on the connecting portion.

Introduction part 141 make via go to manage 210 and return pipe 220 import the approximate centre position of the direction of the cold-producing medium in holding vessel 140 towards holding vessel 140.

In addition, on a side header 120, be formed with the condensation part refrigerant outlet 121 that is communicated with the outlet side of condensation part 110 so that the K cryogenic treatment portion refrigerant inlet 122 that the cold-producing medium of gas-liquid mixed state is communicated with the entrance side of K cryogenic treatment portion 130 to flowing with the roughly the same direction of the flow direction of core 110,130, being formed with simultaneously so that liquid phase refrigerant to mobile with the roughly the same direction of the flow direction of core 110,130.

And, be connected on condensation part refrigerant outlet 121 and the introduction part 141 by metal bond by going to manage 210, simultaneously return pipe 220 is connected on K cryogenic treatment portion refrigerant inlet 122 and the leading-out portion 142 by metal bond, makes respectively the cold-producing medium that flows out to flowing with the roughly the same direction of the flow direction of core 110,130 and form.Thus, stress is concentrated when connecting portion is carried out metal bond is applied on the connecting portion.

In addition, have and decide the fixing hole 145a of hole site raising solidating, also be provided with fixed part 145 support holding vessel 140, that constitute by band shape with the roughly the same direction of the flow direction of core 110,130.Also have and twist the 125a of screw portion that is combined in fixing hole 145a, and the carriage of support fixation elements 145 is located on the header 120.

And, by its carriage is set for: make the mating surface of fixing hole 145a be positioned at relatively with the roughly the same direction of the flow direction of core 110,130 to 1/8 position of enclosing that approximately tilts around counterclockwise, when being fixed on holding vessel 140 on the header 120, though holding vessel 140 and header 120 to the left and right, fore-and-aft direction produce deviation also can utilize fixing hole 145a to the left and right direction adjust the fixing hole position.

Thus, can with to connecting portion not the mode of stress application install.In addition, even holding vessel 140 produces deviation on above-below direction, also, therefore can easily adjust the fixing hole position because fixed part 145 forms band shape.

In addition, by with condenser 100, holding vessel 140 and by go to manage 210 and the syndeton that constitutes of return pipe 220 use and carrying out in the refrigerating circulatory device of air conditioning with the driver's cabin in the vehicle engineering machinery, and in this refrigerating circulatory device, because it is long to become the rubber hose of refrigerant piping, therefore can in refrigerant loop, enter moisture.Thereby, need in holding vessel 140, accommodate drier 143 in a large number.

At this, in the present invention since set do not confuse cold-producing medium liquid level ground flow into cold-producing medium formation go to manage 210 and return pipe 220, seek the miniaturization of holding vessel 140, so be applicable to that engineering machinery is with in for motor vehicle refrigerating circulatory device.

And, in the refrigerating circulatory device that engineering machinery is used,,, and can be applicable to that engineering machinery is with in for motor vehicle refrigerating circulatory device therefore by setting to the connecting portion attaching parts of the formation of stress application not because the vibration of vehicle is bigger.

(other embodiments)

In an above-mentioned embodiment, as following formation: leading-out portion 142 and introduction part 141 are formed on the holding vessel 140, in this leading-out portion 142 and introduction part 141, insert and go to manage 210 or the other end of return pipe 220 and connect by metal bond, but be not limited thereto, specifically, also can constitute as shown in Figure 3: set flange 146 is set, on this set flange 146, form leading-out portion 142 and introduction part 141, in this leading-out portion 142 and introduction part 141, insert and go to manage 210 or the other end of return pipe 220 and connect, will gather flange 146 afterwards and be fastened on the holding vessel 140 by screw by metal bond.

In addition, except the metal bond of using solder, attaching parts that can also use live pipe bolt, union nut etc. by twist close fastening.In addition, in the above-described embodiment, with go to manage 210 and the global shape of return pipe 220 form roughly S word shape, but be not limited thereto, also can make up a plurality of bends cold-producing medium is flowed swimmingly.

In addition, in the above-described embodiment, fixed part 145 is provided in 2 places, but is not limited thereto, also can be provided in a place.In addition, the present invention is applicable to be carried out with the driver's cabin in the vehicle on the refrigerating circulatory device of air conditioning engineering machinery, but is not limited thereto.

Claims

1, a kind of syndeton of heat exchanger, it possesses:

Heat exchanger (100), it has core (110,130) along between a pair of header (120) of vertical direction, this core (110,130) alignment arrangements has a plurality of heat exchanging pipes, the two ends of these heat exchanging pipes are connected with two headers (120), and, this core (110,130) is divided into two parts up and down, and upper section is that condensation part (110), below partly are K cryogenic treatment portion (130);

Holding vessel (140), it is located near a side the header (120) side by side, is used for the cold-producing medium that flows out from above-mentioned heat exchange (100) is carried out gas-liquid separation and storage;

Attaching parts (210,220), it connects an above-mentioned holding vessel (140) and an above-mentioned side's header (120) and makes cold-producing medium in internal flow;

It is characterized in that,

Above-mentioned attaching parts (210,220) have: the 1st line part of stretching from an above-mentioned side's header (120); The 2nd line part that disposes abreast with the 1st line part and extend from holding vessel (140); The 3rd line part that extends abreast with these two line parts; The 1st curve part that connects the 1st line part and the 3rd line part with the curvilinear bending of slyness; And the 2nd curve part that connects the 2nd line part and the 3rd line part with the curvilinear bending of slyness;

Described the 1st line part, the 2nd line part and the 3rd line part are configured to parallel with the extending direction of described heat exchanging pipe.

2, the syndeton of heat exchanger according to claim 1 is characterized in that,

Above-mentioned holding vessel (140) forms tubular, and is provided near upstream side the place ahead of air-flow direction of header (120) of an above-mentioned side;

From directly over observe when being connected the configuration of an above-mentioned side's header (120) and the above-mentioned attaching parts (210,220) between the above-mentioned holding vessel (140), above-mentioned attaching parts (210,220) form roughly S word shape.

3, the syndeton of heat exchanger according to claim 1 and 2 is characterized in that,

Above-mentioned attaching parts (210,220) are by going pipe (210) and return pipe (220) formation,

The above-mentioned cold-producing medium that removes pipe (210) the gas-liquid mixed state that will be condensed in above-mentioned condensation part (110) imports the above-mentioned holding vessel (140) from an above-mentioned side's header (120),

Above-mentioned return pipe (220) will be turned back to an above-mentioned side's the header (120) from above-mentioned holding vessel (140) by the liquid phase refrigerant of gas-liquid separation in above-mentioned holding vessel (140);

On above-mentioned holding vessel (140), be formed with and above-mentioned pipe (210) introduction part (141) that is connected and the leading-out portion (142) that is connected with above-mentioned return pipe (220) that go;

Above-mentioned leading-out portion (142) is formed on the side of lower side of the above-mentioned holding vessel (140) that stores the liquid phase refrigerant after the gas-liquid separation, is used for making liquid phase refrigerant to flow to the direction identical with the flow of refrigerant direction of above-mentioned K cryogenic treatment portion (130);

Above-mentioned introduction part (141) is formed on the upper side of above-mentioned leading-out portion (142), is used for making gas-liquid mixed refrigerant to flowing in the opposite direction with the flow of refrigerant side of above-mentioned K cryogenic treatment portion (130).

4, the syndeton of heat exchanger according to claim 3 is characterized in that,

On an above-mentioned side's header (120), be formed with condensation part refrigerant outlet (121) that is communicated with the outlet side of above-mentioned condensation part (110) and the K cryogenic treatment portion refrigerant inlet (122) that is communicated with the entrance side of above-mentioned K cryogenic treatment portion (130);

Above-mentioned condensation part refrigerant outlet (121) forms the cold-producing medium that makes the gas-liquid mixed state and flows to the direction that the outlet side from above-mentioned condensation part (110) flows out;

Above-mentioned K cryogenic treatment portion's refrigerant inlet (122) forms liquid phase refrigerant is flowed to the direction of the entrance side that flows into above-mentioned K cryogenic treatment portion (130);

The above-mentioned pipe (210) that goes is connected on above-mentioned condensation part refrigerant outlet (121) and the above-mentioned introduction part (141) by metal bond;

Above-mentioned return pipe (220) is connected on above-mentioned K cryogenic treatment portion's refrigerant inlet (122) and the above-mentioned leading-out portion (142) by metal bond.

5, the syndeton of heat exchanger according to claim 2 is characterized in that,

Also be provided with banded fixed part (145) and carriage (125),

Said fixing parts (145) have the fixing hole (145a) that can adjust its position, and said fixing parts (145) support above-mentioned holding vessel (140),

The header (120) that above-mentioned carriage (125) is provided in an above-mentioned side is gone up and is had the screw portion (125a) that is combined in the said fixing hole (145a) of twisting, and supports said fixing parts (145);

Be based on upstream side that air flows from directly over when observing the configuration of the above-mentioned holding vessel (140) on the above-mentioned carriage (125) of the header (120) that is supported on an above-mentioned side by said fixing parts (145), above-mentioned carriage (125) is provided in: with respect to the direction parallel with the flow of refrigerant direction in the above-mentioned K cryogenic treatment portion (130) around counterclockwise having rotated on 45 positions of spending.

6, according to the syndeton of claim 1,2 or 5 described heat exchangers, it is characterized in that,

Above-mentioned heat exchanger (100), above-mentioned holding vessel (140) and by above-mentioned syndeton of going pipe (210) and above-mentioned return pipe (220) formation be used to engineering machinery with in the vehicle to carrying out the refrigerating circulatory device of air conditioning in the driver's cabin.

7, the syndeton of heat exchanger according to claim 3 is characterized in that,

8, the syndeton of heat exchanger according to claim 3 is characterized in that,

Above-mentioned introduction part (141) makes via above-mentioned attaching parts (210,220) and imports the approximate centre position of the direction of the cold-producing medium in the above-mentioned holding vessel (140) towards above-mentioned holding vessel (140).