CN100543351C - The pipe joint structure of pipe joint apparatus, heat exchanger and pipeline group is installed to the method for heat exchanger - Google Patents
The pipe joint structure of pipe joint apparatus, heat exchanger and pipeline group is installed to the method for heat exchanger Download PDFInfo
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- CN100543351C CN100543351C CNB2007100052932A CN200710005293A CN100543351C CN 100543351 C CN100543351 C CN 100543351C CN B2007100052932 A CNB2007100052932 A CN B2007100052932A CN 200710005293 A CN200710005293 A CN 200710005293A CN 100543351 C CN100543351 C CN 100543351C
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Abstract
A kind of pipe joint structure comprises: a plurality of fluid flow passages parts (10,11); Bearing (12), described bearing (12) is connected to the fluid flow passages part; Connecting plate (13), described connecting plate (13) is arranged near bearing; A plurality of pipelines (14,15), described a plurality of pipelines (14,15) are connected to each other by connecting plate; And sealed member (16,17), described sealed member (16,17) is arranged between a plurality of pipelines and the bearing.Described bearing comprises attachment portion (121), and described attachment portion (121) are positioned to cover the edge of connecting plate and a plurality of pipelines are fixed on a plurality of fluid flow passages parts.Described pipe joint structure can be suitable for heat exchanger.
Description
Technical field
The present invention relates to a kind of pipe joint apparatus that a plurality of fluid flow passages parts are connected with a plurality of pipelines, a kind of heat-exchanger pipeline joint structure that uses pipe joint apparatus, and a kind of pipeline group being installed to method on the heat exchanger, they all are suitable for using in the refrigerant tubing joint of the refrigerant cycle of for example air bells conditioner.
Background technique
So far, in patent documentation 1 for example, disclose these and be used for the pipe joint structure of heat exchanger.Particularly, in heat exchanger, radiating fin is arranged between a plurality of pipes that refrigeration agent flows through it forming the core part, and a pair of case partly is arranged on the two ends of a plurality of pipes.Near the bearing that the entrance and exit side is connected to fluid flow passages is arranged on a case part, and allow refrigeration agent to flow into it to become to be fixed on the bearing with entrance and exit pipe configuration from its outflow.
Core part, case part form one with bearing by use being connected of hard solder (brazing) in stove.In stove after the hard solder, the opening side entrance and exit pipeline, be arranged on bearing in the end of a side, then, the entrance and exit pipeline is by torch brazing (perhaps torch brazing in another Connection Step; Torch brazing) is connected to bearing.In other words, the entrance and exit pipeline is fixed on the fluid flow passages via being seated against heat exchanger side by the connection of torch brazing mode.
Disclosed the method for a kind of inlet pipeline known, stationary heat exchangers and fluid flow passages in the patent documentation 2.In patent documentation 2, insert cylindrical part and be formed at the bump that protrudes on the radially outward direction on the top side of pipeline, and first, second and the 3rd circumferential surface are formed on the top side of fluid flow passages so that the insertion at pipeline top.
Insert cylindrical part and be inserted in first circumferential surface, the sealed member that keeps fluid tightness is near second circumferential surface, and bump is inserted in the 3rd circumferential surface.Top side and sealed member that the top of pipeline is inserted into fluid flow passages are arranged on the back of inserting cylindrical part.The top side of the 3rd circumferential surface be inside plastic deformation so as when pipeline to be inserted in the fluid flow passages and pipeline be fixed together.
Patent documentation 1:JP-A-2004-28393
Patent documentation 2:JP-A-2001-280558
Yet, disclosed in patent documentation 1, in making heat exchanger, in another step, carry out torch brazing and will cause the increase of processing cost in Connection Step unfriendly.In addition, in the process of transporting hot exchanger, inlet pipe and outlet conduit protrude from heat exchanger after torch brazing.This causes being unfavorable for heat exchanger is transported to the assembly working place that heat exchanger will be assembled into air conditioning duct, and causes heat exchanger to worsen in the interim storage capacity in assembly working place.
In order to improve rodability and interim storage capacity,, a kind of method with fastening stationary heat exchangers has been proposed as disclosing in the patent documentation 2.In the case, the fluid flow passages on entrance and exit pipeline and the entrance and exit side is separated to fix, thereby causes the increase of the quantity of number of assembling steps.And, the set-up procedure that the connection pitch between the pipeline is adjusted need be set, this causes lower productivity unfriendly.
Summary of the invention
Consider the problems referred to above, the purpose of this invention is to provide a kind of pipe joint apparatus, a kind of heat-exchanger pipeline joint structure and a kind of pipeline group is installed to method on the heat exchanger, can reduce and prevent the problems referred to above effectively like this.
According to an aspect of the present invention, a kind of pipe joint apparatus comprises: a plurality of fluid flow passages parts; Bearing, described bearing is connected to the fluid flow passages part; Connecting plate, described connecting plate is arranged near bearing; A plurality of pipelines, described a plurality of pipelines are connected to each other by connecting plate; And sealed member, described sealed member is arranged between a plurality of pipelines and the bearing.And described bearing comprises the attachment portion, and described attachment portion is positioned to cover the edge of connecting plate and a plurality of pipelines are fixed on a plurality of fluid flow passages parts.Therefore, utilize simple joint structure, a plurality of pipelines can be fixed on a plurality of fluid flow passages jointly.This can reduce number of assembling steps, thereby boosts productivity.Even the connection pitch between a plurality of pipelines is set hour, these pipelines also can be stabilized, thereby make the bearing miniaturization.For example, the attachment portion of bearing can be secured to connecting plate so that cover the edge of connecting plate.With carry out the stationary phase ratio by torch brazing, this can reduce the processing cost in the manufacturing.In addition because be out of shape less, by the fastening fixing validity that can improve the connection pitch between the pipeline.
According to a further aspect in the invention, a kind of heat-exchanger pipeline joint structure comprises: heat exchanger, described heat exchanger include oral-lateral refrigerant flow paths part and outlet side refrigerant flow paths part; Bearing, described bearing are connected to inlet side refrigerant flow paths part and outlet side refrigerant flow paths part; Connecting plate, described connecting plate is arranged near bearing; Inlet pipe and outlet conduit, an end of described inlet pipe and an end of described outlet conduit are connected to each other by connecting plate; Joint, described joint are arranged on the other end of inlet pipe and the other end of outlet conduit, so that in conjunction with the other end of inlet pipe and the other end of outlet conduit; And sealed member, described sealed member is arranged between entrance and exit pipeline and the bearing.And described bearing comprises the attachment portion, and described attachment portion is positioned to cover the edge of connecting plate and inlet pipe and outlet conduit are fixed on inlet side refrigerant flow paths part and the outlet side refrigerant flow paths part.In the case, inlet pipe and outlet conduit can be fixed on inlet side refrigerant flow paths and the outlet side refrigerant flow paths jointly.In other words, two pipelines can once be fixed on two refrigerant flow paths.This can reduce the number of number of assembling steps, thereby boosts productivity.Even set hour when the pitch that is connected between inlet pipe and the outlet conduit, these pipelines also can be stabilized, thereby make the bearing miniaturization.
For example, the attachment portion can be secured to the edge of connecting plate on the whole periphery of connecting plate.Alternatively, any one in attachment portion and the connecting plate can comprise fastening part, and the surface of described fastening part has formation projection and depression thereon.In the case, (perhaps overwhelm in crushing; Crushing) after the projection, described attachment portion is secured on the connecting plate.
According to a further aspect in the invention, a kind of pipeline group is installed to method on the heat exchanger, comprise: the step of preparation heat exchanger, described heat exchanger have inlet side refrigerant flow paths part and the outlet side refrigerant flow paths part on the bearing of being connected to; The step of preparation inlet pipe and outlet conduit, thus an end of an end of inlet pipe and outlet conduit is connected to each other by connecting plate, and the other end of the other end of inlet pipe and outlet conduit is provided with joint and is connected on the joint; By sealed member being arranged between entrance and exit pipeline and the bearing, with inlet pipe and outlet conduit at one end side be connected respectively to inlet side refrigerant flow paths part and outlet side refrigerant flow paths step partly; With by bearing being processed into the edge that bearing covers connecting plate, inlet side refrigerant flow paths part and outlet side refrigerant flow paths are fixed to step on inlet pipe and the outlet conduit.Therefore, inlet pipe and outlet conduit can be fixed on inlet side refrigerant flow paths and the outlet side refrigerant flow paths jointly.In other words, two pipelines can once be fixed on two refrigerant flow paths.This can reduce the number of number of assembling steps, thereby boosts productivity.Even set hour when the pitch that is connected between inlet pipe and the outlet conduit, these pipelines also can be stabilized, thereby make the bearing miniaturization.
For example, the step that inlet side refrigerant flow paths part and outlet side refrigerant flow paths is fixed to inlet pipe and outlet conduit comprises: by being formed on the attachment portion at bearing place, tighten the edge of connecting plate at the whole periphery of connecting plate.Alternatively, resin-coating processing can be carried out in described attachment portion after being fastenedly connected the edge of plate.And, the step of preparation inlet pipe and outlet conduit comprises: by be inserted into inlet pipe and outlet conduit in the through hole that is formed in the connecting plate, the size by the pipeline of expansion in through hole then, inlet pipe and outlet conduit are fixed to step on the connecting plate; With after being fixed to inlet pipe and outlet conduit on the connecting plate, near the step that is being formed on the ring uplift part of protruding on the radially outward direction connecting plate.Alternatively, inlet pipe and outlet conduit are connected to the step that a side that inlet side refrigerant flow paths part and outlet side refrigerant flow paths step partly can be included in the sealed member placement of connecting plate is provided with sacrificial etched material.
Description of drawings
By detailed description of the preferred embodiment with reference to the accompanying drawings, other purpose of the present invention and advantage will be more obvious.Accompanying drawing is as follows:
Fig. 1 is the partial sectional view of demonstration according to the schematic structure of the vaporizer (heat exchanger) of first embodiment of the invention;
Fig. 2 is the left side view of the vaporizer among Fig. 1;
Fig. 3 is the schematic representation of whole structure of pipe joint structure that shows first embodiment's vaporizer;
Fig. 4 shows that wherein inlet pipe and outlet conduit are fixed to the schematic representation of the state of bearing;
Fig. 5 A to 5D shows the interpretation maps of execution according to the operating procedure of first embodiment's pipeline assembling method;
Fig. 6 A to 6C is each partial sectional view that shows the pipe joint structure of the vaporizer (heat exchanger) that is used for according to second embodiment of the invention;
Fig. 7 A to 7F is the perspective view that shows according to the connecting plate of third embodiment of the invention;
Fig. 8 is the schematic representation that shows the installation form of pipe joint structure in air conditioning duct among the 3rd embodiment;
Fig. 9 A to 9C is the interpretation maps of demonstration according to the structure of the fastening part of fourth embodiment of the invention;
Figure 10 is the partial sectional view that is presented at the processing of the resin-coating after fastening in the 4th embodiment's the modified example;
Figure 11 is the partial sectional view that shows the pipe joint structure that is used for the vaporizer (heat exchanger) according to fifth embodiment of the invention;
Figure 12 is the partial sectional view that shows the pipe connecting structure of the vaporizer (heat exchanger) in the modified example that is used for the 5th embodiment; With
Figure 13 is the partial sectional view of demonstration according to the pipe joint structure of the vaporizer (heat exchanger) of modification of the present invention.
Embodiment
First embodiment
With reference to Fig. 1 to 5D the first embodiment of the present invention is described below.
Fig. 1 is the partial sectional view of demonstration according to the schematic structure of first embodiment's vaporizer 1.As shown in fig. 1, vaporizer 1 as the heat exchanger example is made up of core part 2, top box 6 and nowel 7 and side plate 8, described core part 2 comprises and replaces stacked pipe 3 and radiating fin 4, described top box 6 and nowel 7 are arranged on the top and bottom of core part 2, and described side plate 8 is at the two end supports radiating fin 4 of core part 2.Inlet side refrigerant flow paths 10 is connected to the intake section 61 of top box 6, contiguous simultaneously side plate 8.Outlet side refrigerant flow paths 11 is connected to exit portion 62.Bearing 12 is connected to the connecting end of these refrigerant flow paths 10,11.
Vaporizer 1 is made of the layout of two pipelines on the fore-and-aft direction (see figure 2), and each pipeline is made up of core part 2, top box 6 and nowel 7.Vaporizer 1 exchange current is crossed the refrigeration agent of a plurality of pipes 3 and by the heat of the blower that does not illustrate between the air that fore-and-aft direction blows out, thereby Cryogenic air (cool air) is blown in the compartment.
It should be noted, as described here, term " fore-and-aft direction " refer to the air stream that blows out by blower from windward side to side with the wind or from side with the wind to the direction of windward side.For example, in Fig. 1, the front side of paper is corresponding to the front side of vaporizer 1, and the rear side of paper is corresponding to the rear side of vaporizer 1, and left and right directions is perpendicular to the direction of fore-and-aft direction.In this embodiment, pipe 3 and radiating fin 4 lamination on corresponding to the laminating direction of left and right directions, and manage 3 upper and lowers in Fig. 1 and extend upward.
Each pipe 3 forms flat rectangle cylinder form (flat rectangular cylindricalshape), and has insertion interior radiating fin within it to form a plurality of flow passages.Each pipe 3 has the two ends that are inserted in top box 6 and the nowel 7 to form circulation flow passage.
As mentioned above, because top box 6 and nowel 7 are arranged in described two preceding pipelines and the back pipeline, so a plurality of pipe 3 is divided into four groups that are positioned at forward and backward, left and right pipeline altogether.Refrigeration agent flows into from intake section 61 and goes up left back case part 6A, flows in the following sequence by each pipe 3 then: following rear cabinet part 7A, go up right back case part 6B, go up right front case part 6D, front case part divides 7B and last left front case part 6C down.After this, refrigeration agent flows to vaporizer 1 outside by exit portion 62 from last left front case part 6C.
The pipe 3 of Xing Chenging, top box 6 and nowel 7 become parts by assembling each other with Construction integration in the mode of hard solder respectively.That is, in top box 6, a plurality of rectangular openings 63 are arranged on the direction of flow passage parallel to each other, and an end of each pipe 3 is inserted in a plurality of rectangular openings 63 one.The protruding 3a that protrudes from rectangular opening 63 of pipe 3 is fixed on the lower wall 64 of top box 6 by hard solder.
And in nowel 7, the protruding 3a of pipe 3 and the protruding 8a of side plate 8 are fixed on the upper wall 65 of nowel 7 in the mode identical with above-mentioned situation by hard solder.
As shown in Figure 2, inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11 make their end be connected to the last left back case part 6A and the last left front case part 6C of top box 6, and inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11 are parallel to pipe 3 extends downwards, simultaneously from the neutral position of core part 2 to front curve.
The end of inlet side refrigerant flow paths 10 is connected to the inlet side circumferential section 127a that is formed in the bearing 12, and the end of outlet side refrigerant flow paths 11 is connected to the outlet side circumferential section 127b that is formed in the bearing 12.Bearing 12 is fixed to inlet pipe 14 and outlet conduit 15 with inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11.Thus, inlet pipe 14 can be fixed and be not connected by hard solder jointly with outlet conduit 15.
Particularly, as shown in Fig. 3 and 4, the inlet pipe 14 and the outlet conduit 15 that are connected by connecting plate 13 are arranged in the bearing 12, and are tightened to the peripheral edge that covers connecting plate 13 by the attachment portion 121 on the upper end (top) that will be formed on bearing 12 and are fixed on the bearing 12.
To describe pipe connecting structure now, inlet pipe 14 and outlet conduit 15 are connected on the bearing 12 in described pipe connecting structure.As mentioned above, an end of inlet pipe 14 and an end of outlet conduit 15 are connected to each other by connecting plate 13 and are fixing, and joint 20 is removably disposed in the other end of inlet pipe and the other end of outlet conduit.
Except the diameter dimension difference, inlet pipe 14 and outlet conduit 15 are of similar shape, and are all made by aluminium material.The ring uplift part 18,19 that radially outward protrudes is integrally formed near the top of inlet pipe 14 and outlet conduit 15.
Being used to install inlet side as the O type circle 16,17 of sealed member inserts cylindrical part 22 and outlet side and inserts cylindrical part 23 and be formed on farther top side from bump 18,19.Connecting plate 13 is arranged to the inside near bump 18,19, promptly abuts against on the surface on the side relative with side bump 18,19, that 0 shape ring 16,17 is mounted thereto.
Connecting plate 13 use aluminum or aluminum alloy sheet material material form has oval substantially profile.On thickness direction, pass the inlet side through hole 13a and the outlet side through hole 13b of plate, be formed on the longitudinal direction of connecting plate 13 one distolateral and another distolateral on.Inlet pipe 14 and outlet conduit 15 are inserted into and are fixed to inlet side through hole 13a and outlet side through hole 13b respectively, thereby are connected pitch (attachment pitch) (for example, apart from) between location inlet pipe 14 and the outlet conduit 15.Inlet pipe 14 and outlet conduit 15 are by enlarging inlet side through hole 13a and the outlet side through hole 13b that size is respectively fixed to connecting plate 13.
In these elements, the first inner periphery part 122a, 122b and the first bound fraction 125a, 125b form and make their inner periphery near the external frame of bump 18,19.The second inner periphery part 123a, 123b form make their inner periphery near the peripheral edge of O shape ring 16,17 to form sealing surfaces.The 3rd inner periphery part 124a, 124b form inlet side and insert cylindrical part 22 and outlet side and insert cylindrical part 23 and can be inserted in it and insert between cylindrical part 22 and the outlet side insertion cylindrical part 23 with inlet side at the 3rd inner periphery part 124a, 124b and do not have the space.
By circumferential section 127a, 12b being connected on inlet side refrigerant flow paths 10 and the outlet side refrigerant flow paths 11, bearing 12 can use hard solder and vaporizer 1 to make with being integral.Reference character 128 is the tap holes of water that are used for being stored in towards outside drain the root side of attachment portion 121.A plurality of tap holes 128 are formed on the outer periphery of root side of attachment portion 121.
In this embodiment's vaporizer 1, because bearing 12 is arranged on the Vertical direction (top is to bottom direction), so condensed water that on inlet pipe 14 and outlet conduit 15, occurs, invade the inside of the bottom of connecting plate 13 by the gap in caulking position (restraint location), or invade the following inside of bearing 12 and the root of attachment portion 121.Condensed water can outwards discharge from a plurality of tap holes 128.That is, condensed water never is stored in the gap and reaches O shape and encircles 16,17 sealing surfaces.
And in vaporizer 1, under the load condition of the part of refrigeration cycle, the condensed water that occurs in vaporizer 1 freezes sometimes.At this moment, the condensed water of 121 root side also can freeze sometimes in the attachment portion.Condensed water volume when freezing of invading close clearance increases, but tap hole 128 makes the internal pressure of attachment portion 121 outwards discharge, thereby prevents the bursting by freezing in the bearing 12.
In this embodiment, bearing 12 uses the plate material punching press to form, but the invention is not restricted to this.Bearing 12 can form by die casting (die-casting).In the case, bearing 12 is subjected to cutting process to be shaped.Yet this cutting process can cause the problem that increases processing cost.
Describing with reference to Fig. 5 A to 5D below is used to use above-mentioned layout inlet pipe 14 and outlet conduit 15 to be fixed to the pipeline assembling method of the pipe connecting structure on the bearing 12.Bearing 12 is assembled into each assembly that includes oral-lateral refrigerant flow paths 10 and outlet side refrigerant flow paths 11 integratedly, and described inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11 will be connected on the vaporizer 1 as shown in figs. 1 and 2.
In other words, circumferential section 127a, the 127b of bearing 12 is coupled in the end portion of inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11, and is assembled into each assembly of vaporizer 1 temporarily.Under this state, circumferential section is connected to each other in stove integratedly by hard solder.
Then, the vaporizer 1 that bearing 12, inlet side refrigerant flow paths 10 and outlet side refrigerant flow paths 11 are connected thereto by hard solder, the hard solder machining area is transferred to the pipeline assembling operational site that is used to assemble inlet pipe 14 and outlet conduit 15 in the stove.In the pipeline group process of assembling, at first, as shown in Fig. 5 A, preparation is formed with the connecting plate 13 of inlet side through hole 13a and outlet side through hole 13b.That is, in Fig. 5 A, preparation is provided with inlet side at separately an end and inserts inlet pipe 14 and the outlet conduit 15 that cylindrical part 22 and outlet side insert cylindrical part 23 and be provided with joint 20 at the other end separately.
And in Fig. 5 A, inlet side inserts cylindrical part 22 and outlet side insertion cylindrical part 23 is inserted into respectively in insertion in the inlet side through hole 13a and outlet side through hole 13b of connecting plate 13.By inlet pipe 14 and outlet conduit 15 are formed the inner periphery that enlarges inlet side through hole 13a and outlet side through hole 13b, connecting plate 13 is fixed to its precalculated position.In this insertion and expansion step, the connection pitch between inlet pipe 14 and the outlet conduit 15 is determined, thereby has improved the accuracy that connects pitch.
Secondly, as shown in Fig. 5 B, bump 18,19 is processed to form on the lower end side of inlet pipe 14 and outlet conduit 15 by protuberance, and described inlet pipe 14 and outlet conduit 15 are provided with connecting plate 13.In this protuberance step, an end face (lower end surface among Fig. 5 B) of connecting plate 13 abuts against on the bump 18,19.
Then, as shown in Fig. 5 C, the vaporizer 1 that preparation inlet side refrigerant flow paths 10, outlet side refrigerant flow paths 11 and bearing 12 are connected thereto.And preparation inlet pipe 14 and outlet conduit 15, an end separately of described inlet pipe 14 and outlet conduit 15 is connected plate 13 and is connected, and the other end separately of described inlet pipe 14 and outlet conduit 15 is connected by joint 20.
Then, inlet pipe 14 and outlet conduit 15 are inserted into the inlet side patchhole 12a and the outlet side patchhole 12b of bearing 12 respectively, so that be fixed on the bearing 12, and O shape ring 16,17 is installed in respectively, and inlet side inserts cylindrical part 22 and outlet side inserts on the cylindrical part 23.Inlet pipe 14, outlet conduit 15 and bearing 12 are by hard solder or fastening and fixing.
Next, as shown in Fig. 5 D, the attachment portion 121 of bearing 12 is by caulking and being fastened on the whole periphery, thereby covers the edge of connecting plate 13.In this fastening step, inlet pipe 14 and outlet conduit 15 are fixed to bearing 12.
As mentioned above, inlet pipe 14 and outlet conduit 15 are fixing by connecting plate 13, can be connected to jointly on the bearing 12 then.This can reduce the number of assembling steps number, thereby boosts productivity.Even the connection pitch between inlet pipe 14 and outlet conduit 15 is set lessly, these pipelines also can be stabilized, thereby make bearing 12 miniaturizations.
The edge of connecting plate 13 is fastening by attachment portion 121 on whole periphery, thereby connecting plate 13 can be fixedly secured on the bearing 12.In addition, the whole periphery at connecting plate 13 tightens the sealing surfaces that connecting plate 13 can prevent condensed water intrusion O shape ring 16,17.
This kind vaporizer 1 normally is arranged on the heat exchanger in air conditioning duct (not shown) air conditioner, that be formed from a resin that is used for vehicle.The vaporizer 1 that includes oral-lateral refrigerant flow paths 10, outlet side refrigerant flow paths 11 and bearing 12 is at first made in the hard solder stove, is transported to the place of assigning a work at air conditioning duct then from the hard solder operational site.
As mentioned above, be used to be arranged into the place of assigning a work on the air conditioning duct, inlet pipe 14 is connected with outlet conduit 15 and is fixed to bearing 12.Because inlet pipe 14 and outlet conduit 15 are designed to the place assembling of assigning a work in air conditioning duct, so vaporizer 1 can be transported to the place of assigning a work at the air conditioning duct place before being connected to inlet pipe 14 and outlet conduit 15.This has improved the rodability and the interim storage capacity of vaporizer 1.
Although in this embodiment, the edge of connecting plate 13 is connected part 121 on whole periphery fastening, the invention is not restricted to this, and the peripheral edge of connecting plate 13 can be connected part 121 local caulkings and fastening.
And the convex portion that 121 inner periphery protrudes towards the attachment portion can form and be tightened to the upper surface near connecting plate 13.Connecting plate 13 is not limited to fastening with being connected of bearing 12.Connecting plate 13 also can be affixed on the bearing 12 by bolt.
In this embodiment, bump 18,19 inserts in cylindrical part 22 and the outlet side insertion cylindrical part 23 by the inlet side that protuberance processing (bulge process) is formed on inlet pipe 14 and outlet conduit 15, and O shape ring 16,17 is arranged on, and inlet side inserts cylindrical part 22 and outlet side inserts on the outer periphery separately of cylindrical part 23, thereby near bump 18,19, but, the invention is not restricted to this.Alternatively, the recessed groove of annular can be formed on inlet side by spinning and insert in cylindrical part 22 and the outlet side insertion cylindrical part 23, and O shape ring 16,17 can be installed in the recessed groove.
The operation that below description is had the vaporizer 1 of said structure.In refrigeration cycle, in vaporizer, be inflated the vapour-liquid two phase refrigerant of valve (not shown) step-down, with the outside air heat-shift with vaporized refrigerant, and flow out as refrigerant gas.Liquid refrigerant is incorporated into the intake section 61 of the last left back case part 6A of vaporizer 1 from inlet pipe 14 by inlet side refrigerant flow paths 10.
After the vapour-liquid two phase refrigerant inflow of introducing intake section 61 was gone up in the left back case part 6A, the vapour-liquid two phase refrigerant was passed through pipe 3 and outside air exchanged heat, thereby flow into down in the rear cabinet part 7A.The refrigeration agent that flows into rear cabinet part 7A down flows to the right side from the left side of rear cabinet part 7A down, and further upwards is inducted into pipe 3, for example goes up right back case part 6B then, simultaneously and flow through the outside air exchanged heat of managing between 3.
After this, refrigeration agent right front case part 6D from the last right back case part 6B inflow, and go into down from last right front case part 6D is guided downward that front case part divides 7B by managing 3, simultaneously and flow through outside air exchanged heat between the pipe 3.Front case part divides the refrigeration agent of 7B to move to the left side from the right side under flowing into, and is upwards mobile by pipe 3 then.Refrigeration agent by last left front case part 6C, in vaporizer outside 1 to flow to the order of outlet side refrigerant flow paths 11, bearing 12 and outlet conduit 15 from exit portion 62, be directed into the compressor of refrigeration cycle.
At this moment, condensed water occurs at inlet pipe 14 and outlet conduit 15 places.Especially, shift in the gap between the edge of condensed water that the root of inlet pipe 14 and outlet conduit 15 the occurs fastening part by attachment portion 121 and connecting plate 13, and the inside of intrusion connecting plate 13.Because a plurality of tap holes 128 are formed on the root (underpart) of attachment portion 121, condensed water is discharged into the outside of bearing 12 from these tap holes 128.
The condensed waters that enter the inside of connecting plate 13 or invade towards connecting plate 13 inside are freezing sometimes based on the load condition of refrigeration cycle.Even at this moment, the pressure that occurs when the volumetric expansion of condensed water in freezing also can discharge condensed water from tap hole 128.This can prevent the bursting by freezing in the joint structure (joint structure).
By the attachment portion 121 of fastening bearing 12, bearing 12 is fixed to connecting plate 13.Thus, for example the high work of cost of another fixed component of screw rod or rivet and for example torch brazing will not need, and this causes the reduction of processing cost.And, under situation about not connecting, can improve the validity that is connected pitch between inlet pipe 14 and the outlet conduit 15 by torch brazing.
Second embodiment
Below with reference to Fig. 6 A to 6C the second embodiment of the present invention is described.
In a second embodiment, for the anti-corrosion property of the sealing surfaces that improves O shape ring 16,17, sacrificial etched material 13c forms near the sealing surfaces that is positioned at O shape ring 16,17.Promptly; by sacrificial etched material 13c being arranged near the connecting plate 13; abut against the position of the inner periphery that is formed on the second inner circumferential portion 123a, 123b in the bearing 12 in the peripheral edge of O shape ring 16,17, improved the corrosion protection characteristic of the sealing surfaces of 0 shape ring 16,17.
At first, as shown in Fig. 6 A, in an end face side of the O of connecting plate 13 shape ring 16,17 placements, sacrificial etched material 13c and connecting plate 13 are integrally formed.In other words, connecting plate 13 forms sacrificial etched material 13c and abuts against each end face that is formed on the bump 18,19 in inlet pipe 14 and the outlet conduit 15.
Therefore, the distance D (seeing Fig. 6 A) of the sacrificial etched protection of the sealing surfaces of ring 16,17 can be shortened from the end face of sacrificial etched material 13c to O shape on pipeline connecting direction.Thus, even because corrosion has appearred in the condensed water in the bearing 12, the potential difference between the material of sacrificial etched material 13c and bearing 12 also only causes sacrificial etched.Although sacrificial etched material 13c is corrosive, the sealing surfaces of O shape ring 16,17, promptly the inner periphery of the second inner periphery part 123a, 123b can be avoided corrosion.
Fig. 6 B has shown another example of second embodiment.As shown in Fig. 6 B, sacrificial etched material 13c can be positioned on two end faces of connecting plate 13, and forms one with connecting plate 13.Compared to said circumstances, this can expand the consumption interval (consumption interval) of sacrificial etched material 13c.And when inlet pipe 14 and outlet conduit 15 were fixed to connecting plate 13, sacrificial etched material 13c was arranged on two surface side of connecting plate 13, and this causes not having difference between the front side of connecting plate 13 and the rear side, thereby this can prevent mistake assembling of connecting plate.
Although in the example of above-mentioned Fig. 6 A and 6B, sacrificial etched material 13c and connecting plate 13 form as one, and the invention is not restricted to this.Connecting plate 13 can be made of sacrificial etched parts 13c.And as shown in Fig. 6 C, another sacrificial etched material 13c can form the shape of packing ring, and is being arranged on the pipe connecting direction between bump 18,19 and the O shape ring 16,17.
This can greatly shorten sacrificial etched guard space D, thus the feasible effectively corrosion that can prevent the sealing surfaces of O shape ring 16,17.Although in each example of Fig. 6 A to 6C, only show the structure of outlet conduit 15, identical structure can be applied to inlet pipe 14 sides.
In a second embodiment, other structure and method can be caught to first embodiment in the structure described similar with method.
The 3rd embodiment
Below with reference to Fig. 7 A to 8 third embodiment of the present invention is described.
Although in the above-described embodiments, a plurality of tap holes 128 are formed in the root (end portion) of attachment portion 121 of bearing 12 so that discharge and enter the condensed water of bearing 12, and tap hole 138a to 138f can be formed in the connecting plate 13.In the case, as shown in Fig. 7 A to 7F, tap hole 138a to 138f can be formed on diverse location.
When bearing 12 and connecting plate 13 vertically or on above-below direction, be arranged to inlet pipe 14 on (above-below direction among Fig. 7 A) and outlet conduit 15 is arranged on the above-below direction, promptly on gravitational direction the time, as shown in Figure 7A, tap hole 138a, 138b can be formed on the top and bottom of connecting plate 13.That is, tap hole 138a, 138b can be arranged on the topmost portion and lowermost part of plate on the gravitational direction at least.
Therefore, the gap between the edge of fastening part that the condensed water that occurs in the root of inlet pipe 14 and outlet conduit 15 will be by attachment portion 121 and connecting plate 13 is shifted, is entered with the inside towards connecting plate 13.Yet the tap hole 138a that is arranged on lowermost part can discharge condensation water to the outside of connecting plate 13.The tap hole 138b that is arranged on topmost portion has the release function of the air in the discharging connecting plate 13.
The condensed water that is stored in the gap between the edge of bearing 12 and connecting plate 13 freezes under a part of load condition of refrigeration cycle.For example, differ from one another on the temperature of refrigeration agent of inside at the inlet pipe of arranging on the above-below direction 14 and outlet conduit 15 by them.That is, the refrigerant temperature in lower inlet pipeline 14 is lower than the temperature at the refrigeration agent of upper outlet pipeline 15, and is more Zao than outlet conduit 15 sides thereby the refrigeration agent of inlet pipe 14 sides begins to freeze.
In the case, as shown in Fig. 7 B, tap hole 138c can be formed near the top of inlet side through hole 13a, and described inlet side through hole 13a is formed on downside on gravitational direction.Tap hole 138c and inlet side through hole 13a are integrally formed, and form semi-circular shape substantially.Therefore, even when condensed water begins to freeze in the bottom of connecting plate 13 and descends tap hole 138a to close most, internal pressure also can be released near the tap hole 138c inlet side through hole 13a.In other words, during volumetric expansion, near the tap hole 138c inlet side through hole 13a has the function that pressure discharges in condensed water is freezing.This can prevent bearing 12 bursting by freezing.
In some cases, vaporizer 1 is mounted obliquely within the air conditioner that is used for vehicle in the air conditioning duct (not shown).For example, as shown in Figure 8, when the tiltangle of vaporizer 1 became big, the attachment portion 121 interior tap holes 128 that are formed on bearing 12 were not positioned at lowermost part on gravitational direction.
In the case, the downside of connecting plate 13 is positioned at lowermost part from the lower end of described bearing 12.As shown in Fig. 7 C, tap hole 138d is formed between the inlet side through hole 13a and outlet side through hole 13b of connecting plate 13.
As shown in Fig. 7 D, can form in such a manner from the upwardly extending tap hole 138e of inlet side through hole 13a, promptly be formed near the tap hole 138c of inlet side through hole 13a and be connected to the tap hole 138d that is formed on the neutral position between inlet side through hole 13a and the outlet side through hole 13b.Utilize this layout, by tap hole 138e being arranged between inlet side through hole 13a and the outlet side through hole 13b, for the air conditioner that is used for vehicle, the vaporizer 1 of inclination becomes and is suitable for being installed on the air conditioning duct (not shown).
When the attachment portion 121 of fastening bearing 12, need be used to keep the bed die (bottom die) of the bottom of bearing.Yet the bottom of this embodiment's bearing 12 has complicated shape.This embodiment's bed die forms the exterior section that supports first, second and the 3rd inner periphery part 122a, 122b, 123a, 123b, 124a, 124b.
Thus, in fastening step, in some cases, the flat of connecting plate 13 promptly the flat between inlet side through hole 13a and the outlet side through hole 13b, and bump 18,19 between be formed with the gap.As shown in Fig. 7 E, the linear position of the inlet side through hole 13a that tap hole 138f is formed at connecting plate 13 and the outside of the mid point between the outlet side through hole 13b, i.e. edge externally.
In other words, each tap hole 138f is formed on the external margin at the mid point of the long side of connecting plate 13.Therefore, even when condensed water begins to freeze in the inside of connecting plate 13 and be stored in condensate freezes in the gap between flat and the bump 18,19, internal pressure also can discharge from nigh tap hole 138f is set.
As shown in Fig. 7 F, a plurality of tap hole 138a to 138f are formed on and make in the connecting plate 13 and can carry out draining and pressure release according to the installation form on the air conditioning duct (not shown).And at least two among the tap hole 138a to 138f can be arranged in the connecting plate 13.
In the 3rd embodiment, other parts can manufacture similar to the part among above-mentioned first or second embodiment.
The 4th embodiment
With reference to Fig. 9 A to 9C the fourth embodiment of the present invention is described below.
In the 4th embodiment, joint structure forms condensed water and does not enter the attachment portion 121 of bearing 12 and the fastening part between the connecting plate 13.In other words, the fastening surface of attachment portion 121 forms and becomes metal seal.As shown in Fig. 9 A, projection forms in the plane at the edge near connecting plate 13, and crushed then with caulking and the surface that is fastenedly connected part 121.Thus, fastening part (caulking part) is used as metal seal, thereby prevents that condensed water from entering the sealing surfaces of O shape ring 16,17.
Alternatively, as shown in Fig. 9 B, projection can be formed on the plane of attachment portion 121 of bearing 12, and is crushed then to be fastened to attachment portion 121.And as shown in Fig. 9 C, in being fastenedly connected part 121, the edge of connecting plate 13 strikes the beam with by caulking, thereby prevents that condensed water from invading the sealing surfaces of 0 shape ring.Although in each of Fig. 9 A to 9C, have only the structure of outlet conduit 15 sides to be illustrated, identical structure also can be applied to inlet pipe 14 sides.
Although in this embodiment, in bearing 12 and the connecting plate 13 any one forms metal seal at fastening part, but after fastening attachment portion 121, as shown in Figure 10, can carry out resin-coating processing so as between the tip that covers attachment portion 121 and the connecting plate 13 near being the whole periphery of fastening part partly, thereby prevent that condensed water from invading from fastening part.
Thus, even when the edge of connecting plate 13 is fastening by the part, resin-coating processing also can seal carrier 12 and connecting plate 13 between the gap.This can prevent condensed water intrusion sealing surfaces.
In the 4th embodiment, the other parts of pipe joint structure can manufacture similar to any the part among above-mentioned first to the 3rd embodiment.
The 5th embodiment
With reference to Figure 11 and 12 fifth embodiment of the present invention is described below.
In the above-described embodiments, inlet pipe 14 and outlet conduit 15 are respectively fixed on the connecting plate 13 by using extended dimensionally bump 18,19, thereby but also can further be provided with bump 18a, 19a utilizes bump 18,19 that connecting plate 13 is sandwiched the centre as shown in Figure 11.This can guarantee that inlet pipe 14 and outlet conduit 15 be fixed to connecting plate 13 and guarantee the pitch that is connected between inlet pipe 14 and the outlet conduit 15.
Be processed to form inlet side at inlet pipe 14 and outlet conduit 15 by protuberance at bump 18,19 and insert after cylindrical part 22 and outlet side insert the precalculated position of cylindrical part 23, bump 18a, 19a can be formed in inlet pipe 14 and the outlet conduit 15.
Then, connecting plate 13 can be inserted into a side near bump 18,19, and additional ridge part divides 18a, 19a to be processed to form by protuberance under the situation that connecting plate 13 is inserted into.Thus, connecting plate 13 can be sandwiched between two bumps 18 and the 18a (19 and 19a), thereby inlet pipe 14 and outlet conduit 15 are fixed to connecting plate 13.
Although in an embodiment, connecting plate 13 forms and is sandwiched between two bumps 18 and the 18a (19 and 19a), the invention is not restricted to this.Alternatively, as shown in Figure 12, connecting plate 13 can be provided with recessed portion 13d, 13e, and the female part 13d, 13e are near an end face of bump 18,19, then, thus inlet pipe 14 and outlet conduit 15 can enlarge an end face of bump 18,19 dimensionally near recessed portion 13d, 13e.
This can improve the intensity of pipeline on release direction (connecting direction), and prevents error group load fishplate bar 13 when being fixed to inlet pipe 14 and outlet conduit 15 in the connecting plate.
Other embodiment
Although the present invention is described in conjunction with its preferred embodiment fully with reference to accompanying drawing, be noted that a lot of variations and revise to become clearly for those of ordinary skills.
For example, in the above-described embodiments, attachment portion 121 hold and caulking covering the edge of connecting plate 13, but the invention is not restricted to this.Alternatively, as shown in Figure 13, attachment portion 121 can tilt and be tightened to and have inside inclined-plane, thus the upper surface of extruding connecting plate 13.On the contrary, for winding and fastening, need two fastening steps.Therefore, this example among Figure 13 can be omitted on the direction of inclined surface a further inside fastening step, thereby reduces manufacture cost.
Although in the above-described embodiments, bearing 12 forms and is fixed on the inlet pipe 14 with about 1/2 inch external diameter and has on the outlet conduit 15 of about 5/8 inch external diameter, and the external diameter of pipeline is not limited thereto.
In described embodiment, the present invention is applied to the vaporizer 1 of the refrigeration cycle that is used for vehicle air-conditioning apparatus.But the present invention can not only be applied to vaporizer 1, and can be applied to other suitable heat exchanger.And, replace heat exchanger, the present invention to be applied to being used for the pipe joint apparatus that two fluid flow passages are connected with two pipelines.The present invention can be applied to and be used for pipe joint apparatus that three or more fluid flow passages are connected with three or more pipelines.
These variations and modification will be understood that to be in protection scope of the present invention defined by the claims.
Claims (27)
1, a kind of pipe joint apparatus comprises:
A plurality of fluid flow passages parts (10,11);
Bearing (12), described bearing (12) is connected to the fluid flow passages part;
Connecting plate (13), described connecting plate (13) is arranged near bearing;
A plurality of pipelines (14,15), described a plurality of pipelines (14,15) are connected to each other by connecting plate; With
Sealed member (16,17), described sealed member (16,17) is arranged between a plurality of pipelines and the bearing,
Wherein said bearing comprises attachment portion (121), and described attachment portion (121) are positioned to cover the edge of connecting plate and a plurality of pipelines are fixed on a plurality of fluid flow passages parts.
2, pipe joint apparatus according to claim 1, the attachment portion of wherein said bearing are secured to connecting plate so that cover the edge of connecting plate.
3, a kind of heat-exchanger pipeline joint structure comprises:
Heat exchanger (1), described heat exchanger (1) include oral-lateral refrigerant flow paths part (10) and outlet side refrigerant flow paths part (11);
Bearing (12), described bearing (12) are connected to inlet side refrigerant flow paths part and outlet side refrigerant flow paths part;
Connecting plate (13), described connecting plate (13) is arranged near bearing;
Inlet pipe (14) and outlet conduit (15), an end of an end of described inlet pipe (14) and described outlet conduit (15) is connected to each other by connecting plate (13);
Joint (20), described joint (20) is arranged on the other end of inlet pipe and the other end of outlet conduit, so that in conjunction with the other end of inlet pipe and the other end of outlet conduit; With
Sealed member (16,17), described sealed member (16,17) is arranged between entrance and exit pipeline and the bearing,
Wherein said bearing comprises attachment portion (121), and described attachment portion (121) are positioned to cover the edge of connecting plate and inlet pipe and outlet conduit are fixed on inlet side refrigerant flow paths part and the outlet side refrigerant flow paths part.
4, heat-exchanger pipeline joint structure according to claim 3, the attachment portion of wherein said bearing are secured on the connecting plate so that cover the edge of connecting plate.
5, heat-exchanger pipeline joint structure according to claim 4, wherein said attachment portion are secured to the edge of connecting plate on the whole peripheral part of connecting plate.
6, heat-exchanger pipeline joint structure according to claim 3,
In wherein said attachment portion and the described connecting plate any one comprises fastening part, and the surface of described fastening part has formation projection and depression thereon, and
Wherein after the described projection of crushing, described attachment portion is secured on the connecting plate.
7, according to each described heat-exchanger pipeline joint structure among the claim 3-6,
Wherein said connecting plate is provided with through hole (13a, 13b), and inlet pipe and outlet conduit are inserted in the described through hole (13a, 13b), and
Wherein said inlet pipe and described outlet conduit are by being fixed on the through hole in expansion on the radial dimension.
8, according to each described heat-exchanger pipeline joint structure among the claim 3-6,
Wherein said inlet pipe and described outlet conduit have ring uplift part (18,18a, 19,19a), and described ring uplift part (18,18a, 19,19a) is formed near the connecting plate and protrudes on radially outer direction.
9, according to each described heat-exchanger pipeline joint structure among the claim 3-6, further comprise
Sacrificial etched material (13c), described sacrificial etched material (13c) is positioned on the connecting plate.
10, heat-exchanger pipeline joint structure according to claim 9, wherein said sacrificial etched material (13c) is positioned at side connecting plate, place that sealed member is arranged.
11, according to each described heat-exchanger pipeline joint structure among the claim 3-6, further comprise sacrificial etched material (13c), described sacrificial etched material (13c) is positioned at the both sides of connecting plate.
12, heat-exchanger pipeline joint structure according to claim 8 further comprises
Sacrificial etched material (13c), described sacrificial etched material (13c) is between sealed member and ring uplift part.
13, heat-exchanger pipeline joint structure according to claim 8, wherein said connecting plate have recessed portion (13d, 13e), and the female part (13d, 13e) is near an end face of ring uplift part.
14, according to each described heat-exchanger pipeline joint structure among the claim 3-6, wherein said bearing has the tap hole (128) that is formed between attachment portion and the sealed member.
15, according to each described heat-exchanger pipeline joint structure among the claim 3-6, wherein said connecting plate has within it tap hole of formation (138a-138f).
16, heat-exchanger pipeline joint structure according to claim 15, wherein when inlet pipe and outlet conduit were arranged on above-below direction, described tap hole was arranged on the uppermost position in fig-ure and the upper/lower positions of connecting plate at least on gravitational direction.
17, heat-exchanger pipeline joint structure according to claim 15, wherein when inlet pipe and outlet conduit are arranged on above-below direction, described tap hole is arranged on the upper/lower positions place of connecting plate and the top side that is arranged on inlet pipe at least at least, and described inlet pipe is arranged on the downside place on the connecting plate.
18, heat-exchanger pipeline joint structure according to claim 15, wherein when inlet pipe and outlet conduit were arranged on above-below direction, described tap hole was arranged between the inlet pipe and outlet conduit of connecting plate.
19, heat-exchanger pipeline joint structure according to claim 18, wherein said tap hole is arranged on the external margin of the connecting plate between inlet pipe and the outlet conduit.
20, according to each described heat-exchanger pipeline joint structure among the claim 3-6, further comprise
Resinous coat, described resinous coat is positioned at the fastening part of attachment portion, and the fastening part of described attachment portion is secured to the edge of connecting plate.
21, a kind of pipeline group is installed to method on the heat exchanger, said method comprising the steps of:
Preparation heat exchanger (1), described heat exchanger (1) have inlet side refrigerant flow paths part (10) and the outlet side refrigerant flow paths part (11) on bearing of being connected to (12);
Preparation inlet pipe (14) and outlet conduit (15), one end of one end of inlet pipe (14) and outlet conduit (15) is connected to each other by connecting plate (13), and the other end of the other end of inlet pipe (14) and outlet conduit (15) is provided with joint (20) and is connected on the joint (20);
By sealed member (16,17) is arranged between entrance and exit pipeline and the bearing, with inlet pipe and outlet conduit at one end side be connected respectively to inlet side refrigerant flow paths part and outlet side refrigerant flow paths part; With
By bearing being processed into the edge that bearing covers connecting plate, inlet side refrigerant flow paths part and outlet side refrigerant flow paths are fixed on inlet pipe and the outlet conduit.
22, according to claim 21 pipeline group is installed to method on the heat exchanger, the step that wherein inlet side refrigerant flow paths part and outlet side refrigerant flow paths is fixed to inlet pipe and outlet conduit comprises: by being formed on the attachment portion at bearing place, tighten the edge of connecting plate at the whole periphery of connecting plate.
23, according to claim 22 pipeline group is installed to method on the heat exchanger,
In wherein said attachment portion and the described connecting plate any one comprises fastening part, and the surface of described fastening part has formation projection and depression thereon, and
Wherein after fastening part crushing projection, the attachment portion of described bearing is secured on the connecting plate.
24, described pipeline group is installed to method on the heat exchanger according to claim 22 or 23, wherein after being fastenedly connected the edge of plate, the resin-coating process has been carried out in described attachment portion.
25, according to each describedly installs to method on the heat exchanger with pipeline group among the claim 21-23, the step that wherein prepares inlet pipe and outlet conduit may further comprise the steps:
By inlet pipe and outlet conduit are inserted into the size of passing through to enlarge the pipeline in through hole in the through hole (13a, 13b) that is formed in the connecting plate, then, inlet pipe and outlet conduit are fixed on the connecting plate; With
After being fixed to inlet pipe and outlet conduit on the connecting plate, be formed on the ring uplift part protruded on the radially outward direction (18,18a, 19,19a) near the connecting plate.
26,, wherein inlet pipe and outlet conduit are connected to the step that a side that inlet side refrigerant flow paths part and outlet side refrigerant flow paths step partly be included in the sealed member placement of connecting plate is provided with sacrificial etched material (13c) according to each describedly installs to method on the heat exchanger with pipeline group among the claim 21-23.
27, according to each describedly installs to method on the heat exchanger with pipeline group among the claim 21-23, wherein said heat exchanger is arranged on the vaporizer (1) in the air conditioning duct that is formed from a resin, and described method further may further comprise the steps:
In the hard solder stove, make after the vaporizer, vaporizer is transported to the place of assigning a work at air conditioning duct from the hard solder operational site,
Wherein said inlet pipe partly is connected with the outlet side refrigerant flow paths with inlet side refrigerant flow paths part with outlet conduit, and described entrance and exit pipeline is fixed in the place of assigning a work at air conditioning duct place on inlet side refrigerant flow paths part and the outlet side refrigerant flow paths part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006041420 | 2006-02-17 | ||
| JP2006041420 | 2006-02-17 | ||
| JP2007003926 | 2007-01-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101025244A CN101025244A (en) | 2007-08-29 |
| CN100543351C true CN100543351C (en) | 2009-09-23 |
Family
ID=38743763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100052932A Expired - Fee Related CN100543351C (en) | 2006-02-17 | 2007-02-14 | The pipe joint structure of pipe joint apparatus, heat exchanger and pipeline group is installed to the method for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100543351C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011099631A (en) * | 2009-11-06 | 2011-05-19 | Denso Corp | Heat exchanger |
| FR2977932A1 (en) * | 2011-07-12 | 2013-01-18 | Valeo Systemes Thermiques | COLLECTOR BOX, HEAT EXCHANGER AND CORRESPONDING ASSEMBLY METHOD |
| WO2013020227A1 (en) * | 2011-08-05 | 2013-02-14 | Dana Canada Corporation | Side-entry fitting for heat exchanger |
| JP5445576B2 (en) * | 2011-12-28 | 2014-03-19 | ダイキン工業株式会社 | Heat exchanger and refrigeration equipment |
| JP6785408B2 (en) * | 2016-10-21 | 2020-11-18 | パナソニックＩｐマネジメント株式会社 | Heat exchanger and refrigeration system using it |
| CN109915679B (en) * | 2019-03-29 | 2023-11-21 | 倍他暖（高碑店）热能科技有限公司 | Multi-pipe quick connector and combustion furnace |
-
2007
- 2007-02-14 CN CNB2007100052932A patent/CN100543351C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101025244A (en) | 2007-08-29 |
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Granted publication date: 20090923 Termination date: 20200214 |