阅读说明：本技术 一种连接管结构及空调机 (A kind of connecting pipe structure and air conditioner ) 是由 刘伟 王程 于 2019-09-11 设计创作，主要内容包括：本发明提供了一种连接管结构及空调机,连接管结构构成为一端缩口,另一端先扩后缩结构,从而针对冷凝器出液管在技术条件无法将与冷凝器同管径的出液管缩口至与毛细管配合时,通过选择中间管径管路实现配合,将中间管路一端先扩口至冷凝器管径大小,再缩口与冷凝器配合；另一端直接旋压缩口与毛细管配合。即出液管减小管径、通过先扩后缩方式与冷凝器配合,同时解决大管径管子无法缩口至与毛细管配合问题。(The present invention provides a kind of connecting pipe structure and air conditioners, connecting pipe structure is configured to one end necking, shrinking structure after the other end first expands, to be directed to condenser outlet tube when technical conditions can not be by extremely cooperating with capillary with condenser with the outlet tube necking of caliber, by selecting intermediate caliber pipeline to realize cooperation, intermediate duct one end is first flared to condenser pipe diameter size, then necking and condenser and is cooperated；The direct spinning necking of the other end and capillary cooperate.I.e. outlet tube reduces caliber, is cooperated by first expanding retraction mode and condenser, at the same solve Large Diameter Pipeline pipe can not necking extremely with capillary matching problem.)

1. a kind of connecting pipe structure (100), including the first pipe portion (110), the second pipe portion (120), first pipe portion (110) is logical Bent portion (130) to be crossed to connect with the second pipe portion (120), first pipe portion (110) has first end (111), and described second Pipe portion (120) has the second end (121), which is characterized in that first pipe portion (110) is direct by first end (111) Connect with the outlet tube (520) of condenser (500), second pipe portion (120) by the second end (121) directly and capillary (200) it connects, wherein first pipe portion (110), the second pipe portion (120) and bent portion (130) are an integral molding structure.

2. connecting pipe structure (100) according to claim 1, which is characterized in that the first end (111) is along the company Working fluid flow direction successively includes the first extension (112), the first flaring portion (113), the first protruding portion in joint pipe structure (114) and the first tapered portion (115).

3. connecting pipe structure (100) according to claim 1, which is characterized in that the second end (121) is along the company Working fluid flow direction successively includes the second tapered portion (123) and the second extension (122) in joint pipe structure.

4. connecting pipe structure (100) according to claim 2, which is characterized in that the first extension (112) outer tube diameter It is consistent with the outlet tube (520) interior caliber, the liquid out of the first protruding portion (114) outer tube diameter and the outlet tube (520) Pipe horn mouth (521) interior caliber is consistent.

5. connecting pipe structure (100) according to claim 3, which is characterized in that the interior caliber of second tapered portion (123) It is consistent with the capillary (200) outer tube diameter.

6. connecting pipe structure (100) according to claim 1-5, which is characterized in that first pipe portion (110), the second pipe portion (120) and bent portion (130) have consistent caliber D, and the caliber D meets following formula:

Wherein, δ_nFor the wall thickness after the second end (121) necking, δ_n-1For the wall thickness before the second end (121) necking, D_{It is interior}For the second extension (122) internal diameter of the second end (121).

7. connecting pipe structure (100) according to claim 6, which is characterized in that the caliber D also meets following formula:

Wherein, ζ is limit flaring rate, D_ExpandFor the first protruding portion (114) caliber of the first end (111).

8. connecting pipe structure (100) according to claim 7, which is characterized in that after the second end (121) necking Wall thickness δ_nNo more than 1.05mm, the limit flaring rate ζ is not more than 30%.

9. connecting pipe structure (100) according to claim 8, which is characterized in that before the second end (121) necking Wall thickness δ_n-1Greater than 0.5mm and it is less than 0.9mm, the second extension (122) internal diameter D_{It is interior}Greater than 2.4mm and it is less than 2.8mm, institute State the first protruding portion (114) caliber D_ExpandGreater than 9.4mm and it is less than 9.6mm.

10. a kind of air conditioner, including condenser (500) and capillary (200), which is characterized in that the condenser (500) passes through As connecting pipe structure according to any one of claims 1 to 9 (100) are connect with capillary (200).

Technical field

The present invention relates to a kind of air conditioner connecting pipes, and in particular to a kind of condenser connecting pipe structure and air conditioner.

Background technique

For air-conditioning products, the effects of in order to generate reducing pressure by regulating flow, condenser and compressor chamber have throttling set, generally It is made of outlet tube and capillary and other pipelines, to guarantee air-tightness, the interface between pipeline all uses welded seal to connect It connects.Pick out the pipeline that liquid pipe connects capillary again for condenser, existing normal device can not by outlet tube necking to and capillary Cooperation, this brings problem to design and processing.

In response to this problem, air-conditioning producer between outlet tube and capillary generally by increasing capillary adapter tube, but this Method increases material, increases extra scalable mouth process etc., and increase a solder joint, improves what air-conditioning system leakage was blocked up Possibility, actual effect are unsatisfactory.

Summary of the invention

For solve the problems, such as it is above-mentioned at least one, a kind of connecting pipe structure and air conditioner provided by the invention.

A kind of connecting pipe structure provided by the invention, including the first pipe portion, the second pipe portion, first pipe portion pass through bend pipe Portion is connect with the second pipe portion, and first pipe portion has first end, and second pipe portion has the second end, first pipe Portion is directly connect with the outlet tube of condenser by first end, and second pipe portion is directly connected with capillary by the second end It connects, wherein first pipe portion, the second pipe portion and bent portion are an integral molding structure.To by changing copper pipe caliber and adding Work mode is integrally formed so that outlet tube is taken over corresponding capillary, is realized and is proposed effect, upgrading, drop originally.Reduce an object Material, a solder joint, improve efficiency, reduce quality risk.

Further, first end Working fluid flow direction along the connecting pipe structure successively includes the first stretching Portion, the first flaring portion, the first protruding portion and the first tapered portion.

Further, the second end Working fluid flow direction along the connecting pipe structure successively includes second tapered Portion and the second extension.

Further, the first extension outer tube diameter is consistent with caliber in the outlet tube, outside first protruding portion Caliber is consistent with caliber in the outlet tube horn mouth of the outlet tube.To when first end and condenser outlet tube horn mouth When connection, the first extension is inserted into inside condenser outlet tube, and the first flaring portion and the first protruding portion are made a slip of the tongue with outlet tube loudspeaker It is full of cooperation, wherein the first flaring portion is conducive to protruding into and wedge-shaped clamping, the first tapered portion and outlet tube horn mouth for the first protruding portion Edge forms welding space, welds on the one hand be conducive to the first tapered portion with outlet tube flared rim, on the other hand avoids Welding injures the first pipe portion tube wall, to avoid sweating heat while ensure that welding operation ease, welding airtightness and answer Damage of the power to the first pipe portion tube wall has ensured pipe fitting safety and beauty.

Further, caliber is consistent with the extracapillary caliber in second tapered portion.

Further, first pipe portion, the second pipe portion and bent portion have consistent caliber D, and the caliber D meets Following formula:

Wherein, δ_nFor the wall thickness after the second end necking, δ_n-1For the wall thickness before the second end necking, D_{It is interior}For Second extension internal diameter of the second end.

Further, the caliber D also meets following formula:

Wherein, ζ is limit flaring rate, D_ExpandFor the first protruding portion caliber of the first end.

Further, the wall thickness δ after the second end necking_nNo more than 1.05mm, the limit flaring rate ζ is not more than 30%.

Preferably, the wall thickness δ before the second end necking_n-1Greater than 0.5mm and it is less than 0.9mm, second extension Internal diameter D_{It is interior}Greater than 2.4mm and it is less than 2.8mm, the first protruding portion caliber D_ExpandGreater than 9.4mm and it is less than 9.6mm.It is thus possible to The problems such as serious calcination when pipeline being avoided to weld, part cracking, nozzle distortion, finished product rate is greatly improved, is ensured Product quality.

The present invention also provides a kind of air conditioner, including condenser and capillary, the condenser passes through above-mentioned connecting tube knot Structure is connect with capillary.

Detailed description of the invention

It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis The attached drawing of offer, which is extended, obtains other implementation attached drawings.

Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.

Fig. 1 is a kind of 100 structural schematic diagram of connecting pipe structure of the present invention；

Fig. 2 is a kind of 111 part A view structure schematic diagram of first end of connecting pipe structure 100 of the present invention；

Fig. 3 is 200 structural schematic diagram of capillary of the present invention；

Fig. 4 is 500 520 structural schematic diagram of local outlet tube of condenser of the present invention.

Description of symbols:

100- connecting pipe structure, the first pipe portion of 110-, 111- first end, the first extension of 112-, the first flaring of 113- Portion, the first protruding portion of 114-, the first tapered portion of 115-, the second pipe portion of 120-, 121- the second end, the second extension of 122-, The second tapered portion of 123-, 130- bent portion, 200- capillary, 201- capillary interface, 202- capillary extension, 203- capillary Pipe protruding portion, 204- capillary pipe portion, 500- condenser, 510- heat exchanger fin, 520- outlet tube, 521- outlet tube horn mouth.

Specific embodiment

Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.

It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.

To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.

As shown in Figure 1, a kind of connecting pipe structure 100 provided by the invention, 100 one end of connecting pipe structure and condenser 500 The outlet tube horn mouth 521 of 520 end of outlet tube be directly connected to, the capillary of connecting pipe structure 100 other end and capillary 200 Interface tube 201 is directly connected to, and working medium is reserved from condenser 500, flows through connecting pipe structure 100, flows into capillary 200.Connecting tube Structure 100 successively has integrally formed first pipe portion 110, bent portion 130 and the second pipe portion 120 along Working fluid flow direction, In, 110 end of the first pipe portion has first end 111, and first end 111 successively has integrally formed along Working fluid flow direction First extension 112, the first flaring portion 113, the first protruding portion 114 and the first tapered portion 115, the end tool of the second pipe portion 120 There is the second end 121, the second end 121 successively has integrally formed second tapered portion 123 and second along Working fluid flow direction The end of extension 122, the first extension 112 and the second extension 122 has the nozzle flowed in and out for working medium.

Wherein, first end 111 as shown in Fig. 2, 520 structure of outlet tube as shown in figure 4, when assembly connection, first end 111 the first extension 112 is inserted into inside outlet tube 520 by outlet tube horn mouth 521, the first flaring portion 113 and liquid out The necking down of pipe horn mouth 521 offsets, and so as to wedge lock, the first protruding portion 114 is inserted into outlet tube horn mouth 521, In The interference fit with 521 inner wall of outlet tube horn mouth is formed with the help of first flaring portion 113.When first end 111 is completed to insert After entering outlet tube 520, the first tapered portion 115 forms welding space with 521 edge of outlet tube horn mouth, and welding space makes connecting tube Welded seam area between 520 end of structure 100 and outlet tube is lifted away from 110 outer tube wall of the first pipe portion, has given certain welding behaviour Make space, and avoid damage of the welded stress to 110 outer tube wall of the first pipe portion, and the first tapered portion 115 and outlet tube loudspeaker The welding space that 521 edges of mouth are formed is triangle, is deeply welded conducive to welding rod, to be conducive to promote welding quality, it is ensured that gas Close property and yields, and the weld seam appearance formed is not smooth lofty, finished product rate is high and beautiful.

And the capillary 200 of 100 other end of connecting pipe structure connection is as shown in figure 3, capillary 200 has capillary interface 201, capillary extension 202, capillary protruding portion 203 and capillary pipe portion 204.Capillary 200 and connecting pipe structure 100 connect When connecing, capillary extension 202 is inserted into inside the second extension 122,122 end of capillary protruding portion 203 and the second extension It offsets, in turn, capillary protruding portion 203 and the 122 end place of offseting of the second extension is welded and fixed, to complete capillary 200 with the connection of outlet tube 520.

Specifically, an embodiment of the invention is, 520 caliber of outlet tube is Φ 9.52, and 200 caliber of capillary is Φ 2.6, consider that existing normal device can not cooperate 500 necking of outlet tube of Φ 9.52*0.7 to interior Φ 2.6 with capillary 200, And in order to save the capillary of an increased Φ 6*0.6 caliber between outlet tube 520 and capillary 200 adapter tube, setting connection 100 caliber of pipe structure is that the pipeline of D is directly connected to outlet tube 520 and capillary 200.

First pipe portion, the second pipe portion and bent portion have consistent caliber D, and the caliber D meets following formula:

Wherein, δ_nFor the wall thickness after the second end necking, δ_n-1For the wall thickness before the second end necking, D_{It is interior}For Second extension internal diameter of the second end.

Further, the caliber D also meets following formula:

Wherein, ζ is limit flaring rate, D_ExpandFor the first protruding portion caliber of the first end.

Further, the wall thickness δ after the second end necking_nNo more than 1.05mm, the limit flaring rate ζ is not more than 30%.

Preferably, the wall thickness δ before the second end necking_n-1Greater than 0.5mm and it is less than 0.9mm, second extension Internal diameter D_{It is interior}Greater than 2.4mm and it is less than 2.8mm, the first protruding portion caliber D_ExpandGreater than 9.4mm and it is less than 9.6mm.It is thus possible to The problems such as serious calcination when pipeline being avoided to weld, part cracking, nozzle distortion, finished product rate is greatly improved, is ensured Product quality.

Specifically, the material of connecting pipe structure 100 of the present invention is red copper, red copper elongation at break is 42%~55%, 10mm or less flaring rate requires≤40%, and 10mm or more flaring rate requires≤30%；For convenience of capillary weld, welded with it Pipeline wall thickness generally requires wall thickness δ_n≤1.05mm；

For the second extension 122,122 internal diameter of the second extension is 2.6mm；Consider pipeline intensity, outlet tube wall thickness 0.7mm, it is 2.6mm that Large Diameter Pipeline pipeline, which directly revolves contracting internal diameter,

Consider that practical scalable mouth measurement obtains 10mm or less caliber, when the scalable mouth of the freedom of spindle-less, scalable mouth front and rear wall The ratio between thickness is presented below as relationship:

Wherein: δ_n-1=0.7mm, D_nFor 122 pipeline diameter of the second extension, D_n=2.6+2 δ_n

Then D≤8.76mm,

For first end 111,114 outer diameter of the first protruding portion is 9.52mm, and 114 length of the first protruding portion is 21mm, the One extension, 112 outer diameter is 8.9mm；Due to being flared for cold working is long, and secondary necking is needed, therefore takes adjacent plus tight flaring Rate takes first time limit flaring rate ζ≤30%, defines by flaring rate

Then

Then

D≥7.32mm

It is preferred that caliber D is selected to be greater than the copper pipe that 7.32mm is less than between 8.76mm.

The choice of diameter specific embodiment compares as follows.

To consider to reduce solder joint, with the direct necking of Φ 9.52*0.7 caliber to interior 2.6mm, using current pyrocondensation work Skill, 1.05~1.35mm of wall thickness after necking, and there are serious burn traces, part is cracked when welding, and due to 2.6 capillary of Φ Wall thickness only 0.65mm, wall thickness variation is excessive, and when welding is not easy to control, easily burn-through capillary.

In turn, consider to reduce caliber, by current universal air conditioner caliber, select Φ 7*0.6mm caliber to make, as a result, it has been found that necking Internal diameter 2.6mm no problem, but it is flared outer diameter 9.52mm, then go wrong when necking outer diameter 8.9mm, Φ 7mm caliber expands 21mm long Will cause nozzle distortion when necking, beat and lack, bulge, cracking, then necking it is outer 8.9 when, presentation torsional deformation substantially.

The connecting pipe structure 100 for verifying Φ 7.94*0.7mm, in the second extension of connecting pipe structure 122 of D=7.94mm Diameter is 2.6mm, and using pyrocondensation technique, necking 0.90~0.95mm of wall thickness meets and the requirement of 2.6mm capillary weld, practical weldering Connect no problem；The connecting pipe structure 100 of Φ 7.94*0.7mm expands outer diameter 9.52mm no problem, then contracting outer diameter 8.9mm, exists Slight bulge, after adjusting distributive value and clamp distance, product inspection no problem.

To which each embodiment comparison result is as follows:

It is thus preferable to which Φ 9.52*0.7 caliber outlet tube to be changed to the connecting pipe structure 100 of Φ 7.94*0.7；Use Φ It is Φ 9.52, then necking to Φ 8.9 that 7.94 connecting pipe structure, 100 one end, which is expanded,；The other end directlys adopt spinning necking mode necking To interior Φ 2.6 to realize that pipeline is integrally formed.

It is thus possible to which the problems such as serious calcination, part when pipeline being avoided to weld are cracked, nozzle distortion, greatlys improve Finished product rate, has ensured product quality.

The present invention also provides a kind of air conditioner, including condenser and capillary, the condenser passes through above-mentioned connecting tube knot Structure is connect with capillary.

Although above having used general explanation and specific embodiment, the present invention is described in detail, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.