CN206531323U - A kind of improved compressor liquid storage device - Google Patents

Abstract

The utility model is related to a kind of improved compressor liquid storage device, and it includes housing, and housing two ends are neck, and upper and lower connecting tube includes resistance welding pipeline section, and the resistance welding pipeline section forms the projection of upper and lower two layers of folding with the position that casing neck is welded to connect；The raised side is weld part, and relative opposite side is forced section, and the forced section has support plane；Start at the entirety that permeated to 0.5mm in welding rear projection gap angle summit of upper and lower two layers of formation at least before welding.After the utility model is by improvement, upper and lower connecting tube can be welded using electric resistance welding with housing, raised weld part is in welding process because compression can be to the intraoral sliding of neck end, molten metal penetrates into, it is merged with casing neck correspondence position, the sealing of weld seam is ensured that, even if shortening neck length, product can also reach use requirement.

Description

A kind of improved compressor liquid storage device

Technical field

The utility model is related to field of air conditioning, particularly a kind of air condition compressor reservoir.

Background technology

The making of existing rotary extrusion type spinning air condition compressor reservoir housing is generally：First bent, led to by iron or stainless steel plate Straight seam welding formation cylindrical shape (stack shell has a straight bead) is crossed, then the port of upper and lower end is elongated by spinning process Narrow, the neck matched with air inlet copper pipe, exhaust copper pipe pipe diameter size is formed, in order to which follow-up is welded to connect.

However, housing is after spinning process, the part that straight bead is located at casing neck can be distorted deformation, exist The risk of invisible crack increased dramatically, and neck length is longer, then the probability for invisible crack occur and then leaking is bigger.But, mesh Preceding use copper pipe is welded with ferrous casings by flame welding, to ensure the sealing of weld seam, it is desirable to weldering is deep be generally more than 5mm compared with To insure, so being difficult to shorten neck length, the risk of reduction leakage.Moreover, by the thickness of spinning process back casing neck Greatly increase, can be brought rapidly up during in order to weld, generally require and neck inwall is circumferentially cut into a part, so that reducing needs The iron material quality to be heated, but the difficulty and complexity that so increase is processed again.

For the air condition compressor reservoir housing of triad, including upper and lower end cap and middle cylinder.Due to upper and lower end The port of lid constitutes neck by drawing high shaping, and the production technology limits the height of neck, is typically only below 5mm, and such as Preceding described, current copper pipe is generally more than 5mm with ferrous casings by the way that flame welding welding requirements weldering is deep, therefore when the too short meeting of neck Cause soldering joint filling depth not enough, be also easily caused the deep deficiency of weldering and reveal.Asked for diad structure there is also same Topic.

The content of the invention

To solve the above problems, the purpose of this utility model is to provide a kind of improved compressor liquid storage device, it passes through knot The change of structure, electric resistance welding technique can be used by making reservoir, be processed simple to operation.

What the purpose of this utility model was realized in：A kind of improved compressor liquid storage device, it includes iron or stainless steel The housing of material, housing two ends are the neck for being welded to connect with upper and lower connecting tube, it is characterised in that：Described upper and lower company Adapter includes for carrying out the resistance welding pipeline section that electric resistance welding is connected, the resistance welding pipeline section and housing with casing neck The position that neck is welded to connect makes tube wall circumferentially protrude from inside to outside by extruding, is formed by the convex of upper and lower two layers folding Rise；The raised side is the weld part with the welding fusion of casing neck port resistive, and relative opposite side is for powering Welding resistance applies stressed forced section, and the forced section has support plane；It is described raised at least from upper and lower two layers before welding after welding Start at the entirety that permeated to 0.5mm in the gap angle summit of formation.

Described upper and lower connecting tube before welding when, its respective weld part, forced section respectively pass through arc transition or tiltedly Face is transitioned into the respective outer wall of upper and lower connecting tube.

Described upper and lower connecting tube before welding when, its respective weld part, forced section are arrived by arc transition respectively The upper and lower respective outer wall of connecting tube, and weld part arc radius is more than forced section arc radius；Or, respective weld part, by Power portion is by chamfered transition to the respective outer wall of upper and lower connecting tube, and weld part inclined-plane and the angle of upper and lower connection pipe outer wall are big In forced section inclined-plane and the angle of upper and lower connection pipe outer wall.

Described raised height is 1.0~2.5 times of upper connecting tube or lower connecting tube pipe thickness.

Described upper and lower connecting tube is the multiple tube for including iron pipe section and copper pipe section, and wherein iron pipe section is resistance welding Pipeline section；Or to include the multiple tube of stainless steel pipeline section and copper pipe section (or having layers of copper), wherein stainless steel pipeline section is electric resistance welding Nozzle belt.

The port of the neck has inside chamfering structure.

The angle summit in the gap of raised upper and lower two layers of the formation is started to 1mm, and this is upper and lower two layers Spacing maximum be not more than 2mm.

The height of the casing neck is 0.5-5 millimeters.

The housing is diad housing, triad housing or spinning sandwich type element.

After the utility model is by improvement, upper and lower connecting tube can be welded using electric resistance welding with housing, raised welding Portion can be merged, so that really due to being pressurized in welding process to the intraoral sliding of neck end with casing neck correspondence position The sealing of weld seam is protected, even if shortening neck length, product can also reach use requirement so that will to the height of neck of product Ask and be greatly reduced, and the raised levels fusion of itself can improve the intensity of the position, in addition for spinning sandwich type element, The weld seam of casing neck itself can melt cooling again by electric resistance welding, prevent the hidden danger of invisible crack.

Brief description of the drawings

Fig. 1 is the profile before welding of the present utility model；

Fig. 2 is Fig. 1 A portions partial enlarged drawing；

Fig. 3 is the partial enlarged drawing in A portions after welding；

Fig. 4 is the state diagram that A portions carry out electric resistance welding.

Embodiment

As shown in figure 1, the utility model is a kind of improved liquid receiver for compressor, include the shell of iron or stainless steel Body 1, housing 1 can be diad housing, triad housing or spinning sandwich type element.The port of the upper/lower terminal of housing 1, which is elongated, receives It is narrow, the neck 11,12 matched with upper and lower connecting tube 2,3 pipe diameter sizes is formed, in order to which follow-up is welded to connect.

Height h1, h2 of the casing neck 11,12 can be 0.5-5 millimeters.In the technical program, without such as traditional Technique be more than 5 millimeters weldering it is deep can ensure the sealing of product, therefore to casing neck 11,12 height it is less demanding.It is excellent Choosing, the port of neck 11,12 has inside chamfering structure, in favor of following raised 21,31 inwardly slidings.

Described upper and lower connecting tube 2,3 includes for carrying out the resistance that electric resistance welding is connected with casing neck 11,12 Pipeline section is welded, the position that the resistance welding pipeline section is welded to connect with casing neck 11,12 makes tube wall circumferential from introversion by extruding Outer protrusion (upper and lower side of upper and lower connecting tube 2,3 is applied into pressure simultaneously, and in a mold between reserve the portion of giving up the throne of dot shape, When extruding up and down, upper and lower connecting tube 2, the tube wall of 3 correspondence positions will protrude to the portion of giving up the throne and deform), formed by upper and lower two layers The projection 21,31 folded, the side of the projection 21,31 is can be with casing neck 11, the weld part of 12 ports welding fusion 211st, 311, relative opposite side is to apply stressed forced section 212,312 for welding resistance of powering, and forced section 212,312, which has, to be held Plane is held in the palm, as shown in Figure 2.The structure of the projection 21,31 causes housing 1 and the welding of upper and lower connecting tube 2,3 to be able to use resistance Weldering, can make the weld seam of casing neck itself can melt cooling again in the welding process of electric resistance welding, eliminate invisible crack.It is convex The height h3 for playing 21,31 is more than 0,1.0~2.5 times of preferably upper connecting tube 2 or the pipe thickness of lower connecting tube 3.

As shown in figure 3, welding after described raised 21,31 at least from welding before it is upper and lower two layers formation gap angle top Point start to 0.5mm permeate it is overall (from the angle summit in the gap of upper and lower two layers formation to convex before merging The distance for playing 21,31 summit is substantially equal to pipe thickness, from the angle summit in the gap of upper and lower two layers formation after fusion To the distance on the summit of projection 21,31, at least 0.5mm bigger than pipe thickness).Because projection 21,31 is by being extruded from, And the angle between two layers is the acute angle of very little up and down, therefore the intensity of the position can be deteriorated, and after electric resistance welding, projection 21, At least partly merge integral between upper and lower two layers of 31, the intensity of the position can be greatly improved.It is preferred that, it is described convex The angle summit in the gap of upper and lower two layers of the formation risen is started to 1mm, and upper and lower two layers of the spacing is maximum less In 2mm, so that the gap can be melted metal in the range of aforementioned claim and permeate entirety during welding.

As shown in Figure 2, it is preferred that upper and lower connecting tube 2,3 before welding when, its respective weld part 211,311, stress Portion 212,312 passes through arc transition or chamfered transition to upper and lower connecting tube 2,3 respective outer walls respectively.

It is furthermore preferred that described upper and lower connecting tube 2,3 before welding when, its respective weld part 211,311, forced section 212nd, 312 pass through arc transition to upper and lower connecting tube 2,3 respective outer walls, and the arc radius r1 of weld part 211,311 respectively More than the arc radius r2 of forced section 212,312；Or, respective weld part 211,311, forced section 212,312 passes through inclined-plane It is transitioned into upper and lower connecting tube 2,3 respective outer walls, and weld part 211,311 inclined-planes and upper and lower connecting tube 2, the angle of 3 outer walls More than forced section 212,312 inclined-planes and upper and lower connecting tube 2, the angle of 3 outer walls.In this kind of structure, the welding of projection 21,31 Portion 211,311 is easier to slide into neck 11,12 ports in welding process due to being pressurized.

Described upper and lower connecting tube 2,3 is preferably the multiple tube for including iron pipe section and copper pipe section, wherein iron pipe Duan Wei electricity Welding resistance nozzle belt, copper pipe section is the overall pipeline section being made up of copper metal or the iron pipe covered with layers of copper；Or to include not The multiple tube of lengths of steel pipes of becoming rusty and copper pipe section, wherein stainless steel pipeline section are resistance welding pipeline section, and copper pipe section is to be overall by copper metal system Into pipeline section or iron pipe covered with layers of copper.Iron pipe section or stainless steel pipeline section and housing are same metal, beneficial to welding, copper pipe Duan Ze is beneficial to other copper pipelines are welded to connect with compressor.The preparation technology of multiple tube is not limited, by existing process.

Embodiment 1

As shown in figure 1, the present embodiment is a kind of improved liquid receiver for compressor, including iron material mass shell body 1, in this implementation It is triad in example, the neck 11,12 for narrowing and being formed is elongated in the port of the upper/lower terminal of housing 1.The height of casing neck 11,12 H1, h2 are about 2.5 millimeters.

Upper and lower connecting tube 2,3 is the multiple tube for including iron pipe section and copper pipe section, and wherein iron pipe section is electrical resistance welding tube Section.In the present embodiment, it by iron pipe is base material that multiple tube, which is, and the pipeline section of wherein one end is compounded with layers of copper formation copper pipe section.Resistance The position that welding pipeline section is welded to connect with casing neck 11,12 circumferentially makes tube wall circumferentially protrude from inside to outside by extruding, is formed The projection 21,31 of upper and lower two layers of folding (height h3 is about 2mm).The side of the projection 21,31 is can be with casing neck 11,12 The weld part 211,311 of port welding fusion, relative opposite side be for welding resistance of powering apply stressed forced section 212, 312.Exemplified by above connecting tube 2, as shown in Fig. 2 upper connecting tube 2 before welding when, its weld part 211, forced section 212 lead to respectively Arc transition is crossed to the outer wall of upper connecting tube 2, and the arc radius r1 of weld part 211 is more than the arc radius r2 of forced section 212. For example in the present embodiment, r1 is about 2.5mm, and r2 is about 1mm.The angle summit in the gap of upper and lower two layers of the formation of projection 21 Start to 1mm, upper and lower two layers of spacing maximum is not more than 2mm.

As shown in figure 4, propping up the forced section 212 of projection 21 from top to bottom by Top electrode pressing element 4 during welding, pass through lower electricity Extreme pressure tool 5 props up the upper end cover of housing 1 from the bottom up, so that the weld part 211 of projection 21 be compressed with the upper port of housing 1, leads to Electricity carries out electric resistance welding.

As shown in figure 3, the weld part 211 of projection 21 is sliding in the port of neck 11 due to being pressed in welding process after welding Move, two layers of foldable structure of raised 21 script is most of to have fused into an entirety, and weld part because power acts on the electric discharge that can fit 211 are fused into one with the electric discharge that can also fit of the port of neck 11, so as to realize the requirement being tightly connected.

Claims (9)

1. a kind of improved compressor liquid storage device, it includes the housing of iron or stainless steel, housing two ends be for it is upper and lower The neck that connecting tube is welded to connect, it is characterised in that：Described upper and lower connecting tube includes for carrying out resistance with casing neck The resistance welding pipeline section being welded to connect, the position that the resistance welding pipeline section is welded to connect with casing neck makes tube wall by extruding It is circumferential to protrude from inside to outside, formed by the projection of upper and lower two layers folding；The raised side is and casing neck port electricity The weld part of welding resistance welding fusion, relative opposite side is applies stressed forced section for welding resistance of powering, and the forced section has Support plane；The gap angle summit of raised two layers of the formation upper and lower at least before welding is started to 0.5mm model after welding Permeate entirety in enclosing.

2. improved compressor liquid storage device according to claim 1, it is characterised in that：Described upper and lower connecting tube is in weldering When connecing preceding, its respective weld part, forced section are respective outer to upper and lower connecting tube by arc transition or chamfered transition respectively Wall.

3. improved compressor liquid storage device according to claim 2, it is characterised in that：Described upper and lower connecting tube is in weldering When connecing preceding, its respective weld part, forced section are respectively by arc transition to the respective outer wall of upper and lower connecting tube, and weld part Arc radius is more than forced section arc radius；Or, respective weld part, forced section pass through chamfered transition to upper and lower connecting tube Respective outer wall, and weld part inclined-plane and the angle of upper and lower connection pipe outer wall are more than forced section inclined-plane and upper and lower connection pipe outer wall Angle.

4. improved compressor liquid storage device according to claim 1, it is characterised in that：Described raised height is upper company Adapter or 1.0~2.5 times of lower connecting tube pipe thickness.

5. improved compressor liquid storage device according to claim 1, it is characterised in that：Described upper and lower connecting tube is bag Multiple tube containing iron pipe section and copper pipe section, wherein iron pipe section are resistance welding pipeline section；Or for include stainless steel pipeline section and The multiple tube of copper pipe section, wherein stainless steel pipeline section are resistance welding pipeline section.

6. improved compressor liquid storage device according to claim 1, it is characterised in that：The port of the neck has inside Chamfering structure.

7. improved compressor liquid storage device according to claim 1, it is characterised in that：Raised upper and lower two layers of shape Into the angle summit in gap start to 1mm, upper and lower two layers of spacing maximum is not more than 2mm.

8. improved compressor liquid storage device according to claim 1, it is characterised in that：The height of the casing neck is 0.5-5 millimeters.

9. the improved compressor liquid storage device according to claim 1-8 any claims, it is characterised in that：The housing For diad housing, triad housing or spinning sandwich type element.