CN102853108B - Brazing structure body and brazing method of piping components - Google Patents
Brazing structure body and brazing method of piping components Download PDFInfo
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- CN102853108B CN102853108B CN201210139213.3A CN201210139213A CN102853108B CN 102853108 B CN102853108 B CN 102853108B CN 201210139213 A CN201210139213 A CN 201210139213A CN 102853108 B CN102853108 B CN 102853108B
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- 238000005219 brazing Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 22
- 239000000853 adhesive Substances 0.000 claims abstract description 39
- 230000001070 adhesive effect Effects 0.000 claims abstract description 37
- 229910000679 solder Inorganic materials 0.000 claims description 119
- 238000005476 soldering Methods 0.000 claims description 50
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 16
- 238000013459 approach Methods 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 7
- 230000004043 responsiveness Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000928 Yellow copper Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Abstract
The invention provides a brazing structure body having a plurality of piping component brazed on an adhesive body with good accuracy and in a mutually close state. The brazing structure body is provided with piping components (11, 12...) and the adhesive body having a plurality of openings formed in an adhering face (20a). And the piping components (11, 12...) are brazed on the adhering face (20a) of the adhesive body (20) in a manner of communicating with the corresponding opening (21a, 22a...). The piping components are brazed on the adhering face (20a) through brazing material (11a, 12a) arranged on peripheries of the openings. A step (24) is formed between two openings which are at least closest to each other among the openings (21a, 22a...). An arbitrary one of the two openings is formed at a lower position than the other one.
Description
Technical field
The present invention relates to brazed structure that multiple tube parts solderings form on adherend and the method for welding of tube parts, in detail, relate to the brazed structure of the structure that is suitable for a part that forms control valve unit and be suitable for the method for welding of a part that forms control valve unit.
Background technique
In the pet-valve device using at the refrigerant circulation of aircondition, refrigerator, vending machine etc., valve body and pipe joint are connected and fixed by soldering.For example, following electromagnetic type four-way valve being disclosed in patent documentation 1: on the valve seat fixing part of valve body, fixes three pipe joints by brazing.In addition, following electrodynamic type changing valve being disclosed in patent documentation 2: in the bottom cover members of valve body, is fixed with three pipe joints by brazing.In addition, at patent documentation 3, following valve structure is disclosed: in the imperial valve of brazed pipe joint forms on valve body flow system, the solder that fusing can not occur flows into the inside of valve body and damages the situation of the fluid characteristics of valve body.
In the method for welding of the pipe joint of these control valve units in the past, describe simply as basis taking Figure 10.As shown in figure 10, on the adhesive face 120a of valve base part 120, be connected and fixed two pipe joints 111 and 112, under the state that pipe joint 111 and 112 is inserted in the opening 121 and 122 being formed on adhesive face 120a, the peripheral portion of the outer circumferential face to pipe joint 111 and 112 and opening 121 and 122 carries out soldering.
Have following method as method for welding now: the joint to pipe joint 111,112 and valve base part 120 heats in advance, by the solder that adds melting to this joint for line machine etc. carry out soldering, be called the so-called method for welding that now adds scolder soldering; At the pre-configured solder of joint of pipe joint 111,112 and valve base part 120, by this solder is heated carry out soldering, be called the so-called method that adds in advance scolder soldering.
Prior art document
Patent documentation 1: Japanese Patent Publication 7-20475 communique
Patent documentation 2: TOHKEMY 2004-263726 communique
Patent documentation 3: TOHKEMY 2003-161550 communique
But, in recent years, in the control valve unit such as three-way valve or four-way valve using at the refrigerant circulation of aircondition, refrigerator etc., require the further miniaturization of control valve unit.In the case of by control valve unit miniaturization three-way valve or four-way valve etc., that there are multiple valve ports (opening), for example, in Figure 10, consider to be formed at by shortening the separating distance C ' of the opening 121,122 on adhesive face 120a, by valve base part 120 miniaturizations, thereby by control valve unit integral miniaturization.In addition, if the shortening of separating distance C ' also shortens at the slide sliding distance of mobile slide valve (not shown) of valve seat surface 120b, think also favourable aspect the reduction of the wearing and tearing of slide-valve main body and valve responsiveness.
But, if shorten separating distance C ', be difficult to pipe joint 111,112 precision solderings well on the adhesive face 120a of valve base part 120.For example, now add in the situation of solder brazing, owing to being slightly offset for the relative position of line machine and valve base part 120 and pipe joint 111,112, at separating distance C hour, there is following problem: when part between brazed pipe joint 111 and 112, because skew can not be supplied to solder suitable position, or contact with pipe joint 111,112 for line machine, the quality of soldering is unstable.
In addition, in the situation that adding in advance scolder soldering, if shorten separating distance C ', can not guarantee to configure the space of solder between pipe joint 111 and 112.In addition, even if can barely configure solder, also can cause solder melting time, the solder of pipe joint 111 contacts with the solder of pipe joint 112, and solder one side that other solders are first melted attracts (draw I and post せ Ru), therefore has the bad problem of soldering that occurs.
So, the present inventor, propose the scheme of solder 110a that can the elliptical shape of armouring on the pipe joint 111,112 of two, and thought by configuring as shown in Figure 11 (a), shorten separating distance C '.
But, in the solder 110a of this elliptical shape, the dimensional accuracy that the making of solder 110a is had relatively high expectations, if for example solder 110a is little, can not armouring on pipe joint 111,112, otherwise and, if solder 110a is large,, as shown in a ' portion of Figure 11 (b), can produce pipe joint and the discontiguous bad connection of solder 110a portion.If there is this bad connection portion, can not carry out well soldering, can there is soldering bad.And solder 110a is attracted to a side of first fusing, causes that soldering occurs bad.
In addition, the present inventor has proposed the solder 111a of C shape ring-type, the scheme of 112a, thinks as shown in Figure 12 (a), is positioned the side between pipe joint 111,112 by the opening portion that makes C shape ring, thereby shortens separating distance C.
But in solder 111a, the 112a of this C shape ring-type, the allocation position of solder 111a, 112a is very important, there is the poor problem of assembling operation.For example, assembling pipe joint at 111,112 o'clock, if solder 111a, 112a rotation,, as shown in b ' portion of Figure 12 (b), solder 111a contacts with 112a, and other solders are attracted to solder one side of first fusing, therefore can soldering occur bad.
Summary of the invention
The present invention is in view of this problem in the past and the invention proposing, object is to provide a kind of brazed structure, this brazed structure is that the multiple tube partss of soldering form on adherend, multiple tube partss under state close to each other precision soldering well on adherend.
In addition, the object of the invention is to, a kind of method for welding of tube parts is provided, the method can closely be carried out the good soldering of precision by multiple tube partss and adherend.
The present invention is the invention in order to realize problem in conventional art as described above and object and complete, brazed structure of the present invention possesses multiple tube partss, with the adherend that forms multiple openings on adhesive face, and by each tube parts of above-mentioned multiple tube partss with respectively with above-mentioned multiple openings in the mode soldering of an open communication on the adhesive face of above-mentioned adherend, this brazed structure is characterised in that, this brazed structure forms a part for control valve unit, each tube parts of above-mentioned multiple tube partss by the solder brazing of peripheral portion that is configured in above-mentioned opening on above-mentioned adhesive face, in above-mentioned multiple openings, between two openings that at least mutually approach the most, form ladder, any of these two openings is formed at than on another low position.
According to this brazed structure of the present invention, between two openings that in multiple openings, at least mutually approach the most, form ladder, any of these two openings is formed at than on another low position, therefore can prevent that the solder of the peripheral portion that is configured in these two openings from contacting with each other.Thereby can make the brazed structure of tube parts precision soldering well.
In foregoing invention, the separating distance when by the overlooking of above-mentioned two openings that mutually approach is the most made as C, width during by the overlooking of solders in above-mentioned two openings that mutually approach the most, that be configured in the peripheral portion of an opening is made as d
1, by be configured in another opening the overlooking of solder of peripheral portion time width be made as d
2time, expect to meet following relation:
D
1>=d
2situation: d
1< C < d
1+ d
2
D
1< d
2situation: d
2< C < d
1+ d
2.
If this structure, the summation (d of the width of separating distance C when the overlooking of two openings during than the overlooking of two solders
1+ d
2) also little, can be by control valve unit miniaturization.
In addition, in foregoing invention, in above-mentioned two openings that mutually approach the most, an above-mentioned opening is positioned at the downside of ladder, and the height of solder of the peripheral portion that is disposed at this opening is being made as to h
1, when the height of above-mentioned ladder is made as to H, expect to meet following relation:
h
1＜H。
If this structure, the height H of ladder is than the height h of solder of downside that is positioned at ladder
1greatly, therefore, can prevent reliably that the solder of the downside that is positioned at ladder from contacting with the solder that is positioned at upside.
If utilize brazed structure of the present invention to form a part for control valve unit, multiple tube partss (for example pipe joint) are for example, at adherend (valve base part) upper with the state precision soldering well approaching, therefore can be by control valve unit miniaturization.In addition, because the sliding distance of sliding valve core also shortens, the wearing and tearing that therefore can make slide-valve main body reduce, and also good control valve unit of valve responsiveness.
In addition, the method for welding of the tube parts of formation control valve unit of the present invention, be with each tube parts of multiple tube partss respectively with the multiple openings that are formed on the adhesive face of adherend in the mode of an open communication, by the method for welding of the tube parts on the adhesive face at above-mentioned adherend in above-mentioned multiple tube parts solderings, it is characterized in that thering is following operation: the operation of preparing to form between two openings that approach the most in above-mentioned multiple openings, at least mutual stepped adherend; The solder armouring operation of the each tube parts armouring solder to above-mentioned multiple tube partss; Make the solder arrangement step of the peripheral portion butt of the solder of armouring on above-mentioned tube parts and above-mentioned opening; And make above-mentioned solder melting, the soldering operation by above-mentioned multiple tube parts solderings on the adhesive face of above-mentioned adherend.
According to the method for welding of the tube parts of this formation control valve unit of the present invention, the solder that is configured in the peripheral portion of two openings can configure discretely at the upside of ladder and downside, therefore the solder that is configured in the peripheral portion of two openings can not contact each other, can with the closely multiple tube partss of precision soldering well of adherend.
In addition, because the peripheral portion butt of the solder that makes armouring on tube parts and opening configures solder, therefore can precision well and simply configure tube parts and solder.
Effect of the present invention is as follows.
According to the present invention, due in the multiple openings on the adhesive face that is formed at adherend, at least mutually between two openings approaching the most, be formed with ladder, therefore can prevent that the solder of the peripheral portion that is configured in these two openings from contacting with each other.Thereby, when soldering, can not follow the soldering of contact of solder bad, therefore can provide tube parts by the brazed structure of a part for the formation control valve unit of the good soldering of precision.
In addition, according to the present invention, for example, because multiple tube partss (pipe joint) are for example, at adherend (valve base part) upper with the state precision soldering well approaching, therefore can be by control valve unit miniaturization.In addition, because the sliding distance of sliding valve core also shortens, the wearing and tearing that therefore can make slide-valve main body reduce and also good control valve unit of valve responsiveness.
In addition, according to the present invention, prepare at least between two openings that mutually approach the most, to form stepped adherend, and on this adherend soldering tube parts, therefore the solder of the peripheral portion that is configured in two openings can be configured discretely at upside and the downside of ladder.Therefore, can provide the solder of the peripheral portion that is configured in two openings can not contact each other, and multiple tube partss and adherend closely can be carried out to the method for welding of the tube parts of soldering with good accuracy.
Brief description of the drawings
Fig. 1 is the stereogram that represents brazed structure of the present invention.
Fig. 2 is plan view and the sectional view that represents brazed structure of the present invention.
Fig. 3 is the stereogram that represents the brazed structure of comparative example.
Fig. 4 is the figure that represents an example of solder of the present invention.
Fig. 5 is the figure that represents the variation of adherend of the present invention (valve base part).
Fig. 6 is the stereogram that represents the brazed structure of the second mode of execution of the present invention.
Fig. 7 is plan view and the sectional view that represents the brazed structure of the second mode of execution of the present invention.
Fig. 8 is stereogram and the plan view that represents the brazed structure of the 3rd mode of execution of the present invention.
Fig. 9 is stereogram and the plan view that represents the brazed structure of comparative example.
Figure 10 is the figure for method for welding is in the past described.
Figure 11 is the figure of an example for solder is in the past described.
Figure 12 is applicable to the figure of an example of explanation solder in the past.
In figure:
1a, 1b, 1c-brazed structure, 11, 12, 13-pipe joint (tube parts), 11a, 12a, 13a-solder, 20-valve base part (adherend), 20a-adhesive face, 20b-valve seat surface, 21, 22, 23-valve opening, 21a, 22a, 23a-opening, 21b, 22b, 23b-opening, 21c, 22c-major diameter portion, 21d, 22d-minor diameter, 24-ladder, 24a-stepped part, 32-valve casing, 34-valve chamber, 111, 112-pipe joint, 110a, 111a, 112a-solder, 120-valve base part, 120a-adhesive face, 120b-valve seat surface, 121, 122-opening.
Embodiment
Based on accompanying drawing, embodiments of the present invention are described in more detail below.
But scope of the present invention is not limited to following mode of execution.The size of the component parts that following mode of execution is recorded, material, shape, its relatively configuration etc. as long as no special record, just not only by circumscription of the present invention in this, be only simple explanation.
Brazed structure of the present invention is particularly suitable for the structure as a part for the control valve units such as formation three-way valve or four-way valve.Therefore in the following description, the occasion that taking brazed structure of the present invention is following brazed structure describes as example,, the brazed structure of invention be multiple pipe joints with valve base part state close to each other under soldering, form the brazed structure of a part for control valve unit.
< the first mode of execution >
Fig. 1 is the stereogram that represents the brazed structure of the first mode of execution of the present invention.In addition, Fig. 2 is plan view and the sectional view that represents the brazed structure of the first mode of execution of the present invention, and Fig. 2 (a) is plan view, and Fig. 2 (b) is the sectional view of A-A line.
As shown in Figure 1, the brazed structure 1a of present embodiment possesses two pipe joints 11,12 and columned valve base part 20, and pipe joint 11,12 utilizes brazing and is fixed on as the adhesive face 20a of the valve base part 20 of adherend and forms.
On valve base part 20, be formed with 21,22, two valve openings 21,22 of two valve openings and axially penetrate into valve seat surface 20b from adhesive face 20a along it.And, on adhesive face 20a, form two opening 21a and opening 22a, and on valve seat surface 20b, be formed with two opening 21b and 22b.
In addition, the aperture of valve opening 21,22 changes halfway, and adhesive face 20a side becomes the 21c of major diameter portion, 21c, and valve seat surface 20b side becomes minor diameter 21d, 22d.In addition, it is identical or slightly larger than it with the external diameter of pipe joint 11 that the internal diameter of the 21b of major diameter portion of valve opening 21 is formed as, so that pipe joint 11 can insert.In addition, the minor diameter 21c of valve opening 21 is formed as the diameter roughly the same with the internal diameter of pipe joint 11.
Equally, it is identical or slightly larger than it with the external diameter of pipe joint 12 that the 22c of major diameter portion of valve opening 22 is formed as, so that pipe joint 12 can insert.In addition, the minor diameter 22c of valve opening 22 is formed as the diameter roughly the same with the internal diameter of pipe joint 12.
In addition, as shown in Fig. 1 and Fig. 2 (b), near the peripheral portion of opening 21a, be formed with ladder 24, and be formed with the low stepped part 24a of other parts of specific adhesion face 20a., opening 21a is formed at the position of the downside of ladder 24, opening 22a is formed at the position of the upside of ladder 24.
As the material of valve base part 20, can suitably use copper, brass, stainless steel etc.In addition, this valve base part 20 by for example to parts cylindraceous bore a hole form valve opening 21,22, and utilize cutting form ladder 24 make.
In addition, as shown in Figure 1, there are circular solder (ろ う material) 11a, 12a at the periphery armouring of pipe joint 11,12.In addition, the material of pipe joint 11,12 is same with above-mentioned valve base part 20, can suitably use copper, brass, stainless steel etc.In addition, solder 11a, 12a are formed than valve base part 20 and pipe joint 11,12 low materials by fusing point, can use such as copper solder, silver solder, brazing solder (yellow Copper ろ う), P-Cu Brazing Materials (り ん Copper ろ う) etc.
The pipe joint 11,12 of the above-mentioned solder 11a of armouring, 12a inserts valve opening 21,22 from opening 21a, the 21b of valve base part 20.And the front end of pipe joint 11 is inserted into the position with the minor diameter 21d butt of valve opening 21, the solder 11a of armouring on pipe joint 11 and the stepped part 24a butt of adhesive face 20a.In addition, if the front end of pipe joint 12 is inserted into and the position of the minor diameter 22d butt of valve opening 22, solder 12a and the adhesive face 20a butt of armouring on pipe joint 12.And as shown in Fig. 2 (b), solder 11a, 12a are configured in the peripheral portion of opening 21a, 22a.
And, under the state shown in Fig. 2 (b), by solder 11a, 12a are heated and make its melting, thereby under the state being communicated with opening 21a, opening 22a at pipe joint 11,12, pipe joint 11,12 solderings are on the adhesive face 20a of valve base part 20.
The brazed structure 1a making so as shown in Figures 1 and 2, is formed with ladder 24 between opening 21a and opening 22a, and opening 21a is formed at respect on the lower position of opening 21b, therefore the height of solder 11a and solder 12a is staggered and is configured.Thus, even opening 21a and opening 22a are formed on the position being close while overlooking, also can prevent that solder 11a, the 12a of the peripheral portion that is configured in these two opening 21a, 22a is in contact with one another.
Thereby in the time making solder melting, solder one side that other solder can first not melted attracts, and can not soldering occur bad.Therefore, can be by pipe joint 11,12 precision solderings well on the mating face 20a of valve base part 20.
With respect to this, for example as shown in Figure 3, between opening 21a ' and opening 22a ', do not form in the brazed structure 1a ' of comparative example of ladder, if opening 21a and opening 22a are formed on the position being close while overlooking, as shown in Fig. 3 (b), solder 11a' contacts with 12b', in the time of the soldering of a portion, soldering occurs bad.In addition, a side solder (for example solder 12a') leaves adhesive face 20a', even if solder 12a' melting, in b portion, causes with holding tube joint 12 and the loose state of adhesive face 20a and carries out soldering.In addition, because solder 12a' does not contact with valve seat, therefore there is the situation of heat conduction deterioration, not melting.
In addition, the brazed structure 1a of present embodiment is configured to, and the width when by the overlooking of solder 11a is made as d
1, the width during by the overlooking of solder 12a is made as d
2situation under, separating distance C when the overlooking of opening 21a, 21b meets following relation.
D
1>=d
2situation: d
1< C≤d
1+ d
2
D
1< d
2situation: d
2< C≤d
1+ d
2
, between opening 21a and opening 22a, form ladder 24, the height of solder 11a and 12a can be staggered and configures, the width summation therefore can make separating distance C than the overlooking of two solder 11a, 12a time is little.Thus, can reduce adhesive face 20a, realize brazed structure 1a miniaturization.In addition, in order to configure solder between pipe joint 11 and 12, the width d must make separating distance C be greater than overlooking of two solder 11a, 11b time
1, d
2a large side.
In addition, the brazed structure 1a of present embodiment is configured to, and the height of ladder 24 is being made as to H, and the height of solder 11a is made as to h
1situation under, meet following relation.
h
1＜H
If the height H of ladder 24 is formed as being greater than the height h of solder 11a
1, can prevent reliably that the solder 11a of the downside that is positioned at ladder 24 from contacting with the solder 12a of the upside that is positioned at ladder 24, can improve the precision of soldering, thereby comparatively desirable.
In addition, in the present invention, the manufacture method of solder 11a, 12a is not particularly limited, can be by for example the solder of long wire being wound into helical, and by the amount of its each circle cut off to form.The solder 11a manufacturing so as shown in Figure 4, becomes distolateral and another distolateral state in short transverse skew of solder 11a, and the whole height maximum of the solder 11a of ring-type is about 2h
1.
Therefore, by the height H of above-mentioned ladder 24 is configured to and meets 2h
1the relation of < H, thus even if solder 11a one distolateral distolateral in short transverse skew with another also can prevent that solder 11a from contacting with 12a, can further improve the precision of soldering reliably.
In addition,, in brazed structure 1a of the present invention, the plane shape that is formed at the ladder 24 on adhesive face 20a is not limited to above-mentioned mode of execution.In the present invention, between opening 21a and 22a, form ladder 24, as long as opening 21a is formed at the position lower than opening 22a, for example can as shown in Fig. 5 (a), form ladder 24, also can as shown in Fig. 5 (b), form ladder 24.
The brazed structure 1a of the present embodiment forming is like this suitable for use as the structure of a part that is constructed as follows control valve unit (three-way valve of for example electromagnetic type), this control valve unit is that not shown sliding valve core reciprocatingly slides on valve seat surface 20b, thereby alternatively opens and closes and be formed at the opening 21b on valve seat surface 20b, the control valve unit of 22b.If formed a part for control valve unit by this brazed structure 1a, pipe joint 11,12 with state precision soldering well close to each other on valve base part 20, therefore can be by control valve unit miniaturization.In addition, because the sliding distance of sliding valve core also shortens, the wearing and tearing that therefore can make slide-valve main body reduce and also good control valve unit of valve responsiveness.
< the second mode of execution >
Secondly, the brazed structure 1b of the second mode of execution of the present invention is described as basis taking Fig. 6, Fig. 7.Fig. 6 is the stereogram that represents the brazed structure of the second mode of execution of the present invention.In addition, Fig. 7 is plan view and the sectional view that represents the brazed structure of the second mode of execution of the present invention, and Fig. 7 (a) is plan view, and Fig. 7 (b) is the sectional view of B-B line.
In addition, the brazed structure 1a of present embodiment is the structure substantially the same with the brazed structure 1a of above-mentioned the first mode of execution, for same component parts note prosign and description is omitted.
The brazed structure 1b of present embodiment is different from the embodiment described above, possesses three pipe joints 11,12,13.And, each pipe joint that perforation is provided with 21,22,23, three pipe joints 11,12,13 of three valve openings on valve base part 20 respectively be formed at opening 21a, the 22a on adhesive face 20a, a corresponding open communication of 23a, soldering is on valve base part 20.
In addition, in the present embodiment, as shown in Fig. 7 (a), between opening 21a and opening 22a and reciprocally approaching between opening 21a and opening 23a, its separating distance is all C.On the other hand, the degree separating between opening 22a and opening 23a is solder 12a and 13a nonoverlapping degree in the time overlooking at least.
And, as shown in Fig. 6 and Fig. 7 (b), near the peripheral portion of opening 21a, be formed with ladder 24, and be formed with the low stepped part 24a of other parts of specific adhesion face 20a., opening 21a is formed on the position of downside of ladder 24, opening 22a and 23a are formed on the position of upside of ladder 24.
In the brazed structure 1b of the present embodiment forming like this, identical with above-mentioned mode of execution, between opening 21a and opening 22a, form ladder 24, opening 21a is formed at respect on the lower position of opening 21b, therefore the height of solder 11a and solder 12a can be staggered and configures.In addition, between opening 21a and opening 23a, too, the height of solder 11a and solder 13a can be staggered and configures.
Therefore,, even opening 21a and opening 22a and opening 21a and opening 23a are formed on position approaching while overlooking, also can prevent that solder 11a, 12a, the 13a of the peripheral portion that is configured in these three opening 21a, 22a, 23a is in contact with one another.
In addition, the brazed structure 1b of the present embodiment forming is like this suitable for for example, a part as following control valve unit (four-way valve of electromagnetic type), this control valve unit is that not shown sliding valve core reciprocatingly slides on valve seat surface 20b, thereby alternatively opens and closes and be formed at opening 21b, the 22b on valve seat surface 20b, the control valve unit of 23b.If formed a part for control valve unit by this brazed structure 1b, pipe joint 11,12,13 with the state precision soldering well that approaches on valve base part 20, therefore can be by control valve unit miniaturization.In addition, because the sliding distance of sliding valve core also shortens, the wearing and tearing that therefore can make slide-valve main body reduce and also good control valve unit of valve responsiveness.
< the 3rd mode of execution >
Secondly, the brazed structure 1c of the 3rd mode of execution of the present invention is described as basis taking Fig. 8 and Fig. 9.Fig. 8 is stereogram and the plan view that represents the brazed structure of the 3rd mode of execution of the present invention.Fig. 9 is stereogram and the plan view that represents the brazed structure of comparative example.
In addition, the brazed structure 1c of present embodiment is the structure substantially the same with brazed structure 1a, the 1b of above-mentioned first and second mode of execution, for same component parts note prosign and description is omitted.
As shown in Figure 8, the brazed structure 1c of present embodiment possesses three pipe joints 11,12,13.And, each pipe joint that perforation is provided with 21,22,23, three pipe joints 11,12,13 of three valve openings on valve base part 20 with respectively with the mode soldering of a corresponding open communication that is formed at opening 21a, 22a on adhesive face 20a, 23a on valve base part 20.In addition, although not shown, be formed with valve seat surface in the back side of adhesive face 20a, on valve seat surface, be formed with accordingly three openings with valve opening 21,22,23.In addition, connect integratedly valve casing 32 in the valve seat surface side of valve base part 20, between the internal surface of valve casing 32 and valve seat surface, divide and form valve chamber 34.
In addition, in the present embodiment, as shown in Fig. 8 (b), reciprocally approaching between opening 21a and opening 22a, its separating distance becomes C.On the other hand, the degree separating between opening 21a and opening 23a and between opening 22a and opening 23a is solder nonoverlapping degree in the time overlooking at least.
And, as shown in Figure 8, near the peripheral portion of opening 21a, form ladder 24, and be formed with the low stepped part 24a of other parts of specific adhesion face 20a., opening 21a is formed at the position of the downside of ladder 24, opening 22a and 23a are formed at the position of the upside of ladder 24.
In the brazed structure 1c of the present embodiment forming like this, identical with above-mentioned mode of execution, between opening 21a and opening 22a, form ladder 24, opening 21a is formed at respect on the lower position of opening 21b, therefore the height of solder 11a and solder 12a can be staggered and configures.
Therefore,, even opening 21a and opening 22a are formed on position approaching while overlooking, also can prevent that solder 11a, the 12a of the peripheral portion that is configured in these two opening 21a, 22a is in contact with one another.
In addition, the brazed structure 1c of present embodiment is suitable for for example, a part as following control valve unit (electrodynamic type changing valve), this control valve unit is not shown sliding valve core taking the center of valve seat surface as basic point rotates, thereby alternatively open and close two openings (opening corresponding with valve opening 21 and valve opening 22) that are formed on valve seat surface, switch the control valve unit that flow into the outflow direction of the fluid of valve chamber from valve opening 23.If formed a part for control valve unit by this brazed structure 1c, pipe joint 11,12 with the state precision soldering well that approaches on valve base part 20, therefore can be by control valve unit miniaturization.In addition, due to the angle θ that can dwindle sliding valve core and rotate, the wearing and tearing that therefore can make slide-valve main body reduce and also good control valve unit of valve responsiveness.
On the other hand, for example as shown in Figure 9, between opening 21a ' and opening 22a ', do not form in the brazed structure 1c ' of comparative example of ladder, in order not make solder 11a' and 12a' overlapping, as shown in Fig. 9 (b), need to make its separating distance is C'(C < C') more than.In addition, the angle θ ' that slide valve rotates also becomes large.
Above, optimal way of the present invention is illustrated, but the present invention is not limited to above-mentioned mode, can carries out various changes in the scope that does not depart from object of the present invention.
For example in the above-described embodiment, by by armouring solder 11a, 12a ... pipe joint 11,12 ... insert valve opening 21,22 ... and by pipe joint 11,12 ... be inserted into solder 11a, 12a ... with the position of adhesive face 20a butt, thereby carry out pipe joint 11,12 and solder 11a, 12a ... location.So, can configure pipe joint 11,12 simultaneously ... with solder 11a, 12a ..., and solder 11a, 12a ... can with pipe joint 11,12 ... and adhesive face 20a reliably the mode precision of butt configure well, thereby comparatively desirable.But brazed structure of the present invention is not limited thereto, also can be by pipe joint 11,12 ... with solder 11a, 12a ... soldering again after being configured in respectively on adhesive face 20a.
For example, in the above-described embodiment, be illustrated as example brazed structure of the present invention is assembled in to situation in the part of control valve unit, but the purposes of brazed structure of the present invention is not limited thereto, for example, in refrigerant circulation, can also be applicable to distributor (splitter) of establishing for refrigeration agent is shunted etc.
Claims (4)
1. a brazed structure, the adherend that it possesses multiple tube partss and form multiple openings on adhesive face, and by each tube parts of above-mentioned multiple tube partss with respectively with above-mentioned multiple openings in the mode soldering of an open communication on the adhesive face of above-mentioned adherend
This brazed structure is characterised in that,
This brazed structure forms a part for control valve unit,
Each tube parts of above-mentioned multiple tube partss by the solder brazing of peripheral portion that is configured in above-mentioned opening on above-mentioned adhesive face,
In above-mentioned multiple openings, at least mutually between two openings approaching the most, form ladder, any of these two openings is formed at than on another low position.
2. brazed structure according to claim 1, is characterized in that,
Separating distance when by the overlooking of above-mentioned two openings that mutually approach is the most made as C, width during by the overlooking of solders in above-mentioned two openings that mutually approach the most, that be configured in the peripheral portion of an opening is made as d
1, by be configured in another opening the overlooking of solder of peripheral portion time width be made as d
2time, meet following relation:
D
1>=d
2situation: d
1< C < d
1+ d
2
D
1< d
2situation: d
2< C < d
1+ d
2.
3. brazed structure according to claim 2, is characterized in that,
In above-mentioned two openings that mutually approach the most, an above-mentioned opening is positioned at the downside of ladder, and the height of solder of the peripheral portion that is disposed at this opening is being made as to h
1, when the height of above-mentioned ladder is made as to H, meet following relation:
h
1＜H。
4. the method for welding of a tube parts, this tube parts forms a part for control valve unit, in the method for welding of this tube parts, with each tube parts of multiple tube partss respectively with the multiple openings that are formed on the adhesive face of adherend in the mode of an open communication, by the method for welding of the control valve unit on the adhesive face at above-mentioned adherend in above-mentioned multiple tube parts solderings, the method for welding of above-mentioned tube parts is characterised in that
There is following operation:
Prepare to form between two openings that approach the most in above-mentioned multiple openings, at least mutual the operation of stepped adherend;
The solder armouring operation of the each tube parts armouring solder to above-mentioned multiple tube partss;
Make the solder arrangement step of the peripheral portion butt of the solder of armouring on above-mentioned tube parts and above-mentioned opening; And
Make above-mentioned solder melting, the soldering operation by above-mentioned multiple tube parts solderings on the adhesive face of above-mentioned adherend.
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|---|---|---|---|
| JP2011-144355 | 2011-06-29 | ||
| JP2011144355A JP5406887B2 (en) | 2011-06-29 | 2011-06-29 | Valve device and method for manufacturing valve device |
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| CN102853108A CN102853108A (en) | 2013-01-02 |
| CN102853108B true CN102853108B (en) | 2014-12-03 |
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| CN104209616B (en) * | 2014-08-05 | 2019-05-31 | 上海思乐得不锈钢制品有限公司 | The welding method of vacuum bottom cover assembly |
| JP2016155137A (en) * | 2015-02-23 | 2016-09-01 | カルソニックカンセイ株式会社 | Joining method and joining device |
| JP6580724B2 (en) * | 2018-01-25 | 2019-09-25 | 株式会社不二工機 | Flow path switching valve and valve seat member used therefor |
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| CN1751197A (en) * | 2003-02-14 | 2006-03-22 | 株式会社鹭宫制作所 | Electrically operated switch-over valve |
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| JPS59163893A (en) * | 1983-03-08 | 1984-09-14 | 富士通株式会社 | Part mounting structure to ceramic circuit board |
| JPH03250788A (en) * | 1990-02-28 | 1991-11-08 | Toshiba Corp | Combined function mounting device |
| JP3934848B2 (en) * | 2000-03-30 | 2007-06-20 | 三菱電機株式会社 | High frequency brazing method and brazing apparatus |
| JP2004319809A (en) * | 2003-04-17 | 2004-11-11 | Renesas Technology Corp | Semiconductor chip and its manufacturing method |
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| CN1751197A (en) * | 2003-02-14 | 2006-03-22 | 株式会社鹭宫制作所 | Electrically operated switch-over valve |
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| JP平3-250788A 1991.11.08 * |
| JP昭59-163893A 1984.09.14 * |
| JP特开2001-276967A 2001.10.09 * |
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| JP5406887B2 (en) | 2014-02-05 |
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