CN1814393A - Soldered seal structure of power head part for thermal expansion valve - Google Patents
Soldered seal structure of power head part for thermal expansion valve Download PDFInfo
- Publication number
- CN1814393A CN1814393A CN 200510049049 CN200510049049A CN1814393A CN 1814393 A CN1814393 A CN 1814393A CN 200510049049 CN200510049049 CN 200510049049 CN 200510049049 A CN200510049049 A CN 200510049049A CN 1814393 A CN1814393 A CN 1814393A
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- stopper
- hole
- expansion valve
- wall
- head part
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- Temperature-Responsive Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
This invention is related to a brazing and sealing structure of dynamic head component of thermal expansion valve. The dynamic head component is consists of a stopper and a cavity which used to accommodate the thermal-sensitive medium. The cavity has holes in its ektexine and the medium can be added into the cavity through the holes. The stopper is used to plug the holes so the medium is sealed in the cavity. Its characteristics are placing brazing filler metal between the stopper and the ektexine and brazing to form a seal, so the thermal-sensitive medium is sealed in the cavity reliably. The program uses the method of brazing to put brazing filler metal between the stopper and ektexine, and melting down the brazing filler metal using the thermal resistance, and make the filler infiltrated into the stopper and the ektexine and realize the connection of the two parts. It is not only helpful for ensuring the seal and preventing the outer wall from being corrupted, but it also can resist the pressure effectively that produced by the heat expansion of the medium, and it is helpful for molding in one time in process.
Description
[technical field]
The present invention relates to be applicable to the heating power expansion valve of air-conditioning system, especially be plugged in the filling the hole of unit head (being also referred to as air tank head) parts and thermal media is sealed in structure in the container cavity with stopper.
[background technology]
The existing heating power expansion valve that is applicable to air-conditioning system has clearly record in notification number is the patent of invention specification of CN 1058779C, and mainly the structure that thermal media is sealed in the container cavity has been made detailed description to be plugged in the filling the hole of power head part with stopper, the analytic induction that the document is done prior art is: 1. carry out projection welding between the conical face of hole surrounding edge portion and stopper, because of around projection welding portion, forming recess, therefore easily cause ponding (dew etc.) at this recess place, exist the problem that makes the cover outer wall corrosion; 2. adopt projection welding that stopper is positioned weldering, the structure that seals with the soldering weld part is difficult to form the projection welding alloy, undercapacity, and between projection welding position and soldering position, form the cavity, cause the internal corrosion problem easily.At these defectives, it carries out projection welding by surrounding edge portion and the stopper to the hole of cover outer wall, covering with anti-corrosion material around the projection welding position and makes it not ponding.
Publication number is that the application for a patent for invention prospectus of CN 1177714A has then been pointed out the deal with problems deficiency of the technical scheme taked of CN 1058779C patent of invention specification---only stopper is welded in the hole of cover outer wall then promptly that weld strength because of projection welding is not enough to be difficult to implement seal infalliblely with projection welding, and proposed following solution: 1. stopper has the metal material machining to form, and weld the periphery and the stopper in described hole, and has the anticorrosive that covers described weld part with electric resistance welding; 2. weld the periphery and the stopper in described hole with electric resistance welding, and have the anticorrosive that covers described weld part, described stopper has the conical surface that the periphery with described hole joins, and forms circumferential line contact site on the described conical surface.But because projection welding is to make the contact site fusing of two interface member and directly link together by resistance heat, therefore the contact area of two parts is more little, and the resistance heat that produces on the unit are is big more, and welding effect is good more, otherwise then anti-; Therefore above-mentioned solution has but been sacrificed the welding quality on the unit are when reaching a plurality of welding positions, this be with stopper thermal media is sealed in the container cavity undesirable, unless increase welding energy; And, between a plurality of welding positions, can form equally and point out " cavity " in the CN 1058779C patent of invention specification and cause the internal corrosion problem.
On more profound since when welding sealed thermal media expanded by heating and pressure increases, this is very disadvantageous to smaller weld part (0.2-1.5mm is good) that projection welding forms; Based on the characteristics of projection welding, around projection welding portion, form recess and be difficult to avoid, therefore if will prevent outer wall corrosion, need to be difficult on the technology once realize around the projection welding position, covering with anti-corrosion material.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome the defective that prior art exists, and provides a kind of soldered seal structure of power head part for thermal expansion valve, so that one-shot forming when satisfying seal request, reaches anticorrosion purpose.For this reason, the present invention is by the following technical solutions:
A kind of soldered seal structure of power head part for thermal expansion valve, this power head part comprises stopper and is used to hold the container cavity of thermal media, offer the filled hole that is used in it, filling thermal media on the outer wall of container cavity, stopper is used for shutoff and fills the hole and thermal media is sealed in the container cavity, it is characterized in that put between described stopper and the outer wall solder by soldering between described stopper and outer wall, forms seal with thermal media reliably shutoff in container cavity.
In the specific implementation, can optionally adopt following additional (specifically) technical measures, to meet the requirements of effect.
Be arranged with corresponding solder side on described stopper and the outer wall, described solder is placed between two solders side.Described solder side is good with the plane, also can be that looking like of other patterns can add groove in the middle of the plane, to hold the gas that produces in the welding process or as laying welding wire usefulness.
Described stopper comprises head and afterbody, and the solder side on it is positioned on the afterbody with the head intersection.
Described head column or taper.
Scolder is covered with solder side after the soldering, and has part excessive.
Described filled hole is isometrical hole or reducing hole.
The present invention utilizes the method for soldering to put solder between stopper and outer wall, by the resistance heat molten solder, making solder infiltrate into stopper realizes being connected the two with outer wall is interior, therefore only need just can meet the requirements of welding effect by control to solder, obtain bigger weld part, avoid the formation of the recess that projection welding is difficult to avoid, not only be beneficial to and guarantee sealing and prevent outer wall corrosion, and can effectively resist the thermal media expanded by heating and the pressure that produces, on technology, also be beneficial to one-shot forming.
Below in conjunction with specification drawings and specific embodiments to the present invention to more detailed description.
[description of drawings]
Fig. 1 a, 1b～7a, 7b are seven forward and backward concrete structure schematic diagrames of soldering of the present invention.
Fig. 8,9 two concrete structures in addition and placement location schematic diagrames thereof for solder before the soldering of the present invention.
[specific embodiment]
Embodiment one:
Shown in Fig. 1 a, 1b, be on outer wall 11, to offer hole 11a as filling the hole, the position of its upper surface adjacent bores 11a forms the plane as outer wall solder side 11b; Stopper 12 is round table-like, and its upper end is as afterbody 12a, and the lower end is as head 12b, and the step surface of head and afterbody adjacent is solder side 12c; Solder 13 places between outer wall solder side 11b and the stopper solder side 12c; During welding, after treating to be full of thermal media in the container cavity, plug tail with the anchor clamps clamping advance to fill the hole and compresses (plug head portion cooperate with filled hole have guide effect) therebetween, the energising heat that has a resistance makes solder fusing form sealing, finish being connected of stopper and outer wall,, both played sealing function because solder evenly fills up the gap between stopper and the outer wall, play antisepsis again, the last moulding of technology.
Embodiment two:
Shown in Fig. 2 a, 2b, be on outer wall 21, to offer taper hole 21a as filling the hole, the position of the contiguous taper hole 21a of its upper surface forms the plane as outer wall solder side 21b; Stopper 22 is round table-like, and its upper end cylindrical portion is as afterbody 22a, and frustum portion in lower end is as head 22b, and the step surface of head and afterbody adjacent is solder side 22c; Solder 23 places between outer wall solder side 21b and the stopper solder side 22c; Welding is with embodiment one.
Embodiment three:
Shown in Fig. 3 a, 3b, be on outer wall 31, to offer reducing hole 31a as filling the hole, its epimere is a taper hole, and its hypomere is a circular hole, and the position of the contiguous reducing hole 31a of outer wall 31 upper surfaces forms the plane as outer wall solder side 31b; Stopper 32 is round table-like, and its upper end cylindrical portion is as afterbody 32a, and frustum portion in lower end is as head 32b, and the step surface of head and afterbody adjacent is solder side 32c; Solder 33 places between outer wall solder side 31b and the stopper solder side 32c; Welding is with embodiment one.
Embodiment four:
Shown in Fig. 4 a, 4b, be on outer wall 41, to offer reducing hole 31a as filling the hole, its epimere is a big footpath circular hole, and its hypomere is the path circular hole, and the step surface of big footpath circular hole and path circular hole adjacent is as outer wall solder side 41b; Stopper 42 is round table-like, and its upper end is as afterbody 42a, and the lower end is as head 42b, and the step surface of head and afterbody adjacent is solder side 42c; Solder 43 places between outer wall solder side 41b and the stopper solder side 42c; Welding is with embodiment one.
Embodiment five:
Shown in Fig. 5 a, 5b, be on outer wall 51, to offer reducing hole 51a as filling the hole, its epimere is a big footpath circular hole, and its hypomere is the path taper hole, and the step surface of big footpath circular hole and path taper hole adjacent is as outer wall solder side 51b; Stopper 52 is round table-like, and its upper end is as afterbody 52a, and the lower end is as head 52b, and the step surface of head and afterbody adjacent is solder side 52c; Solder 53 places between outer wall solder side 51b and the stopper solder side 52c; Welding is with embodiment one.
Embodiment six:
Shown in Fig. 6 a, 6b, be on outer wall 61, to offer reducing hole 61a as filling the hole, its epimere is a big footpath circular hole, and its hypomere is the path circular hole, and the stage casing is a taper hole, and the step surface of big footpath circular hole and taper hole adjacent is as outer wall solder side 61b; Stopper 62 is round table-like, and its upper end is as afterbody 62a, and the lower end is as head 62b, and the step surface of head and afterbody adjacent is solder side 62c; Solder 63 places between outer wall solder side 61b and the stopper solder side 62c; Welding is with embodiment one.
Embodiment seven:
Shown in Fig. 7 a, 7b, be that outer wall 71 thickened section are offered reducing hole 71a as filling the hole, its epimere is a big footpath circular hole, and its hypomere is the path circular hole, and the step surface of big footpath circular hole and path circular hole adjacent is as outer wall solder side 71b; Stopper 72 is round table-like, and its upper end is as afterbody 72a, and the lower end is as head 72b, and the step surface of head and afterbody adjacent is solder side 72c; Solder 73 places between outer wall solder side 71b and the stopper solder side 72c; Welding is with embodiment one.
Scolder in the foregoing description is generally the garden ring-type, and the cross section is circular, also can be the cross sectional shape shown in 83,93 among Fig. 8,9; Aforementioned scolder can form from a sheet-metal press working, also can roll with circular or non-circular welding wire to form.
The hole that power head part that relates in the literary composition and filled hole correspond respectively to the pressure movable guard (or pressure-driven cover) in the document formerly and form on it.
Claims (7)
1, a kind of soldered seal structure of power head part for thermal expansion valve, this power head part comprises stopper and is used to hold the container cavity of thermal media, offer the filled hole that is used in it, filling thermal media on the outer wall of container cavity, stopper is used for shutoff and fills the hole and thermal media is sealed in the container cavity, it is characterized in that put between described stopper and the outer wall solder by soldering between described stopper and outer wall, forms seal with thermal media reliably shutoff in container cavity.
2, according to claims 1 described soldered seal structure of power head part for thermal expansion valve, it is characterized in that being arranged with corresponding solder side on described stopper and the outer wall, described solder is placed between two solders side.
3,, it is characterized in that described solder side is the plane according to claims 2 described soldered seal structure of power head part for thermal expansion valve.
4, according to claims 2 described soldered seal structure of power head part for thermal expansion valve, it is characterized in that described stopper comprises head and afterbody, the solder side on it is positioned on the afterbody with the head intersection.
5, according to claims 4 described soldered seal structure of power head part for thermal expansion valve, it is characterized in that described head column or taper.
6, according to claims 2 or 4 described soldered seal structure of power head part for thermal expansion valve, it is characterized in that soldering after scolder be covered with solder side, and have part excessive.
7,, it is characterized in that described filled hole is isometrical hole or reducing hole according to claims 1 described soldered seal structure of power head part for thermal expansion valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049049 CN1814393A (en) | 2005-02-04 | 2005-02-04 | Soldered seal structure of power head part for thermal expansion valve |
| JP2006024939A JP4665107B2 (en) | 2005-02-04 | 2006-02-01 | Assembling structure of temperature expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049049 CN1814393A (en) | 2005-02-04 | 2005-02-04 | Soldered seal structure of power head part for thermal expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1814393A true CN1814393A (en) | 2006-08-09 |
Family
ID=36906807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510049049 Pending CN1814393A (en) | 2005-02-04 | 2005-02-04 | Soldered seal structure of power head part for thermal expansion valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4665107B2 (en) |
| CN (1) | CN1814393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555487A (en) * | 2018-06-15 | 2021-03-26 | 杭州三花研究院有限公司 | Electric valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232394B (en) * | 2018-03-16 | 2023-08-25 | 成都锦江电子系统工程有限公司 | High-precision waveguide power divider and processing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2930490B2 (en) * | 1992-12-16 | 1999-08-03 | 株式会社テージーケー | Method of sealing a temperature-sensitive gas to the temperature-sensitive part of the expansion valve |
| JP2001171337A (en) * | 1994-12-22 | 2001-06-26 | Fuji Koki Corp | Temperature expansion valve |
| JPH1089809A (en) * | 1996-09-18 | 1998-04-10 | Fuji Koki:Kk | Expansion valve |
| JP2005351485A (en) * | 2004-06-08 | 2005-12-22 | Tgk Co Ltd | Temperature type expansion valve |
-
2005
- 2005-02-04 CN CN 200510049049 patent/CN1814393A/en active Pending
-
2006
- 2006-02-01 JP JP2006024939A patent/JP4665107B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555487A (en) * | 2018-06-15 | 2021-03-26 | 杭州三花研究院有限公司 | Electric valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006214715A (en) | 2006-08-17 |
| JP4665107B2 (en) | 2011-04-06 |
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Open date: 20060809 |