CN108180330A - Nitrogen charging connector - Google Patents
Nitrogen charging connector Download PDFInfo
- Publication number
- CN108180330A CN108180330A CN201711384115.5A CN201711384115A CN108180330A CN 108180330 A CN108180330 A CN 108180330A CN 201711384115 A CN201711384115 A CN 201711384115A CN 108180330 A CN108180330 A CN 108180330A
- Authority
- CN
- China
- Prior art keywords
- face
- nitrogen
- charging connector
- hole
- connection bump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/14—Joints for pipes of different diameters or cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
Abstract
The present invention provides a kind of nitrogen charging connector, to when being brazed to tube body, nitrogen is filled with to tubular body by nitrogen charging connector, nitrogen charging connector has first end face, the first connection bump is provided in first end face, the filling channel that can be connected with external source nitrogen is provided on nitrogen charging connector, filling channel forms gas outlet in the first connection bump, tube body can be set in the first connection bump, enable external source nitrogen that nitrogen is filled in tube body by filling channel.The present invention, which has, can avoid the welding slag in brazing process from blocking gas outlet, and then the advantages of guarantee nitrogen charging effect.
Description
Technical field
The present invention relates to family's electro-technical field, more particularly to a kind of nitrogen charging connector.
Background technology
Copper pipe needs to be filled with nitrogen into copper pipe in brazing process in air-conditioning assembly, and its purpose is to prevent in copper pipe
Wall aoxidizes, and pollutes air-conditioning system, jeopardizes the service life of air-conditioning system, while prevent welding surface from aoxidizing, and hinders liquid solder
Flowing and filling in play movement, it is possible to create lack of penetration, weld seam slag inclusion and fusion penetration are inadequate and other issues, influence connector
Compactness and intensity.
Nitrogen is filled with copper by the mode for being filled with nitrogen into copper pipe at present using external source nitrogen by nitrogen charging connector mostly
Mode inside pipe, as shown in Figure 1, existing nitrogen charging connector gas outlet 21 corresponding with copper pipe is using interior heavy structure side
Formula, in this way when being brazed to copper pipe, welding slag easily blocks gas outlet 21, causes nitrogen charging effect bad.
Invention content
It is a primary object of the present invention to provide a kind of nitrogen charging connector, the welding slag in brazing process can be avoided to block outlet
Mouthful, and then ensure nitrogen charging effect.
The present invention provides a kind of nitrogen charging connector, to when being brazed to tube body, by the nitrogen charging connector to institute
It states tubular body and is filled with nitrogen, the nitrogen charging connector has first end face, it is convex that the first connection is provided in the first end face
It rises, the filling channel that can be connected with external source nitrogen is provided on the nitrogen charging connector, the filling channel is described first
Gas outlet is formed in connection bump, the tube body can be set in first connection bump, and external source nitrogen is made to pass through institute
It states filling channel nitrogen is filled in the tube body.
More preferably, limiting component is further included；
The limiting component is the tubular structure with limiting through hole, and is fixedly connected in the first end face, described
First connection bump is located within the limiting through hole, the tube body is made to can extend into the limiting through hole, and be set in institute
It states in the first connection bump.
More preferably, the limiting through hole includes the location hole close to the first end face, and the shape of the location hole is axis
The line cylinder vertical with the first end face, and diameter is more than the outer diameter of the tube body.
More preferably, the limiting through hole further includes the mounting hole far from the first end face, and the shape of the mounting hole is
The cylinder that axis is overlapped with the axis of the limiting through hole, and diameter is more than the diameter of the location hole.
More preferably, the limiting through hole further includes pilot hole；
The mounting hole is connected by the pilot hole with the location hole, the shape of the pilot hole for both ends respectively with
The mounting hole truncated cone-shaped identical with the diameter of the location hole.
More preferably, first connection bump is the cylinder being coaxially disposed with the location hole, and the gas outlet is located at
On the cylindrical end face.
More preferably, when the tube body is set in first connection bump, first connection bump and the pipe
It is interference fit between body.
More preferably, first connection bump is the truncated cone-shaped being coaxially disposed with the location hole, and far from described the
One end of end face is small nose circle, is big nose circle close to one end of the first end face, the gas outlet is located at the small nose circle
On；
The diameter of the small nose circle is less than the internal diameter of the tube body, and the diameter of the big nose circle is more than the interior of the tube body
Diameter.
More preferably, the nitrogen charging connector further includes the second end face opposite with the first end face, in the second end face
On be provided with the second connection bump to be connect with external source nitrogen, filling channel shape in second connection bump
Into air inlet, nitrogen is enable to enter filling channel by the air inlet.
More preferably, second connection bump cylinder vertical with the second end face for axis, the air inlet position
In on the end face of the cylinder；
Screw thread is provided on the side wall of the cylinder, to make to be threaded on external source nitrogen.
The nitrogen charging connector of the offer of the present invention, it is described to fill using being provided with the first connection bump in the first end face
The filling channel that can be connected with external source nitrogen is provided on nitrogen connector, the filling channel is in first connection bump
Gas outlet is formed, the tube body can be set in the technical solution in first connection bump, can avoid in brazing process
Middle welding slag blocks gas outlet, and then ensures nitrogen charging effect.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the present invention, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is nitrogen charging joint structure schematic diagram of the prior art；
Fig. 2 is one example structure schematic diagram of nitrogen charging connector of the present invention；
In figure：1st, first end face；11st, the first connection bump；2nd, filling channel；21st, gas outlet；22nd, air inlet；3rd, it limits
Component；4th, limiting through hole；41st, location hole；42nd, mounting hole；43rd, pilot hole；5th, second end face；51st, the second protrusion.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only 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
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.
As shown in Fig. 2, a kind of nitrogen charging connector, when being brazed to tube body (not shown), to pass through nitrogen charging connector
Nitrogen is filled with to tubular body, nitrogen charging connector has first end face 1, the first connection bump 11 is provided in first end face 1, is filled
The filling channel 2 that can be connected with external source nitrogen is provided on nitrogen connector, filling channel 2 is formed in the first connection bump 11
Gas outlet 21, tube body can be set in the first connection bump 11, external source nitrogen is made to pass through filling channel 2, nitrogen is filled with pipe
In body.Using such technical solution, when welding slag is fallen in first end face 1 in tube body progress brazing process, due to first
Connection bump 11 protrudes first end face 1, and gas outlet 21 is located in the first connection bump 11, therefore welding slag can be avoided to block
Gas outlet 21, and then ensure that nitrogen charging effect.
Specifically, as shown in Fig. 2, further including limiting component 3, limiting component 3 is the tubular structure with limiting through hole 4,
And be fixedly connected in first end face 1, the first connection bump 11 is located within limiting through hole 4, tube body is made to can extend into limiting logical
In hole 4, and it is set in the first connection bump 11.Tube body can accurately be connected by the position-limiting action of limiting component 3 in this way
It is connected in the first connection bump 11, while can also ensure that the stability connected between tube body and the first connection bump 11, avoid
Occur tube body during nitrogen charging to come off.Preferably, limiting through hole 4 includes the location hole 41 close to first end face 1, location hole 41
Shape be the axis cylinder vertical with first end face 1, and diameter is more than the outer diameter of tube body, to ensure that tube body can be smooth
It is inserted into location hole 41.More preferably, limiting through hole 4 further includes the mounting hole 42 far from first end face 1, and the shape of mounting hole 42 is
The cylinder that axis is overlapped with the axis of limiting through hole 4, and diameter is more than the diameter of location hole 41.It is straight due to location hole 41
Diameter is more than the diameter of tube body, and the diameter of mounting hole 42 is more than the diameter of location hole 41, therefore the diameter of mounting hole 42 can be than pipe
Big more of the diameter of body, are more advantageous to tube body being inserted into limiting through hole 4 in this way.Again during specific making, limiting can be used
Through-hole 4 further includes pilot hole 43, and mounting hole 42 is connected by pilot hole 43 with location hole 41, and the shape of pilot hole 43 is both ends point
The not truncated cone-shaped identical with the diameter of mounting hole 42 and location hole 41.It, can be by leading in this way after tube body is inserted into mounting hole 42
It is properly inserted in location hole 41 to the guiding in hole 43, is conducive to tube body being connected in the first connection bump 11.
In actual fabrication, the first connection bump 11 is the cylinder being coaxially disposed with location hole 41, and gas outlet 21 is located at
On the cylindrical end face, cylindrical end face mentioned here refers to the end face of the one end of cylinder far from first end face 1.Simultaneously
It is interference fit between the first connection bump 11 and tube body when tube body is set in the first connection bump 11.It can make in this way
It realizes and is tightly connected between first connection bump 11 and tube body, reduce tube body and the first connection bump 11 cooperation gap helium leak
Caused air backrush occurrence probability, makes nitrogen charging effect be guaranteed.
As a kind of embodiment, the first connection bump 11 is the truncated cone-shaped being coaxially disposed with location hole 41, and remote
One end from first end face 1 is small nose circle, is big nose circle close to one end of first end face 1, gas outlet 21 is located on small nose circle.It is small
The diameter of nose circle is less than the internal diameter of tube body, and the diameter of big nose circle is more than the internal diameter of tube body.It so when in use, can be by the first connection
The small nose circle of protrusion 11 is deep into the inside of tube body, and as the length of inside that the first connection bump 11 stretches into tube body adds
Greatly, the sealing between the first connection bump 11 and tube body is realized.
As a kind of embodiment, as shown in Fig. 2, nitrogen charging connector further includes the second end face opposite with first end face 1
5, the second connection bump 51 to be connect with external source nitrogen is provided in second end face 5, filling channel 2 is in the second connection
Air inlet 22 is formed in protrusion 51, nitrogen is enable to enter filling channel 2 by air inlet 22.Specifically, the second connection bump
51 cylinders vertical with second end face 5 for axis, air inlet 22 are located on cylindrical end face, are set on cylindrical side wall
Screw thread is equipped with, to make to be threaded on external source nitrogen.It should be noted that the connection of nitrogen charging connector and external source nitrogen
Mode is not limited to that, can also use any other connection mode that can realize goal of the invention.
Above example, which has the present invention, can avoid the welding slag in brazing process from blocking gas outlet, and then ensure nitrogen charging
The advantages of effect.
The foregoing is merely the embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of nitrogen charging connector, when being brazed to tube body, to be filled with by the nitrogen charging connector to the tubular body
Nitrogen, it is characterised in that：
The nitrogen charging connector has first end face (1), and the first connection bump (11), institute are provided in the first end face (1)
The filling channel (2) that is provided with and can be connected with external source nitrogen on nitrogen charging connector is stated, the filling channel (2) is described first
Gas outlet (21) is formed in connection bump (11), the tube body can be set on first connection bump (11), make outside
Nitrogen is filled in the tube body by source nitrogen by the filling channel (2).
2. nitrogen charging connector according to claim 1, it is characterised in that：
Further include limiting component (3)；
The limiting component (3) is the tubular structure with limiting through hole (4), and is fixedly connected in the first end face (1),
First connection bump (11) makes the tube body can extend into the limiting through hole (4) within the limiting through hole (4)
In, and be set on first connection bump (11).
3. nitrogen charging connector according to claim 2, it is characterised in that：
The limiting through hole (4) includes the location hole (41) close to the first end face (1), and the shape of the location hole (41) is
The axis cylinder vertical with the first end face (1), and diameter is more than the outer diameter of the tube body.
4. nitrogen charging connector according to claim 3, it is characterised in that：
The limiting through hole (4) further includes the mounting hole (42) far from the first end face (1), the shape of the mounting hole (42)
For the cylinder that axis is overlapped with the axis of the limiting through hole (4), and diameter is more than the diameter of the location hole (41).
5. nitrogen charging connector according to claim 4, it is characterised in that：
The limiting through hole (4) further includes pilot hole (43)；
The mounting hole (42) is connected by the pilot hole (43) with the location hole (41), the shape of the pilot hole (43)
For the both ends truncated cone-shaped identical with the diameter of the mounting hole (42) and the location hole (41) respectively.
6. nitrogen charging connector according to claim 3, it is characterised in that：
First connection bump (11) is the cylinder being coaxially disposed with the location hole (41), and the gas outlet (21) is located at
On the cylindrical end face.
7. nitrogen charging connector according to claim 6, it is characterised in that：
When the tube body is set on first connection bump (11), first connection bump (11) and the tube body it
Between for interference fit.
8. nitrogen charging connector according to claim 3, it is characterised in that：
First connection bump (11) is the truncated cone-shaped being coaxially disposed with the location hole (41), and far from the first end
The one end in face (1) is small nose circle, is big nose circle close to one end of the first end face (1), the gas outlet (21) is positioned at described
On small nose circle；
The diameter of the small nose circle is less than the internal diameter of the tube body, and the diameter of the big nose circle is more than the internal diameter of the tube body.
9. the nitrogen charging connector according to claim 1 to 8 any one, it is characterised in that：
The nitrogen charging connector further includes the second end face (5) opposite with the first end face (1), in the second end face (5)
The second connection bump (51) to be connect with external source nitrogen is provided with, the filling channel (2) is convex in the described second connection
It rises and forms air inlet (22) on (51), enable nitrogen by the air inlet (22) into filling channel (2).
10. nitrogen charging connector according to claim 9, it is characterised in that：
Second connection bump (51) cylinder vertical with the second end face (5) for axis, air inlet (22) position
In on the end face of the cylinder；
Screw thread is provided on the side wall of the cylinder, to make to be threaded on external source nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384115.5A CN108180330A (en) | 2017-12-20 | 2017-12-20 | Nitrogen charging connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384115.5A CN108180330A (en) | 2017-12-20 | 2017-12-20 | Nitrogen charging connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108180330A true CN108180330A (en) | 2018-06-19 |
Family
ID=62546580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711384115.5A Pending CN108180330A (en) | 2017-12-20 | 2017-12-20 | Nitrogen charging connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029798A (en) * | 2022-07-28 | 2022-09-09 | 安丹达工业技术(上海)有限公司 | Spinning injection equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181157Y (en) * | 2008-01-28 | 2009-01-14 | 比亚迪股份有限公司 | Inert gas caching device for preventing high temperature oxidation |
| CN201637328U (en) * | 2009-12-16 | 2010-11-17 | 浙江康盛股份有限公司 | Installation joint for microchannel condenser |
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protecting tool thereof |
| CN202824924U (en) * | 2012-08-20 | 2013-03-27 | 珠海格力电器股份有限公司 | Pipe joint welding fixture |
| JP2014015983A (en) * | 2012-07-09 | 2014-01-30 | Nippon Steel & Sumikin Kikoh Co Ltd | Seal structure of high-pressure gas container |
| CN104708164A (en) * | 2014-12-25 | 2015-06-17 | 河南牧业经济学院 | Connector and nitrogen filling welding connection device using same |
-
2017
- 2017-12-20 CN CN201711384115.5A patent/CN108180330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181157Y (en) * | 2008-01-28 | 2009-01-14 | 比亚迪股份有限公司 | Inert gas caching device for preventing high temperature oxidation |
| CN201637328U (en) * | 2009-12-16 | 2010-11-17 | 浙江康盛股份有限公司 | Installation joint for microchannel condenser |
| JP2014015983A (en) * | 2012-07-09 | 2014-01-30 | Nippon Steel & Sumikin Kikoh Co Ltd | Seal structure of high-pressure gas container |
| CN202824924U (en) * | 2012-08-20 | 2013-03-27 | 珠海格力电器股份有限公司 | Pipe joint welding fixture |
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protecting tool thereof |
| CN104708164A (en) * | 2014-12-25 | 2015-06-17 | 河南牧业经济学院 | Connector and nitrogen filling welding connection device using same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029798A (en) * | 2022-07-28 | 2022-09-09 | 安丹达工业技术(上海)有限公司 | Spinning injection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180619 |