CN209100732U - Air-conditioning system and its expansion valve - Google Patents
Air-conditioning system and its expansion valve Download PDFInfo
- Publication number
- CN209100732U CN209100732U CN201821427088.5U CN201821427088U CN209100732U CN 209100732 U CN209100732 U CN 209100732U CN 201821427088 U CN201821427088 U CN 201821427088U CN 209100732 U CN209100732 U CN 209100732U
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- air inlet
- inlet pipe
- annular groove
- expansion valve
- valve seat
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Abstract
The utility model relates to a kind of expansion valves, including valve seat, air inlet pipe and escape pipe.Valve seat has air inlet mounting surface and outlet mounting surface.Air inlet mounting surface offers air inlet.Outlet mounting surface offers the venthole being connected to air inlet.Air inlet mounting surface offers annular groove along the circumferential direction of air inlet.Annular groove surrounds and forms a boss.One end of air inlet pipe is contained in annular groove and is connected to air inlet.Boss is arranged in air inlet pipe and is interference fitted with the inner wall of air inlet pipe.One end of escape pipe is connected to venthole.The utility model additionally provides a kind of air-conditioning system.The inner wall and boss of air inlet pipe are interference fitted, so that the connection of air inlet pipe and valve seat is more secured, air inlet pipe and valve seat are greatly reduced into burner hearth in transmission process, air inlet pipe is caused to fall off, the probability that rigging position offset occurs because of situations such as reasons such as continuous tunnel furnace conveyer belt vibrations, so that air-conditioning system and its expansion valve all have higher assembly efficiency.
Description
Technical field
The utility model relates to air-conditioning system manufacturing technology fields, more particularly to a kind of air-conditioning system and its expansion valve.
Background technique
Expansion valve, also known as throttle valve or regulating valve are the Important Components in air-conditioning system, mainly rise reducing pressure by regulating flow and
Adjust the effect of flow.Expansion valve is respectively separated setting air inlet pipe and escape pipe, and air inlet pipe and escape pipe are and valve seat is to weld
The mode connect is fixedly connected.Air inlet pipe and escape pipe are usually all the welding realized by continuous tunnel furnace with valve seat.Ordinary circumstance
Under, air inlet pipe and escape pipe were assembled with valve seat before this, then the air inlet pipe assembled and escape pipe and valve seat are placed in work together
It loads onto, then is placed in be sent into burner hearth on continuous tunnel furnace conveyer belt together with tooling and be welded.
In order to be welded successfully air inlet pipe and escape pipe and valve seat, under normal circumstances, air inlet pipe and escape pipe and valve seat it
Between there are gaps, and tooling only has supporting role to air inlet pipe and escape pipe, and there is no fixed functions, so that air inlet pipe and outlet
Manage valve seat between connection more loosen so that air inlet pipe and escape pipe under the factors such as the vibration of continuous tunnel furnace conveyer belt easily
Occur and fall off or rigging position change situations such as, the welding efficiency in turn resulting in air inlet pipe and escape pipe is not high, significantly shadow
The assembly efficiency of expansion valve is rung.
Utility model content
Based on this, it is necessary to aiming at the problem that traditional expansion valve assembly efficiency is not high, it is high to provide a kind of assembly efficiency
Air-conditioning system and its expansion valve.
A kind of expansion valve, including,
Valve seat, has air inlet mounting surface and outlet mounting surface, and the air inlet mounting surface offers air inlet, the outlet peace
Dress face offers the venthole being connected to the air inlet, and the air inlet mounting surface offers annular along the circumferential direction of the air inlet
Slot, the annular groove surround and form a boss；
Air inlet pipe, one end are contained in the annular groove and be connected tos with the air inlet, the boss be arranged in described in into
Tracheae is simultaneously interference fitted with the inner wall of the air inlet pipe；And
Escape pipe, one end are connected to the venthole.
The wall thickness of the air inlet pipe is less than the width of the annular groove in one of the embodiments,.
In one of the embodiments, the gap width between the outer wall of the air inlet pipe and the annular groove be it is described into
/ 10th of tracheae wall thickness.
The width of the annular groove of the depth of the annular groove greater than 2 times in one of the embodiments,.
The air inlet mounting surface offers the welding slot being connected to the annular groove in one of the embodiments, described
Welding slot is set to the outer peripheral edge of the annular groove and along the circumferentially extending of the annular groove.
The depth of the welding slot is less than the depth of the annular groove in one of the embodiments,.
The open edge of the annular groove offers transition chamfering in one of the embodiments,.
In one of the embodiments, the annular groove be annular groove, the outer edge shape of the boss and it is described into
The edge shape of inner surface of trachea matches.
The air inlet pipe and the air inlet are coaxially disposed in one of the embodiments,.
A kind of air-conditioning system, including expansion valve.
Above-mentioned air-conditioning system and its expansion valve, the inner wall and boss of air inlet pipe are interference fitted, so that air inlet pipe and valve seat are real
Now it is fixedly connected.Therefore, before valve seat and air inlet pipe enter continuous tunnel furnace, air inlet pipe is fixed on ring in an interference fit
In shape slot, so that the connection of air inlet pipe and valve seat is more secured, greatly reduces air inlet pipe and valve seat and conveyed into burner hearth
Cheng Zhong causes air inlet pipe to fall off, the probability that rigging position offset occurs because of situations such as reasons such as continuous tunnel furnace conveyer belt vibrations,
The welding efficiency between air inlet pipe and valve seat is effectively improved, so that the assembly efficiency of expansion valve is higher.Therefore, on including
The air-conditioning system for stating expansion valve also has higher assembly efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the utility model preferred embodiment after expansion valve clipped binding structure；
Fig. 2 is the structural schematic diagram of valve seat in expansion valve shown in Fig. 1；
Fig. 3 is the partial enlarged view of expansion valve shown in Fig. 1；
Fig. 4 is the status diagram in expansion valve shown in Fig. 1 after the completion of air inlet pipe welding.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1, the utility model provides a kind of air-conditioning system and its expansion valve 100.Wherein, air-conditioning system includes
Expansion valve 100.
Expansion valve 100 in the utility model preferred embodiment includes valve seat 110, air inlet pipe 120 and escape pipe 130.
Referring to Figure 2 together, valve seat 110 has air inlet mounting surface 111 and outlet mounting surface 112.Air inlet mounting surface 111 is opened
Equipped with air inlet 113.Outlet mounting surface 112 offers the venthole 116 being connected to air inlet 113.Air inlet mounting surface 111 along into
The circumferential direction of stomata 113 offers annular groove 114.Annular groove 114 is around one boss 115 of formation.
Critical elements of the valve seat 110 as expansion valve 100 are mainly used for supporting spool closed positions, and constitute sealing pair.
Therefore, valve seat 110 mainly plays a part of to support and control flow.Under normal circumstances, valve seat 110 is by austenitic stainless steel, tungsten chromium
Cobalt alloy equal strength is larger and the preferable material of fluid compatibility is made.Within air-conditioning systems, air inlet 113 and venthole 116
It is mainly used for making refrigerant into and out expansion valve 100.
Also referring to Fig. 3, one end of air inlet pipe 120 is contained in annular groove 114 and is connected to air inlet 113.Boss 115
It is arranged in air inlet pipe 120 and is interference fitted with the inner wall of air inlet pipe 120.
Therefore, before air inlet pipe 120 and valve seat 110 weld, since the inner wall and boss 115 of air inlet pipe 120 are interference fitted, make
It obtains air inlet pipe 120 and the connection of valve seat 110 is relatively firm, greatly reduce the burner hearth of air inlet pipe 120 and valve seat 110 to continuous tunnel furnace
During interior conveying, cause that 120 positional shift of air inlet pipe, fall off generation because of situations such as reasons such as tunnel conveyer belt vibrations
Probability, effectively improve the welding efficiency of air inlet pipe 120.And air inlet pipe 120 is mainly used for connecting valve seat 110 and air-conditioning system
Other component in system.
One end of escape pipe 130 is connected to venthole 116.Escape pipe 130 is mainly used for connecting valve seat 110 and air-conditioning system
Other component.One end of escape pipe 130 can be fixed on outlet mounting surface 112, can also be contained in venthole 116.Into
One step, the outer wall of escape pipe 130 can also be interference fitted with 116 clearance fit of venthole with venthole 116.
Further, in the present embodiment, the outer wall of escape pipe 130 and 116 clearance fit of venthole.Therefore, escape pipe
Gap is formed between 130 outer wall and venthole 116, so that the solder of molten condition enters gap and forms solder in gap
Layer, to weld escape pipe 130 and valve seat 110, so that the welding effect of escape pipe 130 is more preferable.
When air-conditioning system is in refrigeration or heating mode, refrigerant enters valve seat 110 by air inlet pipe 120, into valve
The refrigerant of seat 110 passes through escape pipe 130 again and is discharged.And expansion valve 100 passes through the unlatching size of valve port on control valve seat 110,
To control the flow that refrigerant passes through valve seat 110, to realize the control to air-conditioning system refrigeration or heating effect.
The inner wall and boss 115 of air inlet pipe 120 are interference fitted, so that air inlet pipe 120 is fixedly connected with valve seat 110, therefore into
Tracheae 120 and the connection of valve seat 110 are more secured, greatly reduce air inlet pipe 120 and valve seat 110 is defeated into the burner hearth of continuous tunnel furnace
During sending, 120 positional shift of air inlet pipe is caused because of situations such as reasons such as tunnel conveyer belt vibrations, falls off that it is general to occur
Rate effectively improves the welding efficiency between air inlet pipe 120 and valve seat 110, so that the assembly efficiency of expansion valve 100 is more
It is high.
Referring to Figure 4 together, in the present embodiment, the wall thickness of air inlet pipe 120 is less than the width of annular groove 113.So into
There is gap between the outer wall and annular groove 114 of tracheae 120.Therefore, it during air inlet pipe 120 and valve seat 110 are welded, melts
The solder for melting state can flow into the gap between the outer wall of air inlet pipe 120 and annular groove 114, to increase air inlet pipe 120 and valve
The bonding area of seat 110, so that the connection of air inlet pipe 120 and valve seat 110 after welding is more secured, so that expansion valve
100 structure is more firm.
It is appreciated that in other embodiments, the width of the wall thickness and annular groove 113 of air inlet pipe 120 matches.As a result,
Air inlet pipe 120 and the installation of annular groove 113 are more secured so that the connection of air inlet pipe 120 and valve seat 110 is more firm, more into
The probability for situations such as air inlet pipe 120 is fallen off, rigging position deviates is reduced to one step, so that air inlet pipe 120 and valve seat 110
Welding efficiency it is higher so that the assembly efficiency of expansion valve 100 is higher.
Further, in the present embodiment, the gap width between the outer wall and annular groove 114 of air inlet pipe 120 is air inlet
/ 10th of 120 wall thickness of pipe.
Since the solder of molten condition has mobility, therefore in the gap between the outer wall of air inlet pipe 120 and annular groove 114
The thickness of solder layer and the outer wall of air inlet pipe 120 and annular groove 114 between gap it is of same size.If the thickness mistake of solder layer
Thickness not only makes the welding of air inlet pipe 120 and valve seat 110 need more solders, will cause the waste of solder, and also may be used
The solder that can have molten condition grills thoroughly the tube wall of air inlet pipe 120 and enters the feelings polluted in air inlet pipe 120 to valve seat 110
Condition；If the thickness of solder layer is excessively thin, expansion valve 100 is easy to cause air inlet pipe 120 to divide with valve seat 110 because of reasons such as external force
From so that welding between air inlet pipe 120 and valve seat 110 and insecure.Therefore, by the outer wall of air inlet pipe 120 and annular groove 113
Between the width in gap be set as 1/10th of 120 wall thickness of air inlet pipe so that between air inlet pipe 120 and annular groove 113
The thickness of solder layer is relatively mild, can be under the premise of the stability for guaranteeing to weld between air inlet pipe 120 and valve seat 110, effectively
Ground avoids solder waste, so that the welding effect between air inlet pipe 120 and valve seat 110 is more preferable.
Further, in the present embodiment, the depth of annular groove 114 is greater than the width of 2 times of annular grooves 114.So air inlet
The length that pipe 120 is set in annular groove 114 is longer, so that air inlet pipe 120 and the contact area of valve seat 110 are bigger, from
And make the connection between air inlet pipe 120 and valve seat 110 more secured.Therefore, the depth of annular groove 113 is set greater than 2
The width of annular groove 113 again further reduced air inlet pipe so that air inlet pipe 120 and the connection of valve seat 110 are more secured
120 and during valve seat 110 conveys into the burner hearth of continuous tunnel furnace, air inlet pipe is caused due to tunnel conveyer belt vibration etc.
The probability that 120 positional shifts, situations such as falling off occur, further improves the welding efficiency of air inlet pipe 120 Yu valve seat 110, into
And make the assembly efficiency of expansion valve 100 higher.
Referring to Fig. 2 to Fig. 4, further, in the present embodiment, air inlet mounting surface 111 is provided with and annular groove
The welding slot 117 of 114 connections.Welding slot 117 is set to the outer peripheral edge of annular groove 114 and along the circumferentially extending of annular groove 114.By
There is mobility in the solder of molten condition, if solder is more, the solder of molten condition will from the outer wall of air inlet pipe 120 with
It is overflowed in the gap formed between annular groove 114.And welding slot 117 is mainly used for collecting the solder overflowed when welding, to avoid
The surface of valve seat 110 is polluted.
Further, in the present embodiment, the depth of welding slot 117 is less than the depth of annular groove 114.Welding slot 117
It is to play a part of to collect the solder overflowed, under normal circumstances, the solder that when welding overflows is less, if by the depth of welding slot 117
What is be arranged is too deep, not only causes the waste in 117 space of welding slot, also will affect the intensity of valve seat 110, and then influence valve seat 110
Service life.Therefore, the depth of welding slot 117 is set smaller than to the depth of annular groove 114, so that valve seat 110 is guaranteeing
The solder that can avoid overflowing while its intensity pollutes valve seat 110.
Further, in the present embodiment, the open edge of annular groove 114 is provided with transition chamfering 118.Transition chamfering
118 setting, so that being easier to be aligned with annular groove 114 when air inlet pipe 120 is installed, so that the installation of air inlet pipe 120 is more
For convenience of quick.
In the present embodiment, the edge shape of 115 side wall of boss and the edge shape of 120 inner wall of air inlet pipe match.Cause
This, be bonded between the inner wall and the side wall of boss 115 of air inlet pipe 120 it is closer so that air inlet pipe 120 and valve seat 110
Between installation it is more secured.
Further, in the present embodiment, annular groove 113 is annular groove.That is, annular groove 113 is along perpendicular to its axis
The cross sectional shape in line direction is circular ring shape.The edge shape phase of the outer edge shape of 115 side wall of boss and 120 inner wall of air inlet pipe
Match.Therefore, supporting more closely between the side wall of the inner wall and boss 115 of air inlet pipe 120 so that air inlet pipe 120 with
Installation between annular groove 113 is more secured.
Referring to Fig. 1, in the present embodiment, air inlet pipe 120 and air inlet 113 are coaxially disposed.I.e. air inlet pipe 120 with
Air inlet 113 is perfectly aligned, so that the circulation between air inlet pipe 120 and valve seat 110 is maximum, effectively increases air-conditioning system
Refrigeration and heating effect.
Referring to Fig. 1 and Fig. 3, further, in the present embodiment, before welding, solder be the first weld-ring 140 and
Second weld-ring 150.First weld-ring 140 and the second weld-ring 150 are sheathed on one end of air inlet pipe 120 and escape pipe 130 respectively.
Referring to Figure 4 together, weld-ring is a kind of welding material, and fusion temperature is lower.When air inlet pipe 120 and escape pipe
130 need with valve seat 110 weld when, it is only necessary to the first weld-ring 140 and the second weld-ring 150 are heated so that the first weld-ring 140 and
Second weld-ring 150 forms the weldering of molten condition between air inlet pipe 120 and valve seat 110 and between escape pipe 130 and valve seat 110
The welding of air inlet pipe 120 and escape pipe 130 and valve seat 110 can be completed in material, the solder cooled and solidified of molten condition.Therefore,
The setting of one weld-ring 140 and the second weld-ring 150, so that the welding of air inlet pipe 120 and escape pipe 130 is more convenient.First
Weld-ring 140 and the second weld-ring 150 are generally by copper-tin alloy, yellow gold, leypewter etc..
Further, in the present embodiment, the first weld-ring 140 and the second weld-ring 150 are copper and tin weld-ring.Since copper and tin is closed
Fitting has the characteristics such as fusing point is low, intensity is big, so as to all have that fusing point is low, intensity is big etc. excellent for the first weld-ring 140 and the second weld-ring 150
Point.Therefore, copper and tin weld-ring is set by the first weld-ring 140 and the second weld-ring 150, so that air inlet pipe 120 and escape pipe 130 weld
It is larger with the strength of joint of valve seat 110 afterwards, so that air inlet pipe 120 and escape pipe 130 and the connection of valve seat 110 are more firm
Gu.
Above-mentioned air-conditioning system and its expansion valve 100, the inner wall and boss 115 of air inlet pipe 120 are interference fitted, so that air inlet pipe
120 are fixedly connected with valve seat 110.Therefore, before valve seat 110 and air inlet pipe 120 enter continuous tunnel furnace, by air inlet pipe 120 with mistake
The mode of cooperation of being full of is fixed in annular groove 114, so that air inlet pipe 120 and the connection of valve seat 110 are more secured, is greatly reduced
During air inlet pipe 120 and valve seat 110 are conveyed into the burner hearth of continuous tunnel furnace, caused due to tunnel conveyer belt vibration etc.
The probability that 120 positional shift of air inlet pipe, situations such as falling off occur, effectively improves the weldering between air inlet pipe 120 and valve seat 110
Efficiency is connect, so that expansion valve 100 has higher assembly efficiency.Therefore, include above-mentioned expansion valve 100 air-conditioning system dress
It is also higher with efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of expansion valve, which is characterized in that including,
Valve seat, has air inlet mounting surface and outlet mounting surface, and the air inlet mounting surface offers air inlet, the outlet mounting surface
The venthole being connected to the air inlet is offered, the air inlet mounting surface offers annular groove along the circumferential direction of the air inlet,
The annular groove surrounds and forms a boss；
Air inlet pipe, one end are contained in the annular groove and are connected to the air inlet, and the boss is arranged in the air inlet pipe
And it is interference fitted with the inner wall of the air inlet pipe；And
Escape pipe, one end are connected to the venthole.
2. expansion valve according to claim 1, which is characterized in that the wall thickness of the air inlet pipe is less than the width of the annular groove
Degree.
3. expansion valve according to claim 2, which is characterized in that between the outer wall of the air inlet pipe and the annular groove
Gap width is 1/10th of the air inlet thickness of pipe wall.
4. expansion valve according to claim 2, which is characterized in that the depth of the annular groove is greater than 2 times of the annular
The width of slot.
5. expansion valve according to claim 1, which is characterized in that the air inlet mounting surface is offered to be connected with the annular groove
Logical welding slot, the welding slot are set to the outer peripheral edge of the annular groove and along the circumferentially extendings of the annular groove.
6. expansion valve according to claim 5, which is characterized in that the depth of the welding slot is less than the depth of the annular groove
Degree.
7. expansion valve according to claim 1, which is characterized in that the open edge of the annular groove offers transition and falls
Angle.
8. expansion valve according to claim 1, which is characterized in that the annular groove is annular groove, the boss it is outer
The edge shape of edge shape and the air inlet inside pipe wall matches.
9. expansion valve according to claim 1, which is characterized in that the air inlet pipe and the air inlet are coaxially disposed.
10. a kind of air-conditioning system, which is characterized in that including expansion valve as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821427088.5U CN209100732U (en) | 2018-08-31 | 2018-08-31 | Air-conditioning system and its expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821427088.5U CN209100732U (en) | 2018-08-31 | 2018-08-31 | Air-conditioning system and its expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100732U true CN209100732U (en) | 2019-07-12 |
Family
ID=67151765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821427088.5U Active CN209100732U (en) | 2018-08-31 | 2018-08-31 | Air-conditioning system and its expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508621A (en) * | 2022-01-26 | 2022-05-17 | 广东威灵电机制造有限公司 | Valve body assembly and electronic expansion valve |
| CN114607783A (en) * | 2022-01-26 | 2022-06-10 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
-
2018
- 2018-08-31 CN CN201821427088.5U patent/CN209100732U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508621A (en) * | 2022-01-26 | 2022-05-17 | 广东威灵电机制造有限公司 | Valve body assembly and electronic expansion valve |
| CN114607783A (en) * | 2022-01-26 | 2022-06-10 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
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