CN209444826U - A kind of sealing structure of electronic valve - Google Patents
A kind of sealing structure of electronic valve Download PDFInfo
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- CN209444826U CN209444826U CN201920027853.2U CN201920027853U CN209444826U CN 209444826 U CN209444826 U CN 209444826U CN 201920027853 U CN201920027853 U CN 201920027853U CN 209444826 U CN209444826 U CN 209444826U
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- sealing
- sealing element
- electronic valve
- spool
- adapter tube
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Abstract
The utility model discloses a kind of sealing structures of electronic valve, including sealing element, spool and adapter tube, the sealing element has the arrival end connecting with the spool and the outlet end with the adapter tube connection, it is characterized in that the arrival end of the sealing element and the spool are interference fitted, the first sealing area is formed；The inner wall of the sealing element is equipped with cricoid convex ribs, and the outer peripheral surface interference fit of the convex ribs and adapter tube one end forms the second sealing area.A kind of sealing structure of electronic valve of the utility model, the sealing element form dual-seal by least two sealing areas and the spool and adapter tube, the sealing performance of product are substantially increased, so that it is guaranteed that the fluid media (medium) in runner will not leak.
Description
Technical field
The utility model relates to used in technical field of new energy more particularly to new-energy automobile heat management system
Electronic valve product scope, specifically a kind of sealing structure of electronic valve.
Background technique
Electronic valve is the automatic foundamental element for controlling fluid, and structure includes valve body, spool, adapter tube and power dress
It sets.The adapter tube is arranged on valve body, is used for medium introducing and exits valve body.The spool is set to valve body lower portion, is
The execution part of electronic valve.The power device includes motor, gear train and control circuit board, is arranged on valve body top.Electricity
Sub- valve is by motor driven, and power transmission to poppet shaft, band movable valve plug rotates in valve body, and spool is equipped with related runner,
By the rotation angle of adjusting spool, the switching of electronic valve runner and the control of flow are carried out, to control new energy cooling system
The flow direction and flow in the fluid media (medium) circuit in system.
It is provided with sealing element between spool and adapter tube inside electronic valve, it is close for the runner between spool and adapter tube
Envelope, it is desirable that during Spool rotating, also to realize the sealing between spool and sealing element, sealing element and adapter tube, prevent spool
In the anti-icing fluid dielectric leakage to valve body inside runner formed with adapter tube, leads to leakage in electronic valve and fail, therefore sealing element two
End needs while realizing sealing, so requiring for the sealing performance of sealing element very high.In addition, since spool works normally shape
Under state, regular rotation is needed, sealing element causes electronic valve to leak using will appear abrasion over time, therefore sealing element and valve
Core mating surface needs specially treated, with the small and wear-resisting material of coefficient of friction, the service life of Lai Zengjia electronics water valve.
For this purpose, 2007/0267588 A1 of U.S. Patent application US disclose it is a kind of for sealing the sealing of flow control valve
Part.The sealing element includes the outlet with the entrance of volume control device cooperation and valve body cooperation, and is formed on sealing element wall
Wrinkle.The wrinkle are similar to accordion or bellows structure, when the pressure difference between the inside and outside wall of sealing element increases, the wrinkle
Sealing element is opened along its length.This opening of sealing element forces the entrance of sealing element to be biased to spool, while sealing element
Valve body or adapter tube are biased in outlet, thus the entrance and exit of sealing element tightly pushes down the component of corresponding connection, to play
Prevent the effect of leakage.
The sealing element of above structure, the opening of wrinkle part are realized by the pressure difference of sealing element surfaces externally and internally.When
Electronic valve is in and breaks or when small flow status, since fluid media (medium) is divided into two-way in the runner of spool, wherein all the way from connecing
Pipe outflow, another way flow into valve body in the chamber of valve outlet, thus the pressure difference of sealing element surfaces externally and internally is larger, can be with
Play sealing effect.But when electronic valve is in big flow or full open position, the pressure difference of sealing element surfaces externally and internally compared with
It is small, it is possible to there is leakage phenomenon.
Summary of the invention
To be solved in the utility model is above-mentioned technical problem of the existing technology, it is desirable to provide a kind of follow-on electricity
The sealing structure of sub- valve.
To solve the above problems, the utility model uses a kind of following technical scheme: sealing structure of electronic valve, including close
Sealing, spool and adapter tube, the sealing element have the arrival end connecting with the spool and the outlet with the adapter tube connection
End, it is characterised in that the arrival end of the sealing element and the spool are interference fitted, and form the first sealing area；The sealing
The inner wall of part is equipped with cricoid convex ribs, and the outer peripheral surface interference fit of the convex ribs and adapter tube one end forms the second sealing area.
A kind of sealing structure of electronic valve of the utility model, the sealing element pass through at least two sealing areas and institute
The spool and adapter tube stated form dual-seal, substantially increase the sealing performance of product, so that it is guaranteed that the fluid media (medium) in runner
It will not leak.
As the improvement of the utility model, the convex ribs are two or more.The gap of adjacent convex ribs is greater than
1mm.While increasing the sealing performance of electronic valve, it will not influence the elasticity of sealing element, the torsion of spool made to be maintained at smaller
In the range of.
The magnitude of interference of the convex ribs is not less than 5% as a further improvement of the utility model,.
As the further improvement of the utility model, the inner wall of the sealing element is tapered, adapter tube one connected to it
The outer peripheral surface at end is also in corresponding taper.The tapered surface is capable of the connection of preferably guide seal and adapter tube.
As the further improvement of the utility model, the magnitude of interference that arrival end and the spool of the sealing element cooperate is not low
In 5%.
As the further improvement of the utility model, the arrival end of the sealing element has the phase with the spool shape
The entrance face of adaptation is covered with wear-resisting, lubricant coating thereon.
The entrance face is arcwall face, paraboloid or saddle camber.
Wear-resisting, the lubricant coating can use ceramic material, such as Al2O3Ceramics.The ceramic material have hardness it is high,
The good advantage of wearability.In Al2O3Middle addition TiO2And ZrO2Equal ceramic materials and solid lubricant are conducive to improve its friction mill
Damage performance.
Wear-resisting, the lubricant coating can also use self-lubricating material, such as graphite and Mo2S based self-lubricating material.In order to
It is more preferable to play graphite and Mo2The friction and wear behavior of S can also be used using both materials as the composite material of base.
As the further improvement of the utility model, reinforcing rib is additionally provided on the outer wall of the sealing element.Described adds
Strengthening tendons can increase the compressed reaction force of sealing element, and the resistance to compression for increasing sealing element becomes ability, prevent seal clearance and
The problem of causing sealing performance to decline, to further increase the reliability of sealing.
As the further improvement of the utility model, the reinforcing rib is a plurality of.The reinforcing rib can be in week
It, can also be in axial setting to setting.It is preferred that latter configuration, and a plurality of shaft orientation reinforcing rib is circumferentially uniformly distributed.
As the further improvement of the utility model, described adapter tube one end is additionally provided with an annular sealing plane, should
The outlet end of sealing plane and the sealing element cooperates, and forms third sealing area.The sealing element by three seal
Region forms multi-sealed with the spool and adapter tube, the sealing performance of product is further improved, so that it is guaranteed that in runner
Fluid media (medium) will not leak.
As the further improvement of the utility model, the sealing element uses rubber material.Preferably, described close
Sealing uses EPDM.EPDM, that is, ethylene propylene diene rubber is the terpolymer of ethylene, propylene and non-conjugated diene hydrocarbon, mainly
Performance advantage is following several respects:
(1) cost performance is high, and it is the most light common rubber of raw rubber density that raw rubber density, which only has 0.86~0.90kg/m3,；And it can
A large amount of fillings are to reduce sizing material cost.
(2) excellent anti-aging property, resistance to weather, resistance to ozone, resistance to daylight, heat-resisting, water-fast, resistance to vapor, UV resistant,
The ageing properties such as radiation hardness, with other unsaturated polydienes such as NR, SBR, BR, NBR and CR etc. and used time, EPDM
It can play the role of macromolecule antioxidant or anti-aging agent.
(3) excellent chemical-resistant resistance characteristic, acid and alkali resistance, detergent, vegetable and animals oils, alcohol, ketone etc.；Outstanding is water-fast, resistance to
Superheated water, water-fast steam performance；Resistance to polar oil performance.
(4) excellent insulation performance, volume resistivity 1016Qcm, 30~40MV/m of breakdown voltage, dielectric constant
(1kHz, 20 DEG C) 2.27.
(5) Applicable temperature range is wide, minimum to use temperature -40~-60 DEG C, can use under the conditions of 130 DEG C for a long time.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the sealing structure part of the electronic valve of the utility model.
Fig. 2 is the perspective view of the utility model sealing element.
Fig. 3 is the structural schematic diagram of the utility model sealing element.
Fig. 4 is the schematic diagram of the utility model sealing structure.
In figure, 1- sealing element, 2- valve body, 3- adapter tube, 4- spool, the first sealing area of 5-, the second sealing area of 6-, 7- the
Three sealing areas, 8- arrow；
The outer wall of 101- sealing element, the external reinforcing muscle of 102- sealing element, the inside convex ribs of 103- sealing element, 104- are close
The inner wall of sealing, the arrival end of 105- sealing element, the outlet end of 106- sealing element, the entrance face of 107- sealing element, 108- are close
The exit end face of sealing, the runner of 109- sealing element；
The intracorporal spool accommodating cavity of 201- valve, the adapter tube connectivity port of 202- valve body；
The annular flange of 301- adapter tube, the ring packing plane of 302- adapter tube, one end of 303- adapter tube, 304- take over one end
Outer peripheral surface, the runner in 305- adapter tube, on the 306- adapter tube and welding position of valve body.
Specific embodiment
Referring to Fig.1, the sealing structure of a kind of electronic valve of the utility model, including valve body 2, sealing element 1, spool 4 and connect
Pipe 3.In order to which the structure feature of each section is better described, Fig. 1 first removes sealing element 1.Spool is equipped in the valve body 2 to hold
Set chamber 201, and adapter tube connectivity port 202.The spool 4 is placed in the accommodating cavity 201.The adapter tube 3 and valve body
On adapter tube connectivity port 202 end welding.
Runner (not shown) is offered in the spool 4.Fluid media (medium) presses direction shown in arrow 8 from spool 4
Runner flow direction adapter tube 3 in runner 305.
The top of the spool 4 and the gear train of power device interlock, and can turn around its mandrel under the drive of gear
It is dynamic.
When the runner 305 in the runner of spool 4 and adapter tube 3 is not turned on, electronic valve is in close state.
After spool 4 turns over certain angle, runner is begun to turn on 305 part of runner in adapter tube 3.Continue to rotate valve
The area that core 4, the runner of spool 4 and the runner 305 in adapter tube 3 are connected increases, and the flow in downstream also increases with it.
Spool 4 is continued to rotate, when the runner 305 in the runner of spool 4 and adapter tube 3 is in same straight line, the two is led
Logical area is maximum, and electronic valve is in maximum stream flow state at this time.
By the rotational angle of control valve core 4, the switching and flow control of electronic valve may be implemented.
In order to achieve the purpose that accurate flow control, the fluid media (medium) entered in adapter tube runner 305 cannot flow back into valve
In the spool accommodating cavity 201 of body.Therefore, it is necessary to sealing element 1 is arranged between spool 4 and adapter tube 3.Meanwhile in order to guarantee to seal
Sealing performance between part 1 and adapter tube 3, the adapter tube 3 also improve.
One end 304 of the adapter tube 3 is inserted into the adapter tube connectivity port 202 of valve body.Adapter tube one end 304 can be round tube
Structure is also possible to the conical tube structure with certain taper.The outer peripheral surface 303 for taking over one end 304 is close as one with sealing element 1
Cover, it is preferred to use circular conical surface can preferably import sealing element 1 and form close contact.The thickness for taking over one end 304 can be with
It is identical, it can also gradually become smaller.
It takes on the outer peripheral surface of one end 304 and is additionally provided with annular flange 301.The annular flange 301 is located at adapter tube one end 304
Between welding position 306 between end face 307 and adapter tube and valve body.Planar annular 302 structure of the flange 301 towards spool 4
At another sealing surface of adapter tube 3 and sealing element 1.
Referring to Fig. 2, Fig. 3 and Fig. 4, the sealing element 1 of the utility model have the arrival end 105 connect with the spool 4 and
The outlet end 106 that the adapter tube 3 connects, the arrival end 105 of the sealing element and the spool 4 are interference fitted, and form first
Sealing area 5；The inner wall of the sealing element 1 is equipped with cricoid convex ribs 103, the outer peripheral surface 303 of the convex ribs 103 and adapter tube one end
Interference fit forms the second sealing area 6；The outlet end 108 of the sealing element and the ring packing plane 302 of adapter tube cooperate,
Form third sealing area 7.
A kind of sealing structure of the electronic valve of the utility model, the sealing element 1 by three sealing areas with it is described
Spool 4 and adapter tube 3 formation it is multi-sealed, the sealing performance of product is substantially increased, so that it is guaranteed that the fluid media (medium) in runner
It will not leak.
The convex ribs 103 are two or more.The gap of adjacent convex ribs 103 is greater than 1mm.Increasing electronic valve
While sealing performance, the elasticity of sealing element will not influence, be maintained at the torsion of spool 4 in lesser range.The convex ribs
103 are not less than 5% with the magnitude of interference that adapter tube outer peripheral surface 303 cooperates.
The inner wall 104 of the sealing element is adapted with the structure of pipe ends.Preferably, the inner wall 104 of the sealing element
It is tapered.Tapered surface is capable of the connection of preferably guide seal 1 and adapter tube 3.
The electronic valve can use any standard structure, such as butterfly valve.The spool 4 can be any shape,
It is including but not limited to cylindrical or spherical.The arrival end 105 of the sealing element have with 4 shape of spool it is compatible enter
Mouth end face 107, such as arcwall face, paraboloid or saddle camber.The arrival end of the sealing element and the magnitude of interference that spool cooperates be not low
In 5%.
Wear-resisting, lubricant coating is covered on the entrance face 107 of the sealing element.The wear-resisting, lubricant coating can reduce sealing
Frictional force between part 1 and spool 4 extends the service life of electronic valve.Simultaneously make the torsion of spool be maintained at one it is lesser
In range.
Wear-resisting, the lubricant coating can use any material for meeting performance requirement.Preferably, it is described it is wear-resisting,
Lubricant coating uses ceramic material, such as Al2O3Ceramics.The ceramic material has the advantages that hardness is high, wearability is good.In Al2O3In
TiO is added2And ZrO2Equal ceramic materials and solid lubricant are conducive to improve its friction and wear behavior.
Wear-resisting, the lubricant coating can also use self-lubricating material, such as graphite and Mo2S based self-lubricating material.In order to
It is more preferable to play graphite and Mo2The friction and wear behavior of S can also be used using both materials as the composite material of base.
Reinforcing rib 102 is additionally provided on the outer wall of the sealing element 1.After the reinforcing rib 102 can increase the compression of sealing element 1
Reaction force, increase sealing element 1 resistance to compression become ability, prevent seal clearance and cause sealing performance decline ask
Topic, to further increase the reliability of sealing.
The reinforcing rib 102 arrives a plurality of for 1.The reinforcing rib 102 can also be set in circumferential setting in axial
It sets.In the present embodiment, the reinforcing rib 102 is a plurality of, is evenly distributed.Every reinforcing rib 102 is in axial setting.
The sealing element 1 uses elastic material.Preferably, 1 rubber material of sealing element.In present embodiment
In, the sealing element 1 uses EPDM, and the utility model is made to have cost performance height, excellent anti-aging property, excellent resistance toization
Learn drug characteristic, excellent insulation performance and the wide characteristic of Applicable temperature range.
It is understood that above-described embodiment is the explanation to the utility model, rather than to the utility model
Limitation, any utility model without departing from the utility model in essence scope are created, and the protection of the utility model is each fallen within
Within the scope of.
Claims (11)
1. a kind of sealing structure of electronic valve, including sealing element, spool and adapter tube, the sealing element has to be connected with the spool
The arrival end connect and the outlet end with the adapter tube connection, it is characterised in that the arrival end of the sealing element and the spool mistake
It is full of cooperation, forms the first sealing area；The inner wall of the sealing element is equipped with cricoid convex ribs, and the convex ribs are outer with adapter tube one end
Circumferential surface interference fit, forms the second sealing area.
2. a kind of sealing structure of electronic valve as described in claim 1, it is characterised in that the convex ribs are two or two
More than.
3. a kind of sealing structure of electronic valve as claimed in claim 2, it is characterised in that the gap of adjacent convex ribs is greater than 1mm.
4. a kind of sealing structure of electronic valve as claimed in claim 3, it is characterised in that the magnitude of interference of the convex ribs is not less than
5%。
5. a kind of sealing structure of electronic valve as described in claim 1, it is characterised in that the inner wall of the sealing element is tapered,
The outer peripheral surface of adapter tube one end connected to it is also in corresponding taper.
6. a kind of sealing structure of electronic valve as described in claim 1, it is characterised in that the arrival end and valve of the sealing element
The magnitude of interference of core cooperation is not less than 5%.
7. a kind of sealing structure of electronic valve as described in claim 1, it is characterised in that the arrival end of the sealing element has
With the compatible entrance face of the spool shape, it is covered with wear-resisting, lubricant coating thereon.
8. a kind of sealing structure of electronic valve as described in claim 1, it is characterised in that also set on the outer wall of the sealing element
There is reinforcing rib.
9. a kind of sealing structure of electronic valve as claimed in claim 8, it is characterised in that the reinforcing rib is a plurality of, is in axis
To setting.
10. a kind of sealing structure of electronic valve as claimed in claim 9, it is characterised in that a plurality of reinforcing rib is circumferentially uniformly distributed.
11. a kind of sealing structure of electronic valve as described in claim 1 ~ 10 any one, it is characterised in that the adapter tube one
End is additionally provided with an annular sealing plane, and the outlet end cooperation of the sealing plane and the sealing element forms third seal area
Domain.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027853.2U CN209444826U (en) | 2019-01-08 | 2019-01-08 | A kind of sealing structure of electronic valve |
| PCT/CN2020/070301 WO2020143550A1 (en) | 2019-01-08 | 2020-01-03 | Double sealing structure of electronic valve, sealing structure of electronic valve, and electronic valve with static sealing structure |
| DE112020000356.6T DE112020000356T5 (en) | 2019-01-08 | 2020-01-03 | Double sealing structure of an electrovalve, sealing structure of an electrovalve, and electrovalve of a static sealing structure |
| US17/370,754 US11585443B2 (en) | 2019-01-08 | 2021-07-08 | Double sealing structure of electronic valve, sealing structure of electronic valve, and electronic valve with static sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027853.2U CN209444826U (en) | 2019-01-08 | 2019-01-08 | A kind of sealing structure of electronic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444826U true CN209444826U (en) | 2019-09-27 |
Family
ID=68016001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920027853.2U Active CN209444826U (en) | 2019-01-08 | 2019-01-08 | A kind of sealing structure of electronic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595349A (en) * | 2019-01-08 | 2019-04-09 | 浙江银轮机械股份有限公司 | A kind of sealing structure of electronic valve |
| WO2020143550A1 (en) * | 2019-01-08 | 2020-07-16 | 浙江银轮机械股份有限公司 | Double sealing structure of electronic valve, sealing structure of electronic valve, and electronic valve with static sealing structure |
-
2019
- 2019-01-08 CN CN201920027853.2U patent/CN209444826U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595349A (en) * | 2019-01-08 | 2019-04-09 | 浙江银轮机械股份有限公司 | A kind of sealing structure of electronic valve |
| WO2020143550A1 (en) * | 2019-01-08 | 2020-07-16 | 浙江银轮机械股份有限公司 | Double sealing structure of electronic valve, sealing structure of electronic valve, and electronic valve with static sealing structure |
| US11585443B2 (en) | 2019-01-08 | 2023-02-21 | Zhejiang Yinlun Machinery Co., Ltd. | Double sealing structure of electronic valve, sealing structure of electronic valve, and electronic valve with static sealing structure |
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