CN109611597A - A kind of electronic valve - Google Patents
A kind of electronic valve Download PDFInfo
- Publication number
- CN109611597A CN109611597A CN201910016607.1A CN201910016607A CN109611597A CN 109611597 A CN109611597 A CN 109611597A CN 201910016607 A CN201910016607 A CN 201910016607A CN 109611597 A CN109611597 A CN 109611597A
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- end cover
- laser welding
- electronic valve
- 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
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of electronics water valves, including valve body, upper end cover and lower cover, valve body top is connect with the upper end cover, and valve body lower portion is connect with the lower cover, it is characterised in that the upper end cover and/or lower cover is fixed by laser welding and the valve body；Also, in two components of laser welding, one of component uses translucent material, and another component uses light absorbent.A kind of electronics water valve of the invention, end cap are connect by laser welding with the valve body, and since laser welding is the welding of passive state, product surface will not generate scar, junction fracture or have the common phenomena such as slight crack, and product qualification rate is high, good seal performance；Meanwhile being generated in the welding process without welding slag, the appearance of product is good, and can guarantee the size of product.
Description
Technical field
The present invention relates to electronics used in technical field of new energy more particularly to new-energy automobile heat management system
Valve product scope, specifically a kind of electronic valve.
Background technique
Electronic valve product is for controlling the flow direction and uninterrupted in fluid media (medium) circuit in new energy cooling system.It is existing
Electronic valve include valve component, volume control device and power device.The valve component include valve body, upper end cover, under
End cap and adapter tube；Valve body top is connect with upper end cover, and valve body lower portion and lower cover and adapter tube connect.The power device includes
Gear train, motor and control panel are placed in the space of upper end cover and the formation of valve body top.The volume control device includes
Spool is placed in the space of lower cover and valve body lower portion formation.External control signal is input to the control panel of power device, drives
Dynamic motor work, motor drives gear train to rotate again, the output gear of power transmission to gear train；Output gear shaft and flow
The spool of control device cooperates, and drives Spool rotating, and valve core inside is provided with runner, passes through the variation of spool angle, Lai Shixian
The switching of runner between spool and valve body controls the flow direction and stream in the fluid media (medium) circuit in new energy cooling system with this
Amount.
Existing electronic valve product, volume control device and power device are two skies for being separately positioned on valve body top and the bottom
In, it needs individually to seal.The valve body lower portion and lower cover for encapsulating power device, are usually used ultrasonic technique and are welded on one
It rises and is sealed；And encapsulate and be connected with two methods between the valve body top of power device and upper end cover: first is that be super
Sound wave welding places a rubber ring, so second is that opening up a groove around upper surface in valve body top loop in the groove
Upper end cover is fixed on by tapping screw by valve body top afterwards.The groove and rubber ring pass through upper end using interference fit
The mode of lid compressing rubber circle seals to realize.
Ultrasonic bonding is the body surface that the welding of two need is transmitted to using high-frequency vibration wave, in the case where pressurization,
Make two body surface phase mutual friction and form the fusion between molecular layer, is a kind of quick, effective assembly technology.However,
Using ultrasonic welding process, there are still following defects:
1, pad surface is easy product surface caused by high-frequency mechanical vibration generates scar, junction is broken or has slight crack etc.
Common phenomenon, sealing performance not can guarantee, and product qualification rate is low.
2, welding slag generation is had when sound wave welds, and influences the cleannes of product, while will affect the appearance of product.
3, ultrasonic welding process use pressurized treatments, thus product positioning and precision not can guarantee.
By the way of fastener connection, need to open up groove on valve body, Valve Block Mould is more complicated, uses tapping screw
After fixed end cap, the size of screw torsion, and the fit dimension tolerance between part, it can all influence the leakproofness of product
Can, and rubber ring can have aging for a long time, seriously affect the service life of electronic valve.
Summary of the invention
The present invention is to solve above-mentioned technical problem of the existing technology, it is desirable to provide a kind of follow-on electronics
Valve improves the overall performance of product by laser welding process.
In order to solve the above technical problems, the invention adopts the following technical scheme: a kind of electronic valve, including valve body, upper end cover
And lower cover, valve body top are connect with the upper end cover, valve body lower portion is connect with the lower cover, it is characterised in that described
Upper end cover and/or lower cover fixed by laser welding and the valve body；Also, in two components of laser welding,
In component use translucent material, another component uses light absorbent.
A kind of electronic valve of the invention, end cap is connect by laser welding with the valve body, since laser welding is nothing
The welding of pressure condition, product surface will not generate scar, junction fracture or have the common phenomena such as slight crack, and product qualification rate is high,
Good seal performance；Meanwhile being generated in the welding process without welding slag, the appearance of product is good, and can guarantee the size of product.
The upper end cover and lower cover can select one and be fixed by laser welding and the valve body, and another component is still adopted
It is connected with ultrasonic bonding or fastener.Preferably, the upper end cover and lower cover pass through laser welding and the valve
Body is fixed.
As an improvement of the present invention, the inner surface of the upper end cover is bonded with the upper surface of valve body, and fitting position is sharp
Flush weld junction.
As a further improvement of the present invention, the upper surface of the valve body have outside flange, can increase valve body with
Contact area between upper end cover is conducive to position and increase bonding area.
As further improvement of the invention, the inner surface of the lower cover is bonded with the lower end surface of valve body, fitting
Position is Laser Welding junction.
As further improvement of the invention, the lower end surface of the valve body has outside flange, can increase valve body
Contact area between lower cover is conducive to position and increase bonding area.
Pass through a pair of of alignment pin as further improvement of the invention, between the valve body top and upper end cover and determines
Positioning is realized in the cooperation of position axis hole.
As further improvement of the invention, a pair of of alignment pin, one of alignment pin is circle, separately
One is ellipse, and the pair of positioning shaft hole is the circular hole that diameter is slightly larger than pin shaft, can avoid positioning.
As further improvement of the invention, the valve body uses light absorbent, and the upper end cover and lower cover are adopted
Use translucent material.
As further improvement of the invention, the valve body uses PA plastics, PPA plastics or PPS plastics.
As further improvement of the invention, the upper end cover and lower cover use PA9T plastics, and light transmission is added
Carrier, light transmittance are greater than 20%.Preferably, the light transmittance of cap material is 50% ~ 60%.
It is highly preferred that the valve body and end cap is all made of identical material, and light-transparent carrier is added in cap material,
Certain translucency is made it have, the requirement of laser welding is met.Since the two pieces component materials of laser welding are identical, fusing point is got over
Close, then heat seal strength is stronger.
As a further improvement of the present invention, the laser welding is that heat-conduction-type welds or laser deep penetration welding connects.
Wherein heat-conduction-type laser welding principle are as follows: work surface is heated in laser emission, and surface heat passes through heat transfer
It internally spreads, by laser parameters such as width, energy, peak power and the repetition rates of control laser pulse, melts workpiece,
Form specific molten bath.
Laser Deep Penetration Welding generally uses continuous laser light beam to complete the connection of material, and energy conversion machine system is to pass through
" aperture " structure is completed.Under the irradiation of sufficiently high power density laser, material, which generates, to be evaporated and forms aperture.This is filled
The aperture of full steam almost absorbs whole primary energies like a black matrix, and vestibule inner equilibrium temperature reaches a 2500C DEG C of left side
The right side, heat are passed out from this high temperature hole cavity outer wall, make the plastic molting for surrounding this vestibule surrounding.It is filled in aperture
Light beam irradiates the high-temperature steam that lower wall material continuous evaporation generates, and four wall of aperture surrounds molten plastic, liquid plastic surrounding
Surround solid material (and most conventional welding process and laser conduction welding in, energy is deposited on workpiece surface first,
Then inside is transported to by transmitting).The outer liquid flowing of hole wall and parietal layer surface tension and the intracavitary steam pressure continuously generated in hole
It is locked and remain dynamic equilibrium.Light beam constantly enters aperture, and the material outside aperture is continuously flowing, small as light beam is mobile
Hole is in the stable state of flowing always.That is aperture and round hole wall molten plastic with preceding light guide bundles forward speed
It moves forward, molten plastic fills the gap left after aperture is removed and condenses therewith, and weld seam is then formed.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of upper end cover of the present invention.
Fig. 2 be Fig. 1 along A-A to cut-away view.
Fig. 3 is the structural schematic diagram of lower cover of the present invention.
Fig. 4 is cut-away view of the Fig. 3 along B-B.
Fig. 5 is the structural schematic diagram of valve body of the present invention.
Fig. 6 is a kind of schematic diagram of electronic valve laser welding process of the present invention.
In figure, 1- upper end cover, 2- lower cover, 3- valve body；
The upper end 101- interior surface, 102- upper end cover welding region, 103- upper end cover flange, the first locating shaft of 104- upper end cover
Hole, the second positioning shaft hole of 105- upper end cover, the first positioning convex platform of 106- upper end cover, the second positioning convex platform of 107- upper end cover；
The lower end 201- interior surface, 202- lower cover welding region, 203- runner, 204- reinforcing rib, 205- flange；
The first alignment pin of 301-, the second alignment pin of 302-, 303- valve body top, 304- valve body upper surface, under 305- valve body
End face, 306- valve body upper overturning, 307- valve body lower flange, 308- upper space, 309- lower space.
Specific embodiment
It should be noted that in the description of the present invention, "upper", " under, "left", "right", "top", the instructions such as "bottom" side
To or position be direction based on the figure or positional relationship, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
Referring to Fig.1 ~ 6, a kind of electronic valve of the invention, including valve component, volume control device and power device.It is described
Valve component include valve body 3, upper end cover 1, lower cover 2 and adapter tube；Valve body top 303 is connect with upper end cover 1, valve body lower portion
310 connect with lower cover 2 and adapter tube.The power device includes gear train, motor and control panel, is placed in 1 He of upper end cover
In the space 308 that valve body top 303 is formed.The volume control device includes spool, is placed in lower cover 2 and valve body lower portion
In 310 spaces 309 formed.
Fig. 1 and Fig. 2 show the structural schematic diagram of upper end cover 1 of the invention.The surrounding of the upper end cover 1 has flange
103, preferably to cooperate with the upper periphery of valve body 3.The upper end cover 1 has inner surface 101, and inner surface 101 is close
One circle of flange 103 is welding region 102, which is bonded with the upper surface 304 of valve body 3.
The first positioning shaft hole 104 and the second positioning shaft hole 105, first positioning shaft hole 104 are additionally provided in upper end cover
It is provided in the first positioning convex platform 106 and the second positioning convex platform 107 respectively with the second positioning shaft hole 105.First positioning
Boss 106 and the best gap certain distance of the second positioning convex platform 107, distance is bigger, then positioning performance is better.
It is the structural schematic diagram of lower cover 2 of the present invention shown in Fig. 3 and Fig. 4.The surrounding of the lower cover 2 has flange
205, preferably to cooperate with the lower end peripheral of valve body 3.The center of lower cover 2 is equipped with runner 203.The lower cover 2 has
Inner surface 201, inner surface 201 are welding region 202, the lower end of the welding region 202 and valve body 3 close to a circle of flange 205
Face 305 is bonded.One group of radially-arranged reinforcing rib 204 is additionally provided between welding region 202 and runner 203.
Fig. 5 show the structural schematic diagram of valve body 3 of the present invention.The valve body 3 includes valve body top 303 and valve body lower portion
310。
The valve body top 303 has the upper space 308 of accommodating power device.The upper surface 304 on valve body top 303
With outside flange 306, the contact area between valve body and upper end cover can be increased, be conducive to position and increase welding surface
Product.The upper surface 304 on valve body top and flange 306 are bonded with the welding region 102 of upper end interior surface.Valve body top 303 is also
Equipped with the first alignment pin 301 and the second alignment pin 302.First alignment pin 301 and the second alignment pin 302 is divided
Determining for valve body top 303 and upper end cover 1 is realized with the first positioning shaft hole 104 of upper end cover and the cooperation of the second positioning shaft hole 105
Position.
Preferably, first alignment pin 301 and the second alignment pin 302, one of alignment pin are circle,
, for ellipse, the first positioning shaft hole 104 and the second positioning shaft hole 105 of the upper end cover mutually matched therewith are diameter summary for another
Greater than the circular hole of pin shaft, positioned to avoid crossing.
The valve body lower portion 310 has the lower space 309 of accommodating volume control device.The lower end of valve body lower portion 310
Face 305 has outside flange 307, can increase the contact area between valve body and lower cover, is conducive to position and increase weldering
Junction product.Lower end surface 305 and flange 307 are bonded with the welding region 202 of lower end interior surface.
Electronic valve of the invention, is assembled by method:
1, power device is placed in the upper space 308 of valve body, then upper cover plate 1 is covered into the end on valve body top 303, made
The welding region 102 of upper cover plate inner surface is bonded with the upper surface 304 on valve body top 303；
2, using laser welding, upper cover plate 1 is fixed on valve body top 303；
3, volume control device is placed in the lower space 309 of valve body, then lower cover plate 2 is covered into the end in valve body lower portion 310
Portion is bonded the welding region 202 of lower cover plate inner surface with the lower end surface 305 of valve body lower portion 310；
4, using laser welding, lower cover plate 2 is fixed on valve body lower portion 310.
To ensure that laser can pass through a component and reach the interface of another component, in two components of laser welding,
One of component uses translucent material, and another component uses light absorbent.In the present embodiment, valve body 3 uses extinction material
Material, upper end cover 1 and lower cover use translucent material.
Preferably, valve body 3 is using PA plastics, PPA plastics or PPS plastics.These materials may replace metal material, have good
Good comprehensive performance, including mechanical property, heat resistance, wear resistance, chemical resistance, have anti-flammability, there is release property, no
Release agent must be added, and easy to process, be suitable for modified etc..
Upper end cover and lower cover use PA9T plastics, and light-transparent carrier is added, and light transmittance is greater than 20%.Material transmissivity is high,
Then the thickness of end cap can increase.Conversely, material transmissivity is lower, then the thickness of end cap should not be too large.Comprehensively consider end cap
Intensity and light transmittance, and economy is taken into account, the light transmittance of cap material for 50% ~ 60% to be advisable, and thickness is in ± 0.2 mm model of 2mm
In enclosing.The power of laser welding is 150 watts or so.
A kind of embodiment more optimized, the valve body 3 and upper and lower end caps 1,2 are all made of PA9T plastics, the two choosing
Model can be different.PA9T plastics itself are to belong to light absorbent, can be directly used for the manufacture of valve body 3.For upper and lower end
Light-transparent carrier is added in the PA9T plastics of lid 1,2, makes it have certain translucency, meets the requirement of laser welding.Due to swashing
The two pieces component materials of photocoagulation are identical, and fusing point all at 300 DEG C or so, is greatly improved heat seal strength.And PA9T plastics have
Some high density characteristics, can also improve heat seal strength.
A kind of electronic valve of the invention has the advantages that end cap is connect by laser welding with the valve body,
Since laser welding is the welding of passive state, it is common existing that product surface will not generate scar, junction fracture or have slight crack etc.
As product qualification rate is high, good seal performance；Meanwhile being generated in the welding process without welding slag, the appearance of product is good, and energy
Enough guarantee the size of product.
It is understood that above-described embodiment is the description of the invention, it is rather than limiting the invention, any
Without departing from the innovation and creation within the scope of true spirit, fall within the scope of protection of the present invention.
Claims (13)
1. a kind of electronic valve, including valve body, upper end cover and lower cover, valve body top are connect with the upper end cover, valve body lower portion
It is connect with the lower cover, it is characterised in that the upper end cover and/or lower cover passes through laser welding and the valve body
It is fixed；Also, in two components of laser welding, one of component uses translucent material, and another component uses light absorbent.
2. a kind of electronic valve as described in claim 1, it is characterised in that the upper end cover and lower cover passes through Laser Welding
It connects and is fixed with the valve body.
3. a kind of electronic valve as described in claim 1, it is characterised in that the inner surface of the upper end cover and the upper end of valve body
Face paste is closed, and fitting position is Laser Welding junction.
4. a kind of electronic valve as claimed in claim 3, it is characterised in that the upper surface of the valve body has outside flange.
5. a kind of electronic valve as described in claim 1, it is characterised in that the inner surface of the lower cover and the lower end of valve body
Face paste is closed, and fitting position is Laser Welding junction.
6. a kind of electronic valve as claimed in claim 5, it is characterised in that the lower end surface of the valve body has outside flange.
7. a kind of electronic valve as described in claim 1, it is characterised in that pass through a pair between the valve body top and upper end cover
Positioning is realized in the cooperation of alignment pin and positioning shaft hole.
8. a kind of electronic valve as claimed in claim 7, it is characterised in that a pair of of alignment pin, one of positioning pin
Axis is circle, another is ellipse, and the pair of positioning shaft hole is the circular hole that diameter is slightly larger than pin shaft.
9. a kind of electronic valve as described in claim 1 ~ 8 any one, it is characterised in that the valve body uses light absorbent,
The upper end cover and lower cover use translucent material.
10. a kind of electronic valve as claimed in claim 9, it is characterised in that the valve body using PA plastics, PPA plastics or
PPS plastics.
11. a kind of electronic valve as claimed in claim 9, it is characterised in that the upper end cover and lower cover is moulded using PA9T
Material, and light-transparent carrier is added, light transmittance is greater than 20%.
12. a kind of electronic valve as claimed in claim 9, it is characterised in that the valve body and upper and lower end caps is using same
Light-transparent carrier is added in the material of the upper and lower end caps in material.
13. a kind of electronic valve as described in claim 1, it is characterised in that the laser welding is that heat-conduction-type welds or swashs
The molten welding of optical depth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016607.1A CN109611597A (en) | 2019-01-08 | 2019-01-08 | A kind of electronic valve |
| PCT/CN2019/130793 WO2020143511A1 (en) | 2019-01-07 | 2019-12-31 | Valve, electronic valve, and motor fixing structure for electronic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016607.1A CN109611597A (en) | 2019-01-08 | 2019-01-08 | A kind of electronic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611597A true CN109611597A (en) | 2019-04-12 |
Family
ID=66016412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910016607.1A Pending CN109611597A (en) | 2019-01-07 | 2019-01-08 | A kind of electronic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020143511A1 (en) * | 2019-01-07 | 2020-07-16 | 浙江银轮机械股份有限公司 | Valve, electronic valve, and motor fixing structure for electronic valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4125159B2 (en) * | 2003-03-04 | 2008-07-30 | 株式会社鷺宮製作所 | Electric control valve |
| CN101338827A (en) * | 2007-07-02 | 2009-01-07 | 浙江三花制冷集团有限公司 | Heat pump -type idle call electromagnetic direction changing valve |
| CN201193723Y (en) * | 2008-03-27 | 2009-02-11 | 贾培育 | Intelligent large-capacity totally-enclosed non-abrasion electric rotating four-way change valve |
| CN102345748A (en) * | 2010-07-30 | 2012-02-08 | Smc株式会社 | Multiple manifold valve |
| CN202790712U (en) * | 2012-08-27 | 2013-03-13 | 亚普汽车部件股份有限公司 | Check valve of plastic fuel tank |
| CN103953779A (en) * | 2014-04-11 | 2014-07-30 | 西安交通大学 | Adjustable high-speed straight-stroke electric valve adopting edge cam |
| CN106763812A (en) * | 2017-03-16 | 2017-05-31 | 来生 | It is a kind of with fasten positioning can laser welding control valve |
-
2019
- 2019-01-08 CN CN201910016607.1A patent/CN109611597A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4125159B2 (en) * | 2003-03-04 | 2008-07-30 | 株式会社鷺宮製作所 | Electric control valve |
| CN101338827A (en) * | 2007-07-02 | 2009-01-07 | 浙江三花制冷集团有限公司 | Heat pump -type idle call electromagnetic direction changing valve |
| CN201193723Y (en) * | 2008-03-27 | 2009-02-11 | 贾培育 | Intelligent large-capacity totally-enclosed non-abrasion electric rotating four-way change valve |
| CN102345748A (en) * | 2010-07-30 | 2012-02-08 | Smc株式会社 | Multiple manifold valve |
| CN202790712U (en) * | 2012-08-27 | 2013-03-13 | 亚普汽车部件股份有限公司 | Check valve of plastic fuel tank |
| CN103953779A (en) * | 2014-04-11 | 2014-07-30 | 西安交通大学 | Adjustable high-speed straight-stroke electric valve adopting edge cam |
| CN106763812A (en) * | 2017-03-16 | 2017-05-31 | 来生 | It is a kind of with fasten positioning can laser welding control valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020143511A1 (en) * | 2019-01-07 | 2020-07-16 | 浙江银轮机械股份有限公司 | Valve, electronic valve, and motor fixing structure for electronic valve |
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Application publication date: 20190412 |