CN106369202B - Electric expansion valve - Google Patents
Electric expansion valve Download PDFInfo
- Publication number
- CN106369202B CN106369202B CN201510426786.8A CN201510426786A CN106369202B CN 106369202 B CN106369202 B CN 106369202B CN 201510426786 A CN201510426786 A CN 201510426786A CN 106369202 B CN106369202 B CN 106369202B
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- CN
- China
- Prior art keywords
- waterproof cover
- sealing
- plug
- valve body
- electric expansion
- 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.)
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- 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
- F16K27/12—Covers for 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention provides a kind of electric expansion valve.The electric expansion valve includes valve body (1) and is located at the waterproof cover (2) of valve body (1) outside, accommodating chamber (3) are formed between valve body (1) and waterproof cover (2), sealing-plug (4) are provided in accommodating chamber (3), sealing-plug (4) and/or waterproof cover (2) form the channel of connection accommodating chamber (3) and exterior space, when valve body (1) completes installation, valve body (1) squeezes sealing-plug (4) and blocks channel.Electric expansion valve according to the present invention can effectively solve the problems, such as that coil magnetic guiding frame is easy to corrode because of condensed water or rainwater.
Description
Technical field
It is swollen more particularly to a kind of electronics the present invention relates to being assembled in motor-driven valve used in air conditioner, refrigerator, heat pump etc.
Swollen valve.
Background technique
Being used to the electric expansion valve of adjusting refrigerant flow rate in the refrigeration systems such as air-conditioning includes valve part and coil, line
Snare is outside valve body, since coil magnetic guiding frame has used the material with preferable magnetic property to make, the magnetic guiding frame of coil
Corrosion resistance is obviously not so good as stainless steel (magnetic property of stainless steel is bad), in the long-term use coil magnetic guiding frame and valve
Body casing binding face is also easy to produce the corrosion such as corrosion.
In order to solve the problems, such as corrosion, in Publication No. JPA2002054756, apply for the day of artificial only Gong Ji Co., Ltd.
In this patent, a kind of motor-driven valve is disclosed.The coil case of the motor-driven valve is formed with waterproof cover integrated injection molding, to condensed water or rain
Water, which enters between magnetic guiding frame and casing, certain protective action, reduces the degree of magnetic guiding frame corrosion, waterproof cover top center
It is provided with gas vent φ, is bonded with casing due to magnetic guiding frame tighter when coil is assembled with valve body, cause between waterproof cover and valve body
One air is being pressed against in cavity, can not be successfully installation valve body, so it is exactly for arranging that waterproof cover top center, which is provided with gas vent φ,
Gas, so that easy for installation between valve body and waterproof cover.In this motor-driven valve, condensed water or rainwater can also be from gas vents
It flows between magnetic guiding frame and casing, can also have the risk of corrosion, without thoroughly solving the problems, such as the corrosion of coil magnetic guiding frame.
Summary of the invention
Technical purpose of the invention is that the defect for solving the above-mentioned prior art, provides a kind of electric expansion valve, can be with
Effectively solve the problems, such as that coil magnetic guiding frame is easy to corrode because of condensed water or rainwater.
To reach technical purpose of the invention, the present invention provides a kind of electric expansion valve, including valve body and it is located at valve
External waterproof cover is formed with accommodating chamber between valve body and waterproof cover, be provided with sealing-plug in accommodating chamber, sealing-plug and/or anti-
Water cover forms the channel of connection accommodating chamber and exterior space, and when valve body completes installation, valve body squeezes sealing-plug and blocks channel.
In electric expansion valve provided by the present invention, it is provided with sealing-plug in the accommodating chamber between valve body and waterproof cover,
And the channel of connection accommodating chamber and exterior space is formed on sealing-plug and/or waterproof cover, it is installed on valve body by waterproof cover
When, the air between valve body and waterproof cover can be exhausted via the channel between sealing-plug and waterproof cover, thus side
Just the installation between waterproof cover and valve body.After completing installation of the waterproof cover on valve body, valve body squeezes sealing-plug to seal
Stifled channel can be effectively prevented condensed water either rainwater and be entered in the accommodating chamber between valve body and waterproof cover from channel,
To effectively avoid coil magnetic guiding frame from corrosion problem occur.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electric expansion valve of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of the electric expansion valve of the embodiment of the present invention；
Fig. 3 is the cross-sectional view of the sealing-plug of the electric expansion valve of the embodiment of the present invention；
Fig. 4 is the cross-sectional view of the waterproof cover of the electric expansion valve of the embodiment of the present invention；
Fig. 5 is the perspective view of the waterproof cover of the electric expansion valve of the embodiment of the present invention；
Fig. 6 is the waterproof cover of the electric expansion valve of first embodiment of the invention and the matching chart of sealing-plug；
Fig. 7 is the waterproof cover of the electric expansion valve of second embodiment of the invention and the matching chart of sealing-plug；
Fig. 8 is the waterproof cover of the electric expansion valve of third embodiment of the invention and the matching chart of sealing-plug；And
Fig. 9 is the waterproof cover of the electric expansion valve of fourth embodiment of the invention and the matching chart of sealing-plug.
Description of symbols: 1, valve body；2, waterproof cover；3, accommodating chamber；4, sealing-plug；5, mounting hole；6, the first intercommunicating pore；
7, installation groove；8, the second intercommunicating pore；9, stop lug；10, card slot；11, air channel；12, coil case；13, sealing bar.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Referring to shown in Fig. 1 to Fig. 9, the present invention provides a kind of electric expansion valve, including valve body 1 and it is located at outside valve body 1
Waterproof cover 2, accommodating chamber 3 is formed between valve body 1 and waterproof cover 2, is provided with sealing-plug 4 in accommodating chamber 3, sealing-plug 4 and/or
The channel that connection accommodating chamber 3 and exterior space is formed on waterproof cover 2, when valve body 1 completes installation, valve body 1 squeezes sealing-plug 4 and blocks
Channel.
In electric expansion valve provided by the present invention, it is provided in the accommodating chamber 3 between valve body 1 and waterproof cover 2 close
Blocking 4, and sealing-plug 4 and/or waterproof cover 2 form the channel of connection accommodating chamber 3 and exterior space, are installed to by waterproof cover 2
When on valve body 1, the air between valve body 1 and waterproof cover 2 can be carried out via the channel between sealing-plug 4 and waterproof cover 2
Exhaust, to facilitate the installation between waterproof cover 2 and valve body 1.Waterproof cover 2 is completed after the installation on valve body 1, valve body 1
Sealing-plug 4 is squeezed to block channel, condensed water either rainwater can be effectively prevented and enter valve body 1 and waterproof from channel
In accommodating chamber 3 between cover 2, so that coil magnetic guiding frame effectively be avoided corrosion problem occur.
Preferably, sealing-plug 4 is elastic sealing element, such as sealing-plug is rubber stopper.Elastic packing is set by sealing-plug 4
Part, so that it may after being installed in place between waterproof cover 2 and valve body 1, active force be applied to sealing-plug 4 by valve body 1, make sealing-plug
4 occur flexible deformation, and the channel blockage of connection accommodating chamber 3 and exterior space that sealing-plug 4 and waterproof cover 2 are formed plays more
Good sealed waterproof effect.The channel can be formed on waterproof cover 2 on perhaps valve body 1 or be formed in waterproof cover 2 and valve
Between body 1.Certainly, even if sealing-plug 4 is not elastic sealing element, and above-mentioned channel can be blocked up by the extruding of valve body 1
Plug, it can be only slightly different in effect.
Electric expansion valve further includes coil case 12, and coil case 12 separates molding with waterproof cover 2, so that coil case 12
With waterproof cover 2 in injection moulding process, it not will lead at the top of waterproof cover and coil magnetic guiding frame be partly because capsulation material injection moulding process
The high problem of the scrappage that middle contraction distortion degree is different and generates can also effectively solve waterproof cover top and coil magnetic guiding frame
Partly because the material thermal conductivity rate of contact is different, the problem of being easy to appear cracking in injection moulding process.
Preferably, 2 bottom of waterproof cover is provided with sealing bar 13, and supersonic welding is connected between waterproof cover 2 and coil case 12
One.The bottom of waterproof cover 2 is provided at least two circle sealing bars 13, and waterproof cover 2 passes through the outer of sealing bar 13 and coil case 12
Surface contact, can be melted, and be combined together with coil case by sealing bar 13 after ultrasonic bonding, to realize that connection is made
With.
It is the first embodiment of electric expansion valve of the invention, in the present embodiment, waterproof cover 2 in conjunction with shown in Figure 6
Top offer mounting hole 5, sealing-plug 4 is arranged in mounting hole 5, and channel includes the first connection being arranged on sealing-plug 4
Hole 6.Card slot 10 is provided on sealing-plug 4, sealing-plug 4 is fastened in mounting hole 5 by card slot 10, is formed between waterproof cover 2
Clamping.The center of sealing-plug 4 is arranged in the first intercommunicating pore 6 in the present embodiment, and axially penetrates through sealing-plug 4 along sealing-plug 4.
When assembling waterproof cover 2 and valve body 1, the air between waterproof cover 2 and valve body 1 can be via 6 row of the first intercommunicating pore
Out, it not will cause air extrusion, the assembly for realizing waterproof cover 2 and valve body 1 can be facilitated.After the assembly is completed, valve body 1 is withstood simultaneously
Sealing-plug 4 is squeezed, the first intercommunicating pore 6 of sealing-plug 4 is blocked, condensed water or rainwater can not be entered via the first intercommunicating pore 6
Valve body 1 and waterproof cover 2 are formed by accommodating chamber 3, therefore not will cause the corrosion problem of coil magnetic guiding frame, can effectively be extended
The service life of coil magnetic guiding frame.
It is the second embodiment of electric expansion valve of the invention, in the present embodiment, waterproof cover 2 in conjunction with shown in Figure 7
Top is provided with installation groove 7, and channel includes the second intercommunicating pore 8 for being provided with 7 side of installation groove of waterproof cover 2, sealing-plug 4
It is fixed in installation groove 7, sealing-plug 4 includes the stop lug 9 of corresponding second intercommunicating pore 8 setting, stop lug 9 and anti-
The inner wall interval of water cover 2 is arranged.In the present embodiment, the second intercommunicating pore 8 be it is multiple, multiple second intercommunicating pores 8 are in installation groove 7
The setting of side uniform intervals.
Installation groove 7 can play positioning action to the installation of sealing-plug 4, and sealing-plug 4 is being installed in installation groove 7
Afterwards, it can be achieved a fixed connection by screw etc. and waterproof cover 2.Due to the stop lug 9 of sealing-plug 4 and the inner wall of waterproof cover 2
Between be spaced setting, therefore, when carrying out the assembly of waterproof cover 2 and valve body 1, air between waterproof cover 2 and valve body 1 can be through
It is discharged by the second intercommunicating pore 8, is easy to implement the assembly of waterproof cover 2 Yu valve body 1.After the assembly is completed, the upward sealing of valve body 1
Plug 4, makes sealing-plug 4 deform, moves upwards, upward second intercommunicating pore 8 of stop lug 9 of sealing-plug 4, so that
Second intercommunicating pore 8 is blocked, and condensed water or rainwater can not enter valve body 1 via the second intercommunicating pore 8 and be formed by with waterproof cover 2
In accommodating chamber 3.
It is the 3rd embodiment of electric expansion valve of the invention, in the present embodiment, waterproof cover 2 in conjunction with shown in Figure 8
Top offer mounting hole 5, channel includes the second intercommunicating pore 8 for being provided with 5 side of mounting hole of waterproof cover 2, and sealing-plug 4 is sliding
Dynamic to be arranged in mounting hole 5, sealing-plug 4 includes the stop lug 9 of corresponding second intercommunicating pore 8 setting, stop lug 9 and waterproof cover
2 inner wall interval setting.In the present embodiment, the second intercommunicating pore 8 is multiple, circumferential direction of multiple second intercommunicating pores 8 along mounting hole 5
Uniformly arrangement.
Sealing-plug 4 is slidably arranged in mounting hole 5, when carrying out the assembly of waterproof cover 2 and valve body 1, waterproof cover 2 and valve body
The air in accommodating chamber 3 between 1 can be discharged via the second intercommunicating pore 8, consequently facilitating realizing the dress of waterproof cover 2 and valve body 1
Match.During valve body 1 is gradually installed in place, sealing-plug 4, gradually along 5 upward sliding of mounting hole, makes under the action of valve body 1
It obtains stop lug 9 gradually to draw close to the second intercommunicating pore 8, and finally blocks the second intercommunicating pore 8, it is cold so as to effectively prevent
Condensate or rainwater enter valve body 1 via the second intercommunicating pore 8 and are formed by accommodating chamber 3 with waterproof cover 2.
Preferably, in the present embodiment, 4 side of sealing-plug is provided with card slot 10, and sealing-plug 4 is fastened on peace by card slot 10
It fills in hole 5.The width of card slot 10 is slightly larger than the thickness of mounting hole 5, and sealing-plug 4 is allowed to realize certain journey in mounting hole 5
The sliding of degree, thus more convenient movement realized exhaust and block the second intercommunicating pore 8.
Preferably, the installation end of sealing-plug 4 is provided with guide cone.The guide cone has taper angle theta, to sealing when for installing
Plug 4 play the guiding role, and facilitates and sealing-plug 4 is installed in waterproof cover 2.
It is the fourth embodiment of electric expansion valve of the invention, the top of waterproof cover 2 offers in conjunction with shown in Figure 9
Mounting hole 5, channel are air channel 11 of the connection at 5 edge of mounting hole of waterproof cover 2, and sealing-plug 4 is slidably arranged in mounting hole 5
Interior, sealing-plug 4 includes the stop lug 9 that corresponding air channel 11 is arranged, the inner wall interval setting of stop lug 9 and waterproof cover 2.
Waterproof cover 2 and the fit structure of sealing-plug 4 in the present embodiment is essentially identical with 3rd embodiment, and difference exists
In in the present embodiment, channel includes that the air channel 11 namely air channel 11 being connected at 5 edge of mounting hole of waterproof cover 2 are to set
It sets at the edge of mounting hole 5, and from the edge of mounting hole 5 radially outward Zhou Yanshen, and the second intercommunicating pore 8 in 3rd embodiment
Direct connection relationship is had no between mounting hole 5, and the side of mounting hole 5 is only set.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of electric expansion valve, which is characterized in that including valve body (1) and it is located at the waterproof cover (2) of the valve body (1) outside,
It is formed with accommodating chamber (3) between the valve body (1) and waterproof cover (2), is provided with sealing-plug (4) in the accommodating chamber (3), it is described
Sealing-plug (4) and/or the waterproof cover (2) form the channel for being connected to accommodating chamber (3) and exterior space, the valve body (1)
When completing installation, the valve body (1) squeezes the sealing-plug (4) and blocks the channel, is provided with peace at the top of the waterproof cover (2)
It fills groove (7), the channel includes the second intercommunicating pore (8) for being provided with installation groove (7) side of the waterproof cover (2), institute
It states sealing-plug (4) to be fixed in the installation groove (7), the sealing-plug (4) includes corresponding second intercommunicating pore (8)
The stop lug (9) of setting, the inner wall interval setting of the stop lug (9) and the waterproof cover (2).
2. a kind of electric expansion valve, which is characterized in that including valve body (1) and it is located at the waterproof cover (2) of the valve body (1) outside,
It is formed with accommodating chamber (3) between the valve body (1) and waterproof cover (2), is provided with sealing-plug (4) in the accommodating chamber (3), it is described
Sealing-plug (4) and/or the waterproof cover (2) form the channel for being connected to accommodating chamber (3) and exterior space, the valve body (1)
When completing installation, the valve body (1) squeezes the sealing-plug (4) and blocks the channel, offers at the top of the waterproof cover (2)
Mounting hole (5), the channel includes the second intercommunicating pore (8) for being provided with mounting hole (5) side of the waterproof cover (2), described
Sealing-plug (4) is slidably arranged in the mounting hole (5), and the sealing-plug (4) includes corresponding second intercommunicating pore (8) setting
Stop lug (9), the inner wall interval of the stop lug (9) and the waterproof cover (2) is arranged.
3. the electric expansion valve according to claim 2, which is characterized in that sealing-plug (4) side is provided with card slot
(10), the sealing-plug (4) is fastened in the mounting hole (5) by the card slot (10).
4. the electric expansion valve according to claim 3, which is characterized in that the installation end of the sealing-plug (4), which is provided with, leads
To cone.
5. a kind of electric expansion valve, which is characterized in that including valve body (1) and it is located at the waterproof cover (2) of the valve body (1) outside,
It is formed with accommodating chamber (3) between the valve body (1) and waterproof cover (2), is provided with sealing-plug (4) in the accommodating chamber (3), it is described
Sealing-plug (4) and/or the waterproof cover (2) form the channel for being connected to accommodating chamber (3) and exterior space, the valve body (1)
When completing installation, the valve body (1) squeezes the sealing-plug (4) and blocks the channel, offers at the top of the waterproof cover (2)
Mounting hole (5), the channel include air channel (11) of the connection at mounting hole (5) edge of the waterproof cover (2), the sealing
Plug (4) is slidably arranged in the mounting hole (5), and the sealing-plug (4) includes the backstop of corresponding air channel (11) setting
Flange (9), the inner wall interval setting of the stop lug (9) and the waterproof cover (2).
6. the electric expansion valve according to claim 5, which is characterized in that the electric expansion valve further includes coil case
(12), the coil case (12) separates molding with the waterproof cover (2).
7. the electric expansion valve according to claim 6, which is characterized in that waterproof cover (2) bottom is provided with sealing bar
(13), ultrasonic bonding is integrated between the waterproof cover (2) and the coil case (12).
8. the electric expansion valve according to any one of claim 5 to 7, which is characterized in that the sealing-plug (4) is bullet
Property sealing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426786.8A CN106369202B (en) | 2015-07-20 | 2015-07-20 | Electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426786.8A CN106369202B (en) | 2015-07-20 | 2015-07-20 | Electric expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369202A CN106369202A (en) | 2017-02-01 |
| CN106369202B true CN106369202B (en) | 2019-07-30 |
Family
ID=57879636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510426786.8A Active CN106369202B (en) | 2015-07-20 | 2015-07-20 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369202B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571595A (en) * | 2017-03-10 | 2018-09-25 | 浙江盾安机械有限公司 | Electric expansion valve |
| CN211854542U (en) * | 2019-12-16 | 2020-11-03 | 浙江盾安禾田金属有限公司 | Air conditioner, electronic expansion valve and electromagnetic coil structure thereof |
| CN112901809A (en) * | 2021-03-02 | 2021-06-04 | 青岛沃华软控有限公司 | Low-temperature-resistant automatic valve for oil depot |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054756A (en) * | 2000-08-14 | 2002-02-20 | Fuji Koki Corp | Electric operated valve |
| CN202906091U (en) * | 2012-11-29 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted electronic-device connector with waterproof structure |
| CN103185162A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve as well as manufacturing method thereof and bolt assembly |
| CN203614871U (en) * | 2013-11-27 | 2014-05-28 | 浙江三花制冷集团有限公司 | Electromagnetic valve and coil assembly thereof |
| CN204153282U (en) * | 2014-10-15 | 2015-02-11 | 株式会社鹭宫制作所 | Solenoid valve |
| CN204300477U (en) * | 2014-12-09 | 2015-04-29 | 瑞安市东方阀门有限公司 | Corrosion-proof solenoid valve |
-
2015
- 2015-07-20 CN CN201510426786.8A patent/CN106369202B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054756A (en) * | 2000-08-14 | 2002-02-20 | Fuji Koki Corp | Electric operated valve |
| CN103185162A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve as well as manufacturing method thereof and bolt assembly |
| CN202906091U (en) * | 2012-11-29 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted electronic-device connector with waterproof structure |
| CN203614871U (en) * | 2013-11-27 | 2014-05-28 | 浙江三花制冷集团有限公司 | Electromagnetic valve and coil assembly thereof |
| CN204153282U (en) * | 2014-10-15 | 2015-02-11 | 株式会社鹭宫制作所 | Solenoid valve |
| CN204300477U (en) * | 2014-12-09 | 2015-04-29 | 瑞安市东方阀门有限公司 | Corrosion-proof solenoid valve |
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| Publication number | Publication date |
|---|---|
| CN106369202A (en) | 2017-02-01 |
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