CN106594318B - Three-way magnetic valve - Google Patents
Three-way magnetic valve Download PDFInfo
- Publication number
- CN106594318B CN106594318B CN201510682829.9A CN201510682829A CN106594318B CN 106594318 B CN106594318 B CN 106594318B CN 201510682829 A CN201510682829 A CN 201510682829A CN 106594318 B CN106594318 B CN 106594318B
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- China
- Prior art keywords
- sliding block
- valve
- valve seat
- recirculation hole
- valve body
- 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
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
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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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of three-way magnetic valves, including valve body and it is set in the coil of the valve body periphery, the valve body includes valve body, and the valve body forms valve chamber, is provided with the first valve seat and the second valve seat being arranged oppositely in the circumferential side wall of the valve body；It is additionally provided with pre-compression component, so that applying the pressure towards the recirculation hole direction blocked to the sliding block when the sliding block blocks first recirculation hole or second recirculation hole.Due to the setting of pre-compression component, so that three-way magnetic valve is in two kinds of working conditions, the active force for the recirculation hole that a direction is blocked can be applied to sliding block, so that can also guarantee the normal work and flow path switching of three-way magnetic valve when the pressure difference in valve is less than critical value or is 0.
Description
Technical field
The present invention relates to heat-exchange system solenoid valves, and in particular to one kind is cut for air-conditioning in conditioner
Change the three-way magnetic valve of refrigerant flow path.
Background technique
It is well known that usually requiring to switch over the runner of refrigerant in cold and heat air regulating device, pass through slide-valve
Body is slided on valve seat and is realized with opening or closing corresponding valve port.Three-way magnetic valve is mostly used to meet greatly in the prior art
Above-mentioned function needs, and by controlling switching of its coil control system of switching on or off electricity refrigerant between two runners.Specifically refer to
Fig. 1, Fig. 2 respectively illustrate a kind of three-way magnetic valve in the overall structure diagram of two kinds of working conditions.
As shown in Figure 1, the one side of the valve body 6' of the first adapter tube 2' and solenoid valve connects, it is embedded in the other side of valve body 6'
Install and fix the valve seat 12' for being formed with two valve ports 14a', 14b' being made of circular through hole, and the second adapter tube
3', third adapter tube 4' are communicatively connect with above-mentioned valve port 14a', 14b' respectively, become the adapter tube of the first adapter tube 2' and second as a result,
The state that 3', third adapter tube 4' are connected to by means of valve body 6'.
Sliding block 10' is configured on the valve seat 12a' of valve seat 12', sliding block 10' is with sealing surface 10a' and valve seat
The state of 12a' contact configures on valve seat 12a', the sealing surface 10a' for keeping this smooth and valve seat 12a' sliding contact.?
The connecting rod 16' that axis direction extends is connect with sliding block 10', also, is abutted in the face of the opposite side of the sealing surface 10a' of sliding block 10'
The leaf spring 24' of the side oriented sealing surface 10a' reinforcing.
When electromagnetic coil is not powered on, plunger 18' under the action of the elastic force of helical spring 20' because moving downward, such as Fig. 1 institute
Show, so that the sliding block 10' being connect by means of connecting rod 16' with plunger 18' be made also to decline, sealing surface 10a' seals lower side
Valve port 14a'.At this moment, since slide valve 10' is because of the elastic force of above-mentioned leaf spring 24' and the refrigerant flowed into from the first adapter tube 2'
Strongly pushed to valve seat 12a', therefore valve port 14a' becomes the state being reliably sealed.Therefore, it is flowed from the first adapter tube 2'
The refrigerant entered in valve body 6' is flowed out by valve port 14b' to third adapter tube 4'.
On the other hand, when electromagnetic coil is powered, attractor 22' magnetic suck plunger 18' makes plunger 18' overcome spiral bullet
The elastic force of spring 20' and rise, as shown in Fig. 2, the sliding block 10' being connect by means of connecting rod 16' with plunger 18' is also risen, by it
The valve port 14b' of sealing surface 10a' sealing upper side.At this moment, since sliding block 10' is because of the elastic force of above-mentioned leaf spring 24' and from first
The refrigerant that adapter tube 2' is flowed into strongly is pushed to valve seat 12a', therefore valve port 14b' becomes the state being reliably sealed.
Therefore, the refrigerant flowed into valve body 6' from the first adapter tube 2' is flowed out by valve port 14a' to the second adapter tube 3'.
However, the solenoid valve of this structure, is by connecting rod band movable slider 10' two valve port arranged up and down to the same side
14a', 14b' are opened and closed operation, therefore two valve ports 14a', 14b' must have a certain distance in processing, and in order to
Guarantee that sliding block 10 can block one of valve port completely in the process of running, then the stroke of sliding block 10' has to be larger than valve port
The diameter of 14a' or 14b', i.e. L > (L1+L2)/2, wherein L is the stroke of sliding block 10', and L1 is the diameter of valve port 14a', and L2 is
The diameter of valve port 14b'.And since sliding block 10' is driven by plunger 18', then the stroke of sliding block 10' is plunger 18' and inhales
Operating range between introduction 22', the operating range are bigger, it is necessary to need bigger electromagnetic force to drive, in this way, in order to meet
The action performance requirement of solenoid valve, it is necessary to increase the power of coil to improve electromagnetic force.
Simultaneously as the difference of three-way magnetic valve application also requires threeway electromagnetism when the pressure difference in system is lower
Valve also can smoothly switch runner in low voltage difference, therefore, how to design one kind and do not need high-power coil, so that it may improve electricity
Magnetic force, and it is suitable for the three-way magnetic valve of low voltage difference environment, it realizes the reliable switching to air-conditioning system pipeline, just becomes ability
Field technique personnel technical problem urgently to be resolved.
Summary of the invention
In view of the foregoing drawbacks, present invention solves the technical problem that being to provide a kind of using lesser electromagnetic force, Ji Keshi
Now to the reliable switching of air-conditioning system pipeline, and the three-way magnetic valve being suitable under low voltage difference environment, for this purpose, the present invention uses
Following technical scheme:
Three-way magnetic valve including valve body and is set in the coil of the valve body periphery, and the valve body includes valve body, institute
It states valve body and forms valve chamber, which is characterized in that be provided with the first valve being arranged oppositely in the circumferential side wall of the valve body
Seat and the second valve seat；
First valve seat is provided with the first recirculation hole, and second valve seat is provided with the second recirculation hole；The sliding block can
Selectively first recirculation hole or second recirculation hole are blocked；
It is additionally provided with pre-compression component, so that when the sliding block blocks first recirculation hole or second recirculation hole
When, the pressure towards the recirculation hole direction blocked is applied to the sliding block.
The valve body further includes the casing being fixedly connected with the valve body, and described sleeve pipe is blocked by end socket, described sleeve pipe
It is internally provided with core iron, the core iron is connect with sliding block, so that the sliding block is moved with the movement of the core iron.
The pre-compression component is two, and the first pre-compression component including being arranged on first valve seat and setting are described
The second pre-compression component on second valve seat.
First pre-compression component has the first holding section and the second holding section, and second pre-compression component has third
Holding section and the 4th holding section.
First valve seat is offering the first card slot on the periphery wall at third sealing surface, and second valve seat exists
The second card slot is offered on the periphery wall at the 4th sealing surface.
For fastening with first card slot, the third holding section is used for and second card for first holding section
Slot fastens.
The sliding block has a pair of of recess portion, above offers the first groove of twice, and twice the are offered on the recess portion of the other side
Two grooves, first groove and second groove are longitudinally spaced a certain distance.
Second holding section is used to be used for and described second with the first groove snap fit, the 4th holding section
Groove snap fit.
A pair of of limited block is arranged in the two sides periphery of the sliding block, and the limited block has the first limiting section, the first butting section
And second limiting section, the second butting section；First limiting section and second limiting section be separated by the longitudinal direction it is certain away from
From.
The sliding block has the first sealing and support rim, and first sealing is integrated with the support rim
Structure.
Three-way magnetic valve provided by the invention, the first valve seat and the second valve seat are arranged oppositely, and the first sealing of sliding block
With the distance of the second sealing being staggered in the longitudinal direction；Or first valve seat and the second valve seat be staggered in the longitudinal direction it is certain away from
From the first sealing and the second sealing of sliding block are symmetrical arranged, so that sliding block only needs the movement travel of very little can be realized
The switching of flow path.The third sealing surface and the 4th sealing surface of sliding block are parallel to each other, and distance between the two is close less than first
Cover is at a distance from secondary sealing area, in this way, sliding block can move back and forth between primary sealing area and secondary sealing area, from
And when blocking the first recirculation hole, the second recirculation hole is connected；When blocking the second recirculation hole, the conducting of the first recirculation hole.
Using the three-way magnetic valve of above-mentioned slide block structure, compared with prior art, it can greatly reduce the movement travel of sliding block, due to
Core iron is to move simultaneously with sliding block, therefore the stroke of core iron also accordingly reduces, in this way, the electromagnetic force of driving core iron movement can also
To reduce, so as to can be realized as using low power coil.
Also, due to the setting of pre-compression component, so that three-way magnetic valve in two kinds of working conditions, can apply sliding block
The active force for the recirculation hole that one direction is blocked, so that can also be protected when the pressure difference in valve is less than critical value or is 0
Demonstrate,prove the normal work and flow path switching of three-way magnetic valve.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of working condition of three-way magnetic valve in the prior art；
Fig. 2 is the schematic diagram of three-way magnetic valve another kind working condition in the prior art；
Fig. 3 is first embodiment of the invention surface structure schematic diagram；
Fig. 4 is first embodiment of the invention structure chart；
Fig. 5 is the first working condition of first embodiment of the invention partial view；
Fig. 6 is the second working condition of first embodiment of the invention partial view；
Fig. 7 is the sliding block appearance diagram of first embodiment of the invention；
Fig. 8 is the pre-compression component structural schematic diagram of first embodiment of the invention；
Fig. 9 is the pre-compression component of first embodiment of the invention and the cooperation schematic diagram of valve seat；
Figure 10 is the slide block structure schematic diagram of second embodiment of the invention；
Figure 11 is the pre-compression component of second embodiment of the invention and the cooperation schematic diagram of valve seat and sliding block.
Specific embodiment
In order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawings of the specification, to implementation of the invention
Mode is described in detail.
First embodiment:
Referring to figure 3., Fig. 3 is first embodiment of the invention structural schematic diagram.
As shown in Figure 3, Figure 4, three-way magnetic valve provided by the invention is mainly assembled by valve body 2 and coil 1, valve body 2
Valve body 21 including being in general cylindrical shape structure, it is internal to form valve chamber 22, first is connected in the outer peripheral surface of valve body 21
Discharge connection 4 and second outlet adapter tube 5 and entrance sleeve 3, in the present embodiment, the central axis of first outlet adapter tube 4
The central axis S2 of S1 and second outlet adapter tube 5 are located along the same line.In order to which first outlet adapter tube 4 and second outlet are taken over
5 are connected on valve body 21, first can process two holes being oppositely arranged in the periphery of valve body 21, then pass through welding
First valve seat 41 and the second valve seat 42 are separately fixed on two holes, and first outlet adapter tube 4 and second outlet are connect by mode
Pipe 5 is separately fixed on the first valve seat 41 and the second valve seat 42.The extending direction of entrance sleeve 3 is set as taking over first outlet
4 extending direction is vertical.
First valve seat 41 and the second valve seat 42 can take identical structure, thus it is following only by taking the first valve seat 41 as an example into
Row description, those skilled in the art will be seen that, be equally applicable to the second valve seat 42 to the description of the first valve seat 41 below.
First valve seat 41 is substantially cylindrical, inside successively offer first pilot hole 411 and path of major diameter
First recirculation hole 412.Wherein, the first pilot hole 411 is used to fix with first outlet adapter tube 4 with sealing is merged；First recirculation hole
412 are used for the circulation of fluid, and are blocked or be connected by sliding block 6.
The end face (i.e. the end of the first recirculation hole 412) of first valve seat 41 is set as plane, to form primary sealing area
413, since the second valve seat 42 equally has the second pilot hole 421 and the second recirculation hole 422, and the end face of the second valve seat 42
It is set as plane, i.e. secondary sealing area 423, in this way, primary sealing area 413 and secondary sealing area 423 just constitute a pair mutually
Parallel plane, and the opening of the first recirculation hole 412 and the second recirculation hole 422 is then located at primary sealing area 413 and second
On sealing surface 423.
As shown in figure 4, valve body 2 further includes casing 23, casing 23 is set on valve body 21, usually passes through the modes such as welding
It is fixed.The other end of casing 23 then seals and is fixed with end socket 25, in this way, between valve body 21 and casing 23, end socket 25 just
A closed cavity is constituted, in the cavity, is provided with core iron 24, core iron 24 is cylindrical, can be in casing 23 up and down
It slides (on the basis of attached drawing 4), meanwhile, core iron 24 offers cavity, and spring 26 is provided in cavity, and spring 26 is resisted against core iron
Between 24 and end socket 25, when electromagnetic coil is cold, since the elastic force of spring 26 acts on, between core iron 24 and end socket 25
There are gaps, when the solenoid is activated, generate magnetic field, and the elastic force for making core iron 24 overcome spring 26 moves up, and is attracted with end socket 25.
Fig. 7 is please referred to, Fig. 7 is the sliding block appearance diagram of first embodiment of the invention.Sliding block 6 substantially has in middle part
The cube structure of lack part has upper surface 671 and lower end surface 672, and a side is provided with the first sealing 61 wherein,
Correspondingly, in symmetrical another side, it is provided with the second sealing 62, wherein the first sealing 61 is used for primary sealing area
The first recirculation hole 412 on 413 is blocked, and the second sealing 62 is used for the second recirculation hole 422 on secondary sealing area 423
It is blocked.First sealing 61 and the second sealing 62 are generally located at same plane in longitudinal section direction, and along sliding block 6
The direction of motion be staggered a certain distance.In this way, since the first recirculation hole 412 and the second recirculation hole 422 are coaxial arrangements, because
This, when the first sealing 61 blocks the first recirculation hole 412, the second sealing 62 and the second recirculation hole 422 are staggered certain
Distance, i.e. the second recirculation hole 422 are in the conductive state.Support rim 611 is arranged in the two sides of sliding block 6, height be set as with
The height of first sealing 61 is roughly the same, and such support rim 611 and the third that the first sealing 61 just constitutes sliding block are close
Cover 63 is formed the lower recess portion 612 in relative position between support rim 611 and the first sealing 61, when the first sealing
Portion 61 fits with primary sealing area 413, and when blocking the first recirculation hole 412, and support rim 611 is equally and primary sealing area
413 fit, and recess portion 612 then constitutes the circulation passage of fluid.
Similarly, since sliding block is symmetrical structure, therefore in the side where the second sealing of sliding block 62, it is again provided with
Support rim 621 and recess portion 622, the support rim 621 and the second sealing 62 then constitute the 64 (figure of the 4th sealing surface of sliding block
In be not shown), this is no longer going to repeat them.
Third sealing surface 63 and the 4th sealing surface 64 are also in parastate, and distance between the two is less than primary sealing area
The distance between 413 and secondary sealing area 423, in this way, sliding block 6 can primary sealing area 413 and secondary sealing area 423 it
Between have certain slide displacement, thus alternatively to the recirculation hole being arranged on primary sealing area 413 or secondary sealing area 423 into
Row blocks.
Certainly, the shape of support rim 611 is not limited thereto, and can also be positioned only at the surrounding of 6 side of sliding block, and
Any other shape as long as the height for meeting supporting lug 611 is roughly the same with the height of the first sealing 61, and can slided
When play a supporting role.
Centre bore 66 is provided between upper surface 671 and lower end surface 672, centre bore 66 runs through 6 entirety of sliding block, to be used for
Cooperated with core iron part.As shown in figure 4, the lower end of core iron 24 is provided with miner diameter end 243 and auxiliary section 244, wherein path
The outer diameter at end 243 is slightly less than the internal diameter of the centre bore 66 of sliding block, in this way, when miner diameter end 243 is assembled in centre bore 66, the two
For non-close-fitting structure, sliding block 6 can have certain rotational freedom relative to core iron 24.Sliding block 6 is being assembled to core iron 24
After upper, retaining ring 245 is fixed with auxiliary section 244 by modes such as welding or close-fitting.Centre bore 66 can be ellipse
Shape or the round combined shaped with rectangle, i.e., centre bore 66 is along sliding block or so (on the basis of by Fig. 4) mobile direction
Internal diameter is greater than the internal diameter with direction vertical direction.In this way, sliding block 6 can be relative to core iron portion along the moving direction of sliding block
Part has certain free sliding degree.
On the recess portion 612 of 6 side of sliding block, offer the first groove of twice 681, as shown in fig. 7, recess portion 681 be used for
Pre-compression component 8 cooperates, and the two sides of the first sealing 61 are arranged in the first groove 681, and extend a certain distance along longitudinal.Phase
Ying Di similarly offers the second groove of twice 682 on the recess portion 622 of 6 other side of sliding block, and equally, the second groove 682 is set
It sets in the two sides of the second sealing 62, and extends a certain distance along longitudinal.Also, the first groove 681 and the second groove 682
Extending direction conversely, because the first sealing 61 and the second sealing 62 are longitudinally spaced a certain distance, therefore first
Groove 681 and the second groove 682 are substantially centrosymmetric state.
First valve seat 41 is offering the first card slot 414 on the periphery wall at third sealing surface 413, as shown in Figure 9.
First card slot 414 is for being engaged with pre-compression component 8 with fixation.Equally, the second valve seat 42 is at the 4th sealing surface 423
Periphery wall on offer the second card slot 424.First card slot 414 and the second card slot 424 engage for pre-compression component 8 it is same
When, it can also prevent the first valve seat solder in welding from flowing to the primary sealing area 413 of the first valve seat 41.
Fig. 8 is please referred to, Fig. 8 is the pre-compression component structural schematic diagram of first embodiment of the invention.Pre-compression component 8 has altogether
It 2, is symmetricly set on the first valve seat 41 and the second valve seat 42, can be bent using wire, wherein the first pre- splenium
Part 8A has the first holding section 81 and the second holding section 82, and the second holding section 82 is outwardly protruded relative to the first holding section 81,
As shown in Figure 8；Correspondingly, the second pre-compression component 8B then has third holding section 83 and the 4th holding section 84.Wherein, the first engaging
Portion 81 is used to carry out snap fit with the first card slot 414 on the first valve seat 41, and the second holding section 82 is for first with sliding block 6
Groove 681 carries out snap fit；Third holding section 83 is used to carry out snap fit with the second card slot 424 on the second valve seat 42,
4th holding section 84 is used to carry out snap fit with the second groove 682 of sliding block 6.
The working principle of the invention is described below with reference to Fig. 6 and Fig. 6:
Referring to figure 5., Fig. 6, Fig. 5 are the first working condition of first embodiment of the invention partial view, and Fig. 6 is the present invention
First embodiment the second working condition partial view.
As shown in figure 5, electromagnetic force disappears, bullet of the core iron part 24 in spring 26 when electromagnetic coil is in off-position
The lower band movable slider 6 of power effect moves down.Since the height of the first sealing 61 of sliding block is higher than the height of the second sealing 62,
Therefore the second sealing 62 on the right side of sliding block is spaced a distance with the second recirculation hole 422, and first sealing 61 in left side
It is aligned with the first recirculation hole 412, meanwhile, under the effect of the pressure, the first sealing 61 is bonded with primary sealing area 413, and is sealed
Stifled first recirculation hole 412.Meanwhile first the second holding section 82 of pre-compression component 8A be caught in the first groove 681 of sliding block 6, and
The 4th holding section 84 of second pre-compression component 8B is then resisted against on the recess portion 622 of 6 other side of sliding block, since the first groove 681 is
Relative to the recessed state of recess portion 612, i.e. the bottom plane of the first groove 681 plane that is lower than recess portion 612, therefore the second engaging
Portion 82, which is in, not to stress or by minimum pressure, and the 4th holding section 84 is then connected on the recess portion 622 of right side, to apply to sliding block
Add power (on the basis of attached view shown in fig. 5) to the left, in this way, even if in the case where low voltage difference, sliding block 6 will not be because of
Pressure difference is smaller and can not block the first recirculation hole 412.At this point, fluid enters valve seat from air inlet tube 3, then by the right side of sliding block
Recess portion 622 and the second recirculation hole 422, flow to second outlet adapter tube 5.
As shown in fig. 6, core iron part 24 is overcome spring by electromagnetic force when electromagnetic coil is in energized state
26 elastic force effect, is attracted with the end socket 25 at top.At this point, core iron part 24 is moved up with movable slider 6, the second sealing 62
It is aligned with the second recirculation hole 422, the first sealing 61 is then moved to the top of the first recirculation hole 412.Under pressure, second
Sealing 62 is bonded with secondary sealing area 423, and blocks the second recirculation hole 422.Meanwhile second pre-compression component 8B the 4th engaging
Portion 84 is caught in the second groove 682 of sliding block 6, and the second holding section 82 of the first pre-compression component 8A is then resisted against 6 left side of sliding block
Recess portion 612 on, since the second groove 682 is relative to the recessed state of right side recess portion 622, the i.e. bottom of the second groove 682
Plane is lower than the plane of recess portion 622, and therefore, the 4th holding section 84, which is in, not to stress or by minimum pressure, and the second holding section
82 are connected on the recess portion 612 in left side, so that power (on the basis of attached view shown in fig. 6) to the right is applied to sliding block 6, this
Sample, even if sliding block 6 will not can not block the second recirculation hole 422 because pressure difference is smaller in the case where low voltage difference.This
When, fluid enters valve base cavity from air inlet tube 3, then passes through the recess portion 612 and the first recirculation hole 412 on the left of sliding block, flow direction
First outlet adapter tube 5.
In the present embodiment, when sliding block 6 drops to extreme position, the first sealing 61 is by 412 envelope of the first recirculation hole
Stifled, when sliding block 6 rises to extreme position, the second sealing 62 blocks the second recirculation hole 422, therefore, is located at 6 two sides of sliding block
Distance on longitudinal cross-section of the first sealing 61 and the second sealing 62, as fortune of the sliding block 6 in whole work process
Dynamic stroke.
In order to guarantee the validity of the closure of sliding block 6, there are same apertures in the first recirculation hole 412 and the second recirculation hole 422
In the case where, only need to the movement travel of sliding block 6 be equal to or is slightly less than the first recirculation hole 412 or the second circulation 422
Diameter.When the movement travel of sliding block 6 is slightly less than the diameter of the first recirculation hole 412 or the second recirculation hole 422, although when second
When sealing 62 blocks the second recirculation hole 422, the first sealing 61 can block a part of first recirculation hole 412 simultaneously, however,
Due to the presence of recess portion 612, fluid still can be flowed out along recess portion 612 from first outlet adapter tube 4.
And in the case that the first recirculation hole 412 is different with the aperture of the second recirculation hole 422, then it need to only guarantee sliding block 6
Movement travel is equal to or slightly less than biggish circulation bore dia in two recirculation holes.The diameter of even the first recirculation hole 412 is greater than
The movement travel of sliding block 6 is then equal to or is slightly less than the diameter of the first recirculation hole 412 by the diameter of the second recirculation hole 422；
Conversely, setting the movement travel of sliding block 6 to if the diameter of the second recirculation hole 422 is greater than the diameter of the first recirculation hole 412
In or be slightly less than the diameter of the second recirculation hole 422.
It should be noted that " being slightly less than " of the present invention, which refers to, can make suitable subtract to the movement travel of sliding block
It is small, it will be understood by those skilled in the art that above-mentioned can be in right amount because of the mistake within the allowed band caused by being machined
Difference is also possible to the setting made intentionally to be further reduced electromagnetic force.
It in actual processing, can according to need, design the first sealing 61 and the second sealing 62 in the longitudinal direction
Then the distance being staggered is formed by modes such as injection moldings.Obviously, this structure in terms of existing technologies, sliding block 6
Movement travel can greatly reduce, since core iron 24 is moved simultaneously with sliding block 6, the stroke of core iron also accordingly subtracts
It is small, in this way, the electromagnetic force that driving core iron 24 moves also can reduce, therefore can be can be realized as using low power coil.
Second embodiment:
With reference to the accompanying drawing 10,11, second embodiment of the present invention is described.
Please refer to Figure 10,11, wherein Figure 10 is the slide block structure schematic diagram of second embodiment of the invention, and Figure 11 is this
The pre-compression component of invention second embodiment and the cooperation schematic diagram of valve seat and sliding block.
Present embodiment for ease of description, and the difference of prominent itself and first embodiment, in two kinds of embodiments,
The component of identical function is played using same appended drawing reference.
As shown in Figure 10, mainly the structure of sliding block 6 is changed in present embodiment, specifically, sliding block 6 has the
One sealing 61 and integrally formed support rim 611, are formed simultaneously recess portion 612.Certainly, the first sealing 61 and support are convex
Platform 611 is not limited thereto, and the two can also be in discrete state, as long as the level for meeting the two is roughly the same.
It will be understood by those skilled in the art that being again provided with the second sealing 62 and recess portion 622 in the diagram other side.
It being different from the first embodiment, present embodiment is arranged groove 681/682 not on recess portion 612/622, but
Limited block 69 is arranged in the two sides periphery of sliding block 6, and limited block 69 is respectively provided with the first limiting section 691, the first butting section 693, and
Second limiting section 692, the second butting section 694, wherein the first limiting section 691 and the second limiting section 692 are separated by centainly in the longitudinal direction
Distance so that longitudinal height, longitudinal direction of second limiting section 692 roughly the same with the first sealing 61 of the first limiting section 691
Height is roughly the same with the second sealing 62.Wherein, the quantity of limited block 69 is a pair, is separately positioned on the two sides of sliding block (6)
Face.
As shown in figure 11, when solenoid valve is in energized state, core iron part 24 is moved up with movable slider 6, at this time the second sealing
Portion 62 blocks the second recirculation hole 422, and the second holding section 82 of the first pre-compression component 8A is resisted against on the first butting section 693, right
Sliding block 6 applies pressure to the right, and the 4th holding section 84 of the second pre-compression component 8B is then fastened in the second limiting section 692,
Pressure is not applied to sliding block 6, in this way, it is possible to also can guarantee that sliding block 6 can block the second circulation in the case where low voltage difference
Hole 422.When solenoid valve is in energized state, the active force that pre-compression component 8 applies sliding block 6 is then opposite.Those skilled in the art
Member is based on above description it is understood that this is no longer going to repeat them.
It should be noted that the term positions such as upper and lower, left and right that specification occurs, are shown with Figure of description
Basis should not be interpreted as the limitation to technical solution.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. three-way magnetic valve, including valve body (2) and it is set in the coil (1) of the valve body (2) periphery, valve body (2) packet
It includes valve body (21), forms valve chamber (22) inside the valve body (21), which is characterized in that the peripheral side of the valve body (21)
The first valve seat (41) and the second valve seat (42) being arranged oppositely are provided on wall；
First valve seat (41) is provided with the first recirculation hole (412), and second valve seat (42) is provided with the second recirculation hole
(422)；Sliding block (6) selectively blocks first recirculation hole (412) or second recirculation hole (422)；
Pre-compression component (8) are additionally provided with, so that when the sliding block (6) block first recirculation hole (412) or described the
When two recirculation holes (422), the pressure towards the recirculation hole direction blocked, the pre-compression component (8) are applied to the sliding block (6)
It is two, the first pre-compression component (8A) including being arranged on first valve seat (41) and setting are in second valve seat (42)
On the second pre-compression component (8B).
2. three-way magnetic valve as described in claim 1, which is characterized in that the valve body (2) further includes and the valve body
(21) casing (23) being fixedly connected, described sleeve pipe (23) are blocked by end socket (25), and described sleeve pipe (23) is internally provided with core iron
(24), the core iron (24) connect with sliding block (6), so that the sliding block (6) is moved with the movement of the core iron (24).
3. three-way magnetic valve described in claim 1, which is characterized in that first pre-compression component (8A) has the first holding section
(81) and the second holding section (82), second pre-compression component (8B) have third holding section (83) and the 4th holding section
(84)。
4. three-way magnetic valve as claimed in claim 3, which is characterized in that the end face of first valve seat (41) includes first close
Cover (413), first valve seat (41) are offering the first card slot on the periphery wall at the primary sealing area (413)
(414), the end face of second valve seat (42) includes secondary sealing area (423), and second valve seat (42) is close to described the
The second card slot (424) are offered on periphery wall at two sealing surfaces (423).
5. three-way magnetic valve as claimed in claim 4, which is characterized in that first holding section (81) is used for and described first
Card slot (414) fastens, and the third holding section (83) with second card slot (424) for fastening.
6. three-way magnetic valve as claimed in claim 3, which is characterized in that the sliding block (6) has a pair of of recess portion (612), and one
The first groove of twice (681) is offered on the recess portion (612) of side, offers the second groove of twice on the recess portion (612) of the other side
(682), first groove (681) and second groove (682) are longitudinally spaced a certain distance.
7. three-way magnetic valve as claimed in claim 6, which is characterized in that second holding section (82) is used for and described first
Groove (681) snap fit, the 4th holding section (84) are used for and the second groove (682) snap fit.
8. three-way magnetic valve as claimed in claim 3, which is characterized in that a pair of of limit of two sides periphery setting of the sliding block (6)
Position block (69), the limited block (69) have the first limiting section (691), the first butting section (693) and the second limiting section
(692), the second butting section (694)；First limiting section (691) and second limiting section (692) are separated by one in the longitudinal direction
Fixed distance.
9. three-way magnetic valve as claimed in claim 8, which is characterized in that the sliding block (6) have the first sealing (61) with
And support rim (611), first sealing (61) are structure as a whole with the support rim (611).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682829.9A CN106594318B (en) | 2015-10-20 | 2015-10-20 | Three-way magnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682829.9A CN106594318B (en) | 2015-10-20 | 2015-10-20 | Three-way magnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594318A CN106594318A (en) | 2017-04-26 |
| CN106594318B true CN106594318B (en) | 2019-06-21 |
Family
ID=58554719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510682829.9A Active CN106594318B (en) | 2015-10-20 | 2015-10-20 | Three-way magnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594318B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306321A (en) * | 1964-06-19 | 1967-02-28 | Controls Co Of America | Solenoid actuated threl-way valves |
| US3917220A (en) * | 1972-05-22 | 1975-11-04 | Samuel E Gilmore | Valve |
| CN2607484Y (en) * | 2003-01-20 | 2004-03-24 | 浙江三花股份有限公司 | Electromagnetic valve |
| WO2013188143A1 (en) * | 2012-06-14 | 2013-12-19 | Schlumberger Canada Limited | Elastically responsive unibody shear valve |
-
2015
- 2015-10-20 CN CN201510682829.9A patent/CN106594318B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306321A (en) * | 1964-06-19 | 1967-02-28 | Controls Co Of America | Solenoid actuated threl-way valves |
| US3917220A (en) * | 1972-05-22 | 1975-11-04 | Samuel E Gilmore | Valve |
| CN2607484Y (en) * | 2003-01-20 | 2004-03-24 | 浙江三花股份有限公司 | Electromagnetic valve |
| WO2013188143A1 (en) * | 2012-06-14 | 2013-12-19 | Schlumberger Canada Limited | Elastically responsive unibody shear valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106594318A (en) | 2017-04-26 |
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Effective date of registration: 20171115 Address after: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Zhejiang city of Shaoxing province Xinchang County Zhejiang three flower Limited by Share Ltd Mei Mei Zhu Zhen Chu Industrial Park Applicant before: ZHEJIANG SANHUA INTELLIGENT CONTROLS Co.,Ltd. |
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Effective date of registration: 20220822 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |