CN201265692Y - Normally opened electromagnet valve structure - Google Patents
Normally opened electromagnet valve structure Download PDFInfo
- Publication number
- CN201265692Y CN201265692Y CNU2008202103445U CN200820210344U CN201265692Y CN 201265692 Y CN201265692 Y CN 201265692Y CN U2008202103445 U CNU2008202103445 U CN U2008202103445U CN 200820210344 U CN200820210344 U CN 200820210344U CN 201265692 Y CN201265692 Y CN 201265692Y
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- China
- Prior art keywords
- iron core
- valve
- moving iron
- valve seat
- normally open
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- Expired - Lifetime
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Abstract
The utility model relates to a structure of a normally open electromagnetic valve, which comprises a valve seat (2), a valve body (6), a valve sleeve (13), a static iron core (5), a movable iron core (12), a spring (11) and a base (3), wherein an electromagnetic coil (8) is fixed on the valve sleeve (13), and the static iron core (5) is fixed at one end of the valve sleeve (13); the movable iron core (12) is arranged in the valve sleeve (13), with one end provided with a dent hole and the other end fixedly connected with a valve rod (14); the spring (11) is elastically arranged in the dent hole, and the base (3) is arranged in the valve seat (2); a valve cavity (17) is formed between the movable iron core (12) in the valve sleeve (13) and the valve seat (2), and an inner cavity (20) is formed between the movable iron core (12) and a static iron core (10). The structure of the normally open electromagnetic valve is characterized in that the valve seat (2) is provided with a block part (21) for preventing the movable iron core (12) from sliding. When the end part (32) of the movable iron core (12) abuts on the block part (21) of the valve seat (2), and the valve cavity (17) and the inner cavity (20) are communicated by a balance passage (16) arranged on the movable iron core (12). The structure avoids the direct impact between the valve body and the base and between the valve body and the valve rod, improves the service life of the valve rod and enhances the performance reliability of the electromagnetic valve.
Description
Technical field
The utility model relates to a kind of normally open solenoid valve, refers more particularly to a kind of alternating-current normally-open electromagnetic valve that is applied to refrigeration systems such as air-conditioning, freezing and refrigeration.
Background technique
Solenoid valve is as the automatic critical elements of control, and it mainly is the magnetic force that produces by electromagnetic coil, and what the clutch that realizes the relative valve seat of valve body reached valve opens/close purpose.
Figure 1A/1B is the structural representation of normally open solenoid valve under energising/off-position of prior art.Shown in Figure 1A, when electromagnetic coil 8 ' energising, under the effect of electromagnetic force, moving iron core 12 ' overcome heavy type hole 5 ' medi-spring 11 ' reaction force that elastic strain produced, with static iron core 10 ' adhesive, drive simultaneously move on the valve rod 14 be fixed on the one end ' axially break away from ball valve 6 ', this moment ball valve 6 ' base 3 ' medi-spring 4 ' the elastic force effect under, to valve port 15 ' motion and the close valve orifice 18 of fitting with it ', entrance sleeve 1 ' and discharge connection 7 ' between the medium stream disconnect; Equally shown in Figure 1B, when electromagnetic coil 8 ' outage, electromagnetic force disappears, moving iron core 12 ' spring 11 ' effect under, drive valve rod 14 ' move down together butt ball valve 6 ', since act on ball valve 6 ' on spring 11 ' power greater than spring 4 ' power, so valve rod 14 ' promotions ball valve 6 ' disengaging valve port 15 ' and unlatching valve opening 18 ', entrance sleeve 1 ' and discharge connection 7 ' between the medium stream communicate.
In above-mentioned solenoid valve power process, because ball valve 6 ' suffered outer force unbalance, ball valve 6 ' disengaging valve port 15 ' after, valve rod 14 ' meeting promotion ball valve 6 ' continue to move down, until ball valve 6 ' abut to base 3 ' on positive stop lug boss 19 ', at this moment, ball valve 6 ' and positive stop lug boss 19 ' between can produce bump, make ball valve 6 ' stop motion, then valve rod 14 ' and ball valve 6 ' between produce bump and make iron core 12 ' stop motion.Consider the sensitivity of valve events, valve rod 14 ' diameter generally smaller (between 0.5mm one 1.5mm), and with ball valve 6 ' for some contact, so above-mentioned bump can make valve rod 14 ' bottom easy deformation.Valve rod 14 ' many more with the number of times of ball valve 6 ' bump, its bump end face becomes big more, and axial dimension becomes short more, finally cause moving bad, even occur valve rod 14 ' with valve port 15 ' stuck, or valve rod 14 ' bending/fracture makes the solenoid valve inefficacy.
The model utility content
At above-mentioned defective, the utility model aims to provide and a kind ofly can significantly reduce the impact in the valve rod running, the electromagnetic valve structure that effectively prolongs the working life of valve rod.
The utility model is by the following technical solutions: a kind of normally open solenoid valve structure, comprise the valve pocket that is fixed with electromagnetic coil, be fixed on the valve seat and the static iron core that is fixed on the described valve pocket the other end of described valve pocket one end, the one end offers heavy type hole and the other end is connected with the moving iron core of valve rod, bullet is located at the spring in the described heavy type hole, be arranged on base and valve body in the described valve seat, form valve pocket between described moving iron core and the described valve seat, form inner chamber between described moving iron core and the described static iron core, it is characterized in that, described valve seat has the stop part that stops that described moving iron core slides, when the stop part of the moving described valve seat of iron core butt, be communicated with by the balance channel of offering on the described moving iron core between described valve pocket and the described inner chamber.
Preferably, the stop part of described valve seat is the stepped part on the end relative with described moving iron core of described valve seat, and the end relative with described valve seat of described moving iron core is provided with stepped part, connect by the stepped part of described moving iron core and the stepped part of valve seat, to stop the slip of described valve rod.
Preferably, the stop part of described valve seat is the inclined plane part on the end relative with described moving iron core of described valve seat, and the end relative with described valve seat of described moving iron core is provided with inclined plane part, connect by the inclined plane part of described moving iron core and the inclined plane part of valve seat, to stop the slip of described valve rod.
Preferably, described balance channel extends to the aperture in heavy type hole for the end from described moving iron core; Or be the opening that is opened in the up/down perforation of described moving iron core periphery.
Preferably, the periphery of described moving iron core offers side opening and is communicated with heavy type hole, and described balance channel is the aperture that the end of described moving iron core extends to described side opening; Or be the opening that extends to described side opening from described end that is opened in the periphery of described moving iron core.
Preferably, described valve body is a sphere structure.
Such normally open solenoid valve structure, when electromagnetic coil cuts off the power supply, moving iron core drives valve rod together to lower slider butt valve body and make and break away from valve port and open valve opening, continue then to lower slider, stop to slide abut to the stop part of valve seat when moving iron core after, at this moment still connect between valve body and the base, avoided between valve body and the base and the direct bump between valve body and the valve rod by the spring bullet, improve the working life of valve rod, strengthened the performance reliability of solenoid valve; Simultaneously behind the stop part of moving iron core butt valve seat, be communicated with by the balance channel of offering on the moving iron core between valve pocket and the inner chamber, eliminated the pressure reduction influence between valve pocket and the inner chamber, and when solenoid valve switches, medium can enter/flow out heavy type hole fast by balance channel, increase the sensitivity that valve opening solenoid/moving iron core moves when closing, also can make medium enter the surface of contact that moving core interior is lubricated moving iron core and valve pocket simultaneously, further improve the running stability of solenoid valve.
Description of drawings
Figure 1A: the structural representation of the electromagnetic valve structure of prior art under "on" position;
Figure 1B: the structural representation of the electromagnetic valve structure of prior art under off-position;
Fig. 2: first embodiment's that the utility model provides structural representation;
Fig. 2 A: electromagnetic valve structure shown in Figure 2 partial enlarged drawing under "on" position;
Fig. 2 B: electromagnetic valve structure shown in Figure 2 partial enlarged drawing under off-position;
Fig. 3 A: the partial structurtes schematic representation of second embodiment that the utility model provides under "on" position;
Fig. 3 B: the partial structurtes schematic representation of second embodiment that the utility model provides under off-position;
Fig. 4: the structural representation of the 3rd embodiment under off-position that the utility model provides;
Fig. 5: the structural representation of the 4th embodiment under off-position that the utility model provides;
Fig. 6: the structural representation of the 5th embodiment under off-position that the utility model provides;
Symbol description among the figure
(for ease of explanation, prosign is used at parts/position identical before and after improving):
1/1 '-entrance sleeve, 2/2 '-valve seat, 3/3 '-base, 4/4 '-the base spring, 5/5 '-heavy type hole, 6/6 '-valve body, 7/7 '-discharge connection, 8/8 '-electromagnetic coil, 9/9 '-mounting screw, 10/10 '-static iron core, 11/11 '-spring, 12/12 '-moving iron core, 13/13 '-valve pocket, 14/14 '-valve rod, 15/15 '-valve port, 16/16 '-balance channel, 17/17 '-valve pocket, 18/18 '-valve opening, 19 '-positive stop lug boss, the 20-inner chamber, 21-stop part, 22-stepped part, 23-stepped part, the 24-inclined plane part, the 25-inclined plane part, 26-sinks the type hole, the 27-receiving groove, the 28-periphery, the 29/29A-opening, the 30/30A-aperture, the 31-side opening, the end of the moving iron core of 32-.
Embodiment
Solenoid valve first embodiment's that Fig. 2 provides for the utility model structural representation.
As shown in Figure 2, solenoid valve comprises the valve pocket 13 that is fixed with electromagnetic coil 8, the airtight static iron core 10 that is welded on the valve seat that has valve opening 18 2 of valve pocket 13 1 ends and is fixed on valve pocket 13 the other ends by mounting screw 9, place valve pocket 13 interior front ends to be connected with the moving iron core 12 of valve rod 14, be processed with heavy type hole 5 at moving iron core 12 towards an end of static iron core 10, be hit by a bullet and be provided with spring 11 in its hole, offer the heavy type hole 26 that communicates with valve opening 18 in the bottom of valve seat 2, the base 3 that will have receiving groove 27 by being threaded is fixed in the heavy type hole 26, be provided with base spring 4 in the receiving groove 27, ball-type valve body 6 is located in the receiving groove 27 by base spring 5 bullets.Form valve pocket 17 between moving iron core 12 in valve pocket 13 and the valve seat 2, form inner chamber 20 between moving iron core 12 in valve pocket 13 and the static iron core 10, towards the end of valve pocket 17, be processed with aperture 30 as balance channel 16 at moving iron core 12, aperture 30 communicates with the heavy type hole 5 that is opened in the other end.Like this valve pocket 17 is communicated with inner chamber 20, entrance sleeve 1 and discharge connection 7 are welded on the valve seat respectively.
Fig. 2 A/2B is respectively the partial enlarged drawing of above-mentioned electromagnetic valve structure under energising/off-position.
Shown in Fig. 2 A/2B, be provided with stepped part 23 in the end relative of valve seat 2 with moving iron core 12, be provided with stepped part 22 in the end relative of moving iron core 12 equally with valve seat 2.When electromagnetic coil 8 energisings, under the effect of electromagnetic force, moving iron core 12 overcomes the reaction force that elastic strain produced of the spring 11 in the heavy type hole 5, with static iron core 10 adhesives, driving the valve rod 14 be fixed on the one end simultaneously moves on axially and breaks away from ball valve 6, under the elastic force effect of the spring 4 of ball valve 6 this moment in the receiving groove 26 of base 3, slide and the close valve orifice 18 of fitting with it to valve port 15, the medium stream between entrance sleeve 1 and the discharge connection 7 disconnects; When electromagnetic coil 8 outages, electromagnetic force disappears, moving iron core 12 is under the elastic force effect of spring 11, drive valve rod 14 and move down butt ball valve 6 together, and promote ball valve 6 disengaging valve ports 15 and unlatching valve opening 18, medium stream between entrance sleeve 1 and the discharge connection 7 communicates, this moment is because the suffered external force of ball valve 6 is also uneven, valve rod 14 drives and can continue to move down after ball valve 6 breaks away from valve port 15, when stepped part 23 butts of the stepped part 22 of moving iron core 12 and valve seat 2, moving iron core 12 stops to slide and reaches the balance state of rest, at this moment also just connect between ball valve 6 and the base by spring 4 bullets, because ball valve 6 contacts for point with valve rod 14, improved effect is more obvious.
Fig. 3 A/3B be second embodiment that provides of the utility model under energising/off-position the partial structurtes schematic representation.Different with aforementioned structure is, is provided with inclined plane part 25 in the end relative with moving iron core 12 of valve seat 2, is provided with inclined plane part 24 in the end relative with valve seat 2 of moving iron core 12 equally.When electromagnetic coil 8 outage, moving iron core 12 drives valve rods 14 and moves down together, and when inclined plane part 25 butts of the inclined plane part 24 of moving iron core 12 and valve seat 2, moving iron core 12 stops to slide and reaches the balance state of rest.
The 3rd embodiment that Fig. 4 provides for the utility model under off-position structural representation.Different with said structure is, in this embodiment, the opening 29 that the periphery 28 of moving iron core 12 offers perforation is communicated with valve pocket 17 as described balance channel 16 with inner chamber 20, certain described opening also can be axial a plurality of distributions, and its working principle is identical with previous embodiment.
The structural representation of the 4th and the 5th embodiment under off-position that Fig. 5 and Fig. 6 provide for the utility model, different with said structure is, and in these two embodiments, the periphery 28 of moving iron core offers side opening 31, and side opening 31 is communicated with heavy type hole 5.In Fig. 5, the end 32 of moving iron core is offered an aperture 30A and is extended to described side opening 31, like this, by aperture 30A, side opening 31 and heavy type hole 5 valve pocket 17 is communicated with inner chamber 20; In Fig. 6, the periphery 28 of moving iron core offers an opening 29A, and this 29A 32 extends to side opening 31 from the end, like this, by opening 29A, side opening 31 and heavy type hole 5 valve pocket 17 is communicated with inner chamber 20.
By the introduction to above-mentioned concrete preference, as can be seen, the technological scheme that the utility model provides has been avoided between valve body and the base and the direct bump between valve body and the valve rod, in the working life of having improved valve rod, has strengthened the performance reliability of solenoid valve; Simultaneously behind the stop part of moving iron core butt valve seat, be communicated with by the balance channel of offering on the moving iron core between valve pocket and the inner chamber, eliminated the pressure reduction influence between valve pocket and the inner chamber, when solenoid valve switches, medium can enter/flow out heavy type hole fast by balance channel, can increase the sensitivity that valve opening solenoid/moving iron core moves when closing, medium enters the surface of contact of lubricated moving iron core of moving core interior and tubular valve main body, further improves the running stability of solenoid valve.
Certainly, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model; repeat no more at this, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1, a kind of normally open solenoid valve structure, comprise valve seat (2), valve body (6), be fixed with the valve pocket (13) of electromagnetic coil (8), be fixed on the static iron core (10) of described valve pocket (13) one ends, the one end offers heavy type hole (5) and the other end is connected with the moving iron core (12) of valve rod (14), bullet is located at the spring (11) in the described heavy type hole (5), be arranged on the base (3) in the described valve seat (2), form valve pocket (17) between described moving iron core (12) and the described valve seat (2), form inner chamber (20) between described moving iron core (12) and the described static iron core (10), it is characterized in that, described valve seat (2) has the stop part (21) that stops that described moving iron core (12) slides, when the stop part (21) of the described valve seat of end (32) butt (2) of moving iron core, be communicated with by the balance channel of offering on the described moving iron core (12) (16) between described valve pocket (17) and the inner chamber (20).
2, normally open solenoid valve structure as claimed in claim 1 is characterized in that: the stop part (21) of described valve seat (2) is the stepped part (23) on the end relative with described moving iron core (12) of described valve seat (2).
3, normally open solenoid valve structure as claimed in claim 1 is characterized in that: the stop part (21) of described valve seat (2) is the inclined plane part (25) on the end relative with described moving iron core (12) of described valve seat (2).
4, normally open solenoid valve structure as claimed in claim 2 is characterized in that: the end of described moving iron core (32) are provided with stepped part (22), connect by the stepped part (23) of described stepped part (22) with described valve seat, to stop the slip of described valve rod.
5, normally open solenoid valve structure as claimed in claim 3 is characterized in that: the end of described moving iron core (32) are provided with inclined plane part (24), connect by the inclined plane part (25) of described inclined plane part (24) with described valve seat, to stop the slip of described valve rod.
6, as the described normally open solenoid valve structure of claim 1-5, it is characterized in that: described balance channel (16) is for extending to the aperture (30) in described heavy type hole (5) from the end (32) of described moving iron core.
7, as the described normally open solenoid valve structure of claim 1-5, it is characterized in that: described balance channel (16) is the opening (29) that is opened in the up/down perforation of described moving iron core (12) periphery (12).
8, as the described normally open solenoid valve structure of claim 1-5, it is characterized in that: the periphery (28) of described moving iron core (12) offers side opening (31) and is communicated with heavy type hole (5), and described balance channel (16) extends to the aperture (30A) of described side opening (31) for the end of described moving iron core (32).
9, as the described normally open solenoid valve structure of claim 1-5, it is characterized in that: the periphery (28) of described moving iron core (12) offers side opening (31) and is communicated with heavy type hole (5), and described balance channel (16) extends to the opening (29A) of described side opening (31) for the periphery (31) that is opened in described moving iron core (12) from described end (32).
10, as the described normally open solenoid valve structure of claim 1-5, it is characterized in that: described valve body (6) is a sphere structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202103445U CN201265692Y (en) | 2008-09-28 | 2008-09-28 | Normally opened electromagnet valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202103445U CN201265692Y (en) | 2008-09-28 | 2008-09-28 | Normally opened electromagnet valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265692Y true CN201265692Y (en) | 2009-07-01 |
Family
ID=40832060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202103445U Expired - Lifetime CN201265692Y (en) | 2008-09-28 | 2008-09-28 | Normally opened electromagnet valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265692Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844600A (en) * | 2010-04-15 | 2012-12-26 | 熊津豪威株式会社 | Latch valve and flow control device using the same |
| CN107532745A (en) * | 2015-04-14 | 2018-01-02 | 斯塔卡托技术公司 | Valve seat |
| CN108954991A (en) * | 2018-09-09 | 2018-12-07 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
-
2008
- 2008-09-28 CN CNU2008202103445U patent/CN201265692Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844600A (en) * | 2010-04-15 | 2012-12-26 | 熊津豪威株式会社 | Latch valve and flow control device using the same |
| CN102844600B (en) * | 2010-04-15 | 2015-05-06 | 熊津豪威株式会社 | Latch valve and flow control device using the same |
| CN107532745A (en) * | 2015-04-14 | 2018-01-02 | 斯塔卡托技术公司 | Valve seat |
| CN107532745B (en) * | 2015-04-14 | 2021-02-26 | 斯塔卡托技术公司 | Valve seat |
| CN108954991A (en) * | 2018-09-09 | 2018-12-07 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Zhejiang Sanhua Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |