CN2619099Y - Normally open DC electromagnetic valve with throtting and voltage reducing - Google Patents
Normally open DC electromagnetic valve with throtting and voltage reducing Download PDFInfo
- Publication number
- CN2619099Y CN2619099Y CN 03231177 CN03231177U CN2619099Y CN 2619099 Y CN2619099 Y CN 2619099Y CN 03231177 CN03231177 CN 03231177 CN 03231177 U CN03231177 U CN 03231177U CN 2619099 Y CN2619099 Y CN 2619099Y
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- CN
- China
- Prior art keywords
- electromagnetic valve
- sealing head
- utility
- valve
- capillary
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a normally opened electromagnetic valve with direct current used in air conditioner. Current normally opened electromagnetic valve with direct current need parallel with a capillary when used, but parallel connection between both needs to arrange another pipe welded on the electromagnetic valve. The capillary is connected to the pipe, and the cost of the manufacture is high. In addition, the reliability of the electromagnetic valve is affected by the capillary and the pipe. The utility model comprises a coil and a valve body. A seal head is provided on the valve body. A groove is provided on the lower part of the seal head. The utility model is characterized in that a channel on the seal head is connected to the groove. The utility model has the advantages of simple structure, no need to use the capillary, saving current, reducing pressure by opening the channel on the seal head, decreasing manufacture cost of the electromagnetic valve and enhancing reliability of the electromagnetic valve.
Description
Technical field
The utility model relates to a kind of solenoid valve of idle call, and what possess the throttling step-down during especially a kind of closing often opens DC electromagnetic valve.
Background technique
Existing idle call often open DC electromagnetic valve (Fig. 1), mainly form by coil 1 and valve body 2, valve body comprises valve seat 28 and the sleeve pipe 21 that places on the valve seat, coil inside is stretched on the top of sleeve pipe, be provided with an end socket 22 in the sleeve pipe 21, its exterior edge face 22a pastes mutually with magnet case 11 1 interior edge face 11a, be provided with core iron parts in the sleeve pipe, these core iron parts are by core iron 24, sealing head 27, spring 25, attractor 26 is formed, seal attractor 26 and spring 25 that first side 27a passes ring-type, stretch into core iron 24 inside, be connected as a single entity by riveted joint and core iron 24, spring 25 is between core iron 24 and the attractor; 22 of core iron 24 and end sockets are provided with a magnetism resistent ring 23; End socket, attractor, core iron adopt soft magnetic material.When coil electricity, the core iron pressure spring moves down, and sealing head 27 is closed valve port 28b, and solenoid valve is in closed condition; When coil blackout, under the effect of spring force, core iron 24 moves up, and sealing head 27 breaks away from valve port 28b, and solenoid valve is in opening state.This solenoid valve generally all needs and capillary paralleling in use, and when solenoid valve 3 is in opening state (Fig. 2), refrigerant mainly circulates through solenoid valve; When solenoid valve 3 cuts out (Fig. 3), refrigerant mainly through capillary tube 4 circulations, makes refrigerant obtain the throttling step-down.And capillary tube 4 and solenoid valve 3 in parallel need be established a pipeline that is welded on the solenoid valve usually in addition, and capillary tube is serially connected in the pipeline, the manufacture cost height.In addition, the reliability of solenoid valve is subjected to the influence of capillary tube and pipeline.
The model utility content
Technical problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, provide a kind of have a throttling buck functionality often open DC electromagnetic valve, it does not need parallel capillary tube, reduces manufacture cost and improves the reliability of solenoid valve.
The technical solution of the utility model is such: what have the throttling step-down often opens DC electromagnetic valve, comprise coil and valve body, described valve body has sealing head, and the lower end of sealing head is fluted, it is characterized in that having on the described sealing head passage that communicates with groove.The size of this passage is identical with diameter capillaceous, and when closed electromagnetic valve, refrigerant can circulate from passage, keeps certain flow, plays the throttling buck functionality the same with capillary tube.Since the utility model needn't be on solenoid valve parallel capillary tube, saved capillary tube and welding capillaceous, thereby reduced the solenoid valve manufacture cost, improved the reliability of solenoid valve.
Described have a throttling step-down often open DC electromagnetic valve, passage is a through hole of opening on the sealing head peripheral wall.
Described have a throttling step-down often open DC electromagnetic valve, passage is made of axial bore that communicates with groove and the radial direction through hole that communicates with axial bore, described axial bore is opened the inside at sealing head, described radial direction through hole is opened on the peripheral wall of sealing head.
Described have a throttling step-down often open DC electromagnetic valve, porose diameter be 0.1-0.6mm, identical with caliber scope capillaceous.The size in hole and quantity can be decided according to the flow matches needs of solenoid valve.
The utility model is simple in structure, by open walk on sealing head, needn't use capillary tube and have the function of throttling step-down, has reduced the manufacture cost of solenoid valve, has improved the reliability of solenoid valve.
Description of drawings
Fig. 1 is the existing structural representation of often opening DC electromagnetic valve.
Opening state figure when Fig. 2 is existing solenoid valve and capillary paralleling.
Closed condition figure when Fig. 3 is existing solenoid valve and capillary paralleling.
Fig. 4 is a structural representation of the present utility model.
Fig. 5 is the another kind of structural drawing of the utility model sealing head.
Embodiment
Embodiment 1
As shown in Figure 4, the DC electromagnetic valve of often opening with throttling step-down comprises coil 1 and valve body 2, valve body comprises valve seat 28 and the sleeve pipe 21 that places on the valve seat, coil inside is stretched on the top of sleeve pipe, be provided with an end socket 22 in the sleeve pipe 21, its exterior edge face 22a pastes mutually with magnet case 11 1 interior edge face 11a, be provided with core iron parts in the sleeve pipe 21, these core iron parts are by core iron 24, sealing head 27, spring 25, attractor 26 is formed, they assemble in the usual way, seal attractor 26 and spring 25 that first side 27a passes ring-type, stretch into core iron 24 inside, be connected as a single entity by riveted joint and core iron 24, spring 25 is between core iron 24 and the attractor; 22 of core iron 24 and end sockets are provided with a magnetism resistent ring 23, and end socket, attractor, core iron adopt soft magnetic material.The lower end of described sealing head 27 is fluted 3, has the through hole 4 that communicates with groove 3 on the peripheral wall of sealing head 27, and the aperture is 0.5mm.
Embodiment 2
As shown in Figure 5, be to be located at passage on the sealing head 27 with embodiment 1 difference, it is made of axial bore 5 that communicates with groove 3 and the radial direction through hole 6 that communicates with axial bore 6, and described radial direction through hole 6 is opened on the peripheral wall of sealing head, and described axial bore 5 is opened the inside at sealing head.
Claims (4)
- What 1, have a throttling step-down often opens DC electromagnetic valve, comprise coil (1) and valve body (2), described valve body (2) has sealing head (27), and the lower end of sealing head (27) fluted (3) is characterized in that having on the described sealing head (27) passage that communicates with groove (3).
- 2, according to claim 1 have a throttling step-down often open DC electromagnetic valve, it is characterized in that described passage is a through hole (4) of opening on sealing head (27) peripheral wall.
- 3, according to claim 1 have a throttling step-down often open DC electromagnetic valve, it is characterized in that described passage is made of axial bore (5) that communicates with groove (3) and the radial direction through hole (6) that communicates with axial bore (5), described axial bore (5) is opened in the inside of sealing head (27), and described radial direction through hole (6) is opened on the peripheral wall of sealing head (27).
- 4, according to claim 2 or 3 described have a throttling step-down often open DC electromagnetic valve, it is characterized in that the diameter in described hole (4,5,6) is 0.1-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231177 CN2619099Y (en) | 2003-05-12 | 2003-05-12 | Normally open DC electromagnetic valve with throtting and voltage reducing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231177 CN2619099Y (en) | 2003-05-12 | 2003-05-12 | Normally open DC electromagnetic valve with throtting and voltage reducing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2619099Y true CN2619099Y (en) | 2004-06-02 |
Family
ID=34248002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231177 Expired - Lifetime CN2619099Y (en) | 2003-05-12 | 2003-05-12 | Normally open DC electromagnetic valve with throtting and voltage reducing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2619099Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476642B (en) * | 2008-01-03 | 2010-09-22 | 浙江三花股份有限公司 | Solenoid valve, air conditioner and throttling means used for solenoid valve |
| EP2267348A1 (en) | 2009-06-26 | 2010-12-29 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | A normally open solenoid valve and an assembling method thereof |
| EP2273167A1 (en) * | 2009-07-10 | 2011-01-12 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | A normally open solenoid valve and a manufacturing method thereof |
| CN101929563B (en) * | 2009-06-26 | 2013-03-13 | 浙江三花制冷集团有限公司 | Electromagnetic valve closed in electrified state |
| CN103375952A (en) * | 2012-04-16 | 2013-10-30 | 株式会社鹭宫制作所 | Throttle valve device |
-
2003
- 2003-05-12 CN CN 03231177 patent/CN2619099Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476642B (en) * | 2008-01-03 | 2010-09-22 | 浙江三花股份有限公司 | Solenoid valve, air conditioner and throttling means used for solenoid valve |
| EP2267348A1 (en) | 2009-06-26 | 2010-12-29 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | A normally open solenoid valve and an assembling method thereof |
| CN101929563B (en) * | 2009-06-26 | 2013-03-13 | 浙江三花制冷集团有限公司 | Electromagnetic valve closed in electrified state |
| EP2273167A1 (en) * | 2009-07-10 | 2011-01-12 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | A normally open solenoid valve and a manufacturing method thereof |
| CN103375952A (en) * | 2012-04-16 | 2013-10-30 | 株式会社鹭宫制作所 | Throttle valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130512 Granted publication date: 20040602 |