CN110195795B - The electromagnetic valve - Google Patents
The electromagnetic valve Download PDFInfo
- Publication number
- CN110195795B CN110195795B CN201910100199.8A CN201910100199A CN110195795B CN 110195795 B CN110195795 B CN 110195795B CN 201910100199 A CN201910100199 A CN 201910100199A CN 110195795 B CN110195795 B CN 110195795B
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- China
- Prior art keywords
- solenoid valve
- housing
- outer case
- plunger
- coil
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- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 description 14
- 239000003507 refrigerant Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Images
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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
本发明提供一种电磁阀，其能降低电磁线圈(25)的温度上升。用电磁驱动部(2)中的柱塞(22)下端的先导阀(22a)对活塞阀(5)的先导端口(5a)进行开闭地驱动活塞阀(5)。在电磁线圈(25)的周围的外箱(26)的底板外箱(26B)上设置具有弹性的磁性体的线圈导向件(3)。用圆筒部(31)与凸缘部(32)构成线圈导向件(3)。使圆筒部(31)的自然状态下的内径比柱塞壳体(21)的外径稍小，在柱塞壳体(21)的外周压入圆筒部(31)。使凸缘部(32)与底板外箱(26B)抵接。在圆筒部(31)与壳体支架部(1D)之间设置弹性部件(4)。
The present invention provides a solenoid valve, which can reduce the temperature rise of the solenoid coil (25). The piston valve (5) is driven by opening and closing the pilot port (5a) of the piston valve (5) by the pilot valve (22a) at the lower end of the plunger (22) in the electromagnetic drive part (2). A coil guide (3) having an elastic magnetic body is provided on the bottom plate outer case (26B) of the outer case (26) around the electromagnetic coil (25). A coil guide (3) is constituted by the cylindrical portion (31) and the flange portion (32). The inner diameter of the cylindrical portion (31) in the natural state is slightly smaller than the outer diameter of the plunger housing (21), and the cylindrical portion (31) is press-fitted to the outer periphery of the plunger housing (21). The flange portion (32) is brought into contact with the bottom plate outer case (26B). An elastic member (4) is provided between the cylindrical portion (31) and the housing bracket portion (1D).
Description
Technical Field
The present invention relates to a solenoid valve in which a valve body is driven by a plunger inserted into a plunger housing or the like of an electromagnetic driving portion.
Background
Conventionally, an electromagnetic valve of this type is disclosed in, for example, japanese patent application laid-open No. 2017-62044 (patent document 1). In this solenoid valve, a cylindrical portion (plunger housing) into which a plunger is inserted into an insertion hole in the center of an electromagnetic coil in an electromagnetic driving unit. A cylindrical portion of a lower plate (bottom plate outer box) which is a part of the outer box is inserted into the outer periphery of the cylindrical portion.
Documents of the prior art
Patent document 1: japanese laid-open patent publication No. 2017-62044
Here, the outer case of the electromagnetic drive unit is a structure for improving the efficiency of a magnetic circuit generated by the magnetic force generated by the electromagnetic coil, and is a structure for driving the plungers in the left and right plunger cases. Patent document 1 discloses a cylinder in which a bottom plate outer box (bottom plate) constituting a part of an outer box is inserted into an outer periphery of a plunger housing (cylindrical portion). Therefore, there is a possibility that a gap is generated between the plunger housing and the cylindrical portion, and the magnetic efficiency of the magnetic circuit may be reduced. The decrease in magnetic force efficiency requires an increase in current to be supplied to the electromagnetic coil by only the amount of the decrease, which causes a problem of further heat generation of the electromagnetic coil.
Disclosure of Invention
The invention provides a solenoid valve for reducing temperature rise of a solenoid.
The solenoid valve according to claim 1 includes an electromagnetic driving unit having a cylindrical housing into which a plunger is inserted, an electromagnetic coil into which the housing is inserted to drive the plunger, and an outer case fitted to the electromagnetic coil and made of a magnetic material, wherein the outer case is formed with an insertion hole through which the housing is inserted, and further includes a connection portion made of a magnetic material, the outer case and the plunger are magnetically connected in the vicinity of the insertion hole, and the housing is pressed from the periphery and brought into close contact with each other.
The electromagnetic valve according to claim 2 is the electromagnetic valve according to claim 1, wherein the connection portion has an annular portion through which the housing is inserted.
The solenoid valve according to claim 3 is the solenoid valve according to claim 1, wherein the connection portion is formed in a ring shape having an inner diameter smaller than an outer diameter of the housing in a natural state, and a slit is provided around a part of an axis of the housing from one end to the other end in the axis direction.
The electromagnetic valve according to claim 4 is the electromagnetic valve according to claim 2 or 3, wherein the connecting portion includes a cylindrical portion in close contact with the housing and a flange portion in contact with the outer box.
The solenoid valve according to claim 5 is the solenoid valve according to claim 2, wherein the connection portion is formed by a wire member made of a magnetic material having elasticity in a coil spring shape in a radial direction and an axial direction of the housing.
The solenoid valve according to claim 6 is the solenoid valve according to claim 5, wherein the connecting portion has a diameter-identical portion formed in a coil spring shape and in close contact with the housing, and an inclined portion in contact with the outer case.
The electromagnetic valve according to claim 7 is the electromagnetic valve according to any one of claims 1 to 3, and includes an elastic member that presses the connection portion against the outer box.
The solenoid valve according to claim 8 is the solenoid valve according to claim 1, wherein the connecting portion is integrally formed with the housing.
Effects of the invention
According to the solenoid valve of claims 1 to 8, since the connection portion made of the magnetic material magnetically connecting the outer case and the plunger is pressure-contacted to the housing into which the plunger is inserted, the connection portion is arranged in close proximity to the plunger, and the connection portion is pressure-contacted to the outer case, the efficiency of the magnetic circuit generated by the magnetic lines of force passing through the outer case made of the magnetic material and the connection portion made of the magnetic material is increased, the current applied to the solenoid coil is reduced, and the temperature rise of the solenoid coil can be reduced. Further, in the case where the connection portion magnetically connects the outer case and the plunger, the connection portion may be in contact with the outer case, or the connection portion may be integrated with the outer case.
Drawings
Fig. 1 is a longitudinal sectional view showing a closed state of a solenoid valve according to a first embodiment of the present invention.
Fig. 2 is a view from P-P of fig. 1.
Fig. 3 is a longitudinal sectional view and a plan view of a coil guide in the solenoid valve of the first embodiment.
Fig. 4 is a longitudinal sectional view showing a closed state of a solenoid valve according to a second embodiment of the present invention.
Fig. 5 is a view from P-P of fig. 4.
Fig. 6 is a side sectional view of a coil guide in the solenoid valve of the second embodiment.
Fig. 7 is a longitudinal sectional view showing a closed state of a solenoid valve according to a third embodiment of the present invention.
Fig. 8 is a view from P-P of fig. 7.
Fig. 9 is a three-side view of a bottom plate outer box in the solenoid valve according to the third embodiment.
In the figure: 1-main body part, 1A-primary side joint, 1B-secondary side joint, 1C-cylinder part, 1D-housing holder part, 12-main valve seat, 12 a-main valve port, 13-valve chamber, 2-electromagnetic drive part, 21-plunger housing (housing), 22-plunger, 22 a-pilot valve, 23-suction part, 24-plunger spring, 25-electromagnetic coil, 26-outer box, 26A-cup outer box, 26B-bottom plate outer box, 26A-side part, 26B-top plate part, 3-coil guide (connecting part), 31-cylinder part, 32-flange part, 31A-slit, 32 a-slit, 4-elastic part, 5-piston valve, 6-coil guide (connecting part), 7-coil guide (connecting part), 26B' -bottom plate outer box.
Detailed Description
Next, an embodiment of the solenoid valve according to the present invention will be described with reference to the drawings. The solenoid valve in each of the following embodiments is an example of a pilot type solenoid valve. Fig. 1 is a longitudinal sectional view of the solenoid valve of the first embodiment when it is not energized, fig. 2 is a view taken along the direction P-P of fig. 1, and fig. 3 is a longitudinal sectional view and a plan view of a coil guide in the solenoid valve of the first embodiment. The concept of "up and down" in the following description corresponds to up and down in the drawing of fig. 1. The solenoid valve of this embodiment includes a metal main body 1, an electromagnetic drive unit 2 provided on the upper portion of the main body 1, a coil guide 3 serving as a "connection portion" to be described later, and an elastic member 4.
The body portion 1 is configured by integrally forming, for example, a high-pressure primary side joint 1A into which a fluid such as a refrigerant flows, a secondary side joint 1B from which the fluid flows out, a cylinder portion 1C having an axis L orthogonal to the primary side joint 1A and the secondary side joint 1B as a central axis, and a housing bracket portion 1D coaxial with the cylinder portion 1C. Further, in the body 1, a partition wall 11 is formed between the primary side joint 1A and the secondary side joint 1B, and a main valve seat 12 is formed on the cylinder portion 1C side of the partition wall 11. A main valve port 12a having a circular opening is formed in the main valve seat 12, and a thin circular valve chamber 13 is formed around the main valve seat 12. The cylinder portion 1C is formed in a cylindrical shape having the axis L as a rotation center, and the housing holder portion 1D is formed in a cylindrical shape extending from the cylinder portion 1C toward the electromagnetic drive portion 2. A guide hole 14 having the same diameter as the main valve chamber 13 is formed in the cylinder portion 1C, and the substantially cylindrical piston valve 5 is inserted into the guide hole 14.
The piston valve 5 is integrally formed by press-fitting a metal (e.g., brass) piston portion 51 covering the outside and a resin (e.g., PTFE) seal portion 52 disposed inside the piston portion. The piston valve 5 is disposed to face the main valve port 12a, and an opening spring 53 is disposed in a compressed manner between the bottom of the valve chamber 13 and the piston valve 5. Then, the piston valve 5 is urged in a direction (valve opening direction) away from the main valve port 12a by the urging force of the valve opening spring 53. The seal portion 52 closes the main valve port 12a when the piston valve 5 is seated on the main valve seat 12. Further, a pilot port 5a and a communication passage 5B are formed in the center of the seal portion 52, and the pilot port 5a is communicated with the secondary side joint 1B through the communication passage 5B and the valve port 12 a. Further, around the pilot port 5a is a pilot valve seat 5a 1. A gap is provided between the piston valve 5 and the cylinder portion 1C, and fluid on the primary side joint 1A side can flow into the back space of the piston valve 5 through the gap.
The electromagnetic drive unit 2 includes a plunger housing 21 which is a cylindrical "housing" having the axis L as the center, a plunger 22 made of a magnetic material inserted into the plunger housing 21, an attraction piece 23 made of a magnetic material fixed to the upper end of the plunger housing 21, a plunger spring 24 disposed between the plunger 22 and the attraction piece 23, an electromagnetic coil 25 in which a cylindrical coil is sealed (enclosed) with a resin material, and an outer case 26 made of an iron plate which is a magnetic member fitted to the outer periphery of the electromagnetic coil 25.
The outer box 26 includes a cup-shaped outer box 26A formed of a magnetic material and having a bottom, and a bottom plate outer box 26B formed of a magnetic material and having an outer peripheral portion fitted to an opening of the cup-shaped outer box 26A. The cup-shaped outer box 26A is composed of a cylindrical side surface portion 26A and a top plate portion 26b corresponding to the bottom of the cup shape. The electromagnetic coil 25 is disposed in the cup-shaped outer box 26A, and the bottom plate outer box 26B is fitted into the opening of the cup-shaped outer box 26A in a state where the lead wire holding portion 25a of the electromagnetic coil 25 is fitted into the rectangular cutout portion 26c of the bottom plate outer box 26B. Thus, the electromagnetic coil 25 is covered by the cup-shaped outer box 26A and the bottom plate outer box 26B, and is sandwiched between the top plate portion 26B and the bottom plate outer box 26B, and the bottom plate outer box 26B is in contact with the bottom surface of the electromagnetic coil 25. The electromagnetic coil 25 has a center hole 25a at the center thereof into which the plunger housing 21 is inserted. A center hole 26d into which the plunger housing 21 is inserted is formed in the bottom plate outer case 26B, and a screw hole 26e for tightening the suction tool 23 with a screw N is formed in the top plate 26B.
The plunger housing 21 is fitted into the housing holder 1D, and the plunger housing 21 is fixed to the periphery of the end of the housing holder 1D by brazing or the like. The plunger 22 is disposed slidably in the direction of the axis L (vertical direction) in the plunger housing 21. A pilot valve 22a formed of a ball is fixed to a lower end of the plunger 22 by caulking, and the pilot valve 22a opens and closes a pilot port 5a of the piston valve 5.
With the above configuration, the solenoid valve of the embodiment is provided in the refrigeration cycle, and the high-pressure refrigerant of the primary side joint 1A flows in and the refrigerant flows out from the secondary side joint 1B. When the electromagnetic coil 25 is not energized (non-energized), the state is shown in fig. 1, and the plunger 22 is positioned away from the suction element 23 by the biasing force of the plunger spring 24 and the weight of the plunger 24. This is a state in which the pilot valve 22a closes the pilot port 5 a. The piston valve 5 descends together with the plunger valve 22a to close the main valve port 12a, thereby blocking the passage of the refrigerant. At this time, the back space of the piston valve 5 is at a high pressure, and the valve-closed state by the piston valve 5 can be reliably maintained.
When the electromagnetic coil 25 is energized, a suction force is generated between the suction tool 23 and the plunger 22, the plunger 22 rises, and the plunger valve 22a moves away from the pilot port 5 a. Thereby, the back space of the piston valve 5 is conducted to the secondary side joint 1B to be low pressure. Thus, the piston valve 5 is separated from the main valve port 12a to be in an open valve state by a lift force generated by a pressure difference between the back space of the piston valve 5 and the inside of the primary side joint 1A and a spring force of the valve opening spring 53, and the refrigerant flows from the primary side joint 1A to the secondary side joint 1B.
As shown in fig. 3, the coil guide 3 is formed by processing a metal plate made of an elastic magnetic material by press working or the like, and integrally forms a cylindrical portion 31 having an axis L as a center and a substantially annular flange portion 32 connected to an end of the cylindrical portion 31 and having the axis L as a center. Slits 31a and 32a are formed at one position of the cylindrical portion 31 and the flange portion 32, respectively. In a natural state of the coil guide 3 before being attached to the solenoid valve, the inner diameters of the cylindrical portion 31 and the flange portion 32 are the same diameter, and the inner diameter is slightly smaller than the outer diameter of the plunger housing 21. The coil guide 3 is press-fitted to the outer periphery of the plunger housing 21 with the flange portion 32 as the electromagnetic coil 25 side, and the flange portion 32 is disposed in parallel with the bottom plate outer case 26B of the outer case 26 and abuts against the bottom plate outer case 26B. An elastic member 4 is fitted into the outer periphery of the plunger housing 21. The elastic member 4 is an annular elastic member such as rubber, and is disposed between the lower end surface of the cylindrical portion 31 of the coil guide 3 and the upper end surface of the housing bracket portion 1D in a state of being compressed in the direction of the axis L. The elastic member 4 urges the case holder 1D side as a fixed end together with the coil guide 3 toward the electromagnetic coil 25 side toward the bottom plate outer case 26b by its elastic force. Thereby, the flange portion 32 of the coil guide 3 is pressed against the bottom plate outer box 26B of the outer box 26.
As described above, the coil guide 3 is pressed against the plunger housing 21 by the elastic force of the cylindrical portion 31 and the flange portion 32, and therefore the coil guide 3 is disposed very close to the plunger 22. Further, since the flange portion 32 of the coil guide 3 electrically connecting the outer case 26 and the plunger 22 is pressed against the bottom plate outer case 26B of the outer case 26 by the elastic force of the elastic member 4, no gap is generated between the coil guide 3 and the bottom plate outer case 26B. Therefore, the efficiency of the magnetic circuit generated by the magnetic lines of force passing through the outer case 26 made of a magnetic body and the coil guide 3 made of a magnetic body is increased, and the temperature rise of the electromagnetic coil 25 can be reduced by reducing the current flowing through the electromagnetic coil 25.
Fig. 4 is a longitudinal sectional view of a valve-closed state of the solenoid valve of the second embodiment, and fig. 6 is a side sectional view of a coil guide of the solenoid valve of the second embodiment. In the following second and third embodiments, the same elements as those in the first embodiment are configured to perform the same functions, and the same components in the drawings in the second and third embodiments are denoted by the same reference numerals as those in fig. 1, and overlapping descriptions are appropriately omitted.
The second embodiment differs from the first embodiment in the structure of the coil guide 6 serving as a "connecting portion" and in the absence of the elastic member 4. As shown in fig. 5, the coil guide 6 is formed by a wire material made of a magnetic material having elasticity in a coil spring shape in the radial direction and the axis L direction. The coil guide 6 has a constant diameter portion 61 having an inner diameter smaller than the outer diameter of the plunger 21 in a natural state before being attached to the solenoid valve, and a tapered portion 62 having a truncated cone shape connected to the constant diameter portion 61. The coil guide 6 is configured such that the inclined portion 62 is pressed into the outer periphery of the plunger housing 21 with the same diameter portion 61 as the electromagnetic coil 25 side, and the inclined portion 62 is compressed and disposed in parallel with the bottom plate outer box 26B of the outer box 26, and abuts against the bottom plate outer box 26B. The inclined portion 62 is pressed against the bottom plate outer box 26B of the outer box 26 by its own elastic force in the direction of the axis L in the assembled state. That is, in a state of being attached to the solenoid valve, the same diameter portion 61 comes into close contact with the plunger housing 21, and the inclined portion 62 comes into contact with the bottom plate outer box 26B.
As described above, since the coil guide 6 is pressed against the plunger housing 21 by the elastic force of the diameter portion 61 and the inclined portion 62, the coil guide 6 electrically connecting the outer case 26 and the plunger 22 is disposed very close to the plunger 22. Further, since the inclined portion 62 of the coil guide 6 is pressed against the bottom plate outer case 26B of the outer case 26, no gap is generated between the coil guide 6 and the bottom plate outer case 26B. Therefore, the efficiency of the magnetic circuit generated by the magnetic lines of force passing through the outer case 26 made of a magnetic body and the coil guide 6 made of a magnetic body is increased, and the temperature rise of the electromagnetic coil 25 can be reduced by reducing the current flowing through the electromagnetic coil 25.
Fig. 7 is a longitudinal sectional view showing a valve-closed state of the solenoid valve according to the third embodiment, and fig. 9 is a three-side view of a bottom plate outer box of the solenoid valve according to the third embodiment. The third embodiment differs from the first embodiment in the structure of the coil guide 7 serving as a "connecting portion", and the coil guide 7 in the third embodiment is configured as a part of the bottom plate outer case 26B' of the outer case 26. The bottom plate outer case 26B' is formed of a magnetic body having elasticity in the radial direction, and abuts against the bottom surface of the electromagnetic coil 25 inside the opening of the cup-shaped outer case 26A, as in the first embodiment. The floor outer box 26B' is configured such that the coil guide 7 is integrally formed at the center thereof. The coil guide 7 is formed of a cylindrical portion having the axis L as the center at the center thereof, and slits 7a and 26f are formed at one position of the coil guide 7 and the bottom plate outer case 26B'. Further, the coil guide 7 has a slit 7b formed at another position opposite to the slit 26 f. In a natural state before the base plate outer box 26B' and the coil guide 7 are attached to the solenoid valve, the inner diameter of the cylindrical portion is slightly smaller than the outer diameter of the plunger housing 21. The coil guide 7 is press-fitted to the outer periphery of the plunger housing 21 in a state where the bottom plate outer case 26B' is attached to the electromagnetic coil 25. The elastic member 4 similar to the first embodiment is fitted into the outer periphery of the plunger housing 21 and is disposed between the electromagnetic coil 25 and the upper end surface of the housing holder portion 1D. The elastic member 4 urges the case holder 1D side as a fixed end toward the electromagnetic coil 25 side by its elastic force to the bottom plate outer case 26B' and the coil guide 7.
As described above, since the coil guide 7 is pressed against the plunger housing 21 by the elastic force of the cylindrical portion thereof, the coil guide 7 electrically connecting the outer case 26 and the plunger 22 is disposed very close to the plunger 22. The bottom plate outer case 26B' and the coil guide 7 are pressed against the electromagnetic coil 25 by the elastic force of the elastic member 4. Therefore, the efficiency of the magnetic circuit generated by the magnetic flux passing through the case 26 made of a magnetic material and the coil guide 7 made of a magnetic material is increased, and the temperature rise of the electromagnetic coil 25 can be reduced by reducing the current flowing through the electromagnetic coil 25.
While the embodiments of the present invention have been described in detail with reference to the drawings, the specific configurations are not limited to these embodiments, and design changes and the like without departing from the scope of the present invention are also included in the present invention.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-032096 | 2018-02-26 | ||
| JP2018032096A JP6850750B2 (en) | 2018-02-26 | 2018-02-26 | solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110195795A CN110195795A (en) | 2019-09-03 |
| CN110195795B true CN110195795B (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910100199.8A Active CN110195795B (en) | 2018-02-26 | 2019-01-31 | The electromagnetic valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6850750B2 (en) |
| CN (1) | CN110195795B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7462964B2 (en) | 2021-11-17 | 2024-04-08 | 株式会社不二工機 | Pilot Operated Solenoid Valve |
| JP2024166657A (en) * | 2023-05-19 | 2024-11-29 | 株式会社鷺宮製作所 | Slide type switching valve and refrigeration cycle system |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB566211A (en) * | 1943-06-09 | 1944-12-19 | British Thermostat Co Ltd | Improvements in or relating to valves for controlling the flow of fluids |
| JPS5824695Y2 (en) * | 1978-07-05 | 1983-05-27 | 東芝熱器具株式会社 | Fuel filler opening/closing device |
| JPS5932087Y2 (en) * | 1980-07-01 | 1984-09-10 | 焼結金属工業株式会社 | solenoid |
| JPS6069876U (en) * | 1983-10-19 | 1985-05-17 | 東芝熱器具株式会社 | electromagnetic device |
| JP2731305B2 (en) * | 1991-10-02 | 1998-03-25 | シーケーディ株式会社 | Solenoid valve and method of manufacturing solenoid valve |
| JP2984493B2 (en) * | 1992-11-16 | 1999-11-29 | シーケーディ株式会社 | solenoid valve |
| JP2003059715A (en) * | 2001-08-13 | 2003-02-28 | Smc Corp | Electromagnetic valve solenoid |
| JP4456623B2 (en) * | 2007-08-09 | 2010-04-28 | 株式会社鷺宮製作所 | Normally open solenoid valve and air conditioner |
| JP2009085394A (en) * | 2007-10-02 | 2009-04-23 | Taisei Kogyo Kk | Solenoid valve and passage switching device |
| CN201193727Y (en) * | 2008-05-09 | 2009-02-11 | 孙光锋 | Low power mini valve |
| JP5457153B2 (en) * | 2009-12-03 | 2014-04-02 | 株式会社鷺宮製作所 | solenoid valve |
| CN201795144U (en) * | 2010-09-30 | 2011-04-13 | 浙江春晖智能控制股份有限公司 | Energy-saving DC electromagnetic valve |
| CN202252255U (en) * | 2011-08-29 | 2012-05-30 | 宁波开灵气动元件制造有限公司 | Normally open direct-acting solenoid valve |
| WO2013029903A1 (en) * | 2011-09-01 | 2013-03-07 | Rausch & Pausch Gmbh | Seal, and control device having said seal |
| JP5987115B2 (en) * | 2013-07-23 | 2016-09-07 | 株式会社鷺宮製作所 | Fluid control valve provided with electromagnetic coil and method for fixing the electromagnetic coil unit |
| WO2015072106A1 (en) * | 2013-11-15 | 2015-05-21 | 株式会社鷺宮製作所 | Solenoid valve |
| CN104976406B (en) * | 2014-04-01 | 2018-09-07 | 浙江三花制冷集团有限公司 | A kind of solenoid valve |
| CN106641395B (en) * | 2016-12-22 | 2024-04-09 | 上海巨良阀门集团有限公司 | Knife switch type high-temperature high-pressure zero leakage electromagnetic valve |
-
2018
- 2018-02-26 JP JP2018032096A patent/JP6850750B2/en active Active
-
2019
- 2019-01-31 CN CN201910100199.8A patent/CN110195795B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110195795A (en) | 2019-09-03 |
| JP6850750B2 (en) | 2021-03-31 |
| JP2019148279A (en) | 2019-09-05 |
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