CN112081981B - Electromagnetic valve, proportional valve assembly and water heater - Google Patents
Electromagnetic valve, proportional valve assembly and water heater Download PDFInfo
- Publication number
- CN112081981B CN112081981B CN201910516902.3A CN201910516902A CN112081981B CN 112081981 B CN112081981 B CN 112081981B CN 201910516902 A CN201910516902 A CN 201910516902A CN 112081981 B CN112081981 B CN 112081981B
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- China
- Prior art keywords
- piston
- piston rod
- outer ring
- ring piston
- inner ring
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- 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
- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Abstract
The invention discloses an electromagnetic valve, a proportional valve assembly and a water heater. The electromagnetic valve includes: an electromagnetic generating section; the piston rod is movably inserted in the electromagnetic generating part; an elastic member biasing the piston rod in a first direction, the first direction being a direction in which the piston rod extends out of the electromagnetic generating portion; the piston piece comprises an outer ring piston and an inner ring piston, the outer ring piston is in airtight connection with the inner ring piston through a flexible element, the outer ring piston is fixed at the first end of the piston rod, and the first end is exposed out of the electromagnetic generating part; the outer ring piston includes a magnetic material. The electromagnetic valve is provided with the separated inner and outer ring pistons, so that the problem that the valve port is difficult to open by the piston piece due to the difference between the inner pressure and the outer pressure of the piston piece is avoided. The proportional valve assembly and the water heater comprising the same have the advantage of being easy to open the gas outlet.
Description
Technical Field
The invention relates to the field of gas water heaters, in particular to an electromagnetic valve, a proportional valve assembly and a water heater.
Background
The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water.
The basic working principle of the gas water heater is that cold water enters the water heater, flows through the water-gas linkage valve body, pushes the water-gas linkage valve under the action of a certain pressure difference of the flowing water bucket, and simultaneously pushes the direct-current power supply microswitch to switch on the power supply and start the pulse igniter, and simultaneously opens the gas transmission electromagnetic valve.
However, due to the pressure difference across the gas delivery solenoid valve, there may be situations where the valve is not open or the valve responds in a non-timely manner. This may cause the water heater proportional valve assembly to fail to operate, and the complete machine fails to ignite, thereby causing a failure.
Disclosure of Invention
The invention aims to overcome the defect that a gas transmission electromagnetic valve cannot be opened in the prior art, and provides an electromagnetic valve, a proportional valve assembly and a water heater.
The invention solves the technical problems through the following technical scheme:
a solenoid valve, comprising:
an electromagnetic generating section;
the piston rod is movably inserted in the electromagnetic generating part;
an elastic member biasing the piston rod in a first direction, the first direction being a direction in which the piston rod extends out of the electromagnetic generating portion;
the piston piece comprises an outer ring piston and an inner ring piston, the outer ring piston is in airtight connection with the inner ring piston through a flexible element, the outer ring piston is fixed at the first end of the piston rod, and the first end is exposed out of the electromagnetic generating part;
the outer ring piston includes a magnetic material.
Preferably, the inner ring piston is further provided with a hooking piece, and the hooking piece is used for hooking the outer ring piston.
Preferably, the hooking member includes a hook portion and a connecting portion, the connecting portion being connected to a surface of the inner ring piston facing the electromagnetic generating portion, the hook portion extending from the connecting portion toward an outer periphery and partially overlapping the outer ring piston in the first direction.
Preferably, the end face of the first end of the piston rod is provided with a groove, and the hooking piece is located in the groove.
Preferably, the groove communicates with the outside of the piston rod.
Preferably, the first end of the piston rod is provided with an annular connecting part;
the annular connection portion includes: the rib plate is connected with the inner side surface of the cylinder and the rod body of the piston rod, and an opening for communicating the inside and the outside of the annular connecting part is formed in the rib plate;
the annular connecting portion forms the groove.
Preferably, the flexible element is a rubber sheet.
Preferably, the inner ring piston comprises a magnetic material and the piston rod is made of a non-magnetic material.
Preferably, the electromagnetic generating portion includes a coil in which the second end of the piston rod is disposed; the piston rod includes a soft magnetic material, and the inner ring piston is made of a non-magnetic material.
Preferably, the electromagnetic generating portion includes a coil and an iron core, and the iron core is cylindrical and is sleeved at the second end of the piston rod.
A proportioning valve assembly including a solenoid valve as described above, said piston member being adapted to block a gas outlet of said proportioning valve assembly.
Preferably, the gas outlet is provided with an inner ring valve seat and an outer ring valve seat, the outer ring valve seat is annularly arranged on the periphery of the inner ring valve seat, the inner ring valve seat is abutted to the inner ring piston, and the outer ring valve seat is abutted to the outer ring piston.
A water heater comprising a proportional valve assembly as described above.
The positive progress effects of the invention are as follows: the electromagnetic valve is provided with the separated inner and outer ring pistons, so that the problem that the valve port is difficult to open by the piston piece due to the difference between the inner pressure and the outer pressure of the piston piece is avoided. The proportional valve assembly and the water heater comprising the same have the advantage of being easy to open the gas outlet.
Drawings
Fig. 1 is a perspective view schematically illustrating a solenoid valve according to a preferred embodiment of the present invention.
Fig. 2 is a schematic sectional structure view of a solenoid valve according to a preferred embodiment of the present invention.
Fig. 3 is a perspective view of a hook member according to a preferred embodiment of the present invention.
Fig. 4 is a front view schematically illustrating the structure of the piston rod according to the preferred embodiment of the present invention.
FIG. 5 is a perspective view of a proportional valve assembly according to a preferred embodiment of the present invention.
FIG. 6 is a schematic cross-sectional view of a proportional valve assembly according to a preferred embodiment of the present invention.
Description of reference numerals:
Piston rod 120
Piston member 140
Hook 151
Connecting part 152
Outer ring valve seat 201
Inner race valve seat 202
Detailed Description
The present invention is further illustrated by way of example and not by way of limitation in the scope of the following examples in connection with the accompanying drawings.
As shown in fig. 1-2, the solenoid valve 100 includes: electromagnetism generating part 110, piston rod 120, elastic member 130, piston member 140.
The electromagnetic generating portion 110 generates an electromagnetic field.
In the present embodiment, the electromagnetic generating portion 110 includes a coil 113 and a case 111. The coil 113 is disposed inside the case 111. When the coil 113 is energized, an electromagnetic field is generated. The housing 111 is provided with an insertion hole 112 allowing the piston rod 120 to move.
The piston rod 120 is movably inserted in the electromagnetic generating portion 110. By "movably" it is meant that the piston rod 120 can move back and forth in the insertion hole 112 along its axial direction.
The elastic member 130 biases the piston rod 120 in a first direction, which is a direction in which the piston rod 120 extends out of the electromagnetic generating portion 110.
In the present embodiment, the elastic element 130 is a spring sleeved on the first end 121 of the piston rod 120 (the end of the piston rod 120 exposed from the electromagnetic generating portion 110). The present invention is not limited thereto and those skilled in the art may change the form and arrangement of the elastic member 130 as needed as long as it can achieve the biasing of the piston rod 120 in the first direction.
The piston member 140 comprises an outer ring piston 141 and an inner ring piston 142, the outer ring piston 141 being in gas tight connection with the inner ring piston 142 via a flexible element 143, the outer ring piston 141 being fixed to the first end 121 of the piston rod 120. By "gas-tight connection" is meant that there is no passage for any gas communication between the outer ring piston 141 and the inner ring piston 142, i.e. the gap between the outer ring piston 141 and the inner ring piston 142 is completely covered by the flexible element 143. The flexible member 143 refers to a member made of a deformable material, such as a rubber sheet or the like.
In this embodiment, the inner ring piston 142 is further provided with a hooking element 150, and the hooking element 150 is used for hooking the outer ring piston 141. When outer-ring piston 141 moves in a second direction (opposite to the first direction), hook 150 on inner-ring piston 142 may hook outer-ring piston 141, so that inner-ring piston 142 follows outer-ring piston 141 to move in the second direction.
In other embodiments, the hook 150 may not be provided, and the inner-ring piston 142 may move to the second direction along with the outer-ring piston 141 by means of the pulling force of the flexible element 143.
As shown in fig. 3, the hooking member 150 includes a hook portion 151 and a connecting portion 152, and the connecting portion 152 is connected to a surface of the inner ring piston 142 facing the electromagnetic generating portion 110. The hook portion 151 extends from the connecting portion 152 toward the outer periphery and partially overlaps the outer-ring piston 141 in the first direction.
In the embodiment, the hooking element 150 is a circular ring-shaped member shown in fig. 3, but the present invention is not limited thereto, and the hooking element 150 may be in the form of one or more hooks or the like provided on the inner-ring piston 142, so long as it can hook the inner-ring piston 142 and the outer-ring piston 141 when the piston element 140 moves in the second direction.
As shown in fig. 4, the end surface of the first end 121 of the piston rod 120 is provided with a groove, and the hooking member 150 is located in the groove. The groove communicates with the outside of the piston rod 120.
The first end 121 of the piston rod 120 is provided with an annular connection 152. The annular connection portion 152 includes: the hollow cylinder 123 and the rib 124, the rib 124 connects the inner side of the cylinder 123 and the rod body of the piston rod 120, and the opening 125 communicating the inside and the outside of the annular connecting part 152 is formed on the rib 124. The annular connecting portion 152 forms a groove.
In the present embodiment, outer ring piston 141 includes a magnetic material. The magnetic material may be magnetic plastic or natural magnetite. The inclusion of magnetic material herein means that outer ring piston 141 may be made entirely or partially of magnetic material. And the piston rod 120 is made of a non-magnetic material. Preferably, the piston rod 120 is made of plastic, which is light in weight to facilitate movement of the piston rod 120.
Alternatively, inner ring piston 142 may also comprise a magnetic material. In this way, the inner ring piston 142 is also able to move under the influence of the electromagnetic field, which is more advantageous for the opening of the piston member 140.
Optionally, the electromagnetic generating portion 110 may further include an iron core (not shown), which is cylindrical and is sleeved on the second end 122 of the piston rod 120. The iron core may increase the intensity of the magnetic field generated by the electromagnetic generating portion 110. The core is made of soft magnetic material, such as pure iron and mild steel, which have been widely used in the prior art and will not be described herein.
Alternatively, the plunger may be a cylinder, and the second end 122 of the piston rod 120 is hollow, and the cylinder is inserted into the second end 122 of the piston rod 120.
The mode of operation of the solenoid valve 100 is briefly described below.
Fig. 2 illustrates an initial state of the solenoid valve 100 when it is not energized. After the coil 113 is energized, an electromagnetic field is generated, and the generated electromagnetic field is attracted to the outer-ring piston 141, so that the outer-ring piston 141 moves in the second direction against the biasing force of the elastic member 130 under the action of the electromagnetic field, and because the inner-ring piston 142 and the outer-ring piston 141 are connected through the flexible member 143, the inner-ring piston 142 does not affect the movement of the outer-ring piston 141 in the initial state until the outer-ring piston 141 abuts against the hook member 150, the outer-ring piston 141 drives the inner-ring piston 142 to move in the second direction, so that the inner-ring piston 142 and the outer-ring piston 141 simultaneously move in the second direction, and the piston member 140 opens the closed opening thereof. Since outer-ring piston 141 and inner-ring piston 142 are opened in series, the influence of the pressure difference acting across piston member 140 on the movement of piston member 140 is reduced. If the inner ring piston 142 also contains magnetic material, the inner ring piston 142 would theoretically move later than the outer ring piston 141 due to the effect of the pressure differential across the piston member 140, but the inner ring piston 142 would move more easily than if it did not contain magnetic material.
The present embodiment also provides a proportional valve assembly 200. The proportional valve assembly 200 includes the solenoid valve 100 as above, and the piston member 140 is used to block the gas outlet of the proportional valve assembly 200.
The gas outlet is provided with an inner ring valve seat 202 and an outer ring valve seat 201, the outer ring valve seat 201 is arranged on the periphery of the inner ring valve seat 202 in a surrounding mode, the inner ring valve seat 202 is abutted to the inner ring piston 142, and the outer ring valve seat 201 is abutted to the outer ring piston 141.
Fig. 5-6 illustrate a proportional valve assembly 200 according to the present embodiment. The principle of operation of the present invention is further illustrated by the proportional valve assembly 200.
As shown in fig. 6, in the initial state, the outer-ring piston 141 abuts against the outer-ring valve seat 201, and the inner-ring piston 142 abuts against the inner-ring valve seat 202. When the coil 113 is energized, the outer-ring piston 141 moves toward the second direction against the biasing force of the elastic member 130 under the action of the electromagnetic field, and since only the outer-ring piston 141 moves and the inner-ring piston 142 does not move, the resistance of the pressure difference of the outer-ring piston 141 is smaller than the pressure difference borne by the entire piston member 140, the outer-ring piston 141 moves more easily to separate from the outer-ring valve seat 201, and then the outer-ring piston 141 abuts against the hook member 150 to drive the inner-ring piston 142 to move together toward the second direction, so that the inner-ring piston 142 also separates from the inner-ring valve seat 202.
The proportional valve assembly 200 reduces the influence of the internal and external pressure difference of the gas outlet on the opening of the invention by using the electromagnetic valve 100, so that the valve of the proportional valve assembly 200 is easier to open and has more timely response.
The present embodiment also provides a water heater including the above proportional valve assembly 200.
Example 2
Embodiment 2 provides a solenoid valve having substantially the same structure as the solenoid valve 100 of embodiment 1, except that: the piston rod includes a soft magnetic material, and the inner ring piston is made of a non-magnetic material.
Thus, the piston rod acts as an iron core of the coil, and the magnetic field strength of the electromagnetic generating portion is enhanced. And the inner ring piston is made of non-magnetic materials, so that the piston rod cannot influence the inner ring piston.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention unless otherwise specified herein.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (13)
1. A solenoid valve, characterized in that it comprises:
an electromagnetic generating section;
the piston rod is movably inserted in the electromagnetic generating part;
an elastic member biasing the piston rod in a first direction, the first direction being a direction in which the piston rod extends out of the electromagnetic generating portion;
the piston piece comprises an outer ring piston and an inner ring piston, the outer ring piston is in airtight connection with the inner ring piston through a flexible element, the outer ring piston is fixed at the first end of the piston rod, and the first end is exposed out of the electromagnetic generating part;
the outer ring piston includes a magnetic material.
2. The electromagnetic valve according to claim 1, wherein the inner ring piston is further provided with a hooking piece for hooking the outer ring piston.
3. The electromagnetic valve according to claim 2, wherein the hooking member includes a hooking portion and a connecting portion, the connecting portion being connected to a surface of the inner ring piston facing the electromagnetic generating portion, the hooking portion extending from the connecting portion toward an outer periphery and partially overlapping the outer ring piston in the first direction.
4. The solenoid valve of claim 2, wherein the end surface of the first end of the piston rod is provided with a groove, and the hooking member is located in the groove.
5. The solenoid valve according to claim 4, wherein said groove communicates with the exterior of said piston rod.
6. The solenoid valve according to claim 5, characterized in that the first end of the piston rod is provided with an annular connection;
the annular connection portion includes: the rib plate is connected with the inner side surface of the cylinder and the rod body of the piston rod, and an opening for communicating the inside and the outside of the annular connecting part is formed in the rib plate;
the annular connecting portion forms the groove.
7. The solenoid valve of claim 1 wherein said flexible member is a rubber sheet.
8. The solenoid valve of claim 1 wherein said inner ring piston comprises a magnetic material and said piston rod is made of a non-magnetic material.
9. The solenoid valve according to claim 1, wherein said solenoid generating portion comprises a coil, said second end of said piston rod being disposed in said coil; the piston rod includes a soft magnetic material, and the inner ring piston is made of a non-magnetic material.
10. The solenoid valve according to claim 1, wherein said electromagnetic generating portion comprises a coil and an iron core, said iron core being cylindrical and sleeved on said second end of said piston rod.
11. A proportioning valve assembly including a solenoid valve according to any one of claims 1 to 10, said piston member being adapted to block a gas outlet of said proportioning valve assembly.
12. The proportioning valve assembly of claim 11 wherein said gas outlet is provided with an inner ring valve seat and an outer ring valve seat, said outer ring valve seat being disposed around an outer periphery of said inner ring valve seat, said inner ring valve seat abutting said inner ring piston, said outer ring valve seat abutting said outer ring piston.
13. A water heater including a proportioning valve assembly according to claim 11 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516902.3A CN112081981B (en) | 2019-06-14 | 2019-06-14 | Electromagnetic valve, proportional valve assembly and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516902.3A CN112081981B (en) | 2019-06-14 | 2019-06-14 | Electromagnetic valve, proportional valve assembly and water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112081981A CN112081981A (en) | 2020-12-15 |
| CN112081981B true CN112081981B (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910516902.3A Active CN112081981B (en) | 2019-06-14 | 2019-06-14 | Electromagnetic valve, proportional valve assembly and water heater |
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| Country | Link |
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| CN (1) | CN112081981B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2869474Y (en) * | 2005-05-22 | 2007-02-14 | 陈国平 | Multifunctional valve |
| CN100427818C (en) * | 2004-04-23 | 2008-10-22 | 喜开理株式会社 | Flow rate characteristic adjustment mechanism of solenoid proportional valve and flow rate characteristic adjustment method using the same |
| CN101324289B (en) * | 2007-06-13 | 2010-08-25 | Smc株式会社 | Solenoid valve |
| CN202074099U (en) * | 2011-04-27 | 2011-12-14 | 黄依华 | Gas proportioning valve adjusting structure |
| CN204477337U (en) * | 2014-12-31 | 2015-07-15 | 中山市思源电器有限公司 | A kind of gas ratio valve improving sealing |
| CN207945338U (en) * | 2018-03-09 | 2018-10-09 | 温州大阳科技有限公司 | A kind of magnetic holding impulse electromagnetic valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4105705A1 (en) * | 1991-02-21 | 1992-09-03 | Mannesmann Ag | VALVE DEVICE |
| CN208204096U (en) * | 2017-11-23 | 2018-12-07 | 南京中车浦镇海泰制动设备有限公司 | A kind of high frequency mo pneumatic operated valve |
-
2019
- 2019-06-14 CN CN201910516902.3A patent/CN112081981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427818C (en) * | 2004-04-23 | 2008-10-22 | 喜开理株式会社 | Flow rate characteristic adjustment mechanism of solenoid proportional valve and flow rate characteristic adjustment method using the same |
| CN2869474Y (en) * | 2005-05-22 | 2007-02-14 | 陈国平 | Multifunctional valve |
| CN101324289B (en) * | 2007-06-13 | 2010-08-25 | Smc株式会社 | Solenoid valve |
| CN202074099U (en) * | 2011-04-27 | 2011-12-14 | 黄依华 | Gas proportioning valve adjusting structure |
| CN204477337U (en) * | 2014-12-31 | 2015-07-15 | 中山市思源电器有限公司 | A kind of gas ratio valve improving sealing |
| CN207945338U (en) * | 2018-03-09 | 2018-10-09 | 温州大阳科技有限公司 | A kind of magnetic holding impulse electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112081981A (en) | 2020-12-15 |
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