US20150090911A1 - Latch valve and flow control device using the same - Google Patents
Latch valve and flow control device using the same Download PDFInfo
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- US20150090911A1 US20150090911A1 US14/567,596 US201414567596A US2015090911A1 US 20150090911 A1 US20150090911 A1 US 20150090911A1 US 201414567596 A US201414567596 A US 201414567596A US 2015090911 A1 US2015090911 A1 US 2015090911A1
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- United States
- Prior art keywords
- plunger
- latch valve
- outflow path
- support body
- latch
- 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.)
- Abandoned
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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
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
- F16K31/404—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm the discharge being effected through the diaphragm and being blockable by an electrically-actuated member making contact with the diaphragm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86928—Sequentially progressive opening or closing of plural valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
Definitions
- the present invention relates to a structure of a latch valve capable of controlling a flow rate and a flow control device using the latch valve, and more particularly, to a latch valve for minimizing power consumption and a flow control device using the same.
- a flow control device uses a stepping motor or a plurality of solenoid valves to control a flow rate. For example, power is supplied, so the solenoid valves or the stepping motor is operated by using the supplied power to control a flow rate.
- the related art bidet controls a flow rate by using a solenoid valve as shown in FIG. 1 .
- a plunger 22 is usually in contact with a support body 21 of a diaphragm 20 by virtue of an elastic force of a spring 5 to block an outlet path 15 , and when electricity is applied to a solenoid SL, the plunger 22 is lifted up by a magnetic force generated from the solenoid SL, allowing water introduced from an inflow path 10 to flow out to the outflow path 15 through a space part 30 .
- the plunger 30 blocks the outlet path 15 when no electricity is supplied to the solenoid SL, so electrically is constantly supplied in an open state.
- a flow rate can be controlled by using the solenoid valve 1 .
- power is generated by using water introduced into a self-generation bidet and the bidet is controlled by using generated power. In this case, however, the amount of electricity generated by the introduced water is too small to operate the solenoid valve 1 .
- a latch valve 2 adaptive to use less power is illustrated in FIG. 2 .
- a magnetic force induced by supplying electricity to a coil of a solenoid SL lifts the plunger 22 up, against the elastic force of the spring 5 , and in this case, the plunger 22 can be maintained in an open position by virtue of the magnetic force of a permanent magnet (M), although electricity is not supplied to the solenoid SL.
- M permanent magnet
- the present invention has been made to address at least the above problems and/or disadvantages and to provide at least the advantages described below.
- An aspect of the present invention is to provide a latch valve consuming less power, having a simpler structure, and guaranteeing reliable valve operation, and a flow control device using the same.
- the latch valve may comprise an inflow path and an outflow path formed in a housing; a solenoid having a coil wound thereon; a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted; a spring positioned between the permanent magnet and the plunger; a support body having an inlet connected to the inflow path and an outlet connected to the outflow path; a diaphragm having the support body inserted therein; and the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet.
- the plurality of latch valves may be first and second latch valves, and an outflow path, along which water passes after having passed through the outlet of the first latch valve may be connected to an inflow path supplying water to the inlet of the second latch valve.
- a latch valve including: an inflow path and an outflow path formed in a housing; a solenoid having a coil wound thereon; a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted; a spring positioned between the permanent magnet and the plunger; a support body having an inlet connected to the inflow path and an outlet connected to the outflow path; a diaphragm having the support body inserted therein; and a plurality of latch valves each having the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet, wherein an additional outflow path constantly communicating with a space part between the support body and the plunger is provided to allow a flow to be generated in the additional outflow path even when the plunger is closed.
- the additional outflow path of the second latch valve may be formed in the housing surrounding the plunger.
- a stopper may be formed in the space part of the latch valve in order to prevent the support body from lifting by more than a certain degree.
- the stopper may be formed on an upper surface of the support body and may be formed of an elastic member.
- the latch valve capable of controlling a flow rate with a simpler structure at a low rate of power consumption, and the flow control device can be provided.
- the latch valve can be operated without causing an error and consume minimum power, and the flow control device can be provided.
- FIG. 1 is a sectional view of the related art solenoid valve
- FIG. 2 is a sectional view of the related art latch valve
- FIG. 4 is a sectional view of the latch valve according to an exemplary embodiment of the present invention.
- FIG. 5 is a sectional view of a flow control device according to an exemplary embodiment of the present invention.
- FIG. 6 is a perspective view of the latch valve according to an exemplary embodiment of the present invention.
- FIG. 7 is a partial sectional view of the latch valve taken along line A-A in FIG. 6 .
- FIG. 3 is a plan view of a latch valve according to an exemplary embodiment of the present invention.
- a latch valve 101 includes a single inflow path 110 , two outflow paths 116 and 117 , and an outlet path 115 in which the two outflow paths 116 and 117 meet.
- FIG. 4 is a sectional view of the latch valve according to an exemplary embodiment of the present invention.
- a coil is wound on a solenoid SL at an inner side of a housing 127 in the latch valve 101 .
- a plunger 122 and an iron core 129 are disposed at an inner side of the solenoid SL.
- a permanent magnet M is disposed at an upper portion of the iron core 129 .
- a spring 125 is disposed in the iron core 129 , and in this case, the spring 125 is disposed to push the plunger 122 toward an outlet 114 .
- a lower housing 128 includes an inflow path 110 and a first outflow path 116 .
- a diaphragm 120 made of a rubber material having elasticity and a support body 121 made of a plastic material, inserted into the diaphragm 120 , and having an inlet 111 and the outlet 114 are provided at end portions of the inflow path 110 and the first outflow path 116 .
- the inflow path 110 communicates with a space part 130 through the inlet 111
- the first outflow path 116 communicates with the space part 130 through the outlet 114 .
- a second outflow path 117 is formed in the space part 130 between the diaphragm 120 and the support body 121 and the upper housing 127 .
- a spring as a stopper 132 is mounted on an upper surface of the support body 121 .
- the stopper 132 may have a radius larger than that of the plunger 122 , so the stopper 132 preferentially meets the upper housing 127 to prevent the support body 121 and the diaphragm 120 from lifting.
- the plunger 122 of the latch valve 101 when a sealing part 123 of the plunger 122 blocks the outlet 114 of the support body 121 , the plunger 122 of the latch valve 101 is in a closed position, and when the sealing part 123 of the plunger 122 opens the outlet 114 of the support body 121 , the plunger 122 of the latch valve 101 is in an open position.
- the diaphragm made of a rubber material is deformed by a turbulent flow generated when the plunger is moved to the closed position.
- the central portion of the diaphragm rises in a convex shape, and the convex, the rising diaphragm and the support body arrest the descending plunger, forcing the plunger not to descend to the closed position, but to be maintained in the open position in which the plunger clings to the permanent magnet.
- the support body 121 includes the stopper 132 , before the diaphragm 120 and the support body 121 hit the plunger 122 , the stopper 132 of the support body 121 meets the upper housing 127 , so the plunger 122 can be prevented from lifting due to the deformation of the diaphragm 120 .
- the stopper 132 is formed as a spring, an elastic member, it can store force from the ascending diaphragm 120 and the support 121 and apply it downwardly to help mount the diaphragm 120 and the support 121 on the lower housing 128 .
- FIG. 5 is a sectional view of a flow control device 100 using a latch valve according to an exemplary embodiment of the present invention.
- the latch valve 101 has the same configuration as that illustrated in FIG. 4 , except that the stopper 132 is not formed therein, and a latch valve 102 has the same configuration as that of the related art latch valve, except that the stopper 132 is formed therein.
- the latch valves 101 and 102 are disposed in series, so that when the front latch valve 102 is closed, there is no flow that passes through the flow control device regardless of whether or not the latch valve 101 connected to the latch valve 102 is open or closed.
- the latch valve 101 when the latch valve 102 is open and the latch valve 101 is closed, because the latch valve 101 includes the second outflow path 117 communicating with the space part 130 , a certain flow can be obtained through the second outflow path 117 of the latch valve 101 , and when both the latch valves 101 and 102 are all open, because a flow can be obtained even by the first outflow path 116 as well as the second outflow path 117 , resulting in that a larger amount of flow can be obtained compared with the case in which the latch valve 102 is open and the latch valve 101 is closed.
- the flow control device using the two latch valves 101 and 102 requires less power than controlling a flow by using a plurality of solenoid valves or stepping motors of the related art, so it can be used for a self-generation bidet that does not have external power.
- no flow can be formed by simply moving one latch valve to the closed position. That is no flow can be formed by less power compared with the case in which the latch valves are disposed in parallel.
- the self-generation bidet without having an external power source cannot secure power on a regular basis, so when an amount of power is small, the bidet requires an additional power securing means.
- one latch valve can be operated, and then, when power is secured, another latch valve may be returned to its original state.
- the stopper 132 is mounted in the latch valve 102 , but not in the latch valve 101 .
- the front latch valve 102 serves to determine the presence or absence of a flow, so if malfunction of the latch valve 102 is prevented, a problem in which water continuously flows within the entirety of the flow control device 100 can be solved. Also, when the front latch valve 102 is in the closed state, there is no water introduced through the inflow path 110 of the rear latch valve 101 . Thus, compared with the front latch valve 102 , the problem that the diaphragm 120 hits the plunger 122 is insignificant.
- the stopper 132 is not disposed in the latch valve 101 , but the stopper 132 may be mounted in both latch valves 101 and 102 .
- the second outflow path 117 is formed on the housing 127 surrounding the plunger 122 , specifically, on the housing 127 near the plunger 122 when the plunger 122 is in the closed position.
- the second outflow path 117 is disposed on the housing 127 surrounding the plunger 122 , the second outflow path 117 can indirectly communicate with the space part 130 , and thus, it can be less affected by a turbulent current generated in the space part 130 and has a simpler structure.
- the stopper 130 is mounted as an elastic member on the support body 121 .
- the stopper 130 may be formed on the housing 127 , and although the stopper 130 is made of a material, namely, a non-elastic member, rather than an elastic member, it can prevent the diaphragm 120 and the support body 121 from lifting.
- the flow control device using the latch valve has been described to be used for a self-generation bidet, but the flow control device according to an exemplary embodiment may be also used for a general bidet, rather than the self-generation bidet, or any other flow control device.
Abstract
Provided is a simpler, more efficient, and more reliable latch valve. The latch valve includes an inflow path and an outflow path formed in a housing; a solenoid having a coil wound thereon; a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted; a spring positioned between the permanent magnet and the plunger; a support body having an inlet connected to the inflow path and an outlet connected to the outflow path; a diaphragm having the support body inserted therein; and the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet, wherein an additional outflow path constantly communicating with a space part between the support body and the plunger is provided to allow a flow to be generated in the additional outflow path even when the plunger is closed.
Description
- This application is a Divisional Application of U.S. patent application Ser. No. 13/639,748, which was filed in the U.S. Patent and Trademark Office on Oct. 5, 2012, which is a National Phase Entry of PCT International Application No. PCT/KR2010/006631, which was filed on Sep. 29, 2010, and claims priority to Korean Patent Application Serial No. 10-2010-0034927, which was filed in the Korean Intellectual Property Office on Apr. 15, 2010, the entire disclosure of each of which is incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a structure of a latch valve capable of controlling a flow rate and a flow control device using the latch valve, and more particularly, to a latch valve for minimizing power consumption and a flow control device using the same.
- 2. Description of the Related Art
- In general, a flow control device uses a stepping motor or a plurality of solenoid valves to control a flow rate. For example, power is supplied, so the solenoid valves or the stepping motor is operated by using the supplied power to control a flow rate.
- The related art bidet controls a flow rate by using a solenoid valve as shown in
FIG. 1 . In thesolenoid valve 1, aplunger 22 is usually in contact with asupport body 21 of adiaphragm 20 by virtue of an elastic force of aspring 5 to block anoutlet path 15, and when electricity is applied to a solenoid SL, theplunger 22 is lifted up by a magnetic force generated from the solenoid SL, allowing water introduced from aninflow path 10 to flow out to theoutflow path 15 through aspace part 30. - In the
solenoid valve 1, theplunger 30 blocks theoutlet path 15 when no electricity is supplied to the solenoid SL, so electrically is constantly supplied in an open state. - In general, in an area in which electricity is applied, a flow rate can be controlled by using the
solenoid valve 1. Meanwhile, in an area in which electricity is not supplied, or in order to reduce the use of electricity, power is generated by using water introduced into a self-generation bidet and the bidet is controlled by using generated power. In this case, however, the amount of electricity generated by the introduced water is too small to operate thesolenoid valve 1. - A latch valve 2 adaptive to use less power is illustrated in
FIG. 2 . In the latch valve 2, a magnetic force induced by supplying electricity to a coil of a solenoid SL lifts theplunger 22 up, against the elastic force of thespring 5, and in this case, theplunger 22 can be maintained in an open position by virtue of the magnetic force of a permanent magnet (M), although electricity is not supplied to the solenoid SL. Thus, simply supplying power to open or close the latch valve will do, compared with thesolenoid valve 1. - However, in the case of the latch valve which needs power only when it is opened or closed, when the valve is closed, the
diaphragm 20 wobbles so as to hit theplunger 22. - In the case of the
solenoid valve 1, although thediaphragm 20 wobbles to hit theplunger 22, when the solenoid valve becomes balanced, the solenoid valve is closed, owing to the elastic force of thespring 5 and the self-weight of theplunger 22, but in the case of the latch valve 2, when theplunger 22 is excessively pushed up, theplunger 22 is attached to the permanent magnet, maintaining an open state. - In particular, it may be difficult for the self-generation bidet to continuously or repeatedly use electricity, so the valve is required to be more reliably operated.
- The present invention has been made to address at least the above problems and/or disadvantages and to provide at least the advantages described below.
- An aspect of the present invention is to provide a latch valve consuming less power, having a simpler structure, and guaranteeing reliable valve operation, and a flow control device using the same.
- According to an aspect of the present invention, there is provided a flow control device comprising a plurality of latch valves connected in series, and the second to the last latch valves, among the latch valves connected in series, include an additional outflow path constantly communicating with a space part between a support body and a plunger, respectively, to allow water from an inlet to constantly flow out to the additional outflow paths.
- The latch valve may comprise an inflow path and an outflow path formed in a housing; a solenoid having a coil wound thereon; a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted; a spring positioned between the permanent magnet and the plunger; a support body having an inlet connected to the inflow path and an outlet connected to the outflow path; a diaphragm having the support body inserted therein; and the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet.
- The plurality of latch valves may be first and second latch valves, and an outflow path, along which water passes after having passed through the outlet of the first latch valve may be connected to an inflow path supplying water to the inlet of the second latch valve.
- According to another aspect of the present invention, there is provided a latch valve including: an inflow path and an outflow path formed in a housing; a solenoid having a coil wound thereon; a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted; a spring positioned between the permanent magnet and the plunger; a support body having an inlet connected to the inflow path and an outlet connected to the outflow path; a diaphragm having the support body inserted therein; and a plurality of latch valves each having the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet, wherein an additional outflow path constantly communicating with a space part between the support body and the plunger is provided to allow a flow to be generated in the additional outflow path even when the plunger is closed.
- In the latch valve or the flow control device, the additional outflow path of the second latch valve may be formed in the housing surrounding the plunger.
- A stopper may be formed in the space part of the latch valve in order to prevent the support body from lifting by more than a certain degree.
- The stopper may be formed on an upper surface of the support body and may be formed of an elastic member.
- The latch valve capable of controlling a flow rate with a simpler structure at a low rate of power consumption, and the flow control device can be provided.
- In addition, the latch valve can be operated without causing an error and consume minimum power, and the flow control device can be provided.
- The above and other aspects, features, and advantages of certain embodiments of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a sectional view of the related art solenoid valve; -
FIG. 2 is a sectional view of the related art latch valve; -
FIG. 3 is a plan view of a latch valve according to an exemplary embodiment of the present invention; -
FIG. 4 is a sectional view of the latch valve according to an exemplary embodiment of the present invention; -
FIG. 5 is a sectional view of a flow control device according to an exemplary embodiment of the present invention; -
FIG. 6 is a perspective view of the latch valve according to an exemplary embodiment of the present invention; and -
FIG. 7 is a partial sectional view of the latch valve taken along line A-A inFIG. 6 . - Various embodiments of the present invention are described in detail with reference to the accompanying drawings. The same or similar components may be designated by the same or similar reference numerals. Detailed descriptions of constructions or processes known in the art may be omitted to avoid obscuring the subject matter of the present invention.
- Specifically, a latch valve and a flow control device using the latch valve will now be described with reference to the accompanying drawings.
-
FIG. 3 is a plan view of a latch valve according to an exemplary embodiment of the present invention. Alatch valve 101 includes asingle inflow path 110, twooutflow paths outlet path 115 in which the twooutflow paths -
FIG. 4 is a sectional view of the latch valve according to an exemplary embodiment of the present invention. As shown inFIG. 4 , a coil is wound on a solenoid SL at an inner side of ahousing 127 in thelatch valve 101. Aplunger 122 and aniron core 129 are disposed at an inner side of the solenoid SL. A permanent magnet M is disposed at an upper portion of theiron core 129. Aspring 125 is disposed in theiron core 129, and in this case, thespring 125 is disposed to push theplunger 122 toward anoutlet 114. - A
lower housing 128 includes aninflow path 110 and afirst outflow path 116. Adiaphragm 120 made of a rubber material having elasticity and asupport body 121 made of a plastic material, inserted into thediaphragm 120, and having aninlet 111 and theoutlet 114 are provided at end portions of theinflow path 110 and thefirst outflow path 116. Theinflow path 110 communicates with aspace part 130 through theinlet 111, and thefirst outflow path 116 communicates with thespace part 130 through theoutlet 114. - A
second outflow path 117, an additional outflow path, is formed in thespace part 130 between thediaphragm 120 and thesupport body 121 and theupper housing 127. A spring as astopper 132 is mounted on an upper surface of thesupport body 121. Thestopper 132 may have a radius larger than that of theplunger 122, so thestopper 132 preferentially meets theupper housing 127 to prevent thesupport body 121 and thediaphragm 120 from lifting. - In the
latch valve 101, when asealing part 123 of theplunger 122 blocks theoutlet 114 of thesupport body 121, theplunger 122 of thelatch valve 101 is in a closed position, and when thesealing part 123 of theplunger 122 opens theoutlet 114 of thesupport body 121, theplunger 122 of thelatch valve 101 is in an open position. - Even when the
plunger 122 of thelatch valve 101 is in the closed position at which theoutlet 114 is blocked, theinlet 110 and thespace part 130 communicate and thespace part 130 and thesecond outflow path 117 communicate, so water introduced from theinlet 110 can flow out through thesecond outflow path 117 formed at thespace part 130. - As illustrated in
FIG. 4 , when theplunger 122 is in the open position in which theoutlet 114 is open, water introduced through theinlet 111 may be discharged to thesecond outflow path 117 communicating with thespace part 130, as well as to thefirst outflow path 116 through theoutlet 114, and water which has been discharged to thefirst outflow path 116 and water which has been discharged to thesecond outflow path 117 meet theoutlet path 115 so as to be provided to a nozzle of a bidet. - Thus, compared with the case in which the
plunger 122 is in the closed position, when theplunger 122 is in the open position, an additional amount of water, namely, as large as the amount of water which flows in thefirst outflow path 116, can flows, and the flow rate of water passing through thelatch valve 101 can be controlled by moving theplunger 122 into the open position and the closed position. - Also, as described above, in the related art latch valve, the diaphragm made of a rubber material is deformed by a turbulent flow generated when the plunger is moved to the closed position. In particular, because both ends of the diaphragm are fixed to the housing, the central portion of the diaphragm rises in a convex shape, and the convex, the rising diaphragm and the support body arrest the descending plunger, forcing the plunger not to descend to the closed position, but to be maintained in the open position in which the plunger clings to the permanent magnet.
- In comparison, however, as shown in
FIG. 4 , in an exemplary embodiment of the present invention, because thesupport body 121 includes thestopper 132, before thediaphragm 120 and thesupport body 121 hit theplunger 122, thestopper 132 of thesupport body 121 meets theupper housing 127, so theplunger 122 can be prevented from lifting due to the deformation of thediaphragm 120. Also, because thestopper 132 is formed as a spring, an elastic member, it can store force from the ascendingdiaphragm 120 and thesupport 121 and apply it downwardly to help mount thediaphragm 120 and thesupport 121 on thelower housing 128. -
FIG. 5 is a sectional view of aflow control device 100 using a latch valve according to an exemplary embodiment of the present invention. Thelatch valve 101 has the same configuration as that illustrated inFIG. 4 , except that thestopper 132 is not formed therein, and alatch valve 102 has the same configuration as that of the related art latch valve, except that thestopper 132 is formed therein. - An
outflow path 115 of thelatch valve 102 is connected to aninflow path 110 of thelatch valve 101, so that only when thelatch valve 102 is open, water is supplied to theinflow path 110 of thelatch valve 101. - In the flow control device according to an exemplary embodiment of the present invention, the
latch valves front latch valve 102 is closed, there is no flow that passes through the flow control device regardless of whether or not thelatch valve 101 connected to thelatch valve 102 is open or closed. Also, when thelatch valve 102 is open and thelatch valve 101 is closed, because thelatch valve 101 includes thesecond outflow path 117 communicating with thespace part 130, a certain flow can be obtained through thesecond outflow path 117 of thelatch valve 101, and when both thelatch valves first outflow path 116 as well as thesecond outflow path 117, resulting in that a larger amount of flow can be obtained compared with the case in which thelatch valve 102 is open and thelatch valve 101 is closed. - The flow control device using the two
latch valves - Also, no flow can be formed by simply moving one latch valve to the closed position. That is no flow can be formed by less power compared with the case in which the latch valves are disposed in parallel. The self-generation bidet without having an external power source cannot secure power on a regular basis, so when an amount of power is small, the bidet requires an additional power securing means. However, in the case in which the latch valves are connected in series, one latch valve can be operated, and then, when power is secured, another latch valve may be returned to its original state.
- In
FIG. 5 , thestopper 132 is mounted in thelatch valve 102, but not in thelatch valve 101. Thefront latch valve 102 serves to determine the presence or absence of a flow, so if malfunction of thelatch valve 102 is prevented, a problem in which water continuously flows within the entirety of theflow control device 100 can be solved. Also, when thefront latch valve 102 is in the closed state, there is no water introduced through theinflow path 110 of therear latch valve 101. Thus, compared with thefront latch valve 102, the problem that thediaphragm 120 hits theplunger 122 is insignificant. In the present exemplary embodiment, thestopper 132 is not disposed in thelatch valve 101, but thestopper 132 may be mounted in both latchvalves - The position of the
second outflow path 117 of the latch valve according to an exemplary embodiment of the present invention will now be described. - In
FIGS. 4 and 5 , thesecond outflow path 117 is formed in thehousing 127 at an outer side of thespace part 130, and inFIGS. 6 and 7 , thesecond outflow path 117 is formed at a portion surrounding theplunger 122 on thehousing 127. When viewed from an upper surface of thelatch valve 102, thesecond outflow path 117 is formed at a different position from thefirst outflow path 116. - As shown in
FIG. 7 , a sectional view taken along line A-A′ ofFIG. 6 , thesecond outflow path 117 is formed on thehousing 127 surrounding theplunger 122, specifically, on thehousing 127 near theplunger 122 when theplunger 122 is in the closed position. - Thus, because the
second outflow path 117 is disposed on thehousing 127 surrounding theplunger 122, thesecond outflow path 117 can indirectly communicate with thespace part 130, and thus, it can be less affected by a turbulent current generated in thespace part 130 and has a simpler structure. - The exemplary embodiments of the latch valve and the flow control device using the latch valve have been described, but the present invention is not limited thereto and various modifications can be obviously made.
- In the above-described exemplary embodiments, the
stopper 130 is mounted as an elastic member on thesupport body 121. However, thestopper 130 may be formed on thehousing 127, and although thestopper 130 is made of a material, namely, a non-elastic member, rather than an elastic member, it can prevent thediaphragm 120 and thesupport body 121 from lifting. - Also, the method of controlling a flow by using two latch valves have been described, but three or more latch valves may be used to control a flow so long as the latch valves include the second outflow path.
- In addition, the flow control device using the latch valve has been described to be used for a self-generation bidet, but the flow control device according to an exemplary embodiment may be also used for a general bidet, rather than the self-generation bidet, or any other flow control device.
- While the present invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A latch valve comprising:
an inflow path and an outflow path formed in a housing;
a solenoid having a coil wound thereon;
a permanent magnet positioned at an upper portion of a plunger and latching the plunger when the plunger is lifted;
a spring positioned between the permanent magnet and the plunger;
a support body having an inlet connected to the inflow path and an outlet connected to the outflow path;
a diaphragm having the support body inserted therein; and
the plunger lifted or lowered by a magnetic force induced by the coil to open and close the outlet,
wherein an additional outflow path constantly communicating with a space part between the support body and the plunger is provided to allow a flow to be generated in the additional outflow path even when the plunger is closed.
2. The latch valve of claim 1 , wherein the additional outflow path of the second latch valve is formed in the housing surrounding the plunger.
3. The latch valve of claim 2 , wherein a stopper is formed in the space part of the latch valve in order to prevent the support body from lifting by more than a certain degree.
4. The latch valve of claim 3 , wherein the stopper is formed on an upper surface of the support body.
5. The latch valve of claim 3 , wherein the stopper is formed of an elastic member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/567,596 US20150090911A1 (en) | 2010-04-15 | 2014-12-11 | Latch valve and flow control device using the same |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100034927A KR101664853B1 (en) | 2010-04-15 | 2010-04-15 | Latch valve and flow control device comprising the same |
KR10-2010-0034927 | 2010-04-15 | ||
PCT/KR2010/006631 WO2011129498A1 (en) | 2010-04-15 | 2010-09-29 | Latch valve and flow control device using the same |
US201213639748A | 2012-10-05 | 2012-10-05 | |
US14/567,596 US20150090911A1 (en) | 2010-04-15 | 2014-12-11 | Latch valve and flow control device using the same |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/006631 Division WO2011129498A1 (en) | 2010-04-15 | 2010-09-29 | Latch valve and flow control device using the same |
US13/639,748 Division US8936041B2 (en) | 2010-04-15 | 2010-09-29 | Latch valve and flow control device using the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150090911A1 true US20150090911A1 (en) | 2015-04-02 |
Family
ID=44798843
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/639,748 Active 2030-12-12 US8936041B2 (en) | 2010-04-15 | 2010-09-29 | Latch valve and flow control device using the same |
US14/567,596 Abandoned US20150090911A1 (en) | 2010-04-15 | 2014-12-11 | Latch valve and flow control device using the same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/639,748 Active 2030-12-12 US8936041B2 (en) | 2010-04-15 | 2010-09-29 | Latch valve and flow control device using the same |
Country Status (6)
Country | Link |
---|---|
US (2) | US8936041B2 (en) |
EP (2) | EP2558756B1 (en) |
KR (1) | KR101664853B1 (en) |
CN (1) | CN102844600B (en) |
MY (1) | MY159129A (en) |
WO (1) | WO2011129498A1 (en) |
Cited By (1)
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WO2017184557A1 (en) * | 2016-04-21 | 2017-10-26 | Technologies Holdings Corp. | Solenoid actuated shutoff valve |
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EP3181968A1 (en) * | 2015-12-15 | 2017-06-21 | UNIVER S.p.A. | Electrically switchable valve for fluid media |
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JP2017201198A (en) * | 2016-05-06 | 2017-11-09 | Toto株式会社 | Flow regulating valve |
US10724768B2 (en) * | 2016-05-25 | 2020-07-28 | The University Of Chicago | Systems and methods for providing continuous cooling at cryogenic temperatures |
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TWI756655B (en) * | 2020-03-30 | 2022-03-01 | 比理恩設計有限公司 | Valve body, electromagnet switch valve and bed structure |
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- 2010-09-29 MY MYPI2011005213A patent/MY159129A/en unknown
- 2010-09-29 EP EP10849902.1A patent/EP2558756B1/en active Active
- 2010-09-29 US US13/639,748 patent/US8936041B2/en active Active
- 2010-09-29 WO PCT/KR2010/006631 patent/WO2011129498A1/en active Application Filing
- 2010-09-29 EP EP17190646.4A patent/EP3282159B1/en active Active
- 2010-09-29 CN CN201080066151.7A patent/CN102844600B/en active Active
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2014
- 2014-12-11 US US14/567,596 patent/US20150090911A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017184557A1 (en) * | 2016-04-21 | 2017-10-26 | Technologies Holdings Corp. | Solenoid actuated shutoff valve |
US9901068B2 (en) | 2016-04-21 | 2018-02-27 | Technologies Holdings Corp. | Solenoid actuated shutoff valve |
US10306865B2 (en) | 2016-04-21 | 2019-06-04 | Technologies Holdings Corp. | Solenoid actuated shutoff valve |
Also Published As
Publication number | Publication date |
---|---|
EP2558756A4 (en) | 2017-02-22 |
KR101664853B1 (en) | 2016-10-12 |
KR20110115431A (en) | 2011-10-21 |
EP3282159B1 (en) | 2018-12-19 |
EP2558756A1 (en) | 2013-02-20 |
EP2558756B1 (en) | 2018-05-09 |
US8936041B2 (en) | 2015-01-20 |
CN102844600A (en) | 2012-12-26 |
MY159129A (en) | 2016-12-15 |
EP3282159A1 (en) | 2018-02-14 |
CN102844600B (en) | 2015-05-06 |
US20130025721A1 (en) | 2013-01-31 |
WO2011129498A1 (en) | 2011-10-20 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |