CA2029511A1 - Electrovalve - Google Patents
ElectrovalveInfo
- Publication number
- CA2029511A1 CA2029511A1 CA 2029511 CA2029511A CA2029511A1 CA 2029511 A1 CA2029511 A1 CA 2029511A1 CA 2029511 CA2029511 CA 2029511 CA 2029511 A CA2029511 A CA 2029511A CA 2029511 A1 CA2029511 A1 CA 2029511A1
- Authority
- CA
- Canada
- Prior art keywords
- electrovalve
- core
- normally opened
- membrane
- fact
- 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
Links
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Electrovalve Normally opened electrovalve comprising a body, a sup-ple and deformable membrane perforated at its periphery and reinforced at its center by means of a rest member both provided with a central aperture, the membrane and the member being intended to obturated the water passage in resting onto the seat of the body, an electro-magnet and a spring acting on a core to ensure the closure and the opening of the passage, characterized by the fact that the electro-magnet 14 is mounted in a housing 15 which comprises a backspace 21 for the core 22, the said core comprising a rod 17 which extends it towards the resting member 4 provided at its end with a tightening joint 18 so that when the valve is out of tension the spring 20 pushes the core 22 into the backspace 21 and liberates the mem-brane 2 and the resting member 4 from the seat 13.
(figure 1).
Electrovalve Normally opened electrovalve comprising a body, a sup-ple and deformable membrane perforated at its periphery and reinforced at its center by means of a rest member both provided with a central aperture, the membrane and the member being intended to obturated the water passage in resting onto the seat of the body, an electro-magnet and a spring acting on a core to ensure the closure and the opening of the passage, characterized by the fact that the electro-magnet 14 is mounted in a housing 15 which comprises a backspace 21 for the core 22, the said core comprising a rod 17 which extends it towards the resting member 4 provided at its end with a tightening joint 18 so that when the valve is out of tension the spring 20 pushes the core 22 into the backspace 21 and liberates the mem-brane 2 and the resting member 4 from the seat 13.
(figure 1).
Description
2 ~
- 1 - .. :
ELECTROVALVE
The present invention relates to an ~lectrovalve, "normally opened", and to its us~ in hot water p~oduction devices.
In the industry of the electrical household appliances using water it is necessary to provide electrovalves to ;
control the feeding ducts.
These electrovalves are always of the normally closed type, that is to say closed in rest position, when the -;
feeding in water has to be interrupted particularly when the apparatus is not under tension. They have as their function to close the duct in order to avoid any outflow.
There do not exist electrovalves for household appliances which on the contrary are always opened in rest position, that is to say when they are not under tension.
The invention has for aim to realize a normally opened electrovalve intended to close a duct when it is under tension.
The invention has for its object a normally opened electrovalve comprising a body, a supple deformable mem-brane which is perforated at its periphery, reinforced in its center by means oE a resting member, both provided with a central opening, the membrane and the member being intended to close the water passage when resting on the seat o~ the body, an electro-magnet as well as a spring acting on a core to ensure the closing and the opening of the passage, characterized in that the electro-magnet is mounted in an output which comprises a backspace for the :
. . ... . . . .
core, the core comprises a rod which extends it towards the resting member, provided at its end with a tightening member, so that when the valve is out of tension the spring pushes the core into the backspace and liberates the membrane and the resting member.
The valve is further characterized in that it com-prises a guiding ring of the rod on which rests the return spring.
The invention has further for its object the use of the hereabove defined electrovalve in household electri-cals in order to obturate the hydraulic duct of the ap-paratus when one simultaneously opens another duct.
More precisely, the invention has for its object the use of the electrovalve in an apparatus for producing hot water in order to set the said tank at the atmospheric pressure in the absence of water outflow and to reset said tank at the feeding pressure during the outflow water.
In order to better understand the invention the at-tached drawing shows ~
Figure 1 : a normally opened electrovalve according to the invention in closed position.
Figure 2 : an example of use of the electrovalve ac-cording to the invention in a hot water production device.
As illustrated in igure 1, the electrovalve comprises a body 1 to which are connected the input 11 and output 12 ducts. The body comprises in its lower central portion a seat 13 intended for the passage of water and to be ob-turated by a membrane 2.
The electrovalve comprises an electro-magnet 14 in a housing 15 the lower part of which which rests on the body , . . .
':
2 ~ 2 ~
~ ~ 3 ~
.
1 has a void 16 having the general hemispherical shape.
The membrane is maintained clamped between the housing 15 and the body 1 and it is reinforced in :its central portion by means of a resting member or insert 4. The membrane is perforated at its periphery 3 so as to leave water circu-late into the void 16 in order that water pressure will be the same on both sides of the membrane. The membrane 2 and ~he member 4 are further crossed by an aperture intended at the opening of the valve to start the flow between the void 16 under pressure and the outlet duct 11.
The electro-ma~net comprises a magnetic circuit at the center of which is located an envelop in which a core 22 is displaceable. When the magnetic circuit is under ten-sion, the core is placed to be at the maximum o~ the mag-netical field. A spring 20 is mounted on the core so that when the magnetic circuit is out of tension, the core dis-places and moves away from said circuit.
According to the invention, the spring 20 moves the core 22 away from the membrane. The envelop co~prises to this effect a backspace 21. Further, according to the in-vention, the core is extended towards the member 4 by means of a rod 17 the end of which carries a tigheting member 18 which is supple and intended to close the member 4.
In the example shown, this spring 20 pushes away the core; to this effect it comes to rest on a ring 19 which is also a guiding ring.
This example is not limitative and one can provide any equiva1ent means particularly a return spring in the back-' ''''''',.
' ' space 21, etc.
The working of the electrovalve is the following :
1. in the absence of current, under the effect of the spring 20 the core 22 is displaced back in the space 21. Due to the presence of the peripherical perforations 3 the pressure is equilibrated on both sidles of the membrane on an identical surface. The pressure of the water do not exerce any effort on the membrane which is in a so-called normally spread out position from the seat, leaving there-fore a free passage for the water.
2. in presence of current, under the action of the magnetical field created by the magnetic circuit 14, the core 22 displaces itself, compressing the spring 20 and pushing the membrane 2 provided with its member 4 onto the seat of the body 1. `
Then, the pressure which is exercated on the side of the core on the whole surface of the membrane and on the other side on the annular surface which is less, applies strongly, due to the fact of this difference of surfaces, the membrane 2 onto the seat of the body 1, ensuring the tighteness between the entry 10 and the outlet 11.
- 1 - .. :
ELECTROVALVE
The present invention relates to an ~lectrovalve, "normally opened", and to its us~ in hot water p~oduction devices.
In the industry of the electrical household appliances using water it is necessary to provide electrovalves to ;
control the feeding ducts.
These electrovalves are always of the normally closed type, that is to say closed in rest position, when the -;
feeding in water has to be interrupted particularly when the apparatus is not under tension. They have as their function to close the duct in order to avoid any outflow.
There do not exist electrovalves for household appliances which on the contrary are always opened in rest position, that is to say when they are not under tension.
The invention has for aim to realize a normally opened electrovalve intended to close a duct when it is under tension.
The invention has for its object a normally opened electrovalve comprising a body, a supple deformable mem-brane which is perforated at its periphery, reinforced in its center by means oE a resting member, both provided with a central opening, the membrane and the member being intended to close the water passage when resting on the seat o~ the body, an electro-magnet as well as a spring acting on a core to ensure the closing and the opening of the passage, characterized in that the electro-magnet is mounted in an output which comprises a backspace for the :
. . ... . . . .
core, the core comprises a rod which extends it towards the resting member, provided at its end with a tightening member, so that when the valve is out of tension the spring pushes the core into the backspace and liberates the membrane and the resting member.
The valve is further characterized in that it com-prises a guiding ring of the rod on which rests the return spring.
The invention has further for its object the use of the hereabove defined electrovalve in household electri-cals in order to obturate the hydraulic duct of the ap-paratus when one simultaneously opens another duct.
More precisely, the invention has for its object the use of the electrovalve in an apparatus for producing hot water in order to set the said tank at the atmospheric pressure in the absence of water outflow and to reset said tank at the feeding pressure during the outflow water.
In order to better understand the invention the at-tached drawing shows ~
Figure 1 : a normally opened electrovalve according to the invention in closed position.
Figure 2 : an example of use of the electrovalve ac-cording to the invention in a hot water production device.
As illustrated in igure 1, the electrovalve comprises a body 1 to which are connected the input 11 and output 12 ducts. The body comprises in its lower central portion a seat 13 intended for the passage of water and to be ob-turated by a membrane 2.
The electrovalve comprises an electro-magnet 14 in a housing 15 the lower part of which which rests on the body , . . .
':
2 ~ 2 ~
~ ~ 3 ~
.
1 has a void 16 having the general hemispherical shape.
The membrane is maintained clamped between the housing 15 and the body 1 and it is reinforced in :its central portion by means of a resting member or insert 4. The membrane is perforated at its periphery 3 so as to leave water circu-late into the void 16 in order that water pressure will be the same on both sides of the membrane. The membrane 2 and ~he member 4 are further crossed by an aperture intended at the opening of the valve to start the flow between the void 16 under pressure and the outlet duct 11.
The electro-ma~net comprises a magnetic circuit at the center of which is located an envelop in which a core 22 is displaceable. When the magnetic circuit is under ten-sion, the core is placed to be at the maximum o~ the mag-netical field. A spring 20 is mounted on the core so that when the magnetic circuit is out of tension, the core dis-places and moves away from said circuit.
According to the invention, the spring 20 moves the core 22 away from the membrane. The envelop co~prises to this effect a backspace 21. Further, according to the in-vention, the core is extended towards the member 4 by means of a rod 17 the end of which carries a tigheting member 18 which is supple and intended to close the member 4.
In the example shown, this spring 20 pushes away the core; to this effect it comes to rest on a ring 19 which is also a guiding ring.
This example is not limitative and one can provide any equiva1ent means particularly a return spring in the back-' ''''''',.
' ' space 21, etc.
The working of the electrovalve is the following :
1. in the absence of current, under the effect of the spring 20 the core 22 is displaced back in the space 21. Due to the presence of the peripherical perforations 3 the pressure is equilibrated on both sidles of the membrane on an identical surface. The pressure of the water do not exerce any effort on the membrane which is in a so-called normally spread out position from the seat, leaving there-fore a free passage for the water.
2. in presence of current, under the action of the magnetical field created by the magnetic circuit 14, the core 22 displaces itself, compressing the spring 20 and pushing the membrane 2 provided with its member 4 onto the seat of the body 1. `
Then, the pressure which is exercated on the side of the core on the whole surface of the membrane and on the other side on the annular surface which is less, applies strongly, due to the fact of this difference of surfaces, the membrane 2 onto the seat of the body 1, ensuring the tighteness between the entry 10 and the outlet 11.
3. When again the magnetic circuit is set out of ;!
tenslon, the core is driven by the spring 20 and pushed into the backspace 21. The joint 18 displaces away of the member 4, liberates its central aperture and water flows, the pressure decreasing on the side of the core, the mem-brane is only submitted to its own elasticity and it comes ~
back to its normal posiiton, liberating the seat 13 of the ~-body.
.'':' '.""', .
.
. :"
.: "
. '. , . : ' . ' . ~. , , . ' . .. .
% ~ ~ ~ q,.? .~_ ~
Furthermore according to the invent:ion, one intends to feed the magnetic circuit with rectified current by means of the adjonction of the diode bridge or the equivalent (not shown~ at the ends of the circuit in order to reduce at least considerably the vibrations due to the alterna-tive current.
In fact according to the invention the valve is closed in working state; the obturation of the central aperture of the membrane and of its insert is made under the action of the magnetic circuit when excited through an alterna-tive current; the alternances of this current causing necessarily vibrations of the core which may affect the good tighteness of the joint 18 onto the insert 4.
The electrovalve according to the invention is used in household electrical equipments which necessitate the closure of a duct simultaneously to the opening of another duct.
By way of example of utilisation one has realized the device for the production of hot water shown at figure 2.
A tank 30 which is closed is fed with cold water 31, and heated by a resistor 32. The tank comprises a duct 33 which is provided with the electrovalve 34 according to the invention. The duct is opened to the free air. When the tap 35 is closed, the installation is at rest, the electrovalve is not under function; it is opened, the tank being at the atmospheric pressure.
The function of the electrovalve is not to enable less liquid to flow but to set this liquid at the atmospheric pressure and to leave this liquid change its volume under ' ~ ~
.~ .
. ~
- 6 ~
the variations of temperature. .
When hot water is taken out from the installation it is at a working state, the electrovalve is under tension and is immediately closed; the tank is set at the feeding pressure and the water can normally flow out in the du~t.
So the electrovalve according to the invention enables to realize hot water production devices which can contain hot water at the atmospheric pressure, and deliver it under a normal feeding pressure similar to the production ;.
devices under pressure and this at reduced costs due to the absence of the high pressures. ~. .
,, ~ , `. .' ' `:` ':
'' ":
: .......
,".,.
' ~
tenslon, the core is driven by the spring 20 and pushed into the backspace 21. The joint 18 displaces away of the member 4, liberates its central aperture and water flows, the pressure decreasing on the side of the core, the mem-brane is only submitted to its own elasticity and it comes ~
back to its normal posiiton, liberating the seat 13 of the ~-body.
.'':' '.""', .
.
. :"
.: "
. '. , . : ' . ' . ~. , , . ' . .. .
% ~ ~ ~ q,.? .~_ ~
Furthermore according to the invent:ion, one intends to feed the magnetic circuit with rectified current by means of the adjonction of the diode bridge or the equivalent (not shown~ at the ends of the circuit in order to reduce at least considerably the vibrations due to the alterna-tive current.
In fact according to the invention the valve is closed in working state; the obturation of the central aperture of the membrane and of its insert is made under the action of the magnetic circuit when excited through an alterna-tive current; the alternances of this current causing necessarily vibrations of the core which may affect the good tighteness of the joint 18 onto the insert 4.
The electrovalve according to the invention is used in household electrical equipments which necessitate the closure of a duct simultaneously to the opening of another duct.
By way of example of utilisation one has realized the device for the production of hot water shown at figure 2.
A tank 30 which is closed is fed with cold water 31, and heated by a resistor 32. The tank comprises a duct 33 which is provided with the electrovalve 34 according to the invention. The duct is opened to the free air. When the tap 35 is closed, the installation is at rest, the electrovalve is not under function; it is opened, the tank being at the atmospheric pressure.
The function of the electrovalve is not to enable less liquid to flow but to set this liquid at the atmospheric pressure and to leave this liquid change its volume under ' ~ ~
.~ .
. ~
- 6 ~
the variations of temperature. .
When hot water is taken out from the installation it is at a working state, the electrovalve is under tension and is immediately closed; the tank is set at the feeding pressure and the water can normally flow out in the du~t.
So the electrovalve according to the invention enables to realize hot water production devices which can contain hot water at the atmospheric pressure, and deliver it under a normal feeding pressure similar to the production ;.
devices under pressure and this at reduced costs due to the absence of the high pressures. ~. .
,, ~ , `. .' ' `:` ':
'' ":
: .......
,".,.
' ~
Claims (7)
1. Normally opened electrovalve comprising a body, a sup-ple and deformable membrane perforated at its periphery reinforced at its center with a resting member both provided with a central aperture, the membrane and the member being intended to obturate the water passage in resting onto a seat of the body, an electro-magnet and a spring acting on a core to ensure the closure and the opening of the passage, characterized by the fact that the electro-magnet (14) is mounted in a housing (15) which comprises a backspace (21) for the core (22), the said core comprising a rod (17) which extends it towards the resting member (4), provided at its end with a tighteness joint (18) so that the valve is out of tension the spring (20) pushes back the core (22) in the backspace (21) and liberates the membrane (2) and the resting member (4) from the seat (13).
2. Normally opened electrovalve according to claim 1, characterized by the fact that it comprises a tighetening and guiding ring (19) of the rod (17).
3. Normally opened electrovalve according to claim 2, characterized by the fact that the spring rests on the ring (19).
4. Normally opened electrovalve according to claim 1, characterized by the fact that it is fed with rectified current through the adjonction of a diode bridge to the ends of the magnetic circuit 14.
5. Use of a normally opened electrovalve in a household electrical appliance.
6. Use of a normally opened electrovalve according to claim 5 in an apparatus for the production of hot water in order to obturate a hydraulic duct of the apparatus when simultaneously one opens another duct.
7. Use of a normally opened electrovalve according to claim 5, in an apparatus for the production of hot water of average of great capacity in order to set the tank at the atmospheric pressure in the absence of water outflow and to set the tank at the feeding pressure during the water outflow.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH4379/89 | 1989-12-06 | ||
| CH437989 | 1989-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2029511A1 true CA2029511A1 (en) | 1991-06-07 |
Family
ID=4275018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2029511 Abandoned CA2029511A1 (en) | 1989-12-06 | 1990-11-07 | Electrovalve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2029511A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133707A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
| CN103133701A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve |
-
1990
- 1990-11-07 CA CA 2029511 patent/CA2029511A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133707A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
| CN103133701A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve |
| CN103133707B (en) * | 2011-11-22 | 2015-03-25 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
| CN103133701B (en) * | 2011-11-22 | 2016-08-03 | 浙江三花股份有限公司 | A kind of electrodynamic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |