CA1288746C - Electronically temperature-controlled mixer fitting - Google Patents
Electronically temperature-controlled mixer fittingInfo
- Publication number
- CA1288746C CA1288746C CA 567690 CA567690A CA1288746C CA 1288746 C CA1288746 C CA 1288746C CA 567690 CA567690 CA 567690 CA 567690 A CA567690 A CA 567690A CA 1288746 C CA1288746 C CA 1288746C
- Authority
- CA
- Canada
- Prior art keywords
- motor
- fitting
- valve
- mixing
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
ABSTRACT
An electronically operated mixing valve is disclosed wherein a combination of a control module which houses the electronics for electrically operating a valve module having one or more valves for mixing, shut-off and distribution of mixed water which is in contact with at least one temperature sensor, and an electromechanical motor module which is electrically connected to the valve module for automatically operating the one or more valves.
An electronically operated mixing valve is disclosed wherein a combination of a control module which houses the electronics for electrically operating a valve module having one or more valves for mixing, shut-off and distribution of mixed water which is in contact with at least one temperature sensor, and an electromechanical motor module which is electrically connected to the valve module for automatically operating the one or more valves.
Description
37~L6 Tl~MPERATUR~-CONTROLLl~D MIXING FITTINt:
BACRGROllND OF T~IE Dl SCLOSIJRE
FIE:LD OF T~ INV~NTION
Mixing fittings of this kind have not come into very widespread use to date. The reasons for thîs lie not only in the comparatively high cost of such fittings, but also and especially in a complicated manufacturing technology in combination with a design not very amenable to installation and repair.
SUMMARY OF THE INV~NTION
The object of the invention is to eliminate these disadvantages and so provide a mixing fitting whereof the complex ~etails present no manufacturing problem and whose components are structural and functional units, dependable in operation, easy to install, interconnectable and readily replaceable. Also, the fitting is easily actuated manually in the event of power failure.
This object is accomplished essentially by the structural combination of several modules, namely:
1. a valve module having one or more valves for mixing, shu~off and/or distribution, with one or more temperature sensors but at least one temperatùre - - sensor-for the mixed-water, 2. an electromechanical motor module having electrical contacts for automatic contacting witll the temperature sensor or sensors and means for automatic coupling of the electric drives to the valve or valves, and 3. a control module which houses the electron~cs.
. ~
- . . - -- . .
. . .
, . , ~2~ L6 BRl~P DESCRIPTION OP T~ D~A~INGS
In the drawings, the inven~ion is represe~ted by two embodiments by way of example, to wit:
~ IG. l is a front eleva~ional view of a mixing fitting, according to the i~venti~n;
FIG. 2 is an exploded view in side elevation;
FIG. 3 is a front elevational view of the valve module FIG. 4 is a front elevational view of a motor-reducer module;
FIG. 5 is an enlarged fragmentary elevational view, partly in section, of the coupling means of a cold and hot wa~er valve and the associated motor; a~d FIG. 6 is a sectional view similar to FIG. 5, illustrating another embodiment of the invention.
DBTAILED DESCRIPTION OF T~ PREFE~RXD ~M~ODIMENT
In the figures, 7 designates a valve module having 2 cold water inlet 9, a hot water inl~ 8 a~d mixed water outlets 10, e.g. for tub or shower use. In valve module 7, there are openings 11 to accommodate a hot water, a c~ld water and a three-way valve 12,i3,14, FIG. 3. The valves have coupling means in the form of flanges 15 and are threaded on the valve spindles 16. The valves include tooth profiles 17 which are engaged by coupling means of a motor reducer module l~. Valve mod~e 7 further Xas temperature sensors 19 for cold9 hot and mixed water reducers 20 on the cold and hot water side sound absorbers.
Motor reducer module 18 has a mo~or 21 ~or cold water, a motor 22 for hot water~ and a motor 23 for mixed w~ter. The motors are each associated-with reducin~ g~ars, not shown, . .
~38~
cooperating with the coupling ~eans of motor reducer module 18 These coupling means comprise spring cross-couplings 24, shown in FIG. 5, its longer fingers 25 engaging frontal rece5ses 26 of coupling gears 27, whi~e the shorter, projecting spring fingers 28 engage teeth 17 of coupling flanges lS of valves 12,13,14. The coupling means of motor reducer module 18 further comprises gears 29 fixedly connected to coupling gears 27 and rotatable together with them, are stationary bearings 30, while on the other hand, coupling gears 27 with the motor transmissions, not shown. In the event o~ a power failure, however, the transmissions of cold and hot water motors 21,22 can be uncoupled. A decoupling of the transmission of smaller motor 23 to control the mixed water and, hence, three-way valve 14 may be provided in the embodiments shown~
Motor reducer module 18, at the end facing valve module 7, is provided with a wall serving as conductor plate 31, which, in addition to electric spring contacts 32 for temperature sensors 19 and motors 21,22,23, is provided with plug contacts 33 for connection to the supply voltage of a transformer, not shown, and a bar 34 to deliver the supply voltage to the electronics of control 35, having a multi-pole flat cable plug 36 for connection to bar 34.
Motor reducer module 18 is equipped with manually actuable shafts 37, of which two shafts are directly connectable to gears 29 of coùpiing 27 for cold and hot water valves 12,13, while being decoupled from transmissions of motors 21,22. The third shaft 37 is continuously in communication by way of a belt drive, not shown, with ex~ernal teeth 38 of coupling gear 27 associated with motor 23 for .
~1 .
.
' ' ', ' ~ . ~
.
~L2~
three-way valve 14.
As shown, control module 35 provides LED displays 39 and a film keyboard 40 for the various functions, such as on and off, shower or tub flow and temperature setting, cold or hot water operation, time recall, and possible other functions.
Control module 35 is provided with handwheels 41, the outer two of which may be brought into engagement with gears 29 by way of two of the shafts 37 in the event of power failure assoicated with motors 21,22 for hot and cold water valves 12,13. Two outer handwheels 41 are pushed in somewhat in the event of power failure, thereby disengaging the associated motor reducers. In this way, the mixing fitting remains operational by manual actuation without much exertion. As to the three-way valve, decoupling from the smaller motor is not required. Manual actuation is readily achieved when needed by way of intermediate handwheel 41 and the belt drive.
Modules 7,18,35 are arranged in the opening of a wall, not shown. Valve module 7 is contained in a recessed box 42 and covered with a housing 43 before final installation, to be afterwards replaced by motor reducer module 18. The wall opening is closed watertight to the outside by control module 35. For this--purpose, control module 35-is provided with a rim 44 to rest in contact with the wall, with interposition of a seal disposed in a peripheral groo~e 45. Rim 44 is also connected watertight, welded to film keyboard 40, and is an integral part of housing 46 sealing the electronics of control module 35, of which housing, the wall forming keyboard 40 passes through opening 47 of a surround 48, by which it is ~387~
encircled like a rosette. Surround 48 has a bottom flap 4 for access to handwheels 41, When flap 49 is open, the time may also be set after first pressing clock symbol key 50.
Valve module 7 and motor reducer module 18 are provided with openings 51 to accommodate centering pins 52 for positive centering between valve module 7 and motor reducer module 18.
Valve module 7 has a threaded opening 53 for ~crew connection to motor reducer module 18, by screw 54 through hole 55 in motor reducer module 18. Valve module 7 is further provided with openings 56 for screw connection 57 to recessed box 42 and housing 43.
Control module 35 is connected by two screws 58 to motor reducer module 18. Screws 58 are splashproofed from the outside by caps 59.
Valves 12,13,14 are held in a T-shaped body 60, and motors 21,22,23 are laterally offset from valves 12,13,14 so that after structural assembly of modules 7,18,35, they are positioned about in the plane of valves 12,13,14.
According to a further embodiment, shown in FIG. 6, cross-couplings 24' may be alternatively rigid with longer and shorter fingers 25' and 28'. The engagement of cross-coupling 24' is assisted by corrugated springs 61 provided between coupling gears 27 and the one wall 62 of motor reducer module 18. Cross-couplings 24,24' are imprisoned behind lugs 63 of bearings 30.
Independently of the position of valves 12,13,14 and hence of teeth 17 of coupling flange 15, the shorter fingers 28,28' of cross-couplings 24,24' will automatically mesh with flange ~eeth 15 after assembly of modules 7,35. Stripping or , ',,,' .
' ~ ' l387~6 jamming by the screw connection of modules 7/1~ owing to placement of cross-couplings 24,24' being in misengagement, is ruled out.
As previously mentioned, the embodiments represented and described are only examples of the invention, and the latter is not limlted thereto, rather there are still other possibilities and variations within the scope of the invention. Thus, besides rotary drives such a~ for example, direct-current motors, linear motors may be employed instead, their physical principles beinq electromagnetic, piezoelectric or thermal. Also, still other functions are conceivable, for example, automatic actuation of a drain valve. As to the keys 64, for cold water only or hot water only, right or left respectively, to avoid accidental scalding the "START-STOP"
key must be pressed after pressing the lefthand key 64 if hot water operation is intended. As to the "VOL. IN ~", provision is made 50 that a setting from 20% is available for shower operation and any volume set~ing for tub operation. The valves 12,13,14 are of conventional type, with cartridge-shaped housing 63 and stops 66. Lastly, of course, surface-mounted designs may be preferred, as well as variants serving purposes other than tub and shower operation.
BACRGROllND OF T~IE Dl SCLOSIJRE
FIE:LD OF T~ INV~NTION
Mixing fittings of this kind have not come into very widespread use to date. The reasons for thîs lie not only in the comparatively high cost of such fittings, but also and especially in a complicated manufacturing technology in combination with a design not very amenable to installation and repair.
SUMMARY OF THE INV~NTION
The object of the invention is to eliminate these disadvantages and so provide a mixing fitting whereof the complex ~etails present no manufacturing problem and whose components are structural and functional units, dependable in operation, easy to install, interconnectable and readily replaceable. Also, the fitting is easily actuated manually in the event of power failure.
This object is accomplished essentially by the structural combination of several modules, namely:
1. a valve module having one or more valves for mixing, shu~off and/or distribution, with one or more temperature sensors but at least one temperatùre - - sensor-for the mixed-water, 2. an electromechanical motor module having electrical contacts for automatic contacting witll the temperature sensor or sensors and means for automatic coupling of the electric drives to the valve or valves, and 3. a control module which houses the electron~cs.
. ~
- . . - -- . .
. . .
, . , ~2~ L6 BRl~P DESCRIPTION OP T~ D~A~INGS
In the drawings, the inven~ion is represe~ted by two embodiments by way of example, to wit:
~ IG. l is a front eleva~ional view of a mixing fitting, according to the i~venti~n;
FIG. 2 is an exploded view in side elevation;
FIG. 3 is a front elevational view of the valve module FIG. 4 is a front elevational view of a motor-reducer module;
FIG. 5 is an enlarged fragmentary elevational view, partly in section, of the coupling means of a cold and hot wa~er valve and the associated motor; a~d FIG. 6 is a sectional view similar to FIG. 5, illustrating another embodiment of the invention.
DBTAILED DESCRIPTION OF T~ PREFE~RXD ~M~ODIMENT
In the figures, 7 designates a valve module having 2 cold water inlet 9, a hot water inl~ 8 a~d mixed water outlets 10, e.g. for tub or shower use. In valve module 7, there are openings 11 to accommodate a hot water, a c~ld water and a three-way valve 12,i3,14, FIG. 3. The valves have coupling means in the form of flanges 15 and are threaded on the valve spindles 16. The valves include tooth profiles 17 which are engaged by coupling means of a motor reducer module l~. Valve mod~e 7 further Xas temperature sensors 19 for cold9 hot and mixed water reducers 20 on the cold and hot water side sound absorbers.
Motor reducer module 18 has a mo~or 21 ~or cold water, a motor 22 for hot water~ and a motor 23 for mixed w~ter. The motors are each associated-with reducin~ g~ars, not shown, . .
~38~
cooperating with the coupling ~eans of motor reducer module 18 These coupling means comprise spring cross-couplings 24, shown in FIG. 5, its longer fingers 25 engaging frontal rece5ses 26 of coupling gears 27, whi~e the shorter, projecting spring fingers 28 engage teeth 17 of coupling flanges lS of valves 12,13,14. The coupling means of motor reducer module 18 further comprises gears 29 fixedly connected to coupling gears 27 and rotatable together with them, are stationary bearings 30, while on the other hand, coupling gears 27 with the motor transmissions, not shown. In the event o~ a power failure, however, the transmissions of cold and hot water motors 21,22 can be uncoupled. A decoupling of the transmission of smaller motor 23 to control the mixed water and, hence, three-way valve 14 may be provided in the embodiments shown~
Motor reducer module 18, at the end facing valve module 7, is provided with a wall serving as conductor plate 31, which, in addition to electric spring contacts 32 for temperature sensors 19 and motors 21,22,23, is provided with plug contacts 33 for connection to the supply voltage of a transformer, not shown, and a bar 34 to deliver the supply voltage to the electronics of control 35, having a multi-pole flat cable plug 36 for connection to bar 34.
Motor reducer module 18 is equipped with manually actuable shafts 37, of which two shafts are directly connectable to gears 29 of coùpiing 27 for cold and hot water valves 12,13, while being decoupled from transmissions of motors 21,22. The third shaft 37 is continuously in communication by way of a belt drive, not shown, with ex~ernal teeth 38 of coupling gear 27 associated with motor 23 for .
~1 .
.
' ' ', ' ~ . ~
.
~L2~
three-way valve 14.
As shown, control module 35 provides LED displays 39 and a film keyboard 40 for the various functions, such as on and off, shower or tub flow and temperature setting, cold or hot water operation, time recall, and possible other functions.
Control module 35 is provided with handwheels 41, the outer two of which may be brought into engagement with gears 29 by way of two of the shafts 37 in the event of power failure assoicated with motors 21,22 for hot and cold water valves 12,13. Two outer handwheels 41 are pushed in somewhat in the event of power failure, thereby disengaging the associated motor reducers. In this way, the mixing fitting remains operational by manual actuation without much exertion. As to the three-way valve, decoupling from the smaller motor is not required. Manual actuation is readily achieved when needed by way of intermediate handwheel 41 and the belt drive.
Modules 7,18,35 are arranged in the opening of a wall, not shown. Valve module 7 is contained in a recessed box 42 and covered with a housing 43 before final installation, to be afterwards replaced by motor reducer module 18. The wall opening is closed watertight to the outside by control module 35. For this--purpose, control module 35-is provided with a rim 44 to rest in contact with the wall, with interposition of a seal disposed in a peripheral groo~e 45. Rim 44 is also connected watertight, welded to film keyboard 40, and is an integral part of housing 46 sealing the electronics of control module 35, of which housing, the wall forming keyboard 40 passes through opening 47 of a surround 48, by which it is ~387~
encircled like a rosette. Surround 48 has a bottom flap 4 for access to handwheels 41, When flap 49 is open, the time may also be set after first pressing clock symbol key 50.
Valve module 7 and motor reducer module 18 are provided with openings 51 to accommodate centering pins 52 for positive centering between valve module 7 and motor reducer module 18.
Valve module 7 has a threaded opening 53 for ~crew connection to motor reducer module 18, by screw 54 through hole 55 in motor reducer module 18. Valve module 7 is further provided with openings 56 for screw connection 57 to recessed box 42 and housing 43.
Control module 35 is connected by two screws 58 to motor reducer module 18. Screws 58 are splashproofed from the outside by caps 59.
Valves 12,13,14 are held in a T-shaped body 60, and motors 21,22,23 are laterally offset from valves 12,13,14 so that after structural assembly of modules 7,18,35, they are positioned about in the plane of valves 12,13,14.
According to a further embodiment, shown in FIG. 6, cross-couplings 24' may be alternatively rigid with longer and shorter fingers 25' and 28'. The engagement of cross-coupling 24' is assisted by corrugated springs 61 provided between coupling gears 27 and the one wall 62 of motor reducer module 18. Cross-couplings 24,24' are imprisoned behind lugs 63 of bearings 30.
Independently of the position of valves 12,13,14 and hence of teeth 17 of coupling flange 15, the shorter fingers 28,28' of cross-couplings 24,24' will automatically mesh with flange ~eeth 15 after assembly of modules 7,35. Stripping or , ',,,' .
' ~ ' l387~6 jamming by the screw connection of modules 7/1~ owing to placement of cross-couplings 24,24' being in misengagement, is ruled out.
As previously mentioned, the embodiments represented and described are only examples of the invention, and the latter is not limlted thereto, rather there are still other possibilities and variations within the scope of the invention. Thus, besides rotary drives such a~ for example, direct-current motors, linear motors may be employed instead, their physical principles beinq electromagnetic, piezoelectric or thermal. Also, still other functions are conceivable, for example, automatic actuation of a drain valve. As to the keys 64, for cold water only or hot water only, right or left respectively, to avoid accidental scalding the "START-STOP"
key must be pressed after pressing the lefthand key 64 if hot water operation is intended. As to the "VOL. IN ~", provision is made 50 that a setting from 20% is available for shower operation and any volume set~ing for tub operation. The valves 12,13,14 are of conventional type, with cartridge-shaped housing 63 and stops 66. Lastly, of course, surface-mounted designs may be preferred, as well as variants serving purposes other than tub and shower operation.
Claims (7)
- Claim 1 - A temperature-controlled mixing fitting having hot and cold water and discharge passageways comprising:
a control module housing electronic means and having at least one valve for mixing, shutting off and distribution of water flow therethrough, with at least one temperature sensor operably coupled to said discharge passageway and being in fluid communication therewith, and an electromechanical motor module including electronically operated drive means and being adapted to electrically connect at least one motor and said at least one temperature sensor for automatically controlling the flow of hot and cold water discharged through said discharge passageway. - Claim 2 - An electronically temperature-controlled mixing fitting for sanitary use, comprising:
a valve module having at least one valve for mixing, shutting off and proportioning of water flow through said fitting and at least one temperature sensor for the mixed water, an electromechanical motor module including at least one motor having electrical contacts and operably coupled to said at least one temperature sensor, and drive means for electrically operating said at least one valve in response to an electrical signal received from said at least one temperature sensor, and a control module housing electronic means for operating said fitting. - Claim 3 - The mixing fitting, in accordance with Claim 1, wherein:
said valve module includes at least one cold water inlet, a hot water inlet and a mixed water outlet, with apertures to which are mounted a hot water and a cold water valve, each of said valves having temperature sensors operably mounted thereto, and a temperature sensor operably mounted to said mixed water outlet, a motor/transmission module having at least one motor for cold water and one motor for hot water, each motor having a means for coupling a gear unit and a manual operating means, said coupling means including electrical contacts for electrically connecting each temperature sensor. - Claim 4 - The mixing fitting, in accordance with Claim 3, wherein said motor/tansmission module includes a printed circuit board which is disposed adjacent to said valve module, said printed circuit board having circuitry for electrically operating said temperature sensors and said motors of said mixing fitting.
- Claim 5 - The mixing fitting, in accordance with Claim 1, wherein said control module includes plug means to electrically connect a printed circuit board housed therein with said motor/
transmission module. - Claim 6 - The mixing fitting, in accordance with Claim 2, wherein said control module includes a keypad having indicator means for the various functions for operating said fitting.
- Claim 7 - The mixing fitting, in accordance with Claim 2, wherein said control module includes manual means for operating said fitting due to a power failure.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3718039.8 | 1987-05-28 | ||
| DEG8707661.6 | 1987-05-28 | ||
| DE3718039A DE3718039C2 (en) | 1987-05-28 | 1987-05-28 | Electronically temperature-controlled mixer tap |
| DE8707661U DE8707661U1 (en) | 1987-05-28 | 1987-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1288746C true CA1288746C (en) | 1991-09-10 |
Family
ID=25856115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 567690 Expired CA1288746C (en) | 1987-05-28 | 1988-05-25 | Electronically temperature-controlled mixer fitting |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1288746C (en) |
-
1988
- 1988-05-25 CA CA 567690 patent/CA1288746C/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |