FR2646365A1 - COMPONENT COMPRISING AN ELECTRIC CIRCUIT FOR A SUCTION HOOD AND AN ELECTRIC CIRCUIT FOR A COOKING STATION - Google Patents

Abstract

The invention relates to a control device for an appliance of the extractor hood type, or equivalent, combined with a cooking station, for example an oven, a hob, a stove. Each control member CM of the cooking station is equipped with a coupling means FL placed in series in the supply circuit of the ventilation motor FV by means of a connection means FL, each of said coupling means being provided to control the hood by the cooking station. Field of application: household appliances.

Description

The invention relates to a control device for filter block or

  extractor hood or smoke sensor combined with a cooking station for example an oven, a

cooktop, stove.

  In the current state of the art, the controls of the hood are completely independent of those of the cooking station and are generally placed on the hood itself; they have one or two control switches in series with a fan motor speed selector. As an example of the state of the art, reference will be made to the wiring diagram (FIG. 1) of a filter hood currently marketed by the Applicant. The electrical circuit includes two parallel-mounted light bulbs (e), a ventilation motor (d), a terminal strip (a) and a control panel (f) having a dual switch

(b) and a special inverter (c).

  The power supply is between the neutral and a phase of the 220 V sector by points al and a2 of the bar (a). In order to separate the lighting control and the motor control (d), the two lighting and ventilation circuits are connected in parallel to points (a1) and (b2b6) on the one hand, (al ) and (blb5) on the other hand, (b6) and (b5) being bridged. The choice of a speed of

  ventilation is done on the special inverter (c).

  On the other hand, there are hoods controlled by a switch functionally independent of the cooking station but placed on the control panel of it, this is the case of the hood-cover described in the application

FR 2,618,884.

  In all cases, the start and stop of the suction process are left to the discretion of the user. Sometimes it forgets the control of the hood, which results in either a build-up of steam for an omission of start-up, or excessive consumption and annoyance in noise for

an oversight of the judgment.

  In order to remedy these drawbacks, the applicant had the idea of linking the control of the hood to the control of the cooking station and thus posed a new problem and created a new function: the "piloting" of the

hood by the cooking station.

  In addition, the applicant has sought a device that allows both to create this new function while maintaining independence between functions

lighting and ventilation.

  The assembly of the electric circuit for a hood and the electric circuit for a cooking station according to the invention comprises, in a known way in particular, a supply circuit of the ventilation motor of the hood and a control member associated with each home of the cooking station, and is characterized in that each of said control members is equipped with a coupling means of the type (electrical contact, signal encoder) placed in series in the supply circuit of the ventilation motor by a means connection (g) between the hood and the cooking station, each of said coupling means being provided to close the ventilation circuit at the start of the control member associated with the corresponding cooking station, and to open the circuit ventilation at

  cutting said control member.

  This assembly according to the invention can present

  several variants.

  According to a first variant, the electrical circuit of the hood comprises a lighting circuit totally independent of the ventilation circuit, in this case a lighting switch, for example located on the hood allows the start and stop of the hood. lighting regardless of the operating state of the fan, this variant embodiment requires a modification of the

standard hood.

  According to a second variant, the lighting as well as the ventilation are controlled by starting at least one of the fires of the cooking station and stopped by the

cut off all homes.

  According to a third variant, which can be associated with one or other of the two previous variants, the stopping of the ventilation is deferred with respect to the cutting of all the control members, by means of a timer or any equivalent way. Said timer also having the function of enabling the start of the

  ventilation when all fireplaces are off.

  The invention will be better understood by means of the

  description hereinafter made with reference to the figures

  annexed below: Figure 1 is a diagram of hood wiring

illustrating the state of the art.

  Figure 2 is a hood wiring diagram

according to the invention.

  FIG. 3 is a schematic diagram of the electrical circuit of the control panel of a cooking station

associated with the diagram of Figure 2.

  Figures 4 and 5 are tables of the states of

  operation of the contacts of FIG.

  Figures 6 and 7 are block diagrams

  various embodiments described below.

  Several variants of the invention

  are described below as an example.

  1st variant: Reference will first be made to FIG. 3, which shows the wiring of the control panel of a four-hearth hob whose positions are referenced on the referenced rectangles (SE, NO, NE, SO). The lines (AA ', BB', CC ', DD', EE ') use a cabling principle known per se. Each line (AA ', BB') comprises a focus (KSE, KNO) controlled respectively by a switch (CSE, CNO) whose different contacts are appropriately connected to the terminals (1, 2, 3, 4) of the resistors. focus - 4 - corresponding. Each line (CC ', EE') comprises a focus (KNE, KSO) controlled respectively by an energy metering device (DNE, DSO) whose contacts (PI, 2) and (P2, 4) are appropriately connected to terminals (1, 2, 3, 4) of the corresponding hearth resistors. The line (DD ') comprises the additional resistors (KFA) of the foci (KNE and KSO) whose series setting is controlled by the contacts (DNE,

4A) and (DSO, 4A).

  The lines (FF '> to (KK') in the upper part

  of Figure 3 are specific to the present invention.

  (BBH1, BBH2, BBH3) are the terminals of a branch bar (BBH) of the cooking station. The terminals (BBH1) and (BBH3) are connected directly to the lines 2 and 4 (or neutral) in (K) and (K '). Four contacts (CSE, P3, 5) (DNE, SS) (CNO, P3, 5) (DSO, SS) linked respectively to the switches or dosers of the fireplaces, as well as a timer contact (CMI), are connected in parallel between the

  points (F. G, H. I, J) of line 2 and the terminal (BBH2).

  The timer motor (MI) and a signal lamp (VS) are connected in parallel between (BBH2)

and line 4.

  The operating states of all the contacts of FIG. 3 are shown in the tables of FIGS. 4 and 5. Reference will now be made to FIG. 2. The new electrical circuit of the hood has an unchanged portion with respect to FIG. : lighting (e), fan (d), special inverter (c) and switch

double (b).

  The branch bar (a ') of the hood has been modified and comprises three input terminals (a'l, a'2, a'3) instead of two for the bar (a) of FIG.

  bridging on the double switch is removed.

  The terminals (a'1, a'2, a'3) are respectively connected to the terminals (BBH3, BBH1, BBH2) of FIG. 3 by any appropriate connection means, for example a cable

electric (g).

  -5- The lighting circuit is connected to the terminals (a'l) and (a'2) of the bar (a ') and controlled by the contact (b2, b6) of the switch (b). The ventilation circuit is connected to the terminals (a'1) and (a'3) and controlled by the contact (blb5) of

  the switch (b) linked to the special inverter (c).

  The modification at the bar (a '), the addition of the line (a'3, b5) in FIG. 2, and the addition of the lines (FF') to (KK ') of FIG. for functions on the one hand to link the ventilation control only, -at the start of at least one of the cooking stoves or the start of the timer, on the other hand to allow the lighting of the workstation independently of the start of the ventilation. The possibilities of this first embodiment are mainly: 1.1. The user chooses a speed of

  ventilation on (c) which closes the contact (bl, b5).

  As soon as at least one of the cooking stoves is started, at least one of the contacts (CSE, DNE,

  CNO, DSO) closes and ventilation starts.

  Conversely, as soon as all four fireplaces are off, and the timer is not activated, ventilation stops. So all you have to do is leave a selected ventilation speed permanently so that the ventilation starts automatically when you start

road from at least one home.

  1.2. In the event that the user would like to prolong the ventilation, after cooking, for example to remove remaining vapors, it is sufficient to display a duration on the timer MI. The contact closure (CMI) will supply the fan for the corresponding duration. - 6- 1.3. The control of the lighting is done by the switch (b2, b6), the lighting can be used with or without ventilation. This is for example advantageous when the user uses his glass-ceramic hob as a worktop, but requires a modification of the bar (a ') and the addition of the wire

(a'3, b5).

  2nd variant: The hood used is the standard hood whose wiring is that of FIG. 1. The connection means (g) connect the terminals (a1 and a2) of FIG.

(BBH2 and BBH3) of Figure 3.

  Possibilities of use noted previously 1.1. and 1.2. remain but it is no longer possible to switch on the lighting alone. The advantage of this second example is the use of the standard hood without modification, which may be of industrial interest

and economic.

  Moreover, one can provide many embodiments without departing from the scope of the present invention. Among the variants of the connecting means (g), there may be mentioned for example: an infrared link which, as soon as a cooking zone fire is started, triggers an emission by LED of coded infrared, and picked up by a receiver placed on the hood and then transformed into the running order of the

ventilation; -

  - a detection of heat or humidity or pressure that starts the hood as soon as a change in heat or humidity is detected; - an application in home automation, where the lines of the sector ensure the transmission of signals to domestic appliances. In this case, each time a switch of the cooking station is operated, a signal is transmitted to the

  hood that decodes it and puts itself in the requested state.

  -7 - - a variant by remote control which starts

  the fireplaces of the cooking station and the ventilation.

  Among the variants of cooking stations can be mentioned for example i - a built-in hob called lever, in this case the number of homes varies from 1 to 4, and the control levers of the switches and / or energy meters are positioned on the table plan; - a built-in hob combined with an oven, the controls of the plate including the timer are on the banner of the oven; - one or more "domino" cooking placed side by side, such as a fryer, a grill; - a workstation at a restaurant or restaurant

industrial kitchen.

  Among the filter block variants, mention may be made of

for example:

  - a suction unit for industrial kitchen; - a domino-grill extractor, placed inside the domino; - an extractor placed below the hob. Whatever the variants proposed, it can be said that the embodiments explained above operate according to the functional diagrams of FIGS. 7 and 8, where the control of the cooking station (CM), the Link function (FL), the ventilation function (FV). For example, it is possible to place the lighting function (FE) in parallel on all the other three functions (FIG. 6) or in parallel on the ventilation only (FIG. 7), theoretically other variants would still be possible.

for the lighting function.

  In addition we can place, in parallel on (CM) for example, a function (FD) to delay the execution of the

  control function of the cooking station (CM).

- -8-

Claims (9)

  1. Assembly consisting of an electrical circuit for the type of apparatus (extractor hood, filter block, smoke and odor sensor) and an electric circuit for a cooking station comprising in particular a power supply circuit of the ventilation motor of the hood and a control member associated with each hearth of the cooking station, characterized in that each of said control members (CM) is equipped with a coupling means (FL) of the type (electrical contact, signal smell) set in series in the supply circuit of the ventilation motor (FV) through a connecting means (FL) between the hood and the cooking station, each of said coupling means being provided for closing the ventilation circuit at the setting of route of the control member associated with the corresponding cooking station, and to open the ventilation circuit at   cutting said control member.   2. Assembly according to the preceding claim characterized in that each control member (KSE, KNO, KFA, KSO) of the cooking station is equipped with an electrical contact (CSE, DNE, CNO, DSO) whose closure and the opening are controlled respectively by switching on and off the corresponding control device, each electrical contact (CSE, DNE, CNO, DSO) being placed in series in the power supply circuit of the motor.   ventilation by a connecting means (g).   3. Set according to any one of   preceding claims, characterized in that the substation   additionally includes a timer whose contact (CMI) is connected in series with the supply circuit of the   ventilation motor by the connecting means (g).   4. An assembly according to any of the claims   previous characterized in that the electrical circuit of the cooking station comprises on the one hand a branch bar (BBH) whose terminals (BBH1) and (BBH3) are connected directly to the lines 2 and 4 (or neutral) in (K) and (K '), and on the other hand four contacts (CSE, P3, 5) (DNE, SS) (CNO, P3, 5) (DSO, SS) respectively connected to the control members (switches, dosers ) fireplaces, as well as a timer contact (CMI), all connected in parallel between the points (F, G, H, I, J) of line 2 and the terminal (BBH2).   5. An assembly according to the preceding claim characterized in that the connection strip (a ') of the hood comprises three terminals (a'1, a'2, a'3) connected respectively to the terminals (BB3, BB1, BB2) of 3 by any suitable connecting means (g), the lighting circuit being connected to the terminals (a'l) and (a'2) of the bar (a ') and controlled by the contact (b2, b6). ) of the switch (b), the ventilation circuit being connected to the terminals (a'l) and (a'3) and controlled by the contact   (blb5) of the switch (b) linked to the special inverter (c).   6. The assembly of claim 4 characterized in that the hood used is the standard hood, and in that the connecting means (g) connect the terminals (a1) and (a2) of the hood of the connection bar respectively to terminals (BBH2) and (BBH3) of the terminal strip (BBH), the lighting circuit and the ventilation circuit being connected in parallel to the terminals (a1) and (a2).   7. Set according to any one of   preceding claims characterized in that the means   link (g) is an infrared link which, upon starting a cooking station firebox, triggers an emission by LED coded infrared, and picked up by a receiver placed on the hood, then transformed into ventilation operation. - 10 -   8. Set according to any one of   Claims 1 to 6, characterized in that the means of   link (g) is a means of detection of heat or humidity which starts the hood as soon as a detection of   variation of heat or humidity.   9. Set according to any one of   Claims 1 to 6, characterized in that the lines   provide signal transmission to household appliances. In this case, each time a switch of the cooking station is operated, a signal is transmitted to the   hood that decodes it and goes into the requested state.