ES2716449B2 - COOKING FIELD DEVICE - Google Patents

Description

DESCRIPTION

COOKING FIELD DEVICE

The present invention relates to a cooking range device according to the preamble of claim 1 and to a method for assembling a cooking range device according to the preamble of claim 13.

From the state of the art, cooking field devices having multiple heating units with each one heating element are already known. Each of the heating units is connected with at least one cable to a power supply board. The cables have different lengths depending on how far apart the heating units are from the power supply board. Thus, when mounting the cooking field device, it is necessary to pay great attention and act with great care, since each of the heating units must be arranged in the position provided for the corresponding heating unit with respect to the power supply board and / or the appropriate cables must be used accordingly.

The present invention solves the technical problem of providing a generic cooking field device with better properties in terms of mountability. According to the invention, this technical problem is solved by the characteristics of claims 1 and 13, while advantageous embodiments and improvements of the invention can be drawn from the sub-claims.

The invention relates to a cooktop device, in particular to an induction cooktop device, with at least four, preferably with at least six, advantageously, with at least eight, so particularly advantageous, with at least twelve, preferably with at least fifteen and, particularly preferably, with multiple heating units and with at least one functional plate having a main electrical and / or electronic function, where the device of cooktop has at least one connecting plate having at least one printed circuit board through which the heating units are electrically conductively connected to the functional plate and at least one support unit, which supports the minus one of the heating units on the connection plate.

By the embodiment according to the invention, simple and / or fast and / or inexpensive assembly can be achieved in the case of a large number of heating units. In particular, the heating units can be arranged with flexibility in a relative position with respect to the functional plate. The electrical connection unit that connects one of the heating units to the connection board can be identical for each of the heating units, so that connection units configured differently are not necessary and thus it is possible to achieve a simple and / or fast and / or economical assembly. In a particularly advantageous way, a high efficiency is possible during the heating of the cooking battery as there are few electrical losses, which can be ensured thanks to the reduced extension of the connection unit connecting the heating units to the connection plate. Also, reduced storage can be achieved thanks to identically made electrical connection units. In the event of problems, an oversized connection unit can be excluded as the cause, so troubleshooting can be simplified. Thanks to the connection plate and / or thanks to the functional plate, it is possible to achieve great flexibility, since for each embodiment a plate configured correspondingly to the needs can be provided.

The term "cooktop device", in particular, "induction cooktop device" includes the concept of at least a part, specifically, a constructive subgroup, of a cooktop, in particular, of a cooktop. induction cooking. The term "heating unit" includes the concept of a unit that is provided to supply power to at least one cooking battery in at least one operating state in order to heat the cooking battery. The heating unit could be realized, for example, as a resistance heating unit, and be provided to transform the energy into heat and supply it to the cooking battery in order to heat it. Alternatively or additionally, the heating unit could be realized as an induction heating unit and be provided to supply the cooking battery with energy in the form of an alternating electromagnetic field, where the energy supplied to the cooking battery could be transformed into heat in the cooktop.

The heating units are arranged in a regular pattern and, advantageously, in the form of a matrix. In addition, the heating units define a variable area of the cooking surface on which the cookware can be placed in any position for heating. At least two of the heating units are arranged in a row. In particular, at least two of the heating units are arranged in a row. The heating units in one row and / or in a row are arranged at the same height as the heating units in another row adjacent to the row and / or in another row adjacent to the row. Alternatively, the single-row and / or single-row heating units could be arranged offset from the heating units. heating of another row adjacent to the row and / or with respect to another row adjacent to the row.

The term "functional board" includes the concept of a unit that has a main electrical and / or electronic function that transcends the mere electrical connection. By way of example, the main function of the functional board could be to provide electrical energy in the form of current. Alternatively or additionally, the main function of the functional board could be the evaluation of at least one parameter, in particular, of at least one sensor parameter. The functional board has at least one printed circuit board and at least an electrical and / or electronic construction unit, which is arranged next to the printed circuit board and which performs the main function of the functional board in at least one operating state. The construction unit could have, for example, at least one transistor and / or at least one inverter and / or at least one control unit and / or at least one evaluation unit.

The term "connection board" includes the concept of a unit presenting at least one printed circuit board, at least one first contact area, arranged next to the printed circuit board, through which at least one of the heating units is electrically conductively connected to the printed circuit board, and at least one second contact area, arranged adjacent to the printed circuit board, through which at least the functional board is electrically conductively connected with the printed circuit board. The first contact area and the second contact area are arranged at a distance from each other. For example, the first contact area and the second contact area could be arranged at a distance from each other when viewing perpendicularly the connection plate on the main extension plane of the printed circuit board.Alternatively or additionally, when observing the connection plate On, the first contact area and the second contact area could be disposed spaced from each other in a viewing direction oriented parallel to the main plane of extension of the printed circuit board, and could have a distance that could be defined by the thickness of the printed circuit board. The first contact area and the second contact area could be arranged on different and opposite sides of the printed circuit board. The connection plate has at least one conductive track arranged next to the printed circuit board, through which the first contact area and the second contact area are electrically conductively connected. The current and / or the signals flow between the heating units and the functional board through the connection board.

The term "principal plane of extension" of an object includes the concept of a plane that is parallel to the largest lateral surface of the smallest imaginary geometric parallelepiped that tightly encloses the object completely, and which runs through the center point of the parallelepiped. The connection plate has at least one main function consisting of the electrically conductive connection between the heating units and the functional plate. The connection plate differs from a supply unit, in particular a current supply unit, and / or an evaluation unit and / or a control unit and / or a sensor unit.

The term consisting of a first object and a second object being "electrically conductively connected" includes the concept that there exists at least one conduction path that electrically connects the first object and the second object together and through which electrical energy can be exchanged in at least one operating state between the first object and the second object. In at least one operating state, electric current flows from the first object to the second object and / or from the second object to the first object. consisting of a first object being electrically conductively connected to a third object "through" a second object includes the concept that there exists at least one current path that electrically conductively connects the first object and the third object and leading through the third object.

The cooking field device has at least one electrical connection unit that electrically conductively connects at least one of the heating units, in particular, at least a large part of the heating units and, advantageously, each of the heating units, with the connection plate. The connection unit could, for example, have at least one cable and / or one plug and / or one socket. Alternatively or additionally, the connection unit could have at least one electrically conductive connection element, which could be made at least partially in one piece with a support unit, in particular with at least one support element of the support unit and / or with at least one spring element of the support unit.

Furthermore, the cooking field device has at least one other electrical connection unit that electrically conductively connects the connection plate to the functional plate. The other connection unit could, for example, have at least one cable and / or one plug and / or one socket.

The term “planned” includes the concepts of specifically scheduled, conceived and / or provided. The expression that an object is intended for a specific function includes the concept that the object satisfies and / or performs this specific function in one or more states of application and / or operation.

By way of example, at least one of the heating units, in particular at least a large part of the heating units and, advantageously, each of the heating units, could have at least one heating element that could be made as a resistance heating element. Preferably, at least one of the heating units, in particular at least a large part of the heating units and, advantageously, each of the heating units, has at least one induction heating element. Advantageously, the induction heating element is provided to generate an alternating electromagnetic field with a frequency between 20 kHz and 100 kHz, which is intended to be transformed into heat at the base of a metallic, preferably ferromagnetic, cooking battery. , supported on top by induction of eddy currents and / or magnetic reversal effects. The term "large part" of the heating units includes the concept of a percentage of at least 50%, preferably, at least 70%, advantageously, at least 80%, and preferably 85% as minimum number of heating units. In this way, it is possible to heat the supported cooking battery quickly and / or optimally, and it is possible to avoid that the heating time is longer as could be the case with a heating element realized as a resistance heating element.

Furthermore, it is proposed that at least one of the heating units, in particular, at least a large part of the heating units and, advantageously, each of the heating units, has at least one sensor element. it could be an infrared sensor. Alternatively or additionally, the sensing element could be at least one electrical and, advantageously, temperature-dependent resistor such as, for example, an NTC resistor and / or a PTC resistor. The sensor element is designed as a temperature sensor. The sensor element could be provided, for example, to detect a parameter that characterizes the temperature of a cooking battery resting on it and / or a parameter that characterizes the temperature of a heating element of the heating unit and / or a parameter that characterize the temperature of a cooktop plate. The term "sensor element" includes the concept of an element that has at least one detector to detect at least one sensor parameter and which is intended to emit a value characterizing the sensor parameter, where the sensor parameter is advantageously a physical and / or chemical quantity. In this way, great user comfort can be achieved, as the temperature of the cooking battery can be optimally regulated, thereby achieving optimal cooking results.

Likewise, it is proposed that the functional board has at least one current supply unit to supply energy to at least one of the heating units, in particular, to at least a large part of the heating units and, advantageously, to each of the heating units. The functional board has at least one transistor and / or at least one inverter that, in at least one operating state, provides a high-frequency electrical current to supply energy to at least one of the heating units, specifically, to at least one large part of the heating units and, advantageously, to each of the heating units. In this way, it can be ensured that sufficient energy is supplied to the heating unit thanks to the protected arrangement of the functional board that the supply unit has, which is arranged spatially separated from the heating unit by the connection board.

Furthermore, it is proposed that the connection plate is arranged approximately or exactly parallel to the functional plate. The main extension plane of the connecting plate is arranged approximately or exactly parallel to the main extension plane of the functional plate. Furthermore, the main extension plane of the connection plate is arranged approximately or exactly parallel to the main extension plane of at least one of the heating units, in particular, of at least a large part of the heating units and, therefore, advantageously, of each of the heating units. The expression "approximately or exactly parallel" includes the concept of the orientation of a direction relative to a reference direction in a plane, where the direction presents a deviation of less than 8 ° with respect to the reference direction, advantageously, less than 5 ° and, particularly advantageously, less than 2 °. Thus, a compact embodiment can be achieved. In particular, it is possible that the distance between the functional plate and the connection plate is constant throughout the entire extension of the functional plate and / or the connection plate, so that all areas of each of them can be exposed. essentially at the same load.

The connecting bar has a minimum distance of at least 1 mm, preferably at least 2 mm, advantageously at least 5 mm, particularly advantageously at least 10 mm, and preferably at least 10 mm. of at least 15 mm with respect to the functional plate, and a minimum distance of at most 50 mm, preferably of A maximum of 40 mm, advantageously, a maximum of 35 mm, particularly advantageously, a maximum of 30 mm and, preferably, a maximum of 25 mm relative to the functional plate. The distance is measured perpendicular to the main extension plane of the connecting strip and / or the main extension plane of the functional strip. In this way, a protected arrangement of the functional plate and, with it, a durable construction is made possible.

Furthermore, it is proposed that the connection plate has a minimum distance of at least 1 mm, preferably at least 2 mm, advantageously at least 5 mm, particularly advantageously, at least 8 mm and preferably at least 10 mm with respect to at least one of the heating units, in particular, to at least a large part of the heating units and, advantageously, to each of the heating units. The connection plate has a minimum distance with respect to at least one of the heating units, in particular, to at least a large part of the heating units and, advantageously, to each of the heating units. Thus, it is made possible that there is a sufficiently large air gap between the connection plate and the heating unit, whereby thermal insulation can be provided to the connection plate from the heating unit. Likewise, a simple assembly can be achieved thanks to the good accessibility of the area between the connection plate and the heating unit.

Furthermore, it is proposed that the connection plate has a minimum distance of not more than 35 mm, preferably not more than 30 mm, advantageously not more than 25 mm, particularly advantageously not more than 22 mm and preferably, a maximum of 20 mm with respect to at least one of the heating units, in particular, to at least a large part of the heating units and, advantageously, to each of the heating units. In this way, a compact embodiment can be achieved.

The cooking field device has at least one support unit, which supports at least one of the heating units, specifically, at least a large part of the heating units and, advantageously, each of the heating units. heating, on the connection plate. The term "support unit" includes the concept of a unit that absorbs the force of the weight of the heating unit and transmits the force of the weight to the connection plate. The support unit mechanically joins the heating unit to the plate For each heating unit, the support unit has at least two support elements, the

which support the heating unit on the connecting plate and transmit and / or transfer the force of the weight of the heating unit to the connecting plate approximately or exactly uniformly. Thus, great stability can be achieved.

By way of example, the support unit could exclusively have fully or largely rigid support elements. However, preferably, the support unit has at least one spring element, which is provided to press the heating unit against a cooktop plate. For each heating unit, the support unit has at least two spring elements which are intended to press the heating unit against the cooktop plate. The spring element has at least one compression spring, in particular at least one conical spring and / or at least one helical spring. The spring element could be made of steel, in particular spring steel, hardened partially or completely, preferably largely or completely, and particularly preferably completely. Alternatively or additionally, it is conceived that the spring element is composed of a plastic, an alloy and / or a partially or completely composite material, preferably largely or completely, and particularly preferably , completely. The spring element has a spring constant of not more than 20 N / mm, advantageously not more than 15 N / mm, preferably not more than 10 N / mm, and particularly preferably not more than 5 N / mm maximum. The spring element is formed by at least one, preferably exactly one wire, partially or completely, preferably largely or completely, and particularly preferably completely. The cooktop device has at least one cooktop plate. The term "cooktop plate" includes the concept of a unit that in at least one operating state is intended to support at least one cooktop on top, and which is intended to form a part of an outer casing of the cooktop. cooktop device, in particular of the cooktop device and / or of a cooktop that has the cooktop device. In the installed position, the cooktop plate forms a part of the outer casing of the cooktop. The cooktop is directed towards the user. The cooktop plate is made up largely or entirely of glass and / or glass-ceramic. The expression "largely or completely" includes the concept of in a percentage, specifically, a percentage by weight and / or percentage by volume of at least 70%, preferably at least 80%, advantageously at least 90%, and preferably at least 95%. In this way, it is possible to optimize the distance of the heating unit with respect to the theoretical positioning position for a cooking battery defined by the hob. cooking range, so that the cookware can be heated in a designated frequency range and thus optimal cooking results can be achieved. Thanks to the spring element, the forces acting during transport can be compensated, so that the position of at least one of the heating units relative to the cooktop plate can be maintained and thus an optimal coupling of the corresponding heating unit with the cooking battery resting on it.

The support element and the spring element could be different construction units from one another. The support element and the spring element are preferably made in one piece. The spring element supports at least one of the heating units, specifically, at least a large part of the heating units and, advantageously, each of the heating units, on the connection plate. Thus, reduced storage becomes possible.

By way of example, the support unit could define at least one guide path along which at least one cable of the connection unit could be led which electrically conductively connects at least one of the heating units to one another. and the connection plate. Preferably, the heating unit is electrically conductively connected to the connection plate via the support unit. The connection unit and the support unit are made at least partially in one piece. The support element of the support unit and / or the spring element of the support unit are made largely or completely of at least one electrically conductive material and, in at least one operating state, connect the drive unit. heating with the connection plate. The support element of the support unit and / or the spring element of the support unit are also part of the connection unit. The expression consisting of a first unit and a second unit being made "at least partially in one piece" includes the concept that the first unit has at least one element that is also part of the second unit at the same time. The spring is made largely or completely of at least one electrically conductive material and has an electrical conductivity of at least 3 * 106, advantageously at least 107 N / mm, preferably at least 5 * 107 S / m and, particularly preferably, at least 7 * 107 S / m. In this way, reduced storage is possible and / or that there is little diversity of constructional units.

Alternatively or additionally, the heating unit could be electrically conductively connected to the connection plate via a heating unit. electrical connection which could be different from the support unit. By way of example, the electrical connection unit could have at least one cable, which could be mechanically installed next to the support element and / or next to the spring element and / or which could be guided through the support element and / or or through the spring element.

The support unit could, for example, have at least one support element that could support the heating unit on the surface of the connection plate. By way of example, the support element could be connected to the connection plate, in particular, to the surface of the connection plate in a material connection, for example, by means of a glue connection and / or by means of a welding connection. hint. Preferably, the support unit has at least one gear element, which engages at least partially in the connection plate. The expression consisting in that the gear element meshes "at least partially" in the connection plate includes the concept that the gear element has at least one partial area that meshes with the connection plate and / or crosses the plate. The connection plate has at least one gear recess in which the gear element at least partially meshes. The support unit could be connected to the connection plate in an electrically conductive manner by contacting THD, being the development of the acronym “Through Hole Device.” In this way, a particularly stable mechanical connection can be made possible.

Furthermore, it is proposed that the support unit has at least one contacting element, which is tin plated with the connection plate. By way of example, the contacting element could be tinned with the surface of the connection plate. Alternatively or additionally, the contacting element could be made at least partially in one piece with the gear element and could be tin plated with the connecting strip in an at least partially engaged state on the connecting strip. The term "contacting element" includes the concept of an element that defines and / or conforms at least partially an electrical contacting. The contacting element is made largely or completely of at least one conductive material electrically, which has an electrical conductivity of at least 103 S / m, preferably at least 104 S / m, advantageously at least 105 S / m, particularly advantageously at least 106 S / m and, preferably, at least 107 S / m. The support unit could be electrically conductively connected to the connection plate, for example by contacting SMD, the development of the initials being " Surface-Mounted Device ” . In addition to the contact element, the support unit has at least another contacting element, which is provided for the electrical contacting of the spring element and the heating unit, in particular at least one induction heating line of the heating unit. The other contacting element at least partially defines a housing space that is intended to house at least a part of the induction heating line of the heating unit, specifically, a non-insulated part of the heating line by induction heating unit. In at least one operating state, the other contacting element contacts the heating unit in an electrically conductive manner thanks to the contacting caused by crimping. Thus, it is possible to establish an electrically conductive connection particularly simply. Furthermore, a particularly stable electrically conductive connection is made possible.

The cooking field device has at least one shielding element that is arranged between the heating units and the functional plate, specifically, between the connection plate and the functional plate, and which shields the functional plate to a large extent or completely with respect to the heating units in at least one operating state. The term "shielding element" includes the concept of an element that is intended to shield at least the functional plate from electromagnetic radiation, specifically, thermal radiation and / or magnetic fields and / or electric fields, caused by at least one of the heating units Preferably, the shielding element is largely or entirely composed of a non-magnetic and electrically conductive material, in particular a metal and, advantageously, aluminum. form, the functional board can function without disturbances.

The cooktop device could, for example, have at least one user interface, which could be arranged next to the connection plate and, advantageously, connected to it in an electrically conductive manner, so that a connection can be dispensed with. additional connection unit in the form of cables and / or easy handling can be achieved. Alternatively or additionally, the cooking field device could have at least one lighting unit and / or at least one indicator unit that could have at least one light diode. The lighting unit and / or the indicator unit could be arranged adjacent to the connection plate and, advantageously, connected to it in an electrically conductive manner, thereby making it possible for the distance from the lighting unit and / or of the display unit with respect to the hob plate and / or with respect to the position to be illuminated is reduced. Alternatively or additionally, the cooking field device could, for example, have at least one sensor unit that could be made separately from the sensor element of the cooking units. corresponding heating systems and which could be provided to detect the temperature of at least one of the heating units and / or of at least the connection plate. By way of example, the sensor unit could be arranged adjacent to the connection plate and, advantageously, connected thereto in an electrically conductive manner. Thus, it is possible to integrate and / or implement various functions in a small space, which makes a compact realization possible.

Particularly simple assembly can be achieved by means of a cooktop, in particular by an induction cooktop, with at least one cooktop device.

Mountability can be further improved through a method for mounting a cooking range device with at least four, preferably with at least six, advantageously, with at least eight, particularly advantageously with at least twelve, preferably with at least fifteen, and particularly preferably with multiple heating units, wherein the heating units are electrically conductively connected to at least one functional board through at least one common connection plate.

The cooking field device that is described is not limited to the application or the embodiment set forth above, and in particular it may have a number of particular elements, components, and units that differ from the amount mentioned in the present document. , as long as the aim is to fulfill the functionality described here.

Other advantages appear from the following description of the drawing. Exemplary embodiments of the invention are represented in the drawing. The drawing, description and claims contain numerous features in combination. The person skilled in the art will advantageously also consider the characteristics separately, and will bring them together in other reasonable combinations.

They show:

Fig. 1 a cooking range with a cooking range device, in a schematic top view,

Fig. 2 six heating units, a support unit, and a connection plate for the cooking range device in a first assembly step, in a schematic representation,

Fig. 3 the heating units, the support unit, and the connection plate in a second assembly step, in a schematic representation, Fig. 4 a support element of the support unit in a side view (a) and in a front view (b) in a procedure step, in a schematic representation,

Fig. 5 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 6 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 7 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 8 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 9 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 10 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 11 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 12 the support element in a side view (a) and in a front view (b) in another step of the procedure, in a schematic representation,

Fig. 13 one of the heating units, the support unit, and a section of the connection plate in the assembled state, in a schematic representation,

Fig. 14 some of the heating units and the connection plate, in a schematic top view,

Fig. 15 a functional plate of the cooking field device, in a schematic top view,

Fig. 16 the heating units, the support unit, the connection plate, and the functional plate in the assembled state, in a schematic representation, Fig. 17 a support element of a support unit of a field device alternative cooking in a side view (a) and in a front view (b), in a schematic representation, and

Fig. 18 a heating unit, a support unit, and a section of a connection plate of an alternative cooking range device in the assembled state, in a schematic representation.

FIG. 1 shows a cooking range 36a, which is realized as an induction cooking range, with a cooking range device 10a, which is designed as an induction cooking range device.

The cooktop device 10a has a cooktop plate 30a. In the assembled state, the cooktop plate 30a forms a part of the outer casing of the cooktop 36a. The cooking range plate 30a is provided to support at least one cooking battery (not shown) on it.

Furthermore, the cooking field device 10a has multiple heating units 12a. Only one of each of the objects present several times is accompanied by a reference symbol in the figures. In this exemplary embodiment, the cooking field device 10a has thirty-six heating units 12a. In the installation position, the heating units 12a are arranged below the cooktop plate 30a. The heating units 12a are provided to heat the cooking battery placed on the cooking range plate 30a above the heating units 12a.

In addition, the cooking field device 10a has a user interface 38a for entering and / or selecting operating parameters, for example, the heating power and / or the density of the heating power and / or the heating zone. heating. Also, the user interface 38a is provided to output the value of an operating parameter to the user.

The cooking field device 10a also has a control unit 40a. The control unit 40a is provided to execute actions and / or modify settings depending on the operating parameters entered via the user interface 38a. In a heating operation state, the control unit 40a regulates the power supply to the heating units 12a.

Each of the heating units 12a has an induction heating element 18a (see Figures 1 to 3, 13 and 16). Next to the induction heating element 18a, each of the heating units 12a has a sensor element 20a (see FIG. 1). In this exemplary embodiment, the sensor element 20a is designed as a resistive sensor, in particular as an NTC resistor.

Each of the heating units 12a further has a ferrite element 42a (see Figures 2, 3 and 13). In the installation position, the ferrite element 42a is arranged below the induction heating element 18a. Each of the heating units 12a has a heating unit support element 44a (see FIG. 13). The heating unit support element 44a is designed as a plate. In the assembled state, the ferrite element 42a is arranged to one side of the induction heating element 18a directed towards the heating unit support element 44a. The heating unit support element 44a is arranged on one side of the heating unit 12a directed towards a functional plate 14a.

The cooking field device 10a has the functional plate 14a (see Figures 15 and 16). The functional board 14a has a current supply unit 22a for supplying power to the heating units 12a. The power supply unit 22a provides a high frequency alternating current to supply power to the heating units 12a. Next to the power supply unit 22a, the functional board 14a has a cooling unit 46a for cooling the power supply unit 22a.

In the assembled state, the heating units 12a and the functional board 14a are electrically conductively connected to each other. The heating units 12a are connected to the functional plate 14a in an electrically conductive manner through a connection plate 16a. The cooking field device 10a has the connection plate 16a.

In the assembled state, the connection plate 16a is arranged essentially parallel to the functional plate 14a. The main extension plane of the connection plate 16a is arranged in the assembled state essentially parallel to the main extension plane of the functional plate 14a. The main extension plane of the connection plate 16a is arranged in the assembled state essentially parallel to the main extension plane of one, in particular, of any of the heating units 12a.

In the assembled state, the connection plate 16a is arranged at a distance with respect to each of the heating units 12a and has a minimum distance 24a of approximately 15 mm with respect to each of the heating units 12a (see Figures 13 and 16). The distance 24a of the connection plate 16a with respect to the heating units 12a is defined by a support unit 26a.

The cooking field device 10a has the support unit 26a (see Figures 2 to 13 and 16). In the assembled state, the support unit 26a supports the heating units 12a on the connection plate 16a. In this exemplary embodiment, the unit Support 26a has two support elements 48a for each heating unit 12a, which support the corresponding heating unit 12a on the connection plate 16a. However, in Figures 2, 3 and 13, only one of the support elements 48a is shown for each heating unit 12a for the sake of clarity. In the following, only one of the support elements 48a is described.

For each heating unit 12a, the support unit 26a has two spring elements 28a. Next, only one of the spring elements 28a is described. In the assembled state, the spring element 28a presses the heating unit 12a against the cooktop plate 30a. The spring element 28a and the support element 48a are made in one piece.

The heating unit 12a is connected to the connection plate 16a in an electrically conductive manner through the support unit 26a. The spring element 28a connects the heating unit 12a with the connection plate 16a in an electrically conductive manner. In this exemplary embodiment, the spring element 28a is made of an electrically conductive material.

For each spring element 28a, the support unit 26a has four gear elements 32a (see Figures 4 to 12). Hereinafter, only one of the gear elements 32a is described. The gear element 32a and the spring element 28a are made in one piece. In the assembled state, the gear element 32a partially engages the connecting bar 16a and partially traverses it.

For each gear element 32a of the support unit 26a, the connecting plate 16a has a gear recess (not shown). In the assembled state, the gear element 32a partially meshes in the gear shell.

The cooktop device 10a has a connection unit 52a. In the assembled state, the connection unit 52a connects the heating units 12a and the connection strip 16a together in an electrically conductive manner. In this exemplary embodiment, the connection unit 52a is made in one piece with the support unit 26a.

In a method for mounting the cooktop device 10a, the heating units 12a are electrically conductively connected to the functional strip 14a through the common connection strip 16a. The heating units 12a are connected to the support unit 26a in an electrically conductive manner.

The heating units 12a, with the support unit 26a attached to them, are positioned through the connection plate 16a and are moved in the direction of the connection plate 16a in the mounting direction 50a (see Figure 2)

The heating units 12a are supported on the connection plate 16a through the support unit 26a (see figure 3). Through the support unit 26a, the heating units 12a are connected to the connection plate 16a in an electrically conductive manner. The gear element 32a is inserted into the gear hole of the connecting plate 16a. The support unit 26a, in particular the spring element 28a and, advantageously, the gear element 32a, is brought into electrical contact with the connection plate 16a through an indirect solder joint.

For each spring element 28a, the support unit 26a has four contacting elements 34a. Next, only one of the contacting elements 34a is described. The contacting element 34a and the spring element 28a are made in one piece. The contacting element 34a and the gear element 32a are made in one piece. In the assembled state, the contacting element 34a is tinned with the connecting plate 16a.

In the assembled state, the connecting strip 16a is connected to the functional strip 14a in an electrically conductive manner. The cooktop device 10a has another connection unit 54a, which connects the connection plate 16a with the functional plate 14a in an electrically conductive manner.

The other connection unit 54a is partially made in one piece with the connection bar 16a and is partially made in one piece with the functional bar 14a. In the assembled state, the other connection unit 54a could electrically conductively connect the connection board 16a and the functional board 14a to each other, for example via an electrical plug connection.

The cooking field device 10a has a shielding element 56a (see FIG. 17). In the assembled state, the shielding element 56a is arranged between the heating units 12a and the functional plate 14a and between the connection plate 16a and the functional plate 14a. In an operating state, the shielding element 56a shields the functional plate 14a from the heating units 12a.

The shielding element 56a has at least one connecting recess (not shown). In the assembled state, the other connecting unit 54a passes through the connecting recess.

The shielding element 56a could be fixed, for example, to a housing unit (not shown) of the cooktop device 10a. The housing unit could be, for example, an outer housing unit, in particular an outer housing unit of the cooking range, and form at least a part of the outer housing of the cooking range.

The spring element 28a is made in one piece. In the procedure for assembling the cooktop device 10a, the spring element 28a is preassembled. The spring element 28a is bent several times. When viewed in a side view, the spring element 28a has a partial area 58a that is made in the shape of an "S" and a partial area 60a that is made in a rectangular shape.

In this exemplary embodiment, the gear element 32a is arranged adjacent to the rectangular partial area 60a of the spring element 28a. In an alternative embodiment, the gear element 32a could be arranged adjacent to the "S" -shaped part area 58a of the spring element 28a (not shown).

In the procedure for mounting the cooktop device 10a, the spring element 28a is preassembled by being bent about various axes (see Figures 4 to 10). The axes around which the base body 62a of the spring element 28a bends are oriented essentially perpendicular to the direction of longitudinal extension 64a of the base body 62a. By bending the spring element 28a, the "S" -shaped partial area 58a of the spring element 28a and the rectangular partial area 60a of the spring element 28a are formed and / or produced.

Before the spring element 28a is bent, it is cut to size and / or stamped from a raw material. The raw material is a veneer.

The support unit 26a has at least one other contacting element 66a. In this exemplary embodiment, the support unit 26a has for each spring element 28a two of the other contacting elements 66a (see FIGS. 4 to 12). Only one of the other contacting elements 66a is described below. The other contacting element 66a and the spring element 28a are made in one piece. The other contact element 66a and the gear element 32a are made in one piece. In an operating state, the spring element 28a is brought into electrical contact with the heating unit 12a through the other contacting element 66a. The other contacting element 66a is provided to contact the heating unit 12a, in particular with at least one line induction heating element 68a of heating unit 12a (see FIGS. 11 and 12).

The other contacting element 66a partially defines a housing space 70a. The housing space 70a is provided to house at least a part of the induction heating line 68a of the heating unit 12a, specifically, a non-insulated part of the induction heating line 68a of the heating unit 12a ( see figures 11 and 12). In the process, the contacting element 34a is bent, in particular, crimped, and thus the electrically conductive contact is established between the other contacting element 66a and the induction heating line 68a.

In Figures 17 and 18, two other embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the exemplary embodiments, where, in relation to components, characteristics and functions that remain the same, reference can be made to the description of the exemplary embodiment of Figures 1 to 16. For differentiation of the embodiments, the letter "a" of the reference symbols of the embodiment of FIGS. 1 to 16 has been replaced by the letters "b" and "c" in the reference symbols of the embodiments of Figures 17 and 18. In relation to components indicated in the same way, in particular, in terms of components with the same reference symbols, reference can also be made basically to the drawings and / or the description of the embodiment of Figures 1 to 16.

Figure 17 shows an alternative cooking range device 10b with a support unit 26b, which has a spring element 28b. Spring element 28b has no gear elements. The support unit 26b, in particular, the spring element 28b of the support unit 26b, is electrically conductively connected to a connecting strip 16b by contacting SMD.

Fig. 18 shows an alternative cooking range device 10c with a support unit 26c, which has four spring elements 28c for each heating unit 12c. In the following, only one of the spring elements 28c is described. In the assembled state, the spring element 28c connects the heating units 12c with a connection plate 16c in an electrically conductive manner. In this exemplary embodiment, the spring element 28c is designed as a helical spring.

Reference symbols

Cooking field device

Heating unit

Functional plate

Connection plate

Induction heating element Sensor element

Power supply unit

Distance

Support unit

Spring element

Cooktop plate

Gear element

Contact element

Cooking range

User interface

Control unit

Ferrite element

Heating unit support element Cooling unit

Support element

Mounting direction

Connection unit

Other connection unit

Shielding element

Partial area

Partial area

Base body

Direction of longitudinal extension

Another element of contact

Induction heating line

Accommodation space

Claims (13)

1. Cooktop device, in particular induction cooktop device, with at least four heating units (12a-c) and with at least one functional plate (14a-c) that has a main electrical function and / or electronics, characterized by at least one connection board (16a-c) that has at least one printed circuit board through which the heating units (12ac) are electrically conductively connected to the functional board (14a -c) and at least one support unit (26a-c), which supports at least one of the heating units (12a-c) on the connection plate (16a-c). Cooker field device according to claim 1, characterized in that at least one of the heating units (12a-c) has at least one induction heating element (18a-c). Cooking field device according to one of the preceding claims, characterized in that at least one of the heating units (12a-c) has at least one sensor element (20a-c). Cooking field device according to one of the claims stated above, characterized in that the functional plate (14a-c) has at least one current supply unit (22a-c) for supplying energy to at least one of the heating units. warm-up (12a-c). Cooker field device according to one of the preceding claims, characterized in that the connection plate (16a-c) is arranged approximately or exactly parallel to the functional plate (14a-c). Cooking field device according to one of the preceding claims, characterized in that the connection plate (16a-c) has a minimum distance (24a-c) of at least 1 mm with respect to at least one of the heating units. warm-up (12a-c). 7. Cooking field device according to one of the preceding claims, characterized in that the connection plate (16a-c) has a minimum distance (24a-c) of at most 35 mm with respect to at least one of the heating units. warm-up (12a-c). Cooking field device according to claim 7, characterized in that the support unit (26a-c) has at least one spring element (28a-c), which is intended to press the heating unit (12a-c). ) against a cooktop plate (30a-c). Cooktop device according to claim 7, characterized in that the heating unit (12a-c) is electrically conductively connected to the connection plate (16a-c) via the support unit (26a-c). ). Cooking field device according to one of claims 7 or 8, characterized in that the support unit (26a-c) has at least one gear element (32a-c), which engages at least partially in the connection (16a-c). Cooking field device according to one of claims 7 to 10, characterized in that the support unit (26a-c) has at least one contacting element (34a-c), which is tin-plated with the connection (16ac). 12. Cooking range, in particular induction cooking range, with at least one cooking range device (10a-c) according to one of the claims stated above. Method for assembling a cooktop device (10a-c) according to one of claims 1 to 11, with at least four heating units (12a-c), characterized in that the heating units (12a-c) ) are electrically conductively connected to at least one functional strip (14a-c) through at least one common connection strip (16a-c).