CN105333459B

CN105333459B - Operating device of stove and stove

Info

Publication number: CN105333459B
Application number: CN201410369344.XA
Authority: CN
Inventors: Z·卡法利; 吴金花; 陶家斌; 刘云
Original assignee: Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2014-07-30
Filing date: 2014-07-30
Publication date: 2020-06-16
Anticipated expiration: 2034-07-30
Also published as: EP2980486A1; CN111043630A; CN105333459A

Abstract

The invention relates to an operating device of a cooker and the cooker. The operating device is provided with at least two gears and comprises a panel, a rotating shaft and a knob; the panel has two at least printing opacity gear marks, the pivot is at least partly located the panel is inboard, the knob is at least partly located the panel outside for drive the pivot rotates. The operating device also comprises a connecting piece which is positioned at the inner side of the panel, is connected to the rotating shaft and rotates under the driving of the rotating shaft when the rotating shaft rotates; the connecting piece is provided with a luminous piece, and when the knob is rotated to one of the gears of the operating device, one gear mark on the panel is illuminated by the light of the luminous piece. Therefore, the user can intuitively and accurately obtain the power/firepower information of the cooker.

Description

Operating device of stove and stove

[ technical field ] A method for producing a semiconductor device

The invention relates to an operating device of a cooker, in particular to an operating device of a cooker with a luminous element and a gear mark and the cooker with the operating device.

[ background of the invention ]

The luminous knob on the existing kitchen range generally only plays a role of decoration, or simply displays the opening and closing state of the kitchen range by utilizing the on and off of the light. The information transmitted to the user by the luminous knob is limited, and the current firepower/power state of the cooker cannot be displayed by the bright light. Some knobs can emit light with different colors so as to display different firepower/power of the cooker. However, since open fire is generated when the gas range is operated, the burning flame causes a certain interference to the color of the user's judgment knob, and the user cannot accurately recognize the current fire/power. Furthermore, it is worth mentioning that the skilled person has developed a deep recognition that the light sources of the illuminable knob are all fixedly arranged and do not rotate with the rotation of the knob, since the wiring connection of the rotating light sources is a problem.

Unless otherwise supported by sufficient evidence, the prior art described herein is not meant to be an admission that such prior art is widely known to those of ordinary skill in the art to which the invention pertains prior to the filing date of this application.

[ summary of the invention ]

The present invention is directed to solving at least one of the above-mentioned problems, and to providing an operating device of a cooking appliance that more directly and accurately displays the current relative magnitude of fire/power of the cooking appliance, and a cooking appliance having the operating device.

In order to achieve the technical purpose, the invention provides the following technical scheme: an operating device of a cooker is provided with at least two gears and comprises a panel, a rotating shaft and a knob; the panel has two at least printing opacity gear marks, the pivot is at least partly located the panel is inboard, the knob is at least partly located the panel outside for drive the pivot rotates. The operating device also comprises a connecting piece which is positioned at the inner side of the panel, is connected to the rotating shaft and rotates under the driving of the rotating shaft when the rotating shaft rotates; the connecting piece is provided with a luminous piece, and when the knob is rotated to one of the gears of the operating device, one gear mark on the panel is illuminated by the light of the luminous piece. The illuminated gear mark correspondingly displays the current gear of the operating device, so that a user can intuitively and accurately obtain the power/firepower information of the cooker. Even under the condition of dim kitchen light, the luminous gear mark can be clearly seen when the user stands, and the user does not need to frequently stoop down to check the power/fire of the cooker. The operating device comprises a panel, which can be understood as a panel for enclosing some parts of the operating device inside the hob, so as to protect these parts from contamination by dirt and soup. In one embodiment, the panel may be a cooktop panel. The invention has simple structure, some technical characteristics can be naturally fused on the structure of the existing cooker, for example, the transparent gear mark can be arranged on the cooker panel, the manufacturing cost is low, and the limitation of the number of gears is small. Moreover, the invention overcomes the technical bias, the light-emitting piece can rotate along with the rotating shaft, and the light of the light-emitting piece directly and rotatably irradiates the transparent gear mark on the panel, so that an element which enables the light to selectively penetrate or irradiate does not need to be arranged between the light-emitting piece and the panel. It should be noted that in the present invention, "outside the panel" is understood to mean on the side of the panel facing the outside, which is generally visible to the user when the cooking appliance is in use. By "inside said panel" is understood a side of the panel facing towards the inside of the hob, which side is not normally visible to a user in a state of use of the hob. The gear position markers can be numbers such as 0-9, symbols or patterns such as gas flames of different sizes, and the like. The shift mark may be formed by printing, coating, laminating, or etching.

In a possible embodiment of the present invention, the connecting member includes a light-transmitting portion through which the light of the light-emitting member is uniformly emitted toward the panel. The light emitted from different angles of the light-emitting component is concentrated on the front surface of the light-transmitting part, so that the brightness and the uniformity of the gear mark are improved.

In a possible embodiment of the present invention, the light-transmitting portion includes a light-emitting surface facing the panel, and a distance d between the light-emitting surface and the panel is in a range of 0.5mm or more and 2mm or less. In this way, the light of the light-emitting member can be gathered at the corresponding position on the panel, so that the required position is ensured to have enough brightness, and the gear position mark adjacent to the illuminated gear position mark can not be illuminated to a certain extent.

In order to obtain more ideal light and enable the light of the light-emitting member to be transmitted more uniformly, in a possible embodiment of the present invention, the light-emitting surface is a frosted surface.

In order to make the light transmission part have good light transmission performance and light diffusion performance, in one possible embodiment of the invention, the light transmission part is made of an acrylic material, or the light transmission part is made of a polycarbonate material added with a light diffusion agent.

In one possible embodiment of the present invention, the connecting member is a disc. The mold is simple and convenient to manufacture.

In order to better protect the illuminating element and prevent the illuminating element from being damaged by soup, water vapor or even oil stain entering from the opening on the panel, in a possible embodiment of the invention, the connecting element comprises a groove for accommodating the illuminating element, and the light-transmitting part is positioned at the top of the groove.

In a possible embodiment of the present invention, the connecting member is made of a light-impermeable material, and the light-permeable portion is assembled to the top of the groove; or the light-transmitting part is formed by integrally molding the connecting piece, the connecting piece is made of a light-transmitting material, and the surface of the connecting piece facing the panel except the top of the groove is coated with a light-proof material or pasted with a light-proof film. The light transmission part is formed by integrally molding the connecting piece, and the trouble of manually assembling the light transmission part is saved.

In a possible embodiment of the present invention, the operating device of the cooking appliance further includes a circuit board for controlling the on/off of the light emitting element, and the light emitting element includes a connecting pin, and the connecting pin rotatably contacts the circuit board when the connecting element rotates. The technical scheme creatively solves the problem of circuit connection and control of the rotating luminous element, and is a great progress compared with the prior art. Moreover, when the luminous element is damaged, one luminous element can be replaced independently, the circuit board does not need to be replaced, and the maintenance cost can be saved.

In a possible embodiment of the present invention, the rotating shaft can move along an axial direction thereof under the driving of the knob, and the connecting pin flexibly contacts the circuit board when the connecting member moves along the axial direction of the rotating shaft. Thereby, a possible solution is provided for the spindle to be moved in its axial direction for performing some functions of the operating device, such as a child lock function.

Based on the main object of the present invention, the invention also provides a hob comprising an operating device of a hob as described above. The gear of the cooker can be visually displayed on the panel, and a user can accurately judge the relative size of firepower/power according to the gear. When the cooker is used, the luminous gear marks are displayed on the panel, and the appearance of the cooker is fashionable.

In one possible embodiment of the present invention, the cooktop includes a cooktop panel, and the panel is the cooktop panel. It can be seen that some of the features of the present invention can naturally be fused to the structure of existing cookers.

In a possible embodiment of the present invention, the cooker is a gas cooker or an electromagnetic cooker.

[ description of the drawings ]

Fig. 1 is a cross-sectional view of an operating device of a hob according to an embodiment of the present invention;

FIG. 2 is a front view of a faceplate of an embodiment of the present invention;

FIG. 3 is an exploded perspective view of a connector and a circuit board according to an embodiment of the invention;

fig. 4 is an effect diagram of an operating device of a cooker according to an embodiment of the present invention in a use state;

fig. 5 and 6 are schematic views of a connector according to another embodiment of the present invention.

Reference numerals:

2-operating the device; 20. 20' -a linker; 21-a panel; 22-a rotating shaft; 23-a knob; 24-a light emitting member; 25. 25' -a light-transmitting portion; 26-a circuit board; a 100-gear mark; 201. 201' -a trough; 203' -side; 210-opening a hole; 240-screw, 241-connecting pin; 250-light emitting surface.

[ detailed description ] embodiments

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

As shown in fig. 1, fig. 1 is a sectional view of an operating device of a cooker according to an embodiment of the present invention. The operation device 2 includes a panel 21, a rotation shaft 22, and a knob 23. The shaft 22 is at least partially located inside the panel 21. The operating device 2 has at least two gears, and the gear of the operating device 2 can be adjusted by rotating the rotating shaft 21. The knob 23 is at least partially located outside the panel 21 and is used for driving the rotating shaft 22 to rotate. The panel 21 has at least two light-transmissive position indicators 100, as shown in fig. 2, and fig. 2 is a front view of the panel according to an embodiment of the present invention. The gear position indicia 100 are the numbers "0", "1", "2" … … "9". The numbers on the panel 21 are transparent and the other parts are opaque, and may for example be coated with a black material or be provided with a black film. Wherein "0" indicates the off state, "1" indicates the first gear, "2" indicates the second gear, and … … "9" indicates the ninth gear. The panel 21 has an opening 210 for the shaft 22 to pass through, and the position indication mark 100 is disposed around the opening 210. When the operating device 2 is assembled, the gear position markings 100 are arranged exactly around the rotary knob 23.

In addition, the operating device 2 further includes a disk-shaped connecting member 20 located inside the panel 21, and the connecting member 20 is connected to the rotating shaft 22 and is driven by the rotating shaft 22 to rotate when the rotating shaft 22 rotates. Referring to fig. 3, fig. 3 is an exploded perspective view of a connector and a circuit board according to an embodiment of the invention. The connector 20 includes a groove 201, and a light-transmitting portion 25 for optical diffusion is provided on the top of the groove 201. A light emitting member 24 formed of an LED is disposed in the groove 201 and is fixedly coupled to the connection member 20 by a screw 240. The light of the light emitting member 24 is emitted toward the panel 21 through the light transmitting portion 25. The light transmission part 25 is made of polycarbonate material added with light diffusion agent and is provided with a light emergent surface 250 facing the panel 21, and the distance d between the light emergent surface 250 and the panel 21 is within the range of 0.5mm and less than or equal to d and less than or equal to 2 mm. In order to make the light emitted from the light-emitting element 24 to the panel 21 have uniform brightness, the light-emitting surface 250 is a frosted surface.

Referring to fig. 4, fig. 4 is an effect diagram of an operating device of a cooker in a use state according to an embodiment of the present invention. The light of the luminous element 24 is changed into a beam of light which is uniformly emitted to the panel 21 after passing through the light-transmitting part 25, when the knob 23 rotates to one of the gears of the operating device 2, such as nine gears, only one gear mark, namely the number '9', on the panel 21 is illuminated by the light of the luminous element 24, the current gear of the operating device is visually displayed, so that a user can accurately judge the relative size of the current firepower/power of the cooker, and the bright gear mark is enough to enable the user to see clearly without bending down under the condition that the kitchen light is dim. Only the lighted gear position markings are shown in fig. 4, the short lines around the numbers indicate that the number "9" is bright, which the user looks like is luminous, while the remaining unlighted gear position markings are highly inconspicuous in the use state, which fig. 4 does not show on the panel.

The connector 20 of the present embodiment is made of a material that is opaque to light, such as a generally opaque plastic material, and is inexpensive. The light-transmitting portion 25 is assembled to the top of the groove. Referring to fig. 5 and 6, fig. 5 and 6 are schematic views of a connecting member according to another embodiment of the invention. In another embodiment of the present invention, the light-transmitting portion 25 'is formed by integrally molding the connector 20'. The connector 20 ' is made of a light-transmitting material, and the surface of the connector 20 ' facing the panel 21, except for the top of the groove 201 ', is coated with a light-impermeable material or coated with a light-impermeable film. Further, in order to better prevent the light of the light emitting element 24 from leaking out and causing light to shine on the panel where the light is not needed, the side 203 'of the connecting element 20' adjacent to the surface facing the panel 21 is also opaque, for example, coated with an opaque material or coated with an opaque film.

Referring to fig. 3, the operating device 2 further includes a circuit board 26 for controlling the light-emitting element 24 to turn on or off, and the circuit board 26 is fixed relative to the rotating shaft 22, i.e. when the rotating shaft 22 rotates, the circuit board 26 is stationary. The light emitting element 24 includes two connecting legs 241 in the shape of letter "J", and the connecting legs 241 rotatably contact the circuit board 26 when the connecting element 20 rotates, so as to electrically connect and control the light emitting element 24. The control device 2 of the present embodiment can rotate the rotation shaft 22 only when the user presses the knob 23 downward, and has a child lock function. The connecting leg 241 in the shape of letter "J" flexibly contacts the circuit board 26 when the connecting member 20 moves along the axial direction of the rotating shaft 22, so that the light emitting member 24 can still work normally during the movement of the rotating shaft 22 along the axial direction.

The invention also provides a hob comprising an operating device 2 of a hob as described above. The hob may for example be a gas range or an electromagnetic hob. The stove comprises a stove panel and a gas valve positioned on the inner side of the stove panel, wherein the gas valve comprises a valve rod for controlling the on-off and the flow of gas, in one embodiment, the panel is the stove panel, and the rotating shaft is the valve rod. It can be seen that the application of the present invention does not interfere with the operation of existing gas valves, without the need to modify the design of existing gas valves.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims

1. Operating device (2) of a hob with at least two gear positions, the operating device (2) comprising

A panel (21), the panel (21) having at least two light-transmissive gear position markings,

a rotating shaft (22) at least partially positioned inside the panel (21),

a knob (23) for driving the rotating shaft (22) to rotate, wherein at least part of the knob (23) is positioned outside the panel (21),

it is characterized in that the preparation method is characterized in that,

the panel also comprises connecting pieces (20, 20') which are positioned at the inner side of the panel (21), connected to the rotating shaft (22) and driven by the rotating shaft (22) to rotate when the rotating shaft (22) rotates;

said coupling member (20, 20') being provided with a light emitting member (24), a gear position mark on said face plate (21) being illuminated by light from said light emitting member (24) when said knob (23) is rotated to one of the gear positions of said operating means (2);

the connector (20, 20 ') comprises a light-transmitting portion (25, 25'), the connector (20, 20 ') comprises a groove (201, 201') for accommodating the luminous member (24), and the light-transmitting portion (25, 25 ') is positioned at the top of the groove (201, 201').

2. Operating device (2) of a hob according to claim 1, characterised in that the light of the luminous element (24) is directed uniformly through the light-transmitting portion (25, 25') towards the panel (21).

3. Operating device (2) of a hob according to claim 2, characterised in that the light-transmitting part (25, 25') comprises a light exit surface (250) facing the panel (21), the distance d between the light exit surface (250) and the panel (21) having a value in the range 0.5mm ≤ d ≤ 2 mm.

4. Operating device (2) of a hob according to claim 3, characterised in that the light exit surface (250) is a frosted surface.

5. Operating device (2) of a hob according to claim 2, characterised in that the light-transmitting part (25, 25 ') is made of an acrylic material or the light-transmitting part (25, 25') is made of a polycarbonate material to which a light diffuser is added.

6. Operating device (2) of a hob according to claim 1, characterised in that the connecting piece (20, 20') is disc-shaped.

7. Operating device (2) of a hob according to claim 1, characterised in that the connecting piece (20, 20 ') is made of a light-tight material, the light-tight part (25, 25 ') being assembled on top of the groove (201, 201 '); alternatively, the light-transmitting portions (25, 25 ') are formed by integrally molding the connectors (20, 20 '), the connectors (20, 20 ') are made of a light-transmitting material, and the surfaces of the connectors (20, 20 ') facing the panel (21) are coated with a light-opaque material or are provided with a light-opaque film, except for the tops of the grooves (201, 201 ').

8. Operating device (2) of a hob according to claim 1, characterized in that it further comprises a circuit board (26) controlling the on-off of the luminous element (24), the luminous element (24) comprising a connection foot (241), the connection foot (241) rotatably contacting the circuit board (26) upon the rotation of the connecting element (20, 20').

9. The hob operating device (2) according to claim 8, characterized in that the shaft (22) is axially movable along the knob (23), and the connecting foot (241) flexibly contacts the circuit board (26) when the connecting piece (20, 20') is axially movable along the shaft (22).

10. Hob, characterized in, that comprises an operating device (2) of a hob according to any one of the claims 1 to 9.

11. Hob according to claim 10, characterized by comprising a hob panel, said panel (21) being said hob panel.

12. The cooktop of claim 10, wherein the cooktop is a gas cooker or an induction cooker.