CN215914214U - Knob device with display function and cooking appliance comprising same - Google Patents

Abstract

The utility model provides a knob device with a display function, which comprises a display assembly, a display assembly bracket, a knob and a knob base, wherein the display assembly comprises a display screen and a conductive flat cable, and the knob base comprises a circuit board, an encoder, a display assembly fixing layer and a knob rotating layer. The display assembly support is fixed on the inner peripheral surface of the display assembly fixing layer, the display screen is arranged on the upper surface of the display assembly support and is in signal connection with the circuit board through a conductive flat cable.

Description

Knob device with display function and cooking appliance comprising same

Technical Field

The utility model relates to the field of cooking appliances for kitchens, in particular to a knob device with a display function and a cooking appliance comprising the knob device.

Background

With the improvement of living standard and living condition of people, the kitchen cooking appliances are rapidly applied and developed. Ovens, microwave ovens and air fryers are important products in cooking appliances for kitchen, and cooking work of food materials by users is greatly facilitated. Meanwhile, with the development of electronic technology in recent years, in order to meet various requirements of users, the functions of the kitchen appliance are more and more drawn close to the automation and electrification directions, and the operation efficiency of the users in the process of using the cooking appliance is greatly improved by integrating electronic elements in the cooking appliance.

As the functions of cooking appliances become more and more abundant, manufacturers need to provide more operation and control functions for cooking appliances in order to meet different control requirements in various types of cooking. In order to facilitate the user to operate the cooking appliance, manufacturers usually set a display screen on the cooking appliance, so that the user can operate the cooking appliance more intuitively and conveniently. In some prior art, manufacturers may choose to use a touch screen integrated with a touch function, but in actual use, if a user touches water on a hand or on a screen surface when operating the touch screen, a phenomenon of misoperation may frequently occur, which affects user experience.

In order to solve the above problems, there are electric cooking appliances on the market that are equipped with both a display screen and control devices such as buttons and knobs. The user can select the contents in the menu displayed by the cooking appliance by using the knob and the button, the information related to cooking operation can be visually obtained by using the display screen, and the phenomenon of mistaken touch of the touch screen can be avoided, so that the interaction efficiency of the user and the kitchen appliance is improved. Nevertheless, there are some problems to be improved with existing control and display devices of this type. On the one hand, in the production process, the arrangement of display screen and control button can occupy a large amount of surface areas of cooking appliance, is unfavorable for miniaturized design, influences the visual aesthetic effect of cooking appliance product, has also increased manufacturing cost simultaneously. On the other hand, the arrangement of the screen and the plurality of button keys may reduce the reliability of the cooking appliance during use by the user. Even more disadvantageously, the design of positioning the screen and cooperating with the knobs or buttons results in the user having to spend more time learning to use the kitchen appliance, thereby affecting the user experience of the product.

Therefore, it is necessary to provide a knob device with a reasonable design for a cooking appliance, which can ensure the miniaturization of the design and improve the user experience while realizing the display and operation functions of the existing cooking appliance.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problems, according to a first aspect of the present invention, there is provided a knob device having a display function, comprising:

the display assembly comprises a display screen and a conductive flat cable;

a display assembly support;

a knob; and

the rotary knob base comprises a circuit board, a coder, a display component fixing layer and a rotary knob rotating layer; wherein the content of the first and second substances,

the encoder is arranged on the upper surface of the circuit board and is in signal connection with the circuit board,

the display component fixing layer is arranged on the upper surface of the encoder and is fixedly connected with the encoder,

the knob rotating layer is sleeved on the peripheral surface of the display component fixing layer and is rotatably connected with the display component fixing layer,

the knob is sleeved on the peripheral surface of the knob rotating layer and is fixedly connected with the knob rotating layer,

the display component bracket is sleeved on the inner peripheral surface of the display component fixing layer and is fixedly connected with the display component fixing layer,

the display screen is arranged on the upper surface of the display component support and is in signal connection with the electric flat cable, and the electric flat cable is in signal connection with the circuit board.

According to a preferred embodiment of the present invention, the encoder further comprises an encoder electrode, and the encoder is in signal connection with the circuit board through the encoder electrode.

According to a preferred embodiment of the present invention, the encoder can generate a corresponding signal according to the rotation angle of the knob and transmit the signal to the circuit board.

According to a preferred embodiment of the present invention, the display module bracket is provided with a vertically through display module through hole in a longitudinal height direction, the lower surface of the circuit board is provided with a conductive flat cable interface, and the circuit board is further provided with a longitudinally through conductive flat cable groove.

According to a preferred embodiment of the present invention, when the display module is fixedly connected to the display module bracket, the flat cable passes downward through the display module through hole and the flat cable groove, and is fixedly connected to the flat cable interface, so that the display screen is in signal connection with the circuit board.

According to a preferred embodiment of the present invention, a display module support boss is further disposed at a central position of a bottom surface of the display module support, the knob base further includes a key, the key is in signal connection with the circuit board, and when the display module support is sleeved on an inner circumferential surface of the display module fixing layer, a lower surface of the display module support boss contacts with an upper surface of the key.

According to a preferred embodiment of the present invention, the electrical knob device further includes a transparent cover, and a plurality of transparent cover fixing posts protruding downward are disposed on a periphery of a lower surface of the transparent cover.

According to a preferred embodiment of the present invention, a plurality of transparent cover fixing post holes corresponding to the transparent cover fixing posts are formed on the periphery of the upper surface of the display module support, and when the transparent cover is fixedly connected to the display module support, the plurality of transparent cover fixing posts are inserted into the corresponding transparent cover fixing post holes.

According to a second aspect of the present invention, there is also provided a cooking appliance comprising the above knob device, and further comprising a temperature control device, the knob device being connected to the temperature control device for controlling the temperature within the steam air oven.

The utility model at least provides the following technical effects:

1. by integrating the display screen and the knob, a single device has both a display function and a control function;

2. the pressing key is arranged in the knob device, so that a user can control the cooking appliance in multiple modes.

Additional features and advantages of the application will be set forth in the description which follows, or may be learned by practice of the application.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter, and not limit the subject matter.

FIG. 1 is a perspective exploded view of a rotary knob device with display function according to the present invention;

FIG. 2 is a sectional view of the knob device having a display function according to the present invention;

fig. 3 is a side view of the knob device with a display function of the present invention.

Description of reference numerals:

1-a transparent cover;

1 a-transparent cover fixing column;

2-a display component;

2 a-a display screen; 2 b-conductive flat cable;

3-display assembly holder;

3 a-transparent cover fixing post hole; 3 b-display assembly through holes; 3 c-display screen fixation groove;

3 e-display assembly support buckle; 3 f-display assembly holder slot; 3 g-display assembly support boss;

4-a knob;

4 a-display assembly fixing seat hole; 4 b-knob buckle; 4 c-knob snap groove;

5-a knob base;

51-a circuit board;

51 a-key; 51 b-conductive bus cable interface; 51 c-conductive bus duct;

52-an encoder;

52 a-display assembly securing layer; 52 b-knob rotation layer; 52 c-display assembly holder snap ribs;

52 d-knob rotation layer slot; 52 e-encoder electrodes.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the utility model, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments should be construed as merely exemplary, and not limiting, unless otherwise specified.

It should be noted that, in the following description of the embodiments, four kinds of directional descriptive words, i.e., "up/up", "down/down", "outside/outside" and "inside/inside", or similar thereto, are used, wherein "up/up" and "down/below" are defined as relative concepts up and down in a direction perpendicular to a cooking appliance panel with reference to the cooking appliance panel on which the knob device is mounted, and may also be understood as relative concepts up and down in a longitudinal height direction with reference to the longitudinal height direction when the knob device is normally used; "inside" is defined as a side of the knob device where the side wall of the part is a starting surface and the side is directed perpendicularly to the inner direction of the part, and "outside" is defined as a side of the knob device where the side wall of the part is a starting surface and the side is directed perpendicularly to the outer direction of the part, and both directions "inside" and "outside" are vector directions, and the angle between the directions is 180 degrees.

Fig. 1 and 2 are a schematic view and a side-view cross-sectional view of each part of a knob device having a display function according to the present invention after being disassembled in a three-dimensional manner, respectively, and fig. 3 is a side view of the knob device. The knob device mainly comprises four parts: display module 2, display module support 3, knob 4 and knob base 5. Wherein, the display component 2 comprises a display screen 2a and a conductive flat cable 2 b; the display component support 3 comprises a transparent cover fixing column hole 3a, a display component through hole 3b, a display screen fixing groove 3c, a display component support buckle 3e, a display component support clamping groove 3f and a display component support boss 3 g; the knob 4 is provided with a display component fixing seat hole 4a, a knob buckle 4b and a knob buckle groove 4 c; the knob base 5 includes a circuit board 51, a key 51a, a flat cable interface 51b, a flat cable groove 51c, an encoder 52, a display module fixing layer 52a, a knob rotating layer 52b, a display module bracket clamping rib 52c, a knob rotating layer clamping groove 52d, and an encoder electrode 52 e.

When the knob device is installed, the circuit board 51 is disposed at the lowest layer in the height direction of the knob device, and the encoder 52 is disposed on the upper surface of the circuit board 51, wherein the encoder 52 and the circuit board 51 are in signal connection through an encoder electrode 52 e. On the upper surface of the encoder 52, a display module fixing layer 52a is provided. In a preferred embodiment, the display element fixing layer 52a is non-rotatable, and thus the display element fixing layer 52a is fixedly connected to the upper surface of the encoder 52. Correspondingly, the knob rotating layer 52b is arranged on the outer peripheral surface of the display component fixing layer 52a, and since the knob rotating layer 52b is used for bearing the knob 4 to perform rotating operation, the knob rotating layer 52b is movably connected with the display component fixing layer 52a, and the inner surface of the knob rotating layer 52b can axially rotate around the outer surface of the display component fixing layer 52 a.

The knob 4 is a component that is directly touched when a user operates the knob device, and the knob 4 is combined with the knob rotating layer 52b in a fixed connection manner and sleeved on the outer peripheral surface of the knob rotating layer 52 b. When the user rotates the knob 4, the knob 4 will drive the knob rotating layer 52b to rotate circularly relative to the synchronously rotating display component fixing layer 52 a. In a preferred embodiment, as shown in fig. 1, the knob 4 and the knob rotating layer 52b are connected to each other by a snap connection. A plurality of rotary layer slots 52d are formed on the outer peripheral surface of the lower end of the rotary layer 52b, and a plurality of rotary button fasteners 4b are uniformly formed on the outer peripheral surface of the lower end of the rotary button 4, i.e., the outer surface of the lower end of the rotary button 4 along the circumference of the side wall. It should be noted that in the preferred embodiment, the number of the plurality of knob locks 4b is 4, and therefore the number of the plurality of rotary layer slots 52d corresponding thereto is also 4. And preferably, in order to ensure that the knob buckles 4b have elasticity, the two sides of each knob buckle 4b are provided with hollow knob buckle grooves 4c, so that the hardware is not easily damaged by the assembly of the knob 4 relative to the knob rotating layer 52b or the disassembly work of the future maintenance. After the rotary layer slots 52d are in one-to-one correspondence with the knob fasteners 4b and are engaged, the knob 4 and the knob rotary layer 52b are fixedly engaged to form a non-movable whole.

Referring to fig. 1 and 2, the display assembly 2 is connected to the knob device through the display assembly bracket 3. In the preferred embodiment, the display module support 3 is "T" shaped and has display module through holes 3b formed through the entire display module support 3 on the inner side. The display module support 3 is fitted over the inner peripheral surface of the display module fixing layer 52a, and is fixedly connected to the display module fixing layer 52 a. In a preferred embodiment, as shown in fig. 1, the display assembly bracket and the display assembly fixing layer 52a are also connected to each other by means of a snap connection. A plurality of display module holder clips 3e are provided on the outer peripheral surface of the lower end of the display module holder 3, and a plurality of display module holder clips 52c are provided uniformly on the inner surface of the lower end of the display module fixing layer 52a, that is, the inner surface of the lower end of the display module fixing layer 52a along the circumference of the sidewall.

It should be noted that in the preferred embodiment, the number of the plurality of display assembly bracket catches 3e is 4, and therefore the number of the plurality of display assembly bracket catches 52c corresponding thereto is also 4. Moreover, in order to ensure that the display module bracket buckles 3e have elasticity, hollow display module bracket clamping grooves 3f are formed in two sides of each display module bracket buckle 3e, so that the display module bracket 3 is not easy to damage hardware in the assembling process of the display module fixing layer 52a or the disassembling process of the later maintenance. After the display component bracket clamping ribs 52c are correspondingly buckled with the display component buckles 3e one by one, the display component bracket 3 and the display component fixing layer 52a are fixedly combined into a whole which can not move mutually.

As shown in fig. 1, a display module 2 is disposed above the display module support 3, wherein the display screen 2a is disposed on the upper surface of the display module support 3 and is in signal connection with the flat cable 2b, and the flat cable 2b is in signal connection with the circuit board 51. In a preferred embodiment, in order to ensure that the display screen does not shake after being assembled, the upper surface of the display module support 3 is provided with a plurality of display screen fixing grooves 3c, and the display screen 2a is fixedly installed in the display screen fixing grooves 3c in an embedded manner. The conductive flat cable 2b is fixedly connected with the display screen 2a and is in signal connection with the display screen. In a preferred embodiment, as shown in fig. 3, in order to connect the flat cable 2b to the circuit board 51, the display module bracket 3 is provided with a display module through hole 3b penetrating up and down in the longitudinal height direction, and the circuit board 51 is further provided with a flat cable slot 51c penetrating longitudinally, and the lower surface of the circuit board 51 is provided with a flat cable interface 51 b. During assembly, when the display component 2 is fixedly connected with the display component support, the flat cable 2b passes through the display component through hole 3b and the flat cable groove 51c downwards and is fixedly connected with the flat cable interface 51b, so that the display screen 2a is in signal connection with the circuit board 51.

As shown in fig. 1, 2 and 3, the transparent cover 1 is further disposed on the upper surface of the display component 2, the transparent cover 1 is disposed on the topmost layer in the height direction of the knob device, and the transparent cover 1 serves as protection hardware of the display screen, so that the display component 2 and various electronic circuit systems below the display component 2 can be protected while the display content on the display screen 2a can be clearly seen by a user due to good light transmission, the display component is prevented from being corroded by water, oil smoke, dirt and other contaminants in a kitchen, and durability of the knob device in the daily use process is ensured. In order to ensure the firmness of the installation of the transparent cover 1, a plurality of transparent cover fixing columns 1a protruding downwards are arranged on the periphery of the lower surface of the transparent cover 1, and correspondingly, a plurality of transparent cover fixing column holes 3a corresponding to the positions of the transparent cover fixing columns 1a are also arranged on the periphery of the upper surface of the display component support 3. When the transparent cover is fixedly connected with the display component bracket, the transparent cover fixing columns 1a are inserted into the corresponding transparent cover fixing column holes 3 a.

In order to make the knob device have a knob function and a key function, as shown in fig. 1 and 2, a display module holder boss 3g is further provided at a central position of a bottom surface of the display module holder 3, and the key 51a corresponding to the display module holder boss 3g is also provided on the knob base 5 correspondingly. In order to enable the pressure transmitted to the key 51a after the display module holder 3 is pressed to be read by the circuit board 51, the key 51a is in signal connection with the circuit board 51. In a preferred embodiment, as shown in fig. 2, when the display module support 3 is sleeved on the inner peripheral surface of the display module fixing layer 52a, the lower surface of the display module support boss 3g contacts with the upper surface of the key 51a, so that when a user presses the transparent cover 1, the downward pressure is transmitted to the display module support 3 through the transparent cover 1, and then transmitted to the key 51a by the display support 3, and the key 51a is pressed and then transmits a signal to the circuit board 51, thereby completing the transmission of the pressing operation command of the user.

In a preferred embodiment, the height of the display assembly bracket 3 is different from the height of the knob 4 when the knob device is completely assembled. Specifically, when the display module bracket 3 is sleeved in the display module fixing seat hole 4a of the knob 4, the top plane of the display module bracket 3 should be lower than the plane height of the opening at the upper end of the knob 4. As can be seen in the side view of fig. 3, the upper end of the display assembly bracket 3 does not protrude above the upper end of the knob 4 when the assembly is complete, so the upper end of the display assembly bracket 3 will not be visible in the side view of the preferred embodiment.

In a preferred embodiment, when the user rotates the knob 4 for adjustment, since the knob rotating layer 52b above the encoder 52 can make a 360-degree circumferential rotation around the display component fixing layer 52a, the encoder 52 can generate a corresponding signal according to the angle of the circumferential rotation made by the knob 4 and transmit the signal to the circuit board 51, thereby implementing the adjustment function of the cooking appliance. During the use of the knob device by the user, the encoder 52 is used in conjunction with the circuit board 51, since the physical rotation mechanism of the knob needs to be converted into information that can be read by the control system. The encoder 52, among other things, compiles signals or data and converts the signals into devices in the form of signals that may be used for communication, transmission, and storage. When the knob 4 is turned, the encoder converts the angular displacement generated by the knob 4 into an electrical signal (such as a code wheel). In the preferred embodiment, the encoder can be either contact or non-contact, and the operation principle of the encoder 52 can be either incremental or absolute. The cooking appliance may in a preferred embodiment be a steam-air oven and in that the steam-air oven further comprises a temperature control means, said knob means being in signal connection with said temperature control means when the steam-air oven is used by a user, the user being able to control the temperature inside said steam-air oven by means of the knob means.

Therefore, the knob device with the display function of the utility model can enable a user to operate the cooking appliance through the knob 4 and simultaneously acquire visual information related to cooking through the display component 2 by integrating the display component 2 and the knob 4 in the knob device, and can enable the operation process of the user to be more intuitive and convenient while reducing the external dimension of the corresponding control mechanism.

According to the knob device with the display function, the button 51a is arranged in the knob device and matched with the display component support boss 3g, so that a user can select contents in a menu displayed by the cooking appliance by using the knob device, and meanwhile, the button can make different types of logic commands (such as determining, canceling and the like), the interaction efficiency of the user and the kitchen appliance is improved, the operation mode is simplified, the use experience of the user is further improved, and the overall dimension of a corresponding control mechanism is simultaneously changed and reduced.

So far, some specific embodiments of the present invention have been described in detail by way of examples, but it should be understood by those skilled in the art that the above examples are only for illustrative purposes and are not intended to limit the scope of the present invention. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. A knob device having a display function, comprising:

the display assembly (2), the said display assembly (2) includes the display screen (2a) and electrically conducts the winding displacement (2 b);

a display assembly support (3);

a knob (4); and

the rotary knob comprises a rotary knob base (5), wherein the rotary knob base (5) comprises a circuit board (51), an encoder (52), a display component fixing layer (52a) and a rotary knob rotating layer (52 b); wherein the content of the first and second substances,

the encoder (52) is arranged on the upper surface of the circuit board (51) and is in signal connection with the circuit board (51),

the display component fixing layer (52a) is arranged on the upper surface of the encoder (52) and is fixedly connected with the encoder (52),

the knob rotating layer (52b) is sleeved on the outer peripheral surface of the display component fixing layer (52a) and is rotatably connected relative to the display component fixing layer (52a),

the knob (4) is sleeved on the peripheral surface of the knob rotating layer (52b) and is fixedly connected with the knob rotating layer (52b),

the display component bracket (3) is sleeved on the inner peripheral surface of the display component fixing layer (52a) and is fixedly connected with the display component fixing layer (52a),

the display screen (2a) is arranged on the upper surface of the display component support (3) and is in signal connection with the electric flat cable (2b), and the electric flat cable (2b) is in signal connection with the circuit board (51).

2. The appliance knob device according to claim 1, wherein the encoder (52) further comprises an encoder electrode (52e), the encoder (52) being in signal connection with the circuit board (51) through the encoder electrode (52 e).

3. The appliance knob device according to claim 2, wherein the encoder (52) generates a corresponding signal according to the angle of rotation of the knob (4) and transmits the signal to the circuit board (51).

4. The electrical knob device according to claim 3, wherein the display assembly bracket (3) is provided with a display assembly through hole (3b) which is vertically through in the longitudinal height direction, the lower surface of the circuit board (51) is provided with a conductive bus bar interface (51b) and the circuit board is further provided with a conductive bus bar slot (51c) which is vertically through.

5. The electrical knob device according to claim 4, wherein when the display module (2) is fixedly connected to the display module bracket, the flat cable (2b) passes downward through the display module through hole (3b) and the flat cable groove (51c) and is fixedly connected to the flat cable interface (51b), so that the display screen (2a) is in signal connection with the circuit board (51).

6. The electrical knob device according to claim 5, wherein a display assembly holder boss (3g) is further provided at a central position of a bottom surface of the display assembly holder (3), the knob base (5) further comprises a key (51a), the key (51a) is in signal connection with the circuit board (51), and when the display assembly holder (3) is sleeved on an inner circumferential surface of the display assembly fixing layer (52a), a lower surface of the display assembly holder boss (3g) is in contact with an upper surface of the key (51 a).

7. The electrical knob device according to claim 6, further comprising a transparent cover (1), wherein a plurality of transparent cover fixing posts (1a) protruding downwards are arranged on the periphery of the lower surface of the transparent cover (1).

8. The electrical knob device according to claim 7, wherein a plurality of transparent cover fixing post holes (3a) corresponding to the transparent cover fixing posts (1a) are formed on the periphery of the upper surface of the display assembly bracket (3), and when the transparent cover is fixedly connected with the display assembly bracket, the plurality of transparent cover fixing posts (1a) are inserted into the corresponding transparent cover fixing post holes (3 a).

9. Cooking appliance, characterized in that it comprises a knob device according to any one of claims 1 to 8.

10. The cooking appliance of claim 9, wherein the cooking appliance is a steam air oven, the steam air oven further comprising a temperature control device, the knob device being connected to the temperature control device to control the temperature within the steam air oven.

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