CN218158853U - Knob mechanism with display function and household appliance - Google Patents

Abstract

The utility model provides a knob mechanism with show function, include: the display device is used for displaying the interactive information; an encoder having a rotating shaft; and a knob for driving the rotation shaft to rotate; the knob is covered on the display device and the encoder, and the knob is provided with a transparent part corresponding to the display device so that a user can obtain the interactive information; the rotation axis of the rotating shaft deviates from the rotation axis of the knob, an external gear is fixedly connected to the rotating shaft, and an internal gear ring used for meshing the external gear to transmit the rotating force is arranged in the knob. The household appliance provided with the knob mechanism is also disclosed. Use the utility model discloses when revolving the knob operation soon, can enough select the regulation through the working parameter or the function of encoder to equipment, can look over the mutual information that display device shows through transparent portion again, the operation of being convenient for to transmission structure between knob and the pivot is simple, and easily assembly and occupation space are little.

Description

Knob mechanism with display function and household appliance

Technical Field

The utility model relates to a domestic appliance field especially relates to a knob mechanism and domestic appliance with show function.

Background

At present, common household appliances in the market are generally provided with keys or knobs on a shell for adjusting working parameters of the appliances or switching use functions of the appliances, for example, a common electric pressure cooker has more than ten functions of cooking, stewing meat, cooking soup and the like, and the keys are generally used for switching one by one to select required functions; for example, in a common microwave oven, heating time needs to be selected, a knob is generally used for adjustment, the knob is usually in a mechanical type and an electronic type, numerical scales or symbols are marked on the outer ring of the mechanical knob, and an indication mark on the mechanical knob is rotated to be aligned with the corresponding scales or symbols to select the required heating time; or, an electronic knob is used, a display device (a display screen or a nixie tube) is generally arranged on a panel, the knob rotates to drive an encoder to rotate to generate an electric signal, the electric signal is converted by a control unit and then transmitted to the display device, corresponding heating time is displayed on the display device, and the heating time required by the display device after the knob rotates can be selected.

The key operation is very inconvenient for the conditions that the functions are more or the large-range adjustment such as temperature, time and the like is needed, and the key operation is advantageous in that the required functions can be selected only by pressing dozens of keys, so the key operation is slowly eliminated by the market. The mechanical knob also has a similar problem, and is not accurate enough when continuous parameters such as time or temperature are adjusted. The existing electronic type knob is convenient to operate, can be accurately adjusted at the same time, and is the mainstream mode at present, but in the mode, the knob is rotated by hands at one side during operation, and the other side needs to stare at a display device which is at a different position from the knob by eyes, so that the operation convenience is reduced, and meanwhile, errors are easy to occur.

In addition, when the existing knob is installed, the knob is connected with the panel in a rotating mode, holes are formed in the panel generally, the knob is connected in the holes in a rotating mode, certain abutting force is applied to the knob from one side, due to the existence of the assembly gap, the knob can shake in the axial direction and the radial direction of the panel relative to the panel, time-consuming operation is poor in hand feeling, and the use can be influenced due to looseness generated after long-term use.

In view of the above, a new technical solution is needed to overcome the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a knob mechanism and domestic appliance with display function to electronic type knob separately sets up the problem that leads to the inconvenience of operation among the solution prior art with display device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a knob mechanism with a display function, comprising: the display device is used for displaying the interactive information; an encoder having a rotating shaft; and a knob for driving the rotation shaft to rotate; the knob is covered on the display device and the encoder, and is provided with a transparent part corresponding to the display device so that a user can obtain the interactive information; the rotary shaft is fixedly connected with an external gear, and an internal gear ring used for meshing the external gear to transmit rotary force is arranged in the knob.

The technical scheme can be further perfected as follows:

preferably, the transparent part is located at the center of the knob and the display device is located at the center of the transparent part as viewed along the rotation axis of the knob.

Preferably, the knob is provided with a through hole for the display device and the encoder to extend into, and a central axis of the through hole coincides with a rotation axis of the knob.

Preferably, a blocking sheet for covering the through hole is arranged at one end of the knob, which is opposite to the display device, and the transparent part is formed on the blocking sheet.

Preferably, the knob mechanism further comprises a panel, a rotating hole is formed in the panel, the knob is located on one side of the panel and is rotatably mounted on the rotating hole, the display device and the encoder are located on the other side of the panel, and the display device and the encoder extend into the knob through the rotating hole.

Preferably, the knob periphery is equipped with spacing annular, the panel of commentaries on classics hole week circle rotates the gomphosis in spacing annular to prevent the knob rocks along its rotation axis direction relative panel.

Preferably, one end of the knob, which faces the rotary hole, is provided with an elastic clamping jaw serving as a side wall of the limiting ring groove, and one side of the elastic clamping jaw, which faces the rotary hole, is provided with a guide inclined plane, so that the elastic clamping jaw can be extruded to penetrate through the rotary hole and enable the panel of the periphery of the rotary hole to be embedded into the limiting ring groove.

Preferably, the knob is provided with an annular flange protruding outwards in the radial direction as the other side wall of the limiting ring groove.

Preferably, the panel of the periphery of the rotary hole is provided with a containing groove matched with the annular flange, and the annular flange is rotatably embedded in the containing groove to prevent the knob from shaking relative to the panel along the radial direction of the knob.

In order to solve the technical problem, the utility model discloses technical scheme is still provided: a household appliance comprises a shell, wherein a knob mechanism with a display function is installed on the shell.

Owing to adopted above technical scheme, the utility model discloses following beneficial effect has: through establishing the knob lid on display device and encoder, set up transparent portion on the knob to meshing transmission realizes through between ring gear and the external gear that the knob drives the pivot of encoder and rotates, when twisting the knob operation like this, can enough select the regulation through the working parameter or the function of encoder to equipment, can look over the mutual information that display device shows again through transparent portion, the operation of being convenient for, and transmission simple structure between knob and the pivot, easily assembly and occupation space are little.

Drawings

To illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural diagram of a knob mechanism with a display function according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an exploded view II of FIG. 1;

FIG. 4 is a schematic view of the engagement transmission of the knob and the encoder in the embodiment;

FIG. 5 is a schematic view of a multifunctional electric cooker applying the knob mechanism provided in the present embodiment;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic structural view of a knob in the embodiment;

FIG. 8 is an enlarged schematic view of portion A of FIG. 7;

FIG. 9 is a front view of the knob mechanism mounted on the housing;

FIG. 10 is a cross-sectional view taken along line B-B of FIG. 9;

FIG. 11 is an enlarged schematic view of portion C of FIG. 10;

fig. 12 is an enlarged schematic view of a portion D in fig. 10.

Reference numerals:

1. the display device comprises a display device, 2 parts of an encoder, 20 parts of a rotating shaft, 21 parts of an outer gear, 3 parts of a knob, 30 parts of a baffle plate, 300 parts of a transparent part, 31 parts of an inner gear ring, 32 parts of a baffle plate, 33 parts of a limiting ring groove, 34 parts of an elastic clamping jaw, 35 parts of an annular flange, 350 parts of a limiting bulge, 4 parts of a circuit board, 40 parts of a positioning support, 5 parts of a panel, 50 parts of a rotating hole, 51 parts of an accommodating groove, 510 parts of a groove, 6 parts of an electric cooker and 60 parts of a shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item appearing in front of the word "comprising" or "comprises" includes the element or item listed after the word "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

Example (b): the present embodiment provides a knob mechanism with a display function, as shown in fig. 1 to 4, the knob mechanism includes a display device 1, an encoder 2 and a knob 3, wherein the display device 1 is used for displaying interactive information, the knob mechanism drives the encoder 2 to rotate through rotation of the knob 3 therein, the encoder 2 rotates to generate an electrical signal, the electrical signal is transmitted to the display device 1, and corresponding interactive information is displayed on the display device 1, and correspondingly, a transparent portion 300 for a user to obtain the interactive information is provided on the knob 3. In the present embodiment, the encoder 2 is provided with the rotating shaft 20, the position of the rotating shaft 20 is designed to make the rotating shaft 20 deviate from the rotating shaft 20 of the knob 3, and the external gear 21 is fixedly connected to the portion of the rotating shaft 20 extending into the knob 3, and the knob 3 is internally provided with the internal gear ring 31 for engaging the external gear 21 to transmit the rotating force, so that the rotating shaft 20 is driven to rotate by the knob 3 through the direct engagement transmission between the internal gear ring 31 and the external gear 21, the reliability of the direct engagement transmission mode of the internal gear ring 31 and the external gear 21 in the present embodiment is higher, and the failure occurrence probability is reduced. Through establishing the knob lid on display device and encoder, set up transparent portion on the knob to meshing transmission realizes through between ring gear and the external gear that the knob drives the pivot of encoder and rotates, when revolving the knob operation like this, can enough select the regulation through the working parameter or the function of encoder to equipment, can look over the mutual information that display device shows again through transparent portion, the operation of being convenient for, and the transmission simple structure between knob and the pivot, easily assembly and occupation space are little.

It should be noted that the interactive information described in this embodiment refers to the operating parameters or function options of the household appliance to which the knob mechanism is applied.

Further, the encoder 2 and the display device 1 are spaced and offset from each other in the present embodiment as viewed along the axis of the rotation shaft 20 of the knob 3, so that both the rotation shaft 20 and the display device 1 extend into the knob 3, thereby reducing the space occupation along the rotation axis of the knob 3. Specifically, in this embodiment, the knob mechanism further includes a circuit board 4, the display device 1 and the encoder 2 are both mounted on the circuit board 4 and electrically connected through the circuit board 4, and the circuit board 4 is provided to serve as a mounting base plate for the display device 1 and the encoder 2, on the one hand, and directly realize the electrical connection between the display device 1 and the encoder 2, on the other hand. And a positioning bracket 40 for positioning the display device 1 and the encoder 2 is fixedly connected to the circuit board 4 to prevent the display device 1 and the encoder 2 from falling off relative to the circuit board 4, wherein the positioning bracket is fixedly connected to the circuit board 4 in a snap-fit connection manner.

In order to obtain a good display effect, the specific position of the transparent portion is designed in the present embodiment, the transparent portion 300 in the present embodiment is located at the center of the knob 3, and the display device 1 is located at the center of the transparent portion 300, as viewed along the rotation axis of the knob 3, so that the display device 1 is always located at the center of the knob 3 during the process of screwing the knob 3, which is convenient for the user to view. The knob 3 in this embodiment is provided with a through hole for the display device 1 and the encoder 2 to extend through, the central axis of the through hole coincides with the rotation axis of the knob 3, that is, the knob 3 has a symmetrical overall shape relative to the rotation axis, and the knob 3 is hollow, and a plurality of ribs are uniformly arranged on the outer surface of the knob 3 at intervals in this embodiment, so as to increase the strength of the hollow knob 3, prevent the hollow knob 3 from deforming when being stressed, and increase the friction force when being grasped by a user. Further, the transparent portion in this embodiment is formed at an end of the knob 3 facing away from the display device 1, specifically, a blocking piece 30 for covering the through hole is disposed at an end of the knob 3 facing away from the display device 1, and the transparent portion is formed on the blocking piece 30, specifically, the blocking piece 30 itself is transparent in this embodiment, and itself is the transparent portion.

Fig. 5 shows the multifunctional electric cooker 6 to which the knob mechanism is applied, and the application scenario of the knob mechanism is described by taking the application of the knob mechanism provided in this embodiment to the multifunctional electric cooker 6 as an example:

this multi-functional electric saucepan 6 includes casing 60, be equipped with inner bag and heating member in the casing 60, wherein the heating member is located the below of inner bag, this knob mechanism that this embodiment provided installs on casing 60, it is concrete, combine to show in fig. 6, install panel 5 on casing 60 in this embodiment, be equipped with on panel 5 and change hole 50, knob 3 is located one side of panel 5 and rotates and install on changeing hole 50, display device 1 and encoder 2 all are located the opposite side of panel 5 to the two all stretches into in the knob 3 through changeing hole 50. That is, in the present embodiment, the knob mechanism does not include the panel 5, and it is understood that in other embodiments, the knob mechanism may include the panel 5, that is, the panel 5 is assembled as a part of the knob mechanism in advance, and then the knob mechanism including the panel 5 is assembled to the housing 60.

As shown in fig. 7 and 8, in order to prevent the panel 5 of the knob 3 from shaking along the linear direction of the rotation axis 20 in the embodiment, the limiting ring groove 33 is formed in the periphery of the knob 3 in the embodiment, and the panel 5 of the rotation hole 50 is rotatably embedded in the limiting ring groove 33 after the assembly is completed, so as to prevent the knob 3 from shaking along the linear direction of the rotation axis 20 relative to the panel 5, that is, the two side walls of the limiting ring groove 33 simultaneously exert a limiting effect on the two sides of the panel 5 of the rotation hole 50, and compared with the prior art in which the panel 5 of the rotation hole 50 is acted along one side thereof, the panel 5 of the knob 3 can be better prevented from shaking along the linear direction of the rotation axis 20. Specifically, in the present embodiment, an elastic jaw 34 is formed at one end of the knob 3 facing the rotation hole 50 as a side wall of the stopper ring groove 33, and a side of the elastic jaw 34 facing the rotation hole 50 has a guide slope so that the elastic jaw 34 is pressed through the rotation hole 50 and the panel 5 around the rotation hole 50 is fitted into the stopper ring groove 33. An annular flange 35 as the other side wall of the limit ring groove 33 is formed to protrude radially outward at the outer circumference of the knob 3. That is, in the present embodiment, the elastic claws 34 and the annular flange 35 form the above-mentioned limit ring groove 33, it should be noted that in the present embodiment, five elastic claws 34 are provided and are uniformly arranged on the knob 3 in a surrounding manner, and a plurality of elastic claws 34 with other numbers may also be provided.

As shown in fig. 9 to 12, in the present embodiment, a receiving groove 51 adapted to the annular flange 35 is further provided on the panel 5 around the rotation hole 50, and the annular flange 35 is rotatably fitted in the receiving groove 51 to prevent the knob 3 from shaking relative to the panel 5 in the radial direction thereof. Further, still be equipped with recess 510 in the bottom of holding tank 51 in this embodiment, be equipped with spacing arch 350 on annular flange 35 towards the one side of holding tank 51 bottom, spacing arch 350 and recess 510 looks adaptation, like this when the assembly, spacing arch 350 rotates the gomphosis to in the recess 510, can prevent knob 3 along its radial relative panel 5 rocking better. It will be appreciated that the groove 510 may be formed on the annular flange, and the stopper projection 350 may be formed on the bottom of the receiving groove 51.

It is to be understood that the knob mechanism can be applied not only to the above-described electric cooking pots but also to household appliances such as microwave ovens, electric rice cookers, soymilk makers, electric kettles, and the like.

In consideration of the fact that the household appliance using the knob mechanism generally involves heating, as shown in fig. 2, 3 and 6, in order to prevent condensation phenomenon on the real device and the transparent portion due to temperature difference, a baffle 32 is disposed between the transparent portion and the rotary hole 50 in the through hole in the present embodiment, a through hole for the display device 1 to pass through is disposed on the baffle 32, and the baffle 32 is used for blocking the air flow from flowing toward the transparent portion to prevent the air flow from condensing and gathering on the display device 1 and the transparent portion, thereby preventing the display device 1 and the transparent portion from generating fog and preventing the user from being influenced to obtain the interactive information. In this embodiment, a display screen is disposed at an end of the display device 1, and the display screen is capable of displaying the above-mentioned interactive information by passing through the through hole of the display device 1, so that the display screen is located between the baffle 32 and the transparent portion.

The present embodiment provides a description of the assembly process of each component of the knob mechanism: firstly, the baffle plate 30 is arranged in a through hole from the port of the through hole on the side, close to the panel 5, of the knob 3, and the baffle plate 30 is pushed all the time until the baffle plate 30 is clamped and fixed at the port of the through hole on the side, back to the panel 5, of the knob 3. Secondly, the knob 3 provided with the baffle 30 is pressed into the rotary hole 50, and because the elastic claw 34 has elastic deformation capacity, in the process that the knob 3 presses the rotary hole 50, the elastic claw 34 can deform to stretch into the shell 60, and then deforms and recovers to rotatably embed the panel 5 around the rotary hole 50 into the limit ring groove 33, so that the assembly of the knob 3 is completed. Finally, the circuit board 4 with the display device 1 and the encoder 2 mounted thereon is placed in the housing 60, and the circuit board 4 is pushed to make the display device 1 and the encoder 2 extend into the through hole from the rotary hole 50 until the external gear 21 fixedly connected to the rotary shaft 20 is completely engaged with the internal gear 31 on the knob 3, thereby completing the assembly.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A knob mechanism with a display function, comprising:

the display device is used for displaying the interactive information;

an encoder having a rotating shaft; and (c) a second step of,

the knob is used for driving the rotating shaft to rotate;

the method is characterized in that:

the knob covers the display device and the encoder, and is provided with a transparent part corresponding to the display device so that a user can obtain the interactive information;

the rotary shaft is fixedly connected with an external gear, and an internal gear ring used for meshing the external gear to transmit rotary force is arranged in the knob.

2. The knob mechanism with display function according to claim 1, wherein the transparent portion is located at a center of the knob as viewed along a rotation axis of the knob, and the display device is located at the center of the transparent portion.

3. The knob mechanism with display function according to claim 1 or 2, wherein the knob is provided with a through hole into which the display means and the encoder are inserted, and a central axis of the through hole coincides with a rotation axis of the knob.

4. The knob mechanism with display function according to claim 3, wherein a stopper for covering the through hole is provided at an end of the knob facing away from the display device, and the transparent portion is formed on the stopper.

5. The knob mechanism with display function according to claim 1 or 2, further comprising a panel, wherein the panel is provided with a rotation hole, the knob is located at one side of the panel and rotatably mounted on the rotation hole, the display device and the encoder are both located at the other side of the panel, and both of them extend into the knob through the rotation hole.

6. The knob mechanism with display function according to claim 5, wherein a stopper ring groove is formed on an outer periphery of the knob, and a face plate of the periphery of the rotary hole is rotatably fitted in the stopper ring groove to prevent the knob from shaking relative to the face plate in a direction of a rotation axis of the knob.

7. The knob mechanism with display function according to claim 6, wherein an end of the knob facing the rotary hole is formed with an elastic claw as a side wall of the retainer ring groove, and a side of the elastic claw facing the rotary hole has a guide slope so that the elastic claw is pressed through the rotary hole and the panel of the periphery of the rotary hole is fitted into the retainer ring groove.

8. The knob mechanism with display function according to claim 7, wherein an annular flange is formed on the outer periphery of the knob to protrude radially outward as the other side wall of the retainer ring groove.

9. The knob mechanism with display function according to claim 8, wherein the panel of the periphery of the rotary hole is provided with a receiving groove adapted to the annular flange, and the annular flange is rotatably fitted in the receiving groove to prevent the knob from shaking relative to the panel in a radial direction thereof.

10. A household appliance comprising a housing, characterized in that: a knob mechanism with a display function as claimed in any one of claims 1 to 9 is mounted on the housing to adjust and display parameters of the household appliance.

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