Knob assembly and household appliance

Abstract

The utility model provides a knob assembly. The knob assembly comprises a shell, a pressing assembly, an encoder, a mounting plate and at least one touch switch, the encoder and the touch switch are both arranged on the mounting plate, the touch switch is arranged along the peripheral side of the encoder, the shell sleeves the outer ring side wall of the encoder and is clamped with the encoder, the pressing assembly is located in the shell and is rotationally connected with the shell, and the pressing assembly is inserted into the mounting plate; an elastic piece is also arranged between the shell and the encoder; when the shell is pressed downwards in the axial direction of the shell, the touch switch is triggered, and the elastic piece is made to deform. The utility model further provides a household appliance comprising the knob assembly. The knob button structure solves the problem that the existing knob button structure is easy to be pressed and stuck, and has the characteristics of simplicity in installation and smoothness in pressing.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and in particular to a knob assembly and a household appliance. Background Art

[0002] Kitchen appliances are the main part of household appliances. They refer to a type of household appliances specially used in home kitchens. According to their uses, they are divided into five categories: food preparation, preparation, cooking, storage and kitchen hygiene. They include refrigerators, disinfection cabinets, range hoods, gas stoves, ovens, microwave ovens, etc. Users can choose suitable appliances according to their needs and select the appropriate mode by pressing buttons.

[0003] The buttons in the knob-button structure currently on the market are fixed on the encoder, and the touch switch is in the middle. During the operation of the product, it is easy to get stuck, and the periphery of the button is easy to get stuck. At the same time, the hand feel is uneven when pressing, resulting in the product not being able to work properly; that is, the buttons and knobs in the knob-button structure are designed with a split type. When the user presses the button or rotates the knob, there is relative movement between the button and the knob in their axial directions, and there is friction, resulting in an unsmooth feel. At the same time, the current structure installation is relatively complicated. Utility Model Content

[0004] Based on this, in order to solve the problem that the existing knob button structure is prone to pressing jams, the utility model provides a knob assembly and a household appliance, and its specific technical solution is as follows:

[0005] A knob assembly, comprising:

[0006] A housing, a push assembly, an encoder, a mounting plate, and at least one tact switch;

[0007] The encoder and the touch switch are both arranged on the mounting plate, the housing is sleeved on the outer ring side wall of the encoder and is clamped with the encoder, the pressing component is located in the housing and is rotatably connected with the housing, and the pressing component is plugged with the mounting plate;

[0008] An elastic member is also provided between the housing and the encoder;

[0009] When the housing is pressed downward along its axial direction, the touch switch is triggered and the elastic member is deformed.

[0010] The above-mentioned knob assembly realizes a rotation selection function by engaging the outer shell with the encoder in a snap-fit ​​manner so that when the outer shell is rotated, the outer ring of the encoder can be driven to rotate; the pressing assembly is assembled in the outer shell and is rotationally connected to the outer shell. When pressure is applied to the pressing assembly, the outer shell is driven to be pressed down in its axial direction and contact the touch switch to trigger the touch switch, thereby realizing a press confirmation function; on the other hand, the pressing assembly is rotationally connected to the outer shell and is plugged into the mounting plate at the same time. When the outer shell rotates, the pressing assembly can be relatively stationary relative to the mounting plate, so that the logo or display pattern on the pressing assembly will not rotate and is easy to identify; in addition, by engaging the outer shell with the encoder and the structure in which the outer shell can undergo axial displacement, a shell that can be rotated and pressed at the same time is obtained, which ensures a smooth feel of rotating and pressing the knob assembly, effectively reduces the probability of the outer shell being stuck, reduces the requirements for coaxial assembly accuracy during assembly, simplifies the installation process, and thus simplifies the assembly process of the knob assembly.

[0011] Furthermore, it also includes a bracket fixedly connected to the mounting plate; the bracket is provided with an avoidance hole for the shell to pass through; the shell reciprocates in the avoidance hole along its axial direction.

[0012] Furthermore, the bracket is provided with an annular groove, and the shell is provided with an annular pressing portion, and the annular pressing portion is rotatably connected to the annular groove.

[0013] Furthermore, the shell is provided with a first accommodating groove and a second accommodating groove, both of which are arranged in an annular shape; the peripheral wall of the encoder is plugged into the first accommodating groove; the elastic member is sleeved on the side wall of the second accommodating groove, one end of the elastic member is connected to the encoder and the other end is connected to the top surface of the second accommodating groove.

[0014] Furthermore, the encoder is provided with a guide groove, the housing is provided with a guide column, the guide column is located in the first accommodating groove, and the guide column is slidably connected to the guide groove.

[0015] Furthermore, the pressing assembly includes a cover plate, a display screen and a button connected in sequence; the cover plate is plugged into the button; the button is provided with a slot for accommodating the display screen; and one end of the button away from the cover plate is plugged into the mounting plate.

[0016] Furthermore, the housing is provided with a step portion, and the step portion overlaps with the bottom surface of the button.

[0017] Furthermore, a limiting portion is provided at one end of the button away from the cover plate, and the limiting portion is plugged into the mounting plate and slides relative to the mounting plate along the axial direction of the button.

[0018] Furthermore, the mounting plate is provided with a plug-in hole matching the outer contour of the limiting portion.

[0019] A household appliance comprises the above-mentioned knob assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0021] Figure 1 This is one of the exploded structural schematic diagrams of the knob assembly according to one embodiment of the utility model;

[0022] Figure 2 This is the second exploded structural schematic diagram of the knob assembly according to one embodiment of the utility model;

[0023] Figure 3 This is one of the partial cross-sectional structural schematic diagrams of the knob assembly described in one embodiment of the utility model;

[0024] Figure 4 This is the second partial cross-sectional structural schematic diagram of the knob assembly described in the first embodiment of the utility model;

[0025] Figure 5 It is a partial structural schematic diagram of a knob assembly according to an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of the structure of an encoder according to an embodiment of the utility model;

[0027] Figure 7 This is one of the structural schematic diagrams of the knob assembly and the household appliance according to one embodiment of the utility model;

[0028] Figure 8 This is the second structural schematic diagram of the knob assembly and the household appliance described in one embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Shell; 11. Pressing part; 12. First accommodating groove; 13. Second accommodating groove; 14. Guide column; 2. Pressing assembly; 21. Cover plate; 22. Display screen; 23. Button; 231. Limiting part; 3. Encoder; 31. Guide groove; 4. Mounting plate; 41. Plug-in hole; 5. Touch switch; 6. Elastic member; 7. Bracket; 71. Annular groove; 8. Household appliance. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] The "first" and "second" mentioned in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0035] like Figure 1 to Figure 6 As shown, a knob assembly in one embodiment of the utility model includes a shell 1, a pressing assembly 2, an encoder 3, a mounting plate 4 and at least one touch switch 5; the encoder 3 and the touch switch 5 are both arranged on the mounting plate 4, the touch switch 5 is arranged along the circumference of the encoder 3, the shell 1 is sleeved on the outer ring side wall of the encoder 3 and is clamped with the encoder 3, the pressing assembly 2 is located in the shell 1 and is rotatably connected to the shell 1, and the pressing assembly 2 is plugged into the mounting plate 4; an elastic member 6 is also arranged between the shell 1 and the encoder 3; when the shell 1 is pressed down along its axial direction, the touch switch 5 is triggered and the elastic member 6 is deformed.

[0036] The above-mentioned knob assembly, by engaging the shell 1 with the encoder 3, can drive the outer ring of the encoder 3 to rotate when the shell 1 is rotated, thereby realizing the rotation selection function; the pressing assembly 2 is assembled in the shell 1 and is rotatably connected to the shell 1, and when pressure is applied to the pressing assembly 2, the shell 1 is driven to press down along its axial direction and contact the touch switch 5, thereby triggering the touch switch 5, thereby realizing the pressing confirmation function; on the other hand, the pressing assembly 2 is rotatably connected to the shell 1 and plugged into the mounting plate 4. When the shell 1 rotates, the pressing assembly 2 can be relatively still relative to the mounting plate 4, so that the logo or display pattern on the pressing assembly 2 will not rotate, thereby facilitating identification; in addition, by engaging the shell 1 with the encoder 3 and the structure in which the shell 1 can undergo axial displacement, a shell 1 that can be rotated and pressed at the same time is obtained, thereby ensuring the smooth feel of the knob assembly rotating and pressing, effectively reducing the probability of the shell 1 being stuck, reducing the requirements for the coaxial assembly accuracy during the assembly process, simplifying the installation process, and making the assembly process of the knob assembly simple.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, in one of the embodiments, it further includes a bracket 7 fixedly connected to the mounting plate 4; the bracket 7 is provided with an avoidance hole for the shell 1 to pass through; the shell 1 reciprocates in the avoidance hole along its axial direction.

[0038] Among them, a space for accommodating the shell 1, the encoder 3 and the touch switch 5 is formed between the bracket 7 and the mounting plate 4. After the pressing component 2 is connected to the shell 1 and the encoder 3 is connected to the mounting plate 4, one end of the elastic member 6 is placed on the encoder 3, and the shell 1 is sleeved on the other end of the elastic member 6. Then, the bracket 7 is sleeved on the shell 1 and the bracket 7 and the mounting plate 4 are fixed and installed using screws, bolts, expansion screws and other fixing parts.

[0039] Preferably, the mounting board 4 is a PCB board, which is a prior art and will not be described in detail here.

[0040] Preferably, the diameter of the avoidance hole is larger than the outer diameter of the shell 1, so that an avoidance space is formed between the avoidance hole and the outer wall of the outer diameter, reducing the friction between the shell 1 and the bracket 7 when rotating or being pressed, thereby improving the user experience and reducing jamming.

[0041] Specifically, the bracket 7 is provided with an annular groove 71 , and the housing 1 is provided with an annular pressing portion 11 , and the annular pressing portion 11 is rotatably connected to the annular groove 71 .

[0042] Preferably, the outer contour of the shell 1 is a hollow cylinder, and the annular pressing portion 11 is located at one end thereof close to the touch switch 5, and the outer diameter of the annular pressing portion 11 is larger than the diameter of the avoidance hole and smaller than the inner diameter of the annular groove 71, so as to reduce the friction between the annular pressing portion 11 and the annular groove 71 during rotation, thereby reducing jamming.

[0043] On the other hand, the depth of the annular groove 71 is greater than the thickness of the annular pressing portion 11, forming a sliding space in the axial direction of the outer shell 1, providing sliding space for the outer shell 1 to reciprocate along its axial direction; at the same time, providing a limit for the outer shell 1 in the axial direction to prevent the outer shell 1 from falling off the bracket 7.

[0044] like Figure 1 to Figure 5 As shown, in one embodiment, the housing 1 is provided with a first accommodating groove 12 and a second accommodating groove 13 both of which are arranged in an annular shape; the peripheral wall of the encoder 3 is plugged into the first accommodating groove 12; the elastic member 6 is sleeved on the side wall of the second accommodating groove 13, one end of the elastic member 6 is connected to the encoder 3 and the other end is connected to the top surface of the second accommodating groove 13.

[0045] Preferably, at least one touch switch 5 is disposed along the circumference of the encoder 3 , and the touch switch 5 can be triggered when the pressing portion 11 is pressed in the axial direction of the encoder 3 .

[0046] Preferably, the opening of the first receiving groove 12 and the opening of the second receiving groove 13 are both in the direction of the encoder 3, and the first receiving groove 12 is located on the inner side of the second receiving groove 13; wherein, the elastic member 6 can provide a reset force, and the elastic member 6 is connected between the encoder 3 and the housing 1, so that when the housing 1 rotates, the encoder 3, the elastic member 6 and the housing 1 rotate at the same time, and the housing 1, the elastic member 6 and the encoder 3 remain relatively stationary while rotating. When the user rotates the housing 1, the rotating part, the connecting part, the elastic member 6, and the housing 1 rotate synchronously and can be relatively stationary, so that the elastic member 6 does not hinder the rotational movement of the rotating part while providing the reset force, and the user's rotation feel is smoother, and the housing 1 can achieve the operation of pressing and rotating while being pressed; in addition, since the housing 1 and the encoder 3 are relatively stationary, there is no friction between the two, which makes the pressing and rotating feel better.

[0047] Preferably, the elastic member 6 can be understood as a structure capable of providing a restoring force, such as a spring, a spring, a torsion spring, silicone, rubber, foam, an elastic arm, etc.

[0048] Specifically, the encoder 3 is provided with a guide groove 31 , and the housing 1 is provided with a guide post 14 . The guide post 14 is located in the first receiving groove 12 , and the guide post 14 is slidably connected to the guide groove 31 .

[0049] Among them, the guide column 14 is inserted into the guide groove 31, and the guide column 14 can drive the rotation when it rotates. The guide column 14 and the guide groove 31 are arranged in multiple groups in an array so that the force transmission can be smooth. At the same time, in the axial direction of the shell 1, the guide column 14 can slide along the guide groove 31.

[0050] like Figure 1 and 2 As shown, in one embodiment, the pressing assembly 2 includes a cover plate 21, a display screen 22 and a button 23 connected in sequence; the cover plate 21 is plugged into the button 23; the button 23 is provided with a slot for accommodating the display screen 22; and the end of the button 23 away from the cover plate 21 is plugged into the mounting plate 4.

[0051] Preferably, the cover plate 21 is a transparent panel-shaped component, so that the user can see the content on the display screen 22 clearly; the display screen 22 remains stationary during the rotation of the housing 1, and the rotation of the housing 1 will not affect the user's normal observation of the display screen 22.

[0052] Among them, pressing the cover plate 21 causes it to apply pressure to the button 23, and the button 23 then presses the shell 1, causing the shell 1 to be displaced along its axial direction; one end of the button 23 penetrates the hollow space inside the shell 1 and is plugged into the mounting plate 4, so that when the shell 1 rotates, the button 23 and the mounting plate 4 are relatively stationary and do not rotate, and at the same time, when plugged into the mounting plate 4, it does not affect the displacement of the button 23 in the axial direction of the shell 1.

[0053] Specifically, the housing 1 is provided with a step portion, and the step portion overlaps with the bottom surface of the key 23. In this way, the step portion provides axial limitation for the key 23.

[0054] Specifically, a stopper 231 is provided at one end of the button 23 away from the cover plate 21, and the stopper 231 is plugged into the mounting plate 4 and slides relative to the mounting plate 4 along the axial direction of the button 23. In this way, the button 23 and the mounting plate 4 are relatively stationary.

[0055] Specifically, the mounting plate 4 is provided with an inserting hole 41 matching the outer contour of the limiting portion 231. In this way, the button 23 can reciprocate in the axial direction.

[0056] like Figure 7 and Figure 8 As shown, a household appliance 8 includes the above-mentioned knob assembly.

[0057] Preferably, the household appliance 8 is provided with an installation space capable of accommodating the knob assembly and is provided with a through hole through which the housing 1 passes, the bracket 7 is fixedly connected to the household appliance 8, and one end of the housing 1 connected to the pressing assembly 2 extends outside the household appliance 8.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A knob assembly, characterized in that: include: A housing, a push assembly, an encoder, a mounting plate, and at least one tact switch; The encoder and the touch switch are both arranged on the mounting plate, the housing is sleeved on the outer ring side wall of the encoder and is clamped with the encoder, the pressing component is located in the housing and is rotatably connected with the housing, and the pressing component is plugged with the mounting plate; An elastic member is also provided between the housing and the encoder; When the housing is pressed downward along its axial direction, the touch switch is triggered and the elastic member is deformed; It also includes a bracket fixedly connected to the mounting plate; the bracket is provided with an escape hole for the shell to pass through; the shell reciprocates in the escape hole along its axial direction; The bracket is provided with an annular groove, and the housing is provided with an annular pressing portion, and the annular pressing portion is rotatably connected to the annular groove; The outer contour of the shell is a hollow cylinder, the annular pressing portion is located at one end thereof close to the touch switch, and the outer diameter of the annular pressing portion is larger than the diameter of the avoidance hole and smaller than the inner diameter of the annular groove.

2. The knob assembly according to claim 1, characterized in that: The shell is provided with a first accommodating groove and a second accommodating groove, both of which are arranged in an annular shape; the peripheral wall of the encoder is plugged into the first accommodating groove; the elastic member is sleeved on the side wall of the second accommodating groove, one end of the elastic member is connected to the encoder and the other end is connected to the top surface of the second accommodating groove.

3. The knob assembly according to claim 2, characterized in that: The encoder is provided with a guide groove, the housing is provided with a guide column, the guide column is located in the first accommodating groove, and the guide column is slidably connected to the guide groove.

4. The knob assembly according to claim 1, characterized in that: The pressing assembly includes a cover plate, a display screen and a button which are connected in sequence; the cover plate is plugged into the button; the button is provided with a slot for accommodating the display screen; and one end of the button away from the cover plate is plugged into the mounting plate.

5. The knob assembly according to claim 4, characterized in that: The housing is provided with a step portion, and the step portion overlaps with the bottom surface of the button.

6. The knob assembly according to claim 4, characterized in that: A limiting portion is provided at one end of the button away from the cover plate. The limiting portion is plugged into the mounting plate and slides relative to the mounting plate along the axial direction of the button.

7. The knob assembly according to claim 6, characterized in that: The mounting plate is provided with a plug-in hole matching the outer contour of the limiting portion.

8. A household appliance, comprising the knob assembly according to any one of claims 1 to 7.

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