CN112538723B

CN112538723B - Knob assembly and electrical equipment

Info

Publication number: CN112538723B
Application number: CN202011595610.2A
Authority: CN
Inventors: 李碧荣; 陈玉雯
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-03-25
Anticipated expiration: 2040-12-29
Also published as: EP4249665A4; WO2022141830A1; CN112538723A; EP4249665A1

Abstract

The invention provides a knob assembly and electrical equipment, wherein the knob assembly comprises: the assembly part comprises an installation groove and a first liquid blocking part, and the first liquid blocking part is positioned on the periphery of the installation groove; the control module is arranged in the mounting groove; the display module is electrically connected with the control module; the knob base is connected with the control module; the knob main body is arranged on the knob base and positioned on the periphery of the control module, and a liquid discharge cavity is defined by the knob main body and the knob base; the drainage part is arranged on the knob base, communicated with the drainage cavity and used for discharging media in the drainage cavity, and the first liquid blocking part is located between the drainage part and the mounting groove. The liquid blocking and draining device can realize effective liquid blocking and effective liquid draining of the knob assembly, and ensures the installation environment and the service life of the display module and the control module.

Description

Knob assembly and electrical equipment

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a knob assembly and electrical equipment.

Background

At present, the control panel of most of the washing machines and other electrical equipment on the market generally has three areas, namely a display area, a key and a knob, and as the functions of the washing machines are more and more, the operation methods are more and more diversified and are more and more complex. Most knobs are common plastic knobs which are used for selecting programs and have single functions and appearances. With the increasing requirements of people on living quality and aesthetic quality, knobs need to improve functionality and simplify operation difficulty, and need to have a breakthrough appearance.

In addition, the knob is always affected by the influence of the condensation of water or vapor on the circuit and display, and particularly for electric products such as washing machines, the damage of water entering the inside of the knob often occurs, which causes unnecessary economic loss.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the present invention provides a knob assembly.

A second aspect of the invention provides an electrical appliance.

The present invention provides, in a first aspect, a rotary knob assembly comprising: the assembly part comprises an installation groove and a first liquid blocking part, and the first liquid blocking part is positioned on the periphery of the installation groove; the control module is arranged in the mounting groove; the display module is electrically connected with the control module; the knob base is connected with the control module; the knob main body is arranged on the knob base and positioned on the periphery of the control module, and a liquid discharge cavity is defined by the knob main body and the knob base; the drainage part is arranged on the knob base, communicated with the drainage cavity and used for discharging media in the drainage cavity, and the first liquid blocking part is located between the drainage part and the mounting groove.

The knob component provided by the invention comprises an assembly part, a control module, a display module, a knob base, a knob main body and a liquid discharge part. The assembly part is provided with an installation groove, and the control module is arranged in the installation groove, so that the stable installation of the control module is ensured; the display module and the knob main body are electrically connected to the control module, and the knob main body can rotate relative to the display module. When the knob assembly is used, programs can be selected by rotating the knob main body, and corresponding program parameters or running state and other information can be displayed through the display module. Therefore, the knob component provided by the invention integrates the functions of control and display, has novel structure, small occupied space and convenient operation by screwing, and can reduce the cost of electrical equipment applying the knob component.

Further, after the knob main body is installed on the knob base, the knob main body and the knob base jointly define a liquid drainage cavity, and a liquid drainage part communicated with the liquid drainage cavity is arranged on the knob base. Therefore, in the use process of the knob assembly, the liquid entering the inside of the knob assembly firstly enters the liquid discharge cavity, and the liquid in the liquid discharge cavity can be directly discharged through the liquid discharge part. Like this, avoided the inside liquid of knob subassembly to persist on the one hand, can in time discharge the inside liquid that enters into the knob subassembly, guaranteed the inside dry environment of knob subassembly, on the other hand has avoided entering into the inside liquid in flowing back chamber and has flowed into display module assembly and control module group, has avoided the knob subassembly to damage because of intaking or getting into the water smoke.

Further, the assembly part also comprises a first liquid blocking part, and the first liquid blocking part is positioned on the periphery of the mounting groove. Like this, after the knob subassembly assembly finishes, first fender liquid position is between knob main part and control module group to can keep off liquid between knob main part and control module group, avoid outside liquid to enter into the inside and the control module group contact of mounting groove, and then guaranteed the environment around the control module group, avoid control module group feed liquor to damage. In addition, the design of the sealing ring in the related technology can be eliminated through the design of the first liquid blocking part, so that the direct contact between the knob main body and the display module and between the knob main body and the assembly part can be ensured, and the smooth rotation of the knob main body is ensured.

Specifically, the assembly parts and the display module of the knob assembly are used as the fixing structure of the knob assembly, and the knob body is used as the rotating structure of the knob assembly. Therefore, certain gaps exist between the knob main body and the display module and between the knob main body and the assembly part, so that smooth and unimpeded rotation is ensured. The knob assembly can be applied to electric equipment such as a washing machine or a clothes dryer, the using environment of the electric equipment such as the washing machine or the clothes dryer is generally a space with heavier moisture such as a toilet, liquid is easy to drip on the display module, and condensed water is easy to generate on the knob module in the clothes drying process, so that the risk of water inflow inside the knob assembly is caused.

Therefore, the liquid discharge cavity is defined by the knob base and the knob body, so that liquid entering the knob assembly can firstly enter the liquid discharge cavity, and the liquid is prevented from flowing and spreading inside the knob assembly. The liquid discharging part is arranged on the knob base, so that liquid entering the liquid discharging cavity is discharged from the liquid discharging part, the liquid is prevented from being retained in the liquid discharging cavity for a long time, the dry environment in the knob assembly is ensured, meanwhile, the knob assembly can discharge the liquid in the liquid discharging cavity in time, and the service life of the knob assembly is ensured.

And after the mounting groove was installed to the control module group, first fender liquid portion can be in between knob main part and the mounting groove, make first fender liquid portion can play good fender liquid effect for the control module group in the mounting groove like this, avoid the liquid on knob main part surface to enter into the mounting groove on the one hand, on the other hand has avoided liquid between knob main part and the display module group to enter into the mounting groove, realized effectively keeping off liquid to the mounting groove, the inside dry environment of mounting groove has been guaranteed, the life of control module group has been guaranteed.

The knob assembly according to the above technical solution of the present invention may further have the following additional technical features:

in the technical scheme, the assembly part comprises an assembly surface, and the mounting groove is arranged on the assembly surface; the first liquid blocking part is connected to the side wall of the mounting groove in a connecting mode and protrudes out of the mounting surface.

In this solution, the fitting comprises a fitting face. Wherein, mounting groove and first fender liquid portion all set up on the mounting surface, and the control module group assembles the inside of mounting groove, and the knob main part sets up on the surface of mounting surface to, there is certain distance between knob main part and the mounting surface, so that pivoted knob main part and fixed mounting surface support do not have direct contact, guarantee the smooth and easy rotation of knob main part.

In addition, first fender liquid portion links up in the lateral wall of mounting groove to the protrusion sets up in the mounting surface, and like this, first fender liquid portion can be in the effective fender liquid of the week side of mounting groove, avoids outside liquid to flow into in the mounting groove from between mounting surface and the knob main part. And, first fender liquid position is between knob main part and mounting groove, and first fender liquid portion links up in the lateral wall of mounting groove, can effectively reduce the distance of knob main part to mounting groove for the compact structure of knob main part and display module assembly and control module group is favorable to realizing knob subassembly's miniaturized design.

In any of the above technical solutions, the second liquid blocking portion is disposed on the knob base and located between the first liquid blocking portion and the liquid discharging portion.

In this technical solution, the knob assembly further includes a second liquid blocking portion. Wherein, the second fender liquid portion sets up on the knob base to be located and all be between first fender liquid portion and the knob main part. The first liquid blocking part and the second liquid blocking part are different in extending direction, the first liquid blocking part is arranged on the assembly part and extends towards the upper knob base, and the second liquid blocking part is arranged on the knob base and extends towards the lower assembly part. Like this for there are the different first fender liquid portion of extending direction and second fender liquid portion between knob main part and the mounting groove, first fender liquid portion uses with the cooperation of second fender liquid portion can form twice waterproof, and then avoids outside liquid to enter into the mounting groove in, especially can avoid entering into the mounting groove from the liquid that the knob main part drips, has avoided this part liquid to enter into the mounting groove between knob main part and the fitting surface.

In any of the above technical solutions, the liquid discharge portion is a liquid discharge channel, and the liquid discharge channel is formed between the second liquid blocking portion and the knob body.

In the technical scheme, the liquid discharging part is a liquid discharging channel, and the liquid discharging channel is defined by the second liquid stopping part and the knob main body together. The liquid discharge channel has certain liquid discharge direction and liquid discharge length. Therefore, the drainage direction of the drainage channel is arranged, so that the drainage channel drains liquid towards the direction far away from the display module and the control module, and the liquid drained from the drainage channel is prevented from entering the inside of the knob assembly again.

And first fender liquid portion and second fender liquid portion set up between drainage portion and mounting groove for first fender liquid portion and second fender liquid portion can keep off liquid between drainage portion and mounting groove, and then make the inside that can not enter into the mounting groove from drainage portion exhaust liquid, have guaranteed the safe in utilization of control module in the mounting groove.

In any of the above technical solutions, the first liquid blocking portion is an annular rib, and the second liquid blocking portion is an annular rib; the control module is positioned in a space surrounded by the first liquid blocking part; the first liquid blocking part is positioned in a space surrounded by the second liquid blocking part; the knob main body is positioned on the periphery of the second liquid blocking part.

In the technical scheme, the first liquid retaining part and the second liquid retaining part are both annular ribs; and the control module is positioned in a space surrounded by the first liquid retaining part, the first liquid retaining part is positioned in a space surrounded by the second liquid retaining part, and the knob main body is positioned at the periphery of the second liquid retaining part. Thus, there are at least two waterproof structures in the direction from the knob body to the mounting groove. And, knob subassembly perhaps transversely sets up after installing electrical equipment, designs first fender liquid portion and second fender liquid portion for annular muscle, can guarantee the water-proof effects of all directions, realizes all-round waterproof.

In particular, the knob assembly may be laterally disposed when the knob assembly is mounted to the electrical device for use. Therefore, through the design of first fender liquid portion and second fender liquid portion for knob subassembly is under the horizontal circumstances that sets up, and the fender liquid that still can be good, and then guarantees to install the safe in utilization of the control module group in the mounting groove.

Specifically, the first liquid blocking portion and the second liquid blocking portion are configured to: liquid is blocked between the liquid discharging part and the mounting groove. First fender liquid portion and second fender liquid portion set up between drainage portion and mounting groove for first fender liquid portion and second fender liquid portion can keep off liquid between drainage portion and mounting groove, and then make from drainage portion exhaust liquid can not enter into the inside of mounting groove, have guaranteed the safe in utilization of control module in the mounting groove. In the use process of the knob assembly, the liquid entering the inside of the knob assembly firstly enters the liquid discharge cavity, and the liquid in the liquid discharge cavity can be directly discharged through the liquid discharge part. Like this, avoided the inside liquid of knob subassembly to persist on the one hand, can in time discharge the inside liquid that enters into the knob subassembly, guaranteed the inside dry environment of knob subassembly, on the other hand has avoided entering into the inside liquid in flowing back chamber and has flowed into display module assembly and control module group, has avoided the knob subassembly to damage because of intaking or getting into the water smoke.

In this embodiment, the distance from the knob body to the mounting surface is smaller than the height of the first liquid blocking portion protruding from the mounting surface. That is, in the height direction of the knob assembly, there is a portion where the first liquid blocking portion and the knob main body partially overlap. Like this, from knob subassembly's side, first fender liquid portion and second fender liquid portion cooperation can shelter from knob subassembly inner space completely to make the periphery that the liquid that drops from the knob main part can directly fall first fender liquid portion, and then make this part liquid can not flow into the mounting groove under the blockking of first fender liquid portion.

Particularly, the knob component can be transversely placed in the using process, so that due to the design of the protruding height of the first liquid retaining part and the distance from the knob main body to the assembling surface, even if the knob component is transversely used, the first liquid retaining part and the second liquid retaining part are matched to completely shield the internal structure of the knob component, so that the first liquid retaining part and the second liquid retaining part can still have a good liquid retaining effect under the condition that the knob component is transversely placed, further, external liquid is prevented from entering the mounting groove, and the service environment and the service life of the control module are ensured.

In any of the above technical solutions, the knob assembly further includes: and the third liquid blocking part is arranged on the knob base and is positioned between the display module and the liquid discharging cavity.

In this technical scheme, the knob subassembly still includes third fender liquid portion. Wherein, third fender liquid portion sets up on the knob base to different with the extending direction of second fender liquid portion, second fender liquid portion extends towards the below of knob base, and third fender liquid portion extends towards the top of knob base, and third fender liquid portion is located between display module assembly and the knob main part. Thus, the third liquid blocking part can block liquid between the knob main body and the display module.

Specifically, the third liquid blocking portion is used as a rotating structure of the knob assembly, and the display module is used as a fixing structure of the knob assembly, so that a certain gap exists between the third liquid blocking portion and the fixing structure, and smooth rotation of the knob main body is guaranteed. During use of the knob body, liquid may enter the gap. Consequently, set up third fender liquid portion between display module assembly and knob main part to block this part liquid through third fender liquid portion and enter into the position that display module assembly located, with the environment of guaranteeing display module assembly, guarantee display module assembly's life.

In any of the above technical solutions, the knob assembly further includes: the cover plate is covered on the display module and covers the third liquid blocking part; and the fourth liquid blocking part is arranged on the cover plate and is positioned between the third liquid blocking part and the liquid discharging cavity.

In this technical scheme, the knob subassembly still includes apron and fourth fender liquid portion. Wherein, the apron lid is established on display module assembly, can play certain guard action to display module assembly, avoids display module assembly to collide with on the one hand, and on the other hand avoids display module assembly to intake. In addition, patterns or colors and the like can be arranged on the cover plate for decoration, so that the final state of the light emitted from the display module is ensured.

Further, a fourth liquid blocking part is arranged on the peripheral side edge of the cover plate and is positioned between the third liquid blocking part and the knob main body. Particularly, the fourth liquid blocking portion and the third liquid blocking portion extend in different directions. The third liquid blocking part is arranged on the knob base and extends upwards; the fourth liquid blocking part is arranged on the cover plate and extends downwards. Like this, through the cooperation of third fender liquid portion and fourth fender liquid portion, can form twice waterproof construction between knob main part and display module assembly to further promote display module assembly's water-proof effects, and can realize that the aspect is waterproof.

In any of the above technical solutions, the fourth liquid blocking portion is disposed at the peripheral side edge of the cover plate and extends toward the inner side of the liquid discharge cavity; and a gap is formed between the fourth liquid blocking part and the knob main body and communicated with the liquid discharging cavity.

In the technical scheme, the fourth liquid blocking part is arranged at the edge of the peripheral side of the cover plate, a gap is formed between the fourth liquid blocking part and the knob main body, the gap ensures that the knob main body and the cover plate cannot be in direct contact with each other, and friction does not exist between the knob main body and the cover plate when the knob main body is rotated. And the gap is communicated with the liquid discharge cavity, so that when the knob assembly is used, liquid flowing into the gap can directly enter the liquid discharge cavity, the liquid is prevented from flowing and spreading everywhere, and is finally discharged through the liquid discharge part, and the service environments and the private service lives of the display module and other control modules are ensured.

Specifically, gap, flowing back chamber and flowing back portion constitute the runner, and this runner is formed between fixed knot constructs and rotating-structure in the knob subassembly to isolated mutually with the display module assembly and the control module group of knob subassembly, be located the periphery of display module assembly and control module group. Like this, through the design of runner, guaranteed on the one hand can smoothly rotate the knob main part, on the other hand has guaranteed the flowing back effect of knob subassembly. Moreover, the effect can be realized without additionally arranging a complex structure, the processing and the manufacturing are convenient, and the structure of the knob component is also facilitated to be designed in a simplest mode.

The fourth liquid blocking portion extends toward the inside of the liquid discharge chamber and is located inside the liquid discharge chamber. Therefore, liquid entering a gap between the cover plate and the knob main body can extend along the fourth liquid blocking portion and drip into the liquid discharging cavity at the end of the fourth liquid blocking portion, and the liquid entering the gap between the cover plate and the knob main body is prevented from extending to the position of the display module.

And, the gap is formed between fourth fender liquid portion and knob main part, makes third fender liquid portion and fourth fender liquid position between flowing back chamber and display module like this to can keep off liquid between flowing back chamber and display module, and then block the liquid flow direction display module that enters into flowing back intracavity portion, guaranteed display module's life.

In any of the above technical solutions, the third liquid blocking portion is an annular rib, and the fourth liquid blocking portion is an annular rib; the display module is positioned in a space surrounded by the third liquid blocking part; the third liquid blocking portion is located in the periphery of the fourth liquid blocking portion, and the knob main body is located in the space surrounded by the fourth liquid blocking portion.

In the technical scheme, the third liquid blocking part and the fourth liquid blocking part are both annular ribs; and the display module is located in the space surrounded by the third liquid blocking portion, the third liquid blocking portion is located in the space surrounded by the fourth liquid blocking portion, and the knob body is located on the periphery of the fourth liquid blocking portion. Like this, there are at least twice waterproof muscle from knob main part to display module assembly, and then there are at least twice waterproof construction. And, the knob subassembly probably is horizontal setting after installing electrical equipment, keeps off liquid portion design for annular muscle with third fender liquid portion and fourth fender liquid portion, can guarantee the water-proof effects of all directions, realizes all-round waterproof.

In the technical scheme, further, the distance from the fourth liquid blocking part to the knob base is smaller than the height of the third liquid blocking part protruding out of the knob base. That is, in the height direction of the knob assembly, there is a portion where the third liquid blocking portion and the fourth liquid blocking portion overlap. Like this, look soon from knob subassembly's side, display module assembly is kept apart completely, has effectively guaranteed the water-proof effects to display module assembly.

Particularly, the knob component can be transversely placed in the use process, so that due to the design of the protruding height of the third liquid blocking part and the distance from the fourth liquid blocking part to the knob base, even if the knob component is transversely used, the third liquid blocking part and the fourth liquid blocking part are matched to completely shield the display module, so that the third liquid blocking part and the fourth liquid blocking part can still have a good liquid blocking effect under the condition that the knob component is transversely placed, further, external liquid is prevented from entering the position of the display module, and the use environment and the service life of the control module are ensured.

In any of the above technical solutions, the knob assembly further includes: the module bracket is connected with the display module and the control module; wherein, be provided with first buckle on the fourth fender liquid portion, the fourth buckle is connected in the module support.

In this technical scheme, knob subassembly still includes the module support, and the module support sets up on the control module group, and display module group sets up on the module support to guarantee display module group's stable installation. In addition, be provided with first buckle on the fourth fender liquid portion to make the first buckle of lid accessible install on the module support, guaranteed the stable connection of lid. And, through the setting of first buckle for fourth fender liquid portion has the function of keeping off liquid and installation concurrently, and then has avoided independent design drainage structure, fender liquid structure and mounting structure, is favorable to simplifying knob subassembly's overall structure, and is favorable to realizing knob subassembly's miniaturized design.

In any one of the above technical schemes, a flanging is arranged on the module support, the flanging cover is arranged on the third liquid retaining part, and the first buckle is connected to the flanging.

In this technical scheme, be provided with the turn-ups on the module support, the turn-ups covers the top at third fender liquid portion to be located at least between third fender liquid portion and the knob main part. Like this, through flange structure and the cooperation of third fender liquid portion, can further promote knob subassembly's water-proof effects, especially avoid outside liquid to cross third fender liquid portion flow direction display module assembly. And, first buckle is connected to the turn-ups for the turn-ups has the effect of installation apron and fender liquid concurrently.

In any one of the above technical solutions, the third liquid blocking portion is provided with a second buckle, and the second buckle is connected to the knob base.

In the technical scheme, the third liquid blocking part is provided with the second buckle, so that the knob main body is installed on the knob base through the second buckle, the stable installation of the knob main body is guaranteed, a user can rotate the rotating part of the encoder through the knob main body and the knob base, and then a corresponding program is selected. This also allows the third liquid blocking portion to serve both as a liquid blocking portion and as a mounting knob body.

In any of the above technical solutions, the knob base is an annular base and is located at the periphery of the module bracket; and/or the liquid discharge cavity is an annular cavity and is positioned on the periphery of the module bracket.

In the technical scheme, the knob base is an annular base and is positioned on the periphery of the module bracket and the display module; correspondingly, the liquid discharging cavity is an annular cavity and is positioned at the periphery of the module bracket and the display module. Thus, when the knob assembly is laterally disposed on an electrical device, liquid entering one side of the knob assembly may flow under gravity toward the other side of the knob assembly and eventually drain from the other side.

In any of the above technical solutions, the main control board is arranged in the mounting groove; the encoder is connected with the main control panel and comprises a rotating part and a fixing part, the knob base is arranged on the rotating part, and the module bracket is arranged on the fixing part; and the lead is electrically connected with the main control board and the display module.

In the technical scheme, the knob assembly further comprises a main control board, an encoder and a lead. Wherein, the lead wire electricity is connected in main control board and display module assembly. The encoder is arranged on the main control board and is electrically connected with the main control board; the encoder includes rotation portion and fixed part, and rotating base sets up in rotation portion, and the knob main part sets up on the knob base, and then has guaranteed the rotation of knob main part. The module support sets up on the fixed part to display module assembly sets up on the module support, has guaranteed display module assembly's fixed connection. In addition, the lead wire is connected to the main control board and the display module, so that signal transmission between the main control board and the display module is guaranteed, and the display module can display corresponding parameter information.

In any one of the above technical solutions, the display module includes: the display bracket is arranged on the module bracket; the display panel is arranged on one side of the display bracket facing the module bracket and is electrically connected with the main control panel; the display film is arranged on one side of the display bracket, which is far away from the module bracket; wherein, be provided with the leaded light hole on the display support, the display film is provided with character or pattern.

In the technical scheme, the display bracket is arranged on the module bracket, the display panel is arranged on one side of the display bracket facing the module bracket, the display panel is electrically connected to the main control panel through a lead, the display film is arranged on one side of the display bracket departing from the module bracket, the display bracket is provided with a light guide hole, the display film is provided with characters or patterns, and when program selection is carried out, the light emitting diode on the display panel is lightened and is displayed through the display bracket and the display film.

A second aspect of the present invention provides an electrical apparatus, comprising: a knob assembly according to any of the preceding claims.

The electrical equipment provided by the invention is provided with the knob component in any technical scheme. Therefore, based on all the beneficial effects of the electrical equipment, the discussion is omitted.

Specifically, the electrical devices include, but are not limited to: washing machines, clothes dryers, washing and drying integrated machines and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of a rotary knob assembly (including a fitting) according to one embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of the knob assembly shown in FIG. 1;

FIG. 3 is an enlarged view of the knob assembly of the embodiment of FIG. 2 at section B;

FIG. 4 is a front view (with fittings removed) of the knob assembly of one embodiment of the present invention;

FIG. 5 is a cross-sectional view of the knob assembly shown in FIG. 4 taken along C-C;

FIG. 6 is a bottom view of the knob base, the module holder and the knob body in the knob assembly according to one embodiment of the present invention;

FIG. 7 is a top view of the knob base, the module holder and the knob body in the knob assembly according to one embodiment of the present invention;

FIG. 8 is a cross-sectional view along D-D of the knob base, the module bracket, and the knob body of the embodiment shown in FIG. 7;

FIG. 9 is a bottom view of a module support in the knob assembly according to one embodiment of the present invention;

FIG. 10 is a top view of a module support in the knob assembly according to one embodiment of the present invention;

FIG. 11 is a cross-sectional view of the module holder of FIG. 10 taken along E-E;

FIG. 12 is a bottom view of a knob base in the knob assembly according to one embodiment of the present invention;

FIG. 13 is a top view of a knob base in the knob assembly according to one embodiment of the present invention;

FIG. 14 is a cross-sectional view of the knob base of FIG. 13 taken along F-F;

FIG. 15 is a top view of a knob body in the knob assembly according to one embodiment of the present invention;

FIG. 16 is a cross-sectional view G-G of the knob body shown in FIG. 15;

FIG. 17 is an exploded view of the knob assembly shown in FIG. 4;

FIG. 18 is a schematic view of the connection between the main control board and the encoder in the knob assembly according to an embodiment of the present invention;

FIG. 19 is yet another cross-sectional view of the knob assembly shown in FIG. 4;

FIG. 20 is yet another cross-sectional view of the knob assembly shown in FIG. 4;

FIG. 21 is a schematic diagram of the display panel and display bracket of the rotary knob assembly according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 21 is:

102 main control panel, 104 encoder, 106 knob base, 108 module support, 110 display panel, 112 display support, 114 display film, 116 knob main body, 118 cover plate, 120 display module, 122 liquid discharge cavity, 124 gap, 126 liquid discharge part, 128 second liquid stop part, 130 third liquid stop part, 132 fourth liquid stop part, 134 rotating part, 136 fixing part, 138 lead wire, 140 assembly part, 142 mounting groove, 144 first liquid stop part, 146 flanging, 148 first buckle, 150 second buckle, 152 third buckle, 154 fourth buckle, 156 knob decoration, 158 fifth buckle, 160 assembly surface, control module 162.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A knob assembly and an electric device provided according to some embodiments of the present invention are described below with reference to fig. 1 to 21. Wherein arrows in fig. 3, 5, 8, 19, and 20 indicate the liquid flow direction.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a knob assembly, including: the assembly 140, the control module 162, the display module 120, the knob base 106, the knob body 116, and the drain 126. The assembly part 140 is provided with an installation groove 142, and the control module 162 is arranged in the installation groove 142, so that the stable installation of the control module 162 is ensured; the display module 120 and the knob body 116 are electrically connected to the control module 162, and the knob body 116 can rotate relative to the display module 120. When the knob assembly is used, the knob body 116 is rotated to select a program, and the display module 120 displays information such as corresponding program parameters or operating states. Therefore, the knob component provided by the embodiment of the invention integrates the functions of control and display, has novel structure, small occupied space and convenient operation by screwing, and can reduce the cost of electrical equipment using the knob component.

Further, as shown in fig. 3, after the knob body 116 is mounted to the knob base 106, the knob body 116 and the knob base 106 define a drain cavity 122, and a drain 126 communicating with the drain cavity 122 is provided on the knob base 106. Thus, during use of the knob assembly, fluid entering the interior of the knob assembly will first enter the drain chamber 122, and fluid within the drain chamber 122 will be drained directly through the drain 126. Like this, avoided the inside liquid of knob subassembly to persist on the one hand, can in time discharge the inside liquid that enters into the knob subassembly, guaranteed the inside dry environment of knob subassembly, on the other hand has avoided entering into the inside liquid of flowing back chamber 122 and has flowed into display module 120 and control module 162, has avoided the knob subassembly to damage because of intaking or entering water smoke.

Further, as shown in fig. 3, the fitting 140 further includes a first liquid blocking portion 144, and the first liquid blocking portion 144 is located at an outer periphery of the mounting groove 142. Like this, after the knob subassembly finishes assembling, first fender liquid portion 144 is located between knob main part 116 and the control module 162 to can keep off liquid between knob main part 116 and control module 162, avoid outside liquid to enter into the inside of mounting groove 142 and contact with control module 162, and then guaranteed the environment around the control module 162, avoid control module 162 feed liquor to damage. In addition, the embodiment of the present invention can eliminate the design of the sealing ring in the related art by the design of the first liquid blocking portion 144, so as to ensure that the knob main body 116 and the display module 120 and the knob main body 116 and the assembly member 140 are not in direct contact, and ensure that the knob main body rotates smoothly.

Specifically, as shown in fig. 3, the assembly 140 of the knob assembly and the display module 120 are used as a fixing structure of the knob assembly, and the knob body 116 is used as a rotating structure of the knob assembly. Therefore, a certain gap exists between the knob body 116 and the display module 120 and between the knob body 116 and the assembly member 140 to ensure smooth and unimpeded rotation. The knob assembly can be applied to electric appliances such as a washing machine or a clothes dryer, the use environment of the electric appliances such as the washing machine or the clothes dryer is generally a space with heavier moisture such as a toilet, liquid is easy to drip on the display module 120, and condensed water is easy to generate on the knob module in the clothes drying process, so that the risk of water inflow inside the knob assembly is caused.

Therefore, the drain cavity 122 is defined by the knob base 106 and the knob body 116, so that the liquid entering the knob assembly can first enter the drain cavity 122, and the liquid is prevented from flowing and spreading inside the knob assembly. In the embodiment of the present invention, the liquid drainage portion 126 is further disposed on the knob base 106, so that the liquid entering the liquid drainage cavity 122 is drained from the liquid drainage portion 126, the liquid is prevented from being retained in the liquid drainage cavity 122 for a long time, a dry environment inside the knob assembly is ensured, meanwhile, the knob assembly is ensured to be capable of draining the liquid inside the liquid drainage cavity 122 in time, and the service life of the knob assembly is ensured.

Moreover, as shown in fig. 3, after the control module 162 is installed in the installation groove 142, the first liquid blocking portion 144 may be located between the knob main body 116 and the installation groove 142, so that the first liquid blocking portion 144 may play a good liquid blocking effect for the control module 162 in the installation groove 142, on one hand, liquid on the surface of the knob main body 116 is prevented from entering the installation groove 142, on the other hand, liquid between the knob main body 116 and the display module 120 is prevented from entering the installation groove 142, effective liquid blocking of the installation groove 142 is realized, the internal dry environment of the installation groove 142 is ensured, and the service life of the control module 162 is ensured.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3, the fitting 140 includes a fitting surface 160. Wherein, mounting groove 142 and first fender liquid portion 144 all set up on assembly surface 160, and control module 162 assembles the inside to mounting groove 142, and knob main part 116 sets up on the surface of assembly surface 160 to, there is certain distance between knob main part 116 and the assembly surface 160, so that pivoted knob main part 116 and fixed assembly surface 160 support do not have direct contact, guarantee the smooth and easy rotation of knob main part 116.

In addition, as shown in fig. 3, the first liquid blocking portion 144 is engaged with the side wall of the mounting groove 142 and protrudes from the mounting surface 160, so that the first liquid blocking portion 144 can effectively block liquid on the peripheral side of the mounting groove 142, and prevent external liquid from flowing into the mounting groove 142 from between the mounting surface 160 and the knob body 116. Moreover, the first liquid blocking portion 144 is located between the knob main body 116 and the mounting groove 142, and the first liquid blocking portion 144 is connected to the side wall of the mounting groove 142, so that the distance from the knob main body 116 to the mounting groove 142 can be effectively reduced, the knob main body 116, the display module 120 and the control module 162 are compact in structure, and the knob assembly is miniaturized.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3, the knob assembly further includes a second liquid blocking portion 128. Wherein the second liquid blocking portion 128 is disposed on the knob base 106 and is located between the first liquid blocking portion 144 and the knob body 116.

As shown in fig. 3, the first liquid blocking portion 144 and the second liquid blocking portion 128 extend in different directions, the first liquid blocking portion 144 is provided on the fitting 140 and extends toward the upper knob base 106, and the second liquid blocking portion 128 is provided on the knob base 106 and extends toward the lower fitting 140. Thus, a first liquid retaining portion 144 and a second liquid retaining portion 128 which extend in different directions exist between the knob main body 116 and the mounting groove 142, the first liquid retaining portion 144 and the second liquid retaining portion 128 are matched for use to form two waterproof functions, so that external liquid is prevented from entering the mounting groove 142, particularly liquid dripping from the knob main body 116 is prevented from entering the mounting groove 142, and the liquid is prevented from entering the mounting groove 142 from a position between the knob main body 116 and the assembling surface 160.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 4, 5, 6, 7 and 8, the liquid drainage portion 126 is a liquid drainage channel, and the liquid drainage channel is defined by the second liquid blocking portion 128 and the knob body 116. The liquid discharge channel has certain liquid discharge direction and liquid discharge length. Therefore, the liquid discharging direction of the liquid discharging channel is set so that the liquid discharging channel discharges liquid in a direction away from the display module 120 and the control module 162, and the liquid discharged from the liquid discharging channel is prevented from entering the inside of the knob assembly again.

As shown in fig. 3, the first liquid blocking portion 144 and the second liquid blocking portion 128 are disposed between the liquid discharging portion 126 and the mounting groove 142, so that the first liquid blocking portion 144 and the second liquid blocking portion 128 can block liquid between the liquid discharging portion 126 and the mounting groove 142, and further, liquid discharged from the liquid discharging portion 126 cannot enter the mounting groove 142, thereby ensuring the safety of the control module 162 in the mounting groove 142.

The drain portion 126 may be a drain port as it is, and the drain port may be provided to penetrate the knob base 106.

Specifically, as shown in fig. 12, 13 and 14, the liquid drainage portion 126 is a water guiding groove formed in the periphery of the second liquid stopping portion 128, and is arranged at intervals in the circumferential direction of the second liquid stopping portion 128, the outer wall of the second liquid stopping portion 128 is tightly attached to the inner wall of the knob main body 116, and only the position of the water guiding groove is provided with an opening, so that external liquid is not easy to enter the inside of the liquid drainage cavity 122, and the liquid in the liquid drainage cavity 122 can flow out through the liquid drainage portion 126, thereby well achieving the functions of liquid stopping and liquid drainage.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3, 12, 13 and 14, the first liquid blocking portion 144 and the second liquid blocking portion 128 are both annular ribs; the control module 162 is located in a space surrounded by the first liquid blocking portion 144, the first liquid blocking portion 144 is located in a space surrounded by the second liquid blocking portion 128, and the knob body 116 is located on the outer periphery of the second liquid blocking portion 128. Thus, there is at least two water proofs in the direction from the knob body 116 to the mounting groove 142. And, the knob assembly may be transversely arranged after being installed on the electrical equipment, and the first liquid blocking part 144 and the second liquid blocking part 128 are designed as annular ribs, so that the waterproof effect in all directions can be ensured, and the omnibearing waterproof effect can be realized.

In particular, the knob assembly may be laterally disposed when the knob assembly is mounted to the electrical device for use. Therefore, through the design of the first liquid blocking portion 144 and the second liquid blocking portion 128, the knob assembly can still well block liquid under the condition of being transversely arranged, and therefore, the use safety of the control module 162 installed in the installation groove 142 is ensured.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3, the first liquid blocking portion 144 and the second liquid blocking portion 128 are configured to: liquid is blocked between the drain 126 and the mounting groove 142. First fender portion 144 and second fender portion 128 set up between flowing back portion 126 and mounting groove 142 for first fender portion 144 and second fender portion 128 can keep off the liquid between flowing back portion 126 and mounting groove 142, and then make the inside that can not enter into mounting groove 142 from the liquid that flowing back portion 126 was discharged, have guaranteed control module 162's safety in utilization in the mounting groove 142.

As shown in FIGS. 3 and 8, during use of the knob assembly, fluid entering the interior of the knob assembly may first enter the drainage lumen 122, and fluid within the drainage lumen 122 may drain directly through the drainage portion 126. Like this, avoided the inside liquid of knob subassembly to persist on the one hand, can in time discharge the inside liquid that enters into the knob subassembly, guaranteed the inside dry environment of knob subassembly, on the other hand has avoided entering into the inside liquid of flowing back chamber 122 and has flowed into display module 120 and control module 162, has avoided the knob subassembly to damage because of intaking or entering water smoke.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3, a distance from the knob body 116 to the mounting surface 160 is smaller than a height of the first liquid blocking portion 144 protruding from the mounting surface 160. That is, in the height direction of the knob assembly, there is a portion where the first liquid blocking portion 144 overlaps with the knob body 116. In this way, the first liquid blocking portion 144 and the second liquid blocking portion 128 cooperate to completely block the internal space of the knob assembly when viewed from the side of the knob assembly, and the liquid dripping from the knob body 116 directly falls to the periphery of the first liquid blocking portion 144, so that the liquid does not flow into the mounting groove 142 under the blocking of the first liquid blocking portion 144.

In particular, as shown in fig. 1 and 2, the knob assembly may be placed horizontally during use, so that due to the design of the protruding height of the first liquid blocking portion 144 and the distance from the knob body 116 to the mounting surface 160, even if the knob assembly is used horizontally, the first liquid blocking portion 144 and the second liquid blocking portion 128 cooperate to completely block the internal structure of the knob assembly, so that the first liquid blocking portion 144 and the second liquid blocking portion 128 can still achieve a good liquid blocking effect under the condition that the knob assembly is placed horizontally, thereby preventing external liquid from entering the mounting groove 142, and ensuring the service environment and the service life of the control module 162.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 12, 13 and 14, the knob assembly further includes a third liquid blocking portion 130. Wherein, the third liquid blocking part 130 is arranged on the knob base 106; as shown in fig. 3, 5, and 8, the third liquid blocking portion 130 and the second liquid blocking portion 128 extend in different directions, the second liquid blocking portion 128 extends downward of the knob base 106, the third liquid blocking portion 130 extends upward of the knob base 106, and the third liquid blocking portion 130 is located between the display module 120 and the knob body 116. Thus, the third liquid blocking portion 130 can block liquid between the knob body 116 and the display module 120.

Specifically, as shown in fig. 6, 7 and 8, the knob body 116 serves as a rotating structure of the knob assembly, and the display module 120 serves as a fixing structure of the knob assembly, so that a certain gap exists between the two to ensure smooth rotation of the knob body 116. Liquid may enter the gap during use of the knob body 116. Therefore, the third liquid blocking portion 130 is disposed between the display module 120 and the knob body 116, and the third liquid blocking portion 130 blocks the liquid from entering the position where the display module 120 is located, so as to ensure the environment of the display module 120 and the service life of the display module 120.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 4 and 5, the knob assembly further includes a cover plate 118 and a fourth liquid blocking portion 132. Wherein, apron 118 lid is established on display module assembly 120, can play certain guard action to display module assembly 120, avoids display module assembly 120 to collide with on the one hand, and on the other hand avoids display module assembly 120 to intake. In addition, patterns or colors can be arranged on the cover plate 118 for decoration, so that the state of the light emitted from the display module 120 is ensured to be finally presented.

Further, a fourth liquid blocking portion 132 is provided at the circumferential side edge of the cover plate 118 between the third liquid blocking portion 130 and the knob body 116. In particular, the fourth liquid blocking portion 132 and the third liquid blocking portion 130 extend in different directions. The third liquid blocking part 130 is arranged on the knob base 106 and extends upwards; the fourth liquid blocking portion 132 is provided on the cover plate 118 and extends downward. Like this, through the cooperation of third fender liquid portion 130 and fourth fender liquid portion 132, can form twice waterproof construction between knob main part 116 and display module assembly 120 to further promote display module assembly 120's water-proof effects, and can realize that the full aspect is waterproof.

In the knob assembly according to the embodiment of the present invention, further, the fourth liquid blocking portion 132 is disposed at the peripheral edge of the cover plate 118, and a gap 124 is formed between the fourth liquid blocking portion 132 and the knob body 116, and the gap 124 ensures that the knob body 116 and the cover plate 118 do not directly contact with each other, and ensures that there is no friction between the knob body 116 and the cover plate when the knob body 116 is rotated. In addition, the gap 124 is communicated with the liquid discharge cavity 122, so that when the knob assembly is used, liquid flowing into the gap 124 can directly enter the liquid discharge cavity 122, the liquid is prevented from flowing and spreading around, and the liquid is finally discharged through the liquid discharge part 126, and the service environment and the private service life of the display module 120 and other control modules 162 are ensured.

Specifically, the assembly member 140 and the display module 120 of the knob assembly are used as a fixing structure of the knob assembly, the knob body 116 is used as a rotating structure of the knob assembly, and the gap 124, the liquid discharge cavity 122 and the liquid discharge portion 126 form a flow channel, which is formed between the fixing structure and the rotating structure in the knob assembly, is isolated from the display module 120 and the control module 162 of the knob assembly, and is located at the periphery of the display module 120 and the control module 162. Thus, through the design of the flow channel, on one hand, the knob main body 116 can be smoothly rotated, and on the other hand, the liquid discharge effect of the knob assembly is ensured. Moreover, the effect can be realized without additionally arranging a complex structure, the processing and the manufacturing are convenient, and the structure of the knob component is also facilitated to be designed in a simplest mode.

Fourth liquid blocking portion 132 extends toward the inside of discharge chamber 122 and is located inside discharge chamber 122. Thus, the liquid entering the gap 124 between the cover plate 118 and the knob body 116 spreads along the fourth liquid blocking portion 132 and drops into the liquid discharge chamber 122 at the end of the fourth liquid blocking portion 132, and the liquid entering the gap 124 between the cover plate 118 and the knob body 116 is prevented from spreading to the position where the display module 120 is located.

In addition, the gap 124 is formed between the fourth liquid blocking portion 132 and the knob main body 116, so that the third liquid blocking portion 130 and the fourth liquid blocking portion 132 are located between the liquid discharging cavity 122 and the display module 120, and liquid can be blocked between the liquid discharging cavity 122 and the display module 120, thereby blocking the liquid entering the liquid discharging cavity 122 from flowing to the display module 120, and ensuring the service life of the display module 120.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3 and 5, the third liquid blocking portion 130 and the fourth liquid blocking portion 132 are both annular ribs; the display module 120 is located in a space surrounded by the third liquid blocking portion 130, the third liquid blocking portion 130 is located in a space surrounded by the fourth liquid blocking portion 132, and the knob body 116 is located on the outer periphery of the fourth liquid blocking portion 132. Thus, there are at least two waterproof ribs from the knob body 116 to the display module 120, and thus there are at least two waterproof structures. And, the knob subassembly probably transversely sets up after installing electrical equipment, designs third fender liquid portion 130 and fourth fender liquid portion 132 for annular muscle, can guarantee the water-proof effects of all directions, realizes all-round waterproof.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3 and 5, a distance from the fourth liquid blocking portion 132 to the knob base 106 is smaller than a height of the third liquid blocking portion 130 protruding from the knob base 106. That is, in the height direction of the knob assembly, there is a portion where the third liquid blocking portion 130 and the fourth liquid blocking portion 132 partially overlap. Like this, look soon from knob subassembly's side, display module assembly 120 is kept apart completely, has effectively guaranteed the water-proof effects to display module assembly 120.

Particularly, as shown in fig. 1 and 2, the knob assembly may be placed horizontally in the use process, so that due to the design of the protruding height of the third liquid blocking portion 130 and the distance from the fourth liquid blocking portion 132 to the knob base 106 in the embodiment of the present invention, even if the knob assembly is used horizontally, the display module 120 can be completely shielded by the cooperation of the third liquid blocking portion 130 and the fourth liquid blocking portion 132, so that the third liquid blocking portion 130 and the fourth liquid blocking portion 132 can still achieve a good liquid blocking effect under the condition that the knob assembly is placed horizontally, thereby preventing external liquid from entering the position where the display module 120 is located, and ensuring the use environment and the service life of the control module 162.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 9, 10 and 11, the knob assembly further includes a module bracket 108, the module bracket 108 is disposed on the control module 162, and the display module 120 is disposed on the module bracket 108, so as to ensure stable installation of the display module 120. In addition, the fourth liquid blocking portion 132 is provided with a first buckle 148, so that the cover can be mounted on the module bracket 108 through the first buckle 148, and the stable connection of the cover is ensured. And, through the setting of first buckle 148 for fourth fender liquid portion 132 has the function of keeping off liquid and installation concurrently, and then has avoided independent design drainage structure, fender liquid structure and mounting structure, is favorable to simplifying the overall structure of knob subassembly, and is favorable to realizing the miniaturized design of knob subassembly.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 9, 10 and 11, a flange 146 is disposed on the module bracket 108, and the flange 146 covers the third liquid blocking portion 130 and is at least located between the third liquid blocking portion 130 and the knob main body 116. Thus, as shown in fig. 8, the flange 146 and the third liquid blocking portion 130 cooperate to further improve the waterproof effect of the knob assembly, and particularly prevent external liquid from flowing to the display module 120 beyond the third liquid blocking portion 130. Moreover, the first buckle 148 is connected to the flange 146, so that the flange 146 has the functions of installing the cover plate 118 and blocking liquid.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 15 and 16, the third liquid blocking portion 130 is provided with a second buckle 150, so that the knob body 116 is mounted on the knob base 106 through the second buckle 150, and stable mounting of the knob body 116 is ensured, so that a user can rotate the rotating portion 134 of the encoder 104 through the knob body 116 and the knob base 106, and further select a corresponding program. This also allows the third liquid blocking portion 130 to function as both a liquid blocking portion and the mounting knob body 116.

In the knob assembly according to the embodiment of the present invention, further, as shown in fig. 1 and 2, the knob base 106 is an annular base and is located at the outer periphery of the module bracket 108 and the display module 120; accordingly, the drain cavity 122 is an annular cavity and is located at the outer periphery of the module holder 108 and the display module 120. Thus, when the knob assembly is laterally disposed on an electrical device, liquid entering one side of the knob assembly may flow under gravity toward the other side of the knob assembly and eventually drain from the other side.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 3 and 5, the knob assembly further includes a main control board 102, an encoder 104, and a lead wire 138. The lead wires 138 are electrically connected to the main control board 102 and the display module 120. The main control board 102 is disposed in the mounting groove 142, and the encoder 104 is disposed on the main control board 102 and electrically connected to the main control board 102; the encoder 104 includes a rotating portion 134 and a fixing portion 136, the rotating base is disposed on the rotating portion 134, and the knob body 116 is disposed on the knob base 106, thereby ensuring rotation of the knob body 116. The module bracket 108 is disposed on the fixing portion 136, and the display module 120 is disposed on the module bracket 108, thereby ensuring the fixed connection of the display module 120. In addition, the lead wire 138 is connected to the main control board 102 and the display module 120, so as to ensure the signal transmission between the main control board 102 and the display module 120, and further enable the display module 120 to display the corresponding parameter information.

In the knob assembly according to the embodiment of the present invention, as shown in fig. 17 and 21, the display bracket 112 is disposed on the module bracket 108, the display panel 110 is disposed on a side of the display bracket 112 facing the module bracket 108, the display panel 110 is electrically connected to the main control panel 102 through the lead wire 138, the display film 114 is disposed on a side of the display bracket 112 away from the module bracket 108, and the display bracket 112 is provided with a light guide hole, and the display film 114 is provided with a character or a pattern, so that when a program is selected, the light emitting diode on the display panel 110 is lit and displayed through the display bracket 112 and the display film 114.

An embodiment of the present invention provides an electrical device, including: a knob assembly as in any one of the embodiments above.

The electrical equipment provided by the embodiment of the invention is provided with the knob assembly in any one of the above embodiments. Therefore, based on all the beneficial effects of the electrical equipment, the discussion is omitted.

As shown in fig. 1, 2, 3 and 17, in a specific embodiment, the knob assembly includes a fitting 140, a main control board 102, an encoder 104, a module bracket 108, a display module 120, a knob base 106, a knob body 116, a cover plate 118, and the like. As shown in fig. 3, the assembly member 140 is provided with a mounting groove 142, and the main control board 102 and the encoder 104 are disposed in the mounting groove 142; as shown in fig. 3, the encoder 104 includes a rotating portion 134 and a fixing portion 136, the module bracket 108 is connected to the fixing portion 136 of the encoder 104, the display module 120 is disposed on the module bracket 108, the cover 118 is disposed on the display module 120, and the module bracket 108 is connected to the display module 120; the knob base 106 is connected to the rotating portion 134 of the encoder 104, and the knob body 116 is disposed on the knob base 106 and outside the display module 120. As shown in fig. 3, 5 and 8, the knob body 116 and the knob base 106 define a drain cavity 122, a gap 124 is formed between the peripheral edge of the cover plate 118 and the knob body 116, a drain 126 is formed between the base body and the knob body 116, and the gap 124 and the drain 126 are communicated with opposite sides of the drain cavity 122 (specifically, the gap 124 is communicated with the upper side of the drain cavity 122, and the drain 126 is communicated with the lower side of the drain cavity 122).

In this embodiment, as shown in fig. 3, 5 and 8, the gap 124, the drainage cavity 122 and the drainage portion 126 form a flow channel, which is formed between the fixed structure and the rotating structure in the knob assembly, is isolated from the display module 120 and the control module 162 of the knob assembly, and is located at the periphery of the display module 120 and the control module 162. Thus, through the design of the flow channel, on one hand, the knob main body 116 can be smoothly rotated, and on the other hand, the liquid discharge effect of the knob assembly is ensured. Moreover, the effect can be realized without additionally arranging a complex structure, the processing and the manufacturing are convenient, and the structure of the knob component is also facilitated to be designed in a simplest mode.

In this embodiment, as shown in fig. 3, 5 and 8, a first liquid blocking portion 144 is disposed on the mounting surface 160 of the mounting member 140, and after the knob assembly is mounted, the first liquid blocking portion 144 is located between the knob main body 116 and the control module 162 and can block liquid between the knob main body 116 and the control module 162, so as to prevent external liquid from entering the inside of the mounting groove 142, thereby ensuring the environment around the control module 162 and preventing the control module 162 from being damaged by the liquid.

Further, as shown in fig. 3, 5, and 8, the knob base 106 extends toward the circumferential side and is provided to cover the first liquid blocking portion 144, while the edge of the knob base 106 is provided with the second liquid blocking portion 128, the knob body 116 is located at the outer periphery of the second liquid blocking portion 128, and the liquid discharge portion 126 is formed between the second liquid blocking portion 128 and the knob body 116. Like this, first fender portion 144 and second fender portion 128 set up between flowing back portion 126 and mounting groove 142 for there are first fender portion 144 and second fender portion 128 simultaneously in flowing back portion 126 and mounting groove 142, and first fender portion 144 uses with the cooperation of second fender portion 128 can form dual waterproof, and then avoids the discharged liquid of flowing back portion 126 and outside liquid to enter into mounting groove 142 in, has guaranteed the safe in utilization of control module 162 in mounting groove 142.

In this embodiment, as shown in fig. 3, 5 and 8, a third liquid blocking portion 130 is disposed on the knob base 106, and the third liquid blocking portion 130 extends toward the upper side of the knob base 106 and is located between the display module 120 and the knob main body 116. Thus, the third liquid blocking portion 130 can block liquid between the knob body 116 and the display module 120, and particularly can block liquid inside the liquid discharging cavity 122 from entering the position of the display module 120, so as to ensure the environment of the display module 120 and the service life of the display module 120.

As shown in fig. 3, 5, and 8, a fourth liquid blocking portion 132 is provided on the circumferential edge of the cover plate 118, a gap 124 is formed between the fourth liquid blocking portion 132 and the knob body 116, and the fourth liquid blocking portion 132 is located between the third liquid blocking portion 130 and the gap 124. Like this, through the cooperation of third fender liquid portion 130 and fourth fender liquid portion 132, can form dual waterproof between gap 124 and display module assembly 120 to further promote display module assembly 120's water-proof effects, and can realize that the full aspect is waterproof, guaranteed display module assembly 120's life.

Further, as shown in fig. 3, 5, and 8, the fourth liquid blocking portion 132 extends from the position of the slit 124 toward the inside of the liquid discharge chamber 122, so that the fourth liquid blocking portion 132 can function as a drainage rib. Therefore, the liquid entering the gap 124 between the cover plate 118 and the knob body 116 can spread along the fourth liquid blocking portion 132 and drip into the liquid discharging cavity 122 at the end of the fourth liquid blocking portion 132, and the liquid entering the gap 124 between the cover plate 118 and the knob body 116 is prevented from spreading to the position of the display module 120.

Specifically, most of the control panels of the washing machines on the market generally have three areas, namely a display area, a key and a knob, and as the functions of the washing machines are more and more, the operation methods are more and more diversified and are more and more complex. Most knobs are common plastic knobs which are used for selecting programs and have single functions and appearances. With the increasing requirements of people on living quality and aesthetic quality, knobs need to improve functionality and simplify operation difficulty, and need to have a breakthrough appearance.

In order to meet the requirements of simplifying an operation mode and an operation interface and increasing the practicability and the attractiveness of the knob, the knob assembly integrating the display function and the program selection function is designed in the embodiment of the invention, and the knob is novel in appearance and simple to operate.

As shown in fig. 17, the knob assembly includes a coded switch and a cover plate 118; the coding switch includes a rotatable portion (knob base 106, knob body 116, knob decoration 156), an encoder 104 and its main control board 102, and a fixed display portion (display module 120, module bracket 108, cover 118). The display module 120 includes a display panel 110, a display bracket 112, and a display film 114; the encoder 104 associates the rotating portion and the fixed display portion as an intermediary.

Specifically, as shown in fig. 18, the encoder 104 is mounted on the main control board 102, and by means of the stitch welding, the rotation of the encoder 104 and the program on the main control board 102 are triggered accordingly. As shown in fig. 8 and 14, the knob base 106 is fixed to the rotating portion 134 of the encoder 104 by fifth snaps 158 that are circumferentially distributed. As shown in FIG. 20, the knob body 116 is secured to the knob base 106 by an inboard second catch 150. As shown in fig. 15, 16 and 19, the knob garnish 156 functions as an indicating program and is fixed to the knob body 116 by the third catch 152. As shown in fig. 19, the module holder 108 is fixed to the fixing portion 136 of the encoder 104 by the fourth hooks 154 distributed circumferentially. The entire portion is stationary so that the display portion does not move when the knob body 116 is rotated. As shown in fig. 21, the display module 120 is placed in the module holder 108, and the display panel 110 is mounted on the back of the display holder 112 and fixed by sealing; the display film 114 is attached to the front surface of the display frame 112, characters and patterns to be displayed are printed on the display film 114, and when a program is selected, the light emitting diodes on the display panel 110 are lit and displayed through the display frame 112 and the display film 114. The cover plate 118 covers the display module 120 and is mounted on the module bracket 108 through the first buckle 148; specifically, the first buckle 148 is disposed on the fourth liquid-blocking portion 132, so that the fourth liquid-blocking portion 132 has the functions of drainage, liquid blocking and installation fixing. The cover 118 is typically patterned or colored for decoration. It is ensured that the light emitted from the display module 120 is finally presented on the knob assembly.

In particular, such a form factor has been plagued by the effects of water ingress or water vapor condensation affecting the circuitry and display, and thus, embodiments of the present invention improve the drainage and retention of water from the knob assembly.

As shown in fig. 3, 5 and 8, the water may enter through the gap 124 between the front cover plate 118 of the knob assembly and the knob body 116, or may enter through the gap 124 between the fitting 140 and the knob body 116. The fourth liquid blocking portion 132 is arranged on the edge of the cover plate 118, and the third liquid blocking portion 130 is matched with the knob base 106, so that the possibility that water flows into the interior from the front side of the knob assembly is reduced. In addition, a plurality of drains 126 are also disposed around the knob base 106 to direct water flow from the drains 126. Second, the first dam 144 of the second dam 128 of the knob base 106, which is on the fitting 140, also blocks the outside lateral water flow from entering the interior of the knob assembly.

In the embodiment of the application, the knob component realizes the effect of integrating the program selection function and the display function, so that the display area of the electrical equipment applying the knob component is reduced, and the original display area has more design space; through the improvement of the internal structure of the knob assembly (the first liquid blocking part 144, the second liquid blocking part 128, the third liquid blocking part 130, the fourth liquid blocking part 132 and the liquid discharging part 126), the waterproofness and the water drainage of the knob assembly are effectively ensured.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A knob assembly, comprising:

a fitting part (140), the fitting part (140) comprising a mounting groove (142) and a first liquid blocking part (144), the first liquid blocking part (144) being located at the periphery of the mounting groove (142);

the control module (162) is arranged in the mounting groove (142);

the display module (120) is electrically connected with the control module (162);

a knob base (106) connected with the control module (162);

the knob main body (116) is arranged on the knob base (106) and is positioned on the periphery of the control module (162), and the knob main body (116) and the knob base (106) define a liquid discharge cavity (122);

the liquid discharging part (126) is arranged on the knob base (106), the liquid discharging part (126) is communicated with the liquid discharging cavity (122) and is used for discharging media in the liquid discharging cavity (122), and the first liquid blocking part (144) is positioned between the liquid discharging part (126) and the mounting groove (142);

the assembly part (140) and the display module (120) are used as a fixing structure of the knob component, and the knob main body (116) is used as a rotating structure of the knob component.

2. The knob assembly according to claim 1,

the assembly part (140) comprises an assembly surface (160), and the mounting groove (142) is arranged on the assembly surface (160);

the first liquid blocking part (144) is connected with the side wall of the mounting groove (142) and protrudes out of the assembling surface (160).

3. The knob assembly according to claim 1,

and a second liquid blocking section (128) provided on the knob base (106) and located between the first liquid blocking section (144) and the liquid discharge section (126).

4. The knob assembly according to claim 3,

the drainage portion (126) is a drainage channel formed between the second liquid blocking portion (128) and the knob body (116).

5. The knob assembly according to claim 3,

the first liquid blocking part (144) is an annular rib, and the second liquid blocking part (128) is an annular rib;

the control module (162) is positioned in a space surrounded by the first liquid retaining part (144);

the first liquid blocking part (144) is positioned in a space surrounded by the second liquid blocking part (128);

the knob body (116) is located on the outer periphery of the second liquid blocking portion (128).

6. The knob assembly according to any one of claims 1 to 5, further comprising:

and the third liquid blocking part (130) is arranged on the knob base (106) and is positioned between the display module (120) and the liquid discharging cavity (122).

7. The knob assembly according to claim 6, further comprising:

the cover plate (118) is covered on the display module (120) and covers the third liquid blocking part (130);

and a fourth liquid blocking portion (132) provided to the cover plate (118) and located between the third liquid blocking portion (130) and the liquid discharge chamber (122).

8. The knob assembly according to claim 7,

the fourth liquid blocking part (132) is arranged at the peripheral side edge of the cover plate (118) and extends towards the inner side of the liquid discharge cavity (122);

wherein a gap (124) is formed between the fourth liquid blocking portion (132) and the knob body (116), and the gap (124) is communicated with the liquid discharge cavity (122).

9. The knob assembly according to claim 8,

the third liquid blocking part (130) is an annular rib, and the fourth liquid blocking part (132) is an annular rib;

the display module (120) is positioned in a space surrounded by the third liquid blocking part (130);

the third liquid blocking part (130) is positioned in a space surrounded by the fourth liquid blocking part (132);

the knob body (116) is located on the outer periphery of the fourth liquid blocking portion (132).

10. The knob assembly according to claim 7, further comprising:

a module bracket (108) connected to the display module (120) and the control module (162);

wherein, the fourth liquid blocking part (132) is provided with a first buckle (148), and the first buckle (148) is connected to the module bracket (108).

11. The knob assembly according to claim 10,

the module support (108) is provided with a flange (146), the flange (146) is covered on the third liquid blocking part (130), and the first buckle (148) is connected to the flange (146).

12. The knob assembly according to claim 6,

a second buckle (150) is arranged on the third liquid blocking part (130), and the second buckle (150) is connected to the knob base (106).

13. The knob assembly according to claim 10,

the knob base (106) is an annular base and is positioned on the periphery of the module bracket (108); and/or

The liquid discharge cavity (122) is an annular cavity and is positioned on the periphery of the module bracket (108).

14. The knob assembly according to claim 10, wherein the control module (162) comprises:

the main control board (102) is arranged in the mounting groove (142);

the encoder (104) is connected with the main control board (102), the encoder (104) comprises a rotating part (134) and a fixing part (136), the knob base (106) is arranged on the rotating part (134), and the module bracket (108) is arranged on the fixing part (136);

and the lead (138) is electrically connected with the main control board (102) and the display module (120).

15. The knob assembly according to claim 14, wherein the display module (120) comprises:

a display bracket (112) disposed on the module bracket (108);

the display panel (110) is arranged on one side, facing the module bracket (108), of the display bracket (112) and is electrically connected with the main control panel (102);

the display film (114) is arranged on one side, away from the module bracket (108), of the display bracket (112);

wherein, be provided with the leaded light hole on showing support (112), show membrane (114) is provided with characters or pattern.

16. An electrical device, comprising:

the knob assembly according to any one of claims 1 to 15.