CN210040006U - Household electrical appliance - Google Patents

Abstract

The utility model provides a household appliance, which comprises a shell (10) and a knob (20), wherein a control panel (12) is arranged in an inner cavity (11) of the shell (10), a through hole (30) is arranged on the shell (10), and the knob (20) is penetrated through the through hole (30) and is electrically connected with the control panel (12); and a sealing piece (40) is arranged at the edge of the through hole (30), and the sealing piece (40) blocks the gap between the knob (20) and the through hole (30). The utility model discloses can effectively seal the clearance between knob and the casing, avoid dust, spot and moisture to get into the inner chamber through this clearance, guarantee the sensitivity that the knob used, prolong knob and domestic appliance's life.

Description

Household electrical appliance

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a household appliance.

Background

The cooking utensil is a common household appliance, can quickly heat food, is safe and convenient to use, becomes an indispensable part of daily life of people, and improves the life quality of people. Cooking appliances commonly used at present comprise an induction cooker, an electric kettle, an electric rice cooker, a frying and baking machine, an electric chafing dish and the like.

The existing cooking appliances generally have a plurality of working modes during cooking, such as steaming, frying, keeping warm, turning on/off, and the like. Different working modes correspond to different functional modules and heating power in the cooking appliance, and based on more working modes of the cooking appliance, an operating panel of the existing cooking appliance is generally provided with a knob, and the starting and stopping of the working of various functional modules are controlled by the rotation of the knob. The knob is usually passed directly through the housing of the cooking appliance and connected to the control means inside the housing.

However, when the current knob passes through the shell of the cooking appliance, a gap exists between the knob and the shell, so that dust or dirt is easy to enter the inner part of the shell through the gap, or the dirt is accumulated at the gap, the sensitivity of the knob is reduced, even the knob fails, and the service life of the cooking appliance is shortened.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem mentioned in the background art, the utility model provides a domestic appliance can effectively seal the clearance between knob and the casing, avoids dust, spot and moisture to get into the inner chamber through this clearance, guarantees the sensitivity that the knob used, extension knob and domestic appliance's life.

In order to achieve the purpose, the utility model provides a household appliance, including casing and knob, be provided with the control panel in the inner chamber of casing, seted up the through-hole on the casing, the knob is worn to establish the through-hole and is connected with the control panel electricity.

And a sealing element is arranged at the edge of the through hole and used for plugging a gap between the knob and the through hole.

The utility model provides a household appliance is through setting up the through-hole on household appliance's casing for the knob can be connected through the control panel electricity in through-hole and the inner chamber, and the user of being convenient for rotates knob adjustment control panel, thereby adjusts household appliance's operating condition. Through set up the sealing member in the hole edge department of through-hole, utilize the clearance between sealing member shutoff knob and the through-hole, avoid the knob in the use, dust, spot or moisture get into the inner chamber through the clearance between knob and the through-hole, or accumulate in clearance department, reduce dust, spot or moisture to knob and the interior normal work's of electronic component influence, guarantee the sensitivity of knob use, extension knob and domestic appliance's life.

In the household appliance described above, the sealing member may be located at an edge of the through hole on a side close to the inner cavity.

Through setting up the sealing member at the through-hole and be close to the hole edge of inner chamber one side, can reduce the setting degree of difficulty of sealing member, improve the apparent aesthetic property of casing.

In the household appliance described above, the seal is optionally located at an edge of the through hole on a side of the through hole remote from the inner cavity.

Through keeping away from the hole edge of inner chamber one side with the sealing member setting at the through-hole, can reduce the setting degree of difficulty of sealing member, avoid setting up of sealing member to influence the integrality of casing and knob structure simultaneously, prolong domestic appliance's life.

In the household appliance as described above, the knob may optionally include a knob cover located outside the housing, a knob body located in the inner cavity, and a knob post connected between the knob body and the knob cover, at least a portion of the knob post passing through the through hole.

Have the locating part between the inner wall of casing and the knob body, the periphery wall of the inner wall of locating part, casing, knob body and knob post encloses into spacing region jointly, and the sealing member is located spacing region.

Through set up the locating part between the inner wall at the casing and the knob body, utilize the periphery wall of locating part, the inner wall of casing, knob body and knob post to enclose into spacing region jointly to set up the sealing member in spacing region, thereby avoid the sealing member to shift or rock in the use, guarantee the stability that the sealing member set up, improve the leakproofness to the clearance between knob and the casing.

In the household appliance, optionally, at least one first convex rib is arranged on the inner wall of the housing, an end of the first convex rib extends towards the knob body and abuts against the knob body, and the first convex rib forms a limiting member.

And/or, be provided with at least one second protruding muscle on the knob body, the tip of second protruding muscle extends and the butt on the inner wall of casing towards the inner wall of casing, and the second protruding muscle forms the locating part.

Through set up first protruding muscle on the inner wall of casing, set up the protruding muscle of second on the knob body, regard first protruding muscle and/or the protruding muscle of second as the locating part to the realization is spacing and fixed to the sealing member.

In the household appliance, optionally, the inner wall of the casing is provided with a first convex rib, and when the knob body is provided with a second convex rib, the second convex rib is positioned on one side of the first convex rib close to and/or far away from the knob column.

The arrangement can simultaneously realize the fixing effect on the sealing element by utilizing the first convex rib and the second convex rib, and simultaneously improve the sealing performance of the gap between the knob and the shell.

In the household appliance, optionally, the first rib and/or the second rib is/are annular ribs, and the annular ribs surround the knob column.

Or the first convex rib and/or the second convex rib are arc-segment-shaped ribs which are arranged on the periphery of the knob column at intervals along the circumferential direction of the knob column.

In the household appliance, optionally, a first fastening member is disposed on the knob, a fastening direction of the first fastening member faces the inner cavity, and the first fastening member is pressed against the sealing member along the fastening direction.

Through set up first fastener on the knob, utilize first fastener to compress tightly the sealing member, improve the stability that the sealing member set up, guarantee the leakproofness of sealing member to the clearance between knob and the casing.

In the household appliance, optionally, a second fastener is arranged on the outer wall of the housing, the second fastener is connected with the knob post penetrating through the through hole, a concave portion which is concave towards one side of the inner cavity is arranged on the housing, the through hole and the second fastener are both located in the concave portion, and the outer surface of the second fastener is lower than or flush with the outer wall of the housing.

Through set up the second fastener on the outer wall of casing, utilize the fixed casing of second fastener and knob, guarantee the stability that the knob set up. Through set up the depressed part on the casing for the surface of second fastener is less than or is on level with the outer wall of casing, guarantees the aesthetic property of casing outward appearance.

In the above-mentioned household appliance, the sealing member may be a ring-shaped member, and the ring-shaped member may be provided around the knob post.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an inner wall of a housing of a household appliance according to a first embodiment of the present invention;

fig. 2 is a detailed view of a through hole of a housing of a household appliance according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a housing and a knob of a household appliance according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a limiting region of a household appliance according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a knob post of a household appliance according to a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a housing and a knob of a household appliance according to an embodiment of the present invention.

Description of reference numerals:

10-a housing;

11-lumen;

12-a control panel;

13-inner wall;

131-a first rib;

14-an outer wall;

20-a knob;

21-knob cover;

22-knob post;

23-a knob body;

231-second ribs;

30-a through hole;

40-a seal;

50-a limit area;

60-a first fastener;

70-second fastener.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through an intermediary, a connection between two elements, or an interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

Fig. 1 is a schematic structural diagram of an inner wall of a housing of a household appliance according to an embodiment of the present invention. Fig. 2 is a detailed view of a through hole of a housing of a household appliance according to an embodiment of the present invention. Fig. 3 is a schematic structural diagram of a housing and a knob of a household appliance according to an embodiment of the present invention. Fig. 4 is a schematic structural diagram of a limiting region of a household appliance according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a knob post of a household appliance according to an embodiment of the present invention.

The embodiment provides a household appliance, wherein a knob is generally arranged on an operation panel outside the household appliance at present, the start and stop of the work of various functional modules of the household appliance are controlled by the rotation of the knob, the knob generally directly penetrates through a shell of the cooking appliance and then is connected with a control device inside the shell, therefore, an assembly gap can exist between the knob and the shell, external dust, dirt and moisture can be accumulated at the position of the assembly gap, or the external dust, dirt and moisture enters the inside of the shell through the assembly gap, and the normal use of the knob and the household appliance is influenced. Can set up the manger plate muscle in the inside of casing among current domestic appliance, utilize the manger plate muscle to block inside spot and the moisture of seepage entering casing, but the effect of blockking of manger plate muscle is relatively poor, leads to the knob still to receive the influence of dust, spot and moisture.

In order to solve the above technical problem, referring to fig. 1 to 5, the household appliance provided in this embodiment includes a housing 10 and a knob 20, a control board 12 is disposed in an inner cavity 11 of the housing 10, a through hole 30 is formed on the housing 10, and the knob 20 penetrates through the through hole 30 and is electrically connected to the control board 12. Wherein, a sealing member 40 is arranged at the hole edge of the through hole 30, and the sealing member 40 blocks the gap between the knob 20 and the through hole 30.

It should be noted that the household electrical appliance provided in this embodiment may be a cooking appliance, such as an induction cooker, a hot water kettle, an electric stew pot, etc., or a living appliance, such as an electric fan, an electric heater, a vacuum cleaner, etc., and the present embodiment does not limit the specific type of the household electrical appliance, nor is it limited to the above examples.

Specifically, a through hole 30 may be formed in the housing 10 of the household appliance, the knob 20 is electrically connected to the control board 12 in the inner cavity 11 through the through hole 30, and at least a portion of the knob 20 is exposed outside the housing 10, so that a user can operate the knob 20 conveniently. In the using process, the user operates the knob 20 to rotate, so as to regulate and control the working state of each electronic element on the control panel 12, and finally realize the regulation of the working state of the household appliance.

Based on the fact that the knob 20 is electrically connected with the control board 12 through the through hole 30, in order to prevent dust, dirt and moisture from accumulating in the assembly gap between the knob 20 and the housing 10 or entering the inner cavity 11 through the assembly gap, the present embodiment provides a sealing member 40 at the hole edge position of the through hole 30, and the sealing member 40 is used for blocking the gap between the knob 20 and the through hole 30. Wherein the hole edge of the through hole 30 may refer to a portion of the through hole 30 other than the hole inner wall 13. Because the hole inner wall 13 of the through hole 30 abuts against the outer wall 14 of the knob 20, the sealing element 40 is located at the edge of the hole, the abutting state of the through hole 30 and the knob 20 can be effectively prevented from being influenced by the sealing element 40, and the stability of assembling the knob 20 and the shell 10 is ensured.

Specifically, the sealing member 40 may be a rubber member or a resin member, which has certain elasticity and deformation capability, can be tightly abutted to the assembly gap between the housing 10 and the knob 20 under the action of an external force, and has a high structural fitting degree with the assembly gap, thereby achieving a sealing effect.

As an achievable embodiment, the sealing element 40 may be located at the hole edge of the through hole 30 on the side close to the inner cavity 11, as shown with reference to fig. 3.

It should be noted that, the sealing element 40 is located at the hole edge of the through hole 30 close to the inner cavity 11 side, that is, the sealing element 40 is located at the inner wall 13 side of the housing 10, when assembling, the knob column 22 may be connected with the control board 12 first, then the sealing element 40 is disposed on the knob column 22, and finally the housing 10 is assembled on the knob 20, so that the assembling difficulty of the sealing element 40 is greatly reduced, and the manufacturing efficiency of the household appliance is improved. And the sealing member 40 is located on the inner wall 13 of the housing 10, the inner wall 13 of the housing 10 can be used to protect and position the sealing member 40, and the appearance of the housing 10 can be more beautiful.

As another practical embodiment, the sealing member 40 may be located at the hole edge (not shown) of the through hole 30 on the side away from the inner cavity 11. At this moment, the sealing element 40 is located on the outer wall 14 side of the housing 10, during assembly, the knob 20 and the housing 10 can be installed first, and finally the sealing element 40 is fixed on the knob 20, so that the assembly difficulty of the sealing element 40 can be reduced, meanwhile, the assembly process of the housing 10 and the knob 20 is prevented from being affected, and the structural stability of the two is improved.

Specifically, referring to fig. 3 to 5, the knob 20 includes a knob cover 21 located outside the housing 10, a knob body 23 located in the inner cavity 11, and a knob post 22 connected between the knob body 23 and the knob cover 21, and at least a portion of the knob post 22 passes through the through hole 30.

A limiting part is arranged between the inner wall 13 of the shell 10 and the knob body 23, the limiting part, the inner wall 13 of the shell 10, the knob body 23 and the outer peripheral wall of the knob column 22 jointly enclose a limiting area 50, and the sealing element 40 is located in the limiting area 50.

It should be noted that the knob 20 provided in the present embodiment may include a knob body 23 and a knob cover 21, and a knob post 22 connected therebetween, wherein the knob body 23 may be an encoder, the knob cover 21 may be a decorative cover located outside the housing 10, and the knob post 22 may be an operation rod connecting the two. In use, the user rotates the trim cover to rotate the knob post 22 synchronously. The encoder can convert the rotational displacement into a periodic electrical signal, and then convert the electrical signal into a counting pulse to be sent to the electronic component on the control panel 12, so as to complete the input process of the operation signal of the user.

At least a portion of the knob post 22 is disposed through the through hole 30, one end of the knob post 22 is exposed outside the housing 10 and connected to the knob cover 21, and the connection between the knob post and the knob cover may be a snap connection or a screw connection, which is not limited in this embodiment. The other end of the knob post 22 extends into the interior of the housing 10 and is connected to the knob body 23, which may also be a snap connection or a threaded connection.

Because the knob post 22 is inserted into the through hole 30, the gap between the inner wall 13 of the through hole 30 and the outer wall 14 of the knob post 22 forms the assembly gap between the housing 10 and the knob 20. The sealing member 40 may be disposed at a position near the edge of the through hole 30 to the knob post 22, thereby sealing a gap between the inner wall 13 of the through hole 30 and the outer wall 14 of the knob post 22.

Referring to fig. 4, in order to ensure stable arrangement of the sealing element 40 at the gap, a limiting element is arranged between the inner wall 13 of the housing 10 and the knob body 23 of the embodiment, the limiting element, the inner wall 13 of the housing 10, the knob body 23 and the outer peripheral wall of the knob post 22 together enclose a limiting region 50, when the sealing element 40 is located in the limiting region 50, the limiting element, the inner wall 13 of the housing 10, the knob body 23 and the outer peripheral wall of the knob post 22 can respectively limit the sealing element 40 from all directions, so as to prevent the sealing element 40 from shifting or shaking during use, ensure stability of arrangement of the sealing element 40, and thus improve sealing performance of the gap between the knob 20 and the housing 10.

As an achievable embodiment, at least one first rib 131 is provided on the inner wall 13 of the housing 10, an end of the first rib 131 extends toward the knob body 23 and abuts on the knob body 23, and the first rib 131 forms a limiting member. It should be noted that the knob body 23 has a surface corresponding to the inner wall 13 of the housing 10, at least one first rib 131 is disposed on the inner wall 13 of the housing 10, an end of the first rib 131 abuts against the knob body 23, the first rib 131 is used as a limiting member, and a surface of the first rib 131 on a side close to the knob post 22 limits the movement of the sealing element 40 in a direction away from the knob post 22, thereby limiting the sealing element 40.

As another realizable embodiment, at least one second rib 231 is provided on the knob body 23, an end of the second rib 231 extends toward the inner wall 13 of the housing 10 and abuts against the inner wall 13 of the housing 10, and the second rib 231 forms a limiting member. It should be noted that at least one second rib 231 may be disposed on the surface of the knob body 23, an end of the second rib 231 abuts against the inner wall 13 of the housing 10, and the second rib 231 is used as a limiting member, and a surface of the second rib 231 close to the knob post 22 limits the movement of the sealing member 40 in a direction away from the knob post 22, thereby also limiting the movement of the sealing member 40.

In practical use, the user may set the first rib 131 and/or the second rib 231 according to the structural requirements of the inner wall 13 of the housing 10 and the surface of the knob body 23. When the inner wall 13 of the housing 10 is provided with the first rib 131 and the knob body 23 is simultaneously provided with the second rib 231, the second rib 231 is located at a side of the first rib 131 close to and/or far away from the knob post 22.

It should be noted that, when the first rib 131 and the second rib 231 exist at the same time, in order to avoid the mutual influence between the two, the second rib 231 may be disposed at a side of the first rib 131 close to and/or far from the knob post 22. Fig. 4 shows that the second rib 231 is located on one side of the first rib 131 away from the knob post 22, and the ends of the first rib 131 and the second rib 231 face opposite directions respectively to form a mutual "meshing" structure, so that not only the fixing effect on the sealing member 40 can be improved, and the sealing performance of the gap between the knob 20 and the housing 10 can be ensured, but also even if some moisture permeates into the housing 10 through the sealing member 40, the first rib 131 and the second rib 231 can also have a stopping effect on the moisture, and the moisture is prevented from further flowing to the electronic component of the control board 12. When the second rib 231 is disposed on the side of the first rib 131 close to the knob post 22, the above technical effects can be achieved, and are not described herein again.

In an implementation, the first rib 131 and/or the second rib 231 are annular ribs, and the annular ribs surround the periphery of the knob post 22. Such an arrangement can fix and limit the sealing element 40 from various directions on the outer periphery of the knob post 22, thereby preventing the sealing element 40 from moving away from the knob post 22 and improving the sealing effect of the sealing element 40. First protruding muscle 131 and/or second protruding muscle 231 can set up to a plurality ofly, and when first protruding muscle 131 had a plurality ofly, a plurality of first protruding muscle 131 can set up to a plurality of annular muscle structures that the endotheca was established, and the interval between two adjacent first protruding muscle 131 can be set for as required, and this embodiment is not restricted to this. When there are a plurality of second ribs 231, the structure thereof may be the same as that of the first ribs 131, and the description thereof is omitted.

As another realizable embodiment, the first rib 131 and/or the second rib 231 are arc-segment-shaped ribs, and the arc-segment-shaped ribs are arranged at intervals along the circumference of the knob post 22 at the periphery of the knob post 22. Such an arrangement can fix the position of the sealing element 40, which needs to be emphasized, by using the arc-segment structure of the arc-segment-shaped rib structure, so as to purposefully enhance the limiting and fixing effects of the sealing element 40, and simplify the structure of the first rib 131 and/or the second rib 231.

The sealing member 40 may be a ring-shaped member, and the ring-shaped member surrounds the knob post 22. This makes it possible to surround the outer circumference of the knob post 22 with the sealing member 40, thereby sealing the fitting clearance in all directions of the outer circumference of the knob post 22 and improving the sealability between the knob 20 and the housing 10.

Referring to fig. 5, in order to further ensure the stability of the sealing member 40, a first fastening member 60 is disposed on the knob 20, the fastening direction of the first fastening member 60 faces the inner cavity 11, and the first fastening member 60 is pressed against the sealing member 40 along the fastening direction. It should be noted that the first fastener 60 can be coupled to the knob post 22, and the two can be coupled by a threaded or snap-fit connection. The embodiment is described by taking the first fastening member 60 and the knob post 22 as an example of a threaded connection, after the sealing member 40 is disposed in the limiting region 50, the first fastening member 60 can be rotated to move the first fastening member 60 in the fastening direction toward the inner cavity 11, so as to adjust the connection position on the knob post 22, so that the first fastening member 60 presses against the sealing member 40, thereby fixing and limiting the sealing member 40, and ensuring the sealing property of the sealing member 40 to the gap between the knob 20 and the housing 10.

The embodiment of the utility model provides a domestic appliance through setting up the through-hole on domestic appliance's casing for the knob can be connected through the control panel electricity in through-hole and the inner chamber, and the user of being convenient for rotates knob adjustment control panel, thereby adjusts domestic appliance's operating condition. Through set up the sealing member in the hole edge department of through-hole, utilize the clearance between sealing member shutoff knob and the through-hole, avoid the knob in the use, dust, spot or moisture get into the inner chamber through the clearance between knob and the through-hole, or accumulate in clearance department, reduce dust, spot or moisture to knob and the interior normal work's of electronic component influence, guarantee the sensitivity of knob use, extension knob and domestic appliance's life.

Example two

Fig. 6 is a schematic structural diagram of a housing and a knob of a household appliance according to an embodiment of the present invention. Referring to fig. 6, the present embodiment provides another household appliance, and compared with the first embodiment, the second embodiment is different from the first embodiment in that: the structure at the through-hole 30 of the case 10 is different.

Specifically, the outer wall 14 of the housing 10 is provided with a second fastening member 70, the second fastening member 70 is connected to the knob post 22 passing through the through hole 30, the housing 10 is provided with a recessed portion recessed toward one side of the inner cavity 11, the through hole 30 and the second fastening member 70 are both located in the recessed portion, and the outer surface of the second fastening member 70 is lower than or flush with the outer wall 14 of the housing 10.

It should be noted that the second fastener 70 may be coupled to the knob post 22, and both may be threaded and snap-fit. In the embodiment, the two are connected by a thread as an example, after the assembly of the housing 10 and the knob post 22 is completed, the second fastening member 70 is sleeved on the exterior of the knob post 22, and the second fastening member 70 is rotated to move toward the direction close to the inner cavity 11 of the housing 10, so as to be pressed on the outer wall 14 of the housing 10, thereby ensuring the structural stability of the housing 10 and the knob 20.

Further, the housing 10 is provided with a recessed portion recessed toward the inner cavity 11, the through hole 30 and the second fastening member 70 are both located in the recessed portion, and the outer surface of the second fastening member 70 is lower than or flush with the outer wall 14 of the housing 10, so that the second fastening member 70 is prevented from affecting the assembly of the knob cover 21, the aesthetic appearance of the housing 10 is ensured, and the recessed portion can also protect the second fastening member 70.

Other technical features are the same as those of the first embodiment, and the same or corresponding technical effects can be obtained, which are not described herein again.

The embodiment of the utility model provides a second household appliance through setting up the through-hole on household appliance's the casing for the knob can be connected through the control panel electricity in through-hole and the inner chamber, and the user of being convenient for rotates knob adjustment control panel, thereby adjusts household appliance's operating condition. Through set up the sealing member in the hole edge department of through-hole, utilize the clearance between sealing member shutoff knob and the through-hole, avoid the knob in the use, dust, spot or moisture get into the inner chamber through the clearance between knob and the through-hole, or accumulate in clearance department, reduce dust, spot or moisture to knob and the interior normal work's of electronic component influence, guarantee the sensitivity of knob use, extension knob and domestic appliance's life.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The household appliance is characterized by comprising a shell (10) and a knob (20), wherein a control panel (12) is arranged in an inner cavity (11) of the shell (10), a through hole (30) is formed in the shell (10), and the knob (20) penetrates through the through hole (30) and is electrically connected with the control panel (12);

and a sealing piece (40) is arranged at the hole edge of the through hole (30), and the sealing piece (40) blocks the gap between the knob (20) and the through hole (30).

2. Household appliance according to claim 1, characterized in that the seal (40) is located at the hole edge of the through hole (30) on the side close to the inner cavity (11).

3. Household appliance according to claim 1, characterized in that the seal (40) is located at the hole edge of the through hole (30) on the side remote from the inner cavity (11).

4. The household appliance according to claim 2, wherein the knob (20) comprises a knob cover (21) located outside the housing (10), a knob body (23) located in the inner cavity (11), and a knob post (22) connected between the knob body (23) and the knob cover (21), at least part of the knob post (22) passing through the through hole (30);

the limiting piece is arranged between the inner wall (13) of the shell (10) and the knob body (23), the limiting piece, the inner wall (13) of the shell (10), the knob body (23) and the peripheral wall of the knob column (22) jointly enclose a limiting area (50), and the sealing piece (40) is located in the limiting area (50).

5. The household appliance according to claim 4, wherein the inner wall (13) of the housing (10) is provided with at least one first rib (131), an end of the first rib (131) extends towards the knob body (23) and abuts on the knob body (23), the first rib (131) forming the stop;

and/or at least one second convex rib (231) is arranged on the knob body (23), the end part of the second convex rib (231) extends towards the inner wall (13) of the shell (10) and is abutted against the inner wall (13) of the shell (10), and the second convex rib (231) forms the limiting piece.

6. The household appliance according to claim 5, wherein a first rib (131) is provided on the inner wall (13) of the housing (10), and when a second rib (231) is provided on the knob body (23), the second rib (231) is located on a side of the first rib (131) close to and/or far from the knob post (22).

7. The household appliance according to claim 5, wherein the first rib (131) and/or the second rib (231) is an annular rib that surrounds the knob post (22);

or the first convex rib (131) and/or the second convex rib (231) are arc-segment-shaped ribs, and the arc-segment-shaped ribs are arranged on the periphery of the knob column (22) at intervals along the circumferential direction of the knob column (22).

8. Household appliance according to any of claims 4 to 7, wherein a first fastening member (60) is provided on the knob (20), the fastening direction of the first fastening member (60) being directed towards the inner cavity (11), the first fastening member (60) being pressed against the seal (40) in the fastening direction.

9. The household appliance according to claim 8, wherein a second fastening member (70) is arranged on the outer wall (14) of the housing (10), the second fastening member (70) is connected with the knob post (22) penetrating the through hole (30), a recess portion recessed towards one side of the inner cavity (11) is arranged on the housing (10), the through hole (30) and the second fastening member (70) are both positioned in the recess portion, and the outer surface of the second fastening member (70) is lower than or flush with the outer wall (14) of the housing (10).

10. Household appliance according to any of claims 4 to 7, wherein said seal (40) is a ring, which is enclosed at the outer periphery of said knob post (22).

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