CN110858527B - Knob components and household appliances - Google Patents

Abstract

The invention relates to the technical field of switches, in particular to a knob assembly and a household appliance with the knob assembly. The knob assembly comprises a knob and a dial switch, wherein a plurality of elastic buckles are arranged on the inner side wall of the knob, a plurality of clamping grooves matched with the elastic buckles are arranged on the outer side wall of the dial switch, more than one reference part is arranged on the outer side wall of the knob, and each reference part is opposite to one elastic buckle. According to the knob assembly provided by the invention, at least one reference part is arranged on the outer side wall of the knob, and each reference part is opposite to one elastic buckle. When the elastic buckle and the clamping groove are installed, the installation task of the knob assembly can be completed by directly pressing down the knob just by aligning the reference part with the clamping groove before installation, and compared with the prior art, the elastic buckle and the clamping groove are aligned after the installer is not required to overturn the knob to observe the specific position of the elastic buckle. Thereby saving the time required for the installer to install the knob assembly.

Description

Knob components and household appliances

Technical field

The present invention relates to the field of switch technology, and in particular, to a knob assembly and a household appliance equipped with the knob assembly.

Background technique

In the existing technology, a knob assembly is installed on the control panel of the washing machine for selecting the washing mode, washing time or dehydration time. The knob assembly on the existing washing machine includes a knob and a DIP switch fixed on the control panel of the washing machine. The knob It is snap-connected to the DIP switch on the control panel. Specifically, an elastic buckle is provided on the inner wall of the knob, and a reference part that matches the elastic buckle is provided on the DIP switch. When the elastic buckle is stuck in the reference part, it can The knob and the DIP switch are connected so that the DIP switch can rotate with the rotation of the knob. In order to prevent the elastic buckle from moving relative to the reference part, the reference part is set to a non-ring-mounted structure. At the same time, during the connection process between the two, since the reference part and the elastic buckle cannot be observed with the naked eye after the knob is covered on the dial switch, it takes a certain amount of time for the two to find the right position during the installation process before they can be installed together, which directly affects Installation efficiency.

Therefore, it is necessary to propose a knob assembly that can solve the problem that the existing knob assembly takes a long time to install during the installation process, resulting in low installation efficiency.

Contents of the invention

The object of the present invention is to provide a knob assembly and a household appliance that can make the knob and the dial switch have a reference during installation, so that the installation technician can clearly know the approximate position of the protrusion, and achieve the purpose of rapid installation.

To achieve this goal, the present invention adopts the following technical solutions:

A knob assembly is provided, including a knob and a DIP switch. The inner wall of the knob is provided with a plurality of elastic buckles. The outer wall of the DIP switch is provided with a plurality of buckles that cooperate with the elastic buckles. groove, and more than one reference portion is provided on the outer wall of the knob, and each reference portion is positioned opposite to one of the elastic buckles.

As a preferred solution of the present invention, a plurality of the elastic buckles are evenly distributed in the circumferential direction on the inner wall of the knob, and a plurality of the clamping grooves are evenly distributed in the circumferential direction on the outer wall of the dial switch.

As a preferred solution of the present invention, the knob includes a working part and a water collecting tray connected to the working part, and the water collecting tray is provided at an end of the working part close to the bottom of the DIP switch.

As a preferred solution of the present invention, the water receiving tray and the working part are integrally formed.

As a preferred solution of the present invention, the water receiving tray includes a first water retaining wall and a second water retaining wall, and the first water retaining wall is connected to the second water retaining wall and the working part respectively.

As a preferred embodiment of the present invention, the reference portion is provided on the outer side wall of the second water retaining wall.

As a preferred solution of the present invention, the angle between the second water retaining wall and the first water retaining wall is greater than or equal to 90°.

As a preferred solution of the present invention, the knob assembly further includes a water retaining ring, the water retaining ring is arranged in the mounting hole of the casing of the household appliance, and the free end of the water retaining ring extends into the water receiving pan to form a in the retaining channel.

The invention also provides a household appliance, which includes the above-mentioned knob assembly and a casing, and the casing is provided with a mounting hole.

As a preferred solution of the present invention, a plurality of stabilizing protrusions for preventing the knob from shaking are provided in the mounting hole; the plurality of stabilizing protrusions are evenly distributed on the inner side wall of the mounting hole in the circumferential direction.

Beneficial effects of the present invention:

In the knob assembly provided by the present invention, no less than one reference part is provided on the outer wall of the knob, and each reference part is arranged opposite to an elastic buckle. When installing the elastic buckle and the card slot, you only need to align the reference part with the card slot before installation, and directly press the knob to complete the installation task of the knob assembly. Compared with the existing technology, the installer no longer needs to Turn the knob to observe the specific position of the elastic buckle, and then align the elastic buckle with the slot. This saves the installer the time required to install the knob assembly.

When installing the knob assembly of the household appliance provided by the present invention, due to the existence of the reference portion, the installer can obtain the approximate position of the elastic buckle of the knob, thereby quickly aligning the buckle and the slot to achieve rapid installation.

Description of the drawings

Figure 1 is a schematic structural diagram of a knob installed on a housing according to an embodiment of the present invention;

Figure 2 is a partial enlarged view of A in Figure 1;

Figure 3 is a schematic structural diagram of a knob assembly installed on the housing of a household appliance provided by an embodiment of the present invention;

Figure 4 is a partial enlarged view of B in Figure 3;

Figure 5 is an exploded schematic diagram of a knob assembly installed on the housing of a household appliance provided by an embodiment of the present invention;

Figure 6 is a schematic structural diagram of a household appliance provided by an embodiment of the present invention.

In the picture:

1. Knob; 11. Working part; 111. Elastic buckle; 12. Water tray; 121. First water retaining wall; 122. Second water retaining wall; 123. Reference part; 2. DIP switch; 21. Card slot; 3. Water retaining ring; 4. Shell; 41. Installation hole; 411. Stabilizing bump; 5. PCB board; 6. Fixed back shell; 7. Display; 8. Screws.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

This embodiment provides a knob assembly that can be installed quickly, saving installation time.

As shown in Figure 1-4, the knob assembly includes a knob 1 and a DIP switch 2. A plurality of elastic buckles 111 are provided on the inner wall of the knob 1, and a plurality of elastic buckles 111 are provided on the outer wall of the DIP switch 2. There are two slots 21 that cooperate with the elastic buckle 111. More than one reference portion 123 is provided on the outer wall of the knob 1, and each reference portion 123 is directly opposite to an elastic buckle 111. DIP switch 2 is set on PCB board 5. When installing the elastic buckle 111 and the slot 21, you only need to align the reference portion 123 with the slot 21 before installation, and directly press the knob 1 to complete the installation task of the knob assembly. Compared with the existing technology, it does not require The user then needs to turn the knob 1 and observe the specific position of the elastic buckle, and then align the elastic buckle with the slot 21 . This saves the user the time required to install the knob assembly.

It should be noted that the inner wall of the knob 1 has a plurality of elastic buckles 111 evenly distributed in the circumferential direction, and the outer wall of the dip switch 2 has a plurality of slots 21 evenly distributed in the circumferential direction (refer to Figure 5). The number of elastic buckles 111 in this embodiment is three, correspondingly, the number of slots 21 is also three, and the number of reference parts 123 is preferably three in this embodiment, that is, each reference part The reference portion 123 faces an elastic buckle, and the reference portion 123 is also circumferentially arranged on the outer wall of the knob 1 . The reference portion 123 can be a groove or a protrusion, as long as it can face the elastic buckle 111 to achieve the purpose of quickly installing the knob assembly.

As shown in FIGS. 1 and 2 , in this embodiment, the knob 1 includes a working part 11 and a water collecting tray 12 connected to the working part 11 . The water collecting tray 12 is provided at an end of the working part 11 close to the bottom of the DIP switch 2 . Since the knob 1 is arranged on the inclined side wall of the household appliance, when the household appliance is a cleaning appliance, water will often flow into the knob assembly and affect the operation of the knob assembly. In this embodiment, the water tray 12 is provided to block the smooth operation of the knob assembly. The water at the bottom of the knob 1 flows into the working part 11 to prevent the water from flowing onto the PCB board 5 .

Specifically, as shown in FIG. 2 , the water receiving tray 12 includes a first water blocking wall 121 and a second water blocking wall 122 . The first water blocking wall 121 is connected to the second water blocking wall 122 and the working part 11 respectively. The angle between the second water retaining wall 122 and the first water retaining wall 121 is greater than or equal to 90°. That is, the free end of the second water retaining wall 122 extends in a direction away from the working part 11 . This arrangement can greatly increase the water receiving area of the water receiving tray 12 and improve the waterproofness of the knob 1 . It should be noted that the water receiving tray 12 and the working part 11 are integrally formed. This arrangement can ensure that the connection between the water receiving tray 12 and the working part 11 will not leak, and there is no need to add a waterproof structure at the connection. The reference portion 123 is provided on the outer wall of the second water blocking wall 122 .

As shown in Figure 2, the knob assembly also includes a water retaining ring 3, wherein the water retaining ring 3 is arranged on the housing 4 of the household appliance, and the free end of the water retaining ring 3 extends into the barrier formed by the water receiving tray 12 of the knob 1. It is installed in the water tank and is suspended in the air, that is, the free end of the water retaining ring 3 is not in contact with the inner wall of the water retaining water tank. The water retaining ring 3 and the water receiving pan 12 cooperate to block the water flowing in from the installation hole 41 to prevent water from flowing out of the water receiving pan 12 or splashing out of the water receiving pan 12 .

This embodiment also provides a household appliance, as specifically shown in Figures 5 and 6. The household appliance includes the above-mentioned knob assembly. The household appliance can be a washing machine or a kitchen water heater (i.e. kitchen treasure). The household appliance also includes a casing 4. The casing 4 is provided with a mounting hole 41 that can pass through the knob 1. The mounting hole 41 extends toward the inside of the casing 4 and is provided with the above-mentioned water retaining ring 3. The knob 1 and the casing 4 are arranged vertically, but the casing 4 The portion of the setting knob 1 is inclined relative to the horizontal plane.

Since the part of the housing 4 where the knob 1 is installed is tilted relative to the horizontal plane, the knob 1 will be in close contact with part of the side wall of the installation hole 41 due to the influence of gravity, resulting in larger gaps in other locations, making it easier for water to flow into the installation hole. 41, in order to solve the above problems, as shown in Figure 5, the housing 4 also includes a plurality of stabilizing protrusions 411 for preventing the knob 1 from shaking; the multiple stabilizing protrusions 411 are evenly distributed in the circumferential direction in the mounting holes 41 or the water retaining ring 3 on the inner wall.

A plurality of stabilizing protrusions 411 are evenly distributed in the circumferential direction on the inner wall of the mounting hole 41 or the water retaining ring 3 , so that the knob 1 can be supported by the stabilizing protrusions 411 in the circumferential direction, thereby keeping the knob 1 in contact with the mounting hole 41 in the circumferential direction. The gap is uniform. Compared with the existing technology, the stabilizing protrusion 411 will not cause an excessive gap so that external water can easily enter the installation hole 41, nor will it affect the rotation of the knob 1 due to an excessively small gap. It should be noted that the shape of the stabilizing protrusion 411 is not particularly limited in this embodiment, but it should not affect the rotation of the knob 1 .

As shown in Figure 5, the household appliance also includes a display screen 7 and a fixed rear shell 6 connected to the shell 4. The display screen 7 is pasted or clamped on the end of the knob 1 that does not extend into the shell 4. Specifically, through a double-sided It can be fixed with adhesive or snap-fastened with connecting buckles. The display screen 7 is mainly used to display brightness and is used to remind the user that the household appliance is in a power-on state. The fixed back shell 6 is fixed on the shell 4 through screws 8. The fixed back shell 6 and the shell 4 form a receiving cavity in which the knob assembly can be placed. The PCB board 5 is fixed on the fixed back shell 6 through screws 8. This structure can hold the knob assembly. Fixed on the inner side wall of shell 4.

The household appliance provided by this embodiment includes the above-mentioned knob assembly. Since the knob assembly can achieve rapid assembly, the household appliance can also achieve rapid assembly.

Note that the basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other features. Various changes and modifications may be made within the scope of the claimed invention, which is defined by the appended claims and their equivalents.

Claims (4)

1. The knob assembly is characterized by comprising a knob (1) and a dial switch (2), wherein a plurality of elastic buckles (111) are arranged on the inner side wall of the knob (1), a plurality of clamping grooves (21) which are matched with the elastic buckles (111) one by one are arranged on the outer side wall of the dial switch (2), more than one reference part (123) is arranged on the outer side wall of the knob (1), and each reference part (123) is opposite to one elastic buckle (111);

the knob (1) comprises a working part (11) and a water receiving disc (12) connected with the working part (11), wherein the water receiving disc (12) is arranged at one end, close to the bottom of the dial switch (2), of the working part (11);

the water receiving disc (12) comprises a first water retaining wall (121) and a second water retaining wall (122), the first water retaining wall (121) is respectively connected with the second water retaining wall (122) and the working part (11), and an included angle between the second water retaining wall (122) and the first water retaining wall (121) is more than or equal to 90 degrees;

the reference part (123) is arranged on the outer side wall of the second water retaining wall (122);

a plurality of elastic buckles (111) are circumferentially and uniformly distributed on the inner side wall of the knob (1), and a plurality of clamping grooves (21) are circumferentially and uniformly distributed on the outer side wall of the dial switch (2);

the knob assembly further comprises a water retaining ring (3), the water retaining ring (3) is arranged in a mounting hole (41) of a shell (4) of the household appliance, and the free end of the water retaining ring (3) stretches into a water retaining groove formed by the water receiving disc (12).

2. The knob assembly according to claim 1, wherein the water pan (12) is integrally formed with the working portion (11).

3. A household appliance, characterized by comprising a knob assembly according to claim 1 or 2, and further comprising a housing (4), said housing (4) being provided with mounting holes (41).

4. A household appliance according to claim 3, wherein a plurality of stabilizing protrusions (411) for preventing the knob (1) from shaking are provided in the mounting hole (41); the stabilizing protrusions (411) are circumferentially and uniformly distributed on the inner side wall of the mounting hole (41).