CN219204996U - Household appliance waterproof control structure and household appliance - Google Patents

Abstract

The utility model provides a waterproof control structure of a household appliance, which comprises a control panel provided with keys, a control element matched with the keys to realize touch control, and a sealing shell arranged on the inner side of the control panel, wherein the control element comprises a key support arranged in the inner cavity of the sealing shell and a charged component connected with the key support.

Description

Household appliance waterproof control structure and household appliance

Technical Field

The utility model relates to the technical field of household appliances, in particular to a household appliance waterproof control structure and a household appliance.

Background

The existing control boxes of various household appliances are indispensable to various keys for realizing on-off of a switch or selecting a preset program in a machine, and the keys commonly used at present are usually a touch-sensitive key and a key which is turned on and off by using a light touch switch. For the physical key of the on-off of the tact switch, in order to set the physical key, a key hole needs to be formed in a physical key area corresponding to the control box, the physical key is arranged in the hole, and pressure is applied to the tact switch through the physical key, so that the on-off function is realized. However, during the use of the household appliance, water may enter the control box through the physical key hole, and contact with the electrified components of the control part, such as the PCB board, the connection terminal, etc., which may cause burning of the machine or electric shock to the user.

In order to realize the waterproof function of the physical key, the following three methods are commonly used in the prior art: 1. sticking a plastic paste (PC or PET film) by using double faced adhesive tape to cover the whole human-computer interaction interface; 2. using a plastic shell, and packaging the control part electrified part into the plastic shell by using hot melt adhesive; 3. a layer of profiling soft rubber (EPDM or silica gel, etc.) is used between the physical key and the control part. Above-mentioned 1 st makes water unable through entity button hole entering control box inside and reach the water-proof effects, and 2 nd and 3 rd kind are after water passes through entity button hole, can't contact the electrified part of control portion for water reaches the water-proof effects through the mode of other safe positions outflow. However, the mode 1 uses double faced adhesive tape to paste the plastic paste (PC or PET film) to cover the whole man-machine interaction interface, the method is a relatively simple scheme, and because the method is low in cost, most of the method is used in low-end household appliances, meanwhile, the keys are hidden under the plastic paste, physical keys cannot be seen, the texture of the whole machine is reduced, and because the plastic paste is pasted on a control box, the key positions cannot be accurately positioned, and the touch feeling of the keys is reduced due to the influence of the pasted plastic paste. The 2 nd mode of using the plastic casing, because the electrified part of control is encapsulated in the plastic casing through hot melt adhesive, this kind of mode needs to use professional equipment encapsulating, can't modify after the electrified part of control is glued, and the encapsulating solidifies the back, and the heat that the control produced can't in time give off, needs extra outflow heat dissipation space, is inapplicable to the control box that the space is less. The 3 rd type is that a layer of profiling soft rubber is arranged between the physical key and the control part, so that the feedback of the physical key is poor, and in the extreme case, fingers cannot sense whether the physical key triggers a switch or not, and a feedback structure is additionally designed for the physical key, or a larger trigger switch is used for enhancing the key feedback. It is therefore necessary to design a waterproof control structure for a home appliance to solve the problems of the waterproof manner described above.

Disclosure of Invention

In order to solve the technical problems, the utility model protects the control element through the sealing shell, and forms structural waterproof after the sealing shell, the key support and the electrified component are assembled, and the specific technical scheme is as follows:

the utility model provides a domestic appliance waterproof control structure, is including being provided with the control panel of button and with the control element of button cooperation in order to realize the touch-control, still including setting up at the inboard sealed casing of control panel, control element is including setting up at the key support of sealed casing inner chamber and the electrified part that links to each other with the key support, the key support includes the touch-control end, and this touch-control end passes sealed casing and button cooperation, wherein, the break-make of key support and electrified part is realized to the key drive touch-control end.

Preferably, the control panel is provided with a key hole for installing a key, and the inner side of the control panel is also provided with a limit boss for fixing the key.

Preferably, the part of the key, which is attached to the inner side of the control panel, is provided with a first waterproof rib extending along the circumferential direction of the key.

Preferably, the sealing shell comprises a bottom plate and a plurality of side plates, wherein the bottom plate is parallel to the control panel, and the side plates are vertically distributed around the periphery of the bottom plate to form an open tubular structure.

Preferably, a plugging block is arranged on one side of the bottom plate, which is close to the control panel, and a plugging hole matched with the plugging block is formed in the control panel.

Preferably, the key support comprises a supporting frame, an elastic contact piece extending inwards from a frame of the supporting frame and a contact post arranged on the elastic contact piece, and the contact post can penetrate through the bottom plate to be matched with the key.

Preferably, the bottom plate is provided with a through hole matched with the contact column, and one side of the bottom plate, which is close to the control panel, is provided with second waterproof ribs distributed along the periphery of the through hole.

Preferably, the charging component comprises a substrate and a key switch arranged on the substrate and used for being connected with the elastic contact piece.

Preferably, a contact part is arranged on one side of the elastic contact piece opposite to the key switch, the contact column is arranged on the other side of the elastic contact piece, and after assembly, the contact column is not coaxial with the key support.

A household appliance comprises the household appliance waterproof control structure.

According to the technical scheme, the utility model has the following beneficial effects:

1. according to the utility model, the key support is driven by the key to act so as to realize the on-off of the key support and the charged component, the key support and the charged component are arranged in the sealing shell, the waterproof effect of the key support and the charged component is realized by utilizing the sealing shell, and the touch end of the key support passes through the sealing shell and cannot influence the touch of the key and the key support.

2. According to the household electrical appliance, the first waterproof rib is arranged at the joint part of the key and the control panel, the second waterproof rib is arranged at one side of the bottom plate close to the control panel, and water flow entering the control panel through the key hole can be led out of the sealing shell by utilizing the first waterproof rib and the second waterproof rib no matter when the household electrical appliance structure is in the overhead state or the front state, so that the water flow cannot contact with the control element, and adverse effects on the control element are avoided.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic view of the structure of section A-A of FIG. 2;

FIG. 4 is a schematic view of the control structure of FIG. 2 at another angle;

fig. 5 is a schematic view of the structure of section B-B in fig. 4.

In the figure: 10. a key; 110. a first waterproof rib; 20. a control panel; 210. a key hole; 220. a limit boss; 230. a plug hole; 310. a key support; 311. a support frame; 312. an elastic contact; 313. a contact column; 320. a charging member; 321. a substrate; 322. a key switch; 40. a seal housing; 410. a bottom plate; 411. a plug block; 412. a second waterproof rib; 420. and a side plate.

Detailed Description

The present utility model will be described in detail below with reference to the drawings and detailed embodiments, and before the technical solutions of the embodiments of the present utility model are described in detail, the terms and terms involved will be explained, and in the present specification, the components with the same names or the same reference numerals represent similar or identical structures, and are only limited for illustrative purposes.

Referring to fig. 1, 2 and 4, a waterproof control structure for a household appliance comprises a control panel 20, a key 10 arranged on the control panel 20, a control element matched with the key to realize touch control, and a sealing shell 40 arranged on the inner side of the control panel 20 and used for installing the control element, wherein the control element comprises a key support 310 and a charging component 320, the key support 310 is arranged in an inner cavity of the sealing shell 40 and can be contacted with the key 10 to realize on-off with the charging component 320 under the touch control of the key 10, and the charging component 320 is also arranged in the inner cavity of the sealing shell 40.

The utility model can avoid the problems of poor touch feedback and poor effect of the keys caused by the traditional way of using double-sided adhesive to paste and plastic to cover the whole man-machine interaction interface and arranging profiling soft adhesive between the keys and the control part by utilizing the form of direct contact between the keys 10 and the touch end of the key support 310, and meanwhile, the scheme of packaging the electrified part by using hot melt adhesive is abandoned, and the problems of incapability of changing after solidification of the electrified part and poor heat dissipation in the follow-up working process can be avoided.

It should be noted that, the sealing housing 40 is made of transparent or semitransparent material, the LED lamp on the PCB may guide light to the outside through the positioning column on the sealing housing 40, meanwhile, the key support 310 and the charging component 320 may be fixed in the inner cavity of the sealing housing 40 through screws, so as to fix the control element, and of course, the key support 310 and the charging component 320 may also be fastened in the inner cavity of the sealing housing 40 through a buckle.

As a preferred technical scheme of the present utility model, the control panel 20 is provided with a key hole 210, the key hole 210 is used for installing the key 10, and further, after the key 10 is installed on the key hole 210, in order to effectively fix the key 10, a limit boss 220 for fixing the key 10 is arranged on the inner side (i.e. the side opposite to the man-machine interaction interface) of the control panel 20, and the limit boss 220 can support the bottom of the key 10, so as to fix the key 10.

Meanwhile, in order to further improve the waterproof effect of the key 10, a first waterproof rib 110 extending along the circumferential direction of the key 10 is provided at a portion where the key 10 is attached to the inner side of the control panel 20, so that the first waterproof rib 110 is used to block the water flow entering through the key hole 210, thereby realizing the waterproof effect.

Further, the sealing housing 40 includes a bottom plate 410 and side plates 420, the bottom plate 410 is parallel to the control panel 20, the number of the side plates 420 is plural, and in the present utility model, the number of the side plates 420 is four, the four side plates are vertically distributed around the bottom plate, and are combined with the bottom plate 410 to form an open tubular structure, which is a main body structure of the sealing housing 40, and the key support 310 and the charging component 320 can be installed in the inner cavity of the sealing housing 40 through openings.

As a preferred technical solution of the present utility model, the bottom plate 310 is provided with the plugging block 411 near one side of the control panel 20, and correspondingly, the control panel 20 is provided with the plugging hole 230 matching with the plugging block 411, so that when the seal housing 40 is installed, the seal housing 40 can be suspended inside the control panel 20 by using the matching of the plugging block 411 and the plugging hole 230, so that the key support 310 and the charging member 320 are far away from the key hole 210, water and the charging member 320 can be separated, key positions can be more conveniently and flexibly set, and the cantilever structure of the seal housing 40 can have a certain elasticity, so that better rebound feedback of the key 10 is provided.

Further, the key support 310 includes a supporting frame 311, an elastic contact piece 312 and a contact post 313, the supporting frame 311 is used as a main supporting structure of the key support 310, the elastic contact piece 312 extends inward from a frame of the supporting frame 311, the contact post 313 is disposed on the elastic contact piece 312 and can penetrate through the bottom plate 410 and cooperate with the key 10 to achieve a touch effect, specifically, the contact post 313 is disposed in a cavity formed by the key 10, the key 10 can protect the contact post 313, so that water flows from the first waterproof rib 110 and the side wall of the sealing housing 40 and cannot contact with the key support 310.

The touch column 313 is the touch end of the key support 310, and the key 10 is clamped between the control panel 20 and the seal housing 40 and is supported by the touch column 313, so that the key support 310 can be touched by the key 10.

Further, the bottom plate 410 is provided with a through hole matched with the contact post 313, the contact post 313 can pass through the through hole to be matched with the key 10, one side of the bottom plate 410 close to the control panel 20 is provided with second waterproof ribs 412 distributed along the periphery of the through hole, and the second waterproof ribs 412 can prevent external water from entering the sealed shell 40 to damage the key support 310 and the electrified component 320 inside, and also play a role in guiding the contact post 313.

In the following, taking fig. 5 as an example to illustrate the waterproof effect of the present utility model, when the waterproof control structure of the household appliance is in an overhead state, i.e., the key 10 is perpendicular to the horizontal plane, water flows into the control panel 20 through the key hole 210, and flows through the first waterproof rib 110 to the outer wall of the sealing case 40 due to the existence of the first waterproof rib 110, and at the same time, the water flowing through the first waterproof rib 110 flows toward the through hole, but due to the existence of the second waterproof rib 412, the water is blocked back to the side wall of the sealing case 40 and finally flows out along the outer wall of the sealing case 40, and cannot contact with the key holder 310 and the charging member 320 inside the sealing case 40; when the waterproof control structure of the household appliance is placed at the front, i.e., the key 10 is parallel to the horizontal plane, and water flows through the first waterproof rib 110 and the side wall of the sealing case 40 under the action of self gravity when water enters the inside of the control panel 20 through the key hole 210, it is also not in contact with the key holder 310 and the charging member 320.

Further, the charging unit 320 includes a base 321 and a key switch 322, the key switch 322 is disposed on the base 321, when the elastic contact piece 312 contacts with the key switch 322 under the pressure of the contact post 313, the energizing effect can be achieved, and when the pressure is removed, the elastic contact piece 312 is disconnected from the key switch 322, so as to achieve the on-off effect.

As a preferred technical solution of the present utility model, a contact portion is disposed on one side of the elastic contact piece 312 opposite to the key switch 322, the aforementioned contact post 313 is disposed on the other side of the elastic contact piece 312, and after assembly, the contact post 313 is not coaxial with the key switch 322, i.e. the contact post 313 is disposed offset from the axial direction of the elastic contact piece 312, while the key 10 is disposed opposite to the contact post 313, and the purpose of the eccentric disposition of the contact post 313 is to make the key 10 not coaxial with the key switch 322, so as to obtain better touch feedback.

It should be noted that, the number of the keys 10 in the present utility model is not limited to the number shown in the drawings, and the number of the corresponding contact posts 313, the corresponding elastic contact pieces 312, and the corresponding key switches 322 is not limited to the number of the keys 10.

The utility model also discloses a household appliance, which comprises the household appliance waterproof control structure, so that the household appliance has a waterproof effect and better key touch feedback, and the problems of the traditional control structure are solved.

Taking fig. 3 and 5 as an example for explanation, fig. 5 is a schematic view of section B-B, when the man-machine interface is overhead, water drops onto the control panel and enters the surface of the sealing shell through the key hole, the sealing shell can prevent water from entering the inside of the shell, and the water cannot contact with the key bracket and the electrified part; when the man-machine interaction interface is in front, water flows downwards along the edges of the keys, finally drops to the lower half of the sealing shell, and the water is left along the sealing shell and cannot contact the electrified components.

The above-described embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims (10)

1. The utility model provides a household appliance waterproof control structure, is including being provided with control panel (20) of button (10) and with the control element of button (10) cooperation in order to realize the touch-control, its characterized in that still including setting up sealed casing (40) inboard at control panel (20), control element is including setting up in key support (310) of sealed casing (40) inner chamber and with electrified part (320) that key support (310) link to each other, key support (310) include the touch-control end, and this touch-control end passes sealed casing (40) and button (10) cooperation, wherein, button (10) drive touch-control end realization key support (310) and electrified part (320) break-make.

2. The waterproof control structure of a household appliance according to claim 1, wherein the control panel (20) is provided with a key hole (210) for installing the key (10), and a limit boss (220) for fixing the key (10) is further arranged on the inner side of the control panel (20).

3. The waterproof control structure of the household appliance according to claim 2, wherein the portion of the key (10) attached to the inner side of the control panel (20) is provided with a first waterproof rib (110) extending along the circumference of the key (10).

4. The waterproof control structure of a household appliance according to claim 1, wherein the sealing case (40) comprises a bottom plate (410) disposed in parallel with the control panel (20) and a plurality of side plates (420) vertically disposed around the periphery of the bottom plate to form an open tubular structure.

5. The waterproof control structure for a household appliance according to claim 4, wherein a plug-in block (411) is arranged on one side of the bottom plate (410) close to the control panel (20), and a plug-in hole (230) matched with the plug-in block (411) is formed in the control panel (20).

6. The waterproof control structure of a household appliance according to claim 4, wherein the key holder (310) comprises a supporting frame (311), an elastic contact piece (312) extending inward from a rim of the supporting frame (311), and a contact post (313) disposed on the elastic contact piece (312), and the contact post (313) can pass through a bottom plate (410) to be used with the key (10).

7. The waterproof control structure for a household appliance according to claim 6, wherein the bottom plate (410) is provided with a through hole matched with the contact post (313), and the bottom plate (410) is provided with second waterproof ribs (412) distributed along the periphery of the through hole at one side close to the control panel (20).

8. The waterproof control structure of a household appliance according to claim 6, wherein the charging member (320) comprises a base plate (321) and a key switch (322) provided on the base plate (321) for switching on and off the elastic contact piece (312).

9. The waterproof control structure for a household appliance according to claim 8, wherein a contact portion is provided on a side opposite to the push switch (322) with respect to the elastic contact piece (312), and the elastic contact piece (312) is provided with a contact portion according to another side claim

The contact post (313) is arranged, and after assembly, the contact post (313) is not coaxial with the key switch (322).

10. A household appliance comprising the household appliance waterproof control structure according to any one of claims 1 to 9.

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