CN217643328U

CN217643328U - Touch sensing assembly, touch panel and household appliance

Info

Publication number: CN217643328U
Application number: CN202221729001.6U
Authority: CN
Inventors: 谢浙; 劳承云; 张秋俊; 唐金鹏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-21
Anticipated expiration: 2032-07-04

Abstract

The utility model provides a touch-sensitive subassembly, touch panel and domestic appliance, wherein, the touch-sensitive subassembly, include: the supporting piece is provided with an accommodating hole, and the accommodating hole corresponds to the touch key area; the response metal sets up in the accommodation hole, and wherein, be provided with the fretwork groove on support piece's the surface, the fretwork groove sets up the outside at the accommodation hole. In the above structure, a hollow groove is provided around the accommodation hole, and a dielectric constant of the medium in the hollow groove is smaller than a dielectric constant of a material of the accommodation hole. When the hand of the user is close to the induction metal, the response of the touch area at the accommodating hole is more sensitive, and the response of the part of the hollow groove outside the touch area is insensitive, so that the condition that the user touches the induction metal by mistake outside the touch area is prevented.

Description

Touch sensing assembly, touch panel and household appliance

Technical Field

The utility model relates to an electrical apparatus touch control technical field, concretely relates to touch-sensitive subassembly, touch panel and domestic appliance.

Background

The touch keys are more and more widely applied to domestic appliances, and more detailed requirements are also put forward in the technology. In particular, the panel needs to be sensitive enough within the key area, but hopefully unresponsive outside the key area to prevent false triggering. In addition, in order to ensure the display effect of the touch key, light cannot be shielded by the spring, and therefore the inner diameter of the spring needs to be larger than that of the touch key, namely the touch key is located in an area surrounded by the spring. However, the range of the spring is larger than that of the key area, which easily causes the false triggering of touch outside the key area or the middle area between two key areas is recognized as being pressed simultaneously.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the touch button among the prior art and taking place the defect that the mistake touched easily to a touch-sensitive subassembly, touch panel and domestic appliance are provided.

In order to solve the above problem, the utility model provides a touch-sensitive component, include: the supporting piece is provided with an accommodating hole, and the accommodating hole corresponds to the touch key area; the response metal sets up in the accommodation hole, and wherein, be provided with the fretwork groove on support piece's the surface, the fretwork groove sets up the outside at the accommodation hole.

Optionally, the accommodating hole is multiple, and the hollow groove passes through a space between adjacent accommodating holes.

Optionally, the accommodating hole is a circular hole, the hollow groove is an annular groove, and the hollow groove surrounds the accommodating hole.

Optionally, the inductive metal is a spring.

Optionally, a positioning step is provided on a hole wall at the opening of the receiving hole, and an end of the spring abuts against the positioning step.

Optionally, the support is made of ABS plastic.

Optionally, the depth of the hollow groove is more than 2 mm; and/or the width of the hollow groove is more than 2 mm.

The utility model also provides a touch panel, include: the touch sensing assembly is the touch sensing assembly; the panel is arranged above the touch sensing assembly, a touch key area is formed on the panel, and the touch key area is arranged corresponding to the accommodating hole of the touch sensing assembly; the circuit board is abutted with the induction metal.

Optionally, the panel includes a transparent plate and a light-shielding layer disposed below the transparent plate, and the touch key region is formed on the light-shielding layer, wherein the sensing metal is a spring, and the touch key region is located in a region surrounded by the spring.

The utility model also provides a domestic appliance, including foretell touch panel.

The utility model has the advantages of it is following:

utilize the technical scheme of the utility model, be provided with the fretwork groove around the accommodation hole, the medium in the fretwork groove is the air, and its dielectric constant will be less than the dielectric constant of the material of accommodation hole. When the hand of a user is close to the induction metal, the response of the touch area at the accommodating hole is more sensitive, and the response of the part of the hollow groove outside the touch area is insensitive, so that the condition that the user mistakenly touches the touch area is prevented. Consequently the technical scheme of the utility model the touch button among the prior art defect that the mistake touched has taken place easily has been solved.

Drawings

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

Fig. 1 shows an exploded schematic view of a touch panel of the present invention;

FIG. 2 shows an enlarged schematic view at A in FIG. 1; and

fig. 3 shows a schematic top view of the touch key area and springs of the touch panel of fig. 1.

Description of reference numerals:

10. a support member; 20. an accommodation hole; 21. positioning a step; 30. sensing a metal; 40. hollowing out the grooves; 100. a touch sensing component; 200. a panel; 201. a transparent plate body; 202. a light-shielding layer; 300. and touching the key area.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of 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 all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the touch sensing assembly of the present embodiment includes a support 10 and a sensing metal 30. The support 10 is provided with an accommodating hole 20, and the accommodating hole 20 corresponds to the touch key area 300. The sensing metal 30 is disposed in the receiving hole 20. Further, a hollow groove 40 is provided on an outer surface of the support member 10, and the hollow groove 40 is disposed outside the receiving hole 20.

By using the technical solution of the present embodiment, the hollow groove 40 is disposed around the accommodating hole 20, and the medium in the hollow groove 40 is air, and the dielectric constant of the medium is smaller than that of the material of the accommodating hole 20. When the hand of the user approaches the sensing metal 30, the response of the touch area at the receiving hole 20 is more sensitive, and the response of the part of the hollow groove 40 outside the touch area is insensitive, so that the condition that the user touches the touch area by mistake is prevented. Therefore, the technical scheme of the embodiment overcomes the defect that the touch key in the prior art is easy to touch by mistake.

It should be noted that the working principle of the touch sensing assembly in this example is that when a hand of a user approaches the sensing metal 30, a capacitance value between the hand and the sensing metal 30 changes, the capacitance value change of the sensing metal 30 is transmitted to the circuit board, and the control system determines whether the touch key area 300 is touched. In addition, the dielectric constant between the hand and the sense metal 30 affects the response speed.

It should be noted that the above-mentioned "outer surface of the support 10" refers to a surface of the support 10 facing a user after assembly, and the surface is usually connected with a panel or a light shielding layer.

Further, the receiving hole 20 in the present embodiment corresponds to a touch area, and the portion outside the receiving hole 20, that is, the portion of the hollow groove 40, corresponds to a non-touch area.

The dielectric constants of the common materials are listed below for illustration:

in combination with the above table, it can be seen that the dielectric constant of air is 1, which is significantly less than the node constants of other common materials. I.e., the sensitivity of the response at the hollowed-out groove 40 is significantly less than the corresponding sensitivity at the receiving hole 20.

In addition, the hollow-out grooves 40 form an air isolation belt, which does not increase any material cost for the supporting member 10, so the solution of the embodiment also has the advantage of low cost.

As shown in fig. 2, in the present embodiment, the receiving hole 20 is multiple, and the hollow groove 40 passes through a space between adjacent receiving holes 20. Specifically, the plurality of receiving holes 20 correspond to the plurality of touch key areas 300, and the sensing metal 30 is disposed in each receiving hole 20. The area between adjacent receiving holes 20 is also a non-touch area.

Specifically, the hollow groove 40 passes through an area between two adjacent receiving holes 20, so that a non-touch area between two adjacent touch key areas 300 is isolated by the hollow groove 40. The user is prevented from being recognized as pressing one key or pressing two keys at the same time when touching an area between two adjacent touch key areas 300.

Further, the specific number and arrangement of the receiving holes 20 can be designed by those skilled in the art according to the actual working requirement of the electrical appliance.

As shown in fig. 2, in the present embodiment, the receiving hole 20 is a circular hole, the hollow groove 40 is an annular groove, and the hollow groove 40 surrounds the receiving hole 20. Specifically, the touch key in the present embodiment is designed to be circular, and accordingly, the receiving hole 20 is a circular hole. The annular cutout 40 separates the region outside the receiving bore 20.

In some embodiments, not shown, the hollowed-out groove 40 may also take other forms, for example, the hollowed-out groove 40 may include a plurality of spaced-apart groove segments that circumferentially surround the receiving hole 20.

Of course, the specific shape of the receiving hole 20 can be adaptively adjusted by those skilled in the art according to the shape of the touch key.

Preferably, the inductive metal 30 in this example is a spring. The lower end of the spring is connected to the bottom circuit board and the upper end of the spring extends to the opening of the receiving hole 20. When a user touches the electric appliance, the capacitance between the hand and the spring is changed, and the electric appliance is identified and judged by the control system, so that the electric appliance is correspondingly controlled.

Preferably, a positioning step 21 is provided on the hole wall at the opening of the receiving hole 20, and the end of the spring abuts against the positioning step 21. Specifically, a ring-shaped projection extends inward from the side wall of the opening of the receiving hole 20, and forms the above-described positioning step 21. The end of the spring can be abutted against the inner side of the positioning step 21, and the effect of limiting the spring is achieved.

Preferably, the support 10 is made of ABS plastic. As can be seen from the above table, the dielectric constant of the ABS plastic is significantly greater than that of air, i.e., the dielectric constant of the hole wall of the accommodating hole 20 is greater than that of the area inside the hollow groove 40. The accommodating hole 20 corresponds to the touch key area 300, and the hollow groove 40 corresponds to a non-touch area, that is, the response of the touch key area 300 is more sensitive than that of the non-touch area, so as to achieve the effect of preventing accidental touch.

Of course, the support member 10 may be made of other conventional materials.

Preferably, the depth of the hollowed-out grooves 40 is more than 2 mm. Specifically, the depth of the hollow-out groove 40 in the present embodiment is at least 2 mm, and the deeper the depth of the hollow-out groove 40, the more obvious the isolation effect, so as not to affect the structural integrity of the supporting member 10.

Preferably, the width of the hollow groove 40 is more than 2 mm. Specifically, the width of the hollow groove 40 in the present embodiment is at least 2 mm, and the wider the width of the hollow groove 40, the more obvious the isolation effect is, so as not to affect the appearance characteristics of the support 10.

As shown in fig. 1 and 2, the present embodiment also provides a touch panel including: touch-sensitive component 100, panel 200 and circuit board. The touch sensing assembly 100 is the touch sensing assembly described above. The panel 200 is disposed above the touch sensing assembly 100, a touch key area 300 is formed on the panel 200, and the touch key area 300 is disposed corresponding to the receiving hole 20 of the touch sensing assembly 100. The circuit board is disposed under the touch sensing assembly 100, and the sensing metal 30 abuts against the circuit board.

Specifically, the receiving hole 20 penetrates through the support 10, so that the lower end of the spring can be connected to the circuit board, and the optical fibers emitted from the light emitting element on the circuit board can illuminate the touch key area 300 through the receiving hole 20.

In this embodiment, the panel 200 may be a hard transparent plate, or may also be a transparent film.

As shown in fig. 1 and fig. 3, in the technical solution of this embodiment, the panel 200 includes a transparent plate 201 and a light shielding layer 202 disposed below the transparent plate 201, and the touch key area 300 is formed on the light shielding layer 202, wherein the sensing metal 30 is a spring, and the touch key area 300 is located in an area enclosed by the spring.

Specifically, the light-shielding layer 202 is made of an opaque flexible material and is attached to the back surface of the transparent plate 201. Preferably, the light-shielding layer 202 in this embodiment is black. The touch key area 300 is formed on the light shielding layer 202 by a silk-screen process, and the touch key area 300 forms a light transmission area, so that light emitted by the light-emitting element on the circuit board can irradiate on the transparent board 201 through the touch key area 300.

Specifically, the annular positioning step 21 provided at the side wall of the opening of the accommodation hole 20 described above forms the opening of the accommodation hole 20. Further, the touch key area 300 is circular, and the outer diameter thereof is slightly smaller than the inner diameter of the positioning step 21. The inner diameter of the spring is slightly larger than the inner diameter of the positioning step 21. Therefore, in a top view, the touch key area 300 is located in an area surrounded by the springs, so that light emitted from the circuit board is not shielded by the springs, and the display effect of the touch key area 300 is ensured.

The embodiment also provides a household appliance comprising the touch panel. The household appliances can be electric cookers, refrigerators, vertical air conditioners, air purifiers and the like. In addition, the touch remote controller in the household appliance can also adopt the structure of the touch sensing component.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A touch-sensitive assembly, comprising:

the touch key comprises a support (10), wherein a containing hole (20) is formed in the support (10), and the containing hole (20) corresponds to a touch key area (300);

an inductive metal (30) disposed within the receiving hole (20),

wherein, a hollow groove (40) is arranged on the outer surface of the support member (10), and the hollow groove (40) is arranged at the outer side of the accommodating hole (20).

2. The touch-sensitive assembly of claim 1, wherein the receiving holes (20) are plural, and the hollow grooves (40) pass through spaces between adjacent receiving holes (20).

3. The touch-sensitive assembly of claim 1, wherein the receiving hole (20) is a circular hole, the hollow-out groove (40) is an annular groove, and the hollow-out groove (40) surrounds the receiving hole (20).

4. The touch-sensitive assembly of any one of claims 1 to 3, wherein the sensing metal (30) is a spring.

5. The touch-sensitive assembly of claim 4, wherein a positioning step (21) is provided on a wall of the hole at the opening of the receiving hole (20), and an end of the spring abuts against the positioning step (21).

6. The touch-sensitive assembly of any one of claims 1 to 3, characterized in that the support (10) is made of ABS plastic.

7. The touch-sensitive assembly according to any one of claims 1 to 3, characterized in that the depth of the hollowed-out groove (40) is above 2 mm; and/or the width of the hollow-out groove (40) is more than 2 mm.

8. A touch panel characterized by comprising:

a touch-sensitive component (100), the touch-sensitive component (100) being the touch-sensitive component of any one of claims 1 to 7;

the panel (200) is arranged above the touch sensing assembly (100), a touch key area (300) is formed on the panel (200), and the touch key area (300) is arranged corresponding to the accommodating hole (20) of the touch sensing assembly (100);

a circuit board against which the induction metal (30) abuts.

9. The touch panel according to claim 8, wherein the panel (200) comprises a transparent plate (201) and a light shielding layer (202) disposed below the transparent plate (201), and the touch key region (300) is formed on the light shielding layer (202), wherein the sensing metal (30) is a spring, and the touch key region (300) is located in an area surrounded by the spring.

10. A household appliance characterized by comprising a touch panel as claimed in claim 8 or 9.