CN215990742U

CN215990742U - Touch button and refrigerator

Info

Publication number: CN215990742U
Application number: CN202121962718.0U
Authority: CN
Inventors: 罗运欢; 曹洁; 陈浩; 高超
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-08
Anticipated expiration: 2031-08-19

Abstract

The application provides a touch key and a refrigerator, which comprise a touch layer, a touch layer and a control layer, wherein the touch layer is provided with a first surface and a second surface which are oppositely arranged; the conductive piece is positioned in the connecting area, one end of the conductive piece is connected with the connecting area, and the other end of the conductive piece is used for being electrically connected with the circuit board; and the conductive layer is arranged on the second surface and covers the touch area, and the conductive layer is electrically communicated with the conductive piece. The touch key is not easy to generate abnormal key signals due to extrusion and folding like a flexible circuit board in the assembling process, and the reliability is higher. And the conductive piece connected to the connection area is positioned outside the touch area, and when the light source is arranged below the touch area, the light source can illuminate the touch area and does not map the projection of the conductive piece at the touch area, so that the problem of shadow in the touch area is avoided.

Description

Touch button and refrigerator

Technical Field

The application relates to the technical field of life electrical appliances, in particular to a touch key and a refrigerator.

Background

The capacitive touch key is a robust inductive switch and can provide reliable touch effect under the working conditions of strong vibration or sharp temperature change. The microwave oven is widely used in household appliances such as cooking ranges, refrigerators, microwave ovens and the like.

The existing touch key comprises a touch membrane, a flexible circuit board and a display control board, wherein the touch membrane is connected with the display control board through the flexible circuit board, and a touch signal is transmitted to the display control board, so that a spring key can be omitted, but the scheme has higher cost, the flexible circuit board cannot be extruded and folded in the assembling process, otherwise, the problem of abnormal key signal is easy to occur, the reliability is poor, and the production process is complex.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a touch key and a refrigerator, and aims to solve the problem that key signals are abnormal easily in the existing touch key.

In a first aspect, an embodiment of the present application provides a touch key, including:

the touch layer is provided with a first surface and a second surface which are oppositely arranged, the first surface is provided with a touch area, the second surface is provided with a connecting area, and the orthographic projection of the connecting area is positioned outside the orthographic projection of the touch area;

the conductive piece is positioned in the connecting area, one end of the conductive piece is connected with the connecting area, and the other end of the conductive piece is used for being electrically connected with the circuit board;

a conductive layer disposed on the second surface and covering the touch area, the conductive layer being in electrical communication with the conductive member.

Optionally, the touch key further includes a wire, and the conductive layer is electrically connected to the conductive member through the wire.

Optionally, the conductive wire is a silver paste wire.

Optionally, the conductive layer extends to the connection region and is in electrical communication with the conductive member.

Optionally, the conductive layer comprises a conductive oil.

Optionally, the conductive layer is transparent to light.

Optionally, the first surface is provided with a key pattern, and the key pattern is located in the touch area.

Optionally, one end of the conductive member is soldered to the circuit board.

Optionally, the touch key further comprises a substrate, a key through hole and a connecting through hole are formed in the substrate, the touch layer is arranged on the substrate, the touch area corresponds to the key through hole, the connecting area corresponds to the connecting through hole, and the conductive piece penetrates through the connecting through hole and is connected with the connecting area.

In a second aspect, an embodiment of the present application further provides a refrigerator, including the touch key as described above.

The touch key and the refrigerator provided by the embodiment of the application, the touch layer in the touch key is provided with a first surface and a second surface which are oppositely arranged, the first surface is provided with a touch area, the second surface is provided with a connection area, the orthographic projection of the connection area is set to be positioned outside the orthographic projection of the touch area, the conducting layer is arranged on the second surface and covers the touch area, one end of the conducting piece is connected with the connection area, the other end of the conducting piece is used for being electrically connected with the circuit board, the conducting layer is electrically conducted with the conducting piece, so that a touch signal can be sequentially conducted to the conducting layer and the conducting piece through the touch area, and the touch signal can be conducted to the circuit board through the conducting piece. The mode that adopts flexible circuit board transmission touch signal among the correlation technique has been replaced through the cooperation of this conducting layer and electrically conductive piece for the touch button that this application embodiment provided can not appear the unusual phenomenon of button signal because extrusion, folding easily like flexible circuit board in the assembling process, and the reliability is higher. And when the light source is arranged below the touch area, the light source can illuminate the touch area and cannot map the projection of the conductive piece at the touch area, so that the problem of shadow in the touch area cannot occur.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic structural diagram of a touch layer provided in an embodiment of the present application.

Fig. 2 is an exploded schematic view of a touch key provided in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a substrate according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, component, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the application provides a touch key and a refrigerator, and aims to solve the problem that key signals are abnormal easily in the existing touch key. This will be explained below with reference to the drawings.

The touch key provided by the embodiment of the application can be applied to a refrigerator, wherein the refrigerator can be a single-door refrigerator, a double-door refrigerator or a triple-door refrigerator. The refrigerator comprises a refrigerator door body, the touch key provided by the embodiment of the application can be arranged on the refrigerator door body, and the control on the temperature or the function of the refrigerator is realized through the touch key. Such as changes in refrigeration temperature, changes in freezing temperature, etc. Of course, the touch key may also be disposed at other positions of the refrigerator, such as on a refrigerator body, and the embodiment of the present application is not limited herein.

It should be noted that the touch key usually has a screen-printed pattern or text, and in the related art, there are two main implementation manners for the touch key on the refrigerator door. One is through installing the key spring additional in silk screen printing part below, go the triggering of response button through the spring, and this scheme must be that the size of spring button will be greater than the silk screen printing body, and otherwise the spring appears distortion, crooked etc. and all can lead to the spring to contact the silk screen printing part in the assembling process, and the touch button is under the effect that bottom lamp pearl was lighted, and the silk screen printing part will show the dark spot that appears unusually. Meanwhile, the size of the spring key is increased, and the design cost is also increased. The second scheme is that transparent touch diaphragm is directly adopted, the scheme includes touch diaphragm, flexible circuit board and apparent control board, the touch diaphragm passes through the flexible circuit board and is connected with apparent control board, gives apparent control board with touch signal transmission, just so can save the spring button, but this scheme cost is higher, and the flexible circuit board can not extrude, fold in assembling process, otherwise the unusual problem of button signal appears easily, the reliability is poor to the production process is complicated.

Based on this, please refer to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a touch layer provided in the embodiment of the present application, and fig. 2 is an exploded schematic diagram of a touch key provided in the embodiment of the present application. The touch key provided by the embodiment of the application comprises a touch layer 10, a conductive member 20 and a conductive layer 30, wherein the touch layer 10 has a first surface 11 and a second surface 12 which are oppositely arranged, the first surface 11 has a touch area 111, the second surface 12 has a connection area 121, and the positional relationship between the connection area 121 and the touch area 111 is set such that the orthographic projection of the connection area 121 is positioned outside the orthographic projection of the touch area 111. The conductive member 20 is disposed at the connection region 121, wherein one end of the conductive member 20 is connected to the connection region 121 and the other end of the conductive member 20 is used for electrical connection with the circuit board 40. The conductive layer 30 is disposed on the second surface 12 and covers the touch region 111, and the conductive layer 30 is electrically conductive to the conductive member 20. When a human body touches the touch area 111, the touch signal can be sequentially transmitted to the conductive layer 30 and the conductive piece 20 through the touch area 111, and the touch signal can be transmitted to the circuit board 40 through the conductive piece 20, and the mode of transmitting the touch signal by using a flexible circuit board in the related art is replaced by the matching of the conductive layer 30 and the conductive piece 20, so that the phenomenon of key signal abnormity is not easy to occur in the assembling process of the touch key provided by the embodiment of the application due to extrusion and folding like the flexible circuit board, the reliability is higher, the failure rate of later-stage keys is reduced, the problem of poor feasibility of the flexible circuit board is solved, and the cost is lower than that of the mode of using the flexible circuit board. Also, the orthographic projection of the connection region 121 is located outside the orthographic projection of the touch region 111, and at this time, the conductive piece 20 connected to the connection region 121 is also located outside the touch region 111, and when a light source is provided below the touch region 111, the light source can illuminate the touch region 111 and does not map the projection of the conductive piece 20 at the touch region 111, so that the problem of a dark shadow does not occur in the touch region 111.

The touch area 111 may be provided in a plurality of areas, and one connection area 121 is correspondingly provided beside each touch area. One conductive member 20 is provided for each connection region.

When a light source is disposed below the touch area 111, in order to enable the light source to illuminate the touch area 111, the conductive layer 30 has a certain light transmittance, that is, the conductive layer 30 is transparent to light, so that the light source can illuminate the touch area 111.

In other embodiments, the conductive layer 30 may be conductive oil, wherein the conductive oil covers the touch area 111. By adopting the conductive oil, the electrical connection between the conductive oil and the conductive member 20 is easily established, and the production cost and the installation steps can be reduced, and the production efficiency can be improved.

The conductive layer 30 may extend directly to the connection region 121 and be electrically connected to the conductive member 20 at the connection region 121, for example, when the conductive layer 30 uses conductive oil, the conductive oil may flow to the connection region 121 and contact the conductive member 20, so as to achieve electrical connection between the conductive oil and the conductive member 20.

In other embodiments, the conductive layer 30 and the conductive member 20 may be electrically connected by a wire, one end of which is electrically connected to the conductive layer 30, and the other end of which is led out to the conductive member 20 and electrically connected to the conductive member 20. The conductive lines may be silver paste lines, such as silver paste lines, which may be silk-screened at the second surface 12 of the touch layer 10 in the touch region 111 and led out to be electrically connected to the conductive member 20.

For example, the touch key provided by the embodiment of the present application may be a key pattern printed on the first surface 11, where the key pattern is located at the touch area 111. For example, a plurality of different key patterns are silk-screened, different key patterns can represent different control functions of the touch key, such as setting a "+" symbol and a "-" symbol can represent control of the temperature of the refrigerator, and by silk-screening the key patterns at the touch area 111, different control functions can be correspondingly realized after different positions of the touch key are touched. When a light source is disposed under the touch area 111, the light source may illuminate the key pattern.

It can be understood that when the silver paste lines are arranged, in order that the shadow of the silver paste lines is not projected at the key pattern when the light source illuminates the key pattern, the silver paste lines may be arranged to avoid the touch area 111, such as when the touch area 111 is in a square frame shape, the silver paste lines may be arranged around the edges of the square frame.

In other embodiments, referring to fig. 3 in combination with fig. 2, fig. 3 is a schematic structural diagram of a substrate according to an embodiment of the present disclosure. The touch key may further include a substrate 50, the substrate 50 is used for carrying and mounting, and the touch layer 10 is disposed on the substrate 50. The substrate 50 can be fastened to the circuit board 40 and mounted on the refrigerator body. The substrate 50 is provided with a key through hole 51 and a connection through hole 52, the touch layer 10 is disposed on the substrate 50, the touch region 111 is disposed corresponding to the key through hole 51, the connection region 121 is disposed corresponding to the connection through hole 52, and the conductive member 20 penetrates through the connection through hole 52 and is connected to the connection region 121. When the light source is disposed under the touch region 111, light of the light source may be irradiated to the touch region 111 through the key through hole 51. It will be appreciated that the second surface 12 of the touch layer 10 is attached to the substrate 50.

For example, referring to fig. 2 and fig. 3, the conductive member 20 may be soldered on the circuit board 40 in advance, and when the circuit board 40 is fastened to the substrate 50, an end of the conductive member 20 away from the circuit board 40 is connected to the connection region 121 of the touch layer 10 through the connection through hole 52 and is electrically connected to the conductive layer 30. The structure facilitates the assembly of the touch key. The conductive member 20 may be made into a column shape, or may be a spring. The connection region 121 where the conductive member 20 is connected to the touch layer 10 may be where the conductive member 20 is in contact connection with the second surface 12 of the touch layer 10.

It should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order, and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The touch key and the refrigerator provided by the embodiment of the application are described in detail, a specific example is applied in the description to explain the principle and the implementation of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A touch key, comprising:

2. The touch key of claim 1, further comprising a conductive line, wherein the conductive layer and the conductive member are electrically connected by the conductive line.

3. The touch key of claim 2, wherein the conductive lines are silver paste lines.

4. The touch key of claim 1, wherein the conductive layer extends to the connection region and is in electrical communication with the conductive member.

5. The touch key of claim 1, wherein the conductive layer comprises a conductive oil.

6. The touch key of claim 1, wherein the conductive layer is transparent to light.

7. The touch key of claim 1, wherein the first surface is provided with a key pattern, the key pattern being located in the touch area.

8. The touch key of claim 1, wherein one end of the conductive member is soldered to the circuit board.

9. The touch key of any one of claims 1-8, further comprising a substrate, wherein the substrate is provided with a key through hole and a connection through hole, the touch layer is disposed on the substrate, the touch region is disposed corresponding to the key through hole, the connection region is disposed corresponding to the connection through hole, and the conductive member is disposed through the connection through hole and connected to the connection region.

10. A refrigerator characterized by comprising the touch key according to any one of claims 1 to 9.