CN217482826U

CN217482826U - Touch device and range hood with same

Info

Publication number: CN217482826U
Application number: CN202221229486.2U
Authority: CN
Inventors: 肖云喆; 胡丹; 黄达富; 林宋武; 王晓华; 肖林辉
Original assignee: Chinabest Home Appliances Co Ltd
Current assignee: Chinabest Home Appliances Co Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-23
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a touch device and have its range hood, touch device wherein includes: a circuit board, a conductive member and a key lighting display area are arranged on the front side of the circuit board; the mounting shell is provided with the circuit board, and a first hollow hole for exposing the conductive piece and a second hollow hole for exposing the key lightening display area are formed in the front side of the mounting shell; the touch film is arranged on the front side of the installation shell and is provided with a touch area and a contact area which are electrically connected, the contact area is in contact with the conductive piece, and the part of the touch film, which is positioned on the front side of the second hollow hole, is light-permeable. According to the structure, the contact area of the touch film is in contact with the conductive piece to realize the electric connection between the touch film and the circuit board, the touch signal can be transmitted, a flat cable is not required to be additionally arranged to plug the circuit board, the structure can be simplified, the assembly of the touch device is simpler, and the fault caused by the loosening of the plug part can be avoided.

Description

Touch device and range hood with same

Technical Field

The utility model relates to a kitchen electricity technical field, in particular to touch device and have its range hood.

Background

The touch modes of the existing range hood are generally divided into spring touch, ITO touch and other modes, wherein the limitation of a spring touch structure causes a display window to be small, and a large-area display key is not suitable for spring touch. The conventional ITO mode can realize a large-area display window, but the touch film needs to be connected with a flat cable and a circuit board for plug-in connection, so that the touch film is complex in structure and difficult to assemble, the plug-in part is easy to loosen and fall off, and the like, and the production and maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a touch device can solve the above-mentioned touch membrane and need winding displacement and circuit board to inserting and the problem of the structure complicacy that leads to, assembly difficulty.

The utility model discloses still provide the range hood that has above-mentioned touch device.

According to the utility model discloses a first aspect provides a touch device, and it includes: a circuit board, a conductive member and a key lighting display area are arranged on the front side of the circuit board; the mounting shell is provided with the circuit board, and a first hollow hole for exposing the conductive piece and a second hollow hole for exposing the key lightening display area are formed in the front side of the mounting shell; the touch film is arranged on the front side of the installation shell and is provided with a touch area and a contact area which are electrically connected, the contact area is in contact with the conductive piece, and the part of the touch film, which is positioned on the front side of the second hollow hole, is light-permeable.

According to the touch device, the touch area and the contact area are electrically connected through a lead arranged on the touch film.

According to the touch device, the conductive piece is a spring, one end of the spring is fixedly connected with the circuit board, and the other end of the spring is in contact with the touch area.

According to the touch device, the inner wall of the installation shell is provided with a limiting cylinder communicated with the first hollow hole, and the spring is located in the limiting cylinder.

According to the touch device, the touch film is adhered to the mounting case.

According to the touch device, the touch area is located on the front side of the second hollow hole, so that the touch area is light-permeable.

According to the touch device, the installation shell comprises a face shell and a bottom shell, a containing groove for containing the circuit board is concavely arranged on the rear side face of the face shell, the first hollow hole and the second hollow hole which are communicated with the containing groove are formed in the front side face of the face shell, and the bottom shell is arranged on the rear side of the face shell.

According to the touch device, the inner side wall of the accommodating groove is provided with a convex part positioned on the front side of the circuit board, the front side of the bottom shell is provided with a boss positioned on the rear side of the circuit board and inserted into the accommodating groove, and the boss is provided with a buckling part clamped on the inner side wall of the accommodating groove.

According to the utility model discloses a second aspect provides range hood, its includes touch device.

The scheme has at least one of the following beneficial effects: like above-mentioned structure, contact through the contact zone with the touch membrane with electrically conductive piece and realize the electric connection between touch membrane and the circuit board to but the transmissible touch signal does not need to set up the winding displacement in addition and comes the opposite insertion circuit board, can simplify the structure, makes touch device's assembly comparatively simple, and can avoid inserting the trouble that the part pine takes off and leads to.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a structural diagram of an embodiment of a touch device according to the present invention;

FIG. 2 is a cross-sectional view of the touch device shown in FIG. 1;

FIG. 3 is a front exploded view of the touch device shown in FIG. 1;

FIG. 4 is another exploded perspective view of the touch device shown in FIG. 1;

figure 5 is a block diagram of the face shell shown in figure 4 from another perspective.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, a touch device includes a circuit board 10, a mounting case 20, and a touch film 30, a conductive member 11 and a key lighting display area 12 are disposed on a front side of the circuit board 10, the circuit board 10 is mounted in the mounting case 20, a first hollow hole 211 exposing the conductive member 11 and a second hollow hole 212 exposing the key lighting display area 12 are disposed on the front side of the mounting case 20, the touch film 30 is disposed on the front side of the mounting case 20, the touch film 30 has a touch area 31 and a contact area 32 electrically connected thereto, the contact area 32 is in contact with the conductive member 11, and a portion of the touch film 30 located on the front side of the second hollow hole 212 is light-permeable. The touch areas 31 and the key lighting display areas 12 are provided in plurality, each touch area 31 is provided with at least one conductive piece 11 correspondingly, and when any one touch area 31 is touched, the corresponding key lighting display area 12 emits light.

As constructed above, in assembly, the circuit board 10 is mounted to the mounting case 20 with the conductive member 11 positioned in the first hollow hole 211, and then the touch film 30 is mounted with the contact region 32 in contact with the conductive member 11. When the range hood is used, a human hand touches the touch area 31 to generate a touch signal, the touch signal is sequentially transmitted to the circuit board 10 through the contact area 32 and the conductive piece 11, the control module arranged on the circuit board 10 or other positions of the range hood can detect the touch signal transmitted through the conductive piece 11, the control module immediately controls the corresponding key to light the display area 12 to emit light, and light generated during light emission passes through the touch film 30 through the second hollow hole 212 and is projected to the outside. In the present embodiment, the contact region 32 of the touch film 30 is in contact with the conductive member 11 to electrically connect the touch film 30 and the circuit board 10, and can transmit a touch signal without additionally providing a flat cable to plug the circuit board 10, so that the structure can be simplified, the assembly of the touch device is simple, and a failure caused by the loose of the plug portion can be avoided.

Specifically, the touch area 31 and the contact area 32 are electrically connected by a lead wire disposed on the touch film 30, and the lead wire is integrated on the touch film 30, so that the structure and assembly can be simplified.

In this embodiment, the conductive member 11 is configured as a spring, one end of the spring is fixed to the circuit board 10, and the other end of the spring is in contact with the touch area 31. During assembly, the spring can be in a compressed state, so that a certain pressure is kept between the spring and the contact area 32, the conductive piece 11 is prevented from being separated from the contact area 32 due to matching errors or vibration and other factors, and good contact between the conductive piece 11 and the contact area 32 and stable transmission of touch signals are ensured.

In this embodiment, the inner wall of the mounting shell 20 is provided with a limiting cylinder 213 communicated with the first hollow hole 211, the limiting cylinder 213 is coaxially arranged with the first hollow hole 211, and the spring is located in the limiting cylinder 213. The spring is limited and guided by the limiting cylinder 213, and the deviation of the spring is avoided.

In the present embodiment, the touch film 30 is bonded to the mounting case 20 to simplify assembly. The back side of the touch film 30 is coated with a back adhesive in advance to adhere the touch film 30.

In the present embodiment, the touch area 31 is located at the front side of the second hollow hole 212, so that the touch area 31 is transparent. That is, after the human hand touches the touch area 31, the light can be projected to the outside through the touch area 31, and the light emitting effect of the touch area 31 is generated. For the structure, when a user needs to touch the same touch area 31 again (for example, when the wind speed is adjusted and the range hood is opened or closed, the user needs to touch the same touch area 31 at least twice), the corresponding light-emitting position is directly touched, and the operation is convenient; and the structure can make the whole appearance of the touch device more compact, and the touch device is convenient to arrange in the range hood. The area of the touch area 31 may be set to be smaller than the cross-sectional area of the second hollow hole 212, so that besides the light emission of the touch area 31, the position around the touch area 31 also has the light emission effect, and the touch device may have a larger light-emitting display surface.

In the present embodiment, the mounting case 20 includes a front case 21 and a bottom case 22, a receiving groove 214 for receiving the circuit board 10 is concavely disposed on a rear side of the front case 21, a first hollow hole 211 and a second hollow hole 212 communicating with the receiving groove 214 are disposed on a front side of the front case, and the bottom case 22 is disposed on a rear side of the front case 21. The inner sidewall of the receiving cavity 214 has a protrusion 215 and a locking slot 216, the protrusion 215 is located at the front side of the circuit board 10, the front side of the bottom case 22 has a protrusion 221 located at the rear side of the circuit board 10 and inserted into the receiving cavity 214, the protrusion 221 has a locking portion 222, and the locking portion 222 is inserted into the locking slot 216 to lock the locking portion 222 in the inner sidewall of the receiving cavity 214. The front side of the circuit board 10 abuts against the convex part 215 and the rear side abuts against the convex part 221 to position the circuit board 10. With this structure, the face case 21 and the bottom case 22 can be mounted, and the circuit board 10 can be sandwiched and positioned between the face case 21 and the bottom case 22.

The utility model also discloses a range hood, it includes foretell touch device, and wherein, touch device can install in range hood's front portion to user touch operation.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A touch device, comprising:

a circuit board (10) provided with a conductive member (11) and a key lighting display area (12) on the front side;

a mounting case (20) on which the circuit board (10) is mounted, and which is provided at a front side with a first hollow hole (211) exposing the conductive member (11) and a second hollow hole (212) exposing the key illumination display area (12);

the touch film (30) is arranged on the front side of the mounting shell (20) and is provided with a touch area (31) and a contact area (32) which are electrically connected, the contact area (32) is in contact with the conductive piece (11), and the part, located on the front side of the second hollow hole (212), of the touch film (30) is light-permeable.

2. A touch device according to claim 1, wherein the touch area (31) and the contact area (32) are electrically connected by means of lead wires arranged on the touch film (30).

3. A touching device according to claim 1, characterized in that the conductive element (11) is configured as a spring, one end of which is fixedly connected to the circuit board (10) and the other end of which is in contact with the touch area (31).

4. The touching device according to claim 3, wherein the inner wall of the mounting housing (20) is provided with a limiting cylinder (213) communicated with the first hollow hole (211), and the spring is positioned in the limiting cylinder (213).

5. A touching device according to claim 1, characterized in that the touch film (30) is bonded to the mounting housing (20).

6. A touching device according to claim 1, wherein the touch area (31) is located in front of the second aperture (212) so that the touch area (31) is arranged to be light permeable.

7. The touch device according to claim 1, wherein the mounting case (20) comprises a face case (21) and a bottom case (22), a receiving groove (214) for receiving the circuit board (10) is concavely formed on a rear side of the face case (21), the first hollow hole (211) and the second hollow hole (212) communicating with the receiving groove (214) are formed on a front side of the face case, and the bottom case (22) is disposed on a rear side of the face case (21).

8. The touch device according to claim 7, wherein the inner sidewall of the receiving cavity (214) has a protrusion (215) located at a front side of the circuit board (10), the front side of the bottom case (22) has a boss (221) located at a rear side of the circuit board (10) and inserted into the receiving cavity (214), the boss (221) has a latch portion (222), and the latch portion (222) is latched to the inner sidewall of the receiving cavity (214).

9. A range hood comprising a touch device as claimed in any one of claims 1 to 8.