Display device and range hood with same

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to a display device and a range hood with the same. The display device comprises a switch circuit board, a display assembly, a color film assembly and a wire. The display assembly comprises a display shell and an LED lamp, the display shell is installed on the switch circuit board, the display shell is provided with a light guide channel, the LED lamp is installed in the display shell, and the projection of the LED lamp is located in the light guide channel; the color film assembly comprises a protective film, a conductive film, a color filter film and a light leakage film. The protective film, the conductive film, the color filter film and the light leakage film are sequentially overlapped from top to bottom, the light leakage film is detachably installed on the display assembly, and light emitted by the LED lamp can penetrate through the light leakage film through the light guide channel; the wire is electrically connected with the switch circuit board, and the LED lamp and the conductive film are both electrically connected with the switch circuit board. The utility model aims to solve the problem that the display of a normal display area is influenced as the conventional range hood cannot shield other illuminated areas in a range hood main body.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and in particular to a display device and a range hood having the same. Background Art

[0002] The existing range hood is arranged above the kitchen stove and is used to extract and discharge the oil smoke generated during the cooking process when the user cooks food. The existing range hood includes a range hood body and a display device, and the existing display device is installed on the back of the glass part in the range hood body.

[0003] However, when the user is using the range hood, the light emitted by the display device easily illuminates the entire glass piece, and the normal display area and other areas of the range hood body are illuminated. The existing range hood cannot shield the other illuminated areas of the range hood body, affecting the display of the normal display area. Utility Model Content

[0004] The purpose of the utility model is to provide a display device for solving the problem that the existing range hood cannot shield other illuminated areas in the range hood body, thereby affecting the display of the normal display area.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a display device for a range hood, comprising:

[0006] Switch circuit board;

[0007] A display assembly includes a display housing and an LED lamp, wherein the display housing is detachably mounted on the switch circuit board, the display housing has a light guide channel, and the LED lamp is detachably mounted in the display housing, with the projection of the LED lamp being located in the light guide channel;

[0008] A color film assembly includes a protective film, a conductive film, a color filter film, and a light leakage film; the protective film, the conductive film, the color filter film, and the light leakage film are overlapped in sequence from top to bottom, the light leakage film is detachably mounted on the display assembly, and the light emitted by the LED lamp can pass through the light leakage film through the light guide channel;

[0009] A wire is electrically connected to the switch circuit board, and the LED lamp and the conductive film are both electrically connected to the switch circuit board.

[0010] According to one embodiment of the present utility model, the display component also includes a display circuit board and lamp beads, the display circuit board is detachably installed in the display housing, the display circuit board is electrically connected to the switch circuit board, the display circuit board is installed on the top of the LED lamp, the LED lamp is electrically connected to the display circuit board, the projection of the LED lamp is located in the middle of the display circuit board, and the lamp beads are detachably installed on the edge of the display circuit board.

[0011] According to one embodiment of the present invention, the diameter of the color film assembly is 5 cm-8 cm, and the protective film is brown or gray.

[0012] According to one embodiment of the present invention, the protective film, the conductive film, the color filter film and the light leakage film are of the same size;

[0013] The protective film is a transparent protective film, the conductive film is a transparent conductive film, the color filter film is a color filter film, and the light-leaking film has a light-transmitting area and a light-shielding area. The light-transmitting area is located above the light-guiding channel and the projection of the lamp beads, and the light-shielding area is located at the edge of the light-leaking film.

[0014] According to one embodiment of the present invention, the color film assembly also includes a soft board, and mounting channels are provided on both the switch circuit board and the display circuit board. The mounting end of the soft board is detachably connected to the color film assembly, and the free end of the soft board is detachably mounted on the bottom of the switch circuit board through the mounting channel.

[0015] According to one embodiment of the present invention, it also includes a box body, the side wall of the box body is provided with a wire hole, the top of the box body is provided with a light-transmitting hole, the switch circuit board, display assembly and color film assembly are installed in the box body, the wire passes through the wire hole, and the projection of the color film assembly passes through the light-transmitting hole.

[0016] According to one embodiment of the present invention, the box body includes an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, the upper shell is provided with the light-transmitting hole, and the lower shell is provided with the wire hole.

[0017] According to one embodiment of the present invention, a light-transmitting sheet is further included. A mounting groove is provided on the top of the upper shell, the mounting groove is communicated with the light-transmitting hole, and the light-transmitting sheet is detachably mounted in the mounting groove.

[0018] According to one embodiment of the present invention, a spring is installed in the lower shell, and two ends of the spring are respectively connected to the lower shell and the switch circuit board.

[0019] The utility model also provides a range hood, comprising a range hood body and the above-mentioned display device, wherein the side of the range hood body facing the user is provided with a sheet metal panel, the sheet metal panel is provided with a through hole, the display device is installed in the range hood body, and the color film component is embedded and installed in the through hole.

[0020] Compared with the prior art, the display device of the present invention and the range hood having the same have the following advantages:

[0021] The utility model provides a display device, which is provided with a switch circuit board, a display component, a color film component and a wire. When the user is in use, after the LED lamp emits light, the light emitted by the LED lamp passes through the light leakage film through the light guide channel, and then the light emitted by the LED lamp passes through the color filter film, the conductive film and the protective film in sequence, so that the display device is illuminated, which is convenient for the user to touch. At the same time, the light leakage film shields the light that deviates from the light guide channel, so that no light leakage occurs outside the light guide channel, and other areas of the range hood body are prevented from being illuminated.

[0022] A range hood of the present invention is configured such that a sheet metal panel is arranged on the side of the range hood body facing the user, and a color film component of a display device is inserted into a through hole, so that the top of the color film component is flush with the outer surface of the sheet metal panel. The user can touch the color film component more sensitively, thereby enabling the user to better control the range hood by touching the color film component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 This is a schematic structural diagram of a display device of the present invention;

[0025] Figure 2 This is another structural schematic diagram of a display device of the present invention;

[0026] Figure 3 This is an exploded view of a display component in a display device of the present invention;

[0027] Figure 4 This is an exploded view of a color film component in a display device of the present invention;

[0028] Figure 5 This is a cross-sectional view of a display device of the present invention;

[0029] Figure 6 This is an exploded view of the structure of a display device of the present invention;

[0030] Figure 7 This is an exploded diagram of the structure of a range hood according to the present invention;

[0031] Figure 8 The present invention is a schematic structural diagram of a range hood in which a display device is installed in a range hood body.

[0032] In the figure: switch circuit board 1, display component 2, display housing 21, LED lamp 22, display circuit board 23, lamp bead 24, color film component 3, protective film 31, conductive film 32, color filter film 33, light leakage film 34, soft board 35, wire 4, box body 5, wire hole 51, upper housing 52, lower housing 53, spring 54, light-transmitting sheet 6, range hood body 7, sheet metal panel 71.

[0033] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0038] See also Figures 1 to 6 The utility model provides a display device for a range hood, comprising a switch circuit board 1, a display component 2, a color film component 3 and a wire 4.

[0039] In this embodiment, the switch circuit board 1 is used to support the display assembly 2 and the color film assembly 3, so as to facilitate better installation of the display assembly 2 and the color film assembly 3.

[0040] The display assembly 2 includes a display housing 21 and an LED light 22. The display housing 21 is detachably mounted on the switch circuit board 1. The display housing 21 has a light guide channel. The LED light 22 is detachably mounted within the display housing 21, with the projection of the LED light 22 located within the light guide channel. Specifically, the display housing 21 is detachably mounted on the switch circuit board 1 using screws, and the LED light 22 is located in the middle of the display housing 21.

[0041] The color filter assembly 3 includes a protective film 31, a conductive film 32, a color filter 33, and a light-leaking film 34. These films overlap from top to bottom. The light-leaking film 34 is removably mounted on the display assembly 2. Light emitted by the LED lamp 22 can pass through the light-leaking film 34 via the light-guiding channel. In this embodiment, the conductive film 32 is provided with multiple touch areas with different functions. When a user touches a corresponding touch area, the corresponding conductor on the conductive film 32 changes capacitance, thereby controlling the corresponding function of the range hood. The protective film 31 protects the conductive film 32, the color filter 33 filters light transmitted by the LED lamp 22, thereby forming the color controlled by the user, and the light-leaking film 34 blocks light outside the light-guiding channel.

[0042] The wire 4 is electrically connected to the switch circuit board 1, and the LED lamp 22 and the conductive film 32 are both electrically connected to the switch circuit board 1. The wire 4 is electrically connected to the switch circuit board 1, thereby powering and transmitting signals to the switch circuit board 1 through the wire 4, and also facilitates the switch circuit board 1 to power or transmit signals to the LED lamp 22 and the conductive film 32.

[0043] When the user uses the range hood, power is supplied to the switch circuit board 1 via the wire 4, and the LED lamp 22 emits light. The light from the LED lamp 22 passes through the light-tightening film 34 through the light-guiding channel, and then sequentially passes through the color filter 33, the conductive film 32, and the protective film 31, thereby illuminating the display device and facilitating touch control by the user. The user touches the conductive film 32 through the protective film 31, thereby controlling the range hood. Simultaneously, the light-tightening film 34 blocks light that deviates from the light-guiding channel, thereby preventing light leakage outside the light-guiding channel and illuminating other areas of the range hood body 7.

[0044] Based on the above examples, please refer to Figure 3 and Figure 6 The display assembly 2 of the present invention further includes a display circuit board 23 and lamp beads 24. The display circuit board 23 is detachably mounted within the display housing 21. The display circuit board 23 is electrically connected to the switch circuit board 1 and mounted on top of the LED lamp 22. The LED lamp 22 is electrically connected to the display circuit board 23. The projection of the LED lamp 22 is located in the middle of the display circuit board 23. The lamp beads 24 are detachably mounted on the edge of the display circuit board 23. Through the arrangement of the display circuit board 23 and the lamp beads 24, the display circuit board 23 is detachably mounted above the LED lamp 22 by bonding. During use, when the display circuit board 23 is powered on, the lamp beads 24 light up, and the touch area of ​​the conductive film 32 is brightened by the lamp beads 24, allowing the user to better identify different touch areas on the conductive film 32.

[0045] Based on the above examples, please refer to Figure 1 and Figure 4 The diameter of the color film assembly 3 of the present invention is 5cm-8cm, and the protective film 31 is brown or gray. In this embodiment, the diameter of the color film assembly 3 is 6cm. Similarly, the diameter of the color film assembly 3 can also be set to 5cm or 8cm, which not only facilitates user operation but also facilitates installation of the color film assembly 3 on the range hood. Furthermore, the brown or gray protective film 31 provides a softer light, preventing external light from interfering with the display device.

[0046] Based on the above examples, please refer to Figure 1 and Figure 4 The protective film 31, the conductive film 32, the color filter film 33, and the light leakage film 34 of the present invention are of the same size. By setting the protective film 31, the conductive film 32, the color filter film 33, and the light leakage film 34 to the same size, the protective film 31, the conductive film 32, the color filter film 33, and the light leakage film 34 can be overlapped in sequence to avoid gaps.

[0047] The protective film 31 is a transparent protective film 31, the conductive film 32 is a transparent conductive film 32, the color filter film 33 is a color filter film 33, and the light leakage film 34 has a light-transmitting area and a light-shielding area. The light-transmitting area is located above the light guide channel and the projection of the lamp bead 24, and the light-shielding area is located at the edge of the light leakage film 34. By setting the protective film 31 as a transparent protective film 31, the conductive film 32 as a transparent conductive film 32, and the color filter film 33 as a color filter film 33. There are areas of different colors on the color filter film 33 to correspond to different functional areas on the conductive film 32. During use, the color filter film 33 filters the light emitted by the lamp bead 24, so that it can be better used. When the lamp bead 24 and the LED lamp 22 are respectively turned on, the light emitted by the lamp bead 24 and the LED lamp 22 respectively pass through the light-transmitting area, and the light-shielding area blocks the light that deviates from the light-transmitting area, thereby making the display area of ​​the display device clearer.

[0048] Based on the above examples, please refer to Figure 1 and Figure 2 The color filter assembly 3 of the present invention also includes a flexible board 35. Mounting channels are provided on both the switch circuit board 1 and the display circuit board 23. The mounting end of the flexible board 35 is removably connected to the color filter assembly 3, and the free end of the flexible board 35 passes through the mounting channel and is removably mounted to the bottom of the switch circuit board 1. By providing mounting channels on both the switch circuit board 1 and the display circuit board 23, during user installation of the display device (in this embodiment, the flexible board 35 is an FPC), the upper end of the flexible board 35 is removably bonded to the light-shielding area of ​​the light-leaking film 34, or the upper end of the flexible board 35 passes through holes in the color filter 33 and the light-leaking film 34, and then is removably bonded to the bottom of the conductive film 32. The lower end of the flexible board 35 passes through the mounting channel and is bonded to the bottom of the switch circuit board 1. This ensures a tight fit between the color filter assembly 3, the display assembly 2, and the switch circuit board 1, preventing the color filter assembly 3 or the display assembly 2 from becoming loose during use of the range hood.

[0049] Based on the above examples, please refer to Figure 5 and Figure 6The present invention also includes a box body 5, with a wire hole 51 defined in its sidewalls and a light-transmitting hole defined in its top. The switch circuit board 1, display assembly 2, and color film assembly 3 are installed within the box body 5. The wires 4 pass through the wire hole 51, and the projection of the color film assembly 3 passes through the light-transmitting hole. The box body 5 protects the switch circuit board 1, display assembly 2, and color film assembly 3 from damage in the event of a collision. The color film assembly 3 also passes through the light-transmitting hole. During installation, the user inserts the protective film 31 into the light-transmitting hole, aligning it with the top of the box body 5 for easy touch. Furthermore, the wires 4 are passed through the wire hole 51, allowing for electrical connection with the remaining components of the range hood, enhancing signal transmission.

[0050] Based on the above examples, please refer to Figure 5 and Figure 6 The box body 5 of the present invention includes an upper shell 52 and a lower shell 53, which are detachably connected. The upper shell 52 defines the light-transmitting hole, and the lower shell 53 defines the wire hole 51. With the arrangement of the upper shell 52 and the lower shell 53 of the present invention, the upper shell 52 and the lower shell 53 are detachably connected by screws. When installing the display device, the user can separate the upper shell 52 and the lower shell 53 to facilitate installation.

[0051] Based on the above examples, please refer to Figure 6 The present invention further includes a light-transmitting sheet 6. A mounting groove is provided on the top of the upper shell 52, the mounting groove being in communication with the light-transmitting hole. The light-transmitting sheet 6 is detachably mounted in the mounting groove. The light-transmitting sheet 6 has a light-transmitting area of ​​the same size as the display hole. The light-transmitting sheet 6 is detachably mounted in the mounting groove by ultrasonic welding. The light-transmitting sheet 6 is in close contact with the protective film 31, protecting the protective film 31 and preventing the user from more firmly mounting the light-transmitting sheet 6 on the box body 5 during use of the display device. When the user installs or touches the light-transmitting sheet 6, the user prevents the light-transmitting sheet 6 from easily falling off the box body 5. At the same time, by touching the light-transmitting sheet 6, the user can touch the touch area on the conductive film 32 through the protective film 31, thereby realizing the control of the corresponding function.

[0052] Based on the above examples, please refer to Figure 5 and Figure 6In the present invention, a spring 54 is installed within the lower housing 53. The two ends of the spring 54 are connected to the lower housing 53 and the switch circuit board 1, respectively. In this embodiment, four springs 54 are provided, one at each of the four corners of the lower housing 53. The addition of springs 54 at the four corners of the lower housing 53 allows the switch circuit board 1 to rest tightly against the upper cover and the light-transmitting sheet 6, thereby ensuring better touch sensitivity when the user is using the display device.

[0053] The utility model also provides a range hood, please refer to Figure 7 and Figure 8 The range hood body 7 includes a main body 7 and the display device described above. The side of the main body 7 facing the user has a sheet metal panel 71 with a through hole. The display device is installed in the main body 7, and the color film assembly 3 is embedded and installed in the through hole. At the same time, the main body 7 also includes a cover plate and a fixing plate. The top of the sheet metal panel 71 has a mounting hole, through which the box body 5 can pass. The cover plate covers the mounting hole, and the box body 5 is fixed to the sheet metal panel 71 via the fixing plate. When installing the box body 5, the user first opens the cover plate, inserts the box body 5 through the mounting hole, and then places it into the main body 7. The touch unit is inserted into the through hole and the box body 5 is fixed to the sheet metal panel 71 by ultrasonic welding. At the same time, the box body 5 is fixed to the sheet metal panel 71 again via the fixing plate. The cover plate is then closed over the mounting hole, thereby achieving quick installation of the box body 5.

[0054] By setting the sheet metal panel 71 on the side of the range hood body 7 facing the user, the color film component 3 of the display device is inserted into the through hole, so that the top of the color film component 3 can be flush with the outer surface of the sheet metal panel 71. The user can touch the color film component 3 more sensitively, so that the user can better control the range hood by touching the color film component 3.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A display device, characterized in that: For range hoods, including: Switch circuit board (1); A display assembly (2) comprising a display housing (21) and an LED lamp (22), wherein the display housing (21) is detachably mounted on the switch circuit board (1), the display housing (21) has a light guide channel, the LED lamp (22) is detachably mounted in the display housing (21), and the projection of the LED lamp (22) is located in the light guide channel; A color film assembly (3) comprising a protective film (31), a conductive film (32), a color filter film (33) and a light leakage film (34); the protective film (31), the conductive film (32), the color filter film (33) and the light leakage film (34) are sequentially overlapped from top to bottom; the light leakage film (34) is detachably mounted on the display assembly (2); and light emitted by the LED lamp (22) can pass through the light leakage film (34) via the light guide channel; A wire (4), the wire (4) is electrically connected to the switch circuit board (1), and the LED lamp (22) and the conductive film (32) are both electrically connected to the switch circuit board (1).

2. The display device according to claim 1, wherein The display assembly (2) further includes a display circuit board (23) and a lamp bead (24); The display circuit board (23) is detachably mounted in the display housing (21), the display circuit board (23) is electrically connected to the switch circuit board (1), the display circuit board (23) is mounted on the top of the LED lamp (22), the LED lamp (22) is electrically connected to the display circuit board (23), the projection of the LED lamp (22) is located in the middle of the display circuit board (23), and the lamp beads (24) are detachably mounted on the edge of the display circuit board (23).

3. The display device according to claim 2, wherein: The diameter of the color film component (3) is 5 cm to 8 cm, and the protective film (31) is brown or gray.

4. The display device according to claim 2, wherein: The protective film (31), the conductive film (32), the color filter film (33) and the light leakage film (34) are of the same size; The protective film (31) is a transparent protective film (31), the conductive film (32) is a transparent conductive film (32), the color filter film (33) is a color filter film (33), and the light leakage film (34) has a light-transmitting area and a light-shielding area, the light-transmitting area is located above the light-guiding channel and the projection of the lamp beads (24), and the light-shielding area is located at the edge of the light leakage film (34).

5. The display device according to claim 4, wherein: The color film assembly (3) further comprises a soft board (35); both the switch circuit board (1) and the display circuit board (23) are provided with mounting channels; the mounting end of the soft board (35) is detachably connected to the color film assembly (3); and the free end of the soft board (35) passes through the mounting channel and is detachably mounted on the bottom of the switch circuit board (1).

6. The display device according to claim 1, wherein The invention also comprises a box body (5), wherein a wire hole (51) is provided on a side wall of the box body (5), and a light-transmitting hole is provided on the top of the box body (5); the switch circuit board (1), the display component (2) and the color film component (3) are installed in the box body (5); the wire (4) passes through the wire hole (51), and the projection of the color film component (3) passes through the light-transmitting hole.

7. The display device according to claim 6, wherein: The box body (5) comprises an upper shell (52) and a lower shell (53), wherein the upper shell (52) and the lower shell (53) are detachably connected, the upper shell (52) is provided with the light-transmitting hole, and the lower shell (53) is provided with the wire hole (51).

8. The display device according to claim 7, wherein: It also includes a light-transmitting sheet (6), and a mounting groove is provided on the top of the upper shell (52), the mounting groove is communicated with the light-transmitting hole, and the light-transmitting sheet (6) is detachably mounted in the mounting groove.

9. The display device according to claim 8, wherein A spring (54) is installed in the lower housing (53), and two ends of the spring (54) are respectively connected to the lower housing (53) and the switch circuit board (1).

10. A range hood, characterized in that: The invention comprises a range hood body (7) and a display device according to any one of claims 1 to 9, wherein the side of the range hood body (7) facing the user is provided with a sheet metal panel (71), the sheet metal panel (71) is provided with a through hole, the display device is installed in the range hood body (7), and the color film assembly (3) is embedded and installed in the through hole.

Images