Transparent touch switch and range hood thereof

By setting a light-shielding layer and a light-emitting component on the transparent touch panel, the light exposure range is limited, the key identification is made more clearly distinguishable, the problem of insufficient distinction between adjacent key patterns on the transparent touch panel is solved, and the user experience is improved.

CN223296686UActive Publication Date: 2025-09-02NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202422262436.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-08-06
Filing Date
2024-09-12
Publication Date
2025-09-02
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

The existing transparent touch switches are transparent as a whole, resulting in insufficient distinction between adjacent key patterns, which affects the user experience.

Method used

A light shielding layer is provided on the transparent touch panel to limit the light irradiation range of the light emitting component so that the light is only irradiated on the identification area, and the key identification is displayed through the light emitting component.

Benefits of technology

It significantly improves the distinction between adjacent button patterns on the transparent touch panel and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of touch control switches, in particular to a transparent touch control switch and a range hood thereof, the transparent touch control switch comprises a transparent touch control panel, a light-emitting assembly and a shading layer, the transparent touch control panel is provided with an identification area and a non-identification area, the identification area is provided with key identifications, the light-emitting assembly is arranged on one side of the transparent touch control panel, and the non-identification area is arranged on the other side of the transparent touch control panel. The light-emitting assembly is arranged on the transparent touch panel and can emit light and enable the light to irradiate the transparent touch panel so that the key marks can be displayed on the transparent touch panel, and the light shielding layer is arranged between the transparent touch panel and the light-emitting assembly and can limit the irradiation range of the light emitted by the light-emitting assembly so that the light can irradiate the mark area of the transparent touch panel. By adopting the transparent touch switch, the distinction degree of the adjacent key patterns on the transparent touch panel can be greatly improved, and the use experience of a user is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of touch switches, in particular to a transparent touch switch and a range hood thereof. Background Art

[0002] A range hood, also known as a range hood, is a device that purifies the kitchen environment. It is mainly installed above the stove and is used to quickly remove stove combustion waste and oil fumes generated during the cooking process that are harmful to the human body, thereby reducing pollution and protecting human health.

[0003] The transparent touch panel on the existing transparent touch switch is provided with a marking area and an unmarked area. When the corresponding button is pressed, the button pattern on the marking area lights up. However, since the transparent touch panel is transparent as a whole, it is easier to guide light. When the first button icon lights up, the adjacent button icons will also have corresponding brightness, resulting in insufficient distinction between adjacent button patterns on the transparent touch panel, which in turn leads to a poor user experience.

[0004] Therefore, it is necessary to develop a transparent touch switch to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, the purpose of the present invention is to provide a range hood with a transparent touch switch.

[0006] The utility model is realized by the following technical solutions:

[0007] A transparent touch switch, wherein the transparent touch panel is provided with a marking area and an unmarked area, and the marking area is provided with a button mark;

[0008] a light-emitting component, the light-emitting component being disposed on one side of the transparent touch panel and configured to emit light and illuminate the transparent touch panel so that the button mark is displayed on the transparent touch panel;

[0009] A light shielding layer is provided between the transparent touch panel and the light emitting component, and is used to limit the irradiation range of the light emitted by the light emitting component so that the light is irradiated on the marking area of ​​the transparent touch panel.

[0010] In a possible implementation, the transparent touch panel includes a first transparent layer, and the first transparent layer is a glass transparent layer.

[0011] In a possible implementation, the transparent touch panel is T-shaped.

[0012] In a possible implementation, the transparent touch panel includes at least a horizontal portion and a vertical portion, and along the length direction of the transparent touch panel, a length L1 of the horizontal portion and a length L2 of the vertical portion satisfy the following relationship: 1 / 90≤L1 / L2≤1 / 36.

[0013] In a possible implementation, the light-shielding layer includes at least one light-transmitting portion, and the light-transmitting portion corresponds to the logo area of ​​the transparent touch panel and is used to irradiate the light of the light-emitting component onto the logo area of ​​the transparent touch panel.

[0014] In a possible embodiment, the light-shielding layer includes at least one light-shielding portion corresponding to the non-marking area of ​​the transparent touch panel and configured to shield light emitted by the light-emitting component so that the light is irradiated on the marking area of ​​the transparent touch panel.

[0015] In one possible embodiment, the transparent touch switch further includes a fixing assembly, which includes a fixing seat, a base connected to the fixing seat, and a clip arranged on the base. The fixing seat is provided with a mounting groove, and one side of the transparent touch panel passes through the mounting groove and is fixedly connected to the clip.

[0016] In a possible implementation, the transparent touch switch further includes a control circuit board connected to the light-emitting component, the base is recessed to form a receiving groove, and the control circuit board is placed in the receiving groove.

[0017] In a possible implementation, the transparent touch switch further includes a sealing member, and the sealing member is sleeved on the base.

[0018] In a possible implementation, the light-emitting assembly includes a plurality of light-emitting parts, and the light-emitting parts are spherical lamp beads.

[0019] The utility model also provides a range hood comprising any of the above-mentioned transparent touch switches.

[0020] The utility model has the following beneficial effects:

[0021] The transparent touch switch of the present invention comprises a transparent touch panel, a light-emitting component, and a light-shielding layer. The transparent touch panel is provided with a marking area and an unmarked area, with the marking area provided with a key marking. The light-emitting component is disposed on one side of the transparent touch panel and is capable of emitting light so that the light shines on the transparent touch panel, causing the key markings to be displayed on the transparent touch panel. The light-shielding layer is disposed between the transparent touch panel and the light-emitting component and is capable of limiting the illumination range of the light emitted by the light-emitting component so that the light shines on the marking area of ​​the transparent touch panel. By adopting this transparent touch switch, the distinction between adjacent key patterns on the transparent touch panel can be greatly improved, avoiding the problem of insufficient distinction between adjacent key patterns when the transparent touch panel is entirely transparent, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present invention or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 1 is a schematic structural diagram of a range hood with a transparent touch switch provided by an embodiment of the present disclosure;

[0024] Figure 2 is a schematic structural diagram of a transparent touch switch provided by an embodiment of the present disclosure;

[0025] Figure 3 This is a front view of the transparent touch panel provided by an embodiment of the present disclosure;

[0026] Figure 4 is a side view of a transparent touch panel provided by an embodiment of the present disclosure;

[0027] Figure 5 is a schematic structural diagram of a transparent touch switch provided by an embodiment of the present disclosure;

[0028] In the figure: 1-transparent touch panel, 101-first chamfer structure, 102-second chamfer structure, 103-icon, 104-first transparent layer, 105-first optical adhesive layer, 106-touch layer, 107-second optical adhesive layer, 108-second transparent layer, 109-horizontal part, 110-vertical part, 2-light-emitting component, 3-light-shielding layer, 4-control circuit board, 5-seal, 6-packaging component, 11-fixing seat, 12-base, 13-clip, 14-back plate, 100-smoke hood, 200-smoke shield. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or devices.

[0031] The following describes the embodiments with reference to the accompanying drawings, which do not limit the disclosure of the claims.

[0032] The following is combined with Figure 1 The transparent touch switch provided by the embodiment of the present invention includes:

[0033] A transparent touch panel 1 is provided with a marking area and an unmarked area, and the marking area is provided with a button marking;

[0034] The light emitting component 2 is provided on one side of the transparent touch panel 1 and is used to emit light and illuminate the transparent touch panel 1 so that the button logo is displayed on the transparent touch panel 1;

[0035] Light-shielding layer 3 is provided between transparent touch panel 1 and light-emitting assembly 2, and is used to limit the illumination range of light emitted by light-emitting assembly 2 so that the light is illuminated only on the marking area of ​​transparent touch panel 1. By adopting this transparent touch switch, the distinction between adjacent key patterns on transparent touch panel 1 can be greatly improved, avoiding the problem of insufficient distinction between adjacent key patterns when transparent touch panel 1 is entirely transparent, and improving the user experience.

[0036] In some embodiments, the light emitting component 2 is disposed on one side of the peripheral edge of the transparent touch panel 1 .

[0037] In some embodiments, the transparent touch panel 1 includes a first transparent layer 104 , and the first transparent layer 104 is a glass transparent layer.

[0038] In some embodiments, the material of the first transparent layer 104 includes at least one of PC, acrylic, and glass. Preferably, the material of the first transparent layer 104 is glass. Using glass as the material of the first transparent layer 104 increases the hardness of the transparent touch panel 1 and its high temperature resistance, thereby extending the service life of the transparent touch switch.

[0039] Specifically, the material of the first transparent layer 104 includes at least one of blue glass, white glass and ultra-clear glass.

[0040] In some embodiments, the transparent touch panel 1 includes a touch layer 106 for sensing a user's finger pressing a key and generating an electrical signal.

[0041] In some embodiments, the transparent touch panel 1 further includes a wire, one end of which is connected to the touch layer 106 , and the other end of which is connected to the control circuit board 4 .

[0042] In some embodiments, the transparent touch panel 1 includes a silver paste line, one end of the silver paste line is connected to the touch layer 106

[0043] The other end extends from the bottom of the touch layer 106 to the control circuit board 4 and is connected to the control circuit board 4.

[0044] In some embodiments, the touch layer 106 includes a conductive film and a substrate.

[0045] Specifically, the conductive film includes at least one of an indium tin oxide film, a nanosilver film and a PeDot film, and the substrate is a PET film.

[0046] In some embodiments, the touch layer 106 is ITO glass.

[0047] In some embodiments, the transparent touch panel 1 further includes a second transparent layer 108 and a touch layer 106 , a first optical adhesive layer 105 is sandwiched between the first transparent layer 104 and the touch layer 106 , and a second optical adhesive layer 107 is sandwiched between the second transparent layer 108 and the touch layer 106 .

[0048] Specifically, the first optical adhesive layer 105 and the second optical adhesive layer 107 are both formed by curing at least one of OCA optical adhesive, LOCA water adhesive, SCA optical adhesive, COF optical adhesive, foam adhesive and double-sided tape; preferably, the first optical adhesive layer 105 and the second optical adhesive layer 107 are both formed by curing OCA optical adhesive.

[0049] Specifically, the first transparent layer 104 and the touch layer 106 are bonded together by OCA optical adhesive, and the second transparent layer 108 and the touch layer 106 are bonded together by OCA optical adhesive.

[0050] In some embodiments, the preparation method of the transparent touch panel 1 includes: coating OCA optical glue on both side surfaces of the touch layer 106 to obtain a touch layer having the OCA optical glue, then performing a cutting process on the touch layer to obtain a touch layer having a specific shape, then respectively bonding the first transparent layer 104 and the second transparent layer 108 to both side surfaces of the touch layer having the specific shape to obtain a pre-treated touch layer, and degassing the pre-treated touch layer to obtain the transparent touch panel 1.

[0051] Specifically, the cutting process includes: using a cutter or a die-cutting machine to cut the touch layer having the OCA optical adhesive to obtain a touch layer having a specific shape.

[0052] Specifically, the machine used in the degassing treatment is a degassing machine.

[0053] In some embodiments, the preparation method of the transparent touch panel includes: coating OCA optical glue on one side surface of the touch layer 106 to obtain a first touch layer, cutting the first touch layer to obtain a touch layer with a specific shape, bonding the first transparent layer 104 and the touch layer with the specific shape with OCA optical glue to obtain a first pre-treated touch layer, coating OCA optical glue on one side surface of the second transparent layer 108 to obtain a second pre-treated touch layer, bonding the first pre-treated touch layer to one side surface of the second transparent layer coated with OCA optical glue, and performing degassing treatment to obtain a transparent touch panel 1.

[0054] Specifically, the cutting process includes: using a cutter or a die-cutting machine to cut the touch layer having the OCA optical adhesive to obtain a touch layer having a specific shape.

[0055] Specifically, the machine used in the degassing treatment is a degassing machine.

[0056] In some embodiments, the second transparent layer 108 is a glass transparent layer.

[0057] In some embodiments, the material of the second transparent layer 108 includes at least one of PC, acrylic, and glass. Preferably, the material of the second transparent layer 108 is glass.

[0058] Specifically, the material of the second transparent layer 108 includes at least one of blue glass, white glass and ultra-clear glass.

[0059] In some embodiments, an anti-fingerprint coating is provided on a surface of the first transparent layer 104 away from the touch layer 106 and / or a surface of the second transparent layer 108 away from the touch layer 106 .

[0060] In some embodiments, the transparent touch panel 1 is T-shaped, including at least a transverse portion 109 and a vertical portion 110 . Providing the transparent touch panel 1 with a T-shape can improve the stability of the transparent touch switch.

[0061] Specifically, along the length of the transparent touch panel 1, the length L1 of the horizontal portion 109 and the length L2 of the vertical portion 110 satisfy the following relationship: 1 / 90 ≤ L1 / L2 ≤ 1 / 36. Because the width of the horizontal portion 109 is relatively small, it is relatively weak. If it is too long, it will easily break. This arrangement ensures that the horizontal portion 109 does not occupy too much space when the transparent touch panel 1 is installed in the housing and that the horizontal portion 109 is strong. It also ensures that the transparent touch panel 1 is not easily detached after installation, thereby ensuring stability.

[0062] In some embodiments, a first chamfered structure 101 and a second chamfered structure 102 are provided on the transparent touch panel 1 .

[0063] Specifically, the edge of the transparent touch panel 1 away from the light emitting assembly 2 is chamfered to obtain the transparent touch panel 1 having the first chamfer structure 101 and the second chamfer structure 102 .

[0064] Specifically, the R corner radius of the first chamfered structure 101 and the second chamfered structure 102 satisfies: R ≥ 2 mm. This not only satisfies the aesthetics but also ensures that it is not easily bumped by the user. In addition, the R corner design increases the strength of the transparent touch panel 1 and prevents the panel itself from being easily broken by bumps.

[0065] Specifically, the chamfering process may be a frosted chamfering process or a polished chamfering process, which can ensure uniformity of the light source from the light emitting component to the transparent touch panel 1 .

[0066] In some embodiments, all or part of the corners of the transparent touch panel 1 may be configured as chamfered structures.

[0067] Specifically, the angle where the horizontal portion 109 and the vertical portion 110 of the T-shaped touch panel 1 intersect is a curved chamfer. The curved chamfer can fit the housing for easy installation, and the smooth angle transition increases the strength of the transparent touch panel 1 to prevent the panel from being easily broken by bumps.

[0068] In some embodiments, the transparent touch panel 1 includes an icon 103 , and the icon 103 is disposed on a side surface of the first transparent layer 104 .

[0069] Specifically, the icon 103 can be provided on one side surface of the first transparent layer 104 by means of silk screen printing or engraving.

[0070] In some embodiments, the icons of the transparent touch panel 1 are disposed on a side surface of the touch layer 106 .

[0071] Specifically, the icon 103 may be provided on one side surface of the touch layer 106 by silk screen printing.

[0072] In some embodiments, the icon 103 may be provided on the transparent touch panel 1 by using a laser inscription process.

[0073] In some embodiments, the light-shielding layer 3 includes at least one light-transmitting portion, which corresponds to the logo area of ​​the transparent touch panel 1. Specifically, the light-transmitting portion is provided above or below the logo area of ​​the transparent touch panel 1 and is used to illuminate the light from the light-emitting component 2 onto the logo area of ​​the transparent touch panel 1. By providing the light-transmitting portion on the light-shielding layer 3, the light emitted by the light-emitting component 2 can be mostly illuminated onto the logo area of ​​the transparent touch panel 1.

[0074] In some embodiments, the transparent touch switch further includes a control circuit board 4 connected to the light-emitting assembly 2. The base 12 is recessed to form a receiving groove, and the control circuit board 4 is positioned within the receiving groove. When the control circuit board 4 is mounted on the base 12, the distance between the control circuit board 4 and the transparent touch panel 1 is relatively short, enabling better reception of electrical signals from the touch layer of the transparent touch panel 1, thereby increasing the sensitivity of the transparent touch switch.

[0075] Specifically, a plurality of light-emitting components 2 are connected to the control circuit board 4 , the light-shielding layer 3 includes a plurality of light-transmitting portions, and the plurality of light-emitting components 2 correspond to the plurality of light-transmitting portions in a one-to-one manner.

[0076] In some embodiments, the control circuit board 4 is electrically connected to the light-emitting assembly 2 and the transparent touch panel 1. The control circuit board 4 is electrically connected to the light-emitting assembly 2 and the transparent touch panel 1 so that the control circuit board 4 controls the lighting and extinguishing of corresponding key marks on the transparent touch panel 1 according to the received electrical signals.

[0077] In some embodiments, the light-emitting assembly 2 includes multiple light-emitting elements, each of which is a spherical lamp bead. Setting the light-emitting elements as spherical lamp beads reduces the light-emitting angle of the light-emitting assembly 2 and reduces the cross-lighting, further improving the key distinction of the transparent touch panel 1.

[0078] In some embodiments, the light-emitting element is an ordinary lamp bead.

[0079] In some embodiments, the light-shielding layer 3 includes at least one light-shielding portion, which corresponds to the logo area of ​​the transparent touch panel 1. Specifically, the light-shielding portion is disposed above or below the non-logo area of ​​the transparent touch panel 1 to block light emitted by the light-emitting assembly 2 so that the light is directed onto the logo area of ​​the transparent touch panel 1. Providing the light-shielding portion on the light-shielding layer 3 prevents light from being directed onto the non-logo area of ​​the transparent touch panel 1, thereby improving the distinction between adjacent buttons on the transparent touch panel 1 and enhancing the user experience.

[0080] Specifically, the light shielding layer 3 includes a plurality of light shielding portions, each of which is arranged around each light-transmitting portion to form a plurality of light shielding areas.

[0081] In some embodiments, the light-shielding layer 3 includes a first light-shielding layer and a second light-shielding layer. The first light-shielding layer is provided with four light-transmitting portions and four light-shielding portions, and the second light-shielding layer is provided with three light-transmitting portions and three light-shielding portions.

[0082] In some embodiments, the light shielding layer 3 is made of foam or plastic.

[0083] Specifically, the light shielding layer 3 is made of foam.

[0084] In some embodiments, the light shielding layer 3 is fixedly connected to the control circuit board 4 .

[0085] In some embodiments, the transparent touch switch further includes a fixing assembly comprising a fixing base 11, a base 12 connected to the fixing base 11, and a buckle 13 disposed on the base 12. The fixing base 11 is provided with a mounting slot, through which one side of the transparent touch panel 1 passes and is fixedly connected to the buckle 13. This method of fixing the transparent touch panel 1 facilitates installation and removal.

[0086] Specifically, both sides of the transparent touch panel 1 extend along the length direction to form a first mounting portion and a second mounting portion, and the clip 13 includes a first clip, a second clip and a third clip arranged along the length direction of the fixing base 11. The first mounting portion of the transparent touch panel 1 is clipped with the first clip, the second mounting portion is clipped with the second clip, and the middle part of one side of the transparent touch panel 1 is clipped with the third clip.

[0087] Specifically, the first buckle, the second buckle and the third buckle are fixedly connected to the control circuit board 4 respectively.

[0088] In some embodiments, the fixing base 11 is provided with a first glue groove and a second glue groove on one side of the buckle 13. One side surface of the first glue groove is connected to one side surface of the transparent touch panel 1 by glue, and one side surface of the second glue groove is connected to one side surface of the transparent touch panel 1 by glue. This arrangement can make the transparent touch panel 1 more stable.

[0089] In some embodiments, the fixing assembly also includes a connecting piece, and a mounting hole for accommodating the connecting piece is provided in the receiving groove of the base 12, and a first through hole corresponding to the position of the mounting hole is provided on the fixing seat 11. The connecting piece passes through the first through hole and the second through hole in sequence and then extends into the mounting hole to connect the base 12 and the fixing seat 11.

[0090] Specifically, a third through hole corresponding to the position of the mounting hole is provided on the control circuit board 4. The connecting piece passes through the first through hole, the second through hole and the third through hole in sequence and then extends into the mounting hole to connect the fixing seat 11, the control circuit board 4 and the base 12.

[0091] In some embodiments, the transparent touch switch further includes a back plate 14 , which is fixedly connected to the base 12 .

[0092] Specifically, the back plate 14 is made of metal.

[0093] In some embodiments, the transparent touch switch further includes a seal 5, which is sleeved on the base 12. The seal 5 is provided on the transparent touch switch to protect the transparent touch switch from oil contamination, thereby improving the safety performance of the transparent touch switch and extending the service life of the transparent touch switch.

[0094] In some embodiments, the transparent touch switch includes a packaging member 6 , which is sleeved on a fixing seat 11 .

[0095] This embodiment further provides a range hood, comprising: the transparent touch switch described in any one of the above embodiments.

[0096] Specifically, the range hood includes a smoke collecting hood 100 and a smoke baffle 200 . The smoke collecting hood 100 is provided with a transparent touch switch described in any one of the above embodiments on a side facing the smoke baffle 200 .

[0097] Specifically, the control circuit board 4 of the transparent touch switch is electrically connected to the range hood. When a user presses a key, the control circuit board 4 illuminates the corresponding key icon on the transparent touch panel 1 based on the received electrical signal. Simultaneously, the control circuit board 4 issues a corresponding instruction to the range hood, causing the range hood to perform the corresponding action. The corresponding key icon illuminates, notifying the user that the range hood is in the operating state corresponding to the illuminated key icon.

[0098] The following describes specific embodiments of the present invention based on the above technical solutions.

[0099] Example 1

[0100] This embodiment provides a transparent touch switch, please refer to Figure 1 , comprising: a transparent touch panel 1, the transparent touch panel 1 being provided with a marking area and an unmarked area, and the marking area being provided with a button marking;

[0101] The light emitting component 2 is provided on one side of the peripheral edge of the transparent touch panel 1 and is used to emit light so that the light is irradiated on the transparent touch panel 1 so that the button logo is displayed on the transparent touch panel 1;

[0102] The light shielding layer 3 is provided between the transparent touch panel 1 and the light emitting component 2 , and is used to limit the irradiation range of the light emitted by the light emitting component 2 so that the light is irradiated on the marking area of ​​the transparent touch panel 1 .

[0103] The transparent touch panel 1 includes a first transparent layer 104 , which is a glass transparent layer.

[0104] The material of the first transparent layer 104 includes at least one of PC, acrylic, and glass. Preferably, the material of the first transparent layer 104 is glass.

[0105] Specifically, the material of the first transparent layer 104 includes at least one of blue glass, white glass and ultra-clear glass.

[0106] The transparent touch panel 1 includes a touch layer 106 for sensing the action of a user's finger pressing a key and generating an electrical signal.

[0107] The transparent touch panel 1 includes a silver paste line, one end of which is connected to the touch layer 106 , and the other end of which extends from the bottom of the touch layer 106 to the control circuit board 4 and is connected to the control circuit board 4 .

[0108] The touch layer 106 includes a conductive film and a substrate.

[0109] Specifically, the conductive film includes at least one of an indium tin oxide film, a nanosilver film and a PeDot film, and the substrate is a PET film.

[0110] The transparent touch panel 1 further includes a second transparent layer 108 and a touch layer 106 . A first optical adhesive layer 105 is sandwiched between the first transparent layer 104 and the touch layer 106 . A second optical adhesive layer 107 is sandwiched between the second transparent layer 108 and the touch layer 106 .

[0111] Specifically, the first optical adhesive layer 105 and the second optical adhesive layer 107 are both formed by curing at least one of OCA optical adhesive, LOCA water adhesive, SCA optical adhesive, COF optical adhesive, foam adhesive and double-sided tape; preferably, the first optical adhesive layer 105 and the second optical adhesive layer 107 are both formed by curing OCA optical adhesive.

[0112] Specifically, the first transparent layer 104 and the touch layer 106 are bonded together by OCA optical adhesive, and the second transparent layer 108 and the touch layer 106 are bonded together by OCA optical adhesive.

[0113] The preparation method of the transparent touch panel 1 includes: coating OCA optical adhesive on both sides of the touch layer 106 to obtain a touch layer having the OCA optical adhesive, then cutting the touch layer to obtain a touch layer having a specific shape, then bonding the first transparent layer 104 and the second transparent layer 108 to both sides of the touch layer having the specific shape to obtain a pre-treated touch layer, and degassing the pre-treated touch layer to obtain the transparent touch panel 1.

[0114] Specifically, the cutting process includes: using a cutter or a die-cutting machine to cut the touch layer having the OCA optical adhesive to obtain a touch layer having a specific shape.

[0115] Specifically, the machine used in the degassing treatment is a degassing machine.

[0116] The second transparent layer 108 is a glass transparent layer.

[0117] The material of the second transparent layer 108 includes at least one of PC, acrylic, and glass. Preferably, the material of the second transparent layer 108 is glass.

[0118] Specifically, the material of the second transparent layer 108 includes at least one of blue glass, white glass and ultra-clear glass.

[0119] An anti-fingerprint coating is provided on a surface of the first transparent layer 104 away from the touch layer 106 and / or a surface of the second transparent layer 108 away from the touch layer 106 .

[0120] The transparent touch panel 1 is T-shaped, and includes at least a transverse portion 109 and a vertical portion 110 .

[0121] Specifically, along the length direction of the transparent touch panel 1 , the length L1 of the horizontal portion 109 and the length L2 of the vertical portion 110 satisfy the following relationship: 1 / 90≤L1 / L2≤1 / 36.

[0122] The transparent touch panel 1 is provided with a first chamfered structure 101 and a second chamfered structure 102 .

[0123] Specifically, the edge of the transparent touch panel 1 away from the light emitting assembly 2 is chamfered to obtain the transparent touch panel 1 having the first chamfer structure 101 and the second chamfer structure 102 .

[0124] Specifically, the R corner radius of the first chamfered structure 101 and the second chamfered structure 102 satisfies: R≥2mm.

[0125] Specifically, the chamfering process may be a frosted chamfering process or a polished chamfering process.

[0126] The transparent touch panel 1 includes an icon 103 , which is disposed on a side surface of the first transparent layer 104 .

[0127] Specifically, the icon 103 can be provided on one side surface of the first transparent layer 104 by means of silk screen printing or engraving.

[0128] The light shielding layer 3 includes at least one light-transmitting portion, which corresponds to the logo area of ​​the transparent touch panel 1 and is used to irradiate the light of the light-emitting component 2 onto the logo area of ​​the transparent touch panel 1 .

[0129] Specifically, the light-transmitting portion is disposed above / below the logo area of ​​the transparent touch panel 1 .

[0130] The transparent touch switch further includes a control circuit board 4 connected to the light emitting component 2 . The base 12 is recessed to form a receiving groove, and the control circuit board 4 is placed in the receiving groove.

[0131] Specifically, a plurality of light-emitting components 2 are connected to the control circuit board 4 , the light-shielding layer 3 includes a plurality of light-transmitting portions, and the plurality of light-emitting components 2 correspond to the plurality of light-transmitting portions in a one-to-one manner.

[0132] The control circuit board 4 is electrically connected to the light emitting component 2 and the transparent touch panel 1 .

[0133] The light-emitting assembly 2 includes a plurality of light-emitting parts, and the light-emitting parts are ball-head lamp beads.

[0134] The light shielding layer 3 includes at least one light shielding portion corresponding to the logo area of ​​the transparent touch panel 1 and configured to shield the light emitted by the light emitting component 2 so as to illuminate the logo area of ​​the transparent touch panel 1 .

[0135] Specifically, the light shielding portion is disposed above or below the non-logo area of ​​the transparent touch panel 1 .

[0136] Specifically, the light shielding layer 3 includes a plurality of light shielding portions, each of which is arranged around each light-transmitting portion to form a plurality of light shielding areas.

[0137] The light-shielding layer 3 includes a first light-shielding layer and a second light-shielding layer. The first light-shielding layer is provided with four light-transmitting portions and four light-shielding portions, and the second light-shielding layer is provided with three light-transmitting portions and three light-shielding portions.

[0138] The light shielding layer 3 is made of foam or plastic.

[0139] Specifically, the light shielding layer 3 is made of foam.

[0140] The light shielding layer 3 is fixedly connected to the control circuit board 4 .

[0141] The transparent touch switch also includes a fixing assembly, which includes a fixing seat 11, a base 12 connected to the fixing seat 11, and a buckle 13 set on the base 12. The fixing seat 11 is provided with a mounting groove, and one side of the transparent touch panel 1 passes through the mounting groove and is fixedly connected to the buckle 13.

[0142] Specifically, both sides of the transparent touch panel 1 extend along the length direction to form a first mounting portion and a second mounting portion, and the clip 13 includes a first clip, a second clip and a third clip arranged along the length direction of the fixing base 11. The first mounting portion of the transparent touch panel 1 is clipped with the first clip, the second mounting portion is clipped with the second clip, and the middle part of one side of the transparent touch panel 1 is clipped with the third clip.

[0143] Specifically, the first buckle, the second buckle and the third buckle are fixedly connected to the control circuit board 4 respectively.

[0144] The fixing base 11 is provided with a first glue groove and a second glue groove on one side of the buckle 13 . One side surface of the first glue groove is connected to one side surface of the transparent touch panel 1 by glue, and one side surface of the second glue groove is connected to one side surface of the transparent touch panel 1 by glue.

[0145] The fixing assembly also includes a connecting piece. The accommodating groove of the base 12 is provided with a mounting hole for accommodating the connecting piece. The fixing seat 11 is provided with a first through hole corresponding to the position of the mounting hole. The connecting piece passes through the first through hole and the second through hole in sequence and then extends into the mounting hole to connect the base 12 and the fixing seat 11.

[0146] Specifically, a third through hole corresponding to the position of the mounting hole is provided on the control circuit board 4. The connecting piece passes through the first through hole, the second through hole and the third through hole in sequence and then extends into the mounting hole to connect the fixing seat 11, the control circuit board 4 and the base 12.

[0147] The transparent touch switch further includes a back plate 14 , which is fixedly connected to the base 12 .

[0148] Specifically, the back plate 14 is made of metal.

[0149] The transparent touch switch further includes a sealing member 5 , which is sleeved on the base 12 .

[0150] The transparent touch switch includes a packaging component 6 , which is sleeved on a fixing seat 11 .

[0151] Although the present invention has been described through preferred embodiments, the present invention is not limited to the embodiments described herein, and includes various changes and modifications that may be made without departing from the scope of the present invention.

[0152] In this document, directional terms such as "front," "back," "upper," and "lower" are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended solely for clarity and convenience in describing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this utility model.

[0153] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other.

[0154] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A transparent touch switch, characterized in that: include: A transparent touch panel (1), wherein a marking area and an unmarked area are provided on the transparent touch panel (1), and a button marking is provided on the marking area; a light-emitting component (2), the light-emitting component (2) being arranged on one side of the transparent touch panel (1) and being used for emitting light and irradiating the light onto the transparent touch panel (1) so that the button mark is displayed on the transparent touch panel (1); A light shielding layer (3) is provided between the transparent touch panel (1) and the light emitting component (2) and is used to limit the irradiation range of light emitted by the light emitting component (2) so that the light is irradiated on the marking area of ​​the transparent touch panel (1).

2. The transparent touch switch according to claim 1, characterized in that: The transparent touch panel (1) comprises a first transparent layer (104), and the first transparent layer (104) is a glass transparent layer.

3. The transparent touch switch according to claim 1, characterized in that: The transparent touch panel (1) is in a T-shape.

4. The transparent touch switch according to claim 3, characterized in that: The transparent touch panel (1) comprises at least a transverse portion (109) and a vertical portion (110), and along the length direction of the transparent touch panel (1), a length L1 of the transverse portion (109) and a length L2 of the vertical portion (110) satisfy the following relationship: 1 / 90≤L1 / L2≤1 / 36.

5. The transparent touch switch according to claim 1, characterized in that: The light-shielding layer (3) comprises at least one light-transmitting portion, the light-transmitting portion corresponding to the identification area of ​​the transparent touch panel (1) and used for irradiating the light of the light-emitting component (2) onto the identification area of ​​the transparent touch panel (1).

6. The transparent touch switch according to claim 1, characterized in that: The light shielding layer (3) comprises at least one light shielding portion, the light shielding portion corresponding to the non-marking area of ​​the transparent touch panel (1) and used for shielding the light emitted by the light emitting component (2) so that the light is irradiated on the marking area of ​​the transparent touch panel (1).

7. The transparent touch switch according to claim 1, characterized in that: The transparent touch switch further comprises a fixing assembly, the fixing assembly comprising a fixing seat (11), a base (12) connected to the fixing seat (11), and a buckle (13) arranged on the base (12); the fixing seat (11) is provided with a mounting groove, and one side of the transparent touch panel (1) passes through the mounting groove and is fixedly connected to the buckle (13).

8. The transparent touch switch according to claim 7, characterized in that: The transparent touch switch further comprises a control circuit board (4) connected to the light-emitting component (2); the base (12) is recessed to form a receiving groove, and the control circuit board (4) is placed in the receiving groove.

9. The transparent touch switch according to claim 7, characterized in that: The transparent touch switch further comprises a sealing member (5), wherein the sealing member (5) is sleeved on the base (12).

10. The transparent touch switch according to claim 1, characterized in that: The light-emitting assembly (2) comprises a plurality of light-emitting parts, and the light-emitting parts are ball-head lamp beads.

11. A range hood, characterized in that: The transparent touch switch comprises the transparent touch switch according to any one of claims 1 to 10.