Transparent touch switch

Abstract

The utility model relates to the technical field of touch control switches, in particular to a transparent touch control switch, which comprises a transparent touch control panel, a control circuit board and a shell, a cavity is arranged in the shell, the control circuit board is arranged in the cavity, and the transparent touch control panel is arranged in the cavity. The transparent touch panel comprises a first part located on the outer side of the shell and a second part located in an inner cavity of the shell, the area of the first part accounts for the preset proportion of the total area of the transparent touch panel, and the preset proportion is 60%-90%; according to the transparent touch panel, the preset proportion of the area of the first part to the total area of the transparent touch panel is limited, and the preset proportion is 60-90%, so that the fixing strength of the touch panel on the shell can be improved, meanwhile, the area of the first part can meet the touch operation experience requirement of a user, the pressure bearing capacity of the touch panel is also ensured, and the user experience is improved. And the service life of the transparent touch switch is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of touch switches, in particular to a transparent touch switch. 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 existing transparent touch switch used in range hoods includes a transparent touch panel and a shell, and the shell has a mounting groove. However, the transparent touch panel in the prior art is generally fixed at the edge of the mounting groove, and the display part of the touch panel located outside the fixing seat has a large area, which not only leads to weak fixing strength of the touch panel, but also makes the front pressure bearing capacity of the touch panel weak. When the user applies too much force to the display part of the panel during operation, the transparent touch panel may easily fall or even be damaged.

[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 transparent touch switch.

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

[0007] A transparent touch switch includes: a transparent touch panel, a control circuit board, and a housing. The housing has a cavity inside, and the control circuit board is disposed in the cavity. The transparent touch panel includes a first portion located outside the housing and a second portion located within the housing cavity. The area of ​​the first portion accounts for a preset proportion of the total area of ​​the transparent touch panel, and the preset proportion is 60%-90%.

[0008] In a possible implementation manner, a mounting structure is provided on the housing, the mounting structure is formed with a mounting groove, and the transparent touch panel can be embedded in the mounting groove.

[0009] In a possible embodiment, the shell is provided with a glue dispensing groove for accommodating glue liquid, the glue dispensing groove is arranged adjacent to the mounting groove and is communicated with the mounting groove, and the second part of the transparent touch panel can be inserted into the glue dispensing groove.

[0010] In a possible implementation manner, at least one side of the mounting structure protrudes from the surface of the housing.

[0011] In a possible implementation manner, a packaging member is sleeved on the exterior of the shell, an opening is provided on the packaging member, and the mounting groove passes through the opening and protrudes from the surface of the packaging member.

[0012] In a possible implementation manner, the transparent touch panel passes through the opening and out of the packaging component.

[0013] In a possible implementation manner, the first portion can pass through the mounting slot to the second portion and be fixed in the mounting structure.

[0014] In a possible implementation, the height of the mounting groove is h1, the height of the first portion is h2, and the height of the transparent touch panel is H, satisfying h1 / h2<h2 / H.

[0015] In one possible implementation, the transparent touch panel is T-shaped and includes at least a horizontal portion and a vertical portion. Along the length direction of the transparent touch panel, the length L1 of the horizontal portion and the length L2 of the vertical portion satisfy: 1 / 90≤L1 / L2≤1 / 36.

[0016] In a possible implementation, the transparent touch panel includes a limiting structure, and the housing further includes a clamping member;

[0017] After the first part is able to pass through the installation slot, the limiting structure can be connected to the clamping member to fix the second part to the installation structure.

[0018] In a possible implementation manner, a chamfered structure is provided on one end of a side wall of the mounting groove facing the control circuit board.

[0019] In a possible implementation manner, an arc portion is provided on at least one edge of the first portion.

[0020] In one possible embodiment, the switch further includes a light-emitting component, a touch area for a button mark is provided on the first portion of the transparent touch panel, the touch area is covered with a conductive coating, the light-emitting component is arranged on the control circuit board and is located on the side of the transparent touch panel, and the light emitted by the light-emitting component is incident from the side of the transparent touch panel and illuminates the button mark.

[0021] In one possible implementation, the conductive coating includes at least one of an ITO coating, a polymer coating, and a nanosilver coating.

[0022] The utility model has the following beneficial effects:

[0023] The transparent touch switch of the utility model comprises: a transparent touch panel, a control circuit board, and a housing. The housing has a cavity inside, and the control circuit board is disposed in the cavity. The transparent touch panel comprises a first portion located outside the housing and a second portion located within the housing cavity. The area of ​​the first portion accounts for a preset proportion of the total area of ​​the transparent touch panel, and the preset proportion is 60%-90%. By limiting the area of ​​the first portion to a preset proportion of the total area of ​​the transparent touch panel, wherein the preset proportion is 60%-90%, the fixing strength of the touch panel on the housing can be improved, while the area of ​​the first portion can also meet the user's touch operation experience requirements, and the pressure bearing capacity of the touch panel is guaranteed, thereby extending the service life of the transparent touch switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 : A schematic structural diagram of a transparent touch switch provided by an embodiment of the present disclosure;

[0026] Figure 2 : A schematic structural diagram of a transparent touch switch provided by an embodiment of the present disclosure;

[0027] Figure 3 : A front view of a transparent touch panel provided by an embodiment of the present disclosure;

[0028] Figure 4 : A side view of a transparent touch panel provided by an embodiment of the present disclosure;

[0029] Figure 5 : A cross-sectional view of a transparent touch switch provided by an embodiment of the present disclosure;

[0030] In the figure: 1-transparent touch panel, 10-first part, 11-second part, 2-control circuit board, 3-housing, 4-light-emitting part, 5-light-shielding part, 31-front shell, 32-back shell, 33-clamping part, 34-back plate, 35-sealing part, 36-packaging part, 101-first arc-shaped portion, 102-second arc-shaped portion, 103-icon, 104-first transparent layer, 105-first optical adhesive layer, 106-touch layer, 107-second optical adhesive layer, 108-second transparent layer, 109-transverse part, 110-first limiting structure, 111-second limiting structure, 301-mounting groove, 302-glue dispensing groove, 303-first chamfer structure, 304-second chamfer structure. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] The following describes the embodiments with reference to the accompanying drawings, which do not limit the disclosure of the claims.

[0034] The values ​​in this application can be measured directly or indirectly using a measuring instrument. The projected area can be simulated using a laser or other similar device to simulate the projected boundary, and then the relevant length or angle data can be measured using a measuring instrument, and then the corresponding values ​​can be calculated. Furthermore, the relevant descriptions in this application are all for the range hood in normal use, that is, when the range hood is mounted on a wall.

[0035] The following is combined with Figure 1 The transparent touch switch provided by the embodiment of the present invention includes:

[0036] A transparent touch panel 1, a control circuit board 2, and a housing 3 are provided with a cavity inside the housing 3, and the control circuit board 2 is disposed in the cavity. The transparent touch panel 1 includes a first portion 10 located outside the housing 3 and a second portion 11 located within the inner cavity of the housing 3. The area of ​​the first portion 10 accounts for a preset proportion of the total area of ​​the transparent touch panel 1, and the preset proportion is 60%-90%. The upper limit of the preset proportion can be, but is not limited to, 90%, 89%, 88%, etc., and the lower limit of the preset proportion can be, but is not limited to, 60%, 61%, 62%, etc.; it is understandable that the preset proportion can also be any point value within the above range, which is not enumerated here. Preferably, the preset proportion is 65-85%. Further preferably, the preset proportion is 70%. By limiting the area of ​​the first portion 10 to a predetermined ratio of 60-90% of the total area of ​​the transparent touch panel 1, the fixing strength of the touch panel on the housing 3 can be improved, while the area of ​​the first portion 10 can also meet the user's touch operation experience requirements, and the pressure-bearing capacity of the touch panel is also guaranteed, thereby extending the service life of the transparent touch switch. On the other hand, a control circuit board is generally installed inside the cavity, which generates heat. The second portion 11 located inside the cavity will be exposed to more heat. In order to reduce the heat felt by the user on the transparent touch panel, this can be achieved by reducing the proportion of the second portion 11 and increasing the proportion of the first portion 10.

[0037] In some embodiments, the transparent touch panel 1, the control circuit board 2, and the housing 3 are connected to each other, the plane on which the control circuit board 2 is located intersects the plane on which the transparent touch panel 1 is located, and the orthographic projection area of ​​the transparent touch panel 1 on the control circuit board 2 is less than a first preset ratio of the total area of ​​the control circuit board 2, wherein the first preset ratio is 1 / 15-1 / 7. The upper limit of the first preset ratio may be, but is not limited to, 1 / 7, 2 / 7, 3 / 7, etc., and the lower limit of the first preset ratio may be, but is not limited to, 1 / 15, 2 / 15, 3 / 15, etc.; it is understood that the first preset ratio can also be any value within the above range, which is not enumerated here. By limiting the orthographic projection area of ​​the transparent touch panel on the control circuit board to a first preset ratio less than the total area of ​​the control circuit board, and limiting the first preset ratio to 1 / 15-1 / 7, the usable space on the control circuit board is expanded, allowing more components to be placed on the control circuit board, thereby improving the performance, function, and reliability of the circuit, significantly improving the overall performance of the range hood and improving the user experience. At the same time, it is also possible to place fewer lamp beads on the control circuit board, reducing the cost of the transparent touch switch. This configuration can also reduce the contact area between the transparent touch panel and the control circuit board. Because the various components installed on the control circuit board emit heat during use, reducing the contact area can reduce the heat transferred from the control circuit board to the transparent touch panel. Preferably, the first preset ratio is 1 / 11-1 / 9. More preferably, the first preset ratio is 1 / 9. The orthographic projection area of ​​the transparent touch panel 1 on the control circuit board 2 refers to the projected area of ​​the transparent touch panel 1 on the control circuit board 2 in a direction perpendicular to the plane on which the control circuit board 2 is located. The total area of ​​the control circuit board refers to the projected area of ​​the control circuit board 2 in the same projection direction as the orthographic projection direction of the transparent touch panel 1 on the control circuit board 2.

[0038] In some embodiments, an acute angle α exists between the control circuit board 2 and the transparent touch panel 1, satisfying 60°≤α<90°. The plane on which the control circuit board 2 resides is not necessarily perpendicular to the plane on which the transparent touch panel 1 resides; the two can be tilted and intersected at a certain angle. When the control circuit board 2 is placed horizontally and the transparent touch panel 1 is perpendicular to it at 90°, user operation may be inconvenient (similar to an ergonomically unsuitable angle). When the transparent panel is tilted at a certain angle, the user can operate it more conveniently. At the same time, the tilt angle cannot be too small to affect the user's field of view of the buttons. The control circuit board can also be tilted, but the angle with the horizontal plane should be as small as possible, thereby saving space overall.

[0039] In some embodiments, the housing 3 is provided with a mounting structure, which is formed with a mounting groove 301, and the transparent touch panel 1 can be embedded in the mounting groove 301. This arrangement makes it easier to disassemble and install the transparent touch panel 1.

[0040] In some embodiments, the housing 3 is provided with a glue dispensing groove 302 for accommodating glue. The glue dispensing groove 302 is arranged adjacent to the mounting groove 301 and is in communication with the mounting groove 301. The second portion 11 of the transparent touch panel 1 can be inserted into the glue dispensing groove 302. By filling the glue dispensing groove 302 with glue, the fixing strength between the transparent touch panel 1 and the housing 3 can be increased. At the same time, due to the gap between the mounting groove 301 and the transparent touch panel 1, substances such as water vapor or oil may enter the cavity of the housing 3 through the gap, causing damage to the transparent touch switch. The glue layer solidified in the glue dispensing groove 302 can further seal the gap between the mounting groove 301 and the transparent touch panel 1, thereby preventing substances such as water vapor or oil from entering the cavity, thereby extending the service life of the transparent touch switch.

[0041] In some embodiments, at least one side of the mounting structure protrudes from the surface of the housing 3. This arrangement can increase the contact area between the transparent touch panel 1 and the mounting structure, thereby making the installation of the transparent touch panel 1 more stable.

[0042] Specifically, the side of the mounting structure facing the first portion 10 protrudes from the surface of the housing 3 .

[0043] In some embodiments, the first portion 10 can pass through the mounting slot 301 to the second portion 11 and be fixed to the mounting structure. This installation method, from the interior of the housing 3 to the exterior of the housing 3, can make the transparent touch panel 1 more stable. The portion of the transparent touch panel 1 located within the mounting slot 301 also constitutes the second portion 11.

[0044] In some embodiments, the transparent touch panel 1 includes a limiting structure, and the housing 3 further includes a clamping member 33; after the first portion 10 can pass through the mounting groove 301, the limiting structure can be connected to the clamping member 33 to fix the second portion 11 to the mounting structure.

[0045] In some embodiments, the transparent touch panel 1 includes at least two limiting structures, the at least two limiting structures include a first limiting structure 110 and a second limiting structure 111, the shell 3 includes at least three clamping parts 33, the at least three clamping parts 33 include a first clamping part, a second clamping part and a third clamping part, the first limiting structure 110 of the transparent touch panel 1 is clamped with the first clamping part, the second limiting structure 111 is clamped with the second clamping part, and the middle part of one side of the transparent touch panel 1 is clamped with the third clamping part.

[0046] Specifically, the first clamping member, the second clamping member and the third clamping member are fixedly connected to the control circuit board 2 respectively.

[0047] In some embodiments, the housing 3 includes a front shell 31 and a rear shell 32 . The rear shell 32 is recessed to form a receiving groove, and the control circuit board 2 is placed in the receiving groove.

[0048] In some embodiments, the shell 3 also includes a connecting piece, and a mounting hole for accommodating the connecting piece is provided in the receiving groove of the rear shell 32. A first through hole corresponding to the position of the mounting hole is provided on the front shell 31. The connecting piece passes through the first through hole and extends into the mounting hole to connect the rear shell 32 and the front shell 31.

[0049] Specifically, a second through hole corresponding to the mounting hole is provided on the control circuit board 2 , and the connector passes through the first through hole and the second through hole in sequence and then extends into the mounting hole to connect the front shell 31 , the control circuit board 2 and the rear shell 32 .

[0050] In some embodiments, the transparent touch switch further includes a back plate 34 , which is fixedly connected to the rear housing 32 .

[0051] Specifically, the back plate 34 is made of metal.

[0052] In some embodiments, the transparent touch switch further includes a seal 35, which is sleeved on the rear housing 32. 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.

[0053] In some embodiments, a packaging member 36 is sleeved on the outside of the housing 3 . The packaging member 36 is provided with an opening, and the mounting groove 301 passes through the opening and protrudes from the surface of the packaging member 36 .

[0054] In some embodiments, the transparent touch panel 1 passes through the opening and out of the packaging member 36. The control circuit board 2 is located within the inner cavity of the housing 3, generating heat. Heat from the housing 3 and its inner cavity is transferred through objects to the transparent touch panel 1, causing it to heat up and affecting the user experience. Therefore, disposing the packaging member 36 outside the housing 3 can expand the heat dissipation of the housing 3, allowing some of the heat to be transferred to the packaging member 36, thereby reducing the heat transferred to the transparent touch panel 1. Furthermore, the mounting slot 301 passes through the opening of the packaging member 36, allowing the opening of the packaging member 36 to surround the mounting slot 301 as another component, thereby enhancing the strength of the mounting slot 301.

[0055] In some embodiments, a chamfered structure is provided on one end of the side wall of the mounting groove 301 facing the control circuit board 2 .

[0056] In some embodiments, at least two chamfered structures are provided on the side wall of the mounting groove 301 at one end facing the control circuit board 2 , and the at least two chamfered structures include a first chamfered structure 303 and a second chamfered structure 304 .

[0057] Specifically, the end of the side wall of the mounting groove 301 facing the control circuit board 2 is chamfered to obtain the mounting groove 301 having the first chamfer structure 303 and the second chamfer structure 304 .

[0058] Specifically, the chamfering process may be a frosted chamfering process or a polished chamfering process.

[0059] In some embodiments, the transparent touch panel 1 is T-shaped and includes at least a transverse portion 109 and a vertical portion. Along the length of the transparent touch panel 1, the length L1 of the transverse portion 109 and the length L2 of the vertical portion satisfy the following relationship: 1 / 90 ≤ L1 / L2 ≤ 1 / 36. Because the width of the transverse portion 109 is relatively small, its strength is relatively weak. If it is too long, it will easily break. This arrangement ensures that the transverse portion 109 does not occupy too much space when the transparent touch panel 1 is installed with the housing 3 and that the transverse portion 109 is relatively strong. It also ensures that the transparent touch panel 1 is not easily detached after installation, thereby ensuring stability.

[0060] In some embodiments, the vertical portion may be at least one of the remaining sides of the transparent touch panel 1 except the horizontal portion 109 .

[0061] In some embodiments, at least one edge of the first portion 10 is provided with an arc portion. The arc portion can match the housing 3 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.

[0062] In some embodiments, a first arc-shaped portion 101 and a second arc-shaped portion 102 are respectively provided on two edges of the first portion 10 .

[0063] Specifically, the edge of the transparent touch panel 1 away from the light-emitting element 4 is chamfered to obtain the transparent touch panel 1 having the first curved portion 101 and the second curved portion 102 .

[0064] Specifically, the R corner radius of the first curved portion 101 and the first curved portion 101 satisfies: R≥2mm. 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 to prevent 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 irradiated from the light emitting element 4 to the transparent touch panel 1 .

[0066] In some embodiments, the switch further includes a light-emitting element 4. A touch area for key markings is provided on the first portion 10 of the transparent touch panel 1. The touch area is covered with a conductive coating. The light-emitting element 4 is disposed on the control circuit board 2 and is located on the side of the transparent touch panel 1. Light emitted by the light-emitting element 4 enters from the side of the transparent touch panel 1 and illuminates the key markings. This arrangement ensures that the majority of the conductive coating of the transparent touch panel 1 is located outside the housing 3. By using side lighting, only the side of the panel is illuminated by the light-emitting element 4, rather than the entire touch surface being directly exposed to the strong light from the lamp beads (conventional touch panels generally have the icon area back-lit, with the entire icon area being exposed to the strong light from the lamp beads). This can greatly extend the service life of the conductive coating.

[0067] In some embodiments, the height of the mounting groove 301 is h1, the height of the first portion 10 is h2, and the height of the transparent touch panel 1 is H, satisfying h1 / h2<h2 / H. The height is defined as follows: the mounting groove 301 is provided on the outer surface of the housing 31 and protrudes from the outer surface of the housing 31. The height of the mounting groove 301 is the distance from the outer surface to the farthest end of the mounting groove 301 from the outer surface. The height of the transparent touch panel 1 is the height of the transparent touch panel 1 in the same direction as the extension direction. That is, when the outer surface of the housing 31 on which the mounting groove 301 is provided is planar, the height of the mounting groove 301 is the height in a direction perpendicular to the outer surface of the housing 31. The height of the mounting groove 301 should not be too long, otherwise the height of the first part 10 will be reduced, which will affect the usable area of ​​the button icon on the one hand, and on the other hand, the area of ​​direct contact between the mounting groove 301 and the transparent touch panel 1 will be too large, which will conduct more heat and affect the user experience; and the height of the first part 10 should not be too small as a percentage of the total height of the transparent touch panel 1, otherwise it will also affect the usable area of ​​the button icon, and the small proportion of the height of the first part 10 means that the second part 11 in the cavity accounts for a large proportion, the second part 11 is exposed to more heat, and will also conduct more heat to the first part 10, thereby affecting the user experience.

[0068] In some embodiments, the transparent touch panel 1 further includes a transparent layer, an optical adhesive layer, and a touch layer 106, with the optical adhesive layer being sandwiched between the transparent layer and the touch layer 106. The transparent layer, optical adhesive layer, and touch layer in the transparent touch panel 1 are all light-transmissive, making the transparent touch panel 1 appear transparent as a whole. When applied to a range hood, the resulting transparent touch switch not only enhances the range hood's aesthetics but also improves the user experience.

[0069] In some embodiments, the touch layer 106 can sense the user's finger pressing a key and generate an electrical signal, electrically connecting the control circuit board 2 to the light-emitting element 4 and the transparent touch panel 1. The control circuit board 2 is electrically connected to the light-emitting element 4 and the transparent touch panel 1, so that the control circuit board 2 controls the lighting and extinguishing of the corresponding key mark on the transparent touch panel 1 based on the received electrical signal.

[0070] In some embodiments, the touch layer 106 includes a conductive coating and a substrate, and the conductive coating is coated on the substrate to form a touch area on the transparent touch panel 1 .

[0071] In some embodiments, the conductive coating includes at least one of an ITO coating, a polymer coating, and a nanosilver coating. The conductive coating is configured to be a light-transmissive material, thereby improving the aesthetics of the transparent touch switch.

[0072] Specifically, the polymer coating is a PEDOT coating.

[0073] In some embodiments, the touch layer 106 is ITO glass.

[0074] In some embodiments, the thickness of the touch layer 106 is 0.1-0.2 mm. The upper limit of the thickness of the touch layer 106 may be, but is not limited to, 0.2 mm, 0.19 mm, 0.18 mm, etc., and the lower limit of the thickness of the touch layer 106 may be, but is not limited to, 0.1 mm, 0.11 mm, 0.12 mm, etc. It is understood that the thickness of the touch layer 106 can also be any value within the above range, which is not enumerated here. By limiting the thickness, the sensitivity of the transparent touch switch is guaranteed while also ensuring the strength of the touch layer 106 and increasing its service life.

[0075] In some embodiments, the orthographic projection area of ​​the optical adhesive layer on the control circuit board 2 is smaller than a second preset ratio of the total area of ​​the control circuit board 2, and the second preset ratio is 1 / 200-1 / 100. The upper limit value of the second preset ratio may be, but not limited to, 1 / 100, 2 / 100, 3 / 100, etc., and the lower limit value of the second preset ratio may be, but not limited to, 1 / 200, 2 / 200, 3 / 200, etc.; it can be understood that the second preset ratio can be any point value within the above range, which is not enumerated here. Preferably, the second preset ratio is 1 / 200-1 / 150. Further preferably, the second preset ratio is 1 / 200. With this setting, the orthographic projection area of ​​the transparent touch panel 1 on the control circuit board 2 can be further reduced, thereby allowing more space on the control circuit board 2 to place components.

[0076] 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 2 .

[0077] In some embodiments, 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 2 and is connected to the control circuit board 2 .

[0078] 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 .

[0079] 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.

[0080] In some embodiments, the icons of the transparent touch panel 1 are disposed on a side surface of the touch layer 106 .

[0081] Specifically, the icon 103 may be provided on one side surface of the touch layer 106 by silk screen printing.

[0082] In some embodiments, the icon 103 may be disposed on the touch layer 106 of the transparent touch panel 1 by using a laser inscription process.

[0083] In some embodiments, a gap d1 is defined between the transparent touch panel 1 and the control circuit board 2. The range of gap d1 is 0 < d1 ≤ 10 mm. The upper limit of the gap may be, but is not limited to, 10 mm, 9 mm, 8 mm, etc., and the lower limit may be, but is not limited to, 0 mm, 1 mm, 2 mm, etc. It is understood that the gap can also be any value within the aforementioned range, which is not enumerated here. By defining the gap between the transparent touch panel 1 and the control circuit board 2, space is provided for the light-emitting element 4 and the light-shielding element 5.

[0084] In some embodiments, the control circuit board 2 is provided with a mounting position, and the light emitting element 4 is embedded in the mounting position, and the mounting position can reduce the emission angle of the light emitting element 4. With this arrangement, the distinction between adjacent key patterns on the transparent touch panel 1 can be greatly improved.

[0085] Specifically, a mounting hole is provided on the control circuit board 2 to form a mounting position for mounting the light-emitting element 4 .

[0086] Specifically, the gap d2 between the transparent touch panel 1 and the control circuit board 2 is in the range of 0 < d2 ≤ 2 mm. It is understood that the gap can be any value within the above range, and no specific values ​​are provided here. By limiting the gap range, the light emitted by the light-emitting element 4 can be largely focused on the transparent touch panel 1.

[0087] In some embodiments, the mounting position surrounds the light-emitting element 4, and the height of the mounting position is at least 1.2 times the height of the light-emitting element 4. The higher the mounting position, the smaller the emission angle and the more concentrated the light. The height here refers to the height in a direction perpendicular to the control circuit board 2.

[0088] In some embodiments, the thickness of the control circuit board 2 is 1-2 mm. It is understandable that the thickness of the control circuit board 2 can be any value within the above range, which is not enumerated here.

[0089] In some embodiments, the control circuit board 2 is provided with a plurality of mounting locations, each of which corresponds to a touch area of ​​the transparent touch panel 1. Specifically, the mounting locations are provided above or below the touch area of ​​the transparent touch panel 1. The mounting locations can illuminate the touch area of ​​the transparent touch panel 1 with light from the light-emitting element 4.

[0090] Specifically, the transparent touch switch includes a plurality of light-emitting elements 4 , and the plurality of light-emitting elements 4 correspond one-to-one to a plurality of installation positions.

[0091] In some embodiments, the control circuit board 2 is further provided with at least one light-blocking portion, which corresponds to the non-touch area of ​​the transparent touch panel 1. Specifically, the light-blocking portion is disposed above or below the non-touch area of ​​the transparent touch panel 1. With this arrangement, the light-blocking portion can block light emitted by the light-emitting element 4, allowing the light to illuminate the touch area of ​​the transparent touch panel 1. Providing the light-blocking portion on the control circuit board 2 prevents light from illuminating the non-touch area of ​​the transparent touch panel 1, improving the distinction between adjacent buttons on the transparent touch panel 1 and thereby enhancing the user experience.

[0092] Specifically, the control circuit board 2 includes a plurality of light-shielding portions, each of which is arranged around each mounting position to form a plurality of light-shielding areas.

[0093] In some embodiments, the switch further includes a light shielding member 5 disposed on the transparent touch panel 1, and the light emitting member 4 is embedded in the light shielding member 5. The light shielding member 5 can reduce the emission angle of the light emitting member 4. This arrangement can greatly improve the distinction between adjacent key patterns on the transparent touch panel 1.

[0094] Specifically, a plurality of light-transmitting holes are opened on the light-shielding member 5 to form a light-transmitting portion for accommodating the light-emitting member 4 .

[0095] Specifically, the range of the gap d3 between the transparent touch panel 1 and the control circuit board 2 is 2<d3≤10mm. The upper limit of the gap between the transparent touch panel 1 and the control circuit board 2 can be, but is not limited to, 10mm, 9mm, 8mm, etc., and the lower limit of the gap between the transparent touch panel 1 and the control circuit board 2 can be, but is not limited to, 2mm, 3mm, 4mm, etc.; it is understandable that the gap between the transparent touch panel 1 and the control circuit board 2 can also be any point value within the above range, which is not enumerated here. By limiting this gap range, on the one hand, there is space to accommodate the light shielding member 5, and on the other hand, it can also ensure that the majority of the light emitted by the light-emitting member 4 is concentrated on the transparent touch panel 1.

[0096] In some embodiments, the light shielding member 5 is provided with multiple light-transmitting portions, each corresponding to the touch area of ​​the transparent touch panel 1. Specifically, the light-transmitting portions are provided above or below the touch area of ​​the transparent touch panel 1. With this arrangement, the light from the light-emitting member 4 can be irradiated onto the touch area of ​​the transparent touch panel 1.

[0097] Specifically, the transparent touch switch includes a plurality of light-emitting elements 4 , and the plurality of light-emitting elements 4 correspond one-to-one to the plurality of light-transmitting portions.

[0098] In some embodiments, the transparent touch panel 1 is provided with a non-touch area, and the light shielding member 5 includes at least one light shielding portion. The light shielding portion corresponds to the non-touch area of ​​the transparent touch panel 1. Specifically, the light shielding portion is disposed above or below the non-touch area of ​​the transparent touch panel 1. With this arrangement, the light shielding portion can block light emitted by the light-emitting element 4, allowing the light to illuminate the touch area of ​​the transparent touch panel 1. By providing the light shielding portion on the light shielding member 5, light can be prevented from illuminating the non-touch area of ​​the transparent touch panel 1, thereby improving the distinction between adjacent keys on the transparent touch panel 1 and enhancing the user experience.

[0099] Specifically, the light shielding member 5 includes a plurality of light shielding portions, each of which is disposed around each light-transmitting portion to form a plurality of light shielding areas.

[0100] In some embodiments, the light shielding member 5 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.

[0101] In some embodiments, the light shielding element 5 is made of foam or plastic.

[0102] Specifically, the material of the shading element 5 is foam.

[0103] In some embodiments, the shading member 5 is fixedly connected to the control circuit board 2 .

[0104] In some embodiments, the light emitting element 4 is a spherical lamp bead. Setting the light emitting element 4 as a spherical lamp bead makes the light emitting angle of the light emitting element 4 smaller and the cross-lighting degree weaker, further improving the key distinction of the transparent touch panel 1.

[0105] In some embodiments, the light emitting element 4 is a common lamp bead, which has a light emitting angle of up to 120° and needs to be used in conjunction with the light shielding element 5 .

[0106] In some embodiments, the thickness ratio between the transparent layer and the optical adhesive layer is 1:(8-12). Preferably, the thickness ratio between the transparent layer and the optical adhesive layer is 1:(9-11). Further preferably, the thickness ratio between the transparent layer and the optical adhesive layer is 1:10. By limiting this thickness ratio, the entire transparent touch panel 1 has a higher strength.

[0107] In some embodiments, the transparent touch panel 1 includes two transparent layers, including a first transparent layer 104 and a second transparent layer 108 . Both the first transparent layer 104 and the second transparent layer 108 are glass transparent layers.

[0108] In some embodiments, the first transparent layer 104 and the second transparent layer 108 are both made of at least one of PC, acrylic, and glass. Preferably, the first transparent layer 104 and the second transparent layer 108 are both made of glass. Using glass as the material for the first transparent layer 104 and the second transparent layer 108 increases the hardness of the transparent touch panel 1 and its high temperature resistance, thereby extending the service life of the transparent touch switch.

[0109] Specifically, the material of the first transparent layer 104 and the second transparent layer 108 includes at least one of blue glass, white glass and ultra-clear glass.

[0110] In some embodiments, the thickness of the optical adhesive layer is 0.125-0.3 mm. The upper limit of the thickness of the optical adhesive layer may be, but is not limited to, 0.3 mm, 0.29 mm, 0.28 mm, etc., and the lower limit of the thickness of the optical adhesive layer may be, but is not limited to, 0.125 mm, 0.126 mm, 0.127 mm, etc.; it is understood that the thickness of the optical adhesive layer can also be any value within the above range, which is not enumerated here. By limiting the thickness of the optical adhesive layer, the touch layer 106 and the transparent layer in the transparent touch panel 1 are more tightly bonded, and the transparent touch panel 1 is more stable.

[0111] 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 .

[0112] In some embodiments, the transparent touch panel 1 includes two optical adhesive layers, the two optical adhesive layers include a first optical adhesive layer 105 and a second optical adhesive layer 107, the first optical adhesive layer 105 is sandwiched between the first transparent layer 104 and the touch layer 106, and the second optical adhesive layer 107 is sandwiched between the second transparent layer 108 and the touch layer 106.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] Specifically, the machine used in the degassing treatment is a degassing machine.

[0118] In some embodiments, the preparation method of the transparent touch panel 1 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 the transparent touch panel 1.

[0119] 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.

[0120] Specifically, the machine used in the degassing treatment is a degassing machine.

[0121] Example 1

[0122] This embodiment provides a transparent touch switch, please refer to Figure 1-5 ,include:

[0123] A transparent touch panel 1, a control circuit board 2 and a shell 3, wherein a cavity is provided inside the shell 3, and the control circuit board 2 is arranged in the cavity. The transparent touch panel 1 includes a first portion 10 located on the outside of the shell 3 and a second portion 11 located in the inner cavity of the shell 3. The area of ​​the first portion 10 accounts for a preset proportion of the total area of ​​the transparent touch panel 1, and the preset proportion is 70%.

[0124] A transparent touch panel 1, a control circuit board 2 and a housing 3, the transparent touch panel 1 is connected to the housing 3, the plane where the control circuit board 2 is located intersects with the plane where the transparent touch panel 1 is located, and the orthographic projection area of ​​the transparent touch panel 1 on the control circuit board 2 is smaller than a first preset proportion of the total area of ​​the control circuit board 2, and the first preset proportion is 1 / 9.

[0125] There is an acute angle α between the control circuit board 2 and the transparent touch panel 1 , which satisfies 60°≤α<90°.

[0126] The housing 3 is provided with a mounting structure, which is formed with a mounting groove 301 , and the transparent touch panel 1 can be embedded in the mounting groove 301 .

[0127] The housing 3 is provided with a glue dispensing groove 302 for accommodating glue. The glue dispensing groove 302 is arranged adjacent to the mounting groove 301 and is communicated with the mounting groove 301 . The second portion 11 of the transparent touch panel 1 can be inserted into the glue dispensing groove 302 .

[0128] At least one side of the mounting structure protrudes from the surface of the housing 3 .

[0129] Specifically, the side of the mounting structure facing the first portion 10 protrudes from the surface of the housing 3 .

[0130] The first portion 10 can pass through the mounting groove 301 to the second portion 11 and be fixed in the mounting structure.

[0131] The transparent touch panel 1 includes at least two limiting structures, which include a first limiting structure 110 and a second limiting structure 111. The shell 3 includes at least three clamping parts 33, which include a first clamping part, a second clamping part and a third clamping part. The first limiting structure 110 of the transparent touch panel 1 is clamped with the first clamping part, the second limiting structure 111 is clamped with the second clamping part, and the middle part of one side of the transparent touch panel 1 is clamped with the third clamping part.

[0132] Specifically, the first clamping member, the second clamping member and the third clamping member are fixedly connected to the control circuit board 2 respectively.

[0133] The housing 3 includes a front shell 31 and a rear shell 32 . The rear shell 32 is recessed to form a receiving groove, and the control circuit board 2 is placed in the receiving groove.

[0134] The shell 3 also includes a connecting piece. A mounting hole for accommodating the connecting piece is provided in the receiving groove of the rear shell 32. A first through hole corresponding to the position of the mounting hole is provided on the front shell 31. The connecting piece passes through the first through hole and extends into the mounting hole to connect the rear shell 32 and the front shell 31.

[0135] Specifically, a second through hole corresponding to the mounting hole is provided on the control circuit board 2 , and the connector passes through the first through hole and the second through hole in sequence and then extends into the mounting hole to connect the front shell 31 , the control circuit board 2 and the rear shell 32 .

[0136] The transparent touch switch further includes a back plate 34 , which is fixedly connected to the rear housing 32 .

[0137] Specifically, the back plate 34 is made of metal.

[0138] The transparent touch switch further includes a sealing member 35 , which is sleeved on the rear housing 32 .

[0139] The outer portion of the housing 3 is provided with a packaging member 36 . The packaging member 36 is provided with an opening. The mounting groove 301 passes through the opening and protrudes from the surface of the packaging member 36 .

[0140] The transparent touch panel 1 passes through the opening and out of the packaging member 36 .

[0141] At least two chamfered structures are provided on the side wall of the mounting groove 301 at one end facing the control circuit board 2 . The at least two chamfered structures include a first chamfered structure 303 and a second chamfered structure 304 .

[0142] Specifically, the end of the side wall of the mounting groove 301 facing the control circuit board 2 is chamfered to obtain the mounting groove 301 having the first chamfer structure 303 and the second chamfer structure 304 .

[0143] Specifically, the chamfering process may be a frosted chamfering process or a polished chamfering process.

[0144] The transparent touch panel 1 is T-shaped and includes at least a transverse portion 109 and a vertical portion. Along the length direction of the transparent touch panel 1 , the length L1 of the transverse portion 109 and the length L2 of the vertical portion satisfy: 1 / 90≤L1 / L2≤1 / 36.

[0145] The vertical portion may be at least one of the remaining sides of the transparent touch panel 1 except the horizontal portion 109 .

[0146] A first arc-shaped portion 101 and a second arc-shaped portion 102 are respectively formed on two edges of the first portion 10 .

[0147] Specifically, the edge of the transparent touch panel 1 away from the light-emitting element 4 is chamfered to obtain the transparent touch panel 1 having the first curved portion 101 and the second curved portion 102 .

[0148] Specifically, the first arc-shaped portion 101 and the R corner radius of the first arc-shaped portion 101 meet: R ≥ 2 mm.

[0149] Specifically, the chamfering process may be a frosted chamfering process or a polished chamfering process.

[0150] The switch also includes a light-emitting element 4. A touch area with a button mark is provided on the first portion 10 of the transparent touch panel 1. The touch area is covered with a conductive coating. The light-emitting element 4 is arranged on the control circuit board 2 and is located on the side of the transparent touch panel 1. The light emitted by the light-emitting element 4 enters from the side of the transparent touch panel 1 and illuminates the button mark.

[0151] The height of the mounting groove 301 is h1, the height of the first portion 10 is h2, and the height of the transparent touch panel 1 is H, satisfying h1 / h2<h2 / H.

[0152] The transparent touch panel 1 further includes a transparent layer, an optical adhesive layer, and a touch layer 106 . The optical adhesive layer is sandwiched between the transparent layer and the touch layer 106 .

[0153] The touch layer 106 can sense the action of a user's finger pressing a key and generate an electrical signal to control the electrical connection between the circuit board 2, the light-emitting element 4, and the transparent touch panel 1.

[0154] The touch layer 106 includes a conductive coating and a substrate. The conductive coating is coated on the substrate to form a touch area on the transparent touch panel 1 .

[0155] The conductive coating includes at least one of an ITO coating, a polymer coating and a nano-silver coating.

[0156] Specifically, the polymer coating is a PEDOT coating.

[0157] The thickness of the touch layer 106 is 0.1-0.2 mm.

[0158] The orthographic projection area of ​​the optical adhesive layer on the control circuit board 2 is smaller than a second preset ratio of the total area of ​​the control circuit board 2 , and the second preset ratio is 1 / 200.

[0159] 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 2 and is connected to the control circuit board 2 .

[0160] The transparent touch panel 1 includes an icon 103 , which is disposed on a side surface of the first transparent layer 104 .

[0161] 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.

[0162] The control circuit board 2 is provided with a mounting position, and the light-emitting component 4 is embedded in the mounting position. The mounting position can reduce the emission angle of the light-emitting component 4.

[0163] Specifically, a mounting hole is provided on the control circuit board 2 to form a mounting position for mounting the light-emitting element 4 .

[0164] Specifically, there is a gap d2 between the transparent touch panel 1 and the control circuit board 2 , and the range of the gap d2 is 0<d2≤2mm.

[0165] The thickness of the control circuit board 2 is 1-2 mm.

[0166] The control circuit board 2 is provided with a plurality of mounting positions corresponding to the touch areas of the transparent touch panel 1 . Specifically, the mounting positions are arranged above / below the touch area of ​​the transparent touch panel 1 .

[0167] Specifically, the transparent touch switch includes a plurality of light-emitting elements 4 , and the plurality of light-emitting elements 4 correspond one-to-one to a plurality of installation positions.

[0168] The control circuit board 2 is further provided with at least one light shielding portion, which corresponds to the non-touch area of ​​the transparent touch panel 1 . Specifically, the light shielding portion is provided above / below the non-touch area of ​​the transparent touch panel 1 .

[0169] Specifically, the control circuit board 2 includes a plurality of light-shielding portions, each of which is arranged around each mounting position to form a plurality of light-shielding areas.

[0170] The light-emitting element 4 is a spherical lamp bead.

[0171] The thickness ratio between the transparent layer and the optical adhesive layer is 1:10.

[0172] The transparent touch panel 1 includes two transparent layers, including a first transparent layer 104 and a second transparent layer 108 . Both the first transparent layer 104 and the second transparent layer 108 are glass transparent layers.

[0173] The first transparent layer 104 and the second transparent layer 108 are both made of at least one of PC, acrylic, and glass. Preferably, the first transparent layer 104 and the second transparent layer 108 are both made of glass.

[0174] Specifically, the material of the first transparent layer 104 and the second transparent layer 108 includes at least one of blue glass, white glass and ultra-clear glass.

[0175] The thickness of the optical adhesive layer is 0.125-0.3mm.

[0176] 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 .

[0177] The transparent touch panel 1 includes two optical adhesive layers, including a first optical adhesive layer 105 and a second optical adhesive layer 107 . The first optical adhesive layer 105 is sandwiched between the first transparent layer 104 and the touch layer 106 , and the second optical adhesive layer 107 is sandwiched between the second transparent layer 108 and the touch layer 106 .

[0178] 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.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] Specifically, the machine used in the degassing treatment is a degassing machine.

[0183] 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.

[0184] 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.

[0185] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other.

[0186] 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, used in range hoods, characterized in that: include: A transparent touch panel (1), a control circuit board (2) and a housing (3), wherein a cavity is provided inside the housing (3), and the control circuit board (2) is arranged in the cavity; the transparent touch panel (1) comprises a first portion (10) located outside the housing (3) and a second portion (11) located in the inner cavity of the housing (3); the area of ​​the first portion (10) accounts for a preset proportion of the total area of ​​the transparent touch panel (1), and the preset proportion is 60%-90%.

2. The transparent touch switch according to claim 1, characterized in that: The housing (3) is provided with a mounting structure, the mounting structure being formed with a mounting groove (301), and the transparent touch panel (1) can be embedded in the mounting groove (301).

3. The transparent touch switch according to claim 2, characterized in that: The housing (3) is provided with a glue dispensing groove (302) for accommodating glue liquid. The glue dispensing groove (302) is arranged adjacent to the mounting groove (301) and is in communication with the mounting groove (301). The second portion (11) of the transparent touch panel (1) can be inserted into the glue dispensing groove (302).

4. The transparent touch switch according to claim 2, characterized in that: At least one side of the mounting structure protrudes from the surface of the housing (3).

5. The transparent touch switch according to claim 2, characterized in that: The shell (3) is externally sleeved with a packaging member (36), the packaging member (36) is provided with an opening, and the mounting groove (301) passes through the opening and protrudes from the surface of the packaging member (36).

6. The transparent touch switch according to claim 5, characterized in that: The transparent touch panel (1) passes through the opening and out of the packaging component (36).

7. The transparent touch switch according to any one of claims 2 to 6, characterized in that: The first part (10) can pass through the mounting groove (301) to the second part (11) and be fixed in the mounting structure.

8. The transparent touch switch according to claim 7, characterized in that: The height of the mounting groove (301) is h1, the height of the first portion (10) is h2, and the height of the transparent touch panel (1) is H, satisfying h1 / h2<h2 / H.

9. The transparent touch switch according to claim 1, characterized in that: The transparent touch panel (1) is T-shaped and comprises at least a transverse portion (109) and a vertical portion. Along the length direction of the transparent touch panel (1), the length L1 of the transverse portion (109) and the length L2 of the vertical portion satisfy the following relationship: 1 / 90≤L1 / L2≤1 / 36.

10. The transparent touch switch according to claim 7, characterized in that: The transparent touch panel (1) includes a limiting structure, and the housing (3) also includes a clamping member (33); After the first part (10) is able to pass through the installation slot (301), the limiting structure can be connected to the clamping member (33) to fix the second part (11) to the installation structure.

11. The transparent touch switch according to any one of claims 2 to 6, characterized in that: A chamfered structure is provided on one end of the side wall of the mounting groove (301) facing the control circuit board (2).

12. The transparent touch switch according to any one of claims 2 to 6, characterized in that: An arc portion is provided on at least one edge of the first part (10).

13. The transparent touch switch according to any one of claims 2 to 6, characterized in that: The switch further comprises a light-emitting element (4); a touch area for a key mark is provided on the first portion (10) of the transparent touch panel (1); the touch area is covered with a conductive coating; the light-emitting element (4) is arranged on the control circuit board (2) and is located on the side of the transparent touch panel; light emitted by the light-emitting element (4) enters from the side of the transparent touch panel (1) and illuminates the key mark.

14. The transparent touch switch according to claim 13, characterized in that: The conductive coating includes at least one of an ITO coating, a polymer coating and a nano silver coating.

Images