Keyboard and electronic equipment
By designing a flexible layer structure and conductive components, the problem of keyboard conductive lines breaking due to mechanical stress was solved, thus extending the keyboard's lifespan.
Patent Information
- Application Number
- CN202423323080.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During keyboard use, the conductive circuitry is prone to fatigue and breakage due to repeated mechanical stress, affecting its lifespan.
The design employs a flexible layer structure and conductive components. The conductive lines are separately located on both sides of the keycap. The conductive components are electrically connected by the deformation of the flexible layer, thus avoiding direct stretching of the lines by mechanical stress.
It extends the keyboard's lifespan, reduces mechanical fatigue in the conductive circuitry, and improves the keyboard's reliability.
Smart Images
Figure CN223809051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of keyboards, and particularly relates to a keyboard and an electronic device. BACKGROUND
[0002] As an instruction and data input device for user to operate electronic devices, a keyboard is widely used in electronic devices. In the related art, the keyboard usually comprises a keycap, a membrane structure and a conductive circuit, wherein the conductive circuit is used to transmit the electrical signal output by the signal output end to the signal input end when the key is pressed, and the system can determine whether the corresponding key is pressed by detecting the change of the current on the conductive circuit.
[0003] The problem of the above keyboard is that, during the use of the keyboard, part of the conductive circuit will be accelerated to fatigue and prone to breakage due to repeated mechanical stress, thereby affecting the service life of the keyboard. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a keyboard, which comprises a keycap, a flexible layer structure, a conductive circuit and a conductive piece, wherein, along the pressing direction of the keycap, the flexible layer structure comprises a first layer, a second layer and a third layer which are sequentially stacked, the third layer has a first area and a second area on the side facing the first layer, the first area is arranged opposite to the keycap, and the second area is arranged around the first area; one end of the conductive circuit is electrically connected with the signal output end, the other end of the conductive circuit is electrically connected with the signal input end, the conductive circuit comprises a first circuit and a second circuit which are electrically connected, along the pressing direction of the keycap, the first circuit is arranged on the side of the first layer facing the second layer, and the second circuit is arranged on the side of the first layer facing away from the second layer, the first circuit has a first contact and a second contact which are separately arranged, so that the signal output end and the signal input end are in a disconnected state; the conductive piece is arranged in the first area, and the conductive piece is arranged relative to the first contact and the second contact, the second layer has a relief portion, and the third layer can be deformed under the action of an external force to drive the conductive piece to pass through the relief portion and electrically connect the conductive piece with the first contact and the second contact.
[0005] In an implementation manner provided by the present application, one of the first contact and the second contact has a recessed portion, and the other of the first contact and the second contact has a protruding portion, and along the extension direction of the first layer, the protruding portion is arranged to extend into the recessed portion.
[0006] In an implementation manner provided by the present application, the first layer is rectangular, the first circuit has a first segment and a second segment which are arranged at an angle, the first contact is formed on the first segment, and the second contact is formed on the second segment.
[0007] In an implementation provided by the present application, the conductive circuit is provided with at least two conductive circuits, the at least two conductive circuits include a first conductive circuit and a second conductive circuit, a first section of the first conductive circuit is electrically connected with a first section of the second conductive circuit, so that the first conductive circuit and the second conductive circuit at least partially coincide.
[0008] In an implementation provided by the present application, the keyboard further includes a first sealing layer, the first sealing layer is arranged in the second area, the first sealing layer is formed with an exhaust passage, and the avoiding portion is communicated with the outside through the exhaust passage.
[0009] In an implementation provided by the present application, along the extension direction of the exhaust passage, the exhaust passage has at least two bending portions.
[0010] In an implementation provided by the present application, the keyboard further includes a second sealing layer, the second sealing layer is located between the first layer and the second layer, and the second sealing layer surrounds the first circuit to block the gap between the first layer and the second layer, and the arrangement area of the first circuit on the first layer is smaller than the arrangement area of the second circuit on the first layer.
[0011] In an implementation provided by the present application, the keyboard further includes an insulating layer, the insulating layer is arranged on the side of the first layer away from the second layer to cover the second circuit.
[0012] In an implementation provided by the present application, the first layer is provided with a through hole, the through hole extends along the pressing direction of the keycap, and the first circuit and the second circuit are electrically connected through the through hole.
[0013] In a second aspect, the present application provides an electronic device, which includes a body and a keyboard, the keyboard is electrically connected with the body, and the keyboard includes a keycap, a flexible layer structure, a conductive circuit and a conductive piece. Along the pressing direction of the keycap, the flexible layer structure includes a first layer, a second layer and a third layer arranged in sequence, the third layer has a first area and a second area on the side facing the first layer, the first area is arranged opposite to the keycap, and the second area surrounds the first area. One end of the conductive circuit is electrically connected with a signal output end, and the other end of the conductive circuit is electrically connected with a signal input end. The conductive circuit includes a first circuit and a second circuit electrically connected, along the pressing direction of the keycap, the first circuit is arranged on the side of the first layer facing the second layer, and the second circuit is arranged on the side of the first layer away from the second layer. The first circuit has a first contact and a second contact arranged separately, so that the signal output end and the signal input end are in a disconnected state. The conductive piece is arranged in the first area and is arranged relative to the first contact and the second contact. The second layer has an avoiding portion, and the third layer can be deformed under the action of an external force to drive the conductive piece to pass through the avoiding portion and electrically connect the conductive piece with the first contact and the second contact. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0015] Figure 2 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0016] Figure 3 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0017] Figure 4 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0018] Figure 5 Figure 4 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0019] Figure 6 Fig. 1 is a schematic diagram of a keyboard structure in the related art;
[0020] Figure 7 Fig. 1 is a schematic diagram of a keyboard structure in the related art.
[0021] BRIEF DESCRIPTION OF THE DRAWINGS
[0022] 1 - film structure; 11 - upper film layer; 12 - middle film layer; 121 - avoiding hole; 13 - lower film layer; 2 - conductive line; 21 - upper line; 211 - upper contact; 22 - lower line; 221 - lower contact; 3 - flexible layer structure; 31 - first layer; 311 - through hole; 32 - second layer; 321 - avoiding part; 33 - third layer; 331 - first area; 332 - second area layer; 4 - conductive line; 4a - first conductive line; 4b - second conductive line; 41 - first line; 411 - first segment; 4111 - first contact; 41111 - protruding part; 412 - second segment; 4121 - second contact; 41211 - recessed part; 42 - second line; 5 - conductive piece; 6 - signal output end; 7 - first sealing layer; 71 - exhaust passage; 711 - bending part; 8 - second sealing layer; 9 - insulation layer. DETAILED DESCRIPTION
[0023] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as the explanation and illustration of the purpose of the present application, and should not be regarded as improper limitation of the present application.
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the specific technical scheme of the present application will be further described in detail below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.
[0025] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0026] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left" and "right" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.
[0027] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.
[0028] In the embodiments of the present application, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0029] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to mean an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.
[0030] In the embodiments of the present application, for the convenience of description direction, Figures 1 to 3 And Figure 5 , Figure 6 All the directions are marked in the drawings, wherein the first direction is the pressing direction of the keycap, that is, the height direction of the keyboard; the second direction is the length direction of the keyboard, and the third direction is the width direction of the keyboard. It should be noted that the direction mark is only used to describe the present application, but not to limit the scope of the present application.
[0031] Referring toFigure 1 In the prior art, the keyboard can include a keycap, a film structure 1 and a conductive circuit 2. The film structure 1 can include an upper film 11, a middle film 12 and a lower film 13 which are sequentially stacked along the pressing direction of the keycap. The conductive circuit 2 can transmit the electrical signal output by the signal output end to the signal input end. In order to increase the layout area of the conductive circuit 2, the conductive circuit 2 can include an upper circuit 21 and a lower circuit 22. The upper circuit 21 can be arranged on the lower film 13 and electrically connected with the signal output end. The lower circuit 22 can be arranged on the upper film 11 and electrically connected with the signal input end. The upper circuit 21 and the lower circuit 22 can be separated by the middle film 12. The upper circuit 21 can have an upper contact 211, and the lower circuit 22 can have a lower contact 221. The middle film 12 can have a clearance hole 121 for the upper contact 211 to pass through.
[0032] When the key is pressed, the lower film 13 is deformed under force, driving the upper contact 211 to pass through the clearance hole 121 to electrically connect with the lower contact 221, so that the upper circuit 21 and the lower circuit 22 are electrically connected, thereby transmitting the electrical signal output by the signal output end to the signal input end. The system can determine whether the corresponding key is pressed by detecting the change of the current on the conductive circuit 2.
[0033] The problem of the above keyboard is that when the keycap is pressed, the keycap drives the upper contact 211 to contact the lower contact 221, while also driving the upper circuit 21 at the area around the upper contact 211 to stretch, causing the upper circuit 21 at the area around the upper contact 211 to accelerate fatigue due to repeated mechanical stress, which can easily cause the upper circuit 21 to break, thereby affecting the service life of the keyboard.
[0034] To solve the above problem, an electronic device is provided in the embodiments of the present application. It should be noted that the electronic device mentioned in the embodiments of the present application can be a computer, a television or a game console, and the embodiments of the present application do not limit the electronic device.
[0035] In the embodiments of the present application, the electronic device can include a body and a keyboard. The keyboard can be electrically connected with the body. Here, the body can refer to the core part of the electronic device, and its specific form is usually related to the type of the electronic device. For example, when the electronic device is a notebook computer, the body can include a shell and a display screen, electronic elements, a circuit board and a processor arranged in the shell. The keyboard can be electrically connected with the processor in the shell, and the user can interact with the electronic device through the keyboard.
[0036] Reference is made to Figure 2 , Figure 3 , Figure 4 and Figure 6The application also provides a keyboard, which can include a keycap, a flexible layer structure 3, a conductive circuit 4 and a conductive piece 5. In the pressing direction of the keycap, the flexible layer structure can include a first layer 31, a second layer 32 and a third layer 33 arranged in sequence. The side of the third layer 33 facing the first layer 31 can have a first area 331 and a second area 332. The first area 331 can be arranged opposite to the keycap, and the second area 332 can be arranged around the first area 331. One end of the conductive circuit 4 can be electrically connected to a signal output end 6, and the other end of the conductive circuit 4 can be electrically connected to a signal input end. The conductive circuit 4 can include a first circuit 41 and a second circuit 42 electrically connected. In the pressing direction of the keycap, the first circuit 41 can be arranged on the side of the first layer 31 facing the second layer 32, and the second circuit 42 can be arranged on the side of the first layer 31 facing away from the second layer 32. The first circuit 41 can have a first contact 4111 and a second contact 4121 arranged separately, so that the signal output end 6 and the signal input end are in a disconnected state. The conductive piece 5 can be arranged on the first area 331, and the conductive piece 5 can be arranged opposite to the first contact 4111 and the second contact 4121. The second layer 32 has a relief portion 321, and the third layer 33 can be deformed under the action of an external force to drive the conductive piece 5 to pass through the relief portion 321 and electrically connect the conductive piece 5 with the first contact 4111 and the second contact 4121.
[0037] In the application, the keycap can refer to the top cover part of each key of the keyboard. The keycap can be made of plastic or other materials, and the key can be marked with the function, number or other letter symbols of the corresponding key.
[0038] In the application, the flexible layer structure 3 can bear the conductive circuit 4 and the conductive piece 5. Therefore, the material of the flexible layer structure 3 can have insulation, for example, the material of the flexible layer structure 3 can be polyurethane, polycarbonate or silica gel, and the application does not limit this.
[0039] In the application, the signal output end 6 can generate an electrical signal. The keyboard can include an internal power supply, and the signal output end 6 can be formed in the internal power supply. The signal input end can receive an electrical signal. The keyboard can include a controller, and the signal input end can be formed in the controller. In addition, the signal output end 6 and the signal input end can be formed in the controller, that is, the controller has the functions of generating an electrical signal and receiving an electrical signal.
[0040] In the embodiments of the present application, the first circuit 41 of the conductive circuit 4 can be disposed on the first layer 31 on the side facing the second layer 32, and the second circuit 42 of the conductive circuit 4 can be disposed on the first layer 31 on the side facing away from the second layer 32, that is, the first circuit 41 and the second circuit 42 can be arranged on opposite sides of the first layer 31, and along the pressing direction of the keycap, the first circuit 41 can be disposed closer to the keycap than the second circuit 42. In this way, the first circuit 41 can have a first contact 4111 and a second contact 4121 disposed separately to cooperate with the conductive member 5 on the third layer 33, and the second circuit 42 can be electrically connected with the first circuit 41 to transmit electrical signals to the signal input end. The second circuit 42 is disposed on the side of the first layer 31 facing away from the second layer 32, and does not occupy the setting area of the first circuit 41, so that the first layer 31 can arrange more conductive circuits 4 under the condition of the same area, so that the keyboard can set more keys under the condition of the same size.
[0041] In the embodiments of the present application, the conductive member 5 can electrically connect the first contact 4111 and the second contact 4121, and therefore the structure of the conductive member 5 can have various forms, for example, the conductive member 5 can be a metal member or a silver paste printed circuit, and the embodiments of the present application do not limit the same.
[0042] In the technical scheme provided by the embodiments of the present application, the keyboard can include a keycap, a flexible layer structure 3, a conductive circuit 4, and a conductive piece 5. The keycap can be pressed by a user to trigger a corresponding key. In the pressing direction of the keycap, the flexible layer structure 3 can include a first layer 31, a second layer 32, and a third layer 33. The first layer 31 can be provided with the conductive circuit 4, the third layer 33 can be provided with the conductive piece 5, and the second layer 32 is used to separate the conductive piece 5 and the conductive circuit 4 so that the conductive circuit 4 and the conductive piece 5 are in a separated state when the key is not pressed, and the second layer 32 has a avoiding part 321 for the conductive piece 5 to pass through. The conductive circuit 4 includes a first circuit 41 and a second circuit 42 electrically connected, and the first circuit 41 and the second circuit 42 are respectively arranged on opposite sides of the first layer 31. The first circuit 41 can have a first contact 4111 and a second contact 4121 arranged separately to cooperate with the conductive piece 5 on the third layer 33. The side of the third layer 33 facing the first layer 31 has a first area 331 and a second area 332. The first area 331 is arranged opposite to the keycap, and the second area 332 is arranged around the first area 331. The conductive piece 5 is arranged in the first area 331, and the conductive piece 5 is opposite to the first contact 4111 and the second contact 4121. When the keycap is pressed, the third layer 33 is deformed under stress, driving the conductive piece 5 in the first area 331 to pass through the avoiding part 321, so that the first contact 4111 and the second contact 4121 are electrically connected, thereby enabling the signal output end 6 to output an electrical signal to the signal input end. The keyboard itself system or the electronic device system electrically connected with the keyboard can determine whether the corresponding key is pressed by detecting the change of current on the conductive circuit 4.
[0043] Compared with the scheme in the related art that the upper layer circuit and the lower layer circuit are arranged on the first layer 31 and the third layer 33 of the flexible layer structure 3, in the embodiments of the present application, the first circuit 41 and the second circuit 42 of the conductive circuit 4 can be arranged on opposite sides of the first layer 31, and the first circuit 41 can have a first contact 4111 and a second contact 4121 arranged separately. The third layer 33 can be provided with a conductive piece 5 for conducting the first contact 4111 and the second contact 4121. Since the surrounding area of the conductive piece 5 on the third layer 33 is not arranged with any conductive circuit 4, that is, the second area 332 is not arranged with any conductive circuit 4. When the keycap is pressed, the keycap drives the conductive piece 5 to be electrically connected with the first contact 4111 and the second contact 4121, without stretching the conductive circuit 4, thereby avoiding the influence of repeated mechanical stress on the conductive circuit 4, and prolonging the service life of the keyboard.
[0044] In the embodiments of the present application, the shapes of the first contact 4111 and the second contact 4121 can be regular shapes, for example, the shapes of the first contact 4111 and the second contact 4121 can be circular or rectangular, and the embodiments of the present application do not make any limitation in this aspect.
[0045] With reference to Figure 5 In a possible embodiment of the present application, one of the first contact 4111 and the second contact 4121 can have a recess 41211, and the other of the first contact 4111 and the second contact 4121 can have a protrusion 41111. The protrusion 41111 can extend into the recess 41211 along the extension direction of the first layer 31. In this way, the first contact 4111 and the second contact 4121 can be arranged more compactly along the extension direction of the first layer 31, thereby reducing the arrangement area of the first contact 4111 and the second contact 4121.
[0046] In the embodiments of the present application, the recess 41211 can be arranged on the first contact, and the protrusion 41111 can be arranged on the second contact; or the recess 41211 can be arranged on the second contact, and the protrusion 41111 can be arranged on the first contact. In addition, the number of the recess 41211 and the protrusion 41111 can be various, for example, the number of the recess 41211 and the protrusion 41111 can be one, two or more, and the embodiments of the present application do not make any limitation in this aspect.
[0047] In the embodiments of the present application, the shape of the first line 41 can be various, for example, the first line 41 can have a first segment 411 and a second segment 412 arranged in a same line, the first contact 4111 can be formed on the first segment 411, and the second contact 4121 can be formed on the second segment 412. In another possible embodiment of the present application, the first line 41 can have a first segment 411 and a second segment 412 arranged at an angle, the first contact 4111 can be formed on the first segment 411, and the second contact 4121 can be formed on the second segment 412. Here, compared with the scheme of the first segment 411 and the second segment 412 arranged in a same line, the first segment 411 and the second segment 412 arranged at an angle can arrange more lines in the same area, thereby improving the line density and reducing the space waste. In addition, the first segment 411 and the second segment 412 arranged at an angle can improve the electromagnetic interference between different lines by adjusting the directions of the first segment 411 and the second segment 412, thereby increasing the flexibility in the design of the first line 41.
[0048] In the embodiments of the present application, the angle between the first segment 411 and the second segment 412 can be various, for example, the angle between the first segment 411 and the second segment 412 can be 30°, 60° or 90°, and the embodiments of the present application do not make any limitation in this aspect.
[0049] In the embodiments of the present application, the conductive circuit 4 can be provided in various numbers, for example, one, two or more conductive circuits 4, and the present application is not limited in this respect.
[0050] With reference to Figure 4 In a possible embodiment of the present application, the conductive circuit 4 can be provided in at least two, which can include a first conductive circuit 4a and a second conductive circuit 4b. The first segment 411 of the first conductive circuit 4a can be electrically connected with the first segment 411 of the second conductive circuit 4b, so that the first conductive circuit 4a and the second conductive circuit 4b at least partially coincide. In this way, the first conductive circuit 4a and the second conductive circuit 4b can have a common part, which can serve as a common path for different conductive circuits 4 to transmit electrical signals, thereby reducing the total length and complexity of the conductive circuit 4 and saving the required layout space of the conductive circuit 4.
[0051] With reference to Figure 6 In the embodiments of the present application, the first conductive circuit 4a and the second conductive circuit 4b can also be provided separately, and the first circuit 41 of the first conductive circuit 4a and the first circuit 41 of the second conductive circuit 4b can be respectively electrically connected with different signal output terminals, and the present application is not limited in this respect.
[0052] With reference to Figure 2 And Figure 7 In the embodiments of the present application, the keyboard can further include a first sealing layer 7, which can be provided on the second area 332. The first sealing layer 7 can be formed with an exhaust passage 71, and the avoiding portion 321 can be in communication with the outside through the exhaust passage 71.
[0053] In the embodiments of the present application, the first sealing layer 7 can block the gap between the second layer 32 and the third layer 33, so as to reduce the probability of liquid and water vapor entering the flexible layer structure 3. Therefore, the structure design of the first sealing layer 7 can be various, for example, the first sealing layer 7 can be waterproof glue, double-sided adhesive, silicone or the like, and the present application is not limited in this respect.
[0054] In the embodiment of the present application, the first sealing layer 7 is arranged in the second area 332, and the first sealing layer 7 is arranged around the conductive member 5. In the radial direction of the first sealing layer 7, one side of the first sealing layer 7 is arranged close to the edge of the third layer 33, and the other side of the first sealing layer 7 is arranged close to the conductive member 5, thereby increasing the size of the first sealing layer 7. The exhaust passage is formed on the first sealing layer 7, and the avoiding portion 321 is in communication with the outside through the exhaust passage 71. In this way, the problem that the conductive member 5 and the first contact 4111 and the second contact 4121 cannot be restored to be separated due to the local vacuum after the conductive member 5 is pressed down can be avoided. The increase of the size of the first sealing layer 7 can increase the design length of the exhaust passage 71, and the exhaust passage 71 is also the main path for liquid and water vapor to enter the flexible layer structure 3. The increase of the design length of the exhaust passage 71 can reduce the probability of liquid and water vapor entering the inside of the flexible layer structure 3 through the gap between the second layer 32 and the third layer 33, thereby improving the sealing performance of the flexible layer structure 3.
[0055] It should be noted that, with reference to Figure 2 To prevent the conductive member 5 from blocking the exhaust passage, the size of the first sealing layer 7 in the pressing direction of the keycap can be greater than the size of the conductive member 5, so that the size of the exhaust passage can be greater than the size of the conductive member 5, thereby ensuring that the avoiding portion 321 can be in communication with the outside through the exhaust passage 71.
[0056] In the embodiment of the present application, the structure of the exhaust passage 71 has multiple possibilities, for example, the exhaust passage 71 can be a straight passage, an arc-shaped passage, or a wave-shaped passage, and the present application is not limited thereto.
[0057] With reference to Figure 6 In a possible embodiment of the present application, the exhaust passage has at least two bending portions 711 in the extension direction of the exhaust passage 71. Here, the length of the exhaust passage can be increased, that is, the flow path of liquid and water vapor is increased, thereby increasing the flow resistance and further improving the sealing performance of the flexible layer structure 3.
[0058] In the embodiment of the present application, the number of bending portions 711 on the exhaust passage 71 has multiple possibilities, for example, the number of bending portions 711 on the exhaust passage can be two, three, or five, and the present application is not limited thereto.
[0059] With reference to Figure 2In the embodiment of the present application, the keyboard further comprises a second sealing layer 8, the second sealing layer 8 is located between the first layer 31 and the second layer 32, and the second sealing layer 8 is arranged around the first circuit 41 to block the gap between the first layer 31 and the second layer 32, and the arrangement area of the first circuit 41 on the first layer 31 is smaller than the arrangement area of the second circuit 42 on the first layer 31. Here, the arrangement of the second sealing layer 8 can reduce the probability of liquid and water vapor entering the inside of the flexible layer structure 3 through the gap between the first layer 31 and the second layer 32. The arrangement of the second sealing layer 8 needs to avoid the first circuit 41, and the arrangement area of the first circuit 41 on the first layer 31 is smaller than the arrangement area of the second circuit 42 on the first layer 31, which can reserve a larger area for the arrangement of the second sealing layer 8, thereby improving the sealing performance of the flexible layer structure 3.
[0060] In the embodiment of the present application, the second sealing layer 8 can block the gap between the first layer 31 and the second layer 32 to reduce the probability of liquid and water vapor entering the flexible layer structure 3. Therefore, the structure design of the second sealing layer 8 has multiple possibilities, for example, the second sealing layer 8 can be waterproof glue, double-sided tape, silica gel, etc., and the present application does not limit this.
[0061] In the embodiment of the present application, the second circuit 42 is arranged on the side of the first layer 31 away from the second layer 32, that is, exposed to the flexible layer structure 3, in order to insulate the second circuit 42, the keyboard can comprise an insulating cover arranged on the side of the first layer 31 away from the second layer 32 to shield the second circuit 42.
[0062] Referring to Figure 2 In a possible embodiment of the present application, the keyboard further comprises an insulating layer 9 arranged on the side of the first layer 31 away from the second layer 32 to cover the second circuit 42. Here, the use of the insulating layer 9 to coat the second circuit 42 can reduce production costs while achieving better sealing performance of the second circuit 42.
[0063] In the embodiment of the present application, along the pressing direction of the key, the first circuit 41 and the second circuit 42 are arranged on opposite sides of the first layer 31, and the electrical connection scheme of the first circuit 41 and the second circuit 42 has multiple possibilities, for example, the edge of the first layer 31 can be provided with a avoiding opening, and the first circuit 41 can be electrically connected with the second circuit 42 through the avoiding opening.
[0064] Referring to Figure 2 Figure 2In a possible embodiment of the present application, the first layer 31 is provided with a through hole 311 extending along the pressing direction of the keycap, and the first circuit 41 and the second circuit 42 are electrically connected through the through hole 311. In this way, when designing the electrical connection position of the first circuit 41 and the second circuit 42, the position of the through hole 311 on the first layer 31 can be adjusted, thereby improving the flexibility of the design of the conductive circuit 4.
[0065] The above merely describes the preferred embodiments of the present application, but should not be used to limit the protection scope of the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A keyboard, characterized in that The keyboard comprises: a keycap; a flexible layer structure arranged along a pressing direction of the keycap, the flexible layer structure comprising a first layer, a second layer and a third layer arranged in sequence, the third layer having a first region and a second region on a side thereof facing the first layer, the first region being arranged opposite to the keycap, and the second region being arranged around the first region; a conductive circuit, one end of the conductive circuit being electrically connected to a signal output end, the other end of the conductive circuit being electrically connected to a signal input end, the conductive circuit comprising a first circuit and a second circuit electrically connected to each other, the first circuit being arranged on a side of the first layer facing the second layer along the pressing direction of the keycap, and the second circuit being arranged on a side of the first layer away from the second layer along the pressing direction of the keycap, the first circuit having a first contact point and a second contact point arranged separately, so that the signal output end and the signal input end are in a disconnected state; a conductive member arranged in the first region and arranged relative to the first contact point and the second contact point, the second layer having a clearance, and the third layer being deformable under an external force to drive the conductive member to pass through the clearance and electrically connect the conductive member with the first contact point and the second contact point.
2. The keyboard of claim 1, wherein, One of the first contact point and the second contact point has a recess, and the other of the first contact point and the second contact point has a protrusion, the protrusion being arranged in the recess along an extension direction of the first layer.
3. The keyboard of claim 1, wherein, The first layer is rectangular, the first circuit has a first segment and a second segment arranged at an angle, the first contact point is formed on the first segment, and the second contact point is formed on the second segment.
4. The keyboard of claim 3, wherein, The conductive circuit is arranged in at least two, the at least two conductive circuits comprising a first conductive circuit and a second conductive circuit, the first segment of the first conductive circuit being electrically connected to the first segment of the second conductive circuit, so that the first conductive circuit and the second conductive circuit at least partially overlap.
5. The keyboard according to any one of claims 1-4, wherein, The keyboard further comprises a first sealing layer arranged in the second region, the first sealing layer having an exhaust passage formed thereon, and the clearance being in communication with the outside through the exhaust passage.
6. The keyboard of claim 5, wherein, The exhaust passage has at least two bending portions along an extension direction of the exhaust passage.
7. The keyboard of any one of claims 1-4, wherein, The keyboard further comprises a second sealing layer arranged between the first layer and the second layer and arranged around the first circuit to block a gap between the first layer and the second layer, and an arrangement area of the first circuit on the first layer is smaller than an arrangement area of the second circuit on the first layer.
8. The keyboard of any one of claims 1-4, wherein, The keyboard further comprises an insulating layer arranged on a side of the first layer away from the second layer to cover the second circuit.
9. The keyboard of any one of claims 1-4, wherein, The first layer is provided with a through hole extending along the pressing direction of the keycap, and the first circuit and the second circuit are electrically connected through the through hole.
10. An electronic device, comprising: The keyboard comprises: a body; a keyboard electrically connected to the body, the keyboard comprising a keycap, a flexible layer structure, a conductive circuit and a conductive member. The flexible layer structure comprises, in the pressing direction of the keycap, a first layer, a second layer and a third layer stacked in sequence, the third layer has a first area and a second area on a side facing the first layer, the first area is arranged opposite to the keycap, and the second area is arranged around the first area; One end of the conductive circuit is electrically connected with the signal output end, the other end of the conductive circuit is electrically connected with the signal input end, the conductive circuit comprises a first circuit and a second circuit electrically connected, in the pressing direction of the keycap, the first circuit is arranged on a side of the first layer facing the second layer, and the second circuit is arranged on a side of the first layer facing away from the second layer, the first circuit has a first contact and a second contact arranged separately, so that the signal output end and the signal input end are in a disconnected state; The conductive part is arranged on the first area, and the conductive part is arranged relative to the first contact and the second contact, the second layer has a avoiding part, and the third layer can be deformed under the action of external force to drive the conductive part to pass through the avoiding part and make the conductive part electrically connected with the first contact and the second contact.