Key structure and electronic equipment

Abstract

The utility model relates to a key structure and electronic equipment, the key structure comprises a shell, a trigger piece and an elastic piece, the trigger piece is arranged on the shell, and a first contact is arranged on the trigger piece; the elastic piece is located on the side, away from the shell, of the trigger piece and comprises a first key body, the first key body comprises a first abutting portion and a first boss portion, the first boss portion is used for abutting against the first contact, and the center of the projection face, facing the first abutting portion, of the first contact deviates from the center of the first abutting portion. The center of the projection surface, facing the first pressing part, of the first boss part and the center of the first pressing part have offset displacement, and the center of the projection surface, facing the first pressing part, of the first boss part is closer to the center of the projection surface, facing the first pressing part, of the first contact than the center of the first pressing part. According to the key structure and the electronic equipment provided by the invention, by setting the offset displacement, the first boss part can abut against the first contact, so that the reliability and the space utilization rate of the equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a key structure and an electronic device. Background Art

[0002] Electronic products usually have physical buttons to control their operation. With the development of technology, electronic devices such as mobile phones and walkie-talkies are integrated with multiple functions. Due to the limitations of device space layout and size, the buttons on the surface of electronic devices may not be aligned with the metal domes used for touch control. For example, physical buttons are provided on the side of the electronic device for control, but in order to facilitate human control, the thickness of the electronic device cannot be too large. For some important buttons, such as the PTT button of a walkie-talkie, the corresponding metal domes installed on the side of the electronic device for touch control often have certain size restrictions, resulting in the metal domes not being located in the middle of the side width, which in turn affects the reliability of the electronic device button operation. Utility Model Content

[0003] An embodiment of the present application provides a key structure, including: a shell; a trigger member installed on the shell, and a first contact is provided on the trigger member; an elastic member is located on a side of the trigger member away from the shell, the elastic member includes a first key body, the first key body includes a first pressing portion and a first boss portion, the first boss portion is connected to the side of the first pressing portion facing the trigger member, the first boss portion is used to press the first contact, the center of the projection surface of the first contact toward the first pressing portion deviates from the center of the first pressing portion, there is an offset displacement between the center of the projection surface of the first boss portion toward the first pressing portion and the center of the first pressing portion, and the center of the projection surface of the first boss portion toward the first pressing portion is closer to the center of the projection surface of the first contact toward the first pressing portion than the center of the first pressing portion.

[0004] According to an embodiment of the present application, a bracket is provided on the side of the elastic member facing away from the trigger member, a first through hole is opened on the bracket, the position of the first through hole corresponds to the position of the first key body, and the bracket is used to fix the elastic member on the shell.

[0005] According to an embodiment of the present application, a first key cap is inserted into the first through hole, and the first key cap is configured to cover the first key body when the bracket is installed on the shell.

[0006] According to an embodiment of the present application, the first keycap includes a pressing portion and buckle portions connected to both ends of the pressing portion. A limiting groove is provided on the side wall of the first through hole. A first locking portion is provided at one end of the first through hole close to the housing. A second locking portion is provided on the side of the limiting groove away from the housing. The pressing portion is located in the first through hole, and at least part of the buckle portion is accommodated in the limiting groove. The first locking portion is used to limit the movement range of the pressing portion, and the second locking portion is used to limit the movement range of the buckle portion; the bracket is fixed to the housing.

[0007] According to an embodiment of the present application, a transition portion is connected between the first pressing portion and the first convex portion, and the projected areas of the first pressing portion, the transition portion, and the first convex portion facing the surface where the trigger member is located decrease in sequence.

[0008] According to an embodiment of the present application, the housing is provided with a mounting groove located on the side of the housing. The trigger member is installed in the mounting groove. A notch is provided on the side wall of the mounting groove. The trigger member is provided with a convex portion. The position of the first contact point corresponds to the position of the convex portion, and at least part of the convex portion is accommodated in the notch.

[0009] According to an embodiment of the present application, the length of the offset displacement is less than or equal to half of the width of the first pressing portion.

[0010] According to an embodiment of the present application, the trigger member includes a second contact point, the elastic member includes a second key body, the second key body includes a second pressing portion and a second convex portion connected to the side of the second pressing portion facing the second contact point. The second convex portion is used to press the second contact point, and a second keycap is covered on the second key body.

[0011] According to an embodiment of the present application, the bracket is provided with a second through hole, the second keycap is fixed to the second key body, and the second keycap is configured to be inserted into the second through hole when the bracket is installed on the housing.

[0012] According to an embodiment of the present application, the trigger member includes a stacked key film and a circuit board. The first contact point includes a first elastic sheet, the second contact point includes a second elastic sheet, the key film includes a connecting piece, the first elastic sheet and the second elastic sheet are installed on the connecting piece. The area of the first elastic sheet is larger than the area of the second elastic sheet. The elastic member includes a connecting piece. The first key body and the second key body are connected to the connecting piece. A first groove is formed on the side of the first pressing portion facing the first elastic sheet, and the first groove covers the first elastic sheet. A second groove is formed on the side of the second pressing portion facing the second elastic sheet, and the second groove covers the second elastic sheet.

[0013] An embodiment of the present application further provides an electronic device, and the electronic device includes the key structure described in the above embodiment.

[0014] The key structure and the electronic device provided by the present application set an offset displacement so that the first convex part can press against the first contact point, which is beneficial to the spatial layout of the electronic device components and improves the reliability and space utilization rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of an embodiment of the key structure of the present application;

[0017] Figure 2 is Figure 1 a schematic exploded view of the key structure shown;

[0018] Figure 3 is Figure 1 a schematic structural diagram of the trigger of the key structure shown;

[0019] Figure 4 is Figure 1 a schematic structural diagram of the elastic member of the key structure shown;

[0020] Figure 5 is Figure 4 a schematic partial structural diagram of the elastic member shown;

[0021] Figure 6 is Figure 1 a schematic structural diagram of the bracket of the key structure shown;

[0022] Figure 7 is Figure 1 a schematic structural diagram of the first keycap of the key structure shown;

[0023] Figure 8 is Figure 4 a schematic structural diagram of the elastic member from another angle shown;

[0024] Figure 9 is Figure 1 a schematic structural diagram of the housing of the key structure shown;

[0025] Figure 10 is Figure 1 a schematic structural diagram of the key film of the key structure shown;

[0026] Figure 11 is a schematic structural diagram of an embodiment of the electronic device of the present application. Detailed implementation manners

[0027] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0028] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or components inherent to these processes, methods, products, or devices.

[0029] Referring to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] The embodiment of the present application provides a key structure 10. Please refer to Figures 1 to 3 , the key structure 10 includes a housing 110, an elastic member 120, and a trigger member 190. The trigger member 190 is installed on the housing 110, and a first contact 191 is provided on the trigger member 190. The elastic member 120 is located on the side of the first contact 191 away from the housing 110. As Figure 4 and Figure 5As shown, the elastic member 120 includes a first key body 121, and the first key body 121 includes a first pressing portion 1211 and a first boss portion 1212. The first boss portion 1212 is connected to the side of the first pressing portion 1211 facing the trigger member 190, and the first boss portion 1212 is used to press the first contact 191. The center of the projection surface of the first contact 191 toward the first pressing portion 1211 deviates from the center of the first pressing portion 1211. There is an offset displacement L between the center of the projection surface of the first boss portion 1212 toward the first pressing portion 1211 and the center of the first pressing portion 1211. The center of the projection surface of the first boss portion 1212 toward the first pressing portion 1211 is closer to the center of the projection surface of the first contact 191 toward the first pressing portion 1211 than the center of the first pressing portion 1211. Specifically, the center of the projection surface of the first boss portion 1212 toward the first pressing portion 1211 may coincide with the center of the projection surface of the first contact point 191 toward the first pressing portion 1211 .

[0031] Optionally, the key structure 10 further includes a bracket 140, which is disposed on a side of the elastic member 120 away from the trigger member 190, and is used to fix the elastic member 120 to the housing 110. The bracket 140 is provided with a first key cap 150, which is located on a side of the first pressing portion 1211 away from the first contact point 191.

[0032] Optionally, the shell 110 is provided with a mounting groove 1101, and the mounting groove 1101 is located on the side 111 of the shell 110; the trigger member 190 is installed in the mounting groove 1101, and the trigger member 190 includes a stacked key film 130 and a circuit board 170, and the key film 130 is located on the side of the circuit board 170 away from the shell 110, and the key film 130 is provided with a first spring piece 131 corresponding to the first contact 191.

[0033] Optionally, the first spring sheet 131 may be a metal spring sheet, i.e. a pot sheet. The key film 130 may be a dome sheet, i.e. a metal spring conductive film, also known as a pot conductive film, which is a PET adhesive sheet containing a metal spring sheet (pot sheet), and the position of each metal spring sheet / pot sheet is arranged according to the corresponding pad position on the circuit board, and other components are used to set corresponding avoidance positions and positioning holes.

[0034] The Dome sheet can be used as a switch on circuit boards such as PCBs or FPCs, serving as an important tactile switch between the user and the instrument. Compared with traditional silicone buttons, the conductive film has a better feel, a longer lifespan, and can indirectly improve the production efficiency of various types of switches using the conductive film. The working principle of the metal dome sheet on the conductive film is that the metal dome sheet is located at the conductive part on the PCB / FPC board (mostly above the gold fingers on the circuit board). When pressed, the center point of the dome sheet sinks, touching the circuit on the PCB, thus forming a circuit and allowing current to pass through, enabling the entire product to work properly.

[0035] Optionally, in some other embodiments, the first contact 191 can also be a mechanical button, and the first boss portion 1212 can directly abut against the mechanical button contact for touch control, eliminating the need for a dome sheet or a Dome sheet.

[0036] Furthermore, the first keycap 150 can be a PTT button. PTT (Push-to-talk) is a communication method that switches the receive and transmit signal states by pressing a switch, commonly used in communication channels using the half-duplex mode, including two-way radio systems. Walkie-talkies are examples of such communication methods. The PTT button of a walkie-talkie is one of the most important buttons on the walkie-talkie and is used frequently. The corresponding metal dome sheet needs to have a certain size to ensure the required touch force, reliability, and the service life of the button.

[0037] The first dome sheet 131 can be circular. Limited by the width of the side 111, the diameter of the first dome sheet 131 may be greater than the width of the side 111, resulting in the center position of the first dome sheet 131 being offset from the width center of the side 111. At the same time, due to the occupation of space by other components, the center position of the first dome sheet 131 also needs to be offset from the width center of the side 111. Considering the overall appearance of the electronic device and the convenience of user operation, the center of the first keycap 150 should be aligned with the width center of the side 111. In the present application, there is an offset displacement L between the center of the projection surface of the first boss portion 1212 facing the first pressing portion 1211 and the center of the first pressing portion 1211, so that the first boss portion 1212 is aligned with the first dome sheet 131, and the position of the first boss portion 1212 corresponds to the middle part of the first dome sheet 131. When the user presses the first keycap 150 on the side 111, the pressure can be transmitted to the first boss portion 1212, and then the first boss portion 1212 can press towards the center of the first dome sheet 131, causing the center point of the first dome sheet 131 to sink to achieve touch control. The setting of the offset displacement L can effectively avoid the problem that the first boss portion 1212 fails to press the first dome sheet 131 or the pressing position deviates from the center of the first dome sheet 131, resulting in touch failure.

[0038] In some other embodiments, the elastic member 120 and the trigger member 190 may also be located at other positions of the housing 110. For example, the elastic member 120 and the trigger member 190 may be installed on the front or back of the housing 110, so that the first boss portion 1212 can press against the first contact 191 to improve the space utilization rate while meeting the device space layout requirements.

[0039] Optionally, as Figure 6 shown, a first through hole 1401 is formed in the bracket 140. The position of the first through hole 1401 corresponds to the position of the first key body 121. The first keycap 150 is inserted into the first through hole 1401 and is configured to cover the first key body 121 when the bracket 140 is installed on the housing 110. The first keycap 150 can be pre-installed on the bracket 140. When the bracket 140 is installed on the side 111, the first keycap 150 is then installed on the side 111 following the bracket 140 and covers the first key body 121.

[0040] Furthermore, as Figure 7 shown, the first keycap 150 includes a pressing portion 151 and buckle portions 152 connected to both ends of the pressing portion 151. A limiting groove 1403 is provided on the side wall of the first through hole 1401, and a first stopping portion 142 is provided at one end of the first through hole 1401 close to the housing 110. A second stopping portion 143 is provided on the side of the limiting groove 1403 away from the housing 110. The pressing portion 151 is located in the first through hole 1401, and at least part of the buckle portions 152 is received in the limiting groove 1403. The first stopping portion 142 is used to limit the moving range of the pressing portion 151, and the second stopping portion 143 is used to limit the moving range of the buckle portions 152. The cooperation of the first stopping portion 142 and the second stopping portion 143 can limit the moving range of the first keycap 150 in the direction perpendicular to the pressing portion 151.

[0041] Specifically, the number of the first stopping portions 142 may be multiple. For example, the number of the first stopping portions 142 may be four and are distributed around the first through hole 1401. The pressing portion 151 can be inserted into the first through hole 1401 from one end of the first through hole 1401 close to the housing 110. Under the action of an external pressure, the first stopping portion 142 can undergo elastic deformation so that the pressing portion 151 can be snapped into the first through hole 1401, and then the first keycap 150 is pre-installed on the bracket 140.

[0042] Further, the bracket 140 and the housing 110 are fixed together by ultrasonic welding. The limiting groove 1403 can limit the movement of the first keycap 150, so that the first keycap 150 can only move up and down along the opening direction of the first through hole 1401. At the same time, the first locking portion 142 and the second locking portion 143 can play a pre-fixing role during the installation process, so as to facilitate the installation of the first keycap 150 on the housing 110 together with the bracket 140. The bracket 140 and the housing 110 are fixed together by ultrasonic welding. Ultrasonic welding is a fast, clean and effective assembly process, which is a method used to assemble thermoplastic plastic fittings and some synthetic components. It is used for the bonding between plastic products, the bonding between plastic products and metal fittings, and the bonding between other non-plastic materials. The first keycap 150 is pre-installed on the bracket 140 and then covered on the first key body 121, rather than directly fixed on the first key body 121, which can avoid damage to the first keycap 150 due to non-centered fixation during ultrasonic welding.

[0043] In some other embodiments, the bracket 140 and the housing 110 can also be fixed together by other means such as snap connection, bonding, welding, screw connection, etc.

[0044] Optionally, as Figure 8 shown, a transition portion 1216 is connected between the first pressing portion 1211 and the first boss portion 1212, and the projected areas of the first pressing portion 1211, the transition portion 1216 and the first boss portion 1212 facing the surface where the trigger member 190 is located decrease in sequence. The transition portion 1216 is used for the transitional connection between the first pressing portion 1211 and the first boss portion 1212. At the same time, a groove can also be formed between the transition portion 1216 and the first pressing portion 1211, so that the pressing portion 1211 has an elastic arm that presses downward, so as to avoid the first pressing portion 1211 being too thick and causing inconvenience in pressing.

[0045] The number of the transition portions 1216 can be one or more. For example, the first pressing portion 1211, the transition portion 1216 and the first boss portion 1212 can form a semicircular structure, where the first boss portion 1212 can be located at the top of the semicircle; or the transition portion 1216 can be composed of one or more steps.

[0046] Specifically, a first step portion 1213 is connected between the first pressing portion 1211 and the first boss portion 1212, and a second step portion 1214 is connected between the first step portion 1213 and the first boss portion 1212. The transition portion 1216 includes the first step portion 1213 and the second step portion 1214. The projected areas of the first pressing portion 1211, the first step portion 1213, the second step portion 1214 and the first boss portion 1212 facing the key membrane 130 decrease in sequence, and the length direction of the second step portion 1214 is parallel to the direction of the offset displacement L.

[0047] Furthermore, the second step portion 1214 is a strengthened design for the offset displacement L to alleviate the feel difference that may be caused by the offset. The first step portion 1213 is used to strengthen the entire pressing area to ensure the strength of the pressing point.

[0048] Specifically, the area of the projection surface of the first boss portion 1212 facing the first elastic piece 131 can be less than half of the area of the first elastic piece 131. The shape of the first boss portion 1212 can be a frustum of a cone or a cylinder, and the radius of the cross-section of the first boss portion 1212 can be less than half of the radius of the first elastic piece 131. The cross-sectional shapes of the first step portion 1213 and the second step portion 1214 can be an ellipse composed of two semi-circles and two straight lines. The direction of the offset displacement L can be perpendicular to the length direction of the side 111, that is, the length direction of the second step portion 1214 can be perpendicular to the length direction of the side 111. The first boss portion 1212 can be located at one end in the length direction of the second step portion 1214. The projection areas of the first pressing portion 1211, the first step portion 1213, the second step portion 1214, and the first boss portion 1212 facing the key film 130 decrease in sequence, and the force applied to the first key cap 150 can be guided to the first boss portion 1212 to improve the pressing effect.

[0049] Optionally, as Figure 3 、 Figure 9 and Figure 10 shown, the trigger member 190 is installed in the installation groove 1101. A notch 1102 is provided on the side wall of the installation groove 1101. The trigger member 190 is provided with a protrusion 193. The position of the first contact 191 corresponds to the position of the protrusion 193, and at least a part of the protrusion 193 is received in the notch 1102.

[0050] Furthermore, the key film 130 is provided with a protruding section 132 corresponding to the protrusion 193. The position of the first elastic piece 131 corresponds to the position of the protruding section 132, and at least a part of the protruding section 132 is received in the notch 1102. The key film 130 can include a connecting piece 133. The first elastic piece 131 is installed on the connecting piece 133. Due to the size limitation of the first elastic piece 131, there is a phenomenon that the diameter of the first elastic piece 131 is greater than the width of the installation groove 1101 or the diameter of the area on the connecting piece 133 for installing the first elastic piece 131 is greater than the width of the installation groove 1101. Therefore, a protruding section 132 can be provided on the connecting piece 133 for installing the first elastic piece 131, and the protruding section 132 can be received in the notch 1102.

[0051] Optionally, the length of the offset displacement L is less than or equal to half of the width of the first pressing portion 1211.

[0052] Optionally, the size of the offset displacement L is 0.5 mm - 1.3 mm, and the diameter of the first elastic piece 131 can be 5 mm or more. The size of the offset displacement L is 0.5 mm, 0.8 mm, 1.1 mm, 1.15 mm, 1.2 mm, 1.3 mm, and any value between the above values. Specifically, the size of the offset displacement L is 1.2 mm, and the diameter of the first elastic piece 131 can be 5 mm.

[0053] Optionally, the trigger 190 includes a second contact 192, the elastic member 120 includes a second key body 122, the second key body 122 includes a second pressing portion 1221 and a second boss portion 1222 connected to the side of the second pressing portion 1221 facing the second contact 192. The second boss portion 1222 is used to press the second contact 192, and the position of the second boss portion 1222 corresponds to the position of the second contact 192.

[0054] Optionally, as Figure 3 , Figure 4 , Figure 8 and Figure 10 shown, the trigger 190 includes a key film 130 and a circuit board 170 arranged in layers. The first contact 191 includes a first elastic piece 131, the second contact 192 includes a second elastic piece 134. The key film 130 includes a first elastic piece 131, a connecting piece 133 and a second elastic piece 134. The first elastic piece 131 and the second elastic piece 134 are installed on the connecting piece 133. The area of the first elastic piece 131 is larger than the area of the second elastic piece 134. The elastic member 120 includes a first key body 121, a connecting member 123 and a second key body 122. The first key body 121 and the second key body 122 are connected to the connecting member 123. The second key body 122 includes a second pressing portion 1221 and a second boss portion 1222 connected to the side of the second pressing portion 1221 facing the key film 130. The second boss portion 1222 is aligned with the second elastic piece 134, and the position of the second boss portion 1222 corresponds to the middle position of the second elastic piece 134. A second key cap 160 is covered on the second key body 122. A first groove 1201 is formed on the side of the first pressing portion 1211 facing the first elastic piece 131, and the first groove 1201 covers the first elastic piece 131. A second groove 1202 is formed on the side of the second pressing portion 1221 facing the second elastic piece 134, and the second groove 1202 covers the second elastic piece 134. The first pressing portion 1211 and the second pressing portion 1221 protrude relative to the connecting member 123. The first boss portion 1212 is located in the first groove 1201, and the second boss portion 1222 is located in the second groove 1202.

[0055] Further, connecting blocks 1215 may be connected to the inner sidewalls of the first stepped portion 1213 and the first groove 1201. The first stepped portion 1213 may deviate from the middle position of the first pressing portion 1211 and may be arranged closer to one side of the first groove 1201. The connecting blocks 1215 may be located on the other side of the first groove 1201 and connected to both ends of the first stepped portion 1213. When the first stepped portion 1213 is offset, the connecting blocks 1215 may further strengthen the entire pressing area to ensure the strength of the pressing point. The second stepped portion 1214 may be located at the middle position of the first stepped portion 1213, and the length directions of the first stepped portion 1213 and the second stepped portion 1214 may be perpendicular to each other.

[0056] Specifically, the convex section 132 may be arc-shaped, and the centers of the first elastic piece 131 and the convex section 132 may coincide. The connecting member 123 may be strip-shaped. At the position corresponding to the notch 1102, the connecting member 123 may also be provided with a protruding portion 1231. At least a part of the protruding portion 1231 is received in the notch 1102, and the first groove 1201 may be partially located on the protruding portion 1231 to cover the first elastic piece 131. The first stepped portion 1213 may be arranged closer to the protruding portion 1231.

[0057] Optionally, as Figure 4 and Figure 9 shown, the elastic member 120 may cover the installation groove 1101. Positioning portions 1232 are provided on both sides of the connecting member 123, and positioning grooves 1203 are formed on the positioning portions 1232. First positioning posts 112 are provided on both sides of the installation groove 1101 of the housing 110. The first positioning posts 112 are located outside the installation groove 1101. When the connecting member 123 covers the installation groove 1101, the positioning portions 1232 protrude from the installation groove 1101, and the first positioning posts 112 are inserted into the positioning grooves 1203. First positioning holes 1204 may also be provided at both ends of the connecting member 123, and second positioning posts 113 may be provided at both ends of the installation groove 1101. The second positioning posts 113 are located inside the installation groove 1101. When the connecting member 123 covers the installation groove 1101, the second positioning posts 113 are inserted into the first positioning holes 1204. The number of the first positioning posts 112 and the number of the second positioning posts 113 may both be multiple. Specifically, the number of the first positioning posts 112 may be 4 and they are symmetrically distributed, and the number of the second positioning posts 113 may be 4 and they are symmetrically distributed.

[0058] Further, a second positioning hole 1103 is provided on the side edge 111 of the housing 110, and a third positioning post 141 is provided on the bracket 140. The third positioning post 141 is inserted into the second positioning hole 1103 to position the bracket 140.

[0059] Furthermore, the elastic member 120 is an integral structure. The elastic member 120 can be integrally injection molded, and the material of the elastic member 120 can be an elastic material. The integral structure design of the elastic member 120 makes the installation more convenient and improves the installation efficiency. The materials of the first keycap 150 and the second keycap 160 can be rigid materials. Specifically, the first keycap 150 and the second keycap 160 can respectively form P+R keys with the first key body 121 and the second key body 122 to enhance the key feel, making the feel crisp and improving the user experience. The P+R key is a type of key, and this type of key is usually made of silicone or plastic and has good elasticity and durability.

[0060] In some other embodiments, the first keycap 150 can also have a certain elasticity so that when the bracket 140 is fixed to the housing 110, the first keycap 150 can be directly snapped off from the first through hole 1401 for replacement. A decorative member can also be provided on the first keycap 150 to further improve the aesthetics and feel.

[0061] Specifically, the material of the elastic member 120 can be silicone, and the materials of the first keycap 150 and the second keycap 160 are plastic or metal materials. The materials of the first elastic piece 131 and the second elastic piece 134 are metal materials, and the material of the connecting piece 133 can be polyethylene terephthalate (PET) plastic.

[0062] Optionally, the bracket 140 is provided with a second through hole 1402. The second keycap 160 is fixed to the second key body 122, and the second keycap 160 is configured to be inserted into the second through hole 1402 when the bracket 140 is installed on the housing 110. The second keycap 160 can be pre-fixed to the second key body 122 by dotting glue, and when the bracket 140 is installed on the side 111, it is inserted into the second through hole 1402 of the bracket 140.

[0063] In some other embodiments, bumps can also be provided on both sides of the second keycap 160, and notches can also be provided on the side wall of the second through hole 1402. The bumps can be engaged with the notches to limit the second keycap 160 so that the second keycap 160 can only move up and down along the opening direction of the second through hole 1402 to prevent the second keycap 160 from rotating after the adhesion between the second keycap 160 and the second key body 122 fails. The second keycap 160 can also be pre-installed on the bracket 140 and then installed on the housing 110 together with the bracket 140.

[0064] Furthermore, the second keycap 160 can be a volume up / down key or a custom key, etc. The number of the second keycaps 160 can be one or more. Specifically, the number of the second keycaps 160 can be three, including a volume up key, a volume down key, and a custom key.

[0065] Further, the second keycap 160 can be cylindrical to cover the second key body 122, and the first keycap 150 can be plate-shaped to facilitate covering the first key body 121.

[0066] Optionally, as Figure 2 shown, a circuit board 170 is provided between the key membrane 130 and the housing 110, and conductive parts corresponding to the first elastic piece 131 and the second elastic piece 134 are provided on the circuit board 170.

[0067] Further, as Figure 9 shown, a third groove 1104 can be provided on the bottom surface of the installation groove 1101, and the shape of the third groove 1104 is matched with the shape of the circuit board 170. The circuit board 170 can be installed in the third groove 1104. Specifically, a plurality of holes can be opened on the circuit board 170, and convex columns corresponding to the holes can be provided on the bottom surface of the third groove 1104 to position the circuit board 170. A limiting member 180 can be provided around the circuit board 170, and the limiting member 180 is provided with a limiting hole 1801, and the shape of the limiting hole 1801 is matched with the shape of the circuit board 170 so that the limiting member 180 can be provided around the circuit board 170. The key membrane 130 covers the limiting member 180 and the circuit board 170, and the limiting member 180 can limit the circuit board 170 and can also play a role in supporting the key membrane 130.

[0068] The embodiment of the present application also provides an electronic device, as Figure 11 shown, the electronic device includes the key structure 10 in the above embodiment.

[0069] Further, the electronic device can be a walkie-talkie, such as a PoC public network walkie-talkie, etc. In some other embodiments, the electronic device can also be a mobile phone, a tablet computer or a handheld PDA, etc.

[0070] For the key structure 10 and the electronic device provided by the present application, by setting the offset displacement L, the first boss portion 1212 can press the first elastic piece 131, so that the position of the first elastic piece 131 does not have to be limited to the middle of the width of the side edge 111 of the housing 110, which is beneficial to reducing the thickness of the electronic device while ensuring the size of the first elastic piece 131, facilitating the layout of the remaining components of the electronic device, and improving the reliability and space utilization rate of the device. At the same time, the rigid first keycap 150 and the second keycap 160 cooperate with the elastic member 120 to improve the key feel and the user experience. The pre-installation structure of the first keycap 150 and the bracket 140, and the integrated structure design of the elastic member 120 make the installation more convenient and improve the installation efficiency.

[0071] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall similarly be included in the patent protection scope of the present application.

Claims

1. A key structure, characterized in that, include: case; A triggering member is mounted on the housing, and a first contact point is provided on the triggering member; An elastic member is located on a side of the trigger member facing away from the shell, the elastic member includes a first key body, the first key body includes a first pressing portion and a first boss portion, the first boss portion is connected to the side of the first pressing portion facing the trigger member, the first boss portion is used to press the first contact, the center of the projection surface of the first contact toward the first pressing portion deviates from the center of the first pressing portion, there is an offset displacement between the center of the projection surface of the first boss portion toward the first pressing portion and the center of the first pressing portion, and the center of the projection surface of the first boss portion toward the first pressing portion is closer to the center of the projection surface of the first contact toward the first pressing portion than the center of the first pressing portion.

2. The key structure according to claim 1, characterized in that, A bracket is provided on the side of the elastic member away from the trigger member, a first through hole is provided on the bracket, the position of the first through hole corresponds to the position of the first key body, and the bracket is used to fix the elastic member on the housing.

3. The key structure according to claim 2, wherein A first key cap is inserted into the first through hole, and the first key cap is configured to cover the first key body when the bracket is installed on the housing.

4. The key structure according to claim 3, wherein The first keycap includes a pressing portion and a buckle portion connected to both ends of the pressing portion, a limiting groove is provided on the side wall of the first through hole, a first stopping portion is provided at one end of the first through hole close to the shell, and a second stopping portion is provided at a side of the limiting groove away from the shell, the pressing portion is located in the first through hole, and the buckle portion is at least partially accommodated in the limiting groove, the first stopping portion is used to limit the moving range of the pressing portion, and the second stopping portion is used to limit the moving range of the buckle portion; the bracket is fixed to the shell.

5. The key structure according to claim 1, wherein A transition portion is connected between the first pressing portion and the first boss portion, and the projection areas of the first pressing portion, the transition portion and the first boss portion toward the surface where the trigger member is located decrease in sequence.

6. The key structure according to claim 1, characterized in that, The shell is provided with a mounting groove, the mounting groove is located on the side of the shell, the trigger member is installed in the mounting groove, a notch is provided on the side wall of the mounting groove, the trigger member is provided with a protrusion, the position of the first contact corresponds to the position of the protrusion, and the protrusion is at least partially accommodated in the notch.

7. The key structure according to claim 1, characterized in that, The length of the offset displacement is less than or equal to half of the width of the first pressing portion.

8. The key structure according to claim 2, wherein The trigger member includes a second contact, the elastic member includes a second key body, the second key body includes a second pressing portion and a second boss portion connected to the second pressing portion on a side facing the second contact, the second boss portion is used to press the second contact, and a second key cap is covered on the second key body.

9. The key structure according to claim 8, wherein, The bracket is provided with a second through hole, the second key cap is fixed on the second key body, and the second key cap is configured to be inserted into the second through hole when the bracket is installed on the housing.

10. The key structure according to claim 8, characterized in that, The trigger includes a key film and a circuit board arranged in a stacked manner. The first contact includes a first elastic piece, the second contact includes a second elastic piece, the key film includes a connecting piece, the first elastic piece and the second elastic piece are mounted on the connecting piece, the area of the first elastic piece is larger than that of the second elastic piece, the elastic member includes a connecting member, the first key body and the second key body are connected to the connecting member, a first groove is formed on one side of the first pressing portion facing the first elastic piece, the first groove covers the first elastic piece, a second groove is formed on one side of the second pressing portion facing the second elastic piece, and the second groove covers the second elastic piece.

11. An electronic device, characterized in that, The electronic device includes the key structure according to any one of claims 1-10.

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