Electronic equipment

Abstract

The embodiment of the invention provides an electronic device, which comprises a middle frame, the middle frame comprises a middle plate and a frame surrounding the middle plate, the frame is provided with a first mounting groove and a second mounting groove, and a pressure-sensitive key comprises a key cap and a key module; the key cap is installed in the first installation groove in the length direction or the width direction of the electronic device, the surface, exposed out of the first installation groove, of the key cap is a pressing face used for receiving pressing force, the key module is installed in the second installation groove in the thickness direction of the electronic device, and the key cap is connected with the key module through a guide column. The key module is mounted in the second mounting groove along the thickness direction of the electronic equipment, so that the key module and the frame can be assembled in a small space without damaging the side wall of the battery compartment, the side wall of the battery compartment is kept complete, the safety of a battery can be ensured, the structural rigidity of the middle frame is improved, and the service life of the middle frame is prolonged. And the reliability of the electronic equipment is improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to an electronic device. Background Art

[0002] With the rapid development of electronic technology, electronic devices such as smart phones and tablet computers have become increasingly popular and gradually become an indispensable part of people's daily lives.

[0003] Currently, the appearance of the keys of electronic devices is evolving towards a non-porous design. The power button and volume buttons usually adopt the design of pressure-sensitive buttons, which have pressure detection and sliding detection functions. Users can trigger the corresponding button functions by touching or sliding on the surface of the buttons. The adoption of pressure-sensitive buttons can realize the application of innovative interaction scenarios on electronic devices.

[0004] In the related art, the pressure-sensitive buttons are generally installed on the middle frame of the electronic device. The middle frame includes a middle plate and a border surrounding the middle plate. A battery compartment for installing a battery is generally provided on the middle plate. In the related art, the module part of the pressure-sensitive button is installed on the border. Since the border has a small size and limited installation space, generally, holes are drilled in the side wall of the battery compartment along the direction close to the border to fix the pressure-sensitive button on the border with screws. However, this not only causes the surface of the side wall of the battery compartment to be incomplete, affecting battery safety, but also reduces the stiffness of the middle frame, and further results in poor reliability of the electronic device. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide an electronic device to install the pressure-sensitive button in a smaller space and improve the reliability of the electronic device at the same time. The specific technical solutions are as follows:

[0006] The embodiment of the present application provides an electronic device, comprising: a display panel; a back cover, arranged opposite to the display panel; a middle frame, located between the display panel and the back cover, the middle frame comprising a middle plate and a frame surrounding the middle plate, and a battery compartment is arranged on the middle plate; the frame is provided with a first mounting groove and a second mounting groove, and the opening of the first mounting groove is located on the outer peripheral surface of the frame; the second mounting groove is located on a side of the first mounting groove close to the battery compartment, and the opening of the second mounting groove is located on a side surface of the frame opposite to the display panel or the back cover; the pressure-sensitive key comprises a key cap and a key module; the key cap is installed in the first mounting groove along the length direction or the width direction of the electronic device, the surface of the key cap exposed to the first mounting groove is a pressing surface, the pressing surface is used to receive the pressing force, and a guide column is arranged on a side of the key cap away from the pressing surface; the key module is installed in the second mounting groove along the thickness direction of the electronic device, the bottom wall of the first mounting groove is provided with a through hole, the key module is provided with a positioning hole, and the guide column passes through the through hole and is connected with the positioning hole of the key module.

[0007] In an embodiment of the present application, the electronic device includes a display panel, a back cover and a middle frame, the middle frame includes a middle plate and a frame, a battery compartment is arranged on the middle plate, and the battery compartment is used to accommodate a battery. The electronic device also includes a pressure-sensitive key, the pressure-sensitive key includes a key cap and a key module, and a first mounting groove and a second mounting groove are arranged on the frame. By setting the opening of the first mounting groove on the outer peripheral surface of the frame, the key cap can be installed in the first mounting groove along the length direction or width direction of the electronic device during assembly; by setting the opening of the second mounting groove on the side surface of the frame opposite to the display panel or the back cover, the key module can be installed in the second mounting groove along the thickness direction of the electronic device during assembly. By setting a through hole on the bottom wall of the first mounting groove, that is, the wall surface of the first mounting groove corresponding to its opening, the guide column of the key cap can be connected to the key module after passing through the through hole, so that after the user touches the pressing surface of the key cap or slides on the pressing surface of the key cap, the key module can generate a feedback signal, complete event feedback, and realize the corresponding key function. Different from the related art, in the embodiment of the present application, the opening of the second mounting groove is arranged on the side surface of the frame opposite to the display panel or the back cover, that is, the second mounting groove is opened along the thickness direction of the electronic device. By installing the button module in the second mounting groove along the thickness direction of the electronic device, the button module and the frame can be assembled in a smaller space without damaging the side wall of the battery compartment, so that the side wall of the battery compartment remains intact, thereby ensuring the safety of the battery and improving the structural rigidity of the middle frame, which is beneficial to improving the reliability of the electronic device.

[0008] In some embodiments of the present application, the button module is provided with a first connecting hole, which extends along the thickness direction of the electronic device, and a corresponding second connecting hole is provided in the second mounting groove. The pressure-sensitive button also includes a locking piece, which is inserted into the first connecting hole and the second connecting hole in sequence along the thickness direction of the electronic device to install the button module in the second mounting groove; or, the pressure-sensitive button also includes a limit block, and the button module and the limit block are interference fit in the second mounting groove, and the limit block is used to limit the button module in a direction perpendicular to the pressing surface and in the thickness direction of the electronic device.

[0009] In this way, not only can a reliable connection between the button module and the frame be achieved, but the integrity of the battery compartment retaining wall can also be maintained, ensuring battery safety and middle frame rigidity. Moreover, the assembly method is simple and the assembly difficulty is low.

[0010] In some embodiments of the present application, the pressure-sensitive key includes a clip spring, and a slot is provided at one end of the guide column away from the pressing surface, the clip spring is installed at the slot, and the clip spring cooperates with the key module to axially limit the guide column. In this way, the key cap and the key module can be relatively fixed to prevent the key cap from falling off.

[0011] In some embodiments of the present application, a sealing ring is sleeved on the guide column, and the sealing ring is located in the first installation groove. By providing the sealing ring, water, dust, etc. can be prevented from entering the interior of the electronic device through the first installation groove, which is conducive to improving the dustproof and waterproof properties of the electronic device.

[0012] In some embodiments of the present application, a waterproof layer is further provided on the surface of one side of the frame where the second mounting groove opening is provided, thereby preventing water from entering the interior of the electronic device through the display panel or the back cover, which is beneficial to further improve the dustproof and waterproof performance of the electronic device, so that the dustproof and waterproof performance of the electronic device can reach IP68 level.

[0013] In some embodiments of the present application, the key module includes a flexible circuit board, a sensing plate is provided at one end of the flexible circuit board, a pressure sensing element is provided on the surface of the sensing plate on one side close to the keycap, and the pressure sensing element is used to generate a feedback signal after the pressing surface is pressed; the key module also includes a feedback component, the feedback component includes an upper armature, an iron core, a coil and a lower armature, the upper armature is fixed to the side of the sensing plate away from the keycap, and the lower armature is fixed to the side of the upper armature away from the sensing plate; the iron core is located between the upper armature and the lower armature; the coil is arranged around the circumference of the iron core, the upper armature is provided with a wire passing hole, and the coil is connected to the flexible circuit board through the wire passing hole.

[0014] By setting a pressure sensing element, after the pressing surface of the keycap is pressed, the pressure sensing element can undergo a micro-deformation to generate a touch signal. Then, the touch signal is transmitted to the circuit board of the electronic device to complete event feedback and implement the corresponding key function. By setting a feedback component, after the touch signal is generated, a pressing feel can be formed to achieve touch feedback and avoid accidental touches caused by multiple touches by the user.

[0015] In some embodiments of the present application, the upper armature includes a main body portion and a connecting ear. The main body portion is a plate-like structure, and the connecting ear is located at an end of the main body portion along the extending direction. The connecting ear is an L-shaped structure, and the connecting ear includes a first sub-portion and a second sub-portion connected to each other. The first sub-portion is connected to the main body portion, and the second sub-portion is parallel to the bottom wall of the second mounting groove. The first connecting hole penetrates through the second sub-portion, and the locking member passes through the second sub-portion of the connecting ear and then is connected to the second mounting groove of the frame. By providing a connecting ear on the upper armature, it is convenient to fix the connecting ear to the second mounting groove through the locking member, thereby realizing the installation and fixation of the key module.

[0016] In some embodiments of the present application, the lower armature is a ring frame structure, and the lower armature includes two side plates arranged oppositely and a rear cover plate connecting the two side plates. The main body portion of the upper armature and the lower armature surround to form an accommodating space, and the iron core and the coil are located in the accommodating space. By setting the lower armature as a ring frame structure, that is, the lower armature adopts a circumferential magnetic yoke design, the confinement of magnetic field energy can be enhanced, the electromagnetic force of the feedback component can be increased, and thus the vibration amplitude of the upper armature can be increased, making the pressing feel more obvious.

[0017] In some embodiments of the present application, the coil is fixedly connected to the upper armature, and there is a preset gap between the coil and the rear cover plate of the lower armature. The value of the preset gap is related to the magnitude of the electromagnetic force. By achieving the preset gap, the magnitude of the electromagnetic force can be ensured during use.

[0018] In some embodiments of the present application, a buffer pad is provided between the iron core and the rear cover plate of the lower armature. By providing the buffer pad, abnormal noises caused by impacts between the iron core and the lower armature under the action of magnetic force can be avoided.

[0019] In some embodiments of the present application, the feedback component further includes a support structure, and the support structure is supported between the two side plates of the lower armature. Thereby, the structural strength of the lower armature can be improved.

[0020] In some embodiments of the present application, the feedback component further includes a magnetic isolation block, which is located in the accommodation space and distributed on the periphery of the coil. Thereby, the electromagnetic force can be prevented from dissipating to the surroundings, which is beneficial to further enhancing the confinement of magnetic field energy and improving the electromagnetic force.

[0021] In some embodiments of the present application, the main body part is a plate-like structure with unequal thicknesses. The main body part has a first thickness part and a second thickness part. The first thickness part corresponds to the position of the pressure sensing element, and the second thickness part corresponds to at least the position of the iron core. The thickness dimension of the second thickness part is greater than that of the first thickness part. By setting the main body part as a plate-like structure with unequal thicknesses, the bending resistance of the upper armature can be improved, and the sensitivity of the pressure sensing element can be taken into account at the same time.

[0022] In some embodiments of the present application, the button module is an axisymmetric structure, and the axis of symmetry is the center line of the button module in the extending direction; the flexible circuit board includes a connecting wire. One end of the connecting wire is connected to the middle position of the sensing plate in the extending direction, the pressure sensing elements are distributed on both sides of the connecting wire, and the other end of the connecting wire is connected to the circuit board of the electronic device. Thereby, dual-side multiplexing of the pressure-sensitive button in the extending direction can be realized, so that the interaction richness can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of the electronic device provided by the embodiment of the present application;

[0025] Figure 2 is Figure 1 a structural exploded view of the shown electronic device;

[0026] Figure 3 is Figure 2 a connection schematic diagram of the shown middle frame and the pressure-sensitive button;

[0027] Figure 4 is Figure 3 an exploded view of the shown middle frame and the pressure-sensitive button;

[0028] Figure 5 is Figure 3 a cross-sectional view taken along line A-A in;

[0029] Figure 6 is Figure 4 a schematic structural diagram of a key module of the pressure-sensitive button shown in the figure;

[0030] Figure 7 is Figure 6 a cross-sectional view taken along line B-B in the figure;

[0031] Figure 8 is Figure 6 a schematic structure of a feedback component of the key module shown in the figure Figure 1 ;

[0032] Figure 9 is Figure 8 a schematic structure of the feedback component shown in the figure Figure 2 (the main body part of the upper armature is not shown);

[0033] Description of reference numerals:

[0034] Electronic device 10; Display panel 100; Translucent cover plate 110; Display screen 120; Middle frame 200; Middle plate 210; Battery compartment 211; Frame 220; First installation groove 221; Bottom wall 2211 of the first installation groove; Through hole 2212; Buffer 2213; Second installation groove 222; Bottom wall 2221 of the second installation groove; Second connection hole 2222; Pressure-sensitive button 300; Keycap 310; Pressing surface 311; Guide post 312; Card slot 313; Snap ring 320; Key module 330; First connection hole 331; Accommodating space 332; Positioning hole 333; Flexible circuit board 340; Induction plate 341; Pressure sensing element 342; Connection line 343; Adhesive layer 344; Upper armature 350; Main body part 351; First thickness part 3511; Second thickness part 3512; Wire passing hole 3513; Reinforcing plate 3514; Jack 3515; Connection ear 352; First sub-part 3521; Second sub-part 3522; Lower armature 360; Side plate 361; Extension part 3611; Rear cover plate 362; Iron core 371; Protrusion 3711; Coil 372; Enclosed space 373; Support structure 380; First support plate 381; Second support plate 382; Bending part 3821; Inclined plate 383; Magnetic isolation block 390; Rear cover 400; Battery 500; Circuit board 600; Main board 610; Sub-board 620; Thickness direction Z; Extension direction Y. Detailed implementation manners

[0035] In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0036] In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. For example, the first connection part and the second connection part are used to distinguish different connection parts, and their sequence is not limited. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and position, and "first", "second", etc. do not necessarily mean different.

[0037] It should be noted that in this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplarily" or "for example" aims to present relevant concepts in a specific manner.

[0038] An electronic device 10 is proposed in the embodiments of the present application. The electronic device 10 includes but is not limited to mobile phones, tablet computers (i.e., pads), virtual reality (VR) devices, laptop computers, personal computers (PCs), ultra-mobile personal computers (UMPCs), handheld computers, smart wearable devices, point of sales (POS), and other electronic products. The embodiments of the present application will be described by taking the electronic device 10 as a mobile phone as an example.

[0039] See Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the electronic device 10 provided by the embodiments of the present application, Figure 2 is Figure 1 a structural decomposition diagram of the electronic device 10 shown. It can be understood that Figure 1 and Figure 2 only schematically show some components of the electronic device 10, and the actual shapes, actual sizes, actual positions and actual structures of these components are not limited by Figure 1 and Figure 2 limited.

[0040] As Figure 1 and Figure 2 shown, in the embodiments of the present application, the electronic device 10 includes a display panel 100, a rear cover 400, and a middle frame 200. Among them, the rear cover 400 is disposed opposite to the display panel 100.

[0041] The display panel 100 is used to display images, videos, etc. As Figure 2As shown, the display panel 100 may include a light-transmitting cover plate 110 and a display screen 120. The light-transmitting cover plate 110 and the display screen 120 are stacked and fixedly connected by means such as gluing. The light-transmitting cover plate 110 is mainly used to protect the display screen 120 and prevent dust. The display screen 120 may be a flexible display screen or a rigid display screen. The display screen 120 may be an organic light-emitting diode display screen, an active matrix organic light-emitting diode or an active matrix organic light-emitting diode display screen, a mini light-emitting diode display screen, etc.

[0042] The middle frame 200 may include a middle plate 210 and a frame 220 surrounding the middle plate 210. The display panel 100 may be disposed on one side of the frame 220 by means such as bonding to fix the display panel 100 on the middle frame 200. The side where the display panel 100 is located constitutes the front of the electronic device 10. The rear cover 400 may be fixed to the side of the frame 220 opposite to the display panel 100 by bonding, snap connection or other means. The rear cover 400 forms the housing of the electronic device 10, and the rear cover 400 is used to protect the electronic components inside the electronic device 10.

[0043] The electronic device 10 further includes a battery 500. A battery compartment 211 is provided on the middle plate 210, and the battery 500 can be accommodated in the battery compartment 211. The battery 500 is used to supply power to various electronic components such as a circuit board 600 inside the electronic device 10.

[0044] The electronic device 10 further includes a circuit board 600. The circuit board 600 includes a main board 610 and a sub-board 620. The main board 610 and the sub-board 620 are respectively located on both sides of the battery compartment 211. The main board 610 is used to integrate control chips. In some embodiments, the main board 610 may be electrically connected to the display panel 100. The sub-board 620 may be used to integrate electronic components such as an antenna radio frequency front end and a universal serial bus device. The main board 610 and the sub-board 620 may be electrically connected by a flexible circuit board or a wire.

[0045] In the embodiment of the present application, the electronic device 10 further includes a pressure-sensitive button 300. The pressure-sensitive button 300 may be installed on the side frame 220 or the top frame 220 to serve as a side button or a top button.

[0046] Specifically, referring to Figures 3 to 5 where Figure 3 is Figure 2 a schematic connection diagram of the middle frame 200 and the pressure-sensitive button 300 shown; Figure 4 is Figure 3 an exploded view of the middle frame 200 and the pressure-sensitive button 300 shown; Figure 5 is Figure 3 a cross-sectional view taken at A-A in

[0047] As shown inFigures 3 to 5 As shown, in the embodiment of the present application, the frame 220 is provided with a first mounting groove 221 and a second mounting groove 222, and the opening of the first mounting groove 221 is located on the outer peripheral surface of the frame 220; the second mounting groove 222 is located on the side of the first mounting groove 221 close to the battery compartment 211, and the opening of the second mounting groove 222 is located on the side surface of the frame 220 opposite to the display panel 100 or the back cover 400.

[0048] The pressure-sensing key 300 includes a keycap 310 and a key module 330; the keycap 310 is installed in the first mounting groove 221 along the length direction or width direction of the electronic device 10, and the surface of the keycap 310 exposed to the first mounting groove 221 is a pressing surface 311, and the pressing surface 311 is used to receive the pressing force. A guide column 312 is provided on the side of the keycap 310 away from the pressing surface 311; the key module 330 is installed in the second mounting groove 222 along the thickness direction Z of the electronic device 10, and a through hole 2212 is provided on the bottom wall 2211 of the first mounting groove 221, and the key module 330 is provided with a positioning hole 333, and the guide column 312 passes through the through hole 2212 and is connected to the positioning hole 333 of the key module 330.

[0049] In the embodiment of the present application, the electronic device 10 includes a display panel 100, a back cover 400 and a middle frame 200, the middle frame 200 includes a middle plate 210 and a frame 220, the middle plate 210 is provided with a battery compartment 211, and the battery compartment 211 is used to accommodate a battery 500. The electronic device 10 also includes a pressure-sensitive key 300, the pressure-sensitive key 300 includes a key cap 310 and a key module 330, and the frame 220 is provided with a first mounting groove 221 and a second mounting groove 222, such as Figure 4As shown, by setting the opening of the first mounting groove 221 on the outer peripheral surface of the frame 220, the keycap 310 can be mounted in the first mounting groove 221 along the length direction or the width direction of the electronic device 10 during assembly; by setting the opening of the second mounting groove 222 on the surface of the frame 220 opposite to the display panel 100 or the rear cover 400, the key module 330 can be mounted in the second mounting groove 222 along the thickness direction Z of the electronic device 10 during assembly. By providing a through hole 2212 on the bottom wall 2211 of the first mounting groove 221, that is, on the wall surface of the first mounting groove 221 corresponding to its opening, the guiding column 312 of the keycap 310 can pass through the through hole 2212 and be connected to the key module 330, so that after the user touches the pressing surface 311 of the keycap 310 or slides on the pressing surface 311 of the keycap 310, the key module 330 can generate a feedback signal to complete event feedback and realize the corresponding key function. Different from the related art, in the embodiment of the present application, the opening of the second mounting groove 222 is provided on the surface of the frame 220 opposite to the display panel 100 or the rear cover 400, that is, the second mounting groove 222 opens along the thickness direction Z of the electronic device 10. By mounting the key module 330 in the second mounting groove 222 along the thickness direction Z of the electronic device 10, the assembly of the key module 330 and the frame 220 can be realized in a smaller space, and the side wall of the battery compartment 211 will not be damaged, so that the side wall of the battery compartment 211 remains intact, thereby ensuring battery safety and being beneficial to improving the structural stiffness of the middle frame 200, and further being beneficial to improving the reliability of the electronic device 10.

[0050] See Figure 6 , Figure 6 is Figure 3 a schematic structural diagram of the key module 330 of the pressure-sensitive key 300 shown in the figure.

[0051] As Figure 4 and Figure 6 shown, the key module 330 includes a flexible circuit board 340. One end of the flexible circuit board 340 is provided with a sensing plate 341, and a pressure sensing element 342 is provided on the surface of the sensing plate 341 close to the keycap 310. The pressure sensing element 342 is used to generate a feedback signal after the pressing surface 311 is pressed. By providing the pressure sensing element 342, after the pressing surface 311 of the keycap 310 is pressed, the pressure sensing element 342 can undergo a micro-deformation to generate a touch signal, and then the touch signal is transmitted to the circuit board of the electronic device 10 to complete event feedback and realize the corresponding key function.

[0052] In an embodiment of the present application, the button module 330 has an axisymmetric structure, and the axis of symmetry is the center line of the button module 330 in the extending direction Y; the flexible circuit board 340 includes a connecting line 343. One end of the connecting line 343 is connected to the middle position of the sensing plate 341 in the extending direction Y, and the pressure sensing elements 342 are distributed on both sides of the connecting line 343. A connector may be provided at the other end of the connecting line 343 and connected to the circuit board 600 of the electronic device 10 through the connector. Thus, bilateral multiplexing of the pressure-sensitive button 300 in the extending direction Y can be achieved, thereby increasing the interaction richness.

[0053] In an embodiment of the present application, the pressure-sensitive button 300 may be a volume button or a composite button having both volume adjustment function and switch function, and the present application does not limit this.

[0054] It can be understood that the extending direction Y of the button module 330 is the same as the extending direction of the second installation groove 222, and the extending direction Y of the button module 330 may be the length direction or the width direction of the electronic device 10.

[0055] See Figures 7 to 9 , Figure 7 is Figure 6 the cross-sectional view at B-B in Figure 8 is Figure 6 the structural schematic of the feedback component of the button module 330 shown in Figure 1 ; Figure 9 is Figure 8 the structural schematic of the feedback component shown in Figure 2 , Figure 9 the main body 351 of the upper armature 350 is not shown in

[0056] As Figures 6 to 9 shown, the button module 330 further includes a feedback component, and the feedback component includes an upper armature 350, a core 371, a coil 372 and a lower armature 360. The upper armature 350 is fixed to the side of the sensing plate 341 facing away from the keycap 310, and the lower armature 360 is fixed to the side of the upper armature 350 facing away from the sensing plate 341; the core 371 is located between the upper armature 350 and the lower armature 360; the coil 372 is disposed around the circumference of the core 371, and the upper armature 350 is provided with a wire passing hole 3513, and the coil 372 is connected to the flexible circuit board 340 through the wire passing hole 3513.

[0057] The upper armature 350, iron core 371, coil 372 and lower armature 360 can form an electromagnet. After a touch signal is generated, the flexible circuit board 340 supplies power to the coil 372 to drive the iron core 371 to generate magnetic force. Under the action of the magnetic force, the upper armature 350 and the lower armature 360 are magnetically attracted to each other, causing the upper armature 350 to bend and deform. After that, the coil 372 is powered off and the magnetic force disappears, and the upper armature 350 resets. Thus, the upper armature 350 can generate a vibration waveform, thereby forming a vibrating pressing feel and realizing touch feedback, avoiding accidental touches caused by multiple touches by the user.

[0058] In the embodiment of the present application, one side of the upper armature 350 is fixed to the sensing plate 341 of the flexible circuit board 340 through the adhesive layer 344, and the other end of the upper armature 350 is fixed to the lower armature 360 and the iron core 371. Thus, as Figure 4 shown, the button module 330 can be assembled as a whole, which can avoid problems such as many disassembled parts, large cumulative tolerances, and poor feedback force consistency caused by fixing each component to the frame 220 separately.

[0059] Specifically, in the embodiment of the present application, as Figure 4 shown, the button module 330 is provided with a first connection hole 331, and the first connection hole 331 extends along the thickness direction Z of the electronic device 10. The second mounting groove 222 is provided with a corresponding second connection hole 2222 at the end in the extending direction Y. The pressure-sensitive button 300 further includes a locking member. By sequentially inserting the locking member along the thickness direction Z of the electronic device 10 into the first connection hole 331 and the second connection hole 2222, the button module 330 can be installed in the second mounting groove 222. Thus, not only can the reliable connection between the button module 330 and the frame 220 be realized, but also the integrity of the retaining wall of the battery compartment 211 can be maintained, ensuring the safety of the battery 500 and the stiffness of the middle frame 200, and the assembly method is simple and the assembly difficulty is low.

[0060] Specifically, as Figure 4 and Figure 6As shown, in the key module 330, the upper armature 350 includes a main body portion 351 and a connecting ear 352. The main body portion 351 is a plate-like structure, and the connecting ear 352 is located at the end of the main body portion 351 along the extending direction Y. The connecting ear 352 is an L-shaped structure, and the connecting ear 352 includes a connected first sub-portion 3521 and a second sub-portion 3522. The first sub-portion 3521 is connected to the main body portion 351, and the second sub-portion 3522 is parallel to the bottom wall 2221 of the second installation groove 222. The first connection hole 331 penetrates through the second sub-portion 3522, and the locking member can pass through the second sub-portion 3522 of the connecting ear 352 and then be connected to the second installation groove 222 of the frame 220. By providing the connecting ear 352 on the upper armature 350, it is convenient to fix the connecting ear 352 to the second installation groove 222 through the locking member, thereby realizing the installation and fixation of the key module 330. Optionally, the locking member can be a locking screw.

[0061] In the embodiment of the present application, the main body portion 351 and the connecting ear 352 of the upper armature 350 can be a split structure, and the main body portion 351 and the connecting ear 352 are fixedly welded. In other embodiments of the present application, the main body portion 351 and the connecting ear 352 can also be integrally formed. The present application does not limit this.

[0062] In other embodiments of the present application, the key module 330 can be installed in the second installation groove 222 without a locking member. The pressure-sensitive key 300 further includes a limiting block, and the key module 330 and the limiting block are in interference fit in the second installation groove 222. The limiting block can limit the key module 330 in the direction perpendicular to the pressing surface 311 and in the thickness direction Z of the electronic device 10, thereby fixing the key module 330 in the second installation groove 222.

[0063] In the embodiment of the present application, as Figures 6 to 9 shown, the lower armature 360 is a ring frame structure. The lower armature 360 includes two side plates 361 arranged oppositely and a rear cover plate 362 connecting the two side plates 361. The main body portion 351 of the upper armature 350 and the lower armature 360 surround to form an accommodating space 332, and the iron core 371 and the coil 372 are located in the accommodating space 332. By setting the lower armature 360 as a ring frame structure, that is, the lower armature 360 adopts a circumferential magnetic yoke design, the confinement of magnetic field energy can be enhanced, the electromagnetic force of the feedback component can be improved, and thus the vibration amplitude of the upper armature 350 can be increased, making the pressing feel more obvious.

[0064] Further, the two side plates 361 of the lower armature 360 are parallel to the second sub - part 3522 of the connecting ear 352. Among them, extension parts 3611 are arranged at both ends of the side plate 361 close to the second sub - part 3522, and the extension parts 3611 are correspondingly connected to the second sub - part 3522. Thus, the connection between the lower armature 360 and the upper armature 350 can be realized, so that during the assembly process, the lower armature 360 does not need to be fixed to the frame 220 anymore, that is, the decoupling of the lower armature 360 and the frame 220 is realized. In this way, the cumulative tolerance can be reduced, and the consistency of the single - body gap can be ensured.

[0065] In the embodiment of the present application, the coil 372 and the upper armature 350 are fixedly connected. Thus, the problem of micro - motion reliability after the coil 372 is welded to the flexible circuit board 340 can be avoided, and the coil 372 can be kept in a relatively stable state, which is beneficial to improving the reliability of the feedback component.

[0066] Further, as Figure 7 shown, there is a preset gap between the coil 372 and the rear cover plate 362 of the lower armature 360, and the value of the preset gap is related to the magnitude of the electromagnetic force. In practical applications, experiments can be designed according to the actual magnitude of the electromagnetic force to verify and confirm the specific value of the preset gap, and then the distance between the coil 372 and the rear cover plate 362 of the lower armature 360 can be determined to reach the above - mentioned gap value through the gap shim and the welding scheme. Thus, the magnitude of the electromagnetic force can be guaranteed during use.

[0067] In the embodiment of the present application, the iron core 371 and the upper armature 350 are fixedly connected. Specifically, as Figure 8 and Figure 9 shown, a protrusion 3711 is arranged on the side of the iron core 371 close to the upper armature 350, a jack 3515 is arranged at the corresponding position of the upper armature 350, and the protrusion 3711 of the iron core 371 is inserted into the jack 3515 and welded and fixed to the upper armature 350. Thus, it is convenient to fix the iron core 371 to the upper armature 350.

[0068] Further, a buffer pad is arranged between the iron core 371 and the rear cover plate 362 of the lower armature 360. By arranging the buffer pad, the abnormal noise caused by the impact between the iron core 371 and the lower armature 360 under the action of magnetic force can be avoided.

[0069] In the embodiment of the present application, as Figure 6As shown in the figure, the main body 351 of the upper armature 350 is a plate-like structure with unequal thickness. The main body 351 has a first thickness part 3511 and a second thickness part 3512. The first thickness part 3511 corresponds to the position of the pressure sensing element 342, and the second thickness part 3512 corresponds to at least the position of the iron core 371. The thickness dimension of the second thickness part 3512 is greater than that of the first thickness part 3511. By setting the main body 351 as a plate-like structure with unequal thickness, the bending resistance of the main body 351 can be improved, and the sensitivity of the pressure sensing element 342 can be taken into account at the same time.

[0070] Specifically, considering that under the action of electromagnetic force, the coil 372, the iron core 371 and the upper armature 350 can bend together in the direction close to the rear cover plate 362 of the lower armature 360, the deformation amount of the part of the main body 351 connected to the iron core 371 is the largest. Therefore, the second thickness part 3512 corresponds to at least the position of the iron core 371, and the thickness is greater than that of the first thickness part 3511. Thus, while improving the bending resistance, the sensitivity of the pressure sensing element 342 can be ensured.

[0071] It should be noted that in the related art, generally, a shrapnel is arranged between the upper armature 350 and the lower armature 360 to improve the bending resistance of the upper armature 350. Compared with the solution of the related art, in this application, the bending resistance of the upper armature 350 is improved by setting the main body 351 as a plate-like structure with unequal thickness. Thus, there is no need to arrange a shrapnel between the upper armature 350 and the lower armature 360, so as to avoid the contradiction between the preloading of the shrapnel and the gap control, which is beneficial to improving the consistency of production assembly and the consistency of sliding feedback force.

[0072] In the embodiment of this application, as Figure 6 and Figure 7 shown, the second thickness part 3512 includes a reinforcing plate 3514. By welding the reinforcing plate 3514, the first thickness part 3511 can have a single-layer thickness, and the second thickness part 3512 can have a double-layer thickness. In other embodiments of this application, the second thickness part 3512 can also be bent to make the first thickness part 3511 have a single-layer thickness and the second thickness part 3512 have a double-layer thickness. Or, the MIM (Metal Injection Molding) process can also be used to make the thicknesses of the first thickness part 3511 and the second thickness part 3512 of the main body 351 unequal. In this way, the generation of weld seams can be avoided, thereby avoiding affecting the magnetic field distribution and the magnitude of the electromagnetic force.

[0073] In addition, in practical applications, the material of the upper armature 350 can be selected so that the material of the upper armature 350 has a relatively high yield limit. Thus, the stiffness of the upper armature 350 can be ensured. In a specific embodiment, the material of the upper armature 350 can be spring steel.

[0074] In the embodiment of the present application, as Figure 9 shown, the feedback component further includes a support structure 380, and the support structure 380 is supported between two side plates 361 of the lower armature 360. Thus, the structural strength of the lower armature 360 can be improved.

[0075] Specifically, in the accommodation space 332, the iron core 371 and the coil 372 are located in the middle of the accommodation space 332. There are two support structures 380, which are respectively located on both sides of the iron core 371. The support structure 380 includes a first support plate 381, a second support plate 382, and an inclined plate 383 connecting the first support plate 381 and the second support plate 382. The first support plate 381 contacts the side plate 361 of the lower armature 360 provided with the extension portion 3611, and the second support plate 382 mainly contacts the other side plate 361 of the lower armature 360. Thus, the structural strength of the lower armature 360 can be improved, and the mass of the entire feedback component can be made lighter.

[0076] In the thickness direction Z of the electronic device 10, the first connection hole 331 not only penetrates through the second sub - portion 3522 of the connecting ear 352, but also penetrates through the extension portion 3611 of the side plate 361 of the lower armature 360 and the first support plate 381. Thus, the upper armature 350, the lower armature 360, and the support structure 380 can be fixed.

[0077] Furthermore, the second support plate 382 is provided with a bending portion 3821 on the side close to the iron core 371. The bending portions 3821 on both sides of the iron core 371 and the main body portion 351 of the upper armature 350 and the rear cover plate 362 of the lower armature 360 enclose a closed space 373, and the iron core 371 and the coil 372 are placed in the closed space 373. Thus, the confinement of magnetic field energy can be enhanced.

[0078] In the embodiment of the present application, the feedback component further includes a magnetic isolation block 390. The magnetic isolation block 390 is located in the accommodation space 332 and is distributed on the periphery of the coil 372. The magnetic isolation block 390 can be located on the side of the bending portion 3821 away from the iron core 371. By providing the magnetic isolation block 390, the dissipation of electromagnetic force to the surrounding can be avoided, which is beneficial to further enhancing the confinement of magnetic field energy and improving the electromagnetic force.

[0079] As Figures 4 to 5 shown, when the pressure - sensitive button 300 of the embodiment of the present application is assembled, the button module 330 can be first placed in the second installation groove 222 along the thickness direction Z of the electronic device 10, and then the pressure - sensitive button 300 is inserted into the first installation groove 221. The guiding column 312 of the pressure - sensitive button 300 will pass through the through - hole 2212 of the first installation groove 221 to be connected with the button module 330.

[0080] Specifically, the pressure-sensitive button 300 includes a snap spring 320. A clamping groove 313 is provided at one end of the guiding column 312 that faces away from the pressing surface 311. The snap spring 320 is installed at the clamping groove 313. The snap spring 320 cooperates with the button module 330 to axially limit the guiding column 312. Thereby, relative fixation between the keycap 310 and the button module 330 can be achieved, and the keycap 310 can be prevented from falling off.

[0081] As Figure 5 shown, the positioning hole 333 penetrates through the sensing plate 341 and the upper armature 350 of the button module 330 in the direction away from the keycap 310. One end of the guiding column 312 that faces away from the keycap 310 extends between the upper armature 350 and the lower armature 360. The snap spring 320 cooperates with the upper armature 350, so that axial limitation of the keycap 310 can be achieved, and the assembly operation is relatively convenient.

[0082] In practical applications, the snap spring 320 can be customized according to the actual structure of the guiding column 312 and the actual structure of the upper armature 350, so that the snap spring 320 can fit the surface of the upper armature 350, ensuring that there is no looseness between the keycap 310 and the button module 330.

[0083] In the embodiment of the present application, a sealing ring can be sleeved on the guiding column 312, and the sealing ring is located in the first installation groove 221. By providing the sealing ring, water, dust, etc. can be prevented from entering the interior of the electronic device 10 from the first installation groove 221, which is beneficial to improving the dust and waterproof performance of the electronic device 10. Optionally, the sealing ring is an o-ring or a LIM waterproof ring.

[0084] Furthermore, a waterproof layer is also provided on the surface of the side of the frame 220 where the second installation groove 222 opens. Thereby, water can be prevented from entering the interior of the electronic device 10 from the display panel 100 or the rear cover 400, which is beneficial to further improving the dust and waterproof performance of the electronic device 10, so that the dust and waterproof performance of the electronic device 10 can reach the IP68 level. Optionally, the waterproof layer is a waterproof adhesive tape.

[0085] In the embodiment of the present application, as Figure 4 shown, a buffer member 2213 is installed on the bottom wall 2211 of the first installation groove 221. The buffer member 2213 can both support the keycap 310 and has a certain buffering effect, which can prevent the keycap 310 from being damaged under the impact. Optionally, the buffer member 2213 is a buffer foam.

[0086] After connecting the keycap 310 to the key module 330, the key module 330 can be fixed in the second installation groove 222 through a locking member. Thus, in a small space, the pressure-sensitive button 300 can be reliably assembled with the frame 220 without affecting the integrity of the battery compartment 211, ensuring battery safety and the strength of the middle frame 200, and having good dust and water resistance.

[0087] It should be noted that in the examples and descriptions of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0088] Although this application has been illustrated and described by reference to some preferred embodiments of this application, those of ordinary skill in the art should understand that various changes can be made in form and detail without departing from the spirit and scope of this application.

Claims

1. An electronic device, characterized in that, include: Display panel; A back cover, arranged opposite to the display panel; a middle frame, located between the display panel and the back cover, the middle frame comprising a middle plate and a frame surrounding the middle plate, the middle plate being provided with a battery compartment; the frame being provided with a first mounting groove and a second mounting groove, the opening of the first mounting groove being located on the outer peripheral surface of the frame; the second mounting groove being located on a side of the first mounting groove close to the battery compartment, the opening of the second mounting groove being located on a side surface of the frame opposite to the display panel or the back cover; The pressure-sensitive key includes a keycap and a key module; the keycap is installed in the first mounting groove along the length direction or the width direction of the electronic device, the surface of the keycap exposed to the first mounting groove is a pressing surface, the pressing surface is used to receive pressing force, and a guide column is provided on the side of the keycap away from the pressing surface; the key module is installed in the second mounting groove along the thickness direction of the electronic device, the bottom wall of the first mounting groove is provided with a through hole, the key module is provided with a positioning hole, and the guide column is connected with the positioning hole of the key module after passing through the through hole.

2. The electronic device according to claim 1, wherein The key module is provided with a first connection hole, the first connection hole extends along the thickness direction of the electronic device, and a corresponding second connection hole is provided in the second installation groove, and the pressure-sensitive key further includes a locking member, the locking member is sequentially inserted into the first connection hole and the second connection hole along the thickness direction of the electronic device, so as to install the key module in the second installation groove; Alternatively, the pressure-sensitive button also includes a limit block, the button module and the limit block are interference fit in the second mounting groove, and the limit block is used to limit the button module in a direction perpendicular to the pressing surface and in a thickness direction of the electronic device.

3. The electronic device according to claim 1, characterized in that, The pressure-sensitive button includes a clip, and a slot is provided at one end of the guide column away from the pressing surface. The clip is installed in the slot, and the clip cooperates with the button module to axially limit the guide column.

4. The electronic device according to claim 1, wherein A sealing ring is sleeved on the guide column, and the sealing ring is located in the first installation groove.

5. The electronic device according to claim 1, wherein A waterproof layer is also provided on the surface of one side of the frame where the second installation groove opening is provided.

6. The electronic device according to any one of claims 1-5, characterized in that, The key module includes a flexible circuit board, one end of the flexible circuit board is provided with a sensing board, a surface of the sensing board on one side close to the key cap is provided with a pressure sensing element, and the pressure sensing element is used to generate a feedback signal after the pressing surface is pressed; The key module also includes a feedback component, which includes an upper armature, an iron core, a coil and a lower armature, wherein the upper armature is fixed to the side of the induction plate away from the keycap, and the lower armature is fixed to the side of the upper armature away from the induction plate; the iron core is located between the upper armature and the lower armature; the coil is arranged around the circumference of the iron core, the upper armature is provided with a wire passing hole, and the coil is connected to the flexible circuit board through the wire passing hole.

7. The electronic device according to claim 6, wherein The upper armature includes a main body portion and a connecting ear. The main body portion is in a plate-like structure, and the connecting ear is located at an end of the main body portion along the extending direction. The connecting ear is in an L-shaped structure and includes a first sub-portion and a second sub-portion connected to each other. The first sub-portion is connected to the main body portion, and the second sub-portion is parallel to the bottom wall of the second mounting groove. The first connection hole penetrates through the second sub-portion, and the locking member is connected to the second mounting groove of the frame after passing through the second sub-portion of the connecting ear.

8. The electronic device according to claim 7, wherein The lower armature is in a ring frame structure and includes two side plates arranged oppositely and a rear cover plate connecting the two side plates. The main body portion of the upper armature and the lower armature surround to form a receiving space, and the iron core and the coil are located in the receiving space.

9. The electronic device according to claim 8, wherein The coil is fixedly connected to the upper armature, and there is a preset gap between the coil and the rear cover plate of the lower armature.

10. The electronic device according to claim 8, wherein A buffer pad is arranged between the iron core and the rear cover plate of the lower armature.

11. The electronic device according to claim 8, wherein The feedback assembly further includes a support structure, and the support structure is supported between the two side plates of the lower armature.

12. The electronic device according to claim 8, wherein, The feedback assembly further includes a magnetic isolation block, and the magnetic isolation block is located in the receiving space and distributed on the periphery of the coil.

13. The electronic device according to claim 7, wherein The main body portion is in a plate-like structure with unequal thicknesses and has a first thickness portion and a second thickness portion. The first thickness portion corresponds to the position of the pressure sensing element, and the second thickness portion at least corresponds to the position of the iron core. The thickness dimension of the second thickness portion is greater than that of the first thickness portion.

14. The electronic device according to claim 6, wherein The button module is in an axisymmetric structure, and the axis of symmetry is the center line of the button module in the extending direction. The flexible circuit board includes a connecting wire. One end of the connecting wire is connected to the middle position of the sensing plate in the extending direction. The pressure sensing elements are distributed on both sides of the connecting wire, and the other end of the connecting wire is connected to the circuit board of the electronic device.

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