Key structure and electronic equipment

Abstract

The invention discloses a key structure and electronic equipment, and belongs to the technical field of electronic equipment. The key structure comprises a contact piece, a first shell and a key, the first shell is provided with a mounting groove; the key is mounted in the mounting groove; wherein the key is provided with a contact element, and the contact element on the key is in contact with the first shell so as to limit the key in the first direction; or / and a contact element is mounted on the first shell, and the contact element on the first shell is in contact with the key so as to limit the key in the first direction; the first direction is parallel to the thickness direction of the electronic equipment. The electronic equipment comprises the key structure. The key can be limited in the thickness direction of the electronic equipment, and shaking of the key in the thickness direction of the electronic equipment is reduced.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to a button structure and an electronic device. Background Technology

[0002] With the development of technology, electronic devices such as mobile phones and tablets have continued to evolve. Among them, the development of flexible displays has led to the emergence of foldable screen phones. However, since foldable screen phones become thicker when folded, they are now being developed towards thinner and lighter designs. As the thickness of foldable screen phones decreases, the size of side buttons, such as fingerprint buttons (which may also have power functions), also becomes smaller. Insufficient contact between the fingerprint button and the phone's casing causes the fingerprint button to wobble relative to the casing, affecting the user experience. Summary of the Invention

[0003] This application provides a button structure and an electronic device to solve the technical problem of side buttons wobbling relative to the device housing in related technologies.

[0004] The technical solution is as follows:

[0005] The first aspect of this application provides a button structure for an electronic device, which includes: a contact, a first housing, and a button;

[0006] The first housing has a mounting groove;

[0007] The button is installed in the mounting slot;

[0008] Wherein, a contact element is installed on the button, and the contact element on the button contacts the first housing to limit the button in a first direction; or / and, a contact element is installed on the first housing, and the contact element on the first housing contacts the button to limit the button in a first direction.

[0009] The first direction is parallel to the thickness direction of the electronic device.

[0010] By adopting the above technical solution, a contact element is provided on at least one of the button and the first housing, so that the contact element on the button contacts the first housing, or / and the contact element on the first housing contacts the button, thereby generating frictional force to limit the button in the thickness direction of the electronic device and reduce the button's wobble in the thickness direction of the electronic device.

[0011] In some implementations, the key includes a keycap and a first support, with the keycap fixedly connected to the first support;

[0012] The keycap includes a touch surface and a first peripheral surface. The touch surface is connected to the first peripheral surface, and the first peripheral surface is positioned opposite to the wall of the mounting slot.

[0013] By adopting the above technical solution, the fixed connection between the keycap and the first bracket ensures the overall stability of the key; the touch surface of the keycap can be touched by the user, and the key can also be pressed to realize related functions, such as fingerprint recognition, power switch, etc.

[0014] In some implementations, a contact element is mounted on the first circumferential surface. The contact element on the first circumferential surface is annular, and there is an interference fit between the contact element on the first circumferential surface and the wall of the mounting groove in a first direction.

[0015] By adopting the above technical solution, a ring-shaped contact element is installed on the first circumference. This arrangement of the contact element around the first circumference, utilizing the interference fit between the contact element and the wall of the mounting groove, reduces the wobble of the keycap in the first direction, thereby reducing key movement in the first direction. It also helps to achieve the waterproof and dustproof functions of the key structure. Furthermore, because the contact element is arranged around the first circumference, it also reduces the wobble of the keycap in the opposite direction perpendicular to the first direction.

[0016] In some implementations, the button also includes an additional layer, with a first groove on the first peripheral surface;

[0017] The first groove extends along the length of the first circumferential surface, so that the first groove is annular;

[0018] An additional layer is fixed to a portion of the bottom surface of the first groove;

[0019] The contact element on the first circumference is installed in the first groove.

[0020] By adopting the above technical solution, after the keycap is assembled with the first housing, if there is a misalignment of the keycap relative to the first housing in the first direction, it will aggravate the wobble of the keycap. Replacing the entire keycap or the keycap would increase material costs. After determining the offset of the keycap relative to the first housing in the first direction, an additional layer is added to the first groove, and finally the contact is installed on the first circumferential surface. This solves the problem of the keycap misalignment relative to the first housing in the first direction, thereby saving material costs.

[0021] In some implementations, the additional layer is made using 3D printing technology.

[0022] By adopting the above technical solution and using 3D printing to additively manufacture additional layers, the keycaps with misalignment problems can be replaced without replacement, which helps to reduce material costs.

[0023] In some implementations, the first bracket includes a bracket body and limiting legs, with the keycap fixedly connected to the bracket body;

[0024] The button structure also includes a release mechanism, which is fixedly connected to the first housing and is located in the mounting groove.

[0025] The anti-detachment component can contact the limiting leg to keep the button confined in the mounting slot.

[0026] By adopting the above technical solution, the main body of the bracket can provide support for the keycaps and facilitate the fixing of the keycaps, thus ensuring the stability of the key structure; while the anti-detachment component can prevent the key from coming out of the mounting slot, thereby preventing the key from falling off the first shell.

[0027] In some implementations, the first support also includes an anti-sway column, which is fixedly connected to the support body and is located on one side of the midpoint of the support body in the length direction.

[0028] The anti-sway post is fitted with a contact element, and the contact element on the anti-sway post is interference-fitted with the wall of the mounting groove in the first direction.

[0029] By adopting the above technical solution, after the anti-sway column is fixedly connected to the main body of the bracket, the anti-sway column can reduce the shaking generated by the button during the pressing process, and maintain the accurate positioning and stable operation of the button; while the contact element is sleeved on the anti-sway column to further reduce the shaking of the button in the first direction.

[0030] In some implementations, the limiting leg includes a first leg and a second leg. One end of the first leg along its length is fixedly connected to the main body of the support, and the other end of the first leg along its length is connected to one end of the second leg along its length. The length directions of the first leg, the second leg, and the first direction are perpendicular to each other.

[0031] A receiving cavity is formed between the second leg and the main body of the bracket. The anti-disengagement component is inserted into the receiving cavity and can contact the second leg so that the button is limited to the mounting groove.

[0032] By adopting the above technical solution, the anti-dislodgement component is inserted into the receiving cavity to prevent the button from falling out of the mounting slot.

[0033] In some implementations, a contact element is mounted on the first leg, and the contact element on the first leg has an interference fit with the wall of the mounting groove in a first direction;

[0034] Or / and, a contact element is installed on the second leg, and the contact element on the second leg has an interference fit with the wall of the mounting groove in the first direction.

[0035] By adopting the above technical solution, a contact is installed on at least one of the first leg and the second leg, and the contact is interference-fitted with the wall of the mounting groove in the first direction. This can reduce the shaking of the button in the first direction and also help to achieve waterproofing, preventing external liquids from entering the interior of the electronic device.

[0036] In some implementations, a contact is mounted on the first housing, the contact on the first housing is located in a mounting groove, and the contact on the first housing abuts against the other end of the second leg in the longitudinal direction.

[0037] By adopting the above technical solution, the contact element provided on the first housing abuts against the end of the second leg, which can also reduce the shaking of the button in the first direction to a certain extent.

[0038] In some implementations, the button also includes a first guide rod, one end of which is fixedly connected to the first bracket;

[0039] The button structure also includes a power module, which includes a power circuit board and a touch switch. The touch switch is mounted on the power circuit board, and the first guide rod can trigger the touch switch.

[0040] By adopting the above technical solution, when the button is pressed, the first guide rod moves along the pressing direction. After the first guide rod contacts the touch switch, the pressing operation of the touch switch is realized, thereby realizing the corresponding function, such as turning the electronic device on or off.

[0041] In some implementations, the first guide rod and the first bracket are an integral structure;

[0042] A first elastic element is provided between the other end of the first guide rod and the touch switch, and the other end of the first guide rod and the touch switch are respectively in contact with the first elastic element.

[0043] By adopting the above technical solution, the first guide rod and the first bracket are integrated into one structure. In this way, the first guide rod can also perform the function of anti-shake, and it is also convenient to manufacture the first bracket and the first guide rod, and can also save assembly costs. The first elastic element can also reduce the shaking of the button in the first direction to a certain extent, and can also reduce the possibility of the end of the first guide rod damaging the touch switch.

[0044] In some implementations, the button structure also includes a fingerprint module, which is mounted on the button. The fingerprint module includes a fingerprint circuit board, which is fixedly connected to the button.

[0045] By adopting the above technical solutions, fingerprint modules can facilitate the fingerprint unlocking function of electronic devices.

[0046] In some implementations, the button structure also includes a power fingerprint module, which is mounted on the button. The power fingerprint module includes a first circuit board and a touch switch. The touch switch is mounted on the first circuit board, and a second guide rod is mounted on the bottom of the mounting slot. The second guide rod can trigger the touch switch.

[0047] A second elastic element is provided between the first bracket and the bottom of the mounting groove, and the first bracket and the bottom of the mounting groove are in contact with the second elastic element; or, a third elastic element is provided between the second guide rod and the bottom of the mounting groove, and the second guide rod and the bottom of the mounting groove are in contact with the third elastic element.

[0048] By adopting the above technical solution, the power fingerprint module integrates the functions of power switch and fingerprint unlocking, thus saving assembly costs. The second and third elastic components can, to some extent, reduce button wobble in the first direction.

[0049] A second aspect of this application provides an electronic device that includes the button structure described in any of the above implementations.

[0050] By adopting the above technical solution, after the button structure is applied to an electronic device, a contact element is provided on at least one of the button and the first housing. In this way, the contact element on the button contacts the first housing, or / and the contact element on the first housing contacts the button, thereby generating frictional force to limit the button in the thickness direction of the electronic device, reduce the button's wobble in the thickness direction of the electronic device, and thus improve the user experience.

[0051] In some implementations, the electronic device further includes a second housing, a pivot mechanism, and a flexible display screen; the first housing and the second housing are respectively connected to the pivot mechanism, and the first housing and the second housing can rotate relative to each other through the pivot mechanism; the flexible display screen is connected to both the first housing and the second housing.

[0052] By adopting the above technical solution, electronic devices can be folded for easy carrying. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiment of this application in a folded state;

[0054] Figure 2 This is a schematic diagram of the electronic device provided in the embodiments of this application in a semi-deployed state;

[0055] Figure 3 This is a schematic diagram of the electronic device provided in the embodiment of this application in its unfolded state;

[0056] Figure 4This is a partial structural diagram of the side button being assembled with the device housing in related technologies;

[0057] Figure 5 yes Figure 4 A partial structural diagram showing the fit between the support leg structure of the center button and the device housing;

[0058] Figure 6 This is a partial structural diagram of another type of side button assembled with the device housing in related technologies;

[0059] Figure 7 yes Figure 6 A partial structural diagram showing the interaction between the buttons and the device housing;

[0060] Figure 8 This is a schematic diagram of the first type of button structure provided in the embodiments of this application;

[0061] Figure 9 yes Figure 8 A schematic diagram of the local structure at point E in the middle when viewed from the first direction;

[0062] Figure 10 This is a schematic diagram of the second type of button structure provided in the embodiments of this application;

[0063] Figure 11 This is a schematic diagram of the third type of button structure provided in the embodiments of this application;

[0064] Figure 12 This is a schematic diagram of the fourth type of button structure provided in the embodiments of this application;

[0065] Figure 13 This is a schematic diagram of the fifth type of button structure provided in the embodiments of this application;

[0066] Figure 14 This is a schematic diagram of the sixth type of button structure provided in the embodiments of this application;

[0067] Figure 15 This is a schematic diagram of the seventh type of button structure provided in the embodiments of this application;

[0068] Figure 16 This is a schematic diagram of the eighth type of button structure provided in the embodiments of this application;

[0069] Figure 17 This is a process flow diagram of processing keycaps with misalignment in the embodiments of this application;

[0070] Figure 18 This is a schematic diagram of the ninth type of button structure provided in the embodiments of this application;

[0071] Figure 19 This is a schematic diagram of the tenth type of button structure provided in the embodiments of this application.

[0072] The meanings of the various symbols in the attached icons are as follows:

[0073] 10. Button hole; 11. Side button; 12. Support leg structure; 13. Equipment housing;

[0074] 100. Rotating shaft mechanism;

[0075] 200. Display module; 201. First part; 202. Second part; 203. Foldable part;

[0076] 301. First shell; 302. Second shell;

[0077] 401. Contact element; 402. Button; 403. Mounting slot; 404. Keycap; 405. First bracket; 406. Touch surface; 407. First peripheral surface; 408. Fingerprint module; 409. Fingerprint circuit board; 410. Reinforcing plate; 411. Bracket body; 412. Limiting leg; 413. Anti-detachment component; 414. First leg; 415. Second leg; 416. Receiving cavity; 417. Through-hole structure; 418. First guide 419. Rod; 420. Power module; 421. Power circuit board; 422. Touch switch; 423. First through hole; 424. Guide rod sealing ring; 425. Buffer; 426. First limiting hole; 427. Anti-sway column; 428. Power fingerprint module; 429. First circuit board; 430. Second guide rod; 431. First groove; 432. Additional layer; 433. Second elastic element; 434. Third elastic element; 435. First elastic element. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0079] It should be understood that "multiple" as mentioned in this application refers to two or more. In the description of this application, unless otherwise stated, " / " indicates "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist, for example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of this application, the terms "first," "second," etc., are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and that "first," "second," etc., do not necessarily imply differences.

[0080] The button structure and electronic device provided in the embodiments of this application will be explained in detail below.

[0081] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the electronic device provided in the embodiment of this application in a folded state. Figure 2 This is a schematic diagram of the electronic device provided in the embodiments of this application in a semi-deployed state. Figure 3 This is a schematic diagram of the electronic device provided in the embodiment of this application in its unfolded state.

[0082] In one or more embodiments, this application provides an electronic device, which can be a foldable electronic device. The electronic device includes a housing structure and a pivot mechanism 100. The housing structure includes a first housing 301 and a second housing 302, which are respectively connected to the pivot mechanism 100. The first housing 301 and the second housing 302 can rotate relative to each other through the pivot mechanism 100. Exemplary electronic devices can be mobile phones, tablets, laptops, e-readers, or wearable devices. Wearable devices can be smartwatches. Foldable electronic devices are not limited to electronic devices with a foldable display module 200, such as mobile phones, but can also be electronic devices where the display module 200 and the keyboard can be folded or unfolded, such as laptops. It is understood that the electronic device can also be an electronic device without a display module 200. It should be noted that in some other possible embodiments, the electronic device can also be a candybar mobile phone.

[0083] In this embodiment, taking a mobile phone as an example, the electronic device further includes a display module 200, which can be a flexible display module. The display module 200 is connected to the first housing 301 and the second housing 302 respectively. The first housing 301 and the second housing 302 can include the mid-frame of the mobile phone.

[0084] For ease of description, as shown in the figure, the width direction of the foldable electronic device can be defined as the BB direction, the length direction as the AA direction, and the thickness direction as the CC direction. The AA, BB, and CC directions are mutually perpendicular, forming a Cartesian coordinate system. The axis of the rotating shaft mechanism 100 is parallel to the AA direction.

[0085] Combination Figure 2 and Figure 3 As shown, Figure 2 The unfolding angle α of the foldable electronic device shown is 90 degrees. Figure 3 The unfolding angle β of the foldable electronic device shown is 180 degrees. The state of the electronic device is the same as the state of the hinge mechanism 100, that is, when the foldable electronic device is in the folded state, the hinge mechanism 100 is also in the folded state; when the foldable electronic device is in the semi-unfolded state, the hinge mechanism 100 is also in the semi-unfolded state; when the foldable electronic device is in the unfolded state, the hinge mechanism 100 is also in the unfolded state.

[0086] It should be noted that the angles illustrated in the embodiments of this application are allowed to have slight deviations. For example, Figure 2 The unfolding angle α of the foldable electronic device shown is 90 degrees, which means that α can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 100 degrees. Figure 3 The unfolding angle β of the foldable electronic device shown is 180 degrees. This means that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles illustrated in the following text can be understood in the same way.

[0087] Please combine Figure 1 and Figure 2As shown, the first housing 301 and the second housing 302 are respectively mounted on both sides of the rotating shaft mechanism 100. The display module 200 includes a first part 201, a second part 202, and a foldable part 203. The foldable part 203 is located between the first part 201 and the second part 202, and the foldable part 203 can be bent around an axis parallel to the AA direction. In this embodiment, the display module 200 uses a flexible display screen, such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MOLED) display screen, a micro organic light-emitting diode (MicroOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, etc.

[0088] The first housing 301 and the second housing 302 are brought closer together to cause the display module 200 to fold, thereby enabling the foldable electronic device to fold. When the foldable electronic device is in the folded state, the foldable portion 203 of the display module 200 bends, with the first portion 201 and the second portion 202 positioned opposite each other.

[0089] Please refer to the following: Figure 2 The first housing 301 and the second housing 302 rotate relative to each other via a pivot mechanism 100. The relative movement of the first housing 301 and the second housing 302 causes the display module 200 to unfold, thus unfolding the foldable electronic device to a semi-unfolded state. When the foldable electronic device is in the semi-unfolded state, the first housing 301 and the second housing 302 unfold to an angle α, with the first part 201 and the second part 202 unfolding relative to each other, causing the foldable part 203 to unfold. At this time, the angle between the first part 201 and the second part 202 is α.

[0090] Please combine Figure 2 and Figure 3 As shown, the first housing 301 and the second housing 302 rotate relative to each other via the pivot mechanism 100. The relative movement of the first housing 301 and the second housing 302 causes the display module 200 to unfold further until the foldable electronic device is flattened. The pivot mechanism 100 may have a damping mechanism to provide a smooth opening and closing feel and maintain the desired state during rotation.

[0091] When the electronic device is in a flattened state, the angle between the first housing 301 and the second housing 302 is β. The foldable portion 203 unfolds, and the first portion 201 and the second portion 202 unfold relative to each other. At this time, the angle between the first portion 201, the second portion 202, and the foldable portion 203 is all β, and the display module 200 has a large display area, realizing a large-screen display for the foldable electronic device and improving the user experience.

[0092] It should be noted that both included angle α and included angle β are the included angles between the first housing 301 and the second housing 302. These are used here only to distinguish the different angles between the first housing 301 and the second housing 302 in different states of the foldable electronic device. Specifically, included angle α refers to the angle between the first housing 301 and the second housing 302 when the foldable electronic device is in its semi-open state; included angle β refers to the angle between the first housing 301 and the second housing 302 when the foldable electronic device is in its open state.

[0093] In the embodiments of this application, see Figures 1 to 3 As shown, the phone can be an inward-folding screen phone. When folded, the display module 200 is hidden, while the first housing 301 and the second housing 302 are exposed. In this way, the display module 200 is protected by the first housing 301 and the second housing 302. Of course, it is understandable that the phone can also be an outward-folding screen phone, in which the display module 200 is exposed when folded.

[0094] See Figure 2 and Figure 3 As shown, a button 402 is provided on the side formed by the thickness and length of the first housing 301. The button 402 can be used to perform some operations on the electronic device. For example, the button 402 can control the volume of the electronic device, turn it on and off (i.e., power switch), restart, unlock with fingerprint, and serve as a shortcut key to launch applications such as voice assistants, capture the screen, etc.

[0095] It should be noted that the button 402 is not limited to being set on the side surrounded by the thickness and length, but can also be set on the side surrounded by the thickness and width, such as on the top or bottom surface of the electronic device; the button 402 can also be set on the second housing 302.

[0096] Figure 4 This is a partial structural diagram of the side button 11 assembled with the device housing 13 in related technologies; see [link / reference]. Figure 4As shown, in related technologies, a button hole 10 is provided on the outer side of the device housing 13 of the foldable screen phone in the thickness direction. A side button 11 is installed in the button hole 10. The side button 11 is limited in the button hole 10 by the support leg structure 12, so that the side button 11 cannot be dislodged from the button hole 10. Figure 5 yes Figure 4 A partial structural diagram showing the fit between the support leg structure 12 of the center button and the device housing 13. Specifically, Figure 5 yes Figure 4 The diagram shows the state when the middle support structure 12 at position D is engaged with the device housing 13. As the thickness of the foldable screen phone decreases, the size of the side button 11 on the side of the foldable screen phone also becomes smaller. The contact amount between the support structure 12 of the side button 11 and the device housing 13 of the phone is insufficient, and there is a gap between the support structure 12 of the side button 11 and the device housing 13 in the thickness direction of the foldable screen phone. This causes the fingerprint button to wobble significantly relative to the device housing 13, affecting the user experience. Figure 6 This is a partial structural diagram of another example in related technologies where the side button 11 is assembled with the device housing 13. See [link / reference]. Figure 6 As shown, Figure 6 The side button 11 shown is Figure 4 Compared to the side button 11, Figure 6 The structure of the side button 11 is relatively simple, which leads to a further reduction in the amount of contact between it and the device housing 13. Figure 7 yes Figure 6 A partial structural diagram showing the interaction between the button and the device housing 13; see [link / reference]. Figure 7 As shown, there is a gap between the button and the button hole 10 on the outer side of the device housing 13 in the thickness direction, which causes the fingerprint button to wobble significantly relative to the device housing 13, affecting the user experience.

[0097] Therefore, this application provides a button structure to solve the problems in related technologies. The button structure provided in this application is described in detail below.

[0098] Figure 8 This is a schematic diagram of the first type of button structure provided in the embodiments of this application; see also Figure 8As shown, in one or more embodiments, the button structure includes a contact 401, a button 402, and a first housing 301; the first housing 301 has a mounting groove 403; the button 402 is mounted in the mounting groove 403; wherein, the contact 401 is mounted on the button 402, and the contact 401 on the button 402 contacts the first housing 301 to limit the button 402 in a first direction; or / and, the contact 401 is mounted on the first housing 301, and the contact 401 on the first housing 301 contacts the button 402 to limit the button 402 in a first direction; the first direction is parallel to the thickness direction of the electronic device. At least one embodiment of this application provides a button structure in which a contact 401 is provided on at least one of the button 402 and the first housing 301, such that the contact 401 on the button 402 contacts the first housing 301, or / and the contact 401 on the first housing 301 contacts the button 402, thereby generating friction to limit the button 402 in the thickness direction of the electronic device and reduce the wobbling of the button 402 in the thickness direction of the electronic device.

[0099] See Figure 8 As shown, in some embodiments, the mounting groove 403 is formed on the side surface enclosed by the length and thickness of the first housing 301. A portion of the button 402 extends out of the groove opening of the mounting groove 403, so that a portion of the button 402 protrudes from the side surface, facilitating the user to press the button 402 and enabling the button 402 to move along the width direction of the electronic device. For example, when a contact 401 is mounted on the button 402, the contact 401 on the button 402 abuts against the opposite side walls of the first housing 301 in a first direction. The opposite side walls of the first housing 301 in the first direction are the two opposite groove walls of the mounting groove 403 in the first direction. The contact 401 on the button 402 is held in place by the two opposite groove walls in the first direction, thereby limiting the button 402 in the first direction and reducing the button 402's wobble in the first direction. When a contact 401 is installed on the first housing 301, the contact 401 on the first housing 301 abuts against the button 402, so that friction can be generated between the button 402 and the contact 401 on the first housing 301. The direction of the friction force on the button 402 is parallel to the first direction, thereby using friction to reduce the shaking of the button 402 in the first direction.

[0100] See Figure 8As shown, in some embodiments, the button 402 includes a keycap 404 and a first bracket 405. The keycap 404 is fixedly connected to the first bracket 405, thus ensuring the overall stability of the button 402. The keycap 404 includes a touch surface 406 and a first peripheral surface 407. The touch surface 406 is connected to the first peripheral surface 407, and the first peripheral surface 407 is disposed opposite to the groove wall of the mounting groove 403. The touch surface 406 of the keycap 404 can be touched by the user, and the button 402 can also be pressed to realize related functions, such as fingerprint recognition, power switch, etc. For example, the length direction of the keycap 404 is parallel to the length direction of the electronic device, and the width direction of the keycap 404 is parallel to the thickness direction of the electronic device. The connection between the keycap 404 and the first bracket 405 can be glued and fixed. A snap-fit ​​structure can be formed between the first bracket 405 and the first housing 301 so that the button 402 is limited in the mounting groove 403 and will not fall off the first housing 301.

[0101] See Figure 8 As shown, in some embodiments, the button structure further includes a fingerprint module 408, which is mounted on the button 402. The fingerprint module 408 includes a fingerprint circuit board 409, which is fixedly connected to the button 402. This fingerprint module 408 facilitates the fingerprint unlocking function of the electronic device. For example, the keycap 404 can be a fingerprint chip, such as a capacitive fingerprint recognition chip. The fingerprint chip is electrically connected to the fingerprint circuit board 409, allowing the fingerprint chip and fingerprint module 408 to work together to achieve fingerprint recognition, thus facilitating the fingerprint unlocking function of the electronic device. The fingerprint circuit board 409 is electrically connected to the motherboard of the electronic device. The fingerprint circuit board 409 is disposed between the first bracket 405 and the keycap 404, and the fingerprint circuit board 409, the first bracket 405, and the keycap 404 are fixedly connected, for example, by adhesive bonding.

[0102] See Figure 8 As shown, in some embodiments, the fingerprint module 408 further includes a reinforcing plate 410, which is located between the fingerprint circuit board 409 and the first bracket 405. The reinforcing plate 410, the fingerprint circuit board 409, and the first bracket 405 are fixedly connected, for example, by adhesive bonding. The reinforcing plate 410 ensures the flatness and structural strength of the fingerprint circuit board 409 and facilitates the installation of the fingerprint circuit board 409 between the first bracket 405 and the keycap 404. For example, the fingerprint circuit board 409 can be a flexible circuit board.

[0103] See Figure 8As shown, in some embodiments, the first bracket 405 includes a bracket body 411 and a limiting leg 412, with the keycap 404 fixedly connected to the bracket body 411. The key structure also includes an anti-detachment member 413, which is fixedly connected to the first housing 301 and located in the mounting groove 403. The anti-detachment member 413 can contact the limiting leg 412, thereby limiting the keycap 402 to the mounting groove 403. In this way, the bracket body 411 provides support for the keycap 404 and facilitates its fixation, ensuring the stability of the key structure. The anti-detachment member 413 prevents the keycap 402 from detaching from the mounting groove 403, thus preventing the keycap 402 from falling off the first housing 301. For example, a reinforcing plate 410 is fixedly connected to the bracket body 411, thus using the bracket body 411 to support the reinforcing plate 410. The support body 411 and the limiting leg 412 are integrated into one structure, which facilitates the manufacturing of the first support 405. The keycap 404 can be glued to the support body 411. The anti-detachment component 413 can be inserted into the first housing 301. For example, the first housing 301 has an insertion hole, and the two ends of the anti-detachment component 413 are respectively inserted into the insertion hole and fixedly connected to the insertion hole. The anti-detachment component 413 and the insertion hole can be glued or fixed by interference fit. The anti-detachment component 413 and the first housing 301 are designed as separate structures. In this way, during assembly, the key 402 can be inserted into the mounting groove 403 first, and then the anti-detachment component 413 can be installed on the first housing 301 and fixed. This assembly method facilitates the installation of the key 402. The part between the two ends of the anti-detachment component 413 is located in the mounting groove 403. In this way, the anti-detachment component 413 cooperates with the limiting leg 412 to realize the installation of the key 402 in the mounting groove 403. There are two limiting legs 412, which are spaced apart along the length of the keycap 404 to ensure the stability of the keycap 402 in the mounting groove 403. There are also two anti-detachment components 413, each corresponding to one of the two limiting legs 412. The anti-detachment component 413 can be a long strip structure, with its length parallel to the thickness direction of the electronic device.

[0104] It should be noted that in some other possible embodiments, the anti-detachment component 413 and the first housing 301 can also be an integral structure, for example, manufactured using an integral molding process. This facilitates manufacturing and simplifies assembly. The limiting leg 412 can be made of a material with a certain degree of elasticity, so that during installation, the limiting leg 412 can be easily inserted into the mounting groove 403 due to elastic deformation and be limited. The two anti-detachment components 413 can be one integral structure with the first housing 301, and the other anti-detachment component 413 can be bonded or interference-fitted to the first housing 301.

[0105] See Figure 8 As shown, in some embodiments, the limiting leg 412 includes a first leg 414 and a second leg 415. One end of the first leg 414 in the length direction is fixedly connected to the support body 411, and the other end of the first leg 414 in the length direction is connected to one end of the second leg 415 in the length direction. The length directions of the first leg 414, the second leg 415, and the first direction are perpendicular to each other. A receiving cavity 416 is formed between the second leg 415 and the support body 411. The anti-detachment member 413 is inserted into the receiving cavity 416. The anti-detachment member 413 can contact the second leg 415 so that the button 402 is limited to the mounting groove 403. In this way, inserting the anti-detachment member 413 into the receiving cavity 416 can prevent the button 402 from being dislodged from the mounting groove 403. For example, the length direction of the first leg 414 is parallel to the width direction of the electronic device, and the length direction of the second leg 415 is parallel to the length direction of the electronic device. One end of the length direction of the second leg 415 is close to the midpoint of the length of the support body 411, while the other end of the length direction of the second leg 415 is far from the midpoint of the length of the support body 411. The length direction of the support body 411 is parallel to the length direction of the electronic device. The other end of the length direction of the second leg 415 can be a free end, which can appropriately increase the size of the anti-detachment member 413 and improve the structural strength of the anti-detachment member 413.

[0106] It should be noted that in some other possible implementations, the other end of the second leg 415 in the length direction can also be connected to the bracket body 411, so that the second leg 415, the first leg 414 and the bracket body 411 form a closed loop, which makes the receiving cavity 416 form a through hole structure 417, and the anti-detachment member 413 is inserted into the through structure on the first bracket 405 to prevent the button 402 from being dislodged from the mounting groove 403.

[0107] See Figure 8As shown, in some embodiments, button 402 further includes a first guide rod 418, one end of which is fixedly connected to the first bracket 405. The button structure also includes a power module 419, which includes a power circuit board 420 and a touch switch 421. The touch switch 421 is mounted on the power circuit board 420, and the first guide rod 418 can trigger the touch switch 421. When button 402 is pressed, the first guide rod 418 moves along the pressing direction. After the first guide rod 418 contacts the touch switch 421, it realizes the pressing operation of the touch switch 421, thereby realizing the corresponding function, such as turning the electronic device on or off. Of course, in some possible cases, it can also realize functions such as restarting, fingerprint unlocking, using it as a shortcut key to launch applications such as voice assistants, and taking screenshots. For example, the first guide rod 418 is fixedly connected to the first bracket 405. The fixed connection method can be adhesive, welding, or threaded connection. Specifically, the first guide rod 418 is fixedly connected to the bracket body 411. The power circuit board 420 is connected to the main board of the electronic device; the touch switch 421 can be a dome switch; the bottom of the mounting slot 403 has a first through hole 422, the first guide rod 418 is inserted into the first through hole 422, and the end of the first guide rod 418 can extend out of the first through hole 422, so that the first guide rod 418 can press the touch switch 421. The length of the first guide rod 418 is parallel to the width direction of the electronic device, so that when the keycap 404 is pressed, the keycap 404, the first bracket 405 and the first guide rod 418 move together, so that the first guide rod 418 moves along its own length direction, so that the end of the first guide rod 418 presses the touch switch 421. An elastic guide rod sealing ring 423 can be fitted on the first guide rod 418. The guide rod sealing ring 423 can be an O-ring, so as to achieve a waterproof seal.

[0108] See Figure 8 As shown, in some embodiments, an elastic buffer 424 is provided between the end face of the opening of the first through hole 422 and the bracket body 411, and a buffer 424 is provided between the second leg 415 and the bottom of the mounting groove 403. In this way, when the button 402 is not pressed, the buffer 424 can reduce the wobbling of the button 402 in the width direction of the electronic device, that is, the button 402 will not wobble in the depth direction of the mounting groove 403. On the other hand, when the button 402 is pressed, the buffer 424 can be compressed, thereby realizing the movement of the first guide rod 418. The material of the buffer 424 can be foam, silicone, or rubber, or other elastic materials; the buffer 424 can also be a metal spring.

[0109] Figure 9 This is a schematic diagram of the assembly state between the contact 401 on the first leg 414 and the mounting groove 403 in an embodiment of this application. Figure 9 yes Figure 8 A partial structural diagram of point E when viewed in the first direction (the thickness direction of the electronic device), combined with... Figure 8 and Figure 9 As shown, in some embodiments, a contact 401 is mounted on the first leg 414, and the contact 401 on the first leg 414 has an interference fit with the groove wall of the mounting groove 403 in a first direction. This interference fit between the contact 401 and the groove wall of the mounting groove 403 in the first direction reduces the wobble of the button 402 in the first direction and also helps to achieve waterproofing, preventing external liquids from entering the interior of the electronic device. For example, of the two anti-detachment members 413, one anti-detachment member 413 is an integral structure with the first housing 301, and the other anti-detachment member 413 is a separate structure from the first housing 301, which facilitates the installation of the button 402; the contact 401 is mounted on the first leg 414 of the limiting leg 412 corresponding to the anti-detachment member 413 which is an integral structure with the first housing 301. An anti-detachment member 413, integrally formed with the first housing 301, creates a first limiting hole 425 between itself and the first housing 301. A first leg 414 is inserted into the first limiting hole 425, while a second leg 415 is located between the anti-detachment member 413 and the bottom of the mounting groove 403, thus limiting the second leg 415 and preventing the button 402 from dislodging from the mounting groove 403. The contact member 401 on the first leg 414 has an interference fit with the wall of the first limiting hole 425 in the first direction. The wall of the mounting groove 403 includes the wall of the first limiting hole 425, reducing the wobbling of the button 402 in the first direction and also reducing the wobbling of the button 402 along the length of the electronic device. The contact element 401 can be in the form of a sealing ring, which is fitted onto the first leg 414, such as an O-ring. The contact element 401 is elastic, which ensures the effectiveness of its function and prevents excessive wobble of the button 402 in the first direction during long-term use. To prevent the contact element 401 from shifting along the length of the first leg 414, an annular groove (not shown) can be formed on the first leg 414, confining the contact element 401 within the annular groove.

[0110] It should be noted that in some other possible embodiments, the contact element 401 can also be installed on the first leg 414 of both limiting legs 412 of the button 402. In addition, the contact element 401 on the first leg 414 can also be formed on the first leg 414 by LIM (Liquid Injection Molding).

[0111] Figure 10 This is a schematic diagram of the second type of button structure provided in the embodiments of this application; see also Figure 10 As shown, a contact 401 is mounted on the second leg 415, and the contact 401 on the second leg 415 has an interference fit with the groove wall of the mounting groove 403 in the first direction. This interference fit between the contact 401 and the groove wall of the mounting groove 403 in the first direction reduces the wobble of the button 402 in the first direction and also helps to achieve waterproofing, preventing external liquids from entering the interior of the electronic device. For example, at least one of the two limiting legs 412 has a contact 401 mounted on its second leg 415; the contact 401 on the second leg 415 is clamped between two opposing groove walls of the mounting groove 403 in the first direction, thus the interference fit between the second contact 401 and the two opposing groove walls of the mounting groove 403 in the first direction reduces the wobble of the button 402 in the first direction and also helps to reduce the wobble of the button 402 in the length direction of the electronic device. The contact 401 on the second leg 415 can be in the form of a sealing ring, which is fitted onto the second leg 415. For example, the sealing ring can be an O-ring. The contact 401 is elastic, which ensures the effectiveness of the contact 401's function, thus preventing excessive wobble of the button 402 in the first direction during long-term use. To prevent the contact 401 from shifting along the length of the second leg 415, an annular groove can be formed on the second leg 415, confining the contact 401 within the annular groove.

[0112] It should be noted that in some other possible embodiments, contact elements 401 may also be installed on both the first sub-leg 414 and the second sub-leg 415 of the limiting leg 412, which can further reduce the wobble of the button 402 in the first direction. In addition, the contact element 401 on the second sub-leg 415 may also be formed on the second sub-leg 415 by means of LIM (Liquid Injection Molding).

[0113] Figure 11 This is a schematic diagram of the third type of button structure provided in the embodiments of this application. See also... Figure 11As shown, a contact 401 is mounted on the first housing 301. The contact 401 on the first housing 301 is located in the mounting groove 403 and abuts against the other end of the second leg 415 in the length direction. This can also reduce the wobble of the button 402 in the first direction to a certain extent. For example, the contact 401 on the first housing 301 can be in the form of a sealing ring. Alternatively, the contact 401 can be formed on the first housing 301 by LIM (Liquid Injection Molding). The contact 401 is fixedly connected to the first housing 301, so that the contact 401 and the second leg 415 can squeeze against each other to generate friction, thereby reducing the wobble of the button 402 in the first direction to a certain extent, and also reducing the wobble of the button 402 electronic device in the length direction.

[0114] It should be noted that the contact element 401 can be disposed on at least one of the first leg 414, the second leg 415, and the first housing 301. For example, the contact element 401 can be fixed on the first leg 414, the second leg 415, and the first housing 301; the contact element 401 can be fixed on the first leg 414 and the first housing 301; or the contact element 401 can be fixed on the second leg 415 and the first housing 301. The specific determination can be made according to the actual situation.

[0115] Figure 12 This is a schematic diagram of the fourth type of button structure provided in the embodiments of this application. See also... Figure 12 As shown, the first bracket 405 also includes an anti-sway post 426, which is fixedly connected to the bracket body 411. The anti-sway post 426 is located on one side of the midpoint of the bracket body 411 along its length. A contact element 401 is sleeved on the anti-sway post 426, and the contact element 401 on the anti-sway post 426 has an interference fit with the groove wall of the mounting groove 403 in the first direction. After the anti-sway post 426 is fixedly connected to the bracket body 411, it can reduce the shaking of the button 402 during pressing, maintaining the accurate positioning and stable operation of the button 402. Furthermore, the contact element 401 sleeved on the anti-sway post 426 further reduces the shaking of the button 402 in the first direction. (See also...) Figure 12As shown, exemplary, the anti-sway post 426 and the support body 411 are an integral structure, which facilitates manufacturing, such as by using an integral molding process. The anti-sway post 426 is located between the two limiting legs 412, and the anti-sway post 426 is also located between the first guide rod 418 and one of the limiting legs 412. The number of anti-sway posts 426 can be one or two, and this application does not specifically limit it. The contact element 401 on the anti-sway post 426 can be in the form of a sealing ring, which is sleeved on the anti-sway post 426, such as an O-ring. The contact element 401 is elastic, which can ensure the effectiveness of the function of the contact element 401, so that the button 402 can not wobble too much in the first direction during long-term use. In order to prevent the contact element 401 from shifting along the length direction of the anti-sway post 426, an annular groove can be formed on the anti-sway post 426, so that the contact element 401 is confined in the annular groove. The length direction of the anti-sway column 426 is parallel to the length direction of the first guide rod 418.

[0116] It should be noted that in some other possible embodiments, the contact 401 on the anti-sway column 426 can also be formed on the second leg 415 by LIM (Liquid Injection Molding). Additionally, when the first bracket 405 also includes the anti-sway column 426, the contact 401 can be disposed on at least one of the first leg 414, the second leg 415, the first housing 301, and the anti-sway column 426; for example, the first leg 414, the second leg 415, the first housing 301, and the anti-sway column 426 can all have contact 401 disposed on them.

[0117] Figure 13 This is a schematic diagram of the fifth type of button structure provided in the embodiments of this application. See also... Figure 13 As shown, the button structure includes a power fingerprint module 408, which integrates power switch and fingerprint unlocking functions. Figure 8 The fingerprint module 408 and power module 419 are separate units. See also Figure 13As shown, the power fingerprint module 408 is mounted on the button 402. The power fingerprint module 408 includes a first circuit board 428 and a touch switch 421. The touch switch 421 is mounted on the first circuit board 428. A second guide rod 429 is mounted on the bottom of the mounting slot 403. The second guide rod 429 can trigger the touch switch 421. By integrating the power switch and fingerprint unlocking functions into the power fingerprint module 408, assembly costs can be saved. For example, the touch switch 421 can be a dome switch, and the keycap 404 can be a fingerprint chip, such as a capacitive fingerprint recognition chip. The fingerprint chip is electrically connected to the first circuit board 428. In this way, the fingerprint chip and the power fingerprint module 408 can work together to realize fingerprint recognition, thereby facilitating the fingerprint unlocking function of electronic devices. When the button 402 is pressed, the touch switch 421 is triggered by the second guide rod 429, thereby realizing the power on / off function of the electronic device. Of course, in some possible cases, it can also realize functions such as restarting, fingerprint unlocking, and serving as a shortcut key to launch applications such as voice assistants, and screen capture. The keycap 404 can be glued and fixed to the first bracket 405.

[0118] See Figure 13 As shown, the first bracket 405 includes a bracket body 411 and a limiting leg 412. The button structure also includes an anti-detachment component 413. The limiting leg 412 includes a first sub-leg 414 and a second sub-leg 415. The specific structure and connection relationships of the bracket body 411, limiting leg 412, anti-detachment component 413, first sub-leg 414, and second sub-leg 415 are the same as in the previous example and can be found in [reference needed]. Figure 8 The relevant descriptions in the text will not be repeated. It should be noted that... Figure 13 The two second legs 415 are connected to the same first leg 414.

[0119] For example, see Figure 13 As shown, the other end of the second leg 415 in the length direction is connected to the bracket body 411, so that the second leg 415, the first leg 414 and the bracket body 411 form a closed loop, which makes the receiving cavity 416 form a through hole structure 417, and the anti-detachment member 413 is inserted into the through structure on the first bracket 405 to prevent the button 402 from being detached from the mounting groove 403.

[0120] See Figure 13As shown, the first bracket 405 also includes an anti-sway post 426, which is fixedly connected to the bracket body 411. The anti-sway post 426 is located on one side of the midpoint of the bracket body 411 along its length. A contact element 401 is sleeved on the anti-sway post 426, and the contact element 401 on the anti-sway post 426 has an interference fit with the groove wall of the mounting groove 403 in the first direction. After the anti-sway post 426 is fixedly connected to the bracket body 411, it can reduce the shaking of the button 402 during pressing, maintaining the accurate positioning and stable operation of the button 402. Furthermore, the contact element 401 sleeved on the anti-sway post 426 further reduces the shaking of the button 402 in the first direction. (See also...) Figure 13 As shown, exemplarily, the anti-sway post 426 and the support body 411 are an integral structure, which facilitates manufacturing, such as by using an integral molding process. The anti-sway post 426 is located at one end of the length direction of the support body 411. The number of anti-sway posts 426 can be one or two, and this application does not specifically limit the number. The contact element 401 on the anti-sway post 426 can be in the form of a sealing ring, which is sleeved on the anti-sway post 426, such as an O-ring. The contact element 401 is elastic, which can ensure the effectiveness of the function of the contact element 401, so that the button 402 can not wobble too much in the first direction during long-term use. In order to prevent the contact element 401 from shifting along the length direction of the anti-sway post 426, an annular groove can be formed on the anti-sway post 426, so that the contact element 401 is confined in the annular groove. The length direction of the anti-sway post 426 is parallel to the length direction of the first guide rod 418. It should be noted that in some other possible embodiments, the contact 401 on the anti-sway column 426 can also be formed on the second leg 415 by LIM (Liquid Injection Molding). Additionally, when the first bracket 405 also includes the anti-sway column 426, the contact 401 can be disposed on at least one of the first leg 414, the second leg 415, the first housing 301, and the anti-sway column 426; for example, the first leg 414, the second leg 415, the first housing 301, and the anti-sway column 426 can all have contact 401 disposed on them.

[0121] Figure 14 This is a schematic diagram of the sixth type of button structure provided in the embodiments of this application; see also Figure 14As shown, the first guide rod 418 and the first bracket 405 are an integral structure. In this way, the first guide rod 418 can also perform the function of anti-shake, and it is also convenient to manufacture the first bracket 405 and the first guide rod 418, and can also save assembly costs. The other end of the first guide rod 418 is provided with a first elastic element 434 between it and the touch switch 421. The other end of the first guide rod 418 and the touch switch 421 are respectively in contact with the first elastic element 434. The first elastic element 434 helps to reduce the shaking of the button 402 in the first direction, and can also reduce the possibility of the end of the first guide rod 418 damaging the touch switch 421. For example, the touch switch 421 is in contact with the first elastic element 434, but the touch switch 421 is not under force, or the first elastic element 434 is insufficient to trigger the touch switch 421. The touch switch 421 is only triggered when the button 402 is pressed. The first elastic element 434 can be bonded and fixed to the other end of the first guide rod 418, while the first elastic element 434 and the touch switch 421 are separately disposed, that is, they are not fixedly connected. The first elastic element 434 can be foam, silicone, or rubber, or other elastic materials.

[0122] It should be noted that in some other possible implementations, for Figures 8 to 12 In the button structure, the first guide rod 418 can also be integrated with the first bracket 405. In other embodiments, the first elastic element 434 can also be bonded and fixed to the touch switch 421, while the other end of the first guide rod 418 is separately disposed from the first elastic element 434, that is, the two are not fixedly connected.

[0123] Figure 15 This is a schematic diagram of the seventh type of button structure provided in the embodiments of this application. Figure 16 This is a schematic diagram of the eighth type of button structure provided in the embodiments of this application; see also Figure 15 and Figure 16As shown, a contact 401 is mounted on the first circumferential surface 407. The contact 401 on the first circumferential surface 407 is annular, and there is an interference fit between the contact 401 on the first circumferential surface 407 and the wall of the mounting groove 403 in the first direction. This arrangement of the contact 401 around the first circumferential surface 407, utilizing the interference fit between the contact 401 and the wall of the mounting groove 403, reduces the wobble of the keycap 404 in the first direction, thereby reducing the wobble of the key 402 in the first direction, and also helps to achieve the waterproof and dustproof function of the key structure. Furthermore, because the contact 401 is arranged around the first circumferential surface 407, this reduces the wobble of the keycap 404 in another direction perpendicular to the first direction, that is, reduces the wobble of the keycap 404 along the length of the electronic device. For example, the contact 401 can be made using 3D printing or formed on the first peripheral surface 407 of the keycap 404 using LIM molding; the first peripheral surface 407 has a first annular groove 430 (see Figure 17 As shown in the diagram, the first groove 430 extends along the length of the first circumferential surface 407, making the first groove 430 annular. The annular contact 401 is installed in the first groove 430, thus preventing the contact 401 from shifting along the width direction of the electronic device. A portion of the structure of the contact 401 on the first circumferential surface 407 is confined within the first groove 430, while another portion of the structure of the contact 401 on the first circumferential surface 407 protrudes from the edge of the groove 430, thereby achieving waterproofing and reducing the wobbling of the keycap 404.

[0124] It should be noted that, for Figures 8 to 14 In the button structure, a contact 401 can also be installed on the first circumferential surface 407 of the keycap 404. Additionally, in some other possible embodiments, when the contact 401 is not installed on the first circumferential surface 407, a sealing structure is provided on the first circumferential surface 407 and / or the groove wall of the mounting groove 403 opposite to the first circumferential surface 407; when the contact 401 is installed on the first circumferential surface 407, a sealing structure can be provided only on the first circumferential surface 407; the sealing structure is a three-dimensional spiral groove or multiple annular grooves spaced apart along the width direction of the electronic device. This sealing structure achieves a seal between the first circumferential surface 407 and the groove wall of the mounting groove 403 opposite to the first circumferential surface 407, thus achieving waterproofing.

[0125] Figure 17 This is a process flow diagram of the processing of the keycap 404 with misalignment in this embodiment of the application; during the manufacturing of the key 402, tolerances may occur, so after the key 402 is assembled on the first housing 301, it can be observed from the outer surface of the electronic device that there is a misalignment in the first direction between the keycap 404 and the mounting groove 403 (e.g. Figure 17As shown in Figure (a), this will exacerbate the wobble of key 402. Replacing the entire key 402 or keycap 404 would increase material costs. Therefore, the key 402 with deviation can be corrected. After determining the offset of keycap 404 relative to the first housing 301 in the first direction, an additional layer 431 (such as...) can be added to the first groove 430 on the first circumferential surface 407. Figure 17 As shown in Figure (b), the additional layer 431 is made using a 3D printing process. This additive manufacturing of the additional layer 431 using 3D printing eliminates the need to replace the keycap 404 with misalignment issues, thus reducing material costs. The contact 401 is then installed in the first recess 430 (as shown in Figure (b)). Figure 17 (as shown in Figure (c)); Figure 17 Figure (d) is a schematic diagram of the modified key structure. Exemplarily, this application also provides a method for correcting the offset of a key 402, the method comprising: determining the offset of the keycap 404 relative to the first housing 301 in a first direction; adding an additional layer 431 to a first groove 430 on the first circumferential surface 407, the thickness of the additional layer 431 being equal to the offset; and installing a contact 401 in the first groove 430.

[0126] Figure 18 This is a schematic diagram of the ninth type of button structure provided in the embodiments of this application. See also... Figure 18 As shown, in some embodiments, a second elastic element 432 is provided between the first bracket 405 and the bottom of the mounting groove 403, and the bottom of the first bracket 405 and the mounting groove 403 respectively contact the second elastic element 432; in this way, the second elastic element 432 can reduce the shaking of the key 402 in the first direction to a certain extent. For example, the second elastic element 432 can be foam, silicone or rubber, or other elastic materials. After pressing the keycap 404, the second elastic element 432 is compressed and deformed to make contact between the touch switch 421 on the power fingerprint module 408 and the second guide rod 429, thereby triggering the touch switch 421; and when the pressing force is removed, the second elastic element 432 causes the keycap 404 to return to its initial position.

[0127] Figure 19 This is a schematic diagram of the tenth type of button structure provided in the embodiments of this application. See also... Figure 19As shown, a third elastic element 433 is provided between the second guide rod 429 and the bottom of the mounting groove 403. The second guide rod 429 and the bottom of the mounting groove 403 are in contact with the third elastic element 433, which helps to reduce the wobbling of the button 402 in the first direction. For example, the third elastic element 433 can be foam, silicone, or rubber, or other elastic materials. The end face of the second guide rod 429 is in contact with the touch switch 421 on the power fingerprint module 408, but the touch switch 421 is not under force, or the first elastic element 434 is insufficient to trigger the touch switch 421. The touch switch 421 is only triggered when the button 402 is pressed.

[0128] It should be noted that, for Figure 18 and Figure 19 The button structure in the middle, the contact 401 can be disposed on at least one of the keycap 404, the first leg 414, the second leg 415 and the first housing 301; Figure 18 and Figure 19 Contact 401 is not shown in the diagram.

[0129] In the description of this application, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A button structure for use in electronic devices, characterized in that, include: Contact elements; A first housing, the first housing having a mounting groove; A button, wherein the button is installed in the mounting slot; Wherein, the button is equipped with the contact element, and the contact element on the button contacts the first housing to limit the button in a first direction; or / and, the first housing is equipped with the contact element, and the contact element on the first housing contacts the button to limit the button in a first direction; The first direction is parallel to the thickness direction of the electronic device.

2. The button structure as described in claim 1, characterized in that, The key includes a keycap and a first bracket, and the keycap is fixedly connected to the first bracket. The keycap includes a touch surface and a first peripheral surface, the touch surface being connected to the first peripheral surface, and the first peripheral surface being disposed opposite to the groove wall of the mounting groove.

3. The button structure as described in claim 2, characterized in that, The contact element is mounted on the first circumferential surface. The contact element on the first circumferential surface is annular, and the contact element on the first circumferential surface has an interference fit with the groove wall of the mounting groove in the first direction.

4. The button structure as described in claim 3, characterized in that, The button further includes an additional layer, and the first peripheral surface has a first groove; The first groove extends along the length of the first circumferential surface, so that the first groove is annular; The additional layer is fixed to a portion of the bottom surface of the first groove; The contact element on the first circumferential surface is installed in the first groove.

5. The button structure as described in claim 4, characterized in that, The additional layer is made using 3D printing technology.

6. The button structure as described in any one of claims 2-5, characterized in that, The first bracket includes a bracket body and a limiting leg, and the keycap is fixedly connected to the bracket body; The button structure also includes a release detachment component, which is fixedly connected to the first housing and is located in the mounting groove. The anti-detachment component can contact the limiting leg so that the button is limited to the mounting groove.

7. The button structure as described in claim 6, characterized in that, The first support also includes an anti-sway column, which is fixedly connected to the support body and is located on one side of the midpoint of the length direction of the support body; The anti-sway post is fitted with the contact element, and the contact element on the anti-sway post is interference-fitted with the wall of the mounting groove in the first direction.

8. The button structure as described in claim 6, characterized in that, The limiting leg includes a first leg and a second leg. One end of the first leg along its length is fixedly connected to the main body of the bracket, and the other end of the first leg along its length is connected to one end of the second leg along its length. The length directions of the first leg, the second leg, and the first leg are perpendicular to each other. A receiving cavity is formed between the second leg and the bracket body. The anti-detachment member is inserted into the receiving cavity and can contact the second leg so that the button is confined in the mounting groove.

9. The button structure as described in claim 8, characterized in that, The first leg is equipped with the contact element, and the contact element on the first leg is interference-fitted with the groove wall of the mounting groove in the first direction; Or / and, a contact is mounted on the second leg, and the contact on the second leg is interference-fitted with the wall of the mounting groove in the first direction.

10. The button structure as described in claim 8, characterized in that, The first housing is equipped with the contact member, which is located in the mounting groove and abuts against the other end of the second leg along its length.

11. The button structure as described in any one of claims 2-5, characterized in that, The button also includes a first guide rod, one end of which is fixedly connected to the first bracket; The button structure also includes a power module, which includes a power circuit board and a touch switch. The touch switch is mounted on the power circuit board, and the first guide rod can trigger the touch switch.

12. The button structure as described in claim 11, characterized in that, The first guide rod and the first bracket are an integral structure; A first elastic element is provided between the other end of the first guide rod and the touch switch, and the other end of the first guide rod and the touch switch are respectively in contact with the first elastic element.

13. The button structure as described in claim 11, characterized in that, The button structure also includes a fingerprint module, which is installed on the button. The fingerprint module includes a fingerprint circuit board, which is fixedly connected to the button.

14. The button structure as described in any one of claims 2-5, characterized in that, The button structure also includes a power fingerprint module, which is installed on the button. The power fingerprint module includes a first circuit board and a touch switch. The touch switch is installed on the first circuit board. A second guide rod is installed on the bottom of the mounting slot, and the second guide rod can trigger the touch switch. A second elastic element is provided between the first bracket and the bottom of the mounting groove, and the first bracket and the bottom of the mounting groove are respectively in contact with the second elastic element; or, a third elastic element is provided between the second guide rod and the bottom of the mounting groove, and the second guide rod and the bottom of the mounting groove are respectively in contact with the third elastic element.

15. An electronic device, characterized in that, Includes the button structure as described in any one of claims 1-14.

16. The electronic device as claimed in claim 15, characterized in that, It also includes a second housing, a rotating shaft mechanism, and a flexible display screen; the first housing and the second housing are respectively connected to the rotating shaft mechanism, and the first housing and the second housing can rotate relative to each other through the rotating shaft mechanism; the flexible display screen is respectively connected to the first housing and the second housing.

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