CN116313598A

CN116313598A - Key assembly and electronic equipment

Info

Publication number: CN116313598A
Application number: CN202310251448.XA
Authority: CN
Inventors: 尹超
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-06-23
Also published as: CN115020137A; CN115020137B

Abstract

The application provides a key assembly and electronic equipment. The key assembly includes: casing, button module and drive unit. The outer surface of the shell is provided with a mounting groove which is provided with an opening and a groove bottom wall opposite to the opening, and the arrangement direction of the opening and the groove bottom wall is a first direction; the key module comprises keys, the keys are arranged in the mounting grooves and can move in a first direction relative to the shell; the driving component is used for normally driving the key to move along a first direction and away from the bottom wall of the groove, and the key can move relative to the shell in a second direction perpendicular to the first direction so as to adjust the acting force applied by the driving component to the key along the first direction. According to the key assembly of the first aspect of the embodiment of the application, a user can adjust the pressing handfeel of the key by driving the key to move to different positions along the second direction according to the actual needs of the user, so that the use needs of different users are met.

Description

Key assembly and electronic equipment

The application is a divisional application of China patent application of 2021, 12 months and 14 days, which is submitted by the national intellectual property agency, the application number is 202111524640.9, and the invention name is a key assembly and electronic equipment.

Technical Field

The application relates to the technical field of electronic equipment, in particular to a key assembly and electronic equipment.

Background

Currently, electronic devices such as mobile phones and tablet computers are generally provided with key modules such as a power key module and a volume key module, so as to facilitate the on/off or volume adjustment of the electronic devices.

In the prior art, the assembly between the key module and the shell is limited, and when a user triggers the key module, the pressing hand feeling of the key module is the same. That is, the key module can be triggered by applying the same force between different users. However, different users have different requirements on the pressing hand feeling and the pressing experience of the key module, some users hope that the key module can be hard, so that the users can trigger the key module with larger force, and some users hope that the keys can be soft, so that the users can trigger the key module with smaller force.

Therefore, how to adjust the pressing hand feeling of the key module in the electronic device according to the user's requirement is a technical problem to be solved currently.

Disclosure of Invention

The embodiment of the application provides a key assembly and electronic equipment, can utilize the cooperation of drive part and button to adjust the drive part to the size of the effort along the first direction that the button applyed to satisfy the pressing feel of different users to the button module.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, the present application provides a key assembly comprising: casing, button module and drive unit. The outer surface of the shell is provided with a mounting groove which is provided with an opening and a groove bottom wall opposite to the opening, and the arrangement direction of the opening and the groove bottom wall is a first direction; the key module comprises keys, the keys are arranged in the mounting grooves and can move in a first direction relative to the shell; the driving component is used for normally driving the key to move along a first direction and away from the bottom wall of the groove, and the key can move relative to the shell in a second direction perpendicular to the first direction so as to adjust the acting force applied by the driving component to the key along the first direction. The driving component comprises a first magnet and a second magnet, the first magnet is arranged on the key, the second magnet is arranged on the bottom wall of the groove, the magnetizing direction of the second magnet and the magnetizing direction of the first magnet are parallel to each other, and the magnetizing direction of the second magnet is opposite to the magnetizing direction of the first magnet; or the driving part is a spring, and the spring is positioned between the bottom wall of the groove and the key; one end of the spring is fixed on the bottom wall of the groove, the other end of the spring is abutted with one end surface of the key, which is adjacent to the bottom wall of the groove, or one end of the spring is fixed on one end surface of the key, which is adjacent to the bottom wall of the groove, and the other end of the spring is abutted with the bottom wall of the groove. According to the key assembly provided by the embodiment of the first aspect of the application, the driving component is arranged, and the key is matched with the driving component, so that when a user drives the key to move to different positions along the second direction, the magnitude of the acting force applied to the key by the driving component along the first direction can be adjusted. The user can adjust the pressing handfeel of the key by driving the key to move to different positions along the second direction according to the actual needs of the user, and the use requirements of different users are met. The structure is simpler, and makes things convenient for user operation more, need not to tear open the purpose that can realize adjusting, and user's experience is felt better. Through making drive unit include first magnet and second magnet to utilize first magnet and second magnet to correspond the magnetic repulsion of overlap region department and drive the button and reset towards the direction of keeping away from the groove diapire, perhaps, adopt the spring to drive the button and reset towards the direction of keeping away from the groove diapire, structurally simpler, and be convenient for assemble, with low costs.

In some embodiments of the first aspect of the present application, the driving part comprises: the first magnet and the second magnet define a plane perpendicular to the first direction as a reference plane, and the orthographic projection of the first magnet on the reference plane and the orthographic projection of the second magnet on the reference plane overlap to form an overlapping area. In this way, the driving part comprises the first magnet and the second magnet, and the first magnet and the second magnet are utilized to drive the key to reset towards the direction away from the bottom wall of the groove by the magnetic repulsive force corresponding to the overlapped area, so that the structure is simpler, the assembly is convenient, and the cost is low.

In some embodiments of the first aspect of the present application, the key is moved in a second direction relative to the housing for adjusting the size of the area of the overlap region. In the embodiment of the application, through utilizing the removal of button relative casing on the second direction, adjust the size of overlap area's area, and then through the area size of overlap area realization to the regulation of the effort size that drive part applyed the button, simple structure, the operation of being convenient for can improve user's use experience.

In some embodiments of the present application, the first magnet includes a plurality of first magnet portions arranged in the second direction, the plurality of first magnet portions being made of different materials, respectively, such that the plurality of first magnet portions have different magnetic field strengths; the key is moved in a second direction relative to the housing such that the overlapping areas correspond to different first magnet portions. Therefore, the aim of adjusting the magnetic repulsive force between the first magnet and the second magnet is fulfilled by selecting different magnetic repulsive forces formed by the first magnet part and the second magnet with different materials.

In some examples, the plurality of first magnet portions are identical in shape and size. In particular, the second magnet may be the same shape and size as the first magnet portion. This arrangement is advantageous in improving the reliability of the fit of the second magnet with the first magnet portion.

In some examples, the material of the second magnet may be the same as the material of one of the first magnet portions. Of course, the material of the second magnet may also be different from that of each of the first magnet portions.

In some embodiments of the first aspect of the present application, the second magnet includes a plurality of second magnet portions arranged in the second direction, the plurality of second magnet portions being respectively made of different materials such that the plurality of second magnet portions have different magnetic field strengths; the key is moved in a second direction relative to the housing such that the overlap region corresponds to a different second magnet portion. Therefore, the aim of adjusting the magnetic repulsive force between the second magnet and the first magnet is fulfilled by selecting the second magnet part with different materials to form different magnetic repulsive forces with the first magnet.

In some examples, the shape and size of the plurality of second magnet portions are the same. Specifically, the first magnet may be the same shape and size as the second magnet portion. This arrangement is advantageous in improving the reliability of the fit of the first magnet to the second magnet portion.

In some examples, the first magnet may be the same material as one of the second magnet portions. Of course, the material of the first magnet may be different from that of each of the second magnet portions.

In some embodiments of the first aspect of the present application, in the second direction, the first magnet and the second magnet are not equally spaced; the keys are moved in a second direction relative to the housing such that the overlapping areas correspond to different sized spaces. The user can adjust the size of the magnetic repulsive force between the first magnet and the second magnet corresponding to the overlapping region by driving the movement of the key in the second direction relative to the housing such that the overlapping region is located at a different size of the spacing between the first magnet and the second magnet.

In some embodiments of the first aspect of the present application, the first magnet is formed in a stepped shape. Therefore, in the process that the user drives the key to move in the second direction relative to the shell, the step-shaped first magnet can be used for adjusting the distance between the first magnet and the second magnet.

Optionally, in the process that the key moves in the second direction relative to the housing, the orthographic projection of the second magnet on the reference plane is always located in the outline of the orthographic projection of the first magnet on the reference plane, so that the area size of the overlapped area is kept unchanged all the time, the influence of the size of the overlapped area on the magnetic repulsive force between the first magnet and the second magnet can be ignored, the magnetic repulsive force between the first magnet and the second magnet can be regulated by using a single variable or fewer variables, the assembly operation of the first magnet and the second magnet can be simplified, the assembly problem caused by other variables is not needed to be considered, and the reliability of the operation of the driving component can be improved.

In some embodiments of the first aspect of the present application, the second magnet is formed in a stepped shape. Therefore, in the process that the user drives the key to move in the second direction relative to the shell, the step-shaped second magnet can be used for adjusting the distance between the first magnet and the second magnet.

Optionally, in the process that the key moves in the second direction relative to the housing, the front projection of the first magnet on the reference plane is always located in the outline of the front projection of the second magnet on the reference plane, so that the area size of the overlapping area is always kept unchanged, influence of the size of the overlapping area on magnetic repulsive force between the first magnet and the second magnet can be ignored, and the magnetic repulsive force between the first magnet and the second magnet can be regulated by using a single variable or fewer variables, so that assembly operation of the first magnet and the second magnet is simplified, assembly problems caused by other variables are not considered, and meanwhile, the reliability of the operation of the driving component is improved.

In some embodiments of the first aspect of the present application, the first magnet and the second magnet are each formed in a stepped shape. Therefore, in the process that the user drives the key to move in the second direction relative to the shell, the step-shaped first magnet and the step-shaped second magnet can be used for adjusting the distance between the first magnet and the second magnet.

In some embodiments of the first aspect of the present application, the first magnet is not equally thick in the second direction, and the key is moved in the second direction relative to the housing such that the overlapping area corresponds to a different thickness area of the first magnet. The user can adjust the size of the magnetic repulsive force between the first magnet and the second magnet corresponding to the overlapping region by driving the key to move in the second direction relative to the housing so that the overlapping region is located at the region of different thickness of the first magnet.

In some embodiments of the first aspect of the present application, the orthographic projection of the first magnet is trapezoidal in a plane parallel to the first direction and parallel to the second direction, such that the first magnet is not equally thick in the second direction. The arrangement is simple in structure and convenient to process and manufacture, and the thickness of the first magnet is gradually changed (gradually increased or gradually reduced) along the second direction, so that when the user drives the key to move in the second direction relative to the shell, the gradual adjustment of the pressing hand feeling of the key is facilitated.

The first magnet may be formed in a right trapezoid shape, for example. The arrangement is simple in structure and convenient to process and manufacture, and the thickness of the first magnet is gradually changed (gradually increased or gradually reduced) along the second direction, so that when the user drives the key to move in the second direction relative to the shell, the gradual adjustment of the pressing hand feeling of the key is facilitated.

In some embodiments of the first aspect of the present application, a surface of the first magnet on a side thereof remote from the second magnet is formed as a stepped surface such that the first magnet is not equally thick in the second direction.

In some embodiments of the first aspect of the present application, the second magnet is not equally thick in the second direction, and the key is moved in the second direction relative to the housing such that the overlapping area corresponds to a different thickness area of the second magnet. The user can adjust the size of the magnetic repulsive force between the first magnet and the second magnet corresponding to the overlapping region by driving the key to move in the second direction relative to the housing so that the overlapping region is located at the region of different thickness of the second magnet.

In some embodiments of the first aspect of the present application, the orthographic projection of the second magnet is trapezoidal in a plane parallel to the first direction and parallel to the second direction, such that the second magnet is not equally thick in the second direction. The arrangement is simple in structure and convenient to process and manufacture, and the thickness of the second magnet is gradually changed (gradually increased or gradually reduced) along the second direction, so that when the user drives the key to move in the second direction relative to the shell, the gradual adjustment of the pressing hand feeling of the key is facilitated.

For example, the second magnet may be formed in a right trapezoid shape such that the second magnet is not equally thick in the second direction; the arrangement is simple in structure and convenient to process and manufacture, and the thickness of the second magnet is gradually changed (gradually increased or gradually reduced) along the second direction, so that when the user drives the key to move in the second direction relative to the shell, the gradual adjustment of the pressing hand feeling of the key is facilitated.

In some embodiments of the first aspect of the present application, a side surface of the second magnet remote from the first magnet is formed as a stepped surface such that the second magnet is not equally thick in the second direction.

In some embodiments provided in the first aspect of the present application, the thickness of the first magnet is equal everywhere. The first magnet is simple in structure and convenient to process and manufacture. In addition, in the process that the key moves along the second direction relative to the shell, the influence of the thickness change of the first magnet on the magnetic repulsive force between the first magnet and the second magnet can be ignored, the single variable or less variable is used for adjusting the magnetic repulsive force between the first magnet and the second magnet, the assembly operation of the first magnet and the second magnet is simplified, the assembly problem caused by other variables is not needed to be considered, and meanwhile, the reliability of the operation of the driving part is improved.

In some embodiments provided in the first aspect of the present application, the thickness of the second magnet is equal everywhere. The second magnet is simple in structure and convenient to process and manufacture. In addition, in the process that the key moves along the second direction relative to the shell, the influence of the thickness change of the second magnet on the magnetic repulsive force between the first magnet and the second magnet can be ignored, the single variable or less variable is used for adjusting the magnetic repulsive force between the first magnet and the second magnet, the assembly operation of the first magnet and the second magnet is simplified, the assembly problem caused by other variables is not needed to be considered, and meanwhile, the reliability of the operation of the driving part is improved.

In some embodiments provided in the first aspect of the present application, the thicknesses of the first magnets are equal everywhere, and the thicknesses of the second magnets are equal everywhere. In the embodiment of the application, through making the thickness everywhere of first magnet equal, the thickness everywhere of second magnet equals, like this at the in-process that the relative casing of button moved along the second direction, can neglect the influence of the magnetic repulsion between first magnet and the second magnet because of the thickness variation of first magnet and second magnet, be favorable to utilizing single variable or less variable to adjust the magnetic repulsion between first magnet and the second magnet, be favorable to simplifying the assembly operation of first magnet and second magnet, need not to consider the assembly problem that other variables brought, be favorable to improving the reliability of drive part work simultaneously.

In some embodiments provided in the first direction of the present application, the thickness of the first magnet and the thickness of the second magnet may be equal. In other examples, the thickness of the first magnet and the thickness of the second magnet may also be unequal.

In some embodiments provided in the first direction of the present application, the shapes and the sizes of the second magnet and the first magnet are the same, so that only one specification of magnet needs to be processed, two kinds of magnets do not need to be processed respectively, the processing technology can be simplified, and the production cost can be reduced.

In some embodiments provided in the first direction of the present application, the dimensions of the gap between the first magnet and the second magnet are everywhere equal. Therefore, the compactness of the structure of the driving part can be ensured, in addition, in the process that the key moves along the second direction relative to the shell, the influence of the space size change on the size of the magnetic repulsive force between the first magnet and the second magnet can be ignored, the single variable or fewer variables are used for adjusting the magnetic repulsive force between the first magnet and the second magnet, the assembly operation of the first magnet and the second magnet can be simplified, the assembly problem caused by other variables is not needed to be considered, and meanwhile, the working reliability of the driving part is improved.

In some embodiments provided in the first aspect of the present application, the housing has a receiving hole at the bottom wall of the slot, and the second magnet is embedded in the receiving hole.

In some embodiments provided in the first aspect of the present application, the key module further includes a fixing base, the fixing base is installed in the installation groove, the key is fixed on the fixing base, the fixing base and the housing are relatively fixed in the second direction, the fixing base and the key move synchronously along the first direction, and the key is movable in the second direction relative to the fixing base. Therefore, the fixed base is arranged, so that the key can be conveniently fixed in the mounting groove by using the fixed base, and the key can be moved in the first direction and the second direction relative to the shell.

In some embodiments provided in the first aspect of the present application, the key includes a pressing plate opposite to the bottom wall of the groove and located on a side of the fixed base facing away from the bottom wall of the groove. The pressing plate is located on one side, away from the bottom wall of the groove, of the fixed base, so that a user can conveniently touch the pressing plate to trigger the keys.

In some embodiments provided in the first aspect of the present application, the fixing base includes a fixing plate, the fixing plate is located between the pressing plate and the bottom wall of the groove, a clamping hole is formed in the fixing plate, the key includes a clamping portion, the clamping portion is arranged on the surface of the pressing plate facing the bottom wall of the groove, and the clamping portion is in clamping fit with the clamping hole. In this way, the connection of the key with the fixed base can be achieved.

Specifically, the dimension of the card Kong Yandi in the two directions is greater than the dimension of the portion of the engaging portion located in the card hole in the second direction. Therefore, the user can conveniently drive the key to move along the second direction relative to the fixed base, and the problem that the fixed base is limited to be unable to move because the size of the clamping hole in the second direction is the same as the size of the part of the clamping part, which is positioned in the clamping hole, in the second direction is prevented.

In some embodiments provided in the first aspect of the present application, the circumferentially extending track of the fixing plate is identical to the circumferentially extending track of the mounting groove, such that the fixing plate and the mounting groove may be adapted. Therefore, when the user drives the key to move along the second direction relative to the shell, the fixing plate can be kept relatively fixed with the shell in the second direction under the limit of the mounting groove, so that the fixing base and the whole shell are kept relatively fixed in the second direction.

In some embodiments provided in the first aspect of the present application, the clamping portion and the pressing plate may be an integrally formed piece, so that not only the structural strength of the clamping portion and the pressing plate may be improved, but also the processing technology of the key may be simplified, and the production cost may be reduced.

In some embodiments provided in the first aspect of the present application, the number of the clamping portions is two, and the two clamping portions are opposite and spaced apart in the second direction. The arrangement is beneficial to fully utilizing the space in the length direction of the pressing plate.

In some embodiments provided in the first aspect of the present application, the clamping portion includes a first section and a second section; one end of the first section is connected with the surface of the pressing plate, which faces the bottom wall of the groove, the first section penetrates through the clamping hole, the other end of the first section is positioned on one side of the fixing plate, which is adjacent to the bottom wall of the groove, the second section is connected with the other end of the first section, and the second section extends along the second direction and is opposite to the pressing plate so as to define a clamping space. So that a portion of the fixing plate can be located in the receiving space.

In some embodiments provided in the first aspect of the present application, the first magnet is disposed at an end of the clamping portion adjacent to the bottom wall of the slot. Alternatively, at least part of the clamping portion is configured as the first magnet. In some examples, the first magnet is disposed on a surface of the second segment that faces the bottom wall of the slot. In other examples, the entire second section defines the first magnet.

In some embodiments provided in the first direction of the present application, the key module further includes a damping structure for providing a damping force for movement of the key in the second direction relative to the fixed base. The arrangement is beneficial to improving the working reliability of the key module, and the problem of misoperation caused by the fact that the key is contacted with other structures independent of the electronic equipment to cause the movement of the key along the second direction when the user does not drive the key to move along the second direction is solved.

In some embodiments provided in the first aspect of the present application, the opposite wall surfaces of the engaging space along the first direction define the damping structure, so that a portion of the fixing plate is clamped by the opposite wall surfaces of the engaging space along the first direction. Therefore, the structure is simple and reliable.

In some embodiments provided in the first aspect of the present application, the damping structure may be defined by opposite edges of the clamping hole along a third direction, that is, a portion of the clamping portion located in the clamping hole may be clamped by opposite edges of the clamping hole along the third direction, so as to provide a damping force for movement of the key relative to the fixed base in the second direction, where the third direction is perpendicular to both the first direction and the second direction.

In some embodiments provided in the first aspect of the present application, the damping structure may further be damping particles, and the damping particles may be filled between the opposite wall surfaces of the clamping space and the fixing plate, so as to provide a damping force for the movement of the key in the second direction relative to the fixing base.

In some embodiments of the first aspect of the present application, two side groove walls of the mounting groove along the second direction are respectively formed with a limiting groove, the fixing base further includes two limiting tongues, the limiting tongues are connected with the fixing plate, the two limiting tongues are opposite and spaced apart in the second direction, and the two limiting tongues are in one-to-one correspondence fit with the two limiting grooves; the size of the limit groove in the first direction is larger than that of the part of the limit tongue, which is positioned in the limit groove, in the first direction; in this way, the key and the fixed base can be moved in the first direction as a whole.

Specifically, the driving component often drives the key and the fixed base to move integrally along the first direction and in the direction away from the bottom wall of the groove until the limit tongue is abutted with the groove wall of the limit groove on one side of the limit groove away from the inside of the shell. Therefore, the key and the fixed base can be prevented from being separated from the mounting groove integrally, and the reliability of assembly is improved.

In some embodiments of the first aspect of the present application, the stop tongue and the fixing plate may be one piece. Therefore, the connection strength of the limit tongue and the fixed plate can be improved, the processing technology of the limit tongue and the fixed plate is simplified, and the production cost is reduced.

In some embodiments of the first aspect of the present application, the spacing tongue includes a connecting section and a snap tongue section. Wherein, the one end of linkage segment links to each other with the surface towards the groove diapire of fixed plate. The connecting section extends in a first direction toward a direction approaching the bottom wall of the groove. The clamping tongue section is connected with the other end of the connecting section, extends towards the direction of the inner peripheral surface of the mounting groove and extends to exceed the fixing plate so as to be clamped with the limiting groove. The device is simple in structure.

In some embodiments of the first aspect of the present application, the limit tongue comprises only a tongue section. The two clamping tongue sections are connected with two ends of the fixing plate along the second direction. The device is simple in structure.

Alternatively, the driving parts are two, and the two driving parts are arranged at intervals along the second direction. The two driving parts are in one-to-one correspondence with the two clamping parts.

In some embodiments of the first aspect of the present application, a trigger rod is disposed on a surface of the fixing plate facing the bottom wall of the groove, and an avoidance hole communicating the installation groove and the inside of the casing is formed in the casing, and the avoidance hole is located at the bottom wall of the groove and is used for avoiding the trigger rod. The key module further comprises a switch piece, wherein the switch piece can be located inside the shell and opposite to the avoidance hole, or the switch piece is located in the mounting groove.

In some embodiments of the first aspect of the present application, the key module may further not include a fixed base. And the key comprises only the pressing plate. The pressing plate is held by the edge of the opening of the mounting groove in the third direction, thereby providing a damping force for movement of the key in the second direction, while preventing disengagement of the key from the mounting groove. Opposite wall surfaces of the mounting groove in the third direction extend in directions away from each other, respectively, in a direction from the opening of the mounting groove to the groove bottom wall of the mounting groove, so that the movement of the key in the first direction can be avoided.

In order to further prevent the keys from separating from the mounting groove, two ends of the pressing plate along the third direction are respectively provided with an anti-falling block, the anti-falling blocks are positioned in the mounting groove, and in the process that the keys move along the first direction, the anti-falling blocks are spaced from the inner peripheral surface of the mounting groove, so that the anti-falling blocks are prevented from interfering the movement of the keys along the first direction.

In some embodiments of the first aspect of the present application, the drive member is a spring; one of the surfaces of the groove bottom wall and the key adjacent to one end of the groove bottom wall is formed with a slope area, and the interval between the other of the surfaces of the groove bottom wall and the key adjacent to one end of the groove bottom wall and the slope area is gradually changed in the second direction; the spring is fixed on the other of the groove bottom wall and the surface of one end of the key, which is adjacent to the groove bottom wall; the key is moved in a second direction relative to the housing such that a different portion of the ramp area in the second direction abuts the spring. That is, when one end of the spring is fixed to the bottom wall of the groove and the other end of the spring abuts against the key, the key has a slope area adjacent to one end surface of the bottom wall of the groove, and the interval between the bottom wall of the groove and the slope area is gradually changed in the second direction so that a different portion of the slope area in the second direction abuts against the spring when the key moves in the second direction relative to the housing; when one end of the spring is fixed on the key and the other end of the spring is abutted against the bottom wall of the groove, the bottom wall of the groove is provided with a bevel area, and the distance between one end surface of the key adjacent to the bottom wall of the groove (such as the surface of the second section facing the bottom wall of the groove) and the bevel area is gradually changed in the second direction, so that when the key moves in the second direction relative to the shell, a different part of the bevel area in the second direction is abutted against the spring. Therefore, the compression amount of the spring can be adjusted, and the acting force applied by the spring to the key can be further adjusted. In addition, the setting mode is simple in structure and convenient to operate, and the use experience of a user can be improved.

In some embodiments of the first aspect of the present application, a stop sleeve is provided on the other of the slot bottom wall and the surface of the key adjacent to one end of the slot bottom wall; that is, when the other end of the spring is abutted with the key, a limit sleeve is arranged on the bottom wall (22 b 2) of the groove, and when the other end of the spring is abutted with the bottom wall of the groove, a limit sleeve (66) is arranged on the surface of one end of the key, which is adjacent to the bottom wall of the groove; the limit sleeve surrounds the periphery of the spring.

In some embodiments of the first aspect of the present application, an end of the spring adjacent to the bevel area has a fixing seat, a portion of the fixing seat along the first direction is located in the limiting sleeve, and the remaining portion of the fixing seat along the first direction is located outside the limiting sleeve and abuts against the bevel area.

In a second aspect, an embodiment of the present application provides an electronic device, including a key assembly in any one of the foregoing technical solutions.

The technical effects caused by any one of the design manners in the second aspect may be referred to the technical effects caused by the different design manners in the first aspect, which are not described herein.

Drawings

Fig. 1 is a perspective view of an electronic device provided according to some embodiments of the present application;

FIG. 2 is an exploded schematic view of the electronic device shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the electronic device shown in FIG. 1, taken along line A-A;

FIG. 4 is an enlarged view of a circled portion at B in the electronic device shown in FIG. 3;

fig. 5 is an enlarged view of the electronic device shown in fig. 1, circled at C;

FIG. 6 is a schematic view of a portion of an electronic device according to further embodiments of the present application;

FIG. 7a is a schematic cross-sectional view of the electronic device shown in FIG. 6 at line D-D;

FIG. 7b is a schematic view of the projection of the first and second magnets on the reference plane in the electronic device shown in FIG. 6;

FIG. 7c is a schematic view of the electronic device shown in FIG. 6, showing the first and second magnets projected onto a reference plane, wherein the first magnet is located at a different position in the second direction from that shown in FIG. 7 b;

FIG. 8 is an exploded view of the first magnet, key and stationary base of the electronic device of FIG. 6;

FIG. 9 is a schematic cross-sectional structure of an electronic device according to further embodiments of the present application;

FIG. 10 is a schematic cross-sectional structure of an electronic device according to further embodiments of the present application;

FIG. 11 is a schematic cross-sectional structure of an electronic device according to other embodiments of the present application;

FIG. 12 is a schematic cross-sectional structure of an electronic device according to other further embodiments of the present application;

FIG. 13 is a schematic cross-sectional structure of an electronic device according to other further embodiments of the present application;

FIG. 14 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 15 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 16 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 17 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 18 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 19 is a schematic cross-sectional view of an electronic device according to still other embodiments of the present application;

FIG. 20 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 21 is a schematic cross-sectional structure of an electronic device according to other still further embodiments of the present application;

FIG. 22 is a schematic view of a portion of an electronic device according to still other embodiments of the present application;

FIG. 23 is a schematic cross-sectional view of the electronic device shown in FIG. 22 at line E-E;

Fig. 24 is a schematic sectional structure at the F-F line of the electronic device shown in fig. 22.

Detailed Description

In the present embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and for example, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium. Wherein, "fixedly connected" means that the relative positional relationship is unchanged after being connected with each other. References to directional terms in the embodiments of the present application, such as "inner", "outer", etc., are only with reference to the directions of the drawings, and thus, the directional terms are used to better and more clearly describe and understand the embodiments of the present application, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. "plurality" means two or more.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The present application provides an electronic device 100. The electronic device 100 includes, but is not limited to, a cell phone, tablet (tablet personal computer), laptop (lap computer), personal digital assistant (personal digital assistant, PDA), personal computer, vehicle device, wearable device, walkman, radio, etc. Wherein the wearable device includes, but is not limited to, a smart bracelet, a smart watch, a smart head mounted display, smart glasses, and the like.

Referring to fig. 1 and 2, fig. 1 is a perspective view of an electronic device 100 according to some embodiments of the present application, and fig. 2 is an exploded schematic view of the electronic device 100 according to fig. 1. The electronic device 100 shown in fig. 1 and 2 is described by taking a mobile phone as an example. In this embodiment, the electronic device 100 may include a screen 10, a main circuit board 30, a sub circuit board 40, a battery 50, and a key assembly. The key assembly includes a housing 20 and a key module 60.

It is to be understood that fig. 1 and 2 and the related figures below only schematically illustrate some of the components comprised by the electronic device 100, the actual shape, actual size, actual position and actual configuration of which are not limited by fig. 1 and 2 and the figures below. In addition, when the electronic device 100 is some other form of device, the electronic device 100 may not include the screen 10.

In the embodiment shown in fig. 1 and 2, the electronic device 100 has a rectangular flat plate shape. For convenience of description of the embodiments below, an XYZ coordinate system is established. Specifically, the width direction of the electronic device 100 is defined as the X-axis direction, the length direction of the electronic device 100 is defined as the Y-axis direction, and the thickness direction of the electronic device 100 is defined as the Z-axis direction. It is to be understood that the coordinate system of the electronic device 100 may be flexibly set according to actual needs, which is not specifically limited herein. In other embodiments, the shape of the electronic device 100 may also be square flat, diamond flat, circular flat, oval flat, or shaped flat, among others.

The screen 10 is used to display images, videos, and the like. Referring to fig. 2, a screen 10 includes a light-transmitting cover plate 11 and a display screen 12 (english name: panel, also referred to as display panel). The light-transmitting cover plate 11 is laminated with the display screen 12. Specifically, the transparent cover plate 11 and the display screen 12 may be fixedly connected by gluing or the like. The light-transmitting cover plate 11 is mainly used for protecting and preventing dust of the display screen 12. The material of the light-transmitting cover plate 11 includes, but is not limited to, glass, ceramic, and plastic. The display 12 may be a flexible display or a rigid display. For example, the display 12 may be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini-led (mini organic light-emitting diode) display, a micro-led (micro organic light-emitting diode) display, a micro-organic led (micro organic light-emitting diode) display, a quantum dot led (quantum dot light emitting diodes, QLED) display, or a liquid crystal display 12 (liquid crystal display, LCD), among others.

The housing 20 is used to protect the internal electronics of the electronic device 100. With continued reference to fig. 1 and 2, the housing 20 includes a back cover 21 and a rim 22. The back cover 21 is located at one side of the display screen 12 far away from the transparent cover plate 11, and is stacked with the transparent cover plate 11 and the display screen 12. The frame 22 is located between the back cover 21 and the transparent cover 11, and the frame 22 is fixed on the back cover 21. Illustratively, the bezel 22 may be fixedly attached to the back cover 21 by adhesive, snap fit, welding, or screw connection. The frame 22 and the back cover 21 may be integrally formed, i.e. the frame 22 and the back cover 21 are integrally formed. The material of the back cover 21 includes, but is not limited to, metal, ceramic, plastic, and glass. In order to achieve the light and thin electronic device 100 and to ensure the structural strength of the back cover 21, the material of the back cover 21 may be selected from metal. The material of the frame 22 includes, but is not limited to, metal, ceramic, plastic, and glass. The material of the frame 22 may be the same as that of the back cover 21, or may be different.

The transparent cover plate 11 is fixed on the frame 22. Specifically, the light-transmitting cover plate 11 may be fixed to the bezel 22 by gluing. The light-transmitting cover plate 11, the back cover 21 and the frame 22 enclose an internal accommodating space of the electronic device 100. The internal receiving space receives the display screen 12, the main circuit board 30, the sub circuit board 40, and the battery 50.

The main circuit board 30 is used to integrate the main control chip. The main circuit board 30 is fixed in the housing 20 of the electronic device 100. Specifically, the main circuit board 30 may be fixed to a surface of the display screen 12 facing the back cover 21. Illustratively, the main circuit board 30 may be secured to the surface of the display screen 12 facing the back cover 21 by screwing, clamping, gluing, or the like. In other embodiments, referring to fig. 2, the electronic device 100 further includes a middle plate 23. The middle plate 23 is fixed to the inner surface of the rim 22 for one revolution. Illustratively, the middle plate 23 may be secured to the rim 22 by welding, clamping, or gluing. Middle plate 23 may also be integrally formed with rim 22. The middle plate 23 is made of metal, ceramic, plastic and glass. The middle plate 23 may be made of the same material as the back cover 21, or may be made of different materials. The middle plate 23 serves as a structural "skeleton" of the electronic device 100, and the main circuit board 30 may be fixed to the middle plate 23 by screwing, clamping, gluing, welding, or the like, and specifically, the main circuit board 30 may be fixed to a surface of the middle plate 23 facing the back cover 21.

The main control chip may be, for example, an application processor (application processor, AP), double data rate synchronous dynamic random access memory (DDR), universal memory (universal flash storage, UFS), etc. In some embodiments, the main circuit board 30 is electrically connected to the screen 10, and the main circuit board 30 is used to control the screen 10 to display images or video.

The main circuit board 30 may be a hard circuit board, a flexible circuit board, or a combination of a hard and soft circuit board. For example, the main circuit board 30 may employ an FR-4 dielectric board, a Rogers dielectric board, a mixed dielectric board of FR-4 and Rogers, or the like. Here, FR-4 is a code of a flame resistant material grade, and the Rogers dielectric board is a high frequency board.

The sub-circuit board 40 is fixed in the housing 20 of the electronic apparatus 100. The sub-circuit board 40 is arranged in the Y-axis direction with the main circuit board 30. The sub circuit board 40 may be fixed to a surface of the middle plate 23 facing the back cover 21. Specifically, the secondary circuit board 40 may be fixed to the surface of the middle plate 23 facing the back cover 21 by screwing, clamping, gluing, welding, or the like. In other embodiments, when the electronic device 100 does not include the middle board 23, the sub circuit board 40 may also be fixed on a side surface of the display screen 12 facing the back cover 21. Specifically, the secondary circuit board 40 may be fixed to a surface of the display screen 12 facing the back cover 21 by screwing, clamping, gluing, welding, or the like.

The secondary circuit board 40 may be a hard circuit board, a flexible circuit board, or a combination of a hard and soft circuit board. The secondary circuit board 40 may be an FR-4 dielectric board, a Rogers dielectric board, a hybrid dielectric board of FR-4 and Rogers, or the like.

The secondary circuit board 40 is electrically connected with the main circuit board 30 through the connection structure 51 to realize data and signal transmission between the secondary circuit board 40 and the main circuit board 30. The connection structure 51 may be a flexible circuit board (flexible printed circuit, FPC), among others. In other embodiments, the connection structure 51 may be a wire or an enameled wire.

The sub-circuit board 40 has integrated thereon a serial bus (universal serial bus, USB) device 401. The USB device 401 may be a USB type-C interface device, a USB type-A interface device, a USB type Micro-B interface device, or a USB type-B interface device. The frame 22 is provided with a socket 22a corresponding to the USB device 401, and accessories such as a charger, an earphone, a data line, etc. can be electrically connected with the USB device 401 through the socket 22a, so as to realize transmission of power, signals and data.

The battery 50 is fixed in the housing 20 of the electronic device 100. The battery 50 is located between the main circuit board 30 and the sub circuit board 40. The battery 50 is used to supply power to the main circuit board 30, the sub circuit board 40, the screen 10, etc. In some embodiments, the surface of the middle plate 23 facing the back cover 21 is provided with a groove 23a, and the battery 50 is mounted in the groove 23a. In other embodiments, when the electronic device 100 does not include the middle board 23, the recess 23a may also be defined by the main circuit board 30, the sub circuit board 40, and a side surface of the display screen 12 facing the back cover 21.

The battery 50 may include, but is not limited to, a nickel cadmium battery, a nickel hydrogen battery, a lithium battery, or other types of batteries 50. In addition, the number of the batteries 50 in the embodiment of the present application may be multiple or one, and the specific number and arrangement manner of the batteries 50 in the embodiment of the present application may be set according to actual needs.

The key module 60 is used for inputting instructions, and the key module 60 is electrically connected with the main circuit board 30. The main circuit board 30 is used for controlling the internal functional devices of the electronic device 100 according to the instructions input by the key module 60. The key module 60 may be a volume key module, so that the size of the sound of the electronic device 100 can be adjusted by triggering the key module 60. Alternatively, the key module 60 may be a power key module, so that the electronic device 100 can be turned on, turned off, locked or awakened by triggering the key module 60.

The key module 60 may be disposed on a side or top edge of the frame 22 to serve as a side key or top key. The number of the key modules 60 may be one or more. Fig. 1 only shows an example in which the number of key modules 60 is two, and the two key modules 60 are arranged at intervals in the Y-axis direction as side keys, and is not to be construed as a particular limitation to the constitution of the present application. In the embodiment shown in fig. 1, one of the two key modules 60 is a volume key module, and the other key module 60 is a power key module.

Referring to fig. 3 and 4, fig. 3 is a schematic cross-sectional structure of the electronic device 100 shown in fig. 1 at line A-A. Fig. 4 is an enlarged view of a circled portion at B in the electronic device 100 according to fig. 3. The "A-A line" refers to the A-A line and the planes indicated by the arrows at the two ends of the A-A line, and the description of the similar drawings should be understood in the following, and will not be repeated in the following. The key module 60 includes keys 61 and a switch 62.

Referring to fig. 5, and in conjunction with fig. 4, fig. 5 is an enlarged view of the electronic device 100 shown in fig. 1, circled at C. The outer surface of the housing 20 is provided with a mounting groove 22b. The key 61 is mounted in the mounting groove 22b. And the key 61 is movable in a first direction relative to the housing 20. The installation groove 22b has an opening 22b1 and a groove bottom wall 22b2, the groove bottom wall 22b2 is opposite to the opening 22b1, and the arrangement direction of the groove bottom wall 22b2 and the opening 22b1 is a first direction.

It will be appreciated that the first direction is related to the particular placement of the mounting slot 22b. In some examples, referring to fig. 5, the mounting groove 22b is formed on one of the long sides (i.e., the side parallel to the Y-axis direction) of the frame 22, and the first direction is the X-axis direction. In other examples, the mounting groove 22b may be formed on one of the short sides (i.e., the side parallel to the X-axis direction) of the frame 22, where the first direction is the Y-axis direction. In other examples, the first direction is the Z-axis direction when the mounting groove 22b is opened on the back cover 21.

Specifically, the mounting groove 22b may extend in the second direction to form a bar-shaped groove. Wherein the second direction is perpendicular to the first direction. In some embodiments, the mounting slot 22b may be a bar-shaped slot extending along the length direction (i.e., the Y-axis direction) of the electronic device 100. Of course, it is understood that the extending direction of the mounting groove 22b is not limited thereto, and the mounting groove 22b may extend in the thickness direction (i.e., the Z-axis direction) of the electronic apparatus 100 as a bar-shaped groove.

In order to facilitate the pressing operation of the key 61 by the user, the pressing surface 61a of the key 61 may be located outside the opening 22b1 of the mounting groove 22 b. The pressing surface 61a is a portion that the user touches when pressing the key module 60. The switching member 62 may be located at a side of the key 61 away from the pressing surface 61a, and the switching member 62 is electrically connected to the main circuit board 30. In some examples, the switch 62 may be disposed on the main circuit board 30. In other examples, the switch 62 may be disposed on the flexible circuit board 63 and electrically connected with the main circuit board 30 through the flexible circuit board 63.

Alternatively, the switch 62 may be a dome. Specifically, when the user presses the key 61 to apply a force to the key 61, the user needs to overcome the force of the dome to the key 61 to force the dome to deform, so that the dome contacts the circuit on the main circuit board 30 or the flexible circuit board 63, thereby conducting to form a loop to realize signal transmission. When the force applied to the key 61 by the user is removed, the dome resumes the shape change, and the key 61 moves to reset in the direction toward the opening 22b1 of the mounting groove 22b by the self resilience of the dome, while the dome is disconnected from the electrical connection relationship of the main circuit board 30/flexible circuit board 63.

In this embodiment, limited to the assembly between the key module 60 and the housing 20, the force applied to the keys 61 by the dome that the user overcomes is constant when the user activates the key module 60. However, different users have different demands on the pressing feel and the pressing experience of the key module 60, and some users want the key module 60 to be hard, so that the users can use a larger force to trigger the key module 60, and some users want the key module 60 to be soft, so that the users can use a smaller force to trigger the key module 60. Therefore, how to adjust the reaction force of the key module 60 to the user according to the user's requirement is a technical problem to be solved.

In order to solve the technical problem, please refer to fig. 6 and fig. 7a, fig. 6 is a schematic diagram of a part of the structure of an electronic device 100 according to further embodiments of the present application; fig. 7a is a schematic cross-sectional structure of the electronic device 100 shown in fig. 6 at line D-D. The embodiment of the present application is different from the above-described embodiment in that the key assembly includes the driving part 64 in addition to the key 61 and the switch 62 described above. The driving part 64 may be located in the mounting groove 22b, and the driving part 64 may be connected to the housing 20 and the key 61, respectively. Illustratively, the actuating member 64 is connected to an end of the key 61 adjacent the slot bottom wall 22b2 and the slot bottom wall 22b2, respectively.

The driving part 64 is used for normally driving the key 61 to move along a first direction (for example, the X-axis direction in fig. 7 a) and in a direction away from the groove bottom wall 22b 2. Here, "normally driven" means that the driving member 64 always applies a force to the key 61 in a direction from the groove bottom wall 22b2 to the opening 22b 1. In some examples, the switch 62 is a dome, so when the user presses the key 61, the user needs to overcome not only the self-elastic force of the dome, but also the acting force applied to the key 61 by the driving part 64, so as to trigger the switch 62; after the user's force on the key 61 is removed, the key 61 may be moved in a first direction away from the groove bottom wall 22b2 to a reset position by the combination of the dome and the driving member 64. In other examples, when the switch 62 is of other types of construction, the user may only need to overcome the force applied to the key 61 by the driving member 64 to trigger the switch 62 when the user presses the key 61; after the user's force on the key 61 is removed, the key 61 may be moved in a first direction away from the groove bottom wall 22b2 to a reset by the driving means 64 only. Regardless of the type of the switch 62, the force of the key 61 is described below only with respect to the driving part 64 for simplicity of description, regardless of whether the switch 62 provides the force to the key 61.

The key 61 is movable in a second direction (e.g., Y-axis direction as in fig. 7 a) relative to the housing 20 for adjusting the amount of force applied by the driving member 64 to the key 61 in the first direction. That is, the key 61 may be engaged with the driving part 64, and by the engagement of the key 61 with the driving part 64, when the user moves the key 61 in the second direction relative to the housing 20, the amount of the force applied to the key 61 by the driving part 64 in the first direction may be adjusted.

Specifically, when the user drives the key 61 to move to a different position along the second direction, the magnitude of the force applied to the key 61 along the first direction by the driving member 64 is different. When the user presses the key 61 at a different position in the first direction, the force of the driving member 64 in the first direction, which the user needs to overcome to press the key 61, varies in size with the key 61. That is, the force required for the user to press the key 61 to trigger the switch 62 is different. That is, when the user-actuated key 61 is in a position where the force in the first direction applied to the key 61 by the actuating member 64 is large, the force in the first direction applied by the actuating member 64 that the user needs to overcome to press the key 61 is also large, that is, the force required by the user to press the key 61 to trigger the switch 62 is also large; when the user actuates the key 61 to a position where the force in the first direction applied by the actuation member 64 to the key 61 is small, the force in the first direction required by the user to press the key 61 to overcome the actuation member 64 is small, i.e. the force required by the user to press the key 61 to trigger the switch member 62 is small. Thus, the user experience is reflected in that the force required by pressing the key 61 is different, the hardness degree of the key 61 is different, and the pressing hand feeling of the user on the key 61 is different, so that the user can adjust the pressing hand feeling of the key 61 by driving the key 61 to move to different positions along the second direction according to the actual needs of the user, and the use requirements of different users are met. And, after the force applied to the key 61 by the user is removed, the key 61 can be moved to be reset in a direction away from the groove bottom wall 22b2 by the driving of the driving member 64. In addition, the size of the acting force of the driving part 64 is adjusted by utilizing the keys 61, so that the structure is simpler, the operation of a user is more convenient, the purpose of adjustment can be realized without disassembling the machine, and the experience of the user is better.

With continued reference to fig. 6 and 7a, the drive member 64 includes a first magnet 641 and a second magnet 642.

The first magnet 641 is provided on the key 61. Specifically, the connection manner of the first magnet 641 and the key 61 includes, but is not limited to, clamping, gluing, or screwing. Specifically, the first magnet 641 may be a magnet or a magnetic steel. The shape of the first magnet 641 includes, but is not limited to, a cube-like, prismatic, cylindrical, pyramidal, or other shaped shape. Further, both side surfaces in the thickness direction of the first magnet (the thickness direction may be parallel to the first direction) may be planar. The first magnet 641 has a simple structure, is convenient to manufacture, and occupies a small space.

The second magnet 642 is provided on the groove bottom wall 22b 2. Specifically, the second magnet 642 is connected to the housing 20 by, but not limited to, clamping, gluing, or screwing. Illustratively, the housing 20 has a receiving hole 22b21 at the slot bottom wall 22b2, the receiving hole 22b21 communicating with the interior of the housing 20, and the second magnet 642 is embedded within the receiving hole 22b 21. Of course, it is understood that the receiving hole 22b21 may be formed as a blind hole having a groove shape instead of communicating with the inside of the housing 20. Specifically, the second magnet 642 may be a magnet or a magnet steel. The shape of the second magnet 641 includes, but is not limited to, a cube-like, prismatic, cylinder-like, cone-like, or other shaped shape. Further, both side surfaces in the thickness direction of the second magnet 642 may be planar. The arrangement is simple in structure, convenient to manufacture and small in space occupied by the first magnet.

The magnetizing direction of the second magnet 642 (the direction from the south pole to the north pole, i.e., the direction from the S pole to the N pole), the magnetizing direction of the first magnet 641 is parallel to the first direction, and the magnetizing direction of the second magnet 642 is opposite to the magnetizing direction of the first magnet 641. For example, referring to fig. 7a, the end of the first magnet 641 adjacent to the second magnet 642 is S-pole, the end of the first magnet 641 remote from the second magnet 642 is N-pole, the end of the second magnet 642 adjacent to the first magnet 641 is S-pole, and the end of the second magnet 642 remote from the first magnet 641 is N-pole. Also exemplary, the first magnet 641 has an N-pole end adjacent to the second magnet 642, the first magnet 641 has an S-pole end remote from the second magnet 642, the second magnet 642 has an N-pole end adjacent to the first magnet 641, and the second magnet 642 has an S-pole end remote from the first magnet 641. As long as the opposite magnetizing directions of the first magnet 641 and the second magnet 642 in the first direction are ensured.

With continued reference to fig. 7a and 7b, fig. 7b is a schematic projection view of the first magnet 641 and the second magnet 642 on the reference plane a in the electronic device 100 shown in fig. 6. A plane perpendicular to the first direction is defined as a reference plane a in which the orthographic projection of the first magnet 641 and the orthographic projection of the second magnet 642 overlap to form an overlap region b (a filled region as illustrated in fig. 7 b). That is, during the movement of the key 61 in the second direction relative to the housing 20, no matter where the key 61 is moved in the second direction, the orthographic projection of the first magnet 641 in the reference plane a and the orthographic projection of the second magnet 642 in the reference plane a always overlap, and an overlapping region b is formed.

Specifically, since the magnetizing direction of the second magnet 642, the magnetizing direction of the first magnet 641 and the first direction are parallel, and the magnetizing direction of the second magnet 642 is opposite to the magnetizing direction of the first magnet 641, and in the reference plane a, the orthographic projection of the first magnet 641 and the orthographic projection of the second magnet 642 overlap to form an overlapping region b. In this way, a magnetic repulsive force along the first direction can be formed between the first magnet 641 and the second magnet 642 at the position corresponding to the overlapping region b, and the magnetic repulsive force is the acting force applied to the key 61 by the driving part 64. That is, when the user presses the key 61, a magnetic repulsive force between the first magnet 641 and the second magnet 642 at the corresponding overlapping region b may act on the user as a reaction force. The user needs to overcome the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapped region b in order to activate the switching member 62. And, after the force applied to the key 61 by the user is removed, the key 61 may be moved to be reset in a direction away from the groove bottom wall 22b2 by the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapped region b.

In the embodiment of the present application, by making the driving part 64 include the first magnet 641 and the second magnet 642 and using the magnetic repulsive force of the first magnet 641 and the second magnet 642 in the overlapping region b to drive the key 61 to reset toward the direction away from the groove bottom wall 22b2, the structure is simpler, and the assembly is facilitated, with low cost.

With continued reference to fig. 7a, 7b and 7c, fig. 7c is a schematic projection view of the first magnet 641 and the second magnet 642 on the reference plane a in the electronic device 100 shown in fig. 6, wherein the first magnet 641 in fig. 7b and 7c is at different positions. The key 61 is moved in a second direction with respect to the housing 20 for adjusting the area size of the overlap region b. Specifically, since the second magnet 642 is relatively fixed to the housing 20, during the movement of the key 61 relative to the housing 20 in the second direction, the portion of the first magnet 641 facing the second magnet 642 in the first direction changes, that is, the size of the area of the overlapping region b formed by the orthographic projection of the first magnet 641 and the orthographic projection of the second magnet 642 in the reference plane a changes with the movement of the key 61 relative to the housing 20 in the second direction, and as shown in fig. 7b and 7c, the position of the first magnet 641 is different and the area of the overlapping region b is also different. It is understood that the larger the area of the overlap region b, the larger the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b, and the smaller the area of the overlap region b, the smaller the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b.

In this way, by adjusting the area of the overlapping area b, the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapping area b can be adjusted, the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapping area b can act on the user as a reaction force, when the key 61 is located at different positions along the second direction, the force required by the user to press the key 61 to trigger the switch member 62 is different, so that the pressing hand feeling reflected on the user experience is different, and the user can conveniently move to different positions along the second direction by driving the key 61 according to the actual needs of the user, so as to adjust the pressing hand feeling of the key 61, and meet the use requirements of different users.

In the embodiment of the application, the area of the overlapped area b is adjusted by utilizing the movement of the key 61 relative to the casing 20 in the second direction, and then the adjustment of the acting force applied to the key 61 by the driving component 64 is realized by the area of the overlapped area b, so that the structure is simple, the operation is convenient, and the use experience of a user can be improved.

Specifically, the thickness of the first magnet 641 is unchanged along the second direction. By this arrangement, the structure of the first magnet 641 can be simplified, and the difficulty in manufacturing the first magnet 641 can be reduced. Illustratively, the thickness of the first magnet 641 is equal everywhere along the second direction and the first magnet 641 is not equal in thickness in the third direction, wherein the third direction is perpendicular to both the second direction and the first direction. Also exemplary, the thickness of the first magnet 641 is equal everywhere. In other examples, the thickness of the first magnet 641 may also be varied along the second direction. For example, in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the first magnet 641 is trapezoidal (e.g., right-angle trapezoidal, or isosceles trapezoidal).

Specifically, the thickness of the second magnet 642 is unchanged along the second direction. By this arrangement, the structure of the second magnet 642 can be simplified, and the difficulty in processing and manufacturing the second magnet 642 can be reduced. Illustratively, the thickness of the second magnet 642 is equal throughout in the second direction and the second magnet 642 is not equal in thickness in the third direction. Also exemplary, the thickness of the second magnet 642 is equal throughout. In other examples, the thickness of the second magnet 642 may also vary along the second direction. For example, in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the second magnet 642 is trapezoidal (e.g., right trapezoid, or isosceles trapezoid).

In the embodiment of the present application, by making the thicknesses of the first magnet 641 and the second magnet 642 equal everywhere, in the process of moving the key 61 in the second direction relative to the housing 20, the influence of the thickness variation of the first magnet 641 and the second magnet 642 on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be neglected, which is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, to change the magnitudes of the magnetic repulsive forces of the first magnet 641 and the second magnet 642 corresponding to the overlapping region b only by the variable of the magnitude of the area of the overlapping region b, thereby facilitating the simplification of the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and simultaneously facilitating the improvement of the reliability of the operation of the driving member 64.

In particular, the thickness of the first magnet 641 and the thickness of the second magnet 642 may be equal. In other examples, the thickness of the first magnet 641 and the thickness of the second magnet 642 may also be unequal. As long as the thickness of the first magnet 641 is ensured to be equal everywhere, the thickness of the second magnet 642 is ensured to be equal everywhere.

Specifically, the shape and size of the second magnet 642 and the first magnet 641 are the same, that is, the specifications of the first magnet 641 and the second magnet 642 are the same. In this way, in the actual machining process, only the magnet with one specification needs to be machined, and the magnet with the one specification is used to be respectively selected as the first magnet 641 and the second magnet 642, so that two kinds of magnets do not need to be machined respectively, the machining process can be simplified, the production cost can be reduced, and the machining efficiency can be improved. Of course, the present application is not limited thereto, and in other examples, the shapes and sizes of the second magnet 642 and the first magnet 641 may be different.

Further, the size of the space between the first magnet 641 and the second magnet 642 is equal everywhere, that is, the surface of the first magnet 641 facing the second magnet 642 and the surface of the second magnet 642 facing the first magnet 641 are parallel. Thus, along the second direction, the size of the spacing between the first magnet 641 and the second magnet 642 at the overlap region b is constant regardless of where the user actuated key 61 is located. Not only the compactness of the structure of the driving part 64 can be ensured, but also the influence of the change of the space dimension on the magnitude of the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored in the process of moving the key 61 relative to the housing 20 along the second direction, so that the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be regulated by using a single variable or less, that is, the change of the magnitude of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapping region b can be realized only by virtue of the variable of the magnitude of the area of the overlapping region b, thus being beneficial to simplifying the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and being beneficial to improving the working reliability of the driving part 64. Of course, it is understood that in other embodiments, the first magnet 641 and the second magnet 642 may be non-equidistant in the second direction.

Referring to fig. 8, and in conjunction with fig. 7a, fig. 8 is an exploded schematic view of the first magnet 641, the key 61, and the fixed base 65 in the electronic device 100 shown in fig. 6. The key 61 includes a pressing plate 611 and a clamping portion 612.

The pressing plate 611 faces the groove bottom wall 22b2. The surface of the pressing plate 611 facing away from the groove bottom wall 22b2 is a pressing surface 61a. The pressing plate 611 is formed in a flat plate shape. Specifically, the pressing plate 611 is formed in a rectangular flat plate shape, an oblong flat plate shape, an oval flat plate shape, or a special-shaped shape extending in the second direction.

The engagement portion 612 is provided on a surface of the pressing plate 611 facing the groove bottom wall 22b2. The clamping portion 612 and the pressing plate 611 may be integrally formed, so that not only the structural strength of the clamping portion 612 and the pressing plate 611 may be improved, but also the processing process of the key 61 may be simplified, and the production cost may be reduced. Also exemplary, the clamping portion 612 and the pressing plate 611 are separate molded pieces, and the clamping portion 612 and the pressing plate 611 are assembled by gluing, clamping, welding, screw connection, or the like.

Specifically, referring to fig. 8, two clamping portions 612 are provided, and the two clamping portions 612 are disposed opposite to each other in the second direction and spaced apart from each other. This arrangement is advantageous in that the space in the longitudinal direction of the pressing plate 611 is fully utilized.

Of course, in other examples, the two snap-in portions 612 may also be disposed opposite and spaced apart in the third direction. It is understood that the number of the clamping portions 612 is not limited to two, the number of the clamping portions 612 may be three, four or five, etc., and the clamping portions 612 may be divided into two groups of clamping portions 612, the two groups of clamping portions 612 may be arranged at intervals along the third direction, the clamping portions 612 of each group of clamping portions 612 may be one or more, and when the clamping portions 612 of each group of clamping portions 612 include a plurality of clamping portions 612, the clamping portions 612 of each group of clamping portions 612 may be arranged at intervals in the second direction.

With continued reference to fig. 8, each clamping portion 612 includes a first segment 6121 and a second segment 6122. One end of the first segment 6121 is connected to a surface of the pressing plate 611 facing the groove bottom wall 22b2, and the first segment 6121 extends toward a direction approaching the groove bottom wall 22b 2. Illustratively, the first segment 6121 extends along a first direction toward the groove bottom wall 22b 2. Further, the first segment 6121 is disposed perpendicular to the pressing plate 611.

The second segment 6122 is connected to the other end of the first segment 6121, that is, the second segment 6122 is connected to the end of the first segment 6121 adjacent to the groove bottom wall 22b2, and the second segment 6122 is opposite to the pressing plate 611 in the first direction to define the engagement space 61b. Illustratively, the second segment 6122 of each clip portion 612 extends in a direction away from/toward the other clip portion 612.

In some embodiments, the first magnet 641 may be disposed on a surface of the second segment 6122 adjacent to the slot bottom wall 22b 2. Illustratively, the first magnet 641 may be secured to the surface of the second segment 6122 adjacent to the slot bottom wall 22b2 by gluing, clamping, or screwing. In other embodiments, the first magnet 641 may also be defined by at least a portion of the second segment 6122, e.g., the entire second segment 6122 defines the first magnet 641. Alternatively, in other examples, the first magnet 641 may also be defined by the catch 612.

With continued reference to fig. 8, the key module 60 further includes a fixing base 65. The fixed base 65 is mounted in the mounting groove 22b, and the key 61 is fixed to the fixed base 65. Specifically, the pressing plate 611 is located on the side of the fixed base 65 facing away from the groove bottom wall 22b 2. In this way, the user can easily press the pressing plate 611 and thus trigger the key 61. The fixed base 65 is relatively fixed to the housing 20 in the second direction, and the fixed base 65 moves synchronously with the key 61 in the first direction. That is, the fixed base 65 moves in synchronization with the key 61 integrally with respect to the housing 20 in the first direction, and the key 61 is movable in the second direction with respect to the housing 20 and the fixed base 65 integrally. In this way, by providing the fixing base 65, on the one hand, the fixing of the key 61 in the mounting groove 22b by the fixing base 65 can be facilitated, and on the other hand, the movement of the key 61 in the first direction and the second direction relative to the housing 20 can be realized. Of course, it is understood that in other examples, the key module 60 may not include the fixed base 65.

With continued reference to fig. 8, the fixed base 65 includes a fixed plate 651, a trigger rod 653, and a limit tongue 652. The fixing plate 651 is opposite to the tank bottom wall 22b2, and the fixing plate 651 is located between the pressing plate 611 and the tank bottom wall 22b 2. The fixing plate 651 is formed in a flat plate shape. Specifically, the fixing plate 651 is formed in a rectangular flat plate shape, an oblong flat plate shape, an oval flat plate shape, or a special-shaped shape extending in the second direction.

The circumferentially extending track of the fixing plate 651 is identical to the circumferentially extending track of the mounting groove 22b, so that the fixing plate 651 can be fitted with the mounting groove 22 b. So that the fixing plate 651 can remain relatively fixed with the housing 20 in the second direction by the limit of the mounting groove 22b when the user-actuated key 61 moves in the second direction with respect to the housing 20, so that the fixing base 65 remains relatively fixed with the housing 20 as a whole in the second direction. It is of course understood that the manner of limiting the fixing base 65 in the second direction is not limited thereto, and the fixing base 65 may also be limited by other structures than the fixing plate 651, such as the cooperation of the limiting tongue 652 and the limiting groove 22b3 described below, so that the entire fixing base 65 and the housing 20 remain relatively fixed in the second direction.

With continued reference to fig. 8, the fixing plate 651 is formed with a locking hole 6511, and the locking hole 6511 penetrates the fixing plate 651 in the thickness direction of the fixing plate 651. Specifically, the card hole 6511 extends in a rectangular, oblong, or rectangular shape in the second direction. The number of the locking holes 6511 is the same as and corresponds to the number of the locking portions 612 one by one.

The first section 6121 of the clamping portion 612 is inserted through the corresponding clamping hole 6511 to the other end of the first section 6121 and is located at one side of the fixing plate 651 adjacent to the bottom wall 22b2 of the groove, so that a portion of the fixing plate 651 can be located in the accommodating space. The dimension of the clamping bore 6511 in the second direction is greater than the dimension of the portion of the first segment 6121 that is located within the clamping bore 6511. In this way, the user-driven button 61 can be moved along the second direction relative to the fixed base 65, and the problem that the fixed base 65 is restricted from moving due to the fact that the dimension of the clamping hole 6511 in the second direction is the same as the dimension of the part of the clamping portion 612 located in the clamping hole 6511 in the second direction can be prevented.

The trigger lever 653 is provided on the surface of the fixed plate 651 toward the groove bottom wall 22b 2. Specifically, the trigger lever 653 is located between the two detent holes 6511. The trigger rod 653 is rod-shaped. In some examples, the trigger rod 653 and the fixed plate 651 may be integrally formed, so that the connection strength between the trigger rod 653 and the fixed plate 651 may be improved, the processing process of the trigger rod 653 and the fixed plate 651 may be simplified, and the production cost may be reduced. In other examples, the trigger rod 653 and the fixed plate 651 can also be coupled by adhesive, snap fit, welder, or screw connection, among others.

The switching member 62 is located on a side of the trigger rod 653 remote from the fixed plate 651, and is opposite to the trigger rod 653. Specifically, the housing 20 is formed with a relief hole 22b22 communicating the mounting groove 22b with the interior of the housing 20, the relief hole 22b22 being located at the groove bottom wall 22b2 for relieving the trigger rod 653, and the switch 62 being located in the interior of the housing 20 opposite to the relief hole 22b 22. Thus, when the user presses the key 61 in the first direction, the key 61 and the fixed base 65 move integrally in a direction approaching the bottom wall 22b2 of the main circuit board 30, so that the trigger rod 653 can move synchronously therewith, and the trigger rod 653 penetrates the trigger switch member 62 in the avoidance hole 22b22 to conduct the switch member 62 with the main circuit board 30. Of course, it is understood that the present application is not limited thereto and that in other examples, the switch 62 may also be disposed within the mounting slot 22 b.

The stopper tongue 652 is connected to a surface of the fixing plate 651 facing the groove bottom wall 22b 2. Specifically, the limit tongue 652 and the fixing plate 651 may be an integral piece. In this way, the connection strength between the limit tongue 652 and the fixed plate 651 can be improved, the processing technology of the limit tongue 652 and the fixed plate 651 can be simplified, and the production cost can be reduced. In other examples, the stop tongue 652 may be coupled to one another by a snap fit, adhesive, weld, or screw connection.

Specifically, limit tongue 652 includes a connecting segment 6521 and a snap-in segment 6522. Wherein one end of the connecting section 6521 is connected to the surface of the fixing plate 651 toward the groove bottom wall 22b 2. The connecting section 6521 extends in the first direction toward the direction approaching the groove bottom wall 22b 2. The connection section 6521 may be formed in a rectangular sheet shape, a trapezoidal sheet shape, an oval shape, or an oblong sheet shape. The tab section 6522 is connected to the other end of the connection section 6521, and the tab section 6522 extends toward the inner peripheral surface of the mounting groove 22b and beyond the fixing plate 651. Specifically, please continue to refer to fig. 8, and referring to fig. 7a, two limiting tongues 652 are opposite and spaced apart in the second direction, two side groove walls of the mounting groove 22b along the second direction are respectively provided with a limiting groove 22b3, and the two blocking tongue sections 6522 of the two limiting tongues 652 are in one-to-one correspondence with the two limiting grooves 22b3, and each blocking tongue section 6522 is accommodated in the corresponding limiting groove 22b 3.

The tab segment 6522 may be rectangular in shape. Alternatively, the tab portion 6522 may also be trapezoidal in shape. Alternatively still, the tab 6522 is oval or oblong in shape.

With continued reference to fig. 7a, the size of the limiting groove 22b3 in the first direction is greater than the size of the portion of the limiting tongue 652 located within the limiting groove 22b3 in the first direction. That is, the size of the limiting groove 22b3 in the first direction is larger than the size of the latch section 6522 in the first direction. In this way, the movement of the key 61 and the fixed base 65 as a whole in the first direction can be facilitated. When the user does not press the key module 60, the driving member 64 always drives the key 61 and the fixed base 65 to move in the first direction along the direction away from the groove bottom wall 22b2 until the limit tongue 652 abuts against the groove wall of the limit groove 22b3 on the side away from the inside of the housing 20. Thus, the key 61 and the fixing base 65 are prevented from being entirely separated from the mounting groove 22b, and the reliability of the assembly is improved.

It will be understood, of course, that in other examples, the limit tongue 652 may be connected to both ends of the fixing plate 651 in the second direction. Alternatively, when the limit tongue 652 is provided at both ends of the fixing plate 651 in the second direction, the limit tongue 652 may not include the connecting section 6521, but may include only the catch section 6522 connected to the fixing plate 651.

In order to prevent the key 61 from moving in the second direction due to contact with a structure independent of other structures outside the electronic device 100 when the key 61 is not driven by the user to move in the second direction, the key module 60 may further include a damping structure. The damping structure is used to provide a damping force for movement of the key 61 relative to the stationary base 65 in the second direction. Specifically, the damping structure may be defined by opposite wall surfaces of the engaging space 61b along the first direction, so that a portion of the fixing plate 651 is clamped by the opposite wall surfaces of the engaging space 61b along the first direction, thereby providing a damping force for the movement of the key 61 relative to the fixing base 65 along the second direction, which is simple and reliable in structure. In other examples, the damping structure may also be defined by opposite edges of the clamping hole 6511 in the third direction, that is, the first segment 6121 may be clamped by opposite edges of the clamping hole 6511 in the third direction, thereby providing a damping force for movement of the key 61 relative to the fixed base 65 in the second direction. In other examples, the damping structure may also be damping particles (rubber or silica gel particles, etc.) that may be filled between the opposite wall surfaces of the engaging space 61b and the fixing plate 651 to provide a damping force for movement of the key 61 relative to the fixing base 65 in the second direction.

Alternatively, the driving unit 64 may be one or more. For example, as shown in fig. 7a and 8, there are two driving parts 64, and the two driving parts 64 are disposed at intervals in the second direction and located at both sides of the trigger rod 653 in the second direction.

Referring to fig. 9, fig. 9 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 6-8 in that the first magnet 641 and the second magnet 642 have a spacing that varies between the first magnet 641 and the second magnet 642 in a second direction, and the key 61 is moved in the second direction relative to the housing 20 such that the overlap region b corresponds to a different size of spacing. In this way, when the user-actuated key 61 is moved in the second direction relative to the housing 20, the overlap region b can be located at a different-sized spacing of the first magnet 641 and the second magnet 642. Specifically, the larger the interval between the first magnet 641 and the second magnet 642, the smaller the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b, and the smaller the interval between the first magnet 641 and the second magnet 642, the larger the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b. Accordingly, the user can adjust the size of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapping region b by driving the movement of the key 61 in the second direction with respect to the housing 20 such that the overlapping region b is located at the different-sized intervals between the first magnet 641 and the second magnet 642.

Specifically, with continued reference to fig. 9, the first magnet 641 has a stepped shape. By providing the first magnet 641 in a stepped shape, it may be advantageous to adjust the size of the space between the first magnet 641 and the second magnet 642 by the stepped first magnet 641 during movement of the user-actuated key 61 in the second direction relative to the housing 20. Of course, the present application is not limited thereto, and in other examples, the first magnet 641 may be non-stepped, for example, cubic, and the first magnet 641 and the second magnet 642 may be disposed at unequal intervals in the second direction by using an inclined arrangement of the first magnet 641 with respect to the reference plane a when installed.

Illustratively, the thickness of the first magnet 641 is equal throughout. In this configuration, the influence of the thickness variation of the first magnet 641 on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored, so that it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the magnitude of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapping region b only by means of the variable of the change of the interval, thereby facilitating the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, the present application is not limited thereto, and the thickness of the first magnet 641 may also be not everywhere equal. This makes it possible to adjust the magnitude of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b by the combined action of the variation in thickness of the first magnet 641 and the variation in the interval between the second magnet 642 and the first magnet 641 to increase the adjustment range of the magnetic repulsive force.

Specifically, the thickness of the second magnet 642 is equal everywhere. By doing so, it is possible to ignore the influence of the thickness variation of the second magnet 642 on the magnetic repulsive force between the first magnet 641 and the second magnet 642, and it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the magnitude of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapping region b by only the variable of the change of the interval, thereby facilitating the simplification of the assembling operation of the first magnet 641 and the second magnet 642 without considering the assembling problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, the thickness of the second magnet 642 may also be other than everywhere equal, as the present application is not limited thereto. This makes it possible to adjust the magnitude of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b by the combined action of the thickness variation of the second magnet 642 and the variation of the interval between the second magnet 642 and the first magnet 641 to increase the adjustment range of the magnetic repulsive force.

Optionally, during the movement of the key 61 in the second direction relative to the housing 20, the orthographic projection of the second magnet 642 on the reference plane a is always located within the outline of the orthographic projection of the first magnet 641 on the reference plane a, so that the area size of the overlapping area b is always kept unchanged. In this configuration, the influence of the size of the overlapped area on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored, and it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the size of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapped area b only by means of the variable of the change of the interval, thereby facilitating the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, the present application is not limited thereto, and in other examples, the area size of the overlapped area b may be varied during the movement of the key 61 in the second direction with respect to the housing 20, so that the combined action of the area size of the overlapped area b and the variation of the interval between the second magnet 642 and the first magnet 641 may be utilized to adjust the size of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapped area b to increase the adjustment range of the magnetic repulsive force.

Referring to fig. 10, fig. 10 is a schematic cross-sectional structure of an electronic device 100 according to further embodiments of the present application. This embodiment differs from the embodiment shown in fig. 9 in that the first magnet 641 is no longer stepped, but rather the second magnet 642 is stepped. By providing the second magnet 642 in a stepped shape, it may be advantageous to adjust the size of the gap between the second magnet 642 and the first magnet 641 with the stepped second magnet 642 during movement of the user-actuated key 61 in the second direction relative to the housing 20. Of course, the present application is not limited thereto, and in other examples, the second magnet 642 may be non-stepped, for example, cubic, and the first magnet 641 and the second magnet 642 may be non-equally spaced in the second direction by using an inclined arrangement of the second magnet 642 with respect to the reference plane a when installed.

Optionally, during the movement of the key 61 in the second direction relative to the housing 20, the orthographic projection of the first magnet 641 on the reference plane a is always located within the outline of the orthographic projection of the second magnet 642 on the reference plane a, so that the area size of the overlapping area b is always kept unchanged. In this configuration, the influence of the size of the overlapped area on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored, and it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the size of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapped area b only by means of the variable of the change of the interval, thereby facilitating the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, the present application is not limited thereto, and in other examples, the area size of the overlap region b may be varied during the movement of the key 61 in the second direction with respect to the housing 20, so that the magnitude of the magnetic repulsive force between the second magnet 642 and the first magnet 641 corresponding to the overlap region b may be adjusted by the combined action of the area size of the overlap region b and the variation of the interval between the first magnet 641 and the second magnet 642.

It is understood that in other examples, the first magnet 641 and the second magnet 642 may each be formed in a stepped shape.

Referring to fig. 11, fig. 11 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 6-8 in that: the first magnet 641 is not uniformly thick in the second direction. Illustratively, the thickness of the first magnet 641 is not equal everywhere. Also exemplary, the thickness of the first magnet 641 varies in the second direction and is equal in thickness in the third direction. The key 61 is moved in the second direction with respect to the housing 20 such that the overlapped area b corresponds to the area of different thickness of the first magnet 641. That is, during the movement of the key 61 in the second direction relative to the housing 20, the different thickness regions of the first magnet 641 may be respectively opposite to the second magnet 642 in the first direction to form different overlapped regions b. It can be understood that, in the first magnet 641, the magnetic field strength of the first magnet 641 at the different thickness regions is different, so that the magnitude of the magnetic repulsive force at the overlap region b formed between the first magnet 641 and the second magnet 642 at the different thickness regions is different. The magnetic repulsive force at the overlapped region b formed between the region of the first magnet 641 having a larger thickness and the second magnet 642 is larger, and the magnetic repulsive force at the overlapped region b formed between the region of the first magnet 641 having a smaller thickness and the second magnet 642 is smaller. Accordingly, the user can adjust the size of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapping region b by driving the key 61 to move in the second direction with respect to the housing 20 such that the overlapping region b is located at the region of different thickness of the first magnet 641.

In particular, the spacing between the first magnet 641 and the second magnet 642 is everywhere equal. In this configuration, the influence of the gap variation on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored, and it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the magnitude of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapping region b by only depending on the variable of the thickness of the first magnet 641, thereby facilitating the simplification of the assembling operation of the first magnet 641 and the second magnet 642 without considering the assembling problem caused by other variables, and also advantageous to improve the reliability of the operation of the driving member 64. Of course, it is understood that the spacing between the first magnet 641 and the second magnet 642 may not be equal everywhere.

Illustratively, the orthographic projection of the first magnet 641 is trapezoidal in shape in a plane parallel to the first direction and parallel to the second direction. In particular, when the spacing between the first magnet 641 and the second magnet 642 is everywhere equal, the orthographic projection of the first magnet 641 is right trapezoid in a plane parallel to the first direction and parallel to the second direction, with the right angle side of the right trapezoid adjacent to the second magnet 641. The device is simple in structure. The thickness of the first magnet 641 is gradually changed (gradually increased or gradually decreased) along the second direction so as to facilitate the gradual adjustment of the pressing feeling of the key 61 when the user drives the key 61 to move in the second direction relative to the housing 20. It is to be understood that the shape of the orthographic projection of the first magnet 641 in a plane parallel to the first direction and parallel to the second direction is not limited to a trapezoid but may be a triangle. Still further exemplary, referring to fig. 12, fig. 12 is a schematic cross-sectional structure of an electronic device 100 according to other further embodiments of the present application, wherein a surface of the first magnet 641 remote from the second magnet 642 is formed as a stepped surface such that the first magnet 641 is not uniformly thick in the second direction.

Optionally, during the movement of the key 61 in the second direction relative to the housing 20, the orthographic projection of the second magnet 642 on the reference plane a is always located within the outline of the orthographic projection of the first magnet 641 on the reference plane a, so that the area size of the overlapping area b is always kept unchanged. Thus, the influence of the size of the overlapped area on the magnetic repulsive force between the first magnet 641 and the second magnet 642 can be ignored, and it is advantageous to adjust the magnetic repulsive force between the first magnet 641 and the second magnet 642 with a single variable or less, that is, it is advantageous to change the size of the magnetic repulsive force of the first magnet 641 and the second magnet 642 corresponding to the overlapped area b by only depending on the variable of the thickness of the first magnet 641, thereby facilitating the assembly operation of the first magnet 641 and the second magnet 642 without considering the assembly problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, the present application is not limited thereto, and in other examples, the area size of the overlapped area b may be changed during the movement of the key 61 in the second direction with respect to the housing 20, so that the adjustment range of the magnetic repulsive force between the second magnet 642 and the first magnet 641 may be increased by the combined action of the area size of the overlapped area b and the thickness change of the first magnet 641.

Referring to fig. 13, fig. 13 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 11 in that the spacing between the first magnet 641 and the second magnet 642 is not everywhere equal. Specifically, in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the first magnet 641 is in a non-right trapezoid shape, that is, both surfaces of the first magnet 641 in the first direction extend obliquely toward and away from each other along the second direction. Illustratively, the orthographic projection of the first magnet 641 is isosceles trapezoid in a plane parallel to the first direction and parallel to the second direction. In this way, when the user-actuated key 61 is moved in the second direction with respect to the housing 20, adjustment of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlap region b can be achieved by the combined action of the different-sized spaces between the first magnet 641 and the second magnet 642 where the overlap region b is located at the different-thickness regions of the first magnet 641. Of course, the present application is not limited thereto, and the surface of the first magnet 641 facing the second magnet 642 may also be formed as a stepped surface.

It will be appreciated that in other examples, the spacing between the first magnet 641 and the second magnet 642 is not everywhere equal in the second direction, and that in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the first magnet 641 is in the shape of a right trapezoid with the right angle side of the right angle trapezoid facing away from the second magnet 642.

Referring to fig. 14, fig. 14 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 6-8 in that: the second magnet 642 is not equally thick in the second direction. Illustratively, the thickness of the second magnet 642 is not equal everywhere. Also exemplary, the second magnet 642 is not equally thick in the second direction and is equally thick in the third direction. The key 61 is moved in the second direction with respect to the housing 20 such that the overlap region b corresponds to a region of different thickness of the second magnet 642. That is, during the movement of the key 61 in the second direction relative to the housing 20, the different thickness regions of the second magnet 642 may be respectively opposite to the first magnet 641 in the first direction to form different overlapped regions b. It can be appreciated that the magnetic field strength of the second magnet 642 at the different thickness regions is different among the second magnets 642, so that the magnitude of the magnetic repulsive force at the overlapped region b formed between the second magnet 642 and the first magnet 641 at the different thickness regions is different. The magnetic repulsive force at the overlapped region b formed between the region of the second magnet 642 having a larger thickness and the first magnet 641 is larger, and the magnetic repulsive force at the overlapped region b formed between the region of the second magnet 642 having a smaller thickness and the first magnet 641 is smaller. Accordingly, the user can adjust the size of the magnetic repulsive force between the second magnet 642 and the first magnet 641 corresponding to the overlapping region b by driving the key 61 to move in the second direction with respect to the housing 20 such that the overlapping region b is located at the different thickness region of the second magnet 642.

In particular, the spacing between the second magnet 642 and the first magnet 641 is everywhere equal. In this configuration, the influence of the change in the gap on the magnetic repulsive force between the second magnet 642 and the first magnet 641 can be ignored, and it is advantageous to adjust the magnetic repulsive force between the second magnet 642 and the first magnet 641 with a single variable or less, that is, it is advantageous to change the magnitudes of the magnetic repulsive forces of the second magnet 642 and the first magnet 641 corresponding to the overlapping region b by only the variable of the thickness of the second magnet 642, thereby facilitating the simplification of the assembly operation of the second magnet 642 and the first magnet 641 without considering the assembly problem caused by other variables, and at the same time, it is advantageous to improve the reliability of the operation of the driving part 64. Of course, it is understood that the spacing between the second magnet 642 and the first magnet 641 may not be equal everywhere.

Illustratively, the orthographic projection of the second magnet 642 is trapezoidal in shape in a plane parallel to the first direction and parallel to the second direction. Specifically, when the intervals between the first magnet 641 and the second magnet 642 are equal everywhere, in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the second magnet 642 is right trapezoid with right angle sides adjacent to the first magnet 641. The device is simple in structure. The thickness of the second magnet 642 is gradually changed (gradually increased or gradually decreased) along the second direction, thereby facilitating the gradual adjustment of the pressing feeling of the key 61 when the user drives the key 61 to move in the second direction relative to the housing 20. It is understood that the shape of the orthographic projection of the second magnet 642 in a plane parallel to the first direction and parallel to the second direction is not limited to a trapezoid, but may be a triangle. Still further exemplary, referring to fig. 15, fig. 15 is a schematic cross-sectional structure of an electronic device 100 according to still other embodiments of the present application, wherein a surface of the second magnet 642 remote from the first magnet 641 is formed as a stepped surface such that the second magnet 642 is not uniformly thick in the second direction.

Optionally, during the movement of the key 61 in the second direction relative to the housing 20, the orthographic projection of the first magnet 641 on the reference plane a is always located within the outline of the orthographic projection of the second magnet 642 on the reference plane a, so that the area size of the overlapping area b is always kept unchanged. So configured, the influence of the size of the overlapping area on the magnetic repulsive force between the second magnet 642 and the first magnet 641 can be ignored, which is advantageous in that the magnetic repulsive force between the second magnet 642 and the first magnet 641 is adjusted with a single variable or less, that is, in that the change of the size of the magnetic repulsive force at the overlapping area b of the second magnet 642 and the first magnet 641 is realized by only depending on the change of the thickness of the second magnet 642, thereby facilitating the assembly operation of the second magnet 642 and the first magnet 641 without considering the assembly problem caused by other variables, and in that the reliability of the operation of the driving part 64 is improved. Of course, the present application is not limited thereto, and in other examples, the area size of the overlapped area b may be changed during the movement of the key 61 in the second direction with respect to the housing 20, so that the combined action of the area size of the overlapped area b and the thickness change of the second magnet 642 may be used to adjust the size of the magnetic repulsive force between the first magnet 641 and the second magnet 642 corresponding to the overlapped area b to increase the adjustment range of the magnetic repulsive force.

Referring to fig. 16, fig. 16 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 14 in that the spacing between the second magnet 642 and the first magnet 641 is not everywhere equal. Specifically, in a plane parallel to the first direction and parallel to the second direction, the orthographic projection of the second magnet 642 is in a non-right trapezoid shape, that is, two surfaces of the second magnet 642 in the first direction extend obliquely toward and away from each other along the second direction. Illustratively, the orthographic projection of the second magnet 642 is in the shape of an isosceles trapezoid in a plane parallel to the first direction and parallel to the second direction. In this way, when the user-actuated key 61 is moved in the second direction with respect to the housing 20, adjustment of the magnetic repulsive force between the second magnet 642 and the first magnet 641 corresponding to the overlap region b can be achieved by the cooperation of the overlapping region b being located at the different-sized interval between the second magnet 642 and the first magnet 641 and the overlapping region b being located at the different-thickness region of the second magnet 642. Of course, the present application is not limited thereto, and the surface of the second magnet 642 facing the first magnet 641 may also be formed as a stepped surface.

It will be appreciated that in other examples, the orthographic projection of the second magnet 642 is in a right trapezoid in a plane parallel to the first direction and parallel to the second direction with the right waist edge of the right trapezoid facing away from the first magnet 641.

Referring to fig. 17, fig. 17 is a schematic structural diagram of an electronic device 100 according to other embodiments of the present application. In the electronic apparatus 100 of this embodiment, the unequal thickness structure of the first magnet 641 of any of fig. 11 to 13 is incorporated, while the unequal thickness structure of the second magnet 642 of any of fig. 14 to 16 is incorporated. Illustratively, the spacing between the first magnet 641 and the second magnet 642 is equal everywhere, in a plane parallel to the first direction and parallel to the second direction, the orthographic projections of the first magnet 641 and the second magnet 642 are each right trapezoid with right angle sides of the two right angle trapezoids facing each other.

Referring to fig. 18, fig. 18 is a schematic structural diagram of an electronic device 100 according to other embodiments of the present application. The present application is different from the embodiment shown in fig. 6-8 in that the first magnet 641 includes a plurality of first magnet portions 6411 arranged along a first direction, and the plurality of first magnet portions 6411 are respectively made of different materials, such that the plurality of first magnet portions 6411 have different magnetic field strengths. When the user-actuated key 61 is moved in the second direction relative to the housing 20, the overlap region b may be located at a different first magnet portion 6411. Therefore, the magnetic repulsive force formed by the first magnet 6411 and the second magnet 642 made of different materials is different, so that the purpose of adjusting the magnetic repulsive force between the first magnet 641 and the second magnet 642 is achieved.

In some examples, the shape and size of the plurality of first magnet portions 6411 are the same. Exemplary shapes of the first magnet portion 6411 include, but are not limited to, a cube shape or a prism shape. Specifically, the second magnet 642 may be the same shape and size as the first magnet portion 6411. This arrangement is advantageous in improving the reliability of the engagement of the second magnet 642 with the first magnet portion 6411. Of course, in other examples, at least two first magnet portions 6411 of the plurality of first magnet portions 6411 may differ in shape and/or size. For example, the material of the second magnet 642 may be the same as that of one of the first magnet portions 6411, and of course, the material of the second magnet 642 may also be different from that of each of the first magnet portions 6411. Specifically, the connection manner between two adjacent first magnet portions 6411 includes, but is not limited to, gluing, clamping, or screwing.

For example, the first magnet 6411 may be selected from neodymium-iron-boron magnet, samarium-cobalt magnet, alnico magnet, or ferrite magnet, so long as different materials of the first magnet 6411 are ensured.

Referring to fig. 19, fig. 19 is a schematic structural diagram of an electronic device 100 according to other embodiments of the present application. The present application is different from the embodiment shown in fig. 6-8 in that the second magnet 642 includes a plurality of second magnet portions 6421 arranged along the first direction, and the plurality of second magnet portions 6421 are respectively made of different materials, such that the plurality of second magnet portions 6421 have different magnetic field strengths. When the user-actuated key 61 is moved in the second direction relative to the housing 20, the overlap region b may be located at a different second magnet portion 6421. Therefore, the magnetic repulsive force between the second magnet 642 and the first magnet 641 is adjusted by selecting the second magnet 6421 with different materials to be different from the magnetic repulsive force formed by the first magnet 641.

In some examples, the plurality of second magnet portions 6421 are all the same shape and size. Specifically, the first magnet 641 may be the same shape and size as the second magnet 6421. This arrangement is advantageous in improving the reliability of the engagement of the first magnet 641 with the second magnet 6421. Of course, in other examples, at least two of the plurality of second magnet portions 6421 may differ in shape and/or size. For example, the material of the first magnet 641 may be the same as that of one of the second magnet portions 6421, and of course, the material of the first magnet 641 may be different from that of each of the second magnet portions 6421. Specifically, the connection manner between two adjacent second magnet portions 6421 includes, but is not limited to, gluing, clamping, or screw connection.

The second magnet 6421 may be exemplified by neodymium iron boron magnet, samarium cobalt magnet, alnico magnet, or ferrite magnet, as long as the different materials of the second magnet 6421 are ensured to be different.

It will be appreciated by those skilled in the art after reading the embodiments shown in fig. 6-19 that the driving member 64 of the above embodiments is modified from the concept of "adjusting the size of the overlapping region b between the first magnet 641 and the second magnet 642", "such that the overlapping region b is located at a different sized spacing between the first magnet 641 and the second magnet 642", "the overlapping region b corresponds to a different thickness region of the first magnet 641 and/or the second magnet 642 in the second direction", and "the overlapping region b corresponds to a different material portion of the first magnet 641 or the second magnet 642", any two, three, or four of which may be combined without departing from the concept of "adjusting the force applied to the key 61 by the driving member 64 by moving the driving key 61 relative to the housing 20 in the second direction", and any two, three, or four of which may also fall within the scope of protection of the present application.

Referring to fig. 20, fig. 20 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 6-8 in that the drive member 64 is a spring. The surface of the second segment 6122 facing the groove bottom wall 22b2 is formed with a slope area 68, and the slope area 68 is disposed obliquely with respect to the reference plane a such that the distance between the slope area 68 and the groove bottom wall 22b2 is gradually changed in the second direction. One end of the spring is connected to the groove bottom wall 22b2 of the mounting groove 22b, and the other end of the spring abuts the inclined surface region 68. Thus, when the user drives the key 61 to move along the second direction relative to the housing 20, a different portion of the inclined surface area 68 in the second direction can be abutted against the spring, so that the compression amount of the spring can be adjusted, and the acting force exerted by the spring on the key 61 can be adjusted. Thus, when the key 61 is located at a different position along the second direction, the acting force required by the user to press the key 61 to trigger the switch element 62 is different, so that the pressing hand feeling of the key 61 is different in the experience of the user, and thus, the user can adjust the pressing hand feeling of the key 61 by driving the key 61 to move to a different position along the second direction according to the actual needs of the user, and the use needs of different users are met. In addition, the setting mode is simple in structure and convenient to operate, and the use experience of a user can be improved.

The connection between the spring and the groove bottom wall 22b2 includes, but is not limited to, a snap fit, a screw connection, welding, or gluing.

In order to prevent the spring from being displaced during the movement of the key 61, the groove bottom wall 22b2 of the mounting groove 22b may be further provided with a limit sleeve 66 surrounding the outer circumference of the spring. The stop sleeve 66 may be annular in shape or square annular in shape. The connection between the limit sleeve 66 and the groove bottom wall 22b2 of the mounting groove 22b includes, but is not limited to, a snap fit, adhesive, welding, or screw connection.

Further, to prevent the spring from interfering with the movement of the key 61 in the second direction and to ensure the reliability of the limiting of the spring by the limiting sleeve 66, the end of the spring adjacent to the second segment 6122 has a fixing seat 67. The fixing seat 67 is cylindrical or cubic. A portion of the fixing seat 67 along the first direction is located in the limit sleeve 66, and the rest of the fixing seat 67 along the first direction is located outside the limit sleeve 66, and the spring abuts against the second section 6122 through the fixing seat 67.

The connection between the spring and the fixing base 67 includes, but is not limited to, clamping, screw connection or welding.

Referring to fig. 21, fig. 21 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 20 in that a bevel region 68 is formed on the groove bottom wall 22b2 such that the spacing between the bevel region 68 and the second segment 6122 is gradual in the second direction. One end of the spring is connected with the second section 6122, the other end of the spring is abutted with the inclined surface area 68 through the fixing seat 67, and the limiting sleeve 66 is arranged on the second section 6122.

Referring to fig. 22-24, fig. 22 is a schematic cross-sectional structure of an electronic device 100 according to other embodiments of the present application, and fig. 23 is a schematic cross-sectional structure of the electronic device 100 at line E-E shown in fig. 22; fig. 24 is a schematic sectional structure at the F-F line according to the electronic device 100 shown in fig. 22. This embodiment differs from any of the above embodiments in that the key module 60 does not include the fixed base 65. The key 61 includes only the pressing plate 611, and the pressing plate 611 is sandwiched by edges of the opening 22b1 of the mounting groove 22b in the third direction, thereby serving to provide a damping force for movement of the key 61 in the second direction, while also preventing the key 61 from being detached from the mounting groove 22 b. In the direction from the opening 22b1 of the mounting groove 22b to the groove bottom wall 22b2 of the mounting groove 22b, the opposite wall surfaces of the mounting groove 22b in the third direction are respectively extended toward directions away from each other, so that the movement of the key 61 in the first direction can be avoided. A trigger lever 653 is provided on the pressing plate 611 for triggering the switching element 62.

In order to further prevent the key 61 from being separated from the mounting groove 22b, both ends of the pressing plate 611 in the third direction are respectively provided with a separation preventing block 611a, the separation preventing block 611a is located in the mounting groove 22b, and during the movement of the key 61 in the first direction, the separation preventing block 611a is spaced apart from the inner circumferential surface of the mounting groove 22b, thereby preventing the separation preventing block 611a from interfering with the movement of the key 61 in the first direction.

The escape prevention block 611a and the pressing plate 611 may be integrally formed. Of course, the present application is not limited thereto, and in other examples, the falling off prevention block 611a and the pressing plate 611 may be connected by means of gluing, welding, clamping, screw connection, or the like.

The escape prevention block 611a may be formed in a cylindrical shape, a cubic shape, or a cone shape.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A key assembly, comprising:

a housing (20), wherein a mounting groove (22 b) is formed in the outer surface of the housing (20), the mounting groove (22 b) is provided with an opening (22 b 1) and a groove bottom wall (22 b 2) opposite to the opening (22 b 1), and the arrangement direction of the opening (22 b 1) and the groove bottom wall (22 b 2) is a first direction;

A key module (60), wherein the key module (60) comprises a key (61), and the key (61) is installed in the installation groove (22 b) and can move in a first direction relative to the shell (20);

-a driving member (64) for normally driving the key (61) in a first direction and away from the bottom wall (22 b 2) of the slot, the key (61) being movable relative to the housing (20) in a second direction perpendicular to the first direction for adjusting the amount of force applied by the driving member (64) to the key (61) in the first direction;

wherein the driving component comprises a first magnet (641) and a second magnet (642), the first magnet (641) is arranged on the key (61), the second magnet (642) is arranged on the bottom wall (22 b 2) of the groove, the magnetizing direction of the second magnet (642) and the magnetizing direction of the first magnet (641) are parallel to the first direction, and the magnetizing direction of the second magnet (642) is opposite to the magnetizing direction of the first magnet (641); or alternatively, the first and second heat exchangers may be,

the driving part is a spring, and the spring is positioned between the bottom wall of the groove and the key; one end of the spring is fixed on the bottom wall of the groove, the other end of the spring is abutted with one end surface of the key (61) adjacent to the bottom wall (22 b 2) of the groove, or one end of the spring is fixed on one end surface of the key (61) adjacent to the bottom wall (22 b 2) of the groove, and the other end of the spring is abutted with the bottom wall of the groove.

2. The key assembly according to claim 1, wherein the driving member (64) comprises: the first magnet (641) and the second magnet (642);

a plane perpendicular to the first direction is defined as a reference plane (a), and an orthographic projection of the first magnet (641) on the reference plane (a) overlaps with an orthographic projection of the second magnet (642) on the reference plane (a) to form an overlapping region (b).

3. The key assembly according to claim 2, wherein the first magnet (641) comprises a plurality of first magnet portions (6411) arranged in the second direction, the plurality of first magnet portions (6411) being made of different materials, respectively, such that the plurality of first magnet portions (6411) have different magnetic field strengths;

the key (61) is moved in a second direction relative to the housing (20) such that the overlap region (b) corresponds to a different one of the first magnet portions (6411).

4. The key assembly according to claim 2, wherein the second magnet (642) comprises a plurality of second magnet portions (6421) arranged in a second direction, the plurality of second magnet portions (6421) being made of different materials, respectively, such that the plurality of second magnet portions (6421) have different magnetic field strengths;

The key (61) is moved in a second direction relative to the housing (20) such that the overlap region (b) corresponds to a different second magnet portion (6421).

5. The key assembly according to any of claims 2-4, wherein in a second direction, the first magnet (641) and the second magnet (642) are not equally spaced;

the key (61) is moved in a second direction relative to the housing (20) such that the overlap region (b) corresponds to a different size of spacing.

6. The key assembly according to claim 5, wherein the first magnet (641) and/or the second magnet (642) are formed in a stepped shape.

7. The key assembly according to any of claims 2-5, wherein the first magnet (641) is not equally thick in the second direction;

the key (61) is moved in a second direction relative to the housing (20) such that the overlap region (b) corresponds to a region of different thickness of the first magnet (641).

8. The key assembly of claim 7, wherein the orthographic projection of the first magnet is trapezoidal in a plane parallel to the first direction and parallel to the second direction; or alternatively, the process may be performed,

A side surface of the first magnet (641) remote from the second magnet (642) is formed as a stepped surface.

9. The key assembly according to any of the claims 2-8, wherein the second magnet (642) is not equally thick in the second direction;

the key (61) is moved in a second direction relative to the housing (20) such that the overlap region (b) corresponds to a region of different thickness of the second magnet (642).

10. The key assembly of claim 9, wherein the orthographic projection of the second magnet is trapezoidal in a plane parallel to the first direction and parallel to the second direction; or alternatively, the process may be performed,

a side surface of the second magnet (642) remote from the first magnet (641) is formed as a stepped surface.

11. The key assembly according to any of the claims 2-10, characterized in that the housing (20) has a receiving hole (22 b 21) at the groove bottom wall (22 b 2), the second magnet (642) being embedded in the receiving hole (22 b 21).

12. The key assembly according to any of the claims 2-11, wherein the key (61) comprises: a pressing plate (611) and a clamping portion (612), wherein the pressing plate (611) is opposite to the tank bottom wall (22 b 2), and the clamping portion (612) is arranged on the surface of the pressing plate (611) facing the tank bottom wall (22 b 2);

Wherein the first magnet (641) is provided at one end of the clamping portion (612) adjacent to the groove bottom wall (22 b 2), or at least part of the clamping portion (612) is configured as the first magnet (641).

13. The key assembly according to claim 1, wherein the driving member (64) is the spring;

when the other end of the spring is abutted against the key, a bevel area (68) is formed on one end surface of the key (61) adjacent to the groove bottom wall (22 b 2), and the distance between the groove bottom wall (22 b 2) and the bevel area (68) is gradually changed in a second direction;

when the other end of the spring is abutted against the groove bottom wall, a bevel area (68) is formed on the groove bottom wall, and the distance between the surface of one end of the key (61) adjacent to the groove bottom wall (22 b 2) and the bevel area (68) is gradually changed in the second direction;

the key (61) is moved in a second direction relative to the housing (20) such that a different portion of the ramp region (68) in the second direction abuts the spring.

14. The key assembly according to claim 13, wherein a limit sleeve (66) is provided on the groove bottom wall (22 b 2) when the other end of the spring abuts against the key;

When the other end of the spring is abutted with the groove bottom wall, a limiting sleeve (66) is arranged on the surface of one end, adjacent to the groove bottom wall (22 b 2), of the key (61);

the limit sleeve (66) surrounds the outer periphery of the spring.

15. The key assembly according to claim 14, wherein an end of the spring adjacent to the bevel area (68) has a fixing seat (67), a portion of the fixing seat (67) along a first direction being located inside the limit sleeve (66), and the remaining portion of the fixing seat (67) along the first direction being located outside the limit sleeve (66) and abutting against the bevel area (68).

16. The key assembly according to any of the claims 1-15, wherein the key module (60) comprises a stationary base (65);

the fixed base (65) is arranged in the mounting groove (22 b), the key (61) is fixed on the fixed base (65), the fixed base (65) and the shell (20) are relatively fixed in a second direction, the fixed base (65) and the key (61) synchronously move along a first direction, and the key (61) is movable relative to the fixed base (65) in the second direction;

the key (61) comprises a pressing plate (611), wherein the pressing plate (611) is opposite to the groove bottom wall (22 b 2) and is positioned on one side of the fixed base (65) which is away from the groove bottom wall (22 b 2).

17. The key assembly according to claim 16, wherein the fixing base (65) comprises a fixing plate (651), the fixing plate (651) being located between the pressing plate (611) and the groove bottom wall (22 b 2), the fixing plate (651) having a clamping hole (6511) formed therein;

the key (61) further comprises a clamping portion (612), the clamping portion (612) is arranged on the surface, facing the groove bottom wall (22 b 2), of the pressing plate (611), the clamping portion (612) is matched with the clamping hole (6511) in a clamping mode, and the size of the clamping hole (6511) along the second direction is larger than that of a part, located in the clamping hole (6511), of the clamping portion (612) along the second direction.

18. The key assembly according to claim 17, wherein the circumferentially extending track of the fixing plate (651) is identical to the circumferentially extending track of the mounting groove (22 b) to fit the mounting groove (22 b).

19. The key assembly according to claim 17 or 18, wherein the key module (60) further comprises a damping structure for providing a damping force for a movement of the key (61) in the second direction relative to the stationary base (65).

20. The key assembly of claim 19, wherein the clamping portion (612) comprises a first section (6121) and a second section (6122);

One end of the first section (6121) is connected with the surface of the pressing plate (611) facing the groove bottom wall (22 b 2), the first section (6121) penetrates through the clamping hole (6511), and the other end of the first section (6121) is positioned on one side, adjacent to the groove bottom wall (22 b 2), of the fixing plate (651);

the second section (6122) is connected with the other end of the first section (6121), and the second section (6122) extends along a second direction and is opposite to the pressing plate (611) so as to define an engaging space (61 b);

the opposing wall surfaces of the engaging space (61 b) in the first direction define the damping structure such that a portion of the fixing plate (651) is sandwiched by the opposing wall surfaces of the engaging space (61 b) in the first direction.

21. The key assembly according to any one of claims 17 to 20, wherein limiting grooves (22 b 3) are formed on both side groove walls of the mounting groove (22 b) along the second direction, respectively, the fixing base (65) comprises two limiting tongues (652), the limiting tongues (652) are connected with the fixing plate (651), the two limiting tongues (652) are opposite and spaced apart in the second direction, and the two limiting tongues (652) are in one-to-one correspondence with the two limiting grooves (22 b 3);

The size of the limit groove (22 b 3) in the first direction is larger than the size of the part of the limit tongue (652) located in the limit groove (22 b 3) in the first direction;

the driving part (64) always drives the whole of the key (61) and the fixed base (65) to move along a first direction and away from the bottom wall (22 b 2) of the groove until the limit tongue (652) is abutted against the groove wall of the limit groove (22 b 3) on one side away from the inside of the shell (20).

22. An electronic device (100), characterized by comprising: the key assembly according to any of claims 1-21.