CN115394592B - Key modules and electronic devices - Google Patents
Key modules and electronic devices Download PDFInfo
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- CN115394592B CN115394592B CN202210727806.5A CN202210727806A CN115394592B CN 115394592 B CN115394592 B CN 115394592B CN 202210727806 A CN202210727806 A CN 202210727806A CN 115394592 B CN115394592 B CN 115394592B
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- cantilever
- pressing
- accommodating cavity
- key module
- pressure sensing
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/20—Driving mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
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- Push-Button Switches (AREA)
Abstract
本申请公开了一种按键模组和电子设备，按键模组包括主体、支架和压杆组件，主体包括容纳腔以及位于容纳腔一侧的按压部；支架设于容纳腔内，支架包括连接部和悬臂部，连接部与悬臂部连接，连接部与容纳腔的至少一个内壁连接；悬臂部通过连接部悬设于容纳腔内，且在按压部被按压的情况下，悬臂部发生变形；压感组件设于悬臂部上，用于感测悬臂部的形变。本申请通过悬空的悬臂部作为压感组件的支撑部件，在按压部被按压时，悬臂部发生变形，应力相对分散，从而使得压感组件感测悬臂部的形变时，受力更均匀，可以有效避免压感组件的感应层受力变形过程中裂纹的产生。同时，悬空结构设计使得压感组件感测到的形变更明显，压感信号量更强。
The present application discloses a key module and an electronic device, wherein the key module comprises a main body, a bracket and a pressure rod assembly, wherein the main body comprises a receiving cavity and a pressing portion located on one side of the receiving cavity; the bracket is arranged in the receiving cavity, and the bracket comprises a connecting portion and a cantilever portion, wherein the connecting portion is connected to the cantilever portion, and the connecting portion is connected to at least one inner wall of the receiving cavity; the cantilever portion is suspended in the receiving cavity through the connecting portion, and when the pressing portion is pressed, the cantilever portion is deformed; the pressure sensing assembly is arranged on the cantilever portion, and is used to sense the deformation of the cantilever portion. The present application uses a suspended cantilever portion as a supporting component of the pressure sensing assembly, and when the pressing portion is pressed, the cantilever portion is deformed, and the stress is relatively dispersed, so that when the pressure sensing assembly senses the deformation of the cantilever portion, the force is more uniform, and the generation of cracks in the process of force deformation of the sensing layer of the pressure sensing assembly can be effectively avoided. At the same time, the suspended structure design makes the deformation sensed by the pressure sensing assembly more obvious, and the pressure sensing signal is stronger.
Description
Technical Field
The application belongs to the technical field of electronic equipment, and particularly relates to a key module and electronic equipment.
Background
Along with the rapid development of intelligent devices, users have higher and higher experience requirements when using electronic devices, and often require that virtual key modules are arranged under a display screen of the electronic devices so as to increase the operability of the electronic devices. In the related art, after the sensing layer in the pressure sensing component of the key module is pressed, cracks are easy to appear, so that the key module is invalid. Therefore, the reliability of the existing key module is lower.
Disclosure of Invention
The application aims to provide a key module and electronic equipment, which at least solve the problem of lower reliability of the key module.
In order to solve the technical problems, the application is realized as follows:
The embodiment of the application provides a key module, which comprises:
a main body including a receiving chamber, and a pressing part at one side of the receiving chamber;
The bracket is arranged in the accommodating cavity and comprises a connecting part and a cantilever part, the connecting part is connected with the cantilever part, and the connecting part is connected with at least one inner wall of the accommodating cavity; the cantilever part is suspended in the accommodating cavity through the connecting part, and the cantilever part is deformed under the condition that the pressing part is pressed;
And the pressure sensing assembly is arranged on the cantilever part and is used for sensing the deformation of the cantilever part.
The embodiment of the application also provides electronic equipment, which comprises the key module.
In the embodiment of the application, the cantilever part of the bracket is suspended in the accommodating cavity of the main body, the pressure sensing component is arranged in the accommodating cavity under the support of the cantilever part, and when the pressing part of the main body is pressed, the cantilever part can deform under the action of the pressing force, so that the pressure sensing component can sense the deformation of the cantilever part. Through unsettled cantilever part as the supporting part of pressure sensing subassembly, when pressing the portion by pressing, cantilever part takes place to warp, and the stress is dispersed relatively to when making the deformation of pressure sensing subassembly sensing cantilever part, the atress is more even, can effectively avoid the induction layer atress deformation in-process crack of pressure sensing subassembly to produce, simultaneously, unsettled structural design makes the deformation that pressure sensing subassembly sensed more obvious, and pressure sensing semaphore is stronger, consequently, has effectively improved the reliability of button module.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a pressure sensing component according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a key module according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the structure of the deformed frame of the key module in FIG. 2;
FIG. 4 is a second schematic diagram of a key module according to an embodiment of the present application;
FIG. 5 is a third schematic diagram of a key module according to an embodiment of the present application;
FIG. 6 is an enlarged view of portion A, circled in FIG. 5;
FIG. 7 is a schematic diagram of a key module according to an embodiment of the present application;
FIG. 8 is a schematic diagram of the structure of the deformed frame of the key module in FIG. 7;
FIG. 9 is a schematic diagram illustrating a positional relationship between a pressure sensing element and a cantilever portion according to an embodiment of the present application.
Reference numerals:
101. 102, bonding pads, 103, an induction layer, 104, a conductive part, 105 and an insulating layer;
1. the device comprises a main body, a containing cavity, 111, a limiting groove, 12, a pressing part, 13, a pressing piece, 14, a supporting block, 15 and a limiting block;
2. 21 parts of brackets, 22 parts of cantilevers, 221 parts of connecting parts, 221 parts of pressure surfaces, 23 parts of limiting parts;
3. and a pressure sensing component.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, the pressure sensing component 3 may include a flexible circuit board 101, at least two pads 102, a sensing layer 103, a conductive portion 104, and an insulating layer 105. At least two pads 102 are provided on the flexible wiring board 101 at intervals, and a sensing layer 103 is printed between the at least two pads 102. The conductive portion 104 is connected to the sensing layer 103 and the pad 102, and is used for realizing electrical conduction between the sensing layer 103 and the pad 102. An insulating layer 105 with protection and insulation functions is printed on the surface of the sensing layer 103.
In order to increase the signal amount of the pressure sensitive component 3, in the related art, a separate steel reinforcement is generally used as a supporting member of the pressure sensitive component 3, and for example, the separate steel reinforcement is pressed on a side of the flexible circuit board away from the sensing layer 103 by a thermosetting adhesive, and the sensing layer 103 is located at a gap of the separate steel reinforcement. And then the separated steel reinforcement and pressure sensing component 3 is fixed on the surface of a display screen or a middle frame of the electronic equipment through an adhesive material. In this way, in the event that the user presses the display of the electronic device, the sensing layer 103 may deform at the gap, thereby generating a pressure-sensitive signal.
However, the inventor found that since the pressure sensitive material of the sensing layer 103 has a brittle nature, the supporting strength of the gap area of the separated steel reinforcement is poor during the stress process, and a sharp corner exists at the edge of the gap, the area belongs to a stress concentration area, and during the reverse folding of the flexible circuit board 101 or the lamination, test, transfer and assembly process of the separated steel reinforcement, the sensing layer 103 is easy to crack, so that the pressure sensitive component 3 is invalid, and the normal function of the pressure sensitive component cannot be realized.
Based on the technical problems, the embodiment of the application provides a key module with higher reliability and electronic equipment. The key module according to the embodiment of the application is first described with reference to fig. 2 to 9.
Referring to fig. 2, an embodiment of the present application provides a key module, which includes a main body 1, a bracket 2 and a pressure sensing component 3. The body 1 may include a receiving chamber 11, a pressing part 12 at one side of the receiving chamber 11, a bracket 2 provided in the receiving chamber 11, the bracket 2 including a cantilever part 21 and a connection part 22, the connection part 22 being connected with the cantilever part 21, the connection part 22 being connected with at least one inner wall of the receiving chamber 11, the cantilever part 21 being suspended in the receiving chamber 11 by the connection part 22 and the cantilever part 21 being deformed when the pressing part 12 is pressed, and a pressure sensing assembly 3 provided on the cantilever part 21 for sensing deformation of the cantilever part 21.
The material of the bracket 2 may be a deformable material such as metal, plastic, etc. The structure of the pressure sensing component 3 may include the flexible circuit board 101, at least two pads 102, the sensing layer 103, the conductive portion 104 and the insulating layer 105 as described above, and will not be described herein.
As shown in fig. 2, the main body 1 may be provided with a receiving cavity 11 for mounting the pressure sensing component 3, and the pressure sensing component 3 may be mounted in the receiving cavity 11 through the bracket 2. Illustratively, the bracket 2 may include a cantilever portion 21 and a connection portion 22, the cantilever portion 21 being connected with the connection portion 22, and the connection portion 22 being connected with at least one inner wall of the accommodating chamber 11 such that the cantilever portion 21 is suspended within the accommodating chamber 11. The pressure sensing assembly 3 is provided on the cantilever portion 21 and may be used to sense deformation of the cantilever portion 21.
As shown in fig. 3, the main body 1 may further include a pressing portion 12 located at one side of the accommodating cavity 11, and the cantilever portion 21 may be deformed by the pressing force when the pressing portion 12 is pressed, so that the pressure sensing assembly provided on the cantilever portion 21 may sense the deformation of the cantilever portion 21. Illustratively, the sensing layer 103 in the pressure sensing component 3 may generate a change in resistance based on the sensed deformation of the cantilever portion 21 and convert it into a pressure sensing signal, thereby realizing the function detection of the key module.
In the embodiment of the application, the cantilever portion 21 of the bracket 2 is suspended in the accommodating cavity 11 of the main body 1, the pressure sensing assembly 3 is arranged in the accommodating cavity 11 under the support of the cantilever portion 21, and when the pressing portion 12 of the main body 1 is pressed, the cantilever portion 21 can deform under the action of the pressing force, so that the pressure sensing assembly 3 can sense the deformation of the cantilever portion 21. Through unsettled cantilever part 21 as the supporting component of pressure sensing subassembly 3, when pressing part 12 was pressed, cantilever part 21 takes place to warp, the stress is dispersed relatively to when making the deformation of pressure sensing subassembly 3 sensing cantilever part 21, the atress is more even, can effectively avoid the induction layer 103 atress deformation in-process crack of pressure sensing subassembly 3 to produce, simultaneously, unsettled structural design makes the deformation that pressure sensing subassembly 3 sensed more obvious, and pressure sensing semaphore is stronger, consequently, effectively improved the reliability of button module.
Alternatively, in some embodiments, the cantilever portion 21 may have a pressure receiving surface that abuts the pressing portion 12, and the pressure receiving surface moves to deform the cantilever portion 21 in a case where the pressing portion 12 is pressed. For example, one end of the cantilever portion 21 may be connected to the inner wall of the accommodating cavity 11 through the connecting portion 22, and the other end of the cantilever portion 21 may extend to form a pressed surface, where the pressed surface abuts against the pressing portion 12, so that, when the pressing portion 12 is pressed, the pressed surface moves under the driving of the pressing portion 12, so that the cantilever portion 21 deforms, and the deformation of the cantilever portion 21 may be sensed by the pressure sensing assembly 3, so as to implement the function corresponding to the key module.
Alternatively, as shown in fig. 2, in some embodiments, an end of the cantilever portion 21 near the pressing portion 12 may be fixed to an inner wall of the accommodating cavity 11 through a connecting portion 22, the connecting portion 22 has a pressing surface 221, the pressing surface 221 abuts against the pressing portion 12, and when the pressing portion 12 is pressed, the pressing surface 221 moves to deform the cantilever portion 21.
It is understood that the cantilever portion 21 may be connected to the inner wall of the receiving chamber 11 on the side where the pressing portion 12 is located by the connecting portion 22. And the surface of the connection portion 22 abutting against the pressing portion 12 is a pressure receiving surface 221. Under the condition that the pressing part 12 is pressed, the pressed surface 221 moves under the driving of the pressing part 12, so that the connecting part 22 drives the cantilever part 21 to deform, and the deformation of the cantilever part 21 can be sensed by the pressure sensing assembly 3, so that the corresponding function of the key module is realized.
Alternatively, as shown in fig. 2 and 3, in some embodiments, two ends of the cantilever portion 21 are fixed to the inner wall of the accommodating cavity 11 through the connection portions 22, respectively, one end of the cantilever portion 21 is disposed near the pressing portion 12, the other end of the cantilever portion 21 is disposed away from the pressing portion 12, and the pressure sensing assembly 3 is disposed at a suspended portion of the cantilever portion 21.
Referring to fig. 2 and3, in the present embodiment, two ends of the cantilever portion 21 are respectively connected to the connecting portion 22, and the connecting portion 22 at one end can be connected to the inner wall of the accommodating cavity 11 on the side where the pressing portion 12 is located, and the connecting portion 22 at the other end can be connected to the inner wall of the accommodating cavity 11 far from the pressing portion 12, so as to ensure the installation firmness of the cantilever portion 21 in the accommodating cavity 11. The pressure sensing component 3 can be arranged at the suspension part of the cantilever part 21, and under the condition that the pressing part 12 is pressed, the deformation amount of the suspension part of the cantilever part 21 is more obvious, so that the deformation signal amount of the cantilever part 21 sensed by the pressure sensing component 3 is stronger, and the reliability of the pressure sensing component 3 can be further improved.
Optionally, in some embodiments, a limiting groove 111 is formed on an inner wall of the accommodating cavity 11, and at least part of the connecting portion 22 is embedded in the limiting groove 111 to connect.
As shown in fig. 4, the connection portion 22 may be at least partially embedded in the limit groove 111 of the inner wall of the accommodating cavity 11, so as to connect the connection portion 22 with the inner wall of the accommodating cavity 11, thereby suspending the cantilever portion 21 in the accommodating cavity 11. When the bracket 2 is installed in the accommodating cavity 11, the bracket 2 can be placed in the accommodating cavity 11 with proper force, so that at least part of the connecting part 22 is embedded in the limiting groove 111, the purpose of fixing the bracket 2 in the accommodating cavity 11 is achieved, and the whole structure is simpler and quicker to assemble.
Optionally, in some embodiments, the bracket 2 further includes a limiting portion 23, where the limiting portion 23 is disposed on one side of the connecting portion 22, and the limiting portion 23 abuts against an inner wall of the accommodating cavity 11, where the limiting groove 111 is formed, to limit the position of the connecting portion 22 when the connecting portion 22 is fixed in the limiting groove 111.
As shown in fig. 4, in the present embodiment, the bracket 2 may further include a limiting portion 23, and the limiting portion 23 may be provided at the connecting portion 22 or at a position where the cantilever portion 21 is connected to the connecting portion 22. For example, when the portion of the connecting portion 22 is embedded in the limiting groove 111, the limiting portion 23 may be disposed on the connecting portion 22, and when the connecting portion 22 is completely embedded in the limiting groove 111, the limiting portion 23 may be disposed at a position of the cantilever portion 21 connected to the connecting portion 22, so that the limiting portion 23 may abut against an inner wall of the accommodating cavity 11, in which the limiting groove 111 is formed, to achieve the purpose of limiting displacement of the connecting portion 22 in the limiting groove 111.
It can be understood that, when the pressing portion 12 is pressed, if the connecting portion 22 is displaced in the limiting groove 111, the deformation of the cantilever portion 21 is affected, so that the signal strength sensed by the pressure sensing component 3 is weaker. Based on this, the stopper 23 can apply the pressing force received by the pressing portion 12 to the cantilever portion 21 to a greater extent while fixing the holder 2 in the accommodating chamber 11, so that the cantilever portion 21 is deformed by a greater amount under the same pressing force, thereby effectively improving the signal intensity of the pressure-sensitive element 3.
Optionally, in some embodiments, the pressing portion 12 of the accommodating cavity 11 is provided with a limiting groove 111, the bottom of the accommodating cavity 11 opposite to the pressing portion 12 is also provided with a limiting groove 111, the limiting groove 111 extends along a direction parallel to the pressing portion 12, and the connecting portions 22 at two ends of the bracket 2 are respectively embedded in the limiting groove 111 of the pressing portion and the limiting groove 111 at the bottom;
Or (b)
Limiting grooves 111 are formed in the first side wall and the second side wall, adjacent to the pressing portion 12, in the accommodating cavity 11, limiting grooves 111 are formed in the first side wall and the second side wall, the first side wall is opposite to the second side wall, one end, close to the pressing portion 12, of the cantilever portion 21 is connected with the limiting grooves 111 formed in the first side wall through a first connecting portion, the other end, far away from the pressing portion 12, of the cantilever portion 21 is connected with the limiting grooves 111 formed in the second side wall through a second connecting portion, limiting portions 23 are formed by protruding the surfaces of the first connecting portion and the second connecting portion, and when the support 2 is arranged on the main body 1, the limiting portions 23 of the first connecting portion are in butt joint with the first side wall, and the limiting portions 23 of the second connecting portion are in butt joint with the second side wall.
In the present embodiment, as shown in fig. 5 and 6, the pressing portion 12 may be located at the top of the accommodating chamber 11, and thus, the top and bottom of the accommodating chamber 11 may be provided with the limit grooves 111, respectively, and the limit grooves 111 extend in a direction parallel to the pressing portion 12. The connecting parts at two ends of the bracket 2 can be embedded in the limit grooves 111 in a one-to-one correspondence manner, and under the condition that the pressing part 12 is pressed, the connecting parts 22 embedded in the pressing part 12 can move, so as to drive the cantilever part 21 to deform.
As shown in fig. 4, the limit groove 111 may also be provided on two opposite side walls of the accommodating chamber 11, which are adjacent to the pressing portion 12. The two ends of the cantilever part 21 are respectively embedded into the limit grooves 111 on the two side walls through the connecting parts 22, so as to be suspended in the accommodating cavity 11, and one end of the cantilever part 21 is close to the pressing part 12, and the other end is far away from the pressing part 12. The surface of each of the connecting portions 22 at two ends of the support 2 can be protruded to form a limiting portion, and the limiting portions of the connecting portions 22 at two ends of the support 2 can be respectively abutted with the two side walls under the condition that the support 2 is arranged on the main body 1.
Like this, the both ends of support 2 can be firmly blocked by spacing recess 111, and whole structure assembly is simple and effectively guaranteed the installation intensity of support 2.
Alternatively, referring to fig. 7 and 8, in some embodiments, a fixed end of the cantilever portion 21 is connected to the main body 1, a pressing member 13 is disposed between a free end of the cantilever portion 21 and the pressing portion 12, the fixed end of the pressing member 13 is connected to the pressing portion 12, the free end of the pressing member 13 is opposite to the free end of the cantilever portion 21, the pressure sensing assembly 3 is disposed between the fixed end of the cantilever portion 21 and the free end of the cantilever portion 21, and when the pressing portion 12 is pressed, the free end of the pressing member 13 abuts against the free end of the cantilever portion 21 and drives the free end of the cantilever portion 21 to move, so that the cantilever portion 21 is deformed.
As shown in fig. 7 and 8, the fixed end of the cantilever portion 21 may be fixed to the inner wall of the accommodating chamber 11, and the free end of the cantilever portion 21 is suspended from contact with the accommodating chamber 11. The pressure sensing component 3 is arranged between the fixed end of the cantilever part 21 and the free end of the cantilever part 21, and the cantilever part 21 is not deformed under the condition of no stress. The holding chamber 11 is provided with the presser 13, and the stiff end of presser 13 is connected with pressing part 12, and the free end of presser 13 is relative with the free end of cantilever part 21, and under the condition that pressing part 12 is pressed, the free end of presser 13 can be in contact with the free end of cantilever part 21 to drive cantilever part 21's free end to remove, make cantilever part 21 take place the deformation. In this way, since the free end of the cantilever portion 21 is suspended in the accommodating cavity 11 completely, the force required for deformation is smaller, in other words, when the pressing piece 13 abuts against the free end of the cantilever portion 21 under the action of the pressing force, the pressing piece 13 can drive the free end of the cantilever portion 21 to move, so that the cantilever portion 21 is deformed, the deformation amount of the cantilever portion 21 is effectively improved, and the signal intensity of the pressure sensing assembly 3 is further improved.
In some examples, in the case where the pressing portion 12 is not pressed, the pressing piece 13 has a gap with the free end of the cantilever portion 21. In this way, the cantilever portion 21 is prevented from being in a deformed state all the time due to the mounting error of the pressing member 13, thereby further improving the accuracy of the function detection of the key module.
Alternatively, in some embodiments, a supporting block 14 is provided at the bottom of the accommodating chamber 11 opposite to the pressing portion 12, and the fixed end of the cantilever portion 21 is connected to the supporting block 14 such that the free end of the cantilever portion 21 is suspended above the bottom.
As shown in fig. 7 and 8, the bottom of the accommodating chamber 11 may be provided with a supporting block 14, and the supporting block 14 may provide a supporting force for the fixed end of the cantilever portion 21, so that the free end of the cantilever portion 21 may be suspended above the bottom. When the pressing portion 12 is pressed, the free end of the cantilever portion 21 moves by the abutment of the pressing member 13, so that the cantilever portion 21 is deformed.
It will be appreciated that the pressure sensing component 3 itself has a certain weight, and in the case that the free end of the cantilever portion 21 is completely suspended, the deformation of the cantilever portion 21 may be affected, so that the function detection of the key module is not accurate enough. Based on this, the supporting block 14 can also contact with one side wall of the accommodating cavity 11, so as to further provide enough supporting force and improve the situation that the cantilever part 21 is deformed under the influence of the gravity of the pressure sensing component 3.
Alternatively, in some embodiments, a stopper 15 is provided in the bottom of the accommodating chamber 11 opposite to the pressing portion 12, the stopper 15 being provided opposite to the free end of the cantilever portion 21 to define the moving distance of the free end of the cantilever portion 21.
In this embodiment, as shown in fig. 7 and 8, a limiting block 15 is further disposed at a position of the bottom of the accommodating cavity 11 opposite to the free end 13 of the cantilever portion 21, and when the pressing member 13 abuts against the free end of the cantilever portion 21 and drives the free end of the cantilever portion 21 to move downward, the limiting block 15 may abut against the free end of the cantilever portion 21 to limit the moving distance of the free end of the cantilever portion 21, so as to prevent the cantilever portion 21 from causing failure of the pressure sensing assembly 3 due to excessive deformation caused by stress, effectively improve the reliability of the pressure sensing assembly 3, and prolong the service life of the pressure sensing assembly 3.
Alternatively, in some embodiments, the pressure sensing assemblies 3 are attached to both sides of the cantilever portion 21, respectively.
Referring to fig. 9, the number of the pressure sensing assemblies 3 may be plural, for example, two sets of pressure sensing assemblies 3 may be respectively attached to two sides of the cantilever portion 21, and the two sets of pressure sensing assemblies 3 may sense the deformation of the cantilever portion 21 when the cantilever portion 21 is deformed, so as to increase the signal quantity of the pressure sensing assemblies 3, and further improve the accuracy of function detection of the key module.
The embodiment of the application also provides the electronic equipment, and the key module can be arranged on the electronic equipment.
It is understood that the electronic device may include a cell phone, tablet computer, palm top computer, wearable device, etc. The main body 1 in the key module may be a shell structure such as a back shell, a cover plate or a middle frame of the electronic device.
Other components of the electronic device, such as a display screen, functional components, a power supply, etc., and operation of the electronic device according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims (11)
1. A key module, comprising:
a main body including a receiving chamber, and a pressing part at one side of the receiving chamber;
The bracket is arranged in the accommodating cavity and comprises a connecting part and a cantilever part, the connecting part is connected with the cantilever part, and the connecting part is connected with at least one inner wall of the accommodating cavity; the cantilever part is suspended in the accommodating cavity through the connecting part, and the cantilever part is deformed under the condition that the pressing part is pressed;
The pressure sensing component is arranged on the cantilever part and is used for sensing the deformation of the cantilever part;
the cantilever part is provided with two opposite ends,
One end of the cantilever part is connected with the inner wall of the accommodating cavity through the connecting part, the other end of the cantilever part extends to form a pressure receiving surface, the pressure receiving surface is abutted with the pressing part, and the pressure receiving surface moves to deform the cantilever part under the condition that the pressing part is pressed.
2. The key module according to claim 1, wherein one end of the cantilever portion, which is close to the pressing portion, is fixed to an inner wall of the accommodating cavity through a connecting portion, the connecting portion has a pressed surface, the pressed surface abuts against the pressing portion, and when the pressing portion is pressed, the pressed surface moves to deform the cantilever portion.
3. The key module according to claim 1, wherein two ends of the cantilever portion are respectively fixed on the inner wall of the accommodating cavity through the connecting portion, one end of the cantilever portion is close to the pressing portion, the other end of the cantilever portion is far away from the pressing portion, and the pressure sensing assembly is arranged on a hanging portion of the cantilever portion.
4. A key module according to claim 3, wherein the inner wall of the accommodating cavity is provided with a limiting groove, and at least part of the connecting portion is embedded in the limiting groove for connection.
5. The key module according to claim 4, wherein the bracket further comprises a limiting portion, the limiting portion is disposed on one side of the connecting portion, and the limiting portion abuts against an inner wall of the accommodating cavity, in which the limiting groove is formed, to limit the position of the inner wall of the accommodating cavity when the connecting portion is fixed in the limiting groove.
6. The key module according to claim 4, wherein the pressing part of the accommodating cavity is provided with the limit groove, the bottom of the accommodating cavity opposite to the pressing part is also provided with the limit groove, the limit groove extends along a direction parallel to the pressing part, and the connecting parts at two ends of the bracket are respectively embedded in the limit groove of the pressing part and the limit groove at the bottom;
Or (b)
The limiting grooves are formed in the first side wall and the second side wall, which are adjacent to the pressing part, in the accommodating cavity, the first side wall is opposite to the second side wall, one end, close to the pressing part, of the cantilever part is connected with the limiting grooves formed in the first side wall through the first connecting part, the other end, far away from the pressing part, of the cantilever part is connected with the limiting grooves formed in the second side wall through the second connecting part, the surfaces of the first connecting part and the second connecting part are protruded to form the limiting parts, and the limiting parts of the first connecting part are abutted to the first side wall and the limiting parts of the second connecting part are abutted to the second side wall when the support is arranged on the main body.
7. The key module according to claim 1, wherein a fixed end of the cantilever portion is connected to the main body, and a pressing member is provided between a free end of the cantilever portion and the pressing portion; the pressing piece is provided with a pressing part, a cantilever part and a pressure sensing component, wherein the pressing part is provided with a cantilever part, the cantilever part is provided with a cantilever part, and the cantilever part is provided with a cantilever part, a pressing part and a pressing part;
When the pressing part is pressed, the free end of the pressing part is abutted with the free end of the cantilever part and drives the free end of the cantilever part to move, so that the cantilever part is deformed.
8. The key module according to claim 7, wherein a supporting block is provided at a bottom of the accommodating chamber opposite to the pressing portion, and a fixed end of the cantilever portion is connected to the supporting block so that a free end of the cantilever portion is suspended above the bottom.
9. The key module according to claim 7, wherein a stopper is provided in the receiving chamber at a bottom portion opposite to the pressing portion, the stopper being provided opposite to the free end of the cantilever portion to define a moving distance of the free end of the cantilever portion.
10. The key module according to any one of claims 1 to 9, wherein the pressure sensing members are provided on both sides of the cantilever portion, respectively.
11. An electronic device comprising a key module according to any one of claims 1 to 10.
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| CN202210727806.5A CN115394592B (en) | 2022-06-24 | 2022-06-24 | Key modules and electronic devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210727806.5A CN115394592B (en) | 2022-06-24 | 2022-06-24 | Key modules and electronic devices |
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| CN115394592B true CN115394592B (en) | 2025-06-27 |
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| CN116301205A (en) * | 2023-01-30 | 2023-06-23 | 维沃移动通信有限公司 | Electronic equipment |
| CN116828095A (en) * | 2023-08-18 | 2023-09-29 | 维沃移动通信有限公司 | Electronic equipment |
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| CN112596633A (en) * | 2020-12-31 | 2021-04-02 | 歌尔股份有限公司 | Touch button, steering wheel subassembly and car |
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| JP5842669B2 (en) * | 2012-02-28 | 2016-01-13 | 株式会社デンソーウェーブ | Switch device |
| JP2015125730A (en) * | 2013-12-27 | 2015-07-06 | ソニー株式会社 | Coordinate input device |
| CN111312542B (en) * | 2019-05-22 | 2022-05-17 | 深圳市鸿合创新信息技术有限责任公司 | Key box assembly and electronic equipment |
| CN212848120U (en) * | 2020-09-29 | 2021-03-30 | 歌尔股份有限公司 | Key assembly and electronic equipment |
| CN213691836U (en) * | 2020-11-05 | 2021-07-13 | 深圳和而泰智能控制股份有限公司 | Cantilever type button and take button equipment |
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| CN112596633A (en) * | 2020-12-31 | 2021-04-02 | 歌尔股份有限公司 | Touch button, steering wheel subassembly and car |
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