Button assembly and electronic device

Abstract

This application discloses a button assembly and an electronic device. The button assembly includes a housing, a button, and a trigger unit. The housing has a receiving cavity and a mounting blind hole, and the side walls of the housing together form the receiving cavity. The peripheral side walls of the housing include a first side and a second side facing away from each other, with the first side located outside the receiving cavity and the second side located inside the receiving cavity. The mounting blind hole is recessed from the first side to the second side, does not penetrate the second side, and forms a gap preventing communication between the mounting blind hole and the receiving cavity. The button includes a first end and a second end facing away from each other, with the first end located outside the housing and the second end extending into the mounting blind hole. The button is connected to the housing and can move relative to the housing in a first direction. The trigger unit is disposed in the receiving cavity and is configured to be triggered by the button.

Description

Technical Field

[0001] This application relates to the field of button technology, and more specifically, to a button assembly and electronic device. Background Technology

[0002] In electronic devices, such as traditional contact-activated buttons in watches, the button contacts a trigger inside the device's housing during use, transmitting the user's press input to the device via the internal trigger. The housing of such devices typically has a through-hole, and the button is movably connected to the housing, passing through the through-hole and triggering the internal trigger. To seal the gap between the inside of the through-hole and the outside of the button, the industry typically uses a sealing ring for waterproofing. However, due to various reasons—such as wear from frequent button presses, punctures from foreign objects lodged in the gap, or welding of other components affecting the integrity of the sealing ring's overall structure—the sealing ring may not effectively seal the gap, allowing water to easily enter the housing and affecting the normal operation of other internal components. Utility Model Content

[0003] This application provides a button assembly and an electronic device.

[0004] The button assembly provided in this application includes a housing, a button, and a trigger unit. The housing has a receiving cavity and a mounting blind hole, with each sidewall of the housing collectively forming the receiving cavity. The peripheral sidewall of the housing includes a first side and a second side facing away from each other, the first side being located outside the receiving cavity and the second side being located inside the receiving cavity. The mounting blind hole is recessed from the first side of the peripheral sidewall towards the second side of the peripheral sidewall, forming a gap that prevents communication between the mounting blind hole and the receiving cavity. The button includes a first end and a second end facing away from each other, the first end being located outside the housing and the second end extending into the mounting blind hole. The button is connected to the housing and can move relative to the housing in a first direction. The trigger unit is disposed in the receiving cavity and is configured to be triggered by the button.

[0005] In some embodiments, the spacer portion is deformable, and when the button is pressed and moves in the positive direction along the first direction, the second end causes the spacer portion to deform to trigger the trigger unit.

[0006] In some embodiments, the button assembly further includes a magnetic element connected to the second end and housed within the mounting blind hole. When the button is pressed and released, the magnetic element is configured to move along the first direction together with the button. The triggering unit is a magnetic induction unit that senses different magnetic fields at different positions of the magnetic element within the mounting blind hole to confirm different button operations.

[0007] In some embodiments, when the button is not pressed, the magnetic component is in a first position within the mounting blind hole, and the magnetic induction unit senses the magnetic field of the magnetic component as a first magnetic field; when the button is pressed to its limit, the magnetic component is in a second position within the mounting blind hole, and the magnetic induction unit senses the magnetic field of the magnetic component as a second magnetic field, wherein the strength of the first magnetic field is less than the strength of the second magnetic field.

[0008] In some embodiments, a mounting groove is provided on the second side of the peripheral sidewall. The mounting groove is located within the accommodating cavity and is situated on opposite sides of the spacer, respectively, as is the mounting blind hole. The mounting groove is configured to accommodate the magnetic induction unit, which includes a circuit board and a magnetic induction chip. The magnetic induction chip is disposed on the side of the circuit board facing the spacer.

[0009] In some embodiments, the mounting slot includes a first sub-slot and a second sub-slot. In the positive direction of the first direction, the first sub-slot and the second sub-slot are sequentially arranged and communicate with each other. The size of the first sub-slot is smaller than the size of the second sub-slot, the magnetic induction chip is housed in the first sub-slot, and the circuit board is housed in the second sub-slot.

[0010] In some embodiments, the end face of the second end of the button is provided with a groove, and the magnetic element is at least partially accommodated in the groove.

[0011] In some embodiments, the button includes a button cap and a button lever connected to the button cap. The button cap protrudes from the housing, and the button lever at least partially extends into the mounting blind hole. In the positive direction of the first direction, a first limiting portion and a second limiting portion are sequentially provided within the mounting blind hole. The button assembly also includes an elastic element and a limiting element. One end of the elastic element is connected to the button cap, and the other end is connected to the housing, and it is configured to provide an elastic restoring force when the button is released from pressure. The limiting element is located within the mounting blind hole and connected to the button lever, and the limiting element can move along the first direction with the button. When the magnetic element is in a first position within the mounting blind hole, the limiting element abuts against the first limiting portion to prevent the button from detaching from the housing, and the elastic element has a first length; when the magnetic element is in a second position within the mounting blind hole, the limiting element abuts against the second limiting portion, and the elastic element has a second length. The first length is greater than the second length.

[0012] In some embodiments, an annular recess is provided on the inner wall of the mounting blind hole. The annular recess includes a first wall and a second wall opposite each other in the first direction, with the first wall closer to the button cap than the second wall. The first limiting portion is the first wall of the annular recess, and the second limiting portion is the second wall of the annular recess. The limiting member is a retaining spring sleeved on the button rod, and the retaining spring is at least partially received within the annular recess.

[0013] In some embodiments, the mounting blind hole includes a first sub-hole and a second sub-hole. In the positive direction of the first direction, the first sub-hole and the second sub-hole are sequentially arranged and communicate with each other. The size of the second sub-hole is larger than the size of the first sub-hole, forming a stepped surface. The elastic element is sleeved on the button rod and at least partially accommodated in the first sub-hole. One end of the elastic element is connected to the button cap, and the other end is connected to the stepped surface. The peripheral sidewall is provided with a guide protrusion, through which the mounting blind hole passes. The button cap includes a pressing portion and a guiding portion. The guiding portion extends from the pressing portion and is located on the same side of the pressing portion as the button rod. The pressing portion, the guiding portion, and the pressing portion together form a guiding space, and the guiding protrusion extends into the guiding space.

[0014] In some embodiments, the peripheral sidewall is further provided with an annular receiving groove surrounding the mounting blind hole. Multiple elastic elements are included, each receiving the same groove. One end of each elastic element is connected to the bottom of the receiving groove, and the other end is connected to the button cap. Multiple pressing rods are provided at the bottom of the receiving groove, with each elastic element corresponding to one of the pressing rods, and each elastic element fitted onto its corresponding pressing rod.

[0015] Secondly, this application provides an electronic device. The electronic device includes the button assembly described in any of the above embodiments.

[0016] In some embodiments, the electronic device further includes a motherboard and a processor. The motherboard is housed within the accommodating cavity. The processor is mounted on the motherboard and electrically connected to the magnetic induction unit. The processor is configured to respond to an induction signal detected by the magnetic induction unit.

[0017] In some embodiments, the electronic device further includes a prompter. The prompter is electrically connected to the processor and is configured to issue a prompt message in response to a sensing signal detected by the magnetic sensing unit.

[0018] In the button assembly of this application, the side walls of the housing together form a receiving cavity. The peripheral side walls of the housing are provided with blind mounting holes, forming a spacer that prevents communication between the blind mounting holes and the receiving cavity. The spacer isolates the button housed in the blind mounting hole from the receiving cavity and also isolates the trigger unit housed in the receiving cavity from the blind mounting hole. When the button is pressed or released, the trigger unit is activated and generates a corresponding button signal. Therefore, the button assembly of this application does not require a sealing ring; the spacer alone provides a waterproof effect. In other words, the button assembly of this application has better sealing performance than traditional contact-type trigger buttons; water is less likely to enter the housing, and other components inside the housing can function normally.

[0019] Additional aspects and advantages of this 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 this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0021] Figure 1 This is a three-dimensional assembly diagram of the button assembly according to some embodiments of this application;

[0022] Figure 2 yes Figure 1 A three-dimensional exploded view of the button assembly shown;

[0023] Figure 3 yes Figure 1 The diagram shows a partial cross-sectional view of the button assembly as cut by line III-III;

[0024] Figure 4 yes Figure 2 An enlarged view of the button assembly at point IV;

[0025] Figure 5 The button components in other embodiments of this application are compared with Figure 1 A schematic diagram of the cross section obtained by the line corresponding to line VV shown;

[0026] Figure 6 yes Figure 5 An enlarged schematic diagram of the button assembly at position VI;

[0027] Figure 7 This is a schematic diagram of the structure of an electronic device according to certain embodiments of this application.

[0028] The reference numerals in the detailed embodiments are as follows:

[0029] Electronic device 100; motherboard 30; processor 50; indicator 70; connecting strip 90;

[0030] Button assembly 10;

[0031] Housing 11; Receiving cavity 111; Mounting blind hole 112; First sub-hole 1121; Second sub-hole 1123; First limiting part 11231; Second limiting part 11233; Annular recess 11235; Stepped surface 1125; Peripheral sidewall 113; First side of peripheral sidewall 11301; Second side of peripheral sidewall 11302; Spacer 114; Mounting groove 115; First sub-groove 1151; Second sub-groove 1153; Guide protrusion 116; Receiving groove 117; Pressing rod 1171;

[0032] Button 13; First end of button 1301; Second end of button 1303; Groove 131; Button cap 133; Pressing part 1331; Guide part 1333; Button rod 135; Guide space 137;

[0033] Magnetic component 15; magnetic induction unit 17; circuit board 171; magnetic induction chip 173; elastic component 18; limiting component 19;

[0034] First direction L; positive direction of the first direction L1; negative direction of the first direction L2. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In electronic devices, such as watches, traditional contact-triggered buttons contact a trigger inside the device's housing during use, transmitting the user's press operation to the device via the internal trigger. The housing of such devices typically has a through-hole, and the button is movably connected to the housing, passing through the through-hole and triggering the internal trigger. To seal the gap between the inside of the through-hole and the outside of the button, a sealing ring is commonly used for waterproofing. However, due to various reasons, such as wear from frequent button presses, punctures from foreign objects lodged in the gap, or welding of other components affecting the integrity of the sealing ring's overall structure, the sealing ring cannot effectively seal the gap, allowing water to easily enter the housing and affecting the normal operation of other internal components. To address this problem, this application provides a button assembly (…). Figure 1 (as shown) and electronic devices ( Figure 7 (As shown).

[0041] Please refer to Figure 1 and Figure 2 The button assembly 10 provided in this application includes a housing 11, a button 13, a magnetic element 15, and a magnetic induction unit 17. The housing 11 has a receiving cavity 111 and a mounting blind hole 112, and the side walls of the housing 11 together form the receiving cavity 111. The peripheral side wall 113 of the housing 11 includes a first side 11301 and a second side 11302 facing away from each other. The first side 11301 is located outside the receiving cavity 111, and the second side 11302 is located inside the receiving cavity 111. The mounting blind hole 112 is recessed from the first side 11301 of the peripheral side wall to the second side 11302 of the peripheral side wall, and forms a gap portion 114 that prevents the mounting blind hole 112 from communicating with the receiving cavity 111. The button 13 includes a first end 1301 and a second end 1302 facing away from each other. The first end 1301 is located outside the housing 11, and the second end 1302 extends into the mounting blind hole 112. Button 13 is connected to housing 11 and can move relative to housing 11 along a first direction L. A trigger unit is disposed in receiving cavity 111 and is configured to be triggered by button 13.

[0042] Specifically, in the above embodiment, the button assembly 10 is a component for users to press to transmit commands. The housing 11 is a component in the button assembly 10 used to house and connect other devices. The material of the housing 11 can be, but is not limited to, metal, plastic, or ceramic. When the housing 11 is made of metal, it has high structural strength, is not easily damaged, and has a long service life. When the housing 11 is made of plastic, it is lightweight and has a low cost. When the housing 11 is made of ceramic, it has high hardness, is not easily deformed, has good corrosion resistance, and a long service life. The housing 11 is provided with a receiving cavity 111 and a mounting blind hole 112.

[0043] The accommodating cavity 111 is a spatial structure that provides mounting space for devices such as the magnetic induction unit 17. Please refer to... Figure 4 The accommodating cavity 111 is formed by the side walls of the housing 11, which separate the accommodating cavity 111 from the outside of the button assembly 10. The mounting blind hole 112 is a spatial structure that provides mounting space for devices such as the button 13 and the magnetic component 15. The size and shape of the mounting blind hole 112 correspond to the size and shape of the button 13 and the magnetic component 15, so that the button 13 and the magnetic component 15 can mate with the mounting blind hole 112. The peripheral sidewall 113 is a peripheral sidewall in the housing 11 that separates the accommodating cavity 111 from the outside of the housing 11. Specifically, the peripheral sidewall 113 includes a first side 11301 and a second side 11302 facing away from each other. The first side 11301 of the peripheral sidewall is located outside the accommodating cavity 111, and the second side 11302 of the peripheral sidewall is located inside the accommodating cavity 111, as shown below. Figure 4 As shown. Taking the peripheral sidewall 113 as a reference, the mounting blind hole 112 is a spatial structure formed by the recess of the first sidewall 11301 towards the second sidewall 11302 of the peripheral sidewall. In the first direction L (in this application, the length direction of the button 13 in the button assembly 10 is defined as the first direction L, or the thickness direction of the peripheral sidewall 113 is defined as the first direction L), the mounting blind hole 112 does not penetrate the second sidewall 11302 of the peripheral sidewall; the mounting blind hole 112 is only provided on the first sidewall 11301 of the peripheral sidewall, that is, the mounting blind hole 112 is not connected to the receiving cavity 111. Therefore, there is a gap structure, namely the gap portion 114, between the mounting blind hole 112 and the receiving cavity 111.

[0044] The spacer 114 is a structure that prevents the mounting blind hole 112 from communicating with the receiving cavity 111. In the first direction L, the side of the spacer 114 corresponding to the first side 11301 of the peripheral sidewall is the mounting blind hole 112, and the side of the spacer 114 corresponding to the second side 11302 of the peripheral sidewall is the receiving cavity 111. Therefore, the presence of the spacer 114 makes the housing 11 a sealed structure, with no communication channel between the button 13 and the receiving cavity 111. This design effectively prevents external liquids and impurities from entering the interior of the housing 11, improving the waterproof and dustproof performance of the housing 11.

[0045] Button 13 is a device directly operated by the user when pressing button assembly 10. In the first direction L, button 13 includes a first end 1301 and a second end 1302. The first end 1301 of the button is located outside the housing 11, causing button 13 to protrude from the housing 11 to indicate the position of button 13 to the user; that is, at least a portion of button 13 protrudes from the mounting blind hole 112 (e.g., ...). Figure 1(As shown). The second end 1302 of the button extends into the mounting blind hole 112 to connect the button 13 with the mounting blind hole 112, that is, at least a portion of the button 13 extends into the mounting blind hole 112 and is connected to the mounting blind hole 112 (as shown). Figure 3 (As shown). Button 13 is connected to housing 11 via mounting blind hole 112. Specifically, the connection between button 13 and housing 11 is a movable connection, thereby ensuring that button 13 can move relative to housing 11 along the first direction L when it is pressed and released. That is, when button 13 is pressed and released, at least a part of button 13 moves along the first direction L in mounting blind hole 112, thereby changing its relative positional relationship with housing 11.

[0046] The trigger unit is a device that responds to and is triggered by button 13. The trigger unit is housed in a receiving cavity and is located on opposite sides of the spacer 114 in the first direction L, with at least a portion of the trigger unit opposite to at least a portion of button 13 in the first direction L. Depending on the operating principle of the button assembly 10, the trigger unit can be of different types. When the button assembly 10 uses a conventional press-triggered operating principle, the trigger unit is a mechanical switch. When the button assembly 10 uses an electromagnetic induction-triggered operating principle, the trigger unit is a magnetic induction switch. When the button assembly 10 uses a capacitance change-triggered operating principle, the trigger unit is a capacitive sensing switch. When button 13 is pressed, the trigger unit is configured to be triggered by button 13 to enable different operations of button 13 by the user.

[0047] In the button assembly 10 of this application, the side walls of the housing 11 together form a receiving cavity 111. The peripheral side wall 113 of the housing 11 is provided with a blind mounting hole 112, and a spacer 114 is formed to prevent communication between the blind mounting hole 112 and the receiving cavity 111. The spacer 114 isolates the button 13, which is housed in the blind mounting hole 112, from the receiving cavity 111, and also isolates the trigger unit, which is housed in the receiving cavity 111, from the blind mounting hole 112. When the button 13 is pressed or released, the trigger unit is triggered and generates a corresponding button signal. Therefore, the button assembly 10 of this application does not require a sealing ring; the spacer 114 alone provides a waterproof effect. That is, the button assembly 10 of this application has better sealing performance than traditional contact-type trigger buttons; water is less likely to enter the housing 11, and other components inside the housing 11 can function normally.

[0048] Please refer to Figure 1 and Figure 2 In some embodiments, the spacer 114 is deformable. When the button 13 is pressed and moves in the positive direction L1 of the first direction, the second end 1303 causes the spacer 114 to deform to trigger the trigger unit.

[0049] Specifically, in the above embodiment, the button 13 and the trigger unit are located on opposite sides of the spacer 114. When the spacer 114 is deformable, the button 13 can move closer to the spacer 114 in the first direction L, causing the spacer 114 to deform towards the trigger unit. The deformation of the spacer 114 is an elastic deformation, allowing the button assembly 10 to repeatedly perform the button function. The material of the spacer 114 can be, but is not limited to, silicone or rubber. When the spacer 114 is made of silicone, it has the advantages of high temperature resistance and good biocompatibility. When the spacer 114 is made of rubber, it has the advantages of high mechanical strength and low cost. When the button 13 is pressed by the user, the button 13 moves in the mounting blind hole 112 in the positive direction L1 of the first direction. At this time, the second end 1303 of the button contacts the spacer 114 and causes the spacer 114 to deform towards the trigger unit. The spacer 114 is in direct contact with at least a portion of the trigger unit, and at least a portion of the button 13 is in indirect contact with at least a portion of the trigger unit across the spacer 114, thereby triggering the trigger unit. One button operation of the button assembly 10 is completed.

[0050] Please refer to Figures 2 to 4 Please refer to some embodiments, where the button assembly 10 further includes a magnetic element 15 connected to the second end 1302 and housed within the mounting blind hole 112. When the button 13 is pressed and released, the magnetic element 15 is configured to move along the first direction L together with the button 13. The triggering unit is a magnetic sensing unit 17, which senses different magnetic fields when the magnetic element 15 is in different positions within the mounting blind hole 112. These different magnetic fields are used to obtain different operations on the button 13.

[0051] When the trigger unit is a magnetic induction unit 17, the button assembly 10 is also provided with a cooperating magnetic element 15. The magnetic element 15 is a device that cooperates with the magnetic induction unit 17 to realize the corresponding function of the button assembly 10. The magnetic element 15 is magnetic; specifically, the magnetic element 15 can be, but is not limited to, a device made of metallic magnetic materials or rare-earth magnetic materials. The shape of the magnetic element 15 can be, but is not limited to, a cube, cylinder, or sphere, etc., and the number of magnetic elements 15 can be one or more (in this application, "multiple" refers to more than one, and "multiple" can be, but is not limited to, two, three, or four, etc.). The size and shape of the magnetic element 15 need to match the size and shape of the mounting blind hole 112 and the size and shape of the button 13 to ensure the installation of the magnetic element 15 on the button 13 and the movable installation of the button 13 and the mounting blind hole 112. Specifically, please refer to... Figure 2 and Figure 3The magnetic component 15 is connected to the second end 1302 of the button and is housed within the mounting blind hole 112.

[0052] The connection between the magnetic component 15 and the button 13 can be either detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering. When the button 13 is pressed and released, the magnetic component 15, through its connection with the button 13, is configured to move along the first direction L together with the button 13, and at this time, the magnetic component 15 is configured to be accommodated within the mounting blind hole 112. The magnetic component 15 generates a magnetic field with a certain magnetic induction intensity. When the position of the magnetic component 15 changes in the first direction L, the distribution of the magnetic field within the mounting blind hole 112 will change. At this time, the movement of the button 13 can be detected by the change in the magnetic field of the magnetic component 15.

[0053] The magnetic induction unit 17 is a device used to sense the magnetic field of the magnetic component 15 and generate a corresponding signal. The magnetic induction unit 17 is disposed in the accommodating cavity 111 and connected to the housing 11. The connection between the magnetic induction unit 17 and the housing 11 can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The magnetic induction unit 17 is fixed in position within the accommodating cavity 111. The magnetic induction unit 17 is configured to sense the magnetic field of the magnetic component 15; that is, when the magnetic field within the mounting blind hole 112 changes, the magnetic induction unit 17 responds to the change in magnetic field and generates a corresponding signal. Therefore, when the button 13 is pressed and released, the magnetic induction unit 17 can sense the magnetic field of the magnetic component 15 and generate a corresponding signal, thus realizing the function of the button assembly 10.

[0054] Specifically, in the above embodiment, when button 13 is pressed and released, the magnetic element 15 moves together with button 13 along the first direction L, and the magnetic element 15 is in different positions within the mounting blind hole 112 during the movement. When the magnetic element 15 is in different positions within the mounting blind hole 112, the magnetic field detected by the magnetic induction unit 17 will change. Specifically, the strength and distribution of the magnetic field detected by the magnetic induction unit 17 are different depending on the position of the magnetic element 15. Therefore, the movement of button 13 represented by the change in the magnetic field within the mounting blind hole 112 can be reflected by the induction signal generated by the magnetic induction unit 17. At this time, the corresponding electrical signal generated by the magnetic induction unit 17 is configured to respond to different operations (e.g., pressing or releasing operations), thereby realizing the function of the button assembly 10 (e.g., turning on the display screen, turning off the display screen, switching the display page on the display screen, etc.).

[0055] Processor 50 ( Figure 7 (As shown) The processor 50 can determine the change in position of the magnetic component 15 within the mounting blind hole 112 based on the different magnetic fields detected by the magnetic induction unit 17. The processor 50 can also determine the movement trajectory of the magnetic component 15 within the mounting blind hole 112 based on the changes in the magnetic field detected by the magnetic induction unit 17. In one example, the movement trajectory of the magnetic component 15 is along the positive direction L1 of the first direction (defined as the direction in which the button 13 moves when the button assembly 10 is pressed in the first direction L1, and the opposite direction of the positive direction L1 is defined as the negative direction L2) as it approaches the magnetic induction unit 17. At this time, the magnetic induction chip 173 generates a signal to trigger the electronic device 100 (e.g., the button assembly 10) used for the button assembly 10. Figure 7 The watch shown has an electrical signal for a function (e.g., lighting up the display). In another example, the magnetic component 15 moves away from the magnetic induction unit 17 in a negative direction L2 along a first direction, at which point the magnetic induction chip 173 generates an electrical signal for triggering the electronic device used by the button assembly 10 (e.g.,...). Figure 7 The watch shown (e.g., turning off the display) generates an electrical signal that triggers another function. Specifically, the electrical signal generated by the magnetic induction chip 173 can trigger functions including, but not limited to, turning on, switching on, and turning off functions.

[0056] Please refer to Figure 3 and Figure 4In some embodiments, when the button 13 is not pressed, the magnetic element 15 is in a first position within the mounting blind hole 112, and the magnetic induction unit 17 senses the magnetic field of the magnetic element 15 as a first magnetic field; when the button 13 is pressed to its limit, the magnetic element 15 is in a second position within the mounting blind hole 112, and the magnetic induction unit 17 senses the magnetic field of the magnetic element 15 as a second magnetic field, and the strength of the first magnetic field is less than the strength of the second magnetic field.

[0057] In the above embodiments, the magnetic element 15 is in different positions within the mounting blind hole 112 when the button 13 is pressed or not, and the magnetic field sensed by the magnetic induction unit 17 is different. Specifically, when the button 13 is not pressed, the magnetic element 15 is in a first position within the mounting blind hole 112 and forms a magnetic field with a certain spatial distribution around it. At this time, since the position of the magnetic induction unit 17 within the housing 11 is fixed, and the magnetic induction unit 17 and the magnetic element 15 have the farthest distance, the magnetic field sensed by the magnetic induction unit 17 and the magnetic element 15 is defined as the first magnetic field. When the button 13 is pressed to its limit, the magnetic element 15 is in a second position within the mounting blind hole 112 and forms a magnetic field with a certain spatial distribution around it. At this time, since the position of the magnetic induction unit 17 within the housing 11 is fixed, and the distance between the magnetic induction unit 17 and the magnetic element 15 becomes smaller and becomes the closest distance, the magnetic field sensed by the magnetic induction unit 17 and the magnetic element 15 is defined as the second magnetic field. The magnetic element 15 is closer to the magnetic induction unit 17 in the second position than in the first position. Since the distribution of the magnetic field generated around the magnetic component 15 relative to the magnetic component 15 does not change with the position of the magnetic component 15 in the mounting blind hole 112, and the magnetic component 15 is closer to the magnetic induction unit 17 in the second position than in the first position, the strength of the first magnetic field is less than the strength of the second magnetic field.

[0058] Please refer to Figure 3 and Figure 4 In some embodiments, a mounting groove 115 is provided on the second side 11302 of the peripheral sidewall. The mounting groove 115 is located within the receiving cavity 111 and is located on opposite sides of the spacer 114, respectively, as is the mounting blind hole 112. The mounting groove 115 is configured to receive a magnetic induction unit 17, which includes a circuit board 171 and a magnetic induction chip 173. The magnetic induction chip 173 is disposed on the side of the circuit board 171 facing the spacer 114.

[0059] Specifically, in the above embodiment, the mounting groove 115 is a spatial structure for accommodating the magnetic induction chip 173. The mounting groove 115 is configured to be disposed on the second side 11302 of the peripheral sidewall, and the mounting groove 115 is located within the accommodating cavity 111 so that the magnetic induction chip 173 is mounted within the accommodating cavity 111. The peripheral sidewall of the mounting groove 115 and the housing 11 can be integrally formed or separately formed. When the peripheral sidewall of the mounting groove 115 and the housing 11 are separately formed, the connection between the peripheral sidewall of the mounting groove 115 and the housing 11 can be detachable or non-detachable. Detachable connection includes, but is not limited to, one or more combinations of screw connection and snap-fit ​​connection. Non-detachable connection includes, but is not limited to, one or more combinations of gluing, welding and sintering. The mounting groove 115 and the mounting blind hole 112 are respectively located on opposite sides of the spacer 114 in the first direction L, that is, the spacer 114 separates the mounting groove 115 and the mounting blind hole 112. At this time, the magnetic induction unit 17 installed in the mounting slot 115 cooperates with the magnetic component 15 located in the mounting blind hole 112.

[0060] Specifically, the magnetic induction unit 17 is fixed in position within the accommodating cavity 111. The mounting slot 115 is configured to accommodate the magnetic induction unit 17, thereby fixing the magnetic induction unit 17 within the accommodating cavity 111. The connection between the mounting slot 115 and the magnetic induction unit 17 can be either detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The magnetic induction unit 17 includes a circuit board 171 and a magnetic induction chip 173. The magnetic induction chip 173 is a device that senses the magnetic field of the magnetic component 15 and generates a corresponding signal. The magnetic induction chip 173 is disposed on the side of the circuit board 171 facing the spacer 114, so that the magnetic induction chip 173 corresponds to the magnetic component 15 in the first direction L. At this time, the magnetic induction chip 173 is directly facing the magnetic component 15, thus enabling the magnetic induction chip 173 to more accurately detect changes in the magnetic field of the magnetic component 15. Circuit board 171 is the electronic device 100 that transmits the signal generated by magnetic induction chip 173 to key assembly 10. Figure 7 The components of the motherboard 30 (shown) include, for example, a reinforced flexible printed circuit (FPC) 171. The circuit board 171 is electrically connected to the motherboard 30 and transmits signals to the motherboard 30 to achieve the corresponding function. In the above embodiment, the magnetic induction unit 17 is disposed in the mounting slot 115 and cooperates with the magnetic component 15 at a distance 114. The button assembly 10 can achieve the corresponding function through the cooperation of the magnetic induction unit 17 and the magnetic component 15 while also having good waterproof performance.

[0061] Please refer to Figure 4 and Figure 6 In some embodiments, the mounting slot 115 includes a first sub-slot 1151 and a second sub-slot 1153. In the positive direction L1 of the first direction, the first sub-slot 1151 and the second sub-slot 1153 are sequentially arranged and communicate with each other. The size of the first sub-slot 1151 is smaller than the size of the second sub-slot 1153. The magnetic induction chip 173 is housed in the first sub-slot 1151, and the circuit board 171 is housed in the second sub-slot 1153.

[0062] Specifically, in the above embodiment, the first sub-slot 1151 is a spatial structure within the mounting slot 115 used to accommodate the magnetic induction chip 173. The shape of the first sub-slot 1151 can be, but is not limited to, a rectangular slot, a U-shaped slot, or a V-shaped slot, etc., and the size and shape of the first sub-slot 1151 need to match the size and shape of the magnetic induction chip 173. The magnetic induction chip 173 is fixedly mounted in the first sub-slot 1151. The magnetic induction chip 173 can be mounted in the first sub-slot 1151 in a detachable or non-detachable manner.

[0063] The second sub-slot 1153 is a spatial structure within the mounting slot 115 used to accommodate the circuit board 171. The shape of the second sub-slot 1153 can be, but is not limited to, a rectangular slot, a U-shaped slot, or a V-shaped slot, etc., and the size and shape of the second sub-slot 1153 must match the size and shape of the circuit board 171. The circuit board 171 is fixedly mounted in the second sub-slot 1153. The circuit board 171 can be mounted in the second sub-slot 1153 in a detachable or non-detachable manner.

[0064] In the first direction L1, a first sub-slot 1151 and a second sub-slot 1153 are sequentially arranged and connected to each other. The connecting area between the first sub-slot 1151 and the second sub-slot 1153 is used to facilitate the connection structure between the magnetic induction chip 173 and the circuit board 171. The size of the first sub-slot 1151 is smaller than that of the second sub-slot 1153; that is, in a plane perpendicular to the first direction L, the area of ​​the projected surface of the first sub-slot 1151 is smaller than the area of ​​the projected surface of the second sub-slot 1153. The first sub-slot 1151 and the second sub-slot 1153 restrict the installation position of the magnetic induction unit 17 and simplify the installation process of the magnetic induction unit 17. In addition, since the first sub-slot 1151 and the second sub-slot 1153 have different sizes, they form a stepped surface. Therefore, the mounting slot 115 also serves to limit the circuit board 171 in the first direction L.

[0065] Please refer to Figure 4 and Figure 6 In some embodiments, the end face of the second end 1302 of the button is provided with a groove 131, and the magnetic element 15 is at least partially accommodated in the groove 131.

[0066] Specifically, in the above embodiment, the groove 131 is a spatial structure for accommodating the magnetic element 15. The groove 131 is disposed on the end face of the second end 1302 of the button, and the opening of the groove 131 points towards the positive direction L1 in the first direction. The groove 131 is configured to accommodate at least a portion of the magnetic element 15. The magnetic element 15 may be completely located within the groove 131, i.e., the magnetic element 15 does not protrude from the groove 131; or, the magnetic element 15 may not be completely located within the groove 131, i.e., a portion of the magnetic element 15 is located within the groove 131, and another portion protrudes from the groove 131. The arrangement of the groove 131 can reduce the movement space reserved for the magnetic element 15 in the first direction L, reduce the size of the button assembly 10 in the first direction L, and make the structure of the button assembly 10 more miniaturized and compact.

[0067] Please refer to Figure 2 and Figure 4 Furthermore, in some embodiments, the button 13 may include a button cap 133 and a button lever 135 connected to the button cap 133. The button cap 133 protrudes from the housing 11, and the button lever 135 extends at least partially into the mounting blind hole 112. In the positive direction L1 of the first direction, a first limiting portion 11231 and a second limiting portion 11233 are sequentially provided in the mounting blind hole 112. The button assembly 10 also includes an elastic member 18 and a limiting member 19. One end of the elastic member 18 is connected to the button cap 133, and the other end is connected to the housing 11, and is configured to provide an elastic restoring force when the button 13 is released from pressure. The limiting member 19 is located in the mounting blind hole 112 and connected to the button lever 135, and the limiting member 19 can move along the first direction L with the button 13. When the magnetic component 15 is in the first position within the mounting blind hole 112, the limiting component 19 abuts against the first limiting portion 11231 to prevent the button 13 from detaching from the housing 11, and the elastic component 18 has a first length; when the magnetic component 15 is in the second position within the mounting blind hole 112, the limiting component 19 abuts against the second limiting portion 11233, and the elastic component 18 has a second length. The first length is greater than the second length.

[0068] Specifically, in the above embodiments, the button cap 133 is a component of the button 13 for the user to press. The material of the button cap 133 can be, but is not limited to, rubber, metal, and plastic. When the button cap 133 is made of rubber, it provides a good pressing feel and is non-slip and wear-resistant. When the button cap 133 is made of metal, it has high strength and durability. When the button cap 133 is made of plastic, it has the advantages of being lightweight and low-cost. The button lever 135 is a component of the button 13 for movably connecting to the mounting blind hole 112. The material of the button lever 135 can be, but is not limited to, rubber, metal, and plastic. When the button lever 135 is made of rubber, it has good elasticity and wear resistance. When the button lever 135 is made of metal, it has high strength and durability. When the button lever 135 is made of plastic, it has the advantages of being lightweight and low-cost.

[0069] Please combine Figure 6 The button cap 133 is connected to the button lever 135 along the positive direction L1 of the first direction. The button lever 135 and the button cap 133 can be an integral structure or a separate structure. When the button lever 135 and the button cap 133 are separate structures, they can be detachably connected or non-detachably connected. When the button lever 135 and the button cap 133 are detachably connected, the connection method can be, but is not limited to, snap-fit ​​and threaded connection. When the button lever 135 and the button cap 133 are non-detachably connected, the connection method can be, but is not limited to, welding and gluing. The button cap 133 protrudes from the housing 11, that is, the outer surface of the button cap 133 is higher than the outer surface of the housing 11. Therefore, the button cap 133 can indicate the location of the button 13 to the user, making it convenient for the user to operate. The button lever 135 extends at least partially into the mounting blind hole 112 to achieve a movable connection between the button 13 and the mounting blind hole 112.

[0070] The elastic element 18 is a device that provides elastic restoring force when the button 13 is released from pressure. The elastic element 18 can be, but is not limited to, a combination of one or more springs, leaf springs, and rubber elastic elements. When the elastic element 18 is a spring, it has the advantages of simple structure and low cost. When the elastic element 18 is a leaf spring, it has the advantage of high load-bearing capacity. When the elastic element 18 is a rubber elastic element, it has the advantages of wear resistance and corrosion resistance. One end of the elastic element 18 is connected to the button cap 133, and the other end is connected to the housing 11. The connection between the elastic element 18 and the button cap 133 can be an abutment connection or a fixed connection. When the elastic element 18 is fixedly connected to the button 13, the connection method can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The connection between the elastic element 18 and the housing 11 can be an abutment connection or a fixed connection. When the elastic element 18 is fixedly connected to the housing 11, the connection method can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. When the button 13 is released from pressure, because the elastic element 18 provides elastic restoring force to the button 13, the button 13 can move and reset along the negative direction L2 of the first direction.

[0071] The limiting member 19 is a device that restricts the movement of the button 13 in the first direction L. The limiting member 19 is configured to be located within the mounting blind hole 112 and connected to the button lever 135. The connection between the limiting member 19 and the button lever 135 can be detachable or non-detachable. Detachable connection includes, but is not limited to, one or more combinations of screw connection and snap connection. Non-detachable connection includes, but is not limited to, one or more combinations of gluing, welding and sintering. The limiting member 19, through its connection with the button lever 135, forms a movable unit with the button 13. Therefore, when the button 13 is pressed, the limiting member 19 can move along the positive direction L1 of the first direction with the button 13; when the button 13 is released from pressing, the limiting member 19 can move along the negative direction L2 of the first direction with the button 13.

[0072] In the positive direction L1 of the first direction, a first limiting part 11231 and a second limiting part 11233 are sequentially disposed inside the mounting blind hole 112. The first limiting part 11231 and the second limiting part 11233 are components used to limit the movement of the button lever 135 in the mounting blind hole 112. Specifically, the first limiting part 11231 and the second limiting part 11233 are used to cooperate with the limiting member 19 to limit the movement of the button lever 135 in the mounting blind hole 112.

[0073] When the button lever 135 is at its extreme position in the negative L2 of the first direction, the magnetic component 15 is in the first position within the mounting blind hole 112. At this time, the limiting component 19 abuts against the first limiting part 11231. Due to the connection between the limiting component 19 and the button lever 135, the button 13 cannot continue to move along the negative L2 of the first direction. Therefore, the first limiting part 11231 restricts the button 13 from detaching from the housing 11, ensuring the stability and reliability of the button assembly 10. At this time, the elastic component 18 has a first length, and the elastic component 18 can be in a compressed state, a non-deformable state, or a stretched state.

[0074] When the button lever 135 is at its limit position in the positive direction L1 of the first direction, the magnetic element 15 is in the second position within the mounting blind hole 112. At this time, the limiting member 19 abuts against the second limiting part 11233. Due to the connection between the limiting member 19 and the button lever 135, the button 13 cannot continue to move along the positive direction L1 of the first direction. Therefore, at this time, the second limiting part 11233 restricts the movement limit position of the button 13 in the first direction L and prevents the button 13 from contacting the bottom of the mounting blind hole 112, thus ensuring the stability and reliability of the button assembly 10. At this time, the elastic element 18 has a second length and is in a compressed state. The first length is greater than the second length, that is, when the magnetic element 15 moves from the first position to the second position, the elastic element 18 is compressed.

[0075] For details, please refer to Figure 4 In some embodiments, an annular recess 11235 is provided on the inner wall of the mounting blind hole 112. The annular recess 11235 includes a first wall and a second wall opposite to each other in the first direction L, with the first wall being closer to the button cap 133 than the second wall. The first limiting portion 11231 is the first wall of the annular recess 11235, and the second limiting portion 11233 is the second wall of the annular recess 11235. The limiting member 19 is a retaining spring sleeved on the button rod 135, and the retaining spring is at least partially accommodated within the annular recess 11235.

[0076] Specifically, in the above embodiment, the annular recess 11235 is a spatial structure providing a first limiting portion 11231 and a second limiting portion 11233. The annular recess 11235 is disposed on the inner wall of the mounting blind hole 112, that is, the annular recess 11235 is formed by a recess from the side of the inner wall of the mounting blind hole 112 away from the mounting blind hole 112. The annular recess 11235 includes a first wall and a second wall, which are opposite each other in the first direction L. The first wall is closer to the button cap 133 than the second wall, that is, the first wall and the second wall are sequentially distributed in the positive direction L1 of the first direction. The first wall of the annular recess 11235 is the first limiting portion 11231, which restricts the button 13 from detaching from the housing 11. The second wall of the annular recess 11235 is the second limiting portion 11233, which restricts the button 13 to its maximum movement position in the first direction L.

[0077] In some embodiments, the limiting member 19 is a retaining ring, which is sleeved on and connected to the button lever 135. Therefore, when the button 13 is pressed, the retaining ring moves along the positive direction L1 of the first direction with the button 13; when the button 13 is released from pressure, the retaining ring moves along the negative direction L2 of the first direction with the button 13. Furthermore, the retaining ring is at least partially accommodated within the annular recess 11235. The cooperation between the retaining ring and the annular recess 11235 restricts the movement path of the button 13 within the mounting blind hole 112 to a certain range and prevents the button 13 from detaching from the housing 11.

[0078] Please refer to Figure 4 In some embodiments, the mounting blind hole 112 includes a first sub-hole 1121 and a second sub-hole 1123. In the positive direction L1 of the first direction, the first sub-hole 1121 and the second sub-hole 1123 are sequentially arranged and communicate with each other. The size of the second sub-hole 1123 is larger than the size of the first sub-hole 1121, forming a stepped surface 1125. An elastic member 18 is sleeved on the button lever 135 and is at least partially accommodated in the second sub-hole 1123. One end of the elastic member 18 is connected to the button cap 133, and the other end is connected to the stepped surface 1125. A guide protrusion 116 is provided on the peripheral sidewall 113, and the mounting blind hole 112 passes through the guide protrusion 116. The button cap 133 includes a pressing portion 1331 and a guiding portion 1333. The guiding portion 1333 extends from the pressing portion 1331 and is located on the same side of the pressing portion 1331 as the button lever 135. The pressing part 1331, the guide part 1333 and the button rod 135 together form a guide space 137, and the guide protrusion 116 extends into the guide space 137.

[0079] Specifically, in the above embodiment, the first sub-hole 1121 is a spatial structure within the blind hole 112 used for mounting the button lever 135, the limiting member 19, and the magnetic member 15. The cross-section of the first sub-hole 1121 can be, but is not limited to, circular, elliptical, square, near-circular, near-elliptical, or other polygonal shapes. The size and shape of the first sub-hole 1121 need to match the size and shape of the button lever 135, the limiting member 19, and the magnetic member 15. The second sub-hole 1123 is a spatial structure within the blind hole 112 used to provide space for the elastic member 18. The cross-section of the second sub-hole 1123 can be, but is not limited to, circular, elliptical, square, near-circular, near-elliptical, or other polygonal shapes. The size and shape of the second sub-hole 1123 need to match the size and shape of the button lever 135 and the elastic member 18. In the positive direction L1 of the first direction, the first sub-hole 1121 and the second sub-hole 1123 are arranged sequentially, and the first sub-hole 1121 and the second sub-hole 1123 are interconnected. The second sub-hole 1123 is larger than the first sub-hole 1121 to form a stepped surface 1125. An elastic element 18 is fitted onto the button lever 135 and is at least partially accommodated in the second sub-hole 1123. One end of the elastic element 18 is connected to the button cap 133, and the other end is connected to the stepped surface 1125.

[0080] The button 13 is configured to move along a first direction L within the mounting blind hole 112 and to rotate within the mounting blind hole 112. A guide protrusion 116 is a component used to guide the movement or rotation direction of the button 13. The guide protrusion 116 is provided on the peripheral sidewall 113 of the housing 11 and extends from the peripheral sidewall 113 of the housing 11 along the negative direction L2 of the first direction. The guide protrusion 116 passes through the mounting blind hole 112, the button rod 135 extends into the mounting blind hole 112, and the button cap 133 is fitted onto the guide protrusion 116.

[0081] The button cap 133 includes a pressing part 1331 and a guiding part 1333. Please refer to further details. Figure 2 The pressing part 1331 is the part that the user directly presses when pressing the button cap 133. The button cap 133 extends in the positive direction L1 of the first direction and is provided with a guide part 1333. The guide part 1333 and the button lever 135 are located on the same side of the pressing part 1331. The guide part 1333 is a component used to guide the movement direction of the button cap 133. The pressing part 1331 and the guide part 1333 can be an integral structure or a separate structure. When the pressing part 1331 and the guide part 1333 are separate structures, the connection method between the pressing part 1331 and the guide part 1333 can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding and sintering methods.

[0082] The pressing part 1331, the guide part 1333, and the button lever 135 together form a guide space 137. The guide space 137 is a spatial structure that cooperates with the guide protrusion 116 to guide the movement and rotation of the button 13. The guide protrusion 116 extends into the guide space 137, and the size and shape of the guide space 137 need to match the size and shape of the guide protrusion 116. When the button 13 is configured to move along the first direction L in the mounting blind hole 112, the volume of the guide part 1333 extending into the guide space 137 changes with the movement of the button 13. Therefore, the cooperation between the guide part 1333 and the guide space 137 can guide the movement of the button cap 133 in the first direction L, and can prevent damage to the button 13 when the pressure of the user pressing the button cap 133 is at a certain angle to the first direction L. When the button 13 is configured to rotate within the mounting blind hole 112... The volume of the portion of the guide part 1333 extending into the guide space 137 remains unchanged; only the portion of the guide part 1333 extending into the guide space 137 rotates within the guide space 137. Therefore, the cooperation between the guide part 1333 and the guide space 137 guides the rotation of the keycap 133, making the user's operation of rotating the keycap 133 smoother.

[0083] Please refer to Figure 5 and Figure 6 In some embodiments, the peripheral sidewall 113 is further provided with an annular receiving groove 117, which surrounds the blind hole 112. Multiple elastic elements 18 are included, each receiving the receiving groove 117. One end of each elastic element 18 is connected to the bottom of the receiving groove 117, and the other end is connected to the button cap 133. Multiple pressing rods 1171 are provided at the bottom of the receiving groove 117, and the multiple elastic elements 18 correspond to the multiple pressing rods 1171, with each elastic element 18 sleeved on its corresponding pressing rod 1171.

[0084] Specifically, in the above embodiment, the receiving groove 117 is a spatial structure for receiving the elastic member 18, formed by a recess from the peripheral sidewall 113 of the housing 11 along the first direction L1. The receiving groove 117 is annular and surrounds the mounting blind hole 112. There are multiple elastic members 18, all of which are received within the receiving groove 117. One end of each elastic member 18 is connected to the bottom of the receiving groove 117, and the other end is connected to the button cap 133. The connection between the elastic member 18 and the bottom of the receiving groove 117 can be an abutment connection or a fixed connection. When the elastic member 18 is fixedly connected to the bottom of the receiving groove 117, the connection method can be either a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The connection between the elastic element 18 and the button cap 133 can be an abutment connection or a fixed connection. When the elastic element 18 and the button cap 133 are fixedly connected, the connection method can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering.

[0085] The dimensions of the elastic element 18 need to match the dimensions of the receiving groove 117 and the key cap 133. The number and layout of the elastic elements 18 need to be evenly distributed around the key rod 135 in the receiving groove 117 so that the key 13 is pressed in the blind hole 112 and the force is balanced.

[0086] The bottom of the receiving groove 117 is provided with multiple pressing rods 1171. The pressing rods 1171 are components used to assist in the installation and deformation of the elastic element 18, and are used to prevent the elastic element 18 from tilting when the button 13 is pressed and deformed. Please refer to... Figure 6 The elastic element 18 is sleeved on the pressing rod 1171, that is, the elastic element 18 is installed around the pressing rod 1171. When there are multiple elastic elements 18, the number of pressing rods 1171 is the same as the number of elastic elements 18, and each elastic element 18 corresponds to each pressing rod 1171. The shape and size of each pressing rod 1171 are matched with the shape and size of the corresponding elastic element 18, and each elastic element 18 is sleeved on the corresponding pressing rod 1171. When the button 13 is pressed, each elastic element 18 is compressed by the button cap 133 and undergoes elastic deformation. Since the elastic element 18 is sleeved on the pressing rod 1171, even if the force on the button cap 133 is uneven, the elastic element 18 will not tilt. Therefore, this design reduces the problem of deformation or even damage to the elastic element 18 due to uneven force on the button cap 133.

[0087] Secondly, this application provides an electronic device 100. The electronic device 100 includes a button assembly 10 of any of the above embodiments.

[0088] The electronic device 1000 may include one or more button components 10. Furthermore, the electronic device 1000 may include, but is not limited to, watches, mobile phones, tablets, and headphones. When the electronic device 1000 is a pair of headphones, the button component 10 may be part of a transducer component. When the electronic device 1000 is a mobile phone, the button component 10 may be part of the mobile phone's frame. When the electronic device 1000 is a tablet, the button component 10 may be part of the tablet's frame. This application only uses... Figure 7 The electronic device 1000 shown is illustrated using a watch as an example. The watch includes the button assembly 10 of any embodiment of this application.

[0089] Please refer to Figure 7 In some embodiments, the electronic device 100 further includes a motherboard 30 and a processor 50. The motherboard 30 is housed within a housing cavity 111. The processor 50 is mounted on the motherboard 30 and electrically connected to a magnetic induction unit 17. The processor 50 is configured to respond to an induction signal detected by the magnetic induction unit 17.

[0090] Specifically, in the above embodiment, the motherboard 30 is a device for implementing the functions corresponding to the button assembly 10. For example, the motherboard 30 is a printed circuit board (PCB). The motherboard 30 is housed in the receiving cavity 111 and is electrically connected to other devices. The processor 50 is a device for responding to the sensing signal detected by the magnetic induction unit 17. The processor 50 is configured to be mounted on the motherboard 30. The connection method used for mounting the processor 50 and the motherboard 30 can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of methods such as screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of methods such as gluing, soldering, and sintering. The processor 50 is electrically connected to the magnetic induction unit 17. When the processor 50 responds to the sensing signal detected by the magnetic induction unit 17, the processor 50 controls the electronic device 100 to perform the corresponding function. The electronic device 100 may also include a connecting strap 90, which is a device for fixing the electronic device 100 in the user's position.

[0091] Please refer to Figure 7 Furthermore, in some embodiments, the electronic device 100 may also include a prompter 70. The prompter 70 is electrically connected to the processor 50 and is configured to issue a prompt message in response to a sensing signal detected by the magnetic sensing unit 17.

[0092] In the above embodiment, when the processor 50 responds to the sensing signal detected by the magnetic induction unit 17, the prompter 70 issues a prompt message in the form of auditory, visual, tactile, or olfactory prompts. Auditory prompts include, but are not limited to, playing abnormal content, rapid music, alarm sounds, or other sounds sufficient to attract the user's attention through a speaker or buzzer (not shown). Visual prompts include, but are not limited to, displaying abnormal text or images on a display (not shown), or flashing indicator lights (not shown). Tactile prompts include, but are not limited to, using a motor vibrator (please refer to further details). Figure 1 and Figure 2 The device provides a reminder through vibration feedback. Olfactory reminders include, but are not limited to, reminders through a special odor emitted by an odor sensor (not shown). In this application, the reminder 70 is taken as a vibrator. When the user presses the button assembly 10 of the electronic device 100, the vibration feedback emitted by the motor vibrator serves as a reminder for the pressing operation, allowing the user to more clearly perceive the progress of the pressing operation.

[0093] In the button assembly 10 of this application, the side walls of the housing 11 together form a receiving cavity 111. The peripheral side wall 113 of the housing 11 is provided with a blind mounting hole 112, and a spacer 114 is formed to prevent communication between the blind mounting hole 112 and the receiving cavity 111. The spacer 114 isolates the button 13, which is housed in the blind mounting hole 112, from the receiving cavity 111, and also isolates the trigger unit, which is housed in the receiving cavity 111, from the blind mounting hole 112. When the button 13 is pressed or released, the trigger unit is triggered and generates a corresponding button signal. Therefore, the button assembly 10 of this application does not require a sealing ring; the spacer 114 alone provides a waterproof effect. That is, the button assembly 10 of this application has better sealing performance than traditional contact-type trigger buttons; water is less likely to enter the housing 11, and other components inside the housing 11 can function normally.

[0094] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0095] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A key assembly, characterized by include: The housing has a receiving cavity and a mounting blind hole. The side walls of the housing together form the receiving cavity. The peripheral side wall of the housing includes a first side and a second side facing away from each other. The first side is located outside the receiving cavity, and the second side is located inside the receiving cavity. The mounting blind hole is formed by recessing from the first side of the peripheral side wall to the second side of the peripheral side wall, and forms a gap that prevents the mounting blind hole from communicating with the receiving cavity. A button includes a first end and a second end, the first end being located outside the housing, and the second end extending into the mounting blind hole. The button is connected to the housing and is movable relative to the housing along a first direction. A trigger unit is disposed in the accommodating cavity, and the trigger unit is configured to be triggered by the button.

2. The key assembly of claim 1, wherein, The spacer portion is deformable, and when the button is pressed and moves in the positive direction along the first direction, the second end causes the spacer portion to deform to trigger the trigger unit.

3. The key assembly of claim 1, wherein, The button assembly further includes a magnetic element connected to the second end and housed within the mounting blind hole. When the button is pressed and released, the magnetic element is configured to move along the first direction together with the button. The triggering unit is a magnetic induction unit. When the magnetic element is in different positions within the mounting blind hole, the magnetic induction unit senses different magnetic fields when the magnetic element is in different positions to confirm different operations of the button. When the button is not pressed, the magnetic component is in a first position within the mounting blind hole, and the magnetic induction unit senses the magnetic field of the magnetic component as a first magnetic field. When the button is pressed to its limit, the magnetic component is in a second position within the mounting blind hole, and the magnetic induction unit senses the magnetic field of the magnetic component as a second magnetic field, where the strength of the first magnetic field is less than the strength of the second magnetic field.

4. The button assembly according to claim 3, characterized in that, A mounting groove is provided on the second side of the peripheral sidewall. The mounting groove is located in the accommodating cavity and is located on opposite sides of the spacer, respectively, as is the mounting blind hole. The mounting groove is configured to accommodate the magnetic induction unit, which includes a circuit board and a magnetic induction chip. The magnetic induction chip is disposed on the side of the circuit board facing the spacer.

5. The key assembly of claim 4, wherein, The mounting slot includes a first sub-slot and a second sub-slot. In the positive direction of the first direction, the first sub-slot and the second sub-slot are arranged sequentially and connected to each other. The size of the first sub-slot is smaller than the size of the second sub-slot. The magnetic induction chip is housed in the first sub-slot, and the circuit board is housed in the second sub-slot. The end face of the second end of the button is provided with a groove, and the magnetic component is at least partially housed in the groove.

6. The key assembly of claim 3, wherein The button includes a button cap and a button rod connected to the button cap. The button cap protrudes from the housing, and the button rod at least partially extends into the mounting blind hole. In the positive direction of the first direction, a first limiting portion and a second limiting portion are sequentially provided within the mounting blind hole. The button assembly further includes: An elastic element, one end connected to the button cap and the other end connected to the housing, is configured to provide an elastic restoring force when the button is released from pressure; and A limiting member is located inside the mounting blind hole and connected to the button rod. The limiting member can move along the first direction together with the button. When the magnetic component is in a first position within the mounting blind hole, the limiting component abuts against the first limiting portion to prevent the button from detaching from the housing, and the elastic component has a first length; When the magnetic component is in the second position within the mounting blind hole, the limiting component abuts against the second limiting portion, and the elastic component has a second length, the first length being greater than the second length.

7. The key assembly of claim 6, wherein, The inner wall of the mounting blind hole is provided with an annular recess. The recess includes a first wall and a second wall opposite to each other in the first direction. The first wall is closer to the button cap than the second wall. The first limiting part is the first wall of the recess, and the second limiting part is the second wall of the recess. The limiting member is a retaining spring sleeved on the button rod. The retaining spring is at least partially accommodated in the recess.

8. The key assembly of claim 6, wherein The mounting blind hole includes a first sub-hole and a second sub-hole. In the positive direction of the first direction, the first sub-hole and the second sub-hole are sequentially arranged and interconnected. The size of the second sub-hole is larger than the size of the first hole, forming a stepped surface. The elastic element is sleeved on the button rod and at least partially accommodated in the first sub-hole. One end of the elastic element is connected to the button cap, and the other end is connected to the stepped surface. The peripheral sidewall is provided with a guide protrusion, through which the mounting blind hole passes. The button cap includes: Pressing part; and A guide portion extends from the pressing portion and is located on the same side of the pressing portion as the button lever. The pressing portion, the guide portion, and the pressing portion together form a guide space, and the guide protrusion extends into the guide space.

9. The key assembly of claim 6, wherein, The peripheral sidewall is also provided with an annular receiving groove, the receiving groove surrounds the mounting blind hole, the elastic element includes multiple elastic elements, each of the multiple elastic elements is received in the receiving groove, one end of each elastic element is connected to the bottom of the receiving groove, and the other end is connected to the button cap; The bottom of the receiving groove is provided with multiple pressing rods, and multiple elastic elements correspond to multiple pressing rods respectively, with each elastic element sleeved on the corresponding pressing rod.

10. An electronic device, comprising: Includes the button assembly as described in any one of claims 1-9.

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