Wearable device

Abstract

The present application provides a wearable device including an earphone and a host. The earphone has an earphone magnet. The host includes a first part and a second part that can be opened and closed. The first part has a first housing groove. The second part has a third housing groove. When the host is closed, the first housing groove and the third housing groove surround the housing space. The first part has a first host mounting magnet. When the host is closed, the earphone is housed in the housing space, and the earphone magnet is magnetically attached to the first host mounting magnet. When the host is opened, the earphone is mounted in the first housing groove and can move with the first part. When the earphone is housed in the first housing groove, a small part of the earphone is located in the first housing groove, and a large part of the earphone is located outside the first housing groove. By designing the host that can be opened and closed, the wireless earphone can be housed in the host, and the product form of the wireless earphone and the wearable product is integrated, thereby reducing the devices that the user needs to carry. This improves the user experience.

Description

Technical Field

[0001] This application claims priority to Chinese Patent Application No. 202111677026.6, entitled "WEARABLE DEVICE", filed with the State Intellectual Property Office of China on December 31, 2021, the entire disclosure of which is incorporated herein by reference.

[0002] This application relates to the field of electronic devices, and more particularly, to wearable devices.

Background Art

[0003] Wearable products such as smartwatches, smart bands, and wireless earphones are widely used by users. In daily scenarios, users often wear both wearable products and wireless earphones. Furthermore, users need to carry an earphone case to store the wireless earphones. As a result, users need to carry more devices, which is disadvantageous to the user experience.

Summary of the Invention

[0004] One embodiment of this application provides a wearable device that can directly accommodate wireless earphones in a wearable product, integrates the product forms of the wireless earphones and the wearable product, and reduces the devices that the user needs to carry. Thereby, the user experience is improved.

[0005] The wearable device in this embodiment of the present application includes earphones and a host. The earphones are attached with earphone magnets. The host includes a first part and a second part. The first part can rotate relative to the second part and can open with respect to the second part, so that the host is in an open state, or the first part and the second part can be closed, so that the host is in a closed state. The first part has a first receiving groove. The second part has a third receiving groove. When the host is closed, the first receiving groove and the third receiving groove surround a receiving space. The first part has a first host mounting magnet. When the host is closed, the earphones are accommodated in the receiving space, and the earphone magnets are magnetically attached to the first host mounting magnet. When the first part is opened with respect to the second part, the earphones can be mounted in the first receiving groove and move together with the first part. When the earphones are accommodated in the first receiving groove, the maximum distance between the part of the earphones located in the first receiving groove and the surface where the opening of the first receiving groove is located is the first distance, and the maximum distance between the part of the earphones located outside the first receiving groove and the surface where the opening of the first receiving groove is located is the second distance. The first distance is smaller than the second distance.

[0006] In this solution, by designing a host that can be opened and closed, the wireless earphones can be accommodated in the host, and by integrating the product forms of the wireless earphones and the wearable product, the number of devices that the user needs to carry around is reduced. Thereby, the user experience is improved. Furthermore, when the host is opened, the earphones can be attached to the first part, and most of the earphones can be exposed outside the first part, so that the user can conveniently take out and arrange the earphones.

[0007] In one embodiment, the first host attachment magnet is a Halbach array, and the earphone magnet is a single magnet or a Halbach array. By making the first host attachment magnet a Halbach array, the magnetic attraction force of the first part of the host to the earphone can be increased, so that when the user places the earphone on the first part, the earphone can be accurately attached to the first part without precise alignment.

[0008] In one embodiment, the first host attachment magnet is a Halbach array, the first host attachment magnet includes two connected single magnets, and the magnetic field directions of the two single magnets are different. The earphone magnet includes one single magnet, and the single magnet is a Halbach array having two different magnetic field directions. Based on the design of the magnet, the magnetic attraction force of the first part of the host to the earphone can be significantly enhanced, so that when the user places the earphone on the first part, the earphone can be accurately attached to the first part without precise alignment.

[0009] In one embodiment, the second part has a second host attachment magnet. When the earphone is accommodated in the accommodation space, the earphone magnet is magnetically attached to both the first host attachment magnet and the second host attachment magnet, and the magnetic force between the earphone magnet and the first host attachment magnet is greater than the magnetic force between the earphone magnet and the second host attachment magnet. Based on the design of the magnet, when the host is opened, the earphone can be attached to the first part. Also, when the earphone is located in the second part when the host is opened, the magnetic attraction force of the second part to the earphone can ensure that the earphone is placed in the second part, and even when the host is turned over, the earphone does not easily fall off.

[0010] In one embodiment, a groove is provided at the periphery of the first part. The first part has a sealing member, and several protrusions are provided on the surface of the sealing member. Several protrusions are arranged in pairs at intervals. The sealing member is fixed in the groove of the first part. Several protrusions of the sealing member are all connected to the bottom surface of the groove of the first part. The surface of the sealing member that is far from the protrusions of the sealing member is exposed outside the groove of the first part. When closing the host, the part of the sealing member that is exposed outside the groove of the first part contacts the second part to seal the gap between the first part and the second part. Or a groove is provided at the periphery of the second part. The second part has a sealing member, and several protrusions are provided on the surface of the sealing member. Several protrusions are arranged in pairs at intervals. The sealing member is fixed in the groove of the second part. Several protrusions of the sealing member are all connected to the bottom surface of the groove of the second part. The surface of the sealing member that is far from the protrusions of the sealing member is exposed outside the groove of the second part. When closing the host, the part of the sealing member that is exposed outside the groove of the second part contacts the first part to seal the gap between the first part and the second part. In this solution, the gap between the two parts of the host can be sealed, and it can be ensured that the inside of the host and the earphone accommodated in the host are not easily corroded by foreign objects.

[0011] In one embodiment, the second part has a first charging spring and a second charging spring. The earphone has a centrosymmetric shape. The earphone includes a first electrode and a second electrode. Both the first electrode and the second electrode are located outside the earphone and are in a ring-shaped structure surrounding the center line of the earphone. The first electrode and the second electrode are spaced apart from each other. When the earphone is located in the second part, the first electrode contacts the first charging spring, and the second electrode contacts the second charging spring. The host includes a charging circuit. The charging circuit is configured to charge the earphone using the first charging spring and the second charging spring. In this solution, when the earphone is placed in the second part at a random rotation angle, the earphone can be charged using the host.

[0012] In one embodiment, the second part has a foreign object detection spring. The host includes a processor. The processor is configured to control the charging circuit to turn off based on an abnormal charging signal of the charging circuit and to control the charging circuit to operate based on a normal charging signal of the charging circuit. After a foreign object comes into contact with the foreign object detection spring and at least one of the first charging spring and the second charging spring, the charging circuit generates an abnormal charging signal, and in other cases, the charging circuit generates a normal charging signal. In this solution, when it is determined that a foreign object has entered the second part, the host can stop charging the earphone, avoid the occurrence of abnormalities, and ensure the safety and reliability of the product.

[0013] In one form of an embodiment, the first part or the second part has a temperature detection module. The host includes a processor. The processor is configured to control the charging circuit to turn off when it is determined that the detected temperature is equal to or higher than a threshold value based on the detection result of the temperature detection module. The processor is further configured to control the charging circuit to operate when it is determined that the detected temperature is lower than the threshold value based on the detection result of the temperature detection module. In this solution, when it is determined that the temperature of the host is excessively high, the host can stop charging the earphone, avoid the occurrence of abnormalities, and ensure the safety and reliability of the product.

[0014] In one embodiment, the second part has a state detection magnet, the first part has a first magnetic field sensor, and the first magnetic field sensor is configured to detect the magnetic flux of the state detection magnet. The host includes a processor. The processor is configured to determine whether the host is in an open state or a closed state based on the detection signal of the first magnetic field sensor. In this solution, since the open / closed state of the host can be detected, the corresponding functions of the host and the earphone can be realized, and the user experience can be ensured.

[0015] In one embodiment, the first part or the second part is provided with a second magnetic field sensor, and the second magnetic field sensor is configured to detect the magnetic flux of the earphone magnet. The host includes a processor. The processor is configured to determine whether the earphone is located in the first receiving groove based on the detection signal of the second magnetic field sensor of the first part, or the processor is configured to determine whether the earphone is located in the third receiving groove based on the detection signal of the second magnetic field sensor of the second part. In this solution, since the host can detect the position state of the earphone in the host, the corresponding functions of the host and the earphone can be realized, and the user experience can be ensured.

[0016] In one embodiment, the second part is provided with a state detection magnet. The earphone is provided with a third magnetic field sensor, and the third magnetic field sensor is configured to detect the magnetic flux of the state detection magnet. The earphone is provided with a controller, and the controller is configured to determine whether the earphone is located in the third receiving groove based on the detection signal of the third magnetic field sensor. In this solution, since the earphone can detect the position state of the earphone in the host, the corresponding function of the earphone can be realized, and the user experience can be ensured.

[0017] In one embodiment, the host includes a rotating shaft assembly, and the rotating shaft assembly includes a shaft sleeve, a driven member, an elastic member, and a first shaft. The shaft sleeve has an internal cavity, and the outside of the shaft sleeve is fixedly connected to a first portion. The driven member has a shaft matching surface and a through hole, and the through hole of the driven member penetrates the shaft matching surface. The driven member is located in the internal cavity, and the driven member can slide along the surface of the internal cavity but cannot rotate relative to the shaft sleeve. The elastic member is located in the internal cavity and presses a surface of the driven member that is far from the shaft matching surface. A part of the first shaft is located in the internal cavity and is rotatably connected to the shaft sleeve. The part of the first shaft located in the internal cavity penetrates the through hole of the driven member and fits with the shaft matching surface of the driven member to form a cam mechanism. Another part of the first shaft is located outside the internal cavity and is fixedly connected to a second portion. The first portion can rotate relative to the second portion by using the rotating shaft assembly. In the process of the host switching from the closed state to the open state, the rotation stroke of the first portion sequentially includes a first stroke section, a second rotation stroke section, and a third stroke section. In the first stroke section, the driven member can move along the first shaft under the drive of the elastic force of the elastic member, and the driven member rotates around the first shaft due to the articulation of the cam mechanism and the elastic member, so that the shaft sleeve can be rotated around the first shaft, thereby rotating the first portion relative to the second portion. In the second stroke section, the first portion rotates relative to the second portion under the drive of an external force and can rotate the shaft sleeve and the driven member around the first shaft.In the third stroke interval, the driven member can move along the first shaft under the drive of the elastic force of the elastic member. The driven member rotates around the first shaft due to the articulation of the cam mechanism and the elastic member, and can rotate the shaft sleeve around the first shaft, whereby the shaft sleeve rotates the first portion relative to the second portion. In this solution, based on the structural design of the rotating shaft assembly, the first portion has different operating characteristics in each stroke interval. Thereby, a special touch is created for the user, and the user experience can be greatly improved.

[0018] In one embodiment, the shaft alignment surface includes a first inclined surface, a flat surface, and a second inclined surface that are sequentially connected. The first inclined surface and the flat surface form an obtuse angle. The flat surface and the second inclined surface form an obtuse angle. The first inclined surface, the flat surface, and the second inclined surface form a two-step ladder. In the first stroke interval, the first inclined surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. In the second rotational stroke interval, the flat surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. In the third stroke interval, the second inclined surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. In this solution, by designing the cam alignment surface, the design of the three stroke intervals of the first portion can be reliably realized.

[0019] In one embodiment, the rotating shaft assembly includes a shaft sleeve, a second shaft, and a flexible circuit board. The shaft sleeve has an internal cavity. A channel is formed in the second shaft in the axial direction of the second shaft. A part of the second shaft is located in the internal cavity and is rotatably connected to the shaft sleeve, and the other part of the second shaft is located outside the internal cavity. The flexible circuit board includes a first electrical connection end, a mounting portion, and a second connection end. The mounting portion is located between the first electrical connection end and the second electrical connection end and includes a winding portion and a stacking portion that are connected to each other. When the flexible circuit board is attached to the second shaft, both the first electrical connection end and the second electrical connection end are located outside the internal cavity. The winding portion is wound around a portion of the second shaft that is located in the internal cavity, the stacking portion is in a folded state, and at least a part of the stacking portion is accommodated in the channel of the second shaft. A first host circuit board assembly is provided in the first part, and the first host circuit board assembly is electrically connected to the first electrical connection end. A second host circuit board assembly is provided in the second part, and the second host circuit board assembly is electrically connected to the second electrical connection end. The first part is fixedly connected to the outside of the shaft sleeve, the second part is fixedly connected to a portion of the second shaft that is located outside the internal cavity, and the first part can rotate relative to the second part using the rotating shaft assembly. In this solution, based on the structural design of the rotating shaft assembly, two parts of the host can achieve electrical connection and communication using the rotating shaft assembly. Thereby, it is guaranteed that the host operates normally.

[0020] In one embodiment, the first host circuit board assembly includes a circuit board, which has a ground point and a power supply point. The first portion includes a first host housing, which is fixedly connected to the outside of the shaft sleeve, and the first host circuit board assembly is fixed to a surface of the first host housing that is far from the shaft sleeve. The first host housing is electrically connected to both the ground point and the power supply point, and the first host housing is used as a host antenna. In this solution, based on an appropriate structural design, the host antenna function is realized using the first host housing.

[0021] In one embodiment, the shaft assembly includes a shaft contact member. The shaft contact member is fixed to the shaft sleeve and is in sliding contact with a portion of the second shaft that is located in the internal cavity. The second portion includes a third host housing, which is fixedly connected to a portion of the second shaft that is located outside the internal cavity, and the third host housing is used as a host antenna. In this solution, based on an appropriate structural design, an antenna system is constructed using the first host housing, the rotating shaft assembly, and the third host housing to realize the host antenna function.

[0022] In one embodiment, when the host is closed, there is a gap between the first host housing and the third host housing, and the first host housing and the second host housing are coupled. In this solution, a feeding path with a coupling method is designed to meet the different communication requirements of the host in the open state and the closed state and ensure the host antenna performance in different states.

[0023] In one embodiment, the first part is one of the host's cover and the host's body, and the second part is the other of the cover and the body. The host includes an open button, and the open button includes a cap, an elastic member, and a touch-sensing spring. A part of the cap is located on the second part, and the other part of the cap is located outside the second part. The cap is movably connected to the second part. The cap has a bump located on the second part. The elastic member is attached to the second part to apply a repulsive force to the cap. The touch-sensing spring is located on the second part, and the touch-sensing spring is spaced apart from the opposite side of the bump of the cap. When closing the host, the cap and the first part form a buckle connection to latch the first part and the second part. When the cap is pressed, it moves to the second part, thereby releasing the buckle connection, and the bump of the cap presses the touch-sensing spring. In this solution, an open button having the aforementioned structure is designed so that the host can be opened and closed.

[0024] In one embodiment, the shape of the earphone and the first receiving groove match, and / or the shape of the earphone and the third receiving groove match. By conforming the earphone to the internal shape of the host, the internal space of the host can be utilized to the maximum extent to accommodate the earphone, and a compact structure and beautiful appearance of the host can be ensured.

[0025] In one embodiment, the earphone includes an earplug, a first electrode, a front earphone housing, a second electrode, and a rear earphone housing. The first electrode is located between the earplug and the front earphone housing. The front earphone housing is connected to the first electrode and the second electrode. The second electrode is connected to the front earphone housing and the rear earphone housing. When the earphone is accommodated in the first accommodation groove or the third accommodation groove, the earplug faces the rotary shaft assembly, and the rear earphone housing is on the side far from the rotary shaft assembly. Since the earphone is arranged in the host in the above-described posture, the user can directly wear the earphone after taking it out of the host. This meets the ergonomic requirements.

[0026] In one embodiment, the host includes a smartwatch. In this solution, the wireless earphone can be directly stored in the smartwatch, and by integrating the product forms of the wireless earphone and the smartwatch, the devices that the user needs to carry can be reduced. Thereby, the user experience is improved.

Brief Description of the Drawings

[0027]

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[0028] The following embodiments of the present application provide a wearable device. The wearable device is a completely new product form in which a host and earphones are integrated. Examples of the product form of the host include electronic devices such as smart watches, electronic blood pressure monitors, smart bands, smart helmets, smart clothing, smart glasses, mobile Wi-Fi, and smart backpacks, but are not limited thereto. The earphone is a wireless earphone, and examples include Bluetooth earphones (for example, True Wireless Stereo (TWS) earphones) and infrared earphones, but are not limited thereto. Hereinafter, an example in which the host has the product form of a smart watch and the earphone is a Bluetooth earphone will be used for explanation.

[0029] As shown in FIGS. 1, 2, 3, 4, and 5, the wearable device 1 in this embodiment may include a host 2 and earphones 3, and the earphones 3 can be accommodated in the host 2. Hereinafter, first, the related design of the host 2 will be described, then the related design of the earphones 3 will be described, and finally, the overall features and functions of the wearable device 1 will be described.

[0030] Product form and operation design of the host 2

[0031] As shown in FIGS. 1 to 4, the host 2 may include a first part 21, a rotary shaft assembly 22, a second part 23, a function button 24, and an open button 25. The first part 21 may be called a cover, and the second part 23 may be called a main body.

[0032] The host 2 may further include a list strap that can be connected to opposite sides of the second part 23.

[0033] As shown in FIGS. 1 to 3, the rotary shaft assembly 22 is connected to the first part 21 and the second part 23, and the first part 21 can rotate relative to the second part 23 via the rotary shaft assembly 22, so that the host 2 can be in a closed state or an open state. When the host 2 is closed, the first part 21 and the second part 23 can surround an accommodation space, and the earphones 3 are accommodated in the accommodation space.

[0034] In Figure 1, the host 2 is in a closed state. In this case, the first part 21 and the second part 23 are latched. Throughout Figures 2 to 5, the host 2 is in an open state. In this case, the first part 21 is opened at an angle with respect to the second part 23. For example, the opening angle a of the first part 21 in Figure 2 can be about 15 degrees. The opening angle b of the first part 21 in Figure 3 can be about 75 degrees. The first part 21 in Figure 5 rotates to the limit position, and the opening angle c of the first part 21 can be about 90 degrees. It should be understood that the specific value of the opening angle c that occurs when the first part 21 is in the limit position can be designed based on product requirements and is not limited to the above description.

[0035] Furthermore, in this embodiment, as shown in Figures 2 to 4, when the host 2 is in an open state, the earphone 3 can be separated from the second part 23 and attached to the first part 21. This design is convenient for the user to take out and place the earphone 3 (further described below). In another embodiment, after the host 2 is opened, the earphone 3 can be accommodated in the second part 23.

[0036] In this embodiment, based on the special structural design of the rotary shaft assembly 22, the rotation stroke of the first part 21 can be divided into sections, and the first part 21 has corresponding rotation characteristics in each stroke section. In a specific stroke section, the first part 21 can provide tactile feedback (the specific principle will be described in detail below).

[0037] For example, while opening the closed host 2, the rotational stroke of the first part 21 can be divided into three sections. The stroke from the state shown in FIG. 1 to the state shown in FIG. 2 may represent the first stroke section of the first part 21. In the first stroke section, the opening angle of the first part 21 gradually increases to the opening angle a, and the first part 21 automatically rotates under the torque drive of the rotary shaft assembly 22 without receiving an external force. The stroke from the state shown in FIG. 2 to the state shown in FIG. 3 may represent the second stroke section of the first part 21. In the second stroke section, the opening angle of the first part 21 gradually increases from the opening angle a to the opening angle b, and the rotary shaft assembly 22 no longer applies torque to the first part 21, and the first part 21 needs to rotate under the drive of an external force. The stroke from the state shown in FIG. 3 to the state shown in FIG. 5 may represent the third stroke section of the first part 21. In the third stroke section, the opening angle of the first part 21 gradually increases from the opening angle b to the opening angle c, and the first part 21 automatically rotates under the torque drive of the rotary shaft assembly 22 without receiving an external force. When the opening angle of the first part 21 is the opening angle c, the torque of the rotary shaft assembly 22 may continue to exist. It is easily understood that the host 2 has a limiting structure and the first part 21 can maintain an equilibrium state under the combined action of the limiting structure and the rotary shaft assembly 22.

[0038] The flip of a conventional flip-type electronic device (for example, a notebook computer or a flip-type mobile phone) can only be opened after the user continuously applies force, and the tactile experience is monotonous. However, in this embodiment, since the rotational stroke of the first part 21 is segmented by using the structural design of the rotary shaft assembly 22, the first part 21 needs to be driven only by the force applied by the user in the second stroke section, and can automatically rotate in other stroke sections without the user applying force. This provides a novel tactile experience.

[0039] Furthermore, in the third stroke section, the first part 21 is driven in a direction away from the second part 23 by the rotary shaft assembly 22. When the opening angle of the first part 21 reaches the opening angle c, the driving force of the rotary shaft assembly 22 still exists. Therefore, by the operation of the user removing the earphone 3 from the first part 21, it becomes difficult for the first part 21 to be pulled toward the second part 23. With this design, it becomes easier for the user to remove the earphone 3, and the user experience can be improved.

[0040] In another embodiment, it is not necessary to divide the rotation stroke of the first part 21 into sections, and the structure of the rotary shaft may be designed such that the first part 21 rotates in a way that the user continuously applies force or always automatically.

[0041] As shown in FIGS. 1 to 3, the open button 25 can be attached to the second part 23. The open button 25 and the rotary shaft assembly 22 may be located at both radial ends of the second part 23, respectively. A part of the open button 25 can be exposed outside the second part 23 so that the user can press it. The latch structure (described below) of the open button 25 can form a detachable connection with the latch structure (described below) of the first part 21. The open button 25 is adapted to the latch structure of the first part 21 to open and close the host 2.

[0042] For example, as shown in FIG. 1, when the host 2 is in the closed state, the latch structure of the open button 25 and the latch structure of the first part 21 form a detachable connection.

[0043] Referring to FIGS. 1 and 2, when the user needs to open the host 2, the user can press the open button 25, thereby causing the open button 25 to produce a mechanism operation, and the latch structure of the open button 25 no longer conforms to the latch structure of the first part 21. In this case, the first part 21 is automatically opened under the drive of the rotary shaft assembly 22 and can execute the first stroke section. Conversely, when the user wants to close the host 2, the user can push down the first part 21 and rotate the first part 21 towards the second part 23. When the latch structure of the second part 23 contacts the latch structure of the open button 25, the open button 25 produces a mechanism operation, and the latch structure of the open button 25 is restored to conform to the latch structure of the first part 21.

[0044] The specific principle of opening and closing the host 2 by the latch structures of the open button 25 and the first part 21 will be described in detail below.

[0045] In another embodiment, alternatively, the open button may be attached to the first part, and the second part has a latch structure. The open button is adapted to the latch structure of the second part to open and close the host. The first part may be a cover, and the second part may be a body. Taking the design of attaching the open button 25 to the second part 23 as an example, it will be further described below.

[0046] The product form and operation design of the wearable device 1 have been briefly described above. Below, the specific structure of the wearable terminal 1 will be described in detail in the order of the first part 21, the second part 23, the open button 25, the function button 24, and the rotary shaft assembly 22.

[0047] Structure of the host 2

[0048] As shown in FIGS. 5 and 6, the first portion 21 of the host 2 of the wearable device 1 may include a display 211, a first host circuit board assembly 212, and a first host housing 213. Both the display 211 and the first host circuit board assembly 212 are attached to the first host housing 213, and the first host circuit board assembly 212 is located between the display 211 and the first host housing 213.

[0049] Structure of the first host housing 213

[0050] As shown in FIGS. 7 and 8, the first host housing 213 can be substantially disk-shaped. The first host housing 213 can be obtained by assembling several components, for example, it may include a first frame body 213a, a first bracket 213b, a magnet assembly 213r, a latch portion 213d (i.e., the latch structure in the first portion 21 described above), a seal bracket 213t, and a seal ring 213s.

[0051] As shown in FIGS. 7 to 9, the first frame body 213a can be a frame structure having a substantially circular contour. A through hole 213z may be provided at the edge of the first frame body 213a, and the through hole 213z may be a waist-shaped hole (or also called a runway-shaped hole). The first frame body 213a may be formed of a conductive material, such as metal. The first frame body 213a can function as an antenna (described below).

[0052] As shown in FIGS. 7 to 9, the first bracket 213b may have a substantially disk-shaped structure. The first receiving groove 213y and the second receiving groove 213x may be formed in a partial region of the first bracket 213b, and the first receiving groove 213y and the second receiving groove 213x are spaced apart from each other. As shown in FIG. 9, when viewed from one side of the first bracket 213b, the partial region where the first receiving groove 213y and the second receiving groove 213x are formed is concave. As shown in FIGS. 7 and 8, when viewed from the other side of the first bracket 213b, the partial region where the first receiving groove 213y and the second receiving groove 213x are formed is convex. As shown in FIGS. 4 and 9, the first earphone 31 may be received using the first receiving groove 213y, and the second earphone 32 may be received using the second receiving groove 213x.

[0053] As shown in FIG. 9, a groove surrounding the periphery of the first bracket 213b may be further provided, and the opening of this groove and the opening of the first receiving groove 213y are located on the same side of the first bracket 213b. This groove surrounds the periphery of the first receiving groove 213y and the second receiving groove 213x. As will be described later, this groove is used for attaching the seal bracket 213t and the seal ring 213s.

[0054] As shown in FIGS. 7 to 9, the first bracket 213b is fixedly connected to the first frame body 213a, the circumferential region of the first frame body 213a surrounds the periphery of the first bracket 213b, and the through hole 213z of the first frame body 213a is also located outside the first bracket 213b.

[0055] As shown in FIG. 9, the latch portion 213d can be fixed to the edge of the first bracket 213b and can be disposed to face the through hole 213z of the first frame body 213a. Referring to FIGS. 9 and 10, a frame structure 213w can be provided at an end of the latch portion 213d that is far from the first bracket 213b. The frame structure 213w may be located on the same side of the first bracket 213b as the opening of the first receiving groove 213y. A through hole 213v may be provided around the frame structure 213w. The surface of the frame structure 213w that is far from the first bracket 213b may have an inclined surface 213u. The frame structure 213w of the latch portion 213d is used to form a detachable buckle connection (described below) with the latch structure of the open button 25. Since the inclined surface 213u functions as a guide, the frame structure 213w can smoothly fit with the latch structure of the open button 25.

[0056] Magnet assembly 213r

[0057] As shown in FIGS. 8 and 11, the magnet assembly 213r may include a fastening bracket 213r1 and a first host mounting magnet 213r2.

[0058] For example, the first host mounting magnet 213r2 can be formed by joining two single magnets. Each single magnet has a single magnetic field direction, and the first host mounting magnet 213r2 formed by the two single magnets can have two magnetic field directions. The first host mounting magnet 213r2 can form a Halbach array.

[0059] Based on the product requirements, in another embodiment, the first host-mounted magnet may be a Halbach array formed by joining a different number of individual magnets. For example, the first host-mounted magnet may be a Halbach array formed by joining three individual magnets, and the first host-mounted magnet may have three magnetic field directions. Alternatively, the first host-mounted magnet may be a Halbach array formed by joining four individual magnets, and the first host-mounted magnet may have four magnetic field directions.

[0060] Alternatively, in another embodiment, the first host-mounted magnet may be an individual magnet and may have a single magnetic field direction. Alternatively, the first host-mounted magnet may be an individual magnet, but the first host-mounted magnet may also form a Halbach array having at least two magnetic field directions (this can be obtained by magnetizing different physical regions of the individual magnet in different directions).

[0061] As shown in FIGS. 11 and 7, the first host-mounted magnet 213r2 of this embodiment may be shaped to fit the outer surface of the groove wall of the first receiving groove 213y (or the second receiving groove 213x) of the first bracket 213b. The first host-mounted magnet 213r2 may be fixed to the outer surface of the groove wall of the first receiving groove 213y and the outer surface of the groove wall of the second receiving groove 213x.

[0062] As shown in FIG. 11, for example, there may be four first host mounting magnets 213r2, and the structures of the four first host mounting magnets 213r2 may be consistent, for example. Referring to FIGS. 11 and 7, the four first host mounting magnets 213r2 can be grouped as pairs. A first group is attached to the outer surface of the groove wall of the first receiving groove 213y, and the two first host mounting magnets 213r2 of the first group may be symmetrically attached to both sides (for example, the left side and the right side as viewed from FIG. 7) of the groove wall of the first receiving groove 213y. A second group is attached to the outer surface of the groove wall of the second receiving groove 213x, and the two first host mounting magnets 213r2 of the second group are symmetrically attached to both sides (for example, the left side and the right side as viewed from FIG. 7) of the groove wall of the second receiving groove 213x.

[0063] In another embodiment, the quantity of the first host mounting magnets 213r2 can be designed based on product requirements and is not limited to the foregoing description.

[0064] As shown in FIG. 11, the quantity of the fastening brackets 213r1 can match the quantity of the first host mounting magnets 213r2. For example, there are also four fastening fittings 213r1. Referring to FIGS. 11 and 7, the fastening brackets 213r1 can be attached to the first bracket 213b, and since one fastening bracket 213r1 can correspond to one first host mounting magnet 213r2, each first host mounting magnet 213r2 is fixed between one fastening bracket 213r1 and the first bracket 213b.

[0065] In this embodiment, the fastening brackets 213r1 can securely fix the first host mounting magnets 213r2. In another embodiment, depending on product requirements, the fastening brackets 213r1 may not be provided.

[0066] Sealing bracket 213t and sealing ring 213s

[0067] As shown in FIGS. 8 and 12, the sealing bracket 213t is circularly surrounded and conforms to the shape around the first bracket 213b. The seal bracket 213 includes a bracket main portion 213p and several protrusions 213q convexly arranged on one side of the bracket main portion 213p. All the protrusions 213q may be spaced apart from each other. The previous protrusion 213q may be close to the outside of the bracket main portion 213p, and the next protrusion 213q adjacent to the previous protrusion 213q may be close to the inside of the bracket main portion 213p, and all the protrusions 213q may be arranged according to this rule. In another embodiment, all the protrusions 213q may not be arranged "alternately inside and outside (one inside one outside)". For example, all the protrusions 213q may be located outside or inside the bracket main portion 213p.

[0068] As shown in FIG. 8, the sealing ring 213s is circularly surrounded and conforms to the shape of the sealing bracket 213t. The sealing ring 213s is fixedly connected to the sealing bracket 213t, and the sealing ring 213s and the sealing bracket 213t may be integrally formed, for example, formed using an integrally injection molding technique. Since the sealing bracket 213t has a hard material and a large structural strength, it is difficult to deform. Since the sealing ring 213s has a soft material and a small structural strength, it is easy to deform. The component formed by the sealing ring 213s and the sealing bracket 213t may be called a sealing member.

[0069] FIG. 13 shows an assembled structure including the first frame body 213a, the first bracket 213b, the sealing bracket 213t, and the sealing ring 213s. FIG. 14 is a partially enlarged view of position B in FIG. 13.

[0070] As shown in FIG. 14, the groove 213n can be provided around the first bracket 213b. Referring to FIGS. 13 and 14, the groove 213n surrounds the first bracket 213b, and the groove 213n may surround the first receiving groove 213y and the second receiving groove 213x. The seal bracket 213t is fixed to the groove 213n, and the protrusion 213q can contact the bottom surface of the groove 213n. A gap is formed between the bottom surface of the groove 213n and the region of the bracket main portion 213p where the protrusion 213q is not provided.

[0071] The seal bracket 213t may be adhered to the groove 213n, for example, based on dispensing technology. The adhesive can be filled into the groove 213n, and the gap between the bottom surface of the groove 213n and the region of the bracket main portion 213p where the protrusion 213q is not provided is filled with the adhesive. Since the seal bracket 213t has several protrusions 213q spaced apart from each other, several gaps are formed between the seal bracket 213t and the bottom surface of the groove 213n. Thereby, the filling amount of the adhesive is ensured, and the adhesive strength is further ensured. Also, due to the presence of the gaps, the adhesive is less likely to overflow, and the yield of the dispensing technology can be ensured.

[0072] As shown in FIG. 14, the seal ring 213s is located on the side of the seal bracket 213t and far from the protrusion 213q. As will be described below, the seal ring 213s is used to seal the gap between the first bracket 213b and the second host housing 231 of the host 2.

[0073] In this embodiment, the groove 213n of the first frame body 213a is narrow, and the seal ring 213s is thin and soft (that is, the material hardness of the seal ring 213s is low). It is difficult to individually insert the seal ring 213s into the groove 213n. However, the seal ring 213s can be easily assembled to the first frame body 213a by connecting the soft seal ring 213s to the hard seal bracket 213t (the material hardness of the seal bracket 213t is high), and then arranging the seal bracket 213t in the groove 213n.

[0074] The first host circuit board assembly 212

[0075] As shown in FIG. 15, the first host circuit board assembly 212 may include a circuit board 212a and components arranged on the circuit board 212a. The circuit board 212a may be, for example, the main circuit board of host 2. The components of the circuit board 212a may include, for example, a ground spring 212b, a ground spring 212c, a ground spring 212d, a ground spring 212e, and a feed spring 212f. The ground springs 212b, 212c, 212d, and 212e may all be electrically connected to the ground point of the circuit board 212a, and the feed spring 212f may be connected to the power supply point of the circuit board 212a. The components of the circuit board 212a may further include a magnetic field sensor such as a Hall effect sensor or a magnetometer.

[0076] Referring to FIGS. 6 and 7, the first host circuit board assembly 212 can be attached on the side of the first bracket 213b and far from the opening of the first receiving groove 213y, and is partially located between the groove wall of the first receiving groove 213y and the groove wall of the second receiving groove 213x.

[0077] Display 211

[0078] As shown in FIG. 6, the display 211 may have a circular contour, and the edge of the display 211 may have a transitioning rounded corner portion. The display 211 may be connected to both the first frame body 213a and the first bracket 213b of the first host housing 213. The display 211 may face the first host circuit board assembly 212. The display 211 is electrically connected to the first host circuit board assembly 212 to realize image display. The display 211 may further have a touch control function.

[0079] As shown in FIGS. 4 and 6, the second portion 23 of the host 2 of the wearable device 1 may include a second host housing 231, a host battery 234, a third host housing 232, a second host circuit board assembly 235, a wireless charging coil 236, and a fourth host housing 233.

[0080] The second host housing 231

[0081] As shown in FIGS. 16, 17, and 18, the second host housing 231 may include a second bracket 231a, a second charging spring 231c, a first charging spring 231e, a foreign object detection spring 231d, a state detection magnet 231x, a state detection magnet 231w, and a second host mounting magnet 231v.

[0082] As shown in FIG. 19, the second bracket 231a may have a generally circular profile. A third receiving groove 231f and a fourth receiving groove 231g may be formed in a partial region of the second bracket 231a. The third receiving groove 231f and the fourth receiving groove 231g are spaced apart from each other, and the structures of the third receiving groove 231f and the fourth receiving groove 231g can be made substantially the same. When viewed from one side of the second bracket 231a, the partial region where the third receiving groove 231f and the fourth receiving groove 231g are formed is concave. When viewed from the other side of the second bracket 231a, the partial region where the third receiving groove 231f and the fourth receiving groove 231g are formed is convex.

[0083] Referring to FIGS. 4 and 19, the third receiving groove 231f is used to receive the first earphone 31, and the fourth receiving groove 231g is used to receive the second earphone 32. When closing the host 2, the third receiving groove 231f and the first receiving groove 213y surround a receiving space for receiving the first earphone 31, and the fourth receiving groove 231g and the second receiving groove 213x surround a receiving space for receiving the second earphone 32.

[0084] In this embodiment, the groove depth of the third receiving groove 231f may be deeper than the groove depth of the first receiving groove 213y, and the groove depth of the fourth receiving groove 231g may be deeper than the groove depth of the second receiving groove 213x. The groove depth can be defined as the maximum distance from the opening of the receiving groove (collectively referred to as the first receiving groove 213y, the second receiving groove 213x, the third receiving groove 231f, and the fourth receiving groove 231g) to the bottom groove of the receiving groove in the normal direction of the circuit board in the host 2.

[0085] In this embodiment, when opening the host 2, the earphone 3 can be attached to the first portion 21. A part of the first earphone 31 is located within the first receiving groove 213y, and the other part is located outside the first receiving groove 213y. The maximum distance between the part of the first earphone 31 that is located within the first receiving groove 213y and the surface where the opening of the first receiving groove 213y is located may be defined as the first distance. The maximum distance between the part of the first earphone 31 that is located outside the first receiving groove 213y and the surface where the opening of the first receiving groove 213y is located may be defined as the second distance. The first distance is shorter than the second distance. That is, when opening the host 2, a small part of the first earphone 31 is located within the first receiving groove 213y, and most of the first earphone 31 is exposed outside the first receiving groove 213y. Similarly, for the second earphone 32, when opening the host 2, a small part of the second earphone 32 is located within the second receiving groove 213x, and most of the second earphone 32 is located outside the second receiving groove 213x. This design will be further described below.

[0086] As shown in FIG. 19, two through holes 231z may be provided in the groove wall of the third receiving groove 231f. For example, the two through holes 231z may be arranged on the side of the third receiving groove 231f and on the side wall far from the fourth receiving groove 231g. There is a gap between the two through holes 231z. The two through holes 231z are respectively used for attaching the second charging spring 231c and the first charging spring 231e (further described below). A through hole 231y may be further provided in the groove wall of the third receiving groove 231f. For example, the through hole 231y may be generally located on the bottom wall of the third receiving groove 231f. The through hole 231y is spaced apart from the two through holes 231z. The through hole 231y is used for attaching the foreign object detection spring 231d (further described below).

[0087] As shown in FIG. 19, through holes 231z and 231y (hereinafter collectively referred to as through holes) may be provided in the groove wall of the fourth receiving groove 231g. The through holes in the groove wall of the fourth receiving groove 231g may be located on the side of the fourth receiving groove 231g and on the side far from the third receiving groove 231f. The through holes in the groove wall of the fourth receiving groove 231g and the through holes in the groove wall of the third receiving groove 231f may be basically symmetrically distributed on both sides of the symmetry plane of the second bracket 231a.

[0088] As shown in FIG. 19, a through hole 231b may be formed at the edge of the second bracket 231a. The through hole 231b may be located between the third receiving groove 231f and the fourth receiving groove 231g, and the distance between the through hole 231b and the third receiving groove 231f and the distance between the through hole 231b and the fourth receiving groove 231g may be basically equal. Referring to FIGS. 19 and 4, the through hole 231b is used to penetrate the latch portion 213d of the first portion 21 (further described below).

[0089] Charging spring

[0090] As shown in FIG. 18, there may be two second charging springs 231c and two first charging springs 231e. Referring to FIGS. 16 to 19, one second charging spring 231c and one first charging spring 231e are attached to the groove wall of the third receiving groove 231f. And the other second charging spring 231c and the other first charging spring 231e are attached to the groove wall of the fourth receiving groove 231g. Regarding the third receiving groove 231f, the second charging spring 231c may be located in one through hole 231z of the third receiving groove 231f, or the contact point of the second charging spring 231c may extend into the third receiving groove 231f through the through hole 231z. The first charging spring 231e may be located in the other through hole 231z of the third receiving groove 231f, or the contact point of the first charging spring 231e may extend into the third receiving groove 231f through the other through hole 231z. Regarding the fourth receiving groove 231g, the second charging spring 231c may be located in one through hole 231z of the fourth receiving groove 231g, or the contact point of the second charging spring 231c may extend into the fourth receiving groove 231g through the through hole 231z. The first charging spring 231e may be located in the other through hole 231z of the fourth receiving groove 231g, and the contact point of the first charging spring 231e may extend into the fourth receiving groove 231g through the other through hole 231z.

[0091] In this embodiment, both the two second charging springs 231c and the two first charging springs 231e can be electrically connected to the first host circuit board assembly 212 via a wiring (e.g., a flexible circuit board). The second charging spring 231c and the first charging spring 231e in the third receiving groove 231f are respectively used to elastically contact the two electrodes of the first earphone 31, and the second charging spring 231c and the first charging spring 231e in the fourth receiving groove 231g are respectively used to elastically contact the two electrodes of the second earphone 32 (further described below). Therefore, the first earphone 31 can be charged using the second charging spring 231c and the first charging spring 231e in the third receiving groove 231f, and the second earphone 32 can be charged using the second charging spring 231c and the first charging spring 231e in the fourth receiving groove 231g.

[0092] Foreign object detection spring

[0093] As shown in FIG. 18, there may be two foreign object detection springs 231d. Referring to FIGS. 16 to 19, one foreign object detection spring 231d may be attached to the groove wall of the third receiving groove 231f, and the foreign object detection spring 231d may be located in the through hole 231y of the third receiving groove 231f. The contact of the foreign object detection spring 231d may penetrate through the through hole 231y. The other foreign object detection spring 231d may be attached to the groove wall of the fourth receiving groove 231g, and the foreign object detection spring 231d may be located in the through hole 231y of the fourth receiving groove 231g. The contact of the foreign object detection spring 231d may penetrate through the through hole 231y.

[0094] In this embodiment, the foreign object detection spring 231d can be electrically connected to the first host circuit board assembly 212 via a wiring (for example, a flexible circuit board). The foreign object detection spring 231d is used to detect foreign objects (detection of the presence or absence of foreign objects entering the third receiving groove 231f and the fourth receiving groove 231g). The specific principle will be described below.

[0095] State detection magnet

[0096] As shown in FIG. 18, schematically, the state detection magnet 231x may be a single magnet. The state detection magnet 231x may have a single magnetic field direction, or may have at least two magnetic field directions (that is, a Halbach array is formed). The state detection magnet 231w may be a single magnet. The state detection magnet 231x may have a single magnetic field direction, or may have at least two magnetic field directions (that is, a Halbach array).

[0097] In another embodiment, the state detection magnet may be a Halbach array formed by joining at least two single magnets.

[0098] As shown in FIGS. 18 and 17, the state detection magnet 231x can be fixed on the side of the second bracket 231a and far from the opening of the third receiving groove 231f. The state detection magnet 231x may be adjacent to the groove wall of the third receiving groove 231f or may be near the through hole 231b. The state detection magnet 231w and the state detection magnet 231x are located on the same side of the second bracket 231a, and the state detection magnet 231w may be adjacent to the groove wall of the fourth receiving groove 231g.

[0099] The second host mounting magnet 231v

[0100] As shown in FIG. 18, schematically, the second host mounting magnet 231v may be a single magnet. The second host mounting magnet 231v may have a single magnetic field direction or may have at least two magnetic field directions (i.e., a Halbach array is formed).

[0101] In another embodiment based on product requirements, the second host mounting magnet 231v may alternatively be a Halbach array formed by joining at least two single magnets.

[0102] As shown in FIGS. 18 and 17, in this embodiment, for example, there may be two second host mounting magnets 231v, and the structures of the two second host mounting magnets 231v may be consistent, for example. Each of the two second host mounting magnets 231v can be fixed on the side of the second bracket 231a and far from the opening of the third receiving groove 231f. One of the second host mounting magnets 231v may be located on the side of the groove wall of the third receiving groove 231f and facing the fourth receiving groove 231g, and the other second host mounting magnet 231v may be located on the side of the groove wall of the fourth receiving groove 231g and facing the third receiving groove 231f.

[0103] In another embodiment, the quantity and position of the second host mounting magnet 231v can be designed based on product requirements. For example, one second host mounting magnet 231v may be attached to both sides of the groove wall of the third receiving groove 231f, or one second host mounting magnet 231v may be attached to both sides of the groove wall of the fourth receiving groove 231g.

[0104] Host battery 234

[0105] As shown in FIGS. 6 and 20, the host battery 234 can be fixed to the second bracket 231a and is located on the side of the second bracket 231a that is far from the opening of the third receiving groove 231f. The host battery 234 may be located between the groove wall of the third receiving groove 231f and the groove wall of the fourth receiving groove 231g. The host battery 234 can be electrically connected to the second host circuit board assembly 235 via wiring (e.g., a flexible circuit board), and the second host circuit board assembly 235 can be electrically connected to the first host circuit board assembly 212 via wiring (e.g., a flexible circuit board). Therefore, the host battery 234 can be electrically connected to the first host circuit board assembly 212.

[0106] Third host housing 232

[0107] As shown in FIG. 21, the third host housing 232 may have a substantially ring-shaped structure. The third host housing 232 may include a circumferential side wall 232a, an inner support platform 232b, and an inner support platform 232g. The circumferential side wall 232a may be surrounded in a ring shape. Both the inner support platform 232b and the inner support platform 232g are connected to the inside of the circumferential side wall 232a, and the inner support platform 232b and the inner support platform 232g are spaced apart from each other and can be generally located at both radial ends of the circumferential side wall 232a, for example.

[0108] As shown in FIG. 22, the third host housing 232 may have a rotating shaft mounting space 232f, which may be a groove formed in the inner support platform 232g and penetrating the circumferential side wall 232a. The rotating shaft mounting space 232f is used for mounting the rotating shaft assembly 22. As shown in FIG. 24, there may be a limiting groove 232h on the inner surface of the rotating shaft mounting space 232f, and the limiting groove 232h may be an opening of the rotating shaft mounting space 232f and may face an opening formed in the circumferential side wall 232a.

[0109] As shown in FIG. 22, the third host housing 232 may further have an open button mounting space. The open button mounting space may form a second opening 232c in the inner support platform 232b. The open button mounting space may further penetrate the circumferential side wall 232a and form a first opening 232d in the circumferential side wall 232a. The open button mounting space may face the rotating shaft mounting space 232f. For example, the open button mounting space and the rotating shaft mounting space 232f may be generally located at two opposite ends of the same diameter of the third host housing 232.

[0110] As shown in FIGS. 22 and 23, a groove 232i may be provided on the inner surface of the open button mounting space and on the inner surface opposite to the second opening 232c. The groove 232i may be an elongated groove. A guide groove 232j and a groove 232k may be provided on the inner surface of the open button mounting space and on the inner surface facing the first opening 232d. The guide groove 232j may be a round hole, and there may be two guide grooves 232j. The groove 232k may be runway-shaped and may be located between the two guide grooves 232j.

[0111] As shown in FIGS. 21 and 22, the third host housing 232 may further have a function button mounting through-hole 232e. The function button mounting through-hole 232e may open to the circumferential side wall 232a and may be located between the rotary shaft mounting space 232f and the first opening 232d. The function button mounting through-hole 232e is used for mounting the function button 24.

[0112] Open button 25

[0113] As shown in FIGS. 25 and 26, the open button 25 may include a cap 251, an elastic member 252, a button support 253, and a touch sensing spring 254.

[0114] As shown in FIG. 27, the cap 251 may have an integral frame structure. The cap 251 may include a pressing portion 251a, a bump 251b, a guide portion 251c, a bearing portion 251d, and a buckle 251e.

[0115] As shown in FIG. 27, the pressing portion 251a is substantially long strip-shaped, and the cross-section of the pressing portion 251a is substantially trapezoidal (the cross-section may be orthogonal to the length direction of the pressing portion 251a). The pressing portion 251a has a surface 251h, and the surface 251h is the surface where the upper base of the trapezoidal cross-section of the pressing portion 251a is located.

[0116] As shown in FIG. 27, the bump 251b may be provided on another surface of the pressing portion 251a that is far from the surface 251h of the pressing portion 251a. The surface of the bump 251b may be a curved surface, a flat surface, or formed by connecting a curved surface and a flat surface.

[0117] As shown in FIG. 27, the guide portion 251c may be cylindrical, for example, a cylinder. The guide portion 251c may be disposed convexly on the other surface of the pressing portion 251a, and the guide portion 251c and the bump 251b may be located on the same side of the pressing portion 251a. Two guide portions 251c may exist, and the two guide portions 251c may be located at both ends of the pressing portion 251a, respectively. The guide portion 251c is configured to guide the cap 251 when the cap 251 moves.

[0118] As shown in FIG. 27, the support portion 251d is connected on the side of the pressing portion 251a and on the side far from the surface 251h, and the support portion 251d is located between the two guide portions 251c. The support portion 251d may be substantially C-shaped. The two free ends of the C-shaped structure of the support portion 251d are connected to the pressing portion 251a. The support portion 251d and the pressing portion 251a may jointly form an open space 251g. The support portion 251d is used to support the button support 253.

[0119] As shown in FIG. 27, the buckle 251e may be connected to the support portion 251d and may be located in the open space 251g. The buckle 251e may face the bump 251b. The buckle 251e may have an assembly guide slope 251f. The buckle 251e has the latch structure in the above-described open button 25.

[0120] As shown in FIGS. 25 and 26, the elastic member 252 may be a spring. Alternatively, the elastic member 252 may be another component that can elastically expand and contract. Two elastic members 252 may exist. Referring to FIGS. 26 and 27, one elastic member 252 may be sleeved on one guide portion 251c, and the other elastic member 252 may be sleeved on the other guide portion 251c.

[0121] As shown in FIG. 28, the button support 253 may include a support 253a and two attachment ears 253b respectively connected to both sides of the support 253a. The support 253a may be flat. The attachment ears 253b may be bent plate-like. Each attachment ear 253b may include a first plate 253c and a second plate 253d, and the first plate 253c and the second plate 253d may be bent by approximately 90 degrees. The two first plates 253c of the two attachment ears 253b may be bent backward with respect to the second plate 253d. For example, as viewed from the figure, the left first plate 253c may be bent to the left with respect to the left second plate 253d, and the right first plate 253c may be bent to the right with respect to the right second plate 253d.

[0122] In another embodiment, alternatively, the two attachment ears may be bent in the same direction.

[0123] Referring to FIGS. 27 and 28, the button support 253 may be attached to the open space 251g of the cap 251, and the two attachment ears 253b of the button support 253 may be supported by the support portion 251d of the cap 251. The button support 253 may be further configured to fix the touch sensing spring 254 and limit the cap 251 when the cap 251 moves to the limit position.

[0124] In this embodiment, the touch sensing spring 254 has elastic deformation performance, can be compressed when a force is applied, and can be restored when the pressure disappears. As shown in FIG. 29, the touch sensing spring 254 may be, for example, a dome spring. The dome spring may include a polyethylene glycol terephthalate (PET) sheet, a metal dome (also called a button spring), an adhesive, a film, etc. The touch sensing spring 254 may have an elastic region 254a. The elastic region 254a is convex when not pressed, concave after being pressed, and can be restored to a convex shape when the pressure disappears. glycol terephthalate, PET) sheet, a metal dome (also called a button spring), an adhesive, and a film, etc. The touch sensing spring 254 may have an elastic region 254a. The elastic region 254a is convex when not pressed, concave after being pressed, and can be restored to a convex shape when the pressure disappears.

[0125] Referring to FIGS. 29 and 25, the touch-sensitive spring 254 can be fixed to the button support 253, and the elastic region 254a can face the bump 251b.

[0126] Above, the detailed structure of the open button 25 has been described. Below, the assembly of the open button 25 and the third host housing 232, and the compatibility between the open button 251 and the latch portion 213d of the first bracket 213b will be described.

[0127] As shown in FIGS. 30 and 31, the open button 25 may be attached to the open button mounting space of the third host housing 232. The state of the open button 25 shown in FIGS. 30 and 31 corresponds to the closed state of the host 2.

[0128] As shown in FIG. 31, the pressing portion 251a may be exposed from the first opening 232d of the open button mounting space. Referring to FIGS. 31 and 32, a part of the guide portion 251c may be located within the guide groove 232j, but does not contact the bottom surface of the guide groove 232j. As shown in FIG. 31, a portion of the support portion 251d that is spaced apart from the pressing portion 251a on the opposite side may be located within the groove 232k. The buckle 251e may be located outside the groove 232k of the open button mounting space. The cap 251 is axially movable with respect to the guide portion 251c. Due to the limiting effect of the first opening 232d on the pressing portion 251a, the cap 251 cannot basically move in other directions.

[0129] Referring to FIGS. 31 and 23, the elastic member 252 is sleeved on the guide portion 251c, and a part of the elastic member 252 may be located within the guide groove 232j. One end of the elastic member 252 contacts the pressing portion 251a, and the other end contacts the bottom surface of the guide groove 232j.

[0130] As shown in FIGS. 31 and 27, the button support 253 and the cap 251 are assembled and fixed in the open button mounting space. The support 253a of the button support 253 can be located in the open space 251g of the cap 251 and inserted into the groove 232i, and the support 253a may abut against the side wall of the groove 232i on the side close to the first opening 232d. The two mounting ears 253b of the button support 253 can respectively support (or overlap) on both sides of the support portion 251d. Each mounting ear 253b can abut against a portion of the support portion 251d that is spaced apart from the pressing portion 251a on the opposite side, thereby preventing the cap 251 from coming out of the open button mounting space. In other words, this is the limiting effect of the button support 253 on the cap 251 in the limiting position. Each mounting ear 253b may abut against the upper surface of the side wall of the groove 232k (the surface of the side wall facing the first opening 232d). Therefore, the button support 253 is restricted in the reverse direction by the side wall of the groove 232i and the side wall of the groove 232k, whereby the button support 253 is basically unable to move in the axial direction of the guide groove 232j.

[0131] As shown in FIG. 31, the touch sensing spring 254 may be fixed to the support 253a. The touch sensing spring 254 may be inserted into the groove 232i, or the touch sensing spring 254 may be disposed outside the groove 232i. The touch sensing spring 254 is located between the bump 251b and the buckle 251e, and the elastic region 254a of the touch sensing spring 254 faces the bump 251b. There is a specific interval between the touch sensing spring 254 and the buckle 251e.

[0132] As shown in FIG. 31, when the user presses the cap 251 from the pressing portion 251a, the cap 251 moves into the open button mounting space. In this case, the guide portion 251c moves into the guide groove 232j, and the elastic member 252 is gradually compressed. The support portion 251d slides into the groove 232k with respect to the mounting ear portion 253b, and the buckle 251e moves into the groove 232k. The bump 251b is close to the touch sensing spring 254. When the bump 251b compresses the elastic region 254a so that the elastic region 254a can be elastically deformed, the user can experience tactile feedback.

[0133] Conversely, when the pressing of the pressing portion 251a is released, the elastic member 252 rebounds and pushes the cap 251 to move it out of the open button mounting space. In this case, the guide portion 251c comes out of the guide groove 232j, and the elastic member 252 gradually extends. The support portion 251d slides out of the groove 232k with respect to the mounting ear portion 253b, and the buckle 251e comes out of the groove 232k. The bump 251b is far away from the touch sensing spring 254. When the portion of the support portion 251d that is spaced apart from the pressing portion 251a abuts against the mounting ear portion 253b again, the movement of the cap 251 stops.

[0134] FIG. 32 is a schematic cross-sectional view of an assembled structure including the first host housing 213, the second host housing 231, the third host housing 232, and the open button 25. To clearly show the assembled structure, a cross-sectional view of the first host housing 213 is not shown. FIG. 33 is a partially enlarged view of position B in FIG. 32.

[0135] Referring to FIGS. 33 and 16, the latch portion 213d on the first bracket 213b of the first host housing 213 can pass through the through hole 231b of the second host housing 231 and enter the open button mounting space of the third host housing 232. Also, the latch portion 213d and the buckle 251e can form a buckle connection, and the buckle connection is a detachable connection. Therefore, by the compatibility between the latch portion 213d and the buckle 251e, the first host housing 213 and the third host housing 232 can be maintained in a closed state. That is, the first portion 21 and the second portion 23 of the host 2 can be closed.

[0136] As shown in FIG. 33, when the user presses the pressing portion 251a, the buckle 251e moves and the buckle connection with the latch portion 213d is released. In this case, the first host housing 213 automatically opens by the drive of the rotary shaft assembly 22. When the user wants to latch the first portion 21 and the second portion 23, after the latch portion 213d contacts the buckle 251e, the latch portion 213d can push the buckle 251e until the latch portion 213d re - forms the buckle connection with the buckle 251e. In this case, the first portion 21 and the second portion 23 are latched.

[0137] In this embodiment, the reciprocating buckle 251e is designed so that the host 2 can be opened and closed using the open button 25. The touch - sensitive spring 254 is designed to provide tactile feedback when the host 2 is opened. Thereby, the user experience is improved.

[0138] In another embodiment, based on product requirements, an open button with a different structure can be used to open and latch the host. For example, the buckle can be disposed on the first support of the first host housing (the buckle corresponds to buckle 251e), and the latching portion is disposed on the open button (for example, the latching portion is disposed on the support portion of the cap, and the latching portion corresponds to latching portion 213d). Alternatively, for example, a torsion spring mechanism can be used to apply a repulsive force to the movable cap, and the buckle (or the latching portion) is designed on the cap of the open button, and the host is opened and closed by the fit between the buckle (or the latching portion) and the buckle (or the latching portion) on the first bracket of the first host housing. In another embodiment, the touch sensing spring may not be disposed.

[0139] Furthermore, referring to FIGS. 33 and 13, when the first portion 21 and the second portion 23 are closed, the first bracket 213b and the second host housing 231 are closed and fit with each other, and the sealing ring 213s of the first bracket 213b abuts around the second bracket 213b. Accordingly, the sealing ring 213s can seal the gap between the first bracket 213b and the second host housing 231, and prevent external water vapor from entering the interior of the host 2 through the gap.

[0140] In another embodiment, it can be easily understood that the sealing bracket and the sealing ring can be alternatively attached to the periphery of the second host housing 231. The assembled structure including the sealing bracket, the sealing ring, and the second host housing is the same as the above. Details are not described again here. When the first portion 21 and the second portion 23 are closed, the sealing ring of the second host housing 231 abuts around the first bracket to seal the gap between the second host housing 231 and the first bracket 213b.

[0141] Alternatively, different from the aforementioned seal design, in another embodiment, the seal bracket 213t is not arranged, and the seal ring is arranged only on the first bracket 213b or the second host housing 231. In this way, the gap between the first bracket 213b and the second host housing 231 can also be sealed.

[0142] As shown in FIGS. 6 and 21, the function button 24 is substantially cylindrical. The function button 24 is fitted into the function button mounting through hole 232e of the third host housing 232 and is movably connected to the third host housing 232. The function button 24 is movable within the function button mounting through hole 232e in the axial direction of the function button mounting through hole 232e, and / or the function button 24 can be rotated around the axis of the function button mounting through hole 232e. The function button 24 is configured to execute corresponding functions of the host 2, such as selection, confirmation, or switching of screen display, when pressed and / or rotated by the user.

[0143] As shown in FIGS. 34 and 6, the open button 25 and the function button 24 are assembled to the third host housing 232, and the third host housing 232 may be assembled to the second host housing 231. The circumferential side wall 232a of the third host housing 232 surrounds the second host housing 231 and the host battery 234. Referring to FIGS. 34 and 16, the second opening 232c of the third host housing 232 may communicate with the through hole 231b of the second bracket 231a. The wall of the second bracket 231a can avoid the rotation shaft mounting space 232f of the third host housing 232 for mounting the rotation shaft assembly 22.

[0144] The fourth host housing 233

[0145] As shown in FIGS. 35, 36, and 37, the fourth host housing 233 may be substantially disk-shaped. The fourth host housing 233 may include a third bracket 233a and a lens 233b. The third bracket 233a may be substantially disk-shaped. The third bracket 233a may have a mounting through-hole 233c. The lens 233b is attached to the third bracket 233a and covers the mounting through-hole 233c. The lens 233b may be configured to transmit light emitted by a photoplethysmography (PPG) sensor (described below) and light reflected by a human body.

[0146] The second host circuit board assembly 235

[0147] As shown in FIG. 6, the second host circuit board assembly 235 may include a circuit board, wires, and components disposed on the circuit board. The circuit board within the second host circuit board assembly 235 may be, for example, a sub-board of host 2. For example, components such as a PPG sensor may be disposed on the sub-board. As shown in FIG. 6, the second host circuit board assembly 235 may be attached to the fourth host housing 233.

[0148] Wireless charging coil 236

[0149] The wireless charging coil 236 is configured to implement wireless charging. The wireless charging coil 236 may be attached to the fourth host housing 233. The wireless charging coil 236 may be electrically connected to the circuit board within the second host circuit board assembly 235. For example, the pins of the wireless charging coil 236 may be soldered to the circuit board. As shown in FIG. 6, for example, the wireless charging coil 236 may be located around the second host circuit board assembly 235.

[0150] As shown in FIGS. 5 and 6, the fourth host housing 233 and the third host housing 232 can be assembled and fixed, and both the fourth host housing 233 and the third host housing 232 surround the second host housing 231, the host battery 234, the second host circuit board assembly 235, and the wireless charging coil 236. Both the second host circuit board assembly 235 and the wireless charging coil 236 may be located between the host battery 234 and the fourth host housing 233.

[0151] Rotating shaft assembly 22

[0152] As shown in FIGS. 38, 39, and 40, in Embodiment 1 of this embodiment, the rotating shaft assembly 22 may include a shaft sleeve 222, a bump matching member 227, a driven member 229, a gasket 225, an elastic member 228, a first shaft 221, a limiting member 226, a second shaft 223, and a shaft contact member 224.

[0153] As shown in FIG. 41, the shaft sleeve 222 may have a substantially hollow rectangular parallelepiped structure. The shaft sleeve 222 may have a first outer surface 222a and a second outer surface 222f, which are two outer surfaces that intersect on the shaft sleeve 222. In the host 2, the side where the first outer surface 222a of the shaft sleeve 222 is located can be fixedly connected to the first frame body 213a of the first portion 21 and is covered by the first portion 21 and is not visible (further described below). When the host 2 is in the closed state, the second outer surface 222f may be visible as the outer surface of the host 2 (further described below).

[0154] As shown in FIGS. 41 and 42, the internal cavity of the shaft sleeve 222 has a spacer plate 222n, and the spacer plate 222n divides the internal cavity into a first internal cavity 222i and a second internal cavity 222j. A through hole 222s is provided in the spacer plate 222n, and the through hole 222s communicates the first internal cavity 222i and the second internal cavity 222j.

[0155] As shown in FIGS. 42 and 43, a chute 222q and a plurality of matching grooves 222p can be provided on the side surface of the spacer plate 222n on the side facing the first internal cavity 222i. The chute 222q and all the matching grooves 222p can be connected to form a ring, and the ring can be located around the through hole 222s and concentric with the through hole 222s.

[0156] As shown in FIG. 42, the matching grooves 222p may be concave, and the inner surface of each matching groove 222p may be a curved surface. All the matching grooves 222p can be arranged along an arc and may be divided into two groups. The two groups are spaced apart from each other, and some of the matching grooves 222p within each group are continuously connected. The number of the matching grooves 222p in the two groups is constant, for example, three in each group. In each group, two adjacent matching grooves 222p have a common side wall. The side surface of the side wall may have a rounded corner portion. The upper surface of the side wall may be recessed with respect to the surface where the opening of the matching groove 222p is located (that is, a step may occur).

[0157] As shown in FIGS. 42 and 43, the chute 222q may be a long strip-shaped groove, and the extension path of the chute 222q may be an arc. There may be two chutes 222q, and both of them may be on the same circumference. The positions of the two chutes 222q on the circumference may be symmetric, and the two central angles corresponding to the two chutes 222q (including the angle formed by the line connecting both ends of the chute 222q and the center of the circumference) may be diagonal. The two chutes 222q and the two groups of alignment grooves 222p are alternately arranged along the circumference. Specifically, the two chutes 222q and the two groups of alignment grooves 222p are arranged around the circumference in the order of one chute 222q, one group of alignment grooves 222p, the other chute 222q, and the other group of alignment grooves 222p. One end of each chute 222q is connected to one alignment groove 222p of one group of alignment grooves 222p, and the other end of the chute 222q is connected to one alignment groove 222p of the other group of alignment grooves 222p. A common side wall may exist between the chute 222q and the alignment groove 222p. Alternatively, there may be no side wall between the chute 222q and the alignment groove 222p, and the chute 222q communicates with the alignment groove 222p.

[0158] The designs of the quantity, structure, position, etc. of the chute 222q described above, and the designs of the quantity, structure, position, etc. of the alignment groove 222p are merely examples for illustration, and this embodiment is not limited thereto.

[0159] In this embodiment, the chute 222q and the alignment groove 222p are used to fit the bumps on the bump alignment member 227 (described below). In another embodiment, the spacer plate 222n may not be provided with the chute 222q and the alignment groove 222p, and the rotating shaft may not be provided with the bump alignment member 227.

[0160] As shown in FIGS. 41 and 42, an end portion of the first internal cavity 222i that is far from the spacer plate 222n can penetrate the shaft sleeve 222 to form an opening 222h. As shown in FIGS. 41 and 43, the inner surface of the first internal cavity 222i may include an arc surface a and two flat surfaces b, and the two flat surfaces b are respectively connected to two opposite sides of the arc surface a. The arc surface a is close to the first outer surface 222a, and the flat surface b is far from the first outer surface 222a. In other words, the first internal cavity 222i is substantially arch-shaped, and the opening 222h is also substantially arch-shaped.

[0161] As shown in FIG. 41, the second internal cavity 222j may include a first region 222c and a second region 222d that communicate with each other. The first region 222c is located between the spacer plate 222n and the second region 222d. The first region 222c forms an opening 222b in the first outer surface 222a. The second region 222d may be a circular hole having an axis facing the spacer plate 222n. The second region 222d forms an opening 222e in the first outer surface 222a, and an end portion of the second region 222d that is far from the spacer plate 222n may penetrate the shaft sleeve 222.

[0162] As shown in FIG. 41, a groove 222k and a groove 222m may be further provided on the first outer surface 222a of the shaft sleeve 222. The groove 222k and the groove 222m are respectively located on both opposite sides of the first region 222c. Alternatively, the groove 222m may be located above the second region 222d. The side of the groove 222k facing the groove 222m communicates with the first region 222c, and the side of the groove 222m facing the groove 222k communicates with the first region 222c.

[0163] As shown in FIG. 44, the limiting protrusion 222r is disposed on the side of the shaft sleeve 222 opposite to the first outer surface 222a. The structure of the limiting protrusion 222r can be designed as required and is not limited to this embodiment. In this embodiment, the limiting protrusion 222r may be located on the side of the first internal cavity 222i of the shaft sleeve 222. In another embodiment, the position of the limiting protrusion 222r may be flexibly determined as required and is not limited to the side of the spacer plate 222n close to the first internal cavity 222i. Alternatively, the limiting protrusion 222r may not be provided.

[0164] As shown in FIG. 44, a mounting groove 222g may be further provided on the surface of the shaft sleeve 222, an opening 222h is formed therein, and the mounting groove 222g may communicate with the first internal cavity 222i. Similarly, another mounting groove 222g may be provided on the surface of one end of the shaft sleeve 222 opposite to the opening 222h, and the other mounting groove 222g may communicate with the second region 222d. The mounting groove 222g is used for mounting the shaft contact member 24 (further described below). In another embodiment, the position of the mounting groove 222g may be flexibly determined as required and is not limited to the above description. Alternatively, the mounting groove 222g may not be provided.

[0165] As shown in FIG. 45, the bump alignment member 227 may be substantially cylindrical. Bumps 227a may be provided on the lower surface of the bump alignment member 227, and the bumps 227a may have a curved surface protruding from the lower surface. At least one bump 227a exists. For example, two bumps 227a are shown in FIG. 45. When at least two bumps 227a exist, the bumps 227a may be arranged at equal intervals along the circumference. The bumps 227a are used to fit the chute 222q and the alignment groove 222p on the spacer plate 222n of the shaft sleeve 222 (further described below).

[0166] As shown in FIG. 45, the bump alignment member 227 may further have a through hole 227b, and the through hole 227b may penetrate the bump alignment member 227 in the direction of the center line of the bump alignment member 227. In this embodiment, the inner surface of the through hole 227b may include an arc surface 227c, a flat surface 227d, and a flat surface 227e. Two sides of the arc surface 227c are respectively connected to the flat surface 227d and the flat surface 227e, and an included angle may be formed between the flat surface 227d and the flat surface 227e. The bump alignment member 227 can be attached to the first shaft 221, and the through hole 227b can cooperate with the first shaft 221. The through hole 227b having the above-described structure allows the bump alignment member 227 to move along the first shaft 221 but does not rotate with respect to the first shaft 221 (further described below).

[0167] In another embodiment, the rotating shaft may not be provided with the bump alignment member 227.

[0168] As shown in FIGS. 46 and 47, the driven member 229 may be substantially block-shaped or sheet-shaped. The driven member 229 has a through hole 229g, and the axis of the through hole 229g is in the substantially thickness direction of the driven member 229. One surface on one side in the thickness direction of the driven member 229 may be called a shaft alignment surface. The shaft alignment surface may form a two-step ladder. The shaft alignment surface may include a first inclined surface 229a, a flat surface 229b, and a second inclined surface 229c that are sequentially connected (in order to emphasize the three regions, the three regions are represented by hatching). The normal line of the flat surface 229b may be in the axial direction of the through hole 229g. The first inclined surface 229a and the flat surface 229b form an obtuse angle. The flat surface 229b and the second inclined surface 229c form an obtuse angle. There is a step between the first inclined surface 229a and the second inclined surface 229c. The side on the first inclined surface 229a and far from the flat surface 229b may be higher than the flat surface 229b, and the side on the second inclined surface 229c and far from the flat surface 229b may be lower than the flat surface 229b.

[0169] As shown in FIG. 46, the shaft alignment surface of the driven member 229 may include two first inclined surfaces 229a, two flat surfaces, and two second inclined surfaces 229c. The shaft alignment surface may form two two-step ladders and may extend downward step by step in the circumferential direction of the shaft alignment surface. The two two-step ladders may be arranged at intervals from each other. For example, the two two-step ladders may be centrosymmetric with respect to the through hole 229g.

[0170] As shown in FIG. 48, the outer surface of the driven member 229 with the normal line of the through hole 229g may be substantially arched. The outer surface may include an arc surface 229h, an arc surface 229i, a flat surface 229d, a flat surface 229e, and a flat surface 229f. The arc surface 229h and the arc surface 229i may become the apexes of the arch, and both may be substantially symmetric with respect to the axis of the through hole 229g. The flat surface 229e may function as the bottom of the arch. The flat surface 229f may be located between the arc surface 229h and the flat surface 229e, and one side of the flat surface 229f may be connected to the arc surface 229h. The flat surface 229d may be located between the arc surface 229i and the flat surface 229e, and one side of the flat surface 229d may be connected to the arc surface 229i.

[0171] The driven member 229 may be attached to the first internal cavity 222i of the shaft sleeve 222. Since the outer surface of the driven member 229 has the aforementioned structure, the driven member 229 can move within the first internal cavity 222i without rotating (further described below). In another embodiment, as long as the design requirement that the driven member 229 moves within the first internal cavity 222i without rotating is satisfied, the outer surface of the driven member 229 may have other appropriate structures.

[0172] As shown in FIGS. 49 and 50, the gasket 225 may be substantially sheet-like. The gasket 225 may include a first portion 225a and a second portion 225b. The first portion 225a and the second portion 225b may be connected (for example, they may be connected as a whole). The first portion 225a and the second portion 225b can form an included angle d, for example. The included angle d is, for example, approximately 90°. The first portion 225a and the second portion 225b do not have to be on the same plane, and the second portion 225b may form an included angle e with the plane on which the first portion 225a is located. For example, as seen from FIG. 50, the second portion 225b may be inclined upward with respect to the first portion 225a and form an included angle e with the plane on which the first portion 225a is located (in other words, it may form an included angle e with the first portion 225a).

[0173] The first portion 225a of the gasket 225 can be fixed within the first cavity 222i of the shaft sleeve 222, and the second portion 225b of the gasket 225 can abut against the plane 229e of the driven member 229 (to be further described below).

[0174] As shown in FIG. 51, the first shaft 221 may have an integral structure and may include a first portion 221a, a second portion 221b, and a third portion 221c that are connected in sequence. In FIG. 51, the first portion 221a, the second portion 221b, and the third portion 221c are each distinguished by using three dotted boxes, but this is only for the purpose of intuitively showing the approximate positions of the first portion 221a, the second portion 221b, and the third portion 221b, and it should be understood that it is not intended to strictly define the boundaries between the first portion 221a, the second portion 221b, and the third portion 221c.

[0175] As shown in FIGS. 51 and 52, the first portion 221a may include an end portion 221d and a main portion 221g, and both the end portion 221d and the main portion 221g may be substantially cylindrical. The main portion 221g is connected to the second portion 221b, and the end portion 221d is far from the second portion 221b. A slot 221e may be formed between the end portion 221d and the main portion 221g, and the slot 221e may surround the axis of the end portion 221d. The bottom surface of the slot 221e is lower than the outer peripheral surfaces of the end portion 221d and the main portion 221g.

[0176] As shown in FIGS. 51 and 53, an end of the main portion 221g that is close to the end portion 221d may form a concave space 221f. The concave space 221f may have a plane 221i and a plane 221j. The plane 221i may be substantially parallel to the axis of the end portion 221d, the plane 221j may be substantially orthogonal to the axis of the end portion 221d, and the plane 221i may be substantially orthogonal to the plane 221j. The plane 221j may be connected to the outer peripheral surface of the main portion 221g and the plane 221i. Both sides of the plane 221i may be connected to the outer peripheral surface of the main portion 221g. The concave space 221f may be formed by cutting the outer peripheral surface of the main portion 221g.

[0177] As shown in FIG. 53, two concave spaces 221f may exist, and the two concave spaces 221f may have a predetermined interval. In another embodiment, the quantity of the concave spaces 221f is not limited to the above, and may be, for example, one or more.

[0178] In this embodiment, an end of the main portion 221g that is close to the end portion 221d may fit into the through hole 227b of the bump alignment member 227, and the surface of the end of the main portion 221g may fit into the through hole 227b, whereby the bump alignment member 227 can move along the main portion 221g but cannot rotate (further described below). In another embodiment, when the bump alignment member 227 is not provided, an end of the main portion 221g that is close to the end portion 221d does not have to form the concave space 221f.

[0179] As shown in FIGS. 51 to 53, the second portion 221b may have an outer peripheral surface 221h, and the outer peripheral surface 221h may be a substantially cylindrical surface. In this embodiment, the second portion 221b is attached to the first internal cavity 222i of the shaft sleeve 22, and the outer peripheral surface 221h rotates to fit the arc surface a of the first internal cavity 222i.

[0180] As shown in FIGS. 52 and 53, a two-step ladder may be formed on the surface of the second portion 221b that faces the end portion 221d (the surface of the two-step ladder is shown hatched in FIG. 53). The two-step ladder has the same (or substantially the same) structure as the two-step ladder of the driven member 229 described above. Referring to FIGS. 52, 46, and 40, the second portion 221b is assembled with the driven member 229 to form a cam mechanism, and the surface of the two-step ladder of the second portion 221b can move to fit the surface of the two-step ladder of the driven member, whereby the driven member 229 performs a specific operation (further described below).

[0181] The structure of the third portion 221c can be designed as required and is not limited to the structure shown in FIGS. 51 to 53. The third portion 221c is fixed to the inner support platform 232g of the third host housing 232 (further described below). As shown in FIG. 40, the elastic member 228 is a component that can apply a repulsive force and may be, for example, a spring.

[0182] Above, the structures of the shaft sleeve 222, the bump alignment member 227, the first shaft 221, the driven member 229, and the elastic member 228 have been described. Below, the assembled structure including these components will be described.

[0183] As shown in FIGS. 39, 45, 43, and 46, the driven member 229, the elastic member 228, and the bump alignment member 227 may all be located within the first internal cavity 222i of the shaft sleeve 222. The bump alignment member 227 is close to the spacer plate 222n of the shaft sleeve, and the bump 227a of the bump alignment member 227 may face the chute 222q (or the alignment groove 222p) of the spacer plate 222n. The driven member 229 is away from the spacer plate 222n, and the two-step ladder of the driven member 229 retreats onto the spacer plate 222n. Both the arc surface 229h and the arc surface 229i of the driven member 229 face and can be fitted to the arc surface 23a of the first internal cavity 222i. Both the flat surface 229e and the flat surface 229f of the driven member 229 face and can be fitted to the flat surface b of the first internal cavity 222i. Therefore, the driven member 229 can move within the first internal cavity 222i, but cannot rotate with respect to the first internal cavity 222i.

[0184] It is easily understood that the above-described matching structure including the driven member 229 and the first internal cavity 222i is merely an example. In another embodiment, if necessary, another suitable matching structure may be designed so that the driven member 229 can only move within the first internal cavity 222i but cannot rotate with respect to the first internal cavity 222i (an explanation that the driven member 229 is rotatable with the shaft sleeve 222 will be provided below).

[0185] As shown in FIG. 39, the elastic member 228 is located between the driven member 229 and the bump alignment member 227. One end of the elastic member 228 may abut against the driven member 229, and the other end may abut against the bump alignment member 227.

[0186] As shown in FIGS. 51, 39, 41, and 42, both the main portion 221g of the first portion 221a of the first shaft 221 and the second portion 221b of the first shaft 221 may be located within the first internal cavity 222i of the shaft sleeve 222. The end 221d of the first portion 221a may be located in the first region 222c of the second internal cavity 222j of the shaft sleeve 222, and part or all of the slot 221e of the first portion 221a may be located in the first region 222c.

[0187] As shown in FIGS. 51, 46, 45, and 42, the first portion 221a may pass through the through hole 229g of the driven member 229, the elastic member 228, the through hole 227c of the bump alignment member 227, and the through hole of the spacer plate 222n. The two-step ladder of the second portion 221b may face the two-step ladder of the driven member 229. The two-step ladder of the second portion 221b can cooperate with the two-step ladder of the driven member 229, whereby the second portion 221b and the driven member 229 form a cam mechanism.

[0188] As shown in FIGS. 53 and 45, the plane 221i of one concave space 221f of the main portion 221g can be opposed and adapted to the plane 227d of the through hole 227b of the bump alignment member 227. The plane 221i of the other concave space 221f of the main portion 221g can be opposed and adapted to the arc surface 227e of the through hole 227b of the bump alignment member 227. The outer peripheral surface of the main portion 221g can be opposed and adapted to the arc surface 227c of the through hole 227b of the bump alignment member 227. Therefore, the bump alignment member 227 can move along the main portion 221g within the first internal cavity 222i, but cannot rotate around the main portion 221g.

[0189] It is easily understood that the above-described matching structure including the main portion 221g and the bump alignment member 227 is merely an example. In another embodiment, if necessary, another appropriate matching structure may be designed so that the bump alignment member 227 can only move along the main portion 221g and cannot rotate around the main portion 221g.

[0190] Referring to FIGS. 51 and 39, the third portion 221c of the first shaft 221 may be located outside the shaft sleeve 222.

[0191] FIG. 54 can intuitively show an assembled structure including the first shaft 221, the driven member 229, the elastic member 228, and the bump alignment member 227.

[0192] As shown in FIGS. 39 and 50, the gasket 225 can be fixed to the first internal cavity 222i of the shaft sleeve 222. The first portion 225a of the gasket 225 may be located between the third portion 221c of the first shaft 221 and the shaft sleeve 222. The second portion 225b of the gasket 225 may be located between the driven member 229 and the shaft sleeve 222. The second portion 225b can always be in contact with the driven member 229 during the entire movement process of the driven member 229. Since the second portion 225b is inclined with respect to the first portion 225a, the second portion 225b can press the driven member 229 against the inner surface of the first internal cavity 222i of the shaft sleeve 222, whereby the driven member 229 closely fits the inner surface of the first internal cavity 222i. Thereby, it is possible to prevent rattling of the driven member 229 during movement due to manufacturing errors. In another embodiment, the gasket 225 may not be provided based on actual requirements.

[0193] As shown in FIG. 55, the limiting member 226 is basically plate-shaped, and the structure of the limiting member 226 may be designed as required. For example, the contour of the limiting member 226 may conform to the shape of the first region 222c of the second internal cavity 222i of the shaft sleeve 222. An opening 226a may be formed in the limiting member 226.

[0194] Referring to FIGS. 39, 52, and 55, the restricting member 226 may be located in the first region 222c of the second internal cavity 222i of the shaft sleeve 22 and may contact the spacer plate 222n of the shaft sleeve 22. The edge of the opening 226a of the restricting member 226 may be snap - fitted into the slot 221e of the first portion 221a of the first shaft 221. Accordingly, the restricting member 226 can restrict the first shaft 221, prevent the first shaft 221 from coming off the shaft sleeve 22, and ensure that the position of the first shaft 221 relative to the shaft sleeve 22 does not change. Thereby, the assembly of the driven member 229, the elastic member 228, and the bump alignment member 227 with the shaft sleeve 22 can be performed more reliably.

[0195] As shown in FIGS. 56, 57, and 58, the second shaft 223 may have an integral structure and may include a first portion 223a, a second portion 223b, and a third portion 223c that are connected in sequence. In FIG. 56, the first portion 223a, the second portion 223b, and the third portion 223c are each distinguished by using three dotted - line boxes, but this is only for the purpose of intuitively showing the approximate positions of the first portion 223a, the second portion 223b, and the third portion 223b, and it should be understood that it is not intended to strictly define the boundaries between the first portion 223a, the second portion 223b, and the third portion 223c.

[0196] As shown in FIGS. 56 to 58, both the first portion 223a and the second portion 223b may be substantially cylindrical. The structure of the third portion 223c may be designed as needed. FIGS. 56 to 58 are merely schematic diagrams. The channel 223d may be formed in the second shaft 223 and may basically extend in the axial direction of the first portion 223a. The channel 223d may penetrate both radial ends of the first portion 223a and one end of the second portion 223b and the third portion 223c in the radial direction. Accordingly, the first portion 223a is divided into two parts completely separated by the channel 223d, and the second portion 223b and the third portion 223c may each be divided into two connected parts by the channel 223d.

[0197] As shown in FIGS. 57 and 58, there is a groove 223e at the end of the first portion 223a on the side far from the second portion 223b, and the groove 223e may specifically be provided on the inner surface of the channel 223d. Two grooves 223e may exist. Each part of the first portion 223a has one groove 223e, and the openings of the two grooves 223e face each other.

[0198] In this embodiment, the flexible circuit board may be attached to the second shaft 223. Details will be described below.

[0199] FIGS. 59, 60, and 61 show a schematic configuration of the flexible circuit board 26 that is bent and wound (the flexible circuit board 26 is bent and wound after being attached to the second shaft 223). Actually, the flexible circuit board 26 is in a developed state before being attached to the second shaft 223, and in the developed state, the flexible circuit board 26 may have a substantially long strip-like structure.

[0200] As shown in FIGS. 59 to 61, the flexible circuit board 26 may include an electrical connection end 261 and an electrical connection end 263. After the flexible circuit board 26 is unfolded, the electrical connection end 261 and the electrical connection end 263 respectively become two ends in the extension direction of the flexible circuit board 26. Both the electrical connection end 261 and the electrical connection end 263 are configured to transmit electrical signals, and the electrical connection end 261 and the electrical connection end 263 may each include a connector.

[0201] For example, the electrical connection end 261 can be connected to the first host circuit board assembly 212. For example, the connector of the electrical connection end 261 is connected to the connector of the circuit board 212a of the first host circuit board assembly 212, and the flexible circuit board 26 can be electrically connected to the first host circuit board assembly 212.

[0202] For example, the electrical connection end 263 can be electrically connected to the second host circuit board assembly 235 and a flexible circuit board connecting the function button 24 and the motor (for example, the function button 24 and the motor may share the same flexible circuit board). The flexible circuit board connecting the function button 24 and the motor may be fixed, for example, on the side of the second bracket 231a and far from the opening of the third receiving groove 231f. A magnetic field sensor (for example, a Hall effect sensor or a magnetometer) may be further disposed on the flexible circuit board. For example, there may be two magnetic field sensors, and the two magnetic field sensors may be close to the groove wall of the third receiving groove 231f and the groove wall of the fourth receiving groove 231g respectively.

[0203] As shown in FIGS. 59 to 61, the flexible circuit board 26 may further include a connection portion 264 and a mounting portion 262. The connection portion 264 connects the mounting portion 262 to the electrical connection end 261, and the mounting portion 262 is further connected to the electrical connection end 263.

[0204] As shown in FIGS. 59 to 61, the connection part 264 has a grounding part 264a and a restricting part 264b. For example, the grounding part 264a may be close to the electrical connection end 261, and the restricting part 264b may be far from the electrical connection end 261. The restricting part 264b may be, for example, in the shape of a lug. For example, two restricting parts 264b may exist, and the two restricting parts 264b are respectively located at the edge parts on both sides of the connection part 264.

[0205] As shown in FIGS. 59 to 61, the mounting part 262 is used to fit with the second shaft 223 and may be in a bent and wound state. For example, as seen from FIG. 59, a part of the mounting part 262 is folded in half to form a layer, and thus can be called a laminated part. Another part of the mounting part 262 may be connected to the laminated part and wound in a loop shape, and thus can be called a winding part. The winding part may be located at one end of the laminated part. In FIG. 59, the mounting part 262 is shown by a dashed box, but it is understood that this is only for visually showing the general position of the mounting part 262 and is not intended to strictly define the boundary of the mounting part 262.

[0206] In this embodiment, the number of wires in the flexible circuit board 26 needs to meet the design requirements, and the width of the flexible circuit board 26 affects the number of wires in the flexible circuit board 26. Therefore, the width (for example, the minimum width) of the flexible circuit board 26 needs to meet the design requirements. FIGS. 59 and 62 schematically show the width W1 of the winding part of the mounting part 262 of the flexible circuit board 26 and the folding width W2 of the laminated part (the unfolded width of the laminated part is about 2×W2). The width W1 of the winding part and the folding width W2 of the laminated part can be designed as required.

[0207] As shown in FIGS. 59 to 61, the flexible circuit board 26 may further include a separation bracket 266. The structure of the separation bracket 266 may be designed as desired, for example, in a substantially flat plate shape. The quantity of the separation brackets 266 may be determined as required. One or at least two separation brackets may exist. The separation bracket 266 is sandwiched between the folding layers of the laminated portion, and each layer may be connected (e.g., adhered) to the separation bracket 266.

[0208] In this embodiment, the unfolded width of the laminated portion is generally small, and it is difficult to maintain the folded shape after folding the laminated portion (the folding layers are prone to tilting). However, since the separation bracket 266 is provided, the laminated portion can maintain the folded configuration. Further, the separation bracket 266 can also limit the bending radius of the laminated portion to avoid damage caused by excessive bending of the laminated portion. In another embodiment, the separation bracket 266 may not be provided based on product requirements. As shown in FIGS. 59 and 61, the flexible circuit board 26 may further include a protective layer 265. For example, the protective layer 265 may be attached to the surface of the laminated portion and may be located at the end of the laminated portion, which is far from the winding portion. The material of the protective layer 265 may be, for example, mylar. In this embodiment, the position and material of the protective layer 265 can be alternatively designed based on product requirements and are not limited to the above description.

[0209] In this embodiment, the laminated portion can be fixed to the third host housing 232, and the protective layer 265 can separate the laminated portion from the third host housing 232 to prevent damage to the flexible circuit board 26 caused by friction between the laminated portion and the third host housing 232 (further described below). Also, the protective layer 265 can further strengthen the structure of the laminated portion. In another embodiment, the protective layer 265 may not be provided based on product requirements.

[0210] Figures 62 and 63 show the assembly structure of the flexible circuit board 26 and the second shaft 223. When assembling the flexible circuit board 26 and the second shaft 223, the laminated portion of the mounting portion 262 of the flexible circuit board 26 in the unfolded state can be folded in half, and the winding portion of the mounting portion 262 may remain in the unfolded state. Referring to FIGS. 62, 63, and 58, the entire mounting portion 262 is fitted into the groove 223d of the second shaft 223 from the end of the third portion 223c of the second shaft 223, whereby the winding portion of the mounting portion 262 is positioned on the first portion 223a of the second shaft 223. In this case, the winding portion may be bent so as to wind around the first portion 223a, and the number of windings may be determined according to actual requirements. When the winding is completed, a predetermined distance exists between the end of the first portion 223a, which is far from the second portion 223b, and the winding portion (that is, the winding portion does not cover the end of the first portion 223a). Thereby, it is possible to prevent the winding portion from being damaged and affecting the service life (which will be further described below). Both the electrical connection end 261 and the electrical connection end 263 of the flexible circuit board 26 are located outside the second shaft 223. The electrical connection end 261 and the electrical connection end 263 may be bent so as to fit into the internal space of the host 2. Alternatively, the protective layer 265 and the connection portion 264 of the flexible circuit board 26 may be exposed outside the second shaft 223.

[0211] In this embodiment, the inner ring of the winding portion of the flexible circuit board 26 is in direct contact with the first portion 223a of the second shaft 223, and the joint between the winding portion and the laminated portion may be fixed, for example, by adhering to the first portion 223a. Other regions of the winding portion may remain in a natural winding state without being fixed, and may be loosened to increase the diameter of the portion or tightened to decrease the diameter of the portion.

[0212] In this embodiment, since the wound portion of the flexible circuit board 26 is wound around the first portion 223a of the second shaft 223, the width W1 of the wound portion can be secured by using the axial dimension of the first portion 223a. Since the stacked portion of the flexible circuit board 26 is housed in the groove 223d of the second shaft 223 in the folded state, the stacked portion with a deployment width of 2×W2 can be housed only in the narrow space of the second shaft. As a result, miniaturization of the second shaft 223 becomes easy, which is advantageous for realizing miniaturization of the host 2.

[0213] In summary, the second shaft 223 having the above-described structure is designed, and the flexible circuit board 26 is attached to the second shaft 223 in a manner that it is bent and wound, whereby electrical connection of the host 2 can be realized. Also, the width of the flexible circuit board 26 can satisfy the design requirements, and miniaturization of the host 2 can be realized.

[0214] In this embodiment, the second shaft 223 to which the flexible circuit board 26 is attached may be attached to the second internal cavity 222j of the shaft sleeve 222.

[0215] Referring to FIGS. 57 and 67, the first portion 223a of the second shaft 223 is located in the first region 222c of the shaft sleeve 222. The second portion 223b of the second shaft 223 may be located in the second region 222d of the second internal cavity 222j. The outer peripheral surface of the second portion 223b can rotate and conform to the inner surface of the second region 222d. In other words, the outer peripheral surface of the second portion 223b may (including a minute gap) contact the inner surface of the second region 222d, or may not contact it, and the inner surface of the second region 222d can rotate with respect to the outer peripheral surface of the second portion 223b. The third portion 223c of the second shaft 223 is located outside the shaft sleeve 222.

[0216] As shown in FIGS. 59, 64, and 67, the wound portion of the flexible circuit board 26 is located in the first region 222c. A part of the laminated portion of the flexible circuit board 26 is located in the first region 222c and the second region 222d, and the other part of the laminated portion is located outside the shaft sleeve 222. Both the electrical connection end 261 and the electrical connection end 263 of the flexible circuit board 26 are located outside the shaft sleeve 222. The connection portion 264 of the flexible circuit board 26 can pass through the opening of the first region 222c, and both the grounding portion 264a and the limiting portion 264b of the connection portion 264 are located outside the shaft sleeve 222.

[0217] Referring to FIG. 64, in this embodiment, the electrical connection end 261 of the flexible circuit board 26 can be fixed to the first host circuit board assembly 212, and the electrical connection end 261 can move together with the first part 21 of the host 2. Therefore, the connection portion 264 connected to the electrical connection end 261 also moves together with the electrical connection end 261. In order to enable the connection portion 264 to move based on the design requirements, it is necessary to ensure that the movement of the connection portion 264 is controllable and avoid fatigue damage to the connection portion 264. To limit the connection portion 264, a clamp member may be used to clamp the connection portion 264. Details will be described below.

[0218] As shown in FIG. 65, the clamp member 27 can be substantially sheet-shaped, and a clamp gap 27a can be provided in the clamp member 27. The clamp gap 27a can be substantially linear. One end of the clamp gap 27a penetrates the clamp member 27, and the other end does not penetrate the clamp member 27. The clamp member 27 may be made of a material with excellent insulation and moisture resistance such as mylar.

[0219] As shown in FIGS. 65 and 66, the connecting portion 264 can penetrate through the clamping gap 27a of the clamping member 27, the restricting portion 264b of the connecting portion 264 can be clamped to the edge of the clamping gap 27a, the clamping member 27 can be fixed to the grooves 222k and 222m of the shaft sleeve 222, and the clamping member 27 covers at least a part of the first region 222c. Therefore, the clamping member 27 can clamp the connecting portion 264 and restrict the connecting portion 264. When the connecting portion 264 moves, due to the presence of the clamping member 27, the operating stroke of the connecting portion 264 meets the design requirements and is less likely to be damaged by fatigue. Further, the restricting portion 264b is designed to facilitate the accurate positioning of the clamping member 27 and the flexible circuit board 26 during assembly on the production line. Thereby, the assembly yield is ensured. In another embodiment, it is not necessary to use a design in which the connecting portion 264 is clamped by the clamping member 27.

[0220] Above, the structures and assembly of the second shaft 223, the flexible circuit board 26, the shaft sleeve 222, and the clamping member 27 have been described. Below, the overall assembly structure of the rotating shaft assembly 22 and the assembly relationship among the flexible circuit board 26, the second shaft 223, and the first shaft 221 will be described.

[0221] FIG. 67 shows a cross-sectional view of an assembled structure including a rotating shaft assembly 22, a flexible circuit board 26, and a clamp member 27. For the sake of clearly showing the flexible circuit board 26, a cross-sectional view of the flexible circuit board 26 is not shown. As described above, as shown in FIG. 67, the assembly relationship of the first shaft 221, the driven member 229, the elastic member 228, the bump alignment member 227, and the shaft sleeve 222, and the assembly relationship including the second shaft 223, the flexible circuit board 26, the clamp member 27, and the shaft sleeve 222 have been described. This will not be repeated here. As described above, the end of the first portion 223a of the second shaft 223 is not covered by the winding portion of the flexible circuit board 26. This makes it easier to insert the end 221d of the first shaft 221 into the groove 223e of the first portion 2223a of the second shaft 223. In order to avoid interference between the end 221d and the winding portion, a predetermined gap may exist between the end 221d and the winding portion in the axial direction of the first shaft 221.

[0222] Furthermore, as shown in FIGS. 44, 38, and 40, one shaft contact member 224 is fixed to the mounting groove 222g of the shaft sleeve 222, which is close to the second portion 221b of the first shaft 221, and the shaft contact member 224 contacts the second portion 221b. Similarly, another shaft contact member 224 may be fixed to the groove of the shaft sleeve 222, which is close to the second portion 223b of the second shaft 223, and the shaft contact member 224 contacts the second portion 223b (due to the perspective relationship, the groove of the shaft sleeve 222, which is close to the second portion 223b, and the shaft contact member 224 in the groove are not shown). In this embodiment, the shaft contact member 224 may be a conductor, for example, a metal spring.

[0223] The assembled structures of the rotating shaft assembly 22, the flexible circuit board 26, the first portion 21, and the second portion 23 of the host 2 will be described one by one below.

[0224] As shown in FIG. 68, both the third portion 221c of the first shaft 221 and the third portion 223c of the second shaft 223 can be fixed to the inner support platform 232g of the third host housing 232. The shaft sleeve 222 may be located in the rotary shaft mounting space 232f of the third host housing 232, and the shaft sleeve 222 is rotatable within the rotary shaft mounting space 232f. The second outer surface 222f of the shaft sleeve 222 may face the outside of the circumferential side wall 232a of the third host housing 232. The electrical connection end 261 of the flexible circuit board 26 may be located inside the circumferential side wall 232a.

[0225] As shown in FIGS. 67 and 68, the electrical connection end 263 of the flexible circuit board 26 is located inside the circumferential side wall 232a and can be fixed to the inner support platform 232g. For example, the electrical connection end 263 may have an adhesive, and the electrical connection end 263 may be adhered to the inner support platform 232g. Referring to FIGS. 67, 24, and 68, the protective layer 265 of the flexible circuit board 26 may be located inside the circumferential side wall 232a and is located between the circumferential side wall 232a and the laminated portion of the flexible circuit board 26, and the flexible circuit board 26 can be prevented from being damaged by the friction generated due to the laminated portion directly contacting the circumferential side wall 232a.

[0226] As shown in FIG. 69, the second bracket 231a of the second host housing 231 and the third host housing 232 can be assembled and fixed, and the second host housing 231 can be located inside the circumferential side wall 232a. As seen from FIG. 69, the openings of the third accommodation groove 231f and the fourth accommodation groove 231g of the second bracket 231a face upward. The second bracket 231a covers both the third portion 221c of the first shaft 221 and the third portion 223c of the second shaft 223. The through hole 231b and the shaft sleeve 222 of the second bracket 231a may be located at two opposite ends of the circumferential side wall 232a having the same diameter, respectively. Referring to FIGS. 69 and 68, the through hole 231b may communicate with the second opening 232c of the third host housing 232.

[0227] Referring to FIGS. 70 and 69, the first host housing 213 may cover the second host housing 231 and the third host housing 232. As seen from FIG. 70, the openings of the first accommodation groove 213y and the second accommodation groove 213x of the first bracket 213b of the first host housing 213 may face downward. In this embodiment, the opening of the first accommodation groove 213y may face the opening of the third accommodation groove 231f, and the opening of the first accommodation groove 213y may be aligned with the opening of the third accommodation groove 231f. The opening of the second accommodation groove 213x may face the opening of the fourth accommodation groove 231g, and the opening of the second accommodation groove 213x may be aligned with the opening of the fourth accommodation groove 231g.

[0228] Referring to FIGS. 70 and 69, the first frame body 213a within the first host housing 213 can be fixedly connected to the side of the shaft sleeve 222 that has the first outer surface 222a, and the first frame body 213a may cover a part of the first outer surface 222a and a part of the clamp member 27. Other parts of the first outer surface 222a and other parts of the clamp member 27 may be exposed from the through hole 213z of the first frame body 213a. The electrical connection end 261 and the connection part 264 of the flexible circuit board 26 may pass through the through hole 213z of the first frame body 213a. The electrical connection end 261 can be connected to the circuit board of the first host circuit board assembly 212, whereby the flexible circuit board 26 is electrically connected to the first host circuit board assembly 212. The grounding part 264a of the connection part 264 may pass through the through hole 213z and is connected to the first frame body 213a using a conductor. The conductor may be, for example, a conductive foam or a conductive adhesive. Thereby, the flexible circuit board 26 can be grounded to avoid interference with the antenna radiation performance of host 2 (further described below). The limiting part 264b of the connection part 264 is located within the through hole 213z.

[0229] As shown in FIGS. 71 and 69, the through hole 213z of the first frame body 213a may be filled with a sealing material (shown by hatching). The sealing material fills the through hole 213z and may cover the surface of the first outer surface 222a and the clamp member 27. The sealing material surrounds the connection part 264 of the flexible circuit board 26. The sealing material may be, for example, a sealant. The sealing material has a sealing effect and can prevent moisture from entering through the through hole 213z of the first frame body 213a into the electrical connection end 261 and the first host circuit board assembly 212. Moisture may enter from the outside, and external moisture may enter the through hole through the assembly gap between the shaft sleeve 222 and the circumferential side wall 232a. Moisture may also enter from the inside of host 2, and the moisture inside host 2 may enter the through hole through the assembly gap between the shaft sleeve 222 and the second bracket 231a.

[0230] In another embodiment, only a part of the area of the clamp member 27 may be exposed from the through hole 213z of the first frame body 213a, and the structural design may be adjusted so that the first outer surface 222a of the shaft sleeve 222 is completely covered by the first frame body 213a (for example, the position and / or size of the through hole of the first frame body 213a can be adjusted). Therefore, the sealing material in the through hole 213z only covers the surface of the clamp member 27. Alternatively, in another embodiment, based on actual requirements, the first frame body 213a may not be provided with the through hole 213z and may be sealed without filling the sealing material.

[0231] As shown in FIG. 72, the display 211 is attached to the first host housing 213. Referring to FIGS. 72, 70, and 6, the display 211 may cover the first bracket 213b of the first host housing 213, the first host circuit board assembly 212, the electrical connection end 261 and the connection portion 264 of the flexible circuit board 26, and a part of the first frame body 213a of the first host housing 213. The periphery of the first frame body 213a may surround the periphery of the display 211. FIG. 72 shows the closed state of the host 2. The second outer surface 222f of the shaft sleeve 222 can be seen as the outer surface of the host 2.

[0232] In summary, in the host 2, the shaft sleeve 222 of the rotary shaft assembly 22 is fixedly connected to the first portion 21, and the first shaft 221 and the second shaft 223 of the rotary shaft assembly 22 are fixedly connected to the second portion 23. The first portion 21 is rotatable around the first shaft 221 and the second shaft 223 together with the shaft sleeve 222.

[0233] Hereinafter, the mechanism operations generated inside the host 2 during the opening and closing of the host 2 will be described.

[0234] FIG. 73 is a schematic side view of the host 2 in a closed state, and FIG. 74 is a schematic top view of the rotary shaft assembly 22 of the host 2 in FIG. 73. In FIGS. 73 and 74, in order to show the internal state of the rotary shaft assembly 22, the shaft sleeve 222 is cut open and shown. It should be noted that the cross-section of the shaft sleeve 222 in FIG. 73 and the cross-section of the shaft sleeve 222 in FIG. 74 are orthogonal to each other. FIG. 75 is a partially enlarged view of the position B in FIG. 74.

[0235] As described above, when the host 2 is in the closed state, the latch portion 213d of the first portion 21 forms a buckle connection with the buckle 251e of the open button 25, whereby the first portion 21 is locked by the second portion 23.

[0236] As shown in FIGS. 73 and 75, when the host 2 is in the closed state, one end of the elastic member 228 is pressed against the driven member 229, whereby the driven member 229 remains in contact with the second portion 221b. The upper part of the first inclined surface 229a of the driven member 229 (that is, the end of the first inclined surface 229a that is far from the flat surface 229b) may contact the upper part of the inclined surface 221k of the second portion 221b of the first shaft 221 (that is, the end of the inclined surface 221k that is close to the flat surface 229b), and there is a gap between the flat surface 229b of the driven member 229 and the flat surface 221m of the second portion 221b. Due to the force of the inclined surface 221k on the first inclined surface 229a, the driven member 229 may be caused to rotate in a direction to open when the first portion 21 of the host 2 rotates relative to the second portion 23.

[0237] As shown in FIG. 75, due to the matching between the driven member 229 and the shaft sleeve 222, when the driven member 229 attempts to rotate clockwise, the shaft sleeve 222 also attempts to rotate in the opening direction. Since the shaft sleeve 222 is fixedly connected to the first portion 21, the first portion 21 also has a tendency to rotate in the opening direction. However, since the first portion 21 is locked by the second portion 23, in reality, the first portion 21 cannot rotate in the opening direction.

[0238] As shown in FIG. 75, since the other end of the elastic member 228 abuts against the bump alignment member 227, the bump alignment member 227 abuts against the spacer plate 222n.

[0239] FIG. 76 is a schematic diagram showing the cross-sectional structure taken along line A-A of FIG. 75. FIG. 76 includes the bump alignment member 227 and the spacer plate 222n, and shows the cross-sectional matching structure obtained when the host 2 is in the closed state. The bumps 227a of the bump alignment member 227 are shown by dotted lines. As shown in FIG. 76, the bumps 227a are located within the shoots 222q of the spacer plate 222n, and the bumps 227a are spaced apart from the alignment grooves 222p.

[0240] When the user presses the cap 251 of the open button 25, the buckle 251e of the open button 25 no longer forms a buckle connection with the latch portion 213d of the first portion 21, and the first portion 21 is no longer locked by the second portion 22. The first rotational stroke section of the first portion 21 starts from this point.

[0241] As shown in FIG. 77 (in FIG. 77, the shaft sleeve 222 is not shown to clarify the compatibility between the driven member 229 and the second portion 221b. The same applies hereinafter), the driven member 229 performs a composite motion due to the articulation of the elastic member 228 and the inclined surface 221k. The driven member 229 rotates in the open direction and moves toward the second portion 221b until the base of the first inclined surface 229a (i.e., one end of the first inclined surface 229a that connects to the plane 229b) abuts against the top of the inclined surface 221k, and the plane 229b is in contact with the plane 221m (the influence of inertia on the position of the driven member 229 can be ignored in terms of structural design). Referring to FIG. 73, when the driven member 229 moves, the shaft sleeve 222 and the first portion 21 also rotate in the open direction around the second portion 221b.

[0242] As shown in FIGS. 73 and 2, when the rotation of the driven member 229, the shaft sleeve 222, and the first portion 21 stops, the first portion 21 completes the first rotation stroke section, and the first portion 21 opens by an angle a with respect to the second portion 23. The angle a may be, for example, about 15°. In the first rotation stroke section, since the first portion 21 is rotationally driven by the shaft sleeve 222, it can be easily understood that the first portion 21 rotates automatically without the user applying an external force.

[0243] Referring to FIGS. 76 and 78, in the first rotation stroke section, since the shaft sleeve 222 rotates with respect to the bump alignment member 227, the bump 227a of the bump alignment member 227 slides within the chute 222q and gradually approaches the alignment groove 222p. When the first rotation stroke section ends, each bump 227a may just reach the junction between the chute 222q and the alignment groove 222p (as shown in FIG. 78). In the first rotation stroke section, the bump 227a always slides smoothly within the chute 222q. In this case, between the bump alignment member 227 and the shaft sleeve 222, there is no displacement (i.e., play) in the rotational shaft direction of the shaft sleeve 222, and the bump alignment member 227 does not collide with the shaft sleeve 222. Therefore, when the user touches the first portion 21, the user cannot experience tactile feedback.

[0244] Alternatively, in another embodiment, when the first rotation stroke section ends, the bump 227a may enter the alignment groove 222p. When the bump 227a enters from the chute 222q into the first alignment groove 222p, a displacement in the rotational shaft direction of the shaft sleeve 222 occurs between the bump alignment member 227 and the shaft sleeve 222, and the bump alignment member 227 may collide with the shaft. Therefore, when the user touches the first portion 21, the user can experience tactile feedback.

[0245] As shown in FIG. 77, when the first part 21 opens by an angle a with respect to the second part 23, the plane 229b contacts the plane 221m, and the resultant force applied to the driven member in the axial direction of the main part 221g by the elastic member 228 and the first shaft 221 is zero. Therefore, the driven member 229 cannot be rotated only by the elastic member 228 and the first shaft 221. In other words, the first part 21 cannot automatically continue to rotate. At this time, the user can rotate the first part 21 in the opening direction. The first part 21 can rotate the shaft sleeve 222 in the opening direction, and the shaft sleeve 222 can rotate the driven member 229 in the opening direction. When the driven member 229 rotates, since the plane 229b is in sliding contact with the plane 221m, it is easily understood that the driven member 229 only rotates and does not move in the axial direction of the main part 221g.

[0246] As shown in FIG. 79, when one end of the plane 229b, which is far from the first inclined surface 229a, contacts the top of the inclined surface 221k (or the top of the second inclined surface 229c contacts the top of the inclined surface 221k), the first part 21 can complete the second rotation stroke section. As shown in FIG. 3, when the second stroke section is completed, the first part 21 opens by an angle b with respect to the second part 23. The angle b may be, for example, about 75°. As described above, in the second stroke section, the user needs to manually rotate the first part 21.

[0247] Referring to FIGS. 78 and 80, in the second rotation stroke section, the bumps 227a sequentially enter the respective alignment grooves 222p. The bump 227a can slide out of one alignment groove 222p and enter the chute 222q by the end of the second rotation stroke section. In the second rotation stroke section, when the bump 227a enters and exits the alignment groove 222p, a displacement in the rotational shaft direction of the shaft sleeve 222 occurs between the bump alignment member 227 and the shaft sleeve 222, and the bump alignment member 227 collides with the shaft sleeve 222. Therefore, the user can experience tactile feedback.

[0248] As shown in FIG. 3, when the first part 21 opens by an angle b with respect to the second part 23, the first part 21 can start to enter the third stroke section. The rotation characteristics of the first part 21 in the third stroke section are the same as those of the first part 21 in the first stroke section, and the first part 21 also rotates automatically in the third stroke section. Details will be described below.

[0249] As shown in FIGS. 79 and 81, when the third stroke section starts, the upper end of the second inclined surface 229c is in contact with the upper end of the inclined surface 221k. The driven member 229 performs a composite motion due to the articulation of the elastic member 228 and the inclined surface 221k. The driven member 229 rotates in the opening direction and moves toward the second part 221b until the root of the second inclined surface 229c (i.e., one end of the second inclined surface 229c on the side far from the plane 229b) contacts the top of the inclined surface of the inclined surface 221k. When the driven member 229 moves, the shaft sleeve 222 and the first part 21 also rotate in the opening direction around the second part 221b.

[0250] As shown in FIGS. 83 and 84, the limiting protrusion 222r of the shaft sleeve 222 enters the limiting groove 232h of the third host housing 232, and the limiting protrusion 222r abuts against the inner wall of the limiting groove 232h. In this case, since the shaft sleeve 222 cannot continue to rotate in the opening direction, the rotation of the first part 21 also stops.

[0251] When the rotation of the driven member 229, the shaft sleeve 222, and the first part 21 stops, the first part 21 completes the third rotational stroke section. As shown in FIG. 5, the first part 21 opens by an angle c with respect to the second part 23. The angle c may be, for example, about 90°. In the third stroke section, since the first part 21 is rotationally driven by the shaft sleeve 222, it is easily understood that the first part 21 rotates automatically without the user applying an external force.

[0252] In this embodiment, due to the fit between the limiting groove 232h and the limiting protrusion 222r, the third host housing 232 can limit the movement of the first portion 21. The third host housing 232 has a large size (compared with the rotating shaft assembly 22) and has good structural strength. Therefore, the assembly reliability of the limiting groove 232h and the limiting protrusion 222r is high, which helps to ensure the fitting reliability of the host 2. In another embodiment, based on actual requirements, when the third stroke section ends, the rotation of the first portion 21 can be stopped due to the fit between the two-stage ladder of the driven member and the two-stage ladder of the first shaft 221. There is no need to design the limiting protrusion 222r on the shaft sleeve, nor is it necessary to provide the limiting groove 232h in the third host housing 232.

[0253] Referring to FIGS. 80 and 82, in the third rotational stroke section, the bump 227a slides smoothly within the chute 222q. In this case, there is no displacement of the shaft sleeve 222 in the rotational shaft direction between the bump alignment member 227 and the shaft sleeve 222, and the bump alignment member 227 does not collide with the shaft sleeve 222. Therefore, when the user touches the first portion 21, the user cannot experience tactile feedback.

[0254] Referring to FIGS. 73, 67, and 62, during the opening process of the first portion 21, the electrical connection end 261 of the flexible circuit board 26 rotates together with the first portion 21, the wound portion of the flexible circuit board 26 can be gradually relaxed, and the diameter of the wound portion can gradually increase.

[0255] From the above description of the process of opening the host 2, it can be easily understood that the entire process of closing the opened first part 21 requires manually rotating the first part 21 in the direction opposite to the opening direction until the first part 21 is locked by the open button. In the stroke where the opening angle of the first part 21 decreases from angle b to angle a, since the bump 227a slides into and out of the alignment groove 222p sequentially, the bump alignment member 227 collides with the shaft sleeve 222, and thus there is tactile feedback. In another stroke, since the bump 227a slides smoothly within the chute 222q, the bump alignment member 227 does not collide with the shaft sleeve 222, and thus there is no tactile feedback. Also, during the closing process of the first part 21, the electrical connection end 261 of the flexible circuit board 26 rotates with the first part 21, and the winding portion of the flexible circuit board 26 can be gradually tightened, and the diameter of the winding portion can gradually decrease.

[0256] As can be easily understood from the above description, a cam mechanism is constructed using the assembled structure including the first shaft 221, the driven member 229, the elastic member 228, and the shaft sleeve 222 within the rotary shaft assembly 22 to realize the opening and closing of the host 2. The second shaft 223 of the rotary shaft assembly 22 is used to attach and wrap the flexible circuit board 26. In this embodiment, since the first shaft 221 and the second shaft 223 are designed separately, the flexible circuit board 26 can be easily assembled to the second shaft 223 and the shaft sleeve 222.

[0257] Due to manufacturing errors, the first shaft 221 and the second shaft 223 may not be concentric after assembly (the axes of the first shaft 221 and the second shaft 223 do not coincide). If left like this, stress may occur when the rotary shaft assembly 22 performs mechanical operations, reducing the reliability of the rotary shaft assembly 22 and causing the generation of abnormal noises. In this embodiment, the end portion 221d of the first shaft 221 fits into the groove 223e of the second shaft 223, so that assembly tolerances can be absorbed and the stress caused by eccentricity can be reduced or avoided.

[0258] Unlike this embodiment, in another embodiment, the first shaft and the second shaft do not have to be connected, and a groove for accommodating the end of the first shaft does not have to be provided at the end of the second shaft. Alternatively, in another embodiment, instead of winding the flexible circuit board around the shaft, a single integrated shaft may be used in place of the first shaft 221 and the second shaft 223. In this case, the limiting member 226 may not be provided.

[0259] From the above description, it is easily understood that an assembly structure including the elastic member 228, the bump alignment member 227, and the shaft sleeve 222 is used within the rotating shaft assembly 22 to realize the tactile feedback when the host 2 is opened and closed. In another embodiment, the tactile feedback design may be canceled. Specifically, the bump alignment member 227, the chute 222q and the alignment groove 222p of the spacer plate 222n of the shaft sleeve 222 do not have to be provided. In this case, the elastic member may directly abut against the spacer plate 222n.

[0260] In this embodiment, when the shaft sleeve 222 rotates, the shaft contact member 224 attached to the shaft sleeve 222 also rotates together with the shaft sleeve 222. Further, the shaft contact member 224 maintains a state of being in contact with the first shaft 221 and the second shaft. That is, the shaft contact member 224 is in sliding contact with the first shaft 221 and the second shaft 223.

[0261] Two power supply paths of the antenna system of the host 2

[0262] In this embodiment, both the first frame body 213a of the host 2 and the third host housing 232 can be used as the antenna of the antenna system of the host 2. Hereinafter, two power supply paths of the antenna system of the host 2 will be described.

[0263] As shown in FIG. 70, since the first frame body 213a can contact the power supply spring 212f of the first host circuit board assembly 212, a radio frequency signal can be supplied to the first frame body 213a using the power supply spring 212f. Further, since the first frame body 213a can contact the ground springs 212b, 212c, 212d, and 212e of the first host circuit board assembly 212, the first frame body 213a can be grounded. Therefore, the first frame body 213a can function as an antenna.

[0264] As described above, the first frame body 213a is connected to the shaft sleeve 222, the shaft contact member 224 of the shaft sleeve 222 contacts both the first shaft 221 and the second shaft 223, and both the first shaft 221 and the second shaft 223 are connected to the third host housing 232. Therefore, the radio frequency signal can be transmitted from the first frame body 213a to the third host housing 232 via the shaft sleeve 222, the shaft contact member 224, the first shaft 221, and the second shaft 223. Therefore, the third host housing 232 can also function as an antenna.

[0265] It can be understood that the first host circuit board assembly 212 is connected to the first frame body 213a and the third host housing 232 via a physical mechanical structure, forming the first power supply path of the antenna system.

[0266] When the host 2 is in the closed state, there is a slight gap in the axial direction of the first frame body 213a (i.e., the thickness direction of the host 2) between the first frame body 213a and the third host housing 232. The gap is, for example, 0.1 mm. Due to the existence of this gap, the first frame body 213a can supply power to the third host housing 232 through coupling, so the third host housing 232 can function as an antenna.

[0267] The first host circuit board assembly 212 is connected to the first frame body 213a through a physical mechanical structure, and then electrically coupled to the third host housing 232, and it can be understood that a second power supply path of the antenna system is formed.

[0268] When the host 2 is in the closed state, the third host housing 232 in the second power supply path has high radiation. In this case, the host 2 ensures the antenna performance together with the first frame body 213a and the third host housing 232. When the host 2 is in the open state, the third host housing 232 in the second power supply path has low radiation. In this case, the antenna performance is mainly ensured by the radiation of the first frame body 213a. However, compared with the case where the host 2 is in the closed state, when the host 2 is in the open state, the radiation direction of the antenna system changes, which can meet the communication requirements of the host 2 in the open state. Therefore, in this embodiment, the two power supply paths of the antenna system are designed to be able to meet the different communication requirements of the host 2 in the open state and the closed state, and ensure the antenna performance of the host 2 in different states.

[0269] In another embodiment, it is easily understood that the second supply path may not exist. In other words, the first frame body 213a does not supply power to the third host housing 232 through coupling.

[0270] In this embodiment, the flexible circuit board 26 may cause interference to the radiation performance of the first frame body 213a and the third host housing 232. In particular, the longer the length of the flexible circuit board 26, the greater the interference. As described above, the grounding portion 264a of the flexible circuit board 26 can be connected to the first frame body 213a using a conductor. In this way, the flexible circuit board 26 can be grounded to avoid interference with the antenna radiation performance of the host 2 of the flexible circuit board 26. In another embodiment, the aforementioned grounding design may not be performed on the flexible circuit board 26 based on product requirements.

[0271] Earphone 3

[0272] In this embodiment, the structures of the first earphone 31 and the second earphone 32 may completely coincide. Hereinafter, an example of the first earphone 31 will be used for explanation.

[0273] As shown in FIGS. 85 and 86, the first earphone 31 may include an earplug 311, an earplug support assembly 316, a first electrode 312, a front earphone housing assembly 313, a second electrode 314, a rear earphone housing assembly 315, and an electronic assembly 317. Both the earplug support assembly 316 and the first electrode 312 may be attached to one end of the front earphone housing assembly 313, and both the second electrode 314 and the rear earphone housing assembly 315 may be attached to the other end of the front earphone housing assembly 313. The earplug 311 and the earplug support assembly 316 are located at the same end of the front earphone housing assembly 313, and the earplug 311 is attached to one end of the earplug support assembly 316 on the side far from the front earphone housing assembly 313. The electronic assembly 317 may be attached to the space surrounded by the earplug support assembly 316, the first electrode 312, the front earphone housing assembly 313, the second electrode 314, and the rear earphone housing assembly 315.

[0274] Hereinafter, the structures and assemblies of the earplug 311, the earplug support assembly 316, the first electrode 312, the front earphone housing assembly 313, the second electrode 314, and the rear earphone housing assembly 315 in the first earphone will be described, and then, the structures and assemblies of the electronic assembly 317 will be described.

[0275] As shown in FIG. 85, in this embodiment, the first electrode 312, the earphone front housing assembly 313, the second electrode 314, and the earphone rear housing assembly 315 form a substantially octahedron, and the outer peripheral surface of the octahedron may include flat surfaces and curved surfaces. The flat surfaces and the curved surfaces are alternately arranged so as to be connected to form a circle (in other words, each flat surface is connected between two curved surfaces, and each curved surface is connected between two flat surfaces). The octahedral appearance of the first earphone 31 has a centrosymmetric shape. In another embodiment, the first earphone may have another centrosymmetric external shape. For example, the first earphone is substantially cylindrical or tetrahedral.

[0276] In this embodiment, the radial size of the first earphone 31 may be larger than the groove depth of the first receiving groove 213y. For example, the radial size of the first earphone 31 may be twice or more the groove depth of the first receiving groove 213y. The radial size may be the distance between two flat surfaces on the first earphone 31 that face each other.

[0277] Earphone front housing assembly 313

[0278] As shown in FIGS. 87, 88, and 89, the earphone front housing assembly 313 may include an earphone front housing 313z, a noise reduction microphone mesh 313j, and an earphone magnet 313g.

[0279] As shown in FIGS. 87 and 88, the front earphone housing 313z may have a hollow cylindrical structure with both ends open. The front earphone housing 313z may include a first portion 313a, a second portion 313b, and a third portion 313c that are sequentially connected. The perimeter of the first portion 313a may be shorter than the perimeter of the second portion 313b, and the perimeter of the second portion 313b may be shorter than the perimeter of the third portion 313c. The perimeter is the dimension in the center line direction of the cylindrical structure surrounding the front earphone housing 313z. The third portion 313c has a substantially octahedral cylindrical structure, and the wall of the third portion 313c may include flat portions and arc portions. The flat portions and the arc portions are alternately arranged so as to be connected to form a circle (in other words, each flat portion is connected between two arc portions, and each arc portion is connected between two flat portions).

[0280] As shown in FIGS. 87 and 90, an end portion of the first portion 313a that is far from the second portion 313b forms a mounting groove 313f, and the mounting groove 313f may surround a circle. A sound pickup channel 313e may be further provided in the wall of the front earphone housing 313z, and the sound pickup channel 313e may extend along a substantially straight line. One end of the sound pickup channel 313e penetrates the bottom surface of the mounting slot 313f, and the other end of the sound pickup channel 313e communicates with the internal cavity of the front earphone housing 313z. A through hole 313d may be provided in the second portion 313b, and the through hole 313d communicates with the internal cavity of the front earphone housing 313z.

[0281] Noise reduction microphone mesh 313j

[0282] The noise reduction microphone mesh 313j may have a substantially sheet shape and may include several material layers such as an acoustic mesh and an adhesive layer. As shown in FIGS. 89 and 90, the noise reduction microphone mesh 313j can be fixed to the front earphone housing 313z, and by sealing an end portion of the sound pickup channel 313e that is far from the mounting groove 313f, the sound in the sound pickup channel 313e can pass through the noise reduction microphone mesh 313j.

[0283] Earphone magnet 313g

[0284] As shown in FIG. 89, the earphone magnet 313g in this embodiment may be a single magnet. The earphone magnet 313g may have a single magnetic field direction. Alternatively, the earphone magnet 313g may have at least two magnetic field directions, and the earphone magnet 313g may form a Halbach array (which can be adjusted by magnetizing different regions of a physical single magnet in different directions). For example, the earphone magnet 313g is a Halbach array having two different magnetic field directions.

[0285] In another embodiment, the earphone magnet may be formed by joining at least two single magnets. The earphone magnet may have at least two magnetic field directions, and the earphone magnet forms a Halbach array.

[0286] As shown in FIG. 89, the earphone magnet 313g of this embodiment may have a substantially curved plate-like structure, and the curved plate-like structure may be bent in a direction around the center line of the first earphone 31. The earphone magnet 313g may be adapted to the shape of the inner wall of the third portion 313c of the earphone front housing 313z. The earphone magnet 313g is fixed to the inner wall of the third portion 313c of the earphone front housing 313z, and may be fixed, for example, to the inner wall of the arc portion of the third portion 313c.

[0287] As shown in FIG. 89, in this embodiment, four earphone magnets 313g may be present, and the four earphone magnets 313g can be evenly distributed at equal intervals on the inner wall of the third portion 313c, and one earphone magnet 313g is provided on the inner wall of each arc portion of the third portion 313c. The specifications of the four earphone magnets 313g may be the same, and the directions of the magnetic fields of the four earphone magnets 313g may be the same.

[0288] In another embodiment, the number of earphone magnets can be designed based on product requirements. For example, there may be only one earphone magnet, the earphone magnet may surround a closed ring structure, and the earphone magnet may be adapted to the shape of the inner wall of the third part 313c. The earphone magnets may form a Halbach array, and the four regions with a one-to-one correspondence between the earphone magnets and the four arc portions of the third part 313c may have different magnetic field directions.

[0289] Alternatively, for example, there may be three earphone magnets, each earphone magnet may have a curved structure surrounding the center line of the first earphone, and the three earphone magnets may be distributed at intervals on the inner wall of the third part of the earphone front housing. The three earphone magnets may be evenly distributed at equal intervals or unevenly distributed at unequal intervals. In this design, the third part of the earphone front housing may be a substantially octahedral cylindrical structure or a cylindrical structure.

[0290] Assembly jig 100 and assembly technology of earphone magnet 313g

[0291] In this embodiment, in order to ensure the accurate attachment of the magnet, an assembly jig can be used to assist in the attachment of the earphone magnet 313g. Based on the assembly requirements of the product, the earphone magnet 313g and the earphone front housing 313z can be directly assembled, and the assembly jig can be customized accordingly. Alternatively, as shown in FIG. 91, the earplug support assembly 316, the first electrode 312, etc. can be first attached to the earphone front housing 313z to form an intermediate assembly 200, and then the earphone magnet 313g can be attached to the earphone front housing 313z of the intermediate assembly 200. The assembly jig can be customized accordingly. Hereinafter, the latter assembly method will be used as an example for explanation.

[0292] As shown in FIGS. 91 and 92, this embodiment provides an assembly jig 100 for assembling an intermediate assembly 200. The intermediate assembly 200 may include a pre-assembled earplug support assembly 316, a first electrode 312, and an earphone front housing 313z (the assembly structure including the earplug support assembly 316, the first electrode 312, and the earphone front housing 313z will be described in detail below). In order to facilitate the removal, placement, and positioning of the intermediate assembly 200, a clamp 300 can be sleeved around the earphone front housing 313z of the intermediate assembly 200. The clamp 300 may be in the shape of a collar, and the clamp 300 wraps around and clamps the earphone front housing 313z. The clamp 300 can also be used in another assembly process of the first earphone 31.

[0293] As shown in FIG. 92, the assembly jig 100 of this embodiment may include a base 120, a jig magnet 130, and an upper cover 110.

[0294] As shown in FIGS. 93 and 94, the base 120 includes a bottom plate 121 and a base magnet 122 fixed to the bottom plate 121. The bottom plate 121 may be provided with upper cover positioning holes 121a. For example, there are two upper cover positioning holes 121a, and the two upper cover positioning holes 121 are located at both ends of the bottom plate 121 respectively. Also, a work positioning groove 121c, a jig magnet mounting groove 121b, and a clamp accommodation groove 121e may be provided in the area of the bottom plate 121 (for example, the right end area as seen from FIG. 93).

[0295] As shown in FIG. 93, the inner surface of the bottom of the work positioning groove 121c may have the same shape as the outer surface of the first electrode 312. A through hole 121d may be provided in the bottom wall of the work positioning groove 121c, and the through hole 121d is used to allow the earphone front housing 313z and the earplug support assembly 316 to pass through.

[0296] As shown in FIG. 93, the jig magnet mounting groove 121b may be located outside the workpiece positioning groove 121c and may be connected to the workpiece positioning groove 121c. The jig magnet mounting groove 121b may be considered to penetrate the side wall of the workpiece positioning groove 121c. The number of jig magnet mounting grooves 121b may be the same as the number of jig magnets 130. For example, there are four jig magnet mounting grooves 121b. The four jig magnet mounting grooves 121b may be distributed at equal intervals around the workpiece positioning groove 121c.

[0297] Referring to FIGS. 92 and 94, one jig magnet 130 may be attached to each jig magnet mounting groove 121b. One jig magnet 130 may include only a single magnet or may be formed by connecting at least two single magnets.

[0298] As shown in FIG. 93, the clamp accommodation groove 121e may be located around the workpiece positioning groove 121c and may communicate with the workpiece positioning groove 121c. The clamp accommodation groove 121e may be positioned between two jig magnet mounting grooves 121b.

[0299] As shown in FIG. 93, the same workpiece positioning groove 121c, the same through hole 121d, the same jig magnet mounting groove 121b, and the same clamp accommodation groove 121e may be provided in another region of the bottom plate 121 (for example, the left end region as viewed from FIG. 93). With this design, the assembly jig 100 can assemble two intermediate assemblies 200. The positioning grooves 121c, the through holes 121d, the jig magnet mounting grooves 121b, and the clamp accommodation grooves 121e in the two regions of the bottom plate 121 may be located between the two upper cover positioning holes 121a.

[0300] As shown in FIGS. 95 and 96, the upper cover 110 may include a cover plate 111, upper cover positioning posts 113, upper cover limiting posts 112, and upper cover magnets 114.

[0301] There may be two upper cover positioning posts 113, and the two upper cover positioning posts 113 are respectively located at both ends of the cover plate 111. A magnet arrangement through hole 111a may be provided in the region of the cover plate 111 (the right region as viewed from FIG. 95). The quantity of the magnet arrangement through holes 111a may match the quantity of the earphone magnets 313g. For example, there are also 4 magnet arrangement through holes 111a. The 4 magnet arrangement through holes 111a can generally form a 2×2 matrix.

[0302] The upper cover limiting post 112 is arranged on one side in the thickness direction of the cover plate 111, and the center of the upper cover limiting post 112 may be generally located between the 4 magnet arrangement through holes 111a. Also, in each of the magnet arrangement through holes 111a and the upper cover limiting post 112, a part of the projection of the upper cover limiting post 112 in the axial direction of the magnet arrangement through hole 111a is contained within the projection of the magnet arrangement through hole 111a in the axial direction of the magnet arrangement through hole 111a. In other words, as viewed from FIG. 95, a part of the upper cover limiting post 112 exists in each magnet arrangement through hole 111a, and this part can be called a limiting member. It is easily understood that the quantity of the members is the same as the quantity of the earphone magnets 313g. The upper cover limiting post 112 can be adapted to the shape of the internal cavity of the earphone front housing 313z.

[0303] The upper cover magnet 114 can be fixed to the cover plate 111. The upper cover magnet 114 and the upper cover limiting post 112 may be located on the same side of the cover plate 111.

[0304] As shown in FIGS. 95 and 96, the same magnet arrangement through holes 111a and the same upper cover limiting posts 112 may be designed for another region of the cover plate 111 (for example, the left region as viewed from FIG. 95). With this design, two intermediate assemblies can be assembled by the assembly jig 100. The magnet arrangement through holes 111a and the upper cover limiting posts 112 in the two regions of the cover plate 111 may be located between the two upper cover positioning posts 113.

[0305] Referring to FIGS. 97 to 101, an example of the process of fitting four earphone magnets 313g into the intermediate assembly 200 using the assembly jig 100 will be described below.

[0306] Referring to FIGS. 91 and 97, first, the clamp 300 and the intermediate assembly 200 are positioned on the base 120, whereby the annular portion of the clamp 300 is disposed in the workpiece positioning groove 121c, another portion of the clamp 300 is disposed in the clamp receiving groove 121e, the earplug support assembly 316 and the earphone front housing 313z enter the through hole 121d, and the first electrode 312 enters the workpiece positioning groove 121c, and the outer surface of the first electrode 312 conforms to the inner surface of the workpiece positioning groove 121c. In this case, each jig magnet 130 may correspond to the mounting position for mounting the earphone magnet 313g in the earphone front housing 313z.

[0307] Referring to FIGS. 98, 96, and 97, the upper cover 110 is attached to the base 120, whereby the cover plate 111 contacts the base 120, the upper cover positioning post 113 is inserted into the upper cover positioning hole 121a, and the upper cover magnet 114 is magnetically attached to the base magnet 122. Referring to FIGS. 96 and 91, in this case, the upper cover limiting post 112 of the upper cover 110 is inserted into the internal cavity of the earphone front housing 313z. Referring to FIGS. 99, 100, and 94, a part of the workpiece positioning groove 121c is present in each magnet arrangement through hole 111a. In other words, the protrusions in different regions of the axially workpiece positioning groove 121c of the magnet arrangement through hole 111a are respectively fitted into each magnet arrangement through hole 111a. As seen from FIGS. 99 and 100, a part of the earphone front housing 313z is present in each magnet arrangement through hole 111a of the upper cover 110. In other words, the protrusions in different regions of the axially earphone front housing 313z of the magnet arrangement through hole 111a are respectively fitted into each magnet arrangement through hole 111a.

[0308] Furthermore, as shown in FIG. 100, a gap B is formed between each limiting member of the upper cover limiting post 112 and the inner wall of the earphone front housing 313z (for simplicity, only one gap B is shown in the figure). Each gap B is used to accommodate one earphone magnet 313g. There is a jig magnet 130 near each gap B.

[0309] As shown in FIG. 101, the four earphone magnets 313g are respectively fitted into the four gaps B through the four magnet arrangement through holes 111a, so that one earphone magnet 313g is located in each gap B, and each earphone magnet 313g is positioned at the mounting position within the earphone front housing 313z. The jig magnet 130 near each gap B is magnetically attached to the earphone magnet 313g within the gap B, whereby the earphone magnet 313g can be maintained at the mounting position within the earphone front housing 313z. In this way, the positioning of the earphone magnet 313g can be completed.

[0310] Thereafter, the upper cover 110 can be removed to expose the intermediate assembly 200 and the earphone magnet 313g to be arranged therein. Next, the earphone magnet 313g may be fixed to the inner wall of the earphone front housing 313z using an appropriate technique. For example, the earphone magnet 313g may be adhered to the inner wall of the earphone front housing 313z using a dispensing technique. The adhesive used in the dispensing technique may be, for example, a quick-drying adhesive.

[0311] From the above description, it can be easily understood that the base 120 can properly position the intermediate assembly 200, and the matching structure including the upper cover 110 and the base 120 can accurately define the mounting space for the earphone magnet 313g. The earphone magnet 313g can be simply and reliably held at the mounting position within the earphone front case 313z using the jig magnet 130. Therefore, the assembly accuracy and reliability of the earphone magnet 313g can be greatly improved using the assembly jig 100. Also, the assembly technique is simple and the mass productivity is good.

[0312] The first electrode 312

[0313] As shown in FIG. 102, the first electrode 312 may include an electrode body 312a and a conductive portion 312b. The electrode body 312a may have a substantially ring structure surrounding the center line of the first earphone 31. The conductive portion 312b may be substantially cylindrical, and the conductive portion 312b may be disposed convexly on the inner surface of the electrode body 312a. The first electrode 312 may be made of a conductive material, for example, a metal material.

[0314] Referring to FIGS. 102 and 87, the first electrode 312 may be attached to the earphone front housing 313z. The electrode body 312a of the first electrode 312 conforms to the second portion 313b of the earphone front case 313z. The conductive portion 312b of the first electrode 312 may pass through the through hole 313d of the earphone front housing 313z and be electrically connected to a circuit board (described below) of the first earphone circuit board assembly located in the internal cavity of the earphone front housing 313z, whereby the first electrode 312 functions as a charging electrode. The detailed assembly structure will be described below.

[0315] The earplug support assembly 316

[0316] As shown in FIGS. 103, 104, and 105, the earplug support assembly 316 may include an earplug support 316b, a front ventilation acoustic mesh 316a, and a speaker mesh 316c.

[0317] As shown in FIGS. 103 to 105, the earplug support 316b may include a support 316u, a first skirt 316v, and a second skirt 316w. The support 316u may have a substantially hollow cylindrical structure with both ends open. Both the first skirt 316v and the second skirt 316w may be bosses convexly disposed on the outer peripheral surface of the support 316u, and both the first skirt 316v and the second skirt 316w may surround the support 316u. Both the first skirt 316v and the second skirt 316w may be located between both ends of the support 316u. The first skirt 316v is spaced apart from the second skirt 316w.

[0318] As shown in FIGS. 106 and 103, a notch may be provided at an end of the support 316u near the second skirt 316w to form a substantially C-shaped structure. The end of the support 316u may also have a front vent hole 316x that penetrates the wall of the support 316u. The opening of the front vent hole 316x on the outer peripheral surface of the support 316u may be located on the side of the second skirt edge 316w and facing the first skirt edge 316v, and the opening may be connected to the second skirt edge 316w.

[0319] As shown in FIG. 105, a mounting groove 316t may be formed at one end of the support 316u near the first skirt 316v. A through hole is provided in the bottom wall of the mounting groove 316t, and this through hole communicates with the internal cavity of the support 316u.

[0320] In this embodiment, the entire earplug support 316b or a part of the earplug support 316b may be made of a conductive material. The conductive material is, for example, metal. Since the earplug support 316b can accommodate a speaker (described below) in the electronic assembly 317, the earplug support 316b may be called a voice-emitting mouth.

[0321] The front ventilation acoustic mesh 316a may be substantially sheet-shaped and may include several material layers such as an acoustic mesh and an adhesive layer. A bent front ventilation acoustic mesh 316a is shown in the figure. As shown in FIG. 105, the front ventilation acoustic mesh 316a may include a fixed region 316z and a blocking region 316y. The fixed region 316z may be ring-shaped. The blocking region 316y may be strip-shaped, and the blocking region 316y may be connected inside the fixed region 316z. The blocking region 316y can allow the passage of air and sound waves.

[0322] As shown in FIGS. 105, 104, and 106, the front ventilation acoustic mesh 316a can be attached to the earplug support 316b. The fixed region 316z may be attached on the side of the second skirt 316w and far from the first skirt 316v. For example, the adhesive layer of the fixed region 316z may be adhered to the side surface of the second skirt 316w. The blocking region 316y may be bent inside the internal cavity of the support 316u and attached to the inner wall of the support 316u. For example, the adhesive layer of the blocking region 316y may be adhered to the inner wall of the support 316u. Further, the blocking region 316y can block the front ventilation hole 316x.

[0323] Referring to FIGS. 103, 104, and 87, the earplug support 316b may be attached to the mounting slot 313f of the earphone front housing 313z. For example, the earplug support 316b may be adhered to the bottom surface of the mounting slot 313f via an adhesive layer in the fixed region 316z. The detailed assembly structure will be described below.

[0324] Speaker mesh 316c

[0325] As shown in FIG. 105, the speaker mesh 316c may be substantially sheet-shaped and may include several material layers such as an acoustic mesh, an adhesive layer, and a PET sheet. A plurality of sound outlets may be provided in the speaker mesh 316c.

[0326] As shown in FIG. 105, the speaker mesh 316c may be attached to the attachment groove 316t of the support 316u. The sound (the sound from the speaker, which will be described below) in the internal cavity of the support 316u enters the human ear through the speaker mesh 316c.

[0327] Based on the product requirements, in another embodiment, the earplug support may have yet another suitable structure and is not limited to the foregoing description. The front vent hole may be provided not in the earplug support but in the earphone front housing 313z. For example, the front vent hole is provided in the first portion 313a of the earphone front housing 313z and communicates with the sound collection channel 313e. The opening of the front vent hole may be small (for example, less than 0.22 mm). In this case, the front vent acoustic mesh 316a may be omitted.

[0328] Earplug 311

[0329] As shown in FIGS. 107, 108, and 109, the earplug 311 includes an inner earplug cover 311a and an outer earplug cover 311b, and the two can be fixedly connected.

[0330] As shown in FIGS. 108 and 109, the inner earplug cover 311a may have a substantially hollow rotating structure with both ends open. Some sound emission through holes 311d may be formed at the axial ends of the inner earplug cover 311a, and all these sound emission through holes 311d communicate with the internal cavity of the inner earplug cover 311a. The sound emission through holes 311d are spaced apart from each other and may be arranged according to a specific rule.

[0331] As shown in FIG. 108, in one embodiment, the sound emission through-holes 311d may be arranged side by side. The shapes of the sound emission through-holes 311d may be the same or similar. For example, each sound emission through-hole 311d may be a runway-shaped hole. In another embodiment, the shapes and arrangements of the sound emission through-holes 311d may be designed based on product requirements. For example, FIG. 110 shows four shapes and four arrangements of the sound emission through-holes 311d.

[0332] In this embodiment, a speaker is provided in the internal cavity of the in-ear plug inner cover 311a, and the sound from the speaker may pass through the sound emission through-holes 311d and enter a human ear (which will be further described below). The end of the in-ear plug inner cover 311a where the sound emission through-holes 311d are formed may be an earwax prevention structure, and the earwax prevention structure can reduce or prevent the intrusion of earwax into the speaker.

[0333] As shown in FIG. 109, a slot 311g may be further formed on the inner wall of the in-ear plug inner cover 311a. The slot 311g surrounds a circle, and the slot 311g may be far away from the sound emission through-holes 311d. The slot 311g coincides with the first skirt 316v of the in-ear plug support 316b, whereby the in-ear plug inner cover 311a is attached to the in-ear plug support 316b (the detailed assembly structure will be continuously described below).

[0334] As shown in FIGS. 108 and 109, several second bumps 311c may be provided on the surface of one end of the in-ear plug inner cover 311a, which is the end far from the sound emission through-holes 311d. These second bumps 311c are spaced apart from each other and may surround a circle.

[0335] As shown in FIGS. 107 to 109, the outer earplug cover 311b may be a substantially hollow rotating body with both ends open. The axial end of the outer earplug cover 311b can be fixedly connected to the end of the inner earplug cover 311a where the sound emission through hole 311d is formed. The outer earplug cover 311b can surround the inner earplug cover 311a. Some first bumps 311f may be provided on the inner wall of the other axial end of the outer earplug cover 311b. The second bumps 311c are spaced apart from each other and can surround a circle.

[0336] In this embodiment, the inner earplug cover 311a is made of a hard and difficult-to-deform material so that it can be reliably connected to the earplug support 316b, and can have the function of accommodating and protecting the earplug support 316b. The outer earplug cover 311b can be made of a soft and easily deformable material so as to fit and adapt to the external auditory canal.

[0337] The second electrode 314

[0338] As shown in FIG. 111, the second electrode 314 may include an electrode body 314a, an inner support platform 314b, and a conductive portion 314c. The electrode body 314a may be a ring structure surrounding the center line of the first earphone 31. The inner support platform 314b is located inside the electrode body 314a, and the inner support platform 314b may surround the electrode body 314a. The conductive portion 314c is substantially cylindrical, and the conductive portion 314c is located inside the electrode body 314a and can be disposed convexly on the inner support platform 314b. The second electrode 314 can be made of a conductive material, for example, a metal material.

[0339] Referring to FIGS. 111 and 88, the second electrode 314 can be connected to the earphone front housing 313z. The electrode body 314a of the second electrode 314 conforms to the third portion 313c of the earphone front housing 313z. The conductive portion 314c of the second electrode 314 can be electrically connected to a circuit board located within the second electrode 314 and within the second earphone circuit board assembly 317g (described below), whereby the second electrode 314 functions as another charging electrode. Details of the assembly structure will be described subsequently below.

[0340] Earphone rear housing assembly 315

[0341] As shown in FIGS. 112, 113, and 114, the earphone rear housing assembly 315 may include an earphone rear housing 315a, a first primary microphone mesh 315g, an antenna 315f, a rear housing support 315d, and a second primary microphone mesh 315e. The first primary microphone mesh 315g, the antenna 315f, the rear housing support 315d, and the second primary microphone mesh 315e can all be housed inside the earphone rear housing 315a.

[0342] As shown in FIGS. 113, 114, and 115 (FIG. 115 is a schematic cross-sectional structure view of the A-A section of the rear housing 315a of the earphone in FIG. 112), the rear housing 315a of the earphone may be substantially bowl-shaped. The rear housing 315a of the earphone may include a bottom wall 315h and a circumferential side wall 315i surrounding the periphery of the bottom wall 315h. The circumferential side wall 315i and the bottom wall 315h surround an open cavity. A sound collection through hole 315c is provided in the bottom wall 315h, and the sound collection through hole 315c communicates with the internal cavity of the rear housing 315a of the earphone. Some air-cutting sound prevention through holes 315b may be provided in the circumferential side wall 315i, and the air-cutting sound prevention through holes 315b communicate with the internal cavity of the rear housing 315a of the earphone. For example, there may be two air-cutting sound prevention through holes 315b, and the two air-cutting sound prevention through holes 315b may be basically symmetrically distributed on both sides of the sound collection through hole 315c. Alternatively, the number of the air-cutting sound prevention through holes 315b may be two or more, for example, three or four, and these air-cutting sound prevention through holes 315b may be spaced apart from each other.

[0343] Antenna 315f

[0344] In this embodiment, the antenna 315f may be a common mode antenna and may include two antenna stubs that are physically separated but can operate in a coupled mode. The two antenna stubs are coupled so that the antenna 315f operates in a specified frequency band. The antenna 315f may be, for example, a Bluetooth antenna, and the specified frequency band may be, for example, 2.4 GHz.

[0345] As shown in FIG. 116, in Embodiment 1 of this embodiment, the antenna 315f may include a first antenna stub 315z and a second antenna stub 315y. Both the first antenna stub 315z and the second antenna stub 315y may be substantially bent narrow strip structures.

[0346] As shown in FIG. 116, the first antenna stub 315z may include a first section 315z3 and a second section 315z4, and the first section 315z3 and the second section 315z4 are bent and connected. For example, the first section 315z3 and the second section 315z4 may be substantially orthogonal to each other. An end of the first section 315z3 that is far from the second section 315z4 is referred to as a head end 315z1, and an end of the second section 315z4 that is far from the first section 315z3 is referred to as a tail end 315z2. In other words, the head end 315z1 and the tail end 315z2 are opposite ends of the first antenna stub 315z, respectively. The first section 315z3 may be substantially linear, and the second section 315z4 may be bent.

[0347] As shown in FIG. 116, similarly, the second antenna stub 315y may also include a third section 315y3 and a fourth section 315y4, and the third section 315y3 and the fourth section 315y4 are bent and connected. For example, the third section 315y3 and the fourth section 315y4 may be substantially orthogonal to each other. An end of the third section 315y3 that is far from the fourth section 315y4 is referred to as a front end 315y1, and an end of the fourth section 315y4 that is far from the third section 315y3 is referred to as a rear end 315y2. In other words, the front end 315y1 and the rear end 315y2 are opposite ends of the second antenna stub 315y, respectively. The third section 315y3 may be substantially linear, and the fourth section 315y4 may be bent. As shown in FIG. 116, the first antenna stub 315z and the second antenna stub 315y may be basically centrosymmetric. That is, the first antenna stub 315z basically overlaps with the second antenna stub 315y after rotating 180° around the center. In the entire region occupied by the first antenna stub 315z and the second antenna stub 315y, from the front end 315z1 to the rear end 315z2 of the first antenna stub 315z, the first antenna stub 315z bends and extends along a path from the outside to the inside (for example, as seen from FIG. 116, the first antenna stub 315z is bent in the clockwise direction). And from the front end 315y1 to the rear end 315y2 of the second antenna stub 315y, the second antenna stub 315y is bent and extends along a path from the outside to the inside (for example, as seen from FIG. 116, the second antenna stub 315y is bent in the clockwise direction). The front end 315z1 and the front end 315y1 are located on the outside, and the front end 315z1 is far from the front end 315y1. Both the rear end 315z2 and the rear end 315y2 are located between the front end 315z1 and the front end 315y1, the rear end 315z2 is close to the rear end 315y2, and the rear end 315z2 and the rear end 315y2 are combined, whereby the antenna 315f operates in the 2.4G frequency band.

[0348] As described below, since both the front end 315z1 and the front end 315y1 are connected to a power supply point on the circuit board of the third earphone circuit board assembly 317h within the electronic assembly 317, both the first antenna stub 315z and the second antenna stub 315y can transmit and receive signals. The two power supply points may be symmetric with respect to the center line of the first earphone 31.

[0349] Referring to FIGS. 116, 112, and 115, in Embodiment 1, the antenna 315f may be disposed on the inner wall of the earphone rear housing 315a, and both the front end 315z1 and the front end 315y1 may be located on the inner surface of the circumferential side wall 315i of the earphone rear housing 315a, and both the rear end 315z2 and the rear end 315y2 may be located on the inner surface of the bottom wall 315h of the earphone rear housing 315a. From the front end 315z1 to the rear end 315z2 of the first antenna stub 315z, the second section 315z4 of the first antenna stub 315z may extend in a direction from the substantially circumferential side wall 315i to the bottom wall 315h. From the front end 315y1 to the rear end 315y2 of the second antenna stub 315y, the fourth section 315y4 of the second antenna stub 315y may extend in a direction from the substantially circumferential side wall 315i to the bottom wall 315h.

[0350] For example, the antenna 315f may be formed on the inner wall of the earphone rear housing 315a using laser direct structuring (LDS) technology. That is, the antenna 315f may be, for example, an LDS antenna.

[0351] Due to different wearing angles of the first earphone 31 in the external auditory canal, there is a possibility that the first antenna stub 315z approaches the human body, or the second antenna stub 315y approaches the human body. When the antenna stub approaches the human body, the antenna performance deteriorates (for example, the antenna efficiency decreases), and the signal quality deteriorates.

[0352] Therefore, when the first earphone 31 operates at different wearing angles, the first earphone 31 can detect an antenna stub with better signal quality at the antenna 315f, and use the antenna stub with better signal quality (the antenna stub farther from the human body) as the power supply terminal and select another antenna stub as the ground terminal. For example, the received signal strength (received signal strength indicator, RSSI) value can be detected to determine the signal quality of the antenna stub. The controller and the switch circuit may be built into the first earphone 31. The controller is configured to determine an antenna stub with good signal quality, switch the antenna stub to the power supply terminal using the switch circuit, and switch the antenna stub with low signal quality to the ground terminal. For example, the controller may be arranged on the circuit board in the second earphone circuit board assembly 317g (described below). For example, the switch circuit may be arranged on the circuit board in the third earphone circuit board assembly 317h (described below). It should be understood that the positions of the controller and the switch circuit can be designed as required and are not limited to the above description.

[0353] For example, when the first earphone 31 is worn at the first wearing angle, the second antenna stub 315y is farther from the human body. In this case, the first earphone 31 may detect that the second antenna stub 315y has better signal quality, select the second antenna stub 315y as the power supply terminal, and select the first antenna stub 315z as the ground terminal. Alternatively, when the first earphone 31 is worn at the second wearing angle, the first antenna stub 315z moves farther away from the human body. In this case, the first earphone 31 may detect that the first antenna stub 315z has better signal quality, select the first antenna stub 315z as the power supply terminal, and select the second antenna stub 315y as the ground terminal.

[0354] In the antenna 315f of this embodiment, two antenna stubs that are symmetrically distributed and operate in a coupled mode are designed. Therefore, when the user wears the first earphone 31 at different wearing angles, the antenna performance of the first earphone 31 can be improved, thereby ensuring the communication quality and user experience of the first earphone 31.

[0355] As shown in FIG. 117, in Embodiment 2 of this embodiment, the antenna 315f may include a first antenna stub 315x and a second antenna stub 315w. Both the first antenna stub 315x and the second antenna stub 315w may have a substantially bent narrow strip structure.

[0356] As shown in FIG. 117, the first antenna stub 315x may include a first section 315x3 and a second section 315x4, and the first section 315x3 and the second section 315x4 are bent and connected. For example, the first section 315x3 and the second section 315x4 may be substantially orthogonal to each other. The end of the first section 315x3 that is far from the second section 315x4 is called the front end 315x1, and the end of the second section 315x4 that is far from the first section 315x3 is called the rear end 315x2. In other words, the front end 315x1 and the rear end 315x2 are the opposite ends of the first antenna stub 315x, respectively. The first section 315x3 may be substantially linear, and the second section 315x4 may be bent.

[0357] As shown in FIG. 117, similarly, the second antenna stub 315w may also include a third section 315w3 and a fourth section 315w4, and the third section 315w3 and the fourth section 315w4 are bent and connected. For example, the third section 315w3 and the fourth section 315w4 may be substantially orthogonal to each other. The end of the third section 315w3 that is far from the fourth section 315w4 is referred to as the front end 315w1, and the end of the fourth section 315w4 that is far from the third section 315w3 is referred to as the rear end 315w2. In other words, the front end 315w1 and the rear end 315w2 are respectively the opposite ends of the second antenna stub 315w. The third section 315w3 may be substantially linear, and the fourth section 315w4 may be bent.

[0358] As shown in FIG. 117, the first antenna stub 315x and the second antenna stub 315w may be basically centrosymmetric.

[0359] Unlike Embodiment 1, in Embodiment 2, throughout the region occupied by the first antenna stub 315x and the second antenna stub 315w, from the front end 315x1 to the rear end 315x2 of the first antenna stub 315x, the first antenna stub 315x is bent and extends along a path from the inside to the outside (for example, as seen from FIG. 117, the first antenna stub 315x is bent counterclockwise). Then, from the front end 315w1 and the rear end 315w2 of the second antenna stub 315w, the second antenna stub 315w is bent and extends along a path from the inside to the outside (for example, as seen from FIG. 117, the second antenna stub 315w is bent counterclockwise). The front end 315x1, the rear end 315x2, the front end 315w1, and the rear end 315w2 are all located on the outside. The front end 315x1 is coupled in proximity to the front end 315w1, whereby the antenna 315f operates in the 2.4G frequency band.

[0360] As shown in FIGS. 117, 112, and 115, in Embodiment 2, the antenna 315f may be disposed on the inner wall of the rear housing 315a of the earphone. Both the front end 315x1 and the front end 315w1 may be located on the inner surface of the circumferential side wall 315i of the rear housing 315a of the earphone. Both the rear end 315x2 and the rear end 315w2 may be located on the inner surface of the bottom wall 315h of the rear housing 315a of the earphone and may be close to the circumferential side wall 315i. Different from Embodiment 1, in Embodiment 2, from the front end 315x1 to the rear end 315x2 of the first antenna stub 315x, the second section 315x4 of the first antenna stub 315x may extend from the substantially bottom wall 315h in the direction of the circumferential side wall 315i. And from the front end 315w1 to the rear end 315w2 of the second antenna stub 315w, the fourth section 315w4 of the second antenna stub 315w may extend from the substantially bottom wall 315h in the direction of the circumferential side wall 315i.

[0361] Embodiment 2 provides another topological structure of the antenna 315f to meet the antenna design requirements of the first earphone 31.

[0362] As shown in FIG. 118, in Embodiment 3 of this embodiment, the antenna 315f may include a first antenna stub 315u and a second antenna stub 315v. Both the first antenna stub 315u and the second antenna stub 315v may be substantially bent narrow strip structures.

[0363] As shown in FIG. 118, the first antenna stub 315u may include a first section 315u3 and a second section 315u4, and the first section 315u3 and the second section 315u4 are bent and connected. For example, the first section 315u3 and the second section 315u4 may be substantially orthogonal to each other. An end of the first section 315u3 that is far from the second section 315u4 is referred to as a front end 315u1, and an end of the second section 315u4 that is far from the first section 315u3 is referred to as a rear end 315u2. In other words, the front end 315u1 and the rear end 315u2 are opposite ends of the first antenna stub 315u, respectively. The first section 315u3 may be substantially linear, and the second section 315u4 may be bent.

[0364] As shown in FIG. 118, similarly, the second antenna stub 315v may include a third section 315v3 and a fourth section 315v4, and the third section 315v3 and the fourth section 315v4 are bent and connected. For example, the third section 315v3 and the fourth section 315v4 may be substantially orthogonal to each other. An end of the third section 315v3 that is far from the fourth section 315v4 is referred to as a front end 315v1, and an end of the fourth section 315v4 that is far from the third section 315v3 is referred to as a rear end 315v2. In other words, the front end 315v1 and the rear end 315v2 are opposite ends of the second antenna stub 315v, respectively. The third section 315v3 may be substantially linear, and the fourth section 315v4 may be bent.

[0365] Unlike Embodiment 1, in Embodiment 3, from the entire area occupied by the first antenna stub 315u and the second antenna stub 315v, from the front end 315u1 to the rear end 315u2 of the first antenna stub 315u, the first antenna stub 315u is bent and extends along a path from the outside to the inside (for example, as seen from FIG. 118, the first antenna stub 315u is bent in the clockwise direction). And from the front end 315v1 and the rear end 315v2 of the second antenna stub 315v, the second antenna stub 315v is bent and extends along a path from the outside to the inside (for example, as seen from FIG. 118, the second antenna stub 315v is bent in the counterclockwise direction). The front end 315u1, the front end 315v1, and the rear end 315v2 are all located on the outside, and the rear end 315u2 is located on the inside. The rear end 315u2 is coupled in proximity to the front end 315v1, whereby the antenna 315f operates in the 2.4G frequency band.

[0366] As shown in FIGS. 117, 112, and 115, in Embodiment 3, the antenna 315f can be disposed on the inner wall of the earphone rear housing 315a. Both the front end 315u1 and the front end 315v1 may be located on the inner surface of the circumferential side wall 315i of the earphone rear housing 315a. Both the rear end 315u2 and the rear end 315v2 may be located on the inner surface of the bottom wall 315h of the earphone rear housing 315a, and the rear end 315v2 may be in proximity to the circumferential side wall 315i. Unlike Embodiment 1, in Embodiment 3, from the front end 315u1 to the rear end portion 315u2 of the first antenna stub 315u, the second section 315u4 of the first antenna stub 315u may extend in a direction from the substantially circumferential wall 315i to the bottom wall 315h. From the front end 315v1 to the rear end 315v2 of the second antenna stub 315v, the fourth section 315v4 of the second antenna stub 315v may also extend in a direction from the substantially bottom wall 315h to the circumferential side wall 315i.

[0367] Embodiment 3 provides another topological structure of the antenna 315f to meet the antenna design requirements of the first earphone 31.

[0368] In the foregoing embodiments, three topologies and three coupling methods of the antenna 315f have been enumerated. The embodiments of the present application are not actually limited thereto. Another topology structure and coupling method of the antenna 315f may alternatively be designed based on product requirements. For example, from the front end to the rear end, the second section may extend in a direction from the substantially bottom wall 315h to the circumferential side wall 315i, and the fourth section may extend in a direction from the substantially circumferential side wall 315i to the bottom wall 315h. The front end of the first antenna stub may be coupled to the rear end of the second antenna stub, whereby the antenna 315f operates in a specified frequency band.

[0369] In the above, three exemplary topologies of the antenna 315f have been described. In this embodiment, it will be understood that the specific structure of the antenna 315f may be designed based on product requirements and is not limited to the above description. For ease of explanation, hereinafter, the antenna 315f of Embodiment 1 will be used as an example to describe the content related to the antenna 315f.

[0370] The first primary microphone mesh 315g

[0371] The first primary microphone mesh 315g may be in a substantially circular sheet shape and may include several material layers such as an acoustic mesh and an adhesive layer. Referring to FIGS. 112 and 115, the first primary microphone mesh 315g can be fixedly connected to the bottom wall 315h of the earphone rear housing 315a. For example, the adhesive layer of the first primary microphone mesh 315g may adhere to the bottom wall 315h. Also, the first primary microphone mesh 315g covers the sound collection through hole 315c, and the sound that enters the sound collection through hole 315c can enter the internal cavity of the earphone rear housing 315a through the first primary microphone mesh 315g.

[0372] The rear housing support 315d

[0373] As shown in FIGS. 112 and 119, the rear housing support 315d may have a substantially hood shape. A through hole 315j may be provided in the rear housing support 315d.

[0374] The second primary microphone mesh 315e

[0375] As shown in FIG. 112, the second primary microphone mesh 315e may have a substantially circular sheet shape and may include several material layers such as an acoustic mesh, a foam, and an adhesive layer. Referring to FIGS. 112 and 119, the second primary microphone mesh 315e can be fixed to one side of the rear housing support 315d. For example, the adhesive layer of the second primary microphone mesh 315e may adhere to the side surface of the rear housing support 315d. Also, the second primary microphone mesh 315e covers the through hole 315j, and the sound entering the through hole 315j can pass through the second primary microphone mesh 315e.

[0376] FIG. 120 is a cross-sectional view taken along line B-B of the earphone rear housing assembly 315 of FIG. 113. FIG. 120 can represent the assembled structure of the earphone rear housing assembly 315. As shown in FIG. 120, the first primary microphone mesh 315g can be fixed to the inner surface of the bottom wall 315h of the earphone rear housing 315a. Referring to FIGS. 120 and 114, the first primary microphone mesh 315g covers the sound collection through hole 315c (the sound collection through hole 315c is not shown in FIG. 120 due to the sectional positional relationship in FIG. 113). The rear housing support 315d is attached to the internal cavity of the earphone rear housing 315a, and the rear housing support 315d is spaced apart from the bottom wall 315h and the first primary microphone mesh 315g. Accordingly, the rear housing support 315d and the earphone rear housing 315a surround the wind noise prevention cavity 315k. The wind noise prevention through hole 315b communicates with the wind noise prevention cavity 315k.

[0377] As shown in FIG. 120, the second primary microphone mesh 315e is located in the internal cavity of the earphone rear housing 315a. The second primary microphone mesh 315e may be fixed on the side of the rear housing support 315d and far from the bottom wall 315h. The second primary microphone mesh 315e covers the through hole 315j of the rear housing support 315d.

[0378] In the above, the structures of the earplug 311, the earplug support assembly 316, the first electrode 312, the earphone front housing assembly 313, the second electrode 314, and the earphone rear housing assembly 315 in the first earphone 31 have been described in detail. In the following, the entire assembled structure including the components will be described.

[0379] FIG. 121 is a schematic diagram showing a cross-sectional structure of the first earphone 31. Some structures are not shown due to the selection of the cross-sectional position. FIG. 122 is a partial enlarged view of the position A in FIG. 121.

[0380] As shown in FIG. 121, the first electrode 312 may be compatible with the second portion 313b of the earphone front housing 313z. Referring to FIGS. 102 and 87, the conductive portion 312b of the first electrode 312 may pass through the through hole 313d of the second portion 313b and extend to the internal cavity of the earphone front housing 313z.

[0381] As shown in FIGS. 121 and 122, the earplug support 316b can be compatible with the first portion 313a of the earphone front housing 313z. Referring to FIGS. 122 and 90, the second skirt 316w of the earplug support 316b may be adhered to the mounting groove 313f of the first portion 313a through the fixing region 316z of the front ventilation acoustic mesh 316a. The support 316u of the earplug support 316b may extend into the internal cavity of the earphone front housing 313z. Also, as shown in FIG. 122, the front ventilation hole 316x of the earplug support 316b may be close to the sound collection channel 313e of the earphone front housing 313z, and the blocking region 316y of the front ventilation acoustic mesh 316a is located between the front ventilation hole 316x and the sound collection channel 313e.

[0382] As shown in FIG. 122, the inner earplug cover 311a can be sleeved around the earplug support 316b. Referring to FIGS. 109 and 122, the slot 311g of the inner earplug cover 311a may be compatible with the first skirt edge 316v of the earplug support 316b, and there may be a specific interval between the end of the inner earplug cover 311a where the sound emission hole 311d is provided and the speaker mesh 316c of the earplug support 316b. The second bump 311c of the inner earplug cover 311a may contact the second skirt 316w of the earplug support 316b, thereby creating a gap between the inner earplug cover 311a and the second skirt 316w, and preventing the inner earplug cover 311a from blocking the front ventilation hole 316x near the second skirt 316w. It will be understood that the second bump 311c may be alternately arranged with the front ventilation hole 316x in order to prevent the second bump 311c from blocking the front ventilation hole 316x.

[0383] As shown in FIG. 122, the earplug outer cover 311b surrounds the periphery of the earplug inner cover 311a. The lower end of the earplug outer cover 311b may surround the periphery of the first portion 313a of the earphone front housing 313z, and the first bump 311f on the inner wall of the earplug outer cover 311b may also surround the periphery of the first portion 313a. By designing the first bump 311f, the structural strength of the earplug outer cover 311b is increased, so that when the user wears the first earphone 31, the swaying or vibration of the earplug outer cover 311b is reduced, thereby reducing the "stethoscope effect".

[0384] As shown in FIG. 121, the second electrode 314 is connected to the third portion 313c of the earphone front housing 313z and the earphone rear housing 315a.

[0385] In this embodiment, the earplug support assembly 316, the earphone front housing assembly 313, the second electrode 314, and the earphone rear housing assembly 315 can surround the internal cavity of the first earphone 31, and the electronic assembly 317 is housed in the internal cavity.

[0386] In this embodiment, after the first earphone 31 is disposed at a predetermined position in the third receiving groove 231f, the first electrode 312 can contact the first charging spring 231e in the third receiving groove 231f, and the second electrode 314 can contact the first charging spring 231e, whereby the host 2 charges the first earphone 31. Since the first electrode 312 and the second electrode 314 each have a 360-degree closed-loop structure, when the first earphone 31 is disposed in the third receiving groove 231f at an arbitrary angle, the first electrode 312 can always contact the first charging spring 231e, and the second electrode 314 can always contact the second charging spring 231c, so that the host 2 can reliably charge the first earphone 31. With such a structure of the first electrode 312 and the second electrode 314, the user can freely dispose the first earphone 31 in the third receiving groove 231f. Thereby, the user experience is improved.

[0387] In another embodiment, it is easily understood that one of the first electrode and the second electrode has a 360-degree closed-loop structure, and the other electrode forms an open-loop structure rather than a 360-degree closed-loop structure. In this way, on the premise that the first earphone can be charged, it is also possible to ensure that the first earphone is randomly arranged within a specific angular range.

[0388] For example, in the case of the first earphone 41 shown in FIG. 123, the first electrode 411 still has a 360-degree closed-loop structure, but there are two or more second electrodes 412. The second electrodes 412 are separated from each other, and the second electrodes 412 may be distributed on the same circle. Each second electrode 412 may be an open-loop structure. Alternatively, in another embodiment, there is a single second electrode 412, and the second electrode 412 is an open-loop structure including a notch. For example, the surrounding angle of the second electrode 412 may be 120 degrees, 180 degrees, or 270 degrees, etc. (less than 360 degrees).

[0389] Alternatively, in another embodiment, neither the first electrode nor the second electrode is closed 360 degrees, and the first electrode and the second electrode are each a single open-loop structure including a notch. Alternatively, one of the first electrode and the second electrode is a single open-loop structure including a notch, and the number of the other electrode is at least two. At least two electrodes are separated from each other and distributed on the same circle. Alternatively, there are at least two first electrodes and two second electrodes, and the first electrode and the second electrode are separated from each other and distributed on the same circle. Also, on the premise that the first earphone can be charged, the first earphone may be designed to be randomly arranged within a specific angular range.

[0390] In this embodiment, the first electrode 312 is electrically connected to the first charging spring 231e, or the second electrode 314 is electrically connected to the second charging spring 231c, and the first electrode 312 or the second electrode 314 may be further configured to realize communication between the first earphone 31 and the host 2. In other words, the first electrode 312 or the second electrode 314 may be further multiplexed as the communication electrode of the first earphone 31 to realize communication between the first earphone 31 and the host 2.

[0391] Different from this embodiment, in another embodiment, as shown in FIG. 124, the first earphone 51 may have a first electrode 512 and a second electrode 512, and the first electrode 512 and the second electrode 512 are dedicated to the host for charging the first earphone 51. The first earphone 51 further has a communication electrode 513, and the communication electrode 513 is dedicated to communication with the host. It should be understood that the first electrode 512, the second electrode 512, and the communication electrode 513 shown in FIG. 124 each have a 360-degree closed-loop structure, which is only an example. In fact, the structures, quantities, and distributions of the first electrode 512, the second electrode 512, and the communication electrode 513 can all be designed based on product requirements.

[0392] Electronic assembly 317

[0393] FIG. 125 and FIG. 126 respectively show the schematic structure of the electronic assembly 317 according to this embodiment. It should be understood that the structure of the electronic assembly 317 described below is only an example and does not limit the embodiments of the present application.

[0394] As shown in FIGS. 125 and 126, the electronic assembly 317 may include a first earphone circuit board assembly 317e, a second earphone circuit board assembly 317g, a third earphone circuit board assembly 317h, a flexible circuit board 317j, a speaker 317a, a wearing detection board 317b, a secondary microphone 317k, an earphone battery 317f, and a primary microphone 317i.

[0395] First earphone circuit board assembly 317e, second earphone circuit board assembly 317g, and third earphone circuit board assembly 317h.

[0396] First earphone circuit board assembly 317e, second earphone circuit board assembly 317g, and third earphone circuit board assembly 317h may be stacked sequentially at a distance from one another, and the three may be electrically connected via flexible circuit board 317j. First earphone circuit board assembly 317e, second earphone circuit board assembly 317g, and third earphone circuit board assembly 317h may each include a circuit board and circuits and components disposed on the circuit board.

[0397] For example, a wearing detection sensor may be disposed on the circuit board of first earphone circuit board assembly 317e, and the wearing detection sensor is configured to perform wearing detection of first earphone 31. The wearing detection sensor may be, for example, a gravity sensor (G-sensor), an inertial measurement unit (IMU), or a combination of ... measurement unit (IMU) sensor, bone conduction sensor, infrared The first earphone circuit board assembly 317g may include at least one of a infrared (IR) radiation sensor, a voice accelerometer (VACC), and a voice pickup unit (VPU), etc. A magnetic field sensor may further be disposed on the circuit board of the first earphone circuit board assembly 317e, and the magnetic field sensor is configured to detect a change in the magnetic flux of the host magnet to realize box-in and box-out of the first earphone 31 (the principle of box-in and box-out detection will be further described below). The magnetic field sensor is, for example, a Hall effect sensor or a magnetometer. For example, there may be two magnetic field sensors. For example, a charging circuit and a discharging circuit may be disposed on the circuit board of the second earphone circuit board assembly 317g. For example, a radio frequency circuit may be disposed on the circuit board of the third earphone circuit board assembly 317h.

[0398] Speaker 317a

[0399] As shown in FIG. 126, the speaker 317a can be electrically connected to the circuit board of the first earphone circuit board assembly 317e. The speaker 317a may be located on the side of the first earphone circuit board assembly 317e and far from the second earphone circuit board assembly 317g.

[0400] Wearing detection plate 317b

[0401] As shown in FIGS. 125 and 126, the wearing detection plate 317b may include a connected plate 317c and connection pins 317d. The connection pins 317d are drawn from the plate 317c and may be electrically connected (e.g., soldered) to the circuit board of the first earphone circuit board assembly 317e. The plate 317c may be located on the same side as the speaker 317a of the first earphone circuit board assembly 317e. The wearing detection plate 317b can conduct electricity and may be made of, for example, a metal material. When the wearing detection plate 317b approaches the human body, a coupling capacitance may occur. When the distance between the wearing detection plate 317b and the human body changes, the coupling capacitance value changes. The wearing detection of the first earphone 31 can be realized by detecting and processing the coupling capacitance value of the wearing detection plate 317b.

[0402] Secondary microphone 317k

[0403] As shown in FIGS. 125 and 126, the secondary microphone 317k is located on the side of the first earphone circuit board assembly 317e and far from the speaker 317a, and can be electrically connected to the circuit board of the first earphone circuit board assembly 317e. The secondary microphone 317k can be arranged on the circuit board of the first earphone circuit board assembly 317e. A through hole may be provided in the portion of the circuit board of the first earphone substrate assembly 317e corresponding to the secondary microphone 317k, and sound may be picked up by the secondary microphone 317k through this through hole. The secondary microphone 317k is configured to achieve noise reduction and may further be configured to perform wearing detection.

[0404] Earphone battery 317f

[0405] As shown in FIGS. 125 and 126, the earphone battery 317f may be positioned between the first earphone circuit board assembly 317e and the second earphone circuit board assembly 317g. The electrode pins of the earphone battery 317f can be electrically connected to the circuit board of the first earphone circuit board assembly 317e.

[0406] Primary microphone 317i

[0407] As shown in FIGS. 125 and 126, the primary microphone 317i may be positioned between the second earphone circuit board assembly 317g and the third earphone circuit board assembly 317h and can be electrically connected to the circuit board of the third earphone circuit board assembly 317h. The primary microphone 317i can be arranged on the circuit board of the third earphone circuit board assembly 317h. A through hole may be provided in a portion of the circuit board of the third earphone circuit board assembly 317h corresponding to the primary microphone 317i, and the human voice may be picked up by the primary microphone 317i through this through hole.

[0408] FIG. 127 shows an assembled structure including the electronic assembly 317 and another component of the first earphone 31. FIG. 128 is a partially enlarged view of position A in FIG. 127, and FIG. 129 is a partially enlarged view of position B in FIG. 127.

[0409] As shown in FIG. 127, the electronic assembly 317 can be housed in an internal cavity surrounded by the earplug support assembly 316, the earphone front housing assembly 313, the second electrode 314, and the earphone rear housing assembly 315.

[0410] As shown in FIG. 128, at least a part of the speaker 317a may be located in the internal cavity of the earplug support 316b. Sound waves emitted from the speaker 317a can pass through the speaker mesh 316c and the sound emission through-hole 311d and enter the external auditory canal. The front vent hole 316x balances the atmospheric pressure in the internal cavity of the earplug support 316b with the external atmospheric pressure, ensuring that the speaker 317a can operate normally. Further, the front vent hole 316x can also improve the noise reduction depth of the secondary microphone 317k.

[0411] As shown in FIG. 128, for example, the plate 317c of the wearing detection plate 317b may be fixed and connected (e.g., soldered) to the end of the earplug support 316b that is far from the speaker mesh 316c, and a conductor having a large area may be formed by connecting the wearing detection plate 317b and the earplug support 316b. Therefore, both the wearing detection plate 317b and the earplug support 316b can generate a coupling capacitance, whereby the wearing detection plate 317b and the earplug support 316b can be used for wearing detection. In other words, in addition to providing a support and accommodation function, the earplug support 316b can be further reused as a detection plate for wearing detection.

[0412] It will be understood that, based on product requirements, the assembled structure including the wearing detection plate and the earplug support may alternatively be in another form and is not limited to the above description. For example, when only a part of the earplug support is made of a conductive material, the wearing detection plate may be fixed and connected to a part of the earplug support, and an assembled structure including the wearing detection plate and the earplug support may be designed based on the respective structures of the wearing detection plate and the earplug support and the internal space of the first earphone.

[0413] In this embodiment, by using the wearing detection plate 317b and the earplug support 316b in combination as the detection plate for wearing detection, the area of the detection plate can be increased, and the consistency and reliability of wearing detection can be ensured. Since the earplug support 316b is closer to the inside of the external auditory canal than the wearing detection plate 317b, the capacitance detection data of the earplug support 316b is more accurate and reliable. This helps to improve the overall reliability of wearing detection. Also, if the earplug support 316b is reused as the detection plate for wearing detection, it will not affect the overall size of the first earphone 31, and the stacking space inside the first earphone 31 can be further reduced.

[0414] Furthermore, when the earplug support 316b is made of a high-strength material such as metal, on the premise of meeting the requirements for the structural strength of the earplug support 316b, the wall thickness and the overall structural size of the earplug support 316b can be reduced. Thereby, an appropriate compression deformation space can be ensured for the earplug outer cover 311b, and thereby the wearing feeling of the user can be ensured.

[0415] In this embodiment, for example, a wearing detection sensor, the wearing detection plate 317b, and the earplug support 316b may be used in combination to realize wearing detection. With this design, the consistency and reliability of wearing detection are greatly improved, and the possibility of false detection is reduced.

[0416] Based on the product requirements, in another embodiment, alternatively, wearing detection may be realized by using any one or any two of the wearing detection sensor, the wearing detection plate 317b, and the earplug support 316b.

[0417] As shown in FIG. 128, the first earphone circuit board assembly 317e may be located within the earphone front housing 313z. Referring to FIGS. 102, 87, 88, and 128, the conductive portion 312b of the first electrode 312 may pass through the through-hole 313d of the earphone front housing 313z and be electrically connected (e.g., soldered) to the circuit board of the first earphone circuit board assembly 317e, whereby the first electrode 312 functions as a charging electrode.

[0418] As shown in FIG. 128, one side of the circuit board of the first earphone circuit board assembly 317e may be attached to the noise reduction microphone mesh 313j. The secondary microphone 317k is located on the opposite side of the circuit board, and the secondary microphone 317k may correspond to the noise reduction microphone mesh 313j. Noise in the ear canal may sequentially pass through the speaker mesh 316c, the sound collection channel 313e, the noise reduction microphone mesh 313j, and the through-hole in the circuit board of the first earphone circuit board assembly 317e that corresponds to the secondary microphone 317k, and is picked up by the secondary microphone 317k. The speaker 317a generates an inverted signal whose phase is opposite to that of the noise signal, and this phase-inverted signal can cancel out the noise signal. In this way, the first earphone 31 can achieve active noise reduction.

[0419] When the first earphone 31 operates, the sound of the speaker 317a and the noise in the ear canal may pass through the front ventilation acoustic mesh 316a and leak to the outside from the front ventilation hole 316x. In this way, the pressure balance between the inside and outside of the ear canal is achieved, and the user's wearing comfort is improved. Alternatively, the front ventilation acoustic mesh 316a that blocks the front ventilation hole 316x may be removed. In this case, the front ventilation hole 316x may be made smaller. For example, the diameter of the front ventilation hole 316x is less than 0.22 mm.

[0420] Furthermore, the secondary microphone 317k can also be used for wearing detection. In principle, the speaker 317a can transmit a sound wave signal of a specific frequency. When the user is not wearing the first earphone 31, a large amount of sound wave signals may leak to the outside from the front vent hole 316x, and the signal intensity of the sound wave signals picked up by the secondary microphone 317k is low. When the user is wearing the first earphone 31, since the front vent hole 316x is blocked to a certain extent or completely, the secondary microphone 317k can pick up more sound wave signals, and the signal intensity of the sound wave signals picked up by the secondary microphone 317k becomes high. Therefore, whether the first earphone 31 is worn by the user can be determined by detecting the signal intensity of the signals picked up by the secondary microphone 317k.

[0421] As shown in FIG. 129, the second earphone circuit board assembly 317g may be located inside the second electrode 314. Referring to FIGS. 111 and 129, the conductive portion 314c of the second electrode 314 can be electrically connected (e.g., soldered) to the circuit board of the second earphone circuit board assembly 317g, whereby the second electrode 314 functions as a charging electrode.

[0422] As shown in FIG. 129, the third earphone circuit board assembly 317h can be carried by the rear housing support 315d. Referring to FIGS. 129 and 120, the side of the third earphone circuit board assembly 317h that is far from the primary microphone 317i may be attached to the second primary microphone mesh 315e. The primary microphone 317i can correspond to the second primary microphone mesh 315e. The voice uttered by the user can sequentially pass through the sound collection through hole 315c, the first primary microphone mesh 315g, the through hole 315j of the rear housing support 315d, the second primary microphone mesh 315e, and the through hole of the circuit board of the third earphone circuit board assembly 317h that corresponds to the primary microphone 317i, and can be picked up by the primary microphone 317i.

[0423] Referring to FIGS. 129 and 120, the external air flow can enter the cavity 315k for preventing aerodynamic noise from one aerodynamic noise prevention through-hole 315b and then flow out of the cavity 315k for preventing aerodynamic noise from another aerodynamic noise prevention through-hole 315b. In this way, the aerodynamic noise caused by the external air flow can be reduced or the pickup by the primary microphone 317i can be prevented.

[0424] Referring to FIGS. 116 and 129, the front end 315z1 and the front end 315y1 of the antenna 315f are respectively connected to the power supply points of the circuit board of the third earphone circuit board assembly 317h, for example, by soldering. The two power supply points may be symmetric with respect to the center line of the first earphone 31. In this way, the antenna 315f can radiate and receive signals.

[0425] Features and functions of the wearable device 1

[0426] In this embodiment, since the wearable device 1 includes the host 2 and the earphones, the wearable device 1 may have the following features and functions. For some features or functions shared by both the host 2 and the earphones, regarding the first earphone (for example, the first earphone 31, the first earphone 41, and the first earphone 51), since it is exactly the same as the second earphone, for the sake of simplicity, the first earphone 31 is mainly used as an example for description.

[0427] 1. When the host 2 is opened, the first earphone 31 is attached to the first part 21 of the host 2.

[0428] Referring to FIGS. 1 and 4, in this embodiment, when the host 2 is in the closed state, the first earphone 31 is accommodated in the space surrounded by the first accommodation groove 213y of the first part 21 and the third accommodation groove 231f of the second part 23.

[0429] FIG. 130 shows, in a side view, the positional relationship among the first host attachment magnet 213r2 of the first part 21, the second host attachment magnet 231v of the second part 23, and the earphone magnet 313g of the first earphone 31 when the host 2 is in the closed state. As shown in FIG. 130, the first host attachment magnet 213r2 and the second host attachment magnet 231v are each magnetically attached to the earphone magnet 313g.

[0430] In this embodiment, the magnetic field of the first host attachment magnet 213r2 is strong, and the magnetic attraction force between the first host attachment magnet 213r2 and the earphone magnet 313g is large. Also, the magnetic field of the second host attachment magnet 231v is weak, and the magnetic attraction force between the second host attachment magnet 231v and the earphone magnet 313g is small. As shown in FIGS. 1 to 4, when the host 2 gradually opens from the closed state, since the magnetic attraction force of the first host attachment magnet 213r2 is larger than the magnetic attraction force of the second host attachment magnet 231v, the first earphone 31 is attached to the first part 21 and rotates together with the first part 21 with respect to the second part 23.

[0431] In this embodiment, in order to enable a strong magnetic attraction force between the first host attachment magnet 213r2 and the earphone magnet 313g, an appropriate magnet design may be executed.

[0432] As shown in FIG. 131, in Embodiment Mode 1 of this embodiment, each first host accessory magnet 213r2 is a Halbach array formed by joining two single magnets, and the directions of the magnetic fields of the two single magnets (represented by arrows pointing from N to S) are different, whereby each first host attachment magnet 213r2 has two magnetic field directions. Referring to FIGS. 131 and 132, schematically, in each first host attachment magnet 213r2, the direction of the magnetic field of one single magnet (for example, the upper single magnet in FIG. 131) is generally from the radially outer side to the radially inner side of the first earphone 31, and the direction of the magnetic field of the other single magnet (for example, the lower single magnet in FIG. 131) is generally from the radially inner side to the radially outer side of the first earphone 31.

[0433] As shown in FIG. 131, each earphone magnet 313g may be a Halbach array formed by a single magnet, and different portions of each earphone magnet 313g may have different magnetic field directions. Referring to FIGS. 131 and 130, generally, the magnetic field direction of portion Q1 of each earphone magnet 313g is generally from the outside in the radial direction of the first earphone 31 towards the inside in the radial direction, and the magnetic field direction of the other portion Q2 is generally from the inside in the radial direction of the first earphone 31 towards the outside in the radial direction. By designing each earphone magnet 313g as a single magnet, the difficulty of assembling the earphone magnet 313g can be reduced. In another embodiment, each earphone magnet 313g may be formed by joining several (for example, two) single magnets.

[0434] Due to the design of the first host mounting magnet 213r2 and the earphone magnet 313g, the first host mounting magnet 213r2 and the earphone magnet 313g can be magnetically attached. Also, through product verification, a large magnetic attraction force can be obtained between the first host mounting magnet 213r2 and the earphone magnet 313g with this design.

[0435] Different from Embodiment 1, as shown in FIG. 132, in Embodiment 2 of this embodiment, each first host mounting magnet 213r2 is a Halbach array having four magnetic field directions. Each first host mounting magnet 213r2 may be formed by joining four single magnets, or may be a single magnet having four magnetic field directions. The magnet design in Embodiment 2 can meet the design requirement that the first earphone 31 is magnetically attached to the first portion 21.

[0436] Unlike Embodiment 1, as shown in FIG. 133, in Embodiment 3 of this embodiment, each first host-attached magnet 213r2 is a single magnet having a single magnetic field direction. For example, the magnetic field direction of each first host-mounted magnet 213r2 may be generally from the inner side to the outer side in the radial direction of the first earphone 31. Each earphone magnet 313g is a single magnet having a single magnetic field direction. For example, the magnetic field direction of each earphone magnet 313g may be generally from the inner side to the outer side in the radial direction of the first earphone 31. The magnet design in Embodiment 3 can meet the design requirement that the first earphone 31 is magnetically attached to the first portion 21.

[0437] Unlike Embodiment 1, as shown in FIG. 134, in Embodiment 4 of this embodiment, each first host-mounted magnet 213r2 is a Halbach array having three magnetic field directions. Each first host-mounted magnet 213r2 may be formed by joining three single magnets, or may be a single magnet having three magnetic field directions. Each earphone magnet 313g may have a single magnetic field direction. Also, the first electrode 312 and the second electrode 314 may be made of a material that can be magnetically attached by the first host-mounted magnet 213r2, for example, a magneto-conductive material (e.g., cold-rolled steel strip (steel plate cold common, SPCC) or SUS430). Both the first electrode 312 and the second electrode 314 can be magnetically attached to the first host-mounted magnet 213r2. The magnet design in Embodiment 4 can not only meet the design requirement that the first earphone 31 is magnetically attached to the first portion 21, but also has a simple design structure, is easy to manufacture, and is low in cost.

[0438] Alternatively, different from these embodiments, in Embodiment 5, the first earphone 31 may not incorporate an earphone magnet. The first electrode 312 and the second electrode 314 may be made of a material that can be magnetically attached by the first host attachment magnet 213r2, for example, a magnetically conductive material (e.g., SPCC or SUS430). As shown in FIG. 135, both the first electrode 312 and the second electrode 314 can be magnetically attached to the first host attachment magnet 213r2. In Embodiment 5, the first host attachment magnet 213r2 can be flexibly designed based on requirements and can have a single magnetic field direction or a plurality of magnetic field directions. The magnet design in Embodiment 5 can not only meet the design requirement that the first earphone 31 is magnetically attached to the first part 21, but also has a simple design structure, is easy to manufacture, and is low-cost.

[0439] In this embodiment, as shown in FIG. 136, since the diameter dimension of the first earphone 31 can be more than twice the groove depth of the first accommodation groove 213y, most of the first earphone 31 is exposed outside the first accommodation groove 213y. This design is convenient for the user to directly remove the first earphone 31 from the first part 21 after opening the host 2.

[0440] In the above embodiments, the magnet designs of the first host attachment magnet 213r2 and the earphone magnet 313g have been described. In practice, when the magnetic field strength of the second host attachment magnet 231v is smaller than that of the first host attachment magnet 213r2, with reference to the aforementioned principle, magnet design can also be performed for the second host attachment magnet 231v and the earphone magnet 313g.

[0441] From the above description, based on product requirements, in another embodiment, alternatively, even if the magnetic field strength of the first host-mounted magnet 213r2 is smaller than the magnetic field strength of the second host-mounted magnet 231v, after opening the host 2, it will be understood that the first earphone 31 is not sucked up by the first portion 21 and still remains accommodated in the second portion 23. Alternatively, the first portion of the host may not be provided with a first accommodation groove, and the first earphone can be attached to the first portion after opening the host.

[0442] When the first earphone 31 is disposed in the first portion 21, the first earphone 31 can be automatically disposed at a predetermined position.

[0443] As shown in FIGS. 137, 138, and 139, after opening the host 2 and removing the first earphone 31 from the host 2, the user can pick up the first earphone 31 by hand and position the first earphone 31 in a posture that substantially fits into the first accommodation groove 213y (specifically, the earplug 311 of the first earphone 31 substantially faces the end of the first accommodation groove 213y that is used to accommodate the earplug 311, and the earphone rear housing assembly 315 of the first earphone 31 substantially faces the end of the first accommodation groove 213y that is used to accommodate the earphone rear housing assembly 315, and the first earphone 31 can rotate at an arbitrary angle around the center line of the first accommodation groove 213y), and then place the first earphone 31 near the first accommodation groove 213y. Due to the action of the magnetic attraction force of the first host-mounted magnet 213r2 of the first portion 21 on the earphone magnet 313g of the first earphone 31, the first earphone 31 is corrected to a posture that fits into the first accommodation groove 213y and is automatically attached to the first accommodation groove 213y, thereby accurately and appropriately disposing the first earphone 31 in the first accommodation groove 213y.

[0444] According to the automatic positioning design in this embodiment, the user can conveniently dispose the first earphone 31 on the host 2 and complete the disposal without accurate alignment, thereby improving the user experience.

[0445] 3. When the first earphone 31 is disposed in the second portion 23 and cannot be easily separated from the second portion 23.

[0446] When the user disposes the first earphone 31 in the third receiving groove 231f of the second portion 23, the first earphone 31 is attached to the third receiving groove 231f under the influence of the magnetic attraction force of the second host mounting magnet 231v of the second portion 23 on the earphone magnet 313g of the first earphone 31. Even when the host 2 is turned over, the first earphone 31 does not come off from the third receiving groove 231f.

[0447] Furthermore, both the second charging spring 231c and the first charging spring 231e in the third receiving groove 231f may apply a specific extrusion pressure to the first earphone 31, and due to this extrusion pressure, the friction between the first earphone 31 and the second housing 231 of the second portion 23 may increase, thereby making it difficult for the first earphone 31 to come off from the third receiving groove 231f.

[0448] 4. The first earphone 31 may be disposed in the receiving groove at a random angle.

[0449] In this embodiment, every time the first earphone 31 is rotated by a predetermined angle around the center line of the first earphone 31, the first earphone 31 can be overlapped with the first earphone 31. Therefore, the rotated first earphone 31 can always be accurately received in the first receiving groove 213y or the third receiving groove 231f and can conform to the inner wall of the first receiving groove 213y or the third receiving groove 231f. Thereby, the user can dispose the first earphone 31 in the first receiving groove 213y or the third receiving groove 231f without holding the first earphone 31 at a certain angle.

[0450] For example, in the case of the first earphone 31 which is approximately octahedral, every time the first earphone 31 is rotated by 90° around the center line of the first earphone 31, the first earphone 31 can be overlapped with the first earphone 31. Even if the user rotates the first earphone 31 by 90°, 180°, 270°, etc., the first earphone 31 can still fit on the inner wall of the first accommodation groove 213y or the third accommodation groove 231f. Therefore, the first earphone 31 can be smoothly and accurately arranged in the first accommodation groove 213y or the third accommodation groove 231f. Also, as shown in FIGS. 137 to 139, when the first earphone 31 is arranged in the first accommodation groove 213y, since the magnetic force of the first host mounting magnet 213r2 has an angle correction function, even if the user randomly rotates the first earphone 31 (for example, rotates it by 10°, 35°, 55°), the angle of the first earphone 31 can be corrected to a normal angle by the magnetic force of the first host mounting magnet 213r2. In this way, the first earphone 31 can be smoothly and accurately arranged in the first accommodation groove 213y and can fit on the inner wall of the first accommodation groove 213y.

[0451] For example, in the case of the first earphone 31 which is approximately cylindrical, after rotating the first earphone 31 by an arbitrary angle around the center line of the first earphone 31, the first earphone 31 can be overlapped with the first earphone 31. Therefore, even if the user rotates the first earphone 31 by an arbitrary angle, the first earphone 31 can still fit on the inner wall of the first accommodation groove or the third accommodation groove. Therefore, the first earphone 31 can be smoothly and accurately arranged in the first accommodation groove or the third accommodation groove.

[0452] 5. Detection of the open / closed state of the host 2

[0453] As shown in FIG. 140, a first portion 21 of the host 2 has a magnetic field sensor 212g (which may be referred to as a first magnetic field sensor), and the magnetic field sensor 212g can be arranged, for example, on a circuit board 212a of the first portion 21. The magnetic field sensor 212g is configured to detect the magnetic flux of a state detection magnet 231x within a second portion 23 of the host 2. The magnetic flux of the state detection magnet 231x detected by the magnetic field sensor 212g may be directly proportional to the distance between the magnetic field sensor 212g and the state detection magnet 231x. When the host 2 is in a closed state, the magnetic flux detected by the magnetic field sensor 212g is the largest. When the host 2 is fully open, the magnetic flux detected by the magnetic field sensor 212g is the smallest.

[0454] In this embodiment, the magnetic field sensor 212g may be, for example, a Hall effect sensor or a magnetometer. The Hall effect sensor can detect changes in magnetic flux. When the Hall effect sensor detects that the magnetic flux has exceeded the hardware threshold of the Hall effect sensor, the Hall effect sensor can generate a corresponding signal and report the signal to the processor of the host 2. The processor of the host 2 can execute corresponding processing based on the signal of the Hall effect sensor. Different from the Hall effect sensor, the magnetometer can detect the value of the magnetic flux and report the value to the processor of the host 2. The processor of the host 2 can determine whether the magnetic flux detected by the magnetometer exceeds the software threshold built into the processor and execute corresponding processing based on the determination result. Hereinafter, an example in which the magnetic field sensor 212g is a Hall effect sensor will be used for explanation.

[0455] As shown in FIG. 140, after the user presses the cap 251, the host 2 gradually opens from the closed state, the distance between the magnetic field sensor 212g and the state detection magnet 231x gradually increases, and the magnetic flux of the state detection magnet 231x detected by the magnetic field sensor 212g tends to decrease. When the magnetic flux detected by the magnetic field sensor 212g is less than a first threshold, a first signal may be generated. The processor of the host 2 determines, based on the first signal, that the host 2 is in an open state.

[0456] Conversely, when Host 2 gradually closes from the open state, the distance between the magnetic field sensor 212g and the state detection magnet 231x gradually decreases, and the magnetic flux of the state detection magnet 231x detected by the magnetic field sensor 212g tends to increase. When the magnetic flux detected by the magnetic field sensor 212g is greater than the second threshold value, a second signal can be generated. Based on the second signal, the processor of Host 2 determines that Host 2 is in the closed state.

[0457] In this embodiment, when the processor of Host 2 determines that Host 2 is in the open state, the processor controls the display 211 to execute the corresponding interface display.

[0458] In this embodiment, when it is determined that Host 2 is in the open state and the first earphone 31 is in the third receiving groove 231f (hereinafter, a method for detecting whether the first earphone 31 is located in the third receiving groove 231f will be described), the communication electrode of Host 2 may transmit a signal to the communication electrode of the first earphone 31 to activate the first earphone 31. When it is determined that Host 2 is in the closed state and the first earphone 31 is located in Host 2, Host 2 may start foreign object detection, and after determining that no foreign object has invaded, start charging the first earphone 31. In another embodiment, the positions of the magnetic field sensor 212g and the state detection magnet 231x may be exchanged. Specifically, the magnetic field sensor 212g may be in the second part 23, and the state detection magnet 231x may be in the first part 21.

[0459] 6. Detection of the inbox / outbox state of the first earphone 31

[0460] The inbox / outbox state of the first earphone 31 is the relative positional relationship between the first earphone 31 and the first receiving groove 213y, and the relative positional relationship between the first earphone 31 and the third receiving groove 231f, and includes the following. The first earphone 31 is in the first receiving groove 213y and the third receiving groove 231f (the host 2 is closed and the first earphone 31 is inside the host 2). The first earphone 31 is located outside the third receiving groove 231f within the first receiving groove 213y (the host 2 is opened and the first earphone 31 is attached to the first portion 21), or the first earphone 31 is located outside the first receiving groove 213y within the third receiving groove 231f (the host 2 is opened and the first earphone 31 is attached to the second portion 23).

[0461] In this embodiment, both the host 2 and the first earphone 31 may detect the inbox / outbox state of the first earphone 31. This will be described in order below.

[0462] (1) The host 2 detects the inbox / outbox state of the first earphone 31.

[0463] As shown in FIG. 141, the second portion 23 of the host 2 has a magnetic field sensor 237 and a magnetic field sensor 238 (both can be called second magnetic field sensors as shown by the dashed boxes). The magnetic field sensor 237 can be close to the outer surface of the groove wall of the third receiving groove 231f, and the magnetic field sensor 238 can be close to the outer surface of the groove wall of the fourth receiving groove 231g. The magnetic field sensors 237 and 238 may be, for example, uniaxial Hall effect sensors or magnetometers. Hereinafter, an example in which the magnetic field sensors 237 and 238 are Hall effect sensors respectively will be used for explanation.

[0464] The magnetic field sensor 237 is configured to detect a change in the magnetic flux of the earphone magnet 313g within the first earphone 31. The magnetic flux of the earphone magnet 313g detected by the magnetic field sensor 237 may be directly proportional to the distance between the magnetic field sensor 237 and the earphone magnet 313g. When the first earphone 31 is positioned in the third accommodation groove 231f (the host 2 is closed and the first earphone 31 may be within the host 2, or the host 2 is open and the first earphone 31 may be attached to the second portion 23), the magnetic flux detected by the magnetic field sensor 237 is large. When the first earphone 31 is detached from the third accommodation groove 231f and attached to the first portion 21, the magnetic flux detected by the magnetic field sensor 237 is small.

[0465] In this embodiment, when the magnetic flux detected by the magnetic field sensor 237 is equal to or greater than a third threshold value, a third signal may be generated. Based on the third signal, the processor of the host 2 determines that the first earphone 31 is positioned in the third accommodation groove 231f.

[0466] In this embodiment, the processor of the host 2 can determine the inbox / outbox state of the first earphone 31 by combining the third signal transmitted by the magnetic field sensor 237 with the first signal or the second signal transmitted by the magnetic field sensor 212g. For example, when the processor receives the third signal and the first signal, the processor determines that the host 2 is open and the first earphone 31 is attached to the second portion 23. When the processor receives the third signal and the second signal, the processor determines that the host 2 is closed and the first earphone 31 is within the host 2.

[0467] When the magnetic flux detected by the magnetic field sensor 237 is less than the third threshold value but equal to or greater than a fourth threshold value, a fourth signal may be generated. Based on the fourth signal, the processor of the host 2 determines that the first earphone 31 has been detached from the third accommodation groove 231f and attached to the first portion 21 (as shown in FIG. 141).

[0468] Similarly, the magnetic field sensor 238 is configured to detect a change in the magnetic flux of the earphone magnet within the second earphone 32. As described above, the host 2 can determine the inbox / outbox state of the second earphone 32 by using the signal transmitted by the magnetic field sensor 238 or by combining the signals transmitted by the magnetic field sensor 238 and the magnetic field sensor 212g.

[0469] In conclusion, it is easily understood that the magnetic field sensor 237 located in the second portion 23 is configured to determine whether the first earphone 31 is within or outside the third receiving groove 231f. Similarly, the magnetic field sensor 238 located in the second portion 23 is configured to detect whether the second earphone 32 is within or outside the fourth receiving groove 231g.

[0470] In another embodiment, at least one of the magnetic field sensor 237 and the magnetic field sensor 238 may alternatively be located in the first portion 21 of the host 2. For example, the magnetic field sensor 237 may be located in the first portion 21 (e.g., near the outer surface of the groove wall of the first receiving groove 213y). The magnetic field sensor 237 may detect a change in the magnetic flux of the earphone magnet 313g of the first earphone 31 to determine whether the first earphone 31 is within or outside the first receiving groove 213y. The specific principle is the same as above. Details will not be described again here.

[0471] In this embodiment, when the host 2 determines that the first earphone 31 is within the third receiving groove 231f and the host 2 is in the open state, the communication electrode of the host 2 can transmit a signal to the communication electrode of the first earphone 31 to activate the first earphone 31. The host 2 may further charge the first earphone 31 through the first charging spring 231e and the second charging spring 231c. Additionally, the host 2 may further activate a charging overheat protection mechanism (described below). Alternatively, based on product requirements, it may not be necessary to charge the first earphone 31, and the charging overheat protection mechanism may not be activated.

[0472] In this embodiment, when the first earphone 31 is within the host 2 and the host 2 determines that it is in a closed state, the host 2 may activate a foreign object detection mechanism (described below), and further, charge the first earphone 31 and activate a charging overheat protection mechanism. Alternatively, based on product requirements, it may not be necessary to charge the first earphone 31 and the charging overheat protection mechanism may not be activated.

[0473] In another embodiment, when the first earphone 31 is within the first receiving groove 213y and the host 2 determines that it is in an open state, the first earphone 31 is activated (the principle will be described later).

[0474] (2) The first earphone 31 detects the inbox / outbox state of the first earphone 31.

[0475] As shown in FIG. 142, the first earphone 31 may have a magnetic field sensor 317z (which may be referred to as a third magnetic field sensor as represented by the dashed box), and the magnetic field sensor 317z may be disposed, for example, on the circuit board of the third earphone circuit board assembly 317h. The magnetic field sensor 317z may be, for example, a Hall effect sensor or a magnetometer. Hereinafter, an example in which the magnetic field sensor 317z is a Hall effect sensor will be used for description.

[0476] The magnetic field sensor 317z is configured to detect a change in the magnetic flux of the state detection magnet 231x in the second part 23 of the host 2. The magnetic flux of the state detection magnet 231x detected by the magnetic field sensor 317z may be directly proportional to the distance between the magnetic field sensor 317z and the state detection magnet 231x. When the first earphone 31 is located in the third accommodation groove 231f (the host 2 may be closed and the first earphone 31 may be inside the host 2, or the host 2 may be open and the first earphone 31 may be attached to the second part 23), the magnetic flux detected by the magnetic field sensor 317z is large. When the first earphone 31 is detached from the third accommodation groove 231f and attached to the first part 21, the magnetic flux detected by the magnetic field sensor 317z is small.

[0477] In this embodiment, when the magnetic flux detected by the magnetic field sensor 317z is equal to or greater than a fifth threshold value, a sixth signal may be generated. The controller of the first earphone 31 determines, based on the sixth signal, that the first earphone 31 is located in the third accommodation groove 231f.

[0478] In this embodiment, the controller of the first earphone 31 (which may be a central processing unit or a microcontroller unit (MCU)) may determine the inbox / outbox state of the first earphone 31 by combining the sixth signal transmitted by the magnetic field sensor 317z and the first signal or the second signal transmitted by the magnetic field sensor 212g (the first signal and the second signal may be transmitted via the communication electrodes of the host 2 and the communication electrodes of the first earphone 31). For example, when the controller receives the sixth signal and the first signal, the controller determines that the host 2 is open and the first earphone 31 is attached to the second part 23. When the controller receives the sixth signal and the second signal, the controller determines that the host 2 is closed and the first earphone 31 is inside the host 2.

[0479] When the magnetic flux detected by the magnetic field sensor 317z is less than the fifth threshold value but equal to or greater than the sixth threshold value, a seventh signal may be generated. The controller of the first earphone 31 determines, based on the seventh signal, that the first earphone 31 has detached from the third receiving groove 231f and is attached to the first portion 21.

[0480] As shown in FIG. 142, the second earphone 32 can also have a magnetic field sensor 327z (represented by a dashed box), and the magnetic field sensor 327z is configured to detect a change in the magnetic flux of the magnet 231w within the second portion 23. The magnetic field sensor 327z may be, for example, a uniaxial Hall effect sensor. As described above, the second earphone 32 can determine the inbox / outbox state of the second earphone 32 by using the signal transmitted by the magnetic field sensor 327z or by combining the signals transmitted by the magnetic field sensor 327z and the magnetic field sensor 212g.

[0481] In this embodiment, the first earphone 31 detects the inbox / outbox state of the first earphone 31, whereby the first earphone performs a corresponding operation.

[0482] When the first earphone 31 detects that the host 2 is in the closed state and the first earphone 31 is located in the third receiving groove 231f, the first earphone 31 may be in the sleep state.

[0483] When the first earphone 31 detects that the host 2 is in the open state and the first earphone 31 is located in the third receiving groove 231f, the first earphone 31 may be activated by the host 2. For example, the communication electrodes of the host 2 may transmit a signal to the communication electrodes of the first earphone 31 to activate the first earphone 31.

[0484] When the first earphone 31 detects that the host 2 is in the open state and the first earphone 31 is attached to the first part 21, the detection signal of the magnetic field sensor 317z triggers the controller of the first earphone 31 to operate, and the first earphone 31 is activated.

[0485] In this embodiment, since both the host 2 and the first earphone 31 can detect the inbox / outbox state of the first earphone 31, the risks that may occur due to the detection performed only by the host 2 or the first earphone 31 can be avoided (for example, when the detection is performed only by the host 2, if the power of the host 2 runs out, the inbox / outbox state of the first earphone 31 cannot be accurately detected), and the reliability of the detection of the inbox / outbox state of the first earphone 31 can be ensured.

[0486] 7. Foreign object detection mechanism

[0487] In this embodiment, when a foreign object (for example, liquid or solid or semi-solid dirt) enters the third receiving groove 231f of the host 2, the surfaces of the host 2 and the first earphone 31 may be contaminated, corroded, and rust may occur, which may cause functional abnormalities, thereby affecting the reliability and lifespan of the product. In particular, when a large amount of foreign objects come into contact with the second charging spring 231c and the first charging spring 231e in the third receiving groove 231f, charging abnormalities (or communication abnormalities) may occur.

[0488] In consideration of this, as shown in FIG. 143, a foreign object detection spring 231d is further arranged in the third receiving groove 231f and is configured to perform foreign object detection. The detection principle is as follows.

[0489] When a foreign object comes into contact with at least one of the foreign object detection spring 231d, the first charging spring 231e, and the second charging spring 231c, the waveform of the charging signal of the host 2 changes. For example, after a foreign object comes into contact with the foreign object detection spring 231d and the first charging spring 231e, or after a foreign object comes into contact with the foreign object detection spring 231d and the second charging spring 231c, or after a foreign object comes into contact with the foreign object detection spring 231d, the first charging spring 231e, and the second charging spring 231c, the waveform of the charging signal of the charging circuit of the host 2 changes. Such a charging signal with a changed waveform can be called an abnormal charging signal. When a foreign object comes into contact with at least one of the first charging spring 231e and the second charging spring 231c, the waveform of the charging signal of the host 2 does not change. Such a charging signal with an unchanged waveform can be called a normal charging signal.

[0490] When a foreign object is in contact with only one of the first charging spring 231e, the second charging spring 231c, and the foreign object detection spring 231d, or when no foreign object is in contact with any of the first charging spring 231e, the second charging spring 231c, and the foreign object detection spring 231d, the waveform of the charging signal of the host 2 does not change. In other words, the charging circuit generates a normal charging signal.

[0491] Therefore, the processor of the host 2 can determine whether a foreign object has entered the third receiving groove 231f based on the type of the charging signal. For example, when it is determined that the charging signal is an abnormal charging signal, the processor determines that a foreign object has entered the third receiving groove 231f. Conversely, when it is determined that the charging signal is a normal charging signal, the processor determines that no foreign object has entered the third receiving groove 231f.

[0492] In this embodiment, when host 2 determines that foreign matter has entered the third receiving groove 231f, the processor of host 2 can control the charging circuit in host 2 to turn off. Therefore, when the first earphone 31 is received in the third receiving groove 231f, no charging current exists between the first charging spring 231e and the first electrode of the first earphone 31, and no charging current exists between the second charging spring 231c and the second electrode of the first earphone 31. In this way, charging abnormalities (such as short circuits) can be prevented.

[0493] In this embodiment, when host 2 determines that foreign matter has entered the third receiving groove 231f, the processor of host 2 can further control the alarm module in host 2 to send an alarm and send the alarm to the user. The alarm module can be, for example, a speaker, buzzer, or motor in host 2. It can be understood that the alarm mechanism may not be necessary based on product requirements.

[0494] In this embodiment, when host 2 determines that no foreign matter has entered the third receiving groove 231f, the processor of host 2 can control the charging circuit in host 2 to turn on. Therefore, when the first earphone 31 is received in the third receiving groove 231f, host 2 can charge the first earphone 31 normally.

[0495] In another embodiment, based on product requirements, the host may not have a foreign matter detection mechanism.

[0496] 8. Host 2 charges the first earphone 31.

[0497] Referring to the above description, due to the structural design of the first electrode and the second electrode in the first earphone 31, after the first earphone 31 is placed in the third receiving groove 231f at a plurality of rotation angles, the first charging spring 231e can contact the first electrode 312, and the second charging spring 231c can contact the second electrode 314, ensuring that the host 2 can charge the first earphone 31 normally. This design can simplify the user's operation and improve the user experience.

[0498] 9. Charging overheat protection mechanism of the host 2

[0499] In this embodiment, heat is generated when the host 2 charges the first earphone 31. As a result, the temperature of the host 2 or the first earphone 31 may rise excessively. For example, due to improper use by the user and a short circuit in the internal circuit, the charging current of the host 2 becomes excessively large, and in this case, the temperature rise is likely to be excessive. Excessively high temperatures can affect the safety, service life, and reliability of the product, and may also affect the user experience.

[0500] Considering this, the host 2 may have a temperature detection module, and the temperature detection module may be arranged, for example, near the first receiving groove 213y and / or the third receiving groove 231f. The temperature detection module may be, for example, a thermistor. The temperature detection module is configured to detect the temperature at the mounting position of the temperature detection module and report the temperature to the processor of the host 2. Based on the detection information of the temperature detection module, the processor can determine whether the temperature rise exceeds a threshold. When the temperature rise is above the threshold, the processor can control the charging circuit of the host 2 to turn off so that the host 2 does not charge the first earphone 31 in order to suppress the temperature rise. When the temperature rise is below the threshold, the processor can control the charging circuit of the host 2 to turn on so that the host 2 can charge the first earphone 31. This charging overheat protection mechanism can improve the safety, service life, and reliability of the product and enhance the user experience.

[0501] In this embodiment, when the processor of host 2 determines that the temperature rise is excessively high, the processor further controls the alarm module of host 2 to send an alarm, and the alarm can be sent to the user. The alarm module can be, for example, a speaker, a buzzer, or a motor within host 2. It can be understood that the alarm mechanism may not be necessary based on product requirements.

[0502] In another embodiment, based on product requirements, the host may not have an overcharge protection mechanism.

[0503] The foregoing description is merely specific embodiments of the present application and is not intended to limit the protection scope of the present application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application shall be included within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wearable device including an earphone and a host, wherein the earphone is attached with an earphone magnet, the host includes a first part and a second part, the first part is configured to rotate with respect to the second part and open with respect to the second part, the host can be in an open state or the first part and the second part can be closed, so the host is in a closed state, the first part has a first receiving groove, the second part has a third receiving groove, when the host is closed, the first receiving groove and the third receiving groove surround a receiving space, the first part has a first host mounting magnet, when the host is closed, the earphone is received in the receiving space, the earphone magnet is magnetically attached to the first host mounting magnet, when the first part is opened with respect to the second part, the earphone is attached in the first receiving groove and can move with the first part, the first part or the second part has a second magnetic field sensor, the second magnetic field sensor is configured to detect the magnetic flux of the earphone magnet, the host includes a processor, the processor is configured to determine whether the earphone is located in the first receiving groove based on the detection signal of the second magnetic field sensor of the first part, or the processor is configured to determine whether the earphone is located in the third receiving groove based on the detection signal of the second magnetic field sensor of the second part, A wearable device.

2. The wearable device according to claim 1, wherein the first host mounting magnet is a Halbach array, and the earphone magnet is a single magnet or a Halbach array.

3. The first host mounting magnet is a Halbach array, the first host mounting magnet includes two connected single magnets, and the magnetic field directions of the two single magnets are different. The wearable device according to claim 1, wherein the earphone magnet includes one single magnet, and the single magnet is a Halbach array having two different magnetic field directions.

4. The second part has a second host mounting magnet, When the earphone is accommodated in the accommodation space, the earphone magnet is magnetically attached to both the first host mounting magnet and the second host mounting magnet, and the magnetic force between the earphone magnet and the first host mounting magnet is greater than the magnetic force between the earphone magnet and the second host mounting magnet. The wearable device according to claim 1.

5. A groove is provided at the periphery of the first part, the first part has a sealing member, several protrusions are provided on the surface of the sealing member, the several protrusions are arranged in pairs at intervals, the sealing member is fixed in the groove of the first part, the several protrusions of the sealing member are all connected to the bottom surface of the groove of the first part, and the surface of the sealing member that is far from the protrusions of the sealing member is exposed outside the groove of the first part. When the host is closed, the part of the sealing member that is exposed outside the groove of the first part contacts the second part to seal the gap between the first part and the second part, or A groove is provided at the periphery of the second part, the second part has a sealing member, several protrusions are provided on the surface of the sealing member, the several protrusions are arranged in pairs at intervals, the sealing member is fixed in the groove of the second part, the several protrusions of the sealing member are all connected to the bottom surface of the groove of the second part, and the surface of the sealing member that is far from the protrusions of the sealing member is exposed outside the groove of the second part. When the host is closed, the part of the sealing member that is exposed outside the groove of the second part contacts the first part to seal the gap between the first part and the second part. The wearable device according to claim 1.

6. The second part has a first charging spring and a second charging spring. The earphone has a centrosymmetric shape, and the earphone includes a first electrode and a second electrode. Both the first electrode and the second electrode are located outside the earphone and have a ring-shaped structure surrounding the center line of the earphone. The first electrode and the second electrode are spaced apart from each other. When the earphone is located in the second part, the first electrode contacts the first charging spring, and the second electrode contacts the second charging spring. The host includes a charging circuit configured to charge the earphone using the first charging spring and the second charging spring. The wearable device according to claim 1.

7. The second part has a foreign object detection spring. The host includes a processor configured to control the charging circuit to turn off based on an abnormal charging signal of the charging circuit and to control the charging circuit to operate based on a normal charging signal of the charging circuit. After a foreign object contacts the foreign object detection spring and at least one of the first charging spring and the second charging spring, the charging circuit generates the abnormal charging signal. Or, after a foreign object contacts at least one of the first charging spring and the second charging spring, or when a foreign object contacts only one of the first charging spring, the second charging spring, and the foreign object detection spring or no foreign object contacts any of them, the charging circuit generates the normal charging signal. The wearable device according to claim 6.

8. The first part or the second part has a temperature detection module. The host includes a processor, and the processor is configured to control the charging circuit to turn off when it determines that the detected temperature is equal to or higher than a threshold value based on the detection result of the temperature detection module. The processor is further configured to control the charging circuit to operate when it determines that the detected temperature is lower than the threshold value based on the detection result of the temperature detection module. The wearable device according to claim 6.

9. The second part has a state detection magnet, and the first part has a first magnetic field sensor configured to detect the magnetic flux of the state detection magnet. The host includes a processor, and the processor is configured to determine whether the host is in an open state or a closed state based on the detection signal of the first magnetic field sensor. The wearable device according to claim 1.

10. The second part has a state detection magnet, and the earphone has a third magnetic field sensor configured to detect the magnetic flux of the state detection magnet. The earphone has a controller configured to determine whether the earphone is located in the third accommodation groove based on the detection signal of the third magnetic field sensor. The wearable device according to claim 1.

11. The host includes a rotary shaft assembly, and the rotary shaft assembly includes a shaft sleeve, a driven member, an elastic member, and a first shaft. The shaft sleeve has an internal cavity, and the outside of the shaft sleeve is fixedly connected to the first part. The driven member has a shaft alignment surface and a through hole, and the through hole of the driven member penetrates the shaft alignment surface. The driven member is located in the internal cavity and can slide along the surface of the internal cavity but cannot rotate relative to the shaft sleeve. The elastic member is located in the internal cavity and presses the surface of the driven member that is far from the shaft alignment surface. A part of the first shaft is located in the internal cavity and is rotatably connected to the shaft sleeve. The part of the first shaft that is located in the internal cavity penetrates the through hole of the driven member and fits with the shaft alignment surface of the driven member to form a cam mechanism. The other part of the first shaft is located outside the internal cavity and is fixedly connected to the second part. The first part can rotate relative to the second part by using the rotating shaft assembly. In the process of the host switching from the closed state to the open state, the rotation stroke of the first part sequentially includes a first stroke section, a second stroke section, and a third stroke section. In the first stroke section, the driven member can move along the first shaft under the driving of the elastic force of the elastic member. The driven member rotates around the first shaft due to the articulation of the cam mechanism and the elastic member, and can rotate the shaft sleeve around the first shaft. Thereby, the shaft sleeve rotates the first part relative to the second part. In the second stroke section, the first part rotates relative to the second part under the driving of an external force, and can rotate the shaft sleeve and the driven member around the first shaft. In the third stroke section, the driven member can move along the first shaft under the driving of the elastic force of the elastic member. The driven member rotates around the first shaft due to the articulation of the cam mechanism and the elastic member, and can rotate the shaft sleeve around the first shaft. Thereby, the shaft sleeve rotates the first part relative to the second part. The wearable device according to claim 1.

12. The shaft alignment surface includes a first inclined surface, a flat surface, and a second inclined surface that are sequentially connected. The first inclined surface and the flat surface form an obtuse angle, the flat surface and the second inclined surface form an obtuse angle, and the first inclined surface, the flat surface, and the second inclined surface form a two-step ladder. In the first stroke section, the first inclined surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. In the second stroke section, the flat surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. In the third stroke section, the second inclined surface is in sliding contact with a portion of the first shaft that is located in the internal cavity. The wearable device according to claim 11.

13. The rotating shaft assembly includes a shaft sleeve, a second shaft, and a flexible circuit board. The shaft sleeve has an internal cavity. A channel is formed in the axial direction of the second shaft on the second shaft. A part of the second shaft is located in the internal cavity and is rotatably connected to the shaft sleeve. Another part of the second shaft is located outside the internal cavity. The flexible circuit board includes a first electrical connection end, a mounting portion, and a second electrical connection end. The mounting portion is located between the first electrical connection end and the second electrical connection end. The mounting portion includes a winding portion and a stacking portion that are connected to each other. When the flexible circuit board is attached to the second shaft, both the first electrical connection end and the second electrical connection end are located outside the internal cavity. The winding portion is wound around a portion of the second shaft that is located in the internal cavity. The stacking portion is in a folded state, and at least a part of the stacking portion is accommodated in the channel of the second shaft. The first part has a first host circuit board assembly, and the first host circuit board assembly is electrically connected to the first electrical connection end. The second part has a second host circuit board assembly, and the second host circuit board assembly is electrically connected to the second electrical connection end. The first part is fixedly connected to the outside of the shaft sleeve. The second part is fixedly connected to a part of the second shaft that is located outside the internal cavity. The first part can rotate relative to the second part by using the rotating shaft assembly. The wearable device according to claim 1.

14. The first host circuit board assembly includes a circuit board, and the circuit board has a ground point and a power supply point. The first part includes a first host housing, and the first host housing is fixedly connected to the outside of the shaft sleeve. The first host circuit board assembly is fixed to a surface of the first host housing that is far from the shaft sleeve. The first host housing is electrically connected to both the ground point and the power supply point. The first host housing is used as an antenna of the host. The wearable device according to claim 13.

15. The rotating shaft assembly includes a shaft contact member, and the shaft contact member is fixed to the shaft sleeve and is in sliding contact with a part of the second shaft that is located in the internal cavity. The second part includes a third host housing, and the third host housing is fixedly connected to a part of the second shaft that is located outside the internal cavity. The third host housing is used as an antenna of the host. The wearable device according to claim 14.

16. When closing the host, there is a gap between the first host housing and the third host housing, and the first host housing and the second host housing are coupled, the wearable device according to claim 15.

17. The first portion is one of the cover of the host and the body of the host, and the second portion is the other of the cover and the body. The host includes an open button, and the open button includes a cap, an elastic member, and a touch sensing spring. A part of the cap is located in the second portion, another part of the cap is located outside the second portion, the cap is movably connected to the second portion, and the cap has a bump located in the second portion. The elastic member is attached to the second portion to apply a repulsive force to the cap. The touch sensing spring is located in the second portion, and the touch sensing spring is spaced apart from the opposite side of the bump of the cap. When closing the host, the cap and the first portion form a buckle connection to latch the first portion and the second portion, and when the cap is pressed, it moves to the second portion, thereby releasing the buckle connection, and the bump of the cap presses the touch sensing spring, the wearable device according to claim 1.

18. The shape of the earphone and the first receiving groove are adapted, and / or the shape of the earphone and the third receiving groove are adapted, the wearable device according to claim 1.

19. The earphone includes an earplug, a first electrode, an earphone front housing, a second electrode, and an earphone rear housing, the first electrode is located between the earplug and the earphone front housing, the earphone front housing is connected to the first electrode and the second electrode, and the second electrode is connected to the earphone front housing and the earphone rear housing. When the earphone is accommodated in the first accommodation groove or the third accommodation groove, the earplug faces the rotation shaft assembly, and the rear housing of the earphone is on the side far from the rotation shaft assembly. The wearable device according to claim 1.

20. The wearable device according to claim 1, wherein the host includes a smart watch.

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