Wearable device

Abstract

The invention provides wearable equipment. The wearable equipment comprises a shell, a first circuit board, a second circuit board, a flexible circuit board and a first supporting piece. The shell is provided with a first cavity and a second cavity. The first circuit board is arranged in the first cavity. The second circuit board is arranged in the second cavity and is provided with a first connecting part; the flexible circuit board is provided with a second connecting part; and the first supporting piece is connected between the first connecting part and the second connecting part, so that the second circuit board and the flexible circuit board are electrically conducted, and a gap is formed between the second circuit board and the flexible circuit board along the arrangement direction of the second cavity and the first cavity. In the wearable device, the flexible circuit board is supported by the first supporting piece in the direction from the second cavity to the first cavity, so that the first flexible circuit board is located in the first cavity, or the position of the first flexible circuit board in the second cavity is raised, and the problem of wall climbing of the flexible circuit board is avoided; or the wall climbing height of the flexible circuit board extending from the second cavity to the first cavity is reduced.

Description

[0001] This application is a divisional application with application number 202311841643.4, application date December 29, 2023, and invention name “Wearable Device”. Technical Field

[0002] The embodiments of the present application relate to the field of terminal technology, and in particular, to a wearable device. Background Art

[0003] Wearable device 200 is, for example, a watch. Figure 1 and Figure 2 As shown, in order to achieve miniaturization, a protrusion 203 is provided on the shell 201 of the wearable device 200 to accommodate structures such as a charging adsorption magnet, a photoplethysmography (PPG) module, and an electrocardiogram (ECG) module. The circuits of these structures are integrated and connected on a circuit board 205. The circuit board 205 is connected to a flexible circuit board 207 inside the protrusion 203, and then extends to the outside of the protrusion 203 through the flexible circuit board 207 to connect with the main board 209 of the device to achieve signal connection between the circuit board 205 and the main board 209; limited by the small space of the rear shell protrusion 203, the flexible circuit board 207 and the circuit board 205 are usually connected by welding methods such as laser welding or hot bar welding, but when the flexible circuit board 207 extends from the protrusion 203 to the outside of the peripheral side of the protrusion 203, there is a size difference in the arrangement direction, resulting in the problem of the flexible circuit board 207 climbing the wall and the risk of unreliable welding. Summary of the invention

[0004] In view of this, the present application provides a wearable device that reduces the wall climbing height of a flexible circuit board.

[0005] The present application provides a wearable device. The wearable device includes a housing, a first circuit board, a second circuit board, a flexible circuit board and a first support member. The housing is provided with a first cavity and a second cavity which are arranged in sequence and connected. The first circuit board is arranged in the first cavity. The second circuit board is arranged in the second cavity and is provided with a first connecting portion. The flexible circuit board is connected to the first circuit board and is electrically conductive, and the flexible circuit board is provided with a second connecting portion; the first support member is connected between the first connecting portion and the second connecting portion, so that the second circuit board and the flexible circuit board are electrically conductive, and there is a spacing along the arrangement direction of the second cavity and the first cavity.

[0006] In the above wearable device, the first support member keeps a distance between the flexible circuit board and the second circuit board along the arrangement direction of the first cavity and the second cavity. The flexible circuit board is supported by the first support member in the direction from the second cavity towards the first cavity, so that the first flexible circuit board is located in the first cavity, or the position of the first flexible circuit board in the second cavity is raised. When the first flexible circuit board is located in the first cavity, the flexible circuit board does not need to extend from the second cavity to the first cavity and have a climbing section when crossing the junction of the first cavity and the second cavity, thus avoiding the problem of the flexible circuit board climbing the wall. When the second connecting portion of the flexible circuit board is located in the second cavity, the distance between the flexible circuit board and the junction of the first cavity and the second cavity becomes smaller, thereby reducing the climbing height of the flexible circuit board extending from the second cavity to the first cavity.

[0007] In a possible implementation manner, the wearable device further includes a plurality of first components. The plurality of first components are respectively connected to one side of the flexible circuit board facing the second circuit board.

[0008] In the above implementation manner, the plurality of first components are respectively connected to the flexible circuit board and are located on the side of the flexible circuit board facing the second circuit board. The plurality of first components can utilize the space of the second cavity to reduce or avoid the plurality of first components on the flexible circuit board occupying the space of the first cavity, and avoid increasing the size of the overall wearable device along the arrangement direction.

[0009] In a possible implementation manner, the wearable device further includes a plurality of second components, and the plurality of second components are respectively connected to one side of the second circuit board facing the flexible circuit board.

[0010] In the above implementation manner, the plurality of first components and the plurality of second components are arranged face to face in the space formed by being supported by the first support member between the flexible circuit board and the second circuit board, reducing the space occupied by the first cavity along the arrangement direction, and effectively reducing the size of the wearable device along the arrangement direction.

[0011] In a possible implementation manner, the distance between the flexible circuit board and the second circuit board along the arrangement direction is less than the sum of the maximum value of the sizes of the plurality of first components along the arrangement direction and the minimum value of the sizes of the plurality of second components along the arrangement direction; and / or the distance between the flexible circuit board and the second circuit board along the arrangement direction is less than the sum of the minimum value of the sizes of the plurality of first components along the arrangement direction and the maximum value of the sizes of the plurality of second components along the arrangement direction; and / or when the sizes of the first component and the second component along the arrangement direction are less than the distance between the flexible circuit board and the second circuit board, the projections of the first component and the second component along the arrangement direction on the second circuit board intersect.

[0012] In the above-described embodiments, the distance between the flexible circuit board and the second circuit board is less than the sum of the maximum dimension of the plurality of first components in the arrangement direction and the minimum dimension of the plurality of second components in the arrangement direction, or less than the sum of the minimum dimension of the plurality of first components in the arrangement direction and the maximum dimension of the plurality of second components in the arrangement direction, such that the first component or the second component with the maximum dimension in the arrangement direction does not adopt the element arrangement form of stacking along the arrangement direction, so as to minimize the distance between the flexible circuit board and the second circuit board, which is beneficial to reducing the dimension of the wearable device in the arrangement direction. When the dimensions of the first component and the second component in the arrangement direction are less than the distance between the flexible circuit board and the second circuit board, a stacked arrangement form is adopted, reducing the occupied area in the plane perpendicular to the thickness space to make full use of the space of the second circuit board and the flexible circuit board in the arrangement direction.

[0013] In a possible embodiment, the wearable device further includes a connecting member. The connecting member is bonded between the first component and the second component. And / or the connecting member is bonded between the first component and the second circuit board. And / or the connecting member is bonded between the second component and the flexible circuit board.

[0014] In the above-described embodiments, the flexible circuit board and the second connecting member are connected by the connecting member, improving the connection reliability and reducing the movement amount of the flexible circuit board.

[0015] In a possible embodiment, the flexible circuit board includes a first section and a second section connected in sequence. The second section extends toward one side of the first section so that the second section is connected to the first circuit board; a second connecting portion is provided on the first section. The first section is flattened.

[0016] In the above-described embodiments, the first section is flattened, avoiding the climbing wall problem caused by the first section bending and extending between the first cavity and the second cavity. The first section of the flexible circuit board being flattened is beneficial to reducing the space occupied by the first section of the flexible circuit board in the arrangement direction on the side of the battery facing away from the first circuit board.

[0017] In a possible embodiment, the wearable device further includes a battery, which is disposed in the first cavity and located between the first circuit board and the second circuit board. The side of the flexible circuit board facing away from the plurality of first components faces the battery.

[0018] In the above-described embodiments, the plurality of first components are separated from the battery by the flexible circuit board, preventing them from colliding with the battery and being damaged when the first component and the flexible circuit board are separated by an external force, thereby protecting both the battery and the first component and improving the safety of the battery.

[0019] In a possible implementation, the flexible circuit board further includes a plurality of fourth sections, the fourth sections are connected to the first section and extend respectively to the periphery of the second cavity. The wearable device further includes a plurality of third components, the plurality of third components are respectively disposed in the first cavity and on the outer periphery of the second cavity, and each fourth section is connected to one third component.

[0020] In the above implementation, the first support member elevates the position of the flexible circuit board relative to the second cavity along the arrangement direction, which can also reduce the climbing height of the fourth section of the flexible circuit board connecting the third component, reduce the movement range of the fourth section, so as to reduce the risk of wrinkling caused by the forceful movement of the fourth section.

[0021] In a possible implementation, the first support member extends along the arrangement direction and is perpendicular to the first connection portion and the second connection portion.

[0022] In the above implementation, the first support member extends along the arrangement direction and is perpendicular to the first connection portion and the second connection portion, so as to reduce the occupied area of the first support member in the plane perpendicular to the arrangement direction, and increase the space for arranging components between the second circuit board and the flexible circuit board.

[0023] In a possible implementation, the wearable device further includes a charging coil. The charging coil is located in the second cavity, surrounds the outer periphery of the plurality of first components, and is connected to the second circuit board.

[0024] In the above implementation, the charging coil is located in the second cavity. By reducing the size of the second circuit board, a space for accommodating the charging coil is left in the second cavity. The charging coil does not occupy the size of the first cavity, that is, the charging coil does not increase the size of the first cavity along the arrangement direction, reducing the visual heaviness of the wearable device.

[0025] In a possible implementation, the wearable device further includes a magnet. The magnet is disposed on the second circuit board and is located in the second cavity. The magnet is configured to adsorb a charging device.

[0026] In the above implementation, the magnet can position the wearable device on a charging device, so that the cooperation between the charging coil of the wearable device and the coil of the charging device can improve the charging efficiency.

[0027] In a possible implementation, the wearable device further includes a second support member. The second support member is connected to the flexible circuit board or the second circuit board and supports between the flexible circuit board and the second circuit board. The second support member is spaced apart from the first support member and is respectively close to the edges of the second circuit board.

[0028] In the above-described embodiments, the first support member and the second support member are spaced apart and supported between the second circuit board and the flexible circuit board, providing a support force for the flexible circuit board and the second circuit board when subjected to an external force, thereby enhancing the spatial stability between the flexible circuit board and the second circuit board, and improving the reliability of the plurality of first components and the plurality of second components disposed in this space.

[0029] In a possible embodiment, a plurality of pads are respectively provided on both sides of the first support member, and the projections of the plurality of pads on the second circuit board along the arrangement direction are close to the edge of the second circuit board, and the plurality of pads are respectively welded to the second connection portion and the second circuit board.

[0030] In the above-described embodiments, when there is no climbing section in the flexible circuit board near the second connection portion, the projections of the plurality of pads on the second circuit board along the arrangement direction can be arranged at positions close to the edge of the second circuit board, enhancing the density of the welding positions on the layout of the second circuit board, which is beneficial to reducing the size of the second circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic cross-sectional view of a wearable device in the prior art.

[0032] Figure 2 It is Figure 1 A partial schematic diagram of the structure located in the protrusion of the shown wearable device welded to the flexible circuit board.

[0033] Figure 3 It is Figure 2 A partial top view schematic diagram of the shown flexible circuit board and the circuit board.

[0034] Figure 4 It is a partial cross-sectional view schematic diagram of a wearable device provided by an embodiment of the present application.

[0035] Figure 5 It is Figure 4 A schematic diagram of the assembly of the flexible circuit board, the second circuit board, the first support member, the second support member, the first component and the second component in the shown wearable device.

[0036] Figure 6 It is Figure 4 A partial schematic diagram of the structure located in the second cavity of the shown wearable device welded to the flexible circuit board.

[0037] Figure 7 It is Figure 6 A partial schematic diagram of the shown wearable device in another embodiment.

[0038] Figure 8 It is Figure 6 A partial schematic diagram of the shown wearable device in yet another embodiment.

[0039] Figure 9 In Figure 6 Another embodiment of the wearable device shown in the figure is a schematic diagram when the flexible circuit board opens the first accommodation hole.

[0040] Figure 10 In Figure 6 Another embodiment of the wearable device shown in the figure is a schematic diagram when the second circuit board opens the second accommodation hole.

[0041] Figure 11 In Figure 6 Another embodiment of the wearable device shown in the figure is a partial schematic diagram on the battery side when the third section of the flexible circuit board is omitted.

[0042] Figure 12 In Figure 4 Another embodiment of the wearable device shown in the figure is a partial schematic diagram on the battery side when the third section of the flexible circuit board is omitted.

[0043] Description of main component symbols

[0044] Wearable device: 100, 200; housing: 10, 201; first cavity: 101; cavity wall: 1011; second cavity: 103; first shell: 11; second shell: 12; screen: 13; junction: 1001; first circuit board: 20; second circuit board: 30; first connection part: 31; second accommodation hole: 301; flexible circuit board: 40, 207; second connection part: 401; first section: 41; second section: 43; third section: 45; fourth section: 47; first accommodation hole: 403; first support: 51; pad: 511; welding hole: 513, 513a; second support: 53; first component: 61; second component: 62; third component: 63; connecting piece: 70; battery: 80; charging coil: 91, 211; magnet: 93; circuit board: 205; protrusion: 203; main board: 209; middle shell: 210; arrangement direction: Z.

[0045] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0046] In order to further elaborate on the technical means and effects adopted by the present application to achieve the intended application purpose, the following is combined with the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

[0048] Some embodiments of the present application propose a wearable device. The wearable device includes a housing, a first circuit board, a second circuit board, a flexible circuit board, and a first support member. The housing is provided with a first cavity and a second cavity that are sequentially arranged and communicated along the arrangement direction. The first circuit board is disposed in the first cavity. The second circuit board is disposed in the second cavity. The flexible circuit board is used to connect the first circuit board and the second circuit board, and the flexible circuit board is provided with a second connection portion. The first support member is connected between the second connection portion and the second circuit board along the arrangement direction.

[0049] In the above wearable device, the first support member enables the first flexible circuit board to be electrically connected to the second circuit board in the first cavity. The second connection portion of the flexible circuit board connected to the second circuit board in the second cavity is not located in the second cavity. When the flexible circuit board is connected to the first circuit board in the first cavity, there is no need to extend from the second cavity to the first cavity to form a climbing section, thus avoiding the climbing wall problem of the flexible circuit board. Or the first support member reduces the distance between the second connection portion of the flexible circuit board and the cavity wall of the first cavity facing the second cavity, thereby reducing the climbing height of the flexible circuit board extending from the second cavity to the first cavity.

[0050] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0051] Please refer to Figure 4 and Figure 5 , an embodiment of the present application proposes a wearable device 100. In one embodiment, the wearable device 100 is a watch worn on the wrist, but is not limited thereto. For example, in other embodiments, the wearable device 100 can also be a structure worn on the human or animal body such as a monitor, headphones, a bracelet, a ring, a VR glasses, etc., on fingers, ankles, arms, legs, faces, etc.

[0052] The wearable device 100 includes a housing 10, a first circuit board 20, a second circuit board 30, a flexible circuit board 40, and a first support member 51. The housing 10 is provided with a first cavity 101 and a second cavity 103 that are arranged in sequence and communicate with each other. For the convenience of subsequent description, the arrangement direction of the first cavity 101 and the second cavity 103 is set as the arrangement direction Z. The arrangement direction Z can be a horizontal direction, a vertical direction, or a direction inclined relative to the horizontal direction and the vertical direction. The arrangement direction Z is set for the arrangement of the first cavity 101 and the second cavity 103 inside the housing 10, and is independent of reference benchmarks such as the horizontal plane and the vertical plane outside the housing 10. The second circuit board 30 is disposed in the second cavity 103. The first circuit board 20 is disposed in the first cavity 101. The first circuit board 20 and the second circuit board 30 are connected by the flexible circuit board 40 to achieve electrical signal conduction. The first circuit board 20 is the main board 209 of the wearable device 100, and the circuits of at least one component such as PPG and ECG are integrated on the second circuit board 30. The flexible circuit board 40 communicatively connects the circuits of at least one component such as PPG and ECG with the main board 209.

[0053] In one embodiment, the housing 10 includes a first shell 11, a second shell 12, and a screen 13. The first shell 11 and the screen 13 are respectively connected to opposite sides of the second shell 12. The first shell 11, the second shell 12, and the screen 13 enclose a cavity. A part of the first shell 11 is recessed away from the screen 13 to form the second cavity 103, and the space in this cavity except for the second cavity 103 is the first cavity 101. The outer peripheral part of the first shell 11 at the junction 1001 of the first cavity 101 and the second cavity 103 forms the cavity wall 1011 of the first cavity 101, and the second cavity 103 is formed by the cavity wall 1011 of the first cavity 101 being recessed.

[0054] It can be understood that in other embodiments, the first shell 11 and the second shell 12 can also be of an integral structure; or, in another embodiment, for example, when the wearable device is a headphone without a screen, the screen 13 can also be omitted, and the first shell 11 and the second shell 12 form a space including the first cavity 101 and the second cavity 103. The specific structure of the housing 10 is not limited as long as the first cavity 101 and the second cavity 103 that are arranged in sequence and communicate with each other are formed inside the housing 10.

[0055] Please continue to refer to Figure 6 , the second circuit board 30 is provided with a first connection portion 31. The flexible circuit board 40 is provided with a second connection portion 401. The first support member 51 is connected between the first connection portion 31 and the second connection portion 401, so that the flexible circuit board 40 and the second circuit board 30 are electrically conducted, and there is a spacing between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z.

[0056] In one embodiment, the arrangement direction of the first connecting portion 31 and the second connecting portion 401 is parallel to the arrangement direction Z. The first support member 51 extends along the arrangement direction Z and is perpendicular to the second circuit board 30 and the flexible circuit board 40, so as to reduce the occupied area of the first support member 51 in the plane perpendicular to the arrangement direction Z, and increase the space for arranging components between the second circuit board 30 and the flexible circuit board 40.

[0057] It can be understood that in other embodiments, the first support member 51 can also extend in a direction inclined relative to the arrangement direction Z; the first connecting portion 31 and the second connecting portion 401 can also be arranged in a direction inclined relative to the arrangement direction Z. For example, the orthographic projection of the first connecting portion 31 along the arrangement direction Z on the second circuit board is spaced apart from the second connecting portion 401.

[0058] In one embodiment, after the flexible circuit board 40 is connected to the first support member 51, it crosses the junction 1001 between the first cavity 101 and the second cavity 103, and continues to extend along the cavity wall 1011 of the first cavity 101, but is not limited thereto.

[0059] It can be understood that in other embodiments, the flexible circuit board 40 may not pass through the junction 1001 between the first cavity 101 and the second cavity 103. For example, after the flexible circuit board 40 is connected to the first support member 51, it extends to one side of the second cavity 103 along the arrangement direction Z.

[0060] The first support member 51 makes the first flexible circuit board 40 have a spacing from the second circuit board 30 along the arrangement direction Z, and the flexible circuit board 40 is supported by the first support member 51 in the direction from the second cavity 103 towards the first cavity 101. The flexible circuit board 40 can be located in the first cavity 101 outside the second cavity 103; or the second connecting portion 401 of the flexible circuit board 40 is located in the second cavity 103 and partially extends into the first cavity 101 to be connected to the first circuit board 20.

[0061] When the entire flexible circuit board 40 is located in the first cavity 101, the second connecting portion 401 of the flexible circuit board 40 is located outside the second cavity 103. When the flexible circuit board 40 is connected to the second circuit board 30 in the second cavity 103 and continues to extend along the cavity wall 1011 of the first cavity 101, there is no need to cross the junction 1001 when extending from the second cavity 103 to the first cavity 101, thus avoiding the climbing problem of the flexible circuit board 40; without the need for the flexible circuit board 40 to climb and with the support of the first support member 51, the welding stability between the second connecting portion 401 and the first support member 51 is improved, and the tearing risk of the second connecting portion 401 and the first support member 51 during the assembly process is reduced.

[0062] When the second connecting portion 401 is connected to the first support member 51 within the second cavity 103, the first support member 51 raises the position of the flexible circuit board 40 in the second cavity 103 along the arrangement direction Z, so as to reduce the distance between the cavity wall 1011 of the first cavity 101 and the second connecting portion 401, thereby reducing the climbing height of the flexible circuit board 40 extending from the second cavity 103 to the first cavity 101, and avoiding a large dimensional drop of the flexible circuit board 40 along the arrangement direction Z, for example, a dimensional drop greater than 0.6 mm.

[0063] In one embodiment, the first support member 51 is a circuit board structure. A plurality of welding holes 513 are respectively provided on opposite sides of the first support member 51 along the arrangement direction Z. The welding holes 513 are through-hole structures, and the welding holes 513 are filled with solder. The first support member 51 is provided with pads 511 on the periphery of the through-hole of the through-hole machine. The pads 511 are connected to the second connecting portion 401 by means of laser welding or hot bar soldering (Hotbar), etc., improving the welding strength of the flexible circuit board 40. The pads 511 are soldered to the first connecting portion 31 of the second circuit board 30 by means of reflow soldering.

[0064] In another embodiment, as Figure 7 shown, in the wearable device 100a, the first support member 51 adopts a high density interconnector (HDI) design method, and the welding hole 513a is a hole structure formed by connecting a buried hole between two blind holes. The welding method of the first support member 51 with the flexible circuit board 40 and the second circuit board 30 is set according to needs.

[0065] It can be understood that in other embodiments, the first support member 51 can also be a plastic structure (not shown) with an embedded metal structure (not shown), where the metal structure serves as the pad of the first support member. The metal structure and the plastic structure can also be integrally formed.

[0066] In one embodiment, the wearable device 100 further includes a plurality of first components 61. The plurality of first components 61 are respectively connected to the flexible circuit board 40 and are located on a side of the flexible circuit board 40 facing the second circuit board 30. The first support member 51 is supported between the flexible circuit board 40 and the second circuit board 30, increasing the space between the flexible circuit board 40 and the second circuit board 30, and at least part of the first support member 51 is located within the second cavity 103. The plurality of first components 61 can utilize this part of the space, reducing or avoiding the plurality of first components 61 on the flexible circuit board 40 occupying the space of the first cavity 101 and avoiding increasing the size of the wearable device 100 as a whole along the arrangement direction Z.

[0067] In one embodiment, the wearable device 100 further includes a plurality of second components 62. The plurality of second components 62 are disposed on the second circuit board 30 and on the side of the circuit board 205 facing the flexible circuit board 40. The plurality of first components 61 and the plurality of second components 62 are arranged opposite to and staggered with each other between the flexible circuit board 40 and the second circuit board 30. That is, the plurality of first components 61 and the plurality of second components 62 extend in opposite directions along the arrangement direction Z, and their projections on the second circuit board 30 along the arrangement direction Z do not overlap.

[0068] The plurality of first components 61 and the plurality of second components 62 are disposed opposite to each other in the space formed and supported by the first support member 51 between the flexible circuit board 40 and the second circuit board 30, reducing the space occupied by the first cavity 101 along the arrangement direction Z, and effectively reducing the size of the wearable device 100 along the arrangement direction Z.

[0069] In one embodiment, the distance between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z is less than the sum of the maximum dimension of the plurality of first components 61 along the arrangement direction Z and the minimum dimension of the plurality of second components 62 along the arrangement direction Z. That is, the first component 61 with the maximum dimension along the arrangement direction Z will not overlap with any second component 62 along the arrangement direction Z, thereby minimizing the distance between the flexible circuit board 40 and the second circuit board 30.

[0070] In one embodiment, the distance between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z is less than the sum of the maximum dimension of the plurality of second components 62 along the arrangement direction Z and the minimum dimension of the plurality of first components 61 along the arrangement direction Z. That is, the second component 62 with the maximum dimension along the arrangement direction Z will not overlap with any first component 61 along the arrangement direction Z, thereby minimizing the distance between the flexible circuit board 40 and the second circuit board 30.

[0071] It can be understood that in other embodiments, the distance between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z can also be greater than or equal to the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z, or greater than the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z. For example, in another embodiment, when the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z is less than the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z, the distance between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z is greater than the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z, and less than the sum of the maximum size of the plurality of first components 61 along the arrangement direction Z and the minimum size of the plurality of second components 62 along the arrangement direction Z.

[0072] The projections of the plurality of first components 61 and the plurality of second components 62 on the second circuit board 30 do not overlap, avoiding the size superposition of the first components 61 and the second components 62 in the arrangement direction Z, and further effectively reducing the size of the wearable device 100 along the arrangement direction Z.

[0073] The first component 61 and the second component 62 can be respectively one of modules such as a chip, a Radio Link Control (RLC) circuit module, a Photoplethysmography (PPG) circuit module, an AFE (Active Front End) circuit module, an electrocardiogram measurement circuit module (electrocardiogram, ECG), a charging load switch module, a charging protection circuit, etc.

[0074] The size of the first support member 51 along the arrangement direction Z can be set according to the maximum size along the arrangement direction Z after the plurality of first components 61 and the plurality of second components 62 are connected between the flexible circuit board 40 and the second circuit board 30.

[0075] When the module does not need to be welded to the second circuit board 30, the module can be welded to the flexible circuit board 40 as the first component 61 to reduce the number of solder joints on the second circuit board 30 and improve the space utilization rate between the second circuit board 30 and the flexible circuit board 40. For example, in another embodiment, such as Figure 8As shown, in the wearable device 100b, the sum of the dimensions of one of the plurality of first elements 61 and one of the plurality of second elements 62 along the arrangement direction Z is n, and the maximum dimension of the plurality of first elements 61 and the plurality of second elements 62 along the arrangement direction Z is m. Since n is less than m, and m is less than the spacing between the flexible circuit board 40 and the second circuit board 30 along the arrangement direction Z, the first element 61 and the second element 62 intersect at the projection of the second circuit board 30, that is, the first element 61 and the second element 62 are arranged facing each other along the arrangement direction Z, and the two elements are arranged in a superimposed manner in the arrangement direction Z to reduce the occupied area in the plane perpendicular to the thickness space, so as to make full use of the space of the second circuit board 30 and the flexible circuit board 40 along the arrangement direction Z, so as to reduce the area of ​​the second circuit board 30 and the second cavity 103 perpendicular to the arrangement direction Z.

[0076] Please continue reading Figure 4 and Figure 6 In one embodiment, the wearable device 100 further includes a battery 80. The battery 80 is disposed in the first cavity 101. The battery 80 is located between the first circuit board 20 and the second circuit board 30 along the arrangement direction Z, but is not limited thereto. The battery 80, the flexible circuit board 40 and the second circuit board 30 are arranged along the arrangement direction Z. When the first element 61 is located between the flexible circuit board 40 and the second circuit board 30, the battery 80 is located on the side of the flexible circuit board 40 away from the plurality of first elements 61, that is, the side of the flexible circuit board 40 away from the plurality of first elements 61 faces the battery 80. The plurality of first elements 61 are separated from the battery 80 by the flexible circuit board 40, so as to avoid collision and damage to the battery 80 when the first element 61 and the flexible circuit board 40 are separated by external force, thereby protecting both the battery 80 and the first element 61 and improving the safety of the battery 80.

[0077] It is understandable that in other embodiments, the battery 80 may also be located between the first circuit board 20 and the screen 13 .

[0078] In one embodiment, please refer to Figure 11 , the second circuit board 30 is a circular plate-shaped structure, and the second cavity 103 is substantially a cylindrical cavity structure adapted to the second circuit board 30, but is not limited thereto. For example, in other embodiments, the second circuit board 30 may also be a plate-shaped structure of other shapes such as a rectangle or an ellipse. The second cavity 103 may also be a cavity structure of other shapes capable of accommodating the second circuit board 30.

[0079] In one embodiment, the flexible circuit board 40 includes a first section 41, a second section 43 and a third section 45 connected in sequence. The second section 43 is electrically connected to the first circuit board 20 through the third section 45. The second connecting portion 401 is provided in the first section 41. The first section 41 and the third section 45 are respectively located on opposite sides of the battery 80 along the arrangement direction Z. The third section 45 is connected to the first circuit board 20. The flexible circuit board 40 bypasses the battery 80 and is connected to the first circuit board 20, which is conducive to the layout of the first circuit board 20 and the battery 80 along the arrangement direction Z, so as to improve the layout rationalization in the first cavity 101 of the wearable device 100. The first section 41 is flattened, which avoids the wall climbing problem caused by the first section 41 bending and extending between the first cavity 101 and the second cavity 103. The first section 41 of the flexible circuit board 40 is flattened, which is conducive to reducing the space occupied by the first section 41 of the flexible circuit board 40 on the side of the battery 80 away from the first circuit board 20 along the arrangement direction Z.

[0080] In one embodiment, the second section 43 is perpendicular to the first section 41 and the third section 45 , but is not limited thereto.

[0081] It is understandable that in other embodiments, the third section 45 may also be omitted, and the second section 43 is connected to the first circuit board 20 after being bent relative to the first section 41 .

[0082] Existing technologies such as Figure 3 As shown, because the flexible circuit board 40 climbs the wall for a distance in the arrangement direction Z at the edge of the circuit board 205, and the circuit board 205 is a circular plate-like structure, the starting section of the flexible circuit board 40 that starts to climb the wall is a straight line, and the straight line is parallel to the chord of the pitch circle of the circular contour of the circuit board 205. This makes it impossible to arrange the welding position of the circuit board 205 between the minor arc and the chord, thereby reducing the layout density of the circuit board 205.

[0083] In one embodiment, please refer to Figure 4 , Figure 6 and Figure 9 Compared with the wearable device 100 in the prior art, when the flexible circuit board 40 has no wall climbing section near the second connecting portion 401, the projections of the multiple pads 511 of the first support member 51 along the arrangement direction Z on the second circuit board 30 can be arranged at a position close to the edge of the second circuit board 30, thereby improving the density of the layout welding positions of the second circuit board 30 and facilitating reducing the size of the second circuit board 30.

[0084] It can be understood that in other embodiments, the projections of the first support member 51 and the second connection portion 401 along the arrangement direction Z on the second circuit board 30 may also be located at other positions such as near the center of the second circuit board 30 .

[0085] In one embodiment, the first support member 51 is located near the edge of the second circuit board 30 close to the second section 43 of the flexible circuit board 40, but is not limited thereto.

[0086] To improve the spatial stability between the flexible circuit board 40 and the second circuit board 30, the wearable device 100 further includes a second support member 53. The second support member 53 is connected to the second circuit board 30 and supports between the flexible circuit board 40 and the second circuit board 30. The second support member 53 is spaced apart from the first support member 51 and is respectively near the edges of the second circuit board 30.

[0087] It can be understood that in other embodiments, the first support member 51 and the second support member 53 can also be located at other positions respectively. For example, the first support member 51 and / or the second support member 53 are near the center of the second circuit board 30.

[0088] In one embodiment, the numbers of the first support member 51 and the second support member 53 are each one, but are not limited thereto.

[0089] It can be understood that in other embodiments, one end of the second support member 53 can also be connected to the flexible circuit board 40 and the other end is grounded to the second circuit board 30. Or both ends of the second support member 53 are respectively connected to the flexible circuit board 40 and the second circuit board 30.

[0090] In one embodiment, the second support member 53 is a metal member, but is not limited thereto. For example, in other embodiments, the second support member 53 is a plastic member.

[0091] The first support member 51 and the second support member 53 are spaced apart and supported between the second circuit board 30 and the flexible circuit board 40, providing a support force for the flexible circuit board 40 and the second circuit board 30 when subjected to an external force, thereby improving the spatial stability between the flexible circuit board 40 and the second circuit board 30, and enhancing the reliability of the plurality of first elements 61 and the plurality of second elements 62 disposed in this space.

[0092] Please refer to Figure 4 and Figure 6 , in one embodiment, the wearable device 100 further includes a charging coil 91. The charging coil 91 is located in the second cavity 103 and surrounds the peripheries of the plurality of first elements 61 and the plurality of second elements 62. The charging coil 91 is connected to the second circuit board 30. The charging coil 91 is located in the second cavity 103, and by reducing the size of the second circuit board 30, a space for accommodating the charging coil 91 is left in the second cavity 103. The charging coil 91 does not occupy the size of the first cavity 101, that is, the charging coil 91 does not increase the size of the first cavity 101 in the arrangement direction Z, reducing the visual bulkiness of the wearable device 100.

[0093] In one embodiment, the charging coil 91 is adhesively bonded to the housing 10, that is, adhesively bonded to the bottom wall of the second cavity 103, which is beneficial to improving the position stability of the charging coil 91. In one embodiment, the charging coil 91 and the flexible circuit board 40 are spaced apart, but not limited thereto. For example, in another embodiment, the flexible circuit board 40 abuts against the charging coil 91 to further improve the position stability of the charging coil 91.

[0094] It can be understood that in other embodiments, the charging coil 91 can also be located in the first cavity 101, for example, as shown in the prior art Figure 1 As shown in Figure 1 , the wearable device 100 further includes a middle case 210. The middle case 210 is connected to the housing 10. The charging coil 211 is clamped between the middle case 210 and the housing 10 and is connected to the flexible circuit board 40. The middle case 210 and the housing 10 have high stability in clamping and fixing the charging coil 211.

[0095] It can be understood that in other embodiments, the first element 61 and / or the second element 62 can also be arranged on the outer periphery of the charging coil 91.

[0096] In one embodiment, the wearable device 100 further includes a magnet 93. The magnet 93 is arranged on the second circuit board 30 and is located in the second cavity 103. The magnet 93 is configured to adsorb a charging device (not shown in the figure). Specifically, the magnet 93 and the magnetic attraction structure (not shown in the figure) in the charging device attract each other, so that the charging device and the wearable device 100 are relatively positioned. The magnet 93 can position the wearable device 100 on a charging device, so that the cooperation between the charging coil 91 of the wearable device 100 and the coil of the charging device can improve the charging efficiency.

[0097] In one embodiment, the magnet 93 is located at the center of the second circuit board 30, but not limited thereto. The position of the magnet 93 is set according to the relative positions of the magnetic attraction structure and the coil in the charging device, and the position of the charging coil 91.

[0098] In one embodiment, the magnet 93 is fixedly connected to the second circuit board 30. The second circuit board 30 has a higher hardness than the flexible circuit board 40 and is not easily deformed, which is beneficial to the position stability of the magnet 93 in the housing 10, and further improves the positioning accuracy between the charging device and the wearable device 100.

[0099] It can be understood that in other embodiments, the magnet 93 can also be omitted.

[0100] Please refer to Figure 6, In one embodiment, the wearable device 100 further includes a plurality of connectors 70. The number of the connectors 70 is two, but is not limited thereto. One of the two connectors 70 is respectively connected to the flexible circuit board 40 and the magnet 93 along the arrangement direction Z, and the other of the two connectors 70 is connected to the flexible circuit board 40 and the second component 62 along the arrangement direction Z, thereby improving the connection reliability between the flexible circuit board 40 and the second connector 70 to reduce the movement amount of the flexible circuit board 40.

[0101] In one embodiment, the connector 70 is an adhesive tape, but is not limited thereto.

[0102] Among the plurality of second components 62 disposed on the second circuit board 30, one or more of the larger ones in the plane perpendicular to the arrangement direction Z on the side facing the flexible circuit board 40 can be selectively bonded with the connector 70, thereby improving the connection reliability.

[0103] It can be understood that in other embodiments, the connector 70 can also be bonded between the first component 61 and the second component 62, or the connector 70 is bonded between the first component 61 and the second circuit board 30, and the indirect connection between the flexible circuit board 40 and the second circuit board 30 can also be realized. For example, as Figure 8 shown, one of the two connectors 70 is connected between the flexible circuit board 40 and the second component 62, and the other of the two connectors 70 is connected between the first component 61 and the second component 62.

[0104] In one embodiment, the projection of the connector 70 on the flexible circuit board 40 along the arrangement direction Z substantially corresponds to the first section 41. The size of the connector 70 and / or the magnet 93 along the arrangement direction Z is adjustable, so that the first section 41 of the flexible circuit board 40 is in a stable flattened state to increase the wiring area of the flexible circuit board 40.

[0105] Please refer to Figure 9 , In another embodiment, the flexible circuit board 40 is provided with a first accommodation hole 403, and the first accommodation hole 403 penetrates the flexible circuit board 40 along the arrangement direction Z. A part of the second component 62 is accommodated in the first accommodation hole 403.

[0106] In one embodiment, one end of the second component 62 away from the second circuit board 30 is located in the first accommodation hole 403 and does not protrude from the side of the flexible circuit board 40 facing away from the second circuit board 30.

[0107] The part of the second component 62 accommodated in the first accommodation hole 403 makes the distance between the second circuit board 30 and the flexible circuit board 40 smaller than the size of the second component 62 along the arrangement direction Z, so as to facilitate reducing the overall size of the wearable device 100 along the arrangement direction Z.

[0108] It can be understood that in other embodiments, the first receiving hole 403 can also be a blind hole structure, so as to isolate the flexible circuit board 40 from the second component 62 and the structure (such as the battery 80) on the side of the flexible circuit board 40 away from the second circuit board 30.

[0109] It can be understood that in other embodiments, one end of the second component 62 can also protrude from the side of the flexible circuit board 40 away from the second circuit board 30 after passing through the first receiving hole 403.

[0110] Please refer to Figure 10 , in another embodiment, the second circuit board 30 is provided with a second receiving hole 301. The second receiving hole 301 penetrates the second circuit board 30 along the arrangement direction Z, but is not limited thereto.

[0111] In one embodiment, the end of the first component 61 away from the flexible circuit board 40 is located in the second receiving hole 301 and does not protrude from the side of the second circuit board 30 away from the flexible circuit board 40.

[0112] The part of the second receiving hole 301 that receives the first component 61 makes the distance between the second circuit board 30 and the flexible circuit board 40 smaller than the size of the first component 61 along the arrangement direction Z, so as to facilitate reducing the overall size of the wearable device 100 along the arrangement direction Z.

[0113] It can be understood that in other embodiments, the second receiving hole 301 can also be a blind hole structure.

[0114] It can be understood that in other embodiments, one end of the first component 61 can also protrude from the side of the second circuit board 30 away from the flexible circuit board 40 after passing through the second receiving hole 301.

[0115] Please refer to Figure 5 , in one embodiment, the flexible circuit board 40 further includes a plurality of fourth sections 47. The plurality of fourth sections 47 are respectively connected to the first section 41 and respectively extend towards the periphery of the second cavity 103. The wearable device 100 further includes a plurality of third components 63. The plurality of third components 63 are respectively disposed in the first cavity 101 and located on the outer peripheral side of the second cavity 103. Each fourth section 47 is connected to one or more third components 63. The plurality of third components 63 can be motors, grounding modules, MIC modules, barometers, etc.

[0116] In another embodiment, as Figure 12As shown, in the wearable device 100c, the first section 41 and the fourth section 47 are in a non-flattened state. The first support member 51 elevates the position of the flexible circuit board 40 relative to the second cavity 103 along the arrangement direction Z, which can also reduce the climbing height of the fourth section 47 of the flexible circuit board 40 connected to the third component 63, as well as reduce the climbing height of the first section 41, thereby reducing the movement range of the fourth section 47 and the first section 41, so as to reduce the risk of wrinkling caused by the forceful movement of the fourth section 47 and the first section 41.

[0117] In the above wearable device 100, when the flexible circuit board 40 is connected to the first circuit board 20 in the first cavity 101, there is no need to extend from the second cavity 103 to the first cavity 101 to form a climbing section, avoiding the climbing problem of the flexible circuit board 40; or the first support member 51 elevates the position of the second connection portion 401 of the flexible circuit board 40 along the arrangement direction Z in the second cavity 103 to reduce the distance between the cavity wall of the first cavity 101 facing the second cavity 103 and the second connection portion 401, thereby reducing the climbing height of the flexible circuit board 40 extending from the second cavity 103 to the first cavity 101 and avoiding a large dimensional drop of the flexible circuit board 40 along the arrangement direction Z.

[0118] In addition, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to limit the present application. As long as appropriate changes and variations made to the above embodiments fall within the scope of the spirit of the present application, they are within the disclosure scope of the present application.

Claims

1. A wearable device, comprising: a housing, a first cavity and a second cavity arranged along an arrangement direction; a first circuit board disposed in the first cavity; a second circuit board disposed in the second cavity and provided with a first connection portion; a flexible circuit board connected to and electrically conductive with the first circuit board, the flexible circuit board being provided with a second connection portion; wherein, the wearable device further comprises: a first support member connected between the first connection portion and the second connection portion, the first support member electrically connecting the second circuit board and the flexible circuit board.

2. The wearable device according to claim 1, wherein: The wearable device further comprises: a plurality of first components respectively connected to a side of the flexible circuit board facing the second circuit board; and a plurality of second components respectively connected to a side of the second circuit board facing the flexible circuit board.

3. The wearable device according to claim 2, wherein: The distance between the flexible circuit board and the second circuit board is less than the sum of the maximum dimension of the plurality of first components along the arrangement direction and the minimum dimension of the plurality of second components along the arrangement direction; and / or The distance between the flexible circuit board and the second circuit board is less than the sum of the minimum dimension of the plurality of first components along the arrangement direction and the maximum dimension of the plurality of second components along the arrangement direction; and / or When the sum of the dimensions of the first component and the second component along the arrangement direction of the second cavity and the first cavity is less than the distance between the flexible circuit board and the second circuit board, the projections of the first component and the second component along the arrangement direction on the second circuit board intersect.

4. The wearable device according to claim 2, characterized in that: The wearable device further comprises a connecting member; The projections of the first component and the second component along the arrangement direction on the second circuit board intersect, and the connecting member is bonded between the first component and the second component; and / or The connecting member is bonded between the first component and the second circuit board; and / or The connecting member is bonded between the second component and the flexible circuit board.

5. The wearable device according to any one of claims 2 to 4, characterized in that: The wearable device further comprises a battery, the battery being disposed in the first cavity; the battery, the flexible circuit board and the second circuit board are arranged along the arrangement direction.

6. The wearable device according to any one of claims 2 to 4, characterized in that: The flexible circuit board defines a first receiving hole, and a part of the second component is received in the first receiving hole; and / or The second circuit board is provided with a second receiving hole, and a part of the first component is received in the second receiving hole.

7. The wearable device according to any one of claims 1 to 4, characterized in that: The flexible circuit board includes a first section and a second section connected in sequence; The second section extends toward one side of the first section so that the second section is connected to the first circuit board; the second connection portion is disposed on the first section; the first section is in a flattened state.

8. The wearable device according to any one of claims 1 to 4, characterized in that: The flexible circuit board includes a first section and a second section connected in sequence; the second section extends toward one side of the first section so that the second section is connected to the first circuit board; the second connection portion is disposed on the first section; The flexible circuit board further includes a plurality of fourth sections, which are connected to the first section and extend respectively to the peripheral sides of the second cavity; the wearable device further includes a plurality of third components, which are respectively arranged in the first cavity and located on the outer peripheral side of the second cavity, and each of the fourth sections is connected to at least one of the third components.

9. The wearable device according to any one of claims 1 to 4, characterized in that: The first support member extends along the arrangement direction and is perpendicular to the first connection portion and the second connection portion.

10. The wearable device according to any one of claims 1 to 4, characterized in that: The wearable device further includes a charging coil; the charging coil is located in the second cavity and is connected to the second circuit board or the flexible circuit board.

11. The wearable device according to claim 10, wherein: The wearable device further includes a magnet, which is arranged on the second circuit board and located in the second cavity, and the magnet is configured to adsorb a charging device.

12. The wearable device according to any one of claims 1 to 4, characterized in that: The wearable device further includes a second support member, which is connected to the flexible circuit board or the second circuit board and supports between the flexible circuit board and the second circuit board; The second support member is arranged at an interval from the first support member.

13. The wearable device according to any one of claims 1 to 4, characterized in that: A plurality of pads are respectively arranged on both sides of the first support member, and the projections of the plurality of pads on the second circuit board along the arrangement direction are close to the edges of the second circuit board, and the plurality of pads are respectively welded to the second connection portion and the second circuit board.

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