Intelligent watch shell structure
By designing the smartwatch casing structure to reduce the contact area between the retaining ring and the casing and the dial, and by using magnetic strips and auxiliary components to improve the positioning and damping feel of the dial, the problem of excessive wear on the retaining ring in traditional smartwatches is solved, extending its service life and reducing costs.
Patent Information
- Application Number
- CN202520492579.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The friction between the retaining ring, the casing, and the dial in traditional smartwatches leads to significant wear and tear, affecting their lifespan.
Design a smartwatch housing structure, wherein the retaining ring includes multiple first retaining parts and second retaining parts. The contact area between the retaining parts and the housing and the turntable is reduced, and the positioning and damping of the turntable are increased by magnetic strips and auxiliary components to reduce friction.
This reduces wear on the housing and turntable caused by the retaining ring, extends service life, and reduces material usage and cost.
Smart Images

Figure CN223796833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smartwatches, and in particular to a smartwatch casing structure. Background Technology
[0002] The smartwatch casing, as the core supporting structure, typically works with a retaining ring and a rotating disc to enable interaction and control the smartwatch's functional components. The rotating disc achieves interaction by rotating during use. The connection between the disc and the casing is achieved through the retaining ring's engagement with grooves in both the casing and the disc, restricting the disc's axial movement and increasing the tactile feedback during rotation. However, traditional retaining rings have a square cross-section. To ensure proper locking, the retaining ring often fits snugly against the corresponding grooves on the casing and disc, resulting in significant wear and tear on both components and a shorter lifespan. Utility Model Content
[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a smart watch housing structure to reduce the friction between the retaining ring and the housing and the rotating disc.
[0004] To solve the above-mentioned technical problems, the present invention provides a smart watch housing structure including a watch case, a retaining ring, and a rotating disc. The rotating disc is mounted on the watch case, and a retaining groove distributed circumferentially between the watch case and the rotating disc is provided. The retaining ring is installed in the retaining groove. The retaining ring includes a plurality of first retaining portions and second retaining portions distributed circumferentially at intervals. The first retaining portions extend inward and contact the watch case, and the second retaining portions extend outward and contact the rotating disc.
[0005] Furthermore, each of the second locking positions is correspondingly disposed between each of the two adjacent first locking positions, and a first clearance area is formed between any two adjacent first locking positions and inside the second locking position, and a second clearance area is formed between any two adjacent second locking positions and outside the first locking position.
[0006] Furthermore, the slot includes a first annular groove formed around the outer periphery of the watch case and a second annular groove formed around the inner periphery of the turntable, with the openings of the first and second annular grooves facing each other; the first locking part is engaged in the first annular groove and abuts against its inner wall inward, and the second locking part is engaged in the second annular groove and abuts against its bottom wall outward.
[0007] Furthermore, a first inclined surface that slopes outward and downward is formed on the first locking part, and a second inclined surface that is adapted to the first inclined surface is formed on the first annular groove at a position corresponding to the first inclined surface.
[0008] Furthermore, a third annular groove is formed between the turntable and the watch case and below the slot. The opening of the third annular groove faces upward and communicates with the first annular groove and the second annular groove. On the horizontal projection plane, the third annular groove is located between the first annular groove and the second annular groove. The retaining ring also has a protrusion extending downward into the third annular groove.
[0009] Furthermore, the number of protrusions is the same as the number of second locking parts, and each protrusion corresponds to one second locking part.
[0010] Furthermore, the watch case includes an annular base and an annular protrusion formed coaxially along the circumference of the annular base at the upper end of the watch case. The upper end of the annular base has a support surface arranged around the outer periphery of the annular protrusion. The turntable is rotatably fitted onto the outer periphery of the annular protrusion and abuts against the support surface. The slot is formed between the annular protrusion and the turntable.
[0011] Furthermore, a guide rail groove is provided circumferentially along the annular base on the support surface, and magnetic strips are spaced apart in the guide rail groove. Magnetic blocks corresponding to the positions of the magnetic strips are provided on the bottom surface of the turntable.
[0012] Furthermore, an auxiliary part for increasing turntable damping is provided in the guide rail groove at any position between any two adjacent magnetic strips.
[0013] Furthermore, the turntable is recessed with a groove, and the magnetic block is embedded in the groove; the auxiliary part includes a mounting groove recessed in the guide rail groove at any position between two adjacent magnetic strips, a spring disposed in the mounting groove, and a ball connected to the end of the spring and capable of passing through the mounting groove. When the turntable is installed on the housing, the spring causes a part of the ball to be located outside the mounting groove and allows the top of the ball to pass through the groove.
[0014] The smart watch casing structure of this utility model has at least the following beneficial effects: by setting a first locking part and a second locking part on the locking ring, the contact area between the locking ring and the watch case and the turntable is greatly reduced, the wear on the watch case and the turntable is reduced after the turntable rotates, and its service life is improved. Moreover, compared with the traditional locking ring, the material used is reduced and the cost is lowered. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is a schematic diagram of the smartwatch casing structure of this utility model;
[0017] Figure 2 This is a top view of the smart watch casing structure of this utility model;
[0018] Figure 3 for Figure 2 A cross-sectional view along the AA direction;
[0019] Figure 4 for Figure 3 An enlarged schematic diagram of part D shown;
[0020] Figure 5 for Figure 2 A cross-sectional view along the BB direction;
[0021] Figure 6 for Figure 5 An enlarged schematic diagram of part E shown;
[0022] Figure 7 for Figure 2 A cross-sectional view along the CC direction as shown;
[0023] Figure 8 for Figure 7 An enlarged schematic diagram of part F shown;
[0024] Figure 9 This is an exploded view of the smart watch casing structure of this utility model;
[0025] Figure 10 This is a schematic diagram of the structure of the retaining ring of this utility model;
[0026] Figure 11 This is a top view of the retaining ring of this utility model.
[0027] The meanings of the labels in the attached diagram are as follows:
[0028] 1. Case 1, Annular base 11, Mounting cavity 111, Fourth annular groove 112, Annular protrusion 12, Step groove 121, Strap surface 122, Lug 13, Side button 14, Support surface 15, Guide rail groove 151, Turntable 2, Groove 21, Snap ring 3, First snap-fit part 31, First inclined surface 311, Second snap-fit part 32, First clearance area 33, Second clearance area 34, Protrusion 35, Magnetic strip 41, Magnetic block 42, Auxiliary part 5, Mounting groove 51, Spring 52, Ball 53, Snap groove 6, First annular groove 61, Second inclined surface 611, Second annular groove 62, Third annular groove 63, First side 631, Second side 632. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings.
[0030] Please see Figures 1 to 11The smart watch casing structure of this utility model includes a watch case 1, a rotating disc 2 mounted on the watch case 1, and a retaining ring 3 mounted between the watch case 1 and the rotating disc 2. The watch case 1 is used to protect the internal components, enhance waterproof performance, and improve aesthetics and durability. The rotating disc 2 is used for timekeeping operation control and realizes interaction. The retaining ring 3 connects the watch case 1 and the rotating disc 2 through the locking effect between the rotating disc 2 and the watch case 1, allowing the rotating disc 2 to rotate relative to the watch case 1.
[0031] Please see Figures 1 to 9 In this embodiment, the watch case 1 includes an annular base 11 and an annular protrusion 12 formed coaxially along the annular base 11 at the upper end of the watch case 1. Most of the internal components of the smartwatch are installed in the annular base 11, and the inner side of the annular protrusion 12 is used to install the watch crystal of the smartwatch to block the components inside the annular base 11.
[0032] In this embodiment, the annular base 11 has an overall annular structure and an axially connected mounting cavity 111 is formed on its inner side. All internal components of the smartwatch (including the dial) are installed within the mounting cavity 111. For ease of understanding, one axial end face of the annular base 11 is defined as the top surface, and the other axial end face is defined as the bottom surface, with the top surface facing upwards and the bottom surface facing downwards. An annular protrusion 12 is formed on the top surface of the annular base 11. A fourth annular groove 112 is annularly recessed around the mounting cavity 111 on the bottom surface of the annular base 11. The inner side of the fourth annular groove 112 radially communicates with the mounting cavity 111 to form a mounting area for mounting the back cover of the smartwatch on the bottom surface of the annular base 11. The radially outward side of the mounting area is blocked by the groove wall of the fourth annular groove 112. Lugs 13 for connecting the watch strap are integrally formed on opposite sides of the annular base 11, with two lugs 13 on each side spaced apart. Each lug 13 has an axially oriented T-shaped threaded groove near the fourth annular groove 112 to facilitate connecting the back cover to the mounting area using screws. Side buttons 14 for controlling the timing display and adjusting the dial content are located on the side wall of the annular base 11, adjacent to the lugs 13. A support surface 15 is formed on the upper end (top surface) of the annular base 11, surrounding the outer periphery of an annular protrusion 12. The annular protrusion 12 is integrally connected to the inner side of the top surface of the annular base 11, and the support surface 15 is annular and coaxially located outside the annular protrusion 12. The portion of the top surface of the annular base 11, excluding the annular protrusion 12, is defined as a support surface 15. The support surface 15 is used to support the turntable 2, which is rotatably fitted onto the outer periphery of the annular protrusion 12 and abuts against the support surface 15.
[0033] In this embodiment, the annular protrusion 12 extends axially from the inward side of the top surface of the annular base 11 toward the side away from the annular base 11 and is integrally arranged around the circumference of the mounting cavity 111 in a circular shape. The inner surface of the annular protrusion 12 has a stepped groove 121 and an inclined strap surface 122. The strap surface 122 is located axially away from the mounting cavity 111, while the stepped groove 121 is located axially close to the mounting cavity 111. The stepped groove 121 facilitates the restriction of the installation of various parts within the mounting cavity 111 and the installation positioning of the dial. The space enclosed by the strap surface 122 is frustum-shaped with its narrow end facing the stepped groove 121. Scales are provided on the strap surface 122 to facilitate the control of the rotation position of the dial 2, etc., by observing the strap surface 122.
[0034] Please see Figures 1 to 9 In this embodiment, the turntable 2 is annular and coaxially fitted onto the outer side of the annular protrusion 12, with its bottom side supported on the support surface 15. To facilitate the use of the turntable 2, the inner surface of the turntable 2 and the outer surface of the annular protrusion 12 are spaced apart, allowing the turntable 2 to rotate when needed while reducing wear during rotation. Several grooves are formed circumferentially on the outer edge of the turntable 2. These grooves increase friction between the user's skin and the turntable 2 when the user slides it, thus facilitating rotation of the turntable 2.
[0035] In this embodiment, a guide rail groove 151 is provided circumferentially around the annular base 11 on the support surface 15. The guide rail groove 151 is formed by axial recess from the support surface 15 and is positioned directly opposite the bottom surface of the turntable 2. Multiple secondary grooves are recessed circumferentially within the guide rail groove 151, and each secondary groove contains a magnetic strip 41, resulting in multiple magnetic strips 41 spaced apart within the guide rail groove 151. Each magnetic strip 41 is arc-shaped, with the curvature parallel to the circumference of the guide rail groove 151 it belongs to, and the height of the magnetic strip 41 does not exceed the support surface 15, for a more reasonable and aesthetically pleasing arrangement. Magnetic blocks 42, corresponding to the positions of the magnetic strips 41, are provided on the bottom surface of the turntable 2. The number and position of the magnetic blocks 42 are adapted to the scale on the watch strap surface 122. The turntable 2 has recesses 21, the number of which are the same as the number of magnetic blocks 42. The positions of the recesses 21 are adapted to the scale settings. The magnetic blocks 42 are fixedly embedded in the recesses 21 so that the turntable can rotate after a certain force is applied. The turntable 2 is positioned by the electromagnetic cooperation between the magnetic blocks 42 and the magnetic strips 41. All of the magnetic blocks 42 are strong magnets.
[0036] In this embodiment, to enhance the positioning feel of the turntable 2 during rotation and provide clear feedback when the turntable 2 reaches the corresponding position, an auxiliary part 5 for increasing the damping of the turntable 2 is provided in the guide rail groove 151 at a position between any two adjacent magnetic strips 41. The number of magnetic blocks 42 corresponds to the scale setting, while the number of magnetic strips 41 is less than the number of magnetic blocks 42. Each magnetic block 42 corresponds to one magnetic strip 41. For example, when there are eight magnetic blocks 42, there are four magnetic strips 41. When four mutually spaced magnetic blocks 42 are directly opposite the four magnetic strips 41, the other four magnetic blocks 42 are located between each corresponding pair of adjacent magnetic strips 41. The auxiliary part 5 includes a mounting groove 51 recessed in the guide rail groove 151 at a position between any two adjacent magnetic strips 41, a spring 52 disposed in the mounting groove 51, and a ball 53 connected to the end of the spring 52 and capable of passing through the mounting groove 51. The ball 53 is made of a material such as iron or magnet that can magnetically engage with the magnetic blocks 42. When turntable 2 is mounted on the housing and rotates to the corresponding scale, the magnetic block 42 aligns with the scale on the magnetic strip 41 or the mounting groove 51. Spring 52 keeps a portion of the ball 53 outside the mounting groove 51, allowing the top of the ball 53 to penetrate the groove 21. As turntable 2 rotates, the bottom surface of turntable 2 presses down on the ball 53, compressing spring 52 until the next groove 21 aligns with the ball 53. At this point, spring 52 rebounds, causing the ball 53 to extend upwards into the groove 21. Simultaneously, the magnetic attraction of the magnetic block 42 also allows the ball 53 to quickly enter the groove 21. The interaction between the ball 53 and the groove 21 adds damping and positioning feedback to the rotation of turntable 2, providing better control over its rotation. It should be noted that no more than half of the ball 53 protrudes from the groove 21.
[0037] Please see Figures 1 to 11 To facilitate the installation of the retaining ring 3, a retaining groove 6 is provided between the watch case 1 and the turntable 2, distributed circumferentially. The retaining ring 3 is installed in the retaining groove 6, and the retaining ring 3 can restrict the axial movement of the turntable 2 by interlocking with the watch case 1 and the turntable 2. The retaining groove 6 includes a first annular groove 61 formed around the outer circumference of the watch case 1 and a second annular groove 62 formed around the inner circumference of the turntable 2, with the openings of the first annular groove 61 and the second annular groove 62 facing each other.
[0038] In this embodiment, the retaining ring 3 has a circular structure and is made of an elastic material such as plastic. To facilitate installation, the retaining ring 3 has a circular loop with a linear structure, and an opening is formed between its two ends to allow for widening of the retaining ring 3. This widening makes it easier for the retaining ring 3 to be installed in the retaining groove 6. The retaining ring 3 has multiple first retaining portions 31 that are circumferentially spaced and extend inward to contact the watch case 1, and multiple second retaining portions 32 that are circumferentially spaced and extend outward to contact the turntable 2. The positions of the first retaining portions 31 and the second retaining portions 32 can be arbitrarily configured, but preferably the second retaining portions 32 are distributed between each pair of adjacent first retaining portions 31, so that the first retaining portions 31 and the second retaining portions 32 are evenly distributed, resulting in a more uniform force distribution and a more stable structure when engaging with the watch case 1 and the turntable 2. The first retaining portions 31 achieve locking by engaging with the watch case 1, and the second retaining portions 32 achieve locking by engaging with the turntable 2. In this embodiment, the first locking portion 31 has an arc shape that protrudes inward from the center, and it engages with the first annular groove 61 and abuts against the inner wall of the first annular groove 61. The second locking portion 32 has an arc shape that protrudes outward from the center, and it engages with the second annular groove 62 and abuts against the inner wall of the second annular groove 62. This creates a first clearance area 33 between any two adjacent first locking portions 31 and inside the second locking portion 32, and a second clearance area 34 between any two adjacent second locking portions 32 and outside the first locking portion 31. The first clearance area 33 prevents the second locking portion 32 from contacting the first annular groove 61, and the second clearance area 34 prevents the first locking portion 31 from contacting the second annular groove 62. The first locking portions 31 and the second locking portions 32 are evenly distributed in a ring array.
[0039] In this embodiment, the first locking part 31 has an outwardly and downwardly inclined first slope 311, which is located at the bottom of the inner side of the first locking part 31. The first annular groove 61 has a matching second slope 611 at the position corresponding to the first slope 311. While the first slope 311 exists only in the first locking part 31, the second slope 611 is opened around the outer periphery of the annular protrusion 12, so that the opening of the first annular groove 61 is widened. This not only makes it easier for the first locking part 31 to quickly snap into the first annular groove 61 during installation, but also, when the first locking part 31 is subjected to an axial force and comes into contact with the second slope 611, the cooperation of the first slope 311 and the second slope 611 can disperse part of the force, thereby reducing the degree of wear to a certain extent. In another embodiment, when the first locking part 31 is inserted into the first annular groove 61, the first inclined surface 311 and the second inclined surface 611 are spaced apart, and the inclined surfaces can better prevent the first inclined surface 311 and the second inclined surface 611 from contacting each other.
[0040] In this embodiment, the retaining ring 3 also has downwardly protruding protrusions 35. Several protrusions 35 are configured and each corresponds to a second retaining part 32. Therefore, each second retaining part 32 has a protrusion 35 extending axially from its bottom, so that the number of protrusions 35 is the same as the number of second retaining parts 32, and each protrusion 35 corresponds to one second retaining part 32. To facilitate the installation of the protrusions 35, a third annular groove 63 is formed between the turntable 2 and the watch case 1, below the retaining groove 6. An L-shaped first side 631 is formed on the outer side of the annular protrusion 12 (the side facing the turntable 2) and on the bottom side of the first annular groove 6. The first side 631 extends to the support surface 15. After the turntable 2 is installed on the watch case 1, a second side 632 is formed on the inner side of the turntable 2 (the side facing the annular protrusion 12) opposite to the first side 631. The second side 632 is recessed relative to the other parts of the inner side of the turntable 2. The portion enclosed by the first side 631 and the second side 632 forms the third annular groove 63. The opening of the third annular groove 63 faces upward and communicates with the first annular groove 61 and the second annular groove 62. The protrusion 35 is located on the side of the second locking part 32 near the first clearance area 33. On the horizontal projection plane, the third annular groove 63 is located between the first annular groove 61 and the second annular groove 62. When the retaining ring 3 is inserted into the first annular groove 61 from the side, the protrusion 35 abuts against the bottom wall of the third annular groove 63, while the top of the first locking part 31 abuts against the top wall of the first annular groove 61, so that the first annular groove 61 and the third annular groove 63 restrict the retaining ring 3, and the protrusion 35 can also enhance the rigidity of the retaining ring 3. When the turntable 2 is installed, the second side 632 is recessed relative to the other inner sides, so it will not block the axial movement of the turntable 2. When the second annular groove 6 is aligned with the second locking part 32, the turntable 2 is locked on it. After installation, the second locking part 32 extends into the second annular groove 62, and the top wall of the second annular groove presses against the top of the second locking part 32. Thus, while the rotating disc 2 presses against the retaining ring 3, the retaining ring 3 also holds the rotating disc 2 onto the watch case 1. At this time, the first clearance area 33 reduces the contact between the retaining ring 3 and the watch case 1, and the second clearance area 34 reduces the contact between the retaining ring 3 and the rotating disc 2. When using the rotating disc 2, because the contact area is reduced, the wear on the rotating disc 2 and the watch case 1 is correspondingly reduced, greatly improving the service life of the watch case 1 and the rotating disc 2. In another embodiment, the protrusion 35 protrudes from the bottom of the first locking part 31.
[0041] Compared with existing technologies, the smartwatch casing structure of this invention greatly reduces wear on the turntable 2 and the casing, and improves the overall service life.
Claims
1. A smartwatch housing structure, comprising a watch case, a retaining ring, and a rotating disc, wherein the rotating disc is mounted on the watch case, characterized in that: The watch case and the turntable are provided with slots distributed circumferentially thereon, and the retaining ring is installed in the slots; the retaining ring includes a plurality of first retaining parts and second retaining parts distributed circumferentially at intervals, the first retaining parts extend inward and contact the watch case, and the second retaining parts extend outward and contact the turntable.
2. The smartwatch housing structure as described in claim 1, characterized in that: Each of the second locking parts is correspondingly disposed between each of the two adjacent first locking parts. A first clearance area is formed between any two adjacent first locking parts and inside the second locking part, and a second clearance area is formed between any two adjacent second locking parts and outside the first locking part.
3. The smartwatch housing structure as described in claim 2, characterized in that: The slot includes a first annular groove formed around the outer periphery of the watch case and a second annular groove formed around the inner periphery of the turntable, with the openings of the first and second annular grooves facing each other; the first locking part is engaged in the first annular groove and abuts against its inner wall inward, and the second locking part is engaged in the second annular groove and abuts against its bottom wall outward.
4. The smartwatch housing structure as described in claim 3, characterized in that: The first locking part has a first inclined surface that slopes outward and downward, and a second inclined surface that matches the first inclined surface is formed on the first annular groove at a position corresponding to the first inclined surface.
5. The smartwatch housing structure as described in claim 3, characterized in that: A third annular groove is formed between the turntable and the watch case and below the slot. The opening of the third annular groove faces upward and communicates with the first annular groove and the second annular groove. On the horizontal projection plane, the third annular groove is located between the first annular groove and the second annular groove. The retaining ring also has a protrusion extending downward into the third annular groove.
6. The smartwatch housing structure as described in claim 5, characterized in that: The number of protrusions is the same as the number of second locking parts, and each protrusion corresponds to one second locking part.
7. The smartwatch housing structure as described in any one of claims 1 to 6, characterized in that: The watch case includes an annular base and an annular protrusion formed coaxially along the circumference of the annular base at the upper end of the watch case. The upper end of the annular base has a support surface arranged around the outer periphery of the annular protrusion. The turntable is rotatably fitted around the outer periphery of the annular protrusion and abuts against the support surface. The slot is formed between the annular protrusion and the turntable.
8. The smartwatch housing structure as described in claim 7, characterized in that: The support surface is provided with a guide rail groove along the annular base in a circumferential direction. Magnetic strips are spaced apart in the guide rail groove, and magnetic blocks corresponding to the positions of the magnetic strips are provided on the bottom surface of the turntable.
9. The smartwatch housing structure as described in claim 8, characterized in that: An auxiliary part for increasing turntable damping is provided in the guide rail groove at any position between any two adjacent magnetic strips.
10. The smartwatch housing structure as described in claim 9, characterized in that: The turntable has a recessed groove, and the magnetic block is embedded in the groove. The auxiliary part includes a mounting groove recessed in the guide rail groove at any position between two adjacent magnetic strips, a spring set in the mounting groove, and a ball connected to the end of the spring and capable of passing through the mounting groove. When the turntable is installed on the housing, the spring causes a part of the ball to be outside the mounting groove and allows the top of the ball to pass through the groove.