A housing structure for a wearable device

Abstract

The present application relates to the technical field of wearable equipment, and particularly designs a shell structure of wearable equipment. The shell structure of wearable equipment comprises an outer shell, an inner shell and an arc-shaped limiting piece. The outer shell has a containing cavity. The outer peripheral surface of the inner shell is provided with a clamping groove. The arc-shaped limiting piece has a plurality of clamping keys arranged at intervals. The clamping keys have an avoiding gap with the inner wall surface of the outer shell. The avoiding gap is used for displacement of the clamping keys during buckling. The clamping keys are used for clamping into the clamping groove to fix the inner shell in the containing cavity. In use, since the clamping keys are displaced instead of being compressed during buckling, the hardness is relatively high. When clamped into the clamping groove, the buckling hand feeling is relatively strong, and is not easy to wear and tear, has a long service life, and is relatively firm in fixing the inner shell.

Description

Technical Field

[0001] This invention relates to the field of wearable device technology, and specifically designs a housing structure for wearable devices. Background Technology

[0002] With the improvement of living standards and the development of science and technology, wearable devices such as smart bracelets are becoming more and more common.

[0003] Wearable devices generally consist of an outer shell and an inner shell. The inner shell houses electronic components, while the outer shell is connected to a strap. The outer shell also has a cavity for housing the inner shell. The inner wall of the cavity in the outer shell has a fastening block made of TPU material, and the outer surface of the inner shell has a locking groove. The inner shell and outer shell are detachably connected by fastening the fastening block and locking groove.

[0004] However, because TPU material is relatively soft, the feel when fastening is weak, resulting in a poor user experience. Furthermore, TPU material is prone to wear and tear. Therefore, with the increase in the number of disassemblies, the feel of fastening will be significantly weakened, and the inner shell may also accidentally fall off due to insecure fastening. Summary of the Invention

[0005] The purpose of this invention is to provide a housing structure for wearable devices to improve the feel of fastening and extend the service life of the housing structure.

[0006] To address the aforementioned technical problems, the present invention provides a housing structure for a wearable device, comprising:

[0007] The outer shell has a receiving cavity;

[0008] An inner shell is installed in the receiving cavity, and a locking groove is provided on the outer peripheral surface of the inner shell;

[0009] An arc-shaped limiting component is disposed in the outer shell. The arc-shaped limiting component has a plurality of spaced-apart locking keys. There is a clearance gap between the locking keys and the inner wall surface of the outer shell. The clearance gap is used to allow the locking keys to move during the fastening process. The locking keys are used to engage in the locking groove to fix the inner shell in the receiving cavity.

[0010] Furthermore, the engaging key is a straight line segment that can engage in the engaging groove.

[0011] Furthermore, the arc-shaped limiting member includes an integrally injection-molded fastening member and an insulating bracket, the insulating bracket being used to support the fastening member within the receiving cavity.

[0012] Furthermore, the insulating support includes a plurality of spaced-apart arc-shaped segments, and the locking key is formed by the portion of the fastener located between two adjacent arc-shaped segments.

[0013] Furthermore, the engaging groove is an annular groove.

[0014] Furthermore, the engagement groove has a guide surface for guiding the engagement key into place.

[0015] Furthermore, the end of the inner shell is provided with a guide surface.

[0016] Furthermore, it also includes a vibration damper disposed between the outer shell and the inner shell, the vibration damper being used to prevent the vibration of the inner shell from being transmitted to the outer shell.

[0017] Furthermore, the vibration damping component includes a vibration damping bracket and an elastic buffer fixed together, with the vibration damping bracket fixed in the receiving cavity.

[0018] Furthermore, there is an interference fit between the elastic buffer and the inner shell.

[0019] Furthermore, there are two vibration damping components, each of which includes an arc-shaped vibration damping bracket and multiple elastic buffers fixed at intervals on the vibration damping bracket.

[0020] Furthermore, the number of the locking keys is the same as the number of the elastic buffers, and the locking keys and the elastic buffers are arranged at intervals in the axial direction of the housing and are in the same position in the circumferential direction.

[0021] Furthermore, the vibration damping bracket and the elastic buffer are fixed together by two-color injection molding.

[0022] Furthermore, the elastic buffer is made of thermoplastic polyurethane elastomer material.

[0023] Furthermore, the vibration damping bracket is made of polycarbonate.

[0024] Furthermore, the outer shell is made of metal, and the vibration damping bracket and the outer shell are fixedly connected by adhesive dispensing.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] In use, the wearable device housing structure of this invention involves pressing the inner shell into the receiving cavity of the outer shell. The inner shell presses against the locking key. Due to the existence of a clearance gap, the locking key moves into the clearance gap. As the inner shell moves into the outer shell, when the locking groove on the inner shell moves to the position corresponding to the locking key, the locking key resets and engages in the locking groove, thereby fixing the inner shell in the receiving cavity. Because the locking key has relatively high hardness, it displaces and quickly resets during the fastening process. Therefore, when it engages in the locking groove, the resulting fastening feel is strong, it is not prone to wear, has a long service life, and provides a more secure fixation to the inner shell. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the unfastened state of one embodiment of the housing structure of the wearable device of the present invention;

[0028] Figure 2 for Figure 1 A CC-direction sectional view of the housing structure of a wearable device in the image;

[0029] Figure 3 for Figure 1 A magnified view of section B in the image;

[0030] Figure 4 for Figure 1 A schematic diagram of the housing structure of a wearable device in the snap-fit ​​state;

[0031] Figure 5 for Figure 4 EE-directed sectional view of the housing structure of the wearable device in the image;

[0032] Figure 6 for Figure 4 A magnified view of point F in the image;

[0033] Figure 7 for Figure 1 A schematic diagram of the arc-shaped limiting component in the shell structure of a wearable device;

[0034] Figure 8 for Figure 7 A top view of the arc-shaped limiting component in the middle;

[0035] Figure 9 for Figure 8 Side view of the arc-shaped limiting component in the middle;

[0036] Figure 10 for Figure 1 A schematic diagram of the vibration damping component in the housing structure of a wearable device.

[0037] Figure 11 for Figure 10 A top view of the vibration damping components in the middle;

[0038] Figure 12 for Figure 7 The arc-shaped limiting component and Figure 10 A schematic diagram showing the state of the vibration damper when it is located inside the housing;

[0039] 100. Outer shell; 110. Clearance clearance;

[0040] 200, Inner shell; 210, Engaging groove; 220, Guide surface; 230, Front cover; 240, Rear cover;

[0041] 300. Arc-shaped limiting component; 310. Fastening component; 312. Locking key; 320. Insulating bracket;

[0042] 400. Vibration damping component; 410. Vibration damping bracket; 420. Elastic buffer component. Detailed Implementation

[0043] The following description, with reference to schematic diagrams, illustrates a housing structure for a wearable device according to the present invention, which represents a preferred embodiment. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0044] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0045] The following is in conjunction with the instruction manual appendix. Figures 1 to 12 The housing structure of a wearable device according to a first aspect embodiment of the present invention will be described.

[0046] In one embodiment, such as Figure 1 and Figure 7 As shown, the housing structure of the wearable device in this embodiment includes an outer shell 100, an inner shell 200, and an arc-shaped limiting member 300.

[0047] The outer shell 100 has a receiving cavity, and the inner shell 200 is installed in the receiving cavity by a snap-fit ​​mechanism. The electronic components of the wearable device are housed in the inner shell 200. Once the inner shell 200 is fixed in the outer shell 100, the electronic components are secured.

[0048] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the inner shell 200 has a locking groove 210 on its outer peripheral surface, and an arc-shaped limiting member 300 is disposed in the outer shell 100. The arc-shaped limiting member 300 has a plurality of locking keys 312 spaced apart. There is a clearance gap 110 between the locking keys 312 and the groove wall of the receiving cavity. During the process of the outer shell 100 and the inner shell 200 being fastened together, the clearance gap 110 allows the locking keys 312 to move, ensuring that the fastening process is carried out smoothly. When the fastening is in place, the locking keys 312 will reset and lock into the locking groove 210, thereby fixing the inner shell 200 in the receiving cavity.

[0049] Preferably, the material used to make the snap bond 312 has a Rockwell hardness range of 30-65 and an elastic modulus range of 180-220 GPa, so that the snap bond 312 has suitable hardness and elasticity.

[0050] In use, the inner shell 200 is pressed into the receiving cavity of the outer shell 100. The shell of the inner shell 200 presses against the locking key 312. Due to the existence of the clearance gap 110, the locking key 312 moves into the clearance gap 110. As the inner shell 200 moves into the outer shell 100, when the locking groove 210 on the inner shell 200 moves to the position corresponding to the locking key 312, the locking key 312 will reset and lock into the locking groove 210, thereby fixing the inner shell 200 in the receiving cavity. Because the locking key 312 has relatively high hardness, it undergoes displacement and rapid reset during the fastening process. Therefore, when it is locked into the locking groove 210, the resulting fastening feel is strong, it is not prone to wear, has a long service life, and provides a more secure fixation for the inner shell 200.

[0051] In one embodiment, such as Figure 2 and Figure 5 As shown, the locking key 312 is a straight segment that can engage with the locking groove 210. In other embodiments, the locking key 312 can also be an arc-shaped segment. Of course, the curvature of the arc-shaped segment needs to ensure that it can engage with the locking groove 210 to ensure the inner shell 200 is fixed. Compared with the arc-shaped segment, when the straight segment is used as the locking key 312, the interference between it and the locking groove 210 is greater, and it is not easy for it to leave the locking groove 210, thus fixing the inner shell 200 more firmly and making it less likely for the inner shell 200 to detach from the outer shell 100.

[0052] In one embodiment, such as Figure 7 , Figure 8 and Figure 9As shown, the arc-shaped limiting member 300 includes an integrally injection-molded fastening member 310 and an insulating bracket 320. The insulating bracket 320 is used to support the fastening member 310 in the receiving cavity. Specifically, the fastening member 310 is also arc-shaped, and is an arc-shaped steel ring made of spring steel. The diameter of the steel wire forming the steel ring can be selected according to specific needs. In some embodiments, the diameter of the steel wire forming the steel ring can be 0.8 mm or 1 mm. The size of the fastening member engaging with the fastening groove 210 can be 0.15 mm, that is, during the fastening process, the interference between the fastening member 310 and the inner shell 200 is 0.15 mm. The insulating bracket 320 can be made of polycarbonate (i.e., PC plastic) or other insulating materials. Of course, the above interference amount and the diameter of the steel wire forming the steel ring are only for reference. In actual use, they can be reasonably adjusted according to needs.

[0053] A portion of the fastening element 310 is exposed to serve as a locking key 312. When the locking key 312 is a straight segment, the portion of the steel ring needs to be trimmed into a straight segment to form the locking key 312. The fastening element 310 can be made of 65# steel or 70# steel, or other spring steel that meets the requirements for hardness and elasticity. Furthermore, an insulating bracket 320 made of PC plastic material can provide insulation between the outer shell 100 and the inner shell 200. It should be noted that an annular groove is provided on the inner wall of the outer shell 100 to accommodate the arc-shaped limiting element 300. The annular groove can limit the arc-shaped limiting element 300 in the axial direction along the outer shell 100, and the arc-shaped limiting element 300 can rotate in the annular groove in the circumferential direction.

[0054] In other embodiments, the fastening element 310 in the arc-shaped limiting element 300 may also be made of a high-hardness, high-wear-resistant material such as polyoxymethylene resin (also known as acetal resin).

[0055] Preferably, in one embodiment, the insulating support 320 includes a plurality of spaced-apart arc-shaped segments that wrap around the outside of the fastening member 310. The portion of the fastening member 310 located between two adjacent arc-shaped segments constitutes the locking key 312. The insulating support 320 is disposed in the housing 100 and directly contacts the groove wall of the receiving cavity, thereby supporting the fastening member 310 as a support structure. Since the insulating support 320 wraps around the outside of the fastening member 310, there is a space between the locking key 312 and the groove wall of the receiving cavity, thereby forming the clearance gap 110.

[0056] In one embodiment, to facilitate the processing of the engagement groove 210 and its fastening, the engagement groove 210 is an annular groove, so that the inner shell 200 does not need to be aligned with the engagement key 312 during the fastening process. In other embodiments, multiple arc-shaped grooves can be provided at intervals on the outer peripheral surface of the inner shell 200 as engagement grooves 210, with the interval between the arc-shaped grooves being the same as the interval between the engagement keys 312. During fastening, it is necessary to ensure that the arc-shaped grooves correspond one-to-one with the engagement keys 312.

[0057] Preferably, to reduce engagement resistance and facilitate the separation of the outer shell 100 and the inner shell 200, the engagement groove 210 has a guide surface for guiding the engagement key 312 into the engagement groove 210. Specifically, the guide surface can be an inclined surface. In other embodiments, the guide surface can also be an arc-shaped surface.

[0058] In one embodiment, such as Figure 3 As shown, to facilitate the insertion of the inner shell 200, a guide surface 220 is provided at the end of the inner shell 200. The guide surface 220 is an inclined surface, which is formed by chamfering at the end of the inner shell 200. Of course, the guide surface 220 can also be an arc-shaped surface, which is formed by rounding the corners at the end of the inner shell 200.

[0059] In one embodiment, to avoid noise generated inside the wearable device due to vibration, such as Figure 10 , Figure 11 and Figure 12 As shown, the housing structure of the wearable device also includes a vibration damping element 400, which is disposed between the outer shell 100 and the inner shell 200. The vibration damping element 400 is used to block the vibration of the inner shell 200 from being transmitted to the outer shell 100. When the inner shell 200 vibrates, the outer shell 100 will not shake due to the presence of the vibration damping element 400, thereby preventing noise generated by friction when the outer shell 100 shakes and reducing the generation of noise.

[0060] Furthermore, the vibration damping member 400 includes a vibration damping bracket 410 and an elastic buffer member 420 fixed together. The vibration damping bracket 410 is fixed in the receiving cavity and serves as the carrier of the elastic buffer member 420.

[0061] To effectively limit the vibration of the inner shell 200, preferably, the elastic buffer 420 and the inner shell 200 are interference-fitted.

[0062] In one embodiment, to facilitate the installation of the vibration damper 400, there are two vibration dampers 400. Each vibration damper 400 includes an arc-shaped vibration damping bracket 410 and a plurality of elastic buffers 420 fixed at intervals on the vibration damping bracket 410. The central angle of each vibration damping bracket 410 is less than 180 degrees, thereby creating a gap between adjacent ends of two vibration damping brackets 410 to facilitate the installation of the vibration damping bracket 410. The vibration damping bracket 410 is fixed to the inner sidewall of the housing 100 by dispensing adhesive. In other embodiments, the vibration damper 400 may also include a plurality of linear vibration damping brackets 410 and a plurality of elastic buffers 420 fixed one-to-one on the linear vibration damping brackets 410. The linear vibration damping brackets 410 are also fixed to the groove wall of the receiving cavity by dispensing adhesive.

[0063] Preferably, in one embodiment, such as Figure 12 As shown, the number of locking keys 312 is the same as the number of elastic buffers 420, and the locking keys 312 and the elastic buffers 420 are arranged at intervals along the axial direction of the outer shell 100 and are in the same position in the circumferential direction. Specifically, in this embodiment, there are four locking keys 312 and four elastic buffers 420, that is, two elastic buffers 420 are fixed on each vibration damping bracket 410. Assuming that the axis of the outer shell 100 extends in the vertical direction, the elastic buffers 420 are located directly above the fastening members 310, which is beneficial for buffering the vibration of the inner shell 200 at the fastening position.

[0064] Preferably, in one embodiment, the vibration damping bracket 410 and the elastic buffer 420 are fixed together by two-color injection molding, which allows them to be more firmly fixed together. In other embodiments, they can also be fixed together by adhesive.

[0065] Furthermore, in one embodiment, the elastic buffer 420 is made of thermoplastic polyurethane elastomer, i.e., TPU, which, due to its good elasticity and toughness, can effectively buffer the vibration of the inner shell 200. In other embodiments, the elastic buffer 420 may also be made of rubber.

[0066] Preferably, the vibration damping bracket 410 is made of polycarbonate.

[0067] In one embodiment, the outer shell 100 is made of metal. To facilitate the fixation of the elastic buffer 420, the vibration damping member 400 is fixed together by the elastic buffer 420 and the vibration damping bracket 410 using a two-color injection molding process. The vibration damping bracket 410 is made of polycarbonate. The outer shell 100 and the vibration damping bracket 410 are then fixed together by adhesive dispensing. In this case, the vibration damping bracket 410 acts as a carrier for the elastic buffer 420. In other embodiments, when the outer shell 100 is made of plastic, only the elastic buffer 420 is provided, without the vibration damping bracket 410; the outer shell 100 and the elastic buffer 420 are directly injection molded using a two-color injection molding process.

[0068] In one embodiment, the inner shell 200 includes a shell body, a front cover 230, and a rear cover 240, which together form a closed chamber to accommodate electronic components.

[0069] When the inner shell 200 is inserted into the outer shell 100, the rear cover 240 of the inner shell 200 is first pressed towards the arc-shaped limiting member 300. Due to the presence of the guide surface, the inner shell 200 can easily open the locking key 312, allowing the locking key 312 to move to the clearance gap 110. As the inner shell 200 is gradually pushed in, when the locking groove 210 on the inner shell 200 moves to the position corresponding to the locking key 312, the locking key 312 will reset and lock into the locking groove 210, thereby fixing the inner shell 200 in the receiving cavity.

[0070] When it is necessary to separate the outer shell 100 and the inner shell 200, the front cover 230 of the inner shell 200 is pressed in the opposite direction, and the locking key 312 will be gradually removed from the locking groove 210 until the inner shell 200 is disengaged from the receiving cavity.

[0071] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A housing structure of a wearable device, characterized by, The utility model relates to a shell, have the accommodation cavity, the inner shell is installed in the accommodation cavity, the outer peripheral surface of the inner shell is provided with the engagement slot, the arc limit piece is provided in the shell, the arc limit piece has a plurality of interval arrangement engagement key, the engagement key has the clearance with the inner wall surface of the shell, the clearance is used for the displacement of the engagement key in the process of buckling, the engagement key is used for the engagement in the engagement slot to fix the inner shell in the accommodation cavity, still include the damping member, the damping member is arranged between the shell and the inner shell, and the damping member is used for blocking the vibration transmission of the inner shell to the shell. The engagement key is a straight line segment, and the straight line segment can be engaged in the engagement slot. The arc limit piece includes an integrally injection molded buckling piece and an insulating support, and the insulating support is used to support the buckling piece in the accommodation cavity. The insulating support includes a plurality of arc-shaped segments arranged at intervals, and the engagement key is formed by a portion of the buckling piece between adjacent two arc-shaped segments. The engagement slot is an annular slot.

2. The housing structure of a wearable device according to claim 1, wherein, The engagement slot has a guide surface for guiding the engagement of the engagement key.

3. The housing structure of a wearable device according to claim 1, wherein, An end portion of the inner shell is provided with a guide surface.

4. The housing structure of a wearable device according to claim 3, wherein, The damping member includes a damping support and an elastic buffer fixed together, and the damping support is fixed in the accommodation cavity.

5. The housing structure of the wearable device according to any one of claims 1 to 4, wherein, The elastic buffer and the inner shell are in interference fit.

6. The housing structure of the wearable device according to any one of claims 1 to 4, wherein, The damping member has two, and each damping member includes an arc-shaped damping support and a plurality of elastic buffers fixed on the damping support at intervals.

7. The housing structure of the wearable device according to any one of claims 1 to 4, wherein, The number of the engagement keys is the same as that of the elastic buffers, and the engagement keys and the elastic buffers are arranged at intervals in the axial direction of the shell and have the same circumferential position.

8. The housing structure of a wearable device according to claim 1, wherein, The damping support and the elastic buffer are fixed together by two-color injection molding.

9. The housing structure of a wearable device according to claim 8, wherein, The elastic buffer is made of thermoplastic polyurethane elastomer material.

10. The housing structure of a wearable device according to claim 8, wherein, The damping support is made of polycarbonate material.

11. The housing structure of a wearable device according to claim 8, wherein, The shell is made of metal material, and the damping support and the shell are fixedly connected by means of dispensing.

12. The housing structure of a wearable device according to claim 8, wherein, ​ 13. The housing structure of a wearable device according to claim 12, wherein, ​ 14. The housing structure of a wearable device according to claim 12, wherein, ​ 15. The housing structure of the wearable device according to claim 12, wherein, ​

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