Waterproof fixing device and applicable electronic device thereof

Abstract

The invention provides a waterproof fixing device and an applicable electronic device thereof. The waterproof fixing device comprises a cable, a first plug piece and a second plug piece, the first plug piece is arranged on the outer surface of the cable in a sleeving mode, the first plug piece and the second plug piece are matched and jointly arranged at the through hole of the shell in a close fit mode, and therefore the cable can be fixed to the through hole of the shell, and the waterproof function is achieved. The waterproof fixing device provided by the invention has the advantages of fewer components and simple assembly structure, can reduce the assembly time, and can enhance the sealing effect of the cable at the through hole of the shell so as to improve the waterproof efficiency.

Description

Technical Field

[0001] The invention relates to the field of fixing devices, in particular to a waterproof fixing device and an electronic device applicable thereto. Background Art

[0002] For all kinds of electronic devices that need to operate in outdoor environments, overall waterproof performance is a key design indicator and practical requirement. Among them, the cables of electronic devices pass through the through holes of their shells, leaving a gap between the cables and the through holes, which easily causes external moisture to enter the shell. Therefore, waterproofing and fixing the cables at the through holes of the shell are very important.

[0003] Currently, in order to achieve the waterproof requirement of the cable at the aforementioned position, many electronic devices adopt methods such as glue dispensing or glue dispensing combined with SR tail card (Strain relief) design, or achieve it through a more complex mechanism design with a large number of parts.

[0004] For example, a cable with an SR tail card structure can be combined with a special shell structure to achieve the effect of fixing the cable and waterproofing. However, this design is not very versatile. This design is only applicable to upper and lower split shell structures and cannot be applied to shell designs with a single circular through hole. In addition, the through holes of the upper shell and the lower shell must have a snap-fit ​​structure design so that it can be snapped with the cable with the SR tail card structure. This will make the overall structure relatively complicated and significantly increase the design cost.

[0005] In addition, some other electronic devices use cable glands to fix the cables to the through holes of the housing and achieve waterproof effects. Although cable glands can provide excellent sealing and protection performance, the structure of cable glands is relatively complex, usually including multiple seals, stress relief components, and waterproof and dustproof materials. Therefore, the number of components required for installation is relatively large, which not only makes the installation process more cumbersome, but also may increase construction time and labor costs. In addition, high-quality cable glands usually use durable materials to achieve good corrosion resistance and durability, but also increase costs.

[0006] Therefore, it is necessary to develop a waterproof fixing device and an applicable electronic device to solve the problems and defects faced by the prior art. Summary of the invention

[0007] The object of the present invention is to provide a waterproof fixing device and an electronic device applicable thereto. The waterproof fixing device comprises a cable, a first plug and a second plug, wherein the first plug is sleeved on the outer surface of the cable, and the first plug and the second plug are assembled and tightly arranged together at the through hole of the shell, so that the cable can be fixed at the through hole of the shell and realize the waterproof function. The waterproof fixing device of the present invention has fewer components and a simple assembly structure, which can reduce the assembly time, and can enhance the sealing effect of the cable at the through hole of the shell to improve the waterproof performance. In addition, the waterproof fixing device of the present invention can be applied to different types of through holes, for example, the through hole can have a chamfer or a countersunk hole, etc. At the same time, the waterproof fixing device of the present invention has a high adaptability to the thickness of the shell wall and a wide range of applications.

[0008] In order to achieve the above-mentioned purpose, the present invention provides a waterproof fixing device, including a cable, a first plug and a second plug. The cable includes an outer surface. The first plug sleeve includes a fixing kit and a flexible kit. The fixing kit includes an inner ring portion, an outer ring portion and a accommodating space, wherein the inner ring portion includes a first channel, the first channel structure is arranged on a part of the cable, the outer ring portion is connected to and surrounds the inner ring portion, and the accommodating space is located between the inner ring portion and the outer ring portion. The flexible kit is assembled with the fixing kit, and at least part of the flexible kit abuts against the outer surface of the cable. The second plug includes a column portion, wherein the column portion includes a tube wall, the tube wall is assembled and arranged in the accommodating space of the first plug, and the inner surface and outer surface of the tube wall of the column portion abut against the outer surface of the inner ring portion and the inner surface of the outer ring portion respectively.

[0009] To achieve the above-mentioned purpose, the present invention provides an electronic device, including a shell and a waterproof fixing device. The shell includes a wall surface, and the wall surface has a through hole. The waterproof fixing device is assembled in the shell and includes a cable, a first plug and a second plug. The cable includes an outer surface. The first plug includes a fixing kit and a flexible kit. The fixing kit includes an inner ring portion, an outer ring portion and a accommodating space, wherein the inner ring portion includes a first channel, the first channel is framed on a part of the cable, the outer ring portion is connected to and surrounds the inner ring portion, and the accommodating space is located between the inner ring portion and the outer ring portion. The flexible kit is assembled with the fixing kit, and at least part of the flexible kit abuts against the outer surface of the cable. The second plug includes a column portion, wherein the column portion includes a tube wall, the tube wall is assembled and arranged in the accommodating space of the first plug, and the inner surface and outer surface of the tube wall of the column portion abut against the outer surface of the inner ring portion and the inner surface of the outer ring portion respectively. Wherein, the cable of the waterproof fixing device passes through the through hole of the wall surface of the shell, and the first plug is tightly fitted in the through hole of the wall surface of the shell.

[0010] The beneficial effect of the present invention is that the present invention provides a waterproof fixing device and an electronic device applicable thereto. The waterproof fixing device comprises a cable, a first plug and a second plug, wherein the first plug is sleeved on the outer surface of the cable, and the first plug and the second plug are assembled and tightly arranged together at the through hole of the housing, so that the cable can be fixed at the through hole of the housing and achieve a waterproof function. The waterproof fixing device of the present invention has fewer components, a simple assembly structure, can reduce assembly time, and can enhance the sealing effect of the cable at the through hole of the housing to improve the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an electronic device and a waterproof fixing device thereof according to a first embodiment of the present invention.

[0012] Figure 2A It is a schematic structural diagram of the first plugging member of the waterproof fixing device of the first embodiment of the present invention.

[0013] Figure 2B It is a schematic structural diagram of a fixing kit of a first plugging member of a waterproof fixing device according to a first embodiment of the present invention.

[0014] Figure 2C for Figure 2B The structural cross-sectional view of the fixing kit shown in FIG. 1 is a cross-sectional view of the fixing kit at section AA'.

[0015] Figure 2D It is a schematic structural diagram of a flexible set of the first plugging member of the waterproof fixing device according to the first embodiment of the present invention.

[0016] Figure 2E It is a schematic structural diagram of the second plugging member of the waterproof fixing device of the first embodiment of the present invention.

[0017] Figure 2F for Figure 2E The structural cross-sectional view of the second plug at the BB' section is shown.

[0018] Figure 2G It is a schematic diagram of assembling the waterproof fixing device for an electronic device according to the first embodiment of the present invention.

[0019] Figure 2H It is an assembly cross-sectional view of the waterproof fixing device for an electronic device according to the first embodiment of the present invention.

[0020] Fig.2I It is a transverse cross-sectional view of a waterproof fixing device for an electronic device according to a first embodiment of the present invention.

[0021] Figure 3A It is a structural cross-sectional view of an electronic device and a waterproof fixing device thereof according to a second embodiment of the present invention, wherein cables are omitted and not shown.

[0022] Figure 3B FIG. 4 is a transverse cross-sectional view of an electronic device according to a second embodiment of the present invention.

[0023] Figure 4A It is a structural schematic diagram of an electronic device and a waterproof fixing device thereof according to a third embodiment of the present invention.

[0024] Figure 4B FIG. 4 is a transverse cross-sectional view of an electronic device according to a third embodiment of the present invention.

[0025] Figure 5A It is a structural schematic diagram of an electronic device and a waterproof fixing device thereof according to a fourth embodiment of the present invention.

[0026] Figure 5B It is a transverse cross-sectional view of the assembly of the waterproof fixing device for an electronic device according to the fourth embodiment of the present invention.

[0027] Figure 5C FIG. 4 is a transverse cross-sectional view of an electronic device according to a fourth embodiment of the present invention.

[0028] Fig. 6A It is a structural schematic diagram of a fixing kit of a first plugging member of a waterproof fixing device for an electronic device according to a fifth embodiment of the present invention.

[0029] Figure 6B FIG. 5 is a schematic structural diagram of an electronic device and a waterproof fixing device thereof according to a fifth embodiment of the present invention.

[0030] Figure 6C FIG. 5 is a transverse cross-sectional view of an electronic device according to a fifth embodiment of the present invention.

[0031] Fig. 7A It is a transverse cross-sectional view of the assembly of the waterproof fixing device for an electronic device according to the sixth embodiment of the present invention.

[0032] Figure 7B FIG. 4 is a transverse cross-sectional view of an electronic device according to a sixth embodiment of the present invention.

[0033] Fig. 8A FIG. 4 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present invention.

[0034] Figure 8B FIG. 4 is a transverse cross-sectional view of an electronic device according to a seventh embodiment of the present invention.

[0035] The reference numerals are as follows:

[0036] 1: Shell

[0037] 11: Wall

[0038] 12: Through hole

[0039] 13: Inner wall

[0040] 14: Second limit assembly

[0041] 100: Electronic devices

[0042] 2: Waterproof fixture

[0043] 3: Cables

[0044] 31: Outer surface

[0045] 4: First plug

[0046] 41: Fixed Kit

[0047] 411: Gap

[0048] 412: Limiting structure

[0049] 413: Protrusion

[0050] 414: Groove

[0051] 415: First limit assembly

[0052] 42: Flex Kit

[0053] 43: Inner ring

[0054] 431: External surface

[0055] 432: Inner surface

[0056] 433: First channel

[0057] 434: End

[0058] 44: Outer ring

[0059] 441: External surface

[0060] 442: Inner surface

[0061] 443: Internal thread

[0062] 45: Accommodation space

[0063] 451: Connection

[0064] 46: First Waterproof Department

[0065] 47: Second waterproof part

[0066] 471: External surface

[0067] 472: Inner surface

[0068] 473: Hollow

[0069] 48: The third waterproof part

[0070] 49: Waterproof ring

[0071] 5: Second plug

[0072] 51: Pipeline

[0073] 52: Tube wall

[0074] 521: External surface

[0075] 522: Inner surface

[0076] 523: Second channel

[0077] 524: First Opening

[0078] 525: Second opening

[0079] 526: External thread

[0080] 53: Convex top

[0081] 531: Extension

[0082] 532: Locking element

[0083] D1: First outer diameter

[0084] D2: Second outer diameter

[0085] R1: First inner diameter

[0086] R2: Second inner diameter

[0087] L1: first length

[0088] L2: Second length

[0089] P1: First arc part

[0090] P2: Second arc part

[0091] P3: Connection structure DETAILED DESCRIPTION

[0092] Some typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different ways, all of which do not depart from the scope of the present invention, and the description and drawings therein are essentially used for illustrative purposes rather than for limiting the present invention. For example, if the following content of the present disclosure describes that a first feature is set on or above a second feature, it means that it includes an embodiment in which the first feature set is in direct contact with the second feature, and also includes an embodiment in which the additional feature can be set between the first feature and the second feature, so that the first feature and the second feature may not be in direct contact. In addition, different embodiments of the present disclosure may use repeated reference symbols and / or marks. These repetitions are for the purpose of simplification and clarity, and are not used to limit the relationship between the various embodiments and / or the appearance structure. Furthermore, in order to facilitate the description of the relationship between a component or feature component and another (plural) component or (plural) feature component in the drawings, spatially related terms such as "upper", "lower", "top", "bottom", "front", "back" and similar terms may be used. In addition to the orientations shown in the drawings, spatially related terms are used to cover different orientations of the device in use or operation. The device may also be positioned otherwise (e.g., rotated 90 degrees or located in other orientations), and the description of the spatially related terms used may be interpreted accordingly. In addition, when a component is referred to as "connected to" or "coupled to" another component, it may be directly connected to or coupled to another component, or there may be an intervening component. In addition, it is understood that although the terms "first", "second", "third", etc. may be used in the claims to describe different components, these components should not be limited by these terms, and the components described accordingly in the embodiments are represented by different component symbols. These terms are to distinguish different components. For example: the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component without departing from the scope of the embodiments.

[0093] See also Figure 1 as well as FIG. 2A to FIG. 2I. The electronic device 100 of the present invention has a waterproof function, and includes a shell 1 and a waterproof fixing device 2. The shell 1 includes a wall 11, and the wall 11 has a through hole 12. The waterproof fixing device 2 is assembled with the shell 1, and includes a cable 3, a first plug 4 and a second plug 5. The cable 3 includes an outer surface 31. The first plug 4 is sleeved on the outer surface 31 of the cable 3, and includes a fixing kit 41 and a flexible kit 42. The fixing kit 41 includes an inner ring portion 43, an outer ring portion 44 and an accommodating space 45, wherein the inner ring portion 43 includes a first channel 433, the first channel 433 is structured on a part of the cable 3, the outer ring portion 44 is connected to and surrounds the inner ring portion 43, and the accommodating space 45 is located between the inner ring portion 43 and the outer ring portion 44. The flexible kit 42 is assembled with the fixing kit 41, and at least a portion of the flexible kit 42 abuts against the outer surface 31 of the cable 3. The second plug 5 includes a column portion 51, wherein the column portion 51 includes a tube wall 52, and the tube wall 52 is assembled and arranged in the accommodating space 45 of the first plug 4, and the inner surface 522 and the outer surface 521 of the tube wall 52 of the column portion 51 respectively abut against the outer surface 431 of the inner ring portion 43 and the inner surface 442 of the outer ring portion 44. The cable 3 of the waterproof fixing device 2 passes through the through hole 12 of the wall surface 11 of the housing 1, and the first plug 4 is tightly arranged in the through hole 12 of the wall surface 11 of the housing 1, so that the part of the cable 3 can be fixed at the through hole 12 of the wall surface 11 of the housing 1 with the assistance of the first plug 4 and the second plug 5 and realize the waterproof function.

[0094] In some embodiments, the fixing kit 41 of the first plug 4 includes a connecting portion 451 connected between the inner ring portion 43 and the outer ring portion 44, and the inner ring portion 43, the outer ring portion 44 and the connecting portion 451 together define a receiving space 45, so that the receiving space 45 is structured to form an annular groove.

[0095] Please refer to Figure 2A , Figure 2G , Figure 2H and Fig.2I . In this embodiment, the flexible kit 42 is assembled with the inner ring portion 43 and the outer ring portion 44 of the fixed kit 41. The flexible kit 42 includes at least one first waterproof portion 46, which is arranged around the inner surface 432 of the inner ring portion 43 and is structured on the outer surface 31 of the top cable 3, thereby fixing the cable 3 and achieving a waterproof function. The first waterproof portion 46 is preferably an annular structure, but is not limited to this. For example, in some embodiments, the first waterproof portion 46 may be a sheet structure, which is not limited by the present invention. In some embodiments, the number of the first waterproof portions 46 is two. It should be emphasized that the number of the first waterproof portions 46 is not limited to the aforementioned embodiments, and can be adjusted according to actual needs.

[0096] In some embodiments, the flexible sleeve 42 further includes a second waterproof portion 47, which is disposed at an end 434 of the inner ring portion 43 and extends toward an axial direction of the first channel 433, wherein the second waterproof portion 47 has a hollow portion 473, which is connected to the first channel 433 of the inner ring portion 43 and is constructed at the portion where the cable 3 is accommodated. The inner surface 472 and the outer surface 471 of the second waterproof portion 47 are respectively pressed against the outer surface 31 of the cable 3 and the inner surface 522 of the tube wall 52 of the tube column portion 51. When the first plug 4 and the second plug 5 are combined, the second waterproof portion 47 is sandwiched between the outer surface 31 of the cable 3 and the inner surface 522 of the tube wall 52 of the tube column portion 51, and the second waterproof portion 47 is deformed to tightly seal the gap between the outer surface 31 of the cable 3 and the inner surface 522 of the tube wall 52 of the tube column portion 51, thereby improving the waterproof performance. The second waterproof portion 47 is preferably an annular structure, but is not limited thereto. In some embodiments, the first waterproof portion 46 and the second waterproof portion 47 are separate components. Alternatively, in other embodiments, the first waterproof portion 46 and the second waterproof portion 47 are connected and the structure is an integrally formed single-piece structure.

[0097] In some embodiments, the flexible sleeve 42 further includes a waterproof ring 49, which is arranged around the outer surface 441 of the outer ring portion 44 and is structured to abut the hole wall 13 of the through hole 12 of the shell 1. The waterproof ring 49 is sandwiched between the fixing sleeve 41 of the first plug 4 and the hole wall 13 of the through hole 12 of the shell 1, so that the first plug 4 and the hole wall 13 of the through hole 12 of the shell 1 can be sealed, so that the cable 3 can be firmly fixed at the through hole 12 of the shell 1 and achieve a waterproof function. In some embodiments, the first waterproof portion 46, the second waterproof portion 47 and the waterproof ring 49 are separate components. Alternatively, in other embodiments, the first waterproof portion 46, the second waterproof portion 47 and the waterproof ring 49 are connected and structured as an integrally formed single-piece structure.

[0098] In some embodiments, the fixing kit 41 of the first plug 4 includes a first arc-shaped part P1 and a second arc-shaped part P2, the first arc-shaped part P1 and the second arc-shaped part P2 are independent and separate parts, and there is a gap between the first arc-shaped part P1 and the second arc-shaped part P2, wherein part of the inner ring part 43, part of the outer ring part 44 and part of the accommodation space 45 constitute the first arc-shaped part P1, and another part of the inner ring part 43, another part of the outer ring part 44 and another part of the accommodation space 45 constitute the second arc-shaped part P2. The flexible kit 42 has a third waterproof part 48, which is arranged in the gap 411 and abuts against the outer surface 31 of the cable 3, thereby improving the waterproof performance. In this embodiment, the first arc-shaped part P1 and the second arc-shaped part P2 are made of metal material, plastic material or elastic material, but are not limited thereto.

[0099] In some embodiments, the third waterproof portion 48 is used as a connecting structure to connect at least one first waterproof portion 46, the second waterproof portion 47 and the waterproof ring 49, thereby forming an integrally formed single-piece structure. In some embodiments, the material of the flexible kit 42 includes silicone, rubber or thermoplastic polyurethane, etc., but is not limited thereto. In some embodiments, the third waterproof portion 48 can also abut against the outer surface 31 of the cable 3, thereby improving the waterproof effect.

[0100] In this embodiment, the fixing sleeve 41 of the first plug 4 includes a limiting structure 412, which is disposed on the outer surface 441 of the outer ring portion 44. The limiting structure 412 includes two protrusions 413 and a groove 414, wherein the two protrusions 413 protrude outward from the outer surface 441 of the outer ring portion 44 and are disposed around the outer ring portion 44, and the groove 414 is defined by the two protrusions 413 and the outer surface 441. In some embodiments, the waterproof ring 49 of the flexible sleeve 42 is disposed in the groove 414 of the limiting structure 412 and is located between the two protrusions 413. When the first plug 4 is combined with the second plug 5 and installed at the through hole 12 of the wall surface 11 of the housing 1, the two protrusions 413 of the limiting structure 412 of the first plug 4 tightly clamp the wall surface 11 of the housing 1 at the periphery of the through hole 12, so that the first plug 4 can be fixed at the through hole 12 of the wall surface 11 of the housing 1. At this time, the waterproof ring 49 of the flexible sleeve 42 is sandwiched between the hole wall 13 of the through hole 12 of the housing 1 and the fixing sleeve 41 of the first plug 4, thereby achieving the effect of fixing and sealing. In some embodiments, the width of the groove 414 is substantially equal to the thickness of the wall 11 of the housing 1 at the periphery of the through hole 12. Since the width of the groove 414 can be adjusted according to the thickness of the wall 11 of the housing 1, it can be compatible with housings 1 with different wall thicknesses, thereby increasing the breadth of applications.

[0101] In some embodiments, the limiting structure 412 of the fixing kit 41 includes at least one first limiting component 415, which is adjacent to one of the two protrusions 413 and extends toward the groove 414. The housing 1 includes at least one second limiting component 14, which is disposed on the hole wall 13 of the through hole 12 of the wall surface 11 and corresponds to the first limiting component 415. The first limiting component 415 of the fixing kit 41 is configured to engage with the second limiting component 14 of the housing 1, so that the first plug 4 is positioned and fixed relative to the housing 1. In some embodiments, the first limiting component 415 is a protrusion, and the second limiting component 14 is a groove. Alternatively, the first limiting component 415 is a groove, and the second limiting component 14 is a protrusion.

[0102] In some embodiments, the outer ring portion 44 and the inner ring portion 43 of the first plug 4 have a first length L1 and a second length L2 in the axial direction parallel to the first channel 433 , respectively, wherein the first length L1 is equal to the second length L2 , but not limited thereto.

[0103] Please refer to Figure 2A , Figure 2B , Figure 2G , Figure 2H and Fig.2I In some embodiments, the second plug 5 includes a convex top portion 53, which is connected to one end of the pipe column portion 51. When the second plug 5 is assembled with the first plug 4, the convex top portion 53 of the second plug 5 fits one end of the outer ring portion 44 of the fixing kit 41, thereby improving the sealing performance. The pipe column portion 51 of the second plug 5 includes a second channel 523, which runs through the pipe column portion 51 and is structured on the inner ring portion 43 accommodating the fixing kit 41.

[0104] In some embodiments, the fixing kit 41 of the first plug 4 includes a connecting portion 451, which is connected between the inner ring portion 43 and the outer ring portion 44, wherein the outer surface 431 of the inner ring portion 43 of the first plug 4 has a first outer diameter D1 at one end adjacent to the connecting portion 451, and the outer surface 431 of the inner ring portion 43 has a second outer diameter D2 at one end away from the connecting portion 451, wherein the first outer diameter D1 is greater than the second outer diameter D2. The inner ring portion 43 is preferably an annular conical structure, but not limited thereto. The second channel 523 of the second plug 5 has a first opening 524 and a second opening 525, the first opening 524 and the second opening 525 are located at two opposite ends of the second channel 523, the first opening 524 is away from the convex top 53 and has a first inner diameter R1, the second opening 525 is adjacent to the convex top 53 and has a second inner diameter R2, wherein the first inner diameter R1 is greater than the second inner diameter R2. The column portion 51 is preferably an annular conical structure, but not limited thereto. When the first plugging member 4 and the second plugging member 5 are assembled, the inner ring portion 43 and the tube column portion 51 are both annular conical structures and can be assembled with each other, so that the first plugging member 4 and the second plugging member 5 can be tightly combined. In some embodiments, the first inner diameter R1 is substantially equal to the first outer diameter D1, and the second inner diameter R2 is substantially equal to the second outer diameter D2. Therefore, the outer surface 431 of the inner ring portion 43 of the first plugging member 4 can be tightly fitted with the inner surface 522 of the tube wall 52 of the tube column portion 51 of the second plugging member 5, thereby improving the waterproof effect.

[0105] In some embodiments, an external thread 526 is provided on the outer surface 521 of the tube wall 52 of the tube column portion 51 of the second plug 5, and an internal thread 443 is provided on the inner surface 442 of the outer ring portion 44 of the fixing kit 41 of the first plug 4, wherein the external thread 526 and the internal thread 443 are arranged correspondingly and are screwed together, so that the first plug 4 and the second plug 5 can be tightly combined to improve the waterproof performance.

[0106] In some embodiments, the first plug 4 is formed by a two-shot injection molding process of a fixed sleeve 41 and a flexible sleeve 42. In some embodiments, the through hole 12 of the wall surface 1 of the housing 1 is preferably a circular through hole, but not limited thereto.

[0107] See also Figure 3A and Figure 3B . In this embodiment, the structure and function of the electronic device and the fixed waterproof device thereof are similar to those of the electronic device and the fixed waterproof device thereof of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and the fixed waterproof device thereof of the first embodiment, the flexible kit 42 of the fixed waterproof device of this embodiment includes a single first waterproof portion 46 and a second waterproof portion 47, wherein the first waterproof portion 46 completely covers the inner surface 432 of the inner ring portion 43, and the first waterproof portion 46 and the second waterproof portion 47 are connected to form a single-piece structure. Through the design of the flexible kit 42 of this embodiment, the first plug 4 can contact the outer surface 31 of the cable 3 with a larger area, thereby improving the waterproof performance. In other embodiments, the first waterproof portion 46 may be an annular structure or a sheet structure, and covers a portion of the inner surface 432 of the inner ring portion 43.

[0108] See also Figure 4A and Figure 4B . In this embodiment, the structure and function of the electronic device and its fixed waterproof device are similar to those of the electronic device and its fixed waterproof device of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and its fixed waterproof device of the first embodiment, the flexible kit 42 of this embodiment omits the first waterproof portion 46 and includes the second waterproof portion 47. The design of the flexible kit 42 can reduce the amount of material used to reduce costs and improve processing convenience.

[0109] See also FIG. 5A to FIG. 5C . In this embodiment, the structure and function of the electronic device and the fixed waterproof device thereof are similar to those of the electronic device and the fixed waterproof device thereof of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and the fixed waterproof device thereof of the first embodiment, the flexible kit 42 of this embodiment includes at least one first waterproof portion 46, but omits the second waterproof portion 47. The end of the inner ring portion 43 is not flush with the corresponding end of the outer ring portion 44, that is, the first length L1 is not equal to the second length L2. For example, Figure 5CThe end of the inner ring portion 43 relatively protrudes from the corresponding end of the outer ring portion 44, that is, the first length L1 is less than the second length L2. Through the design of the aforementioned flexible sleeve 42, the amount of material used can be reduced to reduce costs and improve the convenience of processing. In addition, the outer surface 431 of the inner ring portion 43 has a larger area in contact with the inner surface 522 of the tube wall 52 of the column portion 515 to improve the waterproof performance. In other embodiments, the end of the inner ring portion 43 of this embodiment is flush with the corresponding end of the outer ring portion 44, that is, the first length L1 is equal to the second length L2, and the present invention is not limited thereto.

[0110] See also FIG. 6A to FIG. 6C . In this embodiment, the structure and function of the electronic device and its fixed waterproof device are similar to those of the electronic device and its fixed waterproof device of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and its fixed waterproof device of the first embodiment, the fixing kit 41 of the first plug 4 of this embodiment includes a first arc-shaped component P1, a second arc-shaped component P2 and a connecting structure P3, wherein the connecting structure P3 is connected between the first arc-shaped component P1 and the second arc-shaped component P2, and there is at least one gap 411 between the first arc-shaped component P1 and the second arc-shaped component P2, and the first arc-shaped component P1, the second arc-shaped component P2 and the connecting structure P3 are constructed as an integrally formed single-piece structure. Part of the inner ring portion 43, part of the outer ring portion 44 and part of the accommodating space 45 constitute the first arc-shaped component P1, and another part of the inner ring portion 43, another part of the outer ring portion 44 and another part of the accommodating space 45 constitute the second arc-shaped component P2. In some embodiments, the flexible sleeve 42 includes a third waterproof portion 48, which is disposed in at least one gap 411 and is structured on the outer surface 31 of the top cable 3. The first arc-shaped component P1 and the second arc-shaped component P2 are preferably made of plastic material or elastic material, but are not limited thereto. It should be emphasized that the connection method and shape profile of the connection structure P3 of the first plug 4 and the first arc-shaped component P1 and the second arc-shaped component P2 are not limited to the aforementioned embodiments, and can be adjusted according to actual needs.

[0111] See also Fig. 7A and Figure 7B In this embodiment, the structure and function of the electronic device and its fixed waterproof device are similar to those of the electronic device and its fixed waterproof device of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and its fixed waterproof device of the first embodiment, the end of the inner ring portion 43 of this embodiment is not flush with the corresponding end of the outer ring portion 44, that is, the first length L1 is not equal to the second length L2. For example, Figure 7BThe end of the inner ring portion 43 relatively protrudes from the corresponding end of the outer ring portion 44, that is, the first length L1 is less than the second length L2, so that the outer surface 431 of the inner ring portion 43 has a larger area in contact with the inner surface 522 of the tube wall 52 of the tube column portion 51 to improve the waterproof performance. It can be understood that in other embodiments, the end of the outer ring portion 44 can also relatively protrude from the end of the inner ring portion 43, that is, the first length L1 is greater than the second length L2, and the present invention is not limited thereto.

[0112] See also Fig. 8A , Figure 8B . In this embodiment, the structure and function of the electronic device and its fixed waterproof device are similar to those of the electronic device and its fixed waterproof device of the first embodiment, wherein the same component numbers represent the same structural components and functions, which will not be repeated here. Different from the electronic device and its fixed waterproof device of the first embodiment, the second plug 5 of this embodiment includes at least one extension portion 531 and a plurality of locking components 532, wherein the extension portion 531 extends outward from the circumference of the convex top portion 53 and is parallel to the outer surface of the wall 11 of the housing 1. In some embodiments, the at least one extension portion 531 includes two extension portions 531, wherein the two extension portions 531 extend outward from two opposite sides of the circumference of the convex top portion 53 and are parallel to the outer surface of the wall 11 of the housing 1. Each extension portion 531 has at least one fixing hole, wherein a plurality of locking components 532 are inserted into the corresponding fixing holes of the extension portion 531 and the corresponding screw holes of the wall 11 of the housing 1, thereby enabling the extension portion 531 to be locked on the wall 11 of the housing 1 through the plurality of locking components 532. In some embodiments, the locking component 532 is preferably a screw, but not limited thereto. In other embodiments, the first plug 4 omits the internal thread 443, and the second plug 5 omits the external thread 526, wherein the second plug 5 is not assembled with the first plug 4 by screwing in, but is locked on the wall 11 of the housing 1 by a plurality of locking components 532, thereby tightly fitting the second plug 5 and the first plug 4 to the through hole 12 of the housing 1. The fixing method of the second plug 5 of this embodiment can reduce the difficulty of producing parts, while also achieving the same fixing and sealing and waterproofing performance.

[0113] In summary, the present invention provides a waterproof fixing device and an electronic device applicable thereto. The waterproof fixing device comprises a cable, a first plug and a second plug, wherein the first plug is sleeved on the outer surface of the cable, and the first plug and the second plug are assembled and tightly arranged together at the through hole of the shell, so that the cable can be fixed at the through hole of the shell and achieve a waterproof function. The waterproof fixing device of the present invention has fewer components and a simple assembly structure, which can reduce the assembly time, and can enhance the sealing effect of the cable at the through hole of the shell to improve the waterproof performance. In addition, the waterproof fixing device of the present invention can be applied to different types of through holes, for example, the through hole can have a chamfer or a countersunk hole, etc. At the same time, the waterproof fixing device of the present invention has a high adaptability to the thickness of the shell wall and a wide range of applications.

[0114] The present invention can be modified in various ways by those skilled in the art, but all of them are within the protection of the appended claims.

Claims

1. A waterproof fixing device, comprising: A cable comprising an outer surface; A first plug, comprising: A fixing kit, comprising an inner ring portion, an outer ring portion and a receiving space, wherein the inner ring portion comprises a first channel, the first channel is configured to receive the cable, the outer ring portion is connected to and surrounds the inner ring portion, and the receiving space is located between the inner ring portion and the outer ring portion; and a flexible kit assembled with the fixing kit, wherein at least a portion of the flexible kit abuts against the outer surface of the cable; and A second plug includes a tube column portion, wherein the tube column portion includes a tube wall, and the tube wall assembly is arranged in the accommodating space of the first plug. An inner surface and an outer surface of the tube wall of the tube column portion respectively abut against an outer surface of the inner ring portion and an inner surface of the outer ring portion.

2. The waterproof fixing device as described in claim 1, wherein the flexible kit includes at least one first waterproof portion, wherein the at least one first waterproof portion is an annular structure or a sheet structure, and is arranged on the inner surface of the inner ring portion to be constructed to resist the outer surface of the cable. 3 . The waterproof fixing device as claimed in claim 2 , wherein the at least one first waterproof portion completely covers the inner surface of the inner ring portion.

4. A waterproof fixing device as described in any one of claims 1, 2 or 3, wherein the flexible kit further includes a second waterproof portion, the second waterproof portion is an annular structure, is arranged at an end of the inner ring portion and extends axially toward the first channel, wherein an inner surface and an outer surface of the second waterproof portion respectively abut against the outer surface of the cable and the inner surface of the tube wall of the tube column portion. 5 . The waterproof fixing device as claimed in claim 4 , wherein the flexible sleeve further comprises a waterproof ring, the waterproof ring being disposed around an outer surface of the outer ring portion.

6. A waterproof fixing device as described in claim 4, wherein the fixing kit of the first plug comprises a first arc-shaped component and a second arc-shaped component, the first arc-shaped component and the second arc-shaped component are separate components, and there is a gap between the first arc-shaped component and the second arc-shaped component, wherein part of the inner ring portion, part of the outer ring portion and part of the accommodating space constitute the first arc-shaped component, and another part of the inner ring portion, another part of the outer ring portion and another part of the accommodating space constitute the second arc-shaped component, wherein the flexible kit includes a third waterproof portion, which is arranged in the gap and abuts against the outer surface of the cable, wherein the first arc-shaped component and the second arc-shaped component are made of metal material, plastic material or elastic material. 7 . The waterproof fixing device as claimed in claim 6 , wherein the third waterproof portion is connected to the at least one first waterproof portion and the second waterproof portion to form an integrally formed single-piece structure.

8. A waterproof fixing device as described in claim 1, wherein the fixing kit includes a limiting structure, the limiting structure is located on an outer surface of the outer ring portion, wherein the limiting structure includes two protrusions and a groove, the two protrusions protrude from the outer surface of the outer ring portion and are arranged around the outer ring portion, wherein the groove is defined by the two protrusions and the outer surface, wherein the flexible kit includes a waterproof ring, which is arranged around the groove. 9 . The waterproof fixing device as claimed in claim 8 , wherein the limiting structure comprises at least one first limiting component adjacent to one of the two protruding portions and extending toward the groove.

10. The waterproof fixing device as claimed in claim 1, wherein the outer ring portion and the inner ring portion of the first plug have a first length and a second length respectively in an axial direction parallel to the first channel, and the first length is not equal to the second length.

11. The waterproof fixing device as claimed in claim 1, wherein the outer ring portion and the inner ring portion of the first plug have a first length and a second length respectively in an axial direction parallel to the first channel, and the first length is equal to the second length.

12. A waterproof fixing device as described in claim 1, wherein the second plug includes a convex top portion, the convex top portion is connected to one end of the tube column portion and fits onto one end of the outer ring portion of the fixing kit, wherein the tube column portion includes a second channel, and the second channel is structured on the inner ring portion that accommodates the fixing kit.

13. A waterproof fixing device as described in claim 12, wherein the fixing kit of the first plug also includes a connecting portion connected between the inner ring portion and the outer ring portion, wherein the outer surface of the inner ring portion adjacent to an end of the connecting portion has a first outer diameter, and the outer surface of the inner ring portion away from an end of the connecting portion has a second outer diameter, and the first outer diameter is greater than the second outer diameter, wherein the second channel of the tubular column portion of the second plug has a first opening and a second opening, and the first opening and the second opening are located at two opposite ends of the second channel, the first opening is away from the convex top and has a first inner diameter, and the second opening is adjacent to the convex top and has a second inner diameter, and the first inner diameter is greater than the second inner diameter. 14 . The waterproof fixing device as claimed in claim 13 , wherein the first inner diameter is equal to the first outer diameter, and the second inner diameter is equal to the second outer diameter.

15. A waterproof fixing device as described in claim 1, wherein the outer surface of the tube wall of the tube column portion of the second plug has an external thread, and the inner surface of the outer ring portion of the first plug has an internal thread, wherein the external thread is screwed together with the internal thread, so that the second plug is assembled with the first plug.

16. A waterproof fixing device as described in claim 1, wherein the fixing kit of the first plug comprises a first arc-shaped component, a second arc-shaped component and a connecting structure, the connecting structure is connected between the first arc-shaped component and the second arc-shaped component, there is at least one gap between the first arc-shaped component and the second arc-shaped component, and the first arc-shaped component and the second arc-shaped component and the connecting structure form an integrally formed single-piece structure, wherein part of the inner ring portion, part of the outer ring portion and part of the accommodating space constitute the first arc-shaped component, and another part of the inner ring portion, another part of the outer ring portion and another part of the accommodating space constitute the second arc-shaped component, wherein the flexible kit has a fourth waterproof portion, the fourth waterproof portion is arranged in the at least one gap and abuts against the outer surface of the cable, wherein the first arc-shaped component and the second arc-shaped component are made of plastic material or elastic material. 17 . The waterproof fixing device as claimed in claim 1 , wherein the material of the flexible set comprises silicone, rubber or thermoplastic polyurethane.

18. An electronic device comprising: A housing including a wall, wherein the wall has a through hole; and A waterproof fixing device is assembled on the housing, wherein the waterproof fixing device comprises: A cable comprising an outer surface; A first plug, comprising: A fixing kit, comprising an inner ring portion, an outer ring portion and a receiving space, wherein the inner ring portion comprises a first channel, the first channel is configured to receive the cable, the outer ring portion is connected to and surrounds the inner ring portion, and the receiving space is located between the inner ring portion and the outer ring portion; and a flexible kit assembled with the fixing kit, wherein at least a portion of the flexible kit abuts against the outer surface of the cable; and a second plug, comprising a column portion, wherein the column portion comprises a tube wall, the tube wall assembly is arranged in the accommodating space of the first plug, an inner surface and an outer surface of the tube wall of the column portion respectively abut against an outer surface of the inner ring portion and an inner surface of the outer ring portion, The cable of the waterproof fixing device passes through the through hole of the wall of the shell, and the first plug is tightly fitted in the through hole of the wall of the shell.

19. An electronic device as described in claim 18, wherein the fixing kit includes a limiting structure, the limiting structure is located on an outer surface of the outer ring portion, wherein the limiting structure includes two protrusions and a groove, the two protrusions protrude from the outer surface of the outer ring portion and are arranged around the outer ring portion, wherein the groove is defined by the two protrusions and the outer surface, and wherein the flexible kit includes a waterproof ring, which is arranged around the groove.

20. An electronic device as described in claim 19, wherein the limiting structure of the fixing kit includes at least one first limiting component, adjacent to one of the two protrusions and extending toward the groove, wherein the shell includes at least one second limiting component, arranged on a hole wall of the through hole of the wall surface and corresponding to the first limiting component, wherein the first limiting component of the fixing kit is structured to engage with the second limiting component of the shell. 21 . The electronic device as claimed in claim 18 , wherein the second plug comprises a convex top portion, the convex top portion is connected to one end of the tube column portion and is attached to one end of the outer ring portion of the fixing kit.

22. An electronic device as described in claim 21, wherein the convex top portion includes at least one extension portion and a plurality of locking components, wherein the extension portion extends outward from a circumferential surface of the convex top portion and is parallel to the wall surface of the shell, and the extension portion has at least one fixing hole, wherein the locking component is penetrated through the fixing hole of the extension portion and the shell, so that the extension portion is locked to the wall surface of the shell through the plurality of locking components.

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