Power cord assembly

Abstract

A power cord assembly includes a wire, a sheath, a waterproof structure, and a fixing member. The sheath covers an end portion of the wire. The sheath is fixed in an interface of a charging unit, and the sheath has a hardness of 60P to 110P. The waterproof structure protrudes from the sheath and is in contact with a bottom surface of the interface. The fixing member is connected to the charging unit and presses the sheath to fix the sheath in the interface.

Description

Technical Field

[0001] This utility model relates to a power cord assembly. More specifically, this utility model relates to a power cord assembly with a waterproof structure. Background Technology

[0002] Figure 1 This is a schematic diagram showing a partial explosion of a conventional battery charger 100. (Example) Figure 1 As shown, a typical battery charger 100 mainly includes a power cord assembly W1 and a charging unit 10 that are electrically connected to each other. The aforementioned power cord assembly W1 includes a PVC sheath 11, a wire 12, multiple fasteners 13 (such as screws), and an O-ring R.

[0003] In order for the aforementioned battery charger 100 to achieve an IP65 or higher level of waterproof performance, a silicone O-ring R is usually sandwiched between the aforementioned protective sleeve 11 and the charging unit 10.

[0004] from Figure 1 As can be seen, a boss 101 is provided on an outer surface S1 of the charging unit 10, and an interface 102 is formed in the center of the boss 101. On the other hand, the aforementioned sheath 11 includes a base 111 and an extension 112 that are connected to each other. During assembly, the wire 12 can pass through the extension 112 and the base 111 of the aforementioned sheath 11 in sequence and extend into the interface 102 to electrically connect an external power source to the charging circuit inside the charging unit 10.

[0005] After the base 111 of the sheath 11 is attached to the interface 102 in the center of the boss 101, the fastener 13 can be passed through the base 111 of the sheath 11 and locked into the boss 101. At this time, the O-ring R will be clamped between the sheath 11 and the boss 101 of the charging unit 10. In this way, the power cord assembly W1 can be fixed on the outer surface S1 of the charging unit 10.

[0006] However, during the process of locking the aforementioned fastener 13 into the boss 101, the O-ring R is often not evenly compressed due to installation size errors. At this time, the O-ring R may be misaligned, resulting in incomplete sealing, which affects the overall waterproof effect of the battery charger 100.

[0007] On the other hand, since the PVC sheath 11 has high hardness, cracks or structural damage may occur in the sheath 11 during the process of locking the fastener 13 into the boss 101.

[0008] In view of the aforementioned problems, designing a durable and waterproof power cord assembly for conventional battery chargers has become a major challenge for researchers in this field. Utility Model Content

[0009] In view of the aforementioned problems with conventional methods, one embodiment of the present invention provides a power cord assembly connected to an interface of a charging unit. The power cord assembly includes a conductor, a sheath, a waterproof structure, and a fixing member. The sheath covers one end of the conductor, and both the sheath and the end of the conductor are fixed within the interface. The sheath has a hardness between 60P and 110P. The waterproof structure is formed on the sheath and protrudes from one end face of the sheath, contacting a bottom surface of the interface. The fixing member connects to the charging unit and presses against the sheath to secure it within the interface.

[0010] In one embodiment, the aforementioned sheath has a quadrilateral base and a bendable extension, the aforementioned base and the aforementioned extension being interconnected, and the aforementioned wire passing through the aforementioned base and the aforementioned extension, wherein the aforementioned waterproof structure is formed on the aforementioned base.

[0011] In one embodiment, the aforementioned base is sandwiched between the aforementioned fastener and a bottom surface of the aforementioned interface.

[0012] In one embodiment, the aforementioned sheath has a raised rib, and the raised rib surrounds the aforementioned base.

[0013] In one embodiment, the aforementioned power cord assembly further includes a plurality of locking fasteners, and the aforementioned fasteners are flat, wherein the aforementioned locking fasteners pass through the aforementioned fasteners and are locked into the aforementioned charging unit.

[0014] In one embodiment, the aforementioned fastener is an SUS 304 fastener, an SUS 302 fastener, or an SGCC fastener.

[0015] In one embodiment, the aforementioned charging unit has an outer surface and a quadrilateral boss, the aforementioned boss protruding from the aforementioned outer surface and forming four protrusions, the aforementioned protrusions being located at the four corners of the aforementioned boss, the aforementioned fastener passing through the aforementioned fastener and locking into the aforementioned protrusions respectively.

[0016] In one embodiment, the aforementioned power cord assembly further includes a protruding structure extending beyond the aforementioned end face, and the aforementioned waterproof structure surrounds the aforementioned protruding structure.

[0017] In one embodiment, the aforementioned protruding structure is embedded in a through hole of the aforementioned charging unit.

[0018] In one embodiment, the aforementioned sheath is a PVC sheath, a TPU sheath, or a silicone sheath. Attached Figure Description

[0019] Figure 1 A schematic diagram showing a partial explosion of a conventional battery charger 100;

[0020] Figure 2 An exploded view showing a battery charger 200 according to an embodiment of the present invention;

[0021] Figure 3 express Figure 2 The image shows a three-dimensional view of the assembled battery charger 200.

[0022] Figure 4 express Figure 2 Another perspective perspective of the sheath 21 and the wire 22 in the middle;

[0023] Figure 5 express Figure 3 A partial cross-sectional view of the battery charger 200 in the image;

[0024] Figure 6 express Figure 5 An enlarged view of part A in the image.

[0025] [Symbol Explanation]

[0026] 100: Battery Charger

[0027] 10: Charging unit

[0028] 11: Sheath

[0029] 12: Wire

[0030] 13: Locking hardware

[0031] 101: convex platform

[0032] 102: Interface

[0033] 111: Base

[0034] 112: Extension

[0035] 200: Battery Charger

[0036] 20: Charging unit

[0037] 201: convex platform

[0038] 202: Interface

[0039] 203: Bottom

[0040] 204: bump

[0041] 21: Sheath

[0042] 211: Base

[0043] 2111: End face

[0044] 212: Extension

[0045] 22: Wire

[0046] 221:End

[0047] 23: Locking hardware

[0048] 24: Fasteners

[0049] 241: Through hole

[0050] H: Perforation

[0051] P1: Convex Rib

[0052] P2: Waterproof structure

[0053] P3: Protruding structure

[0054] R: O-ring

[0055] S1: Outer surface

[0056] S2: Outer surface

[0057] W1: Power cord assembly

[0058] W2: Power cord assembly Detailed Implementation

[0059] The following describes a power cord assembly according to an embodiment of the present invention. However, it will be readily apparent that the embodiments of the present invention provide many suitable inventive concepts that can be implemented in a wide range of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the present invention in particular ways and are not intended to limit the scope of the present invention.

[0060] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant technology and the context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0061] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used in the embodiments are for illustrative purposes and not for limiting the present utility model.

[0062] Please refer to the following: Figure 2 , 3 ,in Figure 2 This is an exploded view of a battery charger 200 according to an embodiment of the present invention. Figure 3 express Figure 2 The image shows a three-dimensional view of the assembled battery charger 200.

[0063] like Figure 2 , 3 As shown, the battery charger 200 of this embodiment mainly includes a power cord assembly W2 and a charging unit 20 that are electrically connected to each other. The aforementioned power cord assembly W2 includes a PVC sheath 21, a wire 22, a plurality of fasteners 23 (e.g., screws) and a flat fixing member 24.

[0064] from Figure 2 As can be seen, a boss 201 is provided on an outer surface S2 of the charging unit 20, and an interface 202 is formed in the center of the boss 201. On the other hand, the aforementioned sheath 21 includes a base 211 and a bendable extension 212 that are interconnected, wherein the wire 22 passes through the extension 212 and the base 211 of the aforementioned sheath 21 and extends into the aforementioned interface 202, for electrically connecting an external power source to the charging circuit inside the charging unit 20.

[0065] Specifically, during assembly, the base 211 of the sheath 21 can be first attached to the interface 202 in the center of the boss 201. Then, the fastener 23 is passed through the through hole 241 on the fastener 24 (e.g., a stainless steel sheet) and locked into the protrusions 204 at the four corners of the quadrilateral boss 201, so that the base 211 of the sheath 21 can be tightly clamped between the fastener 24 and the bottom surface 203 of the interface 202 by the pressure of the fastener 24.

[0066] In this state, since the base 211 of the sheath 21 is engaged with the interface 202 in the center of the boss 201, the power cord assembly W2 can be securely connected to the charging unit 20. In this embodiment, the bottom surface 203 of the aforementioned interface 202 can also form part of the housing of the charging unit 20.

[0067] In addition, from Figure 2As can be seen, an annular rib P1 is formed on the side of the base 211 of the sheath 21 in this embodiment. The aforementioned rib P1 surrounds the base 211 of the sheath 21. When the base 211 of the sheath 21 and the interface 202 in the center of the boss 201 are combined with each other, the aforementioned rib P1 can be sealed with the side wall of the interface 202 to prevent water or dust from entering the charging unit 20 through the interface 202.

[0068] Please refer to the following: Figure 4 , 5 6, Figure 4 express Figure 2 Another perspective perspective of the sheath 21 and the wire 22 in the middle. Figure 5 express Figure 3 A partial cross-sectional view of the battery charger 200 in the middle. Figure 6 express Figure 5 An enlarged view of part A in the image.

[0069] Please see Figure 4 In this embodiment, the base 211 of the sheath 21 has a generally quadrilateral structure, wherein a generally quadrilateral waterproof structure P2 is formed on the end face 2111 of the base 211. The aforementioned waterproof structure P2 protrudes from the end face 2111 of the base 211 and faces the charging unit 20.

[0070] Furthermore, a protruding structure P3 is formed on the end face 2111 of the base 211, wherein the end 221 of the aforementioned wire 22 passes through the base 211 of the sheath 21 and protrudes from the aforementioned protruding structure P3, and when the battery charger 200 is assembled, the aforementioned protruding structure P3 will be embedded in a through hole H of the charging unit 20 (e.g., Figure 5 , 6 (As shown).

[0071] It should be noted that in this embodiment, the waterproof structure P2 surrounds the protruding structure P3, and when the base 211 of the sheath 21 is pressed by the fixing member 24 and is combined with the interface 202 in the center of the boss 201, the waterproof structure P2 on the base 211 will be in close contact with the bottom surface 203 of the interface 202 to prevent water or dust from entering the charging unit 20 through the interface 202, so that the battery charger 200 can achieve a waterproof effect of IP65 or higher.

[0072] In summary, this utility model mainly utilizes a fastener 23 (e.g., a screw) to lock and fix a fixing member 24 (e.g., a stainless steel sheet) to one side of the charging unit 20. This allows the fixing member 24 to press the base 211 of the sheath 21 and make it fit into an interface 202 on the side of the charging unit 20. Furthermore, by forming a protruding waterproof structure P2 on the end face 2111 of the base 211 of the sheath 21, water or dust can be effectively prevented from entering the charging unit 20 through the interface 202, thereby significantly improving the waterproof and dustproof performance of the battery charger 200.

[0073] For example, the aforementioned sheath 21 may contain PVC, TPU, or silicone material, and its hardness is approximately between 60 and 110P. On the other hand, the aforementioned fastener 24 may be a metal spring made of materials such as SUS 304, SUS 302, or SGCC, but is not limited to those disclosed in the various embodiments of this utility model.

[0074] While the embodiments and advantages of this utility model have been disclosed above, it should be understood that anyone skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of this utility model. Furthermore, the scope of protection of this utility model is not limited to the processes, machines, manufacturing, material composition, apparatus, methods, and steps described in the specific embodiments of the specification. Anyone skilled in the art can understand from the disclosure of this utility model any existing or future developed processes, machines, manufacturing, material composition, apparatus, methods, and steps, as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein, and can be used according to this utility model. Therefore, the scope of protection of this utility model includes the aforementioned processes, machines, manufacturing, material composition, apparatus, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of this utility model also includes combinations of the various claims and embodiments.

[0075] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A power cord assembly, characterized by, An interface connected to a charging unit, wherein the power cord assembly includes: One wire; A sheath covers one end of the conductor, wherein the sheath and the end are fixed within the interface, and the sheath has a hardness between 60P and 110P. A waterproof structure is formed on the sheath and protrudes from one end face of the sheath, wherein the waterproof structure is in contact with a bottom surface of the interface; and A fastener connects to the charging unit and presses against the sheath to secure the sheath within the interface.

2. The power cord assembly of claim 1, wherein, The sheath has a quadrilateral base and a bendable extension, the base and the extension being interconnected, and the wire passing through the base and the extension, wherein the waterproof structure is formed on the base.

3. The power cord assembly of claim 2, wherein, The base is sandwiched between the fastener and the bottom surface of the interface.

4. The power cord assembly of claim 2, wherein, The sheath has a raised rib that surrounds the base.

5. The power cord assembly of claim 1, wherein, The power cord assembly also includes multiple locking fasteners, and the fastener is flat, wherein the multiple locking fasteners pass through the fastener and lock into the charging unit.

6. The power cord assembly of claim 5, wherein, The fastener is an SUS 304 fastener, an SUS 302 fastener, or an SGCC fastener.

7. The power cord assembly of claim 5, wherein, The charging unit has an outer surface and a quadrilateral boss that protrudes from the outer surface and has four protrusions. The four protrusions are located at the four corners of the boss. The plurality of fasteners pass through the fastener and are locked into the four protrusions respectively.

8. The power cord assembly of claim 1, wherein, The power cord assembly also includes a protrusion extending out of the end face, and the waterproof structure surrounds the protrusion.

9. The power cord assembly as claimed in claim 8, characterized in that, The protruding structure is embedded in a perforation of the charging unit.

10. The power cord assembly of claim 1, wherein, The cover can be a PVC cover, a TPU cover, or a silicone cover.

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