Power plug device

Abstract

The application discloses a power plug device, which comprises a first shell, a circuit board, a wire set and a second shell. The first shell comprises an upper shell body, a through hole and an inner cover. The upper shell body is internally provided with a containing portion, the through hole is arranged on the side of the upper shell body, the inner cover is fixed in the containing portion, the inner cover is internally provided with a containing groove, and the through hole is communicated with the containing groove. The wire comprises a core wire, the core wire passes through the through hole and the containing groove, so that the core wire is contained in the containing portion, and the containing groove is suitable for containing a glue body to fix the core wire and has a waterproof effect. In addition, the first shell and the second shell are combined by double ultrasonic waves, so that the waterproof effect is better.

Description

Technical Field

[0001] This invention relates to the field of power supply applications, and in particular to a power plug device. Background Technology

[0002] Typical power connection devices usually include a power module containing a printed circuit board, but lack waterproof or dustproof structures. This often allows moisture or suspended particles to easily seep into or accumulate on the electrodes at the ports. As the device ages, the electrodes corrode, causing malfunctions or short circuits. This can cause the voltage of the entire device to rise instantly, damaging the electrical equipment supplying power and shortening its lifespan. It can even lead to fires or electrical leaks.

[0003] Therefore, how to improve existing power plug devices to address the aforementioned problems will be a challenge for the industry. Summary of the Invention

[0004] This invention proposes a power plug device that is waterproof.

[0005] An embodiment of the present invention provides a power plug device, including a first housing, a circuit board, a wire assembly, and a second housing. The first housing includes an upper housing body, a through hole, and an annular slot. The through hole passes through the upper housing body, and the annular slot is located at the open end of the first housing. The annular slot includes a first slot protrusion, a second slot protrusion, and an upper housing recess, with the first slot protrusion and the second slot protrusion forming the upper housing recess. The circuit board is disposed within the upper housing body. Wires pass through the through hole and are electrically connected to the circuit board. The second housing includes a lower housing body, a pair of conductive pins, a cover edge, a first protrusion, a second protrusion, and a lower housing recess. The pair of conductive pins are connected to one side of the lower housing body, and the cover edge is connected to the other side of the lower housing body. The first protrusion and the second protrusion protrude from the cover edge, and the lower housing recess is provided between the first protrusion and the second protrusion. The first protrusion engages within the upper housing recess, and the second slot protrusion engages within the lower housing recess, thereby combining the first housing and the second housing.

[0006] In one embodiment, the first housing further includes a receiving portion, and the receiving portion is provided inside the first housing.

[0007] In one embodiment, the first housing further includes an inner cover, which is fixed inside the receiving portion. The inner cover has a receiving groove inside and a through hole communicating with the receiving groove.

[0008] In one embodiment, the wire includes a core wire that passes through a through-hole and a receiving groove, such that the core wire is received within the receiving groove.

[0009] In one embodiment, the receiving groove is adapted to receive a colloid to fix the core wire.

[0010] In one embodiment, the circuit board includes a first segment, a second segment, and a recess. The first segment is connected to the second segment, and the second segment forms a recess relative to the first segment. The circuit board is disposed within a receiving portion, and the recess abuts against an inner cover. Core wires are electrically connected to the second segment.

[0011] In one embodiment, the first housing includes a recess. The recess is disposed within a through hole, and the wire includes a main body and a necked section, the main body being connected to the necked section, the necked section being used to engage the recess.

[0012] In one embodiment, the main body of the line is made of a soft material.

[0013] Another embodiment of the invention provides a power plug device, including a first housing, a wire, a circuit board, and a second housing. The first housing includes an upper housing body, a receiving portion, a through hole, and an inner cover. The receiving portion is provided within the upper housing body, the through hole is located on the side of the upper housing body, the inner cover is fixed within the receiving portion, and the inner cover has a receiving groove, with the through hole communicating with the receiving groove. The wire includes a core wire that passes through the through hole and the receiving groove, such that the core wire is received within the receiving portion, and the receiving groove is adapted to receive an adhesive to fix the core wire. The circuit board includes a first segment, a second segment, and a recess, wherein the first segment is connected to the second segment, and the second segment forms a recess relative to the first segment. The circuit board is disposed within the receiving portion, and the recess rests against the inner cover. The core wire is electrically connected to the second segment. The second housing includes at least one plug, and the second housing is engaged with the first housing.

[0014] In one embodiment, the first housing includes a recess. The recess is disposed within a through hole, and the wire includes a wire body and a necked-off section. The wire body is connected to the necked-off section, which is used to engage the recess.

[0015] In one embodiment, the main body of the line is made of a soft material.

[0016] In one embodiment, the first housing includes a slot. The slot is disposed at the open end of the first housing.

[0017] In one embodiment, the slot includes a first slot protrusion, a second slot protrusion, and an upper shell recess. The upper shell recess is formed between the first slot protrusion and the second slot protrusion.

[0018] In one embodiment, the second housing further includes a lower housing body. At least one plug is connected to one side of the lower housing body.

[0019] In one embodiment, the second housing further includes a cover flange. The cover flange is connected to the other side of the lower housing body.

[0020] In one embodiment, the second housing further includes a first protrusion, a second protrusion, and a lower housing recess. The first protrusion and the second protrusion protrude from the cover edge, and the lower housing recess is provided between the first protrusion and the second protrusion.

[0021] In one embodiment, the first protrusion is ultrasonically welded to the upper shell recess, and the second slot protrusion is ultrasonically welded to the lower shell recess, so that the first shell and the second shell are joined together. Attached Figure Description

[0022] The components, features, and advantages of the present invention can be understood through the detailed description of the preferred embodiments outlined in the specification and the accompanying drawings:

[0023] Figure 1 This is a three-dimensional view of a power plug device.

[0024] Figure 2 This is an exploded view of the power plug assembly.

[0025] Figure 3 for Figure 1 A cross-sectional view of the power plug device.

[0026] Figure 4 for Figure 3 A magnified view of circle A of the power plug device.

[0027] Figure 5 for Figure 3 A magnified view of circle B of the power plug device.

[0028] Figures 6 to 12 This is a schematic diagram of the assembly process for a power plug device.

[0029] Figures 13 to 14 This is a schematic diagram of the wire assembly.

[0030] Explanation of key component symbols:

[0031] 100: Power plug device

[0032] 110: First shell

[0033] 112: Upper shell body

[0034] 113: Compartment

[0035] 114: Perforation

[0036] 115: Guide groove

[0037] 116: Circular slot

[0038] 116A: First slot protrusion

[0039] 116B: Second slot protrusion

[0040] 116C: Recessed part of upper shell

[0041] 117: Inner cover

[0042] 117A: Receiving slot

[0043] 118: concave part

[0044] 120: Circuit board

[0045] 122: First Section

[0046] 124: Second Section

[0047] 126: concave part

[0048] 130: Wire assembly

[0049] 1310: Coupling unit

[0050] 131: Main body of the conductor

[0051] 132: Core wire

[0052] 134: Line stop

[0053] 136: Cervical constriction

[0054] 140: Second shell

[0055] 142: Lower shell main body

[0056] 144: Conductive pin

[0057] 146: Lid edge

[0058] 147: Recessed part of lower shell

[0059] 147A: First convex part

[0060] 147B: Second convex part

[0061] G: Opening

[0062] GB: Colloids

[0063] PA, PB: Welded section Detailed Implementation

[0064] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. These examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0065] It should be noted that in the descriptions of the various embodiments, the terms "first" and "second" are used to describe different components, and these components are not limited by such terms. Furthermore, for ease of explanation and clarity, the thickness or dimensions of each component in the drawings are exaggerated, omitted, or approximated for the understanding and reading of those skilled in the art. The dimensions of each component are not exactly their actual dimensions and are not intended to limit the implementation of the invention; therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention.

[0066] In this embodiment, please refer to Figures 1 to 5 The power plug device 100 includes a first housing 110, a circuit board 120, a wire assembly 130, and a second housing 140, wherein the first housing 110 may be referred to as the upper housing, and the second housing 140 may be referred to as the lower housing. The first housing 110 includes an upper housing body 112 with an opening G, a closed bottom opposite the opening G, a receiving portion 113 formed by the upper housing body 112 and the bottom located inside the upper housing body 112, a through hole 114 disposed on one side of the upper housing body 112, connecting the receiving portion 113 to the outside of the upper housing body 112, an annular groove 116, and an inner cover 117. (Reference) Figure 3 ( Figure 1 (Cross-sectional view of the power plug device) and Figure 4 (Enlarged view of partial area A) The inner cover 117 is fixed within the aforementioned accommodating portion 113. The space enclosed by the inner cover 117, the inner sidewall of the upper shell body 112, and its bottom forms an accommodating groove 117A, and the through hole 114 connects to the accommodating groove 117A, allowing the accommodating groove 117A to communicate with the outside of the upper shell body 112 through the through hole 114. Figure 2 As shown, a guide groove 115 is disposed on the inner sidewall of the upper shell body 112, located inside the receiving portion 113, and extends inward along the inner sidewall after being recessed by a predetermined distance from the opening G. Figure 2 and Figure 5 As shown, an annular groove 116 is provided at the opening G of the upper shell body 112, and includes a first groove protrusion 116A, a second groove protrusion 116B and an upper shell recess 116C, with the upper shell recess 116C formed between the first groove protrusion 116A and the second groove protrusion 116B. Figure 2 The circuit board 120 shown can be installed inside the upper housing body 112 via the guide groove 115.

[0067] refer to Figure 2 as well as Figure 3The conductor group 130 passes through the through hole 114 and is electrically connected to the circuit board 120. The circuit board 120 includes a first segment 122, a second segment 124, and a recess 126. The first segment 122 is connected to the second segment 124, and the second segment 124 forms a recess 126 relative to the first segment 126. The circuit board 120 is disposed within the receiving portion 113, and the recess 126 abuts against the inner cover 117. The core wire 132 is electrically connected to the second segment 124.

[0068] In one embodiment, reference Figure 2 The first housing 110 includes a recess 118 disposed within the through hole 114. The conductor assembly 130 includes a conductor body 131 and a coupling unit 1310, wherein the coupling unit 1310 includes a wire stop 134 and a necking section 136. The conductor body 131 covers the core wire 132 and connects to the necking section 136. The conductor body 131 passes through the wire stop 134 and the necking section 136 in the coupling unit 1310, with the core wire 132 exposed at one end. The necking section 136 in the coupling unit 1310 is used to lock the recess 118 in the through hole 114 when the conductor assembly 130 is installed, forming an interlocking structure. Since the conductor body 131 and its covered core wire 132 are both made of soft materials, the necking section 136 can be designed as a snap-fit ​​structure, so that the conductor assembly 130 can be assembled into the first housing 110 without applying excessive force.

[0069] In this embodiment, the first housing 110 and the second housing 140 have at least two mating protrusions and recesses, and the at least two mating recesses and protrusions are ultrasonically welded together, so that the first housing 110 and the second housing 140 are joined together. Details will be described in the following paragraphs.

[0070] For example, refer to Figures 2 to 5 The second housing 140 includes a lower housing body 142, a pair of conductive pins 144, a cover edge 146, and a lower housing recess 147 formed between an annular first protrusion 147A and an annular second protrusion 147B extending therefrom. The pair of conductive pins 144 are disposed on one side of the lower housing body 142 and protrude beyond it for conducting electricity. The cover edge 146 is connected to the other side (opposite side) of the lower housing body 142. Figure 5 The details of the connection between the upper and lower shells are shown above. The first protrusion 147A and the annular second protrusion 147B protrude from the cover edge 146, and an annular lower shell recess 147 is formed between the first protrusion 147A and the second protrusion 147B. The first protrusion 147A is ultrasonically welded to the upper shell recess 116C, and the second slot protrusion 116B is ultrasonically welded to the lower shell recess 147, so that the first shell 110 and the second shell 140 are joined together to form a sealed structure.

[0071] During the assembly process, firstly, as Figures 6 to 8 Then, wire assembly is performed, which involves passing the wire assembly 130 through the through hole 114. More specifically, as... Figures 13 to 14 The wire assembly 130 includes a core wire 132, which passes through a through hole 114 and a receiving groove 117A, so that the core wire 132 is housed within the receiving portion 113. Next, a potting process is performed, and the receiving groove 117A is adapted to accommodate adhesive GB to fix the core wire 132 (e.g., ...). Figure 8 (As shown), it has a waterproof effect. The amount of colloid GB does not need to cover the entire receiving portion 113, but only needs to fill the receiving groove 117A, which can significantly reduce the amount of colloid GB used. It should be noted that the present invention does not limit the composition of colloid GB. For example, it can be silicone, epoxy resin, polyurethane resin, butyl rubber, chlorosulfonated polyethylene rubber, natural rubber, acrylic rubber, neoprene rubber, or a combination of the above materials.

[0072] Furthermore, since the conductor body 131 of the present invention is made of a soft material, it can be designed as a snap-fit ​​structure of the necked section 136, so that the wire 130 can be assembled into the first housing 110 without applying excessive force.

[0073] Next, as Figures 9 to 10 The circuit board 120 is assembled into the receiving portion 113 within the first housing 110, and the wire assembly 130 is electrically connected to the circuit board 120. Specifically, the circuit board 120 is guided into the receiving portion 113 via a slot 116, and the recess 126 rests against the inner cover 117 located within the receiving portion 113. The core wire 132 is electrically connected to the second section 124 (see reference). Figure 2 ).

[0074] Next, as Figures 11 to 12 The assembly is completed by assembling the second housing 140 to the first housing 110. Specifically, as shown in Figure 5, the first protrusion 147A and the second protrusion 147B protrude from the cover edge 146. The first protrusion 147A has a welded portion PA, and the second slot protrusion 116B has a welded portion PB. The first protrusion 147A, welded portion PA, second slot protrusion 116B, and welded portion PB are all annular. Through the welded portions PA and PB, the first protrusion 147A is ultrasonically welded to the upper housing recess 116C, and the second slot protrusion 116B is ultrasonically welded to the lower housing recess 147, thus combining the first housing 110 and the second housing 140 together. In this way, in addition to ultrasonic welding in the upper housing recess 116C, ultrasonic welding is also used in the lower housing recess 147, achieving a double-layer waterproof function and improving the waterproof effect.

[0075] In summary, this invention uses dual ultrasonic welding to join the first and second shells together, achieving a better waterproof effect.

[0076] In addition, a pair of conductive pins 144 disposed on the lower housing body 142 are electrically connected to the circuit board 120 and form a conductive path with the wire group 130.

[0077] Furthermore, the receiving groove of the present invention is suitable for containing colloid to fix the core wire. In this way, the amount of colloid does not need to cover the entire receiving portion of the first housing (upper housing), but only needs to be filled into the receiving groove, which can greatly reduce the amount of colloid used.

[0078] Furthermore, the receiving groove of the present invention is suitable for containing colloid to fix the core wire, and the colloid also has a waterproof effect.

[0079] In addition, since the wire of the present invention is made of a flexible material, it can be designed as a snap-fit ​​structure with a necked section, so that the wire can be assembled into the first housing (upper housing) without applying excessive force.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention and its benefits have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the claims of the present invention.

Claims

1. A power plug device, characterized by, The power plug device includes: An upper shell body has an opening, an inner cover, and a closed bottom located on the opposite side of the opening. The upper shell body and the bottom form a receiving portion, which is located inside the upper shell body. A through hole is provided through the upper shell body, and an annular groove is provided in the opening of the upper shell body. The annular groove includes a first groove protrusion, a second groove protrusion, and an upper shell recess. The upper shell recess is formed between the first groove protrusion and the second groove protrusion. The inner cover is fixed in the receiving portion. The inner cover, the inner sidewall of the upper shell body, and the bottom of the upper shell body form a receiving groove. The through hole communicates with the receiving groove and the outside of the upper shell body. A circuit board is disposed inside the upper shell body; An electrical wire assembly passes through the through-hole and is electrically connected to the circuit board; the electrical wire assembly includes a core wire that passes through the through-hole and the receiving groove, such that the core wire is received within the receiving groove; wherein the receiving groove is adapted to accommodate an adhesive, which is filled into the receiving groove by potting to fix the core wire; and The shell body comprises a pair of conductive pins, a cover edge, a first protrusion, a second protrusion, and a lower shell recess. The pair of conductive pins are located on one side of the lower housing body and protrude outwards, electrically connecting the circuit board and the wire assembly to form a conductive path. The cover edge is connected to the other side of the lower shell body. The first protrusion and the second protrusion protrude from the cover edge, and the lower shell recess is formed between the first protrusion and the second protrusion. The first protrusion aligns with the upper shell recess of the annular slot to engage within the upper shell recess. The second slot protrusion aligns with the lower shell recess to engage within the lower shell recess, so that the upper shell body and the lower shell body are combined together. The structure formed by the upper shell recess of the annular slot aligning with the first protrusion in the lower shell body and the second slot protrusion of the annular slot aligning with the lower shell recess, is used to connect the upper shell body and the lower shell body through double-layer ultrasonic welding, forming a structure with double-layer waterproof function after joining.

2. The power plug device according to claim 1, characterized in that, The circuit board includes a first section, a second section, and a recess. The first section is connected to the second section, and the second section forms the recess relative to the first section. The circuit board is disposed within the receiving portion, and the recess rests against the inner cover. The core wire is electrically connected to the second section.

3. The power plug device according to claim 1, characterized in that, The power plug device also includes a recess disposed within the through hole, and the wire includes a conductor body and a coupling unit for interlocking with the recess.

4. The power plug device according to claim 3, characterized in that, The coupling unit includes a wire stop and a necking section. The conductor body covers the core wire and passes through the wire stop and the necking section, wherein the necking section engages with the recess to form an interlocking structure.

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