CN118801149A - Waterproof electrical connection device - Google Patents

Abstract

The present invention provides a waterproof electrical connection device, comprising a waterproof shell, a socket assembly, at least one wire and a waterproof plug. The waterproof shell has a wiring port, the inner side surface of the waterproof shell is provided with a ring step surface facing the wiring port, and the wiring port cover has an end cover. The socket assembly is accommodated in the waterproof shell. The waterproof plug is arranged at the wiring port to close the wiring port, and the wire is connected to the connector of the socket assembly and passes through the waterproof plug to pass out of the waterproof shell. The waterproof plug has an inner end and an outer end opposite to the inner end, the inner end is arranged toward the socket assembly and a longitudinal ring rib is provided on the inner end, wherein the end cover is locked with the waterproof shell along the longitudinal direction of the waterproof plug and presses the outer end so that the longitudinal ring rib presses the ring step surface. Accordingly, the circuit board in the socket assembly can use a public version to save raw materials and processing costs.

Description

Waterproof electrical connection device

Technical Field

The invention relates to an electric connector, in particular to an immersion heat dissipation waterproof electric connection device.

Background Art

Fiber optic transceivers are one of the key components of fiber optic communication systems. They can convert electrical signals and optical signals to transmit information, and release heat energy while converting optical and electrical signals. As the transmission speed of fiber optic transceivers increases, the heat energy released also increases. Therefore, the outer surface of fiber optic transceivers also needs to be further configured with fins and other heat dissipation mechanisms. As the immersion heat dissipation system using dielectric fluid matures, the immersion heat dissipation system can also be used for heat dissipation of fiber optic transceivers. However, fiber optic transceivers need to be set at the boundary of dry and wet spaces for easy plugging and unplugging. Their waterproofness and heat conductivity are both topics to be improved in this technical field. In general, the wire is inserted from the wet area into the dry area through a waterproof plug, and then the wire is welded to a control circuit board of a socket assembly and electrically connected to the connector on the control circuit board for external data exchange. However, the control circuit board is expensive and is generally a public version that is not designed specifically for immersion systems. Modifying the circuit on the control circuit board for welding wires is less economical.

In view of this, the inventor has devoted himself to studying the above-mentioned prior art and has applied theoretical knowledge to try his best to solve the above-mentioned problems, which has become the goal of the inventor's improvement.

Summary of the invention

The invention provides a waterproof electrical connection device for immersion heat dissipation.

The present invention provides a waterproof electrical connection device, which includes a waterproof shell, a socket assembly, at least one wire and a waterproof plug. The waterproof shell has a wiring port, the inner side surface of the waterproof shell is provided with a ring step surface facing the wiring port, and the wiring port cover has an end cover. The socket assembly is accommodated in the waterproof shell, and the socket assembly includes a circuit board and a connector arranged on the circuit board. The wire is connected to the connector and passes through the waterproof shell through the wiring port. The waterproof plug covers one section of the wire, and the waterproof plug is arranged at the wiring port to close the wiring port. The waterproof plug has an inner end and an outer end opposite to the inner end, the inner end is arranged toward the socket assembly and a longitudinal ring rib is provided on the inner end, wherein the end cover is locked with the waterproof shell along the longitudinal direction of the waterproof plug and presses the outer end so that the longitudinal ring rib presses the ring step surface, and the waterproof plug covers the connection between the wire and the circuit board.

In one embodiment of the present invention, the end cover comprises a plurality of frames connected to form a through hole, and when the plurality of frames are assembled, the inner edge of the through hole is pressed against the outer side of the waterproof plug. Each frame is respectively locked with the waterproof cover along the longitudinal direction of the waterproof plug.

In one embodiment of the present invention, a transverse ring rib is disposed on the outer side of the waterproof plug, and the transverse ring rib abuts against the inner side of the waterproof cover.

In one embodiment of the present invention, the connector includes a plurality of terminals, the wire material includes a plurality of conductors, each conductor has a welding end, each conductor has a core and an insulating layer covering the core, in each conductor, the core is exposed at the welding end and welded to the corresponding terminal. Each terminal is provided with a welding groove, each welding groove has a notch and a slope, each slope is a concave surface, each welding end is respectively accommodated in each corresponding notch and is carried on each corresponding slope. The diameter of each welding end is greater than the width of the corresponding notch.

In one embodiment of the present invention, each slope surface is a plane, each welding end is respectively accommodated in each corresponding notch, and the diameter of each welding end is smaller than the width of the corresponding notch.

In one embodiment of the present invention, each terminal is a long strip of metal.

In the waterproof electrical connection device of the present invention, each wire is connected to a corresponding connector in the socket assembly for external data exchange, and each wire is electrically connected to a circuit board. Therefore, a public version can be used for the circuit board, thereby saving raw material and processing costs.

BRIEF DESCRIPTION OF THE DRAWINGS

1 and 2 are three-dimensional schematic diagrams of a waterproof electrical connection device according to an embodiment of the present invention.

3 and 4 are exploded perspective views of a waterproof electrical connection device according to an embodiment of the present invention.

FIG. 5 is a perspective schematic diagram of a waterproof plug in a waterproof electrical connection device according to an embodiment of the present invention.

FIG. 6 is a longitudinal cross-sectional view of a waterproof electrical connection device according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a heat conducting plate in a waterproof electrical connection device according to an embodiment of the present invention.

FIG. 8 is a schematic diagram of a use state of a heat conducting plate in a waterproof electrical connection device according to an embodiment of the present invention.

Figures 9 to 11 are schematic diagrams of the welding structure of the welding foot and the welding end in a waterproof electrical connection device according to an embodiment of the present invention. Figure 12 is a schematic diagram of another state of the welding structure of the welding foot and the welding end in a waterproof electrical connection device according to an embodiment of the present invention.

10: plug;

20: partition;

21: dry side;

22: wet side;

23: mounting hole;

100: waterproof housing;

101: Passage;

102: wiring port;

103: perforation;

110: heat sink fins;

120: ring step surface;

130: pressure ring;

140: end cap;

141: frame;

142: screw;

200: socket assembly;

210: circuit board;

220: metal shell;

221: plug interface;

222: side opening;

230: elastic member;

231: elastic arm;

300: heat conducting plate;

301: boss;

302: groove;

303: guide slope;

310: soft thermally conductive component;

400: wire;

400a: wire;

401: welding end;

410: wire core;

420: insulating layer;

500: waterproof plug;

501: longitudinal ring rib;

502: transverse ring rib;

510: inner end;

520: outer end;

600: connector;

610: insulating seat;

620: terminal;

621: welding foot;

622: overlapping end;

623: welding tank;

623a: gap;

623b: Slope.

DETAILED DESCRIPTION

Referring to FIGS. 1 and 2 , a preferred embodiment of the present invention provides a waterproof electrical connection device for immersion heat dissipation, which is used to be installed on a partition 20 for plugging a plug 10. Specifically, the partition 20 is a part of a water tank, so one side of the partition 20 is a dry side 21 located outside the water tank, and the other side of the partition 20 is a wet side 22 located inside the water tank. A mounting hole 23 is provided on the partition 20, and the mounting hole 23 passes through the partition 20.

2 to 4 , in this embodiment, the waterproof electrical connection device of the present invention includes a waterproof housing 100 , a socket assembly 200 , a heat conducting plate 300 , at least one wire 400 and a waterproof plug 500 .

Referring to FIGS. 1 to 4 , in this embodiment, the waterproof housing 100 is preferably in the shape of a long strip and can be inserted into the mounting hole 23 on the partition 20. One end of the waterproof housing 100 has a through opening 101 and is open. The through opening 101 is located on the dry side 21 of the partition 20, and a pressure ring 130 is screwed to this end of the waterproof housing 100 to lock the waterproof housing 100 to the partition 20. The other end of the waterproof housing 100 has a wiring port 102, which is located on the wet side 22 of the partition 20. An end cap 140 is provided on the wiring port 102 to close the wiring port 102. Therefore, the interior of the waterproof housing 100 is connected to the dry side 21 of the partition 20 and is isolated from the wet side 22 of the partition 20. An annular step surface 120 is convexly provided on the inner side surface of the waterproof housing 100, and the annular step surface 120 is arranged facing the wiring port 102. A plurality of heat dissipation fins 110 are disposed on the outer surface of the waterproof housing 100 , so that the heat dissipation fins 110 are exposed on the wet side 22 of the partition plate 20 .

The socket assembly 200 is accommodated in the waterproof housing 100. The socket assembly 200 includes a circuit board 210 and at least one metal shell 220, and the metal shell 220 is attached to the circuit board 210. In this embodiment, the socket assembly 200 includes two identical metal shells 220, and the two metal shells 220 are symmetrically attached to the two sides of the circuit board 210. In the following text, only one of the metal shells 220 is used as an example to illustrate the structure of the metal shell 220. In this embodiment, the metal shell 220 is in a long strip shape, and one end of the metal shell 220 has a plug interface 221, and the side of the metal shell 220 is provided with a side opening 222. The metal shell 220 is inserted into the waterproof housing 100 and penetrates the through hole 101 of the waterproof housing 100, so that the plug interface 221 can be aligned with the through hole 101 so that the plug 10 can be plugged into the socket assembly 200 from the dry side 21 of the partition 20.

3 to 4 and 7 to 8, the heat conduction structure of the waterproof electrical connection device of the present invention is specifically described as follows:

The heat conducting plate 300 is movably attached to the outer side of the metal shell 220. One side of the heat conducting plate 300 protrudes from the inner side of the metal shell 220 through the side opening 222, and a soft heat conducting component 310 is attached to the other side of the heat conducting plate 300. In this embodiment, the soft heat conducting component 310 is a heat dissipation paste or a heat dissipation pad (thermal pad) made of a plastic material mixed with metal powder. Specifically, the heat conducting plate 300 has a boss 301, and the boss 301 protrudes from the inner side of the metal shell 220 through the side opening 222; a groove 302 is provided on the surface of the heat conducting plate 300 opposite to the boss 301, and the soft heat conducting component 310 is accommodated in the groove 302. The soft heat conducting component 310 is spaced apart from the inner side of the waterproof cover 100, so that the socket assembly 200 can be inserted into the waterproof cover 100 during assembly. The heat conducting plate 300 has a guiding slope 303 , and the guiding slope 303 is disposed on one side of the boss 301 and protrudes from the metal shell 220 , and the guiding slope 303 is disposed toward the plug-in port 221 .

Referring to FIG. 8 , when the plug 10 is inserted into the metal housing 220, the plug 10 pushes the heat conducting plate 300 via the boss 301, and the plug 10 presses against the boss 301 to be thermally connected to the heat conducting plate 300, and the guide slope 303 makes it easy for the plug 10 to push the boss 301. The heat conducting plate 300 is pushed out of the metal housing 220, so that the soft heat conducting component 310 is compressed by the heat conducting plate 300 and the waterproof cover 100, thereby making the heat conducting plate 300 thermally connected to the waterproof cover 100. Preferably, the soft heat conducting component 310 is arranged corresponding to the position of the heat dissipation fins 110, and when the plug 10 is inserted into the metal housing 220, the heat conducting plate 300 can be thermally connected to the heat dissipation fins 110.

The metal shell 220 is provided with an elastic member 230, and the elastic member 230 is connected to the heat conducting plate 300. When the plug 10 is removed, the elastic member 230 can push the heat conducting plate 300 to return to its original position. Specifically, the elastic member 230 is a metal frame 141 attached to the outside of the metal shell 220. The elastic member 230 extends an elastic arm 231, and the elastic arm 231 presses against the heat conducting plate 300 to push the heat conducting plate 300 into the metal shell 220.

3 to 6 , the electrical connection structure of the waterproof electrical connection device of the present invention is specifically described as follows:

The socket assembly 200 further includes at least one connector 600, which is disposed in the metal housing 220. In this embodiment, two connectors 600 are respectively disposed in two metal housings 220. The number of wires 400 corresponds to the number of connectors 600. One end of each wire 400 is connected to the corresponding connector 600 in the socket assembly 200 for external data exchange, and each wire 400 is electrically connected to the circuit board 210. Therefore, the circuit board 210 can use a public version and set the required connector 600 thereon, thereby saving raw material and processing costs.

3 to 6 , the waterproof structure of the waterproof electrical connection device of the present invention is specifically described as follows:

The waterproof plug 500 covers a section of the wire 400. Specifically, the waterproof plug 500 covers the connection between the wire 400 and the circuit board 210, and the waterproof plug 500 is arranged at the wiring port 102 to close the wiring port 102. The waterproof plug 500 has an inner end 510 and an outer end 520 opposite to the inner end 510. The inner end 510 of the waterproof plug 500 is disposed toward the socket assembly 200, and a longitudinal ring rib 501 is provided on the inner end 510 of the waterproof plug 500. The end cover 140 is locked with the waterproof cover 100 along the longitudinal direction of the waterproof plug 500 by screws 142 and presses the outer end 520 so that the longitudinal ring rib 501 presses against the ring step surface 120 to achieve a sealing effect. A transverse ring rib 502 is provided on the outer side of the waterproof plug 500, and the transverse ring abuts against the inner side of the waterproof cover 100 to achieve a sealing effect.

Specifically, the end cover 140 includes a plurality of frames 141, which are connected to form a through hole 103 for the waterproof plug 500 to pass through, and each frame 141 is respectively locked to the waterproof housing 100 along the longitudinal direction of the waterproof plug 500 by screws 142. Therefore, when the frames 141 are assembled, the inner edge of the through hole 103 shrinks inward and presses the outer side of the waterproof plug 500 to achieve a sealing effect.

8 , the connection structure of the connector 600 and the wire 400 is described below. In the following text, only a connector 600 and its corresponding wire 400 are used as an example for description.

9 , the connector 600 includes an insulating base 610 and a plurality of terminals 620. The insulating base 610 is an insulating block made of plastic, and the terminals 620 are embedded in the insulating base 610. Specifically, the insulating base 610 is formed and covered with the terminals 620 by a coating injection molding process.

Referring to FIG. 9 and FIG. 10 , the wire 400 includes a plurality of conductors 400a corresponding to each terminal 620. Each terminal 620 is a long strip of metal sheet, each terminal 620 has a welding foot 621 and at least one lap end 622 arranged opposite to the welding foot 621. Each welding foot 621 and the lap end 622 pass through the two sides of the insulating seat 610, the welding feet 621 are arranged in a row, and the lap ends 622 are also arranged in a row. In this embodiment, each welding foot 621 is provided with a welding groove 623, the welding groove 623 is recessed into one side of the welding foot 621 and penetrates to the other side of the welding foot 621 at the corresponding bottom of the welding groove 623. Specifically, on each solder leg 621, the solder groove 623 has a notch 623a and a slope 623b. The notch 623a is located at the bottom of the solder groove 623 and penetrates the solder leg 621. The slope 623b extends outward from the edge of the notch 623a to the surface on the opposite side of the solder groove 623. In this embodiment, each slope 623b is flat. On each solder leg 621, the solder groove 623 is formed by stamping, and the notch 623a is formed first and then the slope 623b is formed. When the slope 623b is stamped, the metal material can be squeezed into the notch 623a to prevent the metal material from being squeezed outward, causing the shape of the terminal 620 to be deformed and not conform to the predetermined size.

Referring to FIG. 11 , each wire 400a is welded to a corresponding terminal 620. Each wire 400a has a welding end 401. Each wire 400a has a core 410 and an insulating layer 420 covering the core 410. In each wire 400a, the core 410 is exposed at the welding end 401 and welded to a corresponding terminal 620. Each wire 400a is welded to a corresponding welding leg 621 with its welding end 401. Each welding end 401 is accommodated in a corresponding welding groove 623. Each wire 400a is arranged to extend longitudinally along the corresponding welding leg 621. Specifically, the diameter of each welding end 401 is smaller than the width of the corresponding notch 623a. Each welding end 401 is accommodated in a corresponding notch 623a.

Referring to another embodiment of the welding structure of the welding foot 621 and the welding end 401 shown in FIG. 12 , each slope 623b is a concave curved surface, and each welding end 401 is respectively accommodated in each corresponding notch 623a and supported on each corresponding slope 623b. In this embodiment, the diameter of each welding end 401 is greater than the width of the corresponding notch 623a and does not fall into the notch 623a of the welding groove 623. The welding groove 623 is formed by stamping, and the notch 623a is formed first and then the slope 623b is formed. When the slope 623b is stamped, the metal material can be squeezed into the notch 623a to prevent the metal material from being squeezed outward, resulting in the deformation of the terminal 620 and not meeting the predetermined size.

In the waterproof electrical connection device of the present invention, the welding foot 621 of each terminal 620 is provided with a concave welding groove 623 for accommodating the welding end 401 of the corresponding wire 400a. The welding end 401 of the wire 400a is embedded in the welding foot 621 of the corresponding terminal 620, so as to reduce the thickness of the welding structure of the welding foot 621 and the welding end 401. Compared with the welding structure of the surface of the terminal 620 where the wire 400a is directly welded to the end 401 of the wire 400a, the welding structure of the wire 400a embedded in the terminal 620 of the present invention has a lower thickness and capacitive coupling value. Therefore, the structure of the waterproof electrical connection device of the present invention effectively suppresses crosstalk interference during high-frequency signal transmission.

The above description is only the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the specification and drawings of the present invention are also included in the scope of the rights of the present invention and are hereby stated.

Claims (10)

1. A waterproof electrical connection device, comprising: A waterproof housing having a wiring port, the inner side of the waterproof housing having a ring step surface facing the wiring port, and the wiring port is covered with an end cap; A socket assembly is accommodated in the waterproof housing, and the socket assembly includes a circuit board and a connector disposed on the circuit board; At least one wire connected to the connector and passing through the wiring port and out of the waterproof housing; and A waterproof plug covers one section of the wire, the waterproof plug is arranged at the wiring port to close the wiring port, the waterproof plug has an inner end and an outer end opposite to the inner end, the inner end is arranged toward the socket assembly and a longitudinal ring rib is provided on the inner end, wherein the end cover is locked with the waterproof cover along the longitudinal direction of the waterproof plug and presses the outer end so that the longitudinal ring rib presses the ring step surface, and the waterproof plug covers the connection between the wire and the circuit board. 2. The waterproof electrical connection device according to claim 1 is characterized in that the end cover comprises a plurality of frames, which are connected to form a through hole, and when the plurality of frames are combined, the inner edge of the through hole presses against the outer side surface of the waterproof plug. 3 . The waterproof electrical connection device according to claim 2 , wherein each of the frames is locked to the waterproof cover along a longitudinal direction of the waterproof plug. 4. The waterproof electrical connection device according to claim 1, characterized in that a transverse ring rib is provided on the outer side surface of the waterproof plug, and the transverse ring rib abuts against the inner side surface of the waterproof cover. 5. The waterproof electrical connection device according to claim 1 is characterized in that the connector includes a plurality of terminals, the wire material includes a plurality of conductors, each of the conductors has a welding end, each of the conductors has a core and an insulating layer covering the core, and in each of the conductors, the core is exposed at the welding end and welded to the corresponding terminal. 6. The waterproof electrical connection device according to claim 5 is characterized in that each terminal is provided with a welding groove, each welding groove has a notch and a slope, each slope is a concave surface, and each welding end is respectively accommodated in the corresponding notch and supported on the corresponding slope. 7 . The waterproof electrical connection device according to claim 6 , wherein the diameter of each welding end is greater than the width of the corresponding notch. 8. The waterproof electrical connection device according to claim 5, characterized in that each terminal is provided with a welding groove, each welding groove has a notch and a slope, each slope is plane, and each welding end is respectively accommodated in the corresponding notch. 9 . The waterproof electrical connection device according to claim 8 , wherein a diameter of each welding end is smaller than a width of the corresponding notch. 10 . The waterproof electrical connection device according to claim 5 , wherein each of the terminals is a long strip of metal.