CN114498162A - Sealed circuit board of waterproof connector and manufacturing method thereof - Google Patents

Sealed circuit board of waterproof connector and manufacturing method thereof Download PDF

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Publication number
CN114498162A
CN114498162A CN202210178825.7A CN202210178825A CN114498162A CN 114498162 A CN114498162 A CN 114498162A CN 202210178825 A CN202210178825 A CN 202210178825A CN 114498162 A CN114498162 A CN 114498162A
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CN
China
Prior art keywords
sealing
waterproof
circuit board
sleeve
sealed
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Pending
Application number
CN202210178825.7A
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Chinese (zh)
Inventor
邓雯
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Shenzhen Haosheng Electronic Technology Co ltd
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Shenzhen Haosheng Electronic Technology Co ltd
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Application filed by Shenzhen Haosheng Electronic Technology Co ltd filed Critical Shenzhen Haosheng Electronic Technology Co ltd
Priority to CN202210178825.7A priority Critical patent/CN114498162A/en
Publication of CN114498162A publication Critical patent/CN114498162A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/205—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve with a panel or printed circuit board

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention provides a sealed circuit board of a waterproof connector and a manufacturing method thereof.A connecting terminal is positioned on the circuit board and is fixedly connected with the connector in a waterproof way; the connecting terminal and the connector of the circuit board are sealed and waterproof, the connecting shaft of the connector is compressed and waterproof and sealed by the sealing ring, the connecting terminal, the sealing cover, the connecting sleeve and the cable, the circuit board is convenient to replace and repair, the manufacturing is overall convenient, the connection is firm and reliable, the outdoor waterproof sealing effect is good, and the overall waterproof effect of the outdoor circuit board and the connecting cable is met.

Description

Sealed circuit board of waterproof connector and manufacturing method thereof
Technical Field
The invention relates to the technical field of connectors, in particular to a sealed circuit board of a waterproof connector and a manufacturing method thereof.
Background
Present open air electronic product all requires waterproofly, and especially electronic circuit board need be in outdoor use to can conveniently change at any time, but the electronic circuit board of most outdoor use is difficult to do waterproofly, and waterproof fixed connection between connector conduct cable or the electronic route board simultaneously hardly reaches both waterproof simultaneously, makes electronic product be difficult to use in the open air. And the waterproof connection of the cable and the waterproof of the circuit board have the safety problem of outdoor use, and the waterproof treatment of the connector and the electronic circuit board cannot meet the requirement. The sealing operation of the circuit board sealing and the connecting cable is troublesome, the connector is not waterproof, the water leakage condition is caused, and the safe sealing use effect of the electronic circuit board used outdoors can not be achieved.
At present, the waterproof structure of the sealing circuit board of most waterproof connectors is unreasonable, the sealing circuit board needs to be sealed and waterproof at the same time, the operation is troublesome, the assembly is not firm, the waterproof grade cannot reach the standard, the connection is unstable, the manufacture is complex, the production cost is high, and the outdoor waterproof quality effect of the electronic circuit board and the connector cannot meet the safe use requirement.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sealed circuit board of a waterproof connector and a manufacturing method thereof.
In order to solve the technical problems, the invention provides a sealed circuit board of a waterproof connector and a manufacturing method thereof, wherein the sealed circuit board comprises a circuit board and a connecting terminal, the connecting terminal is positioned on the circuit board and is fixedly connected with the connector in a waterproof mode, the circuit board is positioned in a sealing box, the sealing box is provided with a sealing cover in a sealing connection mode, the connector comprises a connecting shaft and a connecting sleeve, the axis of the connecting shaft is fixedly connected with the connecting terminal, and the connecting shaft, the sealing cover, the connecting sleeve and a cable are in waterproof connection.
The connection shaft is characterized in that a plurality of elastic grooves are uniformly formed in the front end of the connection shaft, and the periphery of the connection shaft is in interference fit with the inner wall of the connection terminal.
The elastic grooves have elasticity, the front ends of the elastic grooves are in extrusion interference fit with the connecting terminals, the connection is firm, meanwhile, the elasticity is convenient to assemble and install, and the elastic force keeps the connecting shafts and the connecting terminals in close contact fit and cannot easily fall off.
In a further scheme, the elastic groove is connected with a locking thread.
The elastic groove of the connecting shaft is connected with a locking thread, and the external thread of the locking thread is connected with the front sleeve thread of the sealing cover.
The further scheme is that a first sealing groove is formed behind one or two threads in front of the locking thread, and a first sealing ring is installed and is in sealing connection with the front sleeve of the sealing cover.
One screw thread or two screw threads in front of the locking screw thread are provided with a first sealing groove, a first sealing ring is installed and locked with the internal thread of a front sleeve of the sealing cover, the front sleeve and the sealing cover are integrally formed by stamping and are in waterproof sealing connection.
The rear end of the locking thread is provided with a second sealing groove, and a second sealing ring is mounted and used for sealing and preventing water between the connecting sleeve and the sealing cover.
And a second sealing groove is formed in the rear end of the locking thread, and a second sealing ring is installed and used for sealing, waterproof and fixed connection between the connecting sleeve and the sealing cover, so that the connecting shaft is protected, and the integral waterproof effect is achieved.
According to a further scheme, the locking thread is provided with a hollow groove corresponding to the rotating part of the front sleeve.
The locking screw thread is equipped with the fretwork groove corresponding to the rotating part of front cover, and the fretwork groove makes things convenient for the front end screw thread direction rotation of connecting axle to get into the front cover to be connected with connecting terminal, front end interference fit's extrusion strength has the clearance, reduces the effect of rotation resistance, helps extrusion locking sealing washer between connecting axle and the front cover simultaneously, plays waterproof sealing effect.
The further proposal is that a clamping ring and a wire sealing ring are arranged in the connecting sleeve.
The clamping ring is arranged in the connecting sleeve and clamps the cable outlet part to prevent the cable from being separated, and the connecting head is firmly fixed with the connecting terminal.
The further proposal is that the line sealing ring is positioned in the line sealing groove of the connecting sleeve and tightly clamps and seals the cable.
The line sealing ring is positioned in the line sealing groove of the connecting sleeve, tightly clamps the cable, and plays a role in waterproof sealing between the connecting shaft and the cable.
The sealing box is provided with a sealing groove for installing a sealing ring, and the sealing cover is tightly pressed, sealed and waterproof by screws.
The periphery of the sealing box is provided with a sealing groove, a sealing ring is installed, the sealing ring is compressed by the sealing cover and is fixed by screws, and waterproof fixation is achieved.
Further, the manufacturing method of the sealing circuit board of the waterproof connector comprises the following steps:
s01, performing PC plastic injection molding on the whole sealing box, and fixing the circuit board by using a fixing column;
s02, installing a sealing ring in a sealing groove at the edge of the sealing box, correspondingly matching the sealing cover for punching, and pressing, sealing and waterproof fixing by using screws;
s03, the middle of the front sleeve penetrates through the connecting terminal and the central shaft of the front sleeve is ensured to be coaxial with the connecting terminal by the internal thread of the front sleeve punched by the sealing cover;
s04, rotationally locking the connector and the connecting terminal, and locking the outer wall of the front elastic groove of the connecting shaft and the inner wall of the connecting terminal;
s05, locking a first sealing ring of the connecting shaft to the inner wall of the connecting terminal to enable the connecting head and the connecting terminal to be sealed and waterproof;
s06, welding and fixing the axis of the connecting shaft and the wire core of the cable, and pressing the connecting shaft with the connecting sleeve and the wire sealing ring to seal the cable in a waterproof way;
s07, rotationally pressing a second sealing ring at the front end of the connecting sleeve to connect the connecting shaft with the sealing cover in a waterproof and sealing manner;
s08, the connecting shaft and the connecting sleeve are tightly screwed and pressed by threads, the connecting shaft, the connecting terminal, the cable and the sealing cover have a sealing and waterproof effect, and a waterproof test is carried out on a sealing circuit board of the waterproof connector to reach the IP65 grade;
and S09, repeating the steps S01 to S08, and finishing the production, installation and manufacture of the sealed circuit board of the waterproof connector.
Compared with the prior art, the invention has the beneficial effects that:
1. the sealing box and the sealing cover are assembled and matched for water prevention, so that the circuit board is convenient to replace and modify, the waterproof effect is good, and the waterproof grade is more than IP 65;
2. meanwhile, the sealing cover is provided with a front sleeve which is in locking, sealing and waterproof connection with the connecting shaft of the connector, the front sleeve passes through the connecting shaft in a single direction, the sealing cover is in sealing and waterproof connection with the connecting sleeve, the connection is firm, and the waterproof effect is good;
3. the wire sealing ring of the connecting sleeve is matched with the cable in a sealing way to prevent water, so that the integral manufacturing cost is low, the operation is convenient and the connection is reliable;
4. the sealing cover is sealed and locked with the connector before punch forming, and the connector and the connecting sleeve are manufactured, so that the structure is ingenious, and the waterproof effect is good;
the connecting terminal and the connector of the electronic circuit board are sealed and waterproof, the connecting shaft of the connector is tightly pressed and waterproof and sealed by the sealing ring, the connecting terminal, the sealing cover, the connecting sleeve and the cable, the overall sealing reaches the waterproof grade, the circuit board can be conveniently replaced and repaired, the manufacturing is overall convenient, the connection is firm and reliable, the outdoor waterproof sealing effect is good, and the overall waterproof effect of the outdoor circuit board and the connecting cable is met.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of an assembly structure according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a sealing cover according to an embodiment of the present invention.
Reference numerals
1. A cable; 2. a clamping ring; 3. a wire seal ring; 4. connecting sleeves; 5. a connecting shaft; 6. A second sealing groove; 7. A first sealing groove; 8. an elastic groove; 9. a second sealing ring; 10. a first sealing ring; 11. a sealing cover; 12. a front cover; 13. a connection terminal; 14. a circuit board; 15. a third sealing ring; 16. a third sealing groove; 17. a sealing box; 18. fixing a column; 19. and (6) hollowing out the groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a sealed circuit board of a waterproof connector and a manufacturing method thereof according to an embodiment of the present invention includes a circuit board 14 and a connecting terminal 13, the connecting terminal 13 is located on the circuit board 14, the connecting terminal 13 is fixedly connected with the connector in a waterproof manner, the circuit board 14 is located in a sealing box 17, the sealing box 17 is provided with a sealing cover 11 in a sealing manner, the connector includes a connecting shaft 5 and a connecting sleeve 4, an axis of the connecting shaft 5 is fixedly connected with the connecting terminal 13, and the connecting shaft 5, the sealing cover 11, the connecting sleeve 4 and a cable 1 are connected in a waterproof manner.
Further, a plurality of elastic grooves 8 are uniformly formed in the front end of the connecting shaft 5, and the outer periphery of the elastic grooves is in interference fit with the inner wall of the connecting terminal 13.
A plurality of elastic grooves 8 have elasticity, and this embodiment is six even elastic grooves 8, and elastic groove 8's front end and connecting terminal 13 extrusion interference fit, firm in connection, elasticity facilitates the assembly installation simultaneously, and elasticity keeps connecting axle 5 and connecting terminal 13 in close contact with the cooperation, can not drop easily.
Further, the elastic groove 8 is connected with a locking thread.
The elastic groove 8 of the connecting shaft 5 is connected with a locking thread, and the external thread of the locking thread is in threaded connection with the front sleeve 12 of the sealing cover 11.
Furthermore, a first sealing groove 7 is formed in front of the locking thread and behind one or two threads, and a first sealing ring 10 is installed and is connected with a front sleeve 12 of a sealing cover 11 in a sealing mode.
One screw thread or two screw threads in front of the locking screw thread are provided with a first sealing groove 7, a first sealing ring 10 is installed and locked with the internal thread of a front sleeve 12 of the sealing cover 11, and the front sleeve 12 and the sealing cover 11 are integrally formed by stamping and are in waterproof sealing connection.
Furthermore, a second sealing groove 6 is formed in the rear end of the locking thread, and a second sealing ring 9 is installed and used for sealing and preventing water between the connecting sleeve 4 and the sealing cover 11.
The rear end of the locking thread is provided with a second sealing groove 6, and a second sealing ring 9 is installed and used for sealing, waterproof and fixed connection between the connecting sleeve 4 and the sealing cover 11 to protect the connecting shaft 5, so that the overall waterproof effect is achieved.
Further, the locking thread is provided with a hollowed-out groove 19 corresponding to the rotary part of the front cover 12.
Locking thread corresponds the rotating part of front cover 12 and is equipped with fretwork groove 19, and fretwork groove 19 makes things convenient for the front end screw thread direction rotation entering front cover 12 of connecting axle 5 to be connected with connecting terminal 13, front end interference fit's extrusion strength has the sky of keeping away, reduces the effect of rotatory resistance, helps extrudeing the locking sealing washer between connecting axle 5 and the front cover 12 simultaneously, plays waterproof sealing effect.
Furthermore, a clamping ring 2 and a wire sealing ring 3 are arranged in the connecting sleeve 4.
The clamping ring 2 is arranged in the connecting sleeve 4, the part of the cable 1 which is connected out is clamped by the clamping ring 2, the cable 1 is prevented from being separated, and the connector is firmly fixed with the connecting terminal 13.
Further, the wire sealing ring 3 is located in the wire sealing groove of the connecting sleeve 4 and clamps the sealed cable 1 tightly.
The line sealing ring 3 is positioned in a line sealing groove of the connecting sleeve 4, tightly clamps the cable 1 and has a waterproof sealing effect between the connecting shaft 5 and the cable 1.
Further, the sealing box 17 is provided with a sealing groove for installing a sealing ring, and is tightly pressed, sealed and fixed with the sealing cover 11 by screws in a waterproof manner.
And a third sealing groove 16 is formed around the sealing box 17, a third sealing ring 15 is installed, the third sealing ring 15 is pressed tightly by the sealing cover 11 and is fixed by screws, so that waterproof fixation is realized.
Further, the manufacturing method of the sealing circuit board 14 of the waterproof connector comprises the following steps:
s01, the sealing box 17 is integrally molded by PC plastic injection, and is provided with fixing columns 18 for fixing the electronic circuit board 14;
s02, mounting a third sealing ring 15 in a third sealing groove 16 at the edge of the sealing box 17, correspondingly matching with the sealing cover 11 for punching, and pressing, sealing and waterproof fixing by using screws;
s03, the sealing cover 11 is punched to form internal threads of the front sleeve 12, the middle of the front sleeve 12 penetrates through the connecting terminal 13, and the central axis of the front sleeve 12 is ensured to be coaxial with the connecting terminal 13;
s04, rotationally locking the connector and the connecting terminal 13, and locking the outer wall of the front elastic groove 8 of the connecting shaft 5 and the inner wall of the connecting terminal 13;
s05, locking the first sealing ring 10 of the connecting shaft 5 to the inner wall of the connecting terminal 13, and sealing the connecting head and the connecting terminal 13 for water proofing;
s06, welding and fixing the axis of the connecting shaft 5 and the wire core of the cable 1, and pressing the connecting shaft 5 to the cable 1 for waterproof sealing by using the connecting sleeve 4 and the wire sealing ring 3;
s07, the front end of the connecting sleeve 4 rotates to press the second sealing ring 9, and the connecting shaft 5 is connected with the sealing cover 11 in a waterproof and sealing manner;
s08, the connecting shaft 5 and the connecting sleeve 4 are tightly screwed and pressed by threads, the connecting shaft, the cable 1 and the sealing cover 11 have a sealing and waterproof effect, and a sealing circuit board 14 of the waterproof connector is subjected to a waterproof test to reach the IP65 grade;
and S09, repeating the steps S01 to S08, and finishing the production, installation and manufacture of the sealed circuit board 14 of the waterproof connector.
Compared with the prior art, the invention has the beneficial effects that:
1. the sealing box 17 and the sealing cover 11 are assembled and matched for water prevention, so that the circuit board 14 is convenient to replace and modify, and the waterproof effect is good and is more than the waterproof grade IP 65;
2. meanwhile, the front sleeve 12 arranged on the sealing cover 11 is in locking, sealing and waterproof connection with the connecting shaft 5 of the connector, and the sealing cover 11 and the connecting sleeve 4 are in sealing and waterproof connection in a one-way manner, so that the connection is firm and the waterproof effect is good;
3. the wire sealing ring 3 of the connecting sleeve 4 is matched with the cable 1 in a sealing way to prevent water, so that the manufacturing cost is low, the operation is convenient and the connection is reliable;
4. the sealing cover 11 is punched and formed to form the front sleeve 12 and the connector to be sealed and locked, and the manufacturing method of the connector and the connecting sleeve 4 has the advantages of ingenious structure and good waterproof effect;
according to the invention, the connecting terminal 13 of the electronic circuit board 14 and the connector are sealed and waterproof, the connecting shaft 5 of the connector is tightly pressed and waterproof-sealed with the connecting terminal 13, the sealing cover 11, the connecting sleeve 4 and the cable 1 by the sealing ring, the overall sealing reaches the waterproof grade, the circuit board 14 can be conveniently replaced and repaired, the overall manufacture is overall convenient, the connection is firm and reliable, the outdoor waterproof sealing effect is good, and the overall waterproof effect of the outdoor circuit board 14 and the connecting cable 1 is met.
The above description is only a preferred embodiment of the present patent, and not intended to limit the scope of the present patent, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, and which are directly or indirectly applied to other related technical fields, belong to the scope of the present patent protection.

Claims (10)

1. Including circuit board and connecting terminal, connecting terminal is located on the circuit board, connecting terminal and the waterproof fixed connection of connector, the circuit board is located the sealing box, sealing box sealing connection is equipped with sealed lid, the connector includes connecting axle and adapter sleeve, the connecting axle sealed lid adapter sleeve and cable waterproof connection.
2. The sealing circuit board of waterproof connector according to claim 1, wherein the front end of the connecting shaft is uniformly provided with a plurality of elastic grooves, and the outer periphery of the elastic grooves is in interference fit with the inner wall of the connecting terminal.
3. The sealed wiring board of waterproof connector according to claim 2, wherein said elastic groove is connected with a locking thread.
4. The sealing circuit board of waterproof connector according to claim 3, wherein a first sealing groove is provided behind one or two threads in front of the locking thread, and a first sealing ring is mounted to be connected with the front sleeve of the sealing cover in a sealing manner.
5. The sealing circuit board of waterproof connector according to claim 3, wherein a second sealing groove is formed at the rear end of the locking thread, and a second sealing ring is installed for sealing and waterproofing between the connecting sleeve and the sealing cover.
6. The sealed wiring board of waterproof connector according to claim 3, wherein the locking thread has a hollow groove corresponding to the rotation portion of the front cover.
7. The sealed wiring board of waterproof connector according to claim 1, wherein a clamping ring and a wire sealing ring are provided in the connecting sleeve.
8. The sealed wiring board of claim 7, wherein the wire sealing ring is located in the wire sealing groove of the connecting sleeve and tightly seals the cable.
9. The sealed circuit board of waterproof connector according to claim 1 or 3, wherein the sealing box is provided with a sealing groove for installing a sealing ring, and the sealing box is tightly pressed and sealed with the sealing cover by a screw for waterproof fixation.
10. The manufacturing method of the sealing circuit board of waterproof connector according to claim 1 to 9,
the manufacturing method of the sealing circuit board of the waterproof connector comprises the following steps:
s01, performing PC plastic injection molding on the whole sealing box, and fixing the circuit board by using a fixing column;
s02, installing a sealing ring in a sealing groove at the edge of the sealing box, correspondingly matching the sealing cover for punching, and pressing, sealing and waterproof fixing by using screws;
s03, the middle of the front sleeve penetrates through the connecting terminal and the central shaft of the front sleeve is ensured to be coaxial with the connecting terminal by the internal thread of the front sleeve punched by the sealing cover;
s04, rotationally locking the connector and the connecting terminal, and locking the outer wall of the front elastic groove of the connecting shaft and the inner wall of the connecting terminal;
s05, locking a first sealing ring of the connecting shaft to the inner wall of the connecting terminal to enable the connecting head and the connecting terminal to be sealed and waterproof;
s06, welding and fixing the axis of the connecting shaft and the wire core of the cable, and pressing the connecting shaft with the connecting sleeve and the wire sealing ring to seal the cable in a waterproof way;
s07, rotationally pressing a second sealing ring at the front end of the connecting sleeve to connect the connecting shaft with the sealing cover in a waterproof and sealing manner;
s08, the connecting shaft and the connecting sleeve are tightly screwed and pressed by threads, the connecting shaft, the connecting terminal, the cable and the sealing cover have a sealing and waterproof effect, and a waterproof test is carried out on a sealing circuit board of the waterproof connector to reach the IP65 grade;
and S09, repeating the steps S01 to S08, and finishing the production, installation and manufacture of the sealed circuit board of the waterproof connector.
CN202210178825.7A 2022-02-25 2022-02-25 Sealed circuit board of waterproof connector and manufacturing method thereof Pending CN114498162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210178825.7A CN114498162A (en) 2022-02-25 2022-02-25 Sealed circuit board of waterproof connector and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210178825.7A CN114498162A (en) 2022-02-25 2022-02-25 Sealed circuit board of waterproof connector and manufacturing method thereof

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Publication Number Publication Date
CN114498162A true CN114498162A (en) 2022-05-13

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CN212934952U (en) * 2020-10-25 2021-04-09 唐山平升电子技术开发有限公司 Waterproof type radio frequency coaxial connector quick-operation joint
CN215645994U (en) * 2021-07-11 2022-01-25 上海容贝实业有限公司 Explosion-proof junction box with dampproofing function

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CN212519726U (en) * 2020-08-15 2021-02-09 蓝成勇 Sealing structure of circuit board and induction cooker
CN212934952U (en) * 2020-10-25 2021-04-09 唐山平升电子技术开发有限公司 Waterproof type radio frequency coaxial connector quick-operation joint
CN215645994U (en) * 2021-07-11 2022-01-25 上海容贝实业有限公司 Explosion-proof junction box with dampproofing function

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