CN213242948U

CN213242948U - Waterproof and anti-corrosion connecting terminal

Info

Publication number: CN213242948U
Application number: CN202022481778.2U
Authority: CN
Inventors: 凌国晴; 栾进; 周岷; 杨秀峰; 向卫
Original assignee: Kunshan Yuanshun Electronic Technology Co ltd
Current assignee: Kunshan Yuanshun Electronic Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-05-18
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a connecting terminal discloses a waterproof anticorrosion connecting terminal, pull out plug terminal and fixed terminal including the wiring, the wiring is pulled out plug terminal and is included the sealed head of connecting wire and pulls out the insertion part, pull out the insertion part and include the wire connector, switch on main part and evagination elasticity portion, wire connector and evagination elasticity portion set up respectively at the upper and lower both ends that switch on the main part, it is provided with the seal connection cover to switch on the main part surface, be provided with the elastic seal hole that supplies the wire to pass on the connecting wire sealed head, the sealed head of connecting wire and the upper end sealing connection of seal connection cover, the inside and the outside of fixed terminal are provided with electrically conductive cavity and insulating seal cover respectively, evagination elasticity portion contact is inserted in electrically conductive cavity, the upper end of insulating seal cover and the lower. The connecting contact part is sealed completely, so that the waterproof and corrosion-proof effects can be effectively achieved, and the service life of the connecting terminal can be effectively prolonged.

Description

Waterproof and anti-corrosion connecting terminal

Technical Field

The utility model relates to a connecting terminal, in particular to waterproof anticorrosion connecting terminal.

Background

The wiring terminal is gradually and widely applied to various fields, plays a role in connection in the aspects of transmitting electric signals and conducting electricity, thereby reducing the consumption of workload and production cost, bringing convenience to production and use and avoiding a lot of troubles. Under a plurality of complex working conditions, the long-time exposure of the connecting bit of the metal part of the connecting terminal can cause pollution and corrosion of the terminal, the service life of the terminal is influenced, the function of conducting or transmitting signals of the corroded terminal is obviously weakened after the terminal is used for a certain time, the electronic equipment in use is negatively influenced, the terminal is easy to rust when being overhauled and plugged, and physical damage is generated in the plugging and unplugging process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a waterproof anticorrosion connecting terminal.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a waterproof anticorrosion connecting terminal, pulls out plug terminal and fixed terminal including the wiring, the wiring is pulled out plug terminal and is included the sealed head of connecting wire and pulls out plug part, pull out plug part and include the wire connector, switch on main part and evagination elasticity portion, wire connector and evagination elasticity portion set up respectively at the upper and lower both ends that switch on the main part, it is provided with the seal connection cover to switch on the main part surface, be provided with the elastic seal hole that supplies the wire to pass on the connecting wire sealed head, the sealed head of connecting wire and the upper end sealing connection of seal connection cover, the inside and the outside of fixed terminal are provided with electrically conductive cavity and insulating seal cover respectively, the contact of evagination elasticity portion is inserted in electrically conductive cavity, the upper end of insulating seal cover. The connecting contact part is sealed completely, so that the waterproof and corrosion-proof effects can be effectively achieved, and the service life of the connecting terminal can be effectively prolonged.

Further, the method comprises the following steps: the connecting wire sealing head comprises a sealing shell and an elastic sealing wire pressing sleeve, the sealing shell is cylindrical, a shell thread is arranged on the inner ring face of the lower end of the sealing shell, the elastic sealing wire pressing sleeve is fixed on the inner ring face of the upper end of the sealing shell, a penetrating wire pressing cavity is arranged inside the elastic sealing wire pressing sleeve, and the diameters of two ends of the wire pressing cavity are larger than those of the middle part of the elastic sealing wire pressing sleeve. The lead access part is effectively sealed, and oxidation corrosion caused by water leakage or pollution of the lead access part is prevented.

Further, the method comprises the following steps: the upper end of the sealing connecting sleeve is provided with a connecting sleeve thread matched with the shell thread, and an annular sealing ring is arranged below the connecting sleeve thread on the sealing connecting sleeve. The lead access part is sealed and protected, and oxidation corrosion caused by water leakage or pollution of the lead access part is prevented.

Further, the method comprises the following steps: be provided with the fixed cover of elasticity on the lower part surface of seal connection cover, it has a plurality of outside first cambered surface annular of level to arrange in proper order on the surface of the fixed cover of elasticity about protruding for elastic waterproof material makes, it has a plurality of inside second cambered surface annular of level to arrange in proper order on the internal surface about the upper end of insulating seal cover about protruding, the bellied external diameter of first cambered surface annular is less than the internal diameter of insulating seal cover upper end, the bellied internal diameter of second cambered surface annular is greater than the external diameter of the fixed cover of elasticity, the bellied external diameter of first cambered surface annular is greater than the bellied internal diameter of second cambered surface annular. The plugging and unplugging connecting part is effectively sealed, so that the oxidation corrosion caused by water leakage or pollution of the plugging and unplugging part is prevented, and the plugging and unplugging part is more stable and is not easy to fall off.

Further, the method comprises the following steps: the cavity between the lower part of the second cambered surface annular protrusion in the insulating sealing sleeve and the upper end of the fixed terminal is composed of a cylindrical cavity and an arc-shaped cavity, the diameter of the upper end of the arc-shaped cavity is the same as that of the cylindrical cavity, the diameter of the lower end of the arc-shaped cavity is the same as that of the conductive cavity, the minimum effective elastic diameter of the outward-protruding elastic part is smaller than that of the cylindrical cavity, the natural elastic diameter of the outward-protruding elastic part is larger than that of the conductive cavity, and the diameter of the cylindrical cavity is smaller than that of the conductive cavity. Effective spacing, prevent to connect the position to drop.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view of a wire connecting plug terminal;

FIG. 3 is a cross-sectional view of the fixed terminal;

FIG. 4 is a schematic cross-sectional view of a wire bond sealing head;

fig. 5 is a schematic cross-sectional view of the pluggable unit.

Labeled as: the wire connection sealing structure comprises a wire connection sealing head 110, a sealing shell 111, an elastic sealing wire pressing sleeve 112, a shell thread 113, a plug-in component 120, a wire connecting head 121, a first conduction main body 122, a convex elastic part 123, a sealing connecting sleeve 130, a connecting sleeve thread 131, an annular sealing ring 132, an elastic fixing sleeve 140, a first cambered annular protrusion 141, a fixed terminal 200, a conductive cavity 210, an insulating sealing sleeve 220, a second cambered annular protrusion 221, a cylindrical cavity 222 and an arc-shaped cavity 223.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

On the basis of the above, as shown in fig. 1 and fig. 2, comprises a wire plugging terminal and a fixed terminal 200, the connection plug terminal comprises a connection wire sealing head 110 and a plug part 120, the plug part 120 comprises a wire connector 121, a conduction main body 122 and a convex elastic part 123, the wire connecting head 121 and the convex elastic part 123 are respectively disposed at the upper and lower ends of the conductive main body 122, the outer surface of the conduction main body 122 is provided with a sealing connection sleeve 130, the connection line sealing head 110 is provided with an elastic sealing hole for a lead to pass through, the connecting wire sealing head 110 is hermetically connected with the upper end of the sealing connection sleeve 130, the inside and the outside of the fixed terminal 200 are respectively provided with a conductive cavity 210 and an insulating sealing sleeve 220, the convex elastic part 123 is inserted into the conductive cavity 210 in a contact manner, and the upper end of the insulating sealing sleeve 220 is connected with the lower end of the sealing connecting sleeve 130 in a sealing manner. In practical implementation and use, the wire connector 121, the conduction main body 122 and the outward-protruding elastic part 123 are of an integral structure and are not easy to damage in use; the lead connector 121 is a lead welding ring, the lead is welded on the lead connector 121 by penetrating through the elastic sealing hole on the connecting wire sealing head 110, then the connecting wire sealing head 110 is moved to be fixed at the upper end of the sealing connecting sleeve 130, at the moment, the elastic sealing hole is pressed on the lead, the connecting wire sealing head 110 is sealed with the upper end of the sealing connecting sleeve 130, the lead access part realizes sealing wiring, the operation is simple, and the subsequent replacement of the connecting lead is convenient; the lead connector 121 may also be a press piece for pressing and welding the lead; the lower end of the fixed terminal 200 is fixed on the electronic equipment, when the connection plug terminal and the fixed terminal 200 are connected, the convex elastic part 123 of the plug part 120 is inserted into the conductive cavity 210, the lower end of the sealing connecting sleeve 130 is sealed with the upper end of the insulating sealing sleeve 220, namely, the sealing of the plug part is realized, the connection contact part is completely sealed, the waterproof and anti-corrosion effects can be effectively achieved, and the service life of the connection terminal is effectively prolonged.

On the basis, as shown in fig. 4, the connecting wire sealing head 110 includes a sealing housing 111 and an elastic sealing wire pressing sleeve 112, the sealing housing 111 is cylindrical, a housing thread 113 is disposed on an inner annular surface of a lower end of the sealing housing 111, the elastic sealing wire pressing sleeve 112 is fixed on the inner annular surface of an upper end of the sealing housing 111, a penetrating wire pressing cavity is disposed inside the elastic sealing wire pressing sleeve 112, and diameters of two ends of the wire pressing cavity are greater than that of a middle portion of the wire pressing cavity. In a specific implementation, the elastic sealing wire pressing sleeve 112 is made of an elastic rubber material, a wire pressing cavity with large diameters at two ends and small diameter at the middle part, namely an elastic sealing hole, is arranged at the middle part of the elastic sealing wire pressing sleeve 112, after a wire passes through the elastic sealing hole, the inner side of the elastic sealing wire pressing sleeve 112 is pressed outwards by the wire, the inner side of the elastic sealing wire pressing sleeve 112 is tightly pressed together with the wire, so that dust, water and other pollutants can be effectively prevented from polluting the inner metal part of the terminal from the connection part of the wire, the connection part of the wire is effectively sealed, and the water leakage or oxidation corrosion caused by pollution at the connection part of the wire is prevented.

On the basis, as shown in fig. 2, a connecting sleeve thread 131 matched with the housing thread 113 is arranged at the upper end of the sealing connecting sleeve 130, and an annular sealing ring 132 is arranged below the connecting sleeve thread 131 on the sealing connecting sleeve 130.

In specific implementation, the upper end of the sealing connecting sleeve 130 is an inwardly recessed annular surface, the connecting sleeve thread 131 is arranged on the annular surface, the annular sealing ring 132 is arranged at the lower end of the annular surface, when the connecting wire sealing head 110 is fixed at the upper end of the sealing connecting sleeve 130, the shell thread 113 in the sealing shell 111 of the connecting wire sealing head 110 is screwed on the connecting sleeve thread 131 at the upper end of the sealing connecting sleeve 130, the lower end of the sealing shell 111 is pressed on the annular sealing ring 132, sealing is tight, dust, water and other pollutants can be effectively prevented from polluting the internal metal part of the terminal from the connecting part of the lead, sealing protection is performed on the connecting part of the lead, and water leakage or oxidation corrosion caused by pollution at the connecting part of the lead is prevented.

On the basis, as shown in fig. 3 and 5, an elastic fixing sleeve 140 is arranged on the outer surface of the lower portion of the sealing connection sleeve 130, a plurality of first arc-shaped annular protrusions 141 which are horizontally outward are sequentially arranged on the outer surface of the elastic fixing sleeve 140 in the up-down direction, the first arc-shaped annular protrusions 141 are made of an elastic waterproof material, a plurality of second arc-shaped annular protrusions 221 which are horizontally inward are sequentially arranged on the inner surface of the upper end of the insulating sealing sleeve 220 in the up-down direction, the outer diameter of the first arc-shaped annular protrusions 141 is smaller than the inner diameter of the upper end of the insulating sealing sleeve 220, the inner diameter of the second arc-shaped annular protrusions 221 is larger than the outer diameter of the elastic fixing sleeve 140, and the outer diameter of the first arc-shaped annular protrusions 141 is larger.

After the process of inserting the convex elastic part 123 of the plugging part 120 into the conductive cavity 210, the first arc annular protrusion 141 contacts with the second arc annular protrusion 221 in a staggered manner, because the outer diameter of the first arc annular protrusion 141 is larger than the inner diameter of the second arc annular protrusion 221, and the first arc annular protrusion 141 is made of an elastic waterproof material, the first arc annular protrusion 141 and the second arc annular protrusion 221 are inserted in an elastic contact manner, after the plugging, the first arc annular protrusion 141 and the second arc annular protrusion 221 contact in a staggered and elastic compression manner, the plugging is convenient and the contact is tight and tight, the contact is also stable, the plugging part is not easy to move and slip, the plugging part is effectively sealed, the oxidation corrosion caused by water leakage or pollution of the plugging part is prevented, and the plugging part is more stable and is not easy to fall off. The first cambered surface annular bulge 141 is made of waterproof elastic rubber material, and can also be made of other elastic materials with waterproof and anti-corrosion effects; the second arc-shaped annular protrusion 221 is made of a non-elastic insulating material integrated with the insulating sealing sleeve 220, or may be made of a single elastic material with a waterproof and anti-corrosion effect and then fixed on the inner side of the upper end of the insulating sealing sleeve 220.

On the basis of the above, as shown in fig. 4 and 5, a cavity between the lower part of the second arc-shaped annular protrusion 221 in the insulating sealing boot 220 and the upper end of the fixed terminal 200 is composed of a cylindrical cavity 222 and an arc-shaped cavity 223, the diameter of the upper end of the arc-shaped cavity 223 is the same as that of the cylindrical cavity 222, the diameter of the lower end of the arc-shaped cavity 223 is the same as that of the conductive cavity 210, the minimum effective elastic diameter of the convex elastic part 123 is smaller than that of the cylindrical cavity 222, the natural elastic diameter of the convex elastic part 123 is larger than that of the conductive cavity 210, and the diameter of the cylindrical cavity 222 is smaller than that of the conductive cavity 210. In specific implementation, the outward convex elastic part 123 is a common terminal banana head male elastic part, the outward convex elastic part 123 of the plug part 120 is inserted into the conductive cavity 210, the outward convex elastic part 123 is firstly pressed by the cylindrical cavity 222 to be contracted inwards, after entering the conductive cavity 210 from the arc-shaped cavity 223 through the cylindrical cavity 222, the outward convex elastic part 123 is gradually bounced, after the outward convex elastic part 123 of the plug part 120 is inserted into the conductive cavity 210, the outward convex elastic part 123 is bounced outwards to be in elastic pressing contact with the conductive cavity 210, the contact is sufficient, the conductivity is good, the arc-shaped cavity 223 applies oblique downward force to the outward convex elastic part 123, and the closing design of the arc-shaped cavity 223 can effectively prevent the outward convex elastic part 123 from slipping off. Effective spacing, prevent to connect the position to drop.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a waterproof anticorrosion connecting terminal, pulls out insert terminal and fixed terminal (200) including the wiring, its characterized in that: the wiring plug terminal comprises a connecting wire sealing head (110) and a plug component (120), the plug-pull part (120) comprises a lead connector (121), a conduction main body (122) and an outer convex elastic part (123), the wire connector (121) and the convex elastic part (123) are respectively arranged at the upper end and the lower end of the conducting main body (122), the outer surface of the conduction main body (122) is provided with a sealing connecting sleeve (130), the connecting wire sealing head (110) is provided with an elastic sealing hole for a lead to pass through, the connecting wire sealing head (110) is connected with the upper end of the sealing connecting sleeve (130) in a sealing way, the fixed terminal (200) is internally and externally provided with a conductive cavity (210) and an insulating sealing sleeve (220) respectively, the convex elastic part (123) is inserted into the conductive cavity (210) in a contact mode, and the upper end of the insulating sealing sleeve (220) is connected with the lower end of the sealing connecting sleeve (130) in a sealing mode.

2. The waterproof and anticorrosive connection terminal according to claim 1, characterized in that: the connecting wire sealing head (110) comprises a sealing shell (111) and an elastic sealing wire pressing sleeve (112), the sealing shell (111) is cylindrical, a shell thread (113) is arranged on the inner ring surface of the lower end of the sealing shell (111), the elastic sealing wire pressing sleeve (112) is fixed on the inner ring surface of the upper end of the sealing shell (111), a penetrating wire pressing cavity is arranged inside the elastic sealing wire pressing sleeve (112), and the diameters of the two ends of the wire pressing cavity are larger than those of the middle part of the elastic sealing wire pressing sleeve.

3. The waterproof and anticorrosive connection terminal according to claim 2, characterized in that: the upper end of the sealing connecting sleeve (130) is provided with a connecting sleeve thread (131) matched with the shell thread (113), and an annular sealing ring (132) is arranged below the connecting sleeve thread (131) on the sealing connecting sleeve (130).

4. The waterproof and anticorrosive connection terminal according to claim 3, characterized in that: be provided with fixed cover of elasticity (140) on the lower part surface of seal connection cover (130), it has a plurality of levels outside first cambered surface annular bulge (141) to arrange in proper order on the surface upper and lower direction of fixed cover of elasticity (140), first cambered surface annular bulge (141) are made for elastic waterproof material, it has a plurality of levels inside second cambered surface annular bulge (221) to arrange in proper order on the internal surface upper and lower direction of the upper end of insulating seal cover (220), the external diameter of first cambered surface annular bulge (141) is less than the internal diameter of insulating seal cover (220) upper end, the internal diameter of second cambered surface annular bulge (221) is greater than the external diameter of fixed cover of elasticity (140), the external diameter of first cambered surface annular bulge (141) is greater than the internal diameter of second cambered surface annular bulge (221).

5. The waterproof and anticorrosive connection terminal according to claim 1, characterized in that: the cavity between the lower part of the second cambered annular protrusion (221) in the insulating sealing sleeve (220) and the upper end of the fixed terminal (200) is composed of a cylindrical cavity (222) and an arc-shaped cavity (223), the diameter of the upper end of the arc-shaped cavity (223) is the same as that of the cylindrical cavity (222), the diameter of the lower end of the arc-shaped cavity (223) is the same as that of the conductive cavity (210), the minimum effective elastic diameter of the convex elastic part (123) is smaller than that of the cylindrical cavity (222), the natural elastic diameter of the convex elastic part (123) is larger than that of the conductive cavity (210), and the diameter of the cylindrical cavity (222) is smaller than that of the conductive cavity (210).