CN117353097A

CN117353097A - Connector terminal structure

Info

Publication number: CN117353097A
Application number: CN202311656338.8A
Authority: CN
Inventors: 刘学文; 郑小伟
Original assignee: HOKY PRECISION COMPONENTS (SHENZHEN) Ltd
Current assignee: HOKY PRECISION COMPONENTS (SHENZHEN) Ltd
Priority date: 2023-12-05
Filing date: 2023-12-05
Publication date: 2024-01-05
Anticipated expiration: 2043-12-05
Also published as: CN117353097B

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a connector terminal structure, which comprises a terminal conductor, wherein an inserting circular groove is formed in the end part of the terminal conductor, two insulating heat conducting columns are inserted into the groove wall of the inserting circular groove, two groups of arc-shaped pressing blocks are arranged in the inserting circular groove and are staggered at intervals, a pressing mechanism is arranged on each of the two insulating heat conducting columns, and the pressing mechanism is used for pressing one group of arc-shaped pressing blocks on the same side. The invention can greatly increase the connection stability of the lead, prevent the phenomenon of loosening the lead, synchronously seal the lead and the terminal conductor when the lead conductor is crimped and fixed, automatically prompt the failure of the seal between the terminal and the lead, automatically remind people when the terminal structure is abnormally warmed up due to impurities, facilitate people to timely process hidden danger, and ensure the transmission quality and stability of the circuit.

Description

Connector terminal structure

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a connector terminal structure.

Background

The connector is mainly used for connecting different parts of a circuit, an electrical device or an electronic device so as to realize power transmission, signal transmission or data transmission, the terminal is one of important components in the connector, and a connecting cable of an external device is connected to the connector through the terminal.

At present, there are various connector terminal structures, such as a common press-connection type terminal, and the press-connection type terminal structure can be subdivided into screw press-connection, tool press-connection, elastic press-connection and the like, wherein the screw press-connection is to press-connect a wire inside the terminal through a screw fit press-connection block, the tool press-connection is to press-fix the terminal and a conductor part of the wire together through a tool (such as pliers) after the wire is placed inside the terminal, and the spring press-connection is to elastically press-fix the wire through an elastic metal sheet and the like, such as the terminal structure and the electric connector disclosed in patent publication number CN111600153 a;

when connecting a cable with a connector terminal, it is common practice to insert a conductor portion of a wire into a jack of the terminal, and then fix the conductor inside the terminal by a crimp fixing structure of the terminal, but the conventional tool-crimped terminal structure is inconvenient for separating the terminal from the wire, and is inconvenient for maintenance, and the crimp force of the conventional tool-crimped terminal structure is usually perpendicular to the axis of the conductor, and the conductor material of the wire is relatively soft (such as copper and aluminum), so that in daily work, once the wire is subjected to horizontal tension, the connection between the wire and the terminal is easy to loose, and meanwhile, the connection between the terminal and the wire is generally not subjected to sealing treatment (mainly relies on a sealing member on a connector housing to seal and protect the terminal), and once the contact surface of the terminal and the conductor of the wire is polluted by dust, water vapor and the like, poor contact of a circuit is caused, and transmission quality and stability of the circuit are affected.

Disclosure of Invention

An object of the present invention is to provide a connector terminal structure, which aims at the above problems.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a connector terminal structure, includes the terminal conductor, peg graft the circular slot has been seted up to the tip of terminal conductor, peg graft the cell wall in circular slot and peg graft and have two insulating heat conduction posts, peg graft the inside in circular slot and be provided with two sets of arc crimping pieces, and two sets of arc crimping pieces are mutual interval stagger setting, two insulating heat conduction post all installs roof pressure mechanism, roof pressure mechanism be used for pushing a set of arc crimping pieces of homonymy, two the equal fixed mounting of lateral wall in insulating heat conduction post one side in opposite directions has the bar conductor, and two bar conductors all contact with the cell wall in grafting circular slot, peg graft the inside in circular slot and be provided with the insulating ring, and insulating ring fixed mounting is between two insulating heat conduction posts, seal assembly is installed to inside in the insulating ring, two roof pressure mechanism all installs pneumatic pushing mechanism, pneumatic pushing mechanism is used for inflating seal assembly, two insulating heat conduction post all installs indicating mechanism, and two indicating mechanism all are linked together with homonymy seal assembly, and indicating mechanism is used for indicating that two inside heat conduction post are carried out the equal fixed mounting of heat conduction post and indicate that the phenomenon is used for the unusual air pressure prompt assembly.

Preferably, the two jacking mechanisms all include set up in the inside a set of cavity of insulating heat conduction post, each the inside equal sliding connection of cavity has the oblique jacking piece, each the equal fixed mounting of lateral wall of arc crimping piece has insulating jacking post, and insulating jacking post and the lateral wall sliding connection of homonymy strip conductor and cavity, the tip fixed mounting of insulating jacking post has the sideslip piece, the slope spout has been seted up to the hypotenuse of oblique jacking piece, and sideslip piece and slope spout sliding connection, each the connecting rod has been pegged graft jointly to the oblique jacking piece, square groove has been seted up to the tip of insulating heat conduction post, and connecting rod and square groove's tank bottom sliding connection.

Preferably, the sealing assembly comprises an annular groove formed in the inner wall of the insulating ring, and a sealing film sleeve is packaged in a notch of the annular groove.

Preferably, the two air pushing mechanisms comprise piston blocks fixedly mounted on the rod ends of the connecting rods, the piston blocks are arranged in the square grooves in a sliding mode, air inlet channels are formed in the groove walls of the square grooves, and the square grooves are communicated with the annular grooves through the air inlet channels.

Preferably, the two indicating mechanisms comprise heat insulation blocks fixedly mounted on the outer side wall of the insulating ring, an air groove is formed in the heat insulation blocks, an air top piston is further arranged in the air groove, communication holes are commonly formed in the air groove and the groove wall of the annular groove, a transparent column is fixedly mounted at the end part of the air top piston, the transparent column is slidably connected with the groove opening of the air groove, and an elastic frame pad is fixedly connected between the air top piston and the air groove.

Preferably, the two heat conduction prompt components comprise heat conduction rods fixedly inserted into the end face of the air top piston, the end parts of the insulating heat conduction columns are provided with heat conduction grooves, the inside of the transparent columns is hollow, one ends of the heat conduction rods extend to the inside of the heat conduction grooves, the other ends of the heat conduction rods extend to the inside of the transparent columns, and the inside of the transparent columns is filled with thermochromic powder.

Preferably, locking blocks are fixedly arranged at the notch positions of the two square grooves, the side walls of the locking blocks are connected with screws in a threaded mode, and the screws are connected with the side walls of the piston blocks on the same side in a rotating mode.

Preferably, the rod walls of the two connecting rods are fixedly sleeved with rubber sealing sleeves, and the outer side walls of the rubber sealing sleeves are in sliding contact with the bottoms of the square grooves on the same side.

Compared with the prior art, the connector terminal structure has the advantages that:

1. through the mutually supporting of terminal conductor and grafting circular slot that sets up, can regard as the terminal spare of connector connection wire to use, through the mutually supporting of insulating heat conduction post that sets up, two sets of arc crimping pieces, bar conductor and two roof pressure mechanisms, can apply opposite crimping force to the conductor part of wire from the horizontal direction through two sets of arc crimping pieces that stagger each other, make the conductor of wire be crooked snake shape, thereby can greatly increased the conductor of wire and the ability of terminal conductor bearing horizontal pulling force, prevent the phenomenon that the wire pine takes off, connection stability between terminal conductor and the wire is high.

2. Through the mutually supporting of insulating ring, seal assembly and air pushing mechanism that set up, can be after the wire pegging graft, when carrying out the crimping to the wire conductor fixed, seal between wire and the terminal conductor in step to can improve the connection security between wire and the terminal conductor, reduce the possibility that dust, steam etc. invaded grafting circular slot inside.

3. Through the indicating mechanism who sets up, can be based on the inside atmospheric pressure of seal assembly, carry out synchronous instruction to the connection tightness between insulating ring and the wire, thereby can be convenient for personnel when the connection seal between terminal conductor and wire is inefficacy, in time resume the seal between terminal conductor and the wire, and through the heat conduction suggestion subassembly of setting, can be when the unusual intensification of terminal conductor is triggered because impurity such as corrosion, dust lead to the resistance to rise between terminal conductor and the wire conductor, automatic suggestion personnel, thereby can be convenient for people in time handle the hidden danger, prevent to keep the bad phenomenon of contact for a long time between terminal conductor and the wire, ensure the transmission quality and the stability of circuit.

Drawings

Fig. 1 is a schematic structural view of a connector terminal structure according to the present invention;

fig. 2 is a schematic top view of a connector terminal structure according to the present invention;

fig. 3 is a schematic view of an internal top view of a terminal conductor of a connector terminal structure according to the present invention;

fig. 4 is a schematic top view of an insulating heat conductive post of a connector terminal structure according to the present invention;

fig. 5 is a schematic top view of a seal assembly of a connector terminal structure according to the present invention;

FIG. 6 is a schematic top view of the interior of a thermal insulation block of a connector terminal structure provided by the present invention;

fig. 7 is a schematic diagram of a connector terminal structure according to the present invention after a wire is crimped and fixed (broken lines in the figure are wires).

In the figure: 1 terminal conductor, 2 grafting circular slot, 3 insulating heat conduction post, 4 arc crimping piece, 5 roof pressure mechanism, 501 cavity, 502 oblique kicking block, 503 insulating roof pressure post, 504 sideslip piece, 505 slope spout, 506 connecting rod, 507 square slot, 6 bar conductor, 7 insulating ring, 8 seal assembly, 801 ring channel, 802 seal membrane cover, 9 air pushing mechanism, 901 piston block, 902 air inlet channel, 10 indicating mechanism, 101 heat insulation block, 102 air tank, 103 air top piston, 104 intercommunicating pore, 105 transparent post, 106 elastic frame pad, 11 heat conduction prompt component, 111 heat conduction rod, 112 heat conduction slot, 113 thermochromic powder, 12 locking block, 13 screw, 14 rubber seal cover.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

As shown in fig. 1-7, a connector terminal structure comprises a terminal conductor 1, a plug circular groove 2 is formed in the end part of the terminal conductor 1, two insulation heat conduction columns 3 are plugged into the groove wall of the plug circular groove 2, two groups of arc pressing blocks 4 are arranged in the plug circular groove 2 in a sliding manner, the two groups of arc pressing blocks 4 are staggered at intervals, a pressing mechanism 5 is mounted on each insulation heat conduction column 3, the pressing mechanism 5 is used for pushing one group of arc pressing blocks 4 on the same side, each pressing mechanism 5 comprises a group of cavities 501 formed in the insulation heat conduction column 3, oblique pressing blocks 502 are slidably connected in the cavities 501, insulation pressing columns 503 are fixedly mounted on the side walls of each arc pressing block 4, the insulation pressing columns 503 are slidably connected with the side walls of the same-side strip conductors 6 and the cavities 501, transverse moving blocks 504 are fixedly mounted on the end parts of the insulation pressing columns 503, oblique sides of the oblique pressing blocks are provided with oblique sliding grooves 505, the transverse moving blocks 504 are slidably connected with the oblique sliding grooves 505, each oblique pressing block 502 is jointly provided with a connecting rod 506, and the end parts of the oblique pressing blocks 506 can move along the oblique grooves 506, and the oblique pressing blocks 506 are slidably connected with the groove grooves 506 through the oblique grooves, and the connecting rods 506 can move along the grooves of the grooves, and the grooves of the grooves are in a plurality of the grooves, and the grooves of the grooves are in a sliding mode.

The side wall of two insulating heat conduction posts 3 opposite sides is all fixed mounting has bar conductor 6, and two bar conductors 6 all contact with the cell wall of grafting circular slot 2, the inside of grafting circular slot 2 is provided with insulating ring 7, and insulating ring 7 fixed mounting is between two insulating heat conduction posts 3, insulating ring 7 internally mounted has seal assembly 8, seal assembly 8 is including seting up in the ring channel 801 of insulating ring 7 inner wall, seal membrane cover 802 is packed to the notch of ring channel 801, after the inside atmospheric pressure of ring channel 801 rises, seal membrane cover 802 inflation bulge and with the insulating crust in close contact of wire when can, reach the effect to sealing between wire and the terminal conductor 1.

The air pushing mechanisms 9 are arranged on the two jacking mechanisms 5, the air pushing mechanisms 9 are used for inflating the sealing assembly 8, the two air pushing mechanisms 9 comprise piston blocks 901 fixedly arranged on the rod ends of the connecting rods 506, the piston blocks 901 are arranged in the square grooves 507 in a sliding mode, air inlet channels 902 are formed in the groove walls of the square grooves 507, the square grooves 507 are communicated with the annular grooves 801 through the air inlet channels 902, and when the piston blocks 901 move to the groove bottoms of the square grooves 507, air inside the square grooves 507 can be extruded and discharged through the air inlet channels 902.

The notch department of two square grooves 507 all fixed mounting has latch segment 12, and the lateral wall threaded connection of latch segment 12 has screw 13, and screw 13 rotates with the lateral wall of homonymy piston block 901 to be connected, through rotating screw 13, cooperation latch segment 12 can lock fixedly to connecting rod 506, ensures the stability of each oblique kicking block 502.

The rubber sealing sleeve 14 is fixedly sleeved on the rod walls of the two connecting rods 506, the outer side walls of the rubber sealing sleeve 14 are in sliding contact with the bottoms of the square grooves 507 at the same side, and the rubber sealing sleeve 14 can prevent air in the square grooves 507 from flowing out of the bottoms of the square grooves 507.

The indicating mechanism 10 is installed to two insulating heat conduction posts 3, and two indicating mechanism 10 all are linked together with homonymy seal assembly 8, indicating mechanism 10 is used for instructing the inside atmospheric pressure of seal assembly 8, two indicating mechanism 10 all include fixed mounting in insulating block 101 of insulating ring 7 lateral wall, the air tank 102 has been seted up to the inside of insulating block 101, and the inside of air tank 102 still has to be provided with air dome piston 103, communication hole 104 has been seted up jointly to air tank 102 and the cell wall of ring channel 801, the tip fixed mounting of air dome piston 103 has transparent post 105, the notch sliding connection of transparent post 105 and air tank 102, fixedly connected with elasticity frame pad 106 between air dome piston 103 and the air tank 102, elasticity frame pad 106 can be after the inside atmospheric pressure of air tank 102 reduces, with air dome piston 103 back top reset.

The inside of two indicating mechanisms 10 is all installed and is led subassembly 11, the heat conduction is led subassembly 11 and is used for the unusual phenomenon of generating heat of suggestion personnel terminal conductor 1, two heat conduction are led subassembly 11 all including fixed grafting in the heat conduction pole 111 of gas cap piston 103 terminal surface, the heat conduction groove 112 has been seted up to the tip of insulating heat conduction post 3, the inside of transparent post 105 is the cavity setting, the inside of heat conduction groove 112 is extended to the one end of heat conduction pole 111, and the other end of heat conduction pole 111 extends to the inside of transparent post 105, the inside of transparent post 105 is filled with thermochromic powder 113, thermochromic powder 113 is at normal atmospheric temperature, its molecular structure can be in more stable state, demonstrate a specific colour, when the temperature risen, the molecular structure of thermochromic powder 113 changes, the absorption or scattering characteristic that lead to light change, thereby arouse the colour, this is prior art, therefore, this is not described in detail herein.

The principle of operation of the present invention will now be described as follows: when connecting the lead wire with the terminal conductor 1, one end of the lead wire leaking out of the conductor is inserted into the insertion circular groove 2 of the terminal conductor 1, and then two screws 13 are screwed in sequence by using a screwdriver;

when the screw 13 rotates, the connecting rod 506 can be pushed by the piston block 901 to move, the connecting rod 506 can drive the plurality of inclined ejector blocks 502 on the same side to move, under the action of the inclined chute 505, each inclined ejector block 502 can push each transverse moving block 504 to move horizontally, and each transverse moving block 504 can push the arc-shaped press-fit block 4 to move through the insulating top press-fit column 503, so that the conductor of the wire can be contacted with the corresponding strip-shaped conductor 6, under the action of the two groups of arc-shaped press-fit blocks 4, the conductor of the wire can be contacted with the two strip-shaped conductors 6, and the conductor part of the wire is in a bent serpentine state (as shown in fig. 7), and under the blocking action of the arc-shaped press-fit blocks 4, most of horizontal pulling force can be borne, so that the press-fit effect of the arc-fit blocks 4 on the conductor of the wire can greatly improve the press-fit stability of the conductor of the wire, and the anti-drop effect is good;

when the screw 13 is screwed, the piston block 901 can be pushed to move, the piston block 901 can squeeze the air in the square groove 507 into the annular groove 801 of the insulating ring 7 through the air inlet channel 902, so that the air pressure in the annular groove 801 can be increased, the sealing film sleeve 802 can be bulged and expanded and is in close contact with the insulating sheath of the lead, and the tightness between the lead and the terminal conductor 1 is kept;

part of air entering the annular groove 801 enters the air groove 102 through the communication hole 104, so that the air pressure in the air groove 102 is synchronously increased, the air top piston 103 can be pushed to move, the transparent column 105 can be ejected out of the air groove 102, a person can know whether the air pressure in the annular groove 801 is sufficient by observing whether the end part of the transparent column 105 is positioned at the outer side of the air groove 102 in subsequent inspection maintenance, if the end part of the transparent column 105 is positioned at the outer side of the air groove 102, the air pressure in the annular groove 801 is sufficient, the tightness between the sealing film sleeve 802 and a wire is kept better, if the end part of the transparent column 105 is retracted into the air groove 102, the air leakage in the annular groove 801 is indicated, the air pressure is restored to a normal pressure state, and if the tightness between the sealing film sleeve 802 and the wire is poor, a new terminal piece is needed to be replaced, and if the air leakage condition is lighter, the screw 13 can be screwed back in after the screw 13 is unscrewed again;

in the daily operation of the terminal conductor 1, if water vapor and the like invade the inside of the plugging circular groove 2 and cause the corrosion phenomenon of the terminal conductor 1, the strip conductor 6 or the lead conductor, the corrosion can obstruct the current flow, so the resistance of the corrosion part can be increased, the temperature of the terminal conductor 1 and the lead conductor can be synchronously increased when the electric power transmission is carried out due to the increase of the resistance, the heat at the corrosion point can not be timely dissipated when the corrosion is serious, the increased heat can be transferred to the heat conducting groove 112 through the insulating heat conducting column 3 along with the accumulation of the heat, the heat can be transferred to the inside of the transparent column 105, the molecular structure of the thermochromic powder 113 can be in a stable state along with the increase of the temperature inside of the transparent column 105, a specific color is presented, and when the temperature is increased, the molecular structure of the thermochromic powder 113 is changed, so the absorption or scattering characteristics of light are changed, namely, when the temperature of the terminal conductor 1, the strip conductor 6 or the lead conductor is seriously damaged, the color of the thermochromic powder 113 is also changed along with the heat, if the temperature of the terminal conductor is changed, and the color of the conductor is required to be timely changed by observing whether the temperature change of the strip conductor 6 or the lead conductor is required to be changed, and if the color change of the conductor is required to be timely changed, and the color change of the conductor is observed.

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a connector terminal structure, includes terminal conductor (1), its characterized in that, grafting circular slot (2) have been seted up to the tip of terminal conductor (1), peg graft the cell wall of grafting circular slot (2) and have two insulating heat conduction post (3), the inside of grafting circular slot (2) is provided with two sets of arc crimping piece (4), and two sets of arc crimping piece (4) are mutual interval stagger setting, two insulating heat conduction post (3) all install roof pressure mechanism (5), roof pressure mechanism (5) are used for pushing away a set of arc crimping piece (4) of homonymy, two the lateral wall of insulating heat conduction post (3) opposite side is fixed mounting strip conductor (6), and two strip conductor (6) all contact with the cell wall of grafting circular slot (2), the inside of grafting circular slot (2) is provided with insulating ring (7), and insulating ring (7) fixed mounting is between two insulating heat conduction post (3), insulating ring (7) internally mounted has seal assembly (8), two roof pressure mechanism (5) are used for pushing away a set of arc crimping piece (4), two roof pressure mechanism (9) are installed with seal assembly (10) and are equal to seal assembly (8) are equal to seal mechanism (8), the indication mechanism (10) is used for indicating the air pressure inside the sealing assembly (8), the heat conduction prompt assembly (11) is arranged inside the two indication mechanisms (10), and the heat conduction prompt assembly (11) is used for prompting abnormal heating phenomena of the personnel terminal conductors (1).

2. The connector terminal structure according to claim 1, wherein the two jacking mechanisms (5) each comprise a group of cavities (501) formed in the insulating heat conducting column (3), each cavity (501) is slidably connected with an oblique jacking block (502), each arc-shaped crimping block (4) is fixedly provided with an insulating jacking column (503) on the side wall, the insulating jacking column (503) is slidably connected with the same-side strip conductor (6) and the side wall of the cavity (501), the end part of the insulating jacking column (503) is fixedly provided with a transverse sliding block (504), the oblique side edge of the oblique jacking block (502) is provided with an oblique sliding groove (505), the transverse sliding block (504) is slidably connected with the oblique sliding groove (505), each oblique jacking block (502) is jointly spliced with a connecting rod (506), the end part of the insulating heat conducting column (3) is provided with a square groove (507), and the connecting rod (506) is slidably connected with the groove bottom of the square groove (507).

3. A connector terminal structure according to claim 2, wherein the sealing member (8) comprises an annular groove (801) formed in an inner wall of the insulating ring (7), and a sealing film cover (802) is enclosed in a notch of the annular groove (801).

4. A connector terminal structure according to claim 3, wherein both of the air pushing mechanisms (9) comprise piston blocks (901) fixedly mounted on rod ends of the connecting rods (506), the piston blocks (901) are slidably arranged in square grooves (507), air inlet passages (902) are formed in groove walls of the square grooves (507), and the square grooves (507) are communicated with the annular grooves (801) through the air inlet passages (902).

5. The connector terminal structure according to claim 4, wherein the two indicating mechanisms (10) each comprise a heat insulation block (101) fixedly mounted on the outer side wall of the insulating ring (7), an air groove (102) is formed in the heat insulation block (101), an air top piston (103) is further arranged in the air groove (102), a communication hole (104) is formed in the air groove (102) and the groove wall of the annular groove (801), a transparent column (105) is fixedly mounted at the end of the air top piston (103), the transparent column (105) is slidably connected with the groove opening of the air groove (102), and an elastic frame pad (106) is fixedly connected between the air top piston (103) and the air groove (102).

6. The connector terminal structure according to claim 5, wherein the two heat conduction prompt components (11) each comprise a heat conduction rod (111) fixedly inserted into the end face of the air-cap piston (103), the end part of the insulating heat conduction column (3) is provided with a heat conduction groove (112), the inside of the transparent column (105) is hollow, one end of the heat conduction rod (111) extends to the inside of the heat conduction groove (112), the other end of the heat conduction rod (111) extends to the inside of the transparent column (105), and the inside of the transparent column (105) is filled with thermochromic powder (113).

7. The connector terminal structure according to claim 4, wherein locking blocks (12) are fixedly installed at the notch of each of the two square grooves (507), the side walls of the locking blocks (12) are in threaded connection with screws (13), and the screws (13) are in rotational connection with the side walls of the piston blocks (901) on the same side.

8. A connector terminal structure according to claim 4, wherein the rod walls of both the connecting rods (506) are fixedly sleeved with rubber sealing sleeves (14), and the outer side walls of the rubber sealing sleeves (14) are in sliding contact with the bottoms of the same-side square grooves (507).