CN212587768U

CN212587768U - Miniaturized high-current electric connector

Info

Publication number: CN212587768U
Application number: CN202021054485.XU
Authority: CN
Inventors: 许其峰; 王宏吉
Original assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Current assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-23
Anticipated expiration: 2030-06-10

Abstract

A miniaturized high-current electric connector comprises a base, wherein mutually independent assembling holes are symmetrically formed in the base, an upper jack is formed in the surface of the base, a rear blocking groove is formed in the tail end of the base, and the upper jack is communicated with the assembling holes; the contact elements are embedded in the assembly holes, bayonet locks are embedded in the upper insertion holes in a matched mode, the bayonet locks are inserted into the tops of the two contact elements and used for stopping the contact elements, and the upper cover is assembled and connected to the outer portion of the base; a cable is welded and embedded at the tail end of the contact element; the utility model discloses the upper cover can cover the cable welding part from the top, and the base cooperates with the upper cover to form a compact enclosed construction to protect the soldering department of contact piece and cable, avoid the soldering department to receive the erosion; the bayonet lock can limit the front and back assembly positions of the contact element, and the contact element is prevented from loosening and separating.

Description

Miniaturized high-current electric connector

Technical Field

The utility model belongs to the technical field of communication, in particular to miniaturized heavy current's electric connector.

Background

At present, the connection mode of the cable and the terminal mainly comprises mechanical connection, crimping and welding. The greatest advantage of mechanical connection is the repeatability of connection, and only a general tool or a simple special tool is needed, so that the cable can be repeatedly disassembled and assembled. The crimping mode connecting cable is good in consistency, low in technical requirement on workers and suitable for being used for on-site wiring, but special tools are needed. The mechanical connection increases the overall size of the connector due to the existence of the additional locking mechanism, and the axial size is increased due to the existence of the insulating sheath fixing structure and the core wire pressing structure by adopting a crimping mode to connect the cables; the welding type joint is widely applied to the electrical and electronic industries due to low price and high production efficiency;

however, in the current welding type joint, the connection strength between the welding cup and the cable is insufficient, the protection measures are insufficient, and meanwhile, under the action of the tension between the contact element and the cable, the tin soldering point of the cable and the contact element is partially loosened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists provides an electric connector of miniaturized heavy current, and concrete technical scheme is as follows:

a miniaturized high-current electric connector comprises a base, wherein mutually independent assembling holes are symmetrically formed in the base, an upper jack is formed in the surface of the base, a rear blocking groove is formed in the tail end of the base, and the upper jack is communicated with the assembling holes;

the contact elements are embedded in the assembly holes, bayonet locks are embedded in the upper insertion holes in a matched mode, the bayonet locks are inserted into the tops of the two contact elements and used for stopping the contact elements, the upper cover is assembled outside the base, and the top of the upper cover is inserted into the top of the base, and the side of the upper cover is inserted into the rear stopping groove; the cable is embedded into the tail end of the contact element in a welding mode, and the upper cover is attached to and pressed on the cable.

Furthermore, the contact element comprises a front plug-in component, a fixed seat and a rear welding cup, the front plug-in component is arranged at the front end of the fixed seat, the rear welding cup is arranged at the tail end of the fixed seat, the cable is embedded into the rear welding cup in a soldering mode, the side sections of the fixed seat and the rear welding cup are both U-shaped, a positioning notch is formed in the upper portion of the fixed seat, and the clamping pin is inserted into the positioning notch.

Furthermore, a transition slope is arranged between the fixed seat and the rear welding cup, and a process seam is formed in the transition slope.

Furthermore, the bottom surface tail end of upper cover is equipped with the backstop perpendicularly, the cooperation groove has been seted up to the inside symmetry of backstop, the inside laminating embedding in cooperation groove has the cable, the bottom surface of backstop is equipped with the card post, the card hole has been seted up on the surface in backstop groove, the card post embedding in the card hole, the bottom surface front end of upper cover is equipped with the reference column, the locating hole has been seted up on the surface of base, the reference column embedding in the locating hole.

Furthermore, two be equipped with between the cooperation groove and strengthen the seat, the bottom surface central line department of upper cover is equipped with perpendicularly and strengthens the picture peg, strengthen the picture peg with the upper cover sets up perpendicularly, strengthen the bottom of picture peg imbed in strengthen in the seat.

Furthermore, the bottom surface of the reinforcing insertion plate is of a trapezoidal structure, and the width of the outer end of the trapezoidal structure is larger than that of the inner end of the trapezoidal structure.

Further, the bayonet lock includes base plate, protruding piece and dop, protruding piece includes boss and bumping post, the bottom surface symmetry interval of base plate is equipped with the boss, the bottom surface symmetry of boss is equipped with the bumping post, the outside of bumping post with be the cooperation groove of echelonment between the boss, the location breach imbed in the cooperation inslot, the bumping post imbed in the fixing base, every the top of contact all cooperates there is a set of protruding piece, the dop with the inner wall cooperation of pilot hole is pegged graft.

The utility model has the advantages that:

1. the upper cover can cover the cable welding part from the upper part, and the base and the upper cover are matched to form a compact closed structure, so that the soldering position of the contact and the cable is protected, and the soldering position is prevented from being corroded;

2. the bayonet lock can limit the front and back assembly positions of the contact element, and the contact element is prevented from loosening and separating.

Drawings

Fig. 1 shows a schematic structural view of a miniaturized high current electrical connector of the present invention;

fig. 2 shows a schematic view of the base structure of the present invention;

fig. 3 shows a schematic view of the contact structure of the present invention;

fig. 4 shows a schematic cross-sectional structure of the contact element of the present invention;

fig. 5 shows a schematic view of the contact, cable and bayonet fitting structure of the present invention;

FIG. 6 shows a schematic view of the bayonet structure of the present invention;

fig. 7 shows a schematic diagram of the bayonet and contact fitting structure of the present invention;

fig. 8 shows a schematic view of the structure of the upper cover of the present invention;

shown in the figure: 1. a base; 11. an assembly hole; 12. an upper jack; 13. positioning holes; 14. a reinforcement base; 15. a rear baffle groove; 151. a clamping hole; 2. a contact member; 21. a front plug-in; 22. a fixed seat; 221. positioning the notch; 23. welding the cup; 24. performing process sewing; 3. a bayonet lock; 31. a boss member; 311. a boss; 312. a bumping post; 313. a stopper groove; 32. clamping a head; 33. a substrate; 4. an upper cover; 41. a rear stop block; 411. clamping the column; 412. a mating groove; 42. a reinforcing plug board; 43. a positioning column; 5. an electrical cable.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A miniaturized high-current electric connector comprises a base 1, wherein mutually independent assembling holes 11 are symmetrically formed in the base 1, an upper jack 12 is formed in the surface of the base 1, a rear blocking groove 15 is formed in the tail end of the base 1, and the upper jack 12 is communicated with the assembling holes 11;

the contact element 2 is embedded in the assembly hole 11, the bayonet 3 is embedded in the upper insertion hole 12 in a matched manner, the bayonet 3 is inserted into the tops of the two contact elements 2, the bayonet 3 is used for stopping the contact elements 2, and the bayonet 3 can limit the front and back assembly positions of the contact elements 2 to prevent the contact elements 2 from loosening and separating;

an upper cover 4 is assembled outside the base 1, the top of the upper cover 4 is inserted into the top of the base 1, and the side of the upper cover 4 is inserted into the rear baffle groove 15; a cable 5 is embedded into the tail end of the contact element 2 in a welding mode, and the upper cover 4 is attached to and tightly pressed on the cable 5; the upper cover 4 is used for fixing the cable from the upper part, the cable is prevented from loosening, the base and the upper cover are matched to form a compact closed structure, therefore, the soldering positions of the contact piece and the cable are protected, the soldering positions are prevented from being corroded, and the contact piece is used for electrically connecting the cable.

As shown in fig. 3, the contact element 2 includes a front insert 21, a fixing seat 22, and a rear welding cup 23, the front insert 21 is disposed at the front end of the fixing seat 22, the rear welding cup 23 is disposed at the tail end of the fixing seat 22, the cable 5 is embedded in the rear welding cup 23 by soldering, the side sections of the fixing seat 22 and the rear welding cup 23 are both U-shaped, a positioning notch 221 is formed above the fixing seat 22, and the bayonet 3 is inserted into the positioning notch 221; the U-shaped rear welding cup 23 and the fixing seat 22 are used for facilitating the embedding of the cable, and the rear welding cup 23 is used as a welding area of the cable.

As shown in fig. 4, a transition slope is arranged between the fixed seat 22 and the rear welding cup 23, and a process seam 24 is formed on the transition slope; the transition slope is used for ensuring that the fixing seat 22 and the rear welding cup 23 are connected into a whole, the connection between the fixing seat and the rear welding cup is simpler and more convenient, the process seam 24 can ensure that the transition slope can be processed, and the forming requirement and the welding requirement of the contact piece are ensured.

As shown in fig. 8, a rear stopper 41 is vertically arranged at the tail end of the bottom surface of the upper cover 4, a matching groove 412 is symmetrically formed in the rear stopper 41, a cable 5 is fitted and embedded in the matching groove 412, a clamping column 411 is arranged on the bottom surface of the rear stopper 41, a clamping hole 151 is formed in the surface of the rear stopper groove 15, the clamping column 411 is embedded in the clamping hole 151, a positioning column 43 is arranged at the front end of the bottom surface of the upper cover 4, a positioning hole 13 is formed in the surface of the base 1, and the positioning column 43 is embedded in the positioning hole 13; by utilizing the matching between the clamping column 411 and the clamping hole 151 and the matching between the positioning column 43 and the positioning hole 13, the connection strength between the upper cover 4 and the base 1 can be effectively improved, and the firm matching between the upper cover and the base is ensured.

As an improvement of the above technical solution, a reinforcing seat 14 is arranged between the two mating grooves 412, a reinforcing insertion plate 42 is vertically arranged at the central line of the bottom surface of the upper cover 4, the reinforcing insertion plate 42 is vertically arranged with the upper cover 4, and the bottom end of the reinforcing insertion plate 42 is embedded in the reinforcing seat 14; the reinforcing insert plate 42 can ensure the separation of the two contact members to avoid the contact therebetween, and can further improve the connection strength between the upper cover 4 and the base 1.

As an improvement of the above technical solution, the bottom surface of the reinforcing insertion plate 42 is a trapezoidal structure, and the width of the outer end of the trapezoidal structure is greater than the width of the inner end; after the upper cover 4 is matched with the base 1, the wider outer end can provide larger holding force, the upper cover and the base are prevented from loosening, the narrower inner end can reduce the force of the upper cover loaded into the base, and the primary insertion of the upper cover is simpler and more convenient.

As shown in fig. 5, 6 and 7, the bayonet pin 3 includes a base plate 33, a protruding member 31 and a clamping head 32, the protruding member 31 includes a boss 311 and a stop post 312, the boss 311 is symmetrically arranged on the bottom surface of the base plate 33 at intervals, the stop post 312 is symmetrically arranged on the bottom surface of the boss 311, a stepped stop groove 313 is arranged between the outer side of the stop post 312 and the boss 311, the boss 311 is embedded in the positioning notch 221, the stop post 312 is embedded in the fixing seat 22, a group of protruding members 31 is matched above each contact element 2, and the clamping head 32 is matched and inserted with the inner wall of the assembly hole 11; utilize boss 311 can carry out the backstop to the contact piece, avoid contact piece lateral motion, bumping post 312 can be from inside to outside support contact piece for bayonet lock and contact piece cooperation are more accurate, and the bayonet lock pine can be avoided to the dop to take off, makes the bayonet lock fix in pilot hole 11.

When the utility model is implemented, the cable 5 is soldered in the rear welding cup 23, then the contact element is integrally inserted into the assembly hole 11, so that the positioning notch 221 is aligned with the upper jack 12, then the bayonet pin 3 is inserted into the upper jack 12, the boss 311 is embedded into the positioning notch 221, the bumping post 312 is attached to the inner wall of the fixed seat 22, the fixed seat 22 is flush with the base plate 33, and the bayonet head 32 is connected with the inner wall of the upper jack 12 in a clamping manner;

finally, the upper cover 4 is buckled on the base 1, the rear stop block 41 of the upper cover 4 is embedded into the rear stop groove 15, the clamping column 411 is clamped and embedded into the clamping hole 151, the positioning column 43 is embedded into the positioning hole 13, and meanwhile, the special-shaped convex key at the bottom end of the reinforcing insertion plate 42 is embedded into the reinforcing seat 14; thus, the assembly can be completed.

The plug comprises a base, a contact element, a clamping pin and an upper cover. The contact piece is welded with the cable, then is installed in the base and is positioned through the clamping pin. The large U-shaped part in the middle of the contact element and the small U-shaped part at the welding part at the tail part are of step structures, and the transition section is provided with a stamping process seam, so that the forming requirement and the welding requirement of the contact element are ensured. The upper cover is matched with the base firmly through the combined action of the cylinder, the buckle and the convex key structure, and the welding position of the contact piece is protected.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A miniaturized high current electrical connector, comprising: the device comprises a base (1), assembling holes (11) which are mutually independent are symmetrically formed in the base (1), an upper jack (12) is formed in the surface of the base (1), a rear blocking groove (15) is formed in the tail end of the base (1), and the upper jack (12) is communicated with the assembling holes (11);

the contact elements (2) are embedded into the assembly holes (11), the bayonet locks (3) are embedded into the upper insertion holes (12) in a matched mode, the bayonet locks (3) are inserted into the tops of the two contact elements (2), the bayonet locks (3) are used for stopping the contact elements (2), the upper cover (4) is assembled and connected to the outer portion of the base (1), the top of the upper cover (4) is inserted into the top of the base (1), and the side of the upper cover is inserted into the rear blocking groove (15); the tail end of the contact element (2) is embedded with a cable (5) in a welding mode, and the upper cover (4) is attached and pressed on the cable (5).

2. A miniaturized high current electrical connector as claimed in claim 1, wherein: contact piece (2) are including preceding plug-in components (21), fixing base (22), back welding cup (23), preceding plug-in components (21) are located the front end of fixing base (22), back welding cup (23) are located the tail end of fixing base (22), cable (5) tin soldering embedding in the inside of back welding cup (23), the side cross-section of fixing base (22), back welding cup (23) is the U type, location breach (221) have been seted up to the top of fixing base (22), bayonet lock (3) cartridge in location breach (221).

3. A miniaturized high current electrical connector as claimed in claim 2, wherein: a transition slope is arranged between the fixed seat (22) and the rear welding cup (23), and a process seam (24) is formed in the transition slope.

4. A miniaturized high current electrical connector as claimed in claim 2 or 3, wherein: the utility model discloses a cable clamp, including upper cover (4), backstop (41), cooperation groove (412) have been seted up to the inside symmetry of backstop (41), the inside laminating embedding of cooperation groove (412) has cable (5), the bottom surface of backstop (41) is equipped with card post (411), card hole (151) have been seted up on the surface of backstop groove (15), card post (411) imbed in card hole (151), the bottom surface front end of upper cover (4) is equipped with reference column (43), locating hole (13) have been seted up on the surface of base (1), reference column (43) imbed in locating hole (13).

5. A miniaturized high current electrical connector as claimed in claim 4, wherein: two be equipped with between cooperation groove (412) and strengthen seat (14), the bottom surface central line department of upper cover (4) is equipped with perpendicularly and strengthens picture peg (42), strengthen picture peg (42) with upper cover (4) perpendicular setting, the bottom of strengthening picture peg (42) imbed in strengthen in the seat (14).

6. A miniaturized high current electrical connector as claimed in claim 5, wherein: the bottom surface of the reinforcing insertion plate (42) is of a trapezoidal structure, and the width of the outer end of the trapezoidal structure is larger than that of the inner end of the trapezoidal structure.

7. A miniaturized high current electrical connector as claimed in claim 4, wherein: bayonet lock (3) are including base plate (33), protruding piece (31) and dop (32), protruding piece (31) are including boss (311) and bumping post (312), the bottom surface symmetric interval of base plate (33) is equipped with boss (311), the bottom surface symmetry of boss (311) is equipped with bumping post (312), the outside of bumping post (312) with stop groove (313) for the echelonment between boss (311), boss (311) imbed in location breach (221), bumping post (312) imbed in fixing base (22), every the top of contact piece (2) all cooperates a set of protruding piece (31), dop (32) with the inner wall cooperation of pilot hole (11) is pegged graft.