CN109494506B

CN109494506B - Bending plug

Info

Publication number: CN109494506B
Application number: CN201811321386.0A
Authority: CN
Inventors: 沈榕鑫; 宁鹏涛; 令狐云波; 刘思锶; 唐兴然
Original assignee: Kunshan Luxshare Precision Industry Co Ltd
Current assignee: Kunshan Luxshare Precision Industry Co Ltd
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2021-05-18
Anticipated expiration: 2038-11-07
Also published as: CN109494506A

Abstract

The invention belongs to the technical field of connectors and discloses a bent plug. This angle plug includes: a cable; the connecting terminal comprises a first tail end and a second tail end, the first tail end and the second tail end are integrally formed by stamping and bending a metal plate, and the first tail end is connected with a cable; the contact terminal comprises a contact end and a connecting end, the contact end is used for being electrically contacted with a conductive terminal of the socket, one of the connecting end and the second end is provided with a jack, the other end is provided with an inserting part used for being inserted and fixed in the jack, and the connecting direction of the second end and the connecting end is perpendicular to the connecting direction of the first end and the cable. The invention realizes the flexible and diverse connection modes between the terminal assemblies by various splicing combinations of the contact terminals and the wiring terminals, thereby solving the existing problems.

Description

Bending plug

Technical Field

The invention relates to the technical field of connectors, in particular to a bent plug.

Background

In the current market, new energy automobiles with similar specifications have high voltage and large current, and connectors (particularly plugs) generally have the characteristics of high cost, complex manufacturing, low current conduction efficiency, weak protective performance and the like. In addition, the terminal assemblies are usually machined from conventional copper alloy bar stock, which results in a single connection manner between the terminal assemblies and a lack of flexibility and versatility.

Therefore, there is a need to provide a new angle plug to solve the above problems.

Disclosure of Invention

The invention aims to provide an angle plug to solve the problem that the existing terminal component is single in connection mode.

In order to achieve the purpose, the invention adopts the following technical scheme:

an angle plug, comprising:

a cable;

a connection terminal including a first end and a second end, the first end being connected to the cable;

and the contact terminal comprises a contact end and a connecting end, the contact end is used for electrically contacting with a conductive terminal of the socket, one of the connecting end and the second tail end is provided with a jack, and the other one is provided with an inserting part which is used for being inserted and fixed in the jack.

Preferably, the connecting end is provided with a jack for inserting the second tail end, a first plug spring piece is arranged in the jack, and the first plug spring piece is extruded between the inner wall of the jack and the second tail end; the contact end is provided with a contact hole for inserting the conductive terminal of the socket, and a second insertion spring sheet is arranged on the inner wall of the contact hole.

Preferably, the second end is provided with a jack for inserting the connecting end, an adapter is sleeved in the connecting end and the contact end, one end of the adapter is electrically contacted with the connecting end through the first plug spring piece, and the other end of the adapter is electrically contacted with the contact end through the second plug spring piece.

Preferably, the first end and the second end are integrally formed, and the first end is connected with the cable in a crimping, welding or screwing mode.

Preferably, the cable comprises a wire core, an inner insulating layer, a shielding wire and an outer insulating layer from inside to outside in sequence, the wire core is connected with the first end, an inner fastening ring and an outer fastening ring are sleeved outside the outer insulating layer, the shielding wire is reversely folded outside the inner fastening ring, and the shielding wire is fixed between the outer fastening ring and the inner fastening ring.

Preferably, the method further comprises the following steps:

the first rubber core is arranged outside the cable and the wiring terminal, a first slide way, a second slide way and a slide groove are arranged on the first rubber core, and the first slide way and the second slide way are respectively vertical to and communicated with the slide groove;

the second rubber core is arranged outside the contact terminal, a clamping ring is arranged on the second rubber core, a first sliding part and a second sliding part are vertically arranged on the clamping ring, the first sliding part slides into the first slide way and then is locked, the second sliding part slides into the second slide way and then is locked, and the clamping ring is accommodated in the sliding groove;

and the third rubber core is clamped at the lower end of the second rubber core and sleeved below the contact end.

Preferably, the method further comprises the following steps:

the first shielding cover is wrapped outside the first rubber core, one end of the outer fastening ring is sleeved outside the inner fastening ring, the other end of the outer fastening ring is clamped with the first shielding cover, and a plurality of first elastic pressing fingers extend from the bottom end of the first shielding cover;

the second shield cover wraps the outside of the third rubber core, the second shield cover is provided with a plurality of second elastic pressure fingers and a plurality of extension parts, saw teeth are arranged on two sides of the extension parts, the retainer ring is provided with a plurality of discontinuous clamping protrusions, the first elastic pressure fingers are in press connection with the outer surface of the second shield cover, the second elastic pressure fingers are in press connection with the outer surface of the third rubber core, and the extension parts are in press connection between every two adjacent clamping protrusions.

Preferably, the cable connector further comprises an insulating shell, a cavity for accommodating the first shielding cover and the second shielding cover is formed in the insulating shell, at least one first through hole for inserting the cable is formed in the insulating shell, a plurality of buckles are arranged outside the first through hole, a first sealing ring and a tail cover are sleeved outside the cable, the first sealing ring is sealed in the first through hole, and the tail cover is clamped with the buckles so as to seal the inner fastening ring, the outer fastening ring and the wiring terminal in the cavity.

Preferably, the first sealing ring is provided with at least one clamping position, the tail cover is provided with at least one through hole, and the clamping position penetrates through the through hole and then is clamped, so that the first sealing ring is accommodated in the tail cover.

Preferably, the insulating housing is provided with at least one second through hole for the contact terminal to penetrate out, the first through hole, the cavity and the second through hole are communicated, a second sealing ring and a positioning piece are nested between the outside of the second through hole and the inner wall of the insulating housing, the second sealing ring is fixedly arranged on the positioning piece, and the positioning piece is clamped on the inner wall of the insulating housing.

The invention has the beneficial effects that:

the invention realizes the flexible diversity of the connection modes between the terminal components by the various splicing combinations of the contact terminals and the wiring terminals, thereby solving the problem that the connection mode between the existing terminal components is single.

Drawings

Fig. 1 is a schematic structural view of an angle plug provided by the present invention;

FIG. 2 is an exploded schematic view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is an exploded schematic view of the cable assembly of FIG. 2;

FIG. 5 is a schematic view of the first glue core of FIG. 2;

FIG. 6 is a schematic view of the second glue core of FIG. 2;

fig. 7 is a schematic structural view of the first shield and the second shield of fig. 2;

FIG. 8 is a schematic view of the first seal ring and tail cap of FIG. 2;

FIG. 9 is a schematic view of another construction of the wire connecting terminal and the contact terminal;

FIG. 10 is an exploded schematic view of FIG. 9;

FIG. 11 is a schematic view of yet another construction of the wire connecting terminal and contact terminal;

fig. 12 is an exploded schematic view of fig. 11.

In the figure:

1. a cable assembly; 11. a cable; 12. a wiring terminal; 13. a contact terminal; 14. an inner fastening ring; 15. an outer fastening ring; 16. a first seal ring; 17. a tail cover; 111. a wire core; 112. an inner insulating layer; 113. an outer insulating layer; 121. a first end; 122. a second end; 123. a jack; 124. an insertion portion; 125. a contact hole; 131. a contact end; 132. a connecting end; 133. a first insertion spring plate; 134. a second insertion spring plate; 161. clamping and connecting; 171. a through hole;

21. a first rubber core; 22. a second rubber core; 23. a third rubber core; 211. a first slideway; 212. a second slideway; 213. a chute; 221. a first sliding part; 222. a second slide portion; 223. a collar; 224. clamping convex;

31. a first shield case; 32. a second shield case; 311. a first elastic pressing finger; 312. a protrusion; 321. a second elastic pressing finger; 322. an extension portion;

4. an insulating housing; 41. a first through hole; 42. a second through hole; 43. buckling; 44. a second seal ring; 45. a positioning member.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, the angle plug provided by the present invention comprises at least one cable assembly 1, wherein the cable assembly 1 is inserted into an insulating housing 4, and the insulating housing 4 is injection molded by using insulating material PA66+ GF with high temperature resistance, chemical resistance and good dimensional stability.

As shown in fig. 2 to 4, the cable assembly 1 includes a cable 11, a connection terminal 12, and a contact terminal 13, wherein:

the cable 11 sequentially comprises a wire core 111, an inner insulating layer 112, a shielding wire and an outer insulating layer 113 from inside to outside, the wire core 111 is connected with the first end 121 of the wiring terminal 12, an inner fastening ring 14 and an outer fastening ring 15 are sleeved outside the outer insulating layer 113, the shielding wire is reversely folded outside the inner fastening ring 14 and fixed between the outer fastening ring 15 and the inner fastening ring 14, and therefore the shielding wire can be prevented from penetrating through the inner insulating layer 112 of the cable 11 and being conducted with the wire core 111.

The wire connecting terminal 12 includes a first end 121 and a second end 122, the first end 121 being connected to the cable 11; the contact terminal 13 includes a contact end 131 and a connection end 132, the contact end 131 is used for electrically contacting with a conductive terminal of the socket, one of the connection end 132 and the second end 122 is provided with a plug-in hole 123, and the other is provided with a plug-in portion 124 for being inserted and fixed in the plug-in hole 123.

Specifically, in one embodiment, as shown in fig. 4, the connection terminal 12 includes a first end 121 connected to the cable 11 and a second end 122 disposed perpendicular to the first end 121, the first end 121 and the second end 122 are integrally formed, and the first end 121 is crimped, welded or screwed with the wire core 111, preferably crimped. The connecting end 132 is provided with a jack 123 for inserting the second end 122, a first plug spring 133 is arranged in the jack 123 and is squeezed between the inner wall of the jack 123 and the second end 122; the contact terminal 131 is provided with a contact hole 125 for inserting a conductive terminal of the socket, and a second spring plate 134 is disposed on an inner wall of the contact hole 125.

Specifically, in another embodiment, as shown in fig. 9 and 10, the difference from the previous embodiment is that: the first end 121 and the second end 122 are parallel and integrally formed, and the first end 121 is inserted into the wire core 111.

Specifically, in yet another embodiment, as shown in fig. 11 and 12, unlike the first embodiment: the first end 121 and the second end 122 are integrally formed, and the first end 121 is inserted into the wire core 111. The second end 122 is provided with a jack 123 for inserting and fixing the connection end 132, an adaptor 135 is sleeved in the connection end 132 and the contact end 131, one end of the adaptor 135 is electrically contacted with the connection end 132 through a first plug spring 133, and the other end is electrically contacted with the contact end 131 through a second plug spring 134.

In the above three embodiments, the first spring plate 133 and the second spring plate 134 are arranged to make the connection between the two contact members (e.g., the connection end 132 and the second end 122, the contact end 131 and the socket terminal, and the adaptor 135 and the connection end 132 and the contact end 131, respectively) more reliable.

Specifically, the first end 121 and the second end 122 are formed by stamping and bending a copper alloy sheet metal, so that tolerance consistency is easily adjusted, performance inconsistency of products due to accumulated tolerance is avoided, meanwhile, the weight of the copper alloy is reduced, and cost rise is reduced from the raw material; and the surface of the copper foil is ensured to resist corrosion and acid and alkali by adopting an electroplating process so as to reduce the contact resistance of the copper foil. First plug reed 133 and second plug reed 134 adopt high conductivity, high resilience force copper alloy stamping forming for first plug reed 133 and second plug reed 134 satisfy the plug requirement, and through experimental demonstration, the plug life-span is greater than 500 times. And the surfaces of the first plug spring piece 133 and the second plug spring piece 134 are protected by the electroplating process, so that the corrosion resistance and the acid and alkali resistance of the plug spring piece are ensured, the contact resistance of the plug spring piece is reduced, and the plug spring piece can bear larger overload current. Specifically, a plurality of elastic contact fingers are convexly arranged on the surfaces of the first plug spring piece 133 and the second plug spring piece 134, so that the connection of the two contact pieces can be more reliable by arranging the first plug spring piece 133 and the second plug spring piece 134, and the problem that the terminal connection of the conventional angle plug is unreliable is solved.

Referring to fig. 2, fig. 3, fig. 5 and fig. 6, the angle plug further includes a first rubber core 21, a second rubber core 22 and a third rubber core 23 which are disposed outside the cable assembly 1 and sequentially arranged along a penetrating direction of the cable assembly 1, wherein:

the first rubber core 21 is arranged outside the cable 11 and the wiring terminal 12, the first rubber core 21 is provided with a first slide way 211, a second slide way 212 and a slide groove 213, and the first slide way 211 and the second slide way 212 are respectively vertical to and communicated with the slide groove 213. The second rubber core 22 is arranged outside the contact terminal 13, the second rubber core 22 is provided with a clamping ring 223, the clamping ring 223 is vertically provided with a first sliding part 221 and a second sliding part 222, the first sliding part 221 slides into the first slide way 211 to be locked, the second sliding part 222 slides into the second slide way 212 to be locked, and the clamping ring 223 is accommodated in the slide way 213. The third rubber core 23 is clamped to the lower end of the second rubber core 22 and sleeved below the contact end 131. The first slide part 221 is locked in the first slide way 211, and the second slide part 222 is locked in the second slide way 212, so that the first glue core 21 and the second glue core 22 are locked in the vertical direction; further, the first and

second cores

21 and 22 are locked in the horizontal direction by the retainer 223 being accommodated in the chute 213. Therefore, through the fixing manner, the first rubber core 21 and the second rubber core 22 can be locked in three directions of XYZ, and the stability of the structure is further ensured.

The first rubber core 21, the second rubber core 22 and the third rubber core 23 are all formed by injection molding of insulating materials PA66+ GF with high strength, high temperature resistance, chemical resistance and good dimensional stability, and the high strength and high toughness of the plastic are fully utilized.

Referring to fig. 2, 3 and 7, the angle plug further includes a first shield 31 and a second shield 32, wherein:

the first shielding cover 31 covers the outside of the first rubber core 21, one end of the outer fastening ring 15 is sleeved outside the inner fastening ring 14, the other end of the outer fastening ring is clamped with the first shielding cover 31, and a plurality of first elastic pressing fingers 311 extend from the bottom end of the first shielding cover 31. The second shielding cover 32 covers the outside of the third rubber core 23, the second shielding cover 32 is provided with a plurality of second elastic pressing fingers 321 and a plurality of extending portions 322, two sides of the extending portions 322 are provided with saw teeth, the retainer ring 223 is provided with a plurality of discontinuous clamping protrusions 224, the first elastic pressing fingers 311 are pressed on the outer surface of the second shielding cover 32, the second elastic pressing fingers 321 are pressed on the outer surface of the third rubber core 23, and the extending portions 322 are clamped between every two adjacent clamping protrusions 224. The first shield shell 31 can be contacted with the second shield shell 32 more reliably by arranging the first elastic pressing finger 311; the second elastic pressing finger 321 is arranged to make the connection between the second shielding cover 32 and the third rubber core 23 more reliable, and further, the extending portion 322 with the saw teeth is in interference fit with the locking protrusion 224 of the locking ring 223 to make the connection between the second shielding cover 32 and the second rubber core 22 more reliable.

Interior tighrening ring 14, outer tighrening ring 15, first shield 31 and second shield 32 all adopt copper alloy stamping forming, and nickel plating at the bottom of the surface adoption copper to satisfy the harsh salt fog requirement of good conductivity and environment.

Referring to fig. 2 and fig. 3, a cavity for accommodating the first shielding cover 31 and the second shielding cover 32 is disposed in the insulating housing 4, a plurality of protrusions 312 are disposed on an upper surface of the first shielding cover 31, a plurality of grooves (not shown) are disposed on an inner wall of the cavity, and the protrusions 312 are engaged with the grooves, so that the first shielding cover 31 and the insulating housing 4 are reliably connected.

Specifically, the insulating housing 4 is provided with at least one first through hole 41 for inserting the cable 11, the outside of the first through hole 41 is provided with a plurality of buckles 43, the outside of the cable 11 is sleeved with a first sealing ring 16 and a tail cover 17, the first sealing ring 16 is sealed in the first through hole 41, and the tail cover 17 is clamped with the buckles 43 to seal the inner fastening ring 14, the outer fastening ring 15 and the wiring terminal 12 in the cavity. The insulating housing 4 is provided with at least one second through hole 42 for the contact terminal 13 to penetrate through, the first through hole 41, the cavity and the second through hole 42 are communicated, a second sealing ring 44 and a positioning part 45 are nested between the outside of the second through hole 42 and the inner wall of the insulating housing 4, the second sealing ring 44 is fixedly arranged on the positioning part 45, and the positioning part 45 is clamped on the inner wall of the insulating housing 4. By providing the sealing rings (i.e., the first sealing ring 16 and the second sealing ring 44) in the gap between the elbow plug and the outside, the waterproof and dustproof capabilities of the metal elements in the cavity are increased. The positioning member 45 further contains a metal short contact piece, and when the angle plug is buckled with the socket, the metal short contact piece is communicated with a contact element in the socket, so that the normally open state of the connector is realized.

The first sealing ring 16 and the second sealing ring 44 are both made of VMQ materials which are resistant to high and low temperatures (such as-40 ℃ to +180 ℃) and resistant to scattering and cracking and self-lubricating, thereby ensuring strict waterproof effect.

Referring to fig. 8, the first sealing ring 16 is provided with at least one clamping position 161, the tail cover 17 is provided with at least one through hole 171, and the clamping position 161 is clamped after passing through the through hole 171, so that the first sealing ring 16 is accommodated in the tail cover 17, and the first sealing ring 16 can be ensured to be sealed in the first through hole 41 more accurately, thereby ensuring the sealing effect at the first through hole 41.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An angle plug, comprising:

a cable (11);

the connecting terminal (12) comprises a first tail end (121) and a second tail end (122) perpendicular to the first tail end (121), the first tail end (121) and the second tail end (122) are integrally formed by stamping and bending a sheet metal, and the first tail end (121) is connected with the cable (11);

the contact terminal (13) comprises a contact end (131) and a connecting end (132), the contact end (131) is used for being electrically contacted with a conductive terminal of a socket, one of the connecting end (132) and the second tail end (122) is provided with an insertion hole (123), the other one of the connecting end (132) and the second tail end (122) is provided with an insertion part (124) used for being inserted and fixed in the insertion hole (123), and the connecting direction of the second tail end (122) and the connecting end (132) is perpendicular to the connecting direction of the first tail end (121) and the cable (11).

2. The angle plug according to claim 1, characterized in that the connection end (132) is provided with the receptacle (123) for insertion of the second extremity (122), a first spring blade (133) being arranged within the receptacle (123), the first spring blade (133) being squeezed between an inner wall of the receptacle (123) and the second extremity (122); the contact end (131) is provided with a contact hole (125) for inserting the conductive terminal of the socket, and a second insertion spring piece (134) is arranged on the inner wall of the contact hole (125).

3. The angle plug according to claim 1, characterized in that the second end (122) is provided with the insertion hole (123) for inserting the connection end (132), a transfer member (135) is sleeved in the connection end (132) and the contact end (131), one end of the transfer member (135) is electrically contacted with the connection end (132) through a first plug spring sheet (133), and the other end is electrically contacted with the contact end (131) through a second plug spring sheet (134).

4. Angle plug according to claim 2 or 3, characterized in that the first end (121) is crimped, welded or screwed to the cable (11).

5. The angle plug according to claim 2 or 3, characterized in that the cable (11) comprises a wire core (111), an inner insulating layer (112), a shielding wire and an outer insulating layer (113) in sequence from inside to outside, the wire core (111) is connected with the first end (121), an inner fastening ring (14) and an outer fastening ring (15) are sleeved outside the outer insulating layer (113), the shielding wire is folded back outside the inner fastening ring (14), and the shielding wire is fixed between the outer fastening ring (15) and the inner fastening ring (14).

6. The angle plug of claim 5, further comprising:

the first rubber core (21) is arranged outside the cable (11) and the wiring terminal (12), a first slide way (211), a second slide way (212) and a slide groove (213) are arranged on the first rubber core (21), and the first slide way (211) and the second slide way (212) are respectively vertical to and communicated with the slide groove (213);

the second rubber core (22) is arranged outside the contact terminal (13), a clamping ring (223) is arranged on the second rubber core (22), a first sliding portion (221) and a second sliding portion (222) are vertically arranged on the clamping ring (223), the first sliding portion (221) slides into the first sliding channel (211) to be locked, the second sliding portion (222) slides into the second sliding channel (212) to be locked, and the clamping ring (223) is contained in the sliding groove (213);

and the third rubber core (23) is clamped at the lower end of the second rubber core (22) and sleeved below the contact end (131).

7. The angle plug of claim 6, further comprising:

the first shielding cover (31) is wrapped outside the first rubber core (21), one end of the outer fastening ring (15) is sleeved outside the inner fastening ring (14), the other end of the outer fastening ring is clamped with the first shielding cover (31), and a plurality of first elastic pressing fingers (311) extend from the bottom end of the first shielding cover (31);

second shield cover (32), its cladding in the outside of third gluey core (23), second shield cover (32) are equipped with a plurality of second elasticity and press and indicate (321) and a plurality of extension (322), the both sides of extension (322) are equipped with the sawtooth, rand (223) are equipped with a plurality of card of being interrupted protruding (224), first elasticity press indicate (311) crimping in the surface of second shield cover (32), second elasticity press indicate (321) crimping in the surface of third gluey core (23), extension (322) joint in per two adjacent between the card protruding (224).

8. The angle plug according to claim 7, further comprising an insulating housing (4) having a cavity for accommodating the first shield (31) and the second shield (32), wherein the insulating housing (4) is provided with at least one first through hole (41) for inserting the cable (11), the first through hole (41) is provided with a plurality of fasteners (43) on the outside, the cable (11) is sleeved with a first sealing ring (16) and a tail cap (17), the first sealing ring (16) is sealed in the first through hole (41), and the tail cap (17) is clamped with the fasteners (43) to seal the inner fastening ring (14), the outer fastening ring (15) and the wiring terminal (12) in the cavity.

9. The angle plug according to claim 8, characterized in that at least one clamping position (161) is provided on the first sealing ring (16), at least one through hole (171) is provided on the tail cover (17), and the clamping position (161) passes through the through hole (171) and then is clamped, so that the first sealing ring (16) is accommodated in the tail cover (17).

10. The angle plug according to claim 9, wherein the insulating housing (4) is provided with at least one second through hole (42) for the contact terminal (13) to pass through, the first through hole (41), the cavity and the second through hole (42) are communicated, a second sealing ring (44) and a positioning member (45) are nested between the outside of the second through hole (42) and the inner wall of the insulating housing (4), the second sealing ring (44) is fixedly arranged on the positioning member (45), and the positioning member (45) is clamped on the inner wall of the insulating housing (4).