CN210468138U

CN210468138U - Cable connector

Info

Publication number: CN210468138U
Application number: CN201921686068.4U
Authority: CN
Inventors: 姜国栋
Original assignee: Shenzhen Zhenru Electrical Technology Co Ltd
Current assignee: Shenzhen Zhenru Electrical Technology Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-05-05
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a cable connector aims at improving cable connector's waterproof dustproof effect, cable connector is including dismantling casing and the protecgulum of connection, be provided with the crimping subassembly in the casing, the crimping subassembly with be provided with waterproof cushion between the protecgulum, wherein, the casing with when the protecgulum fastening connects, the crimping subassembly with the protecgulum will extrude waterproof cushion is along radial inflation. The utility model discloses a cable connector has very good waterproof dustproof effect, can eliminate the cable connector waterproof dustproof effect relatively poor and influence cable connector's normal work and the electric fire or the personal safety hidden danger that probably cause well.

Description

Cable connector

Technical Field

The utility model relates to the technical field of cables, especially, relate to a cable connector.

Background

General cable junction adopts the cold junction to connect and with the cold junction for the screw tightening back, twine cable adhesive tape and cover lag, perhaps adopt hot melt insulating piece hot melt back seal installation, perhaps use glue filling insulating seal mode such as. The general cable connector does not have good waterproof and dustproof effects, when the cable connector is used for a long time, the protective performance can be influenced by the falling of an adhesive tape or the condensation of rainwater and the like, meanwhile, the corrosion on the surfaces of a copper core and a bolt of the cable and the enlargement of contact resistance are also caused, the cable can generate heat when the current flows through the cable after the resistance is enlarged, if the contact resistance is enlarged seriously, the outer insulating layer of a joint and the cable can be burnt at high temperature, the normal work of the cable connector is further influenced, and an electrical fire or a personal safety hazard can be possibly caused, so that the cable connector has great potential safety hazard in use.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a cable connector, which aims to solve the technical problem that the cable connector has a great potential safety hazard due to the poor waterproof and dustproof effect of the cable connector.

The utility model provides a cable connector, is including dismantling casing and the protecgulum of connecting, be provided with the crimping subassembly in the casing, the crimping subassembly with be provided with waterproof cushion between the protecgulum, wherein, when the casing with the protecgulum fastening connects, the crimping subassembly with the protecgulum will extrude waterproof cushion is along radial expansion.

Furthermore, two or three round holes are opened on the waterproof rubber mat.

Further, the shell is in threaded connection with the front cover.

Further, a gasket is arranged at the joint of the shell and the front cover.

Further, the crimping assembly comprises a sleeve, an insulating fixing piece is arranged in the sleeve, and a crimping piece for crimping the cable is arranged in the fixing piece.

Further, the crimping pieces are two pieces and are connected through a connecting piece, wherein the distance between the two crimping pieces can be adjusted through the connecting piece.

Further, the mounting is two, also passes through the connecting piece is connected, two crimping pieces set up between two mountings, just two crimping pieces laminate respectively one of two mountings sets up.

Furthermore, the connecting piece is a combination of a first bolt and a nut, two first crimping holes are formed in the two crimping pieces, a first connecting hole used for placing the nut is formed in one fixing piece, a second connecting hole is formed in the other fixing piece, and the first bolt penetrates through the second connecting hole, the first crimping hole and the first connecting hole and is connected with the nut.

Furthermore, the connecting piece is a bolt, one of the crimping pieces is provided with a second crimping hole, the fixing piece attached to the crimping piece is provided with a third connecting hole, and the bolt penetrates through the third connecting hole and the second crimping hole to crimp and fasten the cable.

Furthermore, a first sleeve hole or/and a second sleeve hole is/are formed in the sleeve.

The utility model discloses beneficial effect:

the utility model discloses a cable connector has very good waterproof dustproof effect, wherein:

(1) the waterproof rubber mat expands along the radial direction after being extruded, so that the waterproof rubber mat is in close contact with the outer surface of the cable and the inner wall of the shell to form an effective waterproof and dustproof sealing layer, and water or dust is effectively prevented from permeating into the shell from a front cover hole and a cable hole of the waterproof rubber mat;

(2) the utility model discloses a waterproof dustproof sealing layer of casing, including casing, protecgulum, casing, thread, the protecgulum is provided with the gasket with the casing junction, can prevent that steam and dust from getting into inside the casing by protecgulum and casing junction, and the removal route of casing and protecgulum can effectively increase steam and dust, and then increases the removal resistance of steam and dust, can effectively form another waterproof dustproof sealing layer, effectively prevents water or dirt from by the junction infiltration of protecgulum and casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a cable connector according to an embodiment of the present invention;

fig. 2 is an exploded view of a cable connector according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a cable connector according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing of the cable connector according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a front cover of a cable connector according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a waterproof rubber gasket of a cable connector according to an embodiment of the present invention;

fig. 7 is an exploded view of a crimping assembly of a cable connector according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a crimping piece of a cable connector according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a fixing member of a cable connector according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a sleeve of a cable connector according to an embodiment of the present invention.

Description of the main elements

Cable connector 100

Housing 10

First space 11

Second space 12

External thread 13

Front cover 20

Internal thread 21

Gasket 30

Waterproof rubber mat 40

First

circular holes

41, 42

Second circular hole 43

Crimping assembly 50

Sleeve 51

First plane 511

Second plane 512

First sleeve holes

513, 514

Second sleeve hole 515

Fixing member 52

First fixing member 521

Second fixing member 522

Fixing

grooves

523, 524, 525, 526

First connection holes

527, 528

Second connection holes

529, 5210

Third connection hole 5211

Crimping piece 53

First crimping piece 531

Second crimping piece 532

First crimp grooves

533, 534, 535, 536

Second crimp grooves

537, 538

First crimp holes

539, 5310, 5311, 5312

Second crimp hole 5313

Connecting piece 54

First bolts

541, 542

Second bolt 543

Nuts

544, 545

Cable 200

First cables

201, 202

A second cable 203.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The terms "first," "second," and "third," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. To the extent that the term "includes" and any variations thereof are used in either the detailed description or the claims, as well as the appended drawings, this is intended to cover non-exclusive inclusions.

Fig. 1, fig. 2, and fig. 3 show schematic structural diagrams of the cable connector 100 provided in this embodiment, the cable connector 100 includes a housing 10 and a front cover 20, the housing 10 is detachably connected to the front cover 20, wherein a cover surface of the front cover 20 is provided with a hole for the cable 200 to penetrate through the cable connector 100, and the front cover 20 has an opening in the form of a large circular hole for all the cables 200 to penetrate through, or openings are respectively formed for each cable 200.

In this embodiment, the cable 200 connected by the cable connector 100 may have a specification of 1.5-35mm2, wherein the cable 200 may include

first cables

201 and 202 and a second cable 203, the

first cables

201 and 202 have a specification of 6-35 mm2, and the second cable 203 has a specification of 1.5-2.5 mm 2. In some applications, the cable connector 100 may only connect the

first cables

201 and 202.

In this embodiment, the housing 10 and the front cover 20 may be in threaded connection, for example, as shown in a schematic structural diagram of the housing 10 shown in fig. 4 and a schematic structural diagram of the front cover 20 shown in fig. 5, the housing 10 may be provided with an external thread 13, the front cover 20 may be provided with an internal thread 21, and the external thread 13 and the internal thread 21 cooperate to achieve the threaded connection between the housing 10 and the front cover 20.

As shown in fig. 4, the housing 10 includes a first space 11 and a second space 12, wherein, the portion of the housing 10 of the second space 12 may be configured as a retractable fan-tooth structure, and during the fastening process of the housing 10 and the front cover 20, the housing 10 and the front cover 20 will press the fan-teeth to be folded along three hundred and sixty degrees in the radial direction and in the axial direction, so as to press the components disposed in the second space 12.

As shown in fig. 2 and 3, the cable connector 100 further includes a crimping assembly 50 and a waterproof rubber gasket 40, the crimping assembly 50 is disposed in the first space 11 of the housing 10, the waterproof rubber gasket 40 is disposed between the crimping assembly 50 and the front cover 20, and the waterproof rubber gasket 40 is disposed in the second space 12 of the housing 10, wherein when the housing 10 is tightly connected to the front cover 20, the crimping assembly 50 and the front cover 20 will press the waterproof rubber gasket 40, so that the waterproof rubber gasket 40 expands radially to fill the housing 10 and tightly contact the inner surface of the housing 10, so as to prevent moisture from entering the crimping assembly 50 from the front cover 20 to corrode the crimping assembly 50.

Fig. 6 is a schematic structural diagram of a conventional waterproof rubber mat 40 in this embodiment, and the waterproof rubber mat 40 may be made of a material with better elasticity, such as TPE soft rubber, sealing silica gel, and the like. The waterproof rubber mat 40 can be provided with first round holes 41 and 42 and/or second round holes 43, the first round holes 41 and 42 can be used for the

first cables

201 and 202 to pass through, and the second round hole 43 can be used for the second cable 203 to pass through. Generally, the diameter of the first

circular holes

41, 42 is set to be the same as the specification of the

first cables

201, 202, and the diameter of the second circular hole 43 is set to be the same as the specification of the second cable 203. When the housing 10 is tightly connected with the front cover 20, the crimping component 50 and the front cover 20 will also press the waterproof rubber gasket 40, so that the first round holes 41 and 42 press the

first cables

201 and 202 and tightly contact the

first cables

201 and 202, and the second round hole 43 presses the second cable 203 and tightly contact the second cable 203, so as to prevent external moisture from entering the crimping component 50 through the

first cables

201 and 202 and the gap between the second cable 203 and the cable connector 100 to corrode the crimping component 50.

As shown in fig. 6, in general, two first

circular holes

41 and 42 are symmetrically disposed, and a second circular hole 43 is disposed at the center of the waterproof rubber gasket 40, so as to reduce the processing difficulty of the waterproof rubber gasket 40 and facilitate the installation of the cable 200.

As shown in fig. 2 and 3, the joint between the housing 10 and the front cover 20 may be further provided with a gasket 30 to prevent moisture from entering the interior of the housing 10 from the joint between the housing 10 and the front cover 20, and as shown in fig. 3, if the housing 10 and the front cover 20 are screwed, the moisture still needs to pass through the threads of the housing 10 and the front cover 20 on the flow path, which will increase the flow path and resistance of the moisture, and will also play a role of waterproofing.

In this embodiment, the gasket 30 may be made of a material with good elasticity, such as TPE soft rubber, sealing silicone, etc.

Fig. 7 shows an exploded view of the crimping assembly 50, the crimping assembly 50 includes a sleeve 51, a fixing member 52 and a crimping piece 53, the crimping piece 53 is disposed in conformity with the fixing member 52, and the crimping piece 53 is disposed inside the fixing member 52, and the fixing member 52 and the crimping piece 53 are integrally fitted into the sleeve 51. The fixing member 52 is made of an insulating material, such as PA66 or PA6+10% GF. The crimping pieces 53 are made of a conductive material, for example, the crimping pieces 53 may be made of brass or aluminum alloy. In this embodiment, the fixing member 52 may be made of a material that is less expensive than the crimping pieces 53, so that a large amount of cost can be saved.

As shown in fig. 3 and 7, the number of the fixing members 52 may be two, and includes a first fixing member 521 and a second fixing member 522; the crimping pieces 53 may be two pieces including the first crimping pieces 531 and the second crimping pieces 532. The first crimping piece 531 is attached to the inner side of the first fixing member 521, the second crimping piece 532 is attached to the inner side of the second fixing member 522, the first fixing member 521, the first crimping piece 531, the second crimping piece 532 and the second fixing member 522 can be connected and fastened by the connecting member 54, the cable 200 (including the

first cable

201, 202 and/or the second cable 203) is inserted between the first crimping piece 531 and the second crimping piece 532, and the cable 200 is crimped and fastened after the first crimping piece 531 and the second crimping piece 532 are fastened by the connecting member 54.

In the present embodiment, the spacing between the first crimping pieces 531 and the second crimping pieces 532 can be adjusted using the connecting member 54 to accommodate cables 200 of different specifications.

As shown in fig. 3 and 7, the connector 54 may include a combination of

first bolts

541 and 542 and

nuts

544 and 545 for crimping the

first cables

201 and 202 when fastened, and a separate second bolt 543 for crimping the second cable 203 when fastened. In this embodiment, the

first bolts

541, 542 and/or the second bolt 543 may be socket head bolts, so that the

first bolts

541, 542 and/or the second bolt 543 may be conveniently adjusted and disassembled by using a conventional socket head wrench.

As shown in a schematic configuration of the crimping pieces 53 in fig. 8, the first crimping pieces 531 and the second crimping pieces 532 are each provided with two first crimping

grooves

533, 534, 535, 536, and the first crimping

grooves

533, 534, 535, 536 are used for crimping the

first cables

201, 202, wherein the first crimping

grooves

533, 534, 535, 536 may be provided in a semi-cylindrical shape to match the shape of the

first cables

201, 202. The first and second crimping

pieces

531, 532 may be further provided with second crimping

grooves

537, 538 for crimping the second cable 203, and the second crimping

grooves

537, 538 may be also provided in a semi-cylindrical shape to match the shape of the second cable 203.

In this embodiment, the

first crimp grooves

533, 534, 535, 536 and the

second crimp grooves

537, 538 may be provided with cross-threads therein so that the first crimp pieces 531 and the second crimp pieces 532 may well lock the copper core or the aluminum core of the cable 200 when crimping the cable 200.

As shown in fig. 8, the first crimping pieces 531 and the second crimping pieces 532 are each provided with two first crimping

holes

539, 5310, 5311, 5312, the first crimping

holes

539, 5310, 5311, 5312 are used for passing the

first bolts

541, 542 therethrough to fasten the first crimping pieces 531 and the second crimping pieces 532, wherein the first crimping

holes

539, 5310, 5311, 5312 may be provided on center lines of the first crimping pieces 531 and the second crimping pieces 532. The second pressing piece 532 is provided with a second pressing hole 5313, the second pressing hole 5313 passes through the second pressing groove 538, the second pressing hole 5313 is used for the second bolt 543 to pass through and then press and fasten the second cable 203, wherein the second pressing hole 5313 can also be arranged on the center line of the second pressing piece 532 and arranged in line with the first

pressing holes

5311 and 5312, so as to reduce the cost of opening the hole.

As shown in the schematic configuration of the holder 52 in fig. 9, the first holder 521 and the second holder 522 may be provided with fixing

grooves

523, 524, 525, 526 at positions corresponding to the first crimping

grooves

533, 534, 535, 536, and when the cable 200 is crimped, the first crimping

grooves

533, 534, 535, 536 may be attached to the fixing

grooves

523, 524, 525, 526, so that the first crimping pieces 531 may be well attached to the inner side of the first holder 521, and the second crimping pieces 532 may be well attached to the inner side of the second holder 522.

In this embodiment, the size of the first fixing member 521 and the second fixing member 522 may be slightly larger than the size of the first crimping piece 531 and the second crimping piece 532, and the periphery of the first fixing member 521 and the second fixing member 522 may be provided with steps having the same thickness as the first crimping piece 531 and the second crimping piece 532 in the thickness direction of the first crimping piece 531 and the second crimping piece 532, so that the first crimping piece 531 may be completely put into the first fixing member 521, and the second crimping piece 532 may be completely put into the second fixing member 522, functioning to protect the first crimping piece 531 and the second crimping piece 532.

As shown in fig. 9, the first fixing member 521 is provided with first connection holes 527, 528 corresponding to the first crimping

holes

539, 5310, and the first connection holes 527, 528 are stepped holes for placing

nuts

544, 545. Second connection holes 529 and 5210 are formed in the second fixing member 522 at positions corresponding to the first crimping

holes

5311 and 5312, and the head ends of the

first bolts

541 and 542 are disposed at the ends of the second connection holes 529 and 5210. The second fixing member 522 has a third connecting hole 5211 corresponding to the second pressing hole 5313, and the second bolt 543 can pass through the third connecting hole 5211 to press and fasten the second cable 203.

As shown in FIG. 9, the sides of the first and

second fixtures

521 and 522 remote from the first and second crimping

pieces

531 and 532 may be provided as flat surfaces to facilitate the tightening of the

first bolts

541, 542 and/or the second bolt 543.

Fig. 10 shows a schematic structural view of the sleeve 51, the sleeve 51 is hollow inside, and the fixing member 52 and the crimping piece 53 are connected by the connecting member 54 and can be integrally inserted into the sleeve 51. The socket 51 is provided with a first plane 511 and a second plane 512, the first plane 511 is used for matching with the plane of the first fixing piece 521, the second plane 512 is used for matching with the plane of the second fixing piece 522, and a certain gap can exist between the first plane 511 and the first fixing piece 521 and between the second plane 512 and the second fixing piece 522, so that the connecting piece 54 can adjust the fastening distance between the first crimping piece 531 and the second crimping piece 532.

As shown in fig. 10, the pipe wall of the casing 51 on the second plane 512 side may be provided with first casing holes 513, 514 and/or a second casing hole 515, where the positions of the first casing holes 513, 514 correspond to the positions of the first connection holes 529, 5210, and the position of the second casing hole 515 corresponds to the position of the third connection hole 5211. When the connecting member 54 is the

first bolts

541 and 542 and the

nuts

544 and 545 and/or the second bolts 543, the diameters of the first sleeve holes 513 and 514 should be smaller than the outer diameters of the bolt heads of the

first bolts

541 and 542, and the diameter of the second sleeve hole 515 should be smaller than the outer diameter of the bolt head of the second bolt 543, so that the

first bolts

541 and 542 and/or the second bolt 543 cannot slide through the first sleeve holes 513 and 514 and the second sleeve hole 515.

In this embodiment, the first bushing holes 513 and 514 and the second bushing hole 515 allow a wrench to extend into the bushing 51 to adjust the

first bolts

541 and 542 and/or the second bolt 543, so as to conveniently adjust the fastening distance between the first crimping pieces 531 and the second crimping pieces 532.

As shown in fig. 3, in the embodiment, the fixing member 52, the pressing piece 53 and the connecting member 54 are all integrally disposed in the sleeve 51, so that when the connecting member 54 is adjusted, the connecting member 54 will not slip out of the sleeve 51 and fall off, and there is no problem that the installation of the cable connector 100 is affected because the connecting member 54 falls off and is not easy to find. Especially, if the connection member 54 includes the combination of the

first bolts

541, 542 and the

nuts

544, 545 and/or the second bolt 543, the

first bolts

541, 542, the

nuts

544, 545 and/or the second bolt 543 will not fall off the sleeve 51 during adjustment, and thus the installation of the cable connector 100 will not be affected by the falling of the

first bolts

541, 542, the

nuts

544, 545 and/or the second bolt 543.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A cable connector comprises a shell and a front cover which are detachably connected, and is characterized in that a crimping component is arranged in the shell, a waterproof rubber mat is arranged between the crimping component and the front cover, and when the shell is fixedly connected with the front cover, the crimping component and the front cover extrude the waterproof rubber mat to expand along the radial direction.

2. The cable connector according to claim 1, wherein the waterproof rubber gasket defines two or three circular holes.

3. The cable connector according to claim 1, wherein said housing is threadably connected to said front cover.

4. The cable connector according to claim 1, wherein a joint of said housing and said front cover is provided with a spacer.

5. The cable connector according to any of claims 1-4, wherein said crimping assembly comprises a sleeve having an insulating retainer disposed therein, said retainer having crimping tabs for crimping the cable disposed therein.

6. The cable connector according to claim 5, wherein the crimping pieces are two pieces connected by a connecting member, wherein a distance between the two crimping pieces is adjustable by the connecting member.

7. The cable connector according to claim 6, wherein said two fixing members are also connected by said connecting member, said two crimping pieces are disposed between said two fixing members, and said two crimping pieces are disposed respectively in abutment with one of said two fixing members.

8. The cable connector according to claim 7, wherein the connecting member is a combination of a first bolt and a nut, two first press-connecting holes are formed on each of the two press-connecting plates, a first connecting hole for placing the nut is formed on one of the fixing members, a second connecting hole is formed on the other fixing member, and the first bolt passes through the second connecting hole, the first press-connecting hole and the first connecting hole to connect with the nut.

9. The cable connector according to claim 7, wherein the connecting member is a bolt, one of the crimping pieces has a second crimping hole, the fixing member attached to the crimping piece has a third connecting hole, and the bolt passes through the third connecting hole and the second crimping hole to crimp the cable.

10. The cable connector according to claim 5, wherein the ferrule defines a first ferrule bore or/and a second ferrule bore.