CN111244667A

CN111244667A - 120 integrative connector structure of non-switching

Info

Publication number: CN111244667A
Application number: CN201911316776.3A
Authority: CN
Inventors: 林培燕; 徐平安; 林国军; 付帅
Original assignee: Shenzhen Busbar Sci Tech Development Co Ltd
Current assignee: Shenzhen Busbar Sci Tech Development Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-06-05

Abstract

The invention discloses a 120-degree non-switching integrated connector structure which comprises a plug shell, wherein the plug shell comprises a plugging end and a wiring end, the front end of the plugging end is used for being plugged with a matched socket, the rear end of the wiring end is used for being connected with a cable, an included angle between the plugging end and the wiring end is 120 degrees, a rubber core component extending along the plugging end and the wiring end is arranged in the plug shell, a connecting terminal is arranged in the rubber core component, the front end of the connecting terminal extends along the plugging end and protrudes out of the rubber core component, and the rear end of the connecting terminal extends along the wiring end and is connected with the cable; and a positioning rubber core used for fixing the rubber core component is also arranged between the rear end of the rubber core component and the inner wall of the wiring end. The integrated terminal structure is directly connected with the cable, so that the cost of the terminal and the connection contact resistance are reduced, and the integrated terminal structure has the characteristics of simple structure, low cost and convenience in assembly and disassembly.

Description

120 integrative connector structure of non-switching

Technical Field

The invention relates to the technical field of connectors, in particular to a 120-degree non-switching integrated connector structure.

Background

The high-voltage high-current connector is an important circuit element applied to a Power Distribution Unit (PDU) of a passenger electric vehicle, and has an important influence on the circuit performance of the passenger electric vehicle.

However, the connection angle between the plug part and the socket part of the existing high-voltage large-current connector is basically limited to 90 degrees and 180 degrees, the application of other angles needs to be adjusted by a connected cable, the operation is difficult and the space is occupied if the cable is thick and hard, and the disassembly is inconvenient during maintenance.

The existing 120-degree connector mainly comprises two modes, the first mode is a technical scheme of realizing a 120-degree corner through switching of two socket terminals, the first mode is to increase the cost of one terminal, the second mode can influence the electric connection quality of the connector, the third mode is to be unfavorable for maintaining the vibration-resistant performance in practical application and achieving the purposes of light weight of the whole vehicle and reducing energy consumption, and the third mode is to increase the contact resistance and temperature rise due to more connected contact points through switching of the two terminals, so that the performance of the connector is influenced; the second is threaded switching, because this structure receives the effective length of space restriction lock screw thread shorter, and the fastening effect is unsatisfactory, and the resistant vibration performance of product is relatively poor, probably appears the pine in the use and takes off, leads to contact resistance increase, the too high and condition of burning out the connector of temperature rise, perhaps the contact breaks away from basically will make the vehicle outage, influences the security of vehicle.

Disclosure of Invention

The invention provides a 120-degree non-switching integrated connector structure aiming at the defects of the prior art, the integrated connector structure is directly connected with a cable through an integrated terminal structure, the terminal cost and the connection contact resistance are reduced, and the connector structure has the characteristics of simple structure, low cost and convenience in assembly and disassembly.

In order to solve the technical problem, the invention provides a 120-degree non-switching integrated connector structure which comprises a plug shell, wherein the plug shell comprises a plugging end and a wiring end, the front end of the plugging end is used for being plugged with a matched socket, the rear end of the wiring end is used for being connected with a cable, the included angle between the plugging end and the wiring end is 120 degrees, a rubber core assembly extending along the plugging end and the wiring end is arranged in the plug shell, a connecting terminal is arranged in the rubber core assembly, the front end of the connecting terminal extends along the plugging end and protrudes out of the rubber core assembly, and the rear end of the connecting terminal extends along the wiring end and is connected with the cable; and a positioning rubber core used for fixing the rubber core component is also arranged between the rear end of the rubber core component and the inner wall of the wiring end.

Furthermore, the 120-degree non-switching integrated connector structure further comprises a tail cover tightly sleeved on the cable, and the tail cover is buckled with the tail part of the terminal.

Furthermore, still be equipped with the suit in the wiring end outside the cable first waterproof circle, first waterproof circle is located between location rubber core and the tail-hood, just the periphery of first waterproof circle with the inner wall butt of wiring end.

Furthermore, a slot for inserting is arranged at the front end of the inserting end, a second waterproof ring is sleeved on the periphery of the slot, and a pressing plate which presses the rubber core assembly inwards is sleeved at the outer side end of the slot; the outer side of the pressing plate is clamped with a plurality of shielding sheets arranged around the pressing plate.

Furthermore, symmetrical positioning parts are arranged on the upper surface and the lower surface of the rubber core component at positions corresponding to the wiring ends, and stopping parts abutted against the front ends of the positioning parts are convexly arranged on the inner walls of the wiring ends; the rear end of location portion is equipped with first elasticity buckle, be equipped with on the inner wall of wiring end with the first draw-in groove of first elasticity buckle block.

Furthermore, a positioning protrusion with a small front end and a large rear end is arranged in the middle of the front end of the positioning portion, and a groove for accommodating the positioning protrusion is formed in the rear end of the stopping portion.

Further, the rubber core assembly comprises a lower rubber core for fixing the connecting terminal and an upper rubber core covering the upper end of the lower rubber core, a second clamping groove is formed in the inner side of the lower rubber core, and a protruding portion clamped with the second clamping groove is convexly arranged on the outer side of the connecting terminal; the two positioning parts are arranged on the bottom surface of the lower rubber core and the surface of the upper rubber core.

Furthermore, the front end of the gluing core is provided with at least one first buckle in a protruding mode, the two sides of the rear end of the gluing core are provided with at least one second buckle in a protruding mode, and the lower gluing core is provided with a plurality of third clamping grooves which are buckled with the first buckles and the second buckles in a one-to-one mode respectively.

Furthermore, the positioning rubber core comprises a main body sleeved outside the cable and abutted against the rear end of the rubber core assembly and two positioning pieces respectively arranged on two sides of the front end of the main body, and the two positioning pieces respectively extend forwards and are arranged on the left side and the right side of the rear end of the lower rubber core; two the outside of spacer all is equipped with second elasticity buckle, be equipped with on the inner wall of wiring end with the fourth draw-in groove of second elasticity buckle block.

Further, the 120 ° non-adapter connector structure further includes a handle detachably disposed outside the plug housing.

The invention has the following beneficial effects:

the plug comprises a plug shell, a rubber core assembly and a connecting terminal, wherein the rubber core assembly and the connecting terminal are 120 degrees as same as the shape of the plug shell, firstly, the connecting terminal can be fixed through only one rubber core assembly, and compared with the existing structure that two terminals are used for switching and two rubber cores corresponding to the two terminals are used for fixing one by one, the insulating plastic parts for fixing are reduced, the part cost and the cost for developing a die are reduced, and the total cost of products is greatly reduced; the rear end of the integrated terminal structure can be directly connected with the cable, an additional switching terminal is removed, the terminal cost is reduced, the structure without switching is adopted, the connected contact points are effectively reduced, the contact resistance between the cable and the connecting terminal is reduced, the structure with the connecting terminal directly connected with the cable can be connected and conducted in a crimping mode, the structure with the connecting terminal and the cable are firm and reliable in connection, the temperature rise condition is good, the situations of overheating due to poor contact and power failure due to loosening are avoided, the safety performance is good, and the use condition is stable and reliable; thirdly, the total mass of the product is reduced, and the requirements of vehicle light weight and energy consumption reduction are met; fourthly, the assembling and disassembling process can be simplified, only the positioning rubber core and the rubber core assembly need to be assembled or disassembled, and the number of assembled and disassembled parts is small; the invention has the characteristics of simple structure, low cost and convenient assembly and disassembly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:

fig. 1 is a schematic diagram of a 120 ° non-transition integrated connector structure in an embodiment;

fig. 2 is a cross-sectional view of a 120 ° non-transition integrated connector structure in an embodiment;

FIG. 3 is a schematic view of a plug housing according to an embodiment;

FIG. 4 is a schematic view of the combination of the inner rubber core assembly and the connecting terminal in the embodiment;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a perspective view of the positioning rubber core in the embodiment;

FIG. 7 is a front view of the positioning rubber core in the embodiment;

fig. 8 is an assembly diagram of the components of the embodiment shown assembled into a plug housing.

Detailed Description

For a fuller understanding of the technical aspects of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings; it should be noted that, if "first" or "second" is described in the text, it is used to distinguish different components, and the like, and does not represent the order of precedence, and does not limit "first" and "second" to be different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 8, the 120 ° non-adapter integrated connector structure shown in this embodiment includes a plug housing 1, where the plug housing 1 includes a plugging end 11 at a front end for plugging with a mating socket and a terminal 12 at a rear end for connecting with a cable 2, and an included angle between the plugging end 11 and the terminal 12 is 120 degrees, so that the plug housing has a corner of 120 degrees, which facilitates later plugging with the socket and avoids a problem of difficult plugging due to an influence of an external environment; a rubber core component 3 extending along the plugging end 11 and the wiring end 12 is arranged in the plug shell 1, namely, the rubber core component and the plug shell have the same structure with a 120-degree corner, and in order to facilitate the rubber core component to be arranged in the plug shell, a through hole 13 which penetrates through the plug shell from front to back is arranged in the plug shell, the size of the through hole at the plugging end is matched with the size of the front end of the rubber core component arranged in the plugging end, the size of the through hole at the wiring end is far larger than the maximum size of the rubber core component, after the rubber core component is arranged in the through hole, a larger gap exists between the two sides of the rubber core component and the inner wall of the through hole at the terminal end, thereby a positioning rubber core 4 for fixing the rubber core component 3 is arranged between the rear end of the rubber core component and the inner wall of the wiring end, namely, the positioning rubber core is used for filling the gap between the rubber core component and the inner wall of the through hole and is matched with the plug shell for fixing; be equipped with connecting terminal 5 in the gluey core subassembly 3, connecting terminal 5's front end extends along the length direction of grafting end 11 and sets up and protrusion in gluey core subassembly 3 to make and form interface 14 between connecting terminal front end and the grafting end inner wall, connecting terminal 5's rear end extends along the length direction of wiring end 12 and sets up and with insert gluey core subassembly in cable 2 crimping together.

In this embodiment, the 120 ° non-switching integrated connector structure further includes a tail cover 6 tightly sleeved on the cable 2, the tail cover 6 is fastened with the inner side of the tail of the terminal 12 for clamping and locking the cable, and the connection reliability between the cable and the connection terminal is prevented from being affected by external tension; still be equipped with the suit in wiring end 12 the outer first waterproof circle 21 of cable 2, first waterproof circle 21 is located between location rubber core 4 and tail-hood 6, and the periphery of first waterproof circle 21 and the inner wall of wiring end 12 (being the inner wall of through-hole) butt for seal waterproof is carried out to the rear end of plug housing.

In this embodiment, the front end of the inserting end 11 is provided with a slot 111 for inserting, the slot is annularly arranged on the periphery of the inserting port 14, the periphery of the slot 111 is sleeved with a second waterproof ring 112 for preventing water after the inserting port is inserted into the socket shell, the outer side end of the slot 111 is sleeved with a pressing plate 7 which is used for pressing the front end of the rubber core component inwards in a buckling manner, and the outer side of the pressing plate 7 is clamped with a plurality of shielding sheets 8 arranged around the pressing plate 7.

Specifically, the upper and lower surfaces of the position corresponding to the terminal 11 in the rubber core assembly 3 are provided with positioning portions 31 which are symmetrical up and down, the upper and lower sides of the inner wall of the terminal 12 are respectively provided with a protruding portion 121 which is respectively abutted against the front ends of the two positioning portions 31 in a one-to-one correspondence manner, and the forward advancing direction of the rubber core assembly is blocked by utilizing the matching of the protruding portions and the positioning portions, so that the rubber core assembly is prevented from exceeding the mounting position forwards; the rear ends of the two positioning parts 31 are provided with outward first elastic buckles 311, the upper side and the lower side of the inner wall of the wiring end are respectively provided with first clamping grooves 122 which are correspondingly clamped with the two first elastic buckles 311 one by one, and the backward withdrawing direction of the rubber core assembly is blocked by utilizing the matching of the first elastic buckles and the first clamping grooves, so that the rubber core assembly is prevented from falling out after being assembled; therefore, the rubber core assembly is fixed in the plug shell by utilizing the combined structure of the plurality of buckling positions and positioning.

Specifically, the middle of the front end of the positioning portion 31 is provided with a positioning protrusion 312 with a small front end and a large rear end, the rear end of the stopping portion 121 is provided with a groove 123 for accommodating the positioning protrusion 312, and the positioning protrusion and the groove are matched to facilitate the identification and positioning of the rubber core assembly, so that the alignment assembly of the first elastic buckle 311 and the first clamping groove 122 is ensured.

Specifically, the rubber core assembly 3 comprises a lower rubber core 32 for fixing the connecting terminal 5 and an upper rubber core 33 covering the upper end of the lower rubber core 32, a second clamping groove 321 with an open upper end is formed in the inner side of the lower rubber core 32, a protruding portion 51 clamped with the second clamping groove 321 is convexly formed in the outer side of the connecting terminal 5, and after the front end of the connecting terminal penetrates through the rubber core assembly, the protruding portion 51 can be clamped into the second clamping groove 321 from top to bottom so as to fix the connecting terminal; the two positioning parts 31 are respectively arranged on the bottom surface of the lower rubber core 32 and the surface of the upper rubber core 33.

Specifically, the front end of the gluing core 33 is provided with two first buckles 331 at intervals in a protruding manner, the two sides of the rear end of the gluing core 33 are provided with a second buckle 332 in a protruding manner, and the lower gluing core 32 is provided with a plurality of third clamping grooves 322 which are respectively buckled with the first buckles 331 and the second buckles 332 in a one-to-one correspondence manner.

In this embodiment, the positioning rubber core 4 includes a main body 41 sleeved outside the cable 2 and abutted against the rear end of the rubber core assembly 3, and two positioning pieces 42 respectively disposed at two sides of the front end of the main body 41, and the two positioning pieces 42 respectively extend forward and are disposed at two sides of the rear end of the lower rubber core 32, that is, the two positioning pieces are used to fill the gap between the rubber core assembly and the inner wall of the through hole; the outer sides of the two positioning pieces 42 are respectively provided with three outward second elastic buckles 421, and the inner wall of the wiring terminal 12 is provided with a fourth clamping groove 124 clamped with the second elastic buckles 421, so that the fixation of the positioning rubber core is realized and the fixing force of the rubber core assembly is further enhanced; it is equipped with a plurality of spouts 422 that extend the setting along its length in the inboard of spacer, reduces the contact area between spacer inboard and lower gluey core, reduces the frictional resistance when the location is glued the core and is inserted, the slip of the spacer of being convenient for.

Specifically, a transition plane 43 is concavely arranged on the outer side of the rear end of the positioning plate 42, so that a vertically arranged step surface 44 is formed between the transition plane 43 and the front end of the positioning plate 42, one end of each of the three second elastic buckles 421 is arranged on the step surface 44, and the other end of each of the second elastic buckles 421 extends backwards and is arranged above the transition plane 43; the inner side and the outer side of the front end part of the positioning sheet 42 are both provided with a chamfer inclined plane 423, the thickness of the front contact surface of the positioning sheet is reduced through the two chamfer inclined planes, and the inclined planes have a certain guiding function, so that the insertion and installation of the positioning rubber core are facilitated; the outside of the front end of the positioning piece 42 is an arc-shaped transition arc surface 424, the middle part of the transition arc surface 424 is a plane 425, and the transition arc surface can be better matched with a corner arc surface in the plug shell, so that the positioning piece can be conveniently inserted into the plug shell.

In an embodiment of the present invention, the 120 ° non-adapting integrated connector structure further includes a handle 9 detachably disposed outside the plug housing 1, and is used for fixing the plug housing after the plug housing is plugged into a mating socket.

In an embodiment of the invention, two through holes are symmetrically arranged in the plug housing and used for assembling the rubber core assembly and other corresponding parts, namely, the 120-degree non-adapter-integrated connector structure is a multi-port structure with two insertion ports.

The specific assembly process of the plug component in the above embodiment is as follows: firstly, crimping a connecting terminal and a stripped cable together, secondly, installing a crimped terminal assembly into a lower rubber core, thirdly, covering an upper rubber core on the lower rubber core, fourthly, obliquely inserting the assembled rubber core assembly into a plug shell by utilizing a tool or manpower, pressing to the bottom to enable buckling positions on the upper rubber core and the lower rubber core to be clamped with corresponding clamping grooves in the plug shell, fifthly, installing a positioning rubber core in a pressing mode to enable buckles on the positioning rubber core to be clamped with corresponding clamping grooves in the plug shell, sixthly, installing and clamping a first waterproof ring and a tail cover, and seventhly, installing a second waterproof ring, a pressing plate and a shielding sheet in place in sequence to complete assembly.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. A120-degree non-switching integrated connector structure comprises a plug shell and is characterized in that the plug shell comprises a plugging end and a wiring end, wherein the front end of the plugging end is used for being plugged with a matched socket, the rear end of the wiring end is used for being connected with a cable, an included angle between the plugging end and the wiring end is 120 degrees, a rubber core component extending along the plugging end and the wiring end is arranged in the plug shell, a connecting terminal is arranged in the rubber core component, the front end of the connecting terminal extends along the plugging end and protrudes out of the rubber core component, and the rear end of the connecting terminal extends along the wiring end and is connected with the cable; and a positioning rubber core used for fixing the rubber core component is also arranged between the rear end of the rubber core component and the inner wall of the wiring end.

2. A 120 ° non-patch unitary connector structure according to claim 1, further comprising a tail cap that fits over said cable, said tail cap engaging said terminal tail portion.

3. The 120-degree non-switching integrated connector structure according to claim 2, wherein a first waterproof ring sleeved outside the cable is further arranged in the terminal, the first waterproof ring is located between the positioning rubber core and the tail cover, and the periphery of the first waterproof ring abuts against the inner wall of the terminal.

4. The 120-degree non-adapter-connection integrated connector structure according to claim 3, wherein a slot for inserting is formed in the front end of the inserting end, a second waterproof ring is sleeved on the periphery of the slot, and a pressing plate which presses the rubber core assembly inwards is sleeved at the outer side end of the slot; the outer side of the pressing plate is clamped with a plurality of shielding sheets arranged around the pressing plate.

5. A120 ° non-switching integrated connector structure according to any one of claims 1-4, wherein the upper and lower surfaces of the rubber core assembly at the position corresponding to the terminal are provided with symmetrical positioning parts, and the inner wall of the terminal is provided with a protruding stop part which abuts against the front end of the positioning part; the rear end of location portion is equipped with first elasticity buckle, be equipped with on the inner wall of wiring end with the first draw-in groove of first elasticity buckle block.

6. A120 ° non-adapter integral connector structure according to claim 5, wherein the positioning part is provided with a positioning protrusion with a small front end and a large rear end in the middle of the front end, and the rear end of the stopping part is provided with a groove for accommodating the positioning protrusion.

7. The 120-degree non-adapter-connection integrated connector structure according to claim 6, wherein the rubber core assembly comprises a lower rubber core for fixing the connecting terminal and an upper rubber core covering the upper end of the lower rubber core, a second clamping groove is formed in the inner side of the lower rubber core, and a protruding portion engaged with the second clamping groove is protruded from the outer side of the connecting terminal; the two positioning parts are arranged on the bottom surface of the lower rubber core and the surface of the upper rubber core.

8. The 120-degree non-adapter connector structure as claimed in claim 7, wherein the front end of the upper rubber core is provided with at least one first buckle in a protruding manner, the two sides of the rear end of the upper rubber core are provided with at least one second buckle in a protruding manner, and the lower rubber core is provided with a plurality of third slots which are respectively buckled with the first buckles and the second buckles in a one-to-one correspondence manner.

9. The 120-degree non-switching integrated connector structure according to claim 8, wherein the positioning rubber core comprises a main body sleeved outside the cable and abutted against the rear end of the rubber core assembly and two positioning pieces respectively arranged on two sides of the front end of the main body, and the two positioning pieces respectively extend forwards and are arranged on the left side and the right side of the rear end of the lower rubber core; two the outside of spacer all is equipped with second elasticity buckle, be equipped with on the inner wall of wiring end with the fourth draw-in groove of second elasticity buckle block.

10. A 120 ° non-patch unitary connector structure according to claim 9, further comprising a handle removably disposed on an exterior of said plug housing.