CN111244667B

CN111244667B - 120 Non-switching integrated connector structure

Info

Publication number: CN111244667B
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 Basha Technology Development Co., Ltd.
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2024-12-17
Anticipated expiration: 2039-12-19
Also published as: CN111244667A

Abstract

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

Description

120 Non-switching integrated connector structure

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, power DistributionUnit) 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 component and the socket component of the existing high-voltage high-current connector is basically limited to 90 degrees and 180 degrees, other angles are applied and adjusted by the connected cable, if the cable is thicker and harder, the operation is difficult, the space is occupied, and the disassembly is inconvenient during maintenance.

The current 120-degree connector is mainly divided into two modes, namely a technical scheme for realizing 120-degree rotation angle through switching of two socket terminals, wherein the scheme firstly increases the cost of one terminal, secondly can influence the electric connection quality of the connector, is unfavorable for maintaining the vibration resistance in practical application and achieving the purposes of lightening the whole vehicle and reducing the energy consumption, thirdly, the mode of switching the two terminals leads to the increase of contact resistance and temperature rise at the contact point of connection so as to influence the performance of the connector, and the second mode is threaded switching, because the structure is limited by space, the effective length of a locking thread is shorter, the fastening effect is not ideal, the vibration resistance of the product is poor, the loosening can occur in the use process, the conditions of increasing the contact resistance, overhigh temperature rise and burning the connector are caused, or the contact is basically separated, the vehicle is powered off, and the safety of the vehicle is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a 120-degree non-switching integrated connector structure which is directly connected with a cable through an integrated terminal structure, reduces the cost of the terminal and the contact resistance of connection, and has the characteristics of simple structure, low cost and convenient assembly and disassembly.

In order to solve the technical problems, the invention provides a 120-degree non-switching integrated connector structure, which comprises a plug shell, wherein the plug shell comprises a plug end, the front end of the plug end is used for being plugged with a matched socket, and a wiring end, the rear end of the plug end is used for being connected with a cable, an included angle between the plug end and the wiring end is 120 degrees, a rubber core assembly extending along the plug 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 plug end and protrudes out of the rubber core assembly, 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 assembly is further arranged between the rear end of the rubber core assembly and the inner wall of the wiring end.

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

Further, a first waterproof ring sleeved outside the cable is further arranged in the wiring terminal, the first waterproof ring is located between the positioning rubber core and the tail cover, and the periphery of the first waterproof ring is abutted to the inner wall of the wiring terminal.

Furthermore, the front end of the inserting end is provided with an inserting groove for inserting, the periphery of the inserting groove is sleeved with a second waterproof ring, the outer side end part of the inserting groove is sleeved with a pressing plate for inwards pressing the rubber core assembly, and the outer side of the pressing plate is provided with a plurality of shielding sheets which are arranged around the pressing plate in a clamping mode.

Further, symmetrical positioning parts are arranged on the upper surface and the lower surface of the rubber core assembly, which correspond to the positions of the wiring ends, stop parts which are abutted to the front ends of the positioning parts are arranged on the inner walls of the wiring ends in a protruding mode, first elastic buckles are arranged at the rear ends of the positioning parts, and first clamping grooves which are clamped with the first elastic buckles are formed in the inner walls of the wiring ends.

Further, 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 part, and a groove for accommodating the positioning protrusion is arranged at the rear end of the stop part.

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

Further, the front end of the rubberizing core is protruding to be equipped with at least one first buckle, the rear end both sides of rubberizing core are protruding to be equipped with at least one second buckle, be equipped with on the lower rubber core a plurality of respectively with first buckle and the third draw-in groove of second buckle one-to-one lock.

Further, the positioning rubber core comprises a main body sleeved outside the cable and propped against the rear end of the rubber core assembly, and two positioning sheets respectively arranged on two sides of the front end of the main body, wherein the two positioning sheets respectively extend forwards to be arranged on the left side and the right side of the rear end of the lower rubber core, second elastic buckles are arranged on the outer sides of the two positioning sheets, and fourth clamping grooves which are clamped with the second elastic buckles are formed in the inner wall of the wiring terminal.

Further, the 120 ° non-switching integral connector structure further comprises a handle detachably arranged outside the plug housing.

The invention has the following beneficial effects:

The invention adopts the rubber core component and the connecting terminal which are 120 degrees as the shape of the plug shell, firstly, the connecting terminal can be fixed through one rubber core component, compared with the structure that two terminals are used for switching and two rubber cores corresponding to the rubber core component are needed to be fixed one by one in the prior art, the insulation plastic part for fixing is reduced, the cost of the part and the cost of a development mould are reduced, the total cost of the product is greatly reduced, secondly, the rear end of the integrated terminal structure can be directly connected with a cable, the additional switching terminal is removed, the cost of the terminal is reduced, the structure without switching is effectively reduced, the contact point of connection is reduced, the contact resistance between the cable and the connecting terminal is reduced, the structure with the cable which is directly connected can be connected and conducted in a crimping mode, the connection is firm and reliable, the temperature rise condition is good, the condition of overheat and loose power failure caused is not generated, the total quality of the product is reduced, the requirement of light weight and energy consumption of the vehicle is met, and the assembling and disassembling process of the rubber core is simplified, the assembling and disassembling process is required, the rubber core is positioned, and the assembling and disassembling cost is low, and the assembling and disassembling cost of the rubber core is easy.

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 application and constitute a part of this specification, are incorporated in and constitute a part of this specification and do not limit the application in any way, and in which:

FIG. 1 is a schematic view of a 120 ° non-mating integral connector structure according to an embodiment;

FIG. 2 is a cross-sectional view of a 120℃non-adapter integral connector structure in an embodiment;

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

FIG. 4 is a schematic diagram of an embodiment of an internal core assembly and connection terminals combined together;

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

FIG. 6 is a schematic perspective view of a positioning gum core according to an embodiment;

FIG. 7 is a front view of a positioning cartridge in an embodiment;

Fig. 8 is an assembly schematic of the components of the embodiment incorporated into the plug housing.

Detailed Description

In order to more fully understand the technical content of the present invention, the present invention will be further described and illustrated with reference to the accompanying drawings and specific embodiments, wherein the descriptions of "first" and "second" in the text are used for distinguishing different components, etc., and do not represent the sequence, and the descriptions of "first" and "second" are not limited to be of different types.

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.

Examples

As shown in fig. 1 to 8, the 120 ° non-switching integrated connector structure shown in this embodiment includes a plug housing 1, where the plug housing 1 includes a plug end 11 with a front end for plugging with a mating socket and a terminal 12 with a rear end for connecting with a cable 2, and an included angle between the plug end 11 and the terminal 12 is 120 degrees, so that the plug housing has a 120 degree corner, which facilitates the later plugging with the socket, and avoids the problem of difficult plugging caused by the influence of external environment; the plug housing 1 is internally provided with a rubber core component 3 which is arranged along the inserting end 11 and the wiring end 12 in an extending manner, namely, the rubber core component has a 120-degree corner like the structure of the plug housing, in order to facilitate the rubber core component to be installed in the plug housing, a through hole 13 which is arranged in a penetrating manner from front to back is arranged in the plug housing, the size of the through hole at the inserting end is matched with the size of the front end of the rubber core component arranged in the inserting end, the size of the through hole at the wiring end is far greater than the maximum size of the rubber core component, after the rubber core component is installed in the through hole, a relatively large gap exists between two sides of the rubber core component and the inner wall of the through hole at the wiring end, so that a positioning rubber core 4 for fixing the rubber core component 3 is also arranged between the rear end of the rubber core component and the inner wall of the wiring end, namely, the gap between the rubber core component and the inner wall of the through hole is filled through the positioning rubber core and is matched with the plug housing for fixing, the rubber core component 3 is internally provided with a connecting terminal 5, the front end of the connecting terminal 5 extends along the length direction of the inserting end 11 and protrudes out of the rubber core component 3, so that an inserting interface 14 is formed between the front end of the connecting terminal and the inner wall of the connecting terminal, the rear ends of the connection terminals 5 are extended in the length direction of the terminals 12 and are crimped with the cable 2 inserted into the rubber core assembly.

In this embodiment, the 120 ° non-switching integrated connector structure further includes a tail cap 6 sleeved on the cable 2, where the tail cap 6 is fastened to the inner side of the tail of the terminal 12, and is used to clamp and lock the cable, so as to prevent the cable from being affected by external tension and to prevent the connection reliability of the cable and the connection terminal, and a first waterproof ring 21 sleeved outside the cable 2 is further disposed in the terminal 12, where the first waterproof ring 21 is located between the positioning rubber core 4 and the tail cap 6, and the outer periphery of the first waterproof ring 21 abuts against the inner wall of the terminal 12 (i.e. the inner wall of the through hole) and is used to seal and waterproof the rear end of the plug housing.

In this embodiment, the front end of the plugging end 11 is provided with a slot 111 for plugging, and the slot is annularly arranged at the periphery of the plugging port 14, the periphery of the slot 111 is sleeved with a second waterproof ring 112 for waterproofing after the plugging port and the socket shell are plugged, the outer end of the slot 111 is sleeved with a pressing plate 7 for pressing the front end of the rubber core assembly inwards in a buckling manner, and a plurality of shielding sheets 8 surrounding the pressing plate 7 are clamped at the outer side of the pressing plate 7.

Specifically, the upper and lower surfaces of the position corresponding to the wiring terminal 11 in the rubber core assembly 3 are provided with vertically symmetrical positioning parts 31, the upper and lower sides of the inner wall of the wiring terminal 12 are respectively provided with a convex stop part 121 which is in one-to-one correspondence with the front ends of the two positioning parts 31, the forward advancing direction of the rubber core assembly is stopped by utilizing the cooperation of the stop parts and the positioning parts to avoid the forward advancing direction of the rubber core assembly from exceeding the installation position, the rear ends of the two positioning parts 31 are provided with outward first elastic buckles 311, the upper and lower sides of the inner wall of the wiring terminal are respectively provided with first clamping grooves 122 which are in one-to-one correspondence with the two first elastic buckles 311, the backward withdrawing direction of the rubber core assembly is stopped by utilizing the cooperation of the first elastic buckles and the first clamping grooves to avoid the backward withdrawing direction of the rubber core assembly after the assembly, and the rubber core assembly is fixed in the plug housing by utilizing the combined structure of the plurality of buckling positions and the 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 stop portion 121 is provided with a groove 123 for accommodating the positioning protrusion 312, and the positioning protrusion and the groove are matched, so that the rubber core assembly can conveniently identify the positioning installation position, and 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 covered on the upper end of the lower rubber core 32, a second clamping groove 321 with an opening at the upper end is arranged on the inner side of the lower rubber core 32, a protruding portion 51 which is clamped with the second clamping groove 321 is arranged on the outer side of the connecting terminal 5 in a protruding mode, after the front end of the connecting terminal passes 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, and the two positioning portions 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 upper rubber core 33 is provided with two first buckles 331 in a protruding manner, two second buckles 332 are provided on two sides of the rear end of the upper rubber core 33 in a protruding manner, and 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 are formed in the lower rubber core 32.

In this embodiment, the positioning rubber core 4 includes a main body 41 sleeved outside the cable 2 and abutting against the rear end of the rubber core assembly 3, and two positioning pieces 42 respectively disposed on two sides of the front end of the main body 41, where the two positioning pieces 42 respectively extend forward to two sides of the rear end of the lower rubber core 32, that is, the two positioning pieces fill the gap between the rubber core assembly and the inner wall of the through hole, three second elastic buckles 421 facing outward are disposed on the outer sides of the two positioning pieces 42, fourth clamping grooves 124 clamped with the second elastic buckles 421 are disposed on the inner wall of the terminal 12, so as to fix the positioning rubber core and further strengthen the fixing force on the rubber core assembly, and a plurality of sliding grooves 422 extending along the length of the positioning pieces are disposed on the inner sides of the positioning pieces, so that the contact area between the inner sides of the positioning pieces and the lower rubber core is reduced, and the friction resistance when the positioning rubber core is inserted is convenient for sliding of the positioning pieces.

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

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

In a specific embodiment of the present invention, two through holes symmetrically arranged in the plug housing and used for assembling the rubber core assembly and other corresponding parts are provided, that is, the 120 ° non-switching integrated connector structure is a multi-port structure with two plug interfaces.

The specific assembly process of the plug component in the embodiment comprises the steps of firstly crimping the connecting terminal and the stripped cable, secondly loading the crimped terminal component into the lower rubber core, thirdly covering the upper rubber core on the lower rubber core, fourthly obliquely inserting the assembled rubber core component into the plug shell by using a tool or manually for installation, pressing the buckling positions on the upper rubber core and the lower rubber core to be blocked with corresponding clamping grooves in the plug shell, fifthly pressing the positioning rubber core into the shell, blocking the buckle on the positioning rubber core with the corresponding clamping grooves in the plug shell, sixthly installing and blocking the first waterproof ring with the tail cover, and seventhly installing the second waterproof ring, the pressing plate and the shielding sheet in place in sequence to complete assembly.

While the foregoing has been provided by embodiments of the present invention with particularity, the principles and modes of carrying out the embodiments of the present invention have been described in detail by way of example only, and are not intended to limit the invention to the particular embodiments and modes of carrying out the invention, as will be apparent to those skilled in the art from consideration of this disclosure.

Claims

1. The 120-degree non-switching integrated connector structure comprises a plug shell, wherein the plug shell comprises a plug end and a wiring end, the front end of the plug end is used for being plugged with a matched socket, the rear end of the plug shell is used for being connected with a cable, an included angle between the plug end and the wiring end is 120 degrees, a rubber core assembly extending along the plug end and the wiring end is arranged in the plug shell, namely, the rubber core assembly has a 120-degree corner like the structure of the plug shell, a through hole penetrating through the plug shell from front to back is arranged in the plug shell, the size of the through hole at the plug end is matched with the size of the front end of the rubber core assembly arranged in the plug end, the size of the through hole at the wiring end is larger than the largest size of the rubber core assembly, a positioning rubber core used for fixing the rubber core assembly is further arranged between the rear end of the rubber core assembly and the inner wall of the rubber core assembly, a connecting terminal is arranged in the rubber core assembly, the front end of the connecting terminal extends along the plug end and protrudes out of the rubber core assembly, and the rear end of the connecting terminal is arranged along the extending and is in compression joint with the wiring end.

2. The 120 ° non-transition integral connector structure of claim 1, further comprising a tail cap that fits over said cable, said tail cap snap-fitting with a tail portion of said terminal.

3. The 120 ° 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 is abutted to the inner wall of the terminal.

4. The 120-degree non-switching integrated connector structure according to claim 3, wherein the front end of the plugging end is provided with a slot for plugging, the periphery of the slot is sleeved with a second waterproof ring, the outer end part of the slot is sleeved with a pressing plate for pressing the rubber core assembly inwards, and the outer side of the pressing plate is provided with a plurality of shielding sheets arranged around the pressing plate.

5. The 120 ° non-switching integrated connector structure according to any one of claims 1-4, wherein symmetrical positioning portions are provided on upper and lower surfaces of the rubber core assembly at positions corresponding to the terminals, a stop portion abutting against a front end of the positioning portion is provided on an inner wall of the terminal in a protruding manner, a first elastic buckle is provided at a rear end of the positioning portion, and a first clamping groove is provided on an inner wall of the terminal and is engaged with the first elastic buckle.

6. The 120 ° non-switching integrated connector structure according to claim 5, wherein a positioning protrusion with a small front end and a large rear end is provided in the middle of the front end of the positioning portion, and a groove for accommodating the positioning protrusion is provided at the rear end of the stopper portion.

7. The 120-degree non-switching 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 covered on the upper end of the lower rubber core, a second clamping groove is formed in the inner side of the lower rubber core, a protruding portion which is clamped with the second clamping groove is protruding on the outer side of the connecting terminal, and the two positioning portions are arranged on the bottom surface of the lower rubber core and the surface of the upper rubber core.

8. The 120 ° non-switching integrated connector structure according to claim 7, wherein at least one first buckle is provided on the front end protrusion of the upper rubber core, at least one second buckle is provided on both sides of the rear end of the upper rubber core, and a plurality of third clamping grooves respectively corresponding to the first buckle and the second buckle one by one are provided on the lower rubber core.

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 propped 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, wherein the two positioning pieces respectively extend forwards to be arranged on the left side and the right side of the rear end of the lower rubber core, second elastic buckles are arranged on the outer sides of the two positioning pieces, and fourth clamping grooves which are clamped with the second elastic buckles are formed in the inner wall of the wiring terminal.

10. The 120 ° non-transition integral connector structure of claim 9, further comprising a handle removably disposed on an exterior of said plug housing.