A 120° non-transfer integrated connector structure

Abstract

The present invention discloses a 120° non-transfer integrated connector structure, including a plug housing, the plug housing including a plug end for plugging with a matching socket at the front end and a wiring terminal for connecting with a cable at the rear end, the angle between the plug end and the wiring terminal is 120 degrees, a rubber core component extending along the plug end and the wiring terminal is provided in the plug housing, a connecting terminal is provided in the rubber core component, the front end of the connecting terminal is extended along the plug end and protrudes from the rubber core component, the rear end of the connecting terminal is extended along the wiring terminal and connected with the cable; a positioning rubber core for fixing the rubber core component is also provided between the rear end of the rubber core component and the inner wall of the wiring terminal. The present invention is directly connected to the cable through an integrated terminal structure, which reduces the terminal cost and the contact resistance of the connection, and also has the characteristics of simple structure, low cost, and easy assembly and disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a 120° non-transition integrated connector structure. Background Art

[0002] High-voltage and high-current connectors are important circuit components used in the power distribution unit (PDU) of passenger electric vehicles, and have a significant impact on the circuit performance of passenger electric vehicles.

[0003] However, the connection angles between the plug and socket parts of existing high-voltage and high-current connectors are basically limited to 90 degrees and 180 degrees. The application of other angles needs to be adjusted by the connected cables. If the cables are thicker and harder, they are more difficult to operate and take up more space. It is also inconvenient to disassemble during maintenance.

[0004] The current 120° connector is mainly divided into two types. The first is a technical solution that achieves a 120° turn by transferring two socket terminals. This solution not only increases the cost of one terminal, but also affects the electrical connection quality of the connector, which is not conducive to maintaining vibration resistance in actual applications and achieving the purpose of lightweight and energy consumption of the whole vehicle. Third, the two-terminal transfer method causes more contact points to be connected, which will increase the contact resistance and temperature rise, thereby affecting the performance of the connector. The second is a threaded transfer. Because of the space limitation of this structure, the effective length of the locking thread is short, the tightening effect is not ideal, the vibration resistance of the product is poor, and it may become loose during use, resulting in increased contact resistance, excessive temperature rise and burning of the connector, or the contact is basically disconnected, which will cause the vehicle to lose power and affect the safety of the vehicle. Summary of the invention

[0005] In view of the above-mentioned existing technical defects, the present invention provides a 120° non-transfer integrated connector structure, which is directly connected to the cable through an integrated terminal structure, reducing the terminal cost and the contact resistance of the connection, and also has the characteristics of simple structure, low cost, and easy assembly and disassembly.

[0006] In order to solve the above technical problems, the present invention provides a 120° non-transfer integrated connector structure, including a plug shell, the plug shell including a plug end at the front end for plugging into a matching socket and a wiring terminal at the rear end for connecting to a cable, the included angle between the plug end and the wiring terminal is 120 degrees, a rubber core assembly extending along the plug end and the wiring terminal is provided in the plug shell, a connecting terminal is provided in the rubber core assembly, the front end of the connecting terminal extends along the plug end and protrudes from the rubber core assembly, the rear end of the connecting terminal extends along the wiring terminal and is connected to the cable; a positioning rubber core for fixing the rubber core assembly is also provided between the rear end of the rubber core assembly and the inner wall of the wiring terminal.

[0007] Furthermore, the 120° non-transition integrated connector structure also includes a tail cover tightly sleeved on the cable, and the tail cover is buckled with the tail of the terminal.

[0008] Furthermore, a first waterproof ring is provided inside the wiring terminal and is sleeved on the outside of the cable. The first waterproof ring is located between the positioning rubber core and the tail cover, and the outer periphery of the first waterproof ring abuts against the inner wall of the wiring terminal.

[0009] Furthermore, a slot for plugging is provided at the front end of the plug-in end, a second waterproof ring is sleeved on the outer periphery of the slot, and a pressure plate for pressing the rubber core assembly inward is sleeved on the outer end of the slot; a plurality of shielding sheets are arranged around the pressure plate.

[0010] Furthermore, the rubber core component is provided with symmetrical positioning parts on the upper and lower surfaces corresponding to the position of the terminal, and the inner wall of the terminal is protruded with a stopper that abuts against the front end of the positioning part; the rear end of the positioning part is provided with a first elastic clip, and the inner wall of the terminal is provided with a first slot that engages with the first elastic clip.

[0011] Furthermore, 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 stop portion.

[0012] Furthermore, the rubber core assembly includes a lower rubber core for fixing the connecting terminal and an upper rubber core covering the upper end of the lower rubber core, the inner side of the lower rubber core is provided with a second card groove, and the outer side protrusion of the connecting terminal is provided with a protrusion that engages with the second card groove; the two positioning parts are arranged on the bottom surface of the lower rubber core and the surface of the upper rubber core.

[0013] Furthermore, the front end protrusion of the upper rubber core is provided with at least one first buckle, the rear end sides of the upper rubber core are both protruded with at least one second buckle, and the lower rubber core is provided with a plurality of third buckle grooves which respectively correspond to the first buckles and the second buckles.

[0014] Furthermore, the positioning rubber core includes a main body which is sleeved outside the cable and abutted against the rear end of the rubber core assembly, and two positioning pieces which are respectively arranged on both sides of the front end of the main body, and the two positioning pieces extend forward and are respectively arranged on the left and right sides of the rear end of the lower rubber core; a second elastic clip is provided on the outer side of the two positioning pieces, and a fourth slot which engages with the second elastic clip is provided on the inner wall of the wiring terminal.

[0015] Furthermore, the 120° non-transfer integrated connector structure also includes a handle detachably arranged on the outside of the plug housing.

[0016] The present invention has the following beneficial effects:

[0017] The present invention adopts a rubber core assembly and a connecting terminal that are 120 degrees in shape with the plug housing. First, the connecting terminal can be fixed by only one rubber core assembly. Compared with the existing structure that uses two terminals for transfer and requires two rubber cores corresponding to each other for fixation, the insulating plastic parts used for fixing are reduced, the cost of parts and the cost of developing molds are reduced, and the total cost of the product is greatly reduced; second, the rear end of the terminal structure can be directly connected to the cable through the integrated terminal structure, and the additional transfer terminal is removed, which reduces the terminal cost. The structure without transfer effectively reduces the contact points of the connection and reduces the contact resistance between the cable and the connecting terminal. The structure in which the connecting terminal is directly connected to the cable can be connected and conducted by crimping. The connection between the two is firm and reliable, and the temperature rise is good. There will be no overheating due to poor contact or power failure due to loosening. The safety performance is excellent and the use is stable and reliable; third, the total mass of the product is reduced to meet the needs of lightweight vehicles and reduced energy consumption; fourth, the assembly and disassembly process can be simplified, and only the positioning rubber core and rubber core assembly need to be assembled or disassembled, and there are fewer parts to assemble and disassemble; the present invention has the characteristics of simple structure, low cost, and easy assembly and disassembly.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 Schematic diagram of a 120° non-transfer integrated connector structure in an embodiment;

[0021] Figure 2 It is a cross-sectional view of a 120° non-transition integrated connector structure in an embodiment;

[0022] Figure 3 is a schematic diagram of a plug housing in an embodiment;

[0023] Figure 4 It is a schematic diagram of the internal rubber core component and the connecting terminal combined together in the embodiment;

[0024] Figure 5 for Figure 4 Exploded diagram of

[0025] Figure 6 It is a three-dimensional schematic diagram of positioning the rubber core in the embodiment;

[0026] Figure 7 It is a front view of the positioning rubber core in the embodiment;

[0027] Figure 8 It is a schematic diagram of assembling various components into the plug housing in the embodiment. DETAILED DESCRIPTION

[0028] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments below; it should be noted that if there are descriptions such as "first", "second", etc. in the text, they are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to be different types.

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figures 1 to 8 As shown, a 120° non-transfer integrated connector structure shown in this embodiment includes a plug housing 1, the plug housing 1 includes a plug end 11 at the front end for plugging with a matching socket and a wiring terminal 12 at the rear end for connecting with a cable 2, the included angle between the plug end 11 and the wiring terminal 12 is 120 degrees, so that the plug housing has a 120-degree turning angle, which is convenient for later plugging with the socket and avoids the problem of plugging difficulty caused by the influence of the external environment; a rubber core component 3 extending along the plug end 11 and the wiring terminal 12 is provided in the plug housing 1, that is, the rubber core component has a 120-degree turning angle as the structure of the plug housing, and in order to facilitate the installation of the rubber core component in the plug housing, a through hole 13 is provided in the plug housing from front to back, and the size of the through hole at the plug end is the same as that placed in the plug end. The dimensions of the front end of the rubber core component match, while the dimension of the through hole at the wiring terminal is much larger than the maximum dimension of the rubber core component. After the rubber core component is installed in the through hole, there is a relatively large gap between the two sides of the rubber core component and the inner wall of the through hole at the wiring terminal, so that a positioning rubber core 4 for fixing the rubber core component 3 is also provided between the rear end of the rubber core component and the inner wall of the wiring terminal, that is, the gap between the rubber core component and the inner wall of the through hole is filled by the positioning rubber core and fixed in cooperation with the plug housing; a connecting terminal 5 is provided in the rubber core component 3, and the front end of the connecting terminal 5 is extended along the length direction of the plug-in terminal 11 and protrudes from the rubber core component 3, so that an insertion interface 14 is formed between the front end of the connecting terminal and the inner wall of the plug-in terminal, and the rear end of the connecting terminal 5 is extended along the length direction of the wiring terminal 12 and is crimped together with the cable 2 inserted into the rubber core component.

[0032] In this embodiment, the 120° non-adapted integrated connector structure also includes a tail cover 6 that is tightly sleeved on the cable 2. The tail cover 6 is buckled with the inner side of the tail of the terminal 12 to clamp and lock the cable to prevent the cable from being subjected to external tension that affects the reliability of its connection with the connecting terminal. A first waterproof ring 21 that is sleeved on the outside of the cable 2 is also provided inside the terminal 12. The first waterproof ring 21 is located between the positioning rubber core 4 and the tail cover 6, and the outer periphery of the first waterproof ring 21 is in contact with the inner wall of the terminal 12 (i.e., the inner wall of the through hole) to seal and waterproof the rear end of the plug housing.

[0033] In this embodiment, a slot 111 for plugging is provided at the front end of the plug-in end 11, and the slot is ringed on the outer periphery of the plug-in interface 14. A second waterproof ring 112 is sleeved on the outer periphery of the slot 111 for waterproofing after the plug-in interface is plugged into the socket housing. A pressure plate 7 for pressing the front end of the rubber core assembly inward is sleeved on the outer end of the slot 111 by a snap-fitting manner, and a plurality of shielding sheets 8 arranged around the pressure plate 7 are clamped on the outer side of the pressure plate 7.

[0034] Specifically, the upper and lower surfaces of the rubber core component 3 at the positions corresponding to the wiring terminals 11 are provided with upper and lower symmetrical positioning parts 31, and the upper and lower sides of the inner wall of the wiring terminal 12 are both protruded with stop parts 121 which respectively correspond to the front ends of the two positioning parts 31, and the forward movement direction of the rubber core component is stopped by the cooperation of the stop part and the positioning part to prevent it from exceeding the installation position forward; a first elastic clip 311 facing outward is provided at the rear end of the two positioning parts 31, and the upper and lower sides of the inner wall of the wiring terminal are both provided with a first card groove 122 which corresponds to the two first elastic clips 311, and the backward exit direction of the rubber core component is stopped by the cooperation of the first elastic clip and the first card groove to prevent it from falling out after assembly; thereby, the rubber core component is fixed in the plug housing by the above-mentioned combined structure of multiple buckles and positioning.

[0035] Specifically, a positioning protrusion 312 with a small front end and a large rear end is provided in the middle of the front end of the positioning portion 31, and a groove 123 for accommodating the positioning protrusion 312 is provided at the rear end of the stop portion 121. The cooperation between the positioning protrusion and the groove facilitates the rubber core component to identify the positioning installation position and ensure the alignment and assembly of the first elastic buckle 311 and the first slot 122.

[0036] Specifically, the rubber core assembly 3 includes 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. The inner side of the lower rubber core 32 is provided with a second card slot 321 with an open upper end, and the outer side of the connecting terminal 5 is protruded with a protrusion 51 that engages with the second card slot 321. After the front end of the connecting terminal passes through the rubber core assembly, the protrusion 51 can be inserted into the second card slot 321 from top to bottom, thereby fixing 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.

[0037] Specifically, the front end of the upper rubber core 33 is protruded with two first buckles 331 at intervals, and the rear end of the upper rubber core 33 is protruded with a second buckle 332 on both sides, and the lower rubber core 32 is provided with multiple third buckle slots 322 that respectively correspond to the first buckles 331 and the second buckles 332.

[0038] In this embodiment, the positioning rubber core 4 includes a main body 41 which is sleeved on the outside of the cable 2 and abuts against the rear end of the rubber core assembly 3, and two positioning pieces 42 which are arranged on both sides of the front end of the main body 41, and the two positioning pieces 42 are respectively extended forward and arranged on both sides of the rear end of the lower rubber core 32, that is, the gap between the rubber core assembly and the inner wall of the through hole is filled by the two positioning pieces; three outward-facing second elastic buckles 421 are arranged on the outer sides of the two positioning pieces 42, and a fourth card groove 124 which is engaged with the second elastic buckle 421 is arranged on the inner wall of the terminal 12, which is used to fix the positioning rubber core and further strengthen the fixing force of the rubber core assembly; a plurality of sliding grooves 422 extending along the length of the positioning piece are arranged on the inner side of the positioning piece to reduce the contact area between the inner side of the positioning piece and the lower rubber core, reduce the friction resistance when the positioning rubber core is inserted, and facilitate the sliding of the positioning piece.

[0039] Specifically, a transition plane 43 is recessed on the outer side of the rear end of the positioning piece 42, so that a vertically arranged step surface 44 is formed between the transition plane 43 and the front end of the positioning piece 42, one end of the three second elastic buckles 421 is arranged on the step surface 44, and the other end of the second elastic buckle 421 extends backward and is placed above the transition plane 43; chamfered surfaces 423 are provided on the inner and outer sides of the front end of the positioning piece 42, and the thickness of the contact surface of the front end of the positioning piece is reduced by two chamfered surfaces, and the chamfer has a certain guiding effect, thereby facilitating the insertion and installation of the positioning rubber core; the outer side of the front end of the positioning piece 42 is an arc-shaped transition arc surface 424, and the middle part of the transition arc surface 424 is a plane 425, which can better cooperate with the corner arc surface in the plug housing through the transition arc surface, so as to facilitate the insertion of the positioning piece into the plug housing.

[0040] In a specific embodiment of the present invention, the 120° non-transfer integrated connector structure further includes a handle 9 detachably disposed on the outside of the plug housing 1, which is used to fix the plug housing after being plugged into a matching socket.

[0041] In a specific embodiment of the present invention, two through holes are symmetrically arranged in the plug housing and used to assemble the rubber core assembly and other corresponding parts, that is, the 120° non-transfer integrated connector structure is a multi-port structure with two plug interfaces.

[0042] The specific assembly process of the plug component in the above embodiment is: the first step is to crimp the connecting terminal and the stripped cable together, the second step is to install the crimped terminal assembly into the lower rubber core, the third step is to cover the upper rubber core with the lower rubber core, the fourth step is to use tooling or manual to obliquely insert the assembled rubber core assembly into the plug shell for installation, press it to the bottom so that the buckles on the upper and lower rubber cores are locked with the corresponding slots in the plug shell, the fifth step is to press and install the positioning rubber core so that the buckles on the positioning rubber core are locked with the corresponding slots in the plug shell, the sixth step is to install and lock the first waterproof ring with the tail cover, and the seventh step is to install the second waterproof ring, the pressure plate and the shielding sheet in place in turn to complete the assembly.

[0043] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A 120° non-transfer integrated connector structure, comprising a plug housing, the plug housing comprising a plug end at the front end for plugging into a matching socket and a wiring end at the rear end for connecting to a cable, the included angle between the plug end and the wiring end being 120 degrees, a rubber core component extending along the plug end and the wiring end being provided in the plug housing, that is, the rubber core component has a 120-degree turning angle as in the structure of the plug housing; a through hole penetrating from front to back is provided in the plug housing, and the size of the through hole at the plug end matches the size of the front end of the rubber core component placed in the plug end, while the size of the through hole at the wiring end is larger than the maximum size of the rubber core component, and a positioning rubber core for fixing the rubber core component is further provided between the rear end of the rubber core component and the inner wall of the wiring end; a connecting terminal is provided in the rubber core component, the front end of the connecting terminal is extended along the plug end and protrudes from the rubber core component, and the rear end of the connecting terminal is extended along the wiring end and crimped with the cable.

2. The 120° non-transition integrated connector structure according to claim 1, It is characterized in that It also includes a tail cover which is tightly sleeved on the cable, and the tail cover is buckled with the tail of the terminal.

3. The 120° non-transition integrated connector structure according to claim 2, It is characterized in that A first waterproof ring is also provided inside the wiring terminal and is sleeved on the outside of the cable. The first waterproof ring is located between the positioning rubber core and the tail cover, and the outer periphery of the first waterproof ring abuts against the inner wall of the wiring terminal.

4. The 120° non-transition integrated connector structure according to claim 3, It is characterized in that A slot for plugging is provided at the front end of the plug-in end, a second waterproof ring is sleeved on the outer periphery of the slot, a pressing plate for pressing the rubber core assembly inward is sleeved on the outer end of the slot; a plurality of shielding sheets arranged around the pressing plate are clamped on the outer side of the pressing plate.

5. The 120° non-transition integrated connector structure according to any one of claims 1 to 4, It is characterized in that The rubber core component is provided with symmetrical positioning parts on the upper and lower surfaces corresponding to the position of the terminal, and the inner wall of the terminal is protruded with a stopper that abuts against the front end of the positioning part; the rear end of the positioning part is provided with a first elastic clip, and the inner wall of the terminal is provided with a first slot that engages with the first elastic clip.

6. The 120° non-transition integrated connector structure according to claim 5, It is characterized in that 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 arranged at the rear end of the stop portion.

7. The 120° non-transition integrated connector structure according to claim 6, It is characterized in that The rubber core assembly includes a lower rubber core for fixing the connecting terminal and an upper rubber core covering the upper end of the lower rubber core, the inner side of the lower rubber core is provided with a second card groove, and the outer side protrusion of the connecting terminal is provided with a protrusion that engages with the second card groove; 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° non-transition integrated connector structure according to claim 7, It is characterized in that The front end of the upper rubber core is protruded with at least one first buckle, and both sides of the rear end of the upper rubber core are protruded with at least one second buckle. The lower rubber core is provided with a plurality of third buckle grooves that respectively correspond to the first buckle and the second buckle.

9. The 120° non-transition integrated connector structure according to claim 8, It is characterized in that The positioning rubber core includes a main body which is sleeved outside the cable and abutted against the rear end of the rubber core assembly, and two positioning pieces which are arranged on both sides of the front end of the main body, and the two positioning pieces extend forward and are respectively arranged on the left and right sides of the rear end of the lower rubber core; a second elastic buckle is provided on the outer side of the two positioning pieces, and a fourth slot which engages with the second elastic buckle is provided on the inner wall of the wiring terminal.

10. The 120° non-transition integrated connector structure according to claim 9, It is characterized in that The invention also comprises a handle which is detachably arranged on the outside of the plug housing.

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