CN111244667A - 120 integrative connector structure of non-switching - Google Patents

Abstract

The invention discloses a 120° non-transfer integrated connector structure, comprising a plug housing, the plug housing comprising a front end for plugging with a matching socket and a rear end for connecting with a cable The terminal, the angle between the plug terminal and the terminal is 120 degrees, the plug housing is provided with a rubber core component extending along the plug terminal and the terminal, and the rubber core component is provided with a connecting terminal, so The front end of the connection terminal extends along the plug end and protrudes out of the rubber core assembly, and the rear end of the connection terminal extends along the connection terminal and is connected with the cable; the rear end of the rubber core assembly A positioning rubber core for fixing the rubber core assembly is also arranged between the terminal and the inner wall of the terminal. The invention is directly connected to the cable through the integrated terminal structure, thereby reducing the cost of the terminal and the contact resistance of the connection, and also has the characteristics of simple structure, low cost, and easy assembly and disassembly.

Description

A 120° non-transfer integrated connector structure

technical field

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

Background technique

The high-voltage and high-current connector is an important circuit component used in a power distribution unit (PDU, Power Distribution Unit) of a passenger electric vehicle, which has an important impact 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 and high-current connector is basically limited to 90 degrees and 180 degrees. The application of other angles needs to be adjusted by the connected cables. It is difficult to operate and takes up more space, and it is also inconvenient to disassemble during maintenance.

The current 120° connector is mainly divided into two ways. The first is a technical solution to realize a 120° rotation angle through two socket terminals. This solution increases the cost of one terminal. It affects the electrical connection quality of the connector, which is not conducive to the maintenance of vibration resistance in practical applications and the purpose of reducing the weight of the vehicle and reducing energy consumption. The resistance and temperature rise will increase, which will affect the performance of the connector; the second type is a threaded adapter, because the structure is limited by the space and the effective length of the locking thread is short, the tightening effect is not ideal, and the product is resistant to vibration. Poor, it may come loose during use, resulting in increased contact resistance, high temperature rise and burnt connectors, or the basic separation of the contact will cause the vehicle to be powered off and affect the safety of the vehicle.

SUMMARY OF THE INVENTION

In view of the above existing technical defects, the present invention provides a 120° non-transfer integrated connector structure, which is directly connected to the cable through the integrated terminal structure, which reduces the cost of the terminal and the contact resistance of the connection, and also has the advantages of simple structure, Low cost, easy assembly and disassembly.

In order to solve the above technical problems, the present invention provides a 120° non-transfer integrated connector structure, including a plug housing, the plug housing includes a front end for plugging with a matching socket, and a rear end for For the terminal connected to the cable, the included angle between the plug terminal and the terminal is 120 degrees, and the plug housing is provided with a rubber core assembly extending along the plug terminal and the terminal. A connection terminal is provided, the front end of the connection terminal extends along the plug end and protrudes out of the rubber core assembly, and the rear end of the connection terminal extends along the connection terminal and is connected with the cable; A positioning rubber core for fixing the rubber core assembly is further provided between the rear end of the rubber core assembly and the inner wall of the terminal.

Further, the 120° non-transfer integrated connector structure further includes a tail cover that is fastened on the cable, and the tail cover is fastened to the tail of the terminal.

Further, the terminal is also provided with a first waterproof ring sleeved outside the cable, the first waterproof ring is located between the positioning rubber core and the tail cover, and the first waterproof ring is The outer periphery is in contact with the inner wall of the terminal.

Further, the front end of the insertion end is provided with a slot for insertion, the outer periphery of the slot is sleeved with a second waterproof ring, and the outer end of the slot is sleeved with the glue to press inwardly. The pressing plate of the core assembly; the outer side of the pressing plate is clamped with a plurality of shielding sheets arranged around it.

Further, the upper and lower surfaces of the rubber core assembly at the positions corresponding to the terminals are provided with symmetrical positioning portions, and the inner walls of the terminals are protrudingly provided with stop portions that abut the front ends of the positioning portions. The rear end of the positioning portion is provided with a first elastic buckle, and the inner wall of the terminal is provided with a first clamping slot that is engaged with the first elastic buckle.

Further, 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.

Further, the rubber core assembly includes a lower rubber core for fixing the connection terminals and an upper rubber core covered on the upper end of the lower rubber core, the inner side of the lower rubber core is provided with a second slot, so The outer side of the connection terminal is protruded with a protruding portion that engages with the second slot; the two positioning portions are provided on the bottom surface of the lower rubber core and the surface of the upper rubber core.

Further, the front end of the upper rubber core is protruded with at least one first buckle, both sides of the rear end of the upper rubber core are protruded with at least one second buckle, and the lower rubber core is provided with at least one second buckle. There are a plurality of third card slots which are respectively engaged with the first and second buckles in a one-to-one correspondence.

Further, the positioning rubber core includes a main body sleeved outside the cable and abutting against the rear end of the rubber core assembly, and two positioning sheets respectively disposed on both sides of the front end of the main body, and the two positioning sheets are respectively It extends forward and is placed on the left and right sides of the rear end of the lower rubber core; the outer sides of the two positioning pieces are provided with second elastic buckles, and the inner wall of the terminal is provided with the second elastic buckles The fourth card slot that is engaged.

Further, the 120° non-transfer integrated connector structure further includes a handle detachably provided outside the plug housing.

The present invention has the following beneficial effects:

In the present invention, a rubber core assembly and a connecting terminal with a shape of 120 degrees in the same shape as the plug shell are used. First, the connecting terminal can be fixed by only one rubber core assembly. The two-one-one structure with the corresponding rubber cores is fixed, which reduces the number of insulating plastic parts used for fixing, reduces the cost of parts and the cost of developing molds, and greatly reduces the total cost of the product; the second is through the integrated terminal structure. The terminal can be directly connected to the cable, eliminating the extra transfer terminal, reducing the cost of the terminal, and the structure without transfer effectively reduces the contact points of the connection, reduces the contact resistance between the cable and the connecting terminal, and the connection The structure of the direct connection between the terminal and the cable can be connected by means of crimping. The connection between the two is firm and reliable, the temperature rise is good, and there will be no overheating due to poor contact and power failure due to loosening. The safety performance is excellent, and the use The situation is stable and reliable; the third is to reduce the total mass of the product to meet the needs of vehicle lightweight and energy consumption; the fourth is to simplify the assembly and disassembly process, only need to assemble or disassemble the positioning rubber core and rubber core components, the assembly and disassembly Fewer parts; the present invention has the characteristics of simple structure, low cost, and easy assembly and disassembly.

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

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of this application, and do not constitute an improper limitation of the present invention. In the accompanying drawings:

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

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

3 is a schematic diagram of a plug housing in an embodiment;

4 is a schematic diagram of the combination of the internal rubber core assembly and the connecting terminal in the embodiment;

Fig. 5 is the exploded view of Fig. 4;

Fig. 6 is the three-dimensional schematic diagram of positioning rubber core in the embodiment;

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

FIG. 8 is a schematic diagram of the assembly of the various components into the plug housing according to the embodiment.

Detailed ways

In order to more fully understand the technical content of the present invention, the present invention will be further introduced and described below with reference to the accompanying drawings and specific embodiments; It is used to distinguish different components, etc., and does not represent the order, nor does it limit that "first" and "second" are of different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the The embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative efforts, fall within the protection scope of the present invention.

Example

As shown in FIG. 1 to FIG. 8, a 120° non-transfer integrated connector structure shown in this embodiment includes a plug housing 1, and the plug housing 1 includes a front end for plugging with a matching socket. The terminal 11 and the rear end are used to connect with the cable 2 terminal 12. The angle between the plug terminal 11 and the terminal 12 is 120 degrees, so that the plug shell has a 120 degree angle, which is convenient for later plugging with the socket. , to avoid the problem of difficult plugging caused by the influence of the external environment; the plug housing 1 is provided with a rubber core assembly 3 extending along the plug terminal 11 and the terminal 12, that is, the rubber core assembly has the same structure as the plug housing. 120-degree corner, and in order to facilitate the insertion of the rubber core assembly into 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 at the plug end. The size of the front end of the rubber core component inside matches, and the size of the through hole at the terminal is much larger than the maximum size of the rubber core component. After the rubber core component is installed in the through hole, the two sides of the rubber core component are connected to the terminal. There is a relatively large gap between the inner walls of the through holes, so that there is also a positioning rubber core 4 for fixing the rubber core assembly 3 between the rear end of the rubber core assembly and the inner wall of the terminal, that is, filling the rubber core assembly by positioning the rubber core. The gap between the inner wall of the through hole and the plug shell is fixed; the rubber core assembly 3 is provided with a connecting terminal 5, and the front end of the connecting terminal 5 extends along the length direction of the plug end 11 and protrudes out of the rubber core assembly 3. , so that a plug port 14 is formed between the front end of the connection terminal and the inner wall of the plug terminal, and the rear end of the connection terminal 5 extends along the length direction of the terminal 12 and is crimped with the cable 2 inserted into the rubber core assembly.

In this embodiment, the 120° non-transition integrated connector structure further includes a tail cover 6 that is fastened on the cable 2 , and the tail cover 6 is fastened to the inner side of the tail of the terminal 12 for clamping and locking the cable. to prevent the cable from being affected by external tension on its connection reliability with the connection terminal; the terminal 12 is also provided with a first waterproof ring 21 sleeved outside the cable 2, and the first waterproof ring 21 is located in the positioning rubber core. 4 and the tail cover 6, and the outer circumference of the first waterproof ring 21 is in contact with the inner wall of the terminal 12 (ie, the inner wall of the through hole) to seal and waterproof the rear end of the plug housing.

In this embodiment, the front end of the plug-in terminal 11 is provided with a slot 111 for insertion, and the slot is arranged around the outer periphery of the insertion port 14 , and the outer periphery of the slot 111 is provided with a second waterproof ring 112 for insertion Waterproof after the interface is inserted into the socket housing, the outer end of the slot 111 is sheathed with a pressure plate 7 that presses the front end of the rubber core assembly inwardly by means of buckle, and the outer side of the pressure plate 7 is clamped with a plurality of surrounding settings. the shielding sheet 8.

Specifically, the upper and lower surfaces of the rubber core assembly 3 at the positions corresponding to the terminal 11 are provided with vertically symmetrical positioning portions 31 , and the upper and lower sides of the inner wall of the terminal 12 are protruded with the front ends of the two positioning portions 31 , respectively. The stopper portion 121 corresponding to the stop, uses the cooperation of the stopper portion and the positioning portion to stop the forward advancing direction of the rubber core assembly, so as to prevent it from exceeding the installation position forward; the rear ends of the two positioning portions 31 are provided with The first elastic buckles 311 facing outward, the upper and lower sides of the inner wall of the terminal are provided with first slots 122 that engage with the two first elastic buckles 311 in a one-to-one correspondence. The matching of the rubber core assembly blocks the backward withdrawal direction of the rubber core assembly to prevent it from falling out after being assembled; thus, the rubber core assembly is fixed in the plug housing by using the combination structure of the above-mentioned multiple buckles and positioning.

Specifically, 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, and the rear end of the stop portion 121 is provided with a groove 123 for accommodating the positioning protrusion 312. The matching of the positioning protrusion and the groove is used. , which is convenient for the rubber core assembly to identify the positioning and installation position, and ensure the alignment and assembly of the first elastic buckle 311 and the first card slot 122 .

Specifically, the rubber core assembly 3 includes a lower rubber core 32 for fixing the connection 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 slot with an open upper end. 321, the outer side of the connection terminal 5 is protruded with a raised portion 51 that engages with the second slot 321. After the front end of the connection terminal passes through the rubber core assembly, the raised portion 51 can be snapped into the second slot from top to bottom. 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 upper rubber core 33 is protruded with two first buckles 331 , 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 a second buckle 332 . There are a plurality of third card slots 322 which are respectively engaged with the first buckles 331 and the second buckles 332 in one-to-one correspondence.

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 both sides of the front end of the main body 41 , and the two positioning pieces 42 They are respectively extended forward and placed 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 two positioning sheets; Two elastic buckles 421, the inner wall of the terminal 12 is provided with a fourth slot 124 that is engaged with the second elastic buckle 421, which is used to realize the fixing of the positioning rubber core and further strengthen the fixing force to the rubber core assembly; The inner side of the positioning sheet is provided with a plurality of sliding grooves 422 extending along its length, which reduces the contact area between the inner side of the positioning sheet and the lower rubber core, reduces the frictional resistance when the positioning rubber core is inserted, and facilitates the sliding of the positioning sheet.

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 stepped 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 Set on the stepped surface 44, the other end of the second elastic buckle 421 extends backward and is placed above the transition plane 43; The inclined surface reduces the thickness of the contact surface of the front end of the positioning piece, and the inclined surface has a certain guiding effect, so as to facilitate the insertion and installation of the positioning rubber core; It is a flat surface 425, and the transition arc surface can be better matched with the corner arc surface in the plug housing, which facilitates the insertion of the positioning piece into the plug housing.

In a specific embodiment of the present invention, the 120° non-transfer integrated connector structure further includes a handle 9 detachably disposed outside the plug housing 1 for fixing the plug housing after being inserted into the matching socket.

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

The specific assembly process of the plug component in the above embodiment is as follows: the first step is to crimp the connecting terminal and the stripped cable together, the second step is to put the crimped terminal assembly into the lower rubber core, and the third step The upper rubber core is covered with the lower rubber core. The fourth step is to insert the assembled rubber core assembly into the plug housing obliquely with tooling or manual installation, and press it to the end so that the buckles on the upper and lower rubber cores correspond to the slots in the plug housing. The fifth step is to press and install the positioning rubber core, so that the buckle on the positioning rubber core is locked with the corresponding slot in the plug shell, and the sixth step is to install and stop the first waterproof ring and the tail cover. The seventh step is to install the second waterproof ring, the pressure plate and the shielding sheet in place in order to complete the assembly.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. The principles and implementations of the embodiments of the present invention are described in this paper by using specific examples. The descriptions of the above embodiments are only applicable to help understand the embodiments of the present invention. At the same time, for those of ordinary skill in the art, according to the embodiments of the present invention, there will be changes in the specific implementation and application scope. To sum up, the content of this specification should not be construed as a limitation of the present invention.

Claims (10)

1. A 120° non-transfer integrated connector structure, comprising a plug housing, characterized in that the plug housing comprises a front end for plugging with a matching socket and a rear end for connecting with a cable. The connecting terminal, the angle between the plug terminal and the terminal is 120 degrees, the plug housing is provided with a rubber core component extending along the plug terminal and the terminal, and the rubber core component is provided with a connecting terminal , the front end of the connection terminal extends along the plug end and protrudes out of the rubber core assembly, and the rear end of the connection terminal extends along the terminal and is connected with the cable; the rubber core assembly A positioning rubber core for fixing the rubber core assembly is further provided between the rear end and the inner wall of the terminal. 2 . The 120° non-transition integrated connector structure according to claim 1 , further comprising a tail cover that is fastened to the cable, and the tail cover is fastened to the tail of the terminal. 3 . 3 . The 120° non-transfer integrated connector structure according to claim 2 , wherein the terminal is further provided with a first waterproof ring sleeved outside the cable, and the first waterproof ring is 3 . It is located between the positioning rubber core and the tail cover, and the outer circumference of the first waterproof ring is in contact with the inner wall of the terminal. 4 . The 120° non-transfer integrated connector structure according to claim 3 , wherein the front end of the plug-in end is provided with a slot for insertion, and the outer periphery of the slot is sleeved with a second waterproof The outer end of the slot is sleeved with a pressure plate that presses the rubber core assembly inwardly; the outer side of the pressure plate is clamped with a plurality of shielding sheets arranged around it. 5 . The 120° non-transfer integrated connector structure according to claim 1 , wherein the rubber core assembly is provided with symmetrical positioning on the upper and lower surfaces corresponding to the terminal positions. 6 . The inner wall of the terminal is protruded with a stop part that abuts against the front end of the positioning part; the rear end of the positioning part is provided with a first elastic buckle, and the inner wall of the terminal is provided with a The first card slot to which the first elastic buckle is engaged. 6 . The 120° non-transfer integrated connector structure according to claim 5 , wherein the front end of the positioning portion is provided with a positioning protrusion with a small front end and a large rear end, and the rear end of the stop portion is provided with a positioning protrusion in the middle. 7 . A groove for accommodating the positioning protrusion is provided. 7 . The 120° non-transfer integrated connector structure according to claim 6 , wherein the rubber core assembly comprises a lower rubber core for fixing the connection terminal and a lower rubber core covered on the upper end of the lower rubber core. 8 . The upper rubber core of the lower rubber core is provided with a second slot on the inner side, and the outer side of the connection terminal is protruded with a raised portion that engages with the second slot; the two positioning parts It is arranged on the bottom surface of the lower rubber core and the surface of the upper rubber core. 8 . The 120° non-transfer integrated connector structure according to claim 7 , wherein the front end of the rubber core is protruded with at least one first buckle, and the rear end of the rubber core has two clasps. 9 . At least one second buckle is protruded on each side, and the lower rubber core is provided with a plurality of third buckles which are respectively engaged with the first buckle and the second buckle in a one-to-one correspondence. 9 . The 120° non-transfer integrated connector structure according to claim 8 , wherein the positioning rubber core comprises a main body sleeved outside the cable and abutting against the rear end of the rubber core assembly and a Two positioning sheets are respectively arranged on both sides of the front end of the main body, and the two positioning sheets are respectively extended forward and placed on the left and right sides of the rear end of the lower rubber core; the outer sides of the two positioning sheets are provided with second The elastic buckle, the inner wall of the terminal is provided with a fourth slot that is engaged with the second elastic buckle. 10 . The 120° non-transfer integrated connector structure according to claim 9 , further comprising a handle detachably provided outside the plug housing. 11 .

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