阅读说明：本技术 一种单芯过孔连接器 (Single-core through-hole connector ) 是由 娄鹏 盛全德 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种单芯过孔连接器包括屏蔽套,外壳体,外壳体为中空壳体,外壳体通过安装支架将单芯过孔连接器固定在安装面板上；外壳体前端连接屏蔽套压接装置,后端连接波纹管固定装置,波纹管固定装置末端连接尾盖,所述波纹管固定装置包括波纹管卡环,波纹管卡环卡到波纹管后整体装入外壳体中,并由尾盖连接外壳体。本发明的单芯过孔连接器,其基础的作用是可提高线束生产效率,提高波纹管保持力,保证整车装配不脱出；另外还有以下作用：提高整车装配效率；安装支架与外壳体装配配置,实现外形最小化,装配简易化；将防护等级提高到IP68；提高防偏摆能力,装配精确。(The invention discloses a single-core through-hole connector, which comprises a shielding sleeve and an outer shell, wherein the outer shell is a hollow shell and is fixed on an installation panel through an installation support; the front end of the outer shell is connected with a shielding sleeve crimping device, the rear end of the outer shell is connected with a corrugated pipe fixing device, the tail end of the corrugated pipe fixing device is connected with a tail cover, the corrugated pipe fixing device comprises a corrugated pipe clamping ring, the corrugated pipe clamping ring is clamped to the corrugated pipe and then integrally installed in the outer shell, and the outer shell is connected with the tail cover. The single-core through-hole connector has the basic effects of improving the production efficiency of the wiring harness, improving the retention force of the corrugated pipe and ensuring that the whole vehicle is not separated during assembly; in addition, the following functions are achieved: the whole vehicle assembly efficiency is improved; the mounting bracket is assembled with the outer shell, so that the appearance is minimized, and the assembly is simplified; raising the protection level to IP 68; the anti-deflection capacity is improved, and the assembly is accurate.)

1. A single-core through-hole connector comprises a shielding sleeve and an outer shell (4), wherein the outer shell (4) is a hollow shell, and the outer shell (4) fixes the single-core through-hole connector on a mounting panel through a mounting bracket (3); the front end of the outer shell (4) is connected with a crimping device of the shielding sleeve, the rear end is connected with a fixing device of the corrugated pipe, and the tail end of the fixing device of the corrugated pipe is connected with a tail cover (2), and the corrugated pipe crimping device is characterized in that: the corrugated pipe fixing device comprises a corrugated pipe clamping ring (1), the corrugated pipe clamping ring (1) is clamped to a corrugated pipe and then integrally installed in the outer shell (4), and the outer shell (4) is connected through the tail cover (2).

2. The single core via connector of claim 1, wherein: bellows snap ring (1) is articulated by two semicircles and forms together, forms a complete ring after folding, sets up at least one bulge loop (11) along circumference on bellows snap ring (1) inner wall, and wherein two bulge loops are located the both ends of bellows snap ring respectively.

3. The single core via connector of claim 2, wherein: the rear end of the outer shell (4) is provided with a clamping block (42) and a guide block (43), the tail cover is provided with a buckle (21) and a guide groove (22), the clamping block is connected with the buckle in a matched mode, and the guide block is connected with the guide groove in a matched mode.

4. The single core via connector of claim 1, wherein: a threading hole (48) is formed in the outer shell (4), and a clamping groove (41) is formed in the outer surface of the outer shell (4) along the circumferential direction; the mounting bracket is bent by 90 degrees, the bent part comprises a screw hole (31), the mounting bracket part connected with the outer shell is provided with a matching hole (32), the arc of the matching hole (32) is provided with a small smooth tangent plane symmetrical along the radial mirror surface, and the radial part of the matching hole (32) is also provided with an opening.

5. The single core via connector of claim 4, wherein: smooth tangent plane (46) along radial mirror symmetry are gone up to shell body draw-in groove (41), set up location arch (47) on the circumference between two tangent planes, the chord length of location arch (47) slightly is less than the distance between two tangent planes, and the opening of installing support is packed into through smooth tangent plane (46) of shell body, and the whole assembly that sinks to the shell body.

6. The single core via connector of claim 1, wherein: the shielding sleeve crimping device comprises a front cover plate (7), a shielding elastic sheet (6) and a crimping sleeve (5), the crimping sleeve (5) is in contact with the cable shielding layer during use, and the front end face of the crimping sleeve (5) is provided with a flanging which is blocked at the shielding elastic sheet (6).

7. The single core via connector of claim 6, wherein: the shielding elastic sheet (6) is an annular elastic sheet, at least three elastic claws (61) are arranged below the annular elastic sheet, and the elastic claws (61) are in elastic contact with a crimping sleeve (5) arranged in the outer shell; set up between adjacent bullet claw (61) and play arm (62), play arm (62) one end and be connected with annular shell fragment, play arm (62) other end and equipment end trompil panel elasticity pore wall contact, the shielding layer and the contact of metal material crimping cover (5) of cable finally realize the shielding and switch on.

8. The single core via connector of claim 7, wherein: the elastic arm (61) is backwards folded by an angle smaller than 90 degrees, and a convex part (63) which is in contact with the inner hole wall of the opening at the equipment end is also arranged on the elastic arm (61); the elastic claw (62) is an arc-shaped elastic claw which is formed by cutting the periphery of the shielding elastic sheet.

9. The single core via connector of claim 4, wherein: a sealing rubber ring (8) used for ensuring radial sealing between the shell and the inner hole wall of the opening of the equipment end is arranged at the front end in a threading hole (48) of the shell body (4), and a wire sealing body (9) used for tightly wrapping the cable and radially sealing the cable is further arranged at the rear end in the threading hole.

10. The single core via connector of claim 9, wherein: the wire sealing body (9) is of an annular structure, the inner peripheral surface of the wire sealing body is provided with wave-shaped convex rings which are axially arranged at intervals, and when a cable passes through an inner hole of the wire sealing body, the wave-shaped convex rings and the cable are extruded and deformed.

Technical Field

the invention relates to the technical field of high-voltage connectors of electric automobiles, in particular to a single-core through hole connector.

Background

With the development of new energy automobile technology, the requirements on the reliability, the protection level, the whole automobile assembly efficiency and the wiring harness production efficiency of the high-voltage connector are higher and higher, and the requirements on the appearance attractiveness are also higher and higher.

The first generation technical scheme is plug connector, because its structural constraint, protection level is IP67, and whole car assembly efficiency is low (need assemble to the equipment end in advance, the on-the-spot tail nut of twisting of loading, and the connector interval is little, inconvenient operation), and pencil production efficiency is low (bellows department needs winding sticky tape or pyrocondensation pipe). The new energy passenger car is frequently used and has a severe environment, so that the requirement on the protection level of the high-voltage connector is very high, and the requirement on the protection level is IP 68.

The second generation solution is a connector solution, but has the following problems:

a. The corrugated pipe and the connector have low holding force and are easy to separate during assembly;

b. The mounting bracket and the outer shell are of an integrated structure, the requirement on the precision of a mounting panel is high, the tolerance of the panel error is low, the problem of hard interference exists during mounting, and the assembly is difficult;

c. The anti-deflection capability is weak, inclined insertion is easy to cause during assembly, and the assembly is difficult.

Disclosure of Invention

The invention aims to provide a single-core through-hole connector, which basically solves the technical problems of how to improve the production efficiency of a wiring harness, improve the retention force of a corrugated pipe and ensure that the whole vehicle is not separated during assembly; in addition, the following technical problems can be solved: the whole vehicle assembly efficiency is improved; the mounting bracket is assembled with the outer shell, so that the appearance is minimized, and the assembly is simplified; raising the protection level to IP 68; the anti-deflection capacity is improved, and the assembly is accurate.

In order to achieve the purpose, the invention adopts the following technical scheme: a single-core through-hole connector comprises a shielding sleeve and an outer shell 4, wherein the outer shell 4 is a hollow shell, and the outer shell 4 is used for fixing the single-core through-hole connector on a mounting panel through a mounting bracket 3; the front end of the shell body 4 is connected with a crimping device of the shielding sleeve, the rear end is connected with a fixing device of the corrugated pipe, and the tail end of the fixing device of the corrugated pipe is connected with a tail cover 2, which is characterized in that: the corrugated pipe fixing device comprises a corrugated pipe clamping ring 1, the corrugated pipe clamping ring 1 is clamped to a corrugated pipe and then integrally installed in an outer shell 4, and the outer shell 4 is connected through a tail cover 2.

Bellows snap ring 1 is articulated by two semicircles and forms together, forms a complete ring after folding, sets up at least one bulge loop 11 along circumference on bellows snap ring 1 inner wall, and wherein two bulge loops are located the both ends of bellows snap ring respectively.

The shell body 4 rear end is equipped with joint piece 42 and guide block 43, is equipped with buckle 21 and guide way 22 on the tail-hood, and wherein the joint piece is connected with the buckle cooperation, and the guide block is connected with the guide way cooperation.

A threading hole 48 is formed in the outer shell 4, and a clamping groove 41 is formed in the outer surface of the outer shell 4 along the circumferential direction; the mounting bracket is bent by 90 degrees, the bent part comprises a screw hole 31, the mounting bracket part connected with the outer shell is provided with a matching hole 32, the arc of the matching hole 32 is provided with a small smooth tangent plane symmetrical along the radial mirror surface, and the radial part of the matching hole 32 is also provided with an opening.

smooth tangent planes 46 which are symmetrical along the radial direction mirror surface are arranged on the outer shell clamping groove 41, a positioning bulge 47 is arranged on the circumference between the two tangent planes, the chord length of the positioning bulge 47 is slightly smaller than the distance between the two tangent planes, the opening of the mounting bracket is filled through the smooth tangent plane 46 of the outer shell, and the whole body is sunk and assembled to the outer shell.

The shielding sleeve crimping device comprises a front cover plate 7, a shielding elastic sheet 6 and a crimping sleeve 5, the crimping sleeve 5 is in contact with the cable shielding layer during use, and a flanging at the shielding elastic sheet 6 is blocked on the front end face of the crimping sleeve 5.

The shielding elastic sheet 6 is an annular elastic sheet, at least three elastic claws 61 are arranged below the annular elastic sheet, and the elastic claws 61 are in elastic contact with the crimping sleeve 5 arranged in the outer shell; set up between the adjacent bullet claw 61 and play arm 62, play arm 62 one end and be connected with annular shell fragment, play arm 62 other end and equipment end trompil panel elasticity pore wall contact, the shielding layer and the contact of metal material crimping cover 5 of cable finally realize the shielding and switch on.

the elastic arm 61 is backwards folded by an angle smaller than 90 degrees, and the elastic arm 61 is also provided with a convex part 63 which is in contact with the inner hole wall of the opening of the equipment end; the elastic claw 62 is an arc-shaped elastic claw formed by cutting the periphery of the shielding elastic sheet.

A sealing rubber ring 8 used for ensuring radial sealing between the shell and the inner hole wall of the opening of the equipment end is arranged at the front end position in a threading hole 48 of the shell body 4, and a wire sealing body 9 used for tightly wrapping a cable and radially sealing the cable is further arranged at the rear end position in the threading hole.

The sealing line body 9 is of an annular structure, the inner peripheral surface of the sealing line body is provided with wave-shaped convex rings which are axially arranged at intervals, and when a cable passes through an inner hole of the sealing line body, the wave-shaped convex rings and the cable are extruded and deformed.

When the single-core through-hole connector is used, the single-core through-hole connector is folded by the corrugated pipe clamping ring and clamped on the corrugated pipe, and then the single-core through-hole connector is integrally installed at the rear end of the tail cover, so that the product is assembled and butted with the corrugated pipe, the operation of winding an adhesive tape or a heat-shrinkable tube is omitted, the production efficiency of a wire harness is greatly improved, and the assembly retention force is far greater than the retention force of winding the adhesive tape or the heat-shrinkable tube;

Furthermore, the crimping sleeve is arranged in a threading hole of the outer shell, a flanging which is blocked at the shielding elastic sheet is arranged at the front end of the crimping sleeve, and a blocking platform which blocks the flanging is arranged in the threading hole in the forward direction. The shielding elastic sheet is arranged in the front cover plate, then the front cover plate and the shielding elastic sheet are integrally inserted into the outer shell through the clamping convex block on the cylindrical surface at the front end of the outer shell and the buckle on the insertion section of the front cover plate, and the assembly is simple. The bullet claw with install the crimping cover elastic contact in the shell body threading hole, play arm and equipment end trompil panel elasticity pore wall contact, pass the shielding layer and the contact of metal material crimping cover of the cable in threading hole, finally realize that the shielding switches on.

Furthermore, after the mounting bracket is bent by 90 degrees, the screw faces an operator, so that the mounting is simple, convenient and quick. After the mounting bracket is arranged in the outer shell, the inner diameter of the round hole on the mounting bracket is matched with the inner diameter of the clamping groove of the outer shell in size, so that the mounting bracket cannot be radially separated; the positioning bulge on the clamping groove of the outer shell is matched with the opening of the mounting bracket to prevent the mounting bracket from rotating around the axial direction; in addition, after the mounting bracket is assembled, the tail cover is arranged in the outer shell to prevent the mounting bracket from sliding along the axial direction.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a view showing a structure of a bellows snap ring according to the present invention.

Fig. 5 is a diagram of a method of assembling the mounting bracket of the present invention.

Fig. 6 is a view of the mounting bracket of the present invention in engagement with an outer housing.

Fig. 7 is a structural view of the shielding elastic sheet of the present invention.

In the figure: 1 bellows snap ring, 2 tail-hood, 3 installing supports, 4 shells, 5 crimping covers, 6 shielding shell fragments, 7 protecgulums, 8 sealing rubber ring, 9 wire-enclosed bodies, 11 bulge loops, 21 buckles, 22 guide ways, 31 screw hole, 32 mating holes, 41 draw-in grooves, 42 joint piece, 43 guide block, 44 joint piece, 45 guide block, 46 smooth tangent plane, 47 location arch, 48 through wires holes, 61 bullet arm, 62 bullet claws, 63 convex parts.

Detailed Description

The invention is further described with reference to the following figures and specific examples. It should be noted that the described embodiments are only preferred embodiments of the invention, and not all 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.

the embodiment of the single core via connector of the invention, as shown in fig. 1 to 7, comprises an outer shell 4, wherein the outer shell 4 is a hollow shell, and the outer shell 4 fixes the single core via connector on a mounting panel through a mounting bracket 3. The front end of the outer shell 4 is connected with a shielding sleeve crimping device, the rear end is connected with a corrugated pipe fixing device, and the tail part of the corrugated pipe fixing device is connected with the tail cover 2.

In this embodiment, there is one single-core via connector. Of course, in other embodiments, the single-core via connector may be connected side by side and arranged in a plurality of numbers, which may be specifically arranged according to the use environment, and is not specifically limited herein.

The corrugated pipe fixing device comprises a corrugated pipe clamping ring 1 formed by hinging two semicircles together, a complete circular ring is formed after the corrugated pipe clamping ring is folded, at least one convex ring 11 is arranged on the inner wall of the corrugated pipe clamping ring along the circumferential direction, three convex rings 11 vertical to the axis are shown in figure 4, wherein two convex rings 11 are positioned at the front end of the corrugated pipe clamping ring 1, and one convex ring is positioned at the tail end of the corrugated pipe clamping ring. After the corrugated pipe snap ring 1 is folded, the corrugated pipe is clamped on the corrugated pipe, the edge part of the corrugated pipe clamped by the convex ring 11 at the tail end of the corrugated pipe snap ring 1 plays a limiting role, the two convex rings 11 at the front end of the corrugated pipe can be tightly clamped on the wavy pipe wall of the corrugated pipe, then the corrugated pipe snap ring 1 and the corrugated pipe can be integrally installed in the outer shell, and the outer shell 4 is connected by the tail cover 2, so that the corrugated pipe cannot be separated, the corrugated pipe is assembled, and the holding force of the corrugated pipe is very.

In this embodiment, the rear end of the outer shell 4 is provided with a clamping block 42 and a guide block 43, the tail cover 2 is provided with a buckle 21 and a guide groove 22, the clamping block 42 is connected with the buckle 21 in a matching manner, and the guide block 43 is connected with the guide groove 22 in a matching manner. After the corrugated pipe clamping ring 1 and the corrugated pipe are integrally arranged in the tail cover 2, the buckle 21 and the guide groove 22 are respectively buckled with the clamping block 42 and the guide block 43, and the corrugated pipe clamping ring 1, the corrugated pipe and the tail cover 2 are integrally assembled on the outer shell 4.

Specifically, in the present embodiment, the catch block 42 and the guide block 43 are in a convex structure, and the catch 21 and the guide groove 22 are in a groove structure. Of course, in other embodiments, the snap blocks 42 and the guide blocks 43 may have a concave structure, and the snap 21 and the guide groove 22 may have a convex structure.

In the invention, the outer shell 4 is a hollow cylindrical cavity, the threading hole 48 is arranged in the outer shell 4, the clamping groove 41 is arranged on the outer surface of the outer shell 4 along the circumferential direction, the best position of the clamping groove 41 is in the axial middle position of the outer shell 4, and the front end and the rear end of the clamping groove 41 are outer cylindrical surfaces.

In the embodiment, the mounting bracket 3 is bent by 90 degrees, the bent part comprises a screw hole 31, and the screw hole 31 is mounted on the equipment through a screw. The mounting bracket 3 connected with the outer shell 4 is provided with a matching hole 32, the circular arc of the matching hole 32 is provided with a small smooth section which is symmetrical along the radial mirror surface, and the radial part of the matching hole 32 is also provided with a notch. The clamping groove 41 is provided with a smooth tangent plane 46 which is in radial mirror symmetry, a positioning bulge 47 is arranged on the circumference between the two tangent planes, and the chord length of the positioning bulge 47 is slightly smaller than the distance between the two tangent planes. The opening of the mounting bracket is filled through the smooth tangent plane 46 of the outer shell 4, and the whole body is assembled to the outer shell 4 in a sinking way. The inner diameter of the matching hole 32 is matched with the inner diameter of the clamping groove 41 in size, so that the mounting bracket 3 cannot be radially separated, and a small radial gap is formed between the mounting bracket and the clamping groove 41 due to a small smooth section on the arc of the matching hole 32; the positioning bulge 47 is matched with the notch of the mounting bracket to prevent the mounting bracket 3 from rotating around the axial direction; in addition, after the mounting bracket 3 is assembled, the tail cap 2 is arranged in the outer shell 4 to prevent the mounting bracket 3 from sliding along the axial direction.

Because the product adopts the structure that the mounting bracket 3 can be replaced, on one hand, the structure can realize the minimization of the appearance and is easier to assemble; on the other hand, the radial clearance designed on the mounting bracket can improve the containing capacity of the product, can contain the error of the mounting panel at the equipment end, greatly reduces the requirement on the processing precision of the equipment end, reduces the rejection rate and reduces the production cost.

Specifically, in the embodiment, after the mounting bracket 3 is bent by 90 degrees, the screw hole 31 faces the operator, so that the mounting is simple, convenient and quick. Of course, in other embodiments, the mounting bracket 3 is not limited to a bent structure, and may be extended to other non-bent structures to achieve different mounting manners. The included angle a between the bending part and the radial part is 0-180 degrees, when the included angle a is 0 degree, the mounting bracket is a flat plate, and when the included angle a is 180 degrees, the bending part and the radial part are in the same plane.

The shielding sleeve crimping device comprises a front cover plate 7, a shielding elastic sheet 6 and a crimping sleeve 5. When in use, the cable shielding layer is in contact with the crimping sleeve 5, and the front end face of the crimping sleeve 5 is provided with a flanging which is blocked at the shielding elastic sheet. The shielding elastic sheet 6 is arranged in the front cover plate 7, the clamping convex block 44 is arranged on the outer shell 4 through the clamping buckling of the clamping convex block 44 and the inserting section of the front cover plate, and finally the front cover plate 7 and the shielding elastic sheet 6 are integrally inserted in the outer shell 4. The shielding elastic sheet 6 is an annular elastic sheet, at least three elastic arms 61 are arranged below the annular elastic sheet, and the elastic arms 61 are in elastic contact with the crimping sleeve 5 arranged in the threading hole of the outer shell 4; set up between the adjacent bullet arm 61 and play claw 62, play arm 61 one end and be connected with annular shell fragment, play arm 61 other end and equipment end trompil panel elasticity pore wall contact, pass the shielding layer and the contact of metal material crimping cover 5 of the cable of through wires hole 48, finally realize the shielding and switch on. It should be noted that the backward folding angle of the elastic arm is less than 90 degrees, and the elastic arm 61 is also provided with a convex part 63 contacting with the inner wall of the opening of the equipment end, so as to prevent the edge part of the elastic arm 61 from scratching the inner wall of the opening of the equipment end; the elastic claw 62 is an arc-shaped elastic claw formed by cutting the periphery of the shielding elastic sheet. The shielding shell fragment 6 is split type with the design of crimping cover 5, both can guarantee the shielding retention after the crimping with 5 design wall thicknesses of crimping cover, can guarantee the high elasticity with the wall thickness that shielding shell fragment 6 designed is thinner again, guarantee that the contact is reliable, can also realize that assembly back crimping cover 5 does not influence the contact reliability along with cable axial rotation. In addition, the shielding sleeve crimping device further comprises a front cover plate 7, notches are uniformly formed in the front cover plate 7, the shielding elastic sheet 6 can be installed in the front cover plate 7 and then integrally installed in the outer shell 4, and the elastic arms 61 are exposed out of the front cover plate through the notches of the front cover plate.

A sealing rubber ring 8 is arranged at the front end in the threading hole 48 of the outer shell, and the sealing rubber ring 8 ensures the radial sealing between the outer shell 4 and the inner hole wall of the opening hole at the equipment end. The wire sealing body 9 is further installed at the rear end position in the threading hole 48 of the outer shell, the wire sealing body 9 is used for tightly wrapping the cable to seal the cable in the radial direction, and the wire sealing body 9 is blocked in the threading hole by the corrugated pipe clamping ring 1 and the tail cover 2. The sealing body 9 is of an annular structure, the inner peripheral surface of the sealing body is provided with wave-shaped convex rings which are axially arranged at intervals, and when a cable passes through an inner hole of the sealing body, the wave-shaped convex rings and the cable are extruded and deformed, so that sealing is realized, and the protection grade is improved to IP 68.

In addition, because the radial clearance between the front cover plate 7 and the inner wall of the equipment end opening hole is very small, the connector cannot be obliquely inserted when being assembled to the equipment end opening hole, the deflection prevention capability is improved, and the assembly is accurate.

the single-core through-hole connector has the basic effects of improving the production efficiency of the wiring harness, improving the retention force of the corrugated pipe and ensuring that the whole vehicle is not separated during assembly; in addition, the following functions are achieved: the whole vehicle assembly efficiency is improved; the mounting bracket is assembled with the outer shell, so that the appearance is minimized, and the assembly is simplified; raising the protection level to IP 68; the anti-deflection capacity is improved, and the assembly is accurate.