CN214673076U - A kind of interface unit - Google Patents

Abstract

The utility model discloses a connector, including the casing, with casing sealing connection's support, the binding post that links to each other with the support locates the pressure cover in the casing, and a terminal surface offsets with the support, another terminal surface and the sealing member that presses the cover to offset, press to be equipped with the elastic component on the cover, this elastic component offsets with shells inner wall, will press the cover to support to pressing to sealing member place direction, lie in and press the pencil in the cover to link to each other with binding post after can passing the support, the other end of pencil stretches out from shells end face's trompil. The utility model can adapt and clamp different wire harnesses only by replacing the pressing sleeves with different sizes, has strong universality and reduces the development cost; the sealing effect is good, and the waterproof level of IP67 between the wiring harness and the shell can be achieved through the sealing element; the whole structure has high strength, simple assembly and stable connection; the shielding effect is good.

Description

A kind of interface unit

Technical Field

The utility model belongs to the technical field of the machine controller of electric motor car, especially, relate to a connector.

Background

The electric vehicle controller is a core control device for controlling the starting, running, advancing and retreating, speed and stopping of the electric vehicle and other electronic elements of the electric vehicle, and is connected with the motor through a cable. The connector of the existing electric vehicle controller is connected in a mode that cables with different outer diameters are not required to be matched with shells of different models, so that the adaptability is not high, and the development cost is relatively high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a strong commonality shields effectual connector.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a connector, includes the casing, with casing sealing connection's support, the binding post that links to each other with the support, locates the pressure cover in the casing, and a terminal surface offsets with the support, another terminal surface and the sealing member that presses the cover to offset, press to be equipped with the elastic component on the cover, this elastic component offsets with shells inner wall, will press the cover to support to pressing to the sealing member place direction, and the pencil that is located in pressing the cover can pass the support after link to each other with binding post, and the other end of pencil stretches out from the trompil of casing terminal surface.

When the connector of the utility model is required to connect different wire harnesses, only the pressing sleeves with different sizes need to be replaced, different shells are not required to be designed according to the different wire harnesses, the connector has strong universality and high adaptability, and the development cost is reduced; the elastic piece presses the pressing sleeve, the sealing piece and the support against each other, so that the integral sealing effect is good, and the waterproof performance is good.

Furthermore, the pressing sleeve comprises a hollow cylindrical body, and a first flange, a second flange and a third flange which are positioned on the outer ring of the body, wherein the first flange, the second flange and the third flange are arranged at intervals. Above-mentioned structural design offers convenience for the not pressure cover adaptation casing of equidimension, and the setting of first flange provides the position for the butt of elastic component.

Further, the radial width of the second flange is smaller than the radial width of the first flange. The second flange facilitates crimping the press sleeve in the direction of the wire harness.

Further, the third flange extends radially inward of the body. The third flange increases the contact area of the press sleeve and the seal.

Furthermore, the inner wall of the shell is provided with a first step surface and a second step surface, the end of the pressing sleeve is abutted against the first step surface, and the elastic piece is abutted against the second step surface. The elastic part is different from the position where the pressing sleeve is abutted to the shell, convenience is provided for the installation of the pressing sleeves with different sizes, and the integral assembly structure is more stable.

Furthermore, the bracket is provided with a buckle, and the shell is provided with a jack for the buckle to extend into and form a limit position. The assembly structure of the bracket and the shell is simple and stable.

Further, the buckle sets up in pairs, and a pair of buckle includes parallel two just right buckles, and the hook portion of two buckles all sets up in the one side of keeping away from adjacent buckle.

Furthermore, a frame is formed on the periphery of the support, a folded edge is formed at one end of the shell, a groove is formed at the opening of the folded edge close to the shell, and the sealing ring and the frame are arranged in the groove.

Furthermore, a reinforcing rib is connected between the outer wall of the support below the frame and the lower surface of the frame. The strength of the bracket is high.

Further, the elastic member is a wave spring. The wave spring is simple to assemble, and the abutting structure is stable.

The utility model has the advantages that: different wire harnesses can be adaptively clamped only by replacing the pressing sleeves with different sizes, so that the universality is strong, and the development cost is reduced; the sealing effect is good, and the waterproof level of IP67 between the wiring harness and the shell can be achieved through the sealing element; the whole structure has high strength, simple assembly and stable connection; the shielding effect is good.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view of the exploded structure of the present invention.

Fig. 3 is a perspective view of the pressing sleeve of the present invention.

Fig. 4 is a perspective view of the bracket of the present invention.

Fig. 5 is a front view of the present invention.

Fig. 6 is a bottom view of the present invention.

Fig. 7 is a sectional view a-a in fig. 6.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in fig. 1-7, a connector comprises a housing 1, a bracket 2 hermetically connected with the housing 1, a connecting terminal 3 assembled with the bracket 2, a pressing sleeve 4 disposed in the housing 1, and a sealing member 5 having one end surface abutting against the bracket 2 and the other end surface abutting against the pressing sleeve 4, wherein the pressing sleeve 4 is provided with an elastic member 6, and the elastic member 6 abuts against the inner wall of the housing 1 and the pressing sleeve 4, respectively, so as to press the pressing sleeve 4 toward the direction of the sealing member 5. A wire harness (not shown in the figure) is connected in the pressing sleeve 4, one end of the wire harness penetrates through the bracket 2 and then is connected with the wiring terminal 3, and the other end of the wire harness extends out of the opening 11 in the end face of the shell 1.

As shown in fig. 3, the pressing sleeve 4 is made of aluminum, and includes a hollow cylindrical body 44, and a first flange 41, a second flange 42, and a third flange 43 located at an outer ring of the body 44, wherein the first flange 41, the second flange 42, and the third flange 43 are spaced apart, i.e., a distance exists between adjacent flanges. The first flange 41 is spaced apart from the open end of the body 44, and the third flange 43 is flush with the other open end of the body 44.

The radial width of the second flange 42 is smaller than that of the first flange 41, the radial width of the third flange 43 is equal to that of the first flange 41, and the third flange 43 extends radially inward of the body 44 to increase the contact area of the third flange 43 and the seal 5.

In the present embodiment, the elastic member 6 is a wave spring. A first step surface 12 and a second step surface 13 having a difference in height are formed at a position of the inner wall of the housing 1 near the end surface opening hole 11, in other words, as shown in fig. 7, the inner diameter at the plane of the first step surface 12 is smaller than the inner diameter at the plane of the second step surface 13. The end of the body 44 of the pressing sleeve 4 is abutted against the first step surface 12; the elastic member 6 is sleeved on the body 44, abuts against the second step surface 13, and abuts against the first flange 41.

As shown in fig. 7, the bracket 2 is made of an insulating material such as plastic, and has a hollow cylindrical main body, a frame 22 perpendicular to the side wall is formed on the outer periphery of the middle portion of the main body, a folded edge 15 is formed at one end of the housing 1, a groove 151 is formed at the position, close to the opening of the housing 1, of the folded edge 15, the frame 22 of the bracket 2 and a sealing ring 7 are placed in the groove 151, so that the bracket 2 and the housing 1 are in sealing fit, and a portion of the sealing ring 7 protrudes out of the groove 151 for sealing fit with an external box.

The stent 1 may be a hollow cylinder, or a plurality of hollow cylinders connected as a whole, in this embodiment, the stent 1 is composed of three hollow cylinders.

In order to increase the strength of the support frame 2, a reinforcing rib 23 is connected between the outer wall of the support frame 2 below the rim 22 and the lower surface of the rim 22, and the reinforcing rib 23 extends axially along the outer wall of the support frame 2.

In order to realize the assembly connection between the bracket 2 and the shell 1, a buckle 21 is arranged on the bracket 2, in particular, the buckle 21 is vertically extended and formed on the lower surface of the frame 22, and the lower end of the buckle 21 is provided with an inclined hook part 211; form on casing 1 and supply buckle 21 to stretch into and form spacing jack, hook portion 211 of buckle 21 can take place deformation and pass the jack, later reset the terminal surface and offset with the lateral wall next to the jack.

In order to increase the stability of the connection between the bracket 2 and the housing 1, the buckles 21 are arranged in pairs, the pair of buckles 21 includes two parallel buckles 21, the hook parts 211 of the two buckles 21 are all arranged on one side far away from the adjacent buckle 21, that is, the hook parts 211 of the two buckles 21 are not arranged oppositely. And two jacks are arranged on the shell 1 in a matching way.

The inner wall and the outer wall of the sealing element 5 are provided with a plurality of sealing bulges 51 which are arranged in parallel, and the sealing bulges 51 can be greatly deformed, so that the sealing element can form good sealing with the inner wall of the shell 1 and the wiring harness.

During the assembly, pass pressure cover 4 with the pencil, again with the inside crimping of second flange 42 for pressure cover 4 and pencil are connected firmly, will press cover 4 and pencil assembly back in casing 1, establish sealing member 5 cover in the pencil periphery, be connected pencil and binding post 3 again, and then insert the jack with buckle 21 butt joint, accomplish the erection joint of support 2 and casing 1.

Because the body 44 of the pressing sleeve 4 is abutted against the first step surface 12, the elastic part 6 is abutted against the second step surface 13 and the first flange 41 respectively, so that the shell 1 does not need to be replaced, the wire harnesses with different outer diameters can be connected only by changing the size of the pressing sleeve 4, the universality is high, and the development cost is reduced.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.

Claims (10)

1. A connector, characterized by: including casing (1), support (2) with casing (1) sealing connection, binding post (3) continuous with support (2), locate pressure cover (4) in casing (1), and a terminal surface offsets with support (2), another terminal surface and pressure cover (4) offset sealing member (5), be equipped with elastic component (6) on pressing cover (4), this elastic component (6) offsets with casing (1) inner wall, will press cover (4) to support to pressing to sealing member (5) place direction, be located and press the pencil in cover (4) and can pass behind support (2) and link to each other with binding post (3), the other end of pencil stretches out from trompil (11) of casing (1) terminal surface.

2. The connector of claim 1, wherein: the pressing sleeve (4) comprises a hollow cylindrical body (44), a first flange (41), a second flange (42) and a third flange (43), wherein the first flange (41), the second flange (42) and the third flange (43) are located on the outer ring of the body (44), and the first flange (41), the second flange (42) and the third flange (43) are arranged at intervals.

3. The connector of claim 2, wherein: the radial width of the second flange (42) is smaller than the radial width of the first flange (41).

4. The connector of claim 2, wherein: the third flange (43) extends radially inwardly of the body (44).

5. The connector of claim 1, wherein: the inner wall of the shell (1) is provided with a first step surface (12) and a second step surface (13), the end part of the pressing sleeve (4) is abutted against the first step surface (12), and the elastic part (6) is abutted against the second step surface (13).

6. The connector of claim 1, wherein: the support (2) is provided with a buckle (21), and the shell (1) is provided with a jack for the buckle (21) to extend into and form a limit position.

7. The connector of claim 6, wherein: the buckle (21) set up in pairs, and a pair of buckle (21) is including parallel two just right buckle (21), and hook portion (211) of two buckle (21) all set up in the one side of keeping away from adjacent buckle (21).

8. The connector of claim 1, wherein: the outer periphery of the support (2) forms a frame (22), one end of the shell (1) forms a folded edge (15), a groove (151) is formed at the position, close to the opening of the shell (1), of the folded edge (15), and the sealing ring (7) and the frame (22) are arranged in the groove (151).

9. The connector of claim 8, wherein: and a reinforcing rib (23) is connected between the outer wall of the bracket (2) below the frame (22) and the lower surface of the frame (22).

10. The connector of claim 1, wherein: the elastic piece (6) is a wave spring.

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