Connector for integrated power-driven system

Abstract

A connector for an integrated power driving system comprises an insulating part, a plurality of conductor column mounting holes are formed in the insulating part, a conductor column is fixed in each conductor column mounting hole, the conductor columns are in clearance fit with the conductor column mounting holes, the two ends of each conductor column extend to the outside from the interior of the insulating part, and each conductor column comprises a cylinder and a square cylinder. One end of the insulating part is fixed to be a cylinder, the cylinder is provided with an internal thread cavity, the cylinder fixes a square column, the square column is integrally wrapped in a space column where the outer surface of the cylinder is located, the cross section area of the square column is smaller than that of the cylinder, and the end of the square column extends to the outside of the insulating part and is provided with a crimping hole. And the outer wall of the nut is fixed in the crimping hole. Compared with the prior art, the technical effects of the utility model are that a part of the conductor is designed to be square column-shaped, the cross section area is small, the material is saved, and the processing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of wire harness connectors, and in particular relates to an integrated power drive system connector. Background Art

[0002] With the development of new energy vehicle technology, devices such as motors, motor controllers, DCDC (converters), OBC (on-board chargers), and PDU (power distributors) tend to be integrated, which is specifically reflected in the three-in-one drive of motors, motor controllers, and reducers, and the three-in-one drive of DCDC, OBC, and PDU. In the existing three-in-one drive of motors, motor controllers, and reducers, the motor and motor controller are connected through the motor three-phase line, which does not have the shielding function and the separate sealing function, the sealing level is low, and it does not have the 360° shielding function.

[0003] Later, our company developed a connector for an integrated power drive system, see patent document with authorization announcement number CN212784069U, which improved the sealing level of the three-in-one drive product. After assembly, the motor and motor controller can be partitioned without interfering with each other, meeting market needs.

[0004] However, in this document, the conductor is made of alloy material. Because its connection hole needs to be connected to the connector of external electrical accessories (such as new energy vehicle motors and motor controllers), the inner diameter of the connection hole has certain requirements (cannot be too small), so the conductor is generally cylindrical and relatively thick, resulting in high processing costs. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to design a connector for an integrated power drive system, use less conductor materials, and reduce processing costs.

[0006] The technical solution of the utility model is specifically as follows:

[0007] A connector for an integrated power drive system includes an insulating part, which is provided with a plurality of conductor post mounting holes. A conductor post is fixed in each conductor post mounting hole. The conductor post and the conductor post mounting hole are gap-matched. Both ends of the conductor post extend from the inside of the insulating part to the outside. The connector includes a cylinder and a square cylinder. One end of the insulating part is fixed as a cylinder. The cylinder is provided with an internal thread cavity. The cylinder fixes the square cylinder. The square cylinder is wrapped as a whole in the space column where the outer surface of the cylinder is located. In this way, the cross-sectional area of ​​the square cylinder is smaller than the cross-sectional area of ​​the cylinder. The end of the square cylinder extends to the outside of the insulating part and is provided with a crimping hole. The outer wall of the nut is fixed in the crimping hole.

[0008] An annular groove is arranged on the outer surface of the cylinder, a sealing ring is arranged in the annular groove, and two annular convex ribs are arranged on the outer wall of the sealing ring.

[0009] A cover plate groove is provided on the outer surface of the insulating part, and the direction of the cover plate groove is perpendicular to the axial direction of the conductor column. A cover plate is fixed in the cover plate groove, and a number of bosses equal to the number of the conductor columns are fixed on the cover plate. The insulating part is provided with a boss mounting through hole and a boss mounting blind hole in the corresponding area of ​​the boss, and the conductor column is provided with a conductor column through hole in the corresponding area of ​​the boss. The boss passes through the mounting through hole, the conductor column through hole, and the boss mounting blind hole in sequence.

[0010] Two hooks are fixed on the cover plate, and a hook installation blind chamber is arranged on the insulating member in the corresponding area of ​​the hook, and the hook is fixed in the hook installation blind chamber.

[0011] The outer surface of the hook is fixed with a barb, and a step is arranged in the blind chamber for installing the hook, and the barb is hooked on the step.

[0012] The crimping hole and the nut are fixed by welding or riveting.

[0013] Compared with the prior art, the technical effect of the utility model is that the utility model designs part of the conductor into a square column shape with a smaller cross-sectional area, thereby saving materials and reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the utility model with the outer shell removed.

[0016] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0017] Figure 4 It is a cross-sectional schematic diagram of the utility model with the outer shell removed.

[0018] Figure 5 It is a schematic diagram of the cooperation between the pressure plate and the conductor column.

[0019] Figure 6 yes Figure 5 Enlarged diagram in the upper left corner.

[0020] Figure 7 It is a schematic diagram of the coordination between the hook and the blind chamber for installing the hook.

[0021] Figure 8 yes Figure 7 Enlarged diagram of the middle hook. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1-Figure 2A connector for an integrated power drive system includes an insulating part (also called a plastic part) 30, and a plurality of conductor post mounting holes are provided on the insulating part 30. A conductor post 40 is fixed in each conductor post mounting hole, and the conductor post 40 is gap-matched with the conductor post mounting hole. Each conductor post 40 is responsible for connecting a wire, and the number of conductor posts 40 needs to match the number of wires connected electrically. Generally, three-phase alternating current is required.

[0024] like Figure 3 , Figure 5 Both ends of the conductor column 40 extend from the inside of the insulating part 30 to the outside, including a cylinder 41 and a square cylinder 43, one end of which is fixed to the cylinder 41, and the cylinder 41 is provided with an internal thread cavity 411, and the internal thread cavity 411 is used to connect with the motor controller, and the cylinder 41 fixes the square cylinder 43, and the square cylinder 43 is wrapped as a whole in the space column where the outer surface of the cylinder 41 is located, so that the cross-sectional area of ​​the square cylinder 43 is smaller than the cross-sectional area of ​​the cylinder 41. Under the same length, the square cylinder 43 can save materials (in practice, under the condition of ensuring the strength of the internal thread cavity 411, the cylinder 41 should be as short as possible to achieve the purpose of saving materials), the end of the square cylinder 43 extends to the outside of the insulating part 30, and is provided with a crimping hole 431, and the outer wall of the nut 432 is fixed in the crimping hole 431, and the internal thread of the nut 432 is used to connect with the motor.

[0025] like Figure 3-Figure 4 In order to form a seal between the insulating member 30 and the conductor column 40 and increase the waterproof capability, an annular groove 42 is provided on the outer surface of the cylinder 41, a sealing ring 421 is provided in the annular groove 42, and two annular convex ribs 422 are provided on the outer wall of the sealing ring 421.

[0026] like Figure 3-Figure 5 In order to prevent the conductor post 40 from axially moving in the conductor post installation hole, the outer surface of the insulating member 30 is provided with a cover plate groove 36, the direction of the cover plate groove 36 is perpendicular to the axial direction of the conductor post 40, the cover plate 50 is fixed in the cover plate groove 36, and the cover plate 50 is fixed with the same number of protrusions 51 as the conductor post 40, the insulating member 30 is provided with a protrusion installation through hole 33 and a protrusion installation blind hole 32 in the corresponding area of ​​the protrusion 51, and the conductor post 40 is provided with a conductor post through hole 44 in the corresponding area of ​​the protrusion 51, and the protrusion 51 passes through the installation through hole 33, the conductor post through hole 44, and the protrusion installation blind hole 32 in sequence. The protrusion 51 acts like a pin and can prevent the conductor post 40 from axially moving.

[0027] like Figure 5-Figure 8 In order to firmly fix the insulating member 30 and the cover plate 50, two hooks 52 are fixed on the cover plate 50, and the insulating member 30 is provided with a hook installation blind chamber 37 in the corresponding area of ​​the hook 52, and the hook 52 is fixed in the hook installation blind chamber.

[0028] like Figure 6-Figure 8 In order to prevent the hook 52 from falling off, a barb 521 is fixed to the outer surface of the hook 52, and a step 371 is provided in the hook installation blind chamber 37, and the barb 521 is hooked on the step 371 to prevent the hook 52 from sliding out.

[0029] like Figure 1-Figure 2 The crimping hole 431 and the nut 432 are fixed by welding or riveting.

[0030] like Figure 1-Figure 2 For safety reasons, the outer side of the insulating member 30 is fixed to the housing 10 , and the outer side of the cylinder 41 is fixed to the protective cap 20 .

[0031] Its working principle is:

[0032] Installation: When assembling the insulating part 30 and the conductor post 40, assemble the conductor post 40 and the sealing ring 421, insert the square column 43 from the large hole end of the conductor post installation hole, and gradually assemble the conductor post 40 and the sealing ring 421 into place. At this time, fix the nut 432 at the crimping hole 431, otherwise, the nut 432 will become an obstacle to "inserting the square column 43 from the large hole end of the conductor post installation hole".

[0033] When in use, the internal thread of the nut 432 is used to connect with the motor, and the internal thread cavity 411 is used to connect with the motor controller, so that the two electrical components are connected. The nut 432 is set separately because the square column 43 is too thin and the thickness does not meet the requirement.

[0034] Features of this application:

[0035] S1. Under the condition of the same length, the square cylinder 43 can save materials. In practice, under the condition of ensuring the strength of the internal thread cavity 411, the cylinder 41 should be as short as possible to achieve the purpose of saving materials.

[0036] S2. By hooking the barb 521 on the step 371, the hook 52 can be prevented from sliding out, which is relatively firm.

[0037] For other contents, please refer to the prior art.

[0038] The above-described embodiments are only preferred embodiments of the present invention. It should be noted that those skilled in the art may make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as within the protection scope of the present invention.

Claims

1. A connector for an integrated power drive system, comprising an insulating member (30), wherein the insulating member (30) is provided with a plurality of conductor post mounting holes, wherein a conductor post (40) is fixed in each conductor post mounting hole, and the conductor post (40) is clearance-matched with the conductor post mounting hole, wherein: Both ends of the conductor column (40) extend from the inside of the insulating member (30) to the outside, and include a cylinder (41) and a square cylinder (43). One end of the conductor column (40) is fixed to the cylinder (41). The cylinder (41) is provided with an internal thread cavity (411). The cylinder (41) fixes the square cylinder (43). The square cylinder (43) is entirely wrapped in a space column where the outer surface of the cylinder (41) is located. Thus, the cross-sectional area of ​​the square cylinder (43) is smaller than the cross-sectional area of ​​the cylinder (41). The end of the square cylinder (43) extends to the outside of the insulating member (30) and is provided with a crimping hole (431). The outer wall of the nut (432) is fixed in the crimping hole (431).

2. The integrated power drive system connector according to claim 1, characterized in that: An annular groove (42) is provided on the outer surface of the cylinder (41), a sealing ring (421) is provided in the annular groove (42), and two annular convex ribs (422) are provided on the outer wall of the sealing ring (421).

3. The integrated power drive system connector according to claim 2, characterized in that: The outer surface of the insulating member (30) is provided with a cover plate groove (36), the direction of the cover plate groove (36) is perpendicular to the axial direction of the conductor column (40), the cover plate (50) is fixed in the cover plate groove (36), and the cover plate (50) is fixed with a number of protrusions (51) equal to the number of the conductor columns (40), the insulating member (30) is provided with a protrusion mounting through hole (33) and a protrusion mounting blind hole (32) in a corresponding area of ​​the protrusion (51), the conductor column (40) is provided with a conductor column through hole (44) in a corresponding area of ​​the protrusion (51), and the protrusion (51) passes through the mounting through hole (33), the conductor column through hole (44), and the protrusion mounting blind hole (32) in sequence.

4. The integrated power drive system connector according to claim 3, characterized in that: Two hooks (52) are fixed on the cover plate (50), and the insulating member (30) is provided with a hook installation blind chamber (37) in a region corresponding to the hooks (52), and the hooks (52) are fixed in the hook installation blind chamber.

5. The integrated power drive system connector according to claim 4, characterized in that: A barb (521) is fixed on the outer surface of the hook (52), and a step (371) is provided in the hook installation blind chamber (37), and the barb (521) is hooked on the step (371).

6. The connector for an integrated power drive system according to claim 5, characterized in that: The crimping hole (431) and the nut (432) are fixed by welding or riveting.

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