High-voltage connector wire harness shielding adapter shell anti-rotation structure

Abstract

The utility model discloses a high pressure connector wire harness shielding adapter shell anti -rotation structure, and the braided shielding layer of the wire harness to be connected can be sleeved on the outside of the crimping sleeve of the one end of shielding adapter shell, the conductor of the wire harness to be connected can pass through the inner hole of crimping sleeve, and the compression ring can compress the braided shielding layer on the outside of crimping sleeve, at least one radial anti -rotation slot or radial anti -rotation convex rib is equipped on the inside wall of the circular insertion hole of the one end of insulating casing, the other end of shielding adapter shell forms the connecting sleeve of cross section circular ring structure, the connecting sleeve can be inserted in the circular insertion hole of insulating casing, and the radial anti -rotation convex rib or radial anti -rotation slot on the circumferential outside wall of connecting sleeve is inserted with the radial anti -rotation slot or radial anti -rotation convex rib on the inside wall of circular insertion hole, realizes the shielding adapter shell and insulating casing stop, and the utility model discloses can satisfy the anti -rotation requirement of high pressure wire harness, reduces the production cost of shielding adapter shell, and improves shielding adapter shell quality.

Description

Technical Field

[0001] This utility model relates to a high-voltage connector, and more particularly to a high-voltage connector wire harness shielding adapter shell anti-rotation structure. Background Technology

[0002] High-voltage connectors are used to connect high-voltage lines. They are mainly connected by crimping the terminals inside the connector to the conductors of the high-voltage wire harness to transmit current and signals. After the terminals are crimped to the conductors of the high-voltage wire harness, the crimped area needs to be covered by a shielded adapter shell to shield against external interference signals. Currently, the most common braided wire shielded adapter shells are square shell structures. After the wire harness is crimped, the square shell prevents the wire harness from rotating after assembly, solving the risk of wear and poor contact caused by rotation and shaking. However, the square shell is large in size, and the process of stretching and forming the square shell is difficult. The quality control, production cost and raw material cost are all high, resulting in low production efficiency and high production cost of high-voltage connectors. In addition, they occupy a lot of space when used, which is not conducive to use in small spaces and limits the miniaturization design of electronic products. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a high-voltage connector wire harness shielding adapter shell anti-rotation structure. This high-voltage connector wire harness shielding adapter shell anti-rotation structure has a small overall size, low production cost, and high production yield.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a high-voltage connector wire harness shielding adapter shell anti-rotation structure, including an insulating shell of the high-voltage connector, a shielding adapter shell, and a pressure ring. One end of the shielding adapter shell forms a pressure sleeve, and the braided shielding layer of the wire harness to be wired can be sleeved on the outside of the pressure sleeve. The conductor of the wire harness to be wired can pass through the inner hole of the pressure sleeve. The pressure ring can be tightly sleeved on the outside of the pressure sleeve at one end of the shielding adapter shell and press and fix the braided shielding layer covering the outside of the pressure sleeve. One end of the insulating shell is provided with a circular insertion hole, and the circular insertion hole contains... The side wall is provided with at least one radial anti-rotation slot or radial anti-rotation rib. The other end of the shielding adapter shell is formed with a connecting sleeve with a circular cross-section. The outer circumferential side wall of the connecting sleeve is provided with at least one radial anti-rotation rib or radial anti-rotation slot. The connecting sleeve at the other end of the shielding adapter shell can be inserted into the circular insertion hole of the insulating shell. The radial anti-rotation rib or radial anti-rotation slot on the outer circumferential side wall of the connecting sleeve corresponds to the radial anti-rotation slot or radial anti-rotation rib on the inner side wall of the circular insertion hole, so that the shielding adapter shell and the insulating shell are circumferentially stopped.

[0005] As a further improvement of this utility model, the outer diameter of the crimping sleeve at one end of the shielding adapter shell is smaller than the outer diameter of the connecting sleeve at the other end of the shielding adapter shell, and an annular stepped surface is formed between the crimping sleeve and the connecting sleeve. The axial end face of the crimping ring and the annular stepped surface can clamp the woven shielding layer flange of the wire harness to be connected.

[0006] As a further improvement of this utility model, the radial anti-rotation ribs on the outer circumferential wall of the shielding adapter shell are two convex ribs with a convex arc-shaped cross-section that are spaced apart and extend along the generatrix of the other end of the shielding adapter shell. The radial anti-rotation slots on the insulating shell are open grooves with a cross-sectional shape consistent with the radial anti-rotation ribs and extending along the generatrix of the insulating shell.

[0007] As a further improvement of this utility model, a pressure cover is also provided. The pressure cover is detachably and fixedly sleeved on the outside of one end of the insulating shell. The shielding adapter shell and the pressure ring are accommodated in the cavity formed by the circular insertion hole at one end of the insulating shell and the bottom surface of the pressure cover. The bottom surface of the pressure cover can tightly abut against the other end face of the pressure ring. A through hole for inserting the wiring harness is formed on the bottom surface of the pressure cover.

[0008] As a further improvement of this utility model, at least two protruding buckles are provided at intervals along the circumference on the outer side surface of one end of the insulating shell, and at least two slots are provided on the side wall of one end of the pressure cover fitted onto the insulating shell. The protruding buckles at one end of the insulating shell can be engaged and connected one-to-one with the slots on the side wall of one end of the pressure cover.

[0009] As a further improvement of this utility model, the pressure cap is provided with at least one notch structure on one side wall of the insulating shell. Each notch structure is located between adjacent slots, and each notch allows the side wall of one end of the pressure cap to expand radially outward.

[0010] As a further improvement of this utility model, the cover is a T-shaped sleeve structure with one end diameter larger than the other end diameter, and the stepped surface between the two ends of the cover forms the bottom surface of the cover, through which the wiring harness extends out through the inner hole of the other end of the cover.

[0011] As a further improvement of this utility model, the outer circumference of the other end of the pressure cap and the bottom surface of the outer side of the pressure cap are reinforced by a triangular convex rib.

[0012] As a further improvement of this utility model, the insulating housing of the high-voltage connector has a terminal receiving cavity coaxially connected with the circular insertion hole. A terminal is installed in the terminal receiving cavity, and the terminal can be crimped with the conductor of the wiring harness to achieve electrical conduction.

[0013] The beneficial technical effects of this utility model are as follows: This utility model forms a circular insertion hole inside the insulating shell of the high-voltage connector, and designs the shielding adapter shell as a circular sleeve structure. After the two are inserted, the radial anti-rotation slots on the side wall and the radial anti-rotation ribs interlock to achieve a circumferential stop connection, preventing the shielding adapter shell from rotating or shaking inside the insulating shell, which could cause wear or even poor connection between the conductor and the terminal. At the same time, the circular shielding adapter shell occupies less space, which is conducive to the miniaturization design of electronic products. Moreover, the circular shielding adapter shell has a simple process, high yield rate, and high efficiency in stretch forming, which greatly reduces the production cost of the shielding adapter shell. In addition, the circular structure has the best material space utilization, maximizes material cost control, and improves the stretch forming quality of the circular hole, reducing management costs. The rib structure is simple, easy to implement in terms of process, and can fully meet the anti-rotation requirements of high-voltage wire harnesses. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is the front view of the present invention;

[0016] Figure 3 for Figure 2 Sectional view along axis AA;

[0017] Figure 4 for Figure 3 Enlarged view of section B in the middle;

[0018] Figure 5 This is an exploded perspective view of the present invention;

[0019] Figure 6 This is an exploded view of the high-voltage wire harness and terminal crimping principle of this utility model;

[0020] Figure 7 This is a perspective view of the shielding adapter shell of this utility model;

[0021] Figure 8 This is a front view of the shielding adapter shell of this utility model;

[0022] Figure 9 This is a left view of the shielding adapter shell of this utility model. Detailed Implementation

[0023] Example: A high-voltage connector wire harness shielding adapter shell anti-rotation structure includes an insulating shell 1, a shielding adapter shell 2, and a pressure ring 3 for the high-voltage connector. One end of the shielding adapter shell 2 forms a pressure sleeve 21. The braided shielding layer 41 of the wire harness 4 can be fitted onto the outside of the pressure sleeve 21. The conductor 42 of the wire harness 4 can pass through the inner hole of the pressure sleeve 21. The pressure ring 3 can be tightly fitted onto the outside of the pressure sleeve 21 at one end of the shielding adapter shell 2 and press and fix the braided shielding layer 41 covering the outside of the pressure sleeve 21. One end of the insulating shell 1 is provided with a circular insertion hole 11. At least one radial anti-rotation structure is provided on the inner wall of the circular insertion hole 11. The shielding adapter shell 2 has a connecting sleeve 22 with a circular cross-section at the other end. The outer circumferential wall of the connecting sleeve 22 is provided with at least one radial anti-rotation rib 23 or radial anti-rotation slot 12. The connecting sleeve 22 at the other end of the shielding adapter shell 2 can be inserted into the circular insertion hole 11 of the insulating shell 1. The radial anti-rotation rib 23 or radial anti-rotation slot 12 on the outer circumferential wall of the connecting sleeve 22 is inserted into the radial anti-rotation slot 12 or radial anti-rotation rib 23 on the inner side wall of the circular insertion hole 11 in a one-to-one correspondence, so that the shielding adapter shell 2 and the insulating shell 1 are circumferentially stopped.

[0024] When using a high-voltage connector for wiring, the conductor 42 of the wire harness 4 passes through the inner hole of the shielded adapter shell 2 and is inserted into the insulating shell 1 to be crimped with the terminals inside the insulating shell 1. The braided shielding layer 41 of the wire harness 4 is fitted over the outside of the crimping sleeve 21 of the shielded adapter shell 2 and is pressed and fixed by the pressure ring 3, so that the braided shielding layer 41 of the wire harness 4 is fixedly connected to the metal shielded adapter shell 2 to form an integral structure. The connecting sleeve 22 of the shielded adapter shell 2 is inserted into the circular insertion hole 11 of the insulating shell to cover the conductor 42 of the wire harness 4. To shield external interference signals, the shielding adapter shell 2 has a circular cross-section, which can be directly formed by stretching metal material during production, resulting in high forming efficiency and high yield rate. It is inserted into the circular insertion hole 11 in the insulating shell 1 through the radial anti-rotation ribs 23 and radial anti-rotation slots 12 on the side wall to achieve circumferential stop and limit, ensuring that the conductor 42 of the wire harness 4 stops rotating after being crimped with the terminal of the high voltage connector, ensuring the stability of the crimping between the wire and the terminal, and avoiding wear caused by the rotation of the shielding adapter shell 2 inside the insulating shell.

[0025] The outer diameter of the crimp sleeve 21 at one end of the shielding adapter shell 2 is smaller than the outer diameter of the connecting sleeve 22 at the other end of the shielding adapter shell 2. An annular stepped surface is formed between the crimp sleeve 21 and the connecting sleeve 22. The axial end face of the pressure ring 3 can clamp the flange of the braided shielding layer 41 of the wire harness 4 to be connected to the annular stepped surface. When the pressure ring 3 presses and fixes the braided shielding layer 41 of the wire harness 4, it can press the braided shielding layer 41 outside the crimp sleeve 21 of the shielding adapter shell 2, and it can also press the flange of the braided shielding layer 41 to prevent the flange of the braided shielding layer 41 from being separated from the shielding adapter shell 2 under tension.

[0026] The radial anti-rotation ribs 23 on the outer circumferential wall of the shielding adapter shell 2 are two spaced-apart ribs with a convex arc-shaped cross-section extending along the generatrix of the other end of the shielding adapter shell 2. The radial anti-rotation slots 12 on the insulating shell 1 are open grooves with a cross-sectional shape consistent with the radial anti-rotation ribs 23, extending along the generatrix of the insulating shell 1. One or more eccentrically positioned ribs are simultaneously inserted into the radial anti-rotation slots 12 when the shielding shell is inserted into the circular insertion hole 11 of the insulating shell. It is best to use two or more ribs to improve anti-rotation stability.

[0027] A pressure cap 5 is also provided, which is detachably and fixedly sleeved on the outside of one end of the insulating housing 1. The shielding adapter shell 2 and the pressure ring 3 are accommodated in the cavity formed by the circular insertion hole 11 at one end of the insulating housing 1 and the bottom surface of the pressure cap 5. The bottom surface of the pressure cap 5 can tightly abut against the other end face of the pressure ring 3. A through hole is formed on the bottom surface of the pressure cap 5 for the insertion of the wiring harness 4. After the pressure cap 5 is fixedly connected to the insulating housing, it can press and protect the pressure ring 3 to prevent the pressure ring 3 from falling off.

[0028] At least two protruding buckles 13 are provided at intervals along the circumference on the outer side surface of one end of the insulating shell 1. At least two slots 51 are provided on the side wall of one end of the insulating shell. The protruding buckles 13 at one end of the insulating shell can be fastened to the slots 51 on the side wall of one end of the pressure cover 5.

[0029] The pressure cap 5, which is fitted onto the side wall of one end of the insulating shell, is also provided with at least one notch structure 52. Each notch structure 52 is located between adjacent slots 51, and each notch allows the side wall of one end of the pressure cap 5 to expand radially elastically. The notch structure 52 on the side wall of the pressure cap 5 allows the pressure cap 5 to open elastically when connected to the insulating shell 1, so that the protruding buckle 13 can smoothly enter the slot 51 for fastening. The protruding buckle 13 is preferably an inverted buckle structure.

[0030] The pressure cap 5 is a T-shaped sleeve structure with one end having a larger diameter than the other end. The stepped surface between the two ends of the pressure cap 5 forms the bottom surface of the pressure cap 5, and the wiring harness 4 to be connected extends out through the inner hole at the other end of the pressure cap 5. The other end of the pressure cap 5 can protect and guide the wiring harness 4 to be connected, preventing the rubber-free section of the wiring harness 4 from being exposed.

[0031] The outer circumference of the other end of the pressure cap 5 and the outer bottom surface of the pressure cap 5 are reinforced by a triangular rib 53. The triangular rib improves the strength of the annular bottom surface of the pressure cap 5.

[0032] The insulating housing 1 of the high-voltage connector has a terminal receiving cavity coaxially connected to the circular insertion hole 11. A terminal 6 is installed in the terminal receiving cavity, and the terminal 6 can be crimped with the conductor 42 of the wiring harness 4 to achieve electrical conduction.

Claims

1. A high-voltage connector wire harness shielding adapter shell anti-rotation structure, comprising an insulating shell (1) of a high-voltage connector, a shielding adapter shell (2) and a pressure ring (3), wherein a pressure sleeve (21) is formed at one end of the shielding adapter shell, the braided shielding layer (41) of the wire harness (4) to be wired can be fitted onto the outside of the pressure sleeve, the conductor (42) of the wire harness to be wired can pass through the inner hole of the pressure sleeve, and the pressure ring can be tightly fitted onto the outside of the pressure sleeve at one end of the shielding adapter shell and press and fix the braided shielding layer covering the outside of the pressure sleeve, characterized in that: One end of the insulating shell is provided with a circular insertion hole (11), and the inner sidewall of the circular insertion hole is provided with at least one radial anti-rotation slot (12) or radial anti-rotation rib. The other end of the shielding adapter shell is formed with a connecting sleeve (22) with a circular cross-section. The outer sidewall of the connecting sleeve is provided with at least one radial anti-rotation rib (23) or radial anti-rotation slot. The connecting sleeve at the other end of the shielding adapter shell can be inserted into the circular insertion hole of the insulating shell, and the radial anti-rotation rib or radial anti-rotation slot on the outer sidewall of the connecting sleeve corresponds to the radial anti-rotation slot or radial anti-rotation rib on the inner sidewall of the circular insertion hole, so that the shielding adapter shell and the insulating shell are connected in a circumferential direction with a stop connection.

2. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 1, characterized in that: The outer diameter of the crimp sleeve at one end of the shielding adapter shell is smaller than the outer diameter of the connecting sleeve at the other end of the shielding adapter shell. An annular stepped surface is formed between the crimp sleeve and the connecting sleeve. The axial end face of the crimp ring and the annular stepped surface can clamp the braided shielding layer flange of the wire harness to be connected.

3. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 1, characterized in that: The radial anti-rotation ribs on the outer circumference of the shielding adapter shell are two spaced-apart ribs with a convex arc-shaped cross-section extending along the generatrix of the other end of the shielding adapter shell. The radial anti-rotation slots on the insulating shell are open grooves with a cross-sectional shape consistent with the radial anti-rotation ribs and extending along the generatrix of the insulating shell.

4. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 1, characterized in that: It is also provided with a pressure cover (5), which is detachably fixedly sleeved on the outside of one end of the insulating shell. The shielding adapter shell and the pressure ring are accommodated in the cavity formed by the circular insertion hole at one end of the insulating shell and the bottom surface of the pressure cover. The bottom surface of the pressure cover can tightly abut against the other end face of the pressure ring. A through hole for the wiring harness to be inserted is formed on the bottom surface of the pressure cover.

5. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 4, characterized in that: At least two protruding buckles (13) are provided at intervals along the circumference on the outer side surface of one end of the insulating shell. At least two slots (51) are provided on the side wall of one end of the pressure cover which is fitted onto the insulating shell. The protruding buckles at one end of the insulating shell can be fastened to the slots on the side wall of one end of the pressure cover in a one-to-one correspondence.

6. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 5, characterized in that: The pressure cap is fitted onto one end of the insulating shell and is provided with at least one notch structure (52). Each notch structure is located between adjacent slots, and each notch allows the side wall of one end of the pressure cap to expand radially outward.

7. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 4, characterized in that: The cap is a T-shaped sleeve structure with one end having a larger diameter than the other end. The stepped surface between the two ends of the cap forms the bottom surface of the cap, and the wiring harness to be connected extends out through the inner hole at the other end of the cap.

8. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 7, characterized in that: The outer circumference of the other end of the cap and the bottom surface of the outer side of the cap are reinforced by a triangular rib (53).

9. The anti-rotation structure of the high-voltage connector harness shielding adapter shell according to claim 1, characterized in that: The high-voltage connector has a terminal receiving cavity formed inside the insulating housing that is coaxially connected to the circular insertion hole. A terminal (6) is installed in the terminal receiving cavity, and the terminal can be crimped with the conductor of the wire harness to achieve electrical conduction.

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