Cable fixing structure for high-voltage connector

Abstract

The utility model discloses a cable fixing structure for a high-voltage connector, and the structure comprises a cable clamp which comprises a cable clamp base body and a plurality of elastic claw arms, the cable clamp base body is provided with a through hole for a cable to pass through, and the plurality of elastic claw arms are arranged on the cable clamp base body and are distributed around the through hole; limiting protrusions protruding inwards are formed on the heads of the elastic claw arms, first limiting protruding ribs protruding inwards are formed on the elastic claw arms, and the first limiting protruding ribs extend from the roots of the elastic claw arms to be connected with the limiting protrusions; the tail sleeve is arranged on the cable in a sleeving manner; when the tail sleeve moves from the side of the elastic claw arms to the position where the tail sleeve and the wire clamp base body are clamped, the tail sleeve drives the multiple elastic claw arms to be folded inwards, the limiting protrusions and the first limiting convex ribs clamp the cable, and therefore the movable displacement of the cable is limited. According to the structure, a relatively large moving gap between the tail part of the elastic claw and the cable in the prior art is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a cable fixing structure for high-voltage connectors. Background Art

[0002] In order to ensure that the connection between the high-voltage connector and the cable remains stable under various working conditions, the high-voltage connector usually uses a cable fixing assembly to limit the movable displacement of the cable inside the connector.

[0003] The cable fixing assembly generally includes a wire clamp and a tail sleeve, wherein the wire clamp includes a wire clamp base and a plurality of elastic claw arms, the wire clamp base is provided with a through hole for the cable to pass through, and the plurality of elastic claw arms are provided on the wire clamp base and distributed around the through hole; the tail sleeve is sleeved on the cable and can move from the elastic claw arm side toward the wire clamp base until it is engaged with the wire clamp base, during which the tail sleeve drives the plurality of elastic claw arms to retract inward, and the heads of the elastic claw arms clamp the cable, thereby limiting the movable displacement of the cable.

[0004] However, when the existing wire clamp clamps the cable through the head of the elastic claw, a large movable gap is formed between the tail of the elastic claw and the cable, which is not conducive to the stability of electrical performance.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0006] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a cable fixing structure for a high-voltage connector with stronger electrical performance stability in view of the deficiencies in the prior art.

[0007] In order to solve the above technical problems, the utility model discloses a cable fixing structure for a high voltage connector, the structure comprising:

[0008] A wire clamp, comprising a wire clamp base and a plurality of elastic claw arms, wherein the wire clamp base is provided with a through hole for allowing a cable to pass through, and the plurality of elastic claw arms are provided on the wire clamp base and distributed around the through hole; a limiting protrusion protruding inward is formed on the head of the elastic claw arm, and a first limiting convex rib protruding inward is formed on the elastic claw arm, and the first limiting convex rib extends from the root of the elastic claw arm to connect with the limiting protrusion;

[0009] and a tail sleeve, which is sleeved on the cable; when the tail sleeve moves from the elastic claw arm side toward the position where it is engaged with the wire clamp base, the tail sleeve drives the multiple elastic claw arms to retract inward, and the limiting protrusion and the first limiting rib both clamp the cable, thereby limiting the movable displacement of the cable.

[0010] Further, the wire clamp further includes a second limiting rib, the second limiting rib is arranged on the back of the elastic claw arm, and the second limiting rib is pushed by the tail sleeve to make the elastic claw arm close inwards.

[0011] Specifically, an inclined tail sleeve guiding surface is arranged on the back of the head end of the second limiting rib.

[0012] Specifically, the second limiting rib extends from the head end of the elastic claw arm and is connected to the wire clamp base body.

[0013] Further, third inclined reinforcing ribs protruding inwards are respectively formed on both sides of the elastic claw arm located at the first limiting rib.

[0014] Specifically, one end of the third inclined reinforcing rib is fixedly connected to the middle part of the elastic claw arm, and the other end of the third inclined reinforcing rib is fixedly connected to the limiting protrusion.

[0015] Specifically, a cable guiding surface is arranged at the head end of the limiting protrusion.

[0016] Specifically, the wire clamp is connected to the shell of the high-voltage connector.

[0017] Specifically, there are eight elastic claw arms.

[0018] More specifically, the eight elastic claw arms are evenly distributed around the through hole.

[0019] Beneficial effects:

[0020] The utility model provides a cable fixing structure for a high-voltage connector. By forming a first limiting rib protruding inwards on the elastic claw arm, the first limiting rib extends from the root of the elastic claw arm and is connected to the limiting protrusion formed at the head of the elastic claw arm and protruding inwards; when the tail sleeve moves from the side of the elastic claw arm towards the position clamped with the wire clamp base body, the tail sleeve drives the plurality of elastic claw arms to close inwards, and the limiting protrusion and the first limiting rib both clamp the cable, thereby restricting the movement displacement of the cable. This structure eliminates the large movement gap existing between the tail of the elastic claw and the cable in the prior art, so that the high-voltage connector adopting this structure has stronger electrical performance stability. Description of the drawings

[0021] The following further specifically describes the present utility model in conjunction with the drawings and specific embodiments, and the above and / or other advantages of the present utility model will become clearer.

[0022] Figure 1The main cross-sectional view of the assembly structure between the wire clamp and the cable when the cable fixing component in the prior art fixes the cable;

[0023] Figure 2 The main cross-sectional view of the assembly structure between the wire clamp and the cable when the cable fixing component disclosed in the embodiment of the present invention fixes the cable;

[0024] Figure 3 is Figure 2 the exploded view of the cable fixing component shown;

[0025] Figure 4 is Figure 2 the three-dimensional schematic of the wire clamp in the cable fixing component shown Figure 1 ;

[0026] Figure 5 is Figure 2 the three-dimensional schematic of the wire clamp in the cable fixing component shown Figure 2 .

[0027] The description of the reference numerals is as follows:

[0028] 1, wire clamp; 11, wire clamp base; 12, elastic claw arm; 2, cable; 111, through hole; 13, limit protrusion; 14, first limit rib; 3, tail sleeve; 15, second limit rib; 151, tail sleeve guiding surface; 16, third inclined reinforcing rib; 131, cable guiding surface. Detailed implementation manners

[0029] Referring to Figure 1 , in the related art, the cable fixing component includes a wire clamp 1 and a tail sleeve 3. Among them, the wire clamp 1 includes a wire clamp base 11 and a plurality of elastic claw arms 12. The wire clamp base 11 is provided with a through hole 111 for the cable to pass through, and the plurality of elastic claw arms 12 are arranged on the wire clamp base 11 and distributed around the through hole 111. The tail sleeve 3 is sleeved on the cable 2 and can move from the side of the elastic claw arms towards the wire clamp base 11 until it is clamped with the wire clamp base 11. During this process, the tail sleeve 3 drives the plurality of elastic claw arms 12 to close inwards, and the heads of the elastic claw arms 12 clamp the cable 2, thereby restricting the movement displacement of the cable 2.

[0030] However, when the existing wire clamp clamps the cable with the head of the elastic claw, referring to Figure 1 , there is a large movement gap between the tail of the elastic claw arm 12 and the cable 2, which is not conducive to the stability of the electrical performance.

[0031] Referring to Figures 2 to 5 , the present invention provides a cable fixing structure for a high-voltage connector, and this structure includes a wire clamp 1 and a tail sleeve 3.

[0032] Referring to Figure 4 and Figure 5The wire clamp 1 includes a wire clamp base 11 and a plurality of elastic claw arms 12. The wire clamp base 11 is provided with a through hole 111 for the cable 2 to pass through. The plurality of elastic claw arms 12 are provided on the wire clamp base 11 and distributed around the through hole 111. A limiting protrusion 13 protruding inward is formed at the head of the elastic claw arm 12. The elastic claw arm 12 is formed with a first limiting rib 14 protruding inward. The first limiting rib 14 extends from the root of the elastic claw arm 12 and connects to the limiting protrusion 13.

[0033] See also Figure 3 The tail sleeve 3 is sleeved on the cable 2. When the tail sleeve 3 moves from the elastic claw arm side toward the position of engaging with the clamp base 11, the tail sleeve 3 drives the multiple elastic claw arms 12 to retract inwards. Figure 2 The limiting protrusion 13 and the first limiting rib 14 both clamp the cable, thereby limiting the movable displacement of the cable.

[0034] The structure provided by the utility model eliminates the large movable gap between the tail of the elastic claw and the cable in the prior art by setting the first limiting rib 14, and at the same time enhances the strength of the elastic claw arm 12, so that the high-voltage connector adopting this structure has stronger electrical performance stability.

[0035] For further information, see Figure 4 and Figure 5 The wire clamp 1 further comprises a second limiting rib 15, which is arranged on the back of the elastic claw arm 12. The second limiting rib 15 is pushed by the tail sleeve 3 to make the elastic claw arm 12 retract inward.

[0036] In this embodiment, the second limiting rib 15 is provided to increase the clamping force of the wire clamp 1 on the cable 2 .

[0037] For details, see Figure 4 and Figure 5 In order to facilitate the insertion of the wire clamp 1 into the tail sleeve, an inclined tail sleeve guide surface 151 is provided on the back side of the head end of the second limiting rib 15 .

[0038] For details, see Figure 4 and Figure 5 The second limiting rib 15 extends from the head end of the elastic claw arm 12 to connect the wire clamp base 11.

[0039] Further, see Figure 4 and Figure 5 The elastic claw arm 12 is also formed with third inclined reinforcing ribs 16 protruding inward on both sides of the first limiting convex rib 14.

[0040] In this embodiment, the third inclined reinforcing rib 16 is provided to increase the clamping force of the head of the elastic claw arm 12 on the cable 2 .

[0041] For details, see Figure 4and Figure 5 One end of the third inclined reinforcing rib 16 is fixedly connected to the middle part of the elastic claw arm 12, and the other end of the third inclined reinforcing rib 16 is fixedly connected to the limiting protrusion 13.

[0042] Specifically, referring to Figure 4 In order to facilitate the cable to pass into the wire clamp 1, a cable guiding surface 131 is provided at the head end of the limiting protrusion 13.

[0043] Specifically, the wire clamp 1 is connected to the housing of the high-voltage connector.

[0044] Specifically, referring to Figure 4 and Figure 5 There are eight elastic claw arms 12. The eight elastic claw arms 12 are evenly distributed around the through hole 111.

[0045] It should be understood that the number of the elastic claw arms 12 in this embodiment is not limited to eight, but can be set to multiple, and adjusted according to the thickness of the cable.

[0046] The present invention provides an idea and method for a cable fixing structure for a high-voltage connector. There are many methods and ways to specifically implement this technical solution. The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the prior art.

Claims

1. A cable fixing structure for a high-voltage connector, characterized in that, include: A wire clamp (1) comprises a wire clamp base (11) and a plurality of elastic claw arms (12), wherein the wire clamp base (11) is provided with a through hole (111) for allowing a cable (2) to pass through, and the plurality of elastic claw arms (12) are arranged on the wire clamp base (11) and distributed around the through hole (111); a limiting protrusion (13) protruding inwardly is formed at the head of the elastic claw arm (12), and a first limiting convex rib (14) protruding inwardly is formed on the elastic claw arm (12), and the first limiting convex rib (14) extends from the root of the elastic claw arm (12) and is connected to the limiting protrusion (13); and a tail sleeve (3) which is sleeved on the cable (2); when the tail sleeve (3) moves from the elastic claw arm side toward the position where it is engaged with the wire clamp base (11), the tail sleeve (3) drives the plurality of elastic claw arms (12) to retract inward, and the limiting protrusion (13) and the first limiting rib (14) both clamp the cable, thereby limiting the movable displacement of the cable.

2. The cable fixing structure for a high-voltage connector according to claim 1, characterized in that, It also comprises a second limiting convex rib (15), which is arranged on the back side of the elastic claw arm (12), and the second limiting convex rib (15) is pushed by the tail sleeve (3) to make the elastic claw arm (12) retract inwards.

3. The cable fixing structure for a high-voltage connector according to claim 2, characterized in that, The back side of the head end of the second limiting convex rib (15) is provided with an inclined tail sleeve guide surface (151).

4. The cable fixing structure for a high-voltage connector according to claim 2, characterized in that, The second limiting rib (15) extends from the head end of the elastic claw arm (12) and is connected to the wire clamp base (11).

5. The cable fixing structure for a high-voltage connector according to claim 1, characterized in that, The elastic claw arm (12) is also provided with inwardly protruding third inclined reinforcing ribs (16) on both sides of the first limiting convex rib (14).

6. The cable fixing structure for a high-voltage connector according to claim 5, characterized in that, One end of the third inclined reinforcing rib (16) is fixedly connected to the middle portion of the elastic claw arm (12), and the other end of the third inclined reinforcing rib (16) is fixedly connected to the limiting protrusion (13).

7. The cable fixing structure for a high-voltage connector according to claim 1, characterized in that, The head end of the limiting protrusion (13) is provided with a cable guiding surface (131).

8. The cable fixing structure for a high-voltage connector according to claim 1, characterized in that, The wire clamp (1) is connected to the housing of the high-voltage connector.

9. The cable fixing structure for a high-voltage connector according to claim 1, characterized in that The elastic claw arms (12) are provided with eight.

10. The cable fixing structure for a high-voltage connector according to claim 9, characterized in that, The eight elastic claw arms (12) are evenly distributed around the through hole (111).

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