Charging plug connector tail end cable waterproof structure

Abstract

The utility model relates to a kind of waterproof structure of charging plug connector tail end cable, the connector includes shell and the rear cover being arranged at the rear end of shell, the cable is passed into shell by rear cover, waterproof sealing ring is equipped in rear cover, the rear cover includes the cover body portion of being sleeved in the rear end of shell and fixedly connected, annular portion is on the outer end surface of cover body portion, the annular portion includes left half ring and right half ring of central symmetry, the axial length of right half ring is greater than the axial length of left half ring, right half ring protrudes the outer circumferential surface of left half ring and is wound with radial cable-tightening self-locking strap.The utility model tightens cable on rear cover by self-locking strap, so in the use process of charging plug, even if cable is often in the state of torsion, but because the contact part of cable and waterproof sealing ring is fixed by self-locking strap and is tightened, waterproof sealing ring can not be damaged due to the torsion of cable, so as to effectively ensure the waterproof sealing effect of charging plug.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a waterproof structure for the cable at the tail end of a charging plug connector. Background Technology

[0002] In the connector structure used for charging plugs, certain waterproof measures are usually taken at the cable entry point on the back cover to prevent water from entering the connector during use, causing a series of problems such as short circuits and affecting the normal use of the charging plug.

[0003] However, with the existing connectors featuring a waterproof structure, the cable is directly connected to the connector through the back cover. In actual use, because the cable is often in a twisted state, over time, the torsional force of the cable will cause the waterproof sealing ring inside the back cover to loosen or even fall off, resulting in sealing failure. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a waterproof structure for the tail cable of a charging plug connector that can effectively ensure waterproof sealing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a waterproof structure for the tail cable of a charging plug connector. The connector includes a housing and a rear cover located at the rear end of the housing. The cable passes through the rear cover into the housing. A waterproof sealing ring is provided inside the rear cover. The rear cover includes a cover body portion fitted onto and fixed to the rear end of the housing. The outer end face of the cover body portion has an annular portion. The annular portion includes a centrally symmetrical left half-ring and a right half-ring. The axial length of the right half-ring is greater than the axial length of the left half-ring. A self-locking cable tie for radially securing the cable is wrapped around the outer circumference of the right half-ring protruding from the left half-ring.

[0006] Specifically, a right-angle stop is connected between the outer edge of the outer circumference of the right half ring and the end face of the cover, and the self-locking cable tie passes through the gap between the right-angle stop and the outer circumference of the right half ring to radially tighten the cable.

[0007] Furthermore, the outer edge of the right half-ring has right-angle blocks at both the top and bottom.

[0008] Preferably, the right-angle stop block, the right half-ring, and the cover are integrally formed.

[0009] Furthermore, rectangular slots are respectively provided on the upper and lower sides of the cover to engage with the limiting blocks provided on the shell.

[0010] Furthermore, to improve the overall strength of the back cover, reinforcing ribs with an integral structure are connected between the outer peripheral surfaces of the left and right half-rings and the end face of the cover body.

[0011] The beneficial effects of this utility model are: by using a self-locking cable tie to secure the cable to the back cover, even if the cable is frequently twisted during the use of the charging plug, the part of the cable in contact with the waterproof sealing ring is fixed by the self-locking cable tie, which ensures that the waterproof sealing ring will not be damaged by the twisting of the cable, thus effectively ensuring the waterproof sealing effect of the charging plug. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the back cover described in this utility model.

[0015] In the diagram: 1. Shell, 2. Back cover, 2-1. Cover body, 2-2. Left half ring, 2-3. Right half ring, 3. Cable, 4. Self-locking cable tie, 5. Right-angle stop, 6. Limiting block, 7. Rectangular slot, 8. Reinforcing rib. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] like Figure 1 , Figure 2 The diagram shows a waterproof cable structure for the tail end of a charging plug connector. The connector includes a housing 1 and a rear cover 2 located at the rear end of the housing 1. The cable 3 passes through the rear cover 2 and enters the housing 1. A waterproof sealing ring is provided inside the rear cover 2.

[0018] The rear cover 2 includes an integral cover body 2-1 and an annular part. The cover body 2-1 is fitted onto the rear end of the housing 1 and fixed with screws. The annular part is located on the outer end face of the cover body 2-1. The annular part includes a centrally symmetrical left half ring 2-2 and a right half ring 2-3. The axial length of the right half ring 2-3 is twice the axial length of the left half ring 2-2.

[0019] Right-angle blocks 5 are connected between the upper and lower end faces of the outermost edge of the outermost circumference of the right half-ring 2-3 and the end face of the cover part 2-1. The right-angle blocks 5 are integral with the right half-ring 2-3 and the cover part 2-1.

[0020] A self-locking cable tie 4 is wrapped around the outer circumference of the right half ring 2-3 protruding from the left half ring 2-2. The self-locking cable tie 4 passes through the gap between the right-angle stop block 5 and the outer circumference of the right half ring 2-3 and radially tightens the cable 3.

[0021] Limiting blocks 6 are respectively located on the upper and lower sides of the rear end of the housing 1. The limiting blocks 6 have inclined surfaces that are inclined in the direction of insertion of the rear cover 2. Rectangular slots 7 are respectively opened on the upper and lower sides of the cover body 2-1 of the rear cover 2. When the rear cover 2 is fitted onto the rear end of the housing 1, the inner side of the rectangular slot 7 is engaged with the end face of the limiting block 6 to achieve the installation and positioning of the rear cover 2.

[0022] To improve the overall strength of the back cover 2, reinforcing ribs 8 of an integral structure are connected between the outer peripheral surface of the left half ring 2-2 and the outer peripheral surface of the right half ring 2-3 and the end face of the cover body 2-1, respectively.

[0023] This utility model uses a self-locking cable tie 4 to secure the cable 3 to the back cover 2. Thus, even if the cable 3 is frequently twisted during the use of the charging plug, it remains fixed because the part of the cable 3 in contact with the waterproof sealing ring is secured by the self-locking cable tie 4. This ensures that the waterproof sealing ring will not be damaged by the twisting of the cable 3, thereby effectively ensuring the waterproof sealing effect of the charging plug.

[0024] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A waterproof cable structure for the tail end of a charging plug connector, the connector comprising a housing (1) and a rear cover (2) disposed at the rear end of the housing (1), the cable (3) passing through the rear cover (2) into the housing (1), and a waterproof sealing ring provided inside the rear cover (2), characterized in that: The rear cover (2) includes a cover body (2-1) fitted onto and fixed to the rear end of the housing (1). The outer end face of the cover body (2-1) has an annular portion. The annular portion includes a centrally symmetrical left half ring (2-2) and a right half ring (2-3). The axial length of the right half ring (2-3) is greater than the axial length of the left half ring (2-2). The right half ring (2-3) protrudes from the outer circumference of the left half ring (2-2) and is wrapped with a self-locking cable tie (4) for radially securing the cable (3).

2. The waterproof cable structure at the tail end of the charging plug connector as described in claim 1, characterized in that: A right-angle stop (5) is connected between the outer edge of the outer periphery of the right half ring (2-3) and the end face of the cover (2-1). The self-locking cable tie (4) passes through the gap between the right-angle stop (5) and the outer periphery of the right half ring (2-3) and radially tightens the cable (3).

3. The waterproof cable structure at the tail end of the charging plug connector as described in claim 2, characterized in that: The right half ring (2-3) has right-angle blocks (5) at both the upper and lower ends of the outer edge of the outer circumference.

4. The waterproof cable structure at the tail end of the charging plug connector as described in claim 3, characterized in that: The right-angle stop (5), the right half ring (2-3), and the cover (2-1) are an integral structure.

5. The waterproof cable structure at the tail end of the charging plug connector as described in claim 1, characterized in that: The cover part (2-1) has rectangular slots (7) on its upper and lower sides that engage with the limiting block (6) on the shell (1).

6. The waterproof cable structure at the tail end of the charging plug connector as described in claim 1, characterized in that: The outer circumferential surface of the left half ring (2-2), the outer circumferential surface of the right half ring (2-3), and the end face of the cover part (2-1) are respectively connected by an integral reinforcing rib (8).

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