Sealing ring fixing and pressing structure

Abstract

The utility model discloses a sealing ring fixing and pressing structure, and solves the problem that in the prior art, when a connector is inserted obliquely in a limited manner, a sealing ring is pushed to be deviated and moves, and sealing fails. The utility model relates to a sealing ring fixing and pressing structure, which comprises a fixing clip used for limiting a sealing ring on a female end connector, the fixing clip is clamped in the female end connector and is matched with a male end connector, and a guide opposite insertion mechanism is arranged between the female end connector and the male end connector. The fixing clip limits the sealing ring in the axial direction and the circumferential direction, so that the problem of off tracking of the connector in the plug-in process is prevented; the guiding opposite insertion mechanism avoids large-angle oblique insertion and avoids the problem of limit oblique insertion as much as possible. The sealing ring fixing and pressing structure is designed to be adaptive to a 90-degree wire outlet connector, so that the safety and the reliability of a connector system can be improved, the connector can be ensured to stably and reliably work in high-voltage wire harness application, and strict requirements of the new energy automobile field on high safety and reliability can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage connectors, in particular to a compression and fixing structure for a connector sealing ring. Background Art

[0002] In the automotive industry, during the actual mating process of high-voltage connectors, the sealing ring can be pushed and displaced due to the angle between the male and female connectors, especially when inserted at extreme angles. This can lead to seal failure and, in turn, connector failures such as water ingress. This defect not only compromises connector quality but also increases safety risks when driving through water. This problem is particularly common in sheet-type high-current connectors.

[0003] In the new energy vehicle industry, quality and safety have always been one of the most critical considerations. With the popularization of electric vehicles, the safety requirements for high-voltage electrical products are also increasing. Therefore, in the design of wiring harness connectors, how to ensure the reliable connection of the connector is particularly important. In the existing technology, such as the high-voltage connector sealing ring limit cover lock structure with publication number CN 218448624 U, the axial limit of the sealing ring is increased to a certain extent, but when the connector is inserted at an extreme angle, the sealing ring is still pushed aside and displaced, resulting in sealing failure. Therefore, it is necessary to develop a sealing ring fixing and clamping structure that can fully limit the sealing ring, so that the sealing requirements can be met even when it is inserted at an extreme angle, so as to meet the high standards of safety and reliability in the automotive industry. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a sealing ring fixing and pressing structure, which solves the problem in the prior art that when the connector is inserted at an extreme angle, the sealing ring may be pushed and shifted, resulting in sealing failure.

[0005] The technical solution of the present utility model is achieved as follows: a sealing ring fixing and pressing structure includes a fixing clip for retaining the sealing ring on the female connector. The fixing clip is engaged with the female connector and cooperates with the male connector. A guide plug-in mechanism is provided between the female and male connectors. The fixing clip limits the sealing ring in the axial and circumferential directions to prevent deviation during connector insertion. The guide plug-in mechanism is used to avoid large angle insertion and minimize the problem of extreme angle insertion.

[0006] Further preferably, the fixing clip includes an integrally formed inner shell and outer shell, the top of the inner shell is flush with the outer shell and forms a socket slot with the outer shell through a top ring plate; the bottom of the inner shell extends out of the outer shell to form a convex structure, and the bottom surface of the outer shell is provided with a limiting ring corresponding to the sealing ring.

[0007] Further preferably, the cross section of the limiting ring is a right triangle, and the hypotenuse of the right triangle faces the sealing ring; while the sealing ring is axially limited, its radial deformation seal is not affected.

[0008] Further preferably, the bottom of the inner housing is provided with a plurality of clamping arms, and the bottom of the clamping arms is provided with a clamping hook portion facing outward. The provision of the clamping arms facilitates the fixing clip to be stably clamped in the female connector.

[0009] Further preferably, the female connector is provided with a socket ring that cooperates with the socket slot, and the outer wall of the socket ring is provided with a positioning boss for a limiting sealing ring. The limiting ring and the positioning boss cooperate to axially position the sealing ring, which plays the role of clamping the sealing ring to ensure that the sealing ring can be firmly set on the socket ring of the female connector.

[0010] As a first preferred embodiment, the guide plug-in mechanism includes a guide groove provided on the inner wall of the female connector and a guide rib provided on the outer wall of the male connector, and the guide rib is plugged into and fitted with the guide groove.

[0011] Among them, at least one guide rib is provided on each surface of the outer wall of the male end connector, and at least one guide groove is provided on each surface of the inner wall of the female end connector, and the guide ribs correspond to the guide grooves one by one.

[0012] As a second preferred embodiment, the guide plug-in mechanism includes a guide rib provided on the inner wall of the female connector and a guide groove provided on the outer wall of the male connector, and the guide rib is plug-fitted with the guide groove.

[0013] Among them, at least one guide groove is provided on each surface of the outer wall of the male end connector, and at least one guide rib is provided on each surface of the inner wall of the female end connector, and the guide ribs correspond to the guide grooves one by one.

[0014] Preferably, the female connector has a 90° outlet, and the male connector and the female connector are vertically plugged in and matched, so as to adapt to connectors that need to be installed in a corner.

[0015] The beneficial effects of the present invention are as follows: the sealing ring fixing and pressing structure of the present invention uses a fixing clip to fix the sealing ring in the female connector, ensuring that the sealing ring firmly seals between the female connector and the male connector; at the same time, the setting of the plug-in guide mechanism ensures that the male and female connectors are plugged in smoothly, avoiding the problem of extreme oblique plug-in, and reducing the probability that the sealing ring will be pushed aside and shifted during extreme oblique plug-in, resulting in sealing failure.

[0016] The utility model uses a fixed clip limiting ring and a positioning boss to limit the sealing ring from two positions, one above and one below, respectively, which plays a clamping role to a certain extent, ensuring that the sealing ring can be firmly set on the socket ring of the female connector. The inclined surface of the limiting ring cooperates with the inclined surface of the sealing ring to form an axial limit for the sealing ring without affecting its radial deformation seal; the inclined surface cooperation improves the limiting stability of the sealing ring. The fixing clip increases the height of the shell, that is, increases the limiting step of the sealing ring fixing clip, so that when the high-voltage connector is inserted at an extreme angle, the probability of contacting the sealing ring first is reduced, thereby reducing the risk of the sealing ring being pushed during extreme oblique insertion; it also improves the compression strength and firmness of the sealing ring and the water safety of the car.

[0017] The sealing ring fixing and pressing structure design of this utility model is suitable for 90° outlet connectors, which helps to improve the safety and reliability of the connector system, ensures that the connector can work stably and reliably in high-voltage wire harness applications, and meets the strict requirements of high safety and reliability in the new energy vehicle field. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a top view of the fixing clip of the utility model.

[0020] Figure 2 This is a schematic cross-sectional view of a fixing clip of the present utility model.

[0021] Figure 3 This is a bottom view of the fixing clip of the utility model.

[0022] Figure 4 Schematic diagram of securing the seal ring in the female connector using the clip.

[0023] Figure 5 Schematic diagram of the sealing ring fixed in the female connector and the male connector.

[0024] Figure 6 This is a schematic diagram of the male connector structure.

[0025] Figure 7 This is a schematic diagram of the female connector structure.

[0026] Figure 8 This is a schematic diagram of the male connector and the female connector being plugged in. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 8 As shown, embodiment 1, a sealing ring fixing and pressing structure, includes a fixing clip 3 for limiting the sealing ring 2 on the female connector 1, the fixing clip 3 is clamped in the female connector 1 and cooperates with the male connector 4; the fixing clip fixes the sealing ring in the female connector to ensure that the sealing ring firmly seals between the female connector 1 and the male connector 4, and a guide plug-in mechanism is provided between the female connector 1 and the male connector 4; the guide plug-in mechanism serves as a plug-in guide mechanism between the female connector 1 and the male connector 4 to ensure smooth plug-in between the two, avoid the problem of extreme oblique plug-in, and reduce the probability that the sealing ring will be pushed aside and shifted during extreme oblique plug-in, resulting in sealing failure.

[0029] like Figure 1 、 3 As shown, in this embodiment, the fixing clip 3 preferably comprises an inner shell 31 and an outer shell 32 formed in one piece. The top of the inner shell 31 is flush with the outer shell 32 and forms a socket with the outer shell 32 through a top ring plate 33; the bottom of the inner shell 31 extends out of the outer shell 32 to form a convex structure; the bottom surface of the outer shell 32 is provided with a limiting ring 34 corresponding to the sealing ring 2. The above design increases the height of the shell, that is, increases the limiting step of the sealing ring fixing clip, so that when the high-voltage connector is inserted at an extreme angle, the probability of contacting the sealing ring first is reduced, thereby reducing the risk of the sealing ring being displaced during extreme angle insertion. In addition, the above structural design improves the compression strength and firmness of the sealing ring, thereby improving the car's wading safety.

[0030] like Figure 2 As shown in Example 2, a sealing ring fixing and pressing structure, based on Example 1, the cross-section of the limiting ring 34 in this embodiment is a right triangle, with the hypotenuse of the right triangle facing the sealing ring 2. The cross-section of the limiting ring 34 can also be a right trapezoid, with the hypotenuse of the right trapezoid facing the sealing ring 2. The top surface of the sealing ring is an inclined surface. The inclined surface of the limiting ring cooperates with the inclined surface of the sealing ring to form an axial limit for the sealing ring without affecting its radial deformation seal; the inclined surface cooperation improves the limiting stability of the sealing ring.

[0031] In this embodiment, the bottom of the inner housing 31 is provided with a plurality of engaging arms 35, each with an outwardly facing hook portion 36 at its bottom. Preferably, at least four engaging arms are provided on the outer wall of the bottom of the inner housing 31, with two engaging arms positioned in the middle. The hook portions of the two middle engaging arms are arranged in opposite directions. The multiple engaging arms cooperate to stably engage the fixing clip within the female connector, while also enhancing the fixing clip's securing effect on the sealing ring.

[0032] like Figure 4 、 5 As shown, the female connector 1 of this embodiment is equipped with a socket ring 12 that mates with the socket. The outer wall of the socket ring 12 is provided with a positioning boss 13 that limits the position of the sealing ring 2. A limiting ring 34 cooperates with the positioning boss 13 to axially position the sealing ring 2. The limiting ring 34 and the positioning boss 13 limit the position of the sealing ring from two positions, respectively, providing a certain degree of clamping effect, ensuring that the sealing ring is firmly fixed to the socket ring of the female connector.

[0033] like Figure 6 、 7 As shown, in this embodiment, as a preferred implementation, the guide plug-in mechanism includes a guide groove 11 provided on the inner wall of the female connector 1 and a guide rib 41 provided on the outer wall of the male connector 4, and the guide rib 41 is plugged into and matched with the guide groove 11. Preferably, at least one guide rib 41 is provided on each surface of the outer wall of the male connector 4, and at least one guide groove 11 is provided on each surface of the inner wall of the female connector 1, and the guide ribs 41 and the guide grooves 11 correspond one to one; the guide ribs 41 and the guide grooves 11 are evenly distributed on each surface of the connector connection surface to avoid large-angle oblique insertion; in particular, they need to be provided at the mating fillet so that the sealing ring will not be displaced when the connectors are plugged into each other.

[0034] Example 3, a sealing ring fixing and pressing structure, based on Example 1, the cross-section of the limiting ring 34 in this example is a right triangle, with the hypotenuse of the right triangle facing the sealing ring 2. The cross-section of the limiting ring 34 can also be a right trapezoid, with the hypotenuse of the right trapezoid facing the sealing ring 2. The top surface of the sealing ring is an inclined surface. The inclined surface of the limiting ring cooperates with the inclined surface of the sealing ring to form an axial limit for the sealing ring while not affecting its radial deformation seal. The inclined surface cooperation improves the stability of the sealing ring limit.

[0035] In this embodiment, the bottom of the inner housing 31 is provided with a plurality of engaging arms 35, each with an outwardly facing hook portion 36 at its bottom. Preferably, at least four engaging arms are provided on the outer wall of the bottom of the inner housing 31, with two engaging arms positioned in the middle. The hook portions of the two middle engaging arms are arranged in opposite directions. The multiple engaging arms cooperate to stably engage the fixing clip within the female connector, while also enhancing the fixing clip's securing effect on the sealing ring.

[0036] In this embodiment, the female connector 1 is equipped with a socket ring 12 that mates with the socket. The outer wall of the socket ring 12 is provided with a positioning boss 13 that limits the position of the sealing ring 2. A limiting ring 34 cooperates with the positioning boss 13 to axially position the sealing ring 2. The limiting ring 34 and the positioning boss 13 respectively limit the position of the sealing ring from two positions, providing a certain degree of clamping effect, ensuring that the sealing ring is firmly seated on the female connector's socket ring.

[0037] In this embodiment, as another implementation method, the guide plug-in mechanism includes a guide rib 41 provided on the inner wall of the female connector 1 and a guide groove 11 provided on the outer wall of the male connector 4, and the guide rib 41 is plugged into and matched with the guide groove 11. Among them, at least one guide groove 11 is provided on each surface of the outer wall of the male connector 4, and at least one guide rib 41 is provided on each surface of the inner wall of the female connector 1, and the guide ribs 41 correspond one-to-one with the guide grooves 11. The guide ribs 41 and the guide grooves 11 are evenly distributed on each surface of the connector connection surface to avoid large-angle oblique insertion; in particular, they need to be provided at the mating fillet so that the sealing ring will not be pushed when the connectors are plugged into each other.

[0038] like Figure 8 As shown, in this embodiment, as a preferred implementation, the female connector 1 has a 90° outlet, and the male connector 4 is vertically plugged into the female connector 1 to adapt to connectors that need to be installed in a corner, thereby improving the applicability of the connector and cooperating with the sealing ring to improve the overall sealing of the connector.

[0039] The sealing ring fixed compression structure design in the connector of this utility model helps to improve the safety and reliability of the connector system, ensuring that the connector can work stably and reliably in high-voltage wiring harness applications, and meets the strict requirements for high safety and reliability in the new energy vehicle field.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealing ring fixing and pressing structure, characterized by: It comprises a fixing clip (3) for limiting the sealing ring (2) on the female connector (1), the fixing clip (3) is clamped in the female connector (1) and matched with the male connector (4), and a guiding plug-in mechanism is provided between the female connector (1) and the male connector (4).

2. The sealing ring fixing and pressing structure according to claim 1, characterized in that: The fixing clip (3) comprises an inner shell (31) and an outer shell (32) formed integrally. The top of the inner shell (31) is flush with the outer shell (32) and forms a socket with the outer shell (32) through a top ring plate (33). The bottom of the inner shell (31) extends out of the outer shell (32) to form a convex structure. The bottom surface of the outer shell (32) is provided with a limiting ring (34) corresponding to the sealing ring (2).

3. The sealing ring fixing and pressing structure according to claim 2, characterized in that: The cross section of the limiting ring (34) is a right triangle, and the hypotenuse of the right triangle faces the sealing ring (2).

4. The sealing ring fixing and pressing structure according to claim 2 or 3, characterized in that: A plurality of clamping arms (35) are provided at the bottom of the inner shell (31), and a clamping hook portion (36) facing outward is provided at the bottom of the clamping arms (35).

5. The sealing ring fixing and pressing structure according to claim 4, characterized in that: The female connector (1) is provided with a socket ring (12) that matches the socket slot, and the outer wall of the socket ring (12) is provided with a positioning boss (13) for limiting the sealing ring (2), and the limiting ring (34) cooperates with the positioning boss (13) to axially position the sealing ring (2).

6. The sealing ring fixing and pressing structure according to claim 1 or 5, characterized in that: The guide plug-in mechanism comprises a guide groove (11) provided on the inner wall of the female connector (1) and a guide rib (41) provided on the outer wall of the male connector (4), wherein the guide rib (41) is plug-fitted to the guide groove (11).

7. The sealing ring fixing and pressing structure according to claim 6, characterized in that: At least one guide rib (41) is provided on each surface of the outer wall of the male connector (4), and at least one guide groove (11) is provided on each surface of the inner wall of the female connector (1), and the guide ribs (41) correspond to the guide grooves (11) in a one-to-one manner.

8. The sealing ring fixing and pressing structure according to claim 1 or 5, characterized in that: The guide plug-in mechanism comprises a guide rib (41) provided on the inner wall of the female connector (1) and a guide groove (11) provided on the outer wall of the male connector (4), wherein the guide rib (41) and the guide groove (11) are plug-fitted.

9. The sealing ring fixing and pressing structure according to claim 8, characterized in that: At least one guide groove (11) is provided on each surface of the outer wall of the male connector (4), and at least one guide rib (41) is provided on each surface of the inner wall of the female connector (1), and the guide ribs (41) correspond to the guide grooves (11) one by one.

10. The sealing ring fixing and pressing structure according to claim 7 or 9, characterized in that: The female connector (1) has a 90° direction for wire outlet, and the male connector (4) is vertically plugged into and fitted with the female connector (1).

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