Flexible sealing element and wire connection sealing mechanism

Abstract

The utility model provides a flexible sealing element and wire connection sealing mechanism, which comprises a sealing sleeve body, the head end of the sealing sleeve body is used for being fixedly connected with a wire, the tail end of the sealing sleeve body is used for being fixedly connected with a wire inlet port of a connector, the sealing sleeve body is axially provided with a cavity I for the wire to pass through, and the cavity I is provided with a cavity II for the wire to pass through. A sealing rib I is formed at the head end of the cavity I, the sealing rib I is arranged in a port of the cavity I in a circumferential surrounding mode, and the sealing rib I is used for being connected to a wire in a pressing mode. A sealing rib II is formed at the tail end of the cavity I, and the sealing rib II is arranged in the port of the cavity I in a circumferential surrounding mode. And the sealing rib II is used for being crimped at the wire inlet port of the connector. According to the device, the flexible sealing structure is matched with the row or rod type conducting wire, when the row or rod type conducting wire is eccentric due to processing, the flexible sealing piece can be adjusted in a self-adaptive mode, uniform compression of the rubber sealing rib is guaranteed, and finally the sealing problem of the connecting position of the row or rod type product is effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicle charging technology, specifically relating to a flexible sealing element and a wire connection sealing mechanism. Background Technology

[0002] In existing technologies, the current is increasing when new energy vehicles use charging sockets. When the bending radius of the wires is too large, it will restrict the vehicle's layout. Using bar or rod-type products can significantly increase the current carrying capacity and reduce the bending radius.

[0003] Because rods or bars are made of relatively hard materials, and due to inherent processing tolerances, the conductors in these conductors may exhibit issues such as… Figure 1 The eccentricity shown necessitates adding a sealing plug opening at the rear fixed end (not shown) to absorb the machining tolerances of the wire itself. This, in turn, leads to uneven compression of the sealing rib 91 at the sealing plug 9 port, easily causing poor sealing. To seal the connection points of bar or rod-type products, a novel sealing structure needs to be designed to solve the aforementioned sealing problem in the case of eccentricity in bar or bar-type wires. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a flexible sealing element and a wire connection sealing mechanism. This device has been optimized and improved in structure. Through the flexible sealing structure and the cooperation with the row or rod type wire, when the row or rod type wire becomes eccentric due to processing reasons, the flexible sealing element on the outside of the wire will adaptively adjust, ultimately ensuring the uniform compression of the rubber sealing rib, effectively ensuring the sealing problem at the connection of the row or rod type product.

[0005] One objective of this utility model is to provide a flexible sealing element, including a sealing sleeve body. The head end of the sealing sleeve body is used for fixed connection with a wire, and the tail end of the sealing sleeve body is used for fixed connection with the inlet port of a connector. The sealing sleeve body has a cavity I formed along the axial direction for the wire to pass through. A sealing rib I is formed at the head end of the cavity I. The sealing rib I is arranged circumferentially around the port of the cavity I and is used to be pressed onto the wire. A sealing rib II is formed at the tail end of the cavity I. The sealing rib II is arranged circumferentially around the port of the cavity I and is used to be pressed onto the inlet port of the connector.

[0006] As a preferred embodiment, the head end of the sealing sleeve body is provided with a crimping shell I, and the head end of the sealing sleeve body is located inside the crimping shell I, for crimping the sealing rib I onto the wire.

[0007] The tail end of the sealing sleeve body is provided with a crimping shell II, and the tail end of the sealing sleeve body is installed inside the crimping shell II for crimping the sealing rib II onto the inlet port of the connector.

[0008] As a preferred embodiment, the crimping shell I has a cavity II formed along the axial direction. The cavity II includes a wire end cavity at the head end and a crimping cavity at the tail end. The head end of the sealing sleeve body extends into the crimping cavity and is fixedly connected to it.

[0009] The crimp shell II has a cavity III formed along the axial direction. The head end of the cavity III is connected to the tail end of the sealing sleeve body, and the tail end of the cavity III is used to connect to the inlet port of the connector.

[0010] As a preferred embodiment, the head end of the sealing sleeve body is fixedly connected to the pressing shell I by means of forced installation or encapsulation; the tail end of the sealing sleeve body is fixedly connected to the pressing shell II by means of forced installation or encapsulation.

[0011] As a preferred embodiment, the crimp housing II is used to connect with the connector docking port via a snap-fit ​​method.

[0012] As a preferred embodiment, a stop is formed on the inner wall of the crimp housing II. The stop is used to cooperate with the inlet port of the connector to limit the axial insertion position of the inlet port of the connector.

[0013] As a preferred embodiment, there are two or more sealing ribs I arranged in the axial direction; and / or there are two or more sealing ribs II arranged in the axial direction.

[0014] As a preferred embodiment, the outer periphery of the head end of the sealing sleeve body is provided with an outwardly protruding rib I for contacting the inner wall of cavity II, and the outer periphery of the tail end of the sealing sleeve body is provided with an outwardly protruding rib II for contacting the inner wall of cavity III.

[0015] As a preferred embodiment, the sealing sleeve body is made of rubber.

[0016] As a preferred embodiment, the press-fit shell I and press-fit shell II are made of plastic.

[0017] The second objective of this utility model is to provide a wire connection sealing mechanism, including any of the flexible sealing elements described above.

[0018] As a preferred embodiment, the connecting end of the wire passes through the flexible seal and extends into the connector through the inlet port for electrical connection.

[0019] As a preferred embodiment, the connector's inlet port is provided with a limiting stage, which cooperates with the stop stage.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] Firstly, this utility model provides a flexible sealing element. Through structural optimization and improvement, when the flexible sealing element cooperates with a row or rod-type conductor, the sealing sleeve of the flexible sealing element automatically becomes eccentric when the row or rod-type conductor is eccentric, ultimately ensuring uniform compression of the sealing ribs. This effectively solves the problem of poor sealing caused by uneven compression of the sealing sleeve due to eccentricity of the row or rod-type conductor in the prior art.

[0022] Secondly, considering the end connection and fixing effect of the sealing sleeve, this utility model also provides a compression shell I and a compression shell II at both ends of the sealing sleeve. The two ends of the sealing sleeve can be connected to the compression shell I and the compression shell II by means of forced installation or injection molding. This enables a more secure sealing connection between the two ends of the sealing sleeve and the wires and connectors respectively.

[0023] Thirdly, this solution considers the ease of connection between the crimp housing II and the connector. A snap-fit ​​structure is provided at the connector joint of the crimp housing II and the connector, enabling quick assembly and disassembly of the sealing sleeve and the connector. The crimp housing II also has an internal stop plate. Through the cooperation of the stop plate with the connector joint end, the crimp housing II and the connector can be quickly and accurately inserted into place. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 Schematic diagram of a poorly sealed structure for bar or rod-type conductors;

[0026] Figure 2 The three-dimensional wire connection sealing mechanism of this utility model Figure 1 ;

[0027] Figure 3 The three-dimensional wire connection sealing mechanism of this utility model Figure 2 ;

[0028] Figure 4 A cross-sectional view of the wire connection sealing mechanism of this utility model. Figure 1 ;

[0029] Figure 5 A cross-sectional view of the wire connection sealing mechanism of this utility model. Figure 2 ;

[0030] Figure 6 This is a schematic diagram showing the connection between the flexible seal and the connector of this utility model;

[0031] Figure 7 This is a cross-sectional view of the flexible seal and connector of this utility model;

[0032] Figure 8 This is an exploded view of the wire connection sealing mechanism of this utility model;

[0033] Figure 9 This is a cross-sectional view of the sealing sleeve body of this utility model;

[0034] Figure 10 This is a cross-sectional view of the press-fit shell I of this utility model;

[0035] Figure 11 This is a perspective view of the press-fit shell II of this utility model;

[0036] Figure 12 This is a cross-sectional view of the press-fit shell II of this utility model;

[0037] Marked in the image:

[0038] 1. Sealing sleeve body;

[0039] 11. Cavity I, 12. Sealing Rib I, 13. Sealing Rib II, 14. Sealing Cavity I, 15. Sealing Cavity II, 16. Connecting Cavity I, 17. Outward Protruding Rib I, 18. Outward Protruding Rib II;

[0040] 2. Press-fit shell I;

[0041] 21. Cavity II; 211. Wire end cavity; 212. Crimping cavity; 213. Connecting cavity II;

[0042] 3. Press-fit shell II;

[0043] 31. Cavity III; 32. Clamping plate; 321. Clamping hole; 33. Stop plate; 34. Edge seam; 35. Reinforcing rib;

[0044] 4. Bolts;

[0045] 41. Gasket;

[0046] 6. Wires;

[0047] 61. Connecting hole;

[0048] 7. Connectors;

[0049] 71. Connector housing; 72. Locking block; 73. Conductive connector base; 74. Limiting platform; 75. Threaded hole; 76. Inlet port.

[0050] 8. Strip or rod-shaped conductors;

[0051] 9. Sealing plug;

[0052] 91. Sealing rib;

[0053] 10. Flexible seals. Detailed Implementation

[0054] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0055] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," and similar words used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0056] Example 1

[0057] As shown in the figure, this embodiment provides a flexible seal, including a sealing sleeve body 1. Both ends of the sealing sleeve body 1 are used for fixed connection to a wire 6 and a connector 7, respectively. The end of the sealing sleeve body 1 connected to the wire 6 is the head end, and the end connected to the connector 7 is the tail end. A cavity I11 is formed axially in the sealing sleeve body 1. The wire 6 is threaded through the cavity I11. Sealing ribs I12 and II13 are respectively arranged circumferentially along the inner wall of the port at both ends of the cavity I11. Sealing rib I12 is used to press against the wire 6 to seal the head end port of the cavity I11, and sealing rib II13 is used to press against the inlet port 76 of the connector 7 to seal the tail end port of the cavity I11. The wire 6 in this design is a rod-type or bar-type wire with a certain strength.

[0058] In this embodiment, cavity I11 includes a sealing cavity I14 at the head end, a sealing cavity II15 at the tail end, and a connecting cavity I16 in the middle section. In order to achieve a better sealing effect, sealing cavity I14 is provided with two or more sealing ribs I12 along the axial direction, and sealing cavity II15 is provided with two or more sealing ribs II13 along the axial direction. Cavity I11 enhances the sealing effect of sealing sleeve body 1 through multiple sealing.

[0059] In this design, to ensure the sealing effect of the sealing rib I12 and the outer surface of the conductor 6, a crimping shell I2 is provided at the head end of the sealing sleeve body 1. The head end of the sealing sleeve body 1 extends into the cavity II21 of the crimping shell I2. The crimping shell I2 applies crimping force to the head end of the sealing sleeve body 1 from the outer periphery in different directions, thereby squeezing the sealing rib I12 to deform and firmly attach it to the outer surface of the conductor 6, thus achieving a fixed connection between the head end of the sealing sleeve body 1 and the conductor 6. The crimping shell I2 forms a cavity II21 along the axial direction. A wire end cavity 211 is provided at the head end of the cavity II21, and a crimping cavity 212 is provided at the tail end of the cavity II21. The wire end cavity 211 and the crimping cavity 212 are connected through a connecting cavity II213. Both ends of cavity II21 are elliptical or nearly elliptical structures. One end of connecting cavity II213 is a large end and the other end is a small end. The wire end cavity 211 is connected to the small end, and the crimping cavity 212 is connected to the large end. The wire end cavity 211 is used to pass through the wire 6, and the crimping cavity 212 is used to fit and seal with the wire 6 and fix it in place. Thus, when the head end of the sealing sleeve body 1 extends into the crimping cavity 212 of the crimping shell I2, the head end of the sealing sleeve body 1 is axially stopped at the connecting cavity II213 due to the reduction in cross-section.

[0060] In this embodiment, in order to ensure the sealing effect between the sealing rib II13 and one end of the connector 7, a crimping shell II3 is also provided at the tail end of the sealing sleeve body 1. The crimping shell II3 forms a cavity III31 along the axial direction. The head end of the cavity III31 is connected to the tail end of the sealing sleeve body 1. The tail end of the cavity III31 is used to connect with the inlet port 76 of the connector 7. The tail end of the sealing sleeve body 1 extends into the cavity III31 of the crimping shell II3. The crimping shell II3 applies crimping force to the tail end of the sealing sleeve body 1 from the outer periphery to different directions, thereby squeezing the sealing rib II13 to deform and firmly attach it to the outer surface of the inlet port 76 of the connector 7. This enables the sealing sleeve body 1 and the connector 7 to be fixedly connected. Both ends of the cavity III31 adopt an elliptical or approximately elliptical structure. The shape of the inlet port of the connector housing 71 is adapted to the shape and size of the tail end of the cavity III31.

[0061] In a typical embodiment of this utility model, the crimp shell II3 and the inlet port 76 of the connector 7 can be connected by means of forced installation, bonding or snap-fit. However, in order to facilitate processing and disassembly, the crimp shell II3 and the connector 7 are connected by a snap-fit ​​method. The snap-fit ​​connection structure in this solution can be implemented as follows: the crimp shell II3 is provided with a snap hole 321, and the inlet port 76 of the connector shell 71 is provided with a snap block 72, which is connected to the snap hole 321.

[0062] To facilitate the connection between the locking block 72 and the locking hole 321, a locking plate 32 is provided on the two planar side walls opposite each other at the tail end of the crimping shell II3. The connecting end of the locking plate 32 is connected to the main body of the crimping shell II3. Slits 34 are formed on both sides of the locking plate 32, so that only one side of the locking plate 32 is connected to the connector shell 71, giving the locking plate 32 a certain degree of elasticity. The locking hole 321 is located on the locking plate 32. When the inlet port 76 of the connector shell 71 is inserted into the crimping shell II3, the locking block 72 at the inlet port 76 can push the locking plate 32 outward, causing it to deform to a certain extent, thus allowing the locking block 72 to smoothly enter the locking hole 321. To facilitate the locking, a beveled insertion surface is provided on one side of the head end of the locking block 72, making it easier to insert the connector shell 71 into the crimping shell II3. Preferably, in this design, locking blocks 72 are provided on both opposite sides of the inlet port 76, and locking holes 321 are provided on both opposite sides of the crimping housing II 3. The connection is made more secure through the locking mechanism on both sides. It should be noted that locking blocks can also be provided on the crimping housing II 3, and locking holes can be provided at the inlet port 76 of the connector housing 71. To ensure the sealing of the inlet port, in this embodiment, the locking holes can be blind holes.

[0063] In this embodiment, a stop plate 33 is provided inside cavity III 31. The stop plate 33 serves to stop the insertion of the inlet port 76 of connector housing 71. Simultaneously, by guiding and positioning the inlet port 76, it facilitates the smooth entry of the locking block 72 into the locking hole 321, thereby achieving a quick and precise snap-fit ​​connection. Furthermore, a reinforcing rib 35 is provided circumferentially on one side of the head end of the crimp shell II 3. The reinforcing rib 35 ensures the strength of the crimp shell II 3, preventing deformation under stress after it is forcibly fitted with the sealing sleeve body 1, thus ensuring the service life of the component. Another function of the stop plate 33 is that it is located at the inner end of the edge seam 34. This ensures the strength of the fixed connection end of the locking plate 32 between the edge seams 34, preventing deformation of the fixed connection end of the locking plate 32 after snap-fit, thus ensuring the snap-fit ​​fixation effect and effectively guaranteeing the service life of the component.

[0064] In this embodiment, the head end of the sealing sleeve body 1 and the crimping cavity 212 can be connected by a forced fit, adhesive fixation, or encapsulation process. The tail end of the sealing sleeve body 1 and one side of the head end of the cavity Ⅲ31 can also be connected by a forced fit, adhesive fixation, or encapsulation process. Taking the forced fit at both ends of the sealing sleeve body 1 as an example, the head end and tail end of the sealing sleeve body 1 can be further provided with protruding ribs Ⅰ17 and Ⅱ18 in the circumferential direction, so that the protruding ribs Ⅰ17 are forcibly fitted with the crimping shell Ⅰ2, and the protruding ribs Ⅱ18 are forcibly fitted with the crimping shell Ⅱ3.

[0065] In a typical embodiment of this utility model, the sealing sleeve body 1 can be made of flexible rubber material, so that it can adapt to the eccentricity of the wire 6 (bar or rod type wire) through its own deformation, while the crimping shell I2 and crimping shell II3 can be made of plastic material with certain structural strength, so as to ensure the crimping and fixing effect of the sealing sleeve body 1.

[0066] In one embodiment of this solution (without accompanying drawings), the sealing cavity I 14 and sealing cavity II 15 of the sealing sleeve body 1 can be lengthened, and multiple sealing ribs can be provided within the lengthened sealing cavity I 14 and sealing cavity II 15, which can also effectively ensure the sealing effect at both ends. In another embodiment (without accompanying drawings), the sealing sleeve body 1 can be made entirely of hard rubber, thereby enhancing the fixing effect at both ends of the sealing sleeve body 1. Both of these methods eliminate the need for the compression shell I 2 and compression shell II 3, thus simplifying the overall structure of the flexible seal.

[0067] Example 2

[0068] This embodiment also provides a wire connection sealing mechanism, including the flexible seal 10 of Embodiment 1, the wire 6, and the connector 7. The wire 6 is a rod-type or bar-type wire. The head end of the wire 6 passes through the flexible seal 10 and extends into the connector housing 71 through the inlet port 76 of the connector 7. The head end of the wire 6 is provided with a connection hole 61. A conductive connection seat 73 is provided inside the connector housing 71. A threaded hole 75 is provided on the conductive connection seat 73 along the axial direction. The bolt 4 is fixed by passing through the connection hole 61 and screwing into the threaded hole 75. A washer 41 is attached to the bolt 4 to reduce wear on the wire 6. A spring washer can also be connected in series on the bolt 4 to provide a pre-tightening function to prevent loosening. In this embodiment, in order to ensure the stop fit of the inlet port 76, a limiting platform 74 is provided circumferentially on the outer edge of the connector housing 71. The limiting platform 74 and the stop platform 33 achieve a stop fit, thereby limiting the axial insertion position of the inlet port 76.

[0069] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A flexible seal, characterized in that: The device includes a sealing sleeve body, the head end of which is used for fixed connection with a wire, and the tail end of which is used for fixed connection with the inlet port of a connector. The sealing sleeve body has an axial cavity I for the wire to pass through. A sealing rib I is formed at the head end of the cavity I and is arranged circumferentially around the port of the cavity I. The sealing rib I is used to be crimped onto the wire. A sealing rib II is formed at the tail end of the cavity I and is arranged circumferentially around the port of the cavity I. The sealing rib II is used to be crimped onto the inlet port of the connector.

2. The flexible seal according to claim 1, characterized in that: The sealing sleeve body has a crimping shell I at its head end, and the head end of the sealing sleeve body is located inside the crimping shell I for crimping the sealing rib I onto the wire. The tail end of the sealing sleeve body is provided with a crimping shell II, and the tail end of the sealing sleeve body is installed inside the crimping shell II for crimping the sealing rib II onto the inlet port of the connector.

3. The flexible seal according to claim 2, characterized in that: The crimping shell I has a cavity II formed along the axial direction. The cavity II includes a wire end cavity at the head end and a crimping cavity at the tail end. The head end of the sealing sleeve body extends into the crimping cavity and is fixedly connected to it. The crimping shell II has a cavity III formed along the axial direction. The head end of the cavity III is connected to the tail end of the sealing sleeve body, and the tail end of the cavity III is used to connect to the inlet port of the connector.

4. The flexible seal according to claim 2, characterized in that: The head end of the sealing sleeve body is fixedly connected to the pressing shell I by means of forced installation or encapsulation; the tail end of the sealing sleeve body is fixedly connected to the pressing shell II by means of forced installation or encapsulation.

5. The flexible seal according to claim 2, characterized in that: The crimp housing II is used to connect to the mating port of the connector via a snap-fit ​​method.

6. The flexible seal according to claim 2, characterized in that: A stop is formed on the inner wall of the crimp housing II. The stop is used to cooperate with the inlet port of the connector to limit the axial insertion position of the inlet port of the connector.

7. The flexible seal according to claim 1, characterized in that: Two or more sealing ribs I are arranged along the axial direction; and / or two or more sealing ribs II are arranged along the axial direction.

8. The flexible seal according to claim 1, characterized in that: The sealing sleeve body has an outwardly protruding rib I on its outer periphery for contacting the inner wall of cavity II, and the sealing sleeve body has an outwardly protruding rib II on its outer periphery for contacting the inner wall of cavity III.

9. The flexible seal according to any one of claims 1-8, characterized in that: The sealing sleeve body is made of rubber.

10. The flexible seal according to claim 2, characterized in that: The press-fit shells I and II are made of plastic.

11. A wire connection sealing mechanism, characterized in that: Includes the flexible seal as described in any one of claims 1-10.

12. The wire connection sealing mechanism according to claim 11, characterized in that: The connecting end of the wire passes through the flexible seal and extends into the connector through the inlet port to be electrically connected to it.

13. The wire connection sealing mechanism according to claim 12, characterized in that: The connector's inlet port is provided with a limiting stage, which cooperates with a stop stage.

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