Connector assembly

Abstract

This application discloses a connector assembly including a first connector and a second connector. The first connector includes a first insert core; the second connector includes a second insert core with a insertion cavity. The first insert core can be inserted into the insertion cavity. A first sealing rib is provided on the outer peripheral surface of the first insert core or the inner peripheral surface of the insertion cavity. The first sealing rib surrounds the circumference of the first insert core, and the outer peripheral surface of the first insert core and the inner peripheral surface of the insertion cavity seal the first sealing rib. One of the outer peripheral surface of the first insert core and the inner peripheral surface of the insertion cavity is provided with an anti-retraction rib, and the other is provided with an anti-retraction groove. The anti-retraction rib and the first sealing rib are arranged at intervals along the insertion direction, and the anti-retraction rib is positioned in the anti-retraction groove. The connector assembly of this application has better sealing performance and a simpler structure.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and more particularly to a connector assembly. Background Technology

[0002] Connectors are widely used in various fields, including automobiles, communications, computers, consumer electronics, industry, and transportation. Applicable vehicle types include new energy vehicles, electric bicycles, electric motorcycles, and electric scooters. Connector plugs and sockets, as key components, bridge communication between circuits, allowing current to flow and enabling the circuit to perform its intended function. However, existing connectors have poor sealing performance and complex structures. Utility Model Content

[0003] The purpose of this application is to provide a connector assembly.

[0004] This application provides a connector assembly, which includes a first connector and a second connector. The first connector includes a first insert core; the second connector includes a second insert core with an insert cavity. The first insert core can be inserted into the insert cavity. A first sealing rib is provided on the outer peripheral surface of the first insert core or the inner peripheral surface of the insert cavity. The first sealing rib surrounds the circumference of the first insert core, and the outer peripheral surface of the first insert core and the inner peripheral surface of the insert cavity sealably clamp the first sealing rib. One of the outer peripheral surface of the first insert core and the inner peripheral surface of the insert cavity is provided with an anti-retraction rib, and the other is provided with an anti-retraction groove. The anti-retraction rib and the first sealing rib are arranged at intervals along the insertion direction, and the anti-retraction rib is positioned in the anti-retraction groove.

[0005] In this application, the outer peripheral surface of the first insertion core and the inner peripheral surface of the insertion cavity sealably clamp the first sealing rib. The first sealing rib can seal the gap between the outer peripheral surface of the first insertion core and the inner peripheral surface of the insertion cavity. The first sealing rib is disposed on the outer peripheral surface of the first insertion core or the inner peripheral surface of the insertion cavity. Compared with a solution that designs a separate sealing element, this embodiment has fewer components and a simpler structure, which is beneficial for improving assembly efficiency. Furthermore, by providing an anti-retraction rib and an anti-retraction groove, with the anti-retraction rib positioned within the anti-retraction groove, the insertion of the first insertion core and the second insertion core is made more stable, preventing the first insertion core and the second insertion core from loosening and ensuring the sealing effect of the connector assembly. Attached Figure Description

[0006] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0007] Figure 1 This is an exploded three-dimensional structural diagram of the connector assembly provided in the embodiments of this application.

[0008] Figure 2 yes Figure 1 A partial cross-sectional view of the connector assembly.

[0009] Figure 3 yes Figure 2 Enlarged view of point A of the connector assembly.

[0010] Figure 4 yes Figure 1 Another partial cross-sectional view of the connector assembly.

[0011] Figure 5 yes Figure 4 Enlarged view of section B of the connector assembly.

[0012] Figure 6 yes Figure 1 A partial cross-sectional view of another embodiment of the connector assembly.

[0013] Figure 7 yes Figure 6 Enlarged view of point C of the connector assembly. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] It should be noted that, in this document, the reference to "embodiment" or "implementation" means that a specific feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0016] The terms "first" and "second" appearing in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. It should be noted that, unless otherwise explicitly stated and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0017] Please refer to Figure 1 , Figure 2 and Figure 3 The connector assembly 100 provided in this application embodiment includes a first connector 10 and a second connector 20. The first connector 10 and the second connector 20 are plugged into each other to achieve electrical connection. Specifically, the first connector 10 includes a first insertion core 11. The second connector 20 includes a second insertion core 21, which has an insertion cavity 211. The first insertion core 11 can be inserted into the insertion cavity 211. A first sealing rib 111 is provided on the outer peripheral surface of the first insertion core 11 or the inner peripheral surface of the insertion cavity 211. The first sealing rib 111 surrounds the circumference of the first insertion core 11, and the outer peripheral surface of the first insertion core 11 and the inner peripheral surface of the insertion cavity 211 sealably clamp the first sealing rib 111. One of the outer peripheral surface of the first insertion core 11 and the inner peripheral surface of the insertion cavity 211 is provided with an anti-retraction rib 212, and the other is provided with an anti-retraction groove 112. The anti-retraction rib 212 and the first sealing rib 111 are arranged at intervals along the X-axis direction, and the anti-retraction rib 212 is positioned in the anti-retraction groove 112. It can be understood that the X-axis direction is the insertion direction of the first connector 10 and the second connector 20.

[0018] In this embodiment, the outer peripheral surface of the first insertion core 11 and the inner peripheral surface of the insertion cavity 211 sealably clamp the first sealing rib 111. The first sealing rib 111 can seal the gap between the outer peripheral surface of the first insertion core 11 and the inner peripheral surface of the insertion cavity 211. The first sealing rib 111 is disposed on the outer peripheral surface of the first insertion core 11 or the inner peripheral surface of the insertion cavity 211. Compared with the solution of designing a separate sealing element, this embodiment has fewer parts and a simpler structure, which is conducive to improving assembly efficiency. Furthermore, by providing the anti-retraction rib 212 and the anti-retraction groove 112, with the anti-retraction rib 212 positioned in the anti-retraction groove 112, the insertion of the first insertion core 11 and the second insertion core 21 is more stable, preventing the first insertion core 11 and the second insertion core 21 from loosening, thus ensuring the sealing effect of the connector assembly 100.

[0019] The connector assembly 100 of this embodiment can be widely used in various fields such as automobiles, communications, computers, consumer electronics, industry, and transportation. For example, it can be used as a key component in batteries of new energy vehicles, electric bicycles, electric motorcycles, electric scooters, and power tools. Its applications are very wide and are not limited to this example.

[0020] In this embodiment, the hardness of the first insert core 11 is greater than the hardness of the second insert core 21. For example, the first insert core 11 is made of nylon, and the second insert core 21 is made of thermoplastic polyurethane elastomer. In other embodiments, the first insert core 11 can also be made of a hard material such as polyacetal resin (POM), and the second insert core 21 can also be made of a soft material such as polyvinyl chloride (PVC). By setting the hardness of the first insert core 11 to be greater than that of the second insert core 21, the first insert core 11 and the second insert core 21 can better form a mating interference, improving the waterproof performance.

[0021] In some embodiments, the first connector 10 further includes a first terminal 12 and a first wire 13. The first terminal 12 is positioned on the first insertion core 11, and one end of the first terminal 12 away from the second insertion core 21 is electrically connected to the first wire 13. The second connector 20 further includes a second terminal 22 and a second wire 23. The second terminal 22 is positioned on the second insertion core 21, one end of the second terminal 22 is accommodated in the insertion cavity 211, and the other end of the second terminal 22 is electrically connected to the second wire 23. The first terminal 12 and the second terminal 22 are inserted to achieve an electrical connection between the first connector 10 and the second connector 20.

[0022] For example, in this embodiment, the first insert core 11 includes a first adhesive body 113 and a first overlay 114. The first adhesive body 113 has a first mounting hole 1131, which passes through the first adhesive body 113 along the X-axis. A first terminal 12 is positioned in the first mounting hole 1131. One end of the first wire 13 is electrically connected to the end of the first terminal 12 away from the second insert core 21. The first overlay 114 covers the end of the first adhesive body 113 near the first wire 13 and the end of the first wire 13 near the first adhesive body 113. In this embodiment, there are multiple first mounting holes 1131, which are spaced apart. There are multiple first terminals 12, some of which are power terminals and others are signal terminals. The multiple first terminals 12 are positioned one-to-one with the multiple first mounting holes 1131. In other embodiments, the number of first mounting holes 1131 and the number of first terminals 12 may both be one.

[0023] The second connector core 21 includes a second adhesive body 213 and a second overlay 214. The second adhesive body 213 has a second mounting hole 2131, which passes through the second adhesive body 213 along the X-axis. One end of the second terminal 22 is positioned in the second mounting hole 2131 of the second adhesive body 213, and the other end of the second terminal 22 is located outside the second mounting hole 2131. One end of the second wire 23 is electrically connected to the end of the second terminal 22 away from the first terminal 12. One end of the second overlay 214 wraps around the second adhesive body 213 and the end of the second wire 23 near the second adhesive body 213, and the other end of the second overlay 214 surrounds the second terminal 22 to form a connector cavity 211. The end of the second terminal 22 away from the second wire 23 is accommodated in the connector cavity 211. In this embodiment, there are multiple second mounting holes 2131, which are spaced apart. There are also multiple second terminals 22, some of which are power terminals and others are signal terminals. One end of each of the plurality of second terminals 22 is positioned in a corresponding manner in a plurality of second mounting holes 2131, and the other end of each of the plurality of second terminals 22 is accommodated in a plug-in cavity 211. In other embodiments, the number of second mounting holes 2131 and the number of second terminals 22 may both be one.

[0024] In this embodiment, when the first insert core 11 and the second insert core 21 are inserted, the end of the first adhesive body 113 away from the first coating 114 is inserted into the insertion cavity 211, and the first sealing rib 111 is disposed on the outer peripheral surface of the first adhesive body 113 or the inner peripheral surface of the insertion cavity 211. The outer peripheral surface of the first adhesive body 113 and the inner peripheral surface of the insertion cavity 211 seal the first sealing rib 111. One of the outer peripheral surface of the first adhesive body 113 and the inner peripheral surface of the insertion cavity 211 is provided with an anti-retraction rib 212, and the other is provided with an anti-retraction groove 112. The anti-retraction rib 212 is positioned in the anti-retraction groove 112, and the anti-retraction groove 112 can limit the anti-retraction rib 212 in the X-axis direction to prevent the first adhesive body 113 from loosening from the insertion cavity 211. In this embodiment, both the first adhesive body 113 and the insertion cavity 211 are asymmetrical structures. The first colloid 113 has a semi-circular arc surface on its sidewall, and the insertion cavity 211 also has a semi-circular arc surface on its sidewall. When the first colloid 113 is inserted into the insertion cavity 211, the semi-circular arc surface of the first colloid 113 needs to fit against the semi-circular arc surface of the insertion cavity 211; otherwise, the first colloid 113 cannot be inserted into the insertion cavity 211. By setting the first colloid 113 and the insertion cavity 211 as an asymmetrical structure, it is beneficial to prevent mistaken insertion.

[0025] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the first sealing rib 111 is disposed on the outer peripheral surface of the first insert core 11. In other embodiments, the first sealing rib 111 may also be disposed on the inner peripheral surface of the insert cavity 211. In this embodiment, the first sealing rib 111 is disposed on the outer peripheral surface of the first colloid 113 at the end away from the first coating 114. The first sealing rib 111 has a first inclined surface 1111 and a second inclined surface 1112. The first inclined surface 1111 and the second inclined surface 1112 are disposed opposite to each other along the X-axis direction. Both the first inclined surface 1111 and the second inclined surface 1112 are inclined relative to the X-axis direction, with an inclination angle of 30 degrees to 60 degrees, and preferably 45 degrees. The side of the first inclined surface 1111 away from the outer peripheral surface of the first insert core 11 and the side of the second inclined surface 1112 away from the outer peripheral surface of the first insert core 11 are close to each other. Specifically, the side of the first inclined surface 1111 that is away from the outer peripheral surface of the first colloid 113 is close to the side of the second inclined surface 1112 that is away from the outer peripheral surface of the first colloid 113.

[0026] In this embodiment, by setting a first inclined surface 1111, during the process of inserting the first colloid 113 into the insertion cavity 211, the first inclined surface 1111 slides against the inner circumferential surface of the insertion cavity 211. Due to the inclined setting of the first inclined surface 1111, the sliding of the first inclined surface 1111 is smoother, and thus the insertion of the first colloid 113 is smoother, facilitating the insertion of the first connector 10 and the second connector 20. By setting a second inclined surface 1112, when the second colloid 213 is pulled out from the insertion cavity 211, the second inclined surface 1112 slides against the inner circumferential surface of the insertion cavity 211. The inclined setting of the second inclined surface 1112 allows the second inclined surface 1112 to slide more smoothly, facilitating the removal of the first colloid 113.

[0027] In some embodiments, the anti-retraction rib 212 is disposed on the inner peripheral surface of the insertion cavity 211. Specifically, the anti-retraction rib 212 is disposed at one end of the inner peripheral surface of the insertion cavity 211 away from the bottom surface of the insertion cavity 211. Understandably, the anti-retraction rib 212 is located on the side of the insertion cavity 211 near the opening of the insertion cavity 211. The anti-retraction rib 212 has a first guide surface 2121 and a second guide surface 2122. The first guide surface 2121 and the second guide surface 2122 are disposed opposite to each other along the X-axis direction, and both the first guide surface 2121 and the second guide surface 2122 are inclined relative to the X-axis direction. The inclination angle is between 15 degrees and 30 degrees, with an optimal inclination angle of 15 degrees. The side of the first guide surface 2121 away from the inner peripheral surface of the insertion cavity 211 and the side of the second guide surface 2122 away from the inner peripheral surface of the insertion cavity 211 are close to each other.

[0028] The anti-retraction groove 112 is disposed on the outer peripheral surface of the first insert core 11. Specifically, the anti-retraction groove 112 is disposed on the outer peripheral surface of the first adhesive 113 near the end of the first coating 114. The anti-retraction groove 112 is adjacent to the first sealing rib 111, and the anti-retraction groove 112 is closer to the first coating 114 than the first sealing rib 111.

[0029] In this embodiment, when the first adhesive 113 is inserted into the insertion cavity 211, it slides against the first guide surface 2121. The first guide surface 2121 guides the first adhesive 113, making it easier to insert into the insertion cavity 211. After insertion, the second guide surface 2122 faces the second inclined surface 1112 of the first sealing rib 111. The second guide surface 2122 and the second inclined surface 1112 cooperate to prevent abnormal separation of the first connector 10 and the second connector 20, ensuring normal mating operation of the first connector 10 and the second connector 20 in vibration and impact environments. The second guide surface 2122 is inclined. When the second adhesive 213 is pulled out of the insertion cavity 211, the first sealing rib 111 slides against the second guide surface 2122. The second guide surface 2122 guides the first adhesive 113, facilitating its removal from the insertion cavity 211.

[0030] Optionally, both the anti-retraction rib 212 and the anti-retraction groove 112 are arranged around the circumference of the first insertion core 11, with the anti-retraction rib 212 sealingly abutting against the bottom surface of the anti-retraction groove 112. The anti-retraction rib 212 and the anti-retraction groove 112 both have a locking force around the circumference of the first insertion core 11 and the second insertion core 21, which helps improve the stability of the insertion between the first connector 10 and the second connector 20. Furthermore, the anti-retraction rib 212 sealingly abutting against the bottom surface of the anti-retraction groove 112 can also seal the gap between the outer circumferential surface of the first adhesive 113 and the inner circumferential surface of the insertion cavity 211, resulting in better sealing performance of the connector assembly 100. Meanwhile, there is friction between the anti-retraction rib 212 and the bottom surface of the anti-retraction groove 112, which prevents the first connector 10 and the second connector 20 from separating abnormally.

[0031] In some embodiments, the inner circumferential surface of the insertion cavity 211 is provided with a second sealing rib 215, which surrounds the circumference of the insertion cavity 211. The second sealing rib 215 and the anti-retraction rib 212 are arranged at intervals along the X-axis, with the second sealing rib 215 being closer to the bottom surface of the insertion cavity 211 than the anti-retraction rib 212. The second sealing rib 215 abuts against the first sealing rib 111 in a sealing manner. By setting the second sealing rib 215 to abut against the first sealing rib 111 in a sealing manner, the interference between the first sealing rib 111 and the second sealing rib 215 is greater, resulting in a better sealing effect.

[0032] Optionally, the second sealing rib 215 has a third inclined surface 2151 and a fourth inclined surface 2152. The third inclined surface 2151 and the fourth inclined surface 2152 are arranged opposite to each other along the X-axis direction. Both the third inclined surface 2151 and the fourth inclined surface 2152 are inclined relative to the X-axis direction, with an inclination angle of 30 degrees to 60 degrees, and preferably 45 degrees. The side of the third inclined surface 2151 away from the inner circumferential surface of the insertion cavity 211 and the side of the fourth inclined surface 2152 away from the inner circumferential surface of the insertion cavity 211 are close to each other. When the first colloid 113 is inserted into the insertion cavity 211, the first sealing rib 111 slides against the third inclined surface 2151 until it seals against the second sealing rib 215. Because the third inclined surface 2151 is inclined, it can guide the first sealing rib 111, making the sliding of the first sealing rib 111 smoother and facilitating the insertion of the first connector 10 and the second connector 20. Furthermore, because the third inclined surface 2151 and the fourth inclined surface 2152 are inclined, when the second sealing rib 215 and the first sealing rib 111 abut together in a sealing manner, the second sealing rib 215 is more easily deformed, resulting in greater interference between the first sealing rib 111 and the second sealing rib 215, and thus better sealing performance of the connector assembly 100.

[0033] In some embodiments, the dimension of the first sealing rib 111 along the X-axis is larger than the dimension of the second sealing rib 215 along the X-axis. In other embodiments, the dimension of the first sealing rib 111 along the X-axis may be less than or equal to the dimension of the second sealing rib 215 along the X-axis. In this embodiment, by setting the dimension of the first sealing rib 111 along the X-axis to be larger than the dimension of the second sealing rib 215 along the X-axis, the problem of the first sealing rib 111 failing to seal against the second sealing rib 215 due to insertion errors is avoided.

[0034] In some embodiments, the first adhesive 113 of the first insertion core 11 includes a mating portion 115 and a guiding portion 116 fixedly connected. The guiding portion 116 is located at the end of the first insertion core 11 facing the insertion cavity 211, and the mating portion 115 is located at the end of the first insertion core 11 facing away from the insertion cavity 211. A first mounting hole 1131 passes through the mating portion 115 and the guiding portion 116 along the X-axis. A first overlay 114 covers the end of the mating portion 115 away from the guiding portion 116. The guiding portion 116 faces the bottom surface of the insertion cavity 211. The guiding portion 116 is provided with a guiding surface 1161, which is inclined relative to the X-axis direction. For example, the guide surface 1161 is the entire outer peripheral surface of the guide portion 116. The guide surface 1161 is contracted relative to the mating portion 115, so that the projected area of ​​the guide portion 116 along the X-axis is smaller than the projected area of ​​the insertion cavity 211 along the X-axis. That is, the outer peripheral dimension of the guide portion 116 is smaller than the diameter of the insertion cavity 211. In this embodiment, when the first colloid 113 is inserted into the insertion cavity 211, the guide portion 116 is inserted into the insertion cavity 211 first. Since the outer peripheral dimension of the guide portion 116 is smaller than the diameter of the insertion cavity 211, the guide portion 116 is more easily inserted into the insertion cavity 211, which facilitates the insertion of the first connector 10 and the second connector 20.

[0035] Please refer to Figure 6 and Figure 7 In some embodiments, the second sealing rib 215 may be omitted. There are two first sealing ribs 111, spaced apart along the X-axis. In other embodiments, the number of first sealing ribs 111 may be one, three, or more. The cross-sectional shape of the first sealing rib 111 is rectangular; in other embodiments, the cross-sectional shape may be triangular or arc-shaped, etc. In this embodiment, when the first colloid 113 is inserted into the insertion cavity 211, the two first sealing ribs 111 sealably abut against the inner circumferential surface of the insertion cavity 211. By providing two first sealing ribs 111, two levels of waterproofing can be achieved, resulting in a better sealing effect for the connector assembly 100.

[0036] The embodiments of this application have been described in detail above. Specific examples have been used in this article to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application.

Claims

1. A connector assembly, characterized in that, include: A first connector, the first connector including a first insert core; as well as The second connector includes a second insert core with an insert cavity. The first insert core can be inserted into the insert cavity. A first sealing rib is provided on the outer peripheral surface of the first insert core or the inner peripheral surface of the insert cavity. The first sealing rib surrounds the circumference of the first insert core and the outer peripheral surface of the first insert core and the inner peripheral surface of the insert cavity sealably clamp the first sealing rib. One of the outer peripheral surface of the first insertion core and the inner peripheral surface of the insertion cavity is provided with an anti-retraction rib, and the other is provided with an anti-retraction groove. The anti-retraction rib and the first sealing rib are arranged at intervals along the insertion direction, and the anti-retraction rib is positioned in the anti-retraction groove.

2. The connector assembly according to claim 1, characterized in that, The first sealing rib is disposed on the outer peripheral surface of the first plug-in core. The first sealing rib has a first inclined surface and a second inclined surface. The first inclined surface and the second inclined surface are disposed opposite to each other along the plugging direction. Both the first inclined surface and the second inclined surface are inclined relative to the plugging direction. The side of the first inclined surface away from the first plug-in core and the side of the second inclined surface away from the first plug-in core are close to each other.

3. The connector assembly according to claim 1, characterized in that, Both the anti-retraction rib and the anti-retraction groove are arranged around the circumference of the first insert core, and the anti-retraction rib is sealed against the bottom surface of the anti-retraction groove.

4. The connector assembly according to claim 3, characterized in that, The anti-retraction rib is disposed on the inner peripheral surface of the insertion cavity, and the anti-retraction groove is disposed on the outer peripheral surface of the first insertion core; the anti-retraction rib has a first guide surface and a second guide surface, the first guide surface and the second guide surface are disposed opposite to each other along the insertion direction, and both the first guide surface and the second guide surface are inclined relative to the insertion direction; the side of the first guide surface away from the inner peripheral surface of the insertion cavity and the side of the second guide surface away from the inner peripheral surface of the insertion cavity are close to each other.

5. The connector assembly according to claim 1, characterized in that, The first sealing rib is disposed on the outer peripheral surface of the first plug core, and the inner peripheral surface of the plug cavity is provided with a second sealing rib, which surrounds the plug cavity in a circumferential manner; the second sealing rib and the first sealing rib abut against each other in a sealing manner.

6. The connector assembly according to claim 5, characterized in that, The second sealing rib has a third inclined surface and a fourth inclined surface. The third inclined surface and the fourth inclined surface are arranged opposite to each other along the insertion direction. Both the third inclined surface and the fourth inclined surface are inclined relative to the insertion direction. The side of the third inclined surface away from the inner circumferential surface of the insertion cavity and the side of the fourth inclined surface away from the inner circumferential surface of the insertion cavity are close to each other.

7. The connector assembly according to claim 5, characterized in that, The dimension of the first sealing rib along the insertion direction is greater than the dimension of the second sealing rib along the insertion direction.

8. The connector assembly according to claim 1, characterized in that, The first sealing rib is disposed on the outer peripheral surface of the first insertion core; there are two first sealing ribs, and the two first sealing ribs are arranged at intervals along the insertion direction.

9. The connector assembly according to any one of claims 1 to 8, characterized in that, The hardness of the first insert core is greater than that of the second insert core.

10. The connector assembly according to claim 9, characterized in that, The first insert core is made of nylon, and the second insert core is made of thermoplastic polyurethane elastomer.

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