A sealing structure for a Type-C connector socket

By employing a multi-layer sealing structure and spring compensation mechanism, the problem of poor sealing performance of Type-C connector plugs has been solved, achieving efficient sealing and improving the stability and service life of the equipment.

CN224947037UActive Publication Date: 2026-11-06DONGGUAN SHUOZHEN ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202522308184.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-11-06
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

The existing Type-C connectors rely solely on a single rubber ring for sealing. The connection gap is easily widened by vibrations during insertion and removal, resulting in poor sealing performance. This allows dust, liquids, and other substances to seep in, affecting the stability and lifespan of the equipment.

Method used

The system employs a multi-layer sealing structure, including a first sealing gasket and a second sealing gasket. The first sealing gasket is composed of multiple layers of materials (PTFE-modified composite material, modified polyetheretherketone, mica paper composite silicone rubber, and EPDM rubber), which, combined with a telescopic rod and a spring, form multiple sealing barriers to enhance sealing redundancy. The second sealing gasket is made of the same material, and the spring's rebound performance compensates for wear gaps.

Benefits of technology

It significantly improves the sealing effect, avoids metal contact contamination, extends service life, is resistant to high temperature and aging, has high sealing redundancy, and can effectively resist dust and liquid intrusion, ensuring stable operation of the connector.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224947037U_ABST
Patent Text Reader

Abstract

This utility model discloses a sealing structure for a Type-C connector plug, including a connector body and a housing. A plug is fixedly connected to the left side of the connector body, and a slot is formed on the right side of the housing. The plug is movably connected to the inner cavity of the slot. A first sealing gasket is fixedly connected to the right side of the housing, and a second sealing groove is formed on the right side of the first sealing gasket. A first sealing groove is formed on the left side of the connector body. The first sealing gasket on the right side of the housing can be embedded into the first sealing groove on the left side of the connector body, forming a first sealing barrier that directly prevents external dust and liquid from entering the connection gap between the plug and the slot, avoiding contamination of the metal contacts. Simultaneously, the telescopic rod and spring within the first sealing groove cooperate to push the movable plate and the second sealing gasket on the left side to tightly fit into the second sealing groove on the right side of the first sealing gasket, forming a second seal. Compared to traditional single seals, the sealing redundancy is significantly improved.
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Description

Technical Field

[0001] This utility model relates to the field of Type-C connector plug technology, specifically a sealing structure for a Type-C connector plug. Background Technology

[0002] As a core connection component of current electronic devices (such as smartphones, laptops, fast chargers, and industrial control terminals), Type-C connectors bear the dual functions of high-speed data transmission and high-power power supply. The sealing performance of its connector directly determines the stability and lifespan of the device. In daily scenarios, when charging a mobile phone, the connector is easily exposed to sweat from the palm and dust from the desktop. In industrial scenarios, the connector may face workshop oil stains and high-temperature environments. If the seal is not good, dust, liquids, or corrosive substances will seep into the connection gap between the connector body and the shell, causing oxidation and corrosion of the internal metal contacts, resulting in charging interruptions, data transmission delays, and even short circuits that damage the equipment. Therefore, a sealing structure is required. However, the current sealing structure of Type-C connectors relies on a single rubber ring to achieve a seal. The connection gap is easily widened by the vibration of insertion and removal, resulting in poor sealing performance. To address this, we propose a sealing structure for Type-C connectors. Utility Model Content

[0003] The purpose of this utility model is to provide a sealing structure for a Type-C connector plug, which has the advantage of good sealing effect and solves the problem that the current Type-C connector plug sealing structure relies on a single rubber ring to achieve sealing, and the connection gap is easily expanded due to insertion and removal vibration, resulting in poor sealing effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for a Type-C connector plug, comprising a connector body and a housing, wherein a plug is fixedly connected to the left side of the connector body, a slot is provided on the right side of the housing, the plug is movably connected to the inner cavity of the slot, a first sealing gasket is fixedly connected to the right side of the housing, a second sealing groove is provided on the right side of the first sealing gasket, a first sealing groove is provided on the left side of the connector body, the first sealing gasket is movably connected to the inner cavity of the first sealing groove, a telescopic rod is fixedly connected to the right side of the inner cavity of the first sealing groove, a spring is sleeved on the outer surface of the telescopic rod, a movable plate is fixedly connected to the left side of the telescopic rod, a second sealing gasket is fixedly connected to the left side of the movable plate, and the second sealing gasket is movably connected to the inner cavity of the second sealing groove.

[0005] Preferably, the first sealing gasket includes a first wear-resistant layer, a second wear-resistant layer, a high-temperature resistant layer, an anti-aging layer, and a substrate layer. The first wear-resistant layer is a polytetrafluoroethylene modified composite material, the second wear-resistant layer is a modified polyetheretherketone, the high-temperature resistant layer is a mica paper composite silicone rubber, and the anti-aging layer is EPDM rubber.

[0006] Preferably, the substrate layer is nitrile rubber, and the first and second sealing gaskets are made of the same material.

[0007] Preferably, the first wear-resistant layer is located outside the second wear-resistant layer, and the second wear-resistant layer is located outside the high-temperature resistant layer.

[0008] Preferably, the high-temperature resistant layer is located outside the anti-aging layer, and the anti-aging layer is located outside the substrate layer.

[0009] Preferably, the left side of the spring is fixedly connected to the right side of the movable plate, and the right side of the spring is fixedly connected to the right side of the inner cavity of the first sealing groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The first sealing gasket on the right side of the plug housing of this utility model can be embedded in the first sealing groove on the left side of the connector body to form the first sealing barrier, directly blocking external dust and liquid from entering the connection gap between the plug and the slot, and preventing the metal contacts from being contaminated; at the same time, the telescopic rod in the first sealing groove cooperates with the spring to push the movable plate and the second sealing gasket on the left side to fit tightly into the second sealing groove on the right side of the first sealing gasket, forming a second seal. Compared with the traditional single seal, the sealing redundancy is significantly improved. Even if the sealing gasket is slightly worn after long-term use, the rebound performance of the spring can still push the second sealing gasket to compensate for the gap and prevent the seal from loosening.

[0011] 2. The first and second wear-resistant layers of this utility model can withstand the friction caused by high-frequency insertion and removal, preventing rapid wear on the surface of the first sealing gasket. The middle high-temperature resistant layer can withstand the high temperature during connector operation, preventing the first sealing gasket from hardening and deforming due to high temperature. The inner anti-aging layer can resist oxidation and environmental erosion during long-term use, preventing the first sealing gasket from cracking. The substrate layer ensures that the first sealing gasket has good elasticity and fit, ensuring tight contact of the sealing surface. Moreover, the first and second sealing gaskets are made of the same material, which can withstand the test of the usage environment at the same time, further extending the service life of the overall sealing structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main sectional view of the present invention; Figure 3 This is an enlarged structural diagram of point A in this utility model; Figure 4 This is a schematic diagram of the first sealing gasket structure of this utility model.

[0013] In the diagram: 1. Connector body; 2. Shell; 3. Slot; 4. Plug; 5. First sealing gasket; 501. First wear-resistant layer; 502. Second wear-resistant layer; 503. High-temperature resistant layer; 504. Anti-aging layer; 505. Substrate layer; 6. Second sealing gasket; 7. First sealing groove; 8. Telescopic rod; 9. Spring; 10. Movable plate; 11. Second sealing groove. Detailed Implementation

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

[0015] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example 1:

[0016] Please see Figure 1-4 As shown, this utility model provides a sealing structure for a Type-C connector plug, including a connector body 1 and a housing 2. A plug 4 is fixedly connected to the left side of the connector body 1, and a slot 3 is opened on the right side of the housing 2. The plug 4 is movably connected to the inner cavity of the slot 3. A first sealing gasket 5 is fixedly connected to the right side of the housing 2, and a second sealing groove 11 is opened on the right side of the first sealing gasket 5. A first sealing groove 7 is opened on the left side of the connector body 1, and the first sealing gasket 5 is movably connected to the inner cavity of the first sealing groove 7. A telescopic rod 8 is fixedly connected to the right side of the inner cavity of the first sealing groove 7, and a spring 9 is sleeved on the outer surface of the telescopic rod 8. A movable plate 10 is fixedly connected to the left side of the telescopic rod 8, and a second sealing gasket 6 is fixedly connected to the left side of the movable plate 10. The second sealing gasket 6 is movably connected to the inner cavity of the second sealing groove 11. The left side of the spring 9 is fixedly connected to the right side of the movable plate 10, and the right side of the spring 9 is fixedly connected to the right side of the inner cavity of the first sealing groove 7.

[0017] In this technical solution, the first sealing gasket 5 on the right side of the plug shell 2 can be embedded in the first sealing groove 7 on the left side of the connector body 1 to form the first sealing barrier, directly blocking external dust and liquid from entering the connection gap between the plug 4 and the slot 3, thus preventing the metal contacts from being contaminated. At the same time, the telescopic rod 8 in the first sealing groove 7 cooperates with the spring 9 to push the movable plate 10 and the second sealing gasket 6 on the left side to fit tightly against the second sealing groove 11 on the right side of the first sealing gasket 5, forming a second seal. Compared with the traditional single seal, the sealing redundancy is significantly improved. Even if the sealing gasket is slightly worn after long-term use, the rebound performance of the spring 9 can still push the second sealing gasket 6 to compensate for the gap and prevent the seal from loosening. Example 2:

[0018] Based on Embodiment 1, this utility model is as follows: Figure 1-4 As shown, the first sealing gasket 5 includes a first wear-resistant layer 501, a second wear-resistant layer 502, a high-temperature resistant layer 503, an anti-aging layer 504, and a substrate layer 505. The first wear-resistant layer 501 is a polytetrafluoroethylene modified composite material, the second wear-resistant layer 502 is a modified polyetheretherketone, the high-temperature resistant layer 503 is a mica paper composite silicone rubber, the anti-aging layer 504 is EPDM rubber, and the substrate layer 505 is nitrile rubber. The first sealing gasket 5 and the second sealing gasket 6 are made of the same material. The first wear-resistant layer 501 is located outside the second wear-resistant layer 502, the second wear-resistant layer 502 is located outside the high-temperature resistant layer 503, the high-temperature resistant layer 503 is located outside the anti-aging layer 504, and the anti-aging layer 504 is located outside the substrate layer 505.

[0019] The first wear-resistant layer 501 and the second wear-resistant layer 502 of this technical solution can withstand the friction caused by high-frequency insertion and removal, avoiding rapid wear on the surface of the first sealing gasket 5. The middle high-temperature resistant layer 503 can withstand the high temperature during connector operation, preventing the first sealing gasket 5 from hardening and deforming due to high temperature. The inner anti-aging layer 504 can resist oxidation and environmental erosion during long-term use, preventing the first sealing gasket 5 from cracking. The substrate layer 505 ensures that the first sealing gasket 5 has good elasticity and fit, ensuring tight contact of the sealing surface. Moreover, the first sealing gasket 5 and the second sealing gasket 6 are made of the same material, which can withstand the test of the usage environment at the same time, further extending the service life of the overall sealing structure.

[0020] The working principle of this utility model is as follows: The first sealing gasket 5 on the right side of the insert shell 2 can be embedded into the first sealing groove 7 on the left side of the connector body 1, forming the first sealing barrier, directly blocking external dust and liquid from entering the connection gap between the plug 4 and the slot 3, and preventing the metal contacts from being contaminated; at the same time, the telescopic rod 8 in the first sealing groove 7 cooperates with the spring 9 to push the movable plate 10 and the second sealing gasket 6 on the left side to fit tightly against the second sealing groove 11 on the right side of the first sealing gasket 5, forming the second seal. Compared with the traditional single seal, the sealing redundancy is significantly improved. Even if the sealing gasket is slightly worn after long-term use, the rebound performance of the spring 9 can still push the second sealing gasket 6 to compensate for the gap. To prevent loosening of the seal, the first wear-resistant layer 501 and the second wear-resistant layer 502 can withstand the friction caused by high-frequency insertion and removal, preventing rapid wear on the surface of the first sealing gasket 5. The middle high-temperature resistant layer 503 can withstand the high temperature during connector operation, preventing the first sealing gasket 5 from hardening and deforming due to high temperature. The inner anti-aging layer 504 can resist oxidation and environmental erosion during long-term use, preventing the first sealing gasket 5 from cracking. The substrate layer 505 ensures that the first sealing gasket 5 has good elasticity and fit, ensuring tight contact of the sealing surface. Moreover, the first sealing gasket 5 and the second sealing gasket 6 are made of the same material, which can withstand the test of the usage environment at the same time, further extending the service life of the overall sealing structure.

[0021] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0022] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A sealing structure of a Type-c connector plug, comprising a plug body (1) and a plug shell (2), characterized in that: A plug (4) is fixedly connected to the left side of the connector body (1), and a slot (3) is provided on the right side of the socket (2). The plug (4) is movably connected to the inner cavity of the slot (3). A first sealing gasket (5) is fixedly connected to the right side of the socket (2). A second sealing groove (11) is provided on the right side of the first sealing gasket (5). A first sealing groove (7) is provided on the left side of the connector body (1). The first sealing gasket (5) is movably connected to the inner cavity of the first sealing groove (7). A telescopic rod (8) is fixedly connected to the right side of the inner cavity of the first sealing groove (7). A spring (9) is sleeved on the outer surface of the telescopic rod (8). A movable plate (10) is fixedly connected to the left side of the telescopic rod (8). A second sealing gasket (6) is fixedly connected to the left side of the movable plate (10). The second sealing gasket (6) is movably connected to the inner cavity of the second sealing groove (11).

2. The sealing structure of a Type-C connector socket according to claim 1, characterized in that: The first sealing gasket (5) includes a first wear-resistant layer (501), a second wear-resistant layer (502), a high-temperature resistant layer (503), an anti-aging layer (504), and a substrate layer (505). The first wear-resistant layer (501) is a polytetrafluoroethylene modified composite material, the second wear-resistant layer (502) is a modified polyetheretherketone, the high-temperature resistant layer (503) is a mica paper composite silicone rubber, and the anti-aging layer (504) is EPDM rubber.

3. The sealing structure of a Type-C connector socket according to claim 2, characterized in that: The substrate layer (505) is nitrile rubber, and the first sealing gasket (5) and the second sealing gasket (6) are made of the same material.

4. The sealing structure of a Type-C connector socket according to claim 2, characterized in that: The first wear-resistant layer (501) is located outside the second wear-resistant layer (502), and the second wear-resistant layer (502) is located outside the high-temperature resistant layer (503).

5. The sealing structure of a Type-C connector socket according to claim 2, characterized in that: The high-temperature resistant layer (503) is located outside the anti-aging layer (504), and the anti-aging layer (504) is located outside the substrate layer (505).

6. The sealing structure of a Type-C connector socket according to claim 1, characterized in that: The left side of the spring (9) is fixedly connected to the right side of the movable plate (10), and the right side of the spring (9) is fixedly connected to the right side of the inner cavity of the first sealing groove (7).