A multifunctional waterproof connector

Abstract

The application discloses a multifunctional waterproof connector and relates to the technical field of connectors. A sealing ring is arranged at the shell cover where the tongue plate is located. When the connector is not connected with external equipment, the sealing ring is stably positioned at the sleeve opening of the shell cover close to the tongue plate under the action of the reset structure, the gap between the tongue plate and the shell cover is shielded, the entry of external water vapor and dust is effectively prevented, and thus the stability during the connection with the equipment later is improved. The color-changing silica gel layer arranged outward changes color and has a certain prompting effect when the connector accidentally meets water. The water-swelling rubber layer absorbs water and swells, so that the inner sealing soft ring abuts against the tongue plate and the outer sealing soft ring abuts against the inner surface of the shell cover, the connector is further sealed, further water seepage at the connector is effectively prevented, and the safety hidden danger caused by the direct plugging of the external equipment in this state can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to a multifunctional waterproof connector. BACKGROUND

[0002] The TYPE-C connector is a blind-mate electrical signal transmission interface, and the connection structure of such an interface does not need to distinguish between the front and back surfaces. The connector can be directly inserted into the connection socket of the internal device to realize the front and back surfaces being insertable. In this way, the TYPE-C connector and the TYPE-C interface can be used for electrical signal transmission between external devices and internal devices (such as mobile phones, computers, etc.).

[0003] The traditional assembly method of the TYPE-C connector is to first embed the terminal in the glue core, and then insert the glue core into the metal shell and fill in the glue. Since it is difficult for the operator to view the internal structure, it often happens that only part of the glue is attached to the glue core in the metal shell. The TYPE-C connector with such a structure has poor waterproof performance and is not suitable for application to electronic devices with waterproof performance requirements.

[0004] To improve the above problems, through retrieval, the Chinese patent with publication number CN216251324U discloses a board-mounted USB TYPE C connector with good waterproof effect. The upper surface and the lower surface of the shell are provided with glue pouring holes communicating with the second grooves. The size of the through cavity is greater than the size of the main body part. The UV glue is injected from the glue pouring holes into the first grooves, the second grooves, and the gap between the through cavity and the main body part to form a UV glue solidification layer. By setting the glue core formed by epoxy resin curing and the shell formed by epoxy resin curing, the gap between the glue core and the shell is filled with UV glue after assembly to fix the glue core. After the UV glue solidifies, the gap between the glue core and the shell can be sealed, thereby achieving the waterproof effect. Compared with the traditional connector structure in which the glue core is assembled in the metal shell, the waterproof performance can be further improved.

[0005] However, the above sealing method only seals the internal connection of the connector. In actual use, the interface is completely exposed when not connected to the external connection device, which is easy to enter water vapor and dust, thereby causing failure when connecting to the external device later. In addition, when connected for a long time in a high-temperature environment, such as charging, there is a safety hazard of burning or even explosion due to excessive temperature, so a multifunctional waterproof connector is needed. SUMMARY

[0006] The purpose of the present application is to provide a multifunctional waterproof connector to solve the problems raised in the background art.

[0007] To achieve the above object, the present application provides the following technical scheme: a multifunctional waterproof connector, comprising a shell and a main body, the main body is inserted into the inner side of the shell, the main body comprises a tongue plate part, and a sealing ring is arranged at the shell where the tongue plate part is located;

[0008] The sealing ring is movably sleeved on the outer side of the tongue plate part, the sealing ring is connected with the shell through a reset structure and a guide structure, the inner side of the shell is also connected with an overheat protection structure, and the overheat protection structure drives the sealing ring to slide towards the outer side of the shell when the ambient temperature reaches a preset threshold.

[0009] Preferably, the sealing ring comprises a fixed plate ring, an inner sealing soft ring and an outer sealing soft ring, and the inner sealing soft ring, the fixed plate ring and the outer sealing soft ring are fixedly connected in sequence from inside to outside, the inner sealing soft ring is in contact with the surface of the tongue plate part, the outer sealing soft ring is in contact with the inner surface of the shell, and the reset structure and the guide structure are connected with the fixed plate ring.

[0010] Preferably, the inner sealing soft ring and the outer sealing soft ring each comprise a color-changing silica gel layer and a water-swelling rubber layer, and the color-changing silica gel layer is arranged outward.

[0011] Preferably, the reset structure comprises a reset spring, and the reset spring is fixedly connected between the fixed plate ring and the inner wall of the shell.

[0012] Preferably, the guide structure comprises a guide slide rod, the guide slide rod is parallel to the translation direction of the fixed plate ring, one end of the guide slide rod is fixedly connected with the fixed plate ring, and the inner side of the shell is provided with a sliding hole matched with the guide slide rod.

[0013] Preferably, the overheat protection structure comprises a memory rod, the memory rod is located on the inner side of the sliding hole, one end of the memory rod is fixedly connected with the inner wall of the sliding hole, and the memory rod is made of a memory alloy which is elongated when reaching a high temperature threshold.

[0014] Preferably, the main body further comprises a terminal solder leg, and the terminal solder leg and the tongue plate part are fixed through a connecting part.

[0015] Preferably, a waterproof silica gel layer is bonded at the connection between the terminal solder leg and the connecting part, and a limiting boss is arranged at the end of the connecting part close to the terminal solder leg.

[0016] Preferably, a plurality of welding points are uniformly arranged on the outer surface of the shell, and a plurality of L-shaped fixing parts are integrally arranged at the side ends of the shell.

[0017] Preferably, a waterproof sealing frame is fixedly connected to the end of the shell close to the tongue plate part, and a stepped sealing groove is arranged on the inner side of the waterproof sealing frame.

[0018] In summary, the technical effects and advantages of the present application are:

[0019] 1、In the present application, by arranging a sealing ring at the shell cover where the tongue plate part is located, when the connector is not connected with external equipment, the sealing ring is stably positioned at the sleeve opening of the shell cover close to the tongue plate part under the action of the reset structure, the gap between the tongue plate part and the shell cover is shielded, effectively preventing the entry of external water vapor and dust, thereby facilitating the stability during the later connection with the equipment.

[0020] 2、In the present application, by fixing a guide slide rod parallel to the translation direction of the sealing ring at the inner end face of the sealing ring, and arranging a sliding hole matched with the guide slide rod at the inner side of the shell cover, the stable sliding of the sealing ring along the gap between the tongue plate part and the shell cover is ensured.

[0021] 3、In the present application, the sealing ring is arranged as a fixed plate ring, an inner sealing soft ring and an outer sealing soft ring, the inner sealing soft ring is in contact with the surface of the tongue plate part, and the outer sealing soft ring is in contact with the inner surface of the shell cover, the inner sealing soft ring and the outer sealing soft ring are made of high-temperature-resistant rubber material or silica gel material, and have good elastic properties, which can play a better sealing effect.

[0022] 4、In the present application, the inner sealing soft ring and the outer sealing soft ring each include a color-changing silica gel layer and a water-swelling rubber layer, and the color-changing silica gel layer is arranged outward, when the connector is accidentally exposed to water, the color-changing silica gel layer changes color after absorbing water, for example, from dry blue to red, which has a certain prompting effect, in addition, the water-swelling rubber layer swells after absorbing water, so that the inner sealing soft ring abuts against the tongue plate part and the outer sealing soft ring abuts against the inner surface of the shell cover, thereby further sealing the connector, effectively preventing further water penetration at the connector, and avoiding the safety hazards caused by directly plugging the external equipment in this state.

[0023] 5、In the present application, a overheat protection structure including a memory rod is further connected at the inner side of the shell cover, the memory rod is located at the inner side of the sliding hole, and one end of the memory rod is fixedly connected with the inner wall of the sliding hole, the memory rod is made of a memory alloy which elongates when reaching a high temperature threshold, when the connector is connected with external equipment in some accidental high temperature environment, for example, charging, the guide slide rod is driven to push the sealing ring towards the outer side of the shell cover when the ambient temperature reaches a preset threshold, thereby disconnecting the external connector from the connector, preventing damage or even explosion caused by continuous high temperature, and improving safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 is a schematic view of the three-dimensional structure in the embodiment;

[0026] Figure 2 is a schematic view of the structure in the embodiment in the state of removing the sealing ring;

[0027] Figure 3 is a schematic view of the main body in the embodiment;

[0028] Figure 4 is a schematic view of the memory rod in the normal temperature environment in the embodiment;

[0029] Figure 5 is a schematic view of the memory rod in the high temperature environment in which the heated temperature is higher than the preset threshold value in the embodiment;

[0030] Figure 6 is a schematic view of the structure at the reset structure in the embodiment;

[0031] Figure 7 is a schematic view of the planar structure of the sealing ring in the embodiment.

[0032] In the figure: 1, shell sleeve; 2, main body; 201, connecting part; 202, tongue plate part; 203, terminal solder leg; 3, sealing ring; 301, fixed plate ring; 302, inner sealing soft ring; 303, outer sealing soft ring; 4, reset spring; 5, guide sliding rod; 6, sliding hole; 7, memory rod; 8, waterproof sealing frame; 9, sealing groove; 10, limiting boss; 11, solder joint; 12, fixed part. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Embodiment: reference Figures 1-7The multifunctional waterproof connector shown in the figure adopts IPX8 waterproof standard, including a shell 1 and a main body 2, the main body 2 is inserted into the inner side of the shell 1, the main body 2 includes a tongue plate part 202, and also includes terminal pins 203, the number of the terminal pins 203 is 16, and the terminal pins 203 are fixed between the tongue plate part 202 through a connecting part 201.

[0035] The connecting part 201 is provided with a waterproof silica gel layer at the connecting position between the terminal pins 203 and the connecting part 201, so as to realize a sealing effect, and the end of the connecting part 201 close to the terminal pins 203 is provided with a limiting boss 10, so as to limit the insertion of the main body 2 and the shell 1.

[0036] The outer surface of the shell 1 is provided with a plurality of uniformly distributed welding points 11 for welding operation, such as laser welding, and the side end of the shell 1 is integrally provided with a plurality of L-shaped fixing parts 12 for fixing with an external shell.

[0037] In order to improve the sealing performance between the connector and the shell, the waterproof sealing frame 8 is fixedly connected to the end of the shell 1 close to the tongue plate part 202, the waterproof sealing frame 8 is made of organic silicone plastic, and the inner side of the waterproof sealing frame 8 is provided with a stepped sealing groove 9, so that the stepped sealing groove 9 can play a good sealing effect when connected with an external device.

[0038] The shell 1 where the tongue plate part 202 is located is provided with a sealing ring 3, the sealing ring 3 is movably sleeved to the outer side of the tongue plate part 202, the sealing ring 3 is connected with the shell 1 through a reset structure, when the connector is not connected with an external device, the sealing ring 3 is stably positioned at the sleeve opening of the shell 1 close to the tongue plate part 202 under the action of the reset structure, the gap between the tongue plate part 202 and the shell 1 is shielded, the entry of external water vapor and dust is effectively prevented, and the stability of the later connected device is improved.

[0039] The reset structure includes a reset spring 4, and the reset spring 4 is fixedly connected between the sealing ring 3 and the inner wall of the shell 1, in order to avoid that the connection stability is affected by the reset action of the reset spring 4 on the connecting head of the external device in the state of connecting the external device, an anti-skid strip is fixedly connected to the inner wall of the shell 1, so that the friction force between the connecting head of the external device and the anti-skid strip is greater than the elastic force of the reset spring 4.

[0040] In order to ensure that the sealing ring 3 stably slides along the gap between the tongue plate part 202 and the shell 1, a guide sliding rod 5 parallel to the translation direction of the sealing ring 3 is fixedly connected to the inner end surface of the sealing ring 3, and the inner side of the shell 1 is provided with a sliding hole 6 matched with the guide sliding rod 5.

[0041] Further, the sealing ring 3 comprises a fixed plate ring 301, an inner sealing soft ring 302 and an outer sealing soft ring 303, and the inner sealing soft ring 302, the fixed plate ring 301 and the outer sealing soft ring 303 are fixedly connected in sequence from inside to outside, the inner sealing soft ring 302 is in contact with the surface of the tongue plate part 202, the outer sealing soft ring 303 is in contact with the inner surface of the shell 1, the return spring 4 and the guide slide rod 5 are both connected with the fixed plate ring 301, the inner sealing soft ring 302 and the outer sealing soft ring 303 are both made of high and low temperature resistant rubber material or silica gel material, have good elastic properties, and can play a better sealing effect.

[0042] The inner sealing soft ring 302 and the outer sealing soft ring 303 both comprise a color-changing silica gel layer and a water-swelling rubber layer, and the color-changing silica gel layer is outwardly arranged, when the connector is accidentally contacted with water, the color-changing silica gel layer changes color after absorbing water, for example, from dry blue to red, has a certain prompting effect, in addition, the water-swelling rubber layer is used to swell after absorbing water, so that the inner sealing soft ring 302 abuts against the tongue plate part 202 and the outer sealing soft ring 303 abuts against the inner surface of the shell 1, thereby further sealing the connector, effectively preventing further water seepage of the connector, and at the same time, avoiding the safety hazard caused by directly plugging the external device in this state.

[0043] In some accidental high-temperature environment, when the connector is connected with the external device, for example, charging, there is a safety hazard of burning or even explosion due to too high temperature, in view of this safety hazard, the inner side of the shell 1 is further connected with an overheat protection structure, the overheat protection structure comprises a memory rod 7, the memory rod 7 is located at the inner side of the slide hole 6, and one end of the memory rod 7 is fixedly connected with the inner wall of the slide hole 6, the memory rod 7 is made of memory alloy which elongates when reaching a high temperature threshold, when the ambient temperature reaches a preset threshold, the guide slide rod 5 is driven to push the sealing ring 3 towards the outer side of the shell 1, thereby disconnecting the external connector from the connector, preventing damage or even explosion caused by continuous high temperature, and improving safety.

[0044] The working principle of the application is: when the connector is not connected with external equipment, the sealing ring 3 is stably positioned at the sleeve opening of the shell 1 near the tongue plate part 202 under the action of the reset structure, the gap between the tongue plate part 202 and the shell 1 is shielded, the entry of external water vapor and dust is effectively prevented, and the stability during the connection with the equipment later is improved; the guiding slide rod 5 parallel to the translation direction of the sealing ring 3 is fixedly connected to the inner end surface of the sealing ring 3, and the slide hole 6 matched with the guiding slide rod 5 is arranged on the inner side of the shell 1, so that the sealing ring 3 stably slides along the gap between the tongue plate part 202 and the shell 1; the inner sealing soft ring 302 is in contact with the surface of the tongue plate part 202, and the outer sealing soft ring 303 is in contact with the inner surface of the shell 1; the inner sealing soft ring 302 and the outer sealing soft ring 303 are made of high-temperature-resistant rubber material or silica gel material and have good elastic properties, and can play a better sealing effect.

[0045] When the connector accidentally encounters water, the color-changing silica gel layer changes color when absorbing water, for example, from dry blue to red, which has a certain prompting effect. In addition, the water-swelling rubber layer absorbs water and swells, so that the inner sealing soft ring 302 abuts against the tongue plate part 202 and the outer sealing soft ring 303 abuts against the inner surface of the shell 1, thereby further sealing the connector, effectively preventing further water penetration at the connector, and avoiding the safety hazards caused by directly plugging the external equipment in this state. When the connector is connected with external equipment in some accidental high-temperature environment, for example, charging, when the ambient temperature reaches the preset threshold, the guiding slide rod 5 is driven to push the sealing ring 3 towards the outside of the shell 1, thereby disconnecting the external connector from the connector, preventing damage or even explosion caused by continuous high temperature, and improving safety.

[0046] Finally, it should be noted that: the above only describes the preferred embodiments of the application and is not used to limit the application, although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A multifunctional waterproof connector, comprising a housing (1) and a main body (2), characterized in that, The main body (2) is inserted into the inner side of the shell (1). The main body (2) includes a tongue plate (202), and a sealing ring (3) is provided at the location of the tongue plate (202) on the shell (1). The sealing ring (3) is movably sleeved on the outer side of the tongue plate (202). A reset structure and a guide structure are connected between the sealing ring (3) and the shell (1). An overheat protection structure is also connected to the inner side of the shell (1). When the ambient temperature reaches a preset threshold, the overheat protection structure drives the sealing ring (3) to slide towards the outer side of the shell (1). The sealing ring (3) includes a fixed plate ring (301), an inner sealing soft ring (302), and an outer sealing soft ring (303). The inner sealing soft ring (302), the fixed plate ring (301), and the outer sealing soft ring (303) are fixedly connected from the inside to the outside. The inner sealing soft ring (302) is in contact with the surface of the tongue plate (202). The outer sealing soft ring (303) is in contact with the inner surface of the shell (1), and the reset structure and the guide structure are both connected to the fixed plate ring (301); the inner sealing soft ring (302) and the outer sealing soft ring (303) both include a color-changing silicone layer and a water-swellable rubber layer, and the color-changing silicone layer is set outward; the guide structure includes a guide slide rod (5), the guide slide rod (5) is parallel to the translation direction of the fixed plate ring (301), and one end of the guide slide rod (5) is fixedly connected to the fixed plate ring (301), and the inner side of the shell (1) is provided with a sliding hole (6) that is adapted to the guide slide rod (5); the overheat protection structure includes a memory rod (7), the memory rod (7) is located inside the sliding hole (6), and one end of the memory rod (7) is fixedly connected to the inner wall of the sliding hole (6), and the memory rod (7) is made of a memory alloy that elongates when it reaches the high temperature threshold.

2. The multifunctional waterproof connector according to claim 1, characterized in that: The reset structure includes a reset spring (4), and the reset spring (4) is fixedly connected between the fixed plate ring (301) and the inner wall of the shell (1).

3. The multifunctional waterproof connector according to claim 1, characterized in that: The main body (2) also includes a terminal solder foot (203), which is fixed to the tongue plate portion (202) by a connecting portion (201).

4. A multifunctional waterproof connector according to claim 3, characterized in that: A waterproof silicone layer is bonded to the connection between the terminal solder foot (203) and the connecting part (201), and a limiting protrusion (10) is provided at the end of the connecting part (201) near the terminal solder foot (203).

5. A multifunctional waterproof connector according to claim 1, characterized in that: The outer surface of the housing (1) is provided with a plurality of evenly distributed solder points (11), and the side end of the housing (1) is provided with a plurality of L-shaped fixing parts (12).

6. A multifunctional waterproof connector according to claim 1, characterized in that: A waterproof sealing frame (8) is fixedly connected to the end of the shell (1) near the tongue plate (202), and a stepped sealing groove (9) is provided on the inner side of the waterproof sealing frame (8).

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