Waterproof connector assembly and waterproof connector

Abstract

The waterproof connector assembly comprises a first main body, the front end of the first main body is provided with a first plugging end, the front end surface of the first plugging end is provided with a cavity, the cavity is internally provided with at least one first wiring terminal, and the first wiring terminal is provided with a second wiring terminal. The flexible wire sealing device is characterized in that a flexible wire sealing body capable of being punctured is further arranged at the front end of the first inserting end, the flexible wire sealing body is limited to the front end of the first inserting end through an end cover, and the flexible wire sealing body seals the front end of the cavity; the middle part of the end cover is provided with a through groove with two through ends, and the through groove is arranged to directly face the first wiring terminal. According to the utility model, the sealing waterproof effect is ensured, the assembly convenience is improved, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a waterproof connector component and a waterproof connector. Background Art

[0002] A connector generally refers to an electrical connector, which is a device that connects two active devices to transmit current or signals. The male and female ends can transmit information or current after contact.

[0003] Among them, in some occasions, the connector needs to have waterproof performance. Conventional connectors are waterproof at the connection between the male end and the female end. This type of connector has a certain waterproof effect, but the waterproof effect is not particularly good. Therefore, in order to achieve a better waterproof effect, a waterproof part will be set at the connection of each terminal. In this way, there are two assembly methods during assembly. The first is to pre-install the waterproof part at the corresponding cable end, and then connect the terminal and the cable, and finally install the terminal, the waterproof part and the cable into the connector. In this method, the process is complicated and the assembly is difficult, especially for multi-core connectors, the operation is more difficult. The second method: After the terminal and the cable are connected, a waterproof part is set at the connection between each terminal and the cable, and pressed into the connector. In this method, the size of the connector will be larger. For a multi-core connector, each terminal needs to be operated separately. Therefore, how to solve the above technical problems is the direction that technicians in this field need to work hard on. Summary of the invention

[0004] The utility model aims to provide a waterproof connector assembly and a waterproof connector. By using the structure, the difficulty of assembly can be effectively reduced and the waterproof effect can be ensured.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a waterproof connector assembly, comprising a first body, a first plug end is provided at the front end of the first body, a chamber is provided on the front end surface of the first plug end, at least one first terminal is provided in the chamber, a flexible sealing body capable of being pierced is also provided at the front end of the first plug end, the flexible sealing body is limited at the front end of the first plug end through an end cover, and the flexible sealing body seals the front end of the chamber;

[0006] A through slot with two ends passing through is provided in the middle of the end cover, and the through slot is arranged opposite to the first connecting terminal.

[0007] In the above technical solution, the rear end surface of the chamber is provided with mounting holes matching the number of the first wiring terminals, and each of the first wiring terminals is installed in the mounting hole.

[0008] In the above technical solution, at least two buckles are provided on the outer surface of the front end of the first plug-in end, and a slot matching the buckle is provided on the inner surface of the end cover, and the end cover is connected to the front end of the first plug-in end through the buckle and the slot.

[0009] In the above technical solution, the rear end of the end cover is provided with an extension portion extending backward, each of the extension portions is arranged opposite to a buckle, each of the clamping slots is arranged on the inner surface of one of the extension portions, and each of the clamping slots is clamped and connected to a buckle slot;

[0010] And / or, the outer end of the slot is communicated with the outer surface of the extension portion.

[0011] In the above technical solution, the rear end of the flexible sealing wire body is inserted into the chamber, and the outer surface of the flexible sealing wire body inserted into the chamber is in close contact with the inner wall of the chamber.

[0012] In the above technical solution, a plurality of sealing rings are provided on the outer surface of the flexible sealing wire body, and the plurality of sealing rings are arranged at intervals from right rear to front, and the outer surface of each sealing ring is tightly matched with the inner wall of the chamber.

[0013] In the above technical solution, at least one positioning hole is provided on the rear end surface of the chamber, and a positioning convex portion matching the positioning hole is provided on the rear end surface of the flexible sealing body, and each positioning convex portion is inserted into one of the positioning holes.

[0014] In the above technical solution, the front end of the flexible sealing wire body is provided with a protrusion extending forward, the protrusion matches the through groove, and the protrusion is inserted into the through groove;

[0015] And / or, the outer surface of the protrusion matches the inner wall of the through groove.

[0016] In the above technical solution, a plurality of concave cavities are provided on the rear end surface of the flexible wire sealing body, each of the concave cavities is arranged opposite to one of the first wiring terminals, and the front end of the concave cavities is arranged in the protruding portion;

[0017] And / or, a plurality of first sealing rings are provided on the inner wall of each of the concave cavities from back to front at intervals;

[0018] And / or, the front end surface of the protrusion is provided with alignment holes corresponding one to one with the concave cavity, and the alignment holes are not connected with the concave cavity.

[0019] The utility model also provides a waterproof connector, comprising a second body and the above-mentioned waterproof connector assembly, wherein the second body is detachably connected to the first plug-in end of the first body;

[0020] The second main body is provided with a plug-in terminal that is plugged with the first wiring terminal, each of the plug-in terminals corresponds to one of the first wiring terminals one by one, the plug-in terminal passes through the flexible sealing body and is plugged and connected to the plug-in terminal, and the front end of each of the plug-in terminals is connected to a circuit;

[0021] The flexible sealing body is tightly wrapped around the outside of the line.

[0022] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0023] 1. In the utility model, a flexible sealing body that can be pierced is directly arranged at the first plug-in end at the front end of the first wiring terminal, and the chamber is sealed by the flexible sealing body. In this structure, when the plug-in terminal and the first wiring terminal are plugged in, the flexible sealing body is directly pierced through the plug-in terminal and then plugged in with the first wiring terminal, and the pierced flexible sealing body is tightly wrapped around the outside of the circuit at the front end of the plug-in terminal, thereby achieving sealing. Compared with the previous structure in which a waterproof part is separately arranged on the outside of each plug-in terminal, only one flexible sealing body and the first main body are required for assembly, which can effectively improve the assembly efficiency, reduce the assembly difficulty, and at the same time ensure the waterproof effect;

[0024] 2. In the utility model, the flexible wire sealing body is directly limited at the front end of the first plug-in end through the end cover, and the flexible wire sealing body can be quickly assembled after the first wiring terminal is assembled, which improves the assembly efficiency and convenience and reduces the assembly difficulty;

[0025] 3. In the present invention, whether it is a single-core or multi-core structure, a flexible sealing body is used, which not only reduces the cost, but also makes the size of the connector smaller, and at the same time, the assembly efficiency is higher and the assembly difficulty is lower;

[0026] 4. In the utility model, the flexible sealing wire body is in sealing contact with the chamber, which effectively ensures the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a waterproof connector assembly in Embodiment 1 of the present utility model;

[0028] Figure 2 yes Figure 1 Exploded view in ;

[0029] Figure 3 It is a structural schematic diagram of the first main body in the first embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the end cover in the first embodiment of the utility model;

[0031] Figure 5 This is a schematic structural diagram of the end cover in another perspective of the first embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of the flexible sealing body in the first embodiment of the utility model;

[0033] Figure 7 This is a structural schematic diagram of the flexible sealing body in the first embodiment of the utility model from another perspective;

[0034] Figure 8 It is a schematic cross-sectional structural diagram of the flexible sealing body in the first embodiment of the utility model;

[0035] Fig. 9 It is a structural schematic diagram of the waterproof connector in the first embodiment of the utility model (the second body is not shown);

[0036] Fig.10 yes Fig. 9 Schematic diagram of the cross-sectional structure.

[0037] Among them: 1. first main body; 2. first plug-in end; 3. chamber; 4. first wiring terminal; 5. flexible wire sealing body; 6. end cover; 7. through groove; 8. plug-in terminal; 9. circuit; 10. installation hole; 11. buckle; 12. slot; 13. extension part; 14. inclined surface; 15. guide inclined surface; 16. sealing ring; 17. positioning hole; 18. positioning convex part; 19. raised part; 20. concave cavity; 21. alignment hole; 22. first sealing ring. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0039] Example 1: See Figures 1 to 10 As shown, a waterproof connector assembly comprises a first body 1, a first plug end 2 is provided at the front end of the first body 1, a chamber 3 is provided on the front end surface of the first plug end 2, at least one first wiring terminal 4 is provided in the chamber 3, a flexible sealing body 5 capable of being pierced is also provided at the front end of the first plug end 2, the flexible sealing body 5 is limited at the front end of the first plug end 4 through an end cover 6, and the flexible sealing body 5 seals the front end of the chamber 3;

[0040] A through slot 7 with two ends passing through is provided in the middle of the end cover 6 , and the through slot 7 is arranged opposite to the first wiring terminal 4 .

[0041] See also Fig. 9 , 10As shown, the utility model also provides a waterproof connector, including a second body (the second body is not shown in the figure), and also includes the above-mentioned waterproof connector assembly, the second body is detachably connected to the first plug end of the first body;

[0042] The second main body is provided with a plug-in terminal 8 that is plugged with the first wiring terminal 4, each of the plug-in terminals 8 corresponds to one of the first wiring terminals 4, and the plug-in terminal 8 passes through the flexible sealing body 5 and is plugged and connected to the plug-in terminal 8, and the front end of each of the plug-in terminals is connected to a circuit 9;

[0043] The flexible wire sealing body 5 is tightly wrapped on the outer surface of the plug-in terminal 8 , or the flexible wire sealing body 5 is tightly wrapped on the outside of the circuit 9 .

[0044] In the utility model, the first body can be a male end or a female end. When the first body is a male end, the second body is a female end. When the first body is a female end, the second body is a male end. In this embodiment, taking the first body as a male end as an example, the second body is a female end, and the first terminal has a jack inside, and the plug-in terminal is plugged with the jack of the first terminal, thereby realizing the electrical connection between the male end and the female end. When the male end and the female end are connected, the second body and the first body are plugged in. When plugged in, the end of the plug-in terminal pierces the flexible sealing body and enters the chamber to plug and match with the first plug-in terminal. In this process, since a flexible sealing body is used, after the plug-in terminal penetrates the flexible sealing body, the circuit will also be inserted into the flexible sealing body, and the flexible sealing body will be tightly wrapped on the outside of the circuit, thereby sealing the outside of the circuit to prevent it from leaking, and preventing water from entering the connection between the circuit and the flexible sealing body and the connection between the plug-in terminal and the first terminal. At the same time, since the flexible sealing body seals the chamber, the flexible sealing body will also seal the first terminal, so that the wet flexible sealing body will seal the connection between the plug terminal and the first terminal to prevent water leakage. Even if water leakage occurs at the connection between the male end and the female end, it can be sealed by the flexible sealing body to prevent water leakage. In addition, since there is at least one first terminal, the first terminal can be one or more, that is, the connector can be a single-core connector or a multi-core connector. Regardless of whether it is a single-core connector or a multi-core connector, one flexible sealing body can be used, and assembly is convenient and quick.

[0045] When assembling the connector, after pre-connecting the first terminal and the first body, the flexible wire sealing body is installed at the front end of the first plug-in end, and then the end cover is installed. The end cover is limited at the front end of the first terminal, so that the flexible limiting member is limited at the front end of the first plug-in end to seal the chamber. When the second body is connected to the first body, when the plug-in terminal needs to be plugged into the first terminal, since the end cover has a through groove, the through groove is opposite to the first terminal, and the plug-in terminal passes through the through groove to penetrate the flexible wire sealing body and is inserted into the chamber to be plugged into the first terminal.

[0046] Alternatively, the flexible sealing body and the end cover are pre-installed on the second body, and then when the second body is connected to the first body, after the plug-in terminal and the first plug-in end are plugged in, the flexible sealing body is inserted into the chamber, and the end cover is connected to the first plug-in end to achieve sealing of the flexible sealing body and the line.

[0047] Among them, the flexible sealing body is made of rubber or silicone rubber, preferably silicone rubber, which has good sealing effect and good elastic deformation ability, so that after the plug-in terminal penetrates the flexible sealing body, when the line is inserted into the flexible sealing body, the flexible sealing body can tightly wrap around the outside of the line and seal the connection between the line and the flexible sealing body.

[0048] See also Figure 3 As shown, the rear end surface of the chamber 3 is provided with mounting holes 10 whose number matches the first wiring terminals 4 , and each of the first wiring terminals 4 is installed in the mounting hole 10 .

[0049] The mounting hole is used for mounting the first wiring terminal, so that the first wiring terminal is inserted into the mounting hole from the rear end of the first body, thereby realizing rapid assembly of the first wiring terminal.

[0050] See also Figures 1 to 5 As shown, at least two buckles 11 are provided on the outer surface of the front end of the first plug-in end 4, and a slot 12 matching the buckle 11 is provided on the inner surface of the end cover 6. The end cover 6 is connected to the front end of the first plug-in end 4 through the buckle 11 and the slot 12.

[0051] In this embodiment, a buckle is provided on the top and bottom of the outer surface of the front end of the first plug-in end, respectively. The two buckles are symmetrically arranged on the outer surface of the first plug-in end. The end cover is engaged through the slot and the buckle, thereby realizing quick connection between the end cover and the first plug-in end.

[0052] See also Figure 4 , 5As shown, the rear end of the end cover 6 is provided with an extension portion 13 extending backward, each of the extension portions 13 is arranged opposite to a buckle 11, each of the clamping grooves 12 is arranged on the inner surface of one of the extension portions 13, and each of the clamping grooves 11 is clamped and connected with one of the clamping grooves 12;

[0053] The outer end of the slot 12 is communicated with the outer surface of the extending portion 13 .

[0054] Among them, in this embodiment, the top outer surface and the bottom outer surface of the front end of the first plug-in end are planes, each buckle is located on the plane, and the inner end surface of the extension part is against the corresponding plane, and the plane also plays an anti-mistake role.

[0055] Among them, the front end surface of the buckle is a slope 14 that tilts inward from the back to the front. When the end cover and the first plug-in end are connected, the end cover moves backward, the extension part faces the buckle, and the inner side surface of the rear end of the extension part contacts the slope. The extension part is squeezed by the slope of the buckle, so that the extension part is deformed outward. When the buckle passes through the extension part and faces the slot, the buckle enters the slot to achieve a quick connection between the end cover and the first plug-in end, and the buckle is used to limit the axial movement of the end cover from the first plug-in end. In addition, since the buckle installation position is a plane, it also plays a circumferential limiting role to prevent the end cover from rotating relative to the first plug-in end. At the same time, in order to facilitate the connection between the end cover and the buckle, the inner surface of the rear end of the extension part is a guide slope 15, which is arranged parallel to the slope of the buckle to facilitate the connection between the end cover and the first plug-in end.

[0056] See also Figure 1 , 3 As shown in Figures 10, the rear end of the flexible sealing body 5 is inserted into the chamber 3, and the outer surface of the flexible sealing body 5 inserted into the chamber 3 is in close contact with the inner wall of the chamber 3. In this way, the chamber can be further sealed, so that external water cannot enter the chamber and the first terminal from the contact point between the flexible sealing member and the chamber, effectively ensuring the sealing effect.

[0057] See also Figure 6 , 7 As shown, a plurality of sealing rings 16 are provided on the outer surface of the flexible sealing body 5 , and the plurality of sealing rings 16 are arranged at intervals from right rear to front, and the outer surface of each sealing ring 16 is tightly matched with the inner wall of the chamber 3 .

[0058] In this embodiment, multiple sealing rings are provided to achieve multiple sealing. Even if the sealing between the frontmost sealing ring and the chamber is not tight, the rear sealing rings can still ensure the sealing and waterproof effect.

[0059] See also Figure 3 , 6As shown in , 7 , at least one positioning hole 17 is provided on the rear end surface of the chamber 3 , and a positioning protrusion 18 matching the positioning hole 17 is provided on the rear end surface of the flexible sealing body 5 , and each positioning protrusion 18 is inserted into one of the positioning holes 17 .

[0060] By setting the positioning holes and the positioning protrusions, the flexible sealing body and the chamber are positioned when they are assembled to ensure the assembly quality of the flexible sealing body and the chamber, and also play a role of alignment to prevent reverse installation and ensure assembly quality.

[0061] See also Figure 6 , 7 As shown, the front end of the flexible sealing body 5 is provided with a protrusion 19 extending forward, the protrusion 19 matches the through slot 7, and the protrusion 19 is inserted into the through slot 7;

[0062] The outer surface of the protrusion 19 matches the inner wall of the through groove 7 .

[0063] In this embodiment, the protrusion is provided so that the protrusion can be directly inserted into the through slot, so that the end cover can also clamp the flexible wire sealing body, preventing the flexible wire sealing body from moving forward and leaving the chamber, and also preventing the flexible wire sealing body from rotating relative to the chamber. In addition, the protrusion is in the through slot, and when the plug-in terminal needs to pierce the flexible wire sealing body, the flexible wire sealing body is directly pierced from the protrusion.

[0064] In this embodiment, there are three rows of first plug-in terminals, including an upper row of first plug-in terminals, a middle row of first plug-in terminals, and a lower row of first plug-in terminals. Each row has a plurality of first plug-in terminals, and there are two groups of protrusions. The upper row of first plug-in terminals faces a protrusion above, and the middle row of first plug-in terminals and the lower row of first plug-in terminals face a protrusion below. In this way, there are two through slots, and each through slot faces a protrusion. Of course, only one protrusion can be set, and the three rows of first plug-in terminals face this one protrusion. The number of protrusions is set according to the actual arrangement of the first plug-in terminals.

[0065] See also Figure 7 , 8 As shown in FIG. 10 , a plurality of concave cavities 20 are provided on the rear end surface of the flexible sealing body 5 , each of the concave cavities 20 is arranged opposite to one of the first wiring terminals 4 , and the front end of the concave cavity 20 is arranged in the protruding portion 19 ;

[0066] The front end surface of the protrusion 19 is provided with alignment holes 21 corresponding to the concave cavities 20 one by one, the alignment holes 21 are not connected to the concave cavities 20 , and each alignment hole 21 is arranged opposite to one of the first connecting terminals 4 .

[0067] The alignment hole is set so that when the plug-in terminal needs to be plugged into the first plug-in end, the plug-in terminal only needs to penetrate the flexible wire sealing body corresponding to the alignment hole, and then face the first plug-in end to achieve the plug-in cooperation between the plug-in terminal and the first plug-in end. Furthermore, in order to ensure that when the plug-in terminal penetrates the flexible seam sealing body, the plug-in terminal is inserted off-center and cannot be normally plugged into the first terminal, therefore, through the setting of the alignment hole, when the plug-in terminal penetrates the flexible wire sealing body from the alignment hole, it will be inserted into the concave cavity, and the plug-in terminal will be guided by the concave cavity to ensure that the plug-in terminal is accurately and stably plugged into the corresponding first terminal, and the plug-in accuracy and stability are ensured. At the same time, the setting of the concave cavity and the alignment hole makes the thickness of the flexible wire sealing body between the concave cavity and the alignment hole relatively thin, which is convenient for the plug-in terminal to penetrate the flexible wire sealing body. More preferably, the diameter of the cavity is smaller than the outer diameter of the plug-in terminal and the circuit, so that when the plug-in terminal passes through the cavity and is plugged into the first terminal, the elastic deformation force of the cavity will be squeezed on the outer surface of the circuit, completely covering the circuit to ensure a sealed and waterproof effect.

[0068] See also Figure 7 , 8 As shown, a plurality of first sealing rings 22 are provided on the inner wall of each of the concave cavities 20 from back to front. The first sealing rings will tightly cover the outer surface of the line, so that the connection between the line and the flexible sealing body can be sealed through the plurality of first sealing rings to prevent water leakage at the connection and improve the sealing effect.

[0069] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0070] In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral one; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, for example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc., the two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of the two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A waterproof connector assembly, comprising a first body, a first plug end is provided at the front end of the first body, a chamber is provided on the front end surface of the first plug end, at least one first terminal is provided in the chamber, characterized in that: The front end of the first plug end is also provided with a flexible sealing body that can be pierced, and the flexible sealing body is limited to the front end of the first plug end through the end cover, and the flexible sealing body seals the front end of the chamber; A through slot with two ends passing through is provided in the middle of the end cover, and the through slot is arranged opposite to the first connecting terminal.

2. The waterproof connector assembly according to claim 1, characterized in that: The rear end surface of the chamber is provided with mounting holes matching the number of the first wiring terminals, and each of the first wiring terminals is installed in the mounting hole.

3. The waterproof connector assembly according to claim 1, characterized in that: At least two buckles are provided on the outer surface of the front end of the first plug-in end, and a slot matching the buckles is provided on the inner surface of the end cover. The end cover is connected to the front end of the first plug-in end through the buckles and the slots.

4. The waterproof connector assembly according to claim 3, characterized in that: The rear end of the end cover is provided with an extension portion extending backward, each of the extension portions is arranged opposite to a buckle, each of the clamping slots is arranged on the inner surface of one of the extension portions, and each of the clamping slots is clamped and connected to a buckle slot; And / or, the outer end of the slot is communicated with the outer surface of the extension portion.

5. The waterproof connector assembly according to claim 1, characterized in that: The rear end of the flexible sealing wire body is inserted in the chamber, and the outer surface of the flexible sealing wire body inserted in the chamber is in close contact with the inner wall of the chamber.

6. The waterproof connector assembly according to claim 5, characterized in that: A plurality of sealing rings are arranged on the outer surface of the flexible sealing wire body, and the plurality of sealing rings are arranged at intervals from rear to front, and the outer surface of each sealing ring is tightly matched with the inner wall of the chamber.

7. The waterproof connector assembly according to claim 5, characterized in that: At least one positioning hole is arranged on the rear end surface of the chamber, and a positioning convex portion matching the positioning hole is arranged on the rear end surface of the flexible sealing body, and each of the positioning convex portions is inserted into one of the positioning holes.

8. The waterproof connector assembly according to claim 1, characterized in that: The front end of the flexible sealing wire body is provided with a protrusion extending forward, the protrusion matches the through slot, and the protrusion is inserted into the through slot; And / or, the outer surface of the protrusion matches the inner wall of the through groove.

9. The waterproof connector assembly according to claim 8, characterized in that: A plurality of concave cavities are arranged on the rear end surface of the flexible sealing body, each of the concave cavities is arranged opposite to one of the first connecting terminals, and the front end of the concave cavities is arranged in the protruding portion; And / or, a plurality of first sealing rings are provided on the inner wall of each of the concave cavities from back to front at intervals; And / or, the front end surface of the protrusion is provided with alignment holes corresponding one to one with the concave cavity, and the alignment holes are not connected with the concave cavity.

10. A waterproof connector, characterized in that: It comprises a second body, and also comprises the waterproof connector assembly according to any one of claims 1 to 9, wherein the second body is detachably connected to the first plug-in end of the first body; The second main body is provided with a plug-in terminal that is plugged with the first wiring terminal, each of the plug-in terminals corresponds to one of the first wiring terminals one by one, the plug-in terminal passes through the flexible sealing body and is plugged and connected to the plug-in terminal, and the front end of each of the plug-in terminals is connected to a circuit; The flexible sealing body is tightly wrapped around the outside of the line.

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