Sealed connector

Abstract

The utility model discloses a sealed connector, which relates to the technical field of connector structures and comprises a connector body and a connector sleeve shell, and the connector body penetrates into a connector accommodating cavity of the connector sleeve shell. A first sealing ring is arranged between the connector sleeve shell and the connector body, glue is injected between the connector sleeve shell and the connector body, and a glue injection sealing layer is formed between the connector sleeve shell and the connector body after solidification. The utility model mainly solves the problem of how to provide a stable and reliable sealing structure for the connector. According to the sealing type connector, the first sealing ring is arranged between the connector sleeve shell and the connector body to form a physical sealing barrier; glue is injected between the connector sleeve shell and the connector body, a glue injection sealing layer is formed between the connector sleeve shell and the connector body after solidification, and a chemical sealing barrier is formed; through the common sealing effect of the physical sealing barrier and the chemical sealing barrier, the sealing type connector has a stable and reliable sealing structure.

Description

Technical Field

[0001] The utility model relates to the technical field of connector structures, and particularly relates to a sealed connector. Background Art

[0002] A connector can complete the transmission of electric energy and signals between two or more different electrical components. Therefore, connectors are widely used in various fields.

[0003] A sealed connector is an important type of connector, which has certain sealing properties such as waterproof, oil-proof, and dust-proof. In harsh environments such as immersion in water, humidity, and dust, using a sealed connector can effectively prevent liquids and dust from entering the inside of the connector, thereby avoiding problems such as short circuits, open circuits, and loose connections.

[0004] In the existing sealed connectors, usually one or more sealing rings are arranged inside the connector housing, and the sealing ring is compressed by the connector housing / mating structure. After being compressed, the sealing ring is mutually extruded with the connector housing / mating structure to obtain the sealing performance.

[0005] The above-mentioned sealed connectors have problems such as aging, corrosion, and dislocation of the sealing rings. In response to extremely harsh environments such as seawater environments (such as surface operation robots, underwater operation robots, and marine engines), deep-water environments (such as underwater operation robots and submarines), and moving environments, their sealing performance is still insufficient.

[0006] In summary, how to provide a stable and reliable sealing structure for the connector has become an urgent problem to be solved. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a sealed connector with a stable and reliable sealing structure.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A sealed connector includes a connector body and a connector housing; a connector accommodation cavity penetrating through the connector housing is formed in the connector housing, and the connector body penetrates into the connector accommodation cavity of the connector housing; a first sealing ring is arranged between the connector housing and the connector body; and, glue is injected between the connector housing and the connector body, and after curing, a glue injection sealing layer is formed between the connector housing and the connector body.

[0009] In the above technical solution, the glue injection sealing layer is closer to the wire end of the connector body than the first sealing ring; the first sealing ring is closer to the mating end of the connector body than the glue injection sealing layer.

[0010] In the above technical solution, the connector accommodating cavity of the connector housing is concave to form an annular first stop accommodating groove; the first sealing ring is embedded in the first stop accommodating groove of the connector housing; when injecting glue between the connector housing and the connector body, the liquid glue flows at most to the first stop accommodating groove.

[0011] In the above technical solution, the connector housing and the connector body press the first sealing ring, causing the first sealing ring to deform in the first stop accommodating groove.

[0012] In the above technical solution, a second sealing ring is further provided between the connector housing and the connector body.

[0013] In the above technical solution, along the direction from the mating end to the wire end of the connector body, the first sealing ring, the glue injection sealing layer, and the second sealing ring are arranged in sequence.

[0014] In the above technical solution, the connector accommodating cavity of the connector housing is concave to form an annular second stop accommodating groove; the second sealing ring is embedded in the second stop accommodating groove of the connector housing.

[0015] In the above technical solution, the connector housing and the connector body press the second sealing ring, causing the second sealing ring to deform in the second stop accommodating groove.

[0016] In the above technical solution, on the outer side of the connector housing, at a position corresponding to the first stop accommodating groove, it protrudes to form an operation part; the surface of the operation part of the connector housing is provided with anti-slip lines.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: For the sealed connector of the present invention, a first sealing ring is provided between the connector housing and the connector body to form a physical sealing barrier; glue is injected between the connector housing and the connector body, and after curing, a glue injection sealing layer is formed between the connector housing and the connector body, enabling the glue injection sealing layer to fill all the gaps between the connector housing and the connector body, forming a chemical sealing barrier, and good waterproof sealing effect and mechanical fixing effect can be obtained; through the combined sealing effect of the physical sealing barrier and the chemical sealing barrier, the sealed connector of the present invention has a stable and reliable sealing structure. Description of the Drawings

[0018] Figure 1 It is a surface structure view of the present invention.

[0019] Figure 2 It is a cross-sectional structure view of the present invention.

[0020] The reference numerals are: 1, connector body; 11, wire end; 12, mating end; 2, connector housing; 21, connector accommodation cavity; 22, first stop accommodation groove; 23, second stop accommodation groove; 24, operation part; 241, anti-slip pattern; 3, first sealing ring; 4, second sealing ring; 5, injection glue sealing layer. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] This embodiment provides a sealed connector for completing the transmission of electric energy and signals between two or more different electrical components. In this embodiment, one end (i.e., the male end or the female end) of the connector is taken as an example to specifically illustrate the technical solutions of the present invention.

[0023] Please refer to Figure 1 and Figure 2 , the sealed connector of this embodiment includes a connector body 1 and a connector housing 2; wherein, the connector body 1 is used to complete the functions of transmitting electric energy and signals, and the connector housing 2 is used to protect and seal the connector body 1; in this embodiment, the outer contour of the connector body 1 is generally cylindrical, and the surface is made of engineering plastic, which has a wire end 11 and a mating end 12. The outer contour of the connector housing 2 is generally cylindrical, and it is an integrally formed metal housing, such as aluminum alloy or stainless steel.

[0024] A connector accommodation cavity 21 penetrating through itself is formed in the connector housing 2. The connector accommodation cavity 21 is generally cylindrical and is suitable for interference fit with the connector body 1; the connector body 1 is inserted into the connector accommodation cavity 21 of the connector housing 2, and the fixation of the connector body 1 and the connector housing 2 is initially realized by means of interference fit.

[0025] In order to provide sealing performance, a first sealing ring 3 is arranged between the connector housing 2 and the connector body 1, and glue is injected between the connector housing 2 and the connector body 1. After curing, an injection glue sealing layer 5 is formed between the connector housing 2 and the connector body 1; wherein, the first sealing ring 3 is made of an elastomer material, such as rubber or silica gel, and the injection glue sealing layer 5 is formed after the waterproof glue material is cured.

[0026] Specifically, the glue injection sealing layer 5 is closer to the wire end 11 of the connector body 1 than the first sealing ring 3; the first sealing ring 3 is closer to the mating end 12 of the connector body 1 than the glue injection sealing layer 5.

[0027] Furthermore, the connector accommodating cavity 21 of the connector housing 2 is concave to form an annular first stop accommodating groove 22. The first stop accommodating groove 22 can be obtained at the connector housing 2 by means of integral die casting, machining, and stamping. The first sealing ring 3 is embedded in the first stop accommodating groove 22 of the connector housing 2 to accommodate and fix the first sealing ring 3. When injecting glue between the connector housing 2 and the connector body 1, the liquid glue flows at most to the first stop accommodating groove 22. That is, when injecting glue, the liquid glue flows to the first stop accommodating groove 22, reaches a larger accommodating space, and does not flow further forward. In this way, it effectively avoids the liquid glue from flowing to the mating end 12 of the connector body 1.

[0028] Furthermore, the connector housing 2 and the connector body 1 press the first sealing ring 3, causing the first sealing ring 3 to deform in the first stop accommodating groove 22, enabling the physical waterproof performance of the first sealing ring 3 to take effect.

[0029] Furthermore, a second sealing ring 4 is also provided between the connector housing 2 and the connector body 1. The second sealing ring 4 is made of an elastomer material, such as rubber or silica gel.

[0030] Specifically, the first sealing ring 3, the glue injection sealing layer 5, and the second sealing ring 4 are arranged in sequence along the direction from the mating end 12 to the wire end 11 of the connector body 1.

[0031] Furthermore, the connector accommodating cavity 21 of the connector housing 2 is concave to form an annular second stop accommodating groove 23. The second stop accommodating groove 23 can be obtained at the connector housing 2 by means of integral die casting, machining, and stamping. The second sealing ring 4 is embedded in the second stop accommodating groove 23 of the connector housing 2 to accommodate and fix the second sealing ring 4.

[0032] Furthermore, the connector housing 2 and the connector body 1 press the second sealing ring 4, causing the second sealing ring 4 to deform in the second stop accommodating groove 23, enabling the physical waterproof performance of the second sealing ring 4 to take effect.

[0033] Further, on the outer side of the connector housing 2, at a position corresponding to the first stop receiving groove 22, there is an outward protrusion to form an operation portion 24. In fact, by using a stamping method, the first stop receiving groove 22 can be obtained on the inner side of the connector housing 2, and at the same time, the operation portion 24 can be obtained on the outer side of the connector housing 2; on the surface of the operation portion 24 of the connector housing 2, there are anti-slip lines 241. For example, by machining knurling on the surface of the operation portion 24, the anti-slip lines 241 can be obtained; setting the operation portion 24 with the anti-slip lines 241 facilitates the operator to operate the sealed connector.

[0034] For the sealed connector of this embodiment, along the direction from the wire end 11 to the mating end 12 of the connector body 1, a second sealing ring 4, a glue injection sealing layer 5, and a first sealing ring 3 are arranged in sequence; among them, the second sealing ring 4 constitutes the first physical sealing barrier; glue is injected between the connector housing 2 and the connector body 1, and after curing, a glue injection sealing layer 5 is formed between the connector housing 2 and the connector body 1, enabling the glue injection sealing layer 5 to fill all the gaps between the connector housing 2 and the connector body 1, constituting a chemical sealing barrier, and good waterproof and sealing effects and mechanical fixing effects can be obtained; the first sealing ring 3 constitutes the second physical sealing barrier; through the combined sealing action of the physical sealing barrier and the chemical sealing barrier, the sealed connector of this embodiment has a stable and reliable sealing structure.

[0035] For the sealed connector of this embodiment, a first sealing ring 3 is arranged between the connector housing 2 and the connector body 1, constituting a physical sealing barrier; glue is injected between the connector housing 2 and the connector body 1, and after curing, a glue injection sealing layer 5 is formed between the connector housing 2 and the connector body 1, enabling the glue injection sealing layer 5 to fill all the gaps between the connector housing 2 and the connector body 1, constituting a chemical sealing barrier, and good waterproof and sealing effects and mechanical fixing effects can be obtained; through the combined sealing action of the physical sealing barrier and the chemical sealing barrier, the sealed connector of this embodiment has a stable and reliable sealing structure.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed connector, comprising a connector body and a connector housing; A connector accommodation cavity penetrating through the connector housing is formed therein, and the connector body is inserted into the connector accommodation cavity of the connector housing; characterized in that, A first sealing ring is provided between the connector housing and the connector body; And, glue is injected between the connector housing and the connector body, and after curing, a glue injection sealing layer is formed between the connector housing and the connector body.

2. The sealed connector according to claim 1, wherein The glue injection sealing layer is closer to the wire end of the connector body than the first sealing ring; The first sealing ring is closer to the mating end of the connector body than the glue injection sealing layer.

3. The sealed connector according to claim 1 or 2, characterized in that, The connector accommodation cavity of the connector housing is concave to form an annular first stop accommodation groove; The first sealing ring is embedded in the first stop accommodation groove of the connector housing; When injecting glue between the connector housing and the connector body, the liquid glue flows at most to the first stop accommodation groove.

4. The sealed connector according to claim 3, characterized in that, The connector housing and the connector body press the first sealing ring to cause the first sealing ring to deform in the first stop accommodation groove.

5. The sealed connector according to claim 1 or 2, characterized in that, A second sealing ring is further provided between the connector housing and the connector body.

6. The sealed connector according to claim 5, characterized in that, The first sealing ring, the glue injection sealing layer and the second sealing ring are arranged in sequence along the direction from the mating end to the wire end of the connector body.

7. The sealed connector according to claim 5, wherein The connector accommodation cavity of the connector housing is concave to form an annular second stop accommodation groove; The second sealing ring is embedded in the second stop accommodation groove of the connector housing.

8. The sealed connector according to claim 7, characterized in that, The connector housing and the connector body press the second sealing ring to cause the second sealing ring to deform in the second stop accommodation groove.

9. The sealed connector according to claim 3, wherein On the outer side of the connector housing, a protruding operation part is formed at a position corresponding to the first stop accommodation groove; The surface of the operation part of the connector housing is provided with anti-slip lines.

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