Wire harness connector with high safety performance

Abstract

The utility model discloses a wire harness connector with high safety performance, which comprises a connector and wire harness connecting pipes detachably arranged on two sides of the connector, and the wire harness connecting pipes comprise a first connecting pipe detachably connected with the connector and a second connecting pipe detachably connected with the first connecting pipe; wherein the first connecting pipe and the second connecting pipe enclose to form a mounting ring groove, an annular air bag is arranged in the mounting ring groove, the second connecting pipe is provided with an inflation inlet, and the inflation inlet is communicated with the annular air bag. The annular air bag is inflated through the inflation inlet, so that the annular air bag is expanded, the annular air bag is limited by the installation annular groove and can only expand towards the wire harness, sealing is formed between the wire harness and the second connecting pipe, and due to the fact that the expansion degrees of the annular air bag can be different, when the sizes of different wire harnesses of the same specification are different, the wire harness can be sealed. The annular air bag can still form effective sealing, the sealing effect is good, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness connection, in particular to a wire harness connector with high safety performance. Background Art

[0002] The wiring harness is an indispensable system-level component in the circuit system. Its function is to provide and distribute power to the circuit system, and also act as a medium for signal transmission between various components.

[0003] The connection nodes between the wiring harnesses require strong sealing protection to prevent the entry of media such as water that can easily damage the connection nodes. The existing wiring harness sealing methods have certain limitations and the sealing effect is poor. Utility Model Content

[0004] The technical problem to be solved by the utility model is: the utility model provides a wire harness connector with high safety performance to solve the problem of poor sealing effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a high-safety wire harness connector, comprising a connector, a detachable wire harness connecting tube arranged on both sides of the connector, the wire harness connecting tube comprising a first connecting tube detachably connected to the connector, and a second connecting tube detachably connected to the first connecting tube;

[0006] The first connecting tube and the second connecting tube are combined to form a mounting ring groove, an annular airbag is arranged in the mounting ring groove, and the second connecting tube is provided with an inflation port, which is connected to the annular airbag.

[0007] The beneficial effect of the utility model is that the wire harness connecting tubes on both sides are respectively used to connect two wire harnesses to be connected. The two wire harnesses to be connected are connected in the connector, and the wire harness connecting tube is formed by a first connecting tube and a second connecting tube. By arranging an annular airbag between the first connecting tube and the second connecting tube, after the wire harness enters the wire harness connecting tube, the annular airbag is inflated through the inflation port to expand the annular airbag. Since the annular airbag is limited by the mounting ring groove, it can only expand in the direction of the wire harness, thereby forming a seal between the wire harness and the second connecting tube. Since the expansion degree of the annular airbag can be different, when the sizes of different wire harnesses of the same specification are different, the annular airbag can still form an effective seal, with good sealing effect and high safety.

[0008] Preferably, the connector comprises a connection box body and an end cover arranged on the connection box body, the first connection pipe is threadedly connected to the connection box body, and an O-ring is arranged between the first connection pipe and the connection box body.

[0009] Preferably, a stepped protrusion is provided on a side of the connection box body facing the end cover, and the end cover is provided with a stepped groove adapted to the stepped protrusion.

[0010] Preferably, a wire supporting protrusion is provided in the connection box body, and a wire supporting groove is provided on a side of the wire supporting protrusion facing the end cover.

[0011] Preferably, the first connecting pipe is provided with a shaft shoulder;

[0012] And / or, the connection box and the end cover are provided with a first mounting hole, and the connection box and the end cover are provided with a second mounting hole.

[0013] Preferably, the annular airbag is filled with helium. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the three-dimensional structure of a wiring harness connector with high safety performance;

[0015] Figure 2 A cross-sectional view of a wiring harness connector with high safety performance;

[0016] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0017] Figure 4 A schematic diagram of the three-dimensional structure of a high-safety wiring harness connector with the end cover removed.

[0018] In the figure: 1, end cover; 2, connecting box; 3, first mounting hole; 4, second mounting hole; 5, first connecting pipe; 6, second connecting pipe; 7, wire support protrusion; 8, step protrusion; 9, step groove; 10, O-ring; 11, inflation port; 12, annular airbag. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0021] Example

[0022] like Figure 1-4 As shown, a high-safety wiring harness connector includes a connector and detachable wiring harness connecting tubes arranged on both sides of the connector, the wiring harness connecting tubes include a first connecting tube 5 detachably connected to the connector and a second connecting tube 6 detachably connected to the first connecting tube 5; wherein the first connecting tube 5 and the second connecting tube 6 are combined to form an installation ring groove, an annular airbag 12 is arranged in the installation ring groove, and the second connecting tube 6 is provided with an inflation port 11, and the inflation port 11 is connected to the annular airbag 12.

[0023] Specifically, the harness connection tubes on both sides are used to connect two harnesses to be connected. The two harnesses to be connected are connected in the connector. The harness connection tube is formed by a first connection tube 5 and a second connection tube 6. An annular airbag 12 is arranged between the first connection tube 5 and the second connection tube 6, so that after the harness enters the harness connection tube, the annular airbag 12 is inflated through the inflation port 11 to expand the annular airbag 12. Since the annular airbag 12 is limited by the mounting ring groove, it can only expand in the direction of the harness, thereby forming a seal between the harness and the second connection tube 6. Since the expansion degree of the annular airbag 12 can be different, when the sizes of different harnesses of the same specification are different, the annular airbag 12 can still form an effective seal, with good sealing effect and high safety.

[0024] The inflation port 11 is a mature existing technology, which is provided with conventional components such as a one-way valve body and an air nozzle nut to achieve inflation and sealing after inflation. Of course, the inflation port 11 can also be equipped with an air station to maintain the air pressure inside the annular airbag 12. No excessive restrictions are imposed on the specific structure of the inflation port 11.

[0025] Furthermore, the connector includes a connecting box 2, an end cover 1 arranged on the connecting box 2, a first connecting pipe 5 is threadedly connected to the connecting box 2, an O-ring 10 is arranged between the first connecting pipe 5 and the connecting box 2, and the connector is separately arranged, which includes the connecting box 2 and the end cover 1 arranged on the connecting box 2, so as to facilitate the connection between the wiring harness ports, and an O-ring 10 is arranged between the wiring harness connecting pipe and the connector, that is, between the connecting box 2 and the first connecting pipe 5, for effective sealing to prevent dangerous media such as water from entering the connecting box 2.

[0026] Furthermore, a stepped protrusion 8 is provided on the side of the connecting box body 2 facing the end cover 1, and the end cover 1 is provided with a stepped groove 9 adapted to the stepped protrusion 8. The stepped protrusion 8 and the stepped groove 9 together form a labyrinth seal. Preferably, a sealing medium is also provided between the stepped protrusion 8 and the stepped groove 9. A triple seal is formed by the annular airbag 12, the O-ring 10, the stepped protrusion 8 and the stepped groove 9 to ensure the airtightness of the connector.

[0027] Furthermore, a wire supporting protrusion 7 is provided in the connecting box 2, and a wire supporting groove is provided on the side of the wire supporting protrusion 7 facing the end cover 1. The wire supporting groove is used to support the wiring harness, which is beneficial to the docking of the wiring harness inside the connecting box 2, and the wire supporting protrusion 7 can also limit the first connecting tube 5 to avoid excessive insertion of the first connecting tube 5.

[0028] Furthermore, the first connecting pipe 5 is provided with a shoulder; the shoulder is used for positioning

[0029] And / or, the connection box 2 and the end cover 1 are provided with a first mounting hole 3, and the connection box 2 and the end cover 1 are provided with a second mounting hole 4. The second mounting hole 4 is used to connect the connection box 2 and the end cover 1, and the connection between the connection box 2 and the end cover 1 can be achieved by screwing a screw into the second mounting hole 4 during connection. The first mounting hole 3 is used to connect the connection box 2 and the end cover 1 to an external component, and the connection principle is similar to that of the second mounting hole 4.

[0030] Furthermore, the annular airbag 12 is filled with helium, which has good inertness and is beneficial to improving the service life of the annular airbag 12. When the temperature rises, the helium in the annular airbag 12 can also expand to improve the sealing performance.

[0031] The above-mentioned technical features can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A wiring harness connector with high safety performance, characterized in that: It comprises a connector and a wiring harness connecting tube detachably arranged on both sides of the connector, wherein the wiring harness connecting tube comprises a first connecting tube (5) detachably connected to the connector and a second connecting tube (6) detachably connected to the first connecting tube (5); The first connecting tube (5) and the second connecting tube (6) are combined to form a mounting ring groove, an annular airbag (12) is arranged in the mounting ring groove, and the second connecting tube (6) is provided with an inflation port (11), and the inflation port (11) is connected to the annular airbag (12).

2. A high safety performance wiring harness connector according to claim 1, characterized in that: The connector comprises a connection box (2), an end cover (1) arranged on the connection box (2), the first connection pipe (5) being threadedly connected to the connection box (2), and an O-ring (10) being arranged between the first connection pipe (5) and the connection box (2).

3. A high safety performance wiring harness connector according to claim 2, characterized in that: A stepped protrusion (8) is provided on one side of the connection box body (2) facing the end cover (1), and the end cover (1) is provided with a stepped groove (9) adapted to fit the stepped protrusion (8).

4. A high safety performance wiring harness connector according to claim 2, characterized in that: A wire supporting protrusion (7) is provided in the connection box body (2), and a wire supporting groove is provided on one side of the wire supporting protrusion (7) facing the end cover (1).

5. A high safety performance wiring harness connector according to claim 2, characterized in that: The first connecting pipe (5) is provided with a shaft shoulder; And / or, the connection box (2) and the end cover (1) are provided with a first mounting hole (3), and the connection box (2) and the end cover (1) are provided with a second mounting hole (4).

6. A high safety performance wiring harness connector according to claim 1, characterized in that: The annular airbag (12) is filled with helium.

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