A sealing and waterproof mechanism for automobile wiring harness connector

Abstract

The present application relates to a sealing and waterproof mechanism for an automotive wiring harness connector, belonging to the technical field of automotive wiring harness connectors. The mechanism comprises a wiring harness and a connector terminal, wherein the wiring harness is fixedly disposed within the connector terminal, and the connector terminal comprises a male plug and a female plug that are plugged into and connected to each other; a sleeve tube, which is used to sleeve the wiring harness and is located near the connector terminal. A filler is provided within the sleeve tube, which is used to fill and seal gaps between the wiring harness and between the wiring harness and the sleeve tube; a seal is provided on the outside of the sleeve tube near the male plug, which is used to span and sleeve the sleeve tube on the female plug to seal the joint between the male and female plugs. The present application has the effect of improving the sealing performance of automotive wiring harness connectors.

Description

Technical Field

[0001] The present application relates to the technical field of automobile wiring harness connectors, and in particular to a sealing and waterproof mechanism for automobile wiring harness connectors. Background Art

[0002] The automotive wiring harness is the network backbone of the vehicle's electrical circuits and the carrier of their existence. It serves as the bridge and link between the vehicle's electrical components and the vehicle's nervous system for power and signal transmission and distribution. It can be configured for internal and external wiring harness connections based on different voltage levels. It is primarily used for signal distribution within distribution boxes, efficiently and effectively transmitting electrical energy while shielding against external signal interference.

[0003] However, when the automotive wiring harness is connected to the electrical component socket, there is a certain gap between the sockets, and the high-voltage wiring harness and the component socket are not sealed, resulting in a low sealing and waterproof level that does not meet the requirements for vehicle use. Summary of the Invention

[0004] In order to improve the sealing effect between automobile wiring harness connectors, the present application provides a sealing and waterproof mechanism at automobile wiring harness connectors.

[0005] The present application provides a sealing and waterproof mechanism for an automotive wiring harness connector that adopts the following technical solutions:

[0006] A sealing and waterproof mechanism for a connector of an automobile wiring harness comprises a wiring harness and a plug terminal, wherein the wiring harness is fixedly arranged in the plug terminal, and the plug terminal comprises a male plug and a female plug that are plugged into each other; further comprising a sleeve tube, which is used to sleeve the wiring harness and is close to the plug terminal, and a filler is provided in the sleeve tube, which is used to fill and seal the gaps between the wiring harnesses and between the wiring harnesses and the sleeve tube; a sealing member is provided on the outside of the sleeve tube near the male plug, which is used to span and sleeve the sleeve tube on the female plug to seal the plug seam between the male and female plugs.

[0007] Optionally, the filling piece includes sealing wax arranged in the sleeve, and a first liquid injection hole for injecting liquid sealing wax into the sleeve is opened on the peripheral wall of the sleeve; the filling piece also includes a sealing piece, which is used to seal both ends of the sleeve when injecting liquid sealing wax so that the sealing wax is filled in the sleeve to seal between the wire harnesses and between the wire harnesses and the sleeve.

[0008] Optionally, the sealing member includes a sealing airbag, which is coaxial with the sleeve tube, and the wiring harness is located between the sealing airbag and the sleeve tube. The sealing airbag is annular, and the outer ring of the sealing airbag is provided with multiple branch airbags, and the branch airbags are evenly arranged along the circumference of the sealing airbag. The branch airbags are connected with the sealing airbags, and the wiring harness is located between adjacent branch airbags. The sealing member also includes a sealing air core arranged on the sealing airbag, and the sealing air core is used to connect the inflation device and inject gas into the sealing airbag, so that the volume of the sealing airbag and the branch airbag increases to seal the end face of the sleeve tube.

[0009] Optionally, the sealing member includes a sleeve airbag arranged on the sleeve tube, the sleeve airbag is in a long strip shape and is opened at both ends, the sleeve airbag is sealed on the sleeve tube, and a fixing member is provided on the other sleeve tube. The fixing member is used to connect the male plug and the female plug, and then the port of the sleeve airbag is sleeved on the sleeve tube and the port of the sleeve airbag is fixed and sealed on the sleeve tube.

[0010] Optionally, the fixing member includes a fixing plate sealingly sleeved on the sleeve tube, and a circumferential mounting groove is provided on the surface of the fixing plate facing away from the female plug, and the mounting groove contacts the outer wall of the sleeve tube. The fixing member also includes a slide plate, which is slidably arranged on the sleeve tube and is used to be clamped in the mounting groove, and the port of the sleeve airbag is used to be sleeved on the peripheral wall of the slide plate and clamped in the mounting groove.

[0011] Optionally, an annular groove is provided on the peripheral wall of the slide plate, the port of the sleeve airbag is sleeved in the annular groove, and sealing wax is injected into the annular groove after the sleeve airbag is sleeved in the annular groove.

[0012] Optionally, the fixing member also includes a plurality of liquid flow grooves opened on the bottom wall of the annular groove, and the sleeve airbag port is located on the bottom wall of the annular groove; a second liquid injection hole is opened on the surface of the slide away from the fixed plate, and the second liquid injection hole is connected to the annular groove.

[0013] Optionally, the port of the sleeve airbag is provided with an elastic ring, and the diameter of the elastic ring is smaller than the diameter of the annular groove.

[0014] Optionally, the contact surface between the fixing plate and the sleeve airbag is provided with rounded corners.

[0015] Optionally, an air valve is provided on the sleeve airbag, and the air valve is used to connect to a vacuum device to extract the gas in the sleeve airbag and fit on the male plug and the female plug.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. After the wiring harness is fixed in the plug-in terminal, the male plug is inserted into the female plug to complete the plug-in connection of the wiring harness. The sleeve is used to socket all the wiring harnesses, and the gaps between the wiring harnesses and the gaps between the wiring harnesses and the sleeve are filled with fillers. Then the plug-in terminals are plugged in, and then the seal is used from the sleeve to another sleeve. When the seal is sealed, the male and female plugs are socketed inside, and the plug-in terminal is relatively separated from the external environment, thereby improving the waterproofness and corrosion resistance of the plug interface; at the same time, under the action of the filler and seal, the sealing performance between the wiring harness sockets is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a sealing and waterproof mechanism at an automotive wiring harness connector according to an embodiment of the present application;

[0019] Figure 2 This is a cross-sectional view of an airbag in a sealing and waterproof mechanism at an automotive wiring harness connector according to an embodiment of the present application;

[0020] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0021] Figure 4 This is a cross-sectional view of a sealing member in a sealing and waterproof mechanism at an automotive wiring harness connector according to an embodiment of the present application;

[0022] Figure 5 yes Figure 4 Schematic diagram of the enlarged portion B.

[0023] Description of reference numerals: 1, wiring harness; 2, plug terminal; 21, male plug; 22, female plug; 3, sleeve tube;

[0024] 4. Sealing element; 41. Airbag sleeve; 42. Fixing plate; 43. Slide plate;

[0025] 5. First liquid injection hole; 6. Sealing airbag; 7. Branch airbag; 8. Sealing air core; 9. Mounting groove; 10. Annular groove; 11. Liquid flow groove; 12. Second liquid injection hole; 13. Elastic ring; 14. Air valve. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] The embodiment of the present application discloses a sealing and waterproof mechanism for the connector of an automobile wiring harness. Figure 1 and Figure 2The sealing and waterproof mechanism at the connector of the automobile wiring harness includes a wiring harness 1 and a plug terminal 2. The wiring harness 1 is fixedly arranged in the plug terminal. The plug terminal includes a male plug 21 and a female plug 22 and is plugged into each other; it also includes a sleeve 3, which is used to sleeve the wiring harness 1 and is close to the plug terminal. A filler is provided in the sleeve 3, which is used to fill the gap between the wiring harness 1 and between the wiring harness 1 and the sleeve 3 and seal it; a seal 4 is provided on the outside of the sleeve 3 near the male plug 21, which is used to span and sleeve the sleeve 3 on the female plug 22 to seal the plug seam between the male plug 21 and the female plug 22.

[0028] After the wiring harness 1 is fixed in the plug-in terminal, the male plug 21 is plugged into the female plug 22 to complete the plug-in connection of the wiring harness 1. The sleeve 3 sleeves all the wiring harnesses 1 and fills the gaps between the wiring harnesses 1 and the gaps between the wiring harness 1 and the sleeve 3 through the filler. Then the plug-in terminal 2 is plugged in, and then the seal 4 is used to seal from the sleeve 3 to another sleeve 3. When the seal 4 is sealed, the male plug 21 and the female plug 22 are sleeved inside, and the wiring terminal is relatively separated from the external environment, thereby improving the waterproofness and corrosion resistance of the plug interface; at the same time, under the action of the filler and the seal 4, the sealing performance between the sockets of the wiring harness 1 is improved.

[0029] Reference Figure 2 and Figure 3 In the embodiment of the present application, the filling member includes sealing wax arranged in the sleeve tube 3, and a first liquid injection hole 5 for injecting liquid sealing wax into the sleeve tube 3 is opened on the peripheral wall of the sleeve tube 3, and the first liquid injection hole 5 is connected to the inner tube of the sleeve tube 3; after the wiring harness 1 is sleeved in the sleeve tube 3, hot-melt sealing wax is injected into the sleeve tube 3 through the first liquid injection hole 5. When the hot-melt sealing wax cools, the sealing wax fills the gap between the wiring harnesses 1 and the gap between the wiring harness 1 and the inner wall of the sleeve tube 3, and fixes the wiring harness 1 in the sleeve tube 3, and the sealing member 4 is sealed from the sleeve tube 3 to another sleeve tube 3, reducing the possibility of external water penetrating into the socket of the wiring harness 1 through the sleeve tube 3, thereby improving the sealing of the plug terminal.

[0030] Reference Figure 2 and Figure 3After the hot-melt sealing wax is injected into the sleeve tube 3, the sealing wax is easy to leak out through the port of the sleeve tube 3, which makes the sealing wax unable to cool and form in the sleeve tube 3. The filling piece also includes a sealing piece. When the liquid sealing wax is injected, the sealing piece seals both ends of the sleeve tube 3 so that the sealing wax is filled in the sleeve tube 3 to seal between the wiring harness 1 and between the wiring harness 1 and the sleeve tube 3. The sealing piece includes a sealing airbag 6. The sealing airbag 6 is coaxial with the sleeve tube 3. The wiring harness 1 is located between the sealing airbag 6 and the sleeve tube 3. The sealing airbag 6 is annular, and a plurality of branch airbags 7 are provided on the outer ring of the sealing airbag 6. The branch airbags 7 abut the inner wall of the sleeve tube 3. The branch airbags 7 are evenly arranged along the circumference of the sealing airbag 6. The branch airbags 7 are connected to the sealing airbag 6. The wiring harness 1 is located between adjacent branch airbags 7. The sealing member also includes a sealing air core 8 provided on the sealing airbag 6. The sealing air core 8 is used to connect the inflation device and inject gas into the sealing airbag 6. The volume of the sealing airbag 6 and the branch airbag 7 increases to block the end face of the sleeve tube 3.

[0031] Before injecting sealing wax into the sleeve tube 3, install the sealing airbag 6 and the branch airbag 7 in the sleeve tube 3, and place the wiring harness 1 between the branch airbags 7. Then connect the air pump or the like to the sealing air core 8, and the air pump inflates the sealing airbag 6 and the branch airbag 7. The volume of the sealing airbag 6 and the branch airbag 7 expands and closes the port of the sleeve tube 3. Then, inject the sealing wax into the sleeve tube 3. When the sealing wax flows to the port of the sleeve tube 3, the sealing airbag 6 and the branch airbag 7 block the flow of the sealing wax, thereby reducing the possibility of leakage of the sealing wax from the port of the sleeve tube 3.

[0032] Reference Figure 4 and Figure 5 In the embodiment of the present application, the sealing member 4 includes a sleeve airbag 41 arranged on the sleeve tube 3. The sleeve airbag 41 is long and has openings at both ends. The sleeve airbag 41 is sealed on the sleeve tube 3. A fixing member is provided on the other sleeve tube 3. The fixing member is used for connecting the male plug 21 and the female plug 22. After that, the port of the sleeve airbag 41 is sleeved on the sleeve tube 3 and the port of the sleeve airbag 41 is fixed and sealed on the sleeve tube 3; after the plug-in terminal 2 is plugged in, the port of the sleeve airbag 41 is pulled to the sleeve tube 3 through the plug-in terminal 2, and then the port of the sleeve airbag 41 is fixed to the sleeve tube 3 by the fixing member, thereby sealing the plug-in terminal. The operation is simple and convenient.

[0033] Reference Figure 4 and Figure 5The fixing member includes a fixing plate 42 which is sealingly sleeved on the sleeve tube 3. The fixing plate 42 is disc-shaped. The surface of the fixing plate 42 facing away from the female plug 22 is provided with an annular mounting groove 9, and the mounting groove 9 contacts the outer wall of the sleeve tube 3. The fixing member also includes a slide plate 43, which is slidably arranged on the sleeve tube 3 and is used to be clamped in the mounting groove 9. The port of the sleeve airbag 41 is used to be sleeved on the peripheral wall of the slide plate 43 and clamped in the mounting groove 9. When fixing the port of the sleeve airbag 41, first sleeve the sleeve airbag 41 on the peripheral wall of the slide plate 43, and then slide the slide plate 43 to drive the sleeve airbag 41 into the mounting groove 9. The slide plate 43 fixes the sleeve airbag 41 in the fixing plate 42, which is simple and convenient to operate. The sleeve airbag 41 is fixed in the mounting groove 9 by the slide plate 43, and the port of the sleeve airbag 41 is in a folded state, thereby improving the sealing effect between the sleeve airbag 41 and the sleeve tube 3.

[0034] Reference Figure 4 and Figure 5 In order to facilitate the sleeve airbag 41 to be sleeved on the peripheral wall of the slide plate 43, an annular groove 10 is opened on the peripheral wall of the slide plate 43, and the port of the sleeve airbag 41 is sleeved in the annular groove 10, and the sleeve airbag 41 is sleeved in the annular groove 10 and then the sealing wax is injected into the annular groove 10; when the sleeve airbag 41 is fixed on the slide plate 43, the sleeve airbag 41 is sleeved in the annular groove 10, and the sleeve airbag 41 is fixed on the slide plate 43, and the operation is simple and convenient; and the sleeve airbag 41 is sleeved in the annular groove 10, and then the sealing wax is injected into the annular groove 10. When the sealing wax cools, the sleeve airbag 41 is sealed and fixed in the annular groove 10.

[0035] Reference Figure 4 and Figure 5 In the embodiment of the present application, the fixing member also includes a plurality of liquid-passing grooves 11 opened on the bottom wall of the annular groove 10, and the port of the sleeve airbag 41 is located on the bottom wall of the annular groove 10; a second liquid injection hole 12 is opened on the surface of the slide plate 43 away from the fixed plate 42, and the second liquid injection hole 12 is connected to the annular groove 10; after the sleeve airbag 41 is sleeved on the slide plate 43, the sliding slide plate 43 is clamped in the mounting groove 9, and then the sealing wax is injected into the annular groove 10 through the second liquid injection hole 12, and the mounting groove 9 on the fixed plate 42 closes the opening of the annular groove 10, thereby reducing the possibility of the sealing wax leaking through the annular groove 10, and then the sealing wax is cooled in the annular groove 10; and under the operation of the liquid-passing groove 11, it is convenient for the sealing wax to pass through the liquid-passing groove 11 over the sleeve airbag 41 to the back of the sleeve airbag 41, thereby sealing the sleeve airbag 41 on the slide plate 43.

[0036] Reference Figure 4 and Figure 5In the embodiment of the present application, the port of the sleeve airbag 41 is provided with an elastic ring 13, and the diameter of the elastic ring 13 is smaller than the diameter of the annular groove 10; under the action of the elastic ring 13, the sleeve airbag 41 is easily fixed in the annular groove 10.

[0037] Reference Figure 4 and Figure 5 In the embodiment of the present application, the contact surface between the fixing plate 42 and the sleeve airbag 41 is provided with a rounded corner; under the effect of the rounded corner, the possibility of the fixing plate 42 damaging the sleeve airbag 41 is reduced.

[0038] Reference Figure 4 and Figure 5 In the embodiment of the present application, an air valve 14 is provided on the sleeve airbag 41 , and the air valve 14 is used to connect to the exhaust device to extract the gas in the sleeve airbag 41 and fit on the male plug 21 and the female plug 22 .

[0039] The implementation principle of a sealing and waterproof mechanism at an automobile wiring harness connector in an embodiment of the present application is as follows:

[0040] After the wiring harness 1 is fixed in the plug-in terminal, the male plug 21 is plugged into the female plug 22 to complete the plug-in connection of the wiring harness 1. The sleeve 3 sleeves all the wiring harnesses 1 and fills the gaps between the wiring harnesses 1 and the gaps between the wiring harness 1 and the sleeve 3 through the filler. Then the plug-in terminal 2 is plugged in, and then the seal 4 is used to seal from the sleeve 3 to another sleeve 3. When the seal 4 is sealed, the male plug 21 and the female plug 22 are sleeved inside, and the wiring terminal is relatively separated from the external environment, thereby improving the waterproofness and corrosion resistance of the plug interface; at the same time, under the action of the filler and the seal 4, the sealing performance between the sockets of the wiring harness 1 is improved.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sealing and waterproof mechanism for an automobile wiring harness connector, characterized in that: The invention comprises a wiring harness (1) and a plug-in terminal (2), wherein the wiring harness (1) is fixedly arranged in the plug-in terminal, and the plug-in terminal comprises a male plug (21) and a female plug (22) and is plug-connected to each other; the invention also comprises a sleeve tube (3), wherein the sleeve tube (3) is used to sleeve the wiring harness (1) and is close to the plug-in terminal, and a filler is provided in the sleeve tube (3), wherein the filler is used to fill the gap between the wiring harness (1) and between the wiring harness (1) and the sleeve tube (3) and to seal the gap; a sealing member (4) is provided on the outside of the sleeve tube (3) near the male plug (21), wherein the sealing member (4) is used to span and sleeve the sleeve tube (3) on the female plug (22) to seal the plug-in seam between the male plug (21) and the female plug (22); The sealing member (4) comprises a sleeve airbag (41) arranged on the sleeve tube (3), the sleeve airbag (41) is in a long strip shape and is opened at both ends, the sleeve airbag (41) is sealed and arranged on the sleeve tube (3), and a fixing member is provided on the other sleeve tube (3), and the fixing member is used for sleeve-connecting the port of the sleeve airbag (41) on the sleeve tube (3) after the male plug (21) and the female plug (22) are connected, and the port of the sleeve airbag (41) is fixed and sealed on the sleeve tube (3); The fixing member includes a fixing plate (42) that is sealingly sleeved on the sleeve tube (3); a surface of the fixing plate (42) facing away from the female plug (22) is provided with an annular mounting groove (9); the mounting groove (9) contacts the outer wall of the sleeve tube (3); the fixing member also includes a slide plate (43); the slide plate (43) is slidably arranged on the sleeve tube (3) and is used to be clamped in the mounting groove (9); the port of the sleeve airbag (41) is used to be sleeved on the peripheral wall of the slide plate (43) and is clamped in the mounting groove (9); The peripheral wall of the slide plate (43) is provided with an annular groove (10), the port of the sleeve airbag (41) is sleeved in the annular groove (10), and after the sleeve airbag (41) is sleeved in the annular groove (10), sealing wax is injected into the annular groove (10); The fixing member further comprises a plurality of liquid passage grooves (11) provided on the bottom wall of the annular groove (10), and the sleeve airbag (41) port is located on the bottom wall of the annular groove (10); a second liquid injection hole (12) is provided on the surface of the slide plate (43) facing away from the fixing plate (42), and the second liquid injection hole (12) is communicated with the annular groove (10); The sleeve airbag (41) is provided with an air valve (14), and the air valve (14) is used to connect to an air extraction device to extract the gas in the sleeve airbag (41) and fit on the male plug (21) and the female plug (22).

2. The sealing and waterproof mechanism for automobile wiring harness connector according to claim 1, characterized in that: The filling member includes sealing wax arranged in the sleeve tube (3), and a first liquid injection hole (5) for injecting liquid sealing wax into the sleeve tube (3) is opened on the peripheral wall of the sleeve tube (3); the filling member also includes a sealing member, which is used to seal the two ends of the sleeve tube (3) when injecting liquid sealing wax, so that the sealing wax is filled in the sleeve tube (3) to seal between the wire harnesses (1) and between the wire harnesses (1) and the sleeve tube (3).

3. The sealing and waterproof mechanism for automobile wiring harness connector according to claim 2, characterized in that: The sealing member includes a sealing airbag (6), the sealing airbag (6) is coaxial with the sleeve tube (3), the wiring harness (1) is located between the sealing airbag (6) and the sleeve tube (3), the sealing airbag (6) is annular, and a plurality of branch airbags (7) are provided on the outer ring of the sealing airbag (6), the branch airbags (7) are evenly arranged along the circumference of the sealing airbag (6), the branch airbags (7) are connected to the sealing airbag (6), and the wiring harness (1) is located between adjacent branch airbags (7). The sealing member also includes a sealing air core (8) provided on the sealing airbag (6), the sealing air core (8) is used to connect the inflation device and inject gas into the sealing airbag (6), so that the volume of the sealing airbag (6) and the branch airbag (7) increases and blocks the end face of the sleeve tube (3).

4. The sealing and waterproof mechanism for automobile wiring harness connector according to claim 1, characterized in that: The port of the sleeve airbag (41) is provided with an elastic ring (13), and the diameter of the elastic ring (13) is smaller than the diameter of the annular groove (10).

5. The sealing and waterproof mechanism for automobile wiring harness connector according to claim 1, characterized in that: The contact surface between the fixing plate (42) and the sleeve airbag (41) is provided with a rounded corner.

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