Vehicle electric connector with excellent waterproof performance

Abstract

The invention discloses a vehicle electric connector with excellent waterproof performance, and relates to the field of electric connectors, the vehicle electric connector comprises a female connecting piece and a sub connecting piece, the female connecting piece and the sub connecting piece are respectively connected with an external cable, the female connecting piece is buckled with the sub connecting piece, a rubber waterproof ring is sleeved in the female connecting piece, and the rubber waterproof ring is buckled with the sub connecting piece. The inner side of the child connecting piece and the rubber waterproof ring are pressed tightly, pressing pieces are inserted into the female connecting piece and the child connecting piece, an external cable is fixed into the female connecting piece and the child connecting piece through the pressing pieces, assembly is convenient through the pressing pieces, the waterproof performance is improved through the rubber waterproof ring, and the waterproof performance of the cable is improved. By adopting the glue injection hole, the sealing groove and the notch, liquid silica gel can be conveniently injected into the internal interface positions of the primary connecting piece and the secondary connecting piece, the waterproof performance is further improved, and by adopting the first elastic pressing piece and the second elastic pressing piece, the connection effect and the connection stability between the cables are improved.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors, and in particular to a vehicle electrical connector with excellent waterproof performance. Background Art

[0002] An electrical connector, also known as a plug socket or a connector, is a device, component, or system used to connect circuits or electronic systems between different devices, and is a basic element for realizing electrical connection and signal transmission. Electrical connectors play a key connection role between the cable wires of electrical and electronic devices, between cable wires and devices. Especially in electrical control systems and power applications, electrical connectors are indispensable. Their working reliability directly affects the normal operation of the circuit and involves the safety of the entire system. In current vehicles, when connecting the vehicle's circuit system, a relatively large number of electrical connectors are required. During use, due to the use of the vehicle for a long time outdoors, in order to ensure the stability and reliability of the connection, relatively strong waterproof performance is often required.

[0003] Most of the current vehicle electrical connectors use waterproof pads or waterproof rings made of rubber materials for waterproofing. During the operation of the vehicle, they continuously withstand thermal cycling, mechanical vibration, and chemical medium erosion, which easily causes the fracture of polymer chains, resulting in the attenuation of the elastic modulus, causing the interface sealing pressure to drop, resulting in the loss of waterproof performance and affecting the vehicle's circuit system.

[0004] In the current connection method, most use copper clips and copper sheets. The copper clips clamp and connect the copper sheets. However, during long-term use or plugging and unplugging, due to metal fatigue, the elasticity of the copper clips decreases. When connecting, the contact is not sufficient, resulting in poor contact at the connection position and affecting normal use. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem proposed in the background art, a vehicle electrical connector with excellent waterproof performance is proposed.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A vehicle electrical connector with excellent waterproof performance, including a female connector and a male connector. The female connector and the male connector are respectively connected to external cables, and the female connector and the male connector are buckled together. A rubber waterproof ring is sleeved inside the female connector, and the inner side of the male connector is pressed tightly against the rubber waterproof ring. Pressing members are inserted into both the female connector and the male connector. The external cables are fixed inside the female connector and the male connector through the pressing members. When in use, the wires that need to be connected in the external vehicle circuit system are respectively connected to the female connector and the male connector. When connecting, first, the external wires are welded and fixed to external copper clips and copper inserts (copper sheets or copper pins), and then through the pressing members, they are fixed inside the female connector and the male connector to form the male head and female head of the electrical connector. Before installing the pressing member on the female connector, a rubber waterproof ring is sleeved. Then, when the female connector and the male connector are inserted, the copper insert is inserted into the copper clip, enabling the circuit to be connected, and the rubber waterproof ring in the female connector is pressed tightly against the inner side of the male connector, achieving a waterproof effect, facilitating assembly, and being convenient for waterproofing during use.

[0007] Preferably, the female connector includes a first housing, and the male connector includes a second housing. A first wiring hole is opened inside the first housing, and a second wiring hole is opened inside the second housing, and the number of the first wiring holes corresponds to that of the second wiring holes. One end of the external cable is inserted and fixed inside the first housing and the second housing through the first wiring hole and the second wiring hole respectively. Pressing plates are fixedly installed at the upper and lower ends of the inside of the first housing at the position of the first wiring hole and at the upper and lower ends of the inside of the second housing at the position of the second wiring hole. One end of the pressing member is pressed against the pressing plate. The number of both the first wiring holes and the second wiring holes is eight, and they are distributed in two upper and lower rows. When fixing the external wires, through the first wiring hole, it is convenient to fix the end of the wire with the copper clip inside the female connector, and through the second wiring hole, the end of the wire with the copper insert is fixed inside the male connector. And through the pressing plate, when installing the pressing member, the external cable is clamped inside the first housing and the second housing, facilitating fixation. When the first housing and the second housing are inserted into each other, the copper insert and the copper clip are inserted into each other, enabling the circuit to be connected.

[0008] Preferably, buckling holes are opened on one side of the pressing plates inside both the first housing and the second housing. The pressing members are buckled to the first housing and the second housing respectively through the buckling holes. Through the buckling holes, it is convenient to quickly install the pressing members inside the first housing and the second housing, facilitating the assembly of the external wires and being convenient for operation.

[0009] Preferably, the rubber waterproof ring is sleeved inside the first housing and is located on one side of the pressing member. The outer side of the rubber waterproof ring is of a corrugated structure, and the rubber waterproof ring is pressed against the inner side of the second housing. Through the corrugated rubber waterproof ring, when the outer side of the rubber waterproof ring is pressed against the inside of the second housing, a multi-layer waterproof effect is formed, improving the waterproof performance.

[0010] Preferably, guiding grooves are formed on both inner sides of the first housing, and guiding bars are fixedly installed on both outer sides of the second housing. The guiding bars are inserted into the guiding grooves. And a snap ring is fixedly installed at the lower end inside the first housing, and a snap claw is fixedly installed at the lower end of the second housing. The snap ring is buckled with the snap claw. Through the guiding grooves and the guiding bars, the accuracy of the connection between the second housing and the first housing is improved. And through the snap ring and the snap claw, when the connection is in place, the snap claw is buckled inside the snap ring, enabling the connection between the first housing and the second housing, and further enabling the connection between the female connector and the male connector, which is convenient for use.

[0011] Preferably, a plugging hole is formed between the first wiring holes on the upper and lower sides inside the first housing. The inside of the plugging hole is communicated with the first wiring holes. And a first elastic pressing member and a second elastic pressing member are respectively fixedly installed on both sides of the upper end and the lower end inside the plugging hole. One end of the first elastic pressing member and the second elastic pressing member on the opposite side is of a cut surface structure. A plug board is uniformly fixedly installed at the middle position inside the second housing. The plug board is in conformity with the plugging hole, and the plug board is inserted between the first elastic pressing member and the second elastic pressing member. Through the first elastic pressing member and the second elastic pressing member, when the female connector and the male connector are connected, the plug board is inserted into the plugging hole and gradually extends between the first elastic pressing member and the second elastic pressing member, causing the first elastic pressing member and the second elastic pressing member to deform. The distance between the first elastic pressing member and the second elastic pressing member increases, and one end of the first elastic pressing member enters into the upper first wiring hole, and one end of the second elastic pressing member enters into the lower first wiring hole, pressing one side of the copper clip, improving the clamping force of the copper clip on the copper plug, and further improving the electrical connection effect during use, avoiding the problem of poor contact, and improving the connection stability during use.

[0012] Preferably, a glue injection hole for injecting waterproof silica gel is formed at the upper end of the first housing, and an exhaust hole is formed at the lower end of the first housing on one side of the rubber waterproof ring. Through the glue injection hole, it is convenient to inject liquid silica gel solution into the gap position after the female connector and the male connector are connected. And after the silica gel solution solidifies, a new sealing gasket is formed, improving the sealing effect after the connection between the female connector and the male connector and improving the waterproof performance. And through the exhaust hole, not only is it convenient to discharge the gas inside the space during glue injection, but also by observing whether there is glue overflow at the position of the exhaust hole, it can be judged whether the glue injection is completed.

[0013] Preferably, a diversion groove is formed at the upper end of the second housing, and the position of the diversion groove corresponds to that of the glue injection hole. A sealing groove is formed at one end of the second housing, and the sealing groove is communicated with the diversion groove. A notch is formed at the lower end of the sealing groove, and the notch is communicated with the inside of the second housing. Through the diversion groove and the sealing groove, it is convenient for the liquid silicone to enter the inside of the sealing groove through the diversion groove after the liquid silicone is injected, so as to form a waterproof cushion layer made of silicone material between the first housing and the second housing. And through the notch, it is convenient for the liquid silicone to be squeezed into the annular gap between the end of the second housing and the rubber waterproof ring. And the inner side of the end of the second housing is a section structure, so as to form a second-layer waterproof cushion layer and improve the waterproof performance.

[0014] Preferably, an installation piece is fixedly installed at one end of the outer part of the second housing, and an installation hole is formed in the installation piece. Through the installation piece and the installation hole, it is convenient to install the technical solution on the external vehicle body.

[0015] Preferably, the pressing member includes a pressing housing. At the upper and lower ends on both sides inside the pressing housing, buckling members are fixedly installed, and the buckling members are buckled with the buckling holes. And at the upper and lower ends inside the pressing housing, fastening members are fixedly installed, and the fastening members press against the wire pressing plate. Through the buckling members, it is convenient to connect to the buckling holes on the first housing and the second housing, and it is convenient to install the pressing member. And through the fastening members, after installation, the fastening members abut against the wire pressing plate, causing the wire pressing plate to deform, and then pressing and fixing the end of the external wire, which is convenient for connecting to the external wire.

[0016] In summary, the beneficial effects of the present invention are as follows: 1. By adopting the pressing member, it is convenient to fix the cable end in the external circuit system on the female connector and the male connector, which is convenient for assembly, quick locking, can quickly fix the external cable end, is convenient for installing the technical solution and the cable in the vehicle's circuit system, eliminates the risk of wire rebound in the traditional crimping process, and improves the harness assembly efficiency and connection stability.

[0017] 2. By adopting the rubber waterproof ring, and the outer side of the rubber waterproof ring is a corrugated structure, this structure can compensate for the end face machining tolerance, realize 360° continuous sealing of the plugging interface, and then improve the sealing effect inside the female connector and the male connector after connection, and improve the waterproof grade.

[0018] 3. By adopting the glue injection hole, the sealing groove and the notch, it is convenient to inject liquid silicone at the internal interface position of the female connector and the male connector, and the liquid silicone forms an elastic sealing layer after curing, which can absorb the axial vibration displacement of ±0.3mm, and there is no interface peeling phenomenon after the thermal shock test of -40°C to 120°C, improving the waterproof performance.

[0019] 4. By adopting the first elastic pressure piece and the second elastic pressure piece, when making a connection, the plug-in board is inserted between the first elastic pressure piece and the second elastic pressure piece, and pressure is applied to one side of the external copper clip to achieve a double-pressure synergistic effect, which can effectively maintain the contact effect, reduce poor contact during long-term use, and improve connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall explosion structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention in an assembled state.

[0022] Figure 3 It is a schematic diagram of the overall structure of the present invention in a separated state.

[0023] Figure 4 It is a schematic diagram of the overall structure of the present invention in another angle separation state.

[0024] Figure 5 It is a schematic diagram of the overall structure of the present invention in a separated state after being turned over.

[0025] Figure 6 The present invention Figure 3 Schematic diagram of the structure at position A in the figure.

[0026] Figure 7 It is a schematic diagram of the structure of the present invention after the middle position is cut open in the assembled state.

[0027] Figure 8 It is a schematic structural diagram of the female connector of the present invention after being cut open along the middle position of the first wiring hole.

[0028] Figure 9 It is a structural schematic diagram of the pressing member in the present invention.

[0029] Description of reference numerals: 1. Female connector; 11. First housing; 12. First wiring hole; 13. Guide groove; 14. Buckle; 15. Plug hole; 16. First elastic pressing piece; 17. Second elastic pressing piece; 18. Glue injection hole; 19. Exhaust hole; 2. Sub-connector; 21. Second housing; 22. Second wiring hole; 23. Guide strip; 24. Claw; 25. Insert plate; 26. Guide groove; 27. Sealing groove; 28. Notch; 29. ​​Mounting sheet; 210. Mounting hole; 3. Rubber waterproof ring; 4. Compression piece; 41. Compression shell; 42. Fastening piece; 43. Fastener; 5. Wire pressing plate; 6. Button hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Specific embodiments are given below.

[0032] As Figures 1-9 shown, a vehicle electrical connector with excellent waterproof performance includes a female connector 1 and a male connector 2. The female connector 1 and the male connector 2 are respectively connected to external cables, and the female connector 1 is buckled with the male connector 2. A rubber waterproof ring 3 is sleeved inside the female connector 1, and the inner side of the male connector 2 is pressed against the rubber waterproof ring 3. Pressing members 4 are inserted into both the female connector 1 and the male connector 2. The external cables are fixed inside the female connector 1 and the male connector 2 through the pressing members 4. When in use, the wires that need to be connected in the external vehicle circuit system are respectively connected to the female connector 1 and the male connector 2. When connecting, first, the external wires are welded and fixed to external copper clips and copper inserts (copper sheets or copper pins), and then through the pressing members 4, they are fixed inside the female connector 1 and the male connector 2 to form the male and female heads of the electrical connector. Before installing the pressing member 4 on the female connector 1, the rubber waterproof ring 3 is sleeved. Then, when the female connector 1 and the male connector 2 are plugged together, the copper insert is plugged into the copper clip, so that the circuit is connected, and the rubber waterproof ring 3 in the female connector 1 is pressed against the inner side of the male connector 2, achieving a waterproof effect, facilitating assembly, and being convenient for waterproofing during use.

[0033] As Figure 4 and Figure 5As shown in the figure, the female connector 1 includes a first housing 11, and the male connector 2 includes a second housing 21. A first wiring hole 12 is formed inside the first housing 11, and a second wiring hole 22 is formed inside the second housing 21. The number of the first wiring holes 12 corresponds to that of the second wiring holes 22. One end of an external cable is inserted and fixed inside the first housing 11 and the second housing 21 respectively through the first wiring hole 12 and the second wiring hole 22. Pressure plates 5 are fixedly installed at the upper and lower ends of the inside of the first housing 11 at the positions of the first wiring holes 12 and at the upper and lower ends of the inside of the second housing 21 at the positions of the second wiring holes 22. One end of the pressing member 4 presses on the pressure plate 5. The number of both the first wiring holes 12 and the second wiring holes 22 is eight, and they are distributed in two upper and lower rows. When fixing the external wire, through the first wiring hole 12, it is convenient to fix the end of the wire with a copper clip inside the female connector 1. Through the second wiring hole 22, the end of the wire with a copper plug is fixed inside the male connector 2. And through the pressure plate 5, when installing the pressing member 4, the external cable is clamped inside the first housing 11 and the second housing 21, which is convenient for fixing. When the first housing 11 and the second housing 21 are plugged into each other, the copper plug and the copper clip are plugged into each other to make the circuit connected. Buckling holes 6 are formed on one side of the pressure plate 5 inside the first housing 11 and the second housing 21. The pressing member 4 is buckled to the first housing 11 and the second housing 21 respectively through the buckling holes 6. Through the buckling holes 6, it is convenient to quickly install the pressing member 4 inside the first housing 11 and the second housing 21, which is convenient for assembling the external wire and easy to operate. The rubber waterproof ring 3 is sleeved inside the first housing 11 and is located on one side of the pressing member 4. The outer side of the rubber waterproof ring 3 is of a corrugated structure, and the rubber waterproof ring 3 is pressed against the inner side of the second housing 21. Through the corrugated rubber waterproof ring 3, when the outer side of the rubber waterproof ring 3 is pressed against the inside of the second housing 21, a multi-layer waterproof effect is formed to improve the waterproof performance. And one end of the outside of the second housing 21 is fixedly installed with a mounting plate 29, and a mounting hole 210 is formed on the mounting plate 29. Through the mounting plate 29 and the mounting hole 210, it is convenient to install the technical solution on the external vehicle body. Guide grooves 13 are formed on both sides inside the first housing 11, and guide bars 23 are fixedly installed on both sides outside the second housing 21. The guide bars 23 are inserted into the guide grooves 13. And a retaining ring 14 is fixedly installed at the lower end inside the first housing 11, and a retaining claw 24 is fixedly installed at the lower end of the second housing 21. The retaining ring 14 is buckled to the retaining claw 24. Through the guide grooves 13 and the guide bars 23, the accuracy of the connection between the second housing 21 and the first housing 11 is improved. And through the retaining ring 14 and the retaining claw 24, when the connection is in place, the retaining claw 24 is buckled inside the retaining ring 14, so that the first housing 11 and the second housing 21 are connected, and then the female connector 1 and the male connector 2 are connected, which is convenient for use.

[0034] As Figures 5-8 shown, a plug hole 15 is formed between the first wiring holes 12 on the upper and lower sides inside the first housing 11. The inside of the plug hole 15 communicates with the first wiring holes 12. First elastic pressing members 16 and second elastic pressing members 17 are fixedly installed on both sides of the upper end and the lower end inside the plug hole 15 respectively. One end of the first elastic pressing member 16 and the second elastic pressing member 17 is a cut surface structure on the opposite side. A plurality of plug plates 25 are evenly fixedly installed at the middle position inside the second housing 21. The plug plates 25 are matched with the plug holes 15, and the plug plates 25 are inserted between the first elastic pressing members 16 and the second elastic pressing members 17. Through the first elastic pressing members 16 and the second elastic pressing members 17, when the female connector 1 and the male connector 2 are connected, the plug plates 25 are inserted into the plug holes 15 and gradually extend between the first elastic pressing members 16 and the second elastic pressing members 17, causing the first elastic pressing members 16 and the second elastic pressing members 17 to deform. The distance between the first elastic pressing members 16 and the second elastic pressing members 17 increases, and one end of the first elastic pressing member 16 enters the inside of the upper first wiring hole 12, and one end of the second elastic pressing member 17 enters the inside of the lower first wiring hole 12, pressing one side of the copper clip, improving the clamping force of the copper clip on the copper insert, thereby improving the electrical connection effect during use, avoiding the problem of poor contact, and improving the connection stability during use.

[0035] As Figure 6 and Figure 7As shown in the figure, an injection hole 18 for injecting waterproof silicone is provided at the upper end of the first housing 11, and an exhaust hole 19 is provided at the lower end of the first housing 11 on one side of the rubber waterproof ring 3. Through the injection hole 18, it is convenient to inject liquid silicone solution into the gap position after the female connector 1 and the male connector 2 are connected. After the silicone solution solidifies, a new gasket is formed, improving the sealing effect after the female connector 1 and the male connector 2 are connected and enhancing the waterproof performance. And through the exhaust hole 19, it is not only convenient to discharge the gas inside the space during injection, but also by observing whether there is silicone overflow at the position of the exhaust hole 19, it can be judged whether the injection is completed. A diversion groove 26 is provided at the upper end of the second housing 21, and the position of the diversion groove 26 corresponds to that of the injection hole 18. A sealing groove 27 is provided at one end of the second housing 21, and the sealing groove 27 is communicated with the diversion groove 26. A notch 28 is provided at the lower end of the sealing groove 27, and the notch 28 is communicated with the inside of the second housing 21. Through the diversion groove 26 and the sealing groove 27, it is convenient for the liquid silicone to enter the inside of the sealing groove 27 through the diversion groove 26 after the liquid silicone is injected, so as to form a waterproof cushion layer made of silicone material between the first housing 11 and the second housing 21. And through the notch 28, it is convenient for the liquid silicone to be squeezed into the annular gap between the end of the second housing 21 and the rubber waterproof ring 3. Moreover, the inner side of the end of the second housing 21 is a cut surface structure, forming a second waterproof cushion layer to improve the waterproof performance.

[0036] As Figure 9 shown, the pressing member 4 includes a pressing housing 41. At the upper and lower ends on both sides inside the pressing housing 41, buckling members 42 are fixedly installed, and the buckling members 42 are buckled with the buckling holes 6. And at the upper and lower ends inside the pressing housing 41, fastening members 43 are fixedly installed, and the fastening members 43 press against the wire pressing plate 5. Through the buckling members 42, it is convenient to be connected to the buckling holes 6 on the first housing 11 and the second housing 21, facilitating the installation of the pressing member 4. And through the fastening members 43, after installation, the fastening members 43 abut against the wire pressing plate 5, causing the wire pressing plate 5 to deform, and then pressing and fixing the end of the external wire, facilitating the connection of the external wire.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle electrical connector with excellent waterproof performance, characterized in that: It includes a female connector (1) and a male connector (2). The female connector (1) includes a first housing (11), and the male connector (2) includes a second housing (21). A first wiring hole (12) is provided inside the first housing (11). The female connector (1) and the male connector (2) are respectively connected to external cables, and the female connector (1) is buckled with the male connector (2). A rubber waterproof ring (3) is sleeved inside the female connector (1), and the inner side of the male connector (2) is pressed against the rubber waterproof ring (3). Pressing members (4) are inserted into both the female connector (1) and the male connector (2). The external cable is fixed inside the female connector (1) and the male connector (2) through the pressing members (4). An insertion hole (15) is provided between the first wiring holes (12) on the upper and lower sides inside the first housing (11). The inside of the insertion hole (15) is communicated with the first wiring hole (12), and a first elastic pressing member (16) and a second elastic pressing member (17) are respectively and fixedly installed on both sides of the upper end and the lower end inside the insertion hole (15). One end of the first elastic pressing member (16) and the second elastic pressing member (17) on the opposite side is a cut surface structure. A plug board (25) is uniformly and fixedly installed at the middle position inside the second housing (21). The plug board (25) is inserted between the first elastic pressing member (16) and the second elastic pressing member (17). A glue injection hole (18) for injecting waterproof silica gel is provided at the upper end of the first housing (11), and an exhaust hole (19) is provided at the lower end of the first housing (11) on one side of the rubber waterproof ring (3).

2. The vehicle electrical connector with excellent waterproof performance according to claim 1, wherein: A second wiring hole (22) is provided inside the second housing (21), and the number of the first wiring holes (12) corresponds to that of the second wiring holes (22). One end of the external cable is inserted and fixed inside the first housing (11) and the second housing (21) through the first wiring hole (12) and the second wiring hole (22) respectively. Pressing plates (5) are fixedly installed at the upper and lower ends inside the first housing (11) at the position of the first wiring hole (12) and at the upper and lower ends inside the second housing (21) at the position of the second wiring hole (22). One end of the pressing member (4) is pressed against the pressing plate (5).

3. The vehicle electrical connector with excellent waterproof performance according to claim 2, characterized in that: Buckling holes (6) are provided inside the first housing (11) and the second housing (21) on one side of the pressing plate (5). The pressing member (4) is buckled with the first housing (11) and the second housing (21) respectively through the buckling holes (6).

4. The vehicle electrical connector with excellent waterproof performance according to claim 1, characterized in that: The rubber waterproof ring (3) is sleeved inside the first housing (11) and is located on one side of the pressing member (4). The outer side of the rubber waterproof ring (3) is a corrugated structure, and the rubber waterproof ring (3) is pressed against the inner side of the second housing (21).

5. The vehicle electrical connector with excellent waterproof performance according to claim 1, wherein: On both inner sides of the first housing (11), guiding grooves (13) are formed. On both outer sides of the second housing (21), guiding strips (23) are fixedly installed. The guiding strips (23) are inserted into the guiding grooves (13). And at the lower end inside the first housing (11), a snap ring (14) is fixedly installed. At the lower end of the second housing (21), a snap claw (24) is fixedly installed. The snap ring (14) is snap-connected with the snap claw (24).

6. The vehicle electrical connector with excellent waterproof performance according to claim 3, characterized in that: At the upper end of the second housing (21), a diversion groove (26) is formed, and the position of the diversion groove (26) corresponds to that of the glue injection hole (18). At one end of the second housing (21), a sealing groove (27) is formed. The sealing groove (27) is communicated with the diversion groove (26). At the lower end of the sealing groove (27), a notch (28) is formed. The notch (28) is communicated with the inside of the second housing (21).

7. The vehicle electrical connector with excellent waterproof performance according to claim 6, characterized in that: At one outer end of the second housing (21), a mounting plate (29) is fixedly installed, and a mounting hole (210) is formed in the mounting plate (29).

8. The vehicle electrical connector with excellent waterproof performance according to claim 7, characterized in that: The pressing member (4) includes a pressing housing (41). At the upper and lower ends on both inner sides of the pressing housing (41), snap connectors (42) are fixedly installed. The snap connectors (42) are snap-connected with the snap holes (6). And at the upper and lower ends inside the pressing housing (41), fastening members (43) are fixedly installed. The fastening members (43) press against the wire pressing plate (5).

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