A waterproof new energy vehicle connector

Abstract

The present invention relates to the technical field of automotive connectors, and specifically relates to a waterproof new energy vehicle connector, which includes a housing body, and a connecting wire is conductively installed on one side of the housing body. For this waterproof new energy vehicle connector, when the outdoor temperature is relatively high, the heat generated by the connecting wire during power transmission increases. At this time, the heat is transferred to the inside of one side of the liquid injection cavity through the heat-conducting copper plate, causing the thermally expanding and contracting liquid inside the liquid injection cavity to expand due to heat. This squeezes the movement of the limiting seal block on one side. In cooperation with the conduction of the oil guide pipe and the one-way valve 1, the maintenance oil inside one side of the liquid injection cavity is thus squeezed into multiple limiting nozzles. Finally, the maintenance oil is evenly dripped onto the surface of the sealing ring through several limiting nozzles. It can automatically apply the maintenance oil on the surface of the sealing ring for maintenance during high-temperature use, increase the softness and anti-aging ability of the rubber, thereby delaying the aging of the sealing ring, ensuring the overall sealing use effect, and reducing the replacement frequency of the sealing ring.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive connectors, and particularly to a waterproof new energy vehicle connector. Background Art

[0002] Inside vehicles such as automobiles, in connectors used for connecting electrical components, in order to suppress the intrusion of water into the connector, a waterproof connector with a sealing member is sometimes used. The sealing member is configured as a molded body such as rubber and has an insertion hole into which a connector terminal can be inserted. A waterproof connector is formed by inserting a terminal wire with a connector terminal connected to the end of the wire into the insertion hole of the sealing member housed in the connector housing.

[0003] The waterproof sealing member in existing automotive connectors is generally a rubber sealing ring. During the outdoor use of the vehicle, the wire harness connector is exposed to the outdoor high-temperature environment for a long time. After the sealing ring inside the wire harness connector is used for a period of time, the external high temperature will cause the rubber sealing ring to become hard and brittle, resulting in aging, and ultimately leading to a decline in the sealing and waterproof performance. Summary of the Invention

[0004] The purpose of the present invention is to provide a waterproof new energy vehicle connector to solve the problem that after the sealing ring inside the wire harness connector is used for a period of time, the external high temperature will cause the rubber sealing ring to become hard and brittle, resulting in aging, and ultimately leading to a decline in the sealing and waterproof performance as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A waterproof new energy vehicle connector, including an outer housing, on one side of the outer housing, a connecting wire is conductively installed, in the middle position on the other side of the outer housing, a connecting head is fixed, and an inner conductor is installed inside the connecting head, and one end of the inner conductor is electrically connected to one end of the connecting wire. A sealing ring is sleeved through the outside of the connecting head near the connecting wire; a limiting mechanism is arranged between the connecting head and the sealing ring; an oiling mechanism is arranged inside one side of the outer housing, and the function of the oiling mechanism is to automatically apply maintenance oil on the surface of the sealing ring; a sealing mechanism is arranged outside one side of the outer housing near the sealing ring.

[0006] Further, the limiting mechanism includes a limiting ring and a limiting groove. The limiting ring is fixedly installed through the outer wall of the connecting head near the outer housing, and a limiting groove is embedded around the middle position of the outside of the limiting ring. One side outer surface of the sealing ring is abutted and clamped inside one side of the limiting groove.

[0007] Further, the limiting mechanism further includes a limiting nozzle. The limiting nozzle is installed around the outer part of the top end of the sealing ring at equal angles, and the limiting nozzle is arranged in an arc shape.

[0008] Further, the oiling mechanism includes an oil storage cavity, a liquid injection cavity and a limiting seal block. An oil storage cavity is preset in the inner part of one side of the outer shell in an embedded manner. A liquid injection cavity is preset in the inner part of the side of the outer shell close to the oil storage cavity in an embedded manner. A limiting seal block is installed in the liquid injection cavity in a sliding and sealing manner.

[0009] Further, the oiling mechanism further includes a heat-conducting copper plate, an oil guide pipe and a check valve I. A heat-conducting copper plate is installed through the inner part of the side of the liquid injection cavity close to the limiting seal block. One end of the heat-conducting copper plate is wrapped and attached to the outer part of one side of the connecting wire. A thermally expandable and contractible liquid is filled in the inner part of the side of the liquid injection cavity close to the heat-conducting copper plate. An oil guide pipe is installed through and communicated with the inner wall of the side of the liquid injection cavity far from the heat-conducting copper plate. A check valve I is installed through and communicated with the inner part of the side of the oil guide pipe close to the liquid injection cavity.

[0010] Further, the oiling mechanism further includes an oil inlet pipe and a check valve II. The input ends of the limiting nozzles are respectively connected and communicated with the output end of the oil guide pipe through branch pipes. An oil inlet pipe is installed through and communicated with the inner part of the side of the liquid injection cavity close to the oil guide pipe. A check valve II is installed through and communicated with the inner part of the side of the oil inlet pipe close to the liquid injection cavity. One end of the oil inlet pipe is installed through and communicated with the inner part of one side of the oil storage cavity.

[0011] Further, the oiling mechanism further includes a resisting spring, an oil injection port and a sealing plug. A resisting spring is fixed to the outer part of the side of the limiting seal block far from the heat-conducting copper plate, and the other end of the resisting spring is installed in the inner wall of one side of the liquid injection cavity in an embedded manner. An oil injection port is installed through and communicated between the inner part of one side of the oil storage cavity and the outer part of one side of the outer shell. A sealing plug is installed at the input end of the oil injection port.

[0012] Further, the sealing mechanism includes a limiting groove, a gas collecting cavity and a resisting ring. An annular limiting groove is preset in the inner part of the side of the outer shell close to the sealing ring. An annular gas collecting cavity is preset at the middle position of the bottom wall of the limiting groove. A resisting ring is installed in the annular gas collecting cavity in a sliding and sealing manner.

[0013] Further, the sealing mechanism further includes an air guide pipe and an expansion air bag. A plurality of groups of air guide pipes are installed through and symmetrically around the bottom wall of the annular gas collecting cavity at equal angles. Expansion air bags are respectively preset in an embedded and surrounding and fitting manner on the two inner walls of the annular limiting groove, and the output ends of two symmetrically installed air guide pipes in a group are respectively connected and communicated with the inner part of one side of the corresponding expansion air bag.

[0014] Furthermore, the sealing mechanism further includes a return spring. A number of return springs are installed around the bottom wall of the annular gas collecting chamber at equal angles, and the tops of the return springs are fixedly installed on the bottom wall of the abutting ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. When the outdoor temperature is relatively high, the heat generated by the power transmission of the connecting wire itself increases at this time. At this time, the heat is transferred to the inside of one side of the liquid injection cavity through the heat-conducting copper plate, so that the thermally expandable and contractible liquid inside the liquid injection cavity expands due to heat, thereby squeezing the limiting sealing block on one side to move. Cooperating with the conduction of the oil guide pipe and the one-way valve 1, the maintenance oil inside one side of the liquid injection cavity is squeezed into a plurality of limiting nozzles, and finally the maintenance oil is evenly dripped on the surface of the sealing ring through a number of limiting nozzles. Therefore, it can automatically apply the maintenance oil on the surface of the sealing ring for maintenance when used at high temperature, which can increase the softness and anti-aging ability of the rubber, thus delaying the aging of the sealing ring, ensuring the overall sealing use effect, reducing the replacement frequency of the sealing ring, and the overall use is convenient and convenient;

[0017] 2. During use, through the setting of the limiting ring and the limiting card slot, it can ensure that the sealing ring is more stable during installation, ensuring the accuracy of the installation position. At the same time, through the setting of a number of arc-shaped limiting nozzles installed around the top of the sealing ring near the limiting ring, during the process of inserting and disassembling the connector with the external connection port, it can avoid the situation that when the inner wall of the external connection port contacts and rubs against the outer wall of the sealing ring and moves, it drives the sealing ring to shake, tilt up and down or break away from the inside of the limiting card slot, resulting in the misalignment or loss of the position of the sealing ring, ensuring the subsequent sealing and waterproof effect of the sealing ring, and the overall use effect is good;

[0018] 3. When the external connection port is inserted into the connector, when the insertion end of the external connection port abuts against the abutting ring inside the limiting slot and continues to move for insertion, at this time, the abutting ring will move into the gas collecting chamber, so that the abutting ring squeezes the gas inside the gas collecting chamber into the expansion air bags on the inner walls on both sides of the limiting slot, so that the two expansion air bags expand synchronously and abut and fit tightly with the inner wall and the outer wall of the opening end of the external connection port for sealing, so that the connector as a whole has a secondary sealing effect, making the overall waterproof and sealing effect better. At the same time, when the external connection port and the connector are disassembled and moved back, the return spring drives the abutting ring to rebound, thereby sucking back the gas inside the expansion air bag, so that the outer wall of the expansion air bag will not tightly adhere to the surface of the external connection port when pulled out, reducing frictional damage and extending the service life of the expansion air bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the connector of the present invention;

[0020] Figure 2Schematic diagram of the overall partial sectional three-dimensional structure of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the limiting mechanism and the connector of the present invention;

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at position A in the present invention;

[0023] Figure 5 Schematic diagram of the front view structure of the installation of the sealing ring and the limiting ring of the present invention;

[0024] Figure 6 Schematic diagram of the three-dimensional structure of the oiling mechanism and the outer housing of the present invention;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at position B in the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the installation of the oil inlet pipe and the check valve II of the present invention;

[0027] Figure 9 Schematic diagram of the partial sectional three-dimensional structure of the installation of the sealing mechanism and the outer housing of the present invention;

[0028] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at position C in the present invention;

[0029] Figure 11 Schematic diagram of the demonstration of the insertion of the connector and the external port of the present invention.

[0030] In the figure: 1. Outer housing; 2. Connecting wire; 3. Connector; 4. Inner conductor; 5. Sealing ring; 6. Limiting mechanism; 601. Limiting ring; 602. Limiting groove; 603. Limiting nozzle; 7. Oiling mechanism; 701. Oil storage cavity; 702. Liquid injection cavity; 703. Heat conducting copper plate; 704. Limiting seal block; 705. Oil guide pipe; 706. Check valve I; 707. Oil inlet pipe; 708. Check valve II; 709. Resisting spring; 7010. Oil injection port; 7011. Sealing plug; 8. Sealing mechanism; 801. Limiting groove; 802. Gas collecting cavity; 803. Resisting ring; 804. Air guide pipe; 805. Expanding air bag; 806. Return spring. Detailed implementation manners

[0031] 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 creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1-11 , the present invention provides a technical solution: a waterproof new energy vehicle connector, including a housing 1, a connecting wire 2 is conductively installed on one side of the housing 1, a connector 3 is fixed at the middle position on the other side of the housing 1, and an inner conductor 4 is installed inside the connector 3, and one end of the inner conductor 4 is electrically connected to one end of the connecting wire 2. A sealing ring 5 is sleeved through the outside of the connector 3 near the connecting wire 2; a limiting mechanism 6 is arranged between the connector 3 and the sealing ring 5; an oiling mechanism 7 is arranged inside one side of the housing 1, and the function of the oiling mechanism 7 is to automatically apply maintenance oil on the surface of the sealing ring 5; a sealing mechanism 8 is arranged outside one side of the housing 1 near the sealing ring 5.

[0033] In this embodiment, the waterproof new energy vehicle connector mainly includes a housing 1, a connector 3, a limiting mechanism 6, an oiling mechanism 7 and a sealing mechanism 8. Among them, when the waterproof new energy vehicle connector provided in this solution is actually used, first align the connector with the external connection port to be plugged in outside, and then perform the plugging. During the plugging process, through the setting of the sealing ring 5, the plugging gap between the two is sealed. When the plugging is completed, through the triggering operation of the sealing mechanism 8, the inner wall and the outer wall of the open end of the external connection port are secondarily abutted and sealed, so that the overall waterproof sealing effect is better. During the plugging process, through the setting of the limiting mechanism 6, the installation stability of the sealing ring 5 can be ensured, and it is ensured that the sealing ring 5 will not be displaced or taken out and lost during the plugging process, and the overall use effect is good.

[0034] When the outdoor temperature is relatively high, at this time, the heat generated by the connecting wire 2 during power transmission increases. At this time, through the automatic triggering of the oiling mechanism 7 by heat, the maintenance oil can be automatically applied to the surface of the sealing ring 5 for maintenance during high-temperature use, so as to increase the softness and anti-aging ability of the rubber, thereby delaying the aging of the sealing ring 5, ensuring the overall sealing use effect, reducing the replacement frequency of the sealing ring 5, and the overall use is convenient.

[0035] In some embodiments, the limiting mechanism 6 includes a limiting ring 601 and a limiting groove 602. The limiting ring 601 is fixedly installed through the outer wall of the connector 3 close to the outer housing 1. The limiting groove 602 is embedded around the middle position of the outside of the limiting ring 601. The outer surface of one side of the sealing ring 5 is abutted and installed inside one side of the limiting groove 602. The limiting mechanism 6 further includes a limiting nozzle 603. The limiting nozzles 603 are installed around the top of the limiting ring 601 close to the sealing ring 5 at equal angles, and the limiting nozzles 603 are arranged in an arc shape.

[0036] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, when the device is plugged in and used, through the settings of the limiting ring 601 and the limiting groove 602, it can ensure that the sealing ring 5 is more stable during installation and ensure the accuracy of the installation position.

[0037] At the same time, during use, through the setting of a number of arc-shaped limiting nozzles 603 installed around the top of the limiting ring 601 close to the sealing ring 5 at equal angles, when the connector is plugged in and disassembled from the external connection port, it can avoid the situation where the inner wall of the external connection port contacts and rubs against the outer wall of the sealing ring 5 and drives the sealing ring 5 to shake, tilt or fall out of the inside of the limiting groove 602, resulting in the misalignment or loss of the position of the sealing ring 5. Combined with Figure 5 As shown, it can ensure the subsequent sealing and waterproof effect of the sealing ring 5, and the overall use effect is good.

[0038] In some embodiments, the oiling mechanism 7 includes an oil storage chamber 701, a liquid injection chamber 702, and a limit sealing block 704. An oil storage chamber 701 is preset in the inner side of one side of the outer housing 1 in an embedded manner, and a liquid injection chamber 702 is preset in the inner side of the outer housing 1 close to the oil storage chamber 701 in an embedded manner. A limit sealing block 704 is installed in the liquid injection chamber 702 in a sliding and sealing manner; the oiling mechanism 7 further includes a heat-conducting copper plate 703, an oil guide pipe 705, and a check valve 706. A heat-conducting copper plate 703 is installed through the inner side of the liquid injection chamber 702 close to the limit sealing block 704. One end of the heat-conducting copper plate 703 is wrapped and attached to the outer side of one side of the connecting wire 2. A thermally expandable and contractible liquid is filled in the inner side of the liquid injection chamber 702 close to the heat-conducting copper plate 703. An oil guide pipe 705 is installed through and communicated with the inner wall of the liquid injection chamber 702 far from the heat-conducting copper plate 703. A check valve 706 is installed through and communicated with the inner side of the oil guide pipe 705 close to the liquid injection chamber 702; the oiling mechanism 7 further includes an oil inlet pipe 707 and a check valve 708. The input ends of the limit nozzles 603 are all connected and communicated with the output end of the oil guide pipe 705 through branch pipes. An oil inlet pipe 707 is installed through and communicated with the inner side of the liquid injection chamber 702 close to the oil guide pipe 705. A check valve 708 is installed through and communicated with the inner side of the oil inlet pipe 707 close to the liquid injection chamber 702. One end of the oil inlet pipe 707 is installed through and communicated with the inner side of one side of the oil storage chamber 701.

[0039] Combined Figure 6 、 Figure 7 and Figure 8 As shown, when the outdoor temperature is relatively high, the heat generated by the connecting wire 2 itself increases during power transmission. At this time, the heat generated by the connecting wire 2 itself is transferred to the inner side of one side of the liquid injection chamber 702 through the heat-conducting copper plate 703, so that the thermally expandable and contractible liquid in the liquid injection chamber 702 expands due to heat. Thereby, it squeezes the limit sealing block 704 on one side to move, so as to squeeze the maintenance oil previously sucked into the liquid injection chamber 702 into the inner parts of the check valve 706 and the oil guide pipe 705. Through the conduction installation of the oil guide pipe 705 and the limit nozzles 603, the maintenance oil on one side of the liquid injection chamber 702 is squeezed into a plurality of limit nozzles 603. Finally, the maintenance oil is evenly dripped on the surface of the sealing ring 5 through several limit nozzles 603, so that the maintenance oil can be automatically applied to the surface of the sealing ring 5 for maintenance when used at high temperature, thereby increasing the softness and anti-aging ability of the rubber, delaying the aging of the sealing ring 5, ensuring the overall sealing use effect, reducing the replacement frequency of the sealing ring 5, and being convenient and convenient for overall use.

[0040] In some embodiments, the oiling mechanism 7 also includes a resistance spring 709, an oil filling port 7010 and a sealing plug 7011. A resistance spring 709 is fixed to the outside of the side of the limiting sealing block 704 away from the heat-conducting copper plate 703, and the other end of the resistance spring 709 is embedded on the inner wall of one side of the liquid injection cavity 702. The oil filling port 7010 is installed through the inside of one side of the oil storage cavity 701 and the outside of one side of the outer shell 1, and the input end of the oil filling port 7010 is installed with a sealing plug 7011.

[0041] Combination Figure 7 and Figure 8 As shown, when the outside temperature drops, the thermal expansion and contraction liquid inside the injection chamber 702 begins to cool down and contract, and cooperates with the rebound reset of the resistance spring 709, thereby driving the limit seal block 704 to start moving back. During the moving back process, the limit seal block 704 is installed through the oil inlet pipe 707 and the one-way valve 708, so that the maintenance oil previously stored in the oil storage chamber 701 is sucked into one side of the injection chamber 702, ensuring that it can be triggered for secondary extrusion and use later. The whole device can automatically extrude and apply the maintenance oil and suck it for standby use, and the overall use effect is good. At the same time, when the device is repaired, the sealing plug 7011 on one side can be opened, and the maintenance oil can be stored in the oil storage chamber 701 through the oil filling port 7010. The operation is simple and convenient to use.

[0042] At the same time, by setting the one-way valve 1 706 and the one-way valve 2 708, the limit seal block 704 will not squeeze the maintenance oil inside the injection chamber 702 into the oil storage chamber 701 when it is squeezed and moved. At the same time, it can also ensure that the limit seal block 704 will not suck the stored oil inside the oil guide pipe 705 when it moves back for absorption, thereby ensuring the overall operation stability.

[0043] In some embodiments, the sealing mechanism 8 includes a limiting groove 801, an air collecting cavity 802 and a resistance ring 803. An annular limiting groove 801 is embedded in the inner part of the outer shell 1 close to the sealing ring 5, and an annular air collecting cavity 802 is embedded in the middle position of the bottom wall of the limiting groove 801. The internal sliding seal of the annular air collecting cavity 802 is installed with a resistance ring 803; the sealing mechanism 8 also includes an air guide tube 804 and an expansion air bag 805. Several groups of air guide tubes 804 are symmetrically installed at equal angles on the bottom wall of the annular air collecting cavity 802. Expansion air bags 805 are embedded and fitted on the inner walls on both sides of the annular limiting groove 801, and the output ends of a group of two symmetrically installed air guide tubes 804 are respectively connected to the inside of one side of the expansion air bag 805 on the corresponding side.

[0044] Combination Figure 9 and Figure 10As shown, when plugging into the connector, when the plug end of the external port abuts against the abutting ring 803 inside the limiting groove 801 and continues to move for plugging, at this time, the abutting ring 803 will be abutted by the plug end of the external port and move into the inside of the air collecting cavity 802, so that the abutting ring 803 squeezes the gas inside the air collecting cavity 802 into the inside of the air guide pipe 804, and through the conduction of the air guide pipe 804, the gas is squeezed into the expansion air bags 805 on the inner walls on both sides of the limiting groove 801 and combined Figure 11 As shown, so that the expansion air bags 805 on both sides expand synchronously and abut and fit tightly against the inner wall and the outer wall of the opening end of the external port, so that the connector as a whole has the effect of secondary sealing, making the overall waterproof and sealing effect better.

[0045] In some embodiments, the sealing mechanism 8 further includes a return spring 806. A plurality of return springs 806 are installed around the bottom wall of the annular air collecting cavity 802 at equal angles, and the top ends of the return springs 806 are fixedly installed on the bottom wall of the abutting ring 803.

[0046] Combined Figure 10 and Figure 11 As shown, when the external port is disassembled and moved back from the connector, the abutting ring 803 is no longer abutted by the plug end of the external port and begins to move back. At this time, the return spring 806 drives the abutting ring 803 to start rebounding and moving, so as to draw the gas inside the expansion air bag 805 back into the inside of the annular air collecting cavity 802, so that when the external port is disassembled and pulled out from the connector, the outer wall of the expansion air bag 805 will not tightly fit against the surface of the external port, reducing frictional damage and prolonging the service life of the expansion air bag 805.

[0047] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0048] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof new energy vehicle connector, comprising a housing (1), characterized in that: A connecting wire (2) is conductively installed on one side of the outer housing (1). A connector (3) is fixed at the middle position on the other side of the outer housing (1), and an inner conductor (4) is installed inside the connector (3). One end of the inner conductor (4) is electrically connected to one end of the connecting wire (2). A sealing ring (5) is sleeved through the outside of one side of the connector (3) close to the connecting wire (2); A limiting mechanism (6), which is arranged between the connector (3) and the sealing ring (5); An oiling mechanism (7), which is arranged inside one side of the outer housing (1). The function of the oiling mechanism (7) is to automatically apply maintenance oil on the surface of the sealing ring (5); A sealing mechanism (8), which is arranged outside one side of the outer housing (1) close to the sealing ring (5); The limiting mechanism (6) includes a limiting ring (601) and a limiting groove (602). The limiting ring (601) is fixedly installed through the outer wall of one side of the connector (3) close to the outer housing (1). The limiting groove (602) is embedded and arranged around the middle position of the outside of the limiting ring (601). One side outer surface of the sealing ring (5) is abutted and clamped inside one side of the limiting groove (602); The limiting mechanism (6) further includes a limiting nozzle (603). The limiting nozzle (603) is installed around the top outside of the limiting ring (601) close to the sealing ring (5) at equal angles, and the limiting nozzle (603) is arranged in an arc shape; The oiling mechanism (7) includes an oil storage cavity (701), a liquid injection cavity (702) and a limiting sealing block (704). The oil storage cavity (701) is pre-embedded inside one side of the outer housing (1). The liquid injection cavity (702) is pre-embedded inside one side of the outer housing (1) close to the oil storage cavity (701). The limiting sealing block (704) is installed in the liquid injection cavity (702) in a sliding and sealing manner; The oiling mechanism (7) further includes a heat-conducting copper plate (703), an oil guide pipe (705) and a check valve I (706). The heat-conducting copper plate (703) is installed through the inside of one side of the liquid injection cavity (702) close to the limiting sealing block (704). One end of the heat-conducting copper plate (703) is wrapped and attached to the outside of one side of the connecting wire (2). A thermally expandable and contractible liquid is filled inside one side of the liquid injection cavity (702) close to the heat-conducting copper plate (703). The oil guide pipe (705) is installed through and conducted on the inner wall of one side of the liquid injection cavity (702) far from the heat-conducting copper plate (703). The check valve I (706) is installed through and conducted on the inside of one side of the oil guide pipe (705) close to the liquid injection cavity (702); The input ends of the limiting nozzles (603) are all connected and conducted through branch pipes to the output end of the oil guide pipe (705).

2. The waterproof new energy vehicle connector according to claim 1, characterized in that: The oiling mechanism (7) further comprises a resisting spring (709), an oil filling port (7010) and a sealing plug (7011); a resisting spring (709) is fixed to the outside of the side of the limiting sealing block (704) away from the heat-conducting copper plate (703), and the other end of the resisting spring (709) is embedded in an inner wall of one side of the liquid filling cavity (702); an oil filling port (7010) is installed through the inside of one side of the oil storage cavity (701) and the outside of one side of the outer shell (1); and a sealing plug (7011) is installed at the input end of the oil filling port (7010).

3. A waterproof new energy vehicle connector according to claim 1, characterized in that: The sealing mechanism (8) comprises an annular limiting groove (801), an annular gas collecting cavity (802) and a resistance ring (803); an annular limiting groove (801) is embedded in the inner part of the outer shell (1) on a side close to the sealing ring (5); an annular gas collecting cavity (802) is embedded in the middle position of the bottom wall of the annular limiting groove (801); and a resistance ring (803) is installed in the internal sliding seal of the annular gas collecting cavity (802).

4. The waterproof new energy vehicle connector according to claim 3, wherein: The sealing mechanism (8) further comprises an air guide tube (804) and an expansion air bag (805); a plurality of groups of air guide tubes (804) are symmetrically installed on the bottom wall of the annular air collecting cavity (802) at equal angles and around and through the bottom wall; an expansion air bag (805) is embedded and arranged around and in close contact with the inner walls on both sides of the annular limiting groove (801); and the output ends of a group of two symmetrically installed air guide tubes (804) are respectively connected to the inside of one side of the expansion air bag (805) on the corresponding side.

5. The waterproof new energy vehicle connector according to claim 4, characterized in that: The sealing mechanism (8) further comprises a return spring (806), and a plurality of return springs (806) are mounted at equal angles around the bottom wall of the annular air collecting cavity (802), and the top ends of the return springs (806) are fixedly mounted on the bottom wall of the abutment ring (803).

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