CN209921090U

CN209921090U - Spiral connector liquid cooling structure and connector

Info

Publication number: CN209921090U
Application number: CN201920539030.8U
Authority: CN
Inventors: 徐平安; 林培燕; 黄建芳; 林国军
Original assignee: Shenzhen Busbar Sci Tech Development Co Ltd
Current assignee: Shenzhen Busbar Sci Tech Development Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-10
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses a spiral connector liquid cooling structure and connector, spiral connector liquid cooling structure includes the rubber core and seals the jack terminal that is used for being connected with the cable of wearing to locate in the rubber core, the periphery of jack terminal is equipped with the helicla flute that is used for the cooling medium to flow, the rear end of rubber core is equipped with the feed liquor hole and the play liquid hole that communicate with the both ends of helicla flute respectively; an aluminum sleeve sleeved outside the jack terminal is arranged between the rubber core and the jack terminal, and the aluminum sleeve is provided with through holes at positions corresponding to the liquid inlet hole and the liquid outlet hole; the periphery of jack terminal still overlaps and is equipped with two and arranges in respectively the first sealing washer in the helicla flute both ends outside, the periphery of first sealing washer with the inner wall butt of aluminium cover. The utility model discloses the heat dispersion of structure is good to have simple structure, compact, safe and reliable and equipment convenient characteristics.

Description

Spiral connector liquid cooling structure and connector

Technical Field

The utility model relates to a connector field especially relates to a spiral connector liquid cooling structure and connector.

Background

As electric automobiles are increasingly popularized, charging equipment for vehicles of the type has become a core technology of the industry; the charging connector of the electric automobile is an important component of charging equipment, when the electric automobile is charged for a long time, the charging connecting terminal generates certain heat due to a large charging current ratio, the original charging connector is compact in structural arrangement, heat dissipation is not easy, the assembly is inconvenient, and if long-time charging work is carried out, the contact resistance of the charging connecting terminal is increased, temperature rise is increased, and the performance of the terminal is affected; the continuous heating can also cause the aging of the plastic part, and finally can cause the hidden trouble of burning the charging connector; therefore, the heat dissipation problem of the charging connection terminal is urgently needed to be solved in the market, however, with the continuous development of new energy automobiles, the natural heat dissipation of the existing charging connection terminal cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned current technical defect, provide a spiral connector liquid cooling structure that heat dispersion is good, have simple structure, compactness, safe and reliable and equipment convenient characteristics.

In order to solve the technical problem, the utility model provides a liquid cooling structure of a spiral connector, which comprises a rubber core and a jack terminal which is arranged in the rubber core in a sealing and penetrating way and is used for being connected with a cable, wherein the periphery of the jack terminal is provided with a spiral groove used for flowing of a cooling medium, and the rear end of the rubber core is provided with a liquid inlet hole and a liquid outlet hole which are respectively communicated with the two ends of the spiral groove; an aluminum sleeve sleeved outside the jack terminal is arranged between the rubber core and the jack terminal, and the aluminum sleeve is provided with through holes at positions corresponding to the liquid inlet hole and the liquid outlet hole; the periphery of jack terminal still overlaps and is equipped with two and arranges in respectively the first sealing washer in the helicla flute both ends outside, the periphery of first sealing washer with the inner wall butt of aluminium cover.

Further, be equipped with the through-hole that runs through around two in the gluey core, all be equipped with in two through-holes aluminium cover and jack terminal, the front end of gluing the core is equipped with the discharge orifice of crossing of two through-holes of intercommunication, also be equipped with the perforation in the position department that corresponds the discharge orifice on the aluminium cover, two helicla flute one end in the jack terminal respectively with feed liquor hole and play liquid hole intercommunication, the other end all with cross the discharge orifice intercommunication.

Furthermore, the periphery of the jack terminal is also provided with two first grooves which are respectively arranged at the outer sides of the two ends of the spiral groove, and the first sealing ring is sleeved in the first grooves; the periphery of the through hole is provided with a second groove, a second sealing ring is sleeved in the second groove, and the outer side of the second sealing ring is abutted to the inner wall of the through hole.

Furthermore, a first fastener is arranged at the rear end of the rubber core, a flange inserted into the through hole is arranged at the front end of the first fastener in a forward extending mode, and the front end face of the flange is abutted to the rear end face of the aluminum sleeve; and a stopping part which radially extends inwards and is used for being matched with the aluminum sleeve and the jack terminal is arranged at the hole opening at the front end of the through hole.

Furthermore, the first fastening piece comprises an upper buckling plate and a lower buckling plate which are buckled with each other, and the opposite surfaces of the upper buckling plate and the lower buckling plate are provided with semicircular grooves at positions corresponding to the two jack terminals; the buckle is arranged on each of two sides of the upper buckle plate, the buckling parts extending forwards are arranged on each of two sides of the lower buckle plate, and the buckling parts are provided with clamping grooves matched with the buckles; the upper buckle plate and the lower buckle plate are both fixed with the rubber core through screws; a raised positioning column is arranged in the middle of the lower end of the upper pinch plate, and a positioning groove matched with the positioning column is arranged in the middle of the upper end of the lower pinch plate; the rear ends of the upper pinch plate and the lower pinch plate are respectively provided with at least one clamping hook extending outwards.

Furthermore, a steel chain type watchband-shaped reed is arranged in the plug hole at the front end of the jack terminal; the liquid inlet and the liquid outlet are both arranged at the upper end or the lower end of the rubber core and are arranged in a bilateral symmetry manner.

The connector comprises the spiral connector liquid cooling structure, a plug shell and a socket shell which are mutually inserted, the spiral connector liquid cooling structure is clamped at the front end of the plug shell, the rear end of the jack terminal is connected with a cable penetrating through the plug shell, and two adapters which are respectively communicated with the liquid inlet and the liquid outlet are arranged on the plug shell; and a contact pin inserted with the jack terminal is arranged in the socket shell.

Furthermore, a gasket and a first waterproof ring are sequentially sleeved on the cable from inside to outside, the periphery of the first waterproof ring is abutted against the inner wall of the plug shell, and a stop step located on the inner side of the gasket is arranged at the rear end of the plug shell; the outer side of the cable is further sleeved with a tail buckle, and the tail buckle is buckled at the tail end of the plug shell.

Furthermore, the adapter is right-angled, one end of the adapter is in threaded connection with the plug shell, sawtooth grains are arranged on the periphery of the other end of the adapter, a hose is sleeved at one end, provided with the sawtooth grains, of the adapter, a second fastener is sleeved at the joint of the hose and the adapter, the second fastener comprises an upper pressing plate and a lower pressing plate which are mutually fixed through screws, grooves are formed in the positions, corresponding to the adapter, of the opposite surfaces of the upper pressing plate and the lower pressing plate, and one end of the upper pressing plate is further fixedly connected with the plug shell through the screws; the two sides of the upper end of the lower pressing plate are provided with positioning holes, and the lower end of the upper pressing plate is provided with positioning salient points matched with the positioning holes.

Furthermore, a jack catch is arranged in the socket shell, a positioning seat is arranged on the contact pin, a conical groove clamped with the jack catch is arranged on the positioning seat, a plurality of positioning clamping grooves are arranged on the front end face of the positioning seat, and a positioning retaining buckle clamped with the positioning clamping grooves is arranged in the socket shell.

The utility model discloses following beneficial effect has:

the utility model discloses a set up the helicla flute in jack terminal periphery, when cooling medium flowed on the ring channel like this, cooling medium will generate heat the position (reed department) and wrap up totally, can make cooling medium infuse whole jack terminal surface along the helicla flute, utilize the mobility of cooling medium to take away the heat on jack terminal surface fast, reach the purpose of cooling down, the cooling effect is good, the performance of jack terminal has been guaranteed, and cooperate the fixed action of first fastener, make this jack structure can all work stably in harsh environment; the reed is in a steel chain type watch band shape, deformation elasticity is fast recovered, heat conductivity is good, plugging and unplugging are resistant, the aluminum sleeve and the jack terminal are compressed through the first fastening piece, connection reliability of the jack structure is improved, assembling is convenient, the first fastening piece is divided into an upper buckle plate and a lower buckle plate which are buckled with each other up and down, installation of the fastening piece is convenient, and alignment, insertion, locking and fixing of the upper buckle plate and the lower buckle plate are facilitated through matching of positioning columns and positioning grooves which are respectively arranged on the upper buckle plate and the lower buckle plate; additionally the utility model provides a connector that contains spiral connector liquid cooling structure has the characteristics that the heat dissipation is good, simple structure, compactness, safe and reliable and low cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:

FIG. 1 is an exploded view of the liquid cooling structure of the screw connector of the embodiment;

FIG. 2 is a cross-sectional view of a liquid cooling structure of the screw connector of the embodiment at an inlet port;

FIG. 3 is a top perspective view of a liquid cooling structure of the screw connector of the embodiment;

FIG. 4 is a schematic view of a receptacle terminal of an embodiment;

FIG. 5 is a schematic view of a reed according to the embodiment;

FIG. 6 is a schematic view of an aluminum jacket in an embodiment;

FIG. 7 is a schematic view of a first fastener of an embodiment;

FIG. 8 is a schematic view of a transfer joint in example 2;

FIG. 9 is a schematic view of a pin according to embodiment 2;

FIG. 10 is a schematic view of a second fastener according to embodiment 2;

fig. 11 is a top view of the connector of embodiment 2;

FIG. 12 is a sectional view of the connector of embodiment 2;

FIG. 13 is a sectional view at the part of the socket housing in embodiment 2;

FIG. 14 is a schematic view of a socket housing according to embodiment 2;

fig. 15 is an exploded view of the connector in embodiment 2.

Detailed Description

For a fuller understanding of the technical content of the present invention, the present invention will be further described and illustrated with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 to 7, a liquid cooling structure 100 of a spiral connector shown in this embodiment includes a rubber core 1 and two jack terminals 2 hermetically penetrating through the rubber core 1 for connecting with a cable, two through holes 11 penetrating through the rubber core 1 from front to back are provided in the rubber core 1, the two jack terminals 2 are respectively provided in the two through holes 11, and an overflowing hole 12 communicating the two through holes 11 is provided at a front end of the rubber core 1; the front end of the jack terminal 2 is provided with a plug-in hole 21 for inserting a plug pin, a reed 22 is clamped in the plug-in hole 21, the periphery of the jack terminal 2 is provided with a spiral groove 23 for flowing of a cooling medium, the rear end of the rubber core 1 is provided with a liquid inlet hole 13 and a liquid outlet hole 14 which are respectively communicated with one end of the spiral grooves in the two jack terminals 2, the liquid inlet hole 13 and the liquid outlet hole 14 are respectively arranged at the upper end or the lower end of the rubber core 1 and are arranged in bilateral symmetry, the other ends of the spiral grooves in the two jack terminals 2 are respectively communicated with the overflowing hole 12, so that the spiral grooves in the two jack terminals 2 are matched with the liquid inlet hole and the liquid outlet hole to form a flowing channel which is communicated front and back and flows in sequence, the cooling medium flows into the spiral groove in one jack terminal from the liquid inlet hole and then flows into the spiral groove of the other jack; an aluminum sleeve 3 sleeved outside the jack terminals 2 is arranged between the rubber core 1 and the two jack terminals 2, and through holes 31 for circulation of cooling media are arranged at positions, corresponding to the liquid inlet hole 13, the liquid outlet hole 14 and the overflowing hole 12, on the aluminum sleeve 3; the periphery of jack terminal 2 still overlaps and is equipped with two first sealing washer 24 of arranging the helicla flute 23 both ends outside in respectively, and interference fit butt is passed through with the inner wall of aluminium cover 3 in the periphery of first sealing washer 24, makes helicla flute 23 be located between two first sealing washers 24, ensures the leakproofness between aluminium cover 3 and jack terminal 2, prevents that cooling medium from leaking between jack terminal and the aluminium cover.

The periphery of the jack terminal 2 is also provided with two annular first grooves 25 which are respectively arranged at the outer sides of the two ends of the spiral groove 23, and a first sealing ring 24 is sleeved in the first grooves 25; the periphery that is located perforation 12 in the outside of aluminium cover 3 is equipped with second recess 32, and second recess 32 endotheca is equipped with second sealing washer 33, and the outside of second sealing washer 33 passes through interference fit butt with the inner wall of through-hole 11, makes the gluey core of feed liquor hole, play liquid hole and overflow hole department sealed with the aluminium cover, prevents that coolant from leaking between gluey core and the aluminium cover.

The rear end of the rubber core 1 is provided with a first fastening piece 4 for fixing the jack terminal 2, the front end of the first fastening piece 4 extends forwards to be provided with two flanges 41 which are respectively inserted into the two through holes 11, the front end surface of each flange 41 is abutted against the rear end surface of the aluminum sleeve 3, a stopping part 111 which extends inwards and radially is arranged at the hole opening of the front end of each through hole 11, the stopping part 111 is used for being matched with the aluminum sleeve 4 and the jack terminal 3 so as to play a role of stopping the forward movement of the aluminum sleeve 4 and the jack terminal, and the hole diameter in the middle of the stopping part 111 is the same as that of the jack; in the aforesaid, through the cooperation of first fastener and backstop portion, fix aluminium cover and jack terminal in the through-hole to injecing the back-and-forth movement of aluminium cover and jack terminal, and whole equipment is convenient, need not use the jack catch to fix aluminium cover and jack terminal in the through-hole, has reduced the degree of difficulty that brings because of the equipment jack catch.

The first fastener 4 comprises an upper buckle plate 42 and a lower buckle plate 43 which are buckled with each other, the flange 41 is respectively arranged in the upper buckle plate 42 and the lower buckle plate 43 and is respectively half-folded, the positions of the opposite surfaces of the upper buckle plate 42 and the lower buckle plate 43, which correspond to the two jack terminals 2, are respectively provided with a semi-circular groove 44, the two opposite semi-circular grooves are assembled to form a circular hole for clamping the rear end of the jack terminal, and in practical application, the aperture of the circular hole is smaller than the outer diameter of the rear end of the jack terminal, so that the first fastener and the jack terminal are clamped and fixed in an interference fit manner; in the aforesaid, divide into the last buckle and the lower buckle of upper and lower two parts with first fastener, the installation of the fastener of being convenient for to make aluminium cover and jack terminal both inwards push up tightly and the tight mode of clamp through the fastener and glue the core and fix, guarantee steadiness and reliability after the equipment connection, avoid appearing not hard up the condition, make this jack structure all can stable work in harsh environment.

The buckle 421 is arranged on both sides of the upper buckle plate 42, the buckling parts 431 extending forwards are arranged on both sides of the lower buckle plate 43, and the buckling parts 431 are provided with clamping grooves 432 matched with the buckle 421; the upper pinch plate 42 and the lower pinch plate 43 are both fixed with the rear end face of the rubber core 1 through screws 45; a raised positioning column 422 is arranged in the middle of the lower end of the upper buckle plate 42, and a positioning groove 433 matched with the positioning column 422 is arranged in the middle of the upper end of the lower buckle plate 43, so that the upper buckle plate and the lower buckle plate can be conveniently aligned and assembled up and down; two hooks 46 extending outwards are arranged at the rear ends of the upper buckle plate 42 and the lower buckle plate 43 and are used for being clamped and fixed with an external plug shell.

In this embodiment, the spring plate 22 is formed by combining a steel belt and a copper sheet, and has a structure of a steel chain type belt-shaped structure, so that the spring plate has the characteristic of fast recovery of deformation elasticity, has good thermal conductivity and is resistant to plugging and unplugging, and is convenient to clamp the spring plate in the plugging hole of the jack terminal by utilizing the deformation characteristic of the spring plate.

The specific assembling steps of the liquid cooling structure of the spiral connector are as follows:

(1) and (3) installing the reed into the plug hole at the front end of the jack terminal, and installing the two first sealing rings into the first grooves at the corresponding positions of the jack terminal respectively to assemble the jack terminal assembly.

(2) Then the aluminum sleeve is sleeved outside the jack terminal assembly, and the cable is pressed at the rear end of the jack terminal to assemble the jack terminal cable assembly.

(3) Then a plurality of second sealing rings are respectively arranged in second grooves on the aluminum sleeve, and then the jack terminal cable assembly is arranged in a through hole in the rubber core.

(4) And finally, the jack terminal cable assembly is tightly pushed inwards and fixed by the upper and lower buckle plates and is locked by screws, and the assembly is finished.

In other embodiments of the present invention, the cooling medium may be silicone oil, compressed air, water, or the like.

Example 2

As shown in fig. 1 to 15, a connector shown in this embodiment includes the spiral connector liquid cooling structure 100 described in embodiment 1, and further includes a plug housing 200 and a socket housing 300 that are inserted into each other, the spiral connector liquid cooling structure 100 is fixed to the front end of the plug housing 200 by being fastened by the hook 46, the rear end of the jack terminal 2 is connected to the cable 400 inserted into the plug housing 200, and two adapters 500 respectively communicated with the liquid inlet and the liquid outlet are disposed at the upper end of the plug housing 200; the socket housing 300 is provided therein with a pin 600 to be inserted into the receptacle terminal 2.

Adapter 500 is the right angle form, adapter 500's one end periphery be equipped with the screw thread and with plug shell 200 threaded connection, the installation of the adapter of being convenient for, adapter 500's other end periphery is equipped with sawtooth line 501, and this department is equipped with the adapter 500 outside cover of sawtooth line and is equipped with the hose 502 that is used for carrying cooling medium, through the sawtooth line, cohesion and leakproofness after can strengthening it and the hose connection, avoid appearing weeping and the hose receives the influence of external force and the problem that drops easily appears, and the junction cover at hose 502 and adapter 500 is equipped with second fastener 700, compress tightly the position of being connected of hose and adapter through second fastener 700, further prevent that the hose from dropping and strengthening the leakproofness, improve the reliability of connector.

The second fastener 700 comprises an upper pressure plate 701 and a lower pressure plate 702 which are mutually fixed through screws, arc-shaped grooves 703 are respectively arranged at positions corresponding to the adapter 500 on the opposite surfaces of the upper pressure plate 701 and the lower pressure plate 702, the upper and lower corresponding grooves 703 form mutually matched circular grooves, and the circular grooves are in interference fit with the adapter and the hose to ensure the locking stability and tightness; positioning holes 704 are formed in two sides of the upper end of the lower pressing plate 702, and positioning salient points 705 matched with the positioning holes 704 are formed in the lower end of the upper pressing plate 701; the second fastener is divided into an upper pressing plate and a lower pressing plate which are arranged at the upper part and the lower part, so that the installation of the fastener is facilitated, and the upper pressing plate and the lower pressing plate are conveniently locked and fixed through screws after being aligned and assembled up and down through the matching of the positioning salient points and the positioning holes which are respectively arranged on the upper pressing plate and the lower pressing plate; and the one end of top board 701 extends forward and covers the adapter and be connected fixedly through the screw with plug housing 200, prevents after the installation is fixed that second fastener and adapter from appearing rotating under the circumstances of atress and leading to not hard up problem, and the adapter is covered can effectively improve the aesthetic property and the wholeness of product.

A gasket 401 and a first waterproof ring 402 are sequentially sleeved on the cable 400 from inside to outside, the periphery of the first waterproof ring 402 is abutted against the inner wall of the plug housing 200, and a stop step located on the inner side of the gasket 401 is arranged at the rear end of the plug housing 200; the outer side of the cable 400 is also sleeved with a tail buckle 403, and the tail buckle 403 is buckled at the tail end of the plug shell 200; the front end of the spiral connector liquid cooling structure 100 is further sleeved with a rubber core pressing plate 800, and the front end of the plug shell 200 is further sleeved with a second waterproof ring 201 abutted to the inside of the socket shell.

The socket shell 300 is internally provided with clamping jaws 301, the contact pins 600 are provided with positioning seats 601, the periphery of each positioning seat 601 is provided with a tapered groove 602 clamped with the clamping jaws 301, the front end face of each positioning seat 601 is provided with a plurality of positioning clamping grooves 603, and the socket shell 300 is internally provided with positioning retaining buckles 302 clamped with the positioning clamping grooves 603; a shield plate 303 abutting the inside of the plug housing is provided in the front end of the receptacle housing 300.

A handle 900 for locking with the plug housing is also provided on the outside of the receptacle housing.

The utility model discloses an in other embodiments, be connected through adapter and hose and outside (fill on electric pile or the electric automobile) liquid cooling circulating device (be liquid cooling heat transfer device) to make coolant carry out the inside and outside circulation, and then take out through the heat that coolant will glue the core inside and cool off.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. A liquid cooling structure of a spiral connector is characterized by comprising a rubber core and a jack terminal which is hermetically arranged in the rubber core in a penetrating manner and used for being connected with a cable, wherein a spiral groove used for flowing of a cooling medium is formed in the periphery of the jack terminal, and a liquid inlet hole and a liquid outlet hole which are respectively communicated with two ends of the spiral groove are formed in the rear end of the rubber core; an aluminum sleeve sleeved outside the jack terminal is arranged between the rubber core and the jack terminal, and the aluminum sleeve is provided with through holes at positions corresponding to the liquid inlet hole and the liquid outlet hole; the periphery of jack terminal still overlaps and is equipped with two and arranges in respectively the first sealing washer in the helicla flute both ends outside, the periphery of first sealing washer with the inner wall butt of aluminium cover.

2. The liquid cooling structure of the spiral connector according to claim 1, wherein two through holes are formed in the rubber core, the aluminum sleeve and the jack terminals are arranged in the two through holes, an overflowing hole for communicating the two through holes is formed in the front end of the rubber core, the aluminum sleeve is also provided with a through hole at a position corresponding to the overflowing hole, one end of each of the spiral grooves in the two jack terminals is communicated with the liquid inlet hole and the liquid outlet hole, and the other end of each of the spiral grooves in the two jack terminals is communicated with the overflowing hole.

3. The liquid cooling structure of the spiral connector according to claim 2, wherein the periphery of the plug hole terminal is further provided with two first grooves respectively disposed at the outer sides of the two ends of the spiral groove, and the first sealing ring is sleeved in the first grooves; the periphery of the through hole is provided with a second groove, a second sealing ring is sleeved in the second groove, and the outer side of the second sealing ring is abutted to the inner wall of the through hole.

4. The liquid cooling structure of a screw connector according to claim 3, wherein a first fastener is provided at a rear end of the rubber core, a flange inserted into the through hole is provided at a front end of the first fastener in a forward extending manner, and a front end surface of the flange abuts against a rear end surface of the aluminum sleeve; and a stopping part which radially extends inwards and is used for being matched with the aluminum sleeve and the jack terminal is arranged at the hole opening at the front end of the through hole.

5. The liquid cooling structure of the screw connector according to claim 4, wherein the first fastening member comprises an upper buckle plate and a lower buckle plate which are fastened with each other, and semicircular grooves are formed in the opposite surfaces of the upper buckle plate and the lower buckle plate at positions corresponding to the two jack terminals; the buckle is arranged on each of two sides of the upper buckle plate, the buckling parts extending forwards are arranged on each of two sides of the lower buckle plate, and the buckling parts are provided with clamping grooves matched with the buckles; the upper buckle plate and the lower buckle plate are both fixed with the rubber core through screws; a raised positioning column is arranged in the middle of the lower end of the upper pinch plate, and a positioning groove matched with the positioning column is arranged in the middle of the upper end of the lower pinch plate; the rear ends of the upper pinch plate and the lower pinch plate are respectively provided with at least one clamping hook extending outwards.

6. The liquid cooling structure of a screw connector according to claim 5, wherein a steel chain type watchband-shaped spring plate is arranged in the insertion hole at the front end of the insertion hole terminal; the liquid inlet and the liquid outlet are both arranged at the upper end or the lower end of the rubber core and are arranged in a bilateral symmetry manner.

7. A connector, comprising the spiral connector liquid cooling structure according to any one of claims 1 to 6, and further comprising a plug housing and a socket housing which are mutually inserted, wherein the spiral connector liquid cooling structure is clamped at the front end of the plug housing, the rear end of the jack terminal is connected with a cable penetrating through the plug housing, and the plug housing is provided with two adapters respectively communicated with the liquid inlet and the liquid outlet; and a contact pin inserted with the jack terminal is arranged in the socket shell.

8. The connector according to claim 7, wherein a gasket and a first waterproof ring are sequentially sleeved on the cable from inside to outside, the periphery of the first waterproof ring is abutted against the inner wall of the plug shell, and a stop step located on the inner side of the gasket is arranged at the rear end of the plug shell; the outer side of the cable is further sleeved with a tail buckle, and the tail buckle is buckled at the tail end of the plug shell.

9. The connector according to claim 8, wherein the adapter is right-angled, one end of the adapter is in threaded connection with the plug housing, the periphery of the other end of the adapter is provided with sawtooth patterns, a hose is sleeved at one end of the adapter provided with the sawtooth patterns, a second fastener is sleeved at the joint of the hose and the adapter, the second fastener comprises an upper pressing plate and a lower pressing plate which are fixed to each other through screws, grooves are formed in the positions, corresponding to the adapter, of the opposite surfaces of the upper pressing plate and the lower pressing plate, and one end of the upper pressing plate is further connected and fixed with the plug housing through screws; the two sides of the upper end of the lower pressing plate are provided with positioning holes, and the lower end of the upper pressing plate is provided with positioning salient points matched with the positioning holes.

10. The connector of claim 9, wherein a claw is provided in the socket housing, a positioning seat is provided on the pin, a tapered groove for engaging with the claw is provided on the positioning seat, a plurality of positioning slots are provided on a front end surface of the positioning seat, and a positioning catch for engaging with the positioning slots is provided in the socket housing.