CN215528018U - High-pressure waterproof connector for road automobile - Google Patents

Abstract

The utility model discloses a high-pressure waterproof connector for a road automobile, which comprises a socket sheath and a terminal rear cover, wherein the socket sheath and the terminal rear cover are mutually matched and connected through an integrated buckle structure, PIN holes are arranged on the terminal rear cover, a terminal correspondingly penetrates through each PIN hole, a dustproof cover is movably arranged at an opening of the socket sheath, a double-notch mechanism is arranged at the other side of the socket sheath, a nut rear cover and a nut are arranged in the double-notch mechanism, a sealant structure is arranged between the nut rear cover and the socket sheath, the nut rear cover and the double-notch mechanism are connected in a clamping and embedding manner through a dovetail guide clamping groove, a sealing gasket is sleeved above the socket sheath, and a sealing positioning mechanism and a circumferential waterproof flange structure are arranged between the socket sheath and the sealing gasket. Through the mode, the waterproof path is increased by utilizing the matching of the clamping grooves between the parts, the waterproof effect is improved, and the waterproof grade can reach the IPX7 grade.

Description

High-pressure waterproof connector for road automobile

Technical Field

The utility model relates to the field of electronic components, in particular to a high-pressure waterproof connector for a road automobile.

Background

Along with rapid development and popularization of the automobile industry in China, requirements of people on the environment and service life of an automobile can be higher and higher, the high-voltage waterproof connector is more and more emphasized by people as electronic components commonly used in a road automobile, different waterproof grades are adopted for the high-voltage waterproof automobile connector product, the waterproof effect is different, the application range of the connector with the high waterproof grade is wider, the connector can normally work and operate in a humid and severe environment, and the high-voltage waterproof automobile connector product becomes the future development trend of the high-voltage road automobile connector product.

The conventional waterproof connector is a combination unit which is mainly composed of a socket sheath or a plug sheath made of plastic materials, a socket or a plug (collectively called as a terminal) made of metal materials and accessories thereof and can realize electrical connection, and the purpose of connector mutual matching is achieved through the engagement of a male connector and a female connector.

Due to the limitation of the connector structure, most of the connectors form internal components through the insert injection molding process to achieve the waterproof effect, but the production cost of the connector is greatly increased due to the process mode; in addition, the connector structure obtained by the conventional part assembly mode has the waterproof function which is difficult to reach the IPX7 level. Therefore, a new high-pressure waterproof connector is yet to be developed, aiming at simplifying the process production mode, improving the waterproof grade and reducing the manufacturing cost of the connector.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a high-pressure waterproof connector for a road automobile, which increases a waterproof path by matching clamping grooves between parts in a part assembling mode, improves the waterproof effect, has the waterproof grade reaching the IPX7 grade, reduces the manufacturing cost of the connector, simplifies the process mode and meets the functional requirements of high-pressure waterproof.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a road automobile is with high-pressure waterproof type connector, lid behind socket sheath and terminal, cover behind socket sheath and the terminal and connect through integral type buckle structure interworking between the lid, cover behind the terminal and arrange and be provided with the PIN hole, each PIN is downthehole to be passed and is provided with the terminal, socket sheath's opening part activity is provided with the shield, socket sheath deviates from one side of shield is provided with double groove mouth mechanism, all be provided with lid and nut behind the nut in the double groove mouth mechanism, behind the nut lid with be provided with sealed glue structure between the socket sheath, behind the nut lid with connect through forked tail guide card groove inlay card between the double groove mouth mechanism, socket sheath top cover is equipped with sealed the pad, socket sheath with be provided with sealed positioning mechanism and the waterproof flange structure of circumference between the sealed pad.

Preferably, the integrated buckle structure comprises buckle barbs arranged on the terminal rear cover, a plastic side wall is arranged at the bottom of the socket sheath, and a stop strip matched with the buckle barbs is arranged on the plastic side wall.

Preferably, the buckle barb sets up vertical muscle respectively along direction of height's both sides, cover behind the terminal and correspond the plastic lateral wall is provided with the location frame mouth.

Preferably, a fool-proof structure is further arranged between the side wall of the terminal rear cover and the socket sheath.

Preferably, a slipknot locking structure is arranged between the socket sheath and the dustproof cover.

Preferably, the slipknot locking structure comprises interference buckles diagonally arranged on the dustproof cover, and the opening of the socket sheath is provided with a clamping column matched with the interference buckles.

Preferably, the two sides of the dustproof cover along the width direction are respectively provided with an armrest position, and the two sides of the dustproof cover along the length direction are respectively provided with a reinforcing rib.

Preferably, the sealant structure comprises an annular sealant groove arranged between the nut rear cover and the socket sheath, and sealant is arranged in the annular sealant groove.

Preferably, the sealing and positioning mechanism comprises a mushroom nail and a positioning column which are arranged below the sealing gasket, and the socket sheath is correspondingly provided with a hollow hole and a cylindrical groove.

Preferably, the root of the terminal is provided with a sealing rubber plate.

The utility model has the beneficial effects that: the utility model provides a high-pressure waterproof connector for a road automobile, which has the following main innovation points in structural design:

(1) the terminal rear cover is in an integrated buckle structure in terms of functions, the terminal rear cover is prevented from moving up and down, left and right and overturning, the buckle strength is enhanced, meanwhile, the foolproof feature is arranged on the terminal rear cover, the assembly personnel can conveniently identify the terminal rear cover, and the labor hour is reduced;

(2) the dustproof cover adopts a slipknot design, the structure is simplified by utilizing the cylindrical characteristic of the original socket sheath frame opening, and the handrail position structure is arranged on the dustproof cover, so that the pulling and inserting comfort level is improved;

(3) compared with the design of an insert injection molding type rear cover, the assembled nut rear cover can save production cost, a waterproof path is increased by matching double notches between the nut rear cover and a socket sheath, and a better waterproof effect is achieved by glue pouring treatment at a matching position;

(4) the novel sealing gasket is designed to be positioned up, down, left and right through the mushroom nail and the positioning column structure groove, the risk that the sealing gasket is separated from the socket sheath after being installed is further prevented in a mode that the sealing gasket is sleeved in the socket sheath clamping groove, the assembly is convenient, the waterproof effect can be achieved, and the socket sheath main body can be protected in a gasket mode;

this scheme utilizes the draw-in groove cooperation between part and the part to increase waterproof route through the mode of above-mentioned part equipment, promotes water-proof effects, and waterproof grade can reach IPX7 grade, has not only reduced the manufacturing cost of connector, has simplified the technological mode, satisfies high-pressure waterproof function demand moreover, has good popularization technological value.

Drawings

Fig. 1 is a schematic view of the overall structure of a high-pressure waterproof connector for a road vehicle according to the present invention;

FIG. 2 is an exploded view of the high-pressure waterproof connector for road vehicles according to the present invention;

FIG. 3 is a schematic view of the structure of the rear cover of the terminal of the present invention;

FIG. 4 is a side view of the present invention embodying an integral snap-fit connection between the terminal back cover and the receptacle boot;

FIG. 5 is a partial schematic view of the present invention for revealing the dust cap structure;

FIG. 6 is a schematic structural view of a rear cover of the nut of the present invention;

FIG. 7 is a schematic view of the structure of the locking points at the two ends of the rear nut cover in place;

FIG. 8 is a side view of the present invention for revealing the assembled interfitting structure between the nut back cover and the receptacle boot;

FIG. 9 is a cross-sectional view of FIG. 8 for embodying a mating clearance between the nut back cover and the receptacle boot;

FIG. 10 is an enlarged partial view of the fit clearance between the nut back cover and the receptacle boot of FIG. 9 for promoting a water-tight path;

FIG. 11 is a structure of a gasket in the present invention;

FIG. 12 is a schematic view of the mushroom stud attachment structure corresponding to FIG. 11;

FIG. 13 is a schematic view of the fit between the gasket and the socket boot of the present invention;

the parts in the drawings are numbered as follows:

1. a socket boot; 2. a terminal rear cover; 3. a PIN hole; 4. a terminal; 5. a dust cover; 6. a double notch mechanism; 7. a nut rear cover; 8. a nut; 9. a dovetail guide slot; 10. a gasket; 11. the buckle is reversely hooked; 12. a plastic side wall; 13. a stop strip; 14. vertical ribs; 15. positioning the frame opening; 16. a fool-proof structure; 17. interference buckles; 18. clamping the column; 19. an armrest position; 20. reinforcing ribs; 21. an annular glue sealing groove; 22. sealing glue; 23. mushroom nails; 24. a positioning column; 25. a hollow bore; 26. a cylindrical groove; 27. sealing the rubber plate; 28. stopping at the stuck point.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Example (b):

as shown in fig. 1 and fig. 2, a waterproof type connector of high pressure for road automobile, lid 2 behind socket sheath 1 and the terminal, lid 2 is mutually joined in marriage through integral type buckle structure behind socket sheath 1 and the terminal between the lid 2, integral type buckle structure is provided with one respectively at the both ends of lid 2 and socket sheath 1 behind the terminal, both realized behind the terminal the firm mutual joining of marriage of joint of lid 2 and socket sheath 1, the location of lid 2 behind the terminal has been realized again simultaneously, prevent behind the terminal lid 2 from moving about from top to bottom and upset. Arrange on the lid 2 behind the terminal and be provided with PIN hole 3, it is provided with terminal 4 to correspond to pass in each PIN hole 3, the position of PIN hole 3 effective restriction terminal 4, what this embodiment embodied is that the interrelating of four rows of terminals and plug is connected, this kind of mode through increasing lid 2 behind the terminal has effectively promoted the normal position degree of terminal, prevent that the connector from damaging at terminal position degree in the transportation, cause unable and customer PCB panel matching welded problem, form sealed offset plate 27 and seal at the root encapsulating of terminal 4 during the preparation.

As shown in fig. 2, 3 and 4, the integrated buckle structure comprises buckle barbs 11, the buckle barbs 11 are arranged on the terminal rear cover 2, a plastic side wall 12 is arranged at the bottom of the socket sheath 1, a position stopping strip 13 matched with the buckle barbs 11 is arranged on the plastic side wall 12, the buckle barbs 11 have good toughness, crisp click sound can be heard during locking, and an assembler can judge whether the terminal rear cover 2 is assembled in place. After the welding end of terminal 4 passed lid 2 behind the terminal PIN hole 3 structure to this integral type buckle structure is fixed lid 2 and socket sheath 1 behind the terminal, and buckle barb 11 interferes with ending position strip 13, forms the barb, prevents behind the terminal that lid 2 breaks away from. In order to strengthen the strength of the integrated buckle structure, the buckle barbs 11 are prevented from being broken when being installed or withdrawn, and the vertical ribs 14 are respectively arranged on the two sides of the buckle barbs 11 in the height direction. The terminal rear cover 2 is provided with a positioning frame opening 15 corresponding to the plastic side wall 12, the plastic side wall 12 is sleeved with the positioning frame opening 15 at the bottom, the overall vertical and horizontal positioning of the terminal rear cover 2 is realized, the terminal rear cover is prevented from moving or overturning, and the requirement on the true position of the terminal 4 is further ensured. In addition, still be provided with between the lateral wall of lid 2 behind the terminal and socket sheath 1 and prevent slow-witted structure 16, easy discernment when being convenient for install avoids lid 2 behind the terminal dress to turn over, reduces the equipment man-hour, also can set up the station foot in the bottom of lid 2 behind the terminal for place in PCB and weld the board with the station foot and paste the tie in the product.

As shown in fig. 2 and 5, a dustproof cover 5 is movably arranged at an opening of a socket sheath 1, a slipknot locking structure is arranged between the socket sheath 1 and the dustproof cover 5, the dustproof cover 5 of the patent is made of non-silica gel, and the dustproof cover made of non-silica gel is arranged at the opening of the socket sheath 1, so that the risk that the traditional dustproof cover made of silica gel mixes impurities in air to pollute a metal terminal for transmitting signals is effectively avoided; meanwhile, due to the design of the dustproof cover, when the socket is kept still, dust in the air can be prevented from entering a terminal matching area, and therefore the problems that the plug and the socket are poor in contact and the function of transmitting signals fails are caused.

As shown in figures 2 and 5, the slipknot locking structure comprises interference buckles 17 arranged on the dustproof cover 5, the interference buckles 17 are diagonally arranged on the dustproof cover 5, clamping columns 18 matched with the interference buckles 17 are arranged on an opening of the socket sheath 1, multiple plugging and unplugging can be achieved, the slipknot utilizes original cylindrical characteristics on the socket sheath 1 to set buckles, original design space is utilized to the maximum extent, and the design is attractive, simple and novel. To shield 5, shield 5 is provided with handrail position 19 respectively along width direction's both sides, make full use of human engineering, has improved the comfort level of artifical plug, is provided with strengthening rib 20 respectively in shield 5 along length direction's both sides simultaneously, with two adjacent wall type chase mouthful structures, has strengthened the intensity of shield greatly.

As shown in fig. 2, 8, 9 and 10, one side of the socket sheath 1 departing from the dust cover 5 is provided with a double-notch mechanism 6, the double-notch mechanism 6 is internally provided with a nut rear cover 7 and a nut 8, the nut rear cover 7 and the double-notch mechanism 6 are connected in a clamping and embedding manner through a dovetail guide clamping groove 9, and when the nut rear cover 7 is assembled with the double-notch mechanism 6, the area is the area which is the most matched, and a guide effect is provided for the matching of subsequent notches. When the nut rear cover 7 is matched in place, the clamping point stop positions 28 at two ends are arranged, and the crisp click sound is accompanied, so that the nut rear cover 7 is fixed in place, and then subsequent annular groove sealing glue sealing is carried out. The structure design between the double-notch mechanism 6 and the nut rear cover 7 is as follows: the lateral wall of lid 7 inserts socket sheath 1's inslot behind the nut, and simultaneously, the lateral wall of socket sheath 1 inserts behind the nut lid 7's inslot, forms two notch structures to this realizes that waterproof route increases, even there is moisture to get into from the plastic gap in the air, moisture extends along the plastic wall diffusion, and the effective increase in waterproof route, fine prevention moisture gets into the plastic inner chamber.

As shown in fig. 2, 6, 9 and 10, a sealant structure is disposed between the nut rear cover 7 and the socket sheath 1, the sealant structure includes an annular sealant groove 21 disposed between the nut rear cover 7 and the socket sheath 1, and a sealant 22 is disposed in the annular sealant groove 21, that is, the sealant groove is a sealant filling region, so as to achieve a waterproof and sealing function. After the rear nut cover 7 is inserted into the socket sheath 1 in place, the annular glue sealing groove 21 between the rear nut cover 7 and the socket sheath 1 is subjected to glue filling treatment, so that the sealing condition is achieved, and secondary waterproof protection is realized.

As shown in fig. 1, 11 and 12, a sealing gasket 10 is sleeved above the socket sheath 1, a sealing positioning mechanism is arranged between the sealing gasket 10 and the socket sheath 1 to realize a waterproof function on one side of a matching surface, the sealing positioning mechanism comprises a mushroom nail 23 and a positioning column 24 which are arranged below the sealing gasket 10, a hollow hole 25 and a cylindrical groove 26 are correspondingly arranged on the socket sheath 1, namely, the sealing gasket 10 is fixed on a panel hole of the socket sheath 1 in an interference fit manner through a mushroom nail structure, the hollow hole is arranged in the mushroom nail structure, when the mushroom nail 23 is inserted into the corresponding hollow hole 25, the mushroom nail 23 is extruded and penetrates through the hole, then the mushroom nail 23 rebounds to form an inverted hook, so that the sealing gasket 10 is fixed on the socket sheath 1; in addition, the positioning posts 24 are engaged with the corresponding cylindrical grooves 26 to position the four corners of the gasket 10 and prevent the gasket from moving forward, backward, leftward, and rightward.

As shown in fig. 1 and 13, in order to further increase the waterproof path, a circumferential waterproof flange structure is provided between the socket sheath 1 and the gasket 10, that is, the circumferential connecting structure of the gasket 10 is embedded into the groove of the socket sheath 1, and is matched with the application panel to form a circle of waterproof flange, so that the waterproof path is increased, and a certain resistance is provided for moisture permeation. The corresponding sealed pad 10 that seals is provided with the draw-in groove in the socket sheath 1, sealed pad 10 embolias socket sheath 1 and takes tight mode promptly, further prevents to seal the risk that breaks away from the socket sheath after the installation of pad, and the equipment is convenient, and this kind can reach water-proof effects, can protect socket sheath main part with the form of gasket again.

The product manufacturing process flow of the scheme is as follows:

(1) obtaining the terminal 4 by a stamping process;

(2) obtaining a socket sheath 1, a terminal rear cover 2 and a nut rear cover 7 through an injection molding process;

(3) bending the terminal 4 and inserting the bent terminal into the socket sheath 1;

(4) mounting a terminal rear cover 2;

(5) a nut rear cover 7 is covered after the nut 8 is installed;

(6) pouring glue on the root of the terminal 4 to form a sealing rubber plate 27 for sealing;

(7) pouring glue into an annular glue sealing groove 21 at the matching part of the nut rear cover 7 and the socket sheath 1 for sealing, and then drying;

(8) mounting the sealing gasket 10 through the mushroom nails 23 and the positioning columns 24;

(9) the dust cover 5 is installed through a sliplock locking structure.

The connector of this scheme passes through the cooperation between part and the part, increases the waterproof route between the part assembly and improves water-proof effects, compares in being fixed in the socket sheath with the nut directly with the process method that inserts were moulded plastics, and manufacturing cost has been practiced thrift greatly to the mode of this scheme part equipment.

The high-pressure waterproof function of the scheme is mainly embodied in the following way:

(1) a sealing gasket is fixed on a large plane on one side of a frame opening matching surface of the high-pressure waterproof connector, the sealing gasket is positioned on a plastic jacket through a mushroom nail and a positioning column, and a circle of flange of the sealing gasket is tightly matched with the plane on the socket jacket, so that a waterproof function on one side of the frame opening matching surface is realized;

(2) the back of the large plane of the high-pressure waterproof connector adopts the nut rear cover fixing nut, a waterproof path is increased through a double-notch matching mechanism between the nut rear cover and the socket sheath to form a layer of waterproof, then the region is sealed by filling the sealant in the annular sealant sealing groove formed in the matching region of the nut rear cover and the socket sheath, the sealant has high liquid density and good fluidity, and the sealant can be fully paved in the annular sealant sealing groove after being filled to form a second layer of waterproof, so that the double waterproof structure has excellent waterproof effect, the process is simple, the assembly is convenient, and the production cost is greatly reduced;

(3) on one side of the welding end of the large-plane terminal of the high-pressure waterproof connector, a sealing rubber plate is formed in the root area of the terminal in a mode of adding a sealing rubber in a groove to achieve a waterproof effect, and the waterproof of a contact area after the high-pressure waterproof connector socket and the mating connector are mutually matched is achieved;

(4) the high-pressure waterproof connector adopts multiple rows of terminals to realize the mutual matching connection with the plug, and the rightness of the terminals is improved by increasing the rear cover of the terminals, so that the damage of the position degree of the terminals in the transportation process of the connector is prevented;

(5) this waterproof type connector of high pressure is furnished with the shield at socket each other and joins in marriage the frame mouth, and the shield adopts non-silica gel material, has avoided polluting the risk of transmission signal terminal, adopts the loose knot structure between shield and the socket sheath simultaneously, realizes plug many times, and furthest utilizes original design space.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a waterproof type connector of high pressure for road automobile which characterized in that: the socket comprises a socket sheath (1) and a terminal rear cover (2), wherein the socket sheath (1) and the terminal rear cover (2) are connected in an interworking mode through an integrated buckle structure, PIN holes (3) are arranged in the terminal rear cover (2), a terminal (4) is correspondingly arranged in each PIN hole (3) in a penetrating mode, a dustproof cover (5) is movably arranged at an opening of the socket sheath (1), a double-notch mechanism (6) is arranged on one side, deviating from the dustproof cover (5), of the socket sheath (1), a nut rear cover (7) and a nut (8) are arranged in the double-notch mechanism (6), a sealing structure is arranged between the nut rear cover (7) and the socket sheath (1), the nut rear cover (7) and the double-notch mechanism (6) are connected in an embedded mode through a dovetail guide clamping groove (9), and a sealing pad (10) is sleeved on the upper portion of the socket sheath (1), and a sealing positioning mechanism and a circumferential waterproof flange structure are arranged between the socket sheath (1) and the sealing gasket (10).

2. The high-pressure waterproof connector for the road automobile according to claim 1, wherein: the integrated buckle structure comprises buckle barbs (11) arranged on the terminal rear cover (2), a plastic side wall (12) is arranged at the bottom of the socket sheath (1), and a stop strip (13) matched with the buckle barbs (11) is arranged on the plastic side wall (12).

3. The high-pressure waterproof connector for the road automobile according to claim 2, characterized in that: the buckle barb (11) sets up vertical muscle (14) respectively along direction of height's both sides, correspond behind the terminal on lid (2) plastic lateral wall (12) are provided with location frame mouth (15).

4. The high-pressure waterproof connector for the road automobile according to claim 3, wherein: and a fool-proof structure (16) is also arranged between the side wall of the terminal rear cover (2) and the socket sheath (1).

5. The high-pressure waterproof connector for the road automobile according to claim 1, wherein: a slipknot locking structure is arranged between the socket sheath (1) and the dustproof cover (5).

6. The high-pressure waterproof connector for the road automobile according to claim 5, wherein: the slipknot locking structure comprises interference buckles (17) diagonally arranged on the dustproof cover (5), and clamping columns (18) matched with the interference buckles (17) are arranged on the opening of the socket sheath (1).

7. The high-pressure waterproof connector for the road automobile according to claim 6, wherein: the dustproof cover (5) is provided with handrail positions (19) along the both sides of width direction respectively, the dustproof cover (5) is provided with strengthening rib (20) along length direction's both sides respectively.

8. The high-pressure waterproof connector for the road automobile according to claim 1, wherein: the sealing glue structure comprises an annular sealing glue groove (21) formed between the nut rear cover (7) and the socket sheath (1), and sealing glue (22) is arranged in the annular sealing glue groove (21).

9. The high-pressure waterproof connector for the road automobile according to claim 1, wherein: the sealing and positioning mechanism comprises a mushroom nail (23) and a positioning column (24) which are arranged below the sealing gasket (10), and a hollow hole (25) and a cylindrical groove (26) are correspondingly arranged on the socket sheath (1).

10. The high-pressure waterproof connector for the road automobile according to claim 1, wherein: and a sealing rubber plate (27) is arranged at the root part of the terminal (4).

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