CN217114954U - High-pressure rectangular connector - Google Patents

Abstract

The utility model relates to a high-voltage rectangular connector, which comprises a plug structure and a base structure, wherein the plug structure is provided with a plug shell and an inner insulator, the plug shell is provided with an inserting hole, the inner insulator is positioned at the inner side of the plug shell, and an electric connecting piece is arranged in the inner insulator; the base structure is provided with a contact pin which is matched and electrically connected with the electrical connecting piece; the inner insulator is provided with a placing groove, the placing groove is provided with a narrowing section matched with the elastic sealing ring to press in, the narrowing section narrows from the head end of the placing groove towards the tail end of the placing groove, the head end is the end close to the plug hole, and the tail end is the end far away from the plug hole. Therefore, when the external lead is inserted into the cavity of the elastic sealing ring through the insertion hole and the elastic sealing ring is pressed into the narrowing section, the elastic sealing ring is tightly sealed with the inner wall of the narrowing section, and the external lead can be pressed by the elastic sealing ring at the moment, so that the effect of further enhancing the sealing performance is realized.

Description

High-pressure rectangular connector

Technical Field

The utility model relates to an electric connector field especially relates to a high pressure rectangular connector.

Background

The existing high-voltage rectangular connector generally comprises a plug structure and a base structure, wherein an electrical connecting piece for leading in and inserting a wiring hole from the outside and matching an external wire to realize electrical connection is formed on the plug structure, and a contact pin for connecting the electrical connecting piece is formed in the base structure. In external wire inserts the wiring hole, in order to realize the sealed between external wire and the wiring hole, can generally form at the outer peripheral face of this external wire tip (inserting the tip in wiring hole promptly) and accomodate the groove, the periphery of accomodating the groove is equipped with elastic sealing ring with interference fit local formula cover, elastic sealing ring's external diameter is less than the aperture in wiring hole, the downthehole annular holding tank of placing elastic sealing ring of wiring and the elasticity locking part who leans on external wire that is provided with. Therefore, after the external lead is inserted into the wiring hole, the elastic sealing ring is not contacted with the inner wall of the wiring hole, the inner containing groove and the elastic sealing ring form a sealing interface due to interference fit, and the end part of the external lead and the elastic sealing ring are sealed due to sleeving, so that the sealing performance of the elastic sealing element and the sealing interface of the inner containing groove cannot be influenced due to the movement of the external lead.

However, the above-described conventional high-pressure rectangular connector structure also has disadvantages:

firstly, an inner accommodating groove needs to be formed at the end part of the external lead, and an elastic sealing ring needs to be sleeved outside the inner accommodating groove in an interference fit manner, so that the difficulty of the manufacturing process of the external lead is increased, and the elastic sealing ring needs to be sleeved on each external lead inserted into the wiring hole, so that the wiring cost is increased;

secondly, because the elastic sealing ring sleeved on the external lead is not contacted with the inner wall of the wiring hole, a gap is formed between the elastic sealing ring and the inner wall of the wiring hole, and the sealing effect is very poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high pressure rectangular connector that the cost of wiring is low and sealed effect is better is provided to above-mentioned prior art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a high pressure rectangular connector comprising:

the plug structure is provided with a plug shell and an inner insulator, wherein at least one plug hole for inserting an external wire is formed in the plug shell, the inner insulator is positioned on the inner side of the plug shell, and at least one electrical connecting piece is arranged in the inner insulator;

the base structure is provided with at least one contact pin, and the contact pin is matched and electrically connected with the corresponding electrical connecting piece;

the insulation device is characterized by also comprising at least one elastic sealing ring, wherein a cavity which is matched with an external lead to be inserted and is provided with holes at two ends is formed in the elastic sealing ring, at least one placing groove is formed on the inner insulator, the placing groove is provided with a narrowing section matched with the elastic sealing ring to be pressed in, and the elastic sealing ring is positioned in the corresponding placing groove and is abutted against the inner wall of the placing groove; when the external lead is inserted into the cavity of the elastic sealing ring through the inserting hole and the elastic sealing ring is pressed into the narrowing section, the elastic sealing ring is tightly sealed with the inner wall of the narrowing section.

In the high-voltage rectangular connector, the narrowing section narrows from the head end of the placement groove toward the tail end of the placement groove, the head end is the end close to the plug hole, and the tail end is the end far away from the plug hole.

In the high-voltage rectangular connector, the inner insulator is fixed to the inner side of the plug housing by a snap-fit manner.

Further, in the high-voltage rectangular connector, a fastener clamped on the inner side of the plug shell is formed on the side wall of the inner insulator.

Further, in the present invention, the high-pressure rectangular connector further includes a fastening screw for fastening the inner insulator to an end portion of the plug housing.

In a further improvement, in the high-voltage rectangular connector, an end portion of the plug housing to which the internal insulator is fastened is an end portion close to the insertion hole.

In a further refinement, the base structure includes, in the high pressure rectangular connector:

the base body is provided with a groove body which is matched and fastened in the plug shell, at least one pin hole is formed in the groove body, and the pin is arranged in the pin hole;

and the waterproof ring is positioned in the gap between the groove body and the plug shell after the groove body and the plug shell are tightly matched.

In the high-pressure rectangular connector, the base structure includes a waterproof gasket, and the waterproof gasket is located between the base body and the plug housing and is tightly attached to the base body.

In the high-voltage rectangular connector, the base structure further comprises an insulator, and the groove body is formed on the insulator.

And improving the high-pressure rectangular connector, wherein a first buckle structure is formed on the plug shell, a second buckle structure is formed on the base body, and the first buckle structure and the second buckle structure are mutually matched in a buckling manner.

Further, in the high-pressure rectangular connector, a manipulation part for releasing the snap-fit state is formed on the first snap structure.

In the high-pressure rectangular connector, an anti-slip structure is formed on the operation part.

In the high-pressure rectangular connector, the first snap structure is an elastic structure.

In the high-voltage rectangular connector, a stopper portion for limiting a moving position of the inner insulator is formed on an inner wall of the plug housing.

In order to facilitate the mounting of the high-pressure rectangular connector to the target apparatus by means of screw fixing, it is further improved that in the high-pressure rectangular connector, a screw hole is formed on the base body and outside the groove.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a through form the standing groove on the internal insulator of plug structure, the standing groove has the narrowing section that cooperation elastic seal pressed in, and the narrowing section narrows from the head end of standing groove towards the terminal direction of standing groove, and this head end is the one end that is close to the spliced eye promptly, and this end is the one end of keeping away from the spliced eye. Therefore, when the external lead is inserted into the cavity of the elastic sealing ring through the inserting hole and the elastic sealing ring is pressed into the narrowing section, the elastic sealing ring is tightly sealed with the inner wall of the narrowing section, and the external lead is pressed by the elastic sealing ring at the moment, so that the effect of further enhancing the sealing property is realized;

in addition, because the elastic sealing ring is in contact with the inner wall of the wiring hole, the elastic sealing ring can also tightly abut against the inner wall of the wiring hole, and the sealing effect between the elastic sealing ring and the inner wall of the wiring hole is enhanced. Therefore, under the condition that each external lead is not required to be additionally sleeved with an elastic sealing ring, multiple sealing effects between the elastic sealing ring and the inner wall of the wiring hole, between the elastic sealing ring and the external lead and between the elastic sealing ring and the placing groove of the inner insulator are achieved, and the external lead access cost of the high-voltage rectangular connector is reduced.

Drawings

Fig. 1 is a schematic structural view of a high-pressure rectangular connector according to an embodiment of the present invention;

FIG. 2 is a schematic view of the high pressure rectangular connector of FIG. 1 from another perspective;

FIG. 3 is a schematic diagram of a plug configuration for a high pressure rectangular connector;

FIG. 4 is a schematic view of the plug structure of FIG. 3 from another perspective;

FIG. 5 is an exploded view of the plug structure of FIG. 3;

FIG. 6 is a schematic view of a base structure of a high pressure rectangular connector;

FIG. 7 is a schematic view of the base structure of FIG. 6 from another perspective;

FIG. 8 is an exploded view of the base structure of FIG. 6;

FIG. 9 is a cross-sectional view of the plug structure without external wires inserted therein;

FIG. 10 is an enlarged view of portion A of FIG. 9;

FIG. 11 is a cross-sectional view of the plug structure with corresponding structure inserted into an external conductor;

fig. 12 is a cross-sectional view of the corresponding structure when the base structure is fastened to the plug structure by means of screws;

FIG. 13 is an enlarged view of portion A of FIG. 12;

FIG. 14 is a schematic diagram of an application scenario state when the base structure is secured to the target device housing;

fig. 15 is a schematic diagram of another application scenario state when the base structure is fastened to the target device housing.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The present embodiments provide a high pressure rectangular connector. Referring to fig. 1 to 8, the high-pressure rectangular connector of this embodiment includes a plug structure 1, a base structure 2, and a fastening screw 4. Wherein:

referring to fig. 3 to 5, the plug structure 1 includes a plug housing 11 and an inner insulator 12, the plug housing 11 is formed with a plurality of insertion holes 110 into which the external wires 4 are inserted, the inner insulator 12 is fixed inside the plug housing 11 by a snap-fit manner, a waterproof seal ring 14 is disposed between the inner insulator 12 and the plug housing 11, the inner insulator 12 is provided with a plurality of electrical connectors 13, and each electrical connector 13 corresponds to one insertion hole 110;

referring to fig. 6 to 8, the base structure 2 has a plurality of pins 21 and a plurality of elastic sealing rings 3, and further includes a base body 20, a waterproof ring 23 and a waterproof gasket 24, the base body 20 is provided with an insulator 24, the insulator 24 is provided with a groove 22 which is fastened in the plug housing 11 in a matching manner, at least a plurality of pin holes 220 are formed in the groove 22, the pins 21 are arranged in the corresponding pin holes 220, each pin 21 is electrically connected with the corresponding electrical connector 13 in a matching manner, and the waterproof ring 23 is located in a gap between the groove 22 and the plug housing 11 after the groove 22 is fastened and fitted; a cavity (not shown) which is inserted by matching with the external lead 4 and has two open ends is formed in the elastic sealing ring 3, a plurality of placing grooves 120 are formed on the inner insulator 12, each placing groove 120 is provided with a narrowing section 1201 which narrows from the head end towards the tail end, the elastic sealing ring 3 can be pressed into the narrowing section 1201, the head end is one end close to the plug hole 110, and the tail end is one end far away from the plug hole 110; the elastic sealing ring 3 is positioned in the corresponding placing groove 120 and is abutted against the inner wall of the placing groove 120; when the external lead 4 is inserted into the cavity of the elastic sealing ring 3 through the insertion hole 110 and the elastic sealing ring 3 is pressed into the narrowing section 1201, the elastic sealing ring 3 is tightly sealed with the inner wall of the narrowing section 1201. And the elastic sealing ring 3 can compress the external lead 4, so that the effect of further enhancing the sealing performance is realized. The fastening screw 5 fastens the inner insulator 12 to an end of the plug housing 11 (the end being the end close to the plug-in hole 110), so that the elastic sealing ring 3 is pressed into the narrowing 1201 by the fastening screw 5.

As a manner of snap-fitting the inner insulator 12 inside the plug housing 11, as shown in fig. 5, a snap 121 that is snap-fitted inside the plug housing 11 is formed on a side wall of the inner insulator 12.

As a mode of the waterproof gasket 24, the waterproof gasket 24 in this embodiment is located between the base body 20 and the plug housing 11 and is disposed in close contact with the base body 20.

As a fastening fixing manner between the plug housing and the base body, the plug housing 11 of this embodiment is formed with a first fastening structure 111, the first fastening structure 111 is an elastic structure, the base body 20 is formed with a second fastening structure 211, and the first fastening structure 111 and the second fastening structure 211 are mutually fastened and matched.

In order to facilitate the operation of the snap-fit state between the plug housing and the base body, the first snap structure 111 of this embodiment is formed with a manipulation part 112 for releasing the snap-fit state thereof, and the manipulation part 112 is formed with an anti-slip structure 1121. The anti-slip structure 1121 can increase the friction force when the user operates the manipulation unit 112 with the finger, so as to prevent the finger from sliding on the manipulation unit.

In order to define the fastening position of the inner insulator in the plug housing during the fastening of the inner insulator in the plug housing, referring to fig. 9 to 12, a stopper 113 defining the moving position of the inner insulator 12 is formed on the inner wall of the plug housing 11 of this embodiment.

To facilitate mounting of the high pressure rectangular connector to the target device by screw fastening, in this embodiment, screw holes 212 are formed on the base body 20 and outside the slot 22. For example, referring to fig. 14, the base structure is mounted to the target device case 7 by passing a screw through the screw hole 212 of the base body 20. Referring to fig. 15, another application scenario state when fastening the base structure to the target device housing 7 is shown, where 8 is a PCB board.

The external wire plugging of the high-voltage rectangular connector in this embodiment is described below with reference to fig. 9 to 12:

referring to fig. 9 and 10, when the external lead 4 is not inserted into the insertion hole 110 of the high-pressure rectangular connector, the elastic sealing ring 3 is always located in the placement groove 120 and abuts against the inner wall of the placement groove 120; in the plug structure 1, since the internal insulator 12 and the plug housing 11 are not fastened by the fastening screw 5, a gap 6 is still present between the internal insulator 12 and the plug housing 11 at this time, and the elastic seal ring 3 is not pressed into the narrowed section 1201 of the placement groove 120;

referring to fig. 11 to 13, when the external lead 4 is inserted through the insertion hole 110 of the high-pressure rectangular connector, after the end of the external lead 4 passes through the upper end portion, the cavity and the lower end portion of the elastic sealing ring 3, the placing groove 120 of the inner insulator 12 has a narrowing section 1201 which narrows from the head end toward the tail end, and the inner insulator 12 is fastened to one end portion (the end portion is the end portion close to the insertion hole 110) of the plug housing 11 with the fastening screw 5, so that the elastic sealing ring 3 is pressed into the narrowing section 1201 under the action of the fastening screw 5, and the elastic sealing ring 3 is tightly sealed with the inner wall of the narrowing section 1201 at this time; in addition, as the external lead 4 is continuously inserted into the elastic sealing ring 3, the peripheral wall of the external lead 4 can extrude the elastic sealing ring 3, namely the external lead 4 applies radial pressure from the inner wall of the elastic sealing ring to the outer wall of the elastic sealing ring, and the action of forces is mutual, so that the elastic sealing ring 3 can compress the external lead 4, and the sealing effect between the elastic sealing ring 3 and the external lead 4 is enhanced; because the elastic sealing ring 3 is contacted with the inner wall of the wiring hole 110, the elastic sealing ring 3 can also tightly abut against the inner wall of the wiring hole 110, and the sealing effect between the elastic sealing ring 3 and the inner wall of the wiring hole 110 is enhanced. Thus, multiple sealing effects between the elastic sealing ring 3 and the inner wall of the wire connecting hole 110, between the elastic sealing ring 3 and the placement groove 120 of the inner insulator 12, and between the elastic sealing ring 3 and the external lead 4 can be achieved without additionally sleeving an elastic sealing ring on each external lead.

Claims (10)

1. A high pressure rectangular connector comprising:

the plug structure (1) is provided with a plug shell (11) and an inner insulator (12), wherein at least one plug hole (110) for an external lead (4) to be inserted into is formed in the plug shell (11), the inner insulator (12) is positioned on the inner side of the plug shell (11), and at least one electrical connecting piece (13) is arranged in the inner insulator (12);

the base structure (2) is provided with at least one pin (21), and the pin (21) is matched and electrically connected with the corresponding electric connecting piece (13);

the insulation structure is characterized by further comprising at least one elastic sealing ring (3), a cavity body which is matched with an external lead (4) to be inserted and is provided with holes at two ends is formed in the elastic sealing ring (3), at least one placing groove (120) is formed in the inner insulator (12), the placing groove (120) is provided with a narrowing section (1201) matched with the elastic sealing ring (3) to be pressed in, and the elastic sealing ring (3) is located in the corresponding placing groove (120) and is abutted to the inner wall of the placing groove (120); when the external lead (4) is inserted into the cavity of the elastic sealing ring (3) through the plug hole (110) and the elastic sealing ring (3) is pressed into the narrowing section (1201), the elastic sealing ring (3) is tightly sealed with the inner wall of the narrowing section.

2. The high-pressure rectangular connector as claimed in claim 1, wherein the narrowing section (1201) narrows from a head end of the placement groove (120), i.e. an end close to the plug-in opening (110), towards a tail end of the placement groove (120), i.e. an end remote from the plug-in opening (110).

3. The high-voltage rectangular connector according to claim 1, wherein the inner insulator (12) is fixed inside the plug housing (11) by snap-in.

4. The high-voltage rectangular connector according to claim 3, wherein a latch (121) is formed on a side wall of the inner insulator (12) to be latched to an inside of the plug housing (11).

5. The high pressure rectangular connector according to claim 1, further comprising a fastening screw (5), the fastening screw (5) fastening the inner insulator (12) to an end of the plug housing (11).

6. The high-voltage rectangular connector according to claim 5, wherein the end portion on the plug housing (11) to which the internal insulator (12) is fastened is an end portion near the plug-in hole (110).

7. The high pressure rectangular connector according to any one of claims 1 to 6, wherein said base structure (2) comprises:

the plug comprises a base body (20) which is provided with a groove body (22) which is matched and fastened in a plug shell (11), wherein at least one pin hole (220) is formed in the groove body (22), and the pin (21) is arranged in the pin hole (220);

and the waterproof ring (23) is positioned in the gap between the groove body (22) and the plug shell (11) after being tightly matched.

8. The high-pressure rectangular connector according to claim 7, characterized in that the base structure (2) comprises a waterproof gasket (24), which waterproof gasket (24) is located between the base body (20) and the plug housing (11) and is arranged against the base body (20).

9. The high pressure rectangular connector according to claim 7, wherein the plug housing (11) is formed with a first snap feature (111) and the base body (20) is formed with a second snap feature (211), the first snap feature (111) and the second snap feature (211) being snap-fit to each other.

10. The high pressure rectangular connector according to claim 9, wherein the first snap structure (111) is formed with a manipulation part (112) for releasing the snap-fit state thereof.

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