CN217062647U

CN217062647U - Waterproof power connector

Info

Publication number: CN217062647U
Application number: CN202220660635.4U
Authority: CN
Inventors: 李雁梅; 胡芬; 谭威明; 高海明
Original assignee: Guangdong Huijie Electric Power Group Co Ltd; Guangdong Huijie Digital Research Institute
Current assignee: Guangdong Huijie Electric Power Group Co Ltd; Guangdong Huijie Digital Research Institute
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-26
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a waterproof type power connector, include: a housing provided with a through hole penetrating in a front-rear direction; the first sleeve is arranged inside the shell and provided with a first through hole which is communicated along the front-back direction, a first conical thread section is arranged on the inner side wall of the first through hole, and the aperture of the first conical thread section is gradually reduced from front to back; the second sleeve is provided with a second through hole which is communicated along the front-back direction, the inner side wall of the second through hole is provided with a second taper thread section, the aperture of the second taper thread section is gradually increased from front to back, and the front end of the second sleeve is hermetically connected with the rear end of the first sleeve. The utility model discloses a waterproof type power connector, power device's wire and electron device's plug are protected by first sleeve and the telescopic sealed of second, improve waterproof type power connector greatly to the sealed effect of tie point. The utility model discloses can be applied to in the power connector field.

Description

Waterproof power connector

Technical Field

The utility model relates to a power connector field, in particular to waterproof type power connector.

Background

The power connector is used for connecting the power device and the electronic device so that the power device and the electronic device can transmit power. At present, a wire of a power device is pressed by a screw through a wiring terminal at the rear end of the existing power connector, so that the power connector is connected with the power device, a jack is arranged at the front end of the power connector, a plug matched with the jack is arranged on an electronic device, and the plug of the electronic device can be rapidly connected into the jack of the power connector. However, the terminals and jacks of the conventional power connector are exposed outside, and the power connector has a potential safety hazard of electric leakage in a humid environment.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a waterproof power connector to solve one or more problems of the prior art, and at least provide a useful choice or creation condition.

The technical scheme adopted for solving the technical problems is as follows:

a water-resistant power connector comprising:

a housing provided with a through hole penetrating in a front-rear direction;

the first sleeve is arranged inside the shell and provided with a first through hole which is communicated along the front-back direction, a first conical thread section is arranged on the inner side wall of the first through hole, and the aperture of the first conical thread section is gradually reduced from front to back;

the second sleeve is provided with a second through hole which is communicated along the front-back direction, the inner side wall of the second through hole is provided with a second conical thread section, the aperture of the second conical thread section is gradually increased from front to back, and the front end of the second sleeve is connected to the rear end of the first sleeve in a sealing mode.

The utility model has the advantages that: the first sleeve is arranged in the shell, a plug of the electronic device is inserted into the through hole at the front end of the shell, the plug is inserted into the first through hole from the front end of the first sleeve, and the inner side wall of the first through hole is provided with a first conical thread section of which the hole diameter is gradually reduced from front to back; a lead of the power device is inserted into the second through hole from the rear end of the second sleeve, and because the inner side wall of the second through hole is provided with a second conical thread section of which the aperture is gradually increased from front to back, the lead is rotated to enable the second conical thread section to extrude the outer skin of the lead to enable the outer skin to form a conical thread groove, and a sealed conical thread connecting structure is formed between the outer skin of the lead and the second conical thread section; the wire of the power device and the plug of the electronic device are protected by the first sleeve and the second sleeve in a sealing mode, and the sealing effect of the waterproof power connector on the connection point is greatly improved.

As a further improvement of the above technical solution, the inner side wall of the first through hole is provided with a first inner thread section, the first inner thread section is located at the rear end of the first through hole, the outer side wall of the front end of the second sleeve is provided with a second outer thread section, and the second outer thread section is connected with the first inner thread section in a matching manner.

The second external thread section of second sleeve front end lateral wall is connected with the first internal thread section cooperation of first through-hole inside wall, makes first sleeve more convenient with the telescopic dismantlement of second and is connected, when needing to be changed power device, can directly dismantle the second sleeve, changes the inside wire of second sleeve alone again.

As a further improvement of the above technical solution, the first through hole is provided with an accommodating section, and the accommodating section is located between the first tapered thread section and the first internal thread section.

The accommodating section is located between the first conical thread section and the first internal thread section, when the second external thread section of the second sleeve is screwed into the first internal thread section of the first sleeve, the wire of the power device can extend into the accommodating section of the first through hole from the rear end, the plug of the electronic device extends into the accommodating section of the first through hole from the front end, and the wire of the power device is in contact with the plug of the electronic device in the accommodating section, so that the contact between the connecting point and the inner wall of the first through hole is avoided to cause the increase of heat productivity.

As a further improvement of the technical scheme, the hole diameter of the first internal thread section is gradually increased from front to back, and the shape of the second external thread section is matched with that of the first internal thread section.

The first internal thread section is in taper thread, and the second external thread section is in taper thread fit with the first internal thread section, so that the sealing performance between the first sleeve and the second sleeve is improved.

As a further improvement of the above technical solution, the inner side wall of the first through hole is provided with a first step, the first step is located at the front end of the first through hole, and the aperture of the first step is larger than the aperture of the front end of the first tapered thread section.

The front end of the first through hole is provided with a first stage, a plug of the electronic device is inserted into the first stage from the front end, the plug of the electronic device is limited in the first stage, the plug is prevented from being inserted into the second through hole of the second sleeve too deeply, and the power device wire in the second through hole is prevented from being extruded out by the plug.

As a further improvement of the above technical solution, the waterproof power connector further includes a first sealing ring, and the first sealing ring is disposed in the first stage.

Before the plug of the electronic device is inserted into the first stage, the first sealing ring is sleeved outside the plug, and then the plug is inserted into the first stage, and the first sealing ring is arranged in the first stage and is beneficial to sealing a gap between the first stage and the plug.

As a further improvement of the above technical solution, the waterproof power connector further includes a third sleeve, and the third sleeve is detachably disposed in the first stage in a penetrating manner, and a rear end of the third sleeve abuts against the first sealing ring.

Before the plug of the electronic device is inserted into the first stage, the third sleeve and the first sealing ring are sleeved outside the plug, after the plug is inserted into the first stage, the third sleeve is arranged in the first stage in a penetrating mode, the rear end of the third sleeve abuts against the first sealing ring, and therefore the first sealing ring is prevented from being separated from the first stage.

As a further improvement of the above technical solution, the inner side wall of the second through hole is provided with a second step, the second step is located at the rear end of the second through hole, and the aperture of the second step is larger than the aperture of the rear end of the second taper thread section.

The second through-hole rear end is equipped with the second stage, and power device's wire inserts the second stage from the rear end, and the second stage is spacing to the end of wire, makes wire and second sleeve relative rotation again this moment, can ensure that the wire is in the telescopic inside of second.

As a further improvement of the above technical solution, the waterproof power connector further includes a second sealing ring and a fourth sleeve, the second sealing ring is disposed in the second stage, the fourth sleeve is detachably disposed in the second stage in a penetrating manner, and a front end of the fourth sleeve abuts against the second sealing ring.

Before the wire of the power device is inserted into the second stage, the fourth sleeve and the second sealing ring are sleeved outside the wire, after the wire is inserted into the second stage, the fourth sleeve is used for penetrating the second stage, the front end of the fourth sleeve abuts against the second sealing ring to prevent the second sealing ring from being separated from the first stage, and the second sealing ring seals a gap between the outer surface of the wire and the first stage.

As a further improvement of the above technical solution, a rear end of the first sleeve extends out of a rear of the housing.

The rear end of the first sleeve extends out of the rear of the shell, so that a lead of the power device can be conveniently inserted into the second through hole of the second sleeve at the rear of the shell.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of a waterproof power connector provided in the present invention;

fig. 2 is an exploded view of an embodiment of the waterproof power connector provided in the present invention;

fig. 3 is a schematic cross-sectional view of an exploded embodiment of the waterproof power connector of the present invention;

fig. 4 is a schematic cross-sectional view of the assembly of the first sleeve and the second sleeve in one embodiment of the waterproof power connector provided by the present invention.

10. The sealing device comprises a shell, 100, a first sleeve, 110, a first through hole, 111, a first conical threaded section, 112, a first internal threaded section, 113, an accommodating section, 115, a first stage, 200, a second sleeve, 210, a second through hole, 211, a second conical threaded section, 212, a second stage, 220, a second external threaded section, 300, a first sealing ring, 400, a third sleeve, 500, a second sealing ring, 600 and a fourth sleeve.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, the waterproof power connector of the present invention is made as follows:

the waterproof power connector includes a housing 10, a first sleeve 100, a second sleeve 200, a first seal ring 300, a third sleeve 400, a second seal ring 500, and a fourth sleeve 600.

The housing 10 is provided with a through hole penetrating from front to back, a chamber for accommodating the first sleeve 100 is provided inside the housing 10, and the housing 10 is made of an insulating material. The front end of the shell 10 is provided with an openable end cover which covers the front end of the through hole. First sleeve 100 sets up in the inside of casing 10, and the front end of first sleeve 100 is located the through-hole, and the rear end that the through-hole was passed to the rear end of first sleeve 100 stretches out in the rear of casing 10, pours into epoxy between the inside wall of first sleeve 100 and casing 10, makes epoxy fill the space between the lateral wall of first sleeve 100 and the inside wall of casing 10, heats casing 10, makes the epoxy solidification.

The first sleeve 100 is of a cylindrical structure, a first through hole 110 which is through in the front-back direction is formed in the middle of the first sleeve 100, and the first through hole 110 is sequentially divided into a first stage 115, a first conical thread section 111, an accommodating section 113 and a first internal thread section 112 from front to back. The first stage 115 is a cylindrical hole, the first conical thread section 111 is a conical hole, the aperture of the first conical thread section 111 is gradually reduced from front to back, the aperture of the first stage 115 is larger than that of the front end of the first conical thread section 111, and a step is formed between the first stage 115 and the first conical thread section 111. The receiving section 113 is located between the first tapered thread section 111 and the first internal thread section 112, and the receiving section 113 is a cylindrical hole. The first internal thread section 112 is a conical bore, and the bore diameter of the first internal thread section 112 gradually increases from front to back.

The second sleeve 200 is a conical tubular structure, a second through hole 210 penetrating in the front-back direction is formed in the middle of the second sleeve 200, and the second through hole 210 is divided into a second taper thread section 211 and a second stage 212 from front to back in sequence. The second taper thread section 211 is a conical hole, the hole diameter of the second taper thread section 211 is gradually increased from front to back, and the hole diameter of the second step section 212 is larger than the hole diameter of the rear end of the second taper thread section 211, so that a step is formed between the second step section 212 and the second taper thread section 211. The outer side wall of the front end of the second sleeve 200 is provided with a second external thread section 220, and the outer diameter of the second external thread section 220 is gradually increased from front to back.

The shape of the second external thread section 220 matches the shape of the first internal thread section 112, the front end of the second sleeve 200 is inserted into the rear end of the first through hole 110, and the second external thread section 220 is in threaded connection with the first internal thread section 112.

The first seal ring 300 is arranged in the first stage 115, the shape of the rear end of the third sleeve 400 is matched with the shape of the first stage 115, the rear end of the third sleeve 400 is inserted into the first stage 115, and the rear end of the third sleeve 400 is abutted against the first seal ring 300, so that the first seal ring 300 is extruded to a step between the first stage 115 and the front end of the first tapered thread section 111. The second seal ring 500 is disposed in the second stage 212, the shape of the front end of the fourth sleeve 600 matches the shape of the second stage 212, the front end of the fourth sleeve 600 is inserted into the second stage 212, and the front end of the fourth sleeve 600 abuts against the second seal ring 500, so that the second seal ring 500 is pressed to a step between the second stage 212 and the rear end of the second taper thread section 211.

The appearance of electron device's plug is the toper, and the lateral wall of plug is equipped with the awl screw thread, and the awl screw thread matches with first awl screw thread section 111.

When the waterproof power connector is connected with a wire of an electric power device, the front end of the second sleeve 200 is separated from the rear end of the first sleeve 100, the second sealing ring 500 and the fourth sleeve 600 are disassembled, the fourth sleeve 600 and the second sealing ring 500 are sleeved outside the wire, the wire is inserted into the second stage 212 of the second through hole 210 from the rear end, then the wire is screwed into the second conical threaded section 211, the second conical threaded section 211 enables the insulating outer skin of the wire to form a conical threaded groove, so that the wire and the second conical threaded section 211 form a sealed conical threaded connection structure, then the fourth sleeve 600 is pushed forwards to move forwards and extrude the second sealing ring 500 to be inserted into the second stage 212, so that the second sealing ring 500 seals a gap between the outer skin of the wire and the second step section 212, finally the second sleeve 200 is screwed into the first sleeve 100, so that the second outer threaded section 220 of the second sleeve 200 is in fit connection with the first inner threaded section 112 of the first sleeve 100, the copper core of the wire extends into the receiving section 113 of the first sleeve 100. Then, the end cap of the housing 10 is opened, the front end of the first sleeve 100 is exposed, the third sleeve 400 and the first sealing ring 300 are disassembled, the third sleeve 400 and the first sealing ring 300 are sleeved outside the plug of the electronic device, the plug is inserted into the first stage 115, the plug is rotated to enable the tapered threads to be matched with the first tapered thread section 111, the plug and the first sleeve 100 form a sealed tapered thread connection structure, the plug extends into the accommodating section 113 of the first sleeve 100, the plug of the electronic device is abutted against and electrically connected with a lead of the electric device, then the third sleeve 400 is pushed backwards to move backwards and extrude the first sealing ring 300 to be inserted into the first stage 115, and the first sealing ring 300 is enabled to seal a gap between the outer wall of the plug and the first stage 115.

In some embodiments, the first sleeve 100 and the second sleeve 200 can be connected in various ways, for example, an annular fastening position is arranged on the inner side wall of the rear end of the first through hole 110, the annular fastening position surrounds one circle of the circumference of the first through hole 110, an annular buckle is arranged on the outer side wall of the front end of the second sleeve 200, the annular buckle surrounds one circle of the outer side wall of the second sleeve 200, and the annular buckle cooperates with the annular fastening position to make the second sleeve 200 and the first sleeve 100 be in sealing clamping connection; or, the front end of the second sleeve 200 is inserted into the rear end of the first through hole 110, and the second sleeve 200 is in interference fit with the first through hole 110.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A waterproof power connector is characterized in that: the method comprises the following steps:

a housing (10) provided with a through hole that penetrates in the front-rear direction;

the first sleeve (100) is arranged inside the shell (10), the first sleeve (100) is provided with a first through hole (110) which penetrates along the front-back direction, the inner side wall of the first through hole (110) is provided with a first conical threaded section (111), and the aperture of the first conical threaded section (111) is gradually reduced from front to back;

the second sleeve (200) is provided with a second through hole (210) which penetrates through the second sleeve along the front-back direction, the inner side wall of the second through hole (210) is provided with a second conical thread section (211), the aperture of the second conical thread section (211) is gradually increased from front to back, and the front end of the second sleeve (200) is connected to the rear end of the first sleeve (100) in a sealing mode.

2. The waterproof power connector according to claim 1, characterized in that: the inner side wall of the first through hole (110) is provided with a first inner thread section (112), the first inner thread section (112) is located at the rear end of the first through hole (110), the outer side wall of the front end of the second sleeve (200) is provided with a second outer thread section (220), and the second outer thread section (220) is connected with the first inner thread section (112) in a matched mode.

3. The waterproof power connector according to claim 2, characterized in that: the first through hole (110) is provided with an accommodating section (113), and the accommodating section (113) is located between the first conical thread section (111) and the first internal thread section (112).

4. The waterproof power connector according to claim 2, characterized in that: the aperture of the first inner thread section (112) is gradually increased from front to back, and the shape of the second outer thread section (220) is matched with that of the first inner thread section (112).

5. The waterproof power connector according to claim 1, characterized in that: the inner side wall of the first through hole (110) is provided with a first stage (115), the first stage (115) is located at the front end of the first through hole (110), and the aperture of the first stage (115) is larger than that of the front end of the first conical threaded section (111).

6. The waterproof power connector according to claim 5, characterized in that: the waterproof power connector further comprises a first sealing ring (300), the first sealing ring (300) being arranged in the first stage (115).

7. The waterproof power connector according to claim 6, characterized in that: the waterproof power connector further comprises a third sleeve (400), the third sleeve (400) is detachably arranged in the first stage (115) in a penetrating mode, and the rear end of the third sleeve (400) abuts against the first sealing ring (300).

8. The waterproof power connector according to claim 1, characterized in that: the inner side wall of the second through hole (210) is provided with a second stage (212), the second stage (212) is located at the rear end of the second through hole (210), and the aperture of the second stage (212) is larger than that of the rear end of the second taper thread section (211).

9. The waterproof power connector according to claim 8, characterized in that: the waterproof power connector further comprises a second sealing ring (500) and a fourth sleeve (600), the second sealing ring (500) is arranged in the second stage (212), the fourth sleeve (600) is detachably arranged in the second stage (212) in a penetrating mode, and the front end of the fourth sleeve (600) abuts against the second sealing ring (500).

10. The waterproof power connector according to claim 1, characterized in that: the rear end of the first sleeve (100) extends out of the rear of the shell (10).