Waterproof connector

Abstract

The utility model provides a waterproof connector, which comprises an insulating shell and a plurality of contact elements held by the insulating shell, and the insulating shell is provided with an embedding opening embedded with a paired connector in a first direction. The insulating shell comprises a body part and a flange part located on the front end side of the body part. The flange part is provided with a front surface and a rear surface which are opposite to each other in the first direction. A first fixing means and a second fixing means are integrally formed on the front surface and the rear surface of the flange portion respectively, the mating connector is fixed to the front surface of the flange portion through the first fixing means, and the flange portion is fixed to a plate through the second fixing means. According to the utility model, the insulating shell of the waterproof connector can be manufactured in a low-cost mode.

Description

Technical Field

[0001] The utility model relates to a connector, especially a waterproof connector. Background Art

[0002] Chinese Patent Invention CN103326176A (hereinafter referred to as "Patent Document 1") discloses a waterproof and sealed electrical connector. In order to improve the torque that the nut can withstand or the anti-rotation ability of the nut, an embedded nut is adopted in the waterproof and sealed electrical connector of Patent Document 1. Although the embedded nut has good anti-rotation ability and can withstand a large torque, the connector with an embedded nut not only requires more parts but also needs to be produced by additional manufacturing processes. This will result in an increase in the manufacturing cost and manufacturing man-hours of the connector. Summary of the Utility Model

[0003] One of the purposes of the utility model is to provide a waterproof connector, which can be manufactured at a low cost.

[0004] Another purpose of the utility model is to provide a waterproof connector, the insulating housing of which is integrally formed with fixing means, especially screw holes or studs.

[0005] Another purpose of the utility model is to provide a waterproof connector with multiple waterproof structures, which can greatly improve the waterproof performance.

[0006] According to the solution of the utility model, a waterproof connector is provided, which includes an insulating housing and a plurality of contacts held by the insulating housing. The insulating housing has a fitting opening for fitting with a mating connector in a first direction. The insulating housing includes a body portion and a flange portion located on the front end side of the body portion.

[0007] The flange portion has a front surface and a rear surface opposite to each other in the first direction. A first fixing means and a second fixing means are integrally formed on the front surface and the rear surface of the flange portion respectively. The first fixing means and the second fixing means extend in the first direction. The mating connector is fixed to the front surface of the flange portion through the first fixing means, and the flange portion is fixed to a plate member through the second fixing means.

[0008] In the waterproof connector according to the utility model, the first fixing means includes a pair of screw holes or a pair of studs.

[0009] In the waterproof connector according to the utility model, the second fixing means includes a pair of studs or a pair of screw holes.

[0010] In the waterproof connector according to the utility model, the first fixing means includes two screw holes, and the second fixing means includes two studs.

[0011] According to the waterproof connector of the present utility model, the two screw holes are respectively positioned on both sides of the fitting opening.

[0012] According to the waterproof connector of the present utility model, the plate member is a part of the housing.

[0013] According to the waterproof connector of the present utility model, the first fixing means and the second fixing means are integrally formed with the insulating housing by injection molding.

[0014] According to the waterproof connector of the present utility model, the waterproof connector further includes a sealing ring. A circular groove is formed on the front surface of the flange portion, and the sealing ring is disposed in the circular groove.

[0015] According to the waterproof connector of the present utility model, the waterproof connector further includes a first waterproof gasket, and the first waterproof gasket is clamped between the rear surface of the flange portion and the plate member.

[0016] According to the waterproof connector of the present utility model, the waterproof connector further includes a second waterproof gasket. The second waterproof gasket is disposed in the fitting opening. In a state where the waterproof connector is fitted with the mating connector, the end portion of the fitting portion of the mating connector presses against the second waterproof gasket.

[0017] According to the waterproof connector of the present utility model, the first fixing means and the second fixing means are integrally formed on the flange portion of the insulating housing. This can not only reduce the number of parts required for assembling the connector, but also omit the manufacturing process of embedding nuts in the insulating housing in the conventional technology. Therefore, the board-end waterproof connector of the present utility model can suppress the increase in the manufacturing cost and manufacturing time of the connector.

[0018] Those with ordinary technical knowledge in the technical field to which the present utility model belongs will be able to best understand the technical features and other purposes and advantages of the present utility model after referring to the specification and drawings of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of a waterproof connector assembly installed on a plate member according to an embodiment of the present utility model.

[0020] Figure 2 is an exploded perspective view of a waterproof connector assembly according to an embodiment of the present utility model.

[0021] Figure 3 is a perspective view of a waterproof connector according to an embodiment of the present utility model.

[0022] Figure 4 is an exploded perspective view of a waterproof connector according to an embodiment of the present utility model.

[0023] Figure 5It is a perspective view of an insulating housing of a waterproof connector according to an embodiment of the present invention.

[0024] Figure 6 It is a front view of an insulating housing of a waterproof connector according to an embodiment of the present invention.

[0025] Figure 7 It is a rear view of an insulating housing of a waterproof connector according to an embodiment of the present invention.

[0026] Figure 8 It is a sectional view taken along line AA in Figure 6 the figure.

[0027] Description of Reference Numerals

[0028] 1: Waterproof connector assembly

[0029] 10: Board - end waterproof connector

[0030] 11: Insulating housing

[0031] 110: Fitting opening

[0032] 111: Body part

[0033] 1110: Assembly nail retaining hole

[0034] 112: Flange part

[0035] 1121: Threaded hole

[0036] 1122: Stud

[0037] 1123: Annular groove

[0038] 12: Contact

[0039] 13: Assembly nail

[0040] 14: First waterproof washer

[0041] 15: Second waterproof washer

[0042] 16: Sealing ring

[0043] 17: Nut

[0044] 20: Wire - end waterproof connector

[0045] 21: Screw

[0046] 22: O - ring

[0047] 30: Plate

[0048] D1: First direction

[0049] D2: Second direction

[0050] D3: The third direction. Detailed implementation manners

[0051] The waterproof connector assembly according to the embodiments of the present utility model will be described below with reference to the accompanying drawings. In the drawings, the same elements or elements having the same functions are denoted by the same reference numerals. The drawings are not drawn to scale.

[0052] Figure 1 is a perspective view of the waterproof connector assembly according to the embodiments of the present utility model mounted on a board. The waterproof connector assembly as a whole is denoted by the reference numeral 1. The waterproof connector assembly 1 is specifically implemented as a wire-to-board connector assembly, including a board-end waterproof connector 10 and a wire-end waterproof connector 20. The waterproof connector assembly 1 is mounted on the board 30. The board 30 can be a part of the housing, and an electronic device is housed in the housing. The waterproof connector assembly 1 can be used to transmit signals and / or power between the electronic device housed in the housing and the electronic device outside the housing.

[0053] Figure 2 is an exploded perspective view of the waterproof connector assembly 1 according to the embodiments of the present utility model. The board-end waterproof connector 10 is fixed to the board 30 by a first fixing means (to be described below). The fitting portion of the wire-end waterproof connector 20 is inserted into the fitting opening of the board-end waterproof connector 10 and is fixed to the board-end waterproof connector 10 by a second fixing means (to be described below). For the purpose of waterproofing, a first waterproof gasket 14 is disposed between the board 30 and the board-end waterproof connector 10, and a second waterproof gasket 15 and a sealing ring 16 are disposed between the board-end waterproof connector 10 and the wire-end waterproof connector 20.

[0054] Figure 3 is a perspective view of the board-end waterproof connector 10 according to the embodiments of the present utility model, Figure 4 is an exploded perspective view of the board-end waterproof connector 10 according to the embodiments of the present utility model. Refer to Figure 3 and Figure 4 to illustrate the components of the board-end waterproof connector 10 according to the embodiments of the present utility model. The board-end waterproof connector 10 includes an insulating housing 11, a plurality of contacts 12 held by the insulating housing 11, and two fitting pins 13 fixed to the bottom surface of the insulating housing 11.

[0055] The insulating housing 11 is made of an insulating resin or polymer material by injection molding. The insulating housing 11 has a fitting opening 110 into which the fitting portion of the wire-end waterproof connector 20, which is a mating connector, can be inserted along the first direction D1 (fitting direction). The contact member 12 is made of copper or a copper alloy. The contact members 12 are arranged in two columns along a second direction D2 (width direction) perpendicular to the first direction D1. The two columns of contact members 12 are spaced apart in a third direction D3 (height direction), and the third direction D3 is perpendicular to the first direction D1 and the second direction D2. The contact portions of the contact members 12 are positioned in the fitting opening 110 so as to be in electrical contact with the contact members of the wire-end waterproof connector 20 when the fitting portion of the wire-end waterproof connector 20 is inserted into the fitting opening 110. The assembly pins 13 are made of copper, a copper alloy, or stainless steel.

[0056] Figure 5 is a perspective view of the insulating housing 11, Figure 6 is a front view of the insulating housing 11, Figure 7 is a rear view of the insulating housing 11, and Figure 8 is along Figure 6 the sectional view taken along the line AA in Figures 5 to 8 to illustrate the structure of the insulating housing 11.

[0057] The insulating housing 11 includes a body portion 111 and a flange portion 112 formed at the front end of the body portion 111. The flange portion 112 has a front surface and a rear surface facing each other. Two screw holes 1121 with internal threads are formed on the front surface of the flange portion 112 as a first fixing means. The two screw holes 1121 are respectively positioned on both sides of the fitting opening 110. Two studs 1122 with external threads are formed on the rear surface of the flange portion 112 as a second fixing means. The screw holes 1121 and the studs 1122 extend along the first direction D1. In other words, the central axes of the screw holes 1121 and the studs 1122 are parallel to the first direction D1.

[0058] Two assembly pin holding holes 1110 are formed on the bottom surface of the insulating housing 11. The assembly pins 13 are press-fitted into the assembly pin holding holes 1110 so that the assembly pins 13 are held by the insulating housing 11. The board-end waterproof connector 10 is mounted on a circuit board (not shown) by welding the assembly pins 13 and the solder feet of the contact members 12 to the circuit board.

[0059] By the studs 1122 and nuts 17 (shown in Figure 2 ), the board-end waterproof connector 10 is water-tightly locked to the board member 30 in such a way that the first waterproof gasket 14 is clamped between the rear surface of the flange portion 112 and the board member 30.

[0060] A ring groove 1123 is formed on the front surface of the flange portion 112 substantially along the outer contour of the flange portion 112. The sealing ring 16 is disposed in the ring groove 1123. A second waterproof gasket 15 is disposed in the fitting opening 110 of the insulating housing 11. In the state where the board-end waterproof connector 10 and the wire-end waterproof connector 20 are fitted to each other as shown in Figure 1 , the sealing ring 16 is clamped between the flange portion 112 of the insulating housing 11 of the board-end waterproof connector 10 and the flange portion of the insulating housing of the wire-end waterproof connector 20, and the end of the fitting portion of the wire-end waterproof connector 20 presses against the second waterproof gasket 15 disposed in the fitting opening 110. The wire-end waterproof connector 20 is fixed to the board-end waterproof connector 10 by the screw hole 1121 and the screw 21 engaged with the screw hole 1121. Specifically, the threaded shank portion of the screw 21 sequentially passes through the O-ring 22 and the perforation formed in the flange portion of the wire-end waterproof connector 20 and is screwed into the screw hole 1121 formed on the front surface of the flange portion 112 of the insulating housing 11. In this way, the wire-end waterproof connector 20 is water-tightly locked to the board-end waterproof connector 10.

[0061] A multi-layer waterproof structure is used to prevent water from invading from one side of the board member 30 to the other side of the board member 30 via the board-end waterproof connector 10 and the wire-end waterproof connector 20.

[0062] The advantages of the board-end waterproof connector of the present utility model are that the first fixing means and the second fixing means are integrally formed in the flange portion of the insulating housing by injection molding. On the one hand, the number of parts required for assembling the connector can be reduced. On the other hand, the manufacturing process of embedding a nut in the insulating housing as in the traditional technology can be omitted. Therefore, the board-end waterproof connector of the present utility model can suppress the increase in the manufacturing cost and manufacturing time of the connector. This is very beneficial to the cost and working hours.

[0063] Although in the above embodiments, the first fixing means is specifically implemented as a screw hole and the second fixing means is specifically implemented as a stud, the waterproof connector according to the present utility model is not limited thereto. The first fixing means can also be specifically implemented as a stud, and the second fixing means can also be specifically implemented as a screw hole. Or, both the first fixing means and the second fixing means can be specifically implemented as screw holes or studs.

[0064] Although the present utility model is described and demonstrated with reference to the preferred embodiments, it should be understood that within the spirit and scope of the present utility model, many changes and modifications can still be made by those with ordinary technical knowledge in the technical field to which the present utility model belongs. Therefore, the present utility model is not limited to the described embodiments, but is based on the literal description of the claims. That is, equivalent changes and modifications made without departing from the scope of the patent application of the present utility model should still fall within the scope covered by the present utility model.

Claims

1. A waterproof connector, characterized in that, It includes an insulating housing and a plurality of contacts held by the insulating housing. The insulating housing has a mating opening for mating with a mating connector in a first direction. The insulating housing includes a body portion and a flange portion located on the front end side of the body portion. The flange portion has a front surface and a rear surface that face each other in the first direction. A first fixing means and a second fixing means are integrally formed on the front surface and the rear surface of the flange portion respectively. The first fixing means and the second fixing means extend in the first direction. The mating connector is fixed to the front surface of the flange portion by the first fixing means, and the flange portion is fixed to a plate member by the second fixing means.

2. The waterproof connector according to claim 1, wherein The first fixing means includes a pair of screw holes or a pair of studs.

3. The waterproof connector according to claim 1, characterized in that, The second fixing means includes a pair of studs or a pair of screw holes.

4. The waterproof connector according to claim 1, wherein, The first fixing means includes two screw holes, and the second fixing means includes two studs.

5. The waterproof connector according to claim 4, characterized in that, The two screw holes are respectively positioned on both sides of the mating opening.

6. The waterproof connector according to claim 1, characterized in that, The plate member is a part of the chassis.

7. The waterproof connector according to any one of claims 1 to 4, characterized in that, The first fixing means and the second fixing means are integrally formed with the insulating housing by injection molding.

8. The waterproof connector according to any one of claims 1 to 4, characterized in that The waterproof connector further includes a sealing ring. A circular groove is formed on the front surface of the flange portion, and the sealing ring is disposed in the circular groove.

9. The waterproof connector according to any one of claims 1 to 4, characterized in that, The waterproof connector further includes a first waterproof gasket, and the first waterproof gasket is clamped between the rear surface of the flange portion and the plate member.

10. The waterproof connector according to claim 8, characterized in that, The waterproof connector further includes a second waterproof gasket. The second waterproof gasket is disposed in the mating opening. In a state where the waterproof connector is mated with the mating connector, the end of the mating portion of the mating connector presses against the second waterproof gasket.

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