Waterproof connector

Abstract

The utility model relates to a connector technology, and discloses a waterproof connector, which comprises a male end connector and a female end connector configured with the male end connector, the male end connector is provided with a first sealing element located between a male end shell and a male end rear cover, and the female end connector is provided with a third sealing element located between a female end shell and a female end rear cover. The male end shell comprises an extending part, a counter bore, an inserting cavity and a first concave cavity next to the inserting cavity, the female end shell is provided with a plug, a connecting hole, a rear cover groove and a second concave cavity in the bottom of the plug, the plug is matched with the inserting cavity, and the first concave cavity and the second concave cavity are combined to place a second sealing piece. By means of the technical scheme, the technical problem that the connector is prone to loss in the humid environment is solved, and the technical effect that the connector can work normally in the environment with water is achieved.

Description

Technical Field

[0001] The invention relates to connector technology, and in particular to a waterproof connector. Background Art

[0002] The connector can connect two active devices to transmit current or signals. In order to adapt to more usage environments, it is necessary to enhance the waterproof performance of the connector to ensure good waterproof and dustproof effects, so as to provide normal, safe and reliable power supply and signal transmission in a humid environment. At the same time, today's connectors tend to develop in a high-integration manner, and the internal structure space of the connector is getting smaller and smaller. Therefore, it is necessary to design a waterproof connector to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a waterproof connector to solve the technical problem of connector waterproofing.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A waterproof connector includes a male connector and a female connector configured with the male connector, the male connector is provided with a first seal between the male housing and the male rear cover, the female connector is provided with a third seal between the female housing and the female rear cover, the male housing includes an extension portion, a countersunk hole, an insertion cavity, and a first concave cavity adjacent to the insertion cavity, the female housing is provided with a plug, a connecting hole, a rear cover groove, and a second concave cavity at the bottom of the plug, and when the plug is adapted to the insertion cavity, the first concave cavity and the second concave cavity are combined to place a second seal.

[0006] Preferably: the extension part and the insertion cavity are respectively arranged on both sides of the male end shell, the extension part is a protrusion extending outward from the male end shell, and the extension part is provided with a power through hole, a signal through hole, a buckle, and a groove. The groove surrounds the power through hole and the signal through hole and can place the first seal. The male end back cover is provided with two buckle grooves adapted to the buckles on both sides of the inner wall of the extension part, and the first seal is buckled between the male end shell and the male end back cover.

[0007] Preferably: the plug and the back cover groove are respectively arranged on both sides of the female end shell, the plug is a cylinder protruding from the female end shell and is provided with a power hole and a signal hole, the inner walls of the short sides of the back cover groove are provided with lock buckles, and the bottom of the back cover groove is provided with a waterproof groove, which surrounds the power hole and the signal hole that pass through from one side of the plug to the bottom of the back cover groove, the third sealing member is adapted to the waterproof groove, the lock buckle is adapted to the lock buckle groove of the female end back cover, and the third sealing member is buckled between the female end shell and the female end back cover.

[0008] Preferably: the buckle of the male shell extension has a processing opening perpendicular to the other side of the male shell and adjacent to the first concave cavity, and the buckle of the rear cover groove of the female shell has a molding opening perpendicular to the other side of the female shell and adjacent to the second concave cavity.

[0009] Preferably: countersunk holes are provided at the four corners of the male end housing, the circular ring of the countersunk hole is on one side of the extension part and extends out of the male end housing, the circular groove of the countersunk hole is on one side of the insertion cavity and is sunk into the male end housing, connecting holes are provided at the four corners of the female end housing, the connecting holes are consistent in size with the countersunk holes, the convex ring of the connecting hole is on one side of the rear cover groove and extends out of the female end housing, the cavity of the connecting hole is on one side of the plug, and the cavity is sunk into the female end housing.

[0010] Preferably: the power terminal and the signal terminal are respectively inserted into the insertion cavity through the power through hole and the signal through hole, the power jack and the signal jack are respectively placed in the plug through the power hole and the signal hole, the power terminal is adapted to the power jack, and the signal terminal is adapted to the signal jack.

[0011] Preferably, the power jack and the power terminal are provided with four equidistantly arranged cracks at the plug-in end, and the signal jack and the signal terminal are provided with two equidistantly arranged cracks at the plug-in end.

[0012] Preferably: the diameter of the power terminal is larger than that of the signal terminal, and by changing the diameters of the power terminal and the signal terminal, a current larger than 30A can pass through the power terminal in a single frequency, and a current larger than 2A can pass through the signal terminal in a single frequency.

[0013] Preferably: the anti-mistake portion of the male end housing is located on a short side between the two circular rings, the anti-mistake portion is a rectangular groove recessed into the male end housing, the alignment portion of the female end housing is located between the two cavities, and the side of the female end housing where the alignment portion is located is on the same side as the side of the male end housing where the anti-mistake portion is located.

[0014] Preferably: a hollow cone is extended from the wiring hole which is concentric with the wiring hole of the male end rear cover and has a larger aperture than the wiring hole, the lower bottom circle of the hollow cone and the wiring hole form a stepped hole, a coaxial hollow cylinder is extended from the upper bottom circle of the hollow cone, the hollow cone and the hollow cylinder extend in a direction away from the male end shell side, the number of the threading holes of the female end rear cover is the same as the wiring holes of the male end rear cover and a hollow cone and a hollow cylinder are also extended from the outside, and the extension direction is away from the female end shell side.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] First, the waterproof effect of the connector is enhanced. A first seal is placed between the male end back cover and the male end shell to ensure the waterproof performance of the rear end of the male end shell, a third seal is placed between the female end back cover and the female end shell to ensure the waterproof performance of the rear end of the male end shell, and a second seal is placed between the male connector and the female connector to ensure the waterproof performance between the male and female ends. The coordinated use of the three seals enables the connector to reach IPX6 waterproof level, completely preventing the intrusion of foreign objects and dust, and preventing the impact of immersion for 30 minutes in water up to 1 meter deep.

[0017] The second is to rationally utilize the internal space of the connector to improve the integration of the connector. The processing port of the snap is on the other side of the male shell, and the molding port of the lock is on the other side of the female shell. This processing method will not affect the strength of the connector shell or signal transmission.

[0018] Third, the connector fixing method is selected according to the installation environment. The screw can be inserted into the connecting hole from the countersunk hole. At this time, the nut is placed on the convex ring, and the nut is adapted to the screw and placed in the cavity. The screw can also be passed through from the circular groove side, the nut is placed in the circular groove, the nut is adapted to the screw and placed in the convex ring to fix the male connector, and the other screw is passed through from the cavity side, the nut is placed in the cavity, and the nut is adapted to the screw and placed in the convex ring to fix the female connector. Both fixing methods do not affect the insertion of the male connector and the female connector.

[0019] Fourth, the anti-misplugging design allows quick plug-in of the male connector and the female connector. One of the short sides of the male shell is provided with an anti-misplugging portion sunk into the male shell, and the alignment portion of the female shell is sunk into the female shell. At the same time, the anti-misplugging portion and the alignment portion are in the same straight line. At this time, the recessed direction of the anti-misplugging portion is directed toward the recessed direction of the alignment portion, and the male connector is adapted to the female connector to improve assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0021] Figure 1 is a three-dimensional schematic diagram of this example;

[0022] Figure 2 is a side schematic diagram of this embodiment;

[0023] Figure 3 yes Figure 2 Cross-section view in AA direction;

[0024] Figure 4 is an exploded schematic diagram of the male connector and the female connector of this embodiment;

[0025] Figure 5 is a schematic diagram of the male connector of this example;

[0026] Figure 6 is an exploded schematic diagram of the male connector of this embodiment;

[0027] Figure 7 is a schematic diagram of the female connector of this embodiment;

[0028] Figure 8 is an exploded schematic diagram of the female connector of this embodiment;

[0029] Fig. 9 Schematic diagram of the female housing of this embodiment.

[0030] Brief description of reference numerals:

[0031] 1 male end back cover, 11 buckle groove, 12 wiring hole, 2 first seal, 3 male terminal, 31 power terminal, 32 signal terminal, 4 male end shell, 41 extension, 411 power through hole, 412 signal through hole, 413 buckle, 414 groove, 42 countersunk hole, 421 ring, 422 countersunk surface, 423 screw hole, 43 error prevention part, 44 processing mouth, 45 insertion cavity, 46 first concave cavity, 5 second seal, 6 female end shell, 61 plug, 611 power hole, 612 signal hole, 62 connecting hole, 621 convex ring, 622 cavity, 63 alignment part, 64 second concave cavity, 65 back cover groove, 651 lock, 652 waterproof groove, 7 female end jack, 71 power jack, 711 crack, 72 signal jack, 8 third seal, 9 female end back cover, 91 lock groove, 92 threading hole. DETAILED DESCRIPTION

[0032] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0033] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0034] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0035] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, the indications of these directions also change accordingly.

[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0039] See also Figures 1 to 9 , the figure discloses a waterproof connector, including a male connector and a female connector adapted to the male connector, wherein:

[0040] The male connector comprises a male housing 4, a first sealing member 2, a male terminal 3 inserted into the male housing, and a male back cover 1 buckled in the male housing. A power through-hole 411, a signal through-hole 412, a buckle 413, and a groove 414 are provided in the bottom plate (not marked). In this example, the power through-hole and the signal through-hole are arranged symmetrically with respect to the center, and the aperture of the power through-hole is larger than that of the signal through-hole. Two power through-holes 411 are located on the left and right sides of the bottom plate, four signal through-holes 412 are located on the upper and lower sides of the bottom plate, and another signal through-hole is located between the two power through-holes. Buckles 413 are provided on the two inner side walls of the short side of the extension portion, and the groove 414 surrounds the power through-hole and the signal through-hole.

[0041] The countersunk hole 42 is located between the extension part and the four corners of the male end housing, including a circular ring 421, a countersunk surface 422, and a screw hole 423. The circular ring protrudes from the male end housing and is on the same side as the extension part 41. One side of the screw hole has a circular ring and a countersunk surface, and the other side has a circular groove (not marked). The screw can be passed through the screw hole and placed on the countersunk surface. At this time, the nut is stuck in the circular ring. The screw can also be passed from one side and placed at the bottom of the circular groove. At this time, the nut is stuck in the circular groove. The user can select a suitable fixing direction of the male end connector according to the actual situation. Both fixing methods will not affect the plugging of the male end connector and the female end connector. Even in a vibration environment, the screw is tightly stuck in the male end housing 4 and is not easy to fall off;

[0042] The anti-mistake portion 43 is a rectangular groove located on a short side between the two circular rings, and the concave direction of the rectangular groove is opposite to the convex direction of the extension portion; the insertion cavity 45 is a hollow cylinder for easy insertion of the female connector, and two processing openings 44 are respectively arranged on the left and right sides of the insertion cavity, and the processing openings are the openings of the processing-molded buckle 413, and the first concave cavity 46 is located between the insertion cavity and the processing opening;

[0043] The first sealing member 2 is made of silicone material and can be placed in the groove 414. The male terminal 3 includes a power terminal 31 and a signal terminal 32. The heads of the power terminal and the signal terminal are placed in the insertion cavity 45 through the power through hole and the signal through hole respectively. The rear parts of the power terminal and the signal terminal are respectively inserted into the power through hole 411 and the signal through hole 412. The tails of the power terminal and the signal terminal can be spot welded to the corresponding core wires. The size of the contact area is controlled by setting the apertures of the power terminal and the signal terminal. In this embodiment, the power terminal passes a large current of more than 30A at a single frequency, and the signal terminal passes a current of more than 2A at a single frequency.

[0044] The male rear cover 1 includes a buckle groove 11 and a wiring hole 12. The buckle groove is adapted to the buckle 413, and the male rear cover can be buckled on the male housing 4. A hollow cone extends from the outside of the wiring hole. The diameter of the bottom circle of the hollow cone is larger than the aperture of the wiring hole. A coaxial hollow cylinder extends from the bottom circle of the hollow cone. The corresponding core wire passes through the wiring hole and is spot welded to the tail of the power terminal and the signal terminal. When the male rear cover is buckled on the male housing, the tail of the power terminal and the signal terminal can pass through the corresponding wiring hole and be placed in the crater composed of the hollow cone and the hollow cylinder, and then the crater is filled with rubber, which can improve the waterproof performance between the male connector and the core wire;

[0045] The female connector includes a female housing 6, a female jack 7, a third sealing member 8, and a female rear cover 9 covering the female housing. The female housing is provided with a plug 61, a connection hole 62, an alignment portion 63, and a second concave cavity 64. The plug is a cylindrical body protruding from the female housing and adapted to the insertion cavity 45. A power hole 611 and a signal hole 612 are provided in the plug. The number and arrangement of the power holes are consistent with the power through-holes 411, and the signal holes are consistent with the signal through-holes 412.

[0046] The connection holes 62 are distributed at the four corners of the female housing and include a convex ring 621 and a cavity 622. The cavity and the plug 61 are on the same side. The cavity is sunken into the female housing 6, and the convex ring is on the other side of the plug. The connection hole is the same size as the countersunk hole 42 on the male housing. The screw can pass through the convex ring or the cavity in two directions. At this time, the nut can be placed in the circular ring or the convex ring, so that the female connector can adapt to different installation environments;

[0047] The alignment portion 63 is the same size as the rectangular groove of the anti-mismatch portion, the recessed direction of the alignment portion is consistent with the direction in which the cavity sinks into the female end housing, and the position of the alignment portion in the female end connector is the same as the position of the anti-mismatch portion in the male end connector. At this time, the connector assembler only needs to align the recessed direction of the anti-mismatch portion with the recessed direction of the alignment portion, and the male end connector and the female end connector can be accurately matched;

[0048] The second concave cavity 64 is located at the bottom of the plug 61. The second concave cavity and the first concave cavity 46 can be combined to place the second sealing member 5. The second sealing member wraps the insertion cavity and the plug, thereby enhancing the waterproof performance between the male connector and the female connector.

[0049] The female end jack 7 includes a power jack 71 and a signal jack 72. The heads of the power jack and the signal jack pass through the power hole 611 and the signal hole 612 respectively and are placed inside the plug. The rear parts of the power jack and the signal jack are respectively adapted to the openings of the power hole 611 and the signal hole 612. The tails of the power jack and the signal jack provide positions for spot welding the corresponding core wires. The aperture of the power jack 71 is larger than the aperture of the power terminal 31 and the head is provided with four equidistantly arranged cracks 711 for inserting the power terminal. The aperture of the signal jack is larger than the aperture of the signal terminal 32 and the head is provided with two equidistantly arranged cracks (not marked) for inserting the signal terminal.

[0050] A rear cover groove 65 is provided on the back of the female housing. The rear cover groove is similar to the extension part 41 in structure and is provided with a lock buckle 651 and a waterproof groove 652. However, the height of the rear cover groove is lower than the height of the extension part. The power hole 611 and the signal hole 612 penetrate from one side of the plug 61 to the bottom of the rear cover groove. The waterproof groove 652 is located at the bottom of the rear cover groove and surrounds the power hole 611 and the signal hole 612. The third sealing member 8 is adapted to the waterproof groove to improve the waterproof effect of the female housing and the female rear cover. The female rear cover 9 is provided with a plurality of sealing members on both sides of the short side. There is a lock groove 91 adapted to the lock 651 of the back cover groove, so that the female end back cover is buckled on the female end shell, and the molding opening (not marked) of the lock is set on both sides of the second concave cavity. The female end back cover is similar to the male end back cover, extending a hollow cone and a hollow cylinder. The hollow cone and the hollow cylinder form a crater to place the female end jack. After the core wire is spot welded to the power jack and the signal jack, the female end back cover is buckled onto the female end shell, and then the rubber is filled into the crater to ensure the waterproof performance between the female end back cover and the core wire;

[0051] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0052] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waterproof connector, characterized in that: It includes a male connector and a female connector configured with the male connector, the male connector is provided with a first seal between the male shell and the male back cover, the female connector is provided with a third seal between the female shell and the female back cover, the male shell includes an extension portion, a countersunk hole, an insertion cavity, and a first concave cavity adjacent to the insertion cavity, the female shell is provided with a plug, a connecting hole, a back cover groove, and a second concave cavity at the bottom of the plug, and when the plug is adapted to the insertion cavity, the first concave cavity and the second concave cavity are combined to place the second seal.

2. The waterproof connector according to claim 1, characterized in that: The extension part and the insertion cavity are respectively arranged on both sides of the male end shell. The extension part is a protrusion extending outward from the male end shell. The extension part is provided with a power through hole, a signal through hole, a buckle, and a groove. The groove surrounds the power through hole and the signal through hole and can place the first seal. The male end back cover is provided with two buckle grooves adapted to the buckles on both sides of the inner wall of the extension part, and the first seal is buckled between the male end shell and the male end back cover.

3. The waterproof connector according to claim 2, characterized in that: The plug and the back cover groove are respectively arranged on both sides of the female end shell. The plug is a cylinder protruding from the female end shell and is provided with a power hole and a signal hole. The inner walls on both sides of the short side of the back cover groove are provided with lock buckles. The bottom of the back cover groove is provided with a waterproof groove. The waterproof groove surrounds the power hole and the signal hole that pass through from one side of the plug to the bottom of the back cover groove. The third sealing member is adapted to the waterproof groove, and the lock buckle is adapted to the lock buckle groove of the female end back cover, so that the third sealing member is buckled between the female end shell and the female end back cover.

4. The waterproof connector according to claim 3, characterized in that: The buckle of the male shell extension has a processing opening perpendicular to the other side of the male shell and adjacent to the first concave cavity, and the buckle of the rear cover groove of the female shell has a molding opening perpendicular to the other side of the female shell and adjacent to the second concave cavity.

5. The waterproof connector according to claim 4, characterized in that: Countersunk holes are provided at the four corners of the male end housing, the circular ring of the countersunk hole is on one side of the extension part and extends out of the male end housing, the circular groove of the countersunk hole is on one side of the insertion cavity and is sunk into the male end housing, and connecting holes are provided at the four corners of the female end housing, the connecting hole is consistent in size with the countersunk hole, the convex ring of the connecting hole is on one side of the rear cover groove and extends out of the female end housing, the cavity of the connecting hole is on one side of the plug, and the cavity is sunk into the female end housing.

6. The waterproof connector according to claim 5, characterized in that: The power terminal and the signal terminal are respectively inserted into the insertion cavity through the power through hole and the signal through hole, and the power jack and the signal jack are respectively placed in the plug through the power hole and the signal hole. The power terminal is adapted to the power jack, and the signal terminal is adapted to the signal jack.

7. The waterproof connector according to claim 6, characterized in that: The power socket and the power terminal are provided with four equally spaced cracks at the plug-in end, and the signal socket and the signal terminal are provided with two equally spaced cracks at the plug-in end.

8. The waterproof connector according to claim 7, characterized in that: The diameter of the power terminal is larger than that of the signal terminal. By changing the diameters of the power terminal and the signal terminal, a current larger than 30A can be passed through the power terminal in a single frequency, and a current larger than 2A can be passed through the signal terminal in a single frequency.

9. The waterproof connector according to claim 8, characterized in that: The anti-mistake portion of the male housing is located on a short side between the two circular rings. The anti-mistake portion is a rectangular groove recessed into the male housing. The alignment portion of the female housing is located between the two cavities. The side of the female housing where the alignment portion is located is on the same side as the side of the male housing where the anti-mistake portion is located.

10. The waterproof connector according to claim 9, characterized in that: A hollow cone is extended from the wiring hole of the male end rear cover, which is concentric with the wiring hole and has a larger aperture than the wiring hole. The lower bottom circle of the hollow cone forms a stepped hole with the wiring hole. A coaxial hollow cylinder is extended from the upper bottom circle of the hollow cone. The hollow cone and the hollow cylinder extend in a direction away from the male end shell. The number of the threading holes of the female end rear cover is the same as that of the wiring holes of the male end rear cover, and a hollow cone and a hollow cylinder are also extended from the outer side, which extend in a direction away from the female end shell.

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