Connector structure

Abstract

The utility model relates to the technical field of connectors, and discloses a connector structure which comprises a connector shell, a crater rear cover matched with the connector shell, a waterproof ring and a contact assembly, the crater rear cover is provided with a power line penetrating hole and a signal line penetrating hole, and the crater rear cover extends out of a power crater and a signal crater. The power source crater is provided with a hollow circular truncated cone and a hollow cylinder, the diameter of the lower bottom circle of the hollow circular truncated cone is larger than that of the power line penetrating hole, and the upper bottom circle of the hollow circular truncated cone extends out of the hollow cylinder. The signal crater and the power crater have the same structure, and the heights of the extended hollow circular truncated cone and the hollow cylinder are respectively the same as the extension heights of the hollow circular truncated cone and the hollow cylinder of the power crater. According to the technical scheme, the technical problem that the wire core of the connector is easy to break in a vibration environment is solved, and the service life of the connector is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a connector structure. Background Art

[0002] Large mechanical equipment often generates large dynamic loads and noise during operation, resulting in vibration. Connectors used in large mechanical equipment are in a vibration environment for a long time, which causes the core wires inside the connector to break and short-circuit easily, affecting normal use. Therefore, it is necessary to design a connector structure 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 connector structure to solve the technical problem of using the connector in a vibration environment.

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

[0005] A connector structure includes a connector shell, a crater back cover adapted for the connector shell, a waterproof ring, and a contact assembly, characterized in that: the crater back cover is provided with a power cord through-hole, a signal cord through-hole, a power crater and a signal crater extending from the crater back cover, the power crater and the power cord through-hole are concentric axes, the signal crater and the signal cord through-hole are concentric axes, the power crater is respectively arranged on the left and right sides of the crater back cover, the signal crater is located on the upper and lower sides of the crater back cover and between the two power craters, the power crater has a hollow cone and a hollow cylinder, the diameter of the lower bottom circle of the hollow cone is larger than the diameter of the power cord through-hole, and the upper bottom circle thereof extends out of a hollow cylinder, the signal crater has the same structure as the power crater, and the heights of the extended hollow cone and hollow cylinder are respectively the same as the extended heights of the hollow cone and hollow cylinder of the power crater.

[0006] Preferably: the crater and the buckle slot are on one side, and the buckle slots are respectively arranged on the short sides of the crater back cover and are close to the power crater.

[0007] Preferably: the power line perforations and the signal line perforations are through holes, the power line perforations appear in pairs on both sides of the short side of the crater back cover, the number of signal line perforations is the same as the number of signal craters, the aperture of the power line perforations is larger than the aperture of the signal line perforations, and the corresponding power crater aperture is larger than the signal crater aperture.

[0008] Preferably: the connector housing is provided with a base plate, one side of the base plate is a mounting groove, and the other side is an insertion cavity. The mounting groove is an octagonal prism adapted to the crater back cover. The mounting groove is provided with a recessed portion adapted to the power hole and signal hole of the contact assembly. The contact assembly is assembled into the insertion cavity through the power hole and the signal hole.

[0009] Preferably: the contact assembly contains a power terminal and a signal terminal, the power terminal and the signal terminal have the same structure, including a contact end, a stopper and a welding point, the contact end and the welding point are the same cylinder, the top of the contact end away from the welding point is processed into an arc, the welding point is provided with a U-shaped opening to place the corresponding core wire, the stopper is between the contact end and the welding point, the stopper is a cylinder, the diameter of the bottom circle is larger than the diameter of the bottom circle of the contact end to form a step surface, and a cross section of the cylinder of the stopper is cut off to form a plane.

[0010] Preferably, the plane of the locking portion and the U-shaped opening of the welding position are on the same side, the planes of the power terminal and the signal terminal above the power terminal face one direction, and the planes of the other three signal terminals face another direction.

[0011] Preferably: the power hole includes a front hole and a circular hole, the front hole and the circular hole are coaxial, the aperture of the front hole is larger than the aperture of the circular hole to form a step hole, the front hole is adapted to the locking portion of the power terminal, and the plane is close to the hole wall of the front hole, at this time, the step surface and the bottom of the installation groove are in the same plane, the circular hole is adapted to the contact end of the power terminal, and similarly, the signal terminal is adapted to the signal hole, the locking portion of the signal terminal is adapted to the front hole of the signal hole, and the contact end of the signal terminal is adapted to the circular hole of the signal hole.

[0012] Preferably: snap hooks are respectively provided in the two short side walls of the mounting groove, and the snap hooks are adapted to the snap hook grooves of the crater back cover. When the crater back cover is assembled to the connector housing, the welding part of the power terminal is located in the power crater, and the contact end on the other side is located in the insertion cavity. The welding part of the signal terminal is located in the signal crater, and the contact end of the signal terminal on the other side is located in the insertion cavity.

[0013] Preferably: the waterproof ring is octagonal and made of silicone material, can surround all contact components, and can be assembled into the recessed portion of the mounting groove.

[0014] Preferably: the number of the signal craters, signal line perforations, signal terminals and signal holes is the same and can be designed according to actual needs. In this example, five signal craters and two power craters are selected to form a hexagon, with the inner crater at the vertex of the hexagon and the other crater at the center of the hexagon.

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

[0016] First, the core wire is placed in the corresponding crater of the crater back cover to provide support for the core wire. The crater adopts a hollow cone extending a hollow cylinder. The diameter of the bottom circle of the hollow cone is larger than the diameter of the corresponding threading hole. The bottom circle of the hollow cone extends the hollow cylinder to form a stepped hole to prevent the core wire from falling off during vibration.

[0017] Second, after the crater back cover is buckled onto the connector housing, glue is applied inside the crater to seal and waterproof. The crater adopts a hollow cone extending from a hollow cylinder structure, which can reduce the amount of glue and save costs;

[0018] Third, the locking portion of the contact assembly is a cylinder with a cross section cut off, and the locking portion is adapted to the front hole and is closely attached to the hole wall of the front hole. At this time, the contact assembly is not easy to vibrate out of the connector housing in a vibration environment;

[0019] Fourth, the efficiency of manual spot welding is improved. The U-shaped openings at the welding points of the two signal terminals and the two power terminals above the crater back cover face one direction, and the U-shaped openings of the signal terminal between the two power terminals and the two signal terminals below face another direction. In this way, the core wire can be welded to the corresponding position by flipping it. 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 embodiment;

[0022] Figure 2 This is a three-dimensional schematic diagram of another viewing angle of this embodiment.

[0023] Figure 3 is a schematic diagram of the back cover of the crater of this embodiment;

[0024] Figure 4 is a schematic diagram of another perspective of the rear cover of the crater of this embodiment;

[0025] Figure 5 is an exploded schematic diagram of the connector of this embodiment;

[0026] Figure 6 Schematic diagram of the connector housing and power terminals of this embodiment.

[0027] Brief description of reference numerals:

[0028] 1 crater back cover, 11 crater, m power line perforation, n signal line perforation, 111 power crater, 1111 hollow cone, 1112 hollow cylinder, 112 signal crater, 12 buckle groove, 2 waterproof ring, 3 contact assembly, 31 power terminal, 311 contact end, 312 stopper, 3121 plane, 3122 step surface, 313 welding point, 32 signal terminal, 4 connector housing, 41 bottom plate, 42 mounting groove, 421 power hole, 4211 front hole, 4212 round hole, 422 signal hole, 423 recess, 424 buckle, 43 convex ring, 431 placement surface, 44 insertion cavity. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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".

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] See also Figures 1 to 6, the figure discloses a connector structure, including a connector housing 4, a crater back cover 1 snapped onto the connector housing, a waterproof ring 2, and a contact component 3 for transmitting signals. Among them:

[0037] Reference Figures 2 to 3 The crater back cover 1 adopts a centrally symmetrical design and includes a through hole, a crater 11, and a buckle groove 12. The through holes are divided into a power line through hole m and a signal line through hole n. In this example, two power line through holes m are arranged on the left and right sides of the crater back cover 1. A signal line through hole n is arranged between the two power line through holes. The other four signal line through holes n are arranged on the upper and lower sides of the crater back cover. The side of the crater back cover 1 with the buckle groove 12 extends outward from the crater 11. The crater contains a power crater 111 and a signal crater 112. The bottom of the power crater is a hollow cone 1111. The bottom circle of the hollow cone is the same as the power line through hole. The hole m is concentric and has a diameter larger than the diameter of the power line hole. A hollow cylinder 1112 is extended from the bottom circle of the hollow cone, and its extension direction is consistent with the extension direction of the hollow cone. A chamfer is added to the side of the hollow cylinder away from the hollow cone to facilitate the passage of the core wire. Similarly, the lower bottom circle of the hollow cone (not marked) of the signal crater 112 is a concentric axis with the signal line hole n, and the upper bottom circle of the hollow cone (not marked) extends a hollow cylinder (not marked). The power crater and the signal crater have the same extension height, including the height of the hollow cone and hollow cylinder of the power crater are consistent with the height of the hollow cone and hollow cylinder of the signal crater respectively;

[0038] The crater 11 and the buckle slot 12 of the crater back cover are on one side, and the buckle slot is a rectangular slot respectively arranged on the short side of the crater back cover;

[0039] To adapt to the long-term vibration environment, the crater back cover 1 can enhance stability according to its own structural design. In this example, four signal craters 112 and two power craters 111 are located at the vertices of the hexagon, and the other signal crater is at the center of the hexagon. A triangle is formed between adjacent craters at the vertices, and the corresponding threading holes are arranged in the same way. At the same time, stepped holes are formed between the hollow cylinder and the hollow cone of the crater, and between the hollow cone and the threading hole, so as to fasten the cable in the crater.

[0040] Reference Figures 1 to 6The waterproof ring 2 is made of silicone material, and its shape is similar to that of the crater back cover, which can surround the contact component 3. The contact component is made of a material with good conductive properties, and includes a power terminal 31 and a signal terminal 32. The power terminal includes a contact end 311, a stopper 312, and a welding part 313. The power line passes through the power crater 111 and the power line is spot welded to the welding part 313 after being perforated m. When the crater back cover is buckled to the connector housing, the welding part 313 can be placed in the power crater, and the welding part has A U-shaped opening (not marked), the power line is spot welded at the U-shaped opening to connect the power terminal 31, the welding part and the contact end 311 are the same cylinder, the front end of the contact end is polished into an arc, which is convenient for inserting into the corresponding position of the female connector, and the stopper 312 is between the contact end 311 and the welding part 313, and a section of the cylinder of the stopper part is cut off, and the diameter of the bottom circle of the cylinder of the stopper part is larger than the diameter of the bottom circle of the cylinder of the contact end, and the cross-section plane 3121 is on the same side as the U-shaped opening of the welding part;

[0041] The signal terminal 32 has the same structure as the power terminal 31, but the signal terminal is smaller than the power terminal model and is adapted to the signal crater 112. Considering the high integration of the connector, the overall size of its contact component 3 is precise, and it is not easy to spot weld the core wire inside the cable to the welding point. Therefore, the U-shaped opening of the welding point of the two signal terminals 32 and the two power terminals 31 above the crater back cover faces one direction, and the U-shaped opening of the signal terminal 32 between the two power terminals and the two signal terminals below face another direction. In this way, the core wire can be welded to the corresponding position by flipping, thereby improving the efficiency of manual spot welding.

[0042] Reference Figures 1 to 6 The connector housing 4 includes a bottom plate 41 and a convex ring 43. One side of the bottom plate is a mounting groove 42 for fitting the waterproof ring 2 and the contact assembly 3, and the other side is a insertion cavity 44 for placing the contact end 311 of the contact assembly;

[0043] An octagonal mounting groove 42 extends from the bottom plate, and the mounting groove includes a power hole 421, a signal hole 422, a recess 423, and a buckle 424. The number and arrangement of the power holes 421 and the signal holes 422 are the same as those of the power terminals 31 and the signal terminals 32. The power hole is provided with two concentric cylindrical front holes 4211 and a circular hole 4212. The front hole is adapted to the stopper 312. The stopper and the plane 3121 of the stopper are in close contact with the hole wall of the front hole. The front hole and the stopper are not completely cylindrical in order to prevent the contact component 3 from falling off from the connector housing 4 in a vibration environment, thereby ensuring signal transmission. The aperture of the front hole is larger than the aperture of the circular hole 4212. The circular hole is adapted to the contact end 311. The signal hole has the same structure as the power hole and is adapted to the signal terminal 32. The stopper of the signal terminal is adapted to the front hole of the signal hole, and the contact end of the signal terminal is adapted to the circular hole of the signal hole.

[0044] The concave portion 423 is a hexagonal groove surrounding all the power holes and signal holes, and can be used to place the waterproof ring 2; buckles 424 are respectively provided in the two short side walls of the installation groove, and the two buckles are symmetrically positioned in the installation groove. The buckles are prisms and the bottom surface is an isosceles trapezoid. The buckle groove 12 of the crater rear cover is adapted to the buckle 424;

[0045] The bottom plate 41 is provided with fixing holes (not marked) close to the four corners. The convex ring 43 is a hollow cylinder located between the mounting groove 42 and the four corners of the bottom plate. The convex ring and the mounting hole (not marked) are coaxial cylinders and the bottom circle diameter is larger than the bottom circle diameter of the mounting hole, forming a placement surface 431 for placing nuts of corresponding sizes.

[0046] 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.

[0047] 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 connector structure, comprising a connector housing, a crater rear cover adapted to the connector housing, a waterproof ring, and a contact assembly, characterized in that: The crater back cover is provided with a power line hole, a signal line hole, and a power crater and a signal crater are extended from the crater back cover. The power crater and the power line hole are concentric axes, and the signal crater and the signal line hole are concentric axes. The power crater is respectively arranged on the left and right sides of the crater back cover, and the signal crater is located on the upper and lower sides of the crater back cover and between the two power craters. The power crater has a hollow cone and a hollow cylinder. The diameter of the lower bottom circle of the hollow cone is larger than the diameter of the power line hole, and its upper bottom circle extends out of a hollow cylinder. The signal crater has the same structure as the power crater, and the heights of the extended hollow cone and hollow cylinder are the same as the extended heights of the hollow cone and hollow cylinder of the power crater.

2. The connector structure according to claim 1, characterized in that: The crater and the buckle slot are on one side, and the buckle slots are respectively arranged on the short sides of the crater rear cover and are close to the power crater.

3. The connector structure according to claim 2, characterized in that: The power line perforations and signal line perforations are through holes. The power line perforations appear in pairs on both sides of the short side of the crater back cover. The number of signal line perforations is the same as that of signal craters. The aperture of the power line perforations is larger than that of the signal line perforations, and the corresponding power crater aperture is larger than that of the signal crater aperture.

4. The connector structure according to claim 3, characterized in that: The connector housing is provided with a base plate, one side of the base plate is a mounting groove, and the other side is an insertion cavity. The mounting groove is an octagonal prism adapted to the crater back cover. The mounting groove is provided with a recessed portion adapted to the power hole and signal hole of the contact assembly. The contact assembly is assembled into the insertion cavity through the power hole and the signal hole.

5. The connector structure according to claim 4, characterized in that: The contact assembly contains a power terminal and a signal terminal. The power terminal and the signal terminal have the same structure, including a contact end, a stopper and a welding part. The contact end and the welding part are the same cylinder. The top of the contact end away from the welding part is processed into an arc. The welding part is provided with a U-shaped opening to place the corresponding core wire. The stopper is between the contact end and the welding part. The stopper is a cylinder. The diameter of the bottom circle is larger than the diameter of the bottom circle of the contact end to form a step surface. A cross section of the cylinder of the stopper is cut off to form a plane.

6. The connector structure according to claim 5, characterized in that: The plane of the locking portion is on the same side as the U-shaped opening of the welding position, the planes of the power terminal and the signal terminal above the power terminal face one direction, and the planes of the other three signal terminals face another direction.

7. The connector structure according to claim 6, characterized in that: The power hole includes a front hole and a round hole. The front hole and the round hole are coaxial. The aperture of the front hole is larger than that of the round hole to form a step hole. The front hole is adapted to the locking portion of the power terminal, and the plane is close to the hole wall of the front hole. At this time, the step surface and the bottom of the installation groove are in the same plane. The round hole is adapted to the contact end of the power terminal. Similarly, the signal terminal is adapted to the signal hole. The locking portion of the signal terminal is adapted to the front hole of the signal hole, and the contact end of the signal terminal is adapted to the round hole of the signal hole.

8. The connector structure according to claim 7, characterized in that: There are clips on the two short side walls of the mounting groove, which are adapted to the clip slots of the crater back cover. When the crater back cover is assembled to the connector housing, the welding part of the power terminal is located in the power crater, and the contact end on the other side is located in the insertion cavity. The welding part of the signal terminal is located in the signal crater, and the contact end of the signal terminal on the other side is located in the insertion cavity.

9. The connector structure according to claim 8, characterized in that: The waterproof ring is octagonal and made of silicone. It can surround all contact components and be assembled into the recessed part of the mounting groove.

10. The connector structure according to claim 9, characterized in that: The number of the signal craters, signal line perforations, signal terminals and signal holes is the same and can be designed according to actual needs. In this example, five signal craters and two power craters are selected to form a hexagon, with the outer craters at the vertices of the hexagon and the other crater at the center of the hexagon.

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