Industrial cable joint
By making the grounding terminal protrude above the signal and power terminals in industrial cable connectors, the problem of spike voltage during cable hot-plugging is solved, thereby achieving safety and reliability protection for the equipment and reducing costs.
Patent Information
- Application Number
- CN202423287578.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
Smart Images
Figure CN223693388U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric signal connection, especially relates to an industrial cable joint. BACKGROUND
[0002] In the field of industrial automation, the industrial cable based on M12 aviation head is widely applied to the electrical signal connection of various industrial equipment. The electrical specification in the industrial automation equipment is mostly 24V, and the cable hot plugging phenomenon inevitably exists when the equipment is deployed. Due to the randomness of the angle and speed of plugging, the different terminals (pins) may be contacted in sequence, and when the signal terminal and the power terminal are contacted first and the grounding terminal is not contacted, there is a probability that a very high peak voltage is generated on the signal terminal and the power terminal, thereby damaging the connected equipment. The traditional method is to make EOS (Electrical Over Stress) protection or signal and power isolation in the electrical design of the equipment, which not only increases the cost and deployment difficulty, but also is not particularly ideal. Especially, some non-traditional industrial interfaces such as USB interface equipment are applied to the field of industrial automation, which makes this problem more prominent. SUMMARY
[0003] The utility model discloses an industrial cable joint that solves the problems in the prior art, in which the grounding terminal protrudes from the signal terminal and the power terminal, so that the grounding terminal is contacted first during plugging, thereby avoiding the generation of a peak voltage on the signal terminal and the power terminal, and achieving the purpose of protecting the equipment.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] The utility model provides an industrial cable joint, which comprises an insulator and a plurality of connection terminals installed in the insulator in isolation; the insulator has a positioning end face; the plurality of connection terminals comprise a grounding terminal, a plurality of power terminals and a plurality of signal terminals; each connection terminal has a plug-in end facing the positioning end face; the plug-in end of the grounding terminal protrudes from the plug-in end of each power terminal, and the plug-in end of the grounding terminal protrudes from the plug-in end of each signal terminal.
[0006] Preferably, along the direction parallel to the central axis of the insulator, the distance between the plug-in end of the grounding terminal and the plug-in end of each power terminal is 0.5mm-2.0mm; and the distance between the plug-in end of the grounding terminal and the plug-in end of each signal terminal is 0.5mm-2.0mm.
[0007] Preferably, the distance between the plug-in end of the grounding terminal and the plug-in end of each power terminal is 1.0 mm in the direction parallel to the central axis of the insulator; the distance between the plug-in end of the grounding terminal and the plug-in end of each signal terminal is 1.0 mm.
[0008] Preferably, the connection terminal is a female connection terminal, and the plug-in end of the female connection terminal is internally provided with a plug-in cavity.
[0009] Preferably, the connection terminal is a male connection terminal, and the plug-in end of the male connection terminal is columnar.
[0010] Preferably, the insulator is internally provided with a plurality of mounting cavities isolated from each other, each mounting cavity extending in the direction parallel to the central axis of the insulator; and a plurality of connection terminals are respectively mounted in the plurality of mounting cavities.
[0011] Preferably, the mounting cavity is provided with a chamfer at the entrance thereof.
[0012] Preferably, each connection terminal is respectively crimped in the corresponding mounting cavity.
[0013] Preferably, the positioning end face is provided with a foolproof structure.
[0014] Preferably, the outer wall of the insulator is provided with a positioning flange protruding outward in the radial direction of the insulator.
[0015] Compared with the prior art, the industrial cable joint has the advantages that: in the industrial cable joint, the grounding terminal protrudes from the signal terminal and the power terminal, so that the grounding terminal is connected in contact before the signal terminal and the power terminal during the plugging process, thereby avoiding the generation of a sharp peak voltage on the signal terminal and the power terminal, and achieving the purpose of protecting the equipment. The industrial cable joint has simple structure and deployment mode, low cost, and obvious application effect. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a sectional view of the industrial cable joint of some embodiments of the present application.
[0017] Figure 2 is a structural schematic view of the industrial cable joint of some embodiments of the present application.
[0018] Figure 3 is a structural schematic view of the industrial cable joint during plugging of some embodiments of the present application.
[0019] Figure 4 is a sectional view of the industrial cable joint of some other embodiments of the present application.
[0020] Figure 5The structure schematic diagram of the industrial cable joint of other embodiments of the utility model is plugged in.
[0021] In the figure, 10-insulator, 11-positioning end face, 12-mounting cavity, 13-anti-fool structure, 14-positioning flange, 15-chamfer, 20-connection terminal, 21-ground terminal, 22-power terminal, 23-signal terminal, 24-plugging end, 25-plugging cavity. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model embodiments will be clearly and completely described below in combination with the drawings of the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. It can be understood that some technical means of the various embodiments described herein can be mutually replaced or combined without conflict.
[0023] In the description of the utility model, if there are terms "first", "second" and the like, only for distinguishing the described objects, do not have any order or technical meaning. Therefore, the objects defined with "first", "second" and the like can be explicitly or implicitly include one or more objects. And "one" or "an" and the like similar words, do not represent quantity limit, but represent the existence of at least one, "more" represents not less than two.
[0024] In the description of the utility model specification, reference "one embodiment" or "some embodiments" and the like means that in one or more embodiments of the utility model, include the specific features, structures or characteristics described in combination with the embodiment. Therefore, the different statements in the specification "one embodiment", "some embodiments", "other some embodiments", "another some embodiments" and the like are not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized.
[0025] The utility model provides a kind of industrial cable joint, which can be applied to electrical signal connection of various industrial equipment, prevent the peak voltage generated in hot plug process, improve equipment safety and reliability, reduce application cost.
[0026] Reference Figure 1In some embodiments, the industrial cable joint comprises an insulator 10 and a plurality of connection terminals 20 which are installed in the insulator 10 in isolation. The insulator 10 has a positioning end face 11, and the central axis of the insulator 10 is perpendicular to the positioning end face 11. The plurality of connection terminals 20 comprises a grounding terminal 21, a plurality of power terminals 22 and a plurality of signal terminals 23, and each connection terminal 20 has a plug-in end 24 facing the positioning end face 11. Among them, the plug-in end of the grounding terminal 21 protrudes from the plug-in end of each power terminal 22, and the plug-in end of the grounding terminal 21 protrudes from the plug-in end of each signal terminal 23. In other words, the distance between the plug-in end face of the grounding terminal 21 and the positioning end face 11 is less than the distance between the plug-in end face of each power terminal 22 and the positioning end face 11, and the distance between the plug-in end face of the grounding terminal 21 and the positioning end face 11 is less than the distance between the plug-in end face of each signal terminal 23 and the positioning end face 11.
[0027] In the industrial cable joint of the utility model, the grounding terminal 21 protrudes from the signal terminal 23 and the power terminal 22, so that the grounding terminal 21 is connected in contact before the signal terminal 23 and the power terminal 22 in the plugging process, thereby avoiding the generation of peak voltage on the signal terminal 23 and the power terminal 22, and achieving the purpose of protecting the equipment. The industrial cable joint has simple structure and deployment mode, low cost, and obvious application effect.
[0028] It should be noted that the protruding distance of the plug-in end of the grounding terminal 21, the number and arrangement mode of the power terminals 22, and the number and arrangement mode of the signal terminals 23 can be reasonably set according to actual needs.
[0029] In some embodiments, along the direction parallel to the central axis of the insulator 10, the distance L1 between the plug-in end of the grounding terminal 21 and the plug-in end of each power terminal 22 is 0.5mm-2.0mm; and the distance between the plug-in end of the grounding terminal 21 and the plug-in end of each signal terminal 23 is 0.5mm-2.0mm.
[0030] Further, in some preferred embodiments, along the direction parallel to the central axis of the insulator 10, the distance L1 between the plug-in end of the grounding terminal 21 and the plug-in end of each power terminal 22 is 1.0mm; and the distance between the plug-in end of the grounding terminal 21 and the plug-in end of each signal terminal 23 is 1.0mm.
[0031] The utility model discloses an industrial cable joint Figure 1 In some embodiments shown in the utility model, the industrial cable joint is a female joint, the connection terminals 20 are female connection terminals, and the plug-in end 24 of each female connection terminal is internally provided with a plug-in cavity 25. Referring to Figure 3When the female end connector is inserted into the male end connector (in which a plurality of male end pins are correspondingly arranged), each female end connecting terminal is inserted into the corresponding male end pin, and the insertion end of the male end pin is inserted into the corresponding insertion cavity. Since the grounding terminal 21 protrudes from the signal terminal 23 and the power terminal 22, the grounding terminal 21 is connected in contact before the signal terminal 23 and the power terminal 22, thereby avoiding the generation of a sharp voltage on the signal terminal 23 and the power terminal 22, and improving the safety and reliability of the equipment.
[0032] Preferably, the insulator 10 is provided with a plurality of mounting cavities 12 which are isolated from each other, each mounting cavity 12 extends along a direction parallel to the central axis of the insulator 10, and a plurality of connecting terminals 20 are correspondingly arranged in the plurality of mounting cavities 12. Each connecting terminal 20 can be crimped in the corresponding mounting cavity 12 by using the crimping process in the prior art. Further, a chamfer 15 is arranged at the entrance of the mounting cavity 12 (corresponding to the position of the positioning end face 11), and the chamfer 15 can play a guiding role when each connecting terminal 20 is inserted into the corresponding male end pin, thereby improving the insertion efficiency.
[0033] Further, the outer wall of the insulator 10 is further provided with a positioning flange 14 which protrudes outward along the radial direction of the insulator 10. The positioning flange 14 can be used to limit the installation position and the insertion depth of the industrial cable connector, thereby ensuring the application reliability.
[0034] Referring to Figure 2 In some preferred embodiments, the positioning end face 11 is provided with a fool-proof structure 13. The fool-proof structure 13 can be a protrusion or a groove structure. In application, a groove or a protrusion structure which matches the fool-proof structure 13 is arranged on the equipment or the corresponding male end connector, and the fool-proof structure 13 can ensure the insertion positioning accuracy and avoid the error of the insertion direction during the insertion process, thereby playing a fool-proof role.
[0035] Referring to Figure 4 and Figure 5 In other embodiments, the industrial cable connector is a male end connector, the connecting terminal 20 is a male end connecting terminal, and the insertion end of each male end connecting terminal is columnar. The insertion end of the grounding terminal 21 protrudes from the insertion end of each power terminal 22, and the insertion end of the grounding terminal 21 protrudes from the insertion end of each signal terminal 23.
[0036] Further, along the direction parallel to the central axis of the insulator 10, the distance L2 between the insertion end 24 of the grounding terminal 21 and the insertion end of each power terminal 22 is 0.5 mm to 2.0 mm, and the distance between the insertion end of the grounding terminal 21 and the insertion end of each signal terminal 23 is 0.5 mm to 2.0 mm.
[0037] Referring to Figure 5When the male connector is inserted into the female connector (a plurality of female pins are arranged in the female connector, and an insertion cavity is arranged at the insertion end of each female pin), the male connecting terminals are inserted into the corresponding female pins, and the insertion end of the male connecting terminals is inserted into the insertion cavity of the corresponding female pin.
[0038] In conclusion, the industrial cable joint provided by the utility model, in which the grounding terminal protrudes from the signal terminal and the power terminal, makes the grounding terminal contact and connect before the signal terminal and the power terminal during the plugging process, thereby avoiding the generation of peak voltage on the signal terminal and the power terminal, and achieving the purpose of protecting the equipment.
[0039] The utility model has been described by the above related embodiments, however, the above embodiments are only examples for implementing the utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the utility model. On the contrary, changes and decorations made without departing from the spirit and scope of the utility model are all within the scope of the patent protection of the utility model.
Claims
1. An industrial cable connector, characterized in that: The industrial cable connector includes an insulator and a plurality of connecting terminals mounted in the insulator in a mutually isolated manner; the insulator has a positioning end face; the plurality of connecting terminals includes a grounding terminal, a plurality of power terminals and a plurality of signal terminals, each connecting terminal having a plug-in end facing the positioning end face; the plug-in end of the grounding terminal protrudes beyond the plug-in ends of each power terminal, and the plug-in end of the grounding terminal protrudes beyond the plug-in ends of each signal terminal.
2. The industrial cable connector as described in claim 1, characterized in that: Along the direction parallel to the central axis of the insulator, the distance between the plug-in end of the grounding terminal and the plug-in end of each power terminal is 0.5mm to 2.0mm; the distance between the plug-in end of the grounding terminal and the plug-in end of each signal terminal is 0.5mm to 2.0mm.
3. The industrial cable connector as described in claim 2, characterized in that: Along the direction parallel to the central axis of the insulator, the distance between the plug-in end of the grounding terminal and the plug-in end of each power terminal is 1.0 mm; the distance between the plug-in end of the grounding terminal and the plug-in end of each signal terminal is 1.0 mm.
4. The industrial cable connector as described in claim 1, characterized in that: The connection terminal is a female connection terminal, and the insertion end of the female connection terminal has an insertion cavity inside.
5. The industrial cable connector as described in claim 1, characterized in that: The connection terminal is a male connection terminal, and the plug end of the male connection terminal is cylindrical.
6. The industrial cable connector as described in claim 1, characterized in that: The insulator has multiple mutually isolated mounting cavities, each extending along a direction parallel to the central axis of the insulator; multiple connecting terminals are respectively installed in the multiple mounting cavities.
7. The industrial cable connector as described in claim 6, characterized in that: The entrance to the mounting cavity is chamfered.
8. The industrial cable connector as described in claim 6, characterized in that: Each connection terminal is crimped into its corresponding mounting cavity.
9. The industrial cable connector as described in any one of claims 1-8, characterized in that: The positioning end face is provided with a foolproof structure.
10. The industrial cable connector as described in any one of claims 1-8, characterized in that: The outer wall of the insulator is provided with a positioning flange, which protrudes outward along the radial direction of the insulator.