Cylinder type terminal and terminal plugging structure

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By designing a cylindrical terminal structure that includes a base, spring, and insert, the problem of the inability to standardize traditional cylindrical terminals is solved, achieving flexible specification combinations, reduced costs, and diversified applications.

CN223771381UActive Publication Date: 2026-01-06JILIN ZHONG YING HIGH TECH CO LTD

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Patent Information

Application Number: CN202520106574.0
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-01-16
Publication Date: 2026-01-06
Estimated Expiration: 2035-01-16

AI Technical Summary

Technical Problem

Traditional cylindrical terminals cannot be standardized, resulting in too many similar products, increasing management and material costs, and complicating processing.

Method used

Design a cylindrical terminal structure including a base, a spring, and an insert. The spring is set in a slot in the base, and the insert is fixed in a groove. The spring is securely installed by the cooperation of the insert and the slot, supporting different combinations and replacements of different specifications.

Benefits of technology

It enables the selection of different spring and base combinations according to needs, reduces the cost of repetitive design and processing, meets the needs of diverse applications, and facilitates replacement when the spring wears out or needs to be upgraded.

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Abstract

The utility model relates to the technical field of electric transmission, and more specifically relates to a cylindrical terminal and a terminal plugging structure. Comprising a base, at least two elastic sheets and an insert, the base is provided with a mounting end face, the mounting end face is sunken inwards to form a groove, a plurality of open grooves which are sunken outwards in the radial direction are formed in the side wall of the groove in the circumferential direction, and the open grooves extend and penetrate through the mounting end face; at least part of the elastic piece is arranged in the open groove, and the insert is arranged in the groove and abuts against the elastic piece so that the elastic piece can be fixed in the open groove. When the cylindrical terminal is used, different elastic sheets can be selected as required to be matched with different bases to form cylindrical terminals of different specifications, so that when the elastic sheets are abraded or need to be upgraded, defective parts can be easily replaced, and the whole cylindrical terminal does not need to be replaced. The design can meet various complex and variable application requirements, repeated design and machining are reduced, and the cost is greatly reduced.

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Description

Technical Field

[0001] This utility model relates to the field of electrical transmission technology, and more specifically to a cylindrical terminal and a terminal plug-in structure. Background Technology

[0002] Cylindrical terminal blocks play a crucial role in electrical connections, commonly used for cable connection and securing. Traditional cylindrical terminal block products lack standardization, requiring different terminal block structures to be designed for varying connection needs. This leads to an overabundance of similar products, increasing management costs, material costs, and manufacturing complexity. Therefore, a new technological solution is urgently needed to address these issues. Utility Model Content

[0003] To solve the above problems, this utility model proposes a cylindrical terminal, including a base, at least two spring contacts, and an insert; the base has a mounting end face, the mounting end face is recessed inward to form a groove, the side wall of the groove is provided with a plurality of radially outward recessed slots, the slots extend through to the mounting end face; the spring contacts are at least partially disposed in the slots, and the insert is disposed in the groove and abuts against the spring contacts to fix them in the slots.

[0004] The slotted bottom surface is provided with a slot extending toward the outer periphery of the base, and the spring is provided with a insert for inserting into the slot.

[0005] The insert is formed by bending and extending the end of the spring piece.

[0006] The spring piece is circumferentially surrounded in the groove, forming an insertion cavity inside. The inner diameter of the insertion cavity gradually decreases from one end near the base to the other end.

[0007] The groove has a circular cross-section, and the insert is frustum-shaped with its larger diameter end face close to the base.

[0008] The initial shape of the inner cavity of the groove is cylindrical. After the spring and the insert are installed, pressure is applied to the outer peripheral surface of the base corresponding to the groove to deform it, so that the inner side of the groove and part of the surface of the spring abut against the outer side of the insert, and the insert is fixed in the groove.

[0009] The outer circumferential surface of the base is provided with multiple circumferential grooves spaced at intervals along the axial direction.

[0010] The base is provided with a connector for connecting cables.

[0011] A terminal plug-in structure includes a cylindrical terminal and a mating terminal as described in any of the preceding claims, wherein the mating terminal is plugged into a plug-in cavity formed by the spring contacts of the cylindrical terminal.

[0012] The side of the spring facing the mating terminal has a guide arc that gradually moves away from the axis of the base.

[0013] The beneficial effects provided by this utility model are as follows: In use, different spring contacts can be selected and matched with different bases to form cylindrical terminals of different specifications. This allows for easy replacement of faulty parts when the spring contacts wear out or require upgrading, without needing to replace the entire cylindrical terminal. This design can also meet various complex and variable application requirements, reducing repetitive design and processing, and significantly lowering costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a cylindrical terminal according to the present invention.

[0016] Figure 2 This is a schematic diagram of an insert for a cylindrical terminal according to the present invention.

[0017] Figure 3 This is a schematic diagram of the base of a cylindrical terminal according to the present invention.

[0018] Figure 4 This is a cross-sectional schematic diagram of a cylindrical terminal according to the present invention.

[0019] Figure 5 This is a schematic diagram of a terminal plug-in structure according to the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Base, 11-Mounting end face, 12-Groove, 13-Slot, 131-Slot, 14-Round groove, 15-Connecting part;

[0022] 2-Spring, 21-Insertion, 22-Guide arc;

[0023] 3-Inlay;

[0024] 4-Matching terminals. Detailed Implementation

[0025] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict.

[0026] A type of cylindrical terminal, such as Figures 1-4 As shown, it includes a base 1, at least two spring pieces 2, and an insert 3; the base 1 has a mounting end face 11, the mounting end face 11 is recessed inward to form a groove 12, the side wall of the groove 12 is provided with a plurality of radially outward recessed slots 13, the slots 13 extend through the mounting end face 11; the spring pieces 2 are at least partially disposed in the slots 13, and the insert 3 is disposed in the groove 12 and abuts against the spring pieces 2 to fix them in the slots 13.

[0027] The base 1 is cylindrical in shape and has a planar mounting end face 11. This mounting end face 11 is recessed inward to form a groove 12. The sidewalls of the groove 12 are circumferentially provided with slots 13, the same number as the number of spring pieces 2, which are radially recessed outward. These slots 13 extend through the mounting end face 11 of the base 1. The spring piece 2 is a thin metal sheet whose shape matches the slot 13. The spring piece 2 is at least partially disposed in the slot 13, and the insert 3 supports the spring piece 2 outward within the groove 12, fixing it in place within the slot 13. In use, different spring pieces 2 can be selected to cooperate with different bases 1 as needed to form cylindrical terminals of different specifications. This allows for easy replacement of the faulty part when the spring piece 2 wears out or needs upgrading, without replacing the entire cylindrical terminal. This design can also meet various complex and variable application requirements, reducing redundant design and processing, and significantly lowering costs.

[0028] In some embodiments, the bottom surface of the slot 13 is provided with a slot 131 extending towards the outer peripheral surface of the base, and the spring piece 2 is provided with an insert 21 for inserting into the slot 131. The insert 21 is at an angle to the spring piece 2, and the insertion of the insert 21 into the slot 131 makes it easier for the spring piece 2 to be placed in the slot 13 and less likely to tip over, and makes it easier to install the insert 3.

[0029] Furthermore, the insert 21 is formed by extending and bending the end of the spring 2. This integrated design not only makes the structure more robust but also reduces manufacturing processes and lowers costs.

[0030] In some embodiments, the spring 2 circumferentially surrounds the groove 12, forming a plug-in cavity inside. The inner diameter of the plug-in cavity gradually decreases from one end near the base 1 to the other end. The plug-in cavity is used to plug in mating terminals, which can be inserted into the plug-in cavity to achieve electrical connection. The gradually decreasing inner diameter facilitates the spring 2 to clamp the mating terminals.

[0031] In some embodiments, the groove 12 has a circular cross-section, and the insert 3 is frustum-shaped, with its larger diameter end face close to the base 1. The insert 3 is partially located within the groove 12, and its outer surface abuts against a portion of the surface of the spring piece 2. By applying pressure to the outer circumferential surface of the base 1, the inner surface of the groove 12 and a portion of the surface of the spring piece 2 can be more tightly fitted to the outer surface of the insert 3, thereby firmly fixing the insert 3 within the slot 13.

[0032] In some embodiments, the initial shape of the inner cavity of the groove 12 is cylindrical. After the spring piece 2 and the insert 3 are installed, pressure is applied to the outer peripheral surface of the base 1 corresponding to the groove 12 to deform it, so that the inner side of the groove 12 and part of the surface of the spring piece 2 abut against the outer side of the insert 3, and the insert 3 is fixed in the groove 12. The insert 3 presses the spring piece 2 outward from the inside, and the base 1 presses the spring piece 2 inward from the outside, which can make the spring piece more firmly installed in the groove 12.

[0033] In some embodiments, the outer circumferential surface of the base 1 is provided with a plurality of circumferential grooves 14 spaced apart along the axial direction. When the cylindrical terminal needs to be fixed, such as to a circuit board, it can be engaged with the circuit board through the grooves.

[0034] In some embodiments, the base 1 is provided with a connecting part 15 for connecting cables. The connecting part 15 is connected to the cable by means of welding, screwing, or riveting.

[0035] This utility model also provides a terminal plug-in structure, such as Figure 5 As shown, it includes a cylindrical terminal and a mating terminal 4 as described above. The mating terminal 4 is inserted into the mating cavity formed by the spring contact 2 of the cylindrical terminal. The spring contact 2 holds the mating terminal 4 and realizes the electrical connection between the cylindrical terminal and the mating terminal.

[0036] In some embodiments, the spring 2 has a guide arc 22 on the side facing the mating terminal 4 that gradually moves away from the axis of the base 1. The guide arc 22 can guide the mating terminal 4 into the cylindrical terminal, avoiding mutual collision and damage to the plating on the terminal surface.

[0037] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0038] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

[0039] It should also be understood that, in the embodiments herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following associated objects have an "or" relationship.

[0040] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this document.

[0041] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0042] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments described herein, depending on actual needs.

[0043] Furthermore, the functional units in the various embodiments of this document can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0044] This document uses specific embodiments to illustrate the principles and implementation methods of this document. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this document. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this document. Therefore, the content of this specification should not be construed as a limitation of this document.

Claims

1. A barrel terminal characterized by comprising: The base has a mounting end face which is recessed inwardly to form a recess, the side wall of the recess is provided with a plurality of radially outwardly recessed slots which extend through the mounting end face, the spring sheet is at least partially arranged in the slots, and the insert is arranged in the recess and abuts against the spring sheet to fix the spring sheet in the slots.

2. A barrel terminal according to claim 1, wherein The bottom surface of the slot is provided with an insertion slot extending towards the outer circumferential surface of the base, and the spring sheet is provided with an insertion sheet for insertion into the insertion slot.

3. A barrel terminal according to claim 2, wherein The insertion sheet is formed by bending the end portion of the spring sheet.

4. A barrel terminal according to claim 1, wherein The spring sheet circumferentially surrounds the recess, and an insertion cavity is formed in the interior of the spring sheet, the inner diameter of the insertion cavity gradually decreases from one end close to the base to the other end.

5. A barrel terminal according to claim 1, wherein The cross section of the recess is circular, and the insert is a circular truncated cone, the end face with a larger diameter of which is close to the base.

6. A barrel terminal according to claim 5, wherein The initial shape of the inner cavity of the recess is cylindrical, after the spring sheet and the insert are mounted, the recess exerts pressure on the outer circumferential surface of the base to deform it, so that the inner side surface of the recess and part of the surface of the spring sheet abut against the outer side surface of the insert, and the insert is fixed in the recess.

7. A barrel terminal according to claim 1, wherein The outer circumferential surface of the base is provided with a plurality of circumferential circular grooves which are spaced apart along the axial direction.

8. A barrel terminal according to claim 1, wherein The base is provided with a connection portion for connecting a cable.

9. A terminal crimping structure characterized by comprising: The base is provided with a connection portion for connecting a cable.

10. A terminal crimping structure according to claim 9, wherein The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable. The base is provided with a connection portion for connecting a cable.