Connector terminal
By making the metal joint and the anti-fool-proof protrusion separately and providing fixing holes on the joint, the problem of easy damage of the plastic anti-fool-proof protrusion is solved, high mechanical strength and stable connection are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422380168.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In the prior art, the anti-fouling protrusion of the cylindrical metal terminal is made of plastic, which has low mechanical strength and is easily damaged after long-term use.
The circular metal joint and the metal anti-fool protrusion are manufactured separately. The metal joint is provided with a fixing hole. The metal anti-fool protrusion is inserted into the fixing hole and extends into the inner cavity. The assembly is simple and the mechanical strength is high.
It reduces production difficulty and cost, ensures connection stability, and extends the service life of connector terminals.
Smart Images
Figure CN223309343U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electrical connectors, and specifically relates to a connector terminal. Background Art
[0002] Compared to integrally machining a foolproof protrusion on a square metal terminal, machining a foolproof protrusion on a cylindrical metal terminal requires higher machine tool precision and a more complex mold structure, resulting in higher manufacturing difficulty and cost. Therefore, the current method for adding a foolproof protrusion to a cylindrical metal terminal is to attach a plastic component with the protrusion to the metal terminal. However, compared to metal protrusions, plastic protrusions have lower mechanical strength and are easily damaged over time. Utility Model Content
[0003] The purpose of the present application is to provide a connector terminal, aiming to solve the technical problem in the prior art that the anti-fouling protrusion of the cylindrical metal terminal is made of plastic, has low mechanical strength, and is easily damaged after long-term use.
[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is: a connector terminal, including a metal joint and a metal anti-foolproof protrusion, the metal joint is in a circular ring shape, and an inner cavity is formed in the metal joint for plugging with other compatible connector terminals, and a fixing hole connected to the inner cavity is provided on the peripheral side of the metal joint, one end of the metal anti-foolproof protrusion is inserted into the fixing hole, and the other end of the metal anti-foolproof protrusion is located in the inner cavity.
[0005] Furthermore, the periphery of the metal fool-proof protrusion abuts against the hole wall of the fixing hole.
[0006] Furthermore, the fixing hole is a circular hole, and the metal fool-proof protrusion is cylindrical.
[0007] Furthermore, the axis of the fixing hole is perpendicular to and connected to the axis of the metal joint.
[0008] Furthermore, an end of the fixing hole away from the inner cavity does not penetrate the metal joint.
[0009] Furthermore, the connector terminal also includes an insulating tail, which is connected to one end of the metal connector and is used to connect to the cable. A pin is provided in the metal connector, and one end of the pin is used to be electrically connected to the cable.
[0010] Furthermore, a limiting groove is provided on the outer peripheral side of the metal joint, the insulating tail covers one end of the metal joint, and the insulating tail is partially embedded in the limiting groove.
[0011] Furthermore, the limiting groove is annular and is arranged around the metal joint.
[0012] Furthermore, a notch is provided at one end of the metal joint connected to the insulating tail, and the insulating tail is partially embedded in the notch to limit the metal joint from rotating relative to the insulating tail.
[0013] Furthermore, an external thread is provided on the outer peripheral side of the metal joint.
[0014] Compared with the prior art, the beneficial effects of the connector terminal provided by the present application are: the annular metal joint and the metal anti-foolproofing protrusion are made separately and then assembled, which can reduce the difficulty and cost of production compared to one-piece molding; a fixing hole is opened on the peripheral side of the metal joint, and during assembly, it is only necessary to insert the metal anti-foolproofing protrusion into the fixing hole, which is simple and convenient to assemble. The end of the metal anti-foolproofing protrusion away from the fixing hole extends into the inner cavity of the metal joint, so that it can cooperate with other compatible connector terminals inserted into the inner cavity to play an anti-foolproofing role; the metal anti-foolproofing protrusion is made of metal, and has higher mechanical strength than the plastic anti-foolproofing structure, which can not only ensure the connection stability between the connector terminals, but also can be used for a long time without being easily damaged, effectively extending the working life of the connector terminals. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0016] Figure 1 A schematic structural diagram of a connector terminal provided in an embodiment of the present application;
[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the metal joint of the connector terminal shown.
[0018] Among them, the reference numerals in the figures are:
[0019] 10. Metal joints;
[0020] 11. Inner cavity;
[0021] 12. External thread;
[0022] 13. Limiting slot;
[0023] 14. Gap;
[0024] 20. Metal anti-fouling protrusion;
[0025] 30. Insulation tail;
[0026] 40. Pin. DETAILED DESCRIPTION
[0027] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0028] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0030] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.
[0031] like Figure 1 As shown, an embodiment of the present application provides a connector terminal, including a metal joint 10 and a metal anti-foolproof protrusion 20. The metal joint 10 is in a circular ring shape, and an inner cavity 11 for plugging with other compatible connector terminals is formed in the metal joint 10. The peripheral side of the metal joint 10 is provided with a fixing hole (not shown) connected to the inner cavity 11, one end of the metal anti-foolproof protrusion 20 is inserted into the fixing hole, and the other end of the metal anti-foolproof protrusion 20 is located in the inner cavity 11.
[0032] The annular metal connector 10 and the metal anti-foolproofing protrusion 20 are manufactured separately and then assembled, which can reduce the difficulty and cost of production compared to one-piece molding; a fixing hole is opened on the peripheral side of the metal connector 10, and during assembly, it is only necessary to insert the metal anti-foolproofing protrusion 20 into the fixing hole, which is simple and convenient to assemble. The end of the metal anti-foolproofing protrusion 20 away from the fixing hole extends into the inner cavity 11 of the metal connector 10, so that it can cooperate with other compatible connector terminals inserted into the inner cavity 11 to play an anti-foolproofing role; the metal anti-foolproofing protrusion 20 is made of metal, and has higher mechanical strength than the plastic anti-foolproofing structure, which can not only ensure the connection stability between the connector terminals, but also can be used for a long time without being easily damaged, effectively extending the working life of the connector terminals.
[0033] In one embodiment, the periphery of the metal anti-mock protrusion 20 abuts against the wall of the fixing hole. The size of the fixing hole is designed to match the outer dimensions of the metal anti-mock protrusion 20. When the metal anti-mock protrusion 20 is inserted into the fixing hole, the fixing hole can abut against the periphery of the metal anti-mock protrusion 20, thereby securing the metal anti-mock protrusion 20 and making assembly simple and convenient.
[0034] In one embodiment, in order to enhance the fixing effect of the metal fool-proofing protrusion 20 , after the metal fool-proofing protrusion 20 is inserted into the fixing hole, the metal fool-proofing protrusion 20 may be welded to the metal joint 10 .
[0035] In one embodiment, in order to enhance the fixing effect of the metal anti-fool protrusion 20, a thread structure can be processed on the fixing hole and the metal anti-fool protrusion 20 so that the fixing hole and the metal anti-fool protrusion 20 are threadedly connected.
[0036] In one embodiment, in order to enhance the fixing effect of the metal anti-fool protrusion 20, the metal anti-fool protrusion 20 can be made of a magnetic material so that the metal anti-fool protrusion 20 is magnetically connected to the fixing hole.
[0037] In one embodiment, in order to enhance the fixing effect of the metal fool-proofing protrusion 20, the metal fool-proofing protrusion 20 and the fixing hole can be bonded.
[0038] In one embodiment, Figure 1As shown, the fixing hole is a circular hole, and the metal anti-fool-proofing protrusion 20 is cylindrical. The fixing hole is a circular hole and the metal anti-fool-proofing protrusion 20 is cylindrical, which has the advantages of simple structure and easy production, and can further reduce the production cost. Moreover, the metal anti-fool-proofing protrusion 20 can be inserted into the fixing hole at any angle in the circumferential direction, which is convenient for assembly and improves assembly efficiency. In addition, the connector terminal that is plugged into and mated with the connector terminal provided in this embodiment needs to be provided with an anti-fool-proofing groove for the metal anti-fool-proofing protrusion 20 to be inserted. By designing the metal anti-fool-proofing protrusion 20 to be cylindrical, the part facing the anti-fool-proofing groove is semi-cylindrical and gradually shrinks in the direction close to the anti-fool-proofing groove, which can play a certain guiding role, facilitates the insertion of the metal anti-fool-proofing protrusion 20 into the anti-fool-proofing groove, and improves assembly efficiency.
[0039] Of course, in some other embodiments, the fixing hole may also be a square hole, a rectangular hole, an elliptical hole, a triangular hole, a regular hexagonal hole, etc. When the fixing hole is a square hole, the metal fool-proofing protrusion 20 corresponds to a column with a square cross-section; when the fixing hole is a rectangular hole, the metal fool-proofing protrusion 20 corresponds to a column with a rectangular cross-section; when the fixing hole is an elliptical hole, the metal fool-proofing protrusion 20 corresponds to a column with an elliptical cross-section; when the fixing hole is a triangular hole, the metal fool-proofing protrusion 20 corresponds to a column with a triangular cross-section; when the fixing hole is a regular hexagonal hole, the metal fool-proofing protrusion 20 corresponds to a column with a regular hexagonal cross-section.
[0040] In one embodiment, the axis of the fixing hole is perpendicular to and connected to the axis of the metal connector 10. The inner cavity 11 of the metal connector 10 is cylindrical, and the cross-sectional shape of the inner cavity 11 is circular. The axis of the metal connector 10 is a straight line passing through the center of each cross-section of the inner cavity 11. The axis of the fixing hole is perpendicular to and connected to the axis of the metal connector 10, that is, the axis of the fixing hole coincides with the straight line of one of the diameters of the circular cross-section. Such a design can reduce the difficulty of processing the fixing hole, and also facilitates the insertion of the metal anti-foolproofing protrusion 20 into the fixing hole. In addition, the anti-foolproofing groove usually extends straight from the outside of the connector terminal in a direction close to the axis of the connector terminal. After the metal anti-foolproofing protrusion 20 is inserted into the fixing hole, the axis of the metal anti-foolproofing protrusion 20 is also perpendicular to and connected to the axis of the metal connector 10, so that it can perfectly coincide with the anti-foolproofing groove, facilitating the insertion of the metal anti-foolproofing protrusion 20 into the anti-foolproofing groove.
[0041] In one embodiment, the end of the fixing hole away from the inner cavity 11 does not penetrate the metal connector 10, that is, the fixing hole is a blind hole opened on the inner side of the metal connector 10. By providing the fixing hole with a blind hole, the axial positioning of the metal anti-foolproofing protrusion 20 can be achieved, preventing the metal anti-foolproofing protrusion 20 from passing through the fixing hole and exposing the outside of the metal connector 10. At the same time, by inserting the metal anti-foolproofing protrusion 20 to the bottom of the fixing hole, the length of the metal anti-foolproofing protrusion 20 inserted into the fixing hole can be unified, and the length of the metal anti-foolproofing protrusion 20 extending into the inner cavity 11 can also be unified, ensuring that the metal anti-foolproofing protrusion 20 can be smoothly connected with the anti-foolproofing groove of other compatible connector terminals. In addition, the metal connector 10 forms a seal at the end of the fixing hole away from the inner cavity 11, thereby effectively preventing foreign matter from entering the fixing hole, such as preventing liquid from entering the fixing hole from the outside of the metal connector 10 and corroding the fixing hole and the metal anti-foolproofing protrusion 20.
[0042] In one embodiment, a sealing ring can be provided on the portion of the metal anti-mock protrusion 20 inserted into the fixing hole. The sealing ring abuts against the inner wall of the fixing hole, thereby not only securing the metal anti-mock protrusion 20 but also providing waterproofing, preventing liquid from accumulating in the fixing hole and corroding the fixing hole and the metal anti-mock protrusion 20. An annular groove can be provided on the outer periphery of the metal anti-mock protrusion 20, and the sealing ring is disposed in the annular groove, thereby achieving axial positioning of the sealing ring.
[0043] In one embodiment, Figure 2 As shown, the outer peripheral side of the metal connector 10 is provided with an external thread 12, and the external thread 12 is used for threaded connection with external accessories. Specifically, the external thread 12 can be used to connect a locking ring, which is rotatably mounted on other compatible connector terminals. The locking ring is provided with an internal thread. When the two connector terminals are docked, the internal thread in the locking ring is threadedly matched with the external thread 12 on the metal connector 10, thereby ensuring that the two connector terminals are securely connected. In this embodiment, the metal external thread 12 is processed on the metal connector 10. Compared with the plastic thread structure, it has higher mechanical strength and can be used for a long time without being easily damaged. Specifically, the specification of the connector terminal provided in this embodiment can be an M8 terminal.
[0044] In one embodiment, Figure 1 As shown, the connector terminal also includes an insulating tail 30, which is connected to one end of the metal connector 10 and is used to connect to the cable. The metal connector 10 is provided with a pin 40, one end of which is used to electrically connect to the cable. The end of the metal connector 10 away from the insulating tail 30 is used to plug into another compatible connector terminal, and the end of the pin 40 away from the cable is used to electrically connect to another compatible connector terminal.
[0045] Specifically, the external thread 12 is provided on the portion of the metal connector 10 where the insulating tail 30 is exposed, so as to facilitate threaded connection with an external accessory.
[0046] The number of pins 40 is not specifically limited. For example, the number of pins 40 can be six, corresponding to a 6-pin connector terminal, or the number of pins 40 can be eight, corresponding to an 8-pin connector terminal. With 6-pin or 8-pin connectors, it is easy for terminals to mate at incorrect angles, which can easily cause accidents. However, the metal anti-mock protrusion 20 of the connector terminal of this embodiment cooperates with the anti-mock groove of the matching connector terminal to prevent misalignment and ensure that the terminals mate at the only correct angle.
[0047] In one embodiment, Figure 2 As shown, a retaining groove 13 is provided on the outer circumference of the metal connector 10. The insulating tail 30 covers one end of the metal connector 10 and is partially embedded in the retaining groove 13. By providing the retaining groove 13 on the outer circumference of the metal connector 10 and partially embedding the insulating tail 30 in the retaining groove 13, the bonding force between the metal connector 10 and the insulating tail 30 is enhanced, effectively preventing the metal connector 10 and the insulating tail 30 from separating, and improving operational reliability.
[0048] In one embodiment, Figure 2 As shown, the retaining groove 13 is annular and surrounds the metal connector 10. By configuring the retaining groove 13 in an annular shape, the portion of the insulating tail 30 embedded within the retaining groove 13 also has an annular shape. This maximizes the contact area between the insulating tail 30 and the metal connector 10 in the circumferential direction, ensuring that the insulating tail 30 retains the axial position of the metal connector 10 and effectively preventing axial movement of the metal connector 10. Furthermore, configuring the retaining groove 13 in an annular shape offers the advantage of simplified processing.
[0049] In one embodiment, Figure 2 As shown, there are multiple limiting grooves 13, which are spaced apart along the axial direction of the metal connector 10. By providing multiple limiting grooves 13, the insulating tail 30 can be simultaneously embedded in each limiting groove 13, thereby enhancing the stability of the connection between the insulating tail 30 and the metal connector 10, ensuring that the insulating tail 30 axially limits the metal connector 10, and effectively preventing the metal connector 10 from moving in the axial direction. The number of limiting grooves 13 can be two, three, four, or more, and the specific number can be determined according to the length of the metal connector 10.
[0050] In one embodiment, Figure 2As shown, a notch 14 is provided at one end of the metal connector 10 connected to the insulating tail 30. The insulating tail 30 is partially embedded in the notch 14 to restrict the metal connector 10 from rotating relative to the insulating tail 30. By providing an annular limiting groove 13 on the outer periphery of the metal connector 10, the insulating tail 30 is partially embedded in the limiting groove 13, which can achieve axial limiting of the metal connector 10 and effectively prevent the metal connector 10 from separating from the insulating tail 30. However, it is difficult to prevent the metal connector 10 from rotating relative to the insulating tail 30. In this embodiment, by providing a notch 14 at the end of the metal connector 10, the insulating tail 30 is partially embedded in the notch 14, thereby restricting the metal connector 10 from rotating relative to the insulating tail 30 and ensuring accurate docking of the connector terminals.
[0051] In one embodiment, Figure 2 As shown, there are multiple notches 14, spaced apart along the circumference of the metal connector 10. By providing multiple notches 14, the insulating tail 30 can be simultaneously embedded in each notch 14, thereby enhancing the stability of the connection between the insulating tail 30 and the metal connector 10 and preventing the metal connector 10 from rotating relative to the insulating tail 30. Specifically, there can be two notches 14, symmetrically distributed about the axis of the metal connector 10. Of course, the number of notches 14 can also be three, four, or more, without limitation.
[0052] In one embodiment, the insulating tail 30 is partially located in the inner cavity 11 of the metal connector 10 and covers one end of the pin 40 , thereby fixing the pin 40 .
[0053] Specifically, the insulating tail 30 is formed by injection molding of a plastic or rubber material, and can fill the aforementioned limiting groove 13 and the gap 14 during the injection molding.
[0054] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A connector terminal, characterized in that: It includes a metal connector and a metal anti-foolproof protrusion. The metal connector is in a circular ring shape. An inner cavity is formed in the metal connector for plugging in other compatible connector terminals. A fixing hole is provided on the peripheral side of the metal connector and is connected to the inner cavity. One end of the metal anti-foolproof protrusion is inserted into the fixing hole, and the other end of the metal anti-foolproof protrusion is located in the inner cavity.
2. The connector terminal according to claim 1, wherein: The four sides of the metal fool-proof protrusion are in contact with the hole wall of the fixing hole.
3. The connector terminal according to claim 1, wherein: The fixing hole is a circular hole, and the metal fool-proof protrusion is cylindrical.
4. The connector terminal according to claim 3, wherein: The axis of the fixing hole is perpendicular to and connected to the axis of the metal joint.
5. The connector terminal according to claim 1, wherein: The fixing hole is a blind hole opened on the inner side of the metal joint.
6. The connector terminal according to any one of claims 1 to 5, characterized in that: The connector terminal also includes an insulating tail portion, which is connected to one end of the metal connector and is used to connect to a cable. A pin is provided in the metal connector, and one end of the pin is used to be electrically connected to the cable.
7. The connector terminal according to claim 6, wherein: A limiting groove is provided on the outer peripheral side of the metal joint, the insulating tail covers one end of the metal joint, and the insulating tail is partially embedded in the limiting groove.
8. The connector terminal according to claim 7, wherein: The limiting groove is annular and is arranged around the metal joint.
9. The connector terminal according to claim 8, wherein: A notch is provided at one end of the metal joint connected to the insulating tail, and the insulating tail is partially embedded in the notch to limit the metal joint from rotating relative to the insulating tail.
10. The connector terminal according to any one of claims 1 to 5, characterized in that: An external thread is provided on the outer circumference of the metal joint.