Connector with replaceable terminals
By designing a detachable snap-fit structure and a top cover for fixation in the connector, the problem of the inability to replace existing connection terminals is solved, achieving flexible adaptation and stable fixation of terminal types to meet the diverse needs of circuit functions.
Patent Information
- Application Number
- CN202520574510.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing connection terminals cannot be replaced to adapt to different types of connection terminals during use.
A connector with replaceable terminals was designed. By setting a snap-fit structure at the lower end of the terminal and the upper end of the base, the terminal can be detachably and vertically snapped onto the base, and is fixed by the upper cover to prevent it from loosening.
It enables flexible replacement and stable fixing of terminal types, adapts to different circuit requirements, and improves the adaptability and reliability of the circuit.
Smart Images

Figure CN223942067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a connector, specifically a connector with replaceable terminals. Background Technology
[0002] In recent years, the electric vehicle, grid energy storage, and electric ship industries have been developing continuously, and the functional requirements of the system for the circuit have also been increasing. The development of control circuits has been from simple to complex, and the number of circuit loops involved has been increasing. The current acquisition and circuit current shunting have also surged.
[0003] For example, Chinese patent document CN216903368U, entitled "A Vertical Connecting Terminal and its Mounting Structure," discloses a connecting terminal with multiple ribs. Three of the ribs are vertically fixed to a T-shaped mounting block by welding, and these three ribs are used for shunt power supply. The ribs, arranged vertically side-by-side, reduce the space occupied. However, in this structure, the ribs are welded and cannot be replaced during use to adapt to different types of connecting terminals. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a connector with replaceable terminals, which is easy to adapt to different types of connection terminals.
[0005] The technical solution adopted by this utility model to solve the problem is:
[0006] A connector with replaceable terminals includes at least two terminals and a base for fixed connection to and power draw from a circuit. A snap-fit structure is provided between the lower end of the terminals and the upper end of the base. The terminals are detachably and vertically snapped onto the base via the snap-fit structure. The upper end of the base is also detachably snapped with a cover for limiting and fixing the terminals.
[0007] A further improved technical solution is that the snap-fit structure includes a slot formed on the upper surface of the base and a protrusion provided on the lower side of the terminal, wherein the lower end of the terminal and the protrusion are inserted into the slot in a transition fit.
[0008] In a further improved technical solution, the snap-fit structure also includes a protrusion located in the slot, which abuts against the side of the lower end of the terminal when the terminal is inserted into the slot.
[0009] A further improved technical solution is that the upper cover has an elongated hole for the terminal to pass through, and the edge of the elongated hole covers the upper surface of the protrusion.
[0010] In a further improved technical solution, a soft pressure plate is provided between the top cover and the base, and the pressure plate extends to the edge of the elongated hole and between the protrusion.
[0011] A further improved technical solution is that at least two buckles are evenly arranged on the four sides of the base, and the four sides of the top cover are provided with snap rings that are the same number as the number of snap blocks and correspond one-to-one with the snap blocks for engaging with the snap blocks.
[0012] In a further improved technical solution, the upper surface of the base is a circular surface, and the terminals are evenly arranged around the center of the upper surface.
[0013] A further improved technical solution is provided, wherein the base includes a mounting platform and a connecting column, the connecting column is integrally fixedly connected to the center of the bottom surface of the mounting platform, and the connecting column is provided with threads for threaded connection to the circuit.
[0014] A further improved technical solution is that each of the terminals is detachably fitted with an insulating protective sleeve.
[0015] A further improved technical solution is that each protective sleeve is provided with a locking hole and a flexible connecting line, the end of the connecting line is provided with a connecting block, and the connecting block can be detachably connected to the locking hole of the adjacent protective sleeve.
[0016] The beneficial effects of this utility model are as follows: This utility model adopts a base that can be fixedly connected to the circuit and draw power from the circuit, and a snap-fit structure is provided between the lower end of the terminal and the upper end of the base. The snap-fit structure allows the terminal to be detachably and vertically snapped onto the base. When it is necessary to replace it with a different type of terminal, simply remove the existing terminal and snap it onto the terminal of the required type. At the same time, the base is also provided with a top cover, which can restrict and fix the terminal, better fix the terminal, and prevent it from loosening. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention;
[0019] Figure 3 This is an exploded view of the present invention;
[0020] Figure 4 This is a top view of the present invention. Detailed Implementation
[0021] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this invention. The various technical features of this invention can be combined interactively without contradicting each other.
[0022] Reference Figures 1 to 3A connector with replaceable terminals 1 includes three terminals 1, a base 2, and a top cover 3. The base 2 is fixedly connected to a circuit for drawing power from the circuit. A snap-fit structure is provided between the lower end of each terminal 1 and the upper end of the base 2, allowing the terminal 1 to be detachably and vertically snapped onto the base 2. The top cover 3 is also detachably snapped onto the upper end of the base 2 to restrain and fix the terminal 1, preventing it from coming off. The number of terminals 1 is at least two, preferably three, and the specific number can be set according to actual conditions.
[0023] like Figure 1 and Figure 3 As shown, the upper cover 3 and the base 2 are connected by retaining rings 32 and buckles 25. Specifically, three buckles 25 are evenly distributed around the four sides of the base 2, and three retaining rings 32 are correspondingly distributed around the four sides of the upper cover 3. The number of retaining rings 32 and the retaining blocks are the same and correspond one-to-one. One retaining ring 32 and one corresponding buckle 25 constitute a pair, so the number of retaining rings 32 and buckles 25 is at least two pairs, and the specific number can be set according to actual needs.
[0024] In one embodiment, such as Figure 1 and Figure 3 As shown, the upper surface of the base 2 is circular, and the terminals 1 are evenly arranged around the center of the upper surface. This ensures that the distance between adjacent terminals 1 remains consistent, and the electrical performance is also relatively consistent.
[0025] Preferably, the base 2 includes a mounting platform 21 and a connecting column 22. The connecting column 22 is integrally fixedly connected to the center of the bottom surface of the mounting platform 21, and the connecting column 22 is provided with threads for threaded connection in a circuit. The threaded connection facilitates the installation and disassembly of the base 2.
[0026] In one embodiment, reference is made to Figure 2 and Figure 3 The snap-fit structure includes a slot 23 formed on the upper surface of the base 2 and a protrusion 11 provided on the lower side of the terminal 1. The lower end of the terminal 1 and the protrusion 11 are inserted into the slot 23 with a transition fit. Through the transition fit, the lower end of the terminal 1 can be firmly fixed in the slot 23.
[0027] To improve the locking effect, the locking structure also includes a protrusion 24 in the slot 23. When the terminal 1 is inserted into the slot 23, the protrusion 24 abuts against the side of the lower end of the terminal 1. Figure 3As shown, there are two protrusions 24 in the slot 23, located on both sides of the slot 23 along its length, while there is one protrusion 11 at the lower end of the terminal 1, located in the middle of the lower side of the terminal 1. After snapping in, the protrusion 11 is positioned between the two protrusions 24. Of course, the number of protrusions 24 in the slot 23 can be set to one, and the number of protrusions 11 at the lower end of the terminal 1 can be set to two, in which case the protrusion 24 will be positioned between the two protrusions 11 after installation. Other numbers of protrusions 11 and protrusions 24 can also be used according to actual needs.
[0028] In one embodiment, reference is made to Figure 2 and Figure 3 The upper cover 3 has an elongated hole 31 through which the terminal 1 passes. The edge of the elongated hole 31 covers the upper surface of the protrusion 11, and the edge of the elongated hole 31 is used to block the protrusion 11 to prevent it from coming loose from the slot 23.
[0029] To further ensure the anti-loosening effect, a soft pressure plate 4 is provided between the upper cover 3 and the base 2, and the pressure plate 4 extends to the edge of the elongated hole 31 and between the protrusion 11. After the upper cover 3 and the base 2 are engaged, the soft pressure plate 4 is squeezed, and the pressure plate 4 deforms to eliminate tolerance and press the protrusion 11, thus better stabilizing the terminal 1.
[0030] In one embodiment, reference is made to Figures 1 to 3 Each terminal 1 is detachably fitted with an insulating protective sleeve 5. For unused terminals 1, the protective sleeve 5 serves to provide insulation and dust protection. The protective sleeve 5 is made of a plastic component with a certain degree of toughness.
[0031] In addition, such as Figure 3 and Figure 4 As shown, each protective sleeve 5 is provided with a locking hole 51 and a flexible connecting wire 52. The end of the connecting wire 52 is provided with a connecting block 53, and the connecting block 53 is detachably connected to the locking hole 51 of the adjacent protective sleeve 5, so that all the protective sleeves 5 can be connected in a string. If only one of them needs to be installed, the connecting wire 52 can be disconnected from the locking hole 51, and the corresponding protective sleeve 5 can be removed.
[0032] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] It should be noted that the above is only a further description of the present utility model in conjunction with the embodiments, and does not constitute a limitation on the protection scope of the present utility model. Any simple modifications to the present technology are only to achieve the purpose of the present invention by essentially the same means, and should all fall within the protection scope of the present utility model.
Claims
1. A connector with replaceable terminals, comprising at least two terminals and a base for fixed connection to and power draw from a circuit, characterized in that: A snap-fit structure is provided between the lower end of the terminal and the upper end of the base. The terminal can be detachably and vertically snapped onto the base through the snap-fit structure. The upper end of the base can also be detachably snapped with a cover for limiting and fixing the terminal.
2. The connector with replaceable terminals according to claim 1, characterized in that: The snap-fit structure includes a slot formed on the upper surface of the base and a protrusion on the lower side of the terminal, wherein the lower end of the terminal and the protrusion are inserted into the slot in a transition fit.
3. A connector with replaceable terminals according to claim 2, characterized in that: The snap-fit structure also includes a protrusion in the slot, which abuts against the side of the lower end of the terminal when the terminal is inserted into the slot.
4. A connector with replaceable terminals according to claim 3, characterized in that: The top cover has an elongated hole through which the terminal passes, and the edge of the elongated hole covers the upper surface of the protrusion.
5. A connector with replaceable terminals according to claim 4, characterized in that: A soft pressure plate is also provided between the top cover and the base, and the pressure plate extends to the edge of the elongated hole and between the protrusion.
6. A connector with replaceable terminals according to claim 1, characterized in that: The base has at least two buckles evenly distributed around its four sides, and the top cover has snap rings that are the same number as the number of snap blocks and correspond one-to-one with the snap blocks, for engaging with the snap blocks.
7. A connector with replaceable terminals according to claim 1, characterized in that: The upper surface of the base is circular, and the terminals are evenly arranged around the center of the upper surface.
8. A connector with replaceable terminals according to claim 1, characterized in that: The base includes a mounting platform and a connecting column. The connecting column is integrally fixed to the center of the bottom surface of the mounting platform, and the connecting column is provided with threads for threaded connection to the circuit.
9. A connector with replaceable terminals according to any one of claims 1 to 8, characterized in that: Each of the terminals is removably fitted with an insulating protective sleeve.
10. A connector with replaceable terminals according to claim 9, characterized in that: Each protective sleeve is provided with a locking hole and a flexible connecting line. The end of the connecting line is provided with a connecting block, and the connecting block can be detachably connected to the locking hole of the adjacent protective sleeve.