Alternating current terminal and alternating current terminal combination structure

Abstract

The utility model relates to an alternating current terminal and alternating current terminal combination structure, including base, plug -in terminal and bridging piece, and plug -in terminal is detachably installed in base, base includes first casing, first conductor and second conductor, plug -in terminal includes second casing and third conductor, and third conductor is inserted with second conductor and cooperates, bridging piece is connected in first casing slidingly, first conductor is equipped with first bridging arm for with bridging piece contact cooperation, second conductor is equipped with second bridging arm for with bridging piece contact cooperation, first bridging arm and second bridging arm left and right interval arrangement, the interval length of both is less than the length of bridging piece, and the break -make of first conductor and second conductor is controlled through the left and right sliding of bridging piece. Compared with prior art, the utility model has higher expansibility, and can guarantee the reliability and flexibility of bridging connection under the scene of high current and high frequency maintenance.

Description

Technical Field

[0001] This utility model relates to the field of terminal blocks, and in particular to an AC terminal block and an AC terminal block assembly structure. Background Technology

[0002] In electrical systems, AC terminals are widely used for current transmission within or between devices. Unlike signal terminals, which operate under low-voltage conditions, AC terminals are often in high-voltage, high-current conditions, thus placing higher demands on current-carrying capacity and safety. However, as the types and number of devices in a system increase, the types and number of AC terminals also rise accordingly, leading to more complex equipment installation and maintenance. When replacing or expanding equipment, technicians need to disconnect the existing equipment from the AC terminals one by one and connect the new equipment one by one. The overall process is cumbersome, has low wiring efficiency, and lacks flexibility in expansion.

[0003] To address the aforementioned issues, some modularly designed AC terminals exist in the prior art. For example, Chinese patent document CN119764885A discloses an AC test terminal block and its assembly structure, including a base, pluggable terminals, and bridging terminals. Both the pluggable terminals and bridging terminals are detachably mounted on the base. The base includes a first housing, a first conductor, and a second conductor, both housed within the first housing. The first conductor has an input port and a first connection port, while the second conductor has a second connection port and a plug-in interface. The pluggable terminals include a second housing and a third conductor, which has a conductive post and an output port. The bridging terminals connect the first and second conductors. This design, by detachably combining the base and pluggable terminals, offers advantages in terms of maintenance and expansion flexibility. However, while the bridging terminals are detachably plugged into the base and locked by springs or clips, repeated plugging and unplugging can easily cause spring fatigue failure, wear, and other issues leading to poor contact.

[0004] In summary, while existing modular AC terminal designs improve wiring efficiency and expansion flexibility, the reliability of bridging terminals remains a problem in scenarios involving high current carrying capacity and high-frequency maintenance. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an AC terminal and AC terminal combination structure, which has high scalability and can ensure the reliability and flexibility of bridging connection in high current and high frequency maintenance scenarios.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: An AC terminal, comprising: The base includes a first housing and a first conductor and a second conductor installed inside the first housing, wherein the first housing is provided with an input port; A pluggable terminal is detachably mounted on the base and includes a second housing and a third conductor installed in the second housing. The third conductor is plugged into the second conductor, and the second housing is provided with an output port. A bridging component is slidably connected within the first housing. The first conductor has a first bridging arm for contacting and engaging with the bridging component, and the second conductor has a second bridging arm for contacting and engaging with the bridging component. The first bridging arm and the second bridging arm are arranged at a distance from each other, and the distance between them is less than the length of the bridging component. The switching on and off of the first conductor and the second conductor is controlled by sliding the bridging component left and right.

[0007] The beneficial effects of this plan are:

[0008] (1) Compared with plug-in connection, this utility model uses the bridging component to slide left and right to make it contact or separate from the first conductor or the second conductor, so as to realize the conduction or disconnection of the first conductor and the second conductor. This can avoid the problem of poor contact caused by the failure of spring or clip during high-frequency maintenance, thus ensuring the reliability of the bridging connection. Moreover, the bridging component is slidably connected to the first housing, which is not easy to lose, improves the integration level of AC terminals, and the position of the bridging component on the first housing is clearly visible, which makes it convenient for the operator to judge the on / off state of the circuit.

[0009] (2) The base and plug-in terminals adopt a modular separation design. The plug-in terminals can be detachably installed on the base, giving the entire AC terminal a high degree of flexibility and expandability.

[0010] Furthermore, the bridging component includes an upper bridging terminal and a lower bridging terminal respectively disposed on the upper and lower sides of the first bridging arm or the second bridging arm, and a locking component for connecting the upper bridging terminal and the lower bridging terminal.

[0011] The advantages of this solution are as follows: the detachable bridging connector consists of an upper bridging terminal, a lower bridging terminal, and a locking element. The electrical connection is ensured by the fastening of the locking element. Its mechanical connection is highly stable and can avoid problems such as loose connections under high current and harsh operating conditions.

[0012] Furthermore, the first conductor and the second conductor are respectively provided with a first shorting interface and a second shorting interface.

[0013] Furthermore, the third conductor has an output interface at one end near the output port, and the plug-in terminal is fixedly provided with an elastic locking member for clamping the wire at the output interface.

[0014] The beneficial effect of this solution is that the elastic locking component can adapt to wires of different diameters and fix the wires, ensuring the stability of the AC terminal output connection.

[0015] Furthermore, both the first bridging arm and the second bridging arm are slide rails, and the sum of the length of the first bridging arm or the length of the second bridging arm and the interval between them is greater than the length of the bridging component.

[0016] Furthermore, the upper bridging terminal is provided with a lower sliding bar, and the lower bridging terminal is provided with an upper sliding bar; the first bridging arm is provided with a first sliding groove adapted to the lower sliding bar and the upper sliding bar, and / or the second bridging arm is provided with a second sliding groove adapted to the lower sliding bar and the upper sliding bar.

[0017] Furthermore, the upper sidewall of the output interface is provided with a threaded hole in the radial direction, the fixed end of the elastic locking member is provided above the threaded hole and is provided with a matching through hole, and the free end of the elastic locking member is provided inside the output interface and below the threaded hole.

[0018] The beneficial effects of this solution are as follows: after the fastening screw passes through the through hole and engages with the threaded hole, the end of the fastening screw can further abut against the free end of the elastic locking member, thereby strengthening the clamping force of the elastic locking member on the wire and avoiding the problem of wear on the wire connection end caused by direct contact between the fastening screw and the wire.

[0019] This utility model also provides an AC terminal assembly structure, including a plurality of the above-mentioned AC terminals arranged side by side; The two adjacent AC terminals are fastened to each other by snaps and slots provided on the second housing, and positioned to each other by positioning pins and positioning holes provided on the second housing.

[0020] Furthermore, it also includes a guide rail, and the first housing is provided with a bottom groove that is adapted to the guide rail.

[0021] Furthermore, the outermost AC terminal also includes a first cover plate mounted on the base and a second cover plate mounted on the plug-in terminal. The first cover plate and the second cover plate are fixedly connected by screws, and an auxiliary gripper is provided on the outer side wall of the second cover plate.

[0022] The beneficial effects of this solution are as follows: the auxiliary gripper set on the outer wall of the second cover plate enables the operator to quickly find the force application point when performing insertion and removal operations, reducing the difficulty of operation and further improving the convenience and safety of operation. Attached Figure Description

[0023] Figure 1 This is an exploded view of an AC terminal in this embodiment.

[0024] Figure 2 This is a schematic diagram of the assembly structure of the AC terminals in this embodiment.

[0025] Figure 3 This is a schematic diagram of the structure of the first conductor in this embodiment.

[0026] Figure 4 This is a schematic diagram of the structure of the second conductor in this embodiment.

[0027] Figure 5 This is a schematic diagram of the bridging component in this embodiment.

[0028] Figure 6 This is a schematic diagram of the internal structure of the plug-in terminals in this embodiment.

[0029] Figure 7 This is a schematic diagram of the external structure of the plug-in terminals in this embodiment.

[0030] Figure 8 This is a schematic diagram of an AC terminal assembly structure according to this embodiment.

[0031] Figures 1-8 middle: 1. Base; 11. First housing; 111. Input port; 112. Bottom slide groove; 12. First conductor; 121. First shorting interface; 122. Input interface; 123. First bridging arm; 1231. First slide groove; 13. Second conductor; 131. Second shorting interface; 132. Plug interface; 133. Second bridging arm; 1331. Second slide groove; 14. Bridging component; 141. Upper bridging terminal; 1411. Lower slide bar; 142. Lower bridging terminal; 1421. Upper slide bar; 143. Locking component; 15. First cover plate; 2. Plug-in terminal; 21. Second housing; 211. Output port; 212. Snap-in; 213. Slot; 214. Positioning post; 215. Positioning hole; 22. Third conductor; 221. Output interface; 2211. Threaded hole; 222. Plug-in post; 23. Resilient locking element; 231. Through hole; 24. Second cover plate; 241. Auxiliary gripper; 3. Guide rail. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", 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 element 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 utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] like Figure 1-2 As shown, this embodiment of an AC terminal includes a base 1, a pluggable terminal 2, and a bridging component 14. The pluggable terminal 2 is detachably mounted on the base 1. The base 1 includes a first housing 11 and a first conductor 12 and a second conductor 13 installed within the first housing 11. The first housing 11 is provided with an input port 111. The pluggable terminal 2 includes a second housing 21 and a third conductor 22 installed within the second housing 21. The second housing 21 is provided with an output port 211.

[0036] In this embodiment, the structure of the first conductor 12 is as follows: Figure 3 As shown, the first conductor 12 is provided with a first shorting interface 121, and an input interface 122 is provided at its end near the input port 111. The input port 111 is connected to an external cable wire through the input interface 122, and the connection end of the wire is crimped with a screw. The third conductor 22 is provided with an output interface 221 at its end near the output port 211. The output port 211 is connected to an external device wire through the output interface 221.

[0037] Preferably, in this embodiment, the structure of the second conductor 13 is as follows: Figure 4 As shown, the second conductor 13 is provided with a second shorting interface 131 and a plug interface 132. One end of the third conductor 22 is provided with a plug post 222 adapted to the plug interface 132. The second conductor 13 and the third conductor 22 are plugged into each other at the disassembly / reassembly point of the plug-in terminal 2 and the base 1.

[0038] The advantage of this setup is that the base 1 and the plug-in terminal 2 adopt a modular and separate design, and the plug-in terminal 2 can be detachably installed on the base 1, giving the entire AC terminal a high degree of flexibility and expandability.

[0039] As a special feature of this embodiment, the bridging member 14 is slidably connected within the first housing 11. The first conductor 12 is provided with a first bridging arm 123 for contacting and engaging with the bridging member 14, and the second conductor 13 is provided with a second bridging arm 133 for contacting and engaging with the bridging member 14. The first bridging arm 123 and the second bridging arm 133 are arranged at a distance from each other, and the distance between them is less than the length of the bridging member 14. The switching on and off of the first conductor 12 and the second conductor 13 is controlled by the left and right sliding of the bridging member 14.

[0040] The advantage of this design is that by sliding the bridging component 14 left and right to contact or separate it from the first conductor 12 or the second conductor 13, the conduction of the first conductor 12 and the second conductor 13 can be achieved. This avoids the problem of poor contact caused by the failure of the spring or clip during high-frequency maintenance, ensuring the reliability of the bridging connection, and the bridging is convenient and flexible. In addition, the bridging component 14 is slidably connected to the first housing 11, making it less likely to be lost, improving the integration level of the AC terminals, and the position of the bridging component 14 on the first housing is clearly visible, making it convenient for the operator to judge the on / off status of the circuit.

[0041] Preferably, in this embodiment, both the first bridging arm 123 and the second bridging arm 133 are slide rails, and the sum of the length of the first bridging arm 123 or the length of the second bridging arm 133 and the interval between them is greater than the length of the bridging member 14.

[0042] It should be noted that in this embodiment, both the first bridging arm 123 and the second bridging arm 133 are slide rails. This is merely a preferred embodiment. Those skilled in the art should understand that the first bridging arm 123 and the second bridging arm 133 may have one of the bridging arms as a slide rail, and the other bridging arm as a connector that only makes contact connections and does not provide sliding guidance.

[0043] Preferably, in this embodiment, the structure of the bridging member 14 is as follows: Figure 5As shown. The bridging component 14 includes an upper bridging terminal 141 and a lower bridging terminal 142 respectively disposed on the upper and lower sides of the first bridging arm 123 or the second bridging arm 133, and a locking member 143 for connecting the upper bridging terminal 141 and the lower bridging terminal 142. Further, in this embodiment, the upper bridging terminal 141 is provided with a lower sliding bar 1411, and the lower bridging terminal 142 is provided with an upper sliding bar 1421; the first bridging arm 123 and the second bridging arm 133 are respectively provided with a first sliding groove 1231 and a second sliding groove 1331 adapted to the lower sliding bar 1411 and the upper sliding bar 1421. Further, in this embodiment, the locking member 143 is a screw, and is threadedly connected to the upper bridging terminal 141 and the lower bridging terminal 142.

[0044] The advantage of this configuration is that the upper bridging terminal 141, the lower bridging terminal 142 and the locking member 143 constitute a detachable bridging component. The electrical connection is ensured by the fastening of the locking member 14. Its mechanical connection has high stability and can avoid problems such as loose connection under high current and harsh operating conditions.

[0045] Preferably, in this embodiment, the structure of the plug-in terminal 2 is as follows: Figure 6 As shown. A spring-loaded locking member 23 for clamping the wire is fixedly provided at the output interface 221 of the plug-in terminal 2. Further, in this embodiment, a threaded hole 2211 is provided radially on the upper sidewall of the output interface 221. The fixed end of the spring-loaded locking member 23 is located above the threaded hole 2211 and has a corresponding through hole 231. The free end of the spring-loaded locking member 23 is located inside the output interface 221 and below the threaded hole 2211. When the operator inserts an external wire through the output port 211 into the output interface 221, the spring-loaded locking member 23 clamps the wire. Then, a fastening screw passes through the through hole 231 and the threaded hole 2211 in sequence and abuts against the spring-loaded locking member 23 to further reinforce the wire.

[0046] The advantage of this design is that the elastic locking member 23 can adapt to wires of different diameters and fix the wires, ensuring the stability of the AC terminal output connection. After the fastening screw passes through the through hole 231 and engages with the threaded hole 2211, the end of the fastening screw further abuts against the free end of the elastic locking member 23. This not only strengthens the clamping force of the elastic locking member 23 on the wire, but also avoids the problem of wear on the wire connection end caused by direct contact between the fastening screw and the wire.

[0047] like Figure 8 As shown, an AC terminal assembly structure of this embodiment includes a plurality of AC terminals and guide rails 3 arranged side by side as described above. In this embodiment, the structure of the first housing 11 is as follows: Figure 1-2 As shown. The first housing 11 is provided with a bottom groove 112 that is adapted to the guide rail 3.

[0048] Preferably, in this embodiment, the structure of the second housing 21 is as follows: Figure 7 As shown. The second housing 21 is provided with a latch 212 and a slot 213 adapted to the latch 212. Two adjacent AC terminals are fastened together by the latch 212 and the slot 213. Further, in this embodiment, the second housing 21 is provided with a positioning post 214 and a positioning hole 215 adapted to the positioning post 214. Two adjacent AC terminals are positioned together by the positioning post 214 and the positioning hole 215.

[0049] Preferably, in this embodiment, the outermost AC terminal also includes a first cover plate 15 mounted on the base 1 and a second cover plate 24 mounted on the plug-in terminal 2. The first cover plate 15 and the second cover plate 24 are fixedly connected by screws, and an auxiliary gripper 241 is provided on the outer side wall of the second cover plate 24.

[0050] The advantage of this design is that by setting an auxiliary gripper 241 on the outer side wall of the second cover plate 24, the operator can quickly find the point of force application when performing insertion and removal operations, reducing the difficulty of operation and further improving the convenience and safety of operation.

[0051] It should be noted that the specific procedures for the actual operation of the AC terminal assembly structure are well known and mastered by those skilled in the art, and will not be described in detail in this embodiment. The number of AC terminals and the connection of the first shorting interface 121 or the second shorting interface 131 between different AC terminals can be adjusted according to actual site requirements.

[0052] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An AC terminal, characterized in that, include: The base (1) includes a first housing (11) and a first conductor (12) and a second conductor (13) installed in the first housing (11). The first housing (11) is provided with an input port (111). A plug-in terminal (2) is detachably mounted on the base (1) and includes a second housing (21) and a third conductor (22) mounted in the second housing (21). The third conductor (22) is plugged into the second conductor (13). The second housing (21) is provided with an output port (211). A bridging component (14) is slidably connected within the first housing (11). The first conductor (12) is provided with a first bridging arm (123) for contacting and engaging with the bridging component (14). The second conductor (13) is provided with a second bridging arm (133) for contacting and engaging with the bridging component (14). The first bridging arm (123) and the second bridging arm (133) are arranged at a distance from each other, and the distance between them is less than the length of the bridging component (14). The opening and closing of the first conductor (12) and the second conductor (13) are controlled by the left and right sliding of the bridging component (14).

2. The AC terminal according to claim 1, characterized in that, The bridging component (14) includes an upper bridging terminal (141) and a lower bridging terminal (142) respectively disposed on the upper and lower sides of the first bridging arm (123) or the second bridging arm (133), and a locking component (143) for connecting the upper bridging terminal (141) and the lower bridging terminal (142).

3. The AC terminal according to claim 1, characterized in that, The first conductor (12) and the second conductor (13) are respectively provided with a first shorting interface (121) and a second shorting interface (131).

4. The AC terminal according to claim 1, characterized in that, The third conductor (22) has an output interface (221) at one end near the output port (211), and the plug-in terminal (2) has an elastic locking member (23) for clamping the wire fixed at the output interface (221).

5. The AC terminal according to claim 1, characterized in that, Both the first bridging arm (123) and the second bridging arm (133) are slide rails. The sum of the length of the first bridging arm (123) or the length of the second bridging arm (133) and the interval between them is greater than the length of the bridging member (14).

6. The AC terminal according to claim 2, characterized in that, The upper bridging terminal (141) is provided with a lower slide bar (1411), and the lower bridging terminal (142) is provided with an upper slide bar (1421); the first bridging arm (123) is provided with a first groove (1231) adapted to the lower slide bar (1411) and the upper slide bar (1421), and / or the second bridging arm (133) is provided with a second groove (1331) adapted to the lower slide bar (1411) and the upper slide bar (1421).

7. The AC terminal according to claim 4, characterized in that, The upper sidewall of the output interface (221) is provided with a threaded hole (2211) in the radial direction. The fixed end of the elastic locking member (23) is provided above the threaded hole (2211) and is provided with a matching through hole (231). The free end of the elastic locking member (23) is provided inside the output interface (221) and below the threaded hole (2211).

8. An AC terminal assembly structure, characterized in that, Includes a plurality of AC terminals arranged side by side as described in any one of claims 1-7; The two adjacent AC terminals are fastened to each other by a buckle (212) and a slot (213) provided on the second housing (21), and positioned to each other by a positioning post (214) and a positioning hole (215) provided on the second housing (21).

9. The AC terminal assembly structure according to claim 8, characterized in that, It also includes a guide rail (3), and the first housing (11) is provided with a bottom groove (112) adapted to the guide rail (3).

10. The AC terminal assembly structure according to claim 8, characterized in that, The outermost AC terminal also includes a first cover plate (15) mounted on the base (1) and a second cover plate (24) mounted on the plug-in terminal (2). The first cover plate (15) and the second cover plate (24) are fixedly connected by screws. An auxiliary gripper (241) is provided on the outer side wall of the second cover plate (24).

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