Secondary wiring assembly for mutual inductor

Abstract

The utility model provides a secondary wiring assembly for a mutual inductor, which comprises a wiring board main body, one side of the wiring board main body is provided with a plurality of mounting ports, the mounting ports are used for external wiring, the other side of the wiring board main body is provided with a bayonet socket, the bayonet socket is provided with a plurality of butt joint sockets, and the secondary wiring assembly further comprises a plug connector. One end of the plug connector is provided with a plurality of butt-joint plugs, the number of the butt-joint sockets is the same as that of the butt-joint plugs, the butt-joint sockets and the butt-joint plugs are arranged in a one-to-one correspondence mode, the butt-joint plugs can be inserted into the butt-joint sockets, and the other end of the plug connector is provided with a plurality of wiring ports which are used for being connected with secondary wiring. The wiring ports and the butt joint sockets are the same in number and are arranged in a one-to-one correspondence mode. By arranging the wiring board main body, the mounting port, the bayonet socket, the plug connector and the corresponding butt-joint socket and butt-joint plug, the assembly process is simplified, the assembly efficiency is remarkably improved, and the operation convenience and reliability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of current transformer wiring, and specifically relates to a secondary wiring assembly for current transformers. Background Technology

[0002] As a critical high-voltage measuring device in power systems, capacitive voltage transformers utilize their electromagnetic units to achieve safe voltage signal transmission and system grounding protection through secondary windings and grounding terminals. In current industry standards, the secondary terminal block serves as the interface between the electromagnetic unit and external instrument circuits, undertaking the combined functions of insulation isolation, multi-channel signal distribution, and mechanical fixation.

[0003] The existing secondary terminal block is molded using an epoxy resin vacuum casting process. Its core structure includes several embedded copper studs, which are positioned by a mold to achieve integral curing with the reinforced epoxy resin matrix. During assembly, the secondary winding leads need to be pre-crimped with O / T type terminals. After manually comparing the wire markings, they are sequentially inserted into the corresponding studs and secured with double nuts.

[0004] However, there are still some problems with the existing technology: In the process of sequentially inserting the secondary winding leads after crimping the O / T type terminals into the corresponding studs and clamping them with double nuts, the operator needs to complete the work of crimping the O / T type terminals, inserting the corresponding studs, and clamping with double nuts in sequence. The assembly process is cumbersome and inefficient. In addition, the position of the secondary terminal block is fixed. When the operator performs secondary wiring in sequence, they need to avoid the studs to be connected later. Furthermore, the already connected secondary winding leads and their corresponding studs will also affect the operator's operation when connecting subsequent secondary winding leads. Utility Model Content

[0005] This utility model addresses the problems in the prior art by providing a secondary wiring assembly for current transformers, which solves the problems of cumbersome assembly and low efficiency when using double nuts to clamp and fix the secondary winding leads in the prior art.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This application provides a secondary wiring assembly for a current transformer, including a terminal block body. One side of the terminal block body has several mounting ports for external wiring. The other side of the terminal block body has a plug socket with several mating ports distributed on it. The secondary wiring assembly also includes a plug member. One end of the plug member has several mating plugs, with the number of mating ports and mating plugs being the same and corresponding one-to-one. The mating plugs can be inserted into the mating ports. The other end of the plug member has several wiring ports for connecting to secondary wiring, with the number of wiring ports being the same and corresponding one-to-one with the number of mating ports.

[0008] Preferably, an isolation unit is also provided on one side of the mounting port on the main body of the terminal block. The isolation unit includes several isolation plates, and an isolation plate is provided between any two adjacent mounting ports.

[0009] Preferably, the connector has a positioning hole, and the end of the connector with the mating plug is also provided with a positioning element. The positioning element is provided in correspondence with the positioning hole, and the positioning element can be inserted into the positioning hole.

[0010] Preferably, the length of the positioning element is not less than the length of the mating plug.

[0011] Preferably, the side of the positioning member away from the connector has a rounded corner, and the opening of the positioning hole also has a rounded corner.

[0012] Preferably, at least one locking platform is provided on the side end face of the connector, and at least one cantilever claw is provided on the connector, which can engage with the locking platform.

[0013] Preferably, a locking platform is provided on each of the two symmetrical side ends of the connector, and two symmetrically arranged cantilever claws are provided on the connector, with the cantilever claws corresponding to the locking platforms one by one.

[0014] Preferably, the cantilever claw and the plug-in are connected by a connecting plate and a torsion spring. One end of the connecting plate is fixed on the plug-in, and the other end of the connecting plate is connected to one end of the torsion spring, and the other end of the torsion spring is connected to the cantilever claw.

[0015] Preferably, metal springs are provided inside the mating socket, mating plug, and wiring port.

[0016] As can be seen from the above technical solutions, this application has the following advantages:

[0017] 1. By setting up the main body of the terminal block, mounting port, plug socket, plug parts and their corresponding mating sockets and plugs, a modular design for secondary wiring is realized, which simplifies the assembly process, significantly improves assembly efficiency, and avoids the problem of subsequent wiring operations being affected by the limited position of the studs in the traditional wiring method, thus improving the convenience and reliability of operation.

[0018] 2. By setting up an isolation unit and isolation plate on one side of the installation port, the electrical signals between adjacent installation ports are effectively isolated, preventing signal interference, enhancing the insulation performance of the secondary wiring components, and ensuring the stability and safety of signal transmission.

[0019] 3. By opening positioning holes on the connector and setting corresponding positioning parts on the connector, precise alignment between the connector and the connector is achieved, avoiding misalignment or offset between the plug and the socket, improving the accuracy and stability of the connection, and reducing the assembly difficulty.

[0020] 4. By setting the length of the positioning component to be no less than the length of the mating plug, it is ensured that the positioning component can be inserted into the positioning hole first, providing guidance for the subsequent insertion of the mating plug, while avoiding the mating plug from interfering with the insertion, further improving the accuracy of the insertion and the convenience of operation.

[0021] 5. By creating rounded corners on the side of the positioning component away from the connector and at the opening of the positioning hole, frictional resistance during the insertion process is reduced, avoiding wear or jamming caused by hard contact between the positioning component and the positioning hole, thus improving the smoothness of insertion and the service life of the components.

[0022] 6. By setting a locking platform on the connector and a cantilevered locking claw on the connector, a stable locking connection between the connector and the connector is achieved, preventing the connector from loosening or falling off under vibration or external force, thus improving the mechanical stability and reliability of the secondary wiring assembly.

[0023] 7. By setting locking platforms on both symmetrical end faces of the connector and two symmetrical cantilever claws on the connector, balanced force is achieved between the connector and the connector, further enhancing the stability of the locking and ensuring the long-term stable operation of the secondary wiring assembly under complex working conditions.

[0024] 8. By connecting the cantilever claw and the connector with a connecting plate and a torsion spring, the elastic reset function of the cantilever claw is realized, making the clamping operation more flexible and convenient. At the same time, the elastic force of the torsion spring ensures tight contact between the cantilever claw and the clamping table, improving the reliability of the clamping and the service life of the components.

[0025] 9. By incorporating metal springs in the mating sockets, plugs, and wiring ports, the reliability of electrical contact during the mating process is ensured, contact resistance is reduced, and the stability and efficiency of signal transmission are improved. At the same time, the elastic design of the metal springs can compensate for minor deviations during the mating process, enhancing the applicability and durability of the components. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 Schematic diagram of the structure of the secondary wiring assembly for the current transformer provided in the embodiments of this application. Figure 1 ;

[0028] Figure 2 Schematic diagram of the structure of the secondary wiring assembly for the current transformer provided in the embodiments of this application. Figure 2;

[0029] Figure 3 Schematic diagram of the structure of the secondary wiring assembly for the current transformer provided in the embodiments of this application. Figure 3 ;

[0030] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle;

[0031] Figure 5 This is a schematic diagram of the secondary wiring assembly and secondary wiring for a current transformer provided in an embodiment of this application;

[0032] Figure 6 A side view of the structure of the secondary wiring assembly and secondary wiring for the current transformer provided in an embodiment of this application.

[0033] In the diagram: 1. Terminal block body; 2. Mounting port; 3. Plug socket; 4. Connecting socket; 5. Plug component; 6. Connecting plug; 7. Wiring port; 8. Isolation plate; 9. Positioning hole; 10. Positioning component; 11. Rounded corner; 12. Locking platform; 13. Cantilever claw; 14. Connecting plate; 15. Torsion spring; 16. Metal spring sheet; 17. Spring terminal. Detailed Implementation

[0034] To make the purpose, features, and advantages of this application more apparent and understandable, specific embodiments and accompanying drawings will be used to clearly and completely describe the technical solution protected by this application. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this patent.

[0035] Example:

[0036] Please see Figures 1-6 This application provides a technical solution: a secondary wiring assembly for a current transformer, comprising:

[0037] The assembly includes a junction box body 1, with several mounting ports 2 on one side for external wiring, and a plug socket 3 on the other side. The plug socket 3 has several mating ports 4 distributed on it. The secondary wiring assembly also includes a plug member 5, with several mating plugs 6 on one end. The number of mating ports 4 and mating plugs 6 are the same and they are arranged in a one-to-one correspondence. The mating plugs 6 can be inserted into the mating ports 4. The other end of the plug member 5 has several wiring ports 7 for connecting to the secondary wiring. The number of wiring ports 7 is the same as the number of mating ports 4 and they are arranged in a one-to-one correspondence.

[0038] In this process, the secondary wiring is first connected using spring-loaded terminals 17, and then inserted one by one into the wiring port 7 until all the secondary wiring to be connected is inserted into the wiring port 7. The staff then picks up the connector 5 and directly connects the docking plug 6 to the docking port 4 to complete the secondary wiring of the current transformer.

[0039] By setting up the terminal block body 1, mounting port 2, plug socket 3, plug part 5 and its corresponding mating socket 4 and mating plug 6, a modular design for secondary wiring is realized, which simplifies the assembly process, significantly improves assembly efficiency, and avoids the problem of subsequent wiring operations being affected by the limited position of the stud in the traditional wiring method, thus improving the convenience and reliability of operation.

[0040] In this embodiment, an isolation unit is also provided on one side of the mounting port 2 on the main body 1 of the terminal block. The isolation unit includes several isolation plates 8. An isolation plate 8 is provided between any two adjacent mounting ports 2. By setting the isolation unit and isolation plate 8 on one side of the mounting port 2, the electrical signals between adjacent mounting ports 2 are effectively isolated, signal interference is prevented, the insulation performance of the secondary wiring assembly is enhanced, and the stability and safety of signal transmission are ensured.

[0041] In this embodiment, the connector 3 has a positioning hole 9, and the connector 5 has a positioning element 10 at one end where the connector plug 6 is located. The positioning element 10 is correspondingly positioned to the positioning hole 9 and can be inserted into the positioning hole 9. In this embodiment, the length of the positioning element 10 is not less than the length of the connector plug 6. By setting the positioning hole 9 on the connector 3 and the corresponding positioning element 10 on the connector 5, the precise alignment of the connector 5 and the connector 3 is achieved, avoiding misalignment or offset between the connector plug 6 and the connector 4, improving the accuracy and stability of the connection, and reducing the assembly difficulty. By setting the length of the positioning element 10 to be not less than the length of the connector plug 6, it is ensured that the positioning element 10 can be inserted into the positioning hole 9 first, providing guidance for the subsequent insertion of the connector plug 6, while avoiding misalignment between the connector plug 6 and the connector 4, further improving the accuracy of the connection and the convenience of operation.

[0042] In this embodiment, the positioning member 10 has a rounded corner 11 on the side away from the plug-in member 5, and the opening of the positioning hole 9 also has a rounded corner 11. By setting the rounded corner 11 on the side of the positioning member 10 away from the plug-in member 5 and the opening of the positioning hole 9, the frictional resistance during the insertion process is reduced, and wear or jamming caused by hard contact between the positioning member 10 and the positioning hole 9 is avoided, thereby improving the smoothness of insertion and the service life of the component.

[0043] In this embodiment, at least one locking platform 12 is provided on the side end face of the plug-in base 3, and at least one cantilever claw 13 is provided on the plug-in component 5. The cantilever claw 13 can engage with the locking platform 12. In this embodiment, a locking platform 12 is provided on each of the two symmetrical side end faces of the plug-in base 3, and two symmetrically arranged cantilever claws 13 are provided on the plug-in component 5. The cantilever claws 13 are arranged one-to-one with the locking platform. By setting the locking platform 12 on the plug-in base 3 and the cantilever claw 13 on the plug-in component 5, a stable engagement between the plug-in component 5 and the plug-in base 3 is achieved, preventing the plug-in component 5 from loosening or falling off under vibration or external force, thus improving the mechanical stability and reliability of the secondary wiring assembly. By setting the locking platform 12 on each of the two symmetrical side end faces of the plug-in base 3 and the two symmetrical cantilever claws 13 on the plug-in component 5, balanced force is achieved between the plug-in component 5 and the plug-in base 3, further enhancing the stability of the engagement and ensuring the long-term stable operation of the secondary wiring assembly under complex working conditions.

[0044] In this embodiment, the cantilever claw 13 and the plug-in 5 are connected by a connecting plate 14 and a torsion spring 15. One end of the connecting plate 14 is fixed to the plug-in 5, and the other end of the connecting plate 14 is connected to one end of the torsion spring 15. The other end of the torsion spring 15 is connected to the cantilever claw 13. By connecting the cantilever claw 13 and the plug-in 5 through the connecting plate 14 and the torsion spring 15, the elastic reset function of the cantilever claw 13 is realized, making the clamping operation more flexible and convenient. At the same time, the elastic force of the torsion spring 15 ensures a tight contact between the cantilever claw 13 and the clamping platform 12, improving the reliability of the clamping and the service life of the components.

[0045] In this embodiment, metal springs 16 are provided in the mating socket 4, mating plug 6, and wiring port 7. This arrangement ensures the reliability of electrical contact during the mating process, reduces contact resistance, and improves the stability and efficiency of signal transmission. At the same time, the elastic design of the metal springs 16 can compensate for minor deviations during the mating process, enhancing the applicability and durability of the components.

[0046] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0048] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this specification. The singular forms “a,” “described,” and “the” used in one or more embodiments of this specification and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0049] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit the scope of one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the protection scope of one or more embodiments of this specification.

Claims

1. A secondary wiring assembly for a transformer comprising a terminal block body (1), characterized in that, The main body (1) of the terminal block has several mounting ports (2) on one side, which are used for external wiring. The other side of the main body (1) of the terminal block has a plug socket (3), which has several mating ports (4) distributed on the plug socket (3). The secondary wiring assembly also includes a plug component (5), which has several mating plugs (6) on one end. The number of mating ports (4) and mating plugs (6) are the same and they are set one-to-one. The mating plugs (6) can be inserted into the mating ports (4). The other end of the plug component (5) has several wiring ports (7), which are used for secondary wiring. The number of wiring ports (7) is the same as the number of mating ports (4) and they are set one-to-one.

2. The secondary wiring assembly for a current transformer according to claim 1, characterized in that, An isolation unit is also provided on one side of the mounting port (2) on the main body (1) of the terminal block. The isolation unit includes several isolation plates (8), and an isolation plate (8) is provided between any two adjacent mounting ports (2).

3. The secondary wiring assembly for a current transformer according to claim 1, characterized in that, The connector (3) has a positioning hole (9). The connector (5) has a positioning element (10) at one end of the connector (6). The positioning element (10) is positioned in correspondence with the positioning hole (9) and can be inserted into the positioning hole (9).

4. The secondary wiring assembly for a current transformer according to claim 3, characterized in that, The length of the positioning component (10) is not less than the length of the mating plug (6).

5. The secondary wiring assembly for a current transformer according to any one of claims 3 or 4, characterized in that, The positioning member (10) has a rounded corner (11) on the side away from the connector (5), and the opening of the positioning hole (9) also has a rounded corner (11).

6. The secondary wiring assembly for a current transformer according to claim 1, characterized in that, At least one locking platform (12) is provided on the side end face of the plug-in (3), and at least one cantilever claw (13) is provided on the plug-in (5), which can engage with the locking platform (12).

7. The secondary wiring assembly for a current transformer according to claim 6, characterized in that, A card plate (12) is provided on each of the two symmetrical side ends of the plug-in base (3), and two symmetrically arranged cantilever claws (13) are provided on the plug-in component (5). The cantilever claws (13) are arranged in a one-to-one correspondence with the card plate.

8. The secondary wiring assembly for a current transformer according to any one of claims 6 or 7, characterized in that, The cantilever claw (13) and the plug-in (5) are connected to the torsion spring (15) via a connecting plate (14). One end of the connecting plate (14) is fixed on the plug-in (5), and the other end of the connecting plate (14) is connected to one end of the torsion spring (15). The other end of the torsion spring (15) is connected to the cantilever claw (13).

9. The secondary wiring assembly for a current transformer according to claim 1, characterized in that, Metal springs (16) are provided in the mating socket (4), mating plug (6) and wiring port (7).

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