Clamping type voltage equalizing cap suitable for multi-outlet terminal

Abstract

The application provides a clamping type voltage-sharing cap suitable for multiple outlet ends, which comprises a voltage-sharing cap body, a three-way wire guide plate and a clamping assembly; the bottom end of the voltage-sharing cap body is detachably connected with the three-way wire guide plate; the three-way wire guide plate is uniformly provided with three wire holes; the voltage-sharing cap body is internally provided with a square mounting groove, and the clamping assembly is mounted in the mounting groove; the clamping assembly comprises a clamping plate, a fixed top plate, a sliding rail, two connecting rods and three sliding elastic clamping mechanisms; the clamping plate is arranged below the fixed top plate in parallel through the two connecting rods and is connected with each other; the lower surface of the fixed top plate is fixedly provided with the sliding rail; the sliding rail is slidably connected with the three sliding elastic clamping mechanisms; the clamping plate is uniformly provided with three clamping holes; and the clamping arms of the three sliding elastic clamping mechanisms are correspondingly arranged in the three clamping holes. The application helps to improve the connection efficiency, reduce the occupied space, alleviate the alignment difficulty in the conductor plug-in process and reduce the human adjustment deviation.

Description

Technical Field

[0001] This application relates to the field of electrical equipment connection technology, and in particular to a clamp-type equalizing cap suitable for multiple outgoing terminals. Background Technology

[0002] In high-voltage electrical equipment such as pumped-storage generators, the outgoing conductor serves as the connection between the generator's internal and external power transmission systems. Its encapsulation, fixation, and voltage equalization treatment directly affect the safety and stability of the system's operation. To ensure that the outgoing conductor possesses good mechanical fixation, voltage equalization characteristics, and electrical safety during long-term operation, a voltage equalization cap structure is typically installed on the outside of the outgoing conductor. This serves to shield stray electric fields, stabilize the conductor, and improve insulation reliability.

[0003] Currently, commonly used technical solutions often employ a "one cap, one conductor" approach. This means each conductor is equipped with an independent equalizing cap for fixation and encapsulation, with internal fastening structures (such as threaded clamping and slotted limits) used for mechanical fixation. While this approach is structurally mature and easy to assemble, meeting the installation requirements of conventional single-conductor terminals, in actual construction, with the increasing prevalence of centralized arrangement of three-phase generator conductors and the growing demands for compact structures and improved assembly efficiency, the traditional "one cap, one line" design has gradually revealed problems such as large space occupation, difficulty in assembly coordination, dispersed equipotential bonding, and high material costs.

[0004] To address the aforementioned issues, if a unified encapsulation, alignment, and clamping fixation of the three outgoing conductors could be achieved within a single equalizing cap structure, it would not only effectively reduce the number of caps and compress the structural volume but also achieve overall equipotential protection of the outgoing conductors and synchronous structural stability. However, existing "one cap, multiple wires" structures generally lack reliable conductor clamping methods, making it difficult to ensure that all three conductors can be quickly and appropriately clamped and fixed within the same cap, which has become a key issue restricting the practical application of this technology. Utility Model Content

[0005] This application provides a clamping equalizing cap suitable for multiple lead-out terminals, in order to solve the problem in the prior art that it is impossible to simultaneously and stably clamp and fix three lead-out conductors in the same equalizing cap.

[0006] This application provides a clamping equalizing cap suitable for multiple output terminals, including an equalizing cap body, a three-way lead plate, and a clamping assembly;

[0007] The equalizing cap body is a hollow cap-shaped structure with its opening facing downwards. The three-way conductor plate is detachably connected to its bottom opening. The three-way conductor plate has three evenly spaced conductor holes along its length for the three outgoing conductors of the pumped-storage generator to pass through. The equalizing cap body has a square mounting groove located above the bottom opening, and the clamping assembly is installed within the mounting groove. The clamping assembly includes a clamping plate, a fixed top plate, a slide rail, two connecting rods, and three sliding elastic clamping mechanisms. The fixed top plate connects... The clamping plate is connected to the top wall of the mounting groove. It is arranged parallel to the bottom of the fixed top plate and connected to each other via two connecting rods. The slide rail is fixedly installed on the lower surface of the fixed top plate. Three evenly distributed sliding elastic clamping mechanisms are slidably connected on the slide rail. Three clamping holes are evenly opened on the clamping plate. The clamping arms of the three sliding elastic clamping mechanisms are respectively located in the three clamping holes, so as to clamp and fix the three outgoing conductors by means of elastic clamping action.

[0008] In one alternative embodiment, the sliding elastic clamping mechanism includes a clamping arm, a sliding block, a spring, and a connecting plate.

[0009] The sliding block is slidably mounted on the slide rail, the connecting plate is fixedly connected to the fixed top plate, and the spring is connected between the sliding block and the connecting plate. The sliding block is connected to one end of the clamping arm, and the other end of the clamping arm passes through the corresponding clamping hole. When the conductor at the outlet end is inserted into the clamping hole, the end of the clamping arm located in the clamping hole can move toward one side of the clamping hole and drive the sliding block to move synchronously during the movement to compress the spring and generate the elastic restoring force required for the clamping arm to clamp the conductor at the outlet end.

[0010] In one alternative embodiment, the three-way conductor plate is detachably installed at the bottom opening of the equalizing cap body by means of screws or snap-fit ​​structures. The three conductor holes and the three clamping holes are arranged coaxially in a vertical direction to correspond one-to-one with each other to accommodate the insertion path of the outgoing conductor.

[0011] In one alternative embodiment, both the clamping plate and the fixed top plate are rectangular plate structures, and they are connected by two parallel connecting rods to form an integral frame. The connecting rods extend vertically to maintain a gap between the clamping plate and the fixed top plate.

[0012] In one alternative embodiment, the sidewall of the wire hole has a limiting groove for limiting and locking the wire when the clamping arm clamps the lead-out conductor.

[0013] In one alternative embodiment, the equalizing cap body adopts a cap structure consisting of an outer shell and an inner insulating shell. The outer shell is made of aluminum alloy, and the inner insulating shell is embedded inside the outer shell and is made of polycarbonate or epoxy fiberglass board. The mounting groove is located at the bottom center of the inner insulating shell and is used to install the clamping assembly.

[0014] In one alternative embodiment, the clamping plate and the fixing top plate are made of glass fiber reinforced polycarbonate or epoxy glass fiber laminate, and the tee conductor plate is made of polyamide or reinforced polypropylene.

[0015] In one alternative, the clamping arm is made of reinforced nylon 66 material.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] 1. This application provides a clamp-type equalizing cap suitable for multiple outgoing conductors. The equalizing cap body has a hollow, cap-shaped structure with an opening facing downwards, and a detachable three-way conductor plate is provided at its bottom. The three-way conductor plate has three conductor holes evenly distributed along its length, for the insertion of three outgoing conductors. This even distribution of conductor holes allows the outgoing conductors to automatically achieve initial positioning as they enter the equalizing cap body, maintaining a relatively consistent insertion direction and relative position. Furthermore, the integrated conductor introduction structure of the three-way conductor plate allows multiple outgoing conductors to be pre-positioned simultaneously on a single three-way conductor plate, simplifying the wiring structure. Simultaneously, this structure helps reduce the difficulty of alignment during conductor insertion, reduces human adjustment deviations, and effectively avoids the phenomenon of inconsistent conductor alignment and positioning in the traditional "one cap, one line" installation mode. Compared with the traditional one cap, one line structure, this design helps improve connection efficiency and reduce space occupation. The detachable three-way conductor plate also makes subsequent maintenance, replacement, or inspection more convenient.

[0018] 2. This application provides an installation groove within the inner cavity of the equalizing cap body. This groove has a regular square outline. A clamping assembly is installed inside the groove, comprising a clamping plate, a fixed top plate, a slide rail, two connecting rods, and three sliding elastic clamping mechanisms. The fixed top plate is mounted on the top of the installation groove, while the clamping plate is positioned parallel below it via the connecting rods, forming a set of vertically spaced plate structures. The connecting rods connect the clamping plate and the fixed top plate, defining the distance between the two plates while constructing a stable support frame. This structural arrangement provides the clamping assembly with good structural stability after assembly, effectively reducing the possibility of structural loosening and vibration during conductor insertion and clamping at the outlet end. This positively impacts the overall deformation resistance of the device and the reliability of the clamping process. Furthermore, the two connecting rods vertically connect the upper and lower fixed top plates and the clamping plate, maintaining a distance between the two plates, providing sufficient space for the slide rail and sliding elastic clamping mechanisms to accommodate and operate.

[0019] 3. This application improves the fixing method of the outgoing conductor by configuring three sliding elastic clamping mechanisms in the clamping assembly and setting a slide rail below the fixed top plate. The three sliding elastic clamping mechanisms are arranged sequentially along the slide rail, and one end of the clamping arm of each sliding elastic clamping mechanism is located in the clamping hole on the clamping plate. When the outgoing conductor is inserted into the clamping hole, it will drive the clamping arm to shift to one side of the clamping hole. Then, through the elastic clamping action of the sliding elastic clamping mechanism, the outgoing conductor is clamped and fixed in the clamping hole by the clamping arm. This allows each outgoing conductor to be positioned and clamped individually, avoiding the problem of uneven force distribution caused by multiple conductors being clamped together. Meanwhile, this clamping structure, which relies on elastic clamping to fix the conductor at the output end in the clamping hole with clamping arms, can adaptively adjust according to the thickness of the conductor at the output end during the clamping process, improving the adaptability and avoiding jamming caused by the thickness deviation of the conductor at the output end. This effectively enhances clamping stability and reduces debugging time during operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of a clamp-type voltage equalization cap suitable for multiple output terminals provided in an embodiment of this application;

[0022] Figure 2An internal schematic diagram of a clamp-type voltage equalizing cap suitable for multiple output terminals provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a clamping assembly provided in an embodiment of this application;

[0024] Figure 4 A schematic diagram of a clamping assembly provided in one embodiment of this application from another perspective;

[0025] Figure 5 A schematic diagram of the conductor at the outgoing end of the clamping plate when it is fixed, according to an embodiment of this application;

[0026] Figure 6 for Figure 1 A magnified view of a portion of point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100-Equalizing cap body; 101-Outer shell; 102-Inner insulating shell; 110-Mounting groove; 200-Clamping assembly; 210-Clamping through plate; 211-Clamping hole; 220-Fixed top plate; 230-Connecting rod; 240-Sliding elastic clamping mechanism; 241-Clamping arm; 242-Sliding block; 243-Spring; 244-Connecting plate; 250-Slide rail; 300-Tee conductor plate; 310-Wire hole; 311-Limiting groove; 400-Outlet conductor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0030] like Figures 1-6 As shown, this application embodiment provides a clamping equalizing cap suitable for multiple output terminals, including an equalizing cap body 100, a three-way conductor plate 300, and a clamping assembly 200.

[0031] The equalizing cap body 100 is a hollow cap-shaped structure with its opening facing downwards. A three-way conductor plate 300 is detachably connected to its bottom opening. The three-way conductor plate 300 has three conductor holes 310 evenly distributed along its length for the three outgoing conductors 400 of the pumped storage generator to pass through. The equalizing cap body 100 has a square mounting groove 110 located above the bottom opening. A clamping assembly 200 is installed in the mounting groove 110. The clamping assembly 200 includes a clamping through plate 210, a fixed top plate 220, a slide rail 250, two connecting rods 230, and three sliding elastic clamping mechanisms 240. The fixed top plate 220 is connected to the top wall of the mounting groove 110. The clamping through plate 210 is arranged parallel to each other below the fixed top plate 220 via two connecting rods 230. A slide rail 250 is fixedly installed on the lower surface of the fixed top plate 220. Three evenly distributed sliding elastic clamping mechanisms 240 are slidably connected on the slide rail 250. Three clamping holes 211 are evenly opened on the clamping through plate 210. The clamping arms 241 of the three sliding elastic clamping mechanisms 240 are respectively located in the three clamping holes 211, so that the three outgoing conductors 400 can be clamped and fixed by the clamping arms 241 through the elastic clamping action.

[0032] This embodiment employs a hollow, cap-shaped equalizing cap body 100 with an opening facing downwards, and a detachably connected three-way conductor plate 300 is provided at its bottom end. The three-way conductor plate 300 has three conductor holes 310 evenly arranged along its length, for the insertion of three outgoing conductors 400. This even arrangement of conductor holes 310 allows the outgoing conductors 400 to automatically achieve initial positioning as they enter the equalizing cap body 100, maintaining a relatively consistent insertion direction and relative position. Furthermore, the integrated conductor introduction structure of the three-way conductor plate 300 allows multiple outgoing conductors 400 to be pre-positioned simultaneously within a single three-way conductor plate 300, simplifying the wiring structure. Meanwhile, this structure helps to reduce the difficulty of alignment during conductor insertion, reduces human adjustment deviation, and better avoids the phenomenon of inconsistent alignment and positioning of conductors in the traditional "one cap one line" installation mode. Compared with the traditional one cap one line structure, this design helps to improve connection efficiency and reduce space occupation. At the same time, the T-connector 300 is detachable, making later maintenance, replacement or inspection more convenient.

[0033] Secondly, in this embodiment, an installation groove 110 is provided in the inner cavity of the equalizing cap body 100. The installation groove 110 has a regular square outline. A clamping assembly 200 is installed inside the installation groove 110. The clamping assembly includes a clamping through plate 210, a fixed top plate 220, a slide rail 250, two connecting rods 230, and three sliding elastic clamping mechanisms 240. The fixed top plate 220 is installed at the top of the installation groove 110, and the clamping through plate 210 is arranged parallel to it below it by means of the connecting rods 230. The two form a set of plate-like structures arranged vertically and horizontally. The connecting rods 230 connect the clamping through plate 210 and the fixed top plate 220, thereby constructing a stable support frame while limiting the distance between the two plates. With this structural arrangement, the clamping assembly 200 has good structural stability after assembly. It can effectively reduce the possibility of structural loosening and vibration during the insertion and clamping of the conductor 400 at the outlet end. This has a positive effect on improving the overall deformation resistance of the device and the reliability of the clamping process. Moreover, since the two connecting rods 230 vertically connect the upper and lower fixed top plates 220 and the clamping through plate 210, a gap is maintained between the two plates, which can provide sufficient space for the slide rail 250 and the sliding elastic clamping mechanism 240 to accommodate and operate.

[0034] Furthermore, this embodiment further improves the fixing method of the lead conductor 400 by configuring three sliding elastic clamping mechanisms 240 in the clamping assembly 200 and providing a slide rail 250 below the fixed top plate 220. The three sliding elastic clamping mechanisms 240 are arranged sequentially along the slide rail, and one end of the clamping arm 241 of each sliding elastic clamping mechanism 240 is located in the clamping hole 211 on the clamping through plate 210. When the lead conductor 400 is inserted into the clamping hole 211, it will drive the clamping arm 241 to shift to one side of the clamping hole 211. Then, through the elastic clamping action of the sliding elastic clamping mechanism 240, the lead conductor 400 is clamped and fixed in the clamping hole 211 by the clamping arm 241. This allows each lead conductor 400 to be positioned and clamped individually, avoiding the problem of uneven force distribution caused by multiple conductors being clamped together. Meanwhile, this clamping structure, which relies on elastic clamping action to fix the lead conductor 400 in the clamping hole 211 with clamping arm 241, can adaptively adjust according to the thickness of the lead conductor 400 during the clamping process, improving the adaptability and avoiding jamming caused by thickness deviation of the lead conductor 400. This effectively enhances clamping stability and reduces debugging time during operation.

[0035] In some embodiments, the sliding elastic clamping mechanism 240 includes a clamping arm 241, a sliding block 242, a spring 243, and a connecting plate 244.

[0036] The sliding block 242 is slidably mounted on the slide rail 250, and the connecting plate 244 is fixedly connected to the fixed top plate 220. A spring 243 is connected between the sliding block 242 and the connecting plate 244. One end of the sliding block 242 is connected to the clamping arm 241, and the other end of the clamping arm 241 passes through the corresponding clamping hole 211. When the conductor 400 at the output end is inserted into the clamping hole 211, the end of the clamping arm 241 located in the clamping hole 211 can move toward one side of the clamping hole 211 and drive the sliding block 242 to move synchronously to compress the spring 243 and generate the elastic restoring force required for the clamping arm 241 to clamp the conductor 400 at the output end.

[0037] In this embodiment, the specific structure of the sliding elastic clamping mechanism 240 is further described. One end of the clamping arm 241 is connected to the sliding block 242, which can move horizontally along the slide rail 250 below the fixed top plate 220. The connecting plate 244 is fixedly mounted on the fixed top plate 220, and the spring 243 is installed between the sliding block 242 and the connecting plate 244 to provide elastic support. When the lead conductor 400 is inserted into the clamping hole 211 on the clamping through plate 210, the clamping arm 241 is squeezed, causing the sliding block 242 to slide to one side. The spring 243 is compressed accordingly. After the lead conductor 241 is fully inserted, the spring 243 releases its elastic force to push the sliding block 242 back, thereby causing the clamping arm to return to a state of contact with the lead conductor 400, so as to continuously press the lead conductor 400. Furthermore, the spring 243 outputs a flexible elastic force. This structural design provides a certain degree of adaptability to the lead conductor 400 and reduces damage to the lead conductor 400 during clamping. In addition, due to its automatic springback characteristic, this structure can quickly clamp the lead conductor 400 after insertion, improving the smoothness of the installation process and providing a certain buffer and compensation for loosening problems that may occur during use, thus helping to reduce the probability of connection abnormalities caused by loose contact.

[0038] In some embodiments, the three-way conductor plate 300 is detachably installed at the bottom opening of the equalizing cap body 100 by means of screws or snap-fit ​​structures. The three conductor holes 310 and the three clamping holes 211 are coaxially arranged in a vertical direction to match the insertion path of the conductor 400 at the output end.

[0039] In this embodiment, the three-way conductor plate 300 is connected to the bottom opening of the equalizing cap body 100 using a screw or snap-fit ​​structure, enabling quick assembly and disassembly and reducing the disassembly and assembly limitations caused by the integrated structure. Regarding the conductor layout, the three conductor holes 310 on the three-way conductor plate 300 and the three clamping holes 211 on the clamping plate 210 are arranged coaxially in the vertical direction, allowing each lead conductor 400 to be directly aligned with the clamping position during insertion, avoiding insertion misalignment or jamming. This helps reduce manual adjustment operations, simplifies the installation process, and improves assembly efficiency.

[0040] In some embodiments, the clamping plate 210 and the fixed top plate 220 are both rectangular plate structures, and they are connected by two parallel connecting rods 230 to form an integral frame. The connecting rods 230 extend vertically to maintain a gap between the clamping plate 210 and the fixed top plate 220.

[0041] In this embodiment, the clamping through plate 210 and the fixed top plate 220 are designed as rectangular plate structures, and connected into an integrated frame by two vertically extending and parallel connecting rods 230, thereby improving the overall rigidity and structural stability of the clamping assembly 200. Furthermore, the rectangular plate design of the clamping through plate 210 facilitates the distribution of the clamping holes 211, and the rectangular plate design of the fixed top plate 220 also facilitates the installation of the slide rail 250. This allows for a more uniform arrangement of the three clamping positions, which is beneficial for the coordinated arrangement of the sliding elastic clamping mechanisms 240. At the same time, this shape facilitates mass production and standardized processing, promoting assembly consistency and interchangeability of the components during production.

[0042] In some embodiments, the sidewall of the wire hole 310 has a limiting groove 311 for limiting and locking when the clamping arm 241 clamps the lead conductor 400.

[0043] In this embodiment, a limiting groove 311 is provided on the side wall of the wire hole 310, so that the lead conductor 400, while being elastically pressed by the clamping arm 241, can also be partially embedded in the limiting groove 311 to form auxiliary positioning, thereby enhancing the constraint force of the lead conductor 400 in the axial and radial directions. Compared with the structure that relies solely on elastic clamping, this composite positioning method can effectively reduce the risk of slippage or loosening of the lead conductor 400 in the clamping area when the lead conductor 400 is subjected to external vibration, thermal expansion and contraction, or accidental impact, thus making the clamping assembly 200 more stable during use.

[0044] Furthermore, the limiting groove 311 and the clamping arm 241 work together to form a dual-constraint structure without changing the original clamping method. This design not only improves the fixing reliability of the outgoing conductor 400 after insertion, but also helps to improve the positioning consistency when multiple outgoing conductors 400 are installed in parallel. It is especially suitable for applications with complex operating conditions or large equipment vibrations, such as pumped storage power generation systems. Through the composite constraint of the physical structure, high clamping stability and installation accuracy can be achieved without relying on complex auxiliary mechanisms.

[0045] Furthermore, the limiting groove 311, as an integrally formed structure on the wire hole 310, eliminates the need for additional independent positioning elements. Therefore, while maintaining the overall structural simplicity, it does not impose any extra burden on the clamping operation. The operation remains highly convenient, and the effectiveness of the clamping components is improved upon the original structure, helping the overall device maintain stable performance under long-term, high-frequency operation scenarios.

[0046] In some embodiments, the equalizing cap body 100 adopts a cap structure consisting of an outer shell 101 and an inner insulating shell 102. The outer shell 101 is made of aluminum alloy, and the inner insulating shell 102 is embedded inside the outer shell 101 and is made of polycarbonate or epoxy fiberglass board. The mounting groove 110 is provided at the bottom center of the inner insulating shell 102 for mounting the clamping assembly 200.

[0047] The equalizing cap body 100 adopts a double-layer structure design, consisting of an outer shell 101 and an inner insulating shell 102 forming an integrated cap body. The outer shell 101 is preferably made of aluminum alloy, which has strong mechanical support and good corrosion resistance, making it suitable for harsh power applications such as humid and outdoor environments. The inner insulating shell 102 is made of materials such as polycarbonate or epoxy fiberglass board, which has high dielectric strength and insulation performance. It can effectively reduce the risk of insulation breakdown between conductive components while physically isolating the conductor 400 at the output end.

[0048] This double-layer structure not only balances external structural strength and internal electrical safety, but also reduces potential discharge hazards caused by tightly packed conductors during use, thus improving the overall safety adaptability of the cap. The inner insulating shell 102 has a mounting groove 110 at its bottom center for embedding the clamping assembly 200, ensuring a good structural fit with the insulating layer. This reduces localized stress buildup or electrical faults that may result from installation misalignment, and helps improve the stability of the assembly process.

[0049] In some embodiments, the clamping plate 210 and the fixing top plate 220 are made of glass fiber reinforced polycarbonate or epoxy glass fiber laminate, and the tee conductor plate 300 is made of polyamide or reinforced polypropylene material.

[0050] In this embodiment, the clamping plate 210 and the fixed top plate 220 are made of glass fiber reinforced polycarbonate or epoxy glass fiber laminate as the main materials. These engineering materials have both good mechanical strength and electrical insulation properties, which can effectively reduce leakage or creepage problems caused by the proximity of conductive parts while maintaining structural rigidity, thereby improving the electrical isolation level of the structure. At the same time, their heat resistance and anti-aging ability are also excellent, making them more suitable for long-term operation in environments with high temperature, vibration or humidity of power generation equipment, thereby extending the overall service life.

[0051] Secondly, the three-way conductor plate 300 is made of polyamide or reinforced polypropylene. These materials possess high toughness and good wear resistance, maintaining the stability of the hole walls during repeated insertion and insertion of the conductor 400 at the outlet, reducing material cracks caused by fatigue or thermal stress. Furthermore, this type of material also possesses basic electrical insulation properties and a certain degree of heat resistance, which helps improve the overall thermal stability and electrical safety of the wiring connection.

[0052] In summary, this embodiment achieves a balance between structural load-bearing capacity, electrical insulation performance, and durability by using engineering plastic materials with distinct performance advantages for key structural components. This material selection effectively adapts to the long-term operational requirements of the complex electrical environment at power generation sites, and helps maintain the stability and reliability of the equalizing cap's operation without increasing maintenance burden.

[0053] In some embodiments, the clamping arm 241 is made of reinforced nylon 66 material.

[0054] In this embodiment, the clamping arm 241 is made of reinforced nylon 66 as the main material. This material is widely used in electrical structural components, possessing both excellent mechanical properties and electrical insulation performance, making it particularly suitable for components subjected to frequent elastic deformation. Compared to traditional general-purpose plastics, reinforced nylon 66 has higher tensile strength and impact toughness. During the continuous action between the clamping arm 241 and the lead conductor 400, it can significantly reduce the risk of structural damage due to fatigue, thereby extending its service life.

[0055] In complex operating environments, such as humid, high-temperature, or oily conditions, this material maintains low water absorption and stable dimensional stability, resisting deformation due to external environmental fluctuations and ensuring stable clamping force. This property helps reduce the likelihood of conductor loosening or clamping failure caused by material performance degradation, improving system reliability. Simultaneously, reinforced nylon 66 possesses high dielectric strength and arc resistance, effectively suppressing current leakage paths even in direct contact with the lead conductor 400, reducing the risk of electric shock or breakdown, and creating multiple barriers for the safe operation of the entire equalizing cap 100.

[0056] The usage process of the clamp-type voltage equalization cap with multiple output terminals in this application embodiment is as follows:

[0057] In the actual installation process, the three outgoing conductors 400 are first passed sequentially through the three wire holes 310 evenly arranged along the length of the three-way conductor plate 300, ensuring that they are clearly oriented and vertically aligned during insertion, which facilitates subsequent installation operations. Since the wire holes 310 are coaxially arranged with the clamping holes 211 on the clamping plate 210, after the outgoing conductors 400 are passed through the wire holes 310, it is easy to insert the outgoing conductors 400 into the clamping holes 211, so that the end of the outgoing conductors 400 is inserted into the gap between the clamping arm 241 and the wall of the clamping hole 211.

[0058] In the subsequent installation steps, the three outgoing conductors 400 are pushed upwards, passing through the clamping holes 211 on the clamping plate 210 and continuing upwards out of the clamping plate 210. During the pushing process, the outgoing conductors 400 gradually increase their contact with the clamping arm 241, pushing the clamping arm 241 and causing the sliding block 242 to slide along the slide rail 250, thereby compressing the spring 243. After the outgoing conductors 400 reach the predetermined position, the rebound force generated by the spring 243 causes the clamping arm 241 to move closer to the outgoing conductors 400, forming a stable contact with the surface of the outgoing conductors 400, thereby achieving elastic clamping of the conductors 400, which helps to maintain the stability of the position of the outgoing conductors 400 during operation.

[0059] After installation, the equalizing cap body 100 is completely covered in the generator output terminal area, providing mechanical protection and external shielding for the conductor 400. The clamping assembly 200 is embedded in the mounting groove 110 of the inner insulating shell 102 and is connected to the fixed top plate 220 and the clamping through plate 210 by two vertically arranged connecting rods 230, forming an overall frame structure. This layout helps to enhance the stability of the structural connection and reduce the impact of external disturbances on the internal structure. Without changing the overall structure, internal inspection and maintenance can be carried out by disassembling the tee conductor plate 300, which facilitates maintenance work and also helps to improve the flexibility of the device and the convenience of on-site operation.

[0060] It should be noted that, since the clamp-type equalizing cap in this embodiment is suitable for simultaneously installing three outgoing conductors, to ensure a balance between structural compactness and mechanical strength, appropriate volume control should be implemented in the cap's design during actual manufacturing. This will make the overall structure easier to install and use in confined equipment spaces. Therefore, this equalizing cap is more suitable for generator outgoing conductors with relatively small specifications and medium or low rated currents, meeting both insulation equalization and clamping requirements. In applications with high current and large conductor specifications, the clamping components and wire hole dimensions can be adjusted according to actual usage needs to match the equalization installation requirements of different conductor specifications.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A clamp-type voltage equalizing cap suitable for multiple cable outlets, characterized in that, Includes the equalizing cap body, the T-connector guide plate, and the clamping assembly; The equalizing cap body is a hollow cap-shaped structure with its opening facing downwards. The three-way conductor plate is detachably connected to its bottom opening. The three-way conductor plate has three evenly spaced conductor holes along its length for the three outgoing conductors of the pumped-storage generator to pass through. The equalizing cap body has a square mounting groove located above the bottom opening, and the clamping assembly is installed within the mounting groove. The clamping assembly includes a clamping plate, a fixed top plate, a slide rail, two connecting rods, and three sliding elastic clamping mechanisms. The fixed top plate connects... The clamping plate is connected to the top wall of the mounting groove. It is arranged parallel to the bottom of the fixed top plate and connected to each other via two connecting rods. The slide rail is fixedly installed on the lower surface of the fixed top plate. Three evenly distributed sliding elastic clamping mechanisms are slidably connected on the slide rail. Three clamping holes are evenly opened on the clamping plate. The clamping arms of the three sliding elastic clamping mechanisms are respectively located in the three clamping holes, so as to clamp and fix the three outgoing conductors by means of elastic clamping action.

2. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 1, characterized in that, The sliding elastic clamping mechanism includes a clamping arm, a sliding block, a spring, and a connecting plate; The sliding block is slidably mounted on the slide rail, the connecting plate is fixedly connected to the fixed top plate, and the spring is connected between the sliding block and the connecting plate. The sliding block is connected to one end of the clamping arm, and the other end of the clamping arm passes through the corresponding clamping hole. When the conductor at the outlet end is inserted into the clamping hole, the end of the clamping arm located in the clamping hole can move toward one side of the clamping hole and drive the sliding block to move synchronously during the movement to compress the spring and generate the elastic restoring force required for the clamping arm to clamp the conductor at the outlet end.

3. The clamp-type equalizing cap suitable for multiple output terminals according to claim 1, characterized in that, The three-way conductor plate is detachably installed at the bottom opening of the equalizing cap body by means of screws or snap-fit ​​structure. The three conductor holes and the three clamping holes are arranged coaxially in the vertical direction to match the insertion path of the conductor at the output end.

4. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 1, characterized in that, Both the clamping plate and the fixed top plate are rectangular plate structures, and they are connected by two parallel connecting rods to form an integral frame. The connecting rods extend vertically to maintain a gap between the clamping plate and the fixed top plate.

5. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 2, characterized in that, The sidewall of the wire hole has a limiting groove, which is used to limit and lock the wire end conductor when the clamping arm clamps it.

6. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 1, characterized in that, The equalizing cap body adopts a cap structure consisting of an outer shell and an inner insulating shell. The outer shell is made of aluminum alloy, and the inner insulating shell is embedded inside the outer shell and is made of polycarbonate or epoxy fiberglass board. The mounting groove is located at the bottom center of the inner insulating shell and is used to install the clamping assembly.

7. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 1, characterized in that, The clamping plate and the fixing top plate are made of glass fiber reinforced polycarbonate or epoxy glass fiber laminate, and the three-way conductor plate is made of polyamide or reinforced polypropylene material.

8. The clamp-type voltage equalizing cap suitable for multiple output terminals according to claim 2, characterized in that, The clamping arm is made of reinforced nylon 66 material.

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