A series filter reactor

Abstract

The utility model discloses a series filter reactor, including reactor main part, quick -witted subassembly and lock axle rod. The top of reactor main part is equipped with a plurality of binding posts, and quick -witted subassembly fixed mounting is in the top of binding post. Quick -witted subassembly includes pole box, flange cover, positive pressure body, locking piece and main swivel ring, wherein main swivel ring rotatablely installs in positive pressure body bottom, and locking piece slides up and down under the guidance of top spring and guide rod, and its top surface and main swivel ring bottom surface are equipped with ratchet structure to realize one -way meshing lock. The inside of main swivel ring is provided with a plurality of spiral tooth grooves, and the surface of lock axle rod is provided with the spiral rib matched with it, drives main swivel ring movement through rotating after inserting, realizes quick plug -in and self -locking locking. This structure has the advantages of wiring fast, simple operation, anti -loose reliable, strong shock resistance etc, is applicable to the use in the power filter equipment under the high reliability occasion.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, specifically a series filter reactor. Background Technology

[0002] Series filter reactors, as important components in power systems for filtering harmonics, improving power factor, and limiting short-circuit current, are widely used in high-voltage parallel capacitor banks and reactive power compensation systems. Traditional reactors often rely on bolted connections, clamps, or welding to complete structural assembly and electrical connections during installation and wiring. While these structures meet basic electrical conduction and mechanical stability requirements, they still present many inconveniences in practical applications.

[0003] For example, existing reactor end wiring structures typically use screws or crimp connections, requiring manual tightening of nuts or clamping with tools when connecting to busbars or external leads. This process is time-consuming and suffers from limitations in installation angle, inconvenient space operation, and poor assembly consistency. The wiring complexity increases significantly, especially when multiple reactors are installed in parallel. Furthermore, during transportation and operation, some reactors lack effective mechanical locking mechanisms, making connection components prone to loosening due to vibration or thermal expansion and contraction, leading to poor contact or even malfunctions.

[0004] On the other hand, while some technical solutions that attempt to introduce quick-connect structures can simplify the connection process, they generally lack reliable anti-rotation and anti-loosening designs. Even a slight rotation of the quick-connect component during operation can cause tripping or poor electrical contact, affecting the stable operation of the system. Therefore, existing technology lacks a quick-connect device structure that combines rapid installation, high-strength locking, and reverse anti-rotation functions.

[0005] In summary, existing series filter reactors still have room for improvement in terms of ease of installation, connection reliability, and safety of wiring components. There is an urgent need for a technical solution that is simple in structure, easy to operate, and prevents loosening, in order to meet the requirements of modern power equipment for high-efficiency and high-reliability connections. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a series filter reactor, including a reactor body, a quick-connect assembly, and a locking rod. The top of the reactor body is provided with several terminals, and the quick-connect assembly is fixedly installed on the top of the terminals, forming a quick electrical interface module for the reactor.

[0008] In a preferred embodiment, the quick-connect assembly includes a terminal box, a positive pressure body, a locking element, and a main rotating ring. The top surface of the terminal box has a flange cover, the positive pressure body is mounted on the bottom surface of the flange cover, the main rotating ring is rotatably disposed at the bottom end of the positive pressure body, and the locking element is disposed within the terminal box and slides vertically under the guidance of a guide structure to form a one-way self-locking structure with the main rotating ring. Specifically, this structure rotates to drive the main rotating ring, completing the insertion and locking operations without disrupting the locking fit, thus improving assembly efficiency and safety.

[0009] In a preferred example, the contact surfaces of the locking member and the main rotating ring are provided with a ratchet structure with a right-angled triangular cross section. This structure allows the main rotating ring to disengage from the locking member when it rotates clockwise, but prevents it from rotating backward by self-locking the ratchet. Specifically, the ratchet structure, together with the spring assembly, forms a one-way meshing pair, which can prevent the main rotating ring from reversing and disengaging due to factors such as vibration, and ensure the long-term stability of the connection.

[0010] In a preferred example, the positive pressure body includes a pressure ring and a pressure spring below it. The main rotating ring is installed below the pressure spring, and its top surface is provided with a number of balls that form a support relationship with the bottom surface of the pressure ring. Specifically, this structure provides axial support for the rotation of the main rotating ring on the one hand, and reduces rotational resistance through the balls on the other hand, thereby improving the quick-connect response speed and assembly smoothness.

[0011] In a preferred example, a fixed guide seat is provided at the bottom of the pole box, and a top spring is installed on the top surface of the fixed guide seat to support the locking component. Several vertical guide rods are provided on the surface of the fixed guide seat, and a sliding groove is opened on the outer periphery of the locking component to adapt and cooperate with the guide rods. Specifically, the guide structure is used to limit the movement direction of the locking component, ensuring that it always accurately resets along the axial direction and stably engages with the main rotating ring, thereby improving the consistency of structural action and service life.

[0012] In a preferred example, the inner side of the main rotating ring is provided with several helical tooth grooves evenly distributed in a circumferential direction, and the outer surface of the locking shaft rod is provided with a helical ridge that matches its structure. During operation, the helical ridge engages with any helical tooth groove to drive the main rotating ring to rotate. Specifically, this design allows the locking shaft rod to be inserted in any direction and complete the locking action, greatly improving the flexibility and compatibility of on-site assembly and avoiding insertion failure due to directional errors.

[0013] In a preferred example, the flange cover, pressure ring, and locking element are provided with through holes at corresponding positions for the locking shaft to pass through, ensuring no interference during axial insertion. Specifically, the through hole structure provides a complete shaft insertion path, improves the mechanical coordination of the quick-connect mechanism, and prevents jamming or oblique insertion problems during shaft insertion.

[0014] In summary, through the above structural design, this utility model significantly improves the wiring efficiency, structural stability, and field adaptability of the series filter reactor, and has good engineering application value.

[0015] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting a main rotating ring, a locking component and a locking shaft rod with a swivel structure in the quick-connect assembly, a mechanical connection mechanism that can be quickly inserted, screwed in and locked is constructed, realizing the quick connection between the reactor end and the external line, and improving the convenience of installation and the efficiency of on-site assembly.

[0016] 2. In this utility model, the main rotating ring is locked in one direction by means of a ratchet structure. Combined with the elastic pre-tightening structure (compression spring and top spring), it can effectively prevent loosening or disengagement caused by vibration, reverse torque, etc., thereby improving connection stability and operational safety and extending equipment life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of a quick-connect component according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the fixed guide seat and locking component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the positive pressure body and main rotating ring structure according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the locking shaft rod and main rotating ring structure according to one embodiment of the present invention.

[0018] Figure label: 100. Reactor body; 110. Terminal block; 200. Quick-connect assembly; 210. Terminal box; 220. Flange cover; 230. Positive pressure body; 240. Locking element; 250. Main rotating ring; 211. Fixed guide seat; 212. Guide rod; 213. Top spring; 231. Pressure ring; 232. Compression spring; 241. Ratchet; 251. Rotary tooth groove; 300, locking shaft rod; 310, spiral ridge. Detailed Implementation

[0019] 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 specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0020] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0021] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a series filter reactor.

[0022] Combination Figures 1-5 As shown, the present invention provides a series filter reactor, including a reactor body 100, a quick-connect assembly 200, and a locking rod 300.

[0023] The reactor body 100 has several terminals 110 at its top for electrical connection with external lines. The quick-connect assembly 200 is fixedly installed on the top of the terminals 110, constituting the key structure of this invention for achieving quick mechanical connection and electrical connection.

[0024] The quick-connect assembly 200 includes a terminal box 210, a locking member 240, a positive pressure body 230, and a main rotating ring 250 rotatably mounted on the bottom surface of the positive pressure body 230, all disposed inside the terminal box 210. The terminal box 210 is a shell structure, with a flange cover 220 fixedly mounted on its top surface, and the positive pressure body 230 fixedly disposed below the flange cover 220.

[0025] Furthermore, the positive pressure body 230 includes a pressure ring 231 and a compression spring 232 fixedly installed at the bottom end of the pressure ring 231. The main rotating ring 250 is rotatably mounted on the bottom surface of the compression spring 232 via a ball bearing structure to realize the rotational movement of the main rotating ring 250 during quick assembly or disassembly.

[0026] A fixed guide seat 211 is fixedly installed on the bottom surface of the inner cavity of the pole box 210. The top surface of the fixed guide seat 211 is provided with a top spring 213 for supporting the locking member 240, thereby providing a vertical elastic thrust to the locking member 240. A plurality of guide rods 212 are provided on the outer peripheral surface of the fixed guide seat 211. The guide rods 212 are arranged perpendicular to the surface of the fixed guide seat 211 and are used to guide the locking member 240 to slide vertically. The outer periphery of the locking member 240 is provided with a sliding groove that matches the guide rods 212 to stabilize its guiding movement.

[0027] Specifically, the compression spring 232 and the top spring 213 are in a compressed state. Under the elastic push of the compression spring 232 and the top spring 213, the ratchet 241 on the opposite surface of the locking member 240 and the main rotating ring 250 are kept engaged to prevent the main rotating ring 250 from rotating in the opposite direction. The main rotating ring 250 can rotate freely in the forward direction during the insertion of the locking shaft rod 300, thereby achieving the screw-in engagement of the locking shaft rod 300 when the main rotating ring 250 rotates in the forward direction.

[0028] Both the top surface of the locking member 240 and the bottom surface of the main rotating ring 250 are provided with a plurality of ratchet teeth 241. Each ratchet tooth 241 has a right-angled triangular cross-section and is used to engage the locking member 240 and the main rotating ring 250 under the elastic force of the compression spring 232 and the top spring 213, thereby forming a unidirectional rotational locking structure. This structure allows the main rotating ring 250 to disengage during forward rotation, enabling rotational action; while during reverse rotation, the ratchet structure achieves self-locking to prevent loosening.

[0029] To achieve quick insertion and removal and mechanical actuation, the spiral groove 251 is adapted to the shape and structure of the spiral ridge 310, and several spiral grooves 251 are evenly distributed circumferentially on the inner side of the main rotating ring 250. The surface of the locking rod 300 is provided with a spiral ridge 310 adapted to the shape and structure of the spiral groove 251. By inserting the locking rod 300 into the quick-connect assembly 200, the spiral ridge 310 engages with a certain spiral groove 251, thereby driving the main rotating ring 250 to rotate to achieve assembly.

[0030] Specifically, multiple helical grooves 251 are provided on the inner side of the main rotating ring 250, so that the locking rod 300 can be inserted through the main rotating ring 250 in any direction, so that the helical ridge 310 and a certain helical groove 251 are engaged. During the insertion of the locking rod 300, the passive rotation of the main rotating ring 250 is achieved by the engagement of the helical ridge 310 and the helical groove 251.

[0031] In this embodiment, the flange cover 220, the pressure ring 231 and the locking member 240 are provided with through holes at corresponding positions so that the locking shaft rod 300 can be inserted axially and pass through the quick-connect assembly 200 to achieve screw-in locking.

[0032] Furthermore, to ensure smooth rotation of the main rotating ring 250, a number of balls are provided on its top surface. These balls abut against the bottom surface of the pressure ring 231, serving to provide axial support and reduce friction.

[0033] In summary, the series filter reactor described in this utility model, through the coordinated operation of the quick-connect component 200, locking component 240, main rotating ring 250, spiral tooth groove 251 and locking shaft rod 300, achieves both rapid wiring and installation and ensures the reliability of mechanical locking and operational safety. It is suitable for power installation scenarios with high requirements for electrical connection efficiency and mechanical stability.

[0034] Working principle and usage process of this utility model: The series filter reactor of this invention achieves rapid connection and locking between the reactor and the external system by introducing a quick-connect component 200 and a locking rod 300, thereby simplifying the installation operation and improving the mechanical connection stability and electrical reliability.

[0035] Specifically: A ratchet 241 is provided between the locking member 240 and the main rotating ring 250. When rotating in the forward direction, the ratchet 241 can be elastically disengaged to allow the main rotating ring 250 to rotate freely. When rotating in the reverse direction, the ratchet 241 structure will automatically engage to form a self-locking mechanism, thereby preventing accidental rotation. When the locking rod 300 is inserted, the spiral edge 310 on its surface aligns with the spiral tooth groove 251 on the inner wall of the main rotating ring 250, and drives the main rotating ring 250 to rotate, thereby pushing the structure to achieve the locking action. Compression spring 232 and top spring 213 provide continuous elastic preload to ensure that the locking element and the main rotating ring 250 always maintain good contact engagement to prevent loosening or displacement; The entire device effectively achieves functions such as rapid connection between the reactor and external electrical connection terminals, anti-loosening and anti-reverse rotation, and repeated disassembly and assembly through the cooperation of mechanical self-locking, guide sliding and rotary drive mechanisms.

[0036] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A series filter reactor, characterized in that, include: The reactor body (100), quick-connect assembly (200), and locking rod (300) are provided. The top of the reactor body (100) is provided with several terminals (110), and the quick-connect assembly (200) is fixedly installed on the top of the terminals (110). The quick-connect assembly (200) includes a terminal box (210) and a locking member (240) located inside the terminal box (210). The locking member (240) and a main rotating ring (250) rotatably installed on the bottom surface of the positive pressure body (230) are provided. A flange cover (220) is fixedly installed on the top surface of the terminal box (210). The positive pressure body (230) is fixed to the bottom surface of the flange cover (220). The positive pressure body (230) includes a pressure ring (231) and a ring fixed to the pressure ring (231). The compression spring (232) at the bottom end, the main rotating ring (250) is rotatably mounted on the bottom surface of the compression spring (232), the bottom surface of the inner cavity of the pole box (210) is fixedly mounted with a fixed guide seat (211), the top surface of the fixed guide seat (211) is provided with a top spring (213) for supporting the locking member (240), and the surface of the fixed guide seat (211) is provided with a number of guide rods (212) for guiding the locking member (240) to rise and slide. The top surface of the locking member (240) and the bottom surface of the main rotating ring (250) are both provided with a number of ratchet teeth (241) for suppressing the reverse rotation of the main rotating ring (250). The inner side of the main rotating ring (250) is provided with a number of helical tooth grooves (251), and the surface of the locking shaft rod (300) is provided with a helical ridge (310).

2. The series filter reactor according to claim 1, characterized in that, The flange cover (220), pressure ring (231) and locking member (240) are all provided with through holes for the locking shaft rod (300) to pass through.

3. The series filter reactor according to claim 1, characterized in that, The spiral groove (251) is adapted to the shape and structure of the spiral ridge (310), and several spiral grooves (251) are evenly distributed in the circumferential direction on the inner side of the main rotating ring (250).

4. The series filter reactor according to claim 1, characterized in that, The top surface of the main rotating ring (250) is provided with balls for abutting against the bottom surface of the pressure ring (231) to support the rotation of the main rotating ring (250).

5. The series filter reactor according to claim 1, characterized in that, The compression spring (232) and top spring (213) are in a compressed state to maintain the contact between the top surface of the locking member (240) and the bottom surface of the main rotating ring (250). The ratchet teeth (241) on the opposite surfaces of the locking member (240) and the main rotating ring (250) mesh with each other, and the cross section of the ratchet teeth (241) is a right-angled triangle.

6. The series filter reactor according to claim 1, characterized in that, The guide rod (212) is arranged perpendicular to the surface of the fixed guide seat (211), and the outer periphery of the locking member (240) is provided with a sliding groove that matches the guide rod (212).

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