A vibration-controlled constant-current inductor
By vertically setting the magnetic core, combined with the bidirectional snap-fit structure of the card block and card strip, and the insertion and locking of the sliding rod linkage buckle, modular assembly efficiency is achieved. At the same time, the combination design of elastic sheet and metal conductive strip significantly improves the vibration resistance and heat dissipation capacity of the inductor, solving the problems of current stabilization accuracy and lifespan of traditional inductors in vibration environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU BORTALA ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional inductors are prone to core displacement or poor contact under vibration, resulting in heat accumulation, which affects current regulation accuracy and service life. They also have low installation efficiency and high maintenance costs.
The design employs a vertical magnetic core, combined with bidirectional locking of the card block and card strip, and insertion and locking of the sliding rod linkage buckle. The embedded combination of elastic sheet and metal conductive strip enables adaptive pressing contact of the coil pins. With the heat dissipation structure designed with a vertical air duct, modular rapid assembly and efficient heat dissipation are achieved.
It achieves core stability and heat dissipation under vibration, significantly improves electrical connection stability and heat dissipation performance, and reduces maintenance costs.
Smart Images
Figure CN224400185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inductor technology, specifically to a vibration-controlled current-stabilizing inductor. Background Technology
[0002] In the field of power electronics, inductors, as key energy storage components in circuits, directly affect the reliability of power systems due to their performance stability. Traditional inductors often use welding or screw fixing for their cores, which can easily lead to core displacement or poor contact due to long-term vibration, causing inductance fluctuations and affecting current regulation accuracy. The enclosed core layout leads to heat accumulation, especially in high-frequency, high-current scenarios, where the temperature rise of the coil and core significantly increases copper losses and core losses, reducing device lifespan. Existing heat dissipation solutions mostly rely on single heat dissipation holes or metal casing conduction, which is insufficient to meet the high power density requirements of compact devices. The cores and coils of existing inductors require complex welding or nesting processes for assembly, resulting in low installation efficiency and inconvenient disassembly and maintenance, increasing subsequent maintenance costs. For example, some inductors with plug-in structures lack elastic limiting devices, making conductive contacts prone to wear during insertion and removal. The fixed connection between the coil pins and external circuits often relies on crimping or welding, which can easily lead to increased contact resistance or even open circuits due to long-term vibration, posing safety hazards, especially in high-reliability scenarios such as aerospace and new energy vehicles.
[0003] Therefore, it is necessary to propose a vibration-controlled current-regulating inductor. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a vibration-controlled current-regulating inductor that possesses advantages such as vibration resistance, high-efficiency heat dissipation, and quick assembly / disassembly, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a vibration-controlled current-regulating inductor, including a mounting box and a magnetic core. The magnetic core is located inside the mounting box and is vertically arranged. A locking block is fixedly connected to the bottom of the inner walls on opposite sides of the mounting box. A locking strip is fixedly connected to the bottom of the inner walls on the other opposite sides of the mounting box. A sliding rod is slidably inserted into the side wall surface where the locking strip is located on the mounting box. A handle is fixedly connected to one end of the sliding rod, and a buckle is fixedly connected to the other end of the sliding rod. The buckle engages with the bottom edge of the magnetic core. A coil is wound around the surface of the magnetic core. A mounting wing is fixedly connected to the bottom edge of the mounting box, and a mounting hole is formed on the surface of the mounting wing.
[0006] Preferably, a spring is movably sleeved on the surface of the slide rod, one end of the spring is in contact with the side of the buckle block, and the other end of the spring is in contact with the inner wall of the mounting box. The top of the buckle block is set with an arc angle, and the bottom of the buckle block is provided with a bottom sliding groove, which is slidably engaged with the locking strip.
[0007] Preferably, a slot is provided on the edge of the bottom end of the magnetic core, and the slot engages with the card block.
[0008] Preferably, a groove is provided at the top of the side wall where the card block is located on the mounting box, and an elastic sheet is fixedly connected to the bottom of the groove. An inlay groove is provided on the surface of the side wall of the mounting box, and a metal conductive strip is inlaid inside the inlay groove. The top of the metal conductive strip is fixedly connected to the elastic sheet.
[0009] Preferably, the lead of the coil is located on the upper surface of the elastic sheet, a clamping block is provided inside the groove, the clamping block is fixedly connected to the top of the mounting box by bolts, and the bottom end of the clamping block abuts against the lead of the coil.
[0010] Preferably, heat dissipation holes are provided on both sides of the mounting box where the card strip is located.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This vibration-controlled current-stabilized inductor features a magnetic core standing upright within the mounting box. The bidirectional locking mechanism of the locking blocks and strips, along with the insertion and locking of the sliding rod linkage, enables modular and rapid assembly. Furthermore, the combination of spring preload and arc-groove sliding action creates a double buffer, effectively suppressing vibration displacement and reducing mechanical wear. The embedded limiting mechanism of the slots and blocks, combined with the vertical magnetic core layout, optimizes magnetic field uniformity and reduces inductance fluctuations. The inlaid combination of elastic sheets and metal conductive strips enables adaptive clamping contact of the coil pins, further enhanced by secondary locking with clamping bolts, significantly improving electrical connection stability under high-frequency vibration. The heat dissipation holes and the natural convection design of the vertical magnetic core structure form a longitudinal airflow channel, balancing temperature rise threshold and dustproof performance. The recessed encapsulation protects the elastic elements, ultimately achieving long-term reliability goals of vibration resistance and thermal conductivity within a compact space. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;
[0015] Figure 2 This is a cross-sectional view of the mounting box of this utility model.
[0016] Figure 3 This is a schematic diagram of the slide bar structure of this utility model;
[0017] Figure 4 This is a longitudinal section diagram of the mounting box of this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 100. Mounting box; 101. Heat dissipation hole; 102. Mounting wing; 103. Mounting hole; 104. Groove; 105. Insertion slot; 106. Locking block; 107. Locking strip;
[0020] 200. Magnetic core; 201. Coil; 202. Slot;
[0021] 300. Elastic sheet; 301. Metal conductive strip; 302. Clamping block;
[0022] 400. Slide bar; 401. Handle; 402. Buckle block; 403. Bottom slide groove; 404. Spring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figures 1-4 As shown, a vibration-controlled current-regulating inductor includes a mounting box 100 and a magnetic core 200. The magnetic core 200 is located inside the mounting box 100 and is vertically arranged. A locking block 106 is fixedly connected to the bottom of the inner walls on opposite sides of the mounting box 100. A locking strip 107 is fixedly connected to the bottom of the other two opposite inner walls of the mounting box 100. A sliding rod 400 is slidably inserted into the side wall surface where the locking strip 107 is located on the mounting box 100. A handle 401 is fixedly connected to one end of the sliding rod 400, and a latch 402 is fixedly connected to the other end of the sliding rod 400. The latch 402 engages with the bottom edge of the magnetic core 200. The surface of the magnetic core 200 is wrapped with... The mounting box 100, with a coil 201 wound around it, has a mounting wing 102 fixedly connected to the bottom edge. The mounting wing 102 has mounting holes 103 on its surface. By vertically setting the magnetic core 200 inside the mounting box 100 and cooperating with the bidirectional snap-fit structure of the snap-fit block 106 and the snap-fit strip 107, the magnetic core 200 can be quickly positioned and securely installed. The plug-in design of the sliding rod 400 and the snap-fit block 402, combined with the mounting holes 103 of the mounting wing 102, significantly improves the modular assembly efficiency of the inductor. At the same time, the snap-fit constraint between the snap-fit block 402 and the bottom of the magnetic core 200 effectively suppresses the displacement of the magnetic core 200 under vibration environment and ensures the stability of the current stabilization performance.
[0025] In a further preferred embodiment, a spring 404 is movably sleeved on the surface of the slide rod 400. One end of the spring 404 is in contact with the side of the buckle 402, and the other end of the spring 404 is in contact with the inner wall of the mounting box 100. The top of the buckle 402 is set with an arc angle, and the bottom end of the buckle 402 is provided with a bottom sliding groove 403. The bottom sliding groove 403 is slidably engaged with the locking strip 107. The spring 404 sleeved on the surface of the slide rod 400 provides a preload force, so that the buckle 402 and the magnetic core 200 are elastically clamped together. The arc angle design of the bottom end of the buckle 402 and the bottom sliding groove 403 of the locking strip 107 are slidably engaged, which reduces insertion and removal wear and enhances impact resistance. The buffering effect of the spring 404 can absorb high-frequency vibration energy, reduce mechanical fatigue of the magnetic core 200 and coil 201, and extend the service life of the inductor.
[0026] In a further preferred embodiment, a slot 202 is provided on the edge of the bottom end of the magnetic core 200. The slot 202 engages with the locking block 106. The embedded engagement of the slot 202 at the bottom end of the magnetic core 200 with the locking block 106 forms a double axial limiting structure. Compared with the single-point fixing method, this improves the resistance to lateral displacement. Combined with the vertical magnetic core 200 layout, it optimizes the uniformity of magnetic field distribution, reduces the inductance fluctuation of the magnetic core 200 caused by vibration, and ensures the current stabilization accuracy.
[0027] In a further preferred embodiment, a groove 104 is formed at the top of the side wall where the locking block 106 is located on the mounting box 100. An elastic sheet 300 is fixedly connected to the bottom of the groove 104. An inlay groove 105 is formed on the surface of the side wall of the mounting box 100. A metal conductive strip 301 is inlaid inside the inlay groove 105. The top of the metal conductive strip 301 is fixedly connected to the elastic sheet 300. The combination design of the elastic sheet 300 in the groove 104 and the metal conductive strip 301 in the inlay groove 105 realizes the adaptive pressing contact of the lead pin of the coil 201: the elastic sheet 300 compensates for the small displacement of the wire through deformation, and the metal conductive strip 301 reduces the contact resistance and improves the thermal conductivity; the encapsulation structure of the groove 104 prevents the elastic element from oxidizing and failing, and ensures the long-term electrical connection reliability.
[0028] In a further preferred embodiment, the lead of the coil 201 is located on the upper surface of the elastic sheet 300. A clamping block 302 is provided inside the groove 104. The clamping block 302 is fixedly connected to the top of the mounting box 100 by bolts. The bottom end of the clamping block 302 abuts against the lead of the coil 201. The clamping block 302 is fixed to the top of the mounting box 100 by bolts, forming a secondary mechanical lock on the lead of the coil 201, eliminating the risk of creep relaxation caused by long-term pressure on the elastic sheet 300. The modular bolt design allows for lead maintenance without disassembling the outer shell. Combined with the conductive buffer layer of the elastic sheet 300, it significantly improves the contact stability under high-frequency vibration scenarios.
[0029] In a further preferred embodiment, heat dissipation holes 101 are provided on both sides of the side wall where the mounting strip 107 is located on the mounting box 100. The heat dissipation holes 101 on the side wall where the mounting strip 107 is located form a longitudinal air channel. By utilizing the natural convection effect generated by the vertical layout of the magnetic core 200, the heat dissipation of the coil 201 and the magnetic core 200 is accelerated. The double-sided symmetrical heat dissipation hole 101 design balances the internal and external air pressure difference, prevents dust accumulation, and increases the temperature rise threshold, ensuring that the inductor maintains stable electrical parameters under full load conditions.
[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A vibration-controlled current-regulating inductor, comprising a mounting box (100) and a magnetic core (200), characterized in that: The magnetic core (200) is located inside the mounting box (100). The magnetic core (200) is vertically arranged. The bottom of the inner walls on both sides of the mounting box (100) is fixedly connected to a locking block (106). The bottom of the inner walls on the other two sides of the mounting box (100) is fixedly connected to a locking strip (107). A sliding rod (400) is slidably inserted into the side wall surface where the locking strip (107) is located on the mounting box (100). One end of the sliding rod (400) is fixedly connected to a handle (401). The other end of the sliding rod (400) is fixedly connected to a buckle (402). The buckle (402) is engaged with the bottom edge of the magnetic core (200). A coil (201) is wound around the surface of the magnetic core (200). A mounting wing (102) is fixedly connected to the bottom edge of the mounting box (100). The surface of the mounting wing (102) is provided with a mounting hole (103).
2. The vibration-controlled current-regulating inductor according to claim 1, characterized in that: A spring (404) is movably sleeved on the surface of the slide rod (400). One end of the spring (404) is in contact with the side of the buckle block (402), and the other end of the spring (404) is in contact with the inner wall of the mounting box (100). The top of the buckle block (402) is set with an arc angle, and the bottom end of the buckle block (402) is provided with a bottom sliding groove (403). The bottom sliding groove (403) is slidably engaged with the locking strip (107).
3. The vibration-controlled current-regulating inductor according to claim 1, characterized in that: The bottom edge of the magnetic core (200) is provided with a slot (202), which engages with the card block (106).
4. The vibration-controlled current-regulating inductor according to claim 1, characterized in that: The mounting box (100) has a groove (104) at the top of the side wall where the card block (106) is located. An elastic sheet (300) is fixedly connected to the bottom of the groove (104). The mounting box (100) has an inlay groove (105) on the side wall surface. A metal conductive strip (301) is inlaid inside the inlay groove (105). The top of the metal conductive strip (301) is fixedly connected to the elastic sheet (300).
5. A vibration-controlled current-regulating inductor according to claim 4, characterized in that: The lead of the coil (201) is located on the upper surface of the elastic sheet (300). A clamping block (302) is provided inside the groove (104). The clamping block (302) is fixedly connected to the top of the mounting box (100) by bolts. The bottom end of the clamping block (302) abuts against the lead of the coil (201).
6. The vibration-controlled current-regulating inductor according to claim 1, characterized in that: Heat dissipation holes (101) are provided on both sides of the mounting box (100) where the card strip (107) is located.