Insulation integrated inductance coil assembly structure

The integrated design of the inductor coil assembly structure solves the problems of complex magnetic ring inductor protection mechanisms and inconvenient temperature probe installation, achieving efficient protection and simplified production.

CN224266958UActive Publication Date: 2026-05-22FOSHAN LIANHAN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN LIANHAN ELECTRONIC TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

The existing protective mechanisms of magnetic ring inductors are complex and cannot effectively protect the surface of the magnetic ring inductor, and the installation of temperature probes is cumbersome.

Method used

The system adopts an integrated inductor coil assembly structure, including the coil body and the outer shell. The outer shell is integrally molded and wrapped with a heat-resistant insulation layer. It has a magnetic ring positioning cavity and a probe clamping groove inside. The connection stability is improved by raised ribs and adhesive layer. The installation position of the temperature sensing module is designed.

Benefits of technology

It improves the protection performance and assembly efficiency of magnetic ring inductors, simplifies the production process, reduces costs, and facilitates the installation of temperature sensors.

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Abstract

The utility model belongs to the technical field of inductance structures, and particularly relates to an insulation integrated inductance coil assembly structure which comprises a coil body and an outer sleeve shell, the coil body comprises an annular magnetic core and a coil winding wound on the annular magnetic core, and the two electrifying ends of the coil winding are symmetrically arranged on the two sides of the bottom of the annular magnetic core. A magnetic ring positioning cavity is formed in the outer sleeve shell, a probe clamping groove communicated with the magnetic ring positioning cavity is formed in the outer side of the outer sleeve shell, a temperature sensing module is detachably installed in the probe clamping groove, a horizontal base plate is arranged at the bottom, corresponding to the magnetic ring positioning cavity, of the outer sleeve shell, and clamping grooves with outward openings are symmetrically formed in the left side and the right side of the horizontal base plate. According to the coil structure provided by the utility model, the protective shell and the base are integrated, the assembly production efficiency is high, the temperature sensor can be rapidly configured, and the coil structure has remarkable practical significance.
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Description

Technical Field

[0001] This utility model relates to the field of inductor structure technology, and more specifically, to an integrated inductor coil assembly structure. Background Technology

[0002] In many electronic devices, the circuits or devices themselves generate a certain amount of electromagnetic interference (EMI). This is especially true as electronic devices become increasingly miniaturized, with multiple electronic components packed tightly together, making EMI problems more likely. Excessive EMI generated by an electronic device can interfere with the normal operation of other surrounding electronic devices or cause mutual interference with other electronic devices. Inductors are frequently used in electronic devices; they are commonly used anti-interference components in electronic circuits, providing excellent shielding against high-frequency noise and serving purposes such as interference filtering and energy storage.

[0003] During the component installation process on the circuit board, the traditional method of protecting magnetic rings / inductors is to cut heat shrink tubing of appropriate length, put it on the outer surface of the magnetic ring / inductor, and then use a hot air gun or other heating methods to shrink it tightly to the surface to form a protective sleeve, which mainly serves the functions of protection and insulation.

[0004] Alternatively, there are structures that use the electromagnetic coil on the magnetic ring inductor in conjunction with a base plate and a partition. The assembly of the base plate and the magnetic ring body involves inserting the lead wires of the magnetic ring onto the base plate, fixing the base plate to the lower part of the magnetic ring body, and fixing the partition inside the magnetic ring body.

[0005] For example, in the patent document CN202221941310.X entitled "An Integrated Bending and Snap-on Magnetic Ring Inductor", the disclosed magnetic ring inductor structure includes a magnetic ring body, on which an integrated snap-on component is fitted. The integrated snap-on component includes a snap-on base plate and a snap-on partition plate. The snap-on partition plate is integrally connected to the snap-on base plate through a bending connecting strip. The snap-on partition plate and the snap-on base plate are perpendicular to each other through the bending of the bending connecting strip. The snap-on partition plate is fitted onto the inner wall of the non-winding portion of the magnetic ring body, and the snap-on base plate is fitted onto the outer wall of the non-winding portion of the magnetic ring body.

[0006] While the above solution achieves glue-free installation of the magnetic ring inductor protection mechanism through a snap-fit ​​component, the snap-fit ​​component design is relatively complex, and the snap-fit ​​partition cannot protect the surface of the magnetic ring inductor. When surface protection is required, heat shrink tubing is still necessary. Furthermore, if a temperature probe needs to be installed, it is generally fixed using a clamping plate with screws or adhesive, which is cumbersome. Utility Model Content

[0007] To integrate the external and bottom protective mechanisms of the magnetic ring inductor, improve assembly production efficiency, and facilitate the installation of temperature probes on the magnetic ring inductor, an integrated inductor coil assembly structure with insulation is provided.

[0008] An integrated insulated inductor coil assembly structure includes a coil body and an outer casing. The coil body includes a toroidal magnetic core and a coil winding wound on the toroidal magnetic core. The two energized ends of the coil winding are symmetrically arranged on both sides of the bottom of the toroidal magnetic core. A magnetic ring positioning cavity is provided in the outer casing, and a probe clamping groove communicating with the magnetic ring positioning cavity is provided on the outside of the outer casing. A temperature sensing module is detachably installed in the probe clamping groove. A horizontal pad is provided at the bottom of the outer casing corresponding to the magnetic ring positioning cavity, and outward-facing locking grooves are symmetrically provided on the left and right sides of the horizontal pad.

[0009] Furthermore, multiple raised ribs are provided on the inner side of the magnetic ring positioning cavity and above the horizontal pad, and the raised ribs are parallel to each other.

[0010] Furthermore, the magnetic ring positioning cavity, probe clamping groove, horizontal pad, and raised ribs are integrally formed on the outer shell, which is covered with a heat-resistant insulating layer.

[0011] Furthermore, the gap between the raised ridge and the coil body is filled with an adhesive layer.

[0012] Furthermore, the outer side of the coil winding between the two energized ends is covered with an enameled layer.

[0013] Furthermore, the width of the outer casing is greater than the width of the coil body.

[0014] Furthermore, the width of the lower side of the outer shell gradually decreases towards the horizontal pad.

[0015] The advantages of this utility model are:

[0016] 1. The high degree of integration of the outer casing components makes installation convenient and can improve the protection performance of the components and the assembly efficiency.

[0017] 2. A mounting position for the temperature sensor is designed on the housing components, making it convenient to configure the temperature sensor as needed.

[0018] 3. The overall structure is simple and aesthetically pleasing, with low production costs, which facilitates widespread use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 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.

[0020] Figure 1 A schematic diagram of an integrated insulated inductor coil assembly structure;

[0021] Figure 2 A front view of the integrated insulated inductor coil assembly structure;

[0022] Figure 3 A bottom view of the assembled structure of an integrated insulated inductor coil;

[0023] Figure 4 An exploded view of the assembled structure of an integrated insulated inductor coil.

[0024] Figure 5 This is a schematic diagram of the intermediate assembly state of the coil body and the outer casing.

[0025] Attached image labels:

[0026] 1. Coil body; 101. Toroidal core; 102. Coil winding; 103. Power-on terminal; 2. Outer shell; 201. Magnetic ring positioning cavity; 202. Horizontal pad; 3. Probe clamping groove; 4. Temperature sensing module; 5. Locking groove; 6. Raised ribs; 7. Enamel layer. Detailed Implementation

[0027] To integrate the external and bottom protective mechanisms of the magnetic ring inductor, improve assembly production efficiency, and facilitate the installation of temperature probes on the magnetic ring inductor, an integrated inductor coil assembly structure with insulation is provided.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0031] like Figures 1 to 5 As shown, this embodiment provides an integrated insulated inductor coil assembly structure, including a coil body 1 and an outer shell 2. The coil body 1 includes a ring magnetic core 101 and a coil winding 102 wound on the ring magnetic core 101. The two energized ends 103 of the coil winding 102 are symmetrically arranged on both sides of the bottom of the ring magnetic core 101. A magnetic ring positioning cavity 201 is provided in the outer shell 2. A probe clamping groove 3 communicating with the magnetic ring positioning cavity 201 is provided on the outside of the outer shell 2. A temperature sensing module 4 is detachably installed in the probe clamping groove 3. A horizontal pad 202 is provided at the bottom of the outer shell 2 corresponding to the magnetic ring positioning cavity 201. A locking groove 5 with an outward opening is symmetrically provided on the left and right sides of the horizontal pad 202.

[0032] During equipment assembly, align the energized end 103 at the bottom of the coil body 1 with the locking groove 5, and then insert the coil body 1 into the magnetic ring positioning cavity 201. This completes the assembly between the outer shell 2 and the coil body 1, making the operation simple and quick. Since the probe clamping groove 3 is connected to the magnetic ring positioning cavity 201, when a temperature probe is needed, simply insert the temperature sensing module 4 into the probe clamping groove 3, ensuring that the temperature sensing module 4 fits snugly against the outer side of the coil body 1. It is worth noting that the temperature sensing module 4 can use a commonly used temperature control switch element (such as KSD9700), and the inner cavity size of the probe clamping groove 3 can also be set to correspond to the size of the temperature control switch element, ensuring that the temperature control switch element and the coil body 1 can fit together fully and be clamped securely.

[0033] Multiple raised ribs 6 are provided on the inner side of the magnetic ring positioning cavity 201 and above the horizontal pad 202, and the raised ribs 6 are parallel to each other. The raised ribs 6 can fill the gap between the outer side of the coil body 1 and the inner wall of the magnetic ring positioning cavity 201, improve the locking tightness, and prevent the coil body 1 from loosening.

[0034] The magnetic ring positioning cavity 201, probe clamping groove 3, horizontal pad 202, and raised rib 6 are integrally formed on the outer shell 2, which is covered with a heat-resistant insulating layer. In this embodiment, the outer shell structure is integrally injection molded from heat-resistant insulating materials such as bakelite, which is easy to manufacture and has high structural strength.

[0035] The gap between the raised rib 6 and the coil body 1 is filled with an adhesive layer. Besides using the inner wall of the magnetic ring positioning cavity 201 to engage the raised rib 6 and secure the coil body 1, the adhesive layer further enhances the connection stability between the coil body 1 and the outer shell 2. In this embodiment, the adhesive material can be epoxy resin, which is renowned for its excellent bonding strength and durability, especially its resistance to high temperatures, strong vibrations, and chemical corrosion.

[0036] The outer side of the coil winding 102 between the two energized ends 103 is covered with an enameled layer 7. The coil winding 102 with the enameled layer 7 is the enameled wire commonly used in the art, and the conductors of the two energized ends 103 are directly exposed, which is convenient for soldering to the circuit board.

[0037] The width of the outer casing 2 is greater than the width of the coil body 1. The coil body 1 is wrapped inside the outer casing 2 and does not protrude from the outer casing 2, providing good protection.

[0038] The width of the lower side of the outer casing 2 gradually decreases towards the horizontal pad 202. The narrower bottom of the outer casing 2 provides a clearance function, allowing the energized ends 103 at both ends of the bottom of the coil body 1 to be smoothly inserted into the locking grooves 5 for fixation when the coil body 1 is fitted into the outer casing 2.

[0039] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. An integrated insulated inductor coil assembly structure, characterized in that, The device includes a coil body and an outer casing. The coil body includes a ring-shaped magnetic core and a coil winding wound around the ring-shaped magnetic core. The two energized ends of the coil winding are symmetrically arranged on both sides of the bottom of the ring-shaped magnetic core. A magnetic ring positioning cavity is provided in the outer casing. A probe clamping groove communicating with the magnetic ring positioning cavity is provided on the outside of the outer casing. A temperature sensing module is detachably installed in the probe clamping groove. A horizontal pad is provided at the bottom of the outer casing corresponding to the magnetic ring positioning cavity. A locking groove with an outward opening is symmetrically provided on the left and right sides of the horizontal pad.

2. The integrated insulated inductor coil assembly structure according to claim 1, characterized in that, Multiple raised ribs are provided on the inner side of the magnetic ring positioning cavity and above the horizontal pad, and the raised ribs are parallel to each other.

3. The integrated insulated inductor coil assembly structure according to claim 2, characterized in that, The magnetic ring positioning cavity, probe clamping groove, horizontal pad, and raised ribs are integrally formed on the outer shell, which is wrapped with a heat-resistant insulating layer.

4. The integrated insulated inductor coil assembly structure according to claim 2, characterized in that, The gap between the raised ribs and the coil body is filled with an adhesive layer.

5. The integrated insulated inductor coil assembly structure according to claim 1, characterized in that, The outer side of the coil winding between the two energized ends is covered with an enameled layer.

6. The integrated insulated inductor coil assembly structure according to claim 1, characterized in that, The width of the outer casing is greater than the width of the coil body.

7. The integrated insulated inductor coil assembly structure according to claim 6, characterized in that, The width of the lower side of the outer shell gradually decreases towards the horizontal pad.