Rotary snap-on common mode inductor

Abstract

This utility model relates to the technical field of inductors and discloses a rotary snap-fit ​​common-mode inductor, including a lifting support plate assembly. The inductor assembly is mounted at its middle limit, and an adjustable protective plate assembly is mounted at its top limit. By installing the adjustable protective plate assembly, this utility model allows for both protection of the inductor and maintenance / replacement of internal components, making the device more convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of inductors, specifically a rotary snap-fit ​​common mode inductor. Background Technology

[0002] With the widespread adoption of electronic devices and rapid technological advancements, electromagnetic compatibility (EMC) issues have become increasingly prominent. Common-mode inductors, as key components for suppressing common-mode current interference, play a crucial role in various circuits. Through their unique structural design, they present high impedance to high-frequency common-mode noise, effectively attenuating interference signals. However, traditional common-mode inductors exhibit numerous drawbacks during installation and debugging. In the installation phase, conventional methods are cumbersome, requiring soldering or complex fixing procedures, which not only consumes time and manpower but also makes later maintenance and replacement inconvenient. Furthermore, problems with solder joints can lead to significant repair difficulties. During the debugging phase, traditional common-mode inductors often struggle to flexibly adjust their inductance values, making it difficult to accurately match optimal parameters to complex and ever-changing circuit requirements, resulting in suboptimal suppression of common-mode interference. To effectively solve the installation and debugging problems of traditional common mode inductors and improve their applicability and stability in different circuit environments, the rotary snap-on common mode inductor has emerged. It is expected to optimize the performance of common mode inductors by means of rotatable adjustment of inductance value and convenient snap-on installation, so as to meet the growing demand of electronic devices for efficient, flexible and reliable EMC solutions.

[0003] Application number CN201921521164.3 discloses a coil-type inductor, belonging to the field of inductor technology. It includes an inductor body and a support base. A magnetic core column penetrates the middle of the outer surface of the inductor body. Slider blocks are fixed at each of the four corners of the inductor body. A support base is installed at the bottom of the inductor body. When the inductor needs to be installed, the inductor body is slidably connected to a slide rail via the sliders, allowing the operator to insert the sliders into the slide rails, thereby mounting the inductor on the support base. Furthermore, because the contact plate is located... Below one side of the slide rail, the operator can rotate the rotating rod via the fastening knob to bring the contact plate closer to the outside of the slide rail, thereby fixing the slider inside the slide rail and thus securing the inductor. When it is necessary to remove the inductor, the operator only needs to rotate the rotating rod via the fastening knob to move the contact plate away from the outside of the slide rail, and then push the inductor out of the slide rail. However, there is a shortcoming: the device does not provide external protection during use, which makes it prone to damage or breakage during use. Utility Model Content

[0004] The purpose of this invention is to provide a rotary snap-fit ​​common mode inductor, which solves the problem that the device is not protected on the outside during use, making it prone to damage and breakage.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a rotary snap-fit ​​common mode inductor, including a lifting support plate assembly, characterized in that: an inductor assembly is installed at the middle limit of the lifting support plate assembly, and an adjustable protective plate assembly is installed at the top limit of the lifting support plate assembly.

[0007] The adjustable protective plate assembly includes a protective cover, a limiting slot is provided on one side of the protective cover, and limiting slots are provided on both sides of the bottom of one side of the protective cover. At the same time, limiting slide rails are installed on the inner walls of both sides of the protective cover, and a limiting base plate is installed at the bottom of the limiting slide rails.

[0008] Furthermore, the lifting support plate assembly includes a lifting plate one, a lifting plate two is installed at the bottom of the lifting plate one via a limiting lifting plate, and a shielding plate is installed at the top of the lifting plate one. A limiting locking rod is installed on one side of the lifting plate two, and the limiting lifting plate is limited and braked by the limiting locking rod.

[0009] Furthermore, limit grooves are provided on the outer walls of both sides of the lifting plate one and the lifting plate two.

[0010] Furthermore, reset springs are installed on the top of both sides of the limiting base plate.

[0011] Furthermore, the inductor assembly includes a coil, a magnetic core is installed at the middle limit of the coil, and leads are installed at both ends of the coil. The magnetic core is installed at the top middle of the lifting plate two through a frame.

[0012] Furthermore, the protective cover includes an alloy material layer, a glass fiber reinforced plastic layer is mounted on the outside of the alloy material layer, and a polystyrene layer is mounted on the outside of the glass fiber reinforced plastic layer.

[0013] This utility model has the following beneficial effects:

[0014] (1) The present invention provides a rotary snap-fit ​​common mode inductor. By installing an adjustable protective plate assembly on the device, the device can protect the inductor while performing maintenance and replacement of internal parts, making the device more convenient to use.

[0015] (2) The present invention provides a rotary snap-fit ​​common mode inductor. By installing a lifting support plate assembly on the device, the support height can be adjusted for different usage scenarios when using the device, making the device more flexible during use.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of a rotary snap-fit ​​common mode inductor according to this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a rotary snap-fit ​​common mode inductor adjustment and protection plate assembly according to the present invention;

[0020] Figure 3 This is a cross-sectional view of a rotary snap-fit ​​common mode inductor adjustment and protection plate assembly according to the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of a rotary snap-fit ​​common mode inductor according to this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Lifting support plate assembly; 2. Adjustable protective plate assembly; 3. Inductor assembly; 101. Lifting plate one; 102. Lifting plate two; 103. Limiting locking rod; 104. Shielding plate; 201. Protective cover; 202. Limiting slot; 203. Limiting slide rail; 204. Return spring; 205. Limiting base plate; 301. Coil; 302. Magnetic core; 303. Lead wire; 1011. Limiting slide groove; 2011. Alloy material layer; 2012. Glass fiber reinforced plastic; 2013. Polystyrene. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 As shown, this utility model is a rotary snap-fit ​​common mode inductor, including a lifting support plate assembly 1, characterized in that: an inductor assembly 3 is installed at the middle limit of the lifting support plate assembly 1, and an adjustable protective plate assembly 2 is installed at the top limit of the lifting support plate assembly 1.

[0026] The adjustable protective plate assembly 2 includes a protective cover 201. A limiting slot 202 is provided on one side of the protective cover 201, and limiting slots 202 are provided on both sides of the bottom of one side of the protective cover 201. At the same time, limiting slide rails 203 are installed on the inner walls of both sides of the protective cover 201, and a limiting base plate 205 is installed at the bottom of the limiting slide rails 203.

[0027] By installing the adjustable protective plate assembly 2 on the device, the inductor can be protected by the adjustable protective plate assembly 2 while the internal parts can be inspected and replaced, making the device more convenient to use.

[0028] The lifting support plate assembly 1 includes a lifting plate 101, a lifting plate 2 102 is installed at the bottom of the lifting plate 101 via a limiting lifting plate, and a shielding plate 104 is installed at the top of the lifting plate 101. A limiting locking rod 103 is installed on one side of the lifting plate 2 102, and the limiting lifting plate is limited and braked by the limiting locking rod 103.

[0029] Limiting grooves 1011 are provided on the outer walls of both sides of the lifting plate 101 and the lifting plate 2 102. The design of the lifting support plate assembly 1 provides the functions of height adjustment and stable support for the inductor assembly 3. The lifting plate 101 and the lifting plate 2 102 are connected by a limiting lifting plate. When it is necessary to adjust the height of the inductor assembly 3, the limiting locking rod 103 can be released, allowing the lifting plate 2 102 to slide up and down along the limiting grooves 1011 on the lifting plate 101. After adjusting to a suitable height, the limiting locking rod 103 is used to limit and brake, fixing the position of the lifting plate 2 102, thereby fixing the height of the inductor assembly 3 to adapt to different installation environments and circuit layout requirements. At the same time, the shielding plate 104 on the top of the lifting plate 101 can reduce the influence of external electromagnetic interference on the inductor assembly 3 and improve its working stability.

[0030] The top of both sides of the limiting base plate 205 is equipped with return springs 204, and the adjusting protective plate assembly 2 provides protection and adjustment functions for the inductor assembly 3. The limiting slots 202 on the protective cover 201 are used for snap-fit ​​engagement with other components to realize the installation and fixation of the protective cover 201. The limiting slide rails 203 on both inner walls cooperate with the limiting base plate 205, and the return springs 204 on both top sides of the limiting base plate 205 provide elastic support. When the inductor assembly 3 needs to be installed or maintained, an external force can be applied to the protective cover 201 to overcome the elastic force of the return springs 204, so that the protective cover 201 moves along the limiting slide rails 203 to expose the inductor assembly 3.

[0031] The inductor assembly 3 includes a coil 301, with a magnetic core 302 mounted at the center of the coil 301. Leads 303 are attached to both ends of the coil 301. The magnetic core 302 is mounted on the top center of the lifting plate 102 via a frame. In the inductor assembly 3, the coil 301 is wound around the magnetic core 302. When common-mode interference signals exist in the circuit, common-mode current flows through the coil 301, generating a magnetic field in the magnetic core 302. Due to the high permeability of the magnetic core 302, it forms a large inductive reactance to the common-mode current, thereby suppressing the common-mode interference signal and achieving a filtering function. The leads 303 at both ends of the coil 301 are used to connect the inductor assembly 3 to the circuit, realizing signal transmission and interference suppression.

[0032] The protective cover 201 includes an alloy material layer 2011, a glass fiber reinforced plastic 2012 is installed on the outside of the alloy material layer 2011, and a polystyrene 2013 is installed on the outside of the glass fiber reinforced plastic 2012.

[0033] The rotary snap-fit ​​common-mode inductor primarily suppresses common-mode interference signals through the inductor assembly 3. Simultaneously, the structural design of the lifting support plate assembly 1 and the adjustable protective plate assembly 2 ensures stable operation of the inductor assembly 3 and provides protection and adjustment functions. In the inductor assembly 3, the coil 301 is wound on the magnetic core 302. When common-mode interference signals exist in the circuit, the common-mode current flows through the coil 301, generating a magnetic field in the magnetic core 302. Due to the high permeability of the magnetic core 302, it forms a large inductive reactance to the common-mode current, thereby suppressing the common-mode interference signal and achieving a filtering function. The leads 303 at both ends of the coil 301 are used to connect the inductor assembly 3 to the circuit, realizing signal transmission and interference suppression. The design of the lifting support plate assembly 1 provides height adjustment and stable support for the inductor assembly 3. Lifting plate 101 and lifting plate 202 are connected by a limiting lifting plate. When the height of the inductor assembly 3 needs to be adjusted, the limiting locking rod 103 can be released, allowing lifting plate 202 to slide up and down along the limiting slide groove 1011 on lifting plate 101. After adjusting to a suitable height, the limiting locking rod 103 is used to limit and brake the lifting plate 202, thereby fixing the height of the inductor assembly 3 to adapt to different installation environments and circuit layout requirements. Simultaneously, the shielding plate 104 on the top of lifting plate 101 can reduce the impact of external electromagnetic interference on the inductor assembly 3, improving its operational stability. The adjustable protective plate assembly 2 provides protection and adjustment functions for the inductor assembly 3. The limiting slot 202 on the protective cover 201 is used for snap-fit ​​engagement with other components to achieve the installation and fixation of the protective cover 201. The limiting slide rails 203 on both inner walls cooperate with the limiting base plate 205. The return springs 204 on the top of both sides of the limiting base plate 205 provide elastic support. When the inductor assembly 3 needs to be installed or maintained, an external force can be applied to the protective cover 201 to overcome the elastic force of the return spring 204, causing the protective cover 201 to move along the limiting slide rails 203 and expose the inductor assembly 3. After the operation is completed, the external force is released, and the return spring 204 pushes the limiting base plate 205 to reset the protective cover 201, thus protecting the inductor assembly 3. The protective cover 201 adopts a composite structure of alloy material layer 2011, glass fiber reinforced plastic 2012, and polystyrene 2013, which can effectively resist external mechanical impact, electromagnetic interference, and chemical corrosion, protecting the inductor assembly 3 to work normally. According to the circuit design requirements, the installation position and height requirements of the rotary snap-fit ​​common mode inductor are determined. By loosening the limit lock rod 103, adjust the position of the second lifting plate 102 on the limit slide groove 1011 of the first lifting plate 101, adjust the inductor assembly 3 to a suitable height, then tighten the limit lock rod 103 to fix the second lifting plate 102, and connect the leads 303 at both ends of the coil 301 in the inductor assembly 3 to the corresponding circuit nodes according to the circuit design to realize the common mode inductor access to the circuit. Using the limit slot 202 on the protective cover 201, adjust the protective plate assembly 2 and other related components to complete the installation of the protective cover 201.At this time, the limiting slide rail 203, limiting base plate 205, and return spring 204 within the protective cover 201 work together to protect the inductor assembly 3. When the circuit is powered on, common-mode interference signals pass through the inductor assembly 3, and the coil 301 and magnetic core 302 function to suppress the common-mode interference signals, achieving a filtering function and ensuring normal circuit operation. During this process, the shielding plate 104 of the lifting support plate assembly 1 reduces the impact of external electromagnetic interference on the inductor assembly 3, and the composite structure of the protective cover 201 resists damage to the inductor assembly 3 from the external environment. When maintenance or repair of the inductor assembly 3 is required, external force is applied to the protective cover 201 to overcome the elastic force of the return spring 204 and move along the limiting slide rail 203, exposing the inductor assembly 3 for easy operation by staff. After the operation is completed, the external force is released, and the protective cover 201 resets under the action of the return spring 204, re-protecting the inductor assembly 3.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary snap-fit ​​common mode inductor, comprising a lifting support plate assembly (1), characterized in that: An inductor assembly (3) is installed at the middle limit of the lifting support plate assembly (1), and an adjustable protective plate assembly (2) is installed at the top limit of the lifting support plate assembly (1). The adjustable protective plate assembly (2) includes a protective cover (201), a limiting slot (202) is provided on one side of the protective cover (201), and limiting slots (202) are provided on both sides of the bottom of one side of the protective cover (201). At the same time, limiting slide rails (203) are installed on the inner walls of both sides of the protective cover (201), and a limiting base plate (205) is installed at the bottom of the limiting slide rails (203).

2. The rotary snap-fit ​​common mode inductor according to claim 1, characterized in that: The lifting support plate assembly (1) includes a lifting plate one (101), a lifting plate two (102) is installed at the bottom of the lifting plate one (101) through a limiting lifting plate, and a shielding plate (104) is installed at the top of the lifting plate one (101). A limiting locking rod (103) is installed on one side of the lifting plate two (102), and the limiting lifting plate is limited and braked by the limiting locking rod (103).

3. A rotary snap-fit ​​common mode inductor according to claim 2, characterized in that: Limiting grooves (1011) are provided on the outer walls of both sides of the lifting plate one (101) and the lifting plate two (102).

4. A rotary snap-fit ​​common mode inductor according to claim 1, characterized in that: The top of both sides of the limiting base plate (205) is equipped with a reset spring (204).

5. A rotary snap-fit ​​common mode inductor according to claim 1, characterized in that: The inductor assembly (3) includes a coil (301), a magnetic core (302) is installed at the middle limit of the coil (301), and leads (303) are installed at both ends of the coil (301). The magnetic core (302) is installed at the middle top of the lifting plate (102) through a frame.

6. A rotary snap-fit ​​common mode inductor according to claim 1, characterized in that: The protective cover (201) includes an alloy material layer (2011), on the outside of which glass fiber reinforced plastic (2012) is installed, and on the outside of which polystyrene (2013) is installed.

Images