Plug-in common mode inductor

Abstract

This utility model discloses a through-hole common-mode inductor, comprising a main body, which includes a protective shell, a base plate, and a top plate. A base is provided inside the protective shell, and the common-mode inductor main body is mounted on the base. The common-mode inductor main body has four sets of through-hole pins penetrating the base plate. A protective component includes a fixed insulating sleeve located outside each set of through-hole pins, and a telescopic insulating sleeve slidably connected inside each fixed insulating sleeve for protecting the through-hole pins. An installation assembly includes fixed seats located on both side walls of the protective shell, each fixed seat containing a locking block. The base has a locking groove for connecting with the locking block, used for assembling and disassembling the common-mode inductor main body. The protective component of this utility model protects the through-hole pins, preventing damage when the through-hole common-mode inductor is not in use. The installation assembly enables quick assembly and disassembly of the protective shell and the through-hole common-mode inductor, facilitating rapid installation and use of the through-hole common-mode inductor.

Description

Technical Field

[0001] This utility model relates to the field of inductor technology, and in particular to a through-hole common mode inductor. Background Technology

[0002] A through-hole common-mode inductor is an electromagnetic component used to suppress common-mode noise. It uses a through-hole package and is suitable for mounting via PCB holes. Its core consists of a high-permeability magnetic ring or magnetic can, with two wires wound in parallel to form a symmetrical coil structure. It presents high impedance to common-mode interference, effectively filtering out common-mode noise in the circuit, while allowing differential-mode signals (useful signals) to pass through with low loss.

[0003] Existing through-hole common mode inductors have the following shortcomings in use: through-hole common mode inductors are usually used in an exposed installation, and dust easily accumulates on the surface of the common mode inductor, affecting its heat dissipation, which in turn affects the performance and lifespan of the through-hole common mode inductor. At the same time, the pins of the through-hole common mode inductor are not equipped with protective structures, and the pins of the through-hole common mode inductor may tilt or bend when carried, causing the entire through-hole common mode inductor to become unusable.

[0004] Therefore, those skilled in the art have proposed a through-hole common-mode inductor to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the above-mentioned through-hole common mode inductor, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a through-hole common mode inductor, which solves the problem that the performance and service life of through-hole common mode inductors are affected by their exposed installation.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a through-hole common-mode inductor, comprising:

[0009] The main body includes a protective shell, a bottom plate, and a top plate. A base is provided inside the protective shell, and a common mode inductor body is installed on the base. The common mode inductor body is provided with four sets of through-hole pins that penetrate the bottom plate.

[0010] The protective component includes a fixed insulating sleeve disposed on the outside of each group of insertion pins, and a telescopic insulating sleeve is slidably connected inside each group of fixed insulating sleeves for the protection of the insertion pins.

[0011] The mounting assembly includes mounting bases on both sides of the protective shell, each mounting base having a locking block, and the base having a slot for connecting the locking block, for assembling and disassembling the common mode inductor body.

[0012] As a preferred embodiment of the common mode inductor described in this utility model, the top plate is snapped into the protective shell, the inner wall of the protective shell is fixedly connected to two sets of brackets, each set of brackets is connected to a cooling fan, the protective shell is provided with two sets of heat dissipation vents, and the inner wall of each set of heat dissipation vents is connected to a dustproof mesh.

[0013] As a preferred embodiment of the common-mode inductor described in this utility model, the protective component further includes a screw fixedly connected to the base plate, a linkage plate slidably connected to the screw, four sets of linkage rods fixedly connected to the linkage plate, and the ends of the four sets of linkage rods away from the linkage plate being fixedly connected to four sets of telescopic insulating sleeves.

[0014] In a preferred embodiment of the insert common mode inductor of this utility model, a spring is sleeved on the outer wall of the screw, and the spring is located between the base plate and the linkage plate.

[0015] In a preferred embodiment of the common-mode inductor described in this utility model, a nut is threaded onto the screw, and the nut is fitted onto the linkage plate.

[0016] As a preferred embodiment of the insert common mode inductor of this utility model, the mounting assembly further includes a connecting hole formed on the protective shell, and the connecting hole is connected to the slot.

[0017] In a preferred embodiment of the common-mode inductor described in this utility model, a pull rod is inserted through the fixed base, a guide plate is fixedly connected to the pull rod, and one end of the pull rod near the base is fixedly connected to the locking block.

[0018] In a preferred embodiment of the common-mode inductor of this utility model, the outer wall of the pull rod is fitted with a second spring, the second spring is located between the inner wall of the fixed base and the guide plate, and an elastic element is fixedly connected between the side of the guide plate away from the second spring and the locking block.

[0019] The beneficial effects of this utility model are as follows: The through-hole common mode inductor of this utility model is installed inside the protective shell, which can protect the through-hole common mode inductor. At the same time, after the two sets of cooling fans are working, the heat on the through-hole common mode inductor can be discharged through the heat dissipation port, realizing rapid heat dissipation of the through-hole common mode inductor and improving the performance and service life of the through-hole common mode inductor. Through the elasticity of the first spring on the protective component, the linkage plate and the four sets of linkage rods can drive the telescopic insulating sleeve to always move away from the base plate, which can protect the through-hole pins and prevent the through-hole common mode inductor from being damaged when not in use, thus providing good protection for the through-hole common mode inductor. By pulling the pull rod on the mounting component, the guide plate can be moved. With the elasticity of the second spring and the elastic element, the locking block can be connected or disengaged from the locking slot on the base, realizing quick assembly and disassembly of the protective shell and the through-hole common mode inductor, which facilitates the quick installation and use of the through-hole common mode inductor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of a through-hole common mode inductor according to the present invention.

[0022] Figure 2 This is a cross-sectional view of the protective shell structure of a common-mode inductor according to the present invention.

[0023] Figure 3 This is a cross-sectional schematic diagram of the connection structure between the mounting assembly, protective shell, and base of a plug-in common mode inductor according to this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of a through-hole common mode inductor according to the present invention.

[0025] Figure Descriptions: 100. Main body; 101. Protective shell; 102. Base plate; 103. Inserted pins; 104. Top plate; 105. Common mode inductor body; 106. Base; 107. Bracket; 108. Cooling fan; 109. Heat dissipation vent; 110. Dustproof mesh; 200. Protective component; 201. Screw; 202. Spring 1; 203. Nut; 204. Linkage plate; 205. Linkage rod; 206. Fixed insulating sleeve; 207. Telescopic insulating sleeve; 300. Mounting assembly; 301. Fixed base; 302. Connecting hole; 303. Slot; 304. Pull rod; 305. Spring 2; 306. Guide plate; 307. Elastic element; 308. Locking block. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figures 1 to 3 This is the first embodiment of the present invention, which provides a through-hole common-mode inductor that can protect the through-hole common-mode inductor and its pins, including:

[0032] The main body 100 includes a protective shell 101, a base plate 102, and a top plate 104. A base 106 is provided inside the protective shell 101, and a common mode inductor body 105 is mounted on the base 106. The common mode inductor body 105 has four sets of insertion pins 103 that penetrate the base plate 102. The base plate 102 and the protective shell 101 are fixedly connected, and the snap-fit ​​top plate 104 is easy to open, so that the base 106 and the common mode inductor body 105 can be installed inside the protective shell 101.

[0033] It should be noted that the base 106, the common mode inductor body 105 and the four sets of through-hole pins 103 constitute the through-hole common mode inductor. This is an existing electromagnetic component. The specific model and working principle will not be described here. Before use, the electrical terminals of the electrical equipment are electrically connected to the electrical terminals of the power supply and the controller through wires.

[0034] The protective component 200 includes a fixed insulating sleeve 206 disposed on the outside of each group of insertion pins 103, and a telescopic insulating sleeve 207 is slidably connected inside each group of fixed insulating sleeves 206 for the protection of the insertion pins 103.

[0035] Mounting assembly 300 includes mounting bases 301 on both sides of the protective housing 101. Each mounting base 301 has a locking block 308. The base 106 has a slot 303 connected to the locking block 308 for mounting and dismounting the common mode inductor body 105.

[0036] It should be noted that all structures on the protection component 200 and the mounting assembly 300 are made of insulating materials and do not affect the transmission quality of the through-hole common mode inductor signal.

[0037] In use, the snap-fit ​​top plate 104 is opened, and the base 106 and the common mode inductor body 105 are installed into the protective shell 101, so that the four sets of through-hole pins 103 pass through the four sets of openings on the base plate 102. When fixing the base 106 and the common mode inductor body 105, the locking block 308 on the mounting component 300 is connected to the locking slot 303 to fix them. When the through-hole pins 103 are installed with the PCB board through holes, the sliding of the telescopic insulating sleeve 207 on the protective component 200 within the fixed insulating sleeve 206 exposes the through-hole pins 103, allowing them to connect with the PCB board through holes. When the through-hole pins 103 are not in use, the telescopic insulating sleeve 207 slides down to protect the through-hole pins 103 and prevent damage to the pins of the through-hole common mode inductor when not in use.

[0038] Example 2

[0039] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the top plate 104 is snapped into the protective shell 101. Two sets of brackets 107 are fixed to the inner wall of the protective shell 101. Each set of brackets 107 is connected to a cooling fan 108. Two sets of heat dissipation vents 109 are opened on the protective shell 101, and a dustproof net 110 is connected to the inner wall of each set of heat dissipation vents 109. The operation of the cooling fan 108 can generate negative pressure, which can dissipate the heat on the plug-in common mode inductor through the heat dissipation vents 109. The dustproof net 110 plays a dustproof role, preventing dust from entering the interior of the protective shell 101.

[0040] The protective component 200 also includes a screw 201 fixedly connected to the base plate 102. A linkage plate 204 is slidably connected to the screw 201. Four sets of linkage rods 205 are fixedly connected to the linkage plate 204. The ends of the four sets of linkage rods 205 away from the linkage plate 204 are fixedly connected to four sets of telescopic insulating sleeves 207.

[0041] Among them, the outer wall of the screw 201 is fitted with a spring 202, which is located between the base plate 102 and the linkage plate 204. The elasticity of the spring 202 can always move the end of the linkage plate 204 away from the base plate 102, so that the telescopic insulating sleeve 207 is always located outside the insertion pin 103 to protect it. When the insertion pin 103 is inserted and used, the linkage plate 204 is pressed and moved to move it closer to the base plate 102. At this time, the spring 202 is in a compressed state, and the linkage plate 204 drives the telescopic insulating sleeve 207 to move through four sets of linkage rods 205 to expose the insertion pin 103.

[0042] The screw 201 is threaded with a nut 203, which is fitted onto the linkage plate 204. When the insertion pin 103 is in use, the linkage plate 204 is close to the base plate 102. The nut 203 is rotated to fit against the bottom of the linkage plate 204, thus blocking the elastic force of the spring 202 and preventing the linkage plate 204 from moving due to the elasticity of the spring 202.

[0043] The mounting component 300 also includes a connecting hole 302 formed on the protective shell 101, and the connecting hole 302 is connected to the slot 303.

[0044] A pull rod 304 is inserted through the fixed base 301, and a guide plate 306 is fixedly connected to the pull rod 304. The end of the pull rod 304 near the base 106 is fixedly connected to the locking block 308.

[0045] Among them, the outer wall of the pull rod 304 is fitted with a second spring 305. The second spring 305 is located between the inner wall of the fixed base 301 and the guide plate 306. The side of the guide plate 306 away from the second spring 305 is fixedly connected to the locking block 308 with an elastic element 307. The elastic element 307 is composed of a telescopic rod and a spring. The elastic directions of the second spring 305 and the elastic element 307 are the same. Through the elasticity of the second spring 305 and the elastic element 307, the locking block 308 can always move towards one end of the base 106.

[0046] When in use, pull the lever 304 on the mounting component 300 outward to retract the locking block 308 into the fixing base 301. At this time, the second spring 305 and the elastic element 307 are in a compressed state. Then, open the snap-fit ​​top plate 104, and install the base 106 and the common mode inductor body 105 into the protective shell 101, so that the four sets of plug-in pins 103 pass through the four sets of openings on the base plate 102. Then, after the top plate 104 is installed, release the lever 304. The compressed second spring 305 and the elastic element 307 automatically return to their original positions, so that the locking block 308 moves through the connecting hole 302 and connects with the slot 303 on the base 106, thus fixing the plug-in common mode inductor.

[0047] The elasticity of the spring 202 on the protective component 200 ensures that the end of the linkage plate 204 is always away from the base plate 102, so that the telescopic insulating sleeve 207 is always located outside the insertion pin 103 to protect it. At this time, the nut 203 is located at the bottom end of the screw 201. When the insertion pin 103 is installed with the through hole of the PCB board, the linkage plate 204 is pressed and moved closer to the base plate 102. At this time, the spring 202 is in a compressed state. The linkage plate 204 drives the telescopic insulating sleeve 207 to move within the fixed insulating sleeve 206 through the four sets of linkage rods 205 to expose the insertion pin 103. Then, the nut 203 is rotated and moves upward to fit against the bottom of the linkage plate 204, preventing the linkage plate 204 from moving downward due to the elasticity of the compressed spring 202.

[0048] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An insert molded common mode inductor, characterized by, Include: The main body (100) includes a protective shell (101), a bottom plate (102) and a top plate (104), the protective shell (101) is provided with a base (106) inside, the base (106) is provided with four groups of plug-in pins (103) penetrating the bottom plate (102) on the common mode inductance main body (105); The protection component (200) includes a fixed insulating sleeve (206) provided outside each group of plug-in pins (103), and each group of fixed insulating sleeves (206) is slidably connected with a telescopic insulating sleeve (207) for the protection of the plug-in pin (103); The mounting assembly (300) includes a fixed seat (301) provided on the two side walls of the protective shell (101), each fixed seat (301) is provided with a clamping block (308), and the base (106) is provided with a clamping groove (303) connected with the clamping block (308) for dismounting the common mode inductance main body (105).

2. The plug-in common mode inductor of claim 1, wherein: The top plate (104) is connected with the protective shell (101), the inner wall of the protective shell (101) is fixedly connected with two groups of supports (107), each group of supports (107) is connected with a cooling fan (108), and the protective shell (101) is provided with two groups of cooling holes (109), and the inner wall of each group of cooling holes (109) is connected with a dust screen (110).

3. The plug-in common mode inductor of claim 1, wherein: The protection component (200) further includes a screw rod (201) fixedly connected with the bottom plate (102), the screw rod (201) is slidably connected with a linkage plate (204), the linkage plate (204) is fixedly connected with four groups of linkage rods (205), and the ends of the four groups of linkage rods (205) away from the linkage plate (204) are fixedly connected with the four groups of telescopic insulating sleeves (207).

4. The plug-in common mode inductor of claim 3, wherein: The outer wall of the screw rod (201) is sleeved with a spring (202), and the spring (202) is located between the bottom plate (102) and the linkage plate (204).

5. The plug-in common mode inductor of claim 3, wherein: The screw rod (201) is threadedly connected with a nut (203), and the nut (203) is arranged on the linkage plate (204).

6. The plug-in molded common mode inductance of claim 1, wherein: The mounting assembly (300) further includes a communication hole (302) formed in the protective shell (101), and the communication hole (302) is in communication with the clamping groove (303).

7. The plug-in molded common mode inductance of claim 1, wherein: The fixed seat (301) is provided with a pulling rod (304) penetratingly inserted therein, the pulling rod (304) is fixedly connected with a guide plate (306), and one end of the pulling rod (304) close to the base (106) is fixedly connected with the clamping block (308).

8. The plug-in common mode inductor of claim 7, wherein: The outer wall of the pulling rod (304) is sleeved with a spring (305), and the spring (305) is located between the inner wall of the fixed seat (301) and the guide plate (306), and the guide plate (306) is fixedly connected with an elastic element (307) away from the spring (305) and the clamping block (308).

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