Common mode inductor with external insulation type structure

Abstract

The utility model discloses a common mode inductor with an external insulation type structure, and particularly relates to the xx field, the common mode inductor comprises a protection piece used for protection, the protection piece is provided with a connecting assembly, the connecting assembly comprises a heat conduction transmission cylinder arranged in the middle of the protection piece, the outer side of the heat conduction transmission cylinder is sleeved with a magnetic core, and the magnetic core is provided with a current winding. The connection assembly, the magnetic core and the current winding are embedded in the middle of the protection piece, the protection piece protects the magnetic core, the current winding and the connectors, the current winding is firstly prevented from being damaged, meanwhile, all the connectors make contact with the electrodes to conduct signal transmission, the electrodes are protected through the baffles on the outer sides of the outer blocking pieces, and the protection effect is good. According to the common-mode inductor, the phenomenon of electric leakage can be effectively avoided, and the safety of the common-mode inductor during use is ensured.

Description

Technical Field

[0001] This utility model relates to the field of common mode inductor technology, and more specifically, to a common mode inductor with an externally insulated structure. Background Technology

[0002] A common-mode inductor consists of two sets of windings with the same number of turns but opposite directions. These two windings ensure that the magnetic flux generated by the line current in each winding is equal in magnitude but opposite in phase. When a normal current flows through the common-mode inductor, the current generates opposing magnetic fields in the inductor coils wound in the same phase, which cancel each other out. At this time, the normal signal current is mainly affected by the coil resistance. When a common-mode current flows through the coil, due to the unidirectional nature of the common-mode inductor, a unidirectional magnetic field is generated within the coil, increasing the coil's inductive reactance. This results in a high inductive reactance and a strong damping effect, thus attenuating the common-mode current and achieving filtering. It primarily functions as a signal coupler, DC isolation, impedance matching, high-voltage isolation, and common-mode suppression, completing primary and secondary signal transmission, DC isolation, impedance matching, and primary and secondary high-voltage protection, thereby achieving common-mode signal suppression.

[0003] Among them, the patent with announcement number CN220796426U discloses a surface-mount common mode inductor. This utility model includes: a magnetic core, and also includes current conduction connection disks installed at both ends of the magnetic core, and a heat dissipation structure installed below the current conduction connection disks. The bottom end of the current conduction connection disks is equipped with a current conduction connection bracket; the heat dissipation structure includes: a heat sink, which is installed below the current conduction connection disks;

[0004] In use, this structure conducts the generated heat to the heat-conducting block composed of vertical and horizontal heat-conducting plates to increase the heat dissipation area. At the same time, the exhaust fan installed in the second groove is turned on to accelerate the airflow, creating a negative pressure inside the rectangular insulating frame. External air is then transported through the transmission pipe and hollow column to the L-shaped frame, filtered by the filter screen, and then transported through the groove to the rectangular insulating frame, where it exchanges heat with the outer wall of the heat dissipation block composed of vertical and horizontal heat-conducting plates, thus improving heat exchange efficiency. However, this structure cannot achieve the function of wire-wrapped insulation during use, which can easily cause leakage. At the same time, the wires are also easily damaged by external influences. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a common mode inductor with an externally insulated structure, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a common mode inductor with an externally insulated structure, including a protective component for protection, wherein a connecting component is provided on the protective component;

[0007] The connecting assembly includes a heat transfer cylinder disposed in the middle of the protective component, a magnetic core sleeved on the outside of the heat transfer cylinder, a current winding disposed on the magnetic core, and a connector fixedly disposed at both ends of the current winding.

[0008] An electrode is provided at one end of each of the two connectors, and each electrode extends to both sides of the protective member. An outer baffle is provided on the outer side of each of the two electrodes. A baffle is fixedly provided at one end of the outer baffle, and the electrode is located between the baffle and the outer baffle. The outer baffle is located on the outer side of the protective member and is engaged with the protective member. A reinforcing L-plate is fixedly provided on the top of the outer baffle.

[0009] As can be seen, in the above technical solution, the magnetic core and current winding are embedded in the middle of the protective component. The protective component protects the magnetic core, current winding and connectors, firstly preventing damage to the current winding. At the same time, each connector contacts the electrode to transmit signals, and the electrodes are protected by the baffle on the outside of the outer baffle, which can effectively prevent leakage and ensure the safety of the common mode inductor during use.

[0010] Optionally, in a possible implementation, the vertical cross-sectional shape of the reinforcing L-plate is set to L-shape, and the top of the reinforcing L-plate extends to the top of the protective member. One end of the heat transfer cylinder is provided with a heat sink, the reinforcing L-plate extends to the top of the heat sink and is engaged with the heat sink. Both sides of the surface of the protective member are provided with misalignment openings, the electrode is located in the misalignment openings, and two abutment blocks are fixedly provided on the upper surface of the protective member, and each abutment block is located on both sides of the surface of the heat sink.

[0011] As can be seen, in the above technical solution, the heat generated by the current winding during operation is conveniently transferred to the heat transfer cylinder and then to the heat sink, thereby allowing the heat to dissipate quickly and ensuring the heat dissipation efficiency and effect of the device during use. Furthermore, the outer baffle and the contact block facilitate the installation of the heat sink and the heat transfer cylinder on the protective component to position the heat transfer cylinder and ensure the stability of the heat transfer cylinder during installation.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up connection components, compared with the existing technology, the overall design is simple and the structure is reasonable. Through the corresponding cooperation of each structure, the magnetic core and current winding are embedded in the middle of the protective component. The protective component protects the magnetic core, current winding and connector, firstly avoiding damage to the current winding. At the same time, each connector contacts the electrode to transmit signals, and the electrodes are protected by the baffle on the outside of the outer baffle, which can effectively avoid leakage and ensure the safety of the common mode inductor during use.

[0014] Furthermore, the heat transfer cylinder facilitates the transfer of heat generated during the operation of the current winding to the heat transfer cylinder, and then to the heat sink, thereby enabling rapid heat dissipation and ensuring the heat dissipation efficiency and effectiveness of the device during use.

[0015] Furthermore, the external baffle and the contact block facilitate the installation of the heat sink and the heat transfer cylinder on the protective component, thereby positioning the heat transfer cylinder and ensuring its stability during installation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0017] Figure 1 This is a front view of the overall structure of this utility model.

[0018] Figure 2 This is a perspective view of the protective component, outer baffle, and reinforcing L-plate of this utility model.

[0019] Figure 3 This is a perspective view of the magnetic core, current winding, connector, heat transfer cylinder, and heat sink of this utility model.

[0020] Figure 4 This is a side view of the magnetic core, current winding, connector, and heat sink of this utility model.

[0021] The attached diagram is labeled as follows: 1. Protective component; 2. Heat transfer cylinder; 3. Magnetic core; 4. Current winding; 5. Connector; 6. Electrode; 7. Outer baffle; 8. Reinforcing L-plate; 9. Heat sink; 10. Misalignment opening; 11. Contact block. Detailed Implementation

[0022] 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.

[0023] As attached Figure 1 - Figure 4The common-mode inductor with an externally insulated structure shown has a magnetic core 3 and a current winding 4 embedded in the middle of the protective component 1 via a connecting component on the protective component 1. The protective component 1 protects the magnetic core 3, the current winding 4, and the connector 5, firstly preventing damage to the current winding 4. At the same time, each connector 5 contacts the electrode 6 for signal transmission, and the electrode 6 is protected by the baffle on the outside of the outer baffle 7, which can effectively prevent leakage and ensure the safety of the common-mode inductor during use. Furthermore, the heat transfer cylinder 2 facilitates the transfer of heat generated by the current winding 4 during operation to the heat transfer cylinder 2, and then to the heat sink 9, thereby allowing the heat to dissipate quickly and ensuring the heat dissipation efficiency and effect of the device during use. The specific structural configuration of the components is as follows.

[0024] The connecting assembly includes a heat transfer cylinder 2 disposed in the middle of the protective component 1, a magnetic core 3 sleeved on the outside of the heat transfer cylinder 2, a current winding 4 disposed on the magnetic core 3, and a connector 5 fixedly disposed at both ends of the current winding 4.

[0025] An electrode 6 is provided at one end of each of the two connectors 5, and each electrode 6 extends to both sides of the protective member 1. An outer baffle 7 is provided on the outer side of each of the two electrodes 6. A baffle is fixedly provided at one end of the outer baffle 7, and the electrode 6 is located between the baffle and the outer baffle 7. The outer baffle 7 is located on the outer side of the protective member 1 and is snapped into the protective member 1. A reinforcing L plate 8 is fixedly provided on the top of the outer baffle 7.

[0026] The vertical cross-sectional shape of the reinforcing L plate 8 is set to L-shape, and the top of the reinforcing L plate 8 extends to the top of the protective component 1. One end of the heat transfer cylinder 2 is provided with a heat sink 9. The reinforcing L plate 8 extends to the top of the heat sink 9 and is engaged with the heat sink 9. Misalignment openings 10 are provided on both sides of the surface of the protective component 1. The electrode 6 is located in the misalignment opening 10. Two abutment blocks 11 are fixedly provided on the upper surface of the protective component 1, and each abutment block 11 is located on both sides of the surface of the heat sink 9.

[0027] According to the above structure, when the common mode inductor is in use, the magnetic core 3 and the current winding 4 are embedded in the middle of the protective component 1. The protective component 1 protects the magnetic core 3, the current winding 4 and the connector 5, firstly preventing damage to the current winding 4. At the same time, each connector 5 contacts the electrode 6 to transmit signals, and the electrode 6 is protected by the baffle outside the outer baffle 7, which can effectively prevent leakage and ensure the safety of the common mode inductor during use.

[0028] Furthermore, the heat generated by the current winding 4 during operation is easily transferred to the heat transfer cylinder 2, and then transferred to the heat sink 9 through the heat transfer cylinder 2, thereby allowing the heat to dissipate quickly and ensuring the heat dissipation efficiency and effect of the device during use.

[0029] Furthermore, the outer baffle 7 and the contact block 11 facilitate the installation of the heat sink 9 and the heat transfer cylinder 2 on the protective component 1 to position the heat transfer cylinder 2 and ensure the stability of the heat transfer cylinder 2 during installation.

[0030] Unlike existing technologies, this application discloses a common-mode inductor with an externally insulated structure. The magnetic core 3 and current winding 4 are embedded in the middle of the protective component 1. The protective component 1 protects the magnetic core 3, current winding 4, and connectors 5, preventing damage to the current winding 4 first. At the same time, each connector 5 contacts the electrode 6 for signal transmission, and the electrode 6 is protected by the baffle on the outside of the outer baffle 7, which can effectively prevent leakage and ensure the safety of the common-mode inductor during use. Furthermore, the heat transfer cylinder 2 facilitates the transfer of heat generated by the current winding 4 during operation to the heat transfer cylinder 2, and then to the heat sink 9, thereby enabling rapid heat dissipation and ensuring the heat dissipation efficiency and effect of the device during use.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A common-mode inductor with an externally insulated structure, including a protective element (1) for protection, characterized in that: The protective component (1) is provided with a connecting assembly; The connecting assembly includes a heat transfer cylinder (2) disposed in the middle of the protective component (1), a magnetic core (3) is sleeved on the outside of the heat transfer cylinder (2), a current winding (4) is disposed on the magnetic core (3), and a connector (5) is fixedly disposed at both ends of the current winding (4). Each of the two connectors (5) is provided with an electrode (6) at one end, and each electrode (6) extends to both sides of the protective member (1).

2. The common-mode inductor with an externally insulated structure according to claim 1, characterized in that: Both electrodes (6) are provided with outer baffles (7) on their outer sides. One end of the outer baffle (7) is fixedly provided with a baffle plate, and the electrode (6) is located between the baffle plate and the outer baffle (7).

3. The common-mode inductor with an externally insulated structure according to claim 2, characterized in that: The outer baffle (7) is located outside the protective member (1) and is engaged with the protective member (1). A reinforcing L plate (8) is fixedly provided on the top of the outer baffle (7).

4. The common-mode inductor with an externally insulated structure according to claim 3, characterized in that: The vertical cross-sectional shape of the reinforcing L plate (8) is set to L-shape, and the top of the reinforcing L plate (8) extends to the top of the protective member (1).

5. The common-mode inductor with an externally insulated structure according to claim 4, characterized in that: One end of the heat transfer cylinder (2) is provided with a heat sink (9), and the reinforcing L plate (8) extends to the top of the heat sink (9) and is engaged with the heat sink (9).

6. The common-mode inductor with an externally insulated structure according to claim 1, characterized in that: The protective component (1) has misalignment openings (10) on both sides of its surface, and the electrode (6) is located inside the misalignment openings (10).

7. The common-mode inductor with an externally insulated structure according to claim 1, characterized in that: Two abutment blocks (11) are fixedly provided on the upper surface of the protective component (1), and each abutment block (11) is located on both sides of the surface of the heat sink (9).

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