Insulation protection framework and plug-in inductor

Abstract

The utility model discloses an insulation protection framework and a plug-in inductor, the insulation protection framework comprises two side plates, the two side plates are respectively provided with a plurality of mounting holes, the plurality of mounting holes in the same side plate are arranged along the left-right direction, the mounting holes of the two side plates are arranged in a one-to-one correspondence manner, and the mounting holes are used for mounting magnetic cores; the connecting plate is connected with the upper ends of the two side plates respectively, the connecting plate and the two side plates jointly form a mounting cavity with a downward opening, the mounting holes are communicated with the mounting cavity respectively, and the mounting cavity is used for mounting a coil winding. The insulation protection framework can improve the safety of the plug-in inductor.

Description

Technical Field

[0001] This utility model relates to the field of power technology, and in particular to insulating protective frames and plug-in inductors. Background Technology

[0002] In recent years, the photovoltaic (PV) power generation industry has become one of the fastest-growing new energy industries. With the widespread application of solar PV inverters, charging piles, UPS systems, and energy storage devices, PV inductors face greater challenges, with increasingly diversified requirements for product structure and performance. Along with the continuous improvement of PV power generation efficiency and the increasing scale of PV power plants, the demand for PV-based energy storage is also rapidly expanding. In energy storage converters (PCS), balancing inductors are mainly used on the DC side to filter out high-frequency pulsating currents on the DC side, ensuring a stable DC voltage output, while also regulating the rate of current change to improve system response performance.

[0003] However, the insulation protection performance of existing plug-in inductors needs to be improved. They cannot guarantee effective isolation between plug-in inductors and other live components on the PCB board, resulting in low safety and affecting the performance of plug-in inductors. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an insulating protective frame and a plug-in inductor.

[0005] The solution to the technical problem of this utility model is:

[0006] Firstly, an insulating protective frame is proposed for use in plug-in inductors, wherein the plug-in inductor includes a magnetic core and coil windings, and the insulating protective frame includes:

[0007] Two side plates, each side plate having multiple mounting holes, the mounting holes on the same side plate being arranged in a left-right direction, the mounting holes on the two side plates being arranged one-to-one, the mounting holes being used to install the magnetic core;

[0008] A connecting plate is connected to the upper ends of the two side plates respectively, and together with the two side plates, forms a mounting cavity that opens downwards. The mounting holes are respectively connected to the mounting cavity, and the mounting cavity is used to install the coil winding.

[0009] This utility model has at least the following beneficial effects: In use, the coil winding of the plug-in inductor is installed in the mounting cavity, and the side plate can isolate the upper or lower yoke of the coil winding and the magnetic core to ensure the safety performance of the plug-in inductor; at the same time, since a connecting plate is provided, which is located above the coil winding, it can effectively isolate the coil winding from other external live devices, improve the safety of the entire plug-in inductor, and ensure the performance of the plug-in inductor.

[0010] As a further improvement to the above technical solution, the connecting plate includes two isolation blocks, which are respectively located at the left and right ends above the mounting cavity, and a heat dissipation port is formed between the two isolation blocks, which is connected to the mounting cavity.

[0011] As a further improvement to the above technical solution, both isolation blocks are arc-shaped structures. The isolation block located at the left end of the mounting cavity protrudes upward to the left, and the isolation block located at the right end of the mounting cavity protrudes upward to the right.

[0012] As a further improvement to the above technical solution, the side plate is provided with a stop block, which is located on the side of the two side plates facing away from each other, and the stop block is located on the outside of the mounting hole.

[0013] As a further improvement to the above technical solution, each of the blocks includes an upper block section and two side blocks. The upper block section is located above the mounting hole and extends in the left-right direction. The two side blocks are respectively connected to the left and right ends of the upper block section and extend downward. The plurality of mounting holes are located between the two side blocks.

[0014] As a further improvement to the above technical solution, the mounting hole is an oblong hole, and the upper and lower ends of the mounting hole are semi-circular arcs.

[0015] As a further improvement to the above technical solution, the thickness of the side plate is greater than or equal to 2 mm.

[0016] As a further improvement to the above technical solution, the thickness of the connecting plate is greater than or equal to 2 mm.

[0017] As a further improvement to the above technical solution, the four corners of each side plate are rounded.

[0018] Secondly, a plug-in inductor is proposed, including an insulating protective frame as described in any of the above technical solutions. Because the plug-in inductor has an insulating protective frame, a safe distance can be ensured between the coil winding and other live components, resulting in high safety performance for the entire plug-in inductor. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall structure of the insulating protective frame according to an embodiment of the present utility model;

[0021] Figure 2 This is a front view of the insulating protective frame according to an embodiment of the present utility model;

[0022] Figure 3 This is a left view of the insulating protective frame according to an embodiment of the present utility model;

[0023] Figure 4 This is a top view of the insulating protective frame according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram illustrating the use of the insulating protective frame according to an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the overall structure of the plug-in inductor according to an embodiment of the present invention.

[0026] Reference numerals: 100, Insulating protective frame; 110, Side plate; 111, Mounting hole; 112, Stop block; 120, Connecting plate; 121, Isolation block; 122, Heat dissipation vent; 200, Coil winding; 300, Magnetic core; 400, Base. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying 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.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. The various technical features of this utility model can be combined interactively without contradicting each other.

[0032] Reference Figure 1 and Figure 5 Firstly, this utility model embodiment proposes an insulating protective frame 100, which is applied to a plug-in inductor. It can provide support for the magnetic core 300 and coil winding 200 of the plug-in inductor, and can maintain effective isolation between the coil winding 200 and other live components, thereby improving the safety of the entire plug-in inductor and ensuring its performance.

[0033] It is understood that the plug-in inductor includes a magnetic core 300 and a coil winding 200. The magnetic core 300 includes an upper yoke, a lower yoke, and a center post. Multiple center posts are provided, and the two ends of each center post are detachably connected to the upper yoke and the lower yoke, respectively. In this embodiment, two center posts are provided, and the front and rear ends of the chain center post are connected to the upper yoke and the lower yoke, respectively. The two center posts, the upper yoke, and the lower yoke together form a closed magnetic circuit. In use, the coil winding 200 is wound around the center post of the magnetic core 300. The connection structure between the magnetic core 300 and the coil winding 200 is prior art in the field, and those skilled in the art should understand it.

[0034] Reference Figures 1 to 5 The insulating protective frame 100 of this utility model embodiment includes a connecting plate 120 and two side plates 110. The two side plates 110 are located on the front and rear sides of the connecting plate 120 respectively. The upper ends of the two side plates 110 are connected to the connecting plate 120 respectively. The connecting plate 120 and the two side plates 110 together form a mounting cavity that opens downward. In use, the coil winding 200 is set in the mounting cavity.

[0035] Each of the two side plates 110 has multiple mounting holes 111. These mounting holes 111 on the same side plate 110 are arranged in a left-right direction, and the mounting holes 111 on the two side plates 110 are arranged one-to-one and communicate with the mounting cavity. In this embodiment, the magnetic core 300 has two central pillars, and correspondingly, each side plate 110 has two mounting holes 111. In use, the central pillars of the magnetic core 300 are arranged in a front-back direction and inserted into the mounting holes 111 of the two side plates 110. The central pillars extend outwards to the outside of the mounting cavity. The upper yoke and lower yoke are respectively located on the front and rear sides of the insulating protective frame 100.

[0036] In use, the two side plates 110 are located between the upper yoke and the coil winding 200 and between the lower yoke and the coil winding 200, respectively, which can ensure that the upper or lower yoke and the coil winding 200 maintain a safe distance. Moreover, since the connecting plate 120 blocks the upper part of the mounting cavity, other conductors can be forcibly isolated from the coil winding 200 installed inside the mounting cavity, thus providing insulation protection.

[0037] It is understood that the insulating protective frame 100 of this utility model embodiment is made of insulating materials, such as epoxy resin, plastic, ceramics, etc., and is not specifically limited here.

[0038] In some embodiments, the connecting plate 120 includes two isolation blocks 121, which are respectively disposed above the mounting cavity and located at the left and right ends of the mounting cavity. A heat dissipation vent 122 is formed between the two isolation blocks 121 and is connected to the mounting cavity. It can be understood that this arrangement can ensure the forced isolation of the coil winding 200 from other conductors while also ensuring the heat dissipation performance of the insulating protective frame 100, further improving the safety of the plug-in inductor.

[0039] In some embodiments, both isolation blocks 121 have an arc-shaped structure. The isolation block 121 located at the left end of the mounting cavity protrudes upward to the left, while the isolation block 121 located at the right end of the mounting cavity protrudes upward to the right. This arrangement also protects the left side of the coil winding 200 located at the left end and the right side of the coil winding 200 located at the right end, forcibly isolating the coil winding 200 from the conductors located on the left and right sides and maintaining a safe distance, thereby further improving the safety of the plug-in inductor.

[0040] In some embodiments, a stop 112 is provided on the side plate 110. The stop 112 is located on the opposite sides of the two side plates 110 and is disposed outside the mounting hole 111. In use, the stop 112 is located on the outer periphery of the upper or lower yoke and can protect and position the outer periphery of the upper or lower yoke.

[0041] In this embodiment, the stop block 112 includes an upper stop section and two side stop sections. The upper stop section is located above each mounting hole 111 and extends in the left-right direction. The two side stop sections are respectively connected to the left and right ends of the upper stop section and extend downward. Each mounting hole 111 is located between the two side stop sections. This arrangement facilitates the positioning of the upper and lower yokes, which is beneficial for the assembly of the plug-in inductor.

[0042] In some embodiments, each corner of the upper yoke and the lower yoke is a rounded corner. Correspondingly, the upper stop section and the side stop section are connected by a rounded surface transition. The spatial shape enclosed by the upper stop section and the two side stop sections corresponds to the upper yoke or the lower yoke, which is more conducive to the installation of the upper yoke or the lower yoke.

[0043] In some embodiments, the mounting hole 111 is an oblong hole, with both the upper and lower ends of the mounting hole 111 being semi-circular. It is understood that the cross-section of the central post of the magnetic core 300 used in this embodiment is consistent with the hole shape of the mounting hole 111. When the coil winding 200 is wound around the outer periphery of the central post, it can prevent the edge of the central post from piercing the coil winding 200, thereby further improving the safety performance of the plug-in inductor.

[0044] In some embodiments, the thickness of the side plate 110 is greater than or equal to 2 mm. This arrangement ensures a safe distance of greater than or equal to 2 mm between the coil winding 200 and the upper or lower yoke.

[0045] In some embodiments, the thickness of the connecting plate 120 is greater than or equal to 2 mm. This arrangement ensures a safe distance of greater than or equal to 2 mm between the coil winding 200 and other conductors.

[0046] In some embodiments, the side plate 110 and the connecting plate 120 are integrally formed, which can ensure the connection strength between the side plate 110 and the connecting plate 120 and extend the service life of the insulating protective frame 100.

[0047] In some embodiments, the four corners of each side plate 110 are rounded, which is more conducive to the installation of the insulating protective frame 100, avoids the operator being scratched by the sharp corners of the side plate 110 during the installation process, and improves the safety of the manufacturing process of plug-in inductors and products containing them.

[0048] Secondly, this utility model embodiment provides a plug-in inductor, which includes the insulating protective frame 100 proposed in any embodiment of the first aspect. In this embodiment, the plug-in inductor also includes a magnetic core 300 and a coil winding 200. The plug-in inductor uses a flat wire vertical winding method to form the coil winding 200, which is convenient for assembly and installation. It also uses a low-loss, high-bias magnetic powder core, which has lower losses while meeting the bias performance requirements.

[0049] Understandably, because the plug-in inductor has an insulating protective frame 100, unlike conventional designs, this plug-in inductor ensures a safe distance between the coil winding 200 and the upper or lower yoke, while the connection plate 120 effectively isolates the coil winding 200 of the plug-in inductor from other live components on the PCB board.

[0050] In some embodiments, refer to Figure 6 The plug-in inductor also includes a base 400, which has multiple wire outlets. The number of wire outlets is the same as the number of coil windings 200. During installation, the base 400 is located at the lower end of the insulating protective frame 100 and connected to the insulating protective frame 100. The wire outlets are connected to the mounting cavity. The coil windings 200 can extend downwards out of the mounting cavity and out through the wire outlets for subsequent power connection.

[0051] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An insulating protective frame, characterized in that, Applied to plug-in inductors, the plug-in inductors include a magnetic core and coil windings, and the insulating protective frame includes: Two side plates, each side plate having multiple mounting holes, the mounting holes on the same side plate being arranged in a left-right direction, the mounting holes on the two side plates being arranged one-to-one, the mounting holes being used to install the magnetic core; A connecting plate is connected to the upper ends of the two side plates respectively, and together with the two side plates, forms a mounting cavity that opens downwards. The mounting holes are respectively connected to the mounting cavity, and the mounting cavity is used to install the coil winding.

2. The insulating protective frame according to claim 1, characterized in that, The connecting plate includes two isolation blocks, which are respectively located at the left and right ends above the mounting cavity. A heat dissipation port is formed between the two isolation blocks and is connected to the mounting cavity.

3. The insulating protective frame according to claim 2, characterized in that, Both isolation blocks have an arc-shaped structure. The isolation block located at the left end of the mounting cavity protrudes upward to the left, and the isolation block located at the right end of the mounting cavity protrudes upward to the right.

4. The insulating protective frame according to claim 1, characterized in that, The side plate is provided with a stop block, which is located on the side of the two side plates facing away from each other, and the stop block is located on the outside of the mounting hole.

5. The insulating protective frame according to claim 4, characterized in that, Each of the aforementioned blocks includes an upper stop section and two side stop sections. The upper stop section is located above the mounting hole and extends in the left-right direction. The two side stop sections are respectively connected to the left and right ends of the upper stop section and extend downward. The plurality of mounting holes are located between the two side stop sections.

6. The insulating protective frame according to claim 1, characterized in that, The mounting hole is an oblong hole, and the upper and lower ends of the mounting hole are semi-circular arcs.

7. The insulating protective frame according to claim 1, characterized in that, The thickness of the side plate is greater than or equal to 2 mm.

8. The insulating protective frame according to claim 1, characterized in that, The thickness of the connecting plate is greater than or equal to 2 mm.

9. The insulating protective frame according to claim 1, characterized in that, Each of the four corners of the aforementioned side panel is a rounded corner.

10. A plug-in inductor, characterized in that, It includes the insulating protective frame as described in any one of claims 1 to 9.

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