A magnetic device and an electrical apparatus

Abstract

The embodiment of the present application relates to a kind of magnetic device and electrical equipment, and the magnetic device includes magnetic core and winding;The magnetic core is provided with two limiting grooves, and the winding is arranged around the magnetic core, and the winding has two pins, and one pin is limited to one limiting groove.By the magnetic device, the pin of winding is limited by limiting groove, to ensure the stability and reliability of winding in magnetic device.In addition, since the limiting groove of magnetic core limits the pin of winding, i.e. the pin of winding is limited by the magnetic core itself, it is not necessary to additionally set the bottom plate like in the prior art, which overcomes many defects of the prior art that the pin of winding is limited by the bottom plate.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and more particularly to a magnetic device and electrical equipment. Background Technology

[0002] The design of magnetic components largely determines the success or failure of a switching power supply design. Magnetic components are indispensable in almost all power supply circuits. Currently, the magnetic component industry is increasingly developing towards higher efficiency, miniaturization, integration, and low loss. Magnetic components generally consist of a magnetic core and a coil wound around it. The coil has two leads that electrically connect to the circuit board. These two leads need to be limited to improve the stability and reliability of the winding within the magnetic component.

[0003] In existing technologies, a base plate is typically added to magnetic devices to limit or even fix the two pins of a coil. This base plate has limiting holes for the pins to pass through. However, the applicant of this application has discovered that using a base plate with limiting holes to limit the two pins of the coil has several drawbacks. For example, the diameter and position of the limiting holes must be precisely designed to allow the winding pins to pass through, which is inconvenient to manufacture. Furthermore, the pins are easily scratched during the perforation process, increasing the risk of connection failure or non-connection when the pins are electrically connected to the circuit board. Additionally, the base plate increases the overall size of the magnetic device, hindering its miniaturization and weight reduction. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a magnetic device and an electrical device that overcome or at least partially solve the above problems.

[0005] According to one aspect of the present application, a magnetic device is provided, including a magnetic core and a winding; the magnetic core is provided with two limiting grooves, the winding is disposed around the magnetic core, and the winding has two pins, one of the pins being limited to one of the limiting grooves.

[0006] In one alternative approach, the limiting groove is a through groove.

[0007] In one alternative embodiment, the cross-section of the limiting groove is semi-circular, and the cross-section of the winding is circular.

[0008] In one alternative embodiment, the diameter of the cross-section of the limiting groove is larger than the diameter of the cross-section of the winding.

[0009] In one alternative embodiment, one end of the magnetic core has a plane located on the outer surface of the magnetic core.

[0010] In one alternative configuration, the two limiting grooves are disposed opposite to each other at one end of the magnetic core.

[0011] In one alternative, the limiting groove extends into the plane.

[0012] In an alternative embodiment, the magnetic device further includes a positioning post connected to the plane, the positioning post being used for positioning the magnetic device during assembly.

[0013] In an alternative embodiment, the magnetic device further includes an adhesive element that bonds the pins to the magnetic core.

[0014] According to one aspect of the embodiments of this application, an electrical device is provided, including the aforementioned magnetic device.

[0015] The beneficial effects of this application's embodiments are as follows: A magnetic device is provided, including a magnetic core and a winding. The magnetic core is provided with two limiting slots, and the winding is arranged around the magnetic core. The winding has two leads, one of which is confined to one of the limiting slots. Through this magnetic device, the leads of the winding are limited by the limiting slots, ensuring the stability and reliability of the winding within the magnetic device. Furthermore, since the limiting slots on the magnetic core limit the leads of the winding, i.e., the magnetic core itself limits the leads, there is no need for a separate base plate as in the prior art, overcoming many drawbacks of the prior art that require a base plate to limit the leads. For example, when the limiting slots limit the leads of the winding, it is only necessary to place the leads of the winding into the limiting slots; precise design of the limiting slots is not required, improving the overall ease of processing of the magnetic device. Additionally, it reduces the risk of scratching the leads and the risk of connection failure or non-connection when the leads are electrically connected to the circuit board. Moreover, since no base plate is required, the overall size of the magnetic device provided in this application's embodiments is small, facilitating miniaturization and weight reduction of the magnetic device. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a front view of one implementation of the magnetic device provided in the embodiments of this application.

[0018] Figure 2 This is a front view of the magnetic core provided in the embodiments of this application.

[0019] Figure 3 This is a bottom view of one implementation of the magnetic device provided in the embodiments of this application.

[0020] Figure 4 This is a bottom view of the magnetic core provided in the embodiment of this application.

[0021] Figure 5 This is a front view of another implementation of the magnetic device provided in the embodiments of this application.

[0022] Figure 6 This is a bottom view of another implementation of the magnetic device provided in the embodiments of this application.

[0023] The labels in the attached diagram are as follows:

[0024] 100. Magnetic devices;

[0025] 10. Magnetic core; 20. Winding wire; 30. Adhesive component; 40. Positioning post;

[0026] 101, limiting groove; 102, plane; 201, pin. Detailed Implementation

[0027] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figure 1 and Figure 2This application provides a magnetic device 100, including a magnetic core 10 and a winding 20. The magnetic core 10 is provided with two limiting grooves 101, and the winding 20 is arranged around the magnetic core 10. The winding 20 has two leads 201, one of which is confined to one of the limiting grooves 101. This magnetic device 100 cleverly utilizes the limiting grooves 101 on the magnetic core 10 to limit the leads 201 of the winding 20, thereby ensuring the stability and reliability of the winding 20 within the magnetic device 100. Specifically, the design of the magnetic core 10 itself includes the function of limiting the leads 201 of the winding 20, thus eliminating the need for an additional base plate as in existing technologies, and avoiding the inconveniences associated with limiting via a base plate. In actual operation, simply placing the leads 201 of the winding 20 within the limiting groove 101 achieves the limiting effect, without requiring overly precise design of the limiting groove 101, which greatly improves the ease of manufacturing the magnetic device 100. Meanwhile, this design also effectively reduces the risk of pin 201 being scratched, and reduces the risk of connection failure or non-connection when pin 201 is electrically connected to the circuit board. In addition, since the base plate is eliminated, the magnetic device 100 provided in this embodiment is more compact in overall size, which facilitates the miniaturization and weight reduction of the magnetic device 100.

[0030] The magnetic core 10 is made of metal powder, ferrite, or the magnetic core 10 is an outer shell encapsulating amorphous nanocrystals.

[0031] In some embodiments, the winding 20 is a stripped enameled wire.

[0032] The magnetic device 100 may be an inductor.

[0033] It is worth noting that in some embodiments, the limiting groove 101 is a through groove. By setting this type of limiting groove 101, the convenience of setting the pin 201 of the winding 20 in the limiting groove 101 is further improved, and the risk of the pin 201 of the winding 20 being scratched is reduced.

[0034] It is worth noting that in some embodiments, please refer to [link / reference]. Figure 3The limiting groove 101 has a semi-circular cross-section, while the winding 20 has a circular cross-section. The cross-section of the limiting groove 101 refers to the section taken perpendicular to its extension direction; the cross-section of the winding 20 is taken along its radial direction. The semi-circular limiting groove 101 design effectively accommodates the pin 201 of the circular cross-section winding 20, ensuring the pin 201 is securely positioned within the limiting groove 101 while maintaining a certain degree of freedom of movement to accommodate tension in different directions. This design not only improves the stability of the pin 201's fixation but also reduces friction between the pin 201 and the limiting groove 101, further lowering the risk of damage to the pin 201.

[0035] It is worth noting that in some embodiments, the diameter of the cross-section of the limiting groove 101 is larger than the diameter of the cross-section of the winding 20. For example, the diameter of the semi-circular cross-section of the limiting groove 101 is 2.2 mm, and the depth of the limiting groove 101 is half its diameter, which is 1.1 mm. The diameter of the circular cross-section of the winding 20 is 2 mm. This arrangement further enhances the freedom of movement of the winding 20 pin 201 within the limiting groove 101, allowing the pin 201 to better adapt to and disperse tension in various directions, thereby further improving the stability and reliability of the pin 201 fixation.

[0036] It is worth noting that in some embodiments, please refer to [link / reference]. Figure 2 and Figure 4 and combined Figure 1 The magnetic core 10 has a flat surface 102 at one end, located on the outer surface of the magnetic core 10, which optimizes the placement of the magnetic device 100 on the circuit board. Specifically, the magnetic device 100 can be securely mounted on the circuit board via the flat surface 102 of the magnetic core 10, significantly improving the stability of the magnetic device 100 on the circuit board. By ensuring that one end of the magnetic core 10 has a flat surface 102 located on the outer surface of the magnetic core 10, the magnetic device 100 can adhere to the circuit board via this surface 102, thereby greatly reducing the risk of rotation or displacement of the magnetic device 100 during use. This design not only enhances the stability of the magnetic device 100 but also improves the reliability and safety of the entire circuit board.

[0037] It is worth noting that in some embodiments, the magnetic core 10 is a magnetic ring, meaning that the magnetic core 10 has a ring-shaped form. Therefore, when a plane 102 is provided on the magnetic core 10, the appearance of the magnetic core 10 resembles the shape of the letter D (e.g., ...). Figure 2 (As shown). It is understandable that when the magnetic core 10 is provided with a plane 102, the magnetic core 10 may also take on a U-shaped appearance.

[0038] It is worth noting that in some embodiments, such as Figure 3 As shown, the two limiting slots 101 are disposed opposite to one end of the magnetic core 10. Since a flat surface 102 is cleverly provided at one end of the magnetic core 10, this flat surface 102 can be used to mount it onto a circuit board. The limiting slots 101 are designed at the end of the magnetic core 10 with this flat surface 102. This arrangement allows the pins 201 of the winding 20 to be positioned very close to this flat surface 102. This design not only makes it easier and more accurate to mount the pins 201 of the winding 20 onto the circuit board, but also greatly improves the efficiency and stability of the assembly.

[0039] It is worth noting that in some embodiments, the limiting groove 101 extends to the plane 102, the pins 201 of the winding 20 located in the limiting groove 101 extend to the plane 102, and the pins 201 of the winding 20 can also protrude from the plane 102 (e.g., Figure 1 (as shown); and since the two limiting grooves 101 are arranged opposite to each other at one end of the magnetic core 10, when the magnetic device 100 is assembled onto the circuit board through the plane 102 set at one end of the magnetic core 10, it is easier to assemble the pins 201 of the winding 20 onto the circuit board.

[0040] It is worth noting that in some embodiments, such as Figure 1 and Figure 2 As shown, the extending direction of the limiting groove 101 is perpendicular to the plane 102, that is, the limiting groove 101 extends to the plane 102 in a direction perpendicular to the plane 102. This design makes it easier for the pins 201 of the winding 20 to mate with the corresponding interfaces on the circuit board, improving the convenience and efficiency of assembling the magnetic device 100 with the circuit board.

[0041] It is worth noting that in some embodiments, please refer to [link / reference]. Figure 5 and Figure 6 The magnetic device 100 also includes a positioning post 40, which is connected to the plane 102. The positioning post 40 is used for positioning the magnetic device 100 during assembly. The setting of the positioning post 40 further improves the convenience of assembling the magnetic device 100 with the circuit board.

[0042] In some embodiments, the number of positioning posts 40 is two, and the two positioning posts 40 are arranged at intervals. By setting two positioning posts 40, the convenience of assembling the magnetic device 100 with the circuit board is improved.

[0043] It is worth noting that in some embodiments, the magnetic device 100 further includes an adhesive 30, which adhesively attaches the pin 201 to the magnetic core 10. By setting the adhesive 30, the pin 201 of the winding 20 is fixed to the magnetic core 10, thereby improving the stability and reliability of the pin 201 of the winding 20 in the magnetic device 100.

[0044] In some embodiments, the adhesive 30 is an epoxy resin adhesive.

[0045] It is understandable that when assembling the pins 201 of the winding 20 to the circuit board, epoxy resin adhesive can also be applied between the circuit board and the pins 201 of the winding 20.

[0046] This application also provides an embodiment of an electrical device, which includes the magnetic device 100. For the specific structure and function of the magnetic device 100, please refer to the above embodiments; they will not be repeated here.

[0047] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A magnetic device, characterized in that, include: Magnetic core and winding; The magnetic core is provided with two limiting slots, and the winding is arranged around the magnetic core. The winding has two pins, one of which is limited to one of the limiting slots.

2. The magnetic device according to claim 1, characterized in that, The limiting groove is a through groove.

3. The magnetic device according to claim 1 or 2, characterized in that, The cross-section of the limiting groove is semi-circular, and the cross-section of the winding is circular.

4. The magnetic device according to claim 3, characterized in that, The diameter of the cross-section of the limiting groove is larger than the diameter of the cross-section of the winding.

5. The magnetic device according to claim 1, characterized in that, One end of the magnetic core has a plane, which is located on the outer surface of the magnetic core.

6. The magnetic device according to claim 5, characterized in that, The two limiting grooves are disposed opposite to each other at one end of the magnetic core.

7. The magnetic device according to claim 6, characterized in that, The limiting groove extends to the plane.

8. The magnetic device according to claim 5, characterized in that, The magnetic device further includes a positioning post connected to the plane, which is used for positioning the magnetic device during assembly.

9. The magnetic device according to claim 1, characterized in that, The magnetic device also includes an adhesive that bonds the pins to the magnetic core.

10. An electrical device, characterized in that, Including the magnetic device as described in any one of claims 1-9.

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