Inductors and electrical equipment

Abstract

This application relates to the field of electronic components technology, specifically providing an inductor and an electrical device including the inductor to improve heat dissipation efficiency and usage flexibility. The inductor includes: a frame, comprising a support member and a connector, the support member and the connector being detachably connected; the support member having a receiving groove on the side facing the connector, and the connector having a receiving groove on the side facing the support member; the receiving groove and the receiving groove being connected to form a storage groove; both the support member and the connector having heat dissipation grooves connected to the storage groove; a coil assembly wound around the support member and the connector; a magnetic core assembly, including multiple first magnetic cores and multiple air gap plates, the multiple first magnetic cores being located in the storage groove and sequentially arranged along the extension direction of the storage groove; each air gap plate being inserted between two adjacent first magnetic cores; a thermally conductive film attached to the side of the coil assembly facing away from the support member; and a conductive element embedded in the frame and connected to the coil assembly.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, and in particular to an inductor and an electrical device. Background Technology

[0002] Inductors, as a key electronic component, are widely used in electrical equipment such as switching power supplies and inverters. However, the traditional inductor layout is unreasonable, resulting in poor heat dissipation efficiency, easy overheating and affecting inductor performance. At the same time, it is difficult to adjust the inductance and leakage inductance, reducing the flexibility of use. Utility Model Content

[0003] In view of the above situation, it is necessary to provide an inductor and electrical equipment to improve heat dissipation efficiency and usage flexibility.

[0004] This application provides an inductor, including: The frame includes a support member and a connector, the support member and the connector are detachably connected, the support member has a receiving groove on the side facing the connector, the connector has a receiving groove on the side facing the support member, the receiving groove and the receiving groove are connected to form a storage groove, and both the support member and the connector have heat dissipation grooves, the heat dissipation grooves are connected to the storage groove. A coil assembly is wound around the support member and the connector; The magnetic core assembly includes multiple first magnetic core components and multiple air gap plates. The multiple first magnetic core components are located in the receiving groove and are arranged sequentially along the extending direction of the receiving groove. Each air gap plate is inserted between two adjacent first magnetic core components. A thermally conductive adhesive sheet is attached to the side of the coil assembly facing away from the support member; and A conductive element is embedded in the frame and connected to the coil assembly.

[0005] The aforementioned inductor forms a detachable, modular structure through support components and connectors. This allows for easy assembly and disassembly of the frame to accommodate air gap plates between two adjacent first magnetic core components, enabling flexible adjustment of inductance and leakage inductance. Simultaneously, the combination of thermally conductive film and heat sink enhances the inductor's heat dissipation efficiency, thereby rapidly reducing the heat generated by the magnetic core assembly and coil assembly. This achieves both increased flexibility in use and improved heat dissipation efficiency.

[0006] In some embodiments, the receiving groove includes a first groove and a second groove that are connected to each other, the second groove being adjacent to the connector relative to the first groove, and the cross-section of the first groove being smaller than the cross-section of the second groove in a first direction; The connector has a retaining body at one end facing the support member. The retaining body is adapted to the second slot and is configured to be inserted into the second slot so that the connector and the support member are engaged and connected.

[0007] Thus, through the above configuration, the first and second slots form a stepped slot structure, which allows the retaining body to cooperate with the receiving slot to achieve quick assembly and disassembly of the frame. This facilitates the rapid insertion and placement of the air gap plate, thereby improving the flexibility of use and reducing assembly and disassembly time.

[0008] In some embodiments, the support member is provided with a placement groove, which is connected to the end of the receiving groove away from the connector; the connector is provided with a mounting groove, which is connected to the end of the receiving groove away from the support member. The magnetic core assembly further includes two second magnetic core components, one of which is disposed in the placement groove and abuts against the groove wall of the placement groove and the first magnetic core component adjacent to the placement groove, and the other second magnetic core component is disposed in the mounting groove and abuts against the groove wall of the mounting groove and the first magnetic core component adjacent to the mounting groove.

[0009] Thus, through the above arrangement, the two second magnetic core components are fixed to the support and the connector respectively through the placement groove and the mounting groove, so as to abut against the corresponding first magnetic core component, so that the magnetic core assembly forms a closed magnetic circuit. At the same time, the air gap between the two adjacent first magnetic core components is subjected to uniform force, reducing magnetic circuit magnetic resistance fluctuation and improving the stability of use.

[0010] In some embodiments, the skeleton further includes two limiting members, which are arranged opposite to each other and abut against each other along a second direction. One of the limiting members is connected to the support member, and the other limiting member is connected to the connector. Both limiting members are provided with limiting grooves, and the two limiting grooves are connected to each other. The magnetic core assembly also includes a third magnetic core component, which is disposed in the two connected limiting slots and is respectively engaged with the two limiting components.

[0011] Thus, by placing a third magnetic core in the two connected limiting slots, the magnetic circuit of the inductor can be optimized. In addition, by limiting the third magnetic core in the limiting slots, slippage or loosening of the third magnetic core can be prevented, thereby improving the stability of use.

[0012] In some embodiments, the third magnetic core includes; Multiple magnetic cores are arranged sequentially along the extension direction of the limiting groove; Multiple air gap bodies, each of which is disposed between two adjacent magnetic core bodies.

[0013] Thus, through the above settings, the air gap of the third magnetic core can be independently adjusted, thereby increasing the overall inductance adjustment range and improving the flexibility of the inductor.

[0014] In some embodiments, the inductor further includes: A heat dissipation pad is attached to the side of the third magnetic core that is away from the limiting member.

[0015] Thus, through the above configuration, the heat dissipation film can dissipate the heat generated by the third magnetic core, thereby increasing the heat dissipation area of ​​the inductor and improving the overall heat dissipation efficiency of the inductor.

[0016] In some embodiments, the skeleton further includes: Two partition members are provided, one of which is sleeved on and connected to the support member, and the other of which is sleeved on and connected to the connector member. A limiting space is formed between the two partition members, and the limiting space is used to accommodate and limit the coil assembly.

[0017] Thus, through the above settings, the limiting space can limit the coil assembly, allowing the partition to protect the coil assembly and prevent it from slipping or deforming, thereby improving its stability and reliability.

[0018] In some embodiments, the skeleton further includes: A plurality of mounting components, some of which are connected to the support member and others are connected to the connector member, the mounting components being configured to mount the support member and the connector member to a preset position.

[0019] Thus, through the above setup, multiple mounting components can stably fix the frame to the preset position, ensuring the stable operation of the inductor and thereby improving the reliability of the inductor.

[0020] In some embodiments, the conductive element and the skeleton are integrally injection molded.

[0021] Thus, by adopting the above configuration, the integral injection molding of the conductive component and the frame simplifies the structure, improves the connection strength and stability between the conductive component and the frame, and prevents dust and dirt from entering the inductor through the gap between the two, thereby improving the reliability of the inductor.

[0022] This application embodiment also provides an electrical device, including: The aforementioned inductor.

[0023] The electrical equipment of this application embodiment has an inductor that forms a detachable split structure through support members and connectors. This facilitates the disassembly and assembly of the frame according to usage requirements to insert air gap plates between two adjacent first magnetic core members, thereby flexibly adjusting the inductance and leakage inductance. At the same time, the thermal conductive film and heat dissipation groove work together to enhance the heat dissipation efficiency of the inductor, thereby quickly reducing the heat generated by the magnetic core assembly and coil assembly, and thus improving heat dissipation efficiency while improving usage flexibility. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the inductor provided in an embodiment of this application.

[0025] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the inductor along the AA direction.

[0026] Figure 3 for Figure 1 The diagram shown is an exploded view of the inductor.

[0027] Explanation of main component symbols: Inductor 100, frame 10, support 11, receiving slot 111, first slot 112, second slot 113, placement slot 114, connector 12, receiving slot 121, holding body 122, mounting slot 123, storage slot 13, heat dissipation slot 14, limiting member 15, limiting slot 151, partition 16, limiting space 161, mounting member 17, coil group 20, magnetic core group 30, first magnetic core 31, air gap plate 32, second magnetic core 33, third magnetic core 34, magnetic core body 341, air gap body 342, thermally conductive film 40, conductive component 50, heat dissipation film 60. Detailed Implementation

[0028] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0032] Please see Figure 1 and Figure 2 This application provides an inductor 100, which includes a frame 10, a coil assembly 20, a magnetic core assembly 30, a thermally conductive film 40, and a conductive component 50, which can provide heat dissipation efficiency and flexibility of use.

[0033] To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system has been established in some of the accompanying drawings, with the first direction being... Figure 1 The Z-axis direction is shown, and the second direction is... Figure 1 The X-axis direction shown is the third direction. Figure 1 The Y-axis direction shown is perpendicular to each other in the first, second, and third directions.

[0034] Please see Figure 1 , Figure 2 and Figure 3The frame 10 includes a support member 11 and a connector 12, which are detachably connected. The support member 11 has a receiving groove 111 on the side facing the connector 12, and the connector 12 has a receiving groove 121 on the side facing the support member 11. The receiving groove 111 and the receiving groove 121 are connected to form a storage groove 13. Both the support member 11 and the connector 12 have heat dissipation grooves 14, which are connected to the storage groove 13. The coil assembly 20 is wound around the support member 11 and the connector 12. The magnetic core assembly 30 includes multiple first magnetic cores 31 and multiple air gap plates 32. The multiple first magnetic cores 31 are located in the storage groove 13 and arranged sequentially along the extending direction of the storage groove 13. Each air gap plate 32 is inserted between two adjacent first magnetic cores 31. A thermally conductive adhesive sheet 40 is attached to the side of the coil assembly 20 away from the support member 11. A conductive element 50 is embedded in the frame 10 and connected to the coil assembly 20. For example, the air gap 32 can be a ceramic sheet, the coil group 20 can be made of aluminum, the conductive element 50 is made of aluminum at one end adjacent to the coil group 20, and the thermally conductive film 40 can be a thermally conductive silicone film.

[0035] The aforementioned inductor 100 forms a detachable, modular structure through the support member 11 and the connector 12. This facilitates the disassembly and assembly of the frame 10 according to usage requirements, allowing the insertion of an air gap plate 32 between two adjacent first magnetic core members 31 to flexibly adjust the inductance and leakage inductance. At the same time, the thermal conductive film 40 and the heat dissipation groove 14 work together to enhance the heat dissipation efficiency of the inductor 100, thereby quickly reducing the heat generated by the magnetic core assembly 30 and the coil assembly 20, thus improving both the flexibility of use and the heat dissipation efficiency.

[0036] Please see Figure 2 and Figure 3 In some embodiments, the receiving groove 111 includes a first groove 112 and a second groove 113 that are connected to each other. The second groove 113 is adjacent to the connector 12 relative to the first groove 112. In a first direction, the cross-section of the first groove 112 is smaller than the cross-section of the second groove 113. The connector 12 has a retaining body 122 at one end facing the support member 11. The retaining body 122 is adapted to the second groove 113 and is configured to be inserted into the second groove 113 so that the connector 12 is engaged with the support member 11.

[0037] Thus, through the above arrangement, the first groove 112 and the second groove 113 form a stepped groove structure, which allows the retaining body 122 to cooperate with the receiving groove 111 to achieve quick assembly and disassembly of the frame 10, which is conducive to the quick insertion and placement of the air gap plate 32, thereby improving the flexibility of use and reducing the assembly and disassembly time.

[0038] Please see Figure 3In some embodiments, the support member 11 is provided with a placement groove 114, which is connected to the end of the receiving groove 111 away from the connector 12. The connector 12 is provided with a mounting groove 123, which is connected to the end of the receiving groove 121 away from the support member 11. The magnetic core assembly 30 also includes two second magnetic cores 33. One second magnetic core 33 is disposed in the placement groove 114 and abuts against the groove wall of the placement groove 114 and the first magnetic core 31 adjacent to the placement groove 114, respectively. The other second magnetic core 33 is disposed in the mounting groove 123 and abuts against the groove wall of the mounting groove 123 and the first magnetic core 31 adjacent to the mounting groove 123, respectively.

[0039] Thus, through the above arrangement, the two second magnetic cores 33 are fixed to the support 11 and the connector 12 respectively through the placement groove 114 and the mounting groove 123 to abut against the corresponding first magnetic core 31, so that the magnetic core group 30 forms a closed magnetic circuit. At the same time, the air gap 32 located between the two adjacent first magnetic cores 31 is subjected to uniform force, reducing magnetic circuit magnetic resistance fluctuations and improving the stability of use.

[0040] Please see Figure 2 and Figure 3 In some embodiments, the skeleton 10 further includes two limiting members 15, which are arranged opposite to each other along a second direction and abut against each other. One limiting member 15 is connected to the support member 11, and the other limiting member 15 is connected to the connector 12. Both limiting members are provided with limiting grooves 151, and the two limiting grooves 151 are connected. The magnetic core assembly 30 also includes a third magnetic core member 34, which is disposed in the two connected limiting grooves 151 and is respectively engaged with the two limiting members 15.

[0041] Thus, by placing the third magnetic core 34 in the two connected limiting slots 151, the magnetic circuit of the inductor 100 can be optimized. In addition, by limiting the third magnetic core 34 in the limiting slots 151, slippage or loosening of the third magnetic core 34 can be prevented, thereby improving the stability of use.

[0042] Please see Figure 2 and Figure 3 In some embodiments, the third magnetic core 34 includes a plurality of magnetic cores 341 and a plurality of air gaps 342. The plurality of magnetic cores 341 are arranged sequentially along the extending direction of the limiting groove 151, and each air gap 342 is disposed between two adjacent magnetic cores 341. Exemplarily, the air gap 342 may be a ceramic sheet.

[0043] Thus, through the above settings, the air gap of the third magnetic core 34 can be independently adjusted, thereby improving the overall inductance adjustment range and thus improving the flexibility of the inductor 100.

[0044] Please see Figure 1and Figure 2 In some embodiments, the inductor 100 further includes a heat-dissipating sheet 60, which is attached to the side of the third magnetic core 34 facing away from the limiting member 15. Exemplarily, the heat-dissipating sheet 60 may be a thermally conductive silicone sheet.

[0045] Thus, through the above configuration, the heat dissipation sheet 60 can dissipate the heat generated by the third magnetic core 34, thereby increasing the heat dissipation area of ​​the inductor 100 and improving the overall heat dissipation efficiency of the inductor 100.

[0046] Please see Figure 3 In some embodiments, the frame 10 further includes two partition members 16. One partition member 16 is sleeved on and connected to the support member 11, and the other partition member 16 is sleeved on and connected to the connector 12. A limiting space 161 is formed between the two partition members 16, and the limiting space 161 is used to accommodate and limit the coil assembly 20.

[0047] Thus, through the above settings, the limiting space 161 can limit the coil group 20, so that the partition 16 protects the coil group 20 and prevents the coil group 20 from being stepped on or deformed, thereby improving the stability and reliability of use.

[0048] Please see Figure 3 In some embodiments, the frame 10 further includes a plurality of mounting members 17, some of which are connected to the support member 11 and others are connected to the connector 12. The mounting members 17 are configured to mount the support member 11 and the connector 12 to a preset position.

[0049] Thus, through the above-mentioned setup, multiple mounting components 17 can stably fix the frame 10 to the preset position, ensuring the stable operation of the inductor 100 and thereby improving the reliability of the inductor 100.

[0050] In some embodiments, the conductive element 50 and the skeleton 10 are integrally injection molded.

[0051] Thus, through the above-mentioned arrangement, the integral injection molding of the conductive component 50 and the frame 10 can simplify the structure, improve the connection strength and connection stability of the conductive component 50 and the frame 10, and at the same time prevent the formation of assembly gaps between the two, which would cause dust and dirt to enter the interior of the inductor 100 along the gaps, thereby improving the reliability of the inductor 100.

[0052] This application embodiment also provides an electrical device, which includes the inductor 100 described above. The electrical device can be a new energy vehicle, charger, server, power supply, inverter, frequency converter, driver, computer, television, air conditioner, etc., and this application embodiment does not specifically limit it to such devices.

[0053] In the electrical equipment of this application embodiment, the inductor 100 forms a detachable split structure through the support member 11 and the connector 12. This facilitates the disassembly and assembly of the frame 10 according to usage requirements to insert the air gap plate 32 between two adjacent first magnetic core members 31, so as to flexibly adjust the inductance and leakage inductance. At the same time, the thermal conductive film 40 and the heat dissipation groove 14 work together to enhance the heat dissipation efficiency of the inductor 100, thereby quickly reducing the heat generated by the magnetic core group 30 and the coil group 20, and thus improving heat dissipation efficiency while improving the flexibility of use.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application 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 solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An inductor, characterized in that, include: The frame includes a support member and a connector, the support member and the connector are detachably connected, the support member has a receiving groove on the side facing the connector, the connector has a receiving groove on the side facing the support member, the receiving groove and the receiving groove are connected to form a storage groove, and both the support member and the connector have heat dissipation grooves, the heat dissipation grooves are connected to the storage groove. A coil assembly is wound around the support member and the connector; The magnetic core assembly includes multiple first magnetic core components and multiple air gap plates. The multiple first magnetic core components are located in the receiving groove and are arranged sequentially along the extending direction of the receiving groove. Each air gap plate is inserted between two adjacent first magnetic core components. A thermally conductive adhesive sheet is attached to the side of the coil assembly facing away from the support member; and A conductive element is embedded in the frame and connected to the coil assembly.

2. The inductor as described in claim 1, characterized in that, The receiving groove includes a first groove and a second groove that are connected to each other. The second groove is adjacent to the connector relative to the first groove. In a first direction, the cross-section of the first groove is smaller than the cross-section of the second groove. The connector has a retaining body at one end facing the support member. The retaining body is adapted to the second slot and is configured to be inserted into the second slot so that the connector and the support member are engaged and connected.

3. The inductor as described in claim 1, characterized in that, The support member is provided with a placement groove, which is connected to the end of the receiving groove away from the connector. The connector is provided with an installation groove, which is connected to the end of the receiving groove away from the support member. The magnetic core assembly further includes two second magnetic core components, one of which is disposed in the placement groove and abuts against the groove wall of the placement groove and the first magnetic core component adjacent to the placement groove, and the other second magnetic core component is disposed in the mounting groove and abuts against the groove wall of the mounting groove and the first magnetic core component adjacent to the mounting groove.

4. The inductor as described in claim 1, characterized in that, The frame also includes two limiting members, which are arranged opposite to each other and abut against each other along the second direction. One of the limiting members is connected to the support member, and the other limiting member is connected to the connecting member. Both limiting members are provided with limiting grooves, and the two limiting grooves are connected to each other. The magnetic core assembly also includes a third magnetic core component, which is disposed in the two connected limiting slots and is respectively engaged with the two limiting components.

5. The inductor as described in claim 4, characterized in that, The third magnetic core component includes; Multiple magnetic cores are arranged sequentially along the extension direction of the limiting groove; Multiple air gap bodies, each of which is disposed between two adjacent magnetic core bodies.

6. The inductor as described in claim 4, characterized in that, The inductor also includes: A heat dissipation pad is attached to the side of the third magnetic core that is away from the limiting member.

7. The inductor as claimed in claim 1, characterized in that, The skeleton also includes: Two partition members are provided, one of which is sleeved on and connected to the support member, and the other of which is sleeved on and connected to the connector member. A limiting space is formed between the two partition members, and the limiting space is used to accommodate and limit the coil assembly.

8. The inductor as claimed in claim 1, characterized in that, The skeleton also includes: A plurality of mounting components, some of which are connected to the support member and others are connected to the connector member, the mounting components being configured to mount the support member and the connector member to a preset position.

9. The inductor as claimed in claim 1, characterized in that, The conductive component and the skeleton are integrally injection molded.

10. An electrical appliance, characterized in that, include: The inductor as described in any one of claims 1 to 9.

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