Transformers and electrical equipment

Abstract

This application provides a transformer and an electrical device including the transformer to improve heat dissipation efficiency. The transformer includes: a housing with a receiving groove; an insulating member disposed at the bottom of the receiving groove and abutting against the bottom wall of the receiving groove; a frame disposed in the receiving groove; a coil assembly wound around the frame; a magnetic core assembly sleeved on the frame and the coil assembly, the magnetic core assembly abutting against the side of the insulating member away from the bottom wall of the receiving groove; a filling colloid filling the receiving groove and wrapping the coil assembly, the magnetic core assembly and the frame, the filling colloid contacting the groove wall of the receiving groove, the filling colloid and the insulating member being configured to conduct the heat generated by the coil assembly and the magnetic core assembly to the housing; a cover plate formed in the receiving groove and detachably connected to the housing; and a conductive member embedded in the cover plate and connected to the coil assembly.

Description

Technical Field

[0001] This application relates to the field of electronic components technology, and in particular to a transformer and electrical equipment. Background Technology

[0002] As a key component in electrical equipment, the performance of transformers directly affects the operating efficiency and reliability of the equipment, such as new energy vehicles. However, traditional transformers have complex structures and poor heat dissipation, making them prone to overheating during high-frequency operation, which in turn reduces the service life of both the transformer and the electrical equipment. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a transformer and electrical equipment to improve heat dissipation efficiency.

[0004] This application provides a transformer, including: The casing has a storage slot; An insulating component is disposed at the bottom of the storage groove and abuts against the bottom wall of the storage groove; A frame is provided in the storage slot; The coil assembly is wound around the frame; A magnetic core assembly is sleeved on the frame and the coil assembly, and the magnetic core assembly abuts against the side of the insulating member away from the bottom wall of the receiving groove; A filling colloid is filled into the storage groove and wraps the coil assembly, the magnetic core assembly and the frame. The filling colloid is in contact with the groove wall of the storage groove. The filling colloid and the insulating member are configured to conduct the heat generated by the coil assembly and the magnetic core assembly to the housing. A cover plate is provided in the storage slot and detachably connected to the housing; and A conductive element is embedded in the cover plate and connected to the coil assembly.

[0005] The aforementioned transformer uses a filling colloid to directly encapsulate the skeleton, coil assembly, and magnetic core assembly located within the housing slot. This allows the filling colloid to directly contact the wall of the housing slot, thereby, in conjunction with the insulating components, directly conducting the heat generated by the coil assembly and magnetic core assembly during operation to the housing. This reduces thermal resistance and prevents the transformer from accumulating heat and reaching high temperatures during high-frequency operation, thus improving the transformer's heat dissipation efficiency and service life.

[0006] In some embodiments, the frame includes a support body, a first partition, a second partition, and a third partition. The support body is located in the receiving groove and has a through groove. The through groove passes through the support body along a first direction. The magnetic core assembly passes through the through groove. The first partition, the second partition, and the third partition are arranged at intervals along the first direction. The first partition, the second partition, and the third partition are all sleeved on the support body and respectively connected to the support body. The coil assembly includes a first coil and a second coil. The first coil is located between the first partition and the second partition and is wound around the support. The second coil is located between the second partition and the third partition and is wound around the support.

[0007] Thus, the above settings optimize the structure of the frame and coil assembly, allowing for a reasonable transformer layout that facilitates disassembly and maintenance. The frame forms surface contact with the filling colloid through the first, second, and third partitions, allowing the heat generated by the coil assembly and core assembly to diffuse through the partitions to the filling colloid, effectively reducing the heat inside the transformer and thus improving heat dissipation efficiency.

[0008] In some embodiments, the magnetic core assembly includes two magnetic core bodies, which are disposed opposite to each other and connected along the first direction. Each magnetic core body includes a magnetic core body, a first magnetic core portion, a second magnetic core portion, and a third magnetic core portion. The magnetic core body is disposed on one side of the frame along the first direction. The first magnetic core portion, the second magnetic core portion, and the third magnetic core portion are disposed at intervals along the second direction and respectively connected to the magnetic core body. The first magnetic core portion and the third magnetic core portion are disposed on both sides of the frame along the second direction. The second magnetic core portion is inserted into the through slot. The first direction and the second direction are perpendicular to each other.

[0009] Thus, through the above arrangement, the magnetic core body, the first magnetic core section, the second magnetic core section, and the third magnetic core section form an E-shaped structure, which facilitates the connection of the two magnetic core bodies during assembly, avoids the use of complex fixing structures to fix the two magnetic core bodies, and simplifies the structure of the magnetic core assembly and the transformer; the second magnetic core section is inserted into the through slot of the frame, which can shorten the magnetic circuit length, reduce high-frequency loss, reduce the heat generated by the transformer during use, and thus improve the heat dissipation effect and service life of the transformer.

[0010] In some embodiments, the first partition plate is provided with a limiting groove on the side opposite to the second partition plate and the third partition plate is provided with a limiting groove on the side opposite to the second partition plate. The two limiting grooves correspond one-to-one with the magnetic core bodies of the two magnetic cores. The limiting grooves are configured to receive and limit the corresponding magnetic core bodies.

[0011] Thus, through the above settings, the limiting slot can limit the corresponding magnetic core body, preventing the two magnetic core bodies from shaking or loosening, thereby ensuring the normal operation and stability of the transformer.

[0012] In some embodiments, the cover plate and the conductive element are integrally injection molded.

[0013] Thus, through the above-mentioned design, the integrated injection molding of the cover plate and the conductive component simplifies the structure, improves the connection strength and stability between the cover plate and the conductive component, and prevents dust and dirt from entering the potting area of ​​the filling colloid through the gap between the two, thereby improving the reliability of the transformer.

[0014] In some embodiments, the cover plate includes a cover plate body and a connecting body. The cover plate body covers the receiving groove, and the connecting body is disposed on the side of the cover plate body facing the insulating member and is perpendicularly connected to the cover plate body. The connecting body is provided with a retaining groove, which is disposed along the circumference of the connecting body and located on the side wall of the connecting body. The housing includes a main body and a side plate. The main body is located on one side of the magnetic core assembly and abuts against the insulating member. The side plate is located on the side of the main body facing the insulating member and surrounds the receiving groove. The side plate and the main body are in contact with the filling colloid respectively. The side plate has an opening groove that communicates with the receiving groove. The opening groove is configured to allow the connector to be inserted, so that the side plate is inserted into the retaining groove and engages with the connector.

[0015] Thus, with the above configuration, when assembling the cover plate and the housing, the connector is inserted into the opening slot, and the side plate is inserted into the retaining slot and snapped into the connector, so that a retaining connection structure is formed between the side plate and the connector, avoiding the use of complex connection structures for fixing and facilitating the disassembly and assembly of the transformer.

[0016] In some embodiments, the cover plate body is provided with a plurality of heat dissipation holes, the plurality of heat dissipation holes are evenly arranged, and each heat dissipation hole penetrates the cover plate body along a first direction.

[0017] Thus, through the above-mentioned setup, multiple heat dissipation holes can increase the heat dissipation area of ​​the transformer, further improving the transformer's heat dissipation efficiency.

[0018] In some embodiments, the cover plate further includes; Two retaining bodies are spaced apart along a second direction on the side of the cover plate facing the insulating member. Each retaining body is connected to the cover plate, and the two retaining bodies are configured to retain the magnetic core assembly.

[0019] Thus, through the above configuration, the two clamping bodies can hold the magnetic core assembly in place, thereby stabilizing and fixing the magnetic core assembly and preventing it from becoming loose or displaced due to shaking, thus improving the stability of the transformer in use.

[0020] In some embodiments, the housing is provided with a plurality of mounting bodies, which are equally spaced around the periphery of the housing.

[0021] Thus, through the above setup, multiple mounting bodies can stably fix the housing to the preset position, ensuring stable operation of the transformer and thereby improving the reliability of the transformer.

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

[0023] In the electrical equipment of this application embodiment, the transformer described above is directly wrapped with a filling colloid to enclose the skeleton, coil group and magnetic core group located in the storage groove, so that the filling colloid is in direct contact with the groove wall of the housing. This, together with the insulating component, directly conducts the heat generated by the coil group and magnetic core group during operation to the housing to reduce thermal resistance, avoid heat accumulation and high temperature of the transformer during high-frequency operation, and thus improve the heat dissipation efficiency and service life of the transformer. Attached Figure Description

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

[0025] Figure 2 for Figure 1 The diagram shown is an exploded view of the transformer's structure.

[0026] Explanation of main component symbols: Transformer 100, Housing 10, Storage Slot 11, Main Body 12, Side Plate 13, Opening Slot 131, Mounting Body 14, Insulating Component 20, Frame 30, Support Body 31, Through Slot 311, First Partition 32, Limiting Slot 321, Second Partition 33, Third Partition 34, Coil Group 40, First Coil 41, Second Coil 42, Magnetic Core Group 50, Magnetic Core Body 51, Magnetic Core Main Body 511, First Magnetic Core Section 512, Second Magnetic Core Section 513, Third Magnetic Core Section 514, Filling Glue 60, Cover Plate Component 70, Cover Plate Body 71, Heat Dissipation Hole 711, Connector 72, Holding Slot 721, Holding Body 73, Conductive Component 80. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0031] Please see Figure 1 and Figure 2 This application provides a transformer 100, which includes a housing 10, an insulating component 20, a frame 30, a coil assembly 40, a magnetic core assembly 50, a filling colloid 60, a cover plate 70, and a conductive component 80, for improving the heat dissipation efficiency of the transformer 100.

[0032] 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 Y-axis direction shown is the third direction. Figure 1 The X-axis directions shown are perpendicular to each other: the first direction, the second direction, and the third direction.

[0033] Please see Figure 1 and Figure 2The housing 10 has a receiving groove 11. An insulating member 20 is located at the bottom of the receiving groove 11 and abuts against the bottom wall of the receiving groove 11. A frame 30 is located in the receiving groove 11. A coil assembly 40 is wound around the frame 30. A magnetic core assembly 50 is sleeved on the frame 30 and the coil assembly 40. The magnetic core assembly 50 abuts against the side of the insulating member 20 away from the bottom wall of the receiving groove 11. A filling colloid 60 fills the receiving groove 11 and wraps the coil assembly 40, the magnetic core assembly 50, and the frame 30. The filling colloid 60 is in contact with the groove wall of the receiving groove 11. The filling colloid 60 and the insulating member 20 are configured to conduct the heat generated by the coil assembly 40 and the magnetic core assembly 50 to the housing 10. A cover plate 70 is opened in the receiving groove 11 and is detachably connected to the housing 10. A conductive member 80 is embedded in the cover plate 70 and connected to the coil assembly 40. For example, the housing 10 can be made of aluminum, the insulating part 20 can be a ceramic sheet, the filling colloid 60 can be a potting compound, and the cover plate 70 can be made of plastic.

[0034] The aforementioned transformer 100 directly wraps the skeleton 30, coil group 40 and magnetic core group 50 located in the storage groove 11 with the filling colloid 60, so that the filling colloid 60 is in direct contact with the groove wall of the storage groove 11 of the housing 10. In this way, together with the insulating component 20, the heat generated by the coil group 40 and magnetic core group 50 during operation is directly conducted to the housing 10 to reduce thermal resistance, avoid heat accumulation and high temperature of the transformer 100 during high frequency operation, and thus improve the heat dissipation efficiency and service life of the transformer 100.

[0035] Please see Figure 2 In some embodiments, the frame 30 includes a support body 31, a first partition 32, a second partition 33, and a third partition 34. The support body 31 is located in the receiving groove 11 and has a through groove 311 that extends through the support body 31 along a first direction. The magnetic core assembly 50 passes through the through groove 311. The first partition 32, the second partition 33, and the third partition 34 are arranged sequentially at intervals along the first direction. The first partition 32, the second partition 33, and the third partition 34 are all sleeved on the support body 31 and connected to the support body 31 respectively. The coil assembly 40 includes a first coil 41 and a second coil 42. The first coil 41 is located between the first partition 32 and the second partition 33 and is wound around the support body 31. The second coil 42 is located between the second partition 33 and the third partition 34 and is wound around the support body 31.

[0036] Thus, through the above-mentioned arrangement, the structure of the frame 30 and the coil group 40 can be optimized, making the transformer 100 reasonably arranged and facilitating the disassembly, assembly, and maintenance of the transformer 100. The frame 30 forms surface contact with the filling colloid 60 through the first partition 32, the second partition 33, and the third partition 34, so that the heat generated by the coil group 40 and the magnetic core group 50 can be diffused to the filling colloid 60 through the partitions, effectively reducing the heat inside the transformer 100 and thereby improving the heat dissipation efficiency.

[0037] Please see Figure 2 In some embodiments, the magnetic core assembly 50 includes two magnetic cores 51, which are arranged opposite to each other and connected along a first direction. Each magnetic core 51 includes a core body 511, a first core portion 512, a second core portion 513, and a third core portion 514. The core body 511 is located on one side of the frame 30 along the first direction. The first core portion 512, the second core portion 513, and the third core portion 514 are spaced apart along a second direction and respectively connected to the core body 511. The first core portion 512 and the third core portion 514 are located on both sides of the frame 30 along the second direction. The second core portion 513 is inserted into the through groove 311. The end of any one magnetic core 51 facing the other magnetic core 51 is pre-coated with an adhesive, and the two magnetic cores 51 are connected by the adhesive.

[0038] Thus, through the above arrangement, the magnetic core body 511, the first magnetic core portion 512, the second magnetic core portion 513, and the third magnetic core portion 514 form an E-shaped structure, which facilitates the connection of the two magnetic core bodies 51 during assembly, avoids the use of complex fixing structures to fix the two magnetic core bodies 51, and simplifies the structure of the magnetic core assembly 50 and the transformer 100; the second magnetic core portion 513 is inserted into the through slot 311 of the frame 30, which can shorten the magnetic circuit length, reduce high-frequency loss, reduce the heat generated by the transformer 100 during use, and thus improve the heat dissipation effect and service life of the transformer 100.

[0039] Please see Figure 2 In some embodiments, the first partition 32 is provided with a limiting groove 321 on the side opposite to the second partition 33 and the third partition 34 is provided with a limiting groove 321 on the side opposite to the second partition 33. The two limiting grooves 321 correspond one-to-one with the magnetic core bodies 511 of the two magnetic core bodies 51. The limiting grooves 321 are configured to receive and limit the corresponding magnetic core bodies 511.

[0040] Thus, through the above settings, the limiting groove 321 can limit the corresponding magnetic core body 511, preventing the two magnetic core bodies 51 from shaking or loosening, thereby ensuring the normal operation and stability of the transformer 100.

[0041] In some embodiments, the cover plate 70 and the conductive element 80 are integrally injection molded.

[0042] Thus, through the above-mentioned arrangement, the integrated injection molding of the cover plate 70 and the conductive component 80 simplifies the structure, improves the connection strength and stability of the cover plate 70 and the conductive component 80, and prevents dust and dirt from entering the potting area of ​​the filling colloid 60 through the gap between the two, thereby improving the reliability of the transformer 100.

[0043] Please see Figure 1 and Figure 2 In some embodiments, the cover plate 70 includes a cover plate body 71 and a connector 72. The cover plate body 71 covers the receiving groove 11. The connector 72 is located on the side of the cover plate body 71 facing the insulating member 20 and is perpendicularly connected to the cover plate body 71. The connector 72 has a retaining groove 721, which is arranged circumferentially along the connector 72 and located on the side wall of the connector 72. The housing 10 includes a main body 12 and a side plate 13. The main body 12 is located on one side of the magnetic core assembly 50 and abuts against the insulating member 20. The side plate 13 is located on the side of the main body 12 facing the insulating member 20 and surrounds the receiving groove 11. The side plate 13 and the main body 12 are in contact with the filling colloid 60 respectively. The side plate 13 has an opening groove 131, which communicates with the receiving groove 11. The opening groove 131 is configured to allow the connector 72 to be inserted, so that the side plate 13 is inserted into the retaining groove 721 and engages with the connector 72.

[0044] Thus, with the above arrangement, when the cover plate 70 and the housing 10 are assembled, the connector 72 is inserted into the opening slot 131, and the side plate 13 is inserted into the retaining slot 721 and engaged with the connector 72, so that a retaining connection structure is formed between the side plate 13 and the connector 72, avoiding the use of a complex connection structure for fixing, and facilitating the disassembly and assembly of the transformer 100.

[0045] Please see Figure 1 In some embodiments, the cover plate 71 is provided with a plurality of heat dissipation holes 711, which are evenly arranged and each heat dissipation hole 711 penetrates the cover plate 71 along a first direction.

[0046] Thus, through the above-mentioned arrangement, the multiple heat dissipation holes 711 can increase the heat dissipation area of ​​the transformer 100, thereby further improving the heat dissipation efficiency of the transformer 100.

[0047] Please see Figure 2 In some embodiments, the cover plate 70 further includes two retaining bodies 73, which are spaced apart along a second direction on the side of the cover plate 71 facing the insulating member 20. Each retaining body 73 is connected to the cover plate 71, and the two retaining bodies 73 are configured to retain the magnetic core assembly 50.

[0048] Thus, through the above-mentioned arrangement, the two holding bodies 73 can hold the magnetic core assembly 50 to stabilize and fix the magnetic core assembly 50, preventing the magnetic core assembly 50 from becoming loose or displaced due to shaking, thereby improving the stability of the transformer 100 in use.

[0049] Please see Figure 1 In some embodiments, the housing 10 is provided with a plurality of mounting bodies 14, which are equally spaced around the periphery of the housing 10 and are configured to mount the housing 10 to a preset position.

[0050] Thus, through the above-mentioned setup, multiple mounting bodies 14 can stably fix the housing 10 to a preset position, ensuring the stable operation of the transformer 100 and thereby improving the reliability of the transformer 100.

[0051] This application embodiment also provides an electrical device (not shown in the figure), which includes the transformer 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.

[0052] In the electrical equipment of this application embodiment, the transformer 100 directly wraps the skeleton 30, coil group 40 and magnetic core group 50 located in the storage groove 11 with the filling colloid 60, so that the filling colloid 60 is in direct contact with the groove wall of the storage groove 11 of the housing 10. In this way, together with the insulating member 20, the heat generated by the coil group 40 and magnetic core group 50 during operation is directly conducted to the housing 10 to reduce thermal resistance, avoid heat accumulation and high temperature of the transformer 100 during high frequency operation, and thus improve the heat dissipation efficiency and service life of the transformer 100.

[0053] 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. A transformer, characterized in that, include: The casing has a storage slot; An insulating component is disposed at the bottom of the storage groove and abuts against the bottom wall of the storage groove; A frame is provided in the storage slot; The coil assembly is wound around the frame; A magnetic core assembly is sleeved on the frame and the coil assembly, and the magnetic core assembly abuts against the side of the insulating member away from the bottom wall of the receiving groove; A filling colloid is filled into the storage groove and wraps the coil assembly, the magnetic core assembly and the frame. The filling colloid is in contact with the groove wall of the storage groove. The filling colloid and the insulating member are configured to conduct the heat generated by the coil assembly and the magnetic core assembly to the housing. A cover plate is provided in the storage slot and detachably connected to the housing; and A conductive element is embedded in the cover plate and connected to the coil assembly.

2. The transformer as described in claim 1, characterized in that, The frame includes a support body, a first partition, a second partition, and a third partition. The support body is located in the storage slot and has a through slot. The through slot passes through the support body along a first direction. The magnetic core assembly passes through the through slot. The first partition, the second partition, and the third partition are arranged at intervals along the first direction. The first partition, the second partition, and the third partition are all sleeved on the support body and connected to the support body respectively. The coil assembly includes a first coil and a second coil. The first coil is located between the first partition and the second partition and is wound around the support. The second coil is located between the second partition and the third partition and is wound around the support.

3. The transformer as described in claim 2, characterized in that, The magnetic core assembly includes two magnetic core bodies, which are arranged opposite to each other and connected along the first direction. Each magnetic core body includes a magnetic core body, a first magnetic core portion, a second magnetic core portion, and a third magnetic core portion. The magnetic core body is disposed on one side of the frame along the first direction. The first magnetic core portion, the second magnetic core portion, and the third magnetic core portion are spaced apart along the second direction and respectively connected to the magnetic core body. The first magnetic core portion and the third magnetic core portion are disposed on both sides of the frame along the second direction. The second magnetic core portion is inserted into the through slot. The first direction and the second direction are perpendicular to each other.

4. The transformer as described in claim 3, characterized in that, The first partition plate is provided with a limiting groove on the side opposite to the second partition plate and the third partition plate is provided with a limiting groove on the side opposite to the second partition plate. The two limiting grooves correspond one-to-one with the magnetic core bodies of the two magnetic cores. The limiting grooves are configured to receive and limit the corresponding magnetic core bodies.

5. The transformer as described in claim 1, characterized in that, The cover plate and the conductive component are integrally injection molded.

6. The transformer as described in claim 1, characterized in that, The cover plate includes a cover plate body and a connecting body. The cover plate body covers the storage groove. The connecting body is located on the side of the cover plate body facing the insulating member and is perpendicularly connected to the cover plate body. The connecting body is provided with a retaining groove, which is arranged along the circumference of the connecting body and located on the side wall of the connecting body. The housing includes a main body and a side plate. The main body is located on one side of the magnetic core assembly and abuts against the insulating member. The side plate is located on the side of the main body facing the insulating member and surrounds the receiving groove. The side plate and the main body are in contact with the filling colloid respectively. The side plate has an opening groove that communicates with the receiving groove. The opening groove is configured to allow the connector to be inserted, so that the side plate is inserted into the retaining groove and engages with the connector.

7. The transformer as described in claim 6, characterized in that, The cover plate is provided with a plurality of heat dissipation holes, which are evenly arranged and each heat dissipation hole penetrates the cover plate along a first direction.

8. The transformer as described in claim 6, characterized in that, The cover plate also includes; Two retaining bodies are spaced apart along a second direction on the side of the cover plate facing the insulating member. Each retaining body is connected to the cover plate, and the two retaining bodies are configured to retain the magnetic core assembly.

9. The transformer as described in claim 6, characterized in that, The housing is provided with a plurality of mounting bodies, which are equally spaced around the periphery of the housing.

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

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