Magnetic part

Abstract

The utility model relates to the field of electrical parts, and provides a magnetic part which comprises a plurality of magnetic core sections and a winding, the plurality of magnetic core sections are connected through an elastic material to form a magnetic core, the magnetic core is provided with at least one annular loop, and the annular loop is wound on the magnetic core. The magnetic core is made of hard materials, and the elastic materials can be used for connecting the segments of the magnetic core. When the magnetic core expands due to heating, the elastic material can absorb stress generated by expansion of the magnetic core through deformation of the elastic material, and therefore the risk that the magnetic core is broken is reduced. The sections of the magnetic core made of the hard material are connected through the elastic material, so that when the magnetic core expands due to heating, stress caused by partial expansion can be absorbed through deformation of the elastic material. The magnetic core can be protected in a high-temperature environment, and the service life of the magnetic core is prolonged. And the manufacturing flexibility can be improved by connecting the segments of the magnetic core through elastic materials. This allows easier adjustment and adaptation to hard material magnetic cores of different shapes and sizes in design.

Description

Technical Field

[0001] The utility model relates to the field of electrical components, in particular to a magnetic component. Background Art

[0002] In various applications of power electronic conversion, such as communications, energy storage, photovoltaics, electric vehicles, etc., magnetic components are an indispensable and important component. Magnetic components generally refer to electrical components such as transformers and inductors. Magnetic components are usually composed of a core, a skeleton and a winding.

[0003] In the prior art, magnetic parts are gradually being miniaturized, and magnetic parts themselves tend to generate heat, so it is more difficult for miniaturized magnetic parts to dissipate heat, and the heat is more concentrated. The core of a magnetic part is usually made of ferrite material, which is very brittle. When heated, ferrite is easily deformed and broken, thus causing damage to the magnetic part. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a magnetic component to reduce the risk of the magnetic core being broken due to heat.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a magnetic component, comprising:

[0006] A magnetic core segment, wherein a plurality of the magnetic core segments are provided, and the plurality of the magnetic core segments are connected by elastic material to form a magnetic core, and the magnetic core has at least one annular loop;

[0007] The winding is wound on the magnetic core.

[0008] In an optional embodiment of the present invention, the winding includes a primary winding and a secondary winding.

[0009] In an optional embodiment of the present invention, the magnetic core includes a winding post and a back, and the winding post and the back are respectively composed of different magnetic core segments.

[0010] In an optional embodiment of the present invention, each of the primary winding and the secondary winding comprises at least two turns of continuously wound conducting wire, and the primary winding and the secondary winding are arranged at intervals along the length direction of the winding column.

[0011] In an optional embodiment of the present invention, the winding column includes at least two magnetic core segments.

[0012] In an optional embodiment of the present invention, the number of the primary windings is the same as the number of the secondary windings.

[0013] In an optional embodiment of the present invention, two primary windings and one secondary winding are wound on the same winding pole, and one secondary winding is arranged between the two primary windings.

[0014] In an optional embodiment of the present invention, the same primary winding or the same secondary winding is wound on at least two of the magnetic core segments.

[0015] In an optional embodiment of the present invention, the winding column is composed of two magnetic core segments, the two primary windings are wound on different magnetic core segments, and the secondary winding is wound on the two magnetic core segments at the same time.

[0016] In an optional embodiment of the present invention, the primary winding and the secondary winding are respectively wound on different magnetic core segments.

[0017] In an optional embodiment of the present invention, the number of the magnetic core segments of the same winding pole is the same as the number of the primary windings thereon plus the number of the secondary windings.

[0018] In an optional embodiment of the present invention, two backs are provided, and at least one of the backs is composed of at least two magnetic core segments.

[0019] In an optional embodiment of the present invention, two winding poles are provided.

[0020] In an optional embodiment of the present invention, the primary winding and the secondary winding on the two winding poles are arranged in the same or opposite order in the length direction of the winding pole.

[0021] In an optional embodiment of the present invention, the elastic material is elastic soft glue.

[0022] The utility model provides a magnetic component, wherein the magnetic core is a hard material, and the elastic material can be used to connect the various segments of the magnetic core. When the magnetic core expands due to heat, the elastic material can absorb the stress generated by the expansion of the magnetic core through its own deformation, thereby reducing the risk of the magnetic core breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a circuit topology diagram in the prior art;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of a magnetic component in the prior art;

[0026] Figure 3 It is a schematic diagram of the inductor structure of an E-shaped magnetic core in the prior art;

[0027] Figure 4 It is a schematic diagram of the transformer structure of an E-shaped magnetic core in the prior art;

[0028] Figure 5 It is a schematic diagram of the inductor structure of a U-shaped magnetic core in the prior art;

[0029] Figure 6 It is a schematic diagram of the transformer structure of a U-shaped magnetic core in the prior art;

[0030] Figure 7 This is a schematic diagram of the structure of a magnetic component in a specific embodiment of the utility model;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of a magnetic core in a specific embodiment of the utility model;

[0032] Fig. 9 It is a schematic diagram of the magnetic component structure of a two-section winding column in a specific embodiment of the utility model;

[0033] Fig.10 It is a schematic diagram of the magnetic component structure of a three-section winding column in a specific embodiment of the utility model;

[0034] Fig.11 This is a schematic diagram of a single-back two-section magnetic component structure in a specific embodiment of the utility model;

[0035] Fig.12 It is a schematic diagram of the structure of a magnetic component with two back single sections in a specific embodiment of the utility model;

[0036] Fig.13 It is a structural schematic diagram of a magnetic component in a specific embodiment of the utility model in which the number of core segments is less than the number of windings.

[0037] Explanation of the accompanying drawings: 1. winding coil; 2. E-shaped magnetic core; 3. U-shaped magnetic core; 4. transformer; 5. inductor; 10. winding column; 20. back; 30. magnetic core segment; 40. primary winding; 50. secondary winding; 60. elastic material. DETAILED DESCRIPTION

[0038] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0040] The circuit topology in the prior art generally includes magnetic components, such as Figure 1 The magnetic components included in the circuit topology diagram shown are a transformer 4 and an inductor 5 .

[0041] The magnetic structure in the prior art is as follows Figure 2 , 3 As shown in , 4, 5, and 6, the magnetic part is composed of a winding coil 1 and a magnetic core, and often has a skeleton for support and insulation. The magnetic core is generally divided into two parts, the upper and lower parts, which are connected by a hard glue, such as epoxy glue. After curing, this hard glue has high strength and no elasticity, and is even harder than the magnetic core. The winding coil 1 of the inductor 5 or transformer 4 is wound on it. The winding coil 1 will continue to heat up during the power-on process. If there are parts of the magnetic core that are not wound with the winding coil 1, the magnetic core will be unevenly heated, resulting in uneven deformation of the magnetism, which makes it easier for the magnetic core to break.

[0042] Figure 2 , 3 4 shows a magnetic core structure in the prior art, which includes an E-shaped magnetic core 2 and a winding coil 1. The E-shaped magnetic core 2 is composed of two parallel magnetic core columns (generally iron cores) and a transverse magnetic path connecting them, and its shape is similar to a stretched letter E.

[0043] Figure 5 , 6 Another magnetic core structure in the prior art is shown, which includes a U-shaped magnetic core 3 and a winding coil 1. The U-shaped magnetic core 3 is formed into a "U" shape by one or more magnetic core columns, and the winding coil 1 of the transformer 4 is wound on the U-shaped magnetic core.

[0044] Core breakage can have serious consequences, especially for the performance and stability of magnetic devices:

[0045] Core breakage can lead to the destruction of the core structure, which damages the integrity of the core and affects the performance of the magnetic component. For example, in a transformer, core breakage may cause the magnetic flux path to deform or break, thus affecting the transformer's voltage ratio and making it unable to correctly step up or down the voltage.

[0046] Core fragmentation may cause discontinuity of the magnetic flux path or increase in magnetic resistance, thus affecting the conduction efficiency and stability of the magnetic field. This will lead to a decrease in the performance of electromagnetic devices, such as reduced efficiency of transformers and reduced induced voltage of inductors.

[0047] Core breakage may cause equipment failure, requiring downtime for repair or core replacement, which can cause production line stagnation and reduced production efficiency, resulting in economic losses.

[0048] Core breakage may lead to safety hazards such as equipment failure, short circuit or fire, posing a threat to the working environment and personnel.

[0049] Core breakage requires urgent repair or replacement, which increases repair costs and time, especially if the core is complex or large in size, the repair difficulty and cost will be higher.

[0050] like Figure 7 , 8 As shown in Figures 9, 10, 11, 12, and 13, the utility model proposes a magnetic component, including a core segment 30 and a winding. The core segment 30 is used to concentrate and guide the magnetic field, and it is made of magnetic material. The core segment 30 can be divided into different shapes and sizes to meet different application requirements. The winding is a wire or coil wound on the core segment 30. The winding is made of conductive material, such as copper wire or aluminum wire. The winding generates a magnetic field through electric current, and the magnetic field can generate magnetic flux in the core segment 30. The magnetic component is generally a transformer or an inductor. A transformer is an electrical device used to change the size of an alternating current voltage. An inductor is a passive electronic component that stores electrical energy.

[0051] The material of the magnetic core segment 30 is preferably ferrite. Ferrite has high magnetic permeability, can effectively conduct magnetic flux, improve the efficiency of the magnetic circuit, and has a low hysteresis loop, that is, the change of the magnetization curve is relatively small when the magnetic field changes, so that it has good magnetic permeability in the alternating magnetic field. It has high temperature resistance and can maintain stable magnetic properties at high temperatures. It has good chemical stability and is not easily susceptible to chemical corrosion.

[0052] The magnetic core segments 30 are provided in plurality, and the plurality of magnetic core segments 30 are connected by elastic material 60 to form a magnetic core, and the magnetic core has at least one annular loop. Each magnetic core segment 30 is a part of the magnetic component, which is used to concentrate and guide the magnetic field. These magnetic core segments 30 are connected by elastic material 60. So that when the magnetic component is running, there can be a certain buffer and movement space when there is thermal expansion or mechanical vibration between the magnetic cores. In this way, the stress concentration caused by temperature changes or mechanical stress during the operation of the magnetic component can be reduced, and the risk of deformation and damage of the magnetic component can be reduced.

[0053] The core segment 30 forms a complete core loop, and the magnetic flux will flow inside this core loop. When the current in the winding flows through, a magnetic field will be generated in the core. This magnetic field will cause the magnetic flux to be generated and flow in the core. The magnetic flux will be closed as much as possible along the path of the core to form a core loop. In the core loop, the magnetic flux will flow along the path of the core as much as possible to reduce the magnetic resistance and improve the efficiency of the magnetic circuit. This ensures that the transmission and conversion of the magnetic field are more efficient, thereby achieving the normal operation of electromagnetic devices (such as transformers, inductors, etc.). The design of the annular loop helps to close the magnetic field and improve the conduction efficiency of the magnetic field.

[0054] The cores in the above schemes can be block, U-shaped, PQ-shaped, E-shaped, and so on. Block cores are the simplest shape and are usually used for small transformers or inductors. They can be square, rectangular, or cylindrical, with simple structures and manufacturing processes. The U-shaped core structure consists of one or more core columns forming a "U" shape, and is often used in medium to high power transformers. The U-shaped core structure provides a larger flux cross-sectional area and is suitable for applications that need to handle larger currents and powers. The PQ-type core is a versatile core structure with a cross-sectional shape that resembles a combination of the letters P and Q. They are often used in high-frequency applications such as switching power supplies and inverters. The E-type core structure consists of two parallel core columns and a transverse magnetic path connecting them, and its shape resembles a stretched letter E. The E-type core is often used in smaller power transformers because it is relatively small in size and easy to manufacture and install.

[0055] In an optional embodiment of the utility model, the elastic material 60 is an elastic soft glue. The elastic soft glue is preferably silicone. Silicone is a soft and elastic material that can provide good buffering and shock absorption effects. This helps to reduce the stress transfer between the core segments 30 caused by mechanical vibration or temperature changes, thereby reducing the risk of damage to the magnetic parts. Silicone generally has excellent insulation properties, which is crucial for the design of electromagnetic components. Silicone has good high temperature resistance and can remain stable at relatively high temperatures.

[0056] Elastic soft rubber can also be polyurethane, nitrile rubber, chloroprene rubber, acrylic glue, etc. Polyurethane is a type of polymer made by the reaction of isocyanate and polyol, which has excellent elasticity, wear resistance and chemical corrosion resistance. Nitrile rubber is a synthetic rubber with good oil, water and chemical resistance, as well as good elasticity and wear resistance. Neoprene is a synthetic rubber with good weather resistance, oil resistance and wear resistance, as well as good elasticity and softness. Acrylic glue is a polymer gel material with excellent elasticity, weather resistance and chemical corrosion resistance.

[0057] The winding is wound on the magnetic core. The magnetic core has high magnetic permeability and can concentrate and guide the magnetic field to make it more concentrated and powerful. The winding wound on the magnetic core can make full use of the magnetic permeability of the magnetic core and enhance the conduction efficiency and stability of the magnetic field. The winding structure in the utility model can be a single-layer winding structure or a double-layer or multi-layer winding structure. The single-layer winding structure is the simplest structure, and the winding is wound on only one level. It is suitable for some low-power, low-voltage transformers, with lower manufacturing costs and simpler manufacturing processes. The double-layer winding structure has two adjacent levels in the winding, and usually after the first layer is wound, the second layer continues to be wound on it. This structure can improve the filling factor of the winding, reduce the size and resistance of the winding, and is suitable for some medium power and voltage transformers. The multi-layer winding structure has three or more winding levels. The multi-layer winding structure can further improve the filling factor of the winding, reduce the size and resistance of the winding, and is suitable for high-power, high-voltage transformers.

[0058] like Figure 7 , 9, 10, 11, 12, and 13, the winding includes a primary winding 40 and a secondary winding 50. That is, the magnetic component in the present application is used as a transformer. The primary winding 40 is a winding connected to the input power supply, also known as the primary winding. When the primary winding 40 is energized, the magnetic field generated in the magnetic core will induce the voltage in the secondary winding 50. The number of turns and the current of the primary winding 40 determine the voltage and current of the input power supply. The secondary winding 50 is a winding connected to the output load, also known as the secondary winding. When current flows through the primary winding 40, the magnetic field will induce the voltage in the secondary winding 50 through electromagnetic induction. The number of turns and the current of the secondary winding 50 determine the voltage and current of the output load. The number of turns of the primary winding 40 and the secondary winding 50 are different, so the heat generation of the primary winding 40 and the secondary winding 50 will also be different. The uneven heating of the primary winding 40 and the secondary winding 50 will cause uneven local temperature of the magnetic core. This may lead to local thermal stress concentration in the magnetic core, thereby increasing the risk of core breakage, especially in long-term operation. When designing a transformer, it is necessary to comprehensively consider the thermal non-uniformity caused by the difference in the number of turns of the primary winding 40 and the secondary winding 50. Combined with the structural advantages of the present application, the risk of magnetic component breakage can be effectively reduced.

[0059] like Figure 7 , 8 As shown in , 9, 10, 11, 12, and 13, the magnetic core includes a winding post 10 and a back 20, and the winding post 10 and the back 20 are respectively composed of different magnetic core segments 30. Figure 2 , 3 As shown in Figures 4 and 5, the winding post 10 is the part where the winding is wound, and there is another part without winding, which is generally referred to as the upper and lower backs 20 of the magnetic core. The connection position between the winding post 10 and the back 20 is a corner structure. The corner of the magnetic core is a weak point under stress and is prone to become the location where the magnetic core breaks. Stress concentration may occur at this position, thereby increasing the risk of rupture. This stress concentration comes from a variety of factors, including thermal expansion, mechanical vibration, external impact, etc. Since the winding post 10 and the back 20 are composed of different core segments 30, the corner between the winding post 10 and the back 20 will be connected with an elastic material 60. This design can protect the core structure at the corner by reducing mechanical stress and vibration transmission, and providing flexible support. The elastic connection can absorb external shocks and vibrations to a certain extent, thereby reducing stress concentration at the corner and reducing the risk of rupture.

[0060] like Figure 7 , 8As shown in Figures 9, 10, 11, 12, and 13, each of the primary winding 40 and the secondary winding 50 includes at least two turns of continuously wound wire, and the primary winding 40 and the secondary winding 50 are arranged at intervals along the length direction of the winding column 10. At least two turns of continuous winding means that at least two turns of the wire in the primary winding 40 and the secondary winding 50 are adjacent.

[0061] Usually in circuit topologies such as LLC, LC and CLLC, a resonant inductor and a transformer are used to achieve the functional requirements of the circuit. In LLC, LC and CLLC topologies, the resonant inductor is used to achieve the resonant parameters to ensure that the circuit reaches resonance at a specific operating frequency. The choice of resonant inductor depends on the operating frequency of the circuit and the required resonant characteristics, and is usually used to adjust the frequency response and stability of the circuit. The transformer is used to achieve energy conversion and isolation, and is often used to adjust the input and output voltages of the circuit. In LLC, LC and CLLC circuits, transformers are often used to provide isolation and convert the input voltage to an output voltage suitable for the circuit operation. Usually this resonant inductor and transformer are implemented as two independent magnetic components.

[0062] The primary winding 40 and the secondary winding 50 arranged at intervals can reduce the coupling degree between the primary and secondary sides of the transformer, thereby increasing the leakage inductance. In this way, the leakage inductance can be used as a resonant inductor, that is, the magnetic integration of the resonant inductor and the transformer is realized. Through magnetic integration, the two independent magnetic components originally required can be reduced to one, thereby saving space. This is particularly important for electronic devices and systems with limited space. Reducing one magnetic component means reducing the complexity of connection, installation and layout. The integrated design can simplify the circuit board layout, reduce the number of parts, reduce manufacturing costs and assembly complexity. Magnetic integration can reduce the magnetic resistance in the magnetic circuit, thereby reducing magnetic energy loss and improving the efficiency of the circuit. In addition, due to the reduction of connections in the magnetic circuit, the transmission efficiency of magnetic energy can also be improved. By reducing the connections in the magnetic circuit, the generation and propagation of electromagnetic interference can be reduced. The integrated design can reduce the possibility of failure at the connection and reduce the failure rate, thereby improving the reliability and stability of the system.

[0063] In addition, by changing the arrangement structure of the secondary coil, for example, by adopting a layered or staggered wiring method, the magnetic field crossover and mutual coupling between the coils can be increased, thereby increasing the leakage inductance. By increasing the winding spacing of the secondary coil, the magnetic coupling between the coils can also be reduced, thereby increasing the leakage inductance. At the same time, the more turns, the greater the leakage inductance. This is because a large number of turns will increase the length of the coil and the mutual influence between the windings, thereby increasing the leakage of the magnetic field, and then increasing the leakage inductance. Therefore, in the present application, the leakage inductance can be increased by increasing the number of turns, thereby achieving the desired inductance characteristics.

[0064] like Figure 7 ,8 As shown in Figures 9, 10, 11, 12, and 13, the winding post 10 includes at least two magnetic core segments 30. The design method of dividing the winding post 10 into at least two magnetic core segments 30 is to reduce the stress caused by uneven heating of the magnetic core, thereby reducing the risk of core breakage. Uneven heat may cause uneven thermal expansion of the magnetic core, generate internal stress, and then cause the core to break or damage.

[0065] like Figure 7 , 9 As shown in Figures 11 and 12, the number of the primary windings 40 is the same as the number of the secondary windings 50. Dividing the core into multiple segments 30 can disperse the expansion more evenly. When current passes through the transformer, the core is heated, but by dividing it into multiple segments, the expansion of each segment can be reduced and the stress caused by thermal expansion can be reduced. Dividing the core into multiple segments 30 can improve the mechanical stability of the winding column 10. Each core segment 30 is smaller in size, easier to manage and support, and therefore more resistant to external stress and vibration.

[0066] like Fig.10 , 13 As shown, two primary windings 40 and one secondary winding 50 are wound on the same winding pole 10, and one secondary winding 50 is arranged between the two primary windings 40. In this way, different leakage inductance requirements can be met through different winding methods, which is to meet the resonant inductance requirements of the circuit topology.

[0067] like Fig.13 As shown, the same primary winding 40 or the secondary winding 50 is wound on at least two of the magnetic core segments 30. Distributing the windings on multiple magnetic core segments 30 can disperse the heat more evenly and avoid overheating areas on a single magnetic core segment 30. This helps to reduce thermal stress and improve the stability and life of the transformer. Distributing the windings on multiple magnetic core segments 30 can more flexibly design the structure of the transformer to meet different power and size requirements.

[0068] like Figure 7 , 9 As shown in 11, 12, and 13, the winding column 10 is composed of two magnetic core segments 30, the two primary windings 40 are wound on different magnetic core segments 30, and the secondary winding 50 is wound on the two magnetic core segments 30 at the same time. That is, the number of secondary windings 50 and primary windings 40 is less than the number of magnetic core segments 30 in the winding column 10, wherein the secondary winding 50 and the primary winding 40 can be exchanged, and the primary winding 40 or the secondary winding 50 with less heat can be wound on the magnetic core segment 30 at the same time. Since the more segments of the magnetic core, the higher its cost, reducing the number of magnetic core segments 30 can simplify the manufacturing process of the transformer and reduce the complexity of assembly and adjustment. This helps to improve manufacturing efficiency and reduce production costs.

[0069] like Figure 7 , 9 As shown in Figures 10, 11, and 12, the number of the core segments 30 of the same winding post 10 is the same as the number of the primary windings 40 thereon plus the number of the secondary windings 50. That is, the core segments 30 of the winding post 10 correspond one-to-one to the windings on the winding post 10. Each core segment 30 corresponds to a winding, which helps to optimize the magnetic circuit, improve the magnetic permeability of the magnetic circuit, reduce magnetic leakage, and improve the efficiency of the transformer. The consistency of the number of core segments 30 with the number of windings can simplify the design and manufacturing process, reduce unnecessary complexity, and reduce manufacturing costs. Each winding has its own corresponding core segment 30, which helps to ensure the stability and reliability of the magnetic circuit, reduce the non-uniformity of the magnetic field, and extend the service life of the equipment. Each winding corresponds one-to-one to the corresponding core segment 30, which helps to more evenly distribute the heat of the winding, reduce local overheating, and improve the heat dissipation efficiency of the transformer.

[0070] like Figure 7 , 9 As shown in Figures 10, 11, and 12, the primary winding 40 and the secondary winding 50 are respectively wound on different core segments 30. In the specific scheme, the primary winding 40 and the secondary winding 50 are aligned with the corresponding core segment 30 in the length direction, that is, the primary winding 40 and the secondary winding 50 are the same length as the corresponding core segment 30. By making the winding the same length as the core segment 30, the space of the winding column 10 can be utilized to the greatest extent. This helps to improve the power density of the transformer, allowing it to transmit more power under a given size. The alignment of the winding with the core segment 30 can reduce the stray magnetic field generated by the transformer, thereby reducing interference with surrounding circuits and equipment.

[0071] The primary winding 40 and the secondary winding 50 usually have different power losses and heat generation. Placing them on different core segments 30 can disperse the heat more evenly and avoid local overheating on the same core segment 30. Different winding parts may have different degrees of thermal expansion due to uneven heating, resulting in stress in the core. Placing the windings on different core segments 30 can reduce stress concentration caused by thermal expansion and improve the mechanical stability and life of the transformer.

[0072] like Figure 7 , 9 As shown in Figures 10, 11 and 13, two backs 20 are provided, and at least one back 20 is composed of at least two magnetic core segments 30. The back 20 component composed of multiple magnetic core segments 30 can enhance the mechanical stability of the transformer. This helps to reduce the vibration and deformation of the transformer during transportation and use, and improve the reliability and durability of the equipment. The thickness of the two backs 20 can be the same or different.

[0073] like Figure 7 , 8 As shown in Figures 9, 10, 11, 12, and 13, there are two winding poles 10. That is, a U-shaped structure magnetic core is adopted in the present application. The arrangement order of the primary winding 40 and the secondary winding 50 on the two winding poles 10 in the length direction of the winding pole 10 is the same or opposite. The two winding poles 10 can make better use of the space of the transformer, which is particularly important when designing a high-capacity transformer in a limited space. The U-shaped structure between the two winding poles 10 can improve the heat dissipation performance of the transformer. This helps to effectively dissipate heat from the windings and the magnetic core to maintain the normal operating temperature of the equipment.

[0074] The winding post 10 can be a cylinder, an elliptical cylinder, a square cylinder or other shapes. The cylinder is the most common shape of the winding post 10, which has a simple geometry and manufacturing process. They are commonly used in some basic inductors, transformers and motors. The elliptical cylinder winding post 10 is slightly changed on the basis of the cylinder and has an elliptical cross-section. This shape of winding post 10 can provide more windings in a limited space and is suitable for some applications with limited size. The square cylinder winding post 10 has a square cross-section and is generally used in some applications that require a compact structure to make more efficient use of space. In addition to the above common shapes, the winding post 10 can also adopt other non-traditional shapes, such as hexagons, polygons, etc. These non-traditional shapes of winding posts 10 are generally used in some special application scenarios, such as customized electronic components, sensors, etc.

[0075] In an optional embodiment of the present invention, the arrangement order of the primary winding 40 and the secondary winding 50 on the two winding poles 10 in the length direction of the winding pole 10 is as follows: Fig.10 Same as or as shown Fig.11 The opposite is shown. If the arrangement order of the primary winding 40 and the secondary winding 50 on the two winding poles 10 in the length direction is the same, this can simplify the design and manufacturing process. The same arrangement order can improve production efficiency, reduce manufacturing costs, and ensure the structural symmetry of the two winding poles 10, thereby improving the stability of the equipment. The choice of arrangement order can also affect the magnetic field control of the transformer. By adjusting the arrangement order of the primary winding 40 and the secondary winding 50, designers can more flexibly control the electromagnetic properties of the transformer to meet specific application requirements. The arrangement order can also affect the spatial distribution between the windings, thereby affecting the heat dissipation effect. The same arrangement order can make the heat more evenly distributed on the winding pole 10, while the opposite arrangement order can introduce different heat distribution characteristics.

[0076] In summary, the utility model proposes a magnetic component, in which the magnetic core is a hard material, and the elastic material 60 can be used to connect the various segments of the magnetic core. When the magnetic core expands due to heat, the elastic material 60 can absorb the stress caused by the expansion of the magnetic core through its own deformation, thereby reducing the risk of the magnetic core breaking. Thermal expansion is a natural phenomenon in which hard materials expand when heated. By using the elastic material 60 to connect the segments of the hard material magnetic core, the stress caused by part of the expansion can be absorbed by the deformation of the elastic material 60 when the magnetic core expands due to heat. This helps to manage thermal expansion more effectively and reduce the force on the hard material magnetic core. When the hard material magnetic core is subjected to excessive force or stress, it is prone to cracking or breaking. The introduction of the elastic material 60 can act as a buffer to relieve stress, thereby reducing the risk of cracking or breaking the hard material magnetic core. The elastic material 60 can have good high temperature resistance and can maintain elasticity at higher temperatures. This helps to protect the magnetic core in a high temperature environment and extend its life. Using the elastic material 60 to connect the various segments of the magnetic core can improve manufacturing flexibility. This allows for easier adjustment and adaptation of hard material cores of different shapes and sizes in the design.

[0077] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with this technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention. Efficiently realize the connection between the motor high voltage and the controller high voltage, small size, oil-resistant sealing design, reliable sealing of the controller cavity and the motor cavity, magnetic oil cooling design, effectively reduce the temperature, achieve greater flow and increase product life.

[0078] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of the embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more specific details or by other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

[0079] References throughout the specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0080] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0081] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

[0082] As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of "in" includes "in" and "on" unless otherwise indicated.

[0083] The above description of the illustrated embodiments of the present invention (including that described in the Abstract of the Specification) is not intended to be an exhaustive list or to limit the present invention to the precise form disclosed herein. Although specific embodiments of the present invention and examples of the present invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention as will be recognized and understood by those skilled in the art. As noted, these modifications may be made to the present invention in accordance with the above description of the embodiments described in the present invention, and these modifications will be within the spirit and scope of the present invention.

[0084] Systems and methods have been generally described herein as details that are helpful for understanding the present invention. In addition, various specific details have been given to provide an overall understanding of the embodiments of the present invention. However, those skilled in the relevant art will recognize that the embodiments of the present invention can be practiced without one or more specific details, or practiced using other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations are not specifically shown or described in detail to avoid confusion with various aspects of the embodiments of the present invention.

[0085] Thus, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present invention will be adopted without corresponding use of other features without departing from the scope and spirit of the proposed utility model. Therefore, many modifications can be made to adapt specific environments or materials to the essential scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present utility model will be determined solely by the appended claims.

Claims

1. A magnetic component, characterized in that: include: A magnetic core segment, wherein a plurality of the magnetic core segments are provided, and the plurality of the magnetic core segments are connected by elastic material to form a magnetic core, and the magnetic core has at least one annular loop; The winding is wound on the magnetic core.

2. The magnetic component according to claim 1, characterized in that: The winding includes a primary winding and a secondary winding.

3. The magnetic component according to claim 2, characterized in that: The magnetic core comprises a winding post and a back, wherein the winding post and the back are respectively formed by different magnetic core segments.

4. The magnetic component according to claim 3, characterized in that: Each of the primary winding and the secondary winding comprises at least two turns of continuously wound conducting wire, and the primary winding and the secondary winding are arranged at intervals along the length direction of the winding column.

5. The magnetic component according to claim 4, characterized in that: The winding column includes at least two of the magnetic core segments.

6. The magnetic component according to claim 5, characterized in that: The number of the primary windings is the same as the number of the secondary windings.

7. The magnetic component according to claim 5, characterized in that: Two primary windings and one secondary winding are wound on the same winding pole, and one secondary winding is arranged between the two primary windings.

8. The magnetic component according to claim 7, characterized in that: The same primary winding or the same secondary winding is wound on at least two of the magnetic core segments.

9. The magnetic component according to claim 8, characterized in that: The winding column is composed of two magnetic core segments, the two primary windings are wound on different magnetic core segments, and the secondary winding is wound on the two magnetic core segments at the same time.

10. The magnetic component according to claim 6 or 7, characterized in that: The primary winding and the secondary winding are respectively wound on different magnetic core segments.

11. The magnetic component according to claim 8, characterized in that: The number of the magnetic core segments of the same winding pole is the same as the number of the primary windings thereon plus the number of the secondary windings.

12. The magnetic component according to claim 3, characterized in that: There are two back parts, and at least one back part is composed of at least two magnetic core segments.

13. The magnetic component according to claim 4, characterized in that: The winding poles are provided with two.

14. The magnetic component according to claim 13, characterized in that: The primary windings and the secondary windings on the two winding poles are arranged in the same or opposite order in the length direction of the winding poles.

15. The magnetic component according to claim 1, characterized in that: The elastic material is elastic soft glue.

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