Reactor structure and semiconductor assembly

Abstract

The utility model provides an electric reactor structure and a semiconductor assembly, and the electric reactor structure comprises a housing which is provided with an accommodation cavity; the plurality of winding units are sequentially connected in series and arranged in the accommodating cavity; the partition plate is arranged in the containing cavity, two first sub-cavities are formed between the shell and the partition plate, and at least one winding unit is arranged in each first sub-cavity. According to the technical scheme, the problem that the safety performance of an electric reactor in the related technology is poor can be effectively solved, and when the electric reactor structure is applied to the converter valve, the effect of guaranteeing the safety of other power devices in an electric loop is achieved by guaranteeing the good electric safety performance of the electric reactor structure itself.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of semiconductor devices, specifically, relates to a reactor structure and semiconductor assembly. BACKGROUND

[0002] As the core component of modular multilevel converter (MMC), the anode reactor plays a key role in the IGCT-based HVDC converter valve power module. Its core function is to limit the current rate of change (di / dt) during the switching process of power devices to prevent the failure of IGCT, diode and other devices caused by high current slope.

[0003] In the high-voltage direct-current transmission (such as new energy grid connection and long-distance power transmission) scene, the MMC sub-module needs to withstand tens of kV voltage and several kA current, while the anode reactor will encounter a surge oscillation current of up to hundreds of kA under overvoltage short-circuit conditions. For example, when the DC capacitor discharges through the "DC capacitor positive pole-anode reactor-upper diode-lower IGCT-DC capacitor negative pole" loop, such a fault can release megajoule-level energy within milliseconds, causing the temperature and pressure inside the reactor to rise sharply, which may cause explosive tearing or splashing impact, endangering the safety of adjacent power modules and systems. SUMMARY

[0004] The main purpose of the utility model is to provide a reactor structure and semiconductor assembly to solve the problem of poor safety performance of the reactor in related technologies.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a reactor structure is provided, which comprises: a shell having a receiving cavity; a plurality of winding units connected in series and arranged in the receiving cavity; a partition plate arranged in the receiving cavity, two first sub-cavities are formed between the shell and the partition plate, and at least one winding unit is arranged in each first sub-cavity.

[0006] Further, the partition plate is a plurality of partition plates, a second sub-cavity is formed between each two adjacent partition plates and the shell, and at least one winding unit is arranged in each second sub-cavity.

[0007] Further, the reactor structure further comprises a fuse, the fuse is arranged in the first sub-cavity and / or the second sub-cavity, and the fuse is connected in series with the winding unit arranged in the same first sub-cavity and / or second sub-cavity.

[0008] Further, the fuse is a plurality of fuses, and each first sub-cavity and second sub-cavity is provided with a fuse.

[0009] Further, the thickness D1mm of the partition plate satisfies: 2mm≤D1mm≤5mm; and / or, the material of the partition plate is epoxy resin or ceramic.

[0010] Further, the winding unit comprises a first coil body; or, the winding unit comprises a core body and a second coil body wound on the core body.

[0011] Further, the shell comprises a first metal layer, an aerogel layer and a second metal layer arranged in sequence from inside to outside.

[0012] Further, the material of the aerogel layer is ceramic aerogel.

[0013] Further, the material of the first metal layer is aluminum alloy; and / or, the material of the second metal layer is stainless steel.

[0014] According to another aspect of the present application, a semiconductor assembly is provided, comprising the reactor structure, and the reactor structure is the above-mentioned reactor structure.

[0015] Further, the semiconductor assembly further comprises a semiconductor device, a capacitor, a first energy consumption module and a second energy consumption module, the semiconductor device, the capacitor and the reactor structure are connected in series and form a loop, the first energy consumption module is electrically connected at both ends of the capacitor, and the second energy consumption module is electrically connected at both ends of the reactor structure.

[0016] Further, the first energy consumption module comprises a pressure-sensitive resistor; and / or, the second energy consumption module comprises an RC absorber.

[0017] The technical scheme of the present application is applied, the shell is used for protecting other components of the reactor structure, and the reactor structure is arranged in the accommodating cavity of the shell by arranging the partition plate and the plurality of winding units, thereby realizing physical and electrical isolation between adjacent winding units. The plurality of winding units are sequentially connected and arranged in the accommodating cavity of the shell, thereby increasing the overall inductance value of the reactor structure. In the power electronic system, the electric arc can inhibit the mutation of the current, especially in the switching process, which is crucial for protecting sensitive devices such as IGCT (integrated gate-commutated thyristor), diode, etc. from the influence of excessively high current slope. When the reactor structure encounters a surge oscillation current as high as hundreds of kA in a high-voltage direct-current transmission scene, the presence of the partition plate can effectively block the transmission of electric arc high temperature to other winding units, prevent the spread of energy between different winding units, thereby reducing the risk of sudden temperature rise and pressure increase inside the reactor structure, avoiding the generation of explosive tearing or splashing, and enhancing the safety performance of the reactor structure under extreme conditions. In addition, the first sub-cavity formed by the shell and the partition plate provides an independent thermal and pressure isolation environment for the winding unit, which helps to limit the scope of the fault and protect the adjacent power modules and the system safety. Therefore, the technical scheme of the present application can effectively solve the problem of poor safety performance of the reactor in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the specification of the application serve to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A principle schematic view of an embodiment of the reactor structure according to the present application is shown;

[0020] Figure 2 A cross-sectional schematic view of the housing of the reactor structure of Figure 1 is shown;

[0021] Figure 3 A principle schematic view of an embodiment of the semiconductor assembly according to the present application is shown.

[0022] Among the above drawings, the following reference signs are included:

[0023] 10, housing; 11, accommodating cavity; 111, first sub-cavity; 112, second sub-cavity; 12, first metal layer; 13, aerogel layer; 14, second metal layer;

[0024] 20, winding unit;

[0025] 30, partition plate;

[0026] 40, fuse;

[0027] 51, semiconductor device; 52, capacitive element; 53, first energy consumption module; 54, second energy consumption module; 55, fast switch; 56, reactor structure; 57, clamping diode; 58, diode; 59, clamping resistance; 60, clamping capacitance. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, and by no means constitutes any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative labor fall within the scope of protection of the present application.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] like Figure 1 as well as Figure 2 As shown, this application provides a reactor structure. An embodiment of the reactor structure of this application includes: a housing 10, a winding unit 20, and a partition 30; the housing 10 has a receiving cavity 11; a plurality of winding units 20 are sequentially connected in series and disposed in the receiving cavity 11; the partition 30 is disposed in the receiving cavity 11, and two first sub-cavities 111 are formed between the housing 10 and the partition 30, and at least one winding unit 20 is disposed in each first sub-cavity 111.

[0032] The technical scheme of the embodiment is applied, the shell 10 is used for protecting other components of the reactor structure, the reactor structure is realized by arranging the partition plate 30 and the plurality of winding units 20 in the accommodating cavity 11 of the shell 10, and physical and electrical isolation between adjacent winding units 20 is realized. The plurality of winding units 20 are arranged in the accommodating cavity 11 of the shell 10 in series connection, and the overall inductance value of the reactor structure can be increased. In the power electronic system, the electric energy can inhibit the mutation of the current, especially in the switching process, which is crucial to protect sensitive devices such as IGCT (integrated gate-commutated thyristor), diode and the like from the influence of too high current slope. When the reactor structure encounters a surge oscillation current as high as hundreds of kA in the high-voltage direct-current transmission scene, the presence of the partition plate 30 can effectively block the transmission of arc high temperature to other winding units 20, prevent the energy from spreading between different winding units 20, thereby reducing the risk of sudden temperature rise and pressure increase in the reactor structure, avoiding the generation of explosive tearing or splashing, and enhancing the safety performance of the reactor structure under extreme conditions. In addition, the first sub-cavity 111 formed by the shell 10 and the partition plate 30 provides an independent thermal and pressure isolation environment for the winding unit 20, which helps to limit the scope of the failure and protect the adjacent power modules and the system safety. Therefore, the technical scheme of the embodiment can effectively solve the problem of poor safety performance of the reactor in the related art.

[0033] It should be noted that the reactor structure of the embodiment plays a role in protecting other electrical elements in the converter valve, for example, the reactor structure of the embodiment can be used as an anode reactor, and the reactor structure is an important component of the modular multilevel converter (MMC), especially in the IGCT-based flexible AC transmission system (FACTS) power module. The important function of the reactor structure in this field is to limit the current change rate (di / dt) in the switching process of the power device, and to prevent the failure of the IGCT, diode and the like caused by too high current slope, so that the reactor structure itself has better electrical safety performance, and further ensures the safety of other devices (especially power devices) in the entire electrical circuit.

[0034] As Figure 1 and Figure 2As shown, the partition plates 30 are multiple, and two adjacent partition plates 30 and the shell 10 form a second sub-cavity 112, and at least one winding unit 20 is arranged in each second sub-cavity 112. Specifically, such a layout not only increases the compactness of the reactor structure, but also realizes the physical isolation between the winding units 20 through the partition plates 30, which helps to improve the safety and stability of the system. The second sub-cavity 112 is independently provided with one winding unit 20, and even if a winding unit 20 fails under extreme conditions, the presence of the partition plate 30 can limit the scope of the accident and reduce the lateral propagation of energy, thereby reducing the risk of chain reactions and ensuring the reliable operation of the reactor structure in a high-voltage and high-current environment. In addition, the arrangement of the partition plate 30 helps to optimize the magnetic field distribution and improve the overall efficiency of the reactor.

[0035] As shown in Figure 1 and Figure 2 The reactor structure further comprises a fuse 40, which is arranged in the first sub-cavity 111 and / or the second sub-cavity 112, and the fuse 40 is connected in series with the winding unit 20 located in the same first sub-cavity 111 and / or second sub-cavity 112. Specifically, the introduction of the fuse 40 can quickly melt and cut off the fault circuit when the reactor structure encounters an overload, further enhancing the safety protection mechanism of the reactor structure. In particular, when the fault current exceeds a predetermined value, the fuse 40 can respond in time to avoid damage to the entire reactor structure due to the failure of a single component, improving the overall safety of the system.

[0036] As shown in Figure 1 and Figure 2 The fuse 40 is multiple, and each first sub-cavity 111 and second sub-cavity 112 is provided with a fuse 40. Specifically, this design realizes the series connection of the winding unit 20 in each sub-cavity and its corresponding fuse 40, ensuring that when the winding unit 20 in a sub-cavity fails, the corresponding fuse 40 can quickly melt and cut off the current at the fault site, preventing the spread of the fault and causing damage to the entire reactor structure. By arranging a fuse 40 in each sub-cavity, the reactor structure not only enhances the safety of the system, but also improves the efficiency of fault isolation, allowing for faster response and handling under extreme conditions and reducing the impact on adjacent power modules and the system. Such a distributed protection strategy significantly enhances the reliability and stability of the reactor structure in a high-voltage and high-current working environment.

[0037] Further, in the present embodiment, the thickness D1mm of the partition plate 30 satisfies: 2mm≤D1mm≤5mm. The material of the partition plate 30 is epoxy resin or ceramic. Specifically, the thickness design and material selection of the partition plate 30 work together to form an effective physical and electrical isolation barrier, effectively limiting the scope of the fault impact even in the event of a short circuit or overload within the reactor structure, avoiding the destructive release of energy to the entire system. The epoxy resin or ceramic material not only has good insulation performance, but also can maintain stable structure at high temperature, preventing material degradation or failure due to overheating, further ensuring the reliability and safety of the reactor structure. This design ensures that in the high-voltage direct-current transmission scenario, even if it encounters a surge oscillation current impact of hundreds of kA, the reactor structure can effectively avoid the generation of explosive tearing or splashing through the internal energy dispersion mechanism and the thermal stability of the material, greatly reducing the risk to adjacent power modules and system safety. The thickness D1mm of the partition plate 30 can be 2mm, 2.6mm, 3mm, 3.3mm, 4mm, 4.5mm or 5mm. In addition, the inner surface of the shell 10 is provided with a plurality of spaced mounting grooves, and the partition plate 30 is detachably arranged in the mounting grooves. The partition plate 30 is connected or separated with the mounting groove by sliding in and out. The user can control the size of the sub-cavity by the specific arrangement of the internal components of each sub-cavity, so as to adjust the size of the sub-cavity by the specific position of the partition plate 30.

[0038] Further, in the present embodiment, the winding unit 20 includes a first coil body; or, the winding unit 20 includes a core body and a second coil body wound on the core body. Specifically, this design provides flexibility and efficiency for the reactor structure, so that the reactor can select the most suitable winding form according to the actual application requirements. The use of the first coil body can simplify the structure and facilitate the manufacture and installation of the winding unit 20; while the combination of the core body and the second coil body can enhance the magnetic performance of the reactor, provide higher inductance value and better magnetic flux control, suitable for scenes with higher requirements for inductance. By selecting different types of winding units 20, the performance parameters of the reactor structure can be optimized while ensuring its basic functions, meeting diversified application requirements.

[0039] As shown in Figure 1 and Figure 2 , the shell 10 includes a first metal layer 12, an aerogel layer 13, and a second metal layer 14 arranged from inside to outside. Specifically, this three-layer structure design combines the advantages of each layer of material, achieving multiple protection and efficient heat dissipation of the reactor structure.

[0040] In this embodiment, the material of the aerogel layer 13 is ceramic aerogel. The thermal management and safety performance of the reactor structure are significantly enhanced. As a high-performance thermal insulation material, ceramic aerogel not only has low thermal conductivity, ensuring effective insulation of heat inside the reactor structure, but also has inherent high porosity and rigid structure to effectively absorb and disperse the impact energy generated during short-circuit fault, preventing structural damage and safety risks caused by concentrated energy release. In addition, the use of ceramic aerogel also improves the overall electrical insulation performance, providing more reliable protection for the reactor structure, ensuring stable operation and personnel safety under extreme working conditions. By using ceramic aerogel as the material of the aerogel layer 13, the reactor structure can more effectively control the internal temperature and pressure when facing high-energy release scenarios, avoiding potential explosions or flying debris, thereby significantly improving the safety and reliability of the reactor structure and the semiconductor assembly it is in.

[0041] In addition, in this embodiment, the material of the first metal layer 12 is aluminum alloy; the material of the second metal layer 14 is stainless steel. Such a structural design realizes the comprehensive advantages of the material characteristics of the shell, where aluminum alloy, with its light weight and good electrical conductivity, is suitable as the inner layer material, while stainless steel, with its excellent strength and corrosion resistance, provides a solid protection and stable electrical performance for the entire reactor structure. The three-layer structure works synergistically, not only enhancing the safety performance of the reactor structure, but also optimizing its heat dissipation efficiency, so that the entire reactor structure can effectively manage internal heat while ensuring structural strength, improving operational stability. When the reactor structure is subjected to transient high pressure, the first metal layer 12 first deforms plastically to dissipate energy, then the aerogel layer 13 further attenuates the pressure wave through the collapse of its pore structure, and finally the second metal layer 14 limits any possible flying debris, ensuring the safety of the external environment. In addition, this design also considers the effective discharge of internal heat, optimizing the heat distribution path to ensure temperature control of the reactor structure during high-power operation, prolonging the service life of the equipment.

[0042] As shown in Figure 3 The present application also provides a semiconductor assembly, which comprises the reactor structure. The reactor structure can effectively solve the problem of poor safety performance of the reactor in the related art, and the semiconductor assembly with the reactor structure also has the advantages of the reactor structure.

[0043] As shown in Figure 3As shown, the semiconductor assembly further includes a semiconductor device 51, a capacitor 52, a first energy dissipation module 53, and a second energy dissipation module 54. The semiconductor device 51, the capacitor 52, and the reactor structure are connected in series and form a loop. The first energy dissipation module 53 is electrically connected across the capacitor 52, and the second energy dissipation module 54 is electrically connected across the reactor structure. Specifically, such a configuration can achieve effective management and distribution of transient energy in the circuit. When overvoltage or overcurrent faults occur in the circuit, the first energy dissipation module 53 preferentially absorbs the energy released by the capacitor 52, limiting the potential damage of energy impact on the entire system, while the second energy dissipation module 54 further absorbs residual energy, locally protecting the winding units within the reactor structure, reducing the impact of transient voltage and current stress on the reactor structure, thereby improving the safety and reliability of the entire semiconductor assembly. Through the synergistic effect of the main energy absorption and local energy absorption units, energy dispersion and pressure wave attenuation during circuit faults are achieved, significantly enhancing the stability and safety of the semiconductor assembly under extreme conditions. The semiconductor device 51 can be an IGCT.

[0044] As shown in Figure 3 Specifically, the introduction of the pressure-sensitive resistor and the RC absorber enables the semiconductor assembly to quickly absorb and dissipate excess electrical energy when encountering overvoltage or overcurrent, effectively limiting the peak values of voltage and current, and protecting the reactor structure and other semiconductor devices in the system from damage. The pressure-sensitive resistor, as the first energy dissipation module, can quickly respond to and absorb overvoltage at the system level; while the RC absorber, as the second energy dissipation module, focuses more on suppressing local overvoltage within the reactor. The synergistic effect of the two forms a comprehensive overvoltage protection mechanism, improving the overall safety and reliability of the semiconductor assembly. In addition, the parameters of the pressure-sensitive resistor and the RC absorber can be adjusted according to actual application requirements to adapt to different working voltage and current levels, ensuring stable operation of the semiconductor assembly under various harsh working conditions. The design of this composite protection topology not only enhances the overvoltage resistance of the reactor structure, but also optimizes the distribution and dissipation of energy, providing a more secure and reliable solution for high-voltage direct current transmission scenarios.

[0045] In addition, in this embodiment, the formed loop is also provided with a fast switch 55, a clamping diode 57, a diode 58, a clamping resistor 59, and a clamping capacitor 60. The fast switch 55 is usually a high-speed response switching device, such as a power MOSFET or IGBT. In power electronic systems, fast switches are used to quickly cut off or restore current in the circuit to achieve on-off control of the load. In terms of fault detection and processing, it can quickly act to isolate the fault part to prevent the fault from expanding and protect other circuit components from damage. Especially in MMC (Modular Multilevel Converter) systems, fast switches are one of the key components to achieve modular control. The clamping diode 57 is a special diode mainly used to clamp the voltage in the circuit to prevent exceeding the preset value. In switching power supplies, motor controls, or other power conversion systems, when the switching device is suddenly turned off, due to the electromagnetic induction effect of the inductor, a reverse electromotive force (i.e. a sharp voltage spike) will be generated in the circuit. The clamping diode can quickly conduct to clamp the sharp voltage spike at the breakdown voltage of the clamping diode, thereby protecting the switching device and other circuit components from overvoltage damage. The diode 58 is usually used for rectification, protection, signal isolation, etc. in power electronic systems. In this specific circuit, it can be used as a freewheeling diode to allow the energy stored in the winding unit to be released through the diode after the switching device is turned off, avoiding damage to the system caused by voltage spikes. The freewheeling diode is very common in inverters, DC-DC converters, etc. to ensure smooth transfer of energy in the inductor. The clamping resistor 59 is used in conjunction with the clamping diode 57, which can limit the current flowing through the clamping diode 57 to ensure that the diode 58 will not be damaged by excessive current. At the same time, it can also help to dissipate excess electrical energy, thereby playing a protective role in the circuit. When the system has abnormal voltage, the clamping resistor 59 and the clamping diode 57 work together to limit the voltage within a safe range, while the excess voltage energy is dissipated through the resistor. The clamping capacitor 60 is usually used in the circuit for voltage stabilization, which can store or release charge when the circuit voltage fluctuates to maintain a constant voltage. In power electronic systems, the clamping capacitor 60, together with the clamping resistor 59 and the clamping diode 57, forms a clamping circuit to limit voltage peaks, absorb transient voltage spikes, and reduce the impact of voltage surges on the system.

[0046] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0047] For the convenience of description, spatial relative terms such as '' above'', '' above'', '' upper surface'', '' upper '' and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the exemplary term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0048] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the limitation of the protection scope of the utility model.

[0049] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A reactor structure, characterized by The electric reactor structure comprises: a shell (10) having a receiving cavity (11); a plurality of winding units (20) arranged in series in the receiving cavity (11); a partition plate (30) arranged in the receiving cavity (11), two first sub-cavities (111) being formed between the shell (10) and the partition plate (30), and at least one winding unit (20) being arranged in each first sub-cavity (111).

2. The reactance structure of claim 1, wherein, The partition plate (30) is in plurality, and a second sub-cavity (112) is formed between two adjacent partition plates (30) and the shell (10), and at least one winding unit (20) is arranged in the second sub-cavity (112).

3. The reactor structure of claim 2, wherein, The electric reactor structure further comprises a fuse (40) arranged in the first sub-cavity (111) and / or the second sub-cavity (112), and the fuse (40) is connected in series with the winding unit (20) arranged in the same first sub-cavity (111) and / or second sub-cavity (112).

4. The reactance structure of claim 3, wherein, The fuse (40) is in plurality, and the fuse (40) is arranged in each first sub-cavity (111) and second sub-cavity (112).

5. The electric reactor structure according to claim 1, wherein the thickness D1 of the partition plate (30) satisfies 2mm≤D1≤5mm; and / or the material of the partition plate (30) is epoxy resin or ceramic.

6. The electric reactor structure according to claim 1, wherein the winding unit (20) comprises a first coil body; or the winding unit (20) comprises a core body and a second coil body wound on the core body.

7. The reactor structure according to any one of claims 1 to 6, characterized in that The shell (10) comprises a first metal layer (12), an aerogel layer (13) and a second metal layer (14) arranged in layers from inside to outside.

8. The reactance structure of claim 7, wherein, The material of the aerogel layer (13) is ceramic aerogel.

9. The reactance structure of claim 7, wherein, The material of the first metal layer (12) is aluminum alloy; and / or the material of the second metal layer (14) is stainless steel.

10. A semiconductor assembly comprising a reactor structure, characterized by The electric reactor structure is the electric reactor structure according to any one of claims 1 to 9.

11. The semiconductor component according to claim 10, characterized in that The semiconductor assembly further comprises a semiconductor device (51), a capacitor (52), a first energy dissipation module (53) and a second energy dissipation module (54), the semiconductor device (51), the capacitor (52) and the electric reactor structure are connected in series and form a loop, the first energy dissipation module (53) is electrically connected at both ends of the capacitor (52), and the second energy dissipation module (54) is electrically connected at both ends of the electric reactor structure.

12. The semiconductor component according to claim 11, characterized in that The first energy dissipation module (53) comprises a pressure-sensitive resistor; and / or the second energy dissipation module (54) comprises an RC absorber.

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