Inductor structure and electric reactor

Abstract

The utility model discloses an inductor structure and electric reactor, including shell and the inductor main part that is encapsulated in the shell in potting mode, the inductor main part includes skeleton main part, magnetic core main part and the winding that sets up in the magnetic core main part, the magnetic core main part and the winding as one piece install in the skeleton main part; the framework body is of a framework structure made of high-thermal-conductivity insulating plastic. According to the inductor structure, the framework main body is made of the high-thermal-conductivity insulating plastic, so that heat can be quickly transferred to the heat-conducting glue through the framework main body, and finally, the heat is transferred to the shell through the heat-conducting glue, so that quick heat conduction and cooling are realized, and the temperature rise of the inductor structure can be effectively reduced; meanwhile, compared with a traditional mode of increasing the sectional area of the winding and reducing the resistance and a mode of using a low-loss magnetic core material, the framework structure made of the high-thermal-conductivity insulating plastic can greatly reduce the cost of the inductor structure.

Description

Technical Field

[0001] The utility model relates to the technical field of inductance, and more specifically, to an inductance structure and a reactor. Background Art

[0002] The most common problem that occurs during the use of inductor structures is excessive temperature rise. The reasons for excessive temperature rise mainly come from two aspects: on the one hand, it comes from the heating element, which is the source of heat generated during use, and its specific structure includes windings and magnetic cores; on the other hand, it comes from heat transfer. If the heat generated by the heating element is not transferred out in time, it will cause heat accumulation and temperature rise.

[0003] The current inductor structure mainly uses the method of reducing the heat generated by the heating element to achieve temperature rise control. For example, by increasing the cross-sectional area of ​​the winding to reduce resistance and reduce heat generation; for another example, using low-loss core materials to reduce the heat generation of the core, but both methods will lead to higher costs for the inductor structure.

[0004] Therefore, how to reduce the cost of the inductor structure while reducing the temperature rise of the inductor structure has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the utility model provides an inductor structure and a reactor to solve the problem of reducing the cost of the inductor structure while satisfying the requirement of reducing the temperature rise of the inductor structure.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An inductor structure includes a housing and an inductor body encapsulated in the housing by means of glue potting, wherein the inductor body includes:

[0008] Skeleton body;

[0009] A magnetic core body and a winding arranged on the magnetic core body, both of which are installed on the skeleton body as a whole;

[0010] Wherein, the skeleton body is a skeleton structure made of high thermal conductivity insulating plastic.

[0011] Optionally, the magnetic core body is constructed as a spliced ​​structure formed by splicing multiple magnetic core splits, and a splicing gap is formed between any two adjacent magnetic core splits. The magnetic core body also includes an air gap adjustment component, which is used to be selectively set in the splicing gap to control the inductance value by adjusting the air gap. The air gap adjustment component is an air gap adjustment component made of high thermal conductivity plastic.

[0012] Optionally, the magnetic core body comprises an upper magnetic yoke, a lower magnetic yoke and an intermediate magnetic column spliced ​​between the upper magnetic yoke and the lower magnetic yoke, and the winding is arranged on the intermediate magnetic column;

[0013] The middle magnetic column comprises a plurality of first magnetic column monomers spliced ​​in sequence; and / or the upper magnetic yoke (221) comprises a plurality of second magnetic column monomers spliced ​​in sequence; and / or the lower magnetic yoke (222) comprises a plurality of third magnetic column monomers spliced ​​in sequence;

[0014] Wherein, the air gap adjustment component (223) is selectively arranged in the splicing gap between any two adjacent splicing components of the magnetic core body (22).

[0015] Optionally, the skeleton body comprises:

[0016] An upper frame, used for mounting and fixing the upper magnetic yoke;

[0017] A lower frame, used for mounting and fixing the lower magnetic yoke;

[0018] The middle frame is connected between the upper frame and the lower frame, and the middle frame has a loading cavity that is matched with the middle magnetic column in a one-to-one correspondence, and the loading cavity is used to install and fix the middle magnetic column.

[0019] Optionally, the upper frame, the lower frame and the middle frame are constructed as an integrated structure.

[0020] Optionally, the skeleton body is constructed as a split structure.

[0021] Optionally, the middle frame is constructed as a first split frame and a second split frame which are arranged in an upper and lower split manner, the first split frame and the upper frame are constructed as an integrally formed structure, and the second split frame and the lower frame are constructed as an integrally formed structure.

[0022] Optionally, a first hollow structure for the potting glue to flow into is provided on at least one of the upper frame, the lower frame and the middle frame.

[0023] Optionally, an insulating protective film is provided between the magnetic core body and the winding, and the insulating protective film is an insulating protective film made of high thermal conductive insulating plastic.

[0024] Optionally, the inductor body further comprises an insulating heat-conducting block arranged on a side of the winding, and the insulating heat-conducting block is an insulating heat-conducting block made of high thermal conductivity insulating plastic.

[0025] Optionally, the insulating heat-conducting blocks on the sides of the windings are connected by heat-conducting lap joints; and / or the insulating heat-conducting blocks between two adjacent windings are connected by the heat-conducting lap joints;

[0026] Wherein, the thermally conductive lap joint is a thermally conductive lap joint made of high thermally conductive insulating plastic or ceramic material.

[0027] Optionally, a second hollow structure for the potting glue to flow into is provided on the thermal conductive overlap member.

[0028] Optionally, the magnetic core body is an integrated structure, and the skeleton body is configured as a net bag structure formed between the magnetic core body and the shell.

[0029] Compared with the background technology, the inductor structure includes a shell and an inductor body encapsulated in the shell by glue pouring, the inductor body includes a skeleton body, a magnetic core body and a winding arranged on the magnetic core body, wherein the magnetic core body and the winding are installed on the skeleton body as a whole; the skeleton body is a skeleton structure made of high thermal conductivity insulating plastic. In the actual application process of the inductor structure, since the skeleton body is a skeleton structure made of high thermal conductivity insulating plastic, when the inductor body is encapsulated in the shell by glue pouring, the heat of the magnetic core body and the winding can be quickly transferred to the thermal conductive glue through the skeleton body, and finally the heat is transferred to the shell by the thermal conductive glue, thereby realizing rapid thermal conduction and cooling, which can effectively reduce the temperature rise of the inductor structure. At the same time, the skeleton structure made of high thermal conductivity insulating plastic can greatly reduce the cost of the inductor structure compared with the traditional method of increasing the cross-sectional area of ​​the winding to reduce the resistance and the method of using low-loss magnetic core materials.

[0030] In addition, the utility model also provides a reactor, including an inductor structure, wherein the inductor structure is the inductor structure described in any of the above schemes. Since the above inductor structure has the above technical effects, the reactor having the inductor structure should also have corresponding technical effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.

[0032] Figure 1 A schematic diagram of the structure in which the inductor body provided by the embodiment of the utility model is installed in the housing;

[0033] Figure 2 A schematic diagram of the structure of a magnetic core body provided by an embodiment of the utility model;

[0034] Figure 3A schematic diagram of a structure in which an insulating protective film is arranged at a position where a winding is installed on a magnetic core body provided in an embodiment of the utility model;

[0035] Figure 4 A schematic diagram of the basic structure of the inductor body provided by an embodiment of the utility model;

[0036] Figure 5 A schematic diagram of a skeleton body provided in an embodiment of the utility model being constructed as an integrated structure;

[0037] Figure 6 A schematic diagram of a skeleton main body provided in an embodiment of the utility model being constructed into a split structure;

[0038] Figure 7 A schematic diagram of a structure in which insulating heat-conducting blocks are arranged on the left and right sides of the winding of the inductor body provided by an embodiment of the utility model;

[0039] Figure 8 A schematic diagram of a structure in which the insulating heat-conducting blocks between two adjacent windings provided in an embodiment of the utility model are connected via a heat-conducting lap joint;

[0040] Fig. 9 A schematic diagram of a structure in which the insulating heat-conducting blocks on the left and right sides of the winding provided by the embodiment of the utility model are connected by heat-conducting lap joints;

[0041] Fig.10 A schematic diagram of a structure in which the insulating heat-conducting blocks on the left and right sides of a winding and the insulating heat-conducting blocks between two adjacent windings provided by an embodiment of the utility model are connected by heat-conducting overlap pieces;

[0042] Fig.11 Another structural schematic diagram of the inductor body provided in an embodiment of the utility model.

[0043] in, Figure 1-Figure 11 middle:

[0044] Shell 1;

[0045] Inductor body 2, skeleton body 21, upper skeleton 211, lower skeleton 212, middle skeleton 213, loading cavity 2130, first split skeleton 2131, second split skeleton 2132, magnetic core body 22, middle magnetic column 220, first magnetic column monomer 2201, upper magnetic yoke 221, lower magnetic yoke 222, air gap adjustment component 223, winding 23, insulating protective film 24, insulating heat conductive block 25, heat conductive overlap part 26, second hollow structure 260. DETAILED DESCRIPTION

[0046] The core of the utility model is to provide an inductor structure and a reactor to solve the problem of reducing the cost of the inductor structure under the premise of reducing the temperature rise of the inductor structure.

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] Reference Figure 1-Figure 11 As shown, the utility model provides an inductor structure, including a shell 1 and an inductor body 2 encapsulated in the shell 1 by means of glue potting, wherein the shell 1 is generally preferably but not limited to an aluminum shell, and a heat dissipation structure, such as a heat dissipation fin, can be designed on the outer side thereof. The glue potted in the shell 1 is generally a thermal conductive glue with good thermal conductivity, and its purpose is to enable the heat generated by the inductor body 2 to be quickly transferred to the shell 1 through the thermal conductive glue to achieve cooling. In addition, referring to Figure 1 As shown, the housing 1 generally adopts a detachable cover plate, which makes it more convenient to assemble and glue-fill the inductor body 2; the inductor body 2 can specifically include a skeleton body 21, a magnetic core body 22 and a winding 23 arranged on the magnetic core body 22, and the skeleton body 21 is mainly used to carry the magnetic core body 22 and the winding 23, and the magnetic core body 22 and the winding 23 are installed on the skeleton body 21 as a whole; in addition, the skeleton body 21 preferably adopts a skeleton structure made of high thermal conductivity insulating plastic.

[0049] It is worth mentioning that the above-mentioned high thermal conductivity insulating plastic belongs to existing materials and is a plastic material with excellent thermal conductivity and good insulation properties. It can quickly conduct heat, so that heat can be quickly conducted from the heat source to the place where heat dissipation is required, thereby improving the heat dissipation efficiency of the equipment and ensuring the normal operation of the equipment. At the same time, high thermal conductivity insulating plastic can also effectively prevent the passage of current, reduce the risk of leakage of the equipment, and improve the safety of the equipment. As long as it is a plastic that can meet the thermal conductivity and insulation requirements of the corresponding application scenario, such as polytetrafluoroethylene, thermoplastic polyester and other plastics, for example, composite thermal conductive plastics containing graphene, composite thermal conductive plastics containing thermal conductive fibers and other composite thermal conductive plastics, no more specific restrictions are made here.

[0050] In actual application of the inductor structure, since the skeleton body 21 is made of high thermal conductivity insulating plastic, when the inductor body 2 is encapsulated in the shell 1 by glue injection, the heat of the magnetic core body 22 and the winding 23 can be quickly transferred to the thermal conductive glue through the skeleton body 21, and finally the heat is transferred to the shell 1 by the thermal conductive glue, thereby realizing rapid thermal conduction and cooling, which can effectively reduce the temperature rise of the inductor structure. At the same time, the skeleton structure made of high thermal conductivity insulating plastic can greatly reduce the cost of the inductor structure compared with the traditional method of increasing the cross-sectional area of ​​the winding 23 to reduce the resistance and the method of using low-loss magnetic core materials.

[0051] In some specific embodiments, reference Figure 2 and Figure 3 As shown, the magnetic core body 22 can be specifically constructed into a splicing structure formed by splicing a plurality of magnetic core parts, and a splicing gap is formed between any two adjacent magnetic core parts. The magnetic core body 22 also includes an air gap adjustment component 223, and the air gap adjustment component 223 is used to be selectively set in the splicing gap to control the inductance value by adjusting the air gap. The air gap adjustment component 223 is preferably an air gap adjustment component made of high thermal conductivity plastic. Compared with the traditional method of using air gap paper as an air gap adjustment component, the heat transfer between the magnetic core parts can be greatly improved, and then the heat of the area corresponding to the winding on the magnetic core body 22 can be better transferred to the area corresponding to the skeleton body 21 on the magnetic core body 22, so as to reduce the temperature of the area on the magnetic core body 22 corresponding to the inductance structure that is most prone to temperature rise problems. On the other hand, generally, high thermal conductivity insulating plastics are cheaper than air gap paper, which helps to reduce costs.

[0052] It should be noted that the air gap adjustment component 223 is selectively set in the splicing gap, which means that the air gap adjustment component 223 can be set in part of the splicing gap according to the adjustment requirements, or the air gap adjustment component 223 can be set in the entire splicing gap. During actual application, the air gap adjustment component 223 can be arranged in the splicing gap at the corresponding position according to the actual adjustment requirements.

[0053] In some specific embodiments, reference Figure 2As shown, the magnetic core body 22 may specifically include an upper magnetic yoke 221, a lower magnetic yoke 222, and an intermediate magnetic column 220 spliced ​​between the upper magnetic yoke 221 and the lower magnetic yoke 222, and the winding 23 is arranged in the intermediate magnetic column 220; wherein the intermediate magnetic column 220 may specifically include a plurality of first magnetic column monomers 2201 spliced ​​in sequence; similarly, the upper magnetic yoke 221 may also be designed to include a plurality of second magnetic column monomers spliced ​​in sequence; in addition, the lower magnetic yoke 222 may also be designed to include a plurality of third magnetic column monomers spliced ​​in sequence. In actual application, at least one of the intermediate magnetic column 220, the upper magnetic yoke 221, and the lower magnetic yoke 222 may be designed as a plurality of spliced ​​structures spliced ​​in sequence according to actual needs, and the air gap adjustment component 223 may be selectively arranged in the splicing gap between any two adjacent splicing components of the magnetic core body 22, or the air gap adjustment component 223 may be selected to be installed in the splicing gap between any two adjacent splicing components, or the air gap adjustment component 223 may be selected not to be installed.

[0054] For example, the air gap adjustment component 223 can be set at the splicing position between two adjacent first magnetic column monomers 2201, or at the splicing position between two adjacent second magnetic column monomers, or at the splicing position between two adjacent third magnetic column monomers; or at the splicing position between the upper magnetic yoke 221 and the middle magnetic column 220; or at the splicing position between the lower magnetic yoke 222 and the middle magnetic column 220. In actual application, the configuration can be selected according to actual needs. Since the air gap adjustment component 223 is made of high thermal conductivity plastic, the heat transfer between the middle magnetic column 220 and the upper and lower magnetic yokes is improved, and the heat of the high-temperature middle magnetic column 220 is transferred to the upper and lower magnetic yokes of low temperature, thereby reducing the maximum temperature rise point of the inductor structure.

[0055] In some other specific embodiments, referring to Figure 3 As shown, an insulating protective film 24 is generally provided between the magnetic core body 22 and the winding 23. In this embodiment, the insulating protective film 24 is preferably designed to be an insulating protective film made of high thermal conductivity insulating plastic. Compared with the traditional insulating paper method, the insulating protective film made of high thermal conductivity insulating plastic improves the heat transfer rate between the magnetic core body 23 and the potting compound while ensuring the insulation level requirements, and quickly conducts the heat of the high-temperature middle column (that is, the area on the magnetic core body 23 corresponding to the installation of the coil, such as the middle magnetic column 220 in the aforementioned scheme) to the potting compound, conducts the heat away, and reduces the temperature of the magnetic core.

[0056] In some more specific embodiments, reference Figure 4-Figure 6The above-mentioned skeleton body 21 can specifically include an upper skeleton 211, a lower skeleton 212 and an intermediate skeleton 213, wherein the upper skeleton 211 is mainly used to install and fix the upper magnetic yoke 221; the lower skeleton 212 is mainly used to install and fix the lower magnetic yoke 222; and the intermediate skeleton 213 is connected between the upper skeleton 211 and the lower skeleton 212, and the intermediate skeleton 213 has a loading cavity 2130 that corresponds one-to-one with the intermediate magnetic column 220, and the loading cavity 2130 is mainly used to install and fix the intermediate magnetic column 220. Since the skeleton body 21 is made of high thermal conductivity insulating plastic, it is designed into the above-mentioned structural form so that the skeleton body 21 can fully contact and transfer heat with each core body of the core body 22. Specifically, the upper skeleton 211 contacts and transfers heat with the upper yoke 221, the lower skeleton 212 contacts and transfers heat with the lower yoke 222, the middle skeleton 213 contacts and transfers heat with the middle magnetic column 220, and can also transfer heat with the winding installed on the middle magnetic column 220. At this time, the middle skeleton 213 can be equivalent to the role of the insulating protective film 24 in the aforementioned scheme. The skeleton body 21 made of high thermal conductivity insulating plastic quickly transfers heat to the potting glue, and then transfers it to the shell 1 through the potting glue, thereby achieving the purpose of reducing temperature rise.

[0057] It should be noted that the upper frame 211, the lower frame 212 and the intermediate frame 213 can be specifically constructed as an integrated structure, such as an integrated injection molding method. The advantage of designing this structural form is that the heat transfer efficiency is higher. Of course, the skeleton body 21 can also be constructed as a split structure, for example, the upper frame 211, the lower frame 212 and the intermediate frame 213 are all split-connected structures, or two of the three are split-connected structures.

[0058] In some more specific embodiments, reference Figure 6 As shown, the skeleton body 21 is preferably designed as a two-part structure with upper and lower parts. Specifically, the intermediate skeleton 213 can be configured as a first split skeleton 2131 and a second split skeleton 2132 arranged in a split manner. The first split skeleton 2131 and the upper skeleton 211 are configured as an integrally formed structure, and the second split skeleton 2132 and the lower skeleton 212 are configured as an integrally formed structure. By designing this structural form, it is more convenient to open the mold when the skeleton body 21 is injection molded.

[0059] In some more specific embodiments, in order to better ensure the glue pouring effect and avoid air retention in some assembly gaps, at least one of the upper frame 211, the lower frame 212 and the middle frame 213 is preferably provided with a first hollow structure for the pouring glue to flow into, that is, one of the upper frame 211, the lower frame 212 and the middle frame 213 may be designed with the first hollow structure, or two of the upper frame 211, the lower frame 212 and the middle frame 213 may be designed with the first hollow structure, or all of the upper frame 211, the lower frame 212 and the middle frame 213 may be designed with the first hollow structure. By designing into the above-mentioned structural form, it can be better ensured that the thermal conductive glue can flow into the assembly gaps at various positions after glue pouring, thereby ensuring the uniform heat transfer effect of the pouring glue and avoiding the problem of excessive local temperature rise.

[0060] In some specific embodiments, reference Figure 7-Figure 10 As shown, the inductor body 2 may further include an insulating heat-conducting block 25 disposed on the side of the winding 23. The insulating heat-conducting block 25 is preferably designed to be an insulating heat-conducting block made of high-thermal-conducting insulating plastic. By designing the insulating heat-conducting block 25 into the above-mentioned structural form, compared with the traditional method of using a ceramic block as an insulating heat-conducting block, the high-density alumina ceramic block (density 2.7g / cc) is replaced with a high-thermal-conducting plastic block (density 1.6g / cc), thereby ensuring heat dissipation while reducing the weight of the product.

[0061] In some specific embodiments, reference Figure 8 As shown, the insulating heat-conducting blocks 25 between two adjacent windings 23 can be connected by heat-conducting bridge pieces 26, which helps to increase the heat transfer area; Fig. 9 As shown, the insulating heat-conducting blocks 25 on the sides (such as the left and right sides) of the winding 23 can also be connected by heat-conducting bridge pieces 26, so that the area in the middle of the winding 23 without the insulating heat-conducting blocks 25 is transferred to the potting glue and the housing 1 through the heat-conducting bridge pieces 26; Fig.10 As shown, the insulating heat-conducting blocks 25 on the sides (such as the left and right sides) of the winding 23 and the insulating heat-conducting blocks 25 between two adjacent windings 23 are overlapped and connected by heat-conducting bridge pieces 26. The heat-conducting bridge pieces 26 are made of high-thermal-conductivity insulating plastic or ceramic. It should be understood by those skilled in the art that the thermal conductivity of the insulating heat-conducting blocks 25 and the heat-conducting bridge pieces 26 is generally better than that of the thermal conductive glue. Therefore, by designing this structure, the insulating heat-conducting blocks 25 are overlapped together by the heat-conducting bridge pieces 26, and then the heat transfer area is larger, so that the heat far away from the shell 1 forms a high heat transfer channel through the insulating heat-conducting blocks 25 and the heat-conducting bridge pieces 26, and then the overall heat conduction efficiency is higher, which solves the problem of excessive local temperature rise caused by heat concentration in some parts of the product.

[0062] In a further embodiment, referring to Figure 8-Figure 10 As shown, the above-mentioned heat-conducting lap joint 26 may be provided with a second hollow structure 260 for the potting glue to flow in. By designing the second hollow structure 260, the potting glue can flow in better to ensure the potting effect. The potting glue plays a role of bonding on the one hand, and transfers heat to the housing 1 on the other hand. It should be noted that the area of ​​the second hollow structure 260 can be selected and designed according to actual needs, and no more specific restrictions are made here. In addition, since the thermal conductivity of the heat-conducting lap joint 26 is generally better than that of the heat-conducting glue, therefore, under the premise of ensuring that the potting glue flows smoothly into the potting, the smaller the area of ​​the second hollow structure 260, the better the thermal conductivity effect.

[0063] It should be noted that the magnetic core body 22 can be designed as Figure 1-Figure 10 In addition to the splicing structure shown, the magnetic core body 22 can also be designed as an integrated structure, such as referring to Fig.11 As shown, the skeleton body 21 is constructed as a net bag structure formed between the magnetic core body 22 and the shell 1. At this time, the magnetic core body 22 is designed to correspond to the magnetic ring, and the winding is wound on the magnetic ring. The net bag structure is made of high thermal conductivity insulating plastic. In addition, the specific structure of the magnetic core body 22 is not limited, and it can be designed into other structural forms according to actual needs, such as a special-shaped structure.

[0064] In addition, the utility model also provides a reactor, including an inductor structure, which is the inductor structure described in any of the above schemes. Since the above inductor structure has the above technical effects, the reactor having the inductor structure should also have corresponding technical effects, which will not be repeated here.

[0065] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0067] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0069] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An inductor structure, comprising a housing (1) and an inductor body (2) encapsulated in the housing (1) by means of glue potting, characterized in that: The inductor body (2) comprises: Skeleton body (21); A magnetic core body (22) and a winding (23) arranged on the magnetic core body (22), both of which are installed on the skeleton body (21) as a whole; Wherein, the skeleton body (21) is a skeleton structure made of high thermal conductivity insulating plastic.

2. The inductor structure according to claim 1, characterized in that: The magnetic core body (22) is constructed as a spliced ​​structure formed by splicing a plurality of magnetic core parts, and a splicing gap is formed between any two adjacent magnetic core parts. The magnetic core body (22) also includes an air gap adjustment component (223), and the air gap adjustment component (223) is used to be selectively arranged in the splicing gap to control the inductance value by adjusting the air gap. The air gap adjustment component (223) is an air gap adjustment component made of high thermal conductivity plastic.

3. The inductor structure according to claim 2, characterized in that: The magnetic core body (22) comprises an upper magnetic yoke (221), a lower magnetic yoke (222), and an intermediate magnetic column (220) spliced ​​between the upper magnetic yoke (221) and the lower magnetic yoke (222), and the winding (23) is arranged on the intermediate magnetic column (220); The middle magnetic column (220) comprises a plurality of first magnetic column monomers (2201) spliced ​​in sequence; and / or the upper magnetic yoke (221) comprises a plurality of second magnetic column monomers spliced ​​in sequence; and / or the lower magnetic yoke (222) comprises a plurality of third magnetic column monomers spliced ​​in sequence; Wherein, the air gap adjustment component (223) is selectively arranged in the splicing gap between any two adjacent splicing components of the magnetic core body (22).

4. The inductor structure according to claim 3, characterized in that: The skeleton body (21) comprises: An upper frame (211) used for mounting and fixing the upper magnetic yoke (221); A lower frame (212) for mounting and fixing the lower magnetic yoke (222); The middle frame (213) is connected between the upper frame (211) and the lower frame (212), and the middle frame (213) has a loading cavity (2130) that is matched one-to-one with the middle magnetic column (220), and the loading cavity (2130) is used to install and fix the middle magnetic column (220).

5. The inductor structure according to claim 4, characterized in that: The upper frame (211), the lower frame (212) and the middle frame (213) are constructed into an integrated structure.

6. The inductor structure according to claim 4, characterized in that: The skeleton body (21) is constructed as a split structure.

7. The inductor structure according to claim 6, characterized in that: The intermediate frame (213) is constructed into a first split frame (2131) and a second split frame (2132) which are arranged in an upper and lower split manner. The first split frame (2131) and the upper frame (211) are constructed into an integrally formed structure, and the second split frame (2132) and the lower frame (212) are constructed into an integrally formed structure.

8. The inductor structure according to claim 4, characterized in that: At least one of the upper frame (211), the lower frame (212) and the middle frame (213) is provided with a first hollow structure for potting glue to flow into.

9. The inductor structure according to claim 1, characterized in that: An insulating protective film (24) is provided between the magnetic core body (22) and the winding (23), and the insulating protective film (24) is an insulating protective film made of high thermal conductivity insulating plastic.

10. The inductor structure according to claim 1, characterized in that: The inductor body (2) further comprises an insulating heat-conducting block (25) arranged on the side of the winding (23); the insulating heat-conducting block (25) is an insulating heat-conducting block made of high thermal conductivity insulating plastic.

11. The inductor structure according to claim 10, characterized in that: The insulating heat-conducting blocks (25) on the sides of the windings (23) are connected via heat-conducting bridge pieces (26); and / or the insulating heat-conducting blocks (25) between two adjacent windings (23) are connected via the heat-conducting bridge pieces (26); Wherein, the thermally conductive bridging piece (26) is a thermally conductive bridging piece made of high thermally conductive insulating plastic or ceramic material.

12. The inductor structure according to claim 11, characterized in that: The heat-conductive overlapping piece (26) is provided with a second hollow structure (260) for the potting glue to flow into.

13. The inductor structure according to claim 1, characterized in that: The magnetic core body (22) is an integrated structure, and the skeleton body (21) is configured as a net bag structure formed between the magnetic core body (22) and the shell (1).

14. A reactor, comprising an inductor structure, characterized in that: The inductor structure is the inductor structure according to any one of claims 1 to 13.

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