Magnetic core assembly fixing structure and transformer

Abstract

The application discloses a magnetic core assembly fixing structure and a transformer, and belongs to the technical field of voltage conversion. The magnetic core assembly fixing structure is used for fixing a winding assembly and a magnetic core assembly. The magnetic core assembly is partially arranged in the winding assembly and partially protrudes out of both sides of the winding assembly along a first direction. The magnetic core assembly fixing structure comprises a magnetic core protection assembly and a support assembly. The magnetic core protection assembly is sleeved on both ends of the magnetic core assembly along the first direction and is located outside the winding assembly. The support assembly is connected with the magnetic core protection assembly. The support assembly is partially arranged on both sides of the winding assembly along the first direction and is insulated and abuts against the winding assembly. The magnetic core assembly fixing structure utilizes the combined action of the support assembly and the magnetic core protection assembly, effectively fixes and limits the magnetic core assembly and the winding assembly, improves the stability of the fixing of the magnetic core assembly and the winding assembly, avoids uneven force on the magnetic core assembly, and effectively reduces the possibility of crushing of the magnetic core assembly.

Description

Technical Field

[0001] This application relates to the field of voltage conversion technology, and in particular to a magnetic core assembly fixing structure and a transformer. Background Technology

[0002] The core structure of a transformer typically includes a core and windings. To ensure structural stability, the core is usually clamped and fixed before the windings are fixed. However, during the clamping and fixing process, the core fixing structure connected by the clamping plates has poor stability and is prone to being crushed. Utility Model Content

[0003] This application provides a magnetic core assembly fixing structure and a transformer, which improves the fixing stability of the magnetic core assembly fixing structure, thereby improving the fixing and protection effect of the magnetic core assembly and effectively preventing the magnetic core from being crushed.

[0004] To achieve the above objectives, according to a first aspect of this application, a magnetic core assembly fixing structure is provided for fixing a magnetic core assembly and a winding assembly. The magnetic core assembly is partially disposed within the winding assembly and partially protrudes beyond both sides of the winding assembly along a first direction. The magnetic core assembly fixing structure includes:

[0005] A magnetic core protection assembly is sleeved on both ends of the magnetic core assembly along the first direction and located outside the winding assembly;

[0006] A support assembly is connected to the magnetic core protection assembly. The support assembly is partially disposed on both sides of the winding assembly along the first direction and is insulated from and abuts against the winding assembly.

[0007] In some embodiments,

[0008] The winding assembly includes a first winding and a second winding arranged at intervals;

[0009] The magnetic core assembly includes:

[0010] The magnetic core body includes a first column and a second column spaced apart. The first column passes through the first winding and partially protrudes outside the first winding; the second column passes through the second winding and partially protrudes outside the second winding.

[0011] The first connecting part is disposed on one side of the winding assembly and abuts against the first column and the second column respectively.

[0012] In some embodiments,

[0013] The magnetic core body includes a second connecting portion, which is disposed on the side of the first column and the second column away from the first connecting portion along the first direction, and is connected to the first column and the second column respectively.

[0014] The magnetic core protection assembly includes:

[0015] The first protective component is connected to the first connecting part;

[0016] The second protective component is spaced apart from the first protective component along the first direction and is connected to the second connecting portion;

[0017] Both the first protective component and the second protective component are connected to the bracket assembly.

[0018] In some embodiments, the core protection assembly further includes:

[0019] The first buffer is sleeved on the end of the first connecting part near the first protective member and is spaced apart between the first connecting part and the first protective member;

[0020] The second buffer is sleeved on the end of the second connecting part near the second protective member, and is spaced between the second connecting part and the second protective member.

[0021] In some embodiments,

[0022] The first protective member has a first receiving cavity, and the first connecting portion is disposed within the first receiving cavity;

[0023] The second protective member has a second receiving cavity, and the second connecting part is disposed in the second receiving cavity.

[0024] In some embodiments,

[0025] The second connecting part is integrally connected to the first column;

[0026] The second connecting part is integrally connected to the second column;

[0027] The first connecting part and the first column are connected separately;

[0028] The first connecting part and the second column are connected separately.

[0029] In some embodiments, the support assembly includes:

[0030] The first clamping group clamps the first winding and the second winding on both sides along the first direction;

[0031] The second clamping group is spaced apart from the first clamping group along the second direction and clamps the first winding and the second winding on both sides along the first direction.

[0032] The first protective member is disposed between the first clamping group and the second clamping group, and is connected to the first clamping group and the second clamping group respectively; the second protective member is disposed between the first clamping group and the second clamping group, and is connected to the first clamping group and the second clamping group respectively; the second direction intersects with the first direction.

[0033] In some embodiments, the first clamping assembly includes:

[0034] The first clamping plate is connected to the first protective component and is insulated from and abuts against the first winding and the second winding;

[0035] The second clamping plate is connected to the second protective component and is spaced apart from the first clamping plate along the first direction. The second clamping plate is insulated from and abuts against the first winding and the second winding respectively.

[0036] Multiple first connectors are spaced apart along a third direction, and each first connector is connected to the first clamping plate and the second clamping plate respectively, so that the first clamping plate and the second clamping plate abut against the first winding and the second winding.

[0037] The first direction, the second direction, and the third direction intersect each other.

[0038] In some embodiments, the second clamping assembly includes:

[0039] The third clamping plate is connected to the first protective component and is insulated from and abuts against the first winding and the second winding; the third clamping plate and the first clamping plate are spaced apart along the second direction;

[0040] The fourth clamping plate is connected to the second protective component and is spaced apart from the third clamping plate along the first direction. The second clamping plate is insulated from and abuts against the first winding and the second winding respectively. The fourth clamping plate and the second clamping plate are spaced apart along the second direction.

[0041] Multiple second connectors are spaced apart along the third direction; each second connector is connected to the third clamping plate and the fourth clamping plate respectively, so that the third clamping plate and the fourth clamping plate abut against the first winding and the second winding.

[0042] In some embodiments,

[0043] The first clamping plate has a first through hole, the second clamping plate has a second through hole, the first connecting member includes a first screw and a plurality of first nuts, the first screw is respectively inserted into the first through hole and the second through hole; at least one first nut is disposed on the side of the first clamping plate away from the second clamping plate and is screwed to the first screw; at least one first nut is disposed on the side of the second clamping plate away from the first clamping plate and is screwed to the first screw.

[0044] The third clamping plate is provided with a third through hole, and the fourth clamping plate is provided with a fourth through hole. The second connecting member includes a second screw and a plurality of second nuts. The second screw passes through the third through hole and the fourth through hole respectively. At least one second nut is provided on the side of the third clamping plate away from the fourth clamping plate and is screwed to the second screw. At least one second nut is provided on the side of the fourth clamping plate away from the third clamping plate and is screwed to the second screw.

[0045] In some embodiments, the magnetic core assembly is a ferrite core.

[0046] According to a second aspect of this application, a transformer is provided, the transformer including a core assembly fixing structure as described in any of the foregoing embodiments.

[0047] This application discloses a core assembly fixing structure and a transformer. The core assembly fixing structure is used to fix a winding assembly and a core assembly. A portion of the core assembly passes through the winding assembly, and a portion protrudes beyond both sides of the winding assembly along a first direction. The core assembly fixing structure includes a core protection assembly and a support assembly. The core protection assembly is sleeved on both ends of the core assembly along the first direction and located outside the winding assembly. The support assembly is connected to the core protection assembly, and a portion of the support assembly is located on both sides of the winding assembly along the first direction, insulatingly abutting against the winding assembly. This application, by setting the core protection assembly on both ends of the core assembly, and utilizing the connection between the support assembly and the core protection assembly, and the abutting against the winding assembly, effectively fixes and limits the core assembly and winding assembly, improving the stability of the fixation. Simultaneously, it reduces uneven stress on the core assembly, effectively reducing the possibility of the core assembly being crushed.

[0048] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0051] Figure 1 This is a schematic diagram of the overall structure of a magnetic core assembly fixing structure provided in an exemplary embodiment of this disclosure;

[0052] Figure 2 This is a top view of a magnetic core assembly fixing structure provided in an exemplary embodiment of this disclosure;

[0053] Figure 3 yes Figure 2 A sectional view along section line AA;

[0054] Figure 4 yes Figure 2 A sectional view along section line BB;

[0055] Figure 5 yes Figure 2 A sectional view along the CC section line;

[0056] Figure 6 This is a schematic diagram of the structure of a magnetic core assembly with a magnetic core assembly fixing structure provided in an exemplary embodiment of this disclosure;

[0057] Figure 7 This is a schematic diagram of the structure of the first protective member of a magnetic core assembly fixing structure provided in an exemplary embodiment of this disclosure;

[0058] Figure 8 This is a schematic diagram of the structure of the second protective component of a magnetic core assembly fixing structure provided in an exemplary embodiment of this disclosure.

[0059] Explanation of reference numerals in the attached figures:

[0060] 100. Winding assembly; 110. First winding; 120. Second winding;

[0061] 200. Magnetic core assembly; 210. Magnetic core body; 211. First column; 212. Second column; 213. Second connecting part; 220. First connecting part;

[0062] 300. Magnetic core protection assembly; 310. First protective component; 311. First receiving cavity; 320. Second protective component; 321. Second receiving cavity; 330. First buffer component; 340. Second buffer component;

[0063] 400, Support assembly; 410, First clamping group; 411, First clamping plate; 4111, First through hole; 412, Second clamping plate; 4121, Second through hole; 413, First connector; 4131, First screw; 4132, First nut; 420, Second clamping group; 421, Third clamping plate; 4211, Third through hole; 422, Fourth clamping plate; 4221, Fourth through hole; 423, Second connector; 4231, Second screw; 4232, Second nut;

[0064] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0066] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular, for example, the range of included angles from 80° to 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel, for example, the range of completely parallel angles from 10° is considered parallel.

[0067] It should also be noted that, in this embodiment, an arrow labeled X indicates the first direction X, an arrow labeled Y indicates the second direction Y, and an arrow labeled Z indicates the third direction Z. The first direction X can be the length direction of the first column 211 and the second column 212, the second direction Y can be the arrangement direction of the first clamping group 410 and the second clamping group 420, and the third direction Z can be the arrangement direction of the first winding 110 and the second winding 120. The first direction X, the second direction Y, and the third direction Z are introduced to more clearly describe the structural positional relationships of the components of the battery pack. Specifically, the first direction X, the second direction Y, and the third direction Z intersect each other, and further, they are perpendicular to each other.

[0068] In related technologies, the internal magnetic core structure of a transformer mainly consists of a magnetic core, clamps, tie rods, and windings. The magnetic core is clamped by clamps, and then locked in place by tie rods passing through the clamps. Currently, the main magnetic core material is silicon steel sheets, primarily used in power frequency transformers, but not suitable for medium-frequency or high-frequency transformers, and the entire core structure is bulky. Ferrite cores are suitable for medium-frequency and high-frequency transformers. However, the method of directly locking the magnetic core using clamps and tie rods is not suitable for ferrite cores. Ferrite cores are relatively brittle; if the clamps are in direct contact with the ferrite, they may crush the ferrite during the locking process. Insufficient clamping force can also lead to poor stability.

[0069] In view of this, embodiments of this application provide a magnetic core assembly fixing structure and a transformer, which aim to solve at least one of the above problems.

[0070] Please refer to the following: Figure 1 , Figure 2 and Figure 3 This application provides a magnetic core assembly fixing structure for fixing a winding assembly 100 and a magnetic core assembly 200. The magnetic core assembly 200 is partially inserted into the winding assembly 100 and partially protrudes from both sides of the winding assembly 100 along the first direction X. The magnetic core assembly fixing structure includes a magnetic core protection assembly 300 and a support assembly 400. The magnetic core protection assembly 300 is sleeved on both ends of the magnetic core assembly 200 along the first direction X and is located outside the winding assembly 100. The support assembly 400 is connected to the magnetic core protection assembly 300 and is partially disposed on both sides of the winding assembly 100 along the first direction X, and is insulated from and abuts against the winding assembly 100.

[0071] In this embodiment, by setting a magnetic core protection component 300 sleeved on both ends of the magnetic core component 200, and using a bracket component 400 connected to the magnetic core protection component 300 and abutting against the winding component 100, the combined action of the bracket component 400 and the magnetic core protection component effectively fixes and limits the magnetic core component 200 and the winding component 100, effectively improving the stability of fixing the magnetic core component and the winding component 100; at the same time, it reduces the uneven force on the magnetic core component 200, and while ensuring the stable fixing of the magnetic core component 200 and the winding component 100, it effectively reduces the possibility of the magnetic core component 200 being crushed.

[0072] Specifically, in this embodiment, the core protection component 300 is located on both sides of the winding assembly 100 along the first direction X and is sleeved on both ends of the core assembly 200. The core protection component 300 is then connected to the support assembly 400. The support assembly 400 abuts against the winding assembly 100, thus clamping and fixing the winding assembly 100. The fixing of the core protection component 300 by the support assembly 400 indirectly fixes the core assembly 200. The contact area between the core protection component 300 and the core assembly 200 is large, and the core assembly 200 is subjected to uniform force, effectively reducing the possibility of the core being crushed.

[0073] It can be understood that, compared to the clamping force acting directly on the magnetic core assembly 200, this application transfers the clamping force to the winding assembly 100 clamped along the first direction X. From the perspective of the force transmission path, this avoids the magnetic core directly bearing the clamping force, thereby reducing magnetic core damage.

[0074] It should be noted that the support assembly 400 of this application can be symmetrically arranged on both sides of the magnetic core protection assembly 300, or the support assembly 400 can be arranged around the outer periphery of the magnetic core protection assembly 300. In this case, the support assembly 400 can apply force evenly to the magnetic core protection assembly 300, thereby achieving uniform force on the magnetic core assembly 200. This can ensure that the magnetic core assembly 200 is subjected to uniform force, which can further reduce the possibility of magnetic core breakage.

[0075] It should also be noted that, in this embodiment of the application, the magnetic core protection component 300 and the bracket component 400 are used to fix the magnetic core component 200 and the winding component 100, and to effectively protect the magnetic core component 200. The overall structure is simple and easy to assemble, which can effectively reduce the volume and assembly difficulty of the magnetic core structure and facilitate later maintenance.

[0076] It should also be noted that the bracket assembly 400 and the winding assembly 100 in this embodiment of the application are insulated from each other, which on the one hand ensures the effective fixation of the winding assembly 100, and on the other hand can cut off the conductive circuit between the bracket assembly 400 and the winding assembly 100, thereby reducing turbine losses.

[0077] In some embodiments, the support assembly 400 may be made entirely of insulating material, or insulating material may be provided at the portion of the support assembly 400 that contacts the winding assembly 100. Optionally, the core protection assembly 300 may also be made of insulating material.

[0078] Furthermore, in some embodiments, the core assembly 200 is a ferrite core.

[0079] In this embodiment, by setting the magnetic core assembly 200 as a ferrite core, the ferrite core can be used in medium and high frequency transformers, thus expanding the application range of the transformer. Simultaneously, the overall structure of the ferrite core is simpler. Furthermore, compared to the traditional silicon steel sheet stacked structure, the ferrite core reduces complex stacking and clamping processes, making overall assembly simpler.

[0080] Please refer to the following: Figure 4 and Figure 6 In some embodiments, the winding assembly 100 includes a first winding 110 and a second winding 120 spaced apart; the magnetic core assembly 200 includes a magnetic core body 210 and a first connecting portion 220. The magnetic core body 210 includes a first column 211 and a second column 212 spaced apart. The first column 211 passes through the first winding 110 and partially protrudes outside the first winding 110; the second column 212 passes through the second winding 120 and partially protrudes outside the second winding 120; the first connecting portion 220 is disposed on one side of the winding assembly 100 and abuts against the first column 211 and the second column 212 respectively.

[0081] In this embodiment, the magnetic core assembly 200 is configured as two parts: a magnetic core body 210 and a first connecting portion 220. This separate configuration facilitates the winding process, allowing the winding to be fitted onto the magnetic core body 210 after winding. The overall structure is simplified. After the winding assembly 100 and the magnetic core assembly 200 are assembled, the magnetic core protection assembly 300 is fitted onto the magnetic core body 210 and the first connecting portion 220. Then, the support assembly 400 pulls the magnetic core protection assembly 300 to achieve contact between the first connecting portion 220 and the first pillar 211 and the second pillar 212, thus forming a complete closed structure for the magnetic core assembly 200. This facilitates the magnetic core assembly 200 in fulfilling its function as a magnetic core.

[0082] It should be noted that in this application, the magnetic core assembly 200 is covered by the magnetic core protection assembly 300, and then connected to the support assembly 400 by the magnetic core protection assembly 300. When the support assembly 400 clamps the winding assembly 100, it drives the magnetic core protection assembly 300 to clamp and fix the magnetic core assembly 200, thereby realizing the contact between the first connecting part 220 and the first column 211 and the second column 212, thus ensuring the closed magnetic circuit of the magnetic core assembly 200.

[0083] Specifically, the split column and winding configuration of this embodiment allows the assembly process to be performed in steps: first, the first winding 110 is fitted onto the first column 211, then the second winding 120 is fitted onto the second column 212, and finally the two columns are connected by the first connecting part 220. This reduces the alignment difficulty during the assembly of the traditional integral magnetic core and winding (especially when the winding is tightly wound, inserting the entire core can easily lead to insulation wear). During maintenance, if a winding fails (such as an inter-turn short circuit), the corresponding column and winding can be disassembled and replaced separately without replacing the entire magnetic core assembly 200, thus reducing maintenance costs. Combined with the magnetic core protection component 300 protecting both ends of the magnetic core assembly 200, the risk of magnetic core damage can be further reduced during assembly and maintenance, maintaining a high yield rate.

[0084] It is understandable that one of the first winding 110 and the second winding 120 can be a high-voltage winding and the other can be a low-voltage winding, which enables the transformer to perform pressure transformation.

[0085] Please refer to the following: Figure 3 , Figure 4 and Figure 6 In some embodiments, the magnetic core body 210 includes a second connecting portion 213, which is disposed on the side of the first column 211 and the second column 212 away from the first connecting portion 220 along the first direction X, and is connected to the first column 211 and the second column 212 respectively; the magnetic core protection assembly 300 includes a first protective member 310 and a second protective member 320, the first protective member 310 is connected to the first connecting portion 220, and the second protective member 320 is spaced apart from the first protective member 310 along the first direction X and is connected to the second connecting portion 213; wherein, both the first protective member 310 and the second protective member 320 are connected to the bracket assembly 400.

[0086] In this embodiment of the application, by providing a second connecting part 213 to connect to the first column 211 and the second column 212 respectively, the magnetic core body 210 is formed into a U-shaped structure, which makes it easier to install and fix the first winding 110 and the second winding 120.

[0087] In this embodiment, the second connecting part 213 can be opposite to and spaced apart from the first connecting part 220, so that the magnetic core body 210 and the first connecting part 220 abut against each other to form a frame structure. Correspondingly, the first protective member 310 and the second protective member 320 are respectively connected to the first connecting part 220 and the second connecting part 213, forming a double protection with intervals along the first direction X, so as to ensure the overall contact area and stress stability.

[0088] In this embodiment, the bracket assembly 400 fixes the first protective member 310 and the second protective member 320, thereby achieving stability after the first connecting part 220 is aligned with the first column 211 and the second column 212.

[0089] like Figure 3 As shown, in some embodiments, the magnetic core protection assembly 300 further includes a first buffer 330 and a second buffer 340. The first buffer 330 is sleeved on the end of the first connecting portion 220 near the first protective member 310 and is spaced apart between the first connecting portion 220 and the first protective member 310. The second buffer 340 is sleeved on the end of the second connecting portion 213 near the second protective member 320 and is spaced apart between the second connecting portion 213 and the second protective member 320.

[0090] In this embodiment, by providing a first buffer 330 and a second buffer 340, rigid contact between the first connecting portion 220 and the first protective member 310, and between the second connecting portion 213 and the second protective member 320, is avoided, thereby achieving further effective protection for the magnetic core assembly 200. Especially for ferrite cores, this further reduces the possibility of ferrite core breakage.

[0091] It is understood that both the first buffer 330 and the second buffer 340 can be rubber parts, possessing a certain structural strength and sufficient cushioning capacity. Preferably, the first buffer 330 and the second buffer 340 can be cubic protective sleeves, covering the outer wall of the connection and the side away from the column, thereby achieving effective spacing protection.

[0092] Please refer to the following: Figure 4 , Figure 7 and Figure 8 In some embodiments, the first protective member 310 has a first receiving cavity 311, and the first connecting portion 220 is disposed in the first receiving cavity 311; the second protective member 320 has a second receiving cavity 321, and the second connecting portion 213 is disposed in the second receiving cavity 321.

[0093] In this embodiment of the application, by providing a first receiving cavity 311 in the first protective member 310 and a second receiving cavity 321 in the second protective member 320, the first connecting part 220 and the second connecting part 213 of the magnetic core body 210 can be accommodated, thereby achieving a better fixing and protection effect on the magnetic core assembly 200.

[0094] like Figure 6 As shown, in some embodiments, the second connecting part 213 is integrally connected to the first column 211, and the second connecting part 213 is integrally connected to the second column 212; the first connecting part 220 is separately connected to the first column 211; and the first connecting part 220 is separately connected to the second column 212.

[0095] In this embodiment, the second connecting part 213 is integrally connected to the first column 211 and the second column 212 respectively. This can further ensure the overall structural stability of the magnetic core body 210, reduce the overall assembly difficulty of the magnetic core structure, and reduce the manufacturing difficulty of the magnetic core assembly 200.

[0096] In this embodiment of the application, the first connecting part 220 is set to be separately connected to the first column 211 and the second column 212. At this time, the first connecting part 220 can be pre-assembled with the first buffer 330 and the first protective member 310. At the same time, the first protective member 310 can also be pre-assembled and connected with the first clamping plate 411 and the third clamping plate 421, which can improve the convenience of assembly.

[0097] Please refer to the following: Figure 1 and Figure 5 In some embodiments, the support assembly 400 includes a first clamping group 410 and a second clamping group 420. The first clamping group 410 clamps the first winding 110 and the second winding 120 on both sides along the first direction X. The second clamping group 420 is spaced apart from the first clamping group 410 along the second direction Y and clamps the first winding 110 and the second winding 120 on both sides along the first direction X. A first protective member 310 is disposed between the first clamping group 410 and the second clamping group 420 and is connected to both the first clamping group 410 and the second clamping group 420 respectively. The second protective member 320 is disposed between the first clamping group 410 and the second clamping group 420 and is connected to both the first clamping group 410 and the second clamping group 420 respectively. The second direction Y intersects the first direction X.

[0098] In this embodiment, the bracket assembly 400 is configured as a first clamping group 410 and a second clamping group 420 arranged opposite to each other, which can realize multi-point fixation of the protection assembly and the winding assembly 100, and effectively improve the overall stability of the magnetic core assembly fixing structure.

[0099] Specifically, in this embodiment, the first clamping group 410 and the second clamping group 420 clamp the winding assembly 100 along the first direction X, and then are fixedly connected to the first protective member 310 and the second protective member 320 along the second direction Y. At the same time, the magnetic core assembly 200 passes through the winding assembly 100 along the first direction X, thereby achieving effective limiting and fixing of the magnetic core assembly 200 and the winding assembly 100 along the first direction X and the second direction Y.

[0100] Meanwhile, the first protective component 310 and the second protective component 320 are clamped between and connected to the two sets of clamping groups, so that the magnetic core protection assembly 300 and the bracket assembly 400 form a rigid whole, preventing loosening between the protective component and the magnetic core connection part, and ensuring continuous protection of the vulnerable parts of the magnetic core.

[0101] Understandably, the first protective element 310 and the second protective element 320 are connected to the two sets of clamping groups respectively, so that the fixing force of the bracket on the magnetic core is evenly transmitted to the first connecting part 220 and the second connecting part 213 of the magnetic core through the protective elements. Since the two sets of clamping groups are distributed at intervals along the second direction Y, the clamping force of the bracket assembly 400 is evenly distributed, avoiding local stress concentration on the magnetic core, further reducing the risk of ferrite core breakage, and ensuring the integrity of the magnetic core structure during long-term use.

[0102] Please refer to the following: Figure 1 , Figure 3 and Figure 5 In some embodiments, the first clamping assembly 410 includes a first clamping plate 411, a second clamping plate 412, and a plurality of first connecting members 413. The first clamping plate 411 is connected to the first protective member 310 and is insulated from and abuts against the first winding 110 and the second winding 120. The second clamping plate 412 is connected to the second protective member 320 and is spaced apart from the first clamping plate 411 along the first direction X. The second clamping plate 412 is insulated from and abuts against the first winding 110 and the second winding 120 respectively. The plurality of first connecting members 413 are spaced apart along the third direction Z. Each first connecting member 413 is connected to the first clamping plate 411 and the second clamping plate 412 respectively, so that the first clamping plate 411 and the second clamping plate 412 abut against the first winding 110 and the second winding 120 respectively. The first direction X, the second direction Y, and the third direction Z intersect each other.

[0103] In this embodiment, by configuring the first clamping assembly 410 with the first clamping plate 411 and the second clamping plate 412 clamping each other, both the first clamping plate 411 and the second clamping plate 412 are in surface contact with the first winding 110 and the second winding 120. This ensures a large contact area, thereby achieving better uniform force distribution and maintaining a good clamping effect. Simultaneously, multiple first connectors 413 are spaced apart and connected to the first clamping plate 411 and the second clamping plate 412, achieving multi-point fixed connection of the first clamping plate 411 and the second clamping plate 412. This further maintains the uniformity of the clamping force distribution after the first clamping plate 411 and the second clamping plate 412 are connected.

[0104] Furthermore, in this embodiment, at least one first connector 413 is located on the side of the first winding 110 away from the second winding 120 along the third direction Z, and at least one first connector 413 is located on the side of the second winding 120 away from the first winding 110 along the third direction Z. This ensures that the winding assembly 100 can also maintain a good clamping force on both sides along the third direction Z, thereby further maintaining the stability of fixing the winding assembly 100.

[0105] Please refer to the following: Figure 1 , Figure 3 and Figure 5 In some embodiments, the second clamping assembly 420 includes a third clamping plate 421, a fourth clamping plate 422, and a plurality of second connectors 423. The third clamping plate 421 is connected to the first protective member 310 and is insulated from and abuts against the first winding 110 and the second winding 120. The third clamping plate 421 and the first clamping plate 411 are spaced apart along the second direction Y. The fourth clamping plate 422 is connected to the second protective member 320 and is spaced apart from the third clamping plate 421 along the first direction X. The second clamping plate 412 is insulated from and abuts against the first winding 110 and the second winding 120, respectively. The fourth clamping plate 422 and the second clamping plate 412 are spaced apart along the second direction Y. The plurality of second connectors 423 are spaced apart along the third direction Z. Each second connector 423 is connected to the third clamping plate 421 and the fourth clamping plate 422, so that the third clamping plate 421 and the fourth clamping plate 422 abut against the first winding 110 and the second winding 120.

[0106] In this embodiment, by configuring the second clamping assembly 420 into a structure where the third clamping plate 421 and the fourth clamping plate 422 clamp each other facing each other, and both the third clamping plate 421 and the fourth clamping plate 422 are in surface contact with the first winding 110 and the second winding 120, a larger contact area can be ensured, thereby achieving better uniform force distribution and maintaining a better clamping effect. Simultaneously, by using multiple second connectors 423 spaced apart and connected to the third clamping plate 421 and the fourth clamping plate 422, a multi-point fixed connection of the third clamping plate 421 and the fourth clamping plate 422 can be achieved, further maintaining the uniformity of the clamping force distribution after the connection of the third clamping plate 421 and the fourth clamping plate 422.

[0107] Furthermore, in this embodiment of the application, at least one second connector 423 is located on the side of the first winding 110 away from the second winding 120 along the third direction Z, and at least one second connector 423 is located on the side of the second winding 120 away from the first winding 110 along the third direction Z. This ensures that the winding assembly 100 can also maintain a good clamping force on both sides along the third direction Z, thereby further maintaining the stability of fixing the winding assembly 100.

[0108] It should be noted that in the embodiments of this application, the first clamping plate 411, the second clamping plate 412, the third clamping plate 421 and the fourth clamping plate 422 are all insulated from the winding assembly 100. At this time, the insulation between the support assembly 400 and the winding assembly 100 can be guaranteed, and the eddy current loss can be reduced.

[0109] like Figure 5 As shown, in some embodiments, the first clamping plate 411 is provided with a first through hole 4111, the second clamping plate 412 is provided with a second through hole 4121, and the first connecting member 413 includes a first screw 4131 and a plurality of first nuts 4132. The first screw 4131 is respectively inserted into the first through hole 4111 and the second through hole 4121; at least one first nut 4132 is disposed on the side of the first clamping plate 411 away from the second clamping plate 412 and is screwed to the first screw 4131; at least one first nut 4132 is disposed on the side of the second clamping plate 412 away from the first clamping plate 411 and is screwed to the first screw 4131. 131 Screw connection; the third clamping plate 421 is provided with a third through hole 4211, the fourth clamping plate 422 is provided with a fourth through hole 4221, the second connecting member 423 includes a second screw 4231 and a plurality of second nuts 4232, the second screw 4231 is respectively inserted into the third through hole 4211 and the fourth through hole 4221; at least one second nut 4232 is provided on the side of the third clamping plate 421 away from the fourth clamping plate 422 and screwed to the second screw 4231; at least one second nut 4232 is provided on the side of the fourth clamping plate 422 away from the third clamping plate 421 and screwed to the second screw 4231.

[0110] In this embodiment, by configuring the first connector 413 as a structure where the first screw 4131 and the first nut 4132 cooperate, and configuring the second connector 423 as a structure where the second screw 4231 and the second nut 4232 cooperate, it is equivalent to both the first connector 413 and the second connector 423 being pull rod structures. By tightening the first nuts 4132 on both sides of the first clamping plate 411 and the second clamping plate 412, the first clamping plate 411 and the second clamping plate 412 are clamped towards each other. Similarly, by tightening the second nuts 4232 on both sides of the third clamping plate 421 and the fourth clamping plate 422, the third clamping plate 421 and the fourth clamping plate 422 are clamped towards each other. This facilitates locking and fixing the winding assembly 100 as needed. Furthermore, this connection structure has higher overall structural strength and better maintains the structural stability of the core assembly after fixation. Additionally, using a pull rod structure for fixing also facilitates subsequent disassembly and replacement.

[0111] This application also provides a transformer, which includes a core assembly fixing structure as described in any of the foregoing embodiments.

[0112] It is understood that the transformer in the embodiments of this application includes all the technical features and effects of the aforementioned magnetic core structure, which will not be repeated here.

[0113] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0114] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0115] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A magnetic core assembly fixing structure, characterized in that, For fixing the magnetic core assembly (200) and the winding assembly (100), the magnetic core assembly (200) is partially inserted into the winding assembly (100) and partially protrudes from both sides of the winding assembly (100) along the first direction (X); The core assembly fixing structure includes: A magnetic core protection assembly (300) is sleeved on both ends of the magnetic core assembly (200) along the first direction (X) and located outside the winding assembly (100); A support assembly (400) is connected to the magnetic core protection assembly (300). The support assembly (400) is partially disposed on both sides of the winding assembly (100) along the first direction (X) and is insulated from the winding assembly (100).

2. The magnetic core assembly fixing structure according to claim 1, characterized in that, The winding assembly (100) includes a first winding (110) and a second winding (120) arranged at intervals; The magnetic core assembly (200) includes: The magnetic core body (210) includes a first column (211) and a second column (212) spaced apart. The first column (211) passes through the first winding (110) and partially protrudes outside the first winding (110); the second column (212) passes through the second winding (120) and partially protrudes outside the second winding (120). The first connecting part (220) is disposed on one side of the winding assembly (100) and abuts against the first column (211) and the second column (212) respectively.

3. The magnetic core assembly fixing structure according to claim 2, characterized in that, The magnetic core body (210) includes a second connecting part (213), which is disposed on the side of the first column (211) and the second column (212) away from the first connecting part (220) along the first direction (X), and is connected to the first column (211) and the second column (212) respectively. The magnetic core protection assembly (300) includes: The first protective component (310) is connected to the first connecting part (220); The second protective member (320) is spaced apart from the first protective member (310) along the first direction (X) and is connected to the second connecting part (213); The first protective component (310) and the second protective component (320) are both connected to the bracket assembly (400).

4. The magnetic core assembly securing structure of claim 3, wherein The magnetic core protection assembly (300) also includes: The first buffer (330) is sleeved on the end of the first connecting part (220) near the first protective part (310) and is spaced between the first connecting part (220) and the first protective part (310); The second buffer (340) is sleeved on the end of the second connecting part (213) near the second protective part (320) and is spaced between the second connecting part (213) and the second protective part (320).

5. The magnetic core assembly fixing structure according to claim 3, characterized in that, The first protective member (310) has a first receiving cavity (311), and the first connecting part (220) is disposed in the first receiving cavity (311); The second protective member (320) has a second receiving cavity (321), and the second connecting part (213) is disposed in the second receiving cavity (321).

6. The magnetic core assembly fixing structure according to claim 3, characterized in that, The second connecting part (213) is integrally connected to the first column (211); The second connecting part (213) is integrally connected to the second column (212); The first connecting part (220) and the first column (211) are connected separately; The first connecting part (220) and the second column (212) are connected separately.

7. The magnetic core assembly securing structure of claim 3, wherein The support assembly (400) includes: The first clamping assembly (410) clamps the first winding (110) and the second winding (120) on both sides along the first direction (X); The second clamping group (420) is spaced apart from the first clamping group (410) along the second direction (Y) and clamps the first winding (110) and the second winding (120) on both sides along the first direction (X); The first protective member (310) is disposed between the first clamping group (410) and the second clamping group (420), and is connected to the first clamping group (410) and the second clamping group (420) respectively; the second protective member (320) is disposed between the first clamping group (410) and the second clamping group (420), and is connected to the first clamping group (410) and the second clamping group (420) respectively; the second direction (Y) intersects the first direction (X).

8. The magnetic core assembly securing structure of claim 7, wherein The first clamping assembly (410) includes: The first clamping plate (411) is connected to the first protective member (310) and is insulated from the first winding (110) and the second winding (120); The second clamping plate (412) is connected to the second protective member (320) and is spaced apart from the first clamping plate (411) along the first direction (X). The second clamping plate (412) is insulated from the first winding (110) and the second winding (120) respectively. Multiple first connectors (413) are spaced apart along a third direction (Z). Each first connector (413) is connected to the first clamping plate (411) and the second clamping plate (412) respectively, so that the first clamping plate (411) and the second clamping plate (412) abut against the first winding (110) and the second winding (120). The first direction (X), the second direction (Y), and the third direction (Z) intersect each other.

9. The magnetic core assembly securing structure of claim 8, wherein The second clamping assembly (420) includes: The third clamping plate (421) is connected to the first protective member (310) and is insulated from the first winding (110) and the second winding (120); the third clamping plate (421) and the first clamping plate (411) are spaced apart along the second direction (Y); The fourth clamping plate (422) is connected to the second protective member (320) and is spaced apart from the third clamping plate (421) along the first direction (X). The second clamping plate (412) is insulated from and abuts against the first winding (110) and the second winding (120) respectively. The fourth clamping plate (422) and the second clamping plate (412) are spaced apart along the second direction (Y). Multiple second connectors (423) are spaced apart along the third direction (Z); each second connector (423) is connected to the third clamping plate (421) and the fourth clamping plate (422) respectively, so that the third clamping plate (421) and the fourth clamping plate (422) abut against the first winding (110) and the second winding (120).

10. The magnetic core assembly fixing structure according to claim 9, characterized in that, The first clamping plate (411) is provided with a first through hole (4111), the second clamping plate (412) is provided with a second through hole (4121), and the first connecting member (413) includes a first screw (4131) and a plurality of first nuts (4132). The first screw (4131) is respectively inserted into the first through hole (4111) and the second through hole (4121); at least one first nut (4132) is disposed on the side of the first clamping plate (411) away from the second clamping plate (412) and is screwed to the first screw (4131); at least one first nut (4132) is disposed on the side of the second clamping plate (412) away from the first clamping plate (411) and is screwed to the first screw (4131). The third clamping plate (421) is provided with a third through hole (4211), and the fourth clamping plate (422) is provided with a fourth through hole (4221). The second connector (423) includes a second screw (4231) and a plurality of second nuts (4232). The second screw (4231) is respectively inserted into the third through hole (4211) and the fourth through hole (4221). At least one second nut (4232) is disposed on the side of the third clamping plate (421) away from the fourth clamping plate (422) and is screwed to the second screw (4231). At least one second nut (4232) is disposed on the side of the fourth clamping plate (422) away from the third clamping plate (421) and is screwed to the second screw (4231).

11. The magnetic core assembly securing structure of any one of claims 1 to 10, wherein The magnetic core assembly (200) is a ferrite magnetic core.

12. A transformer, characterized by Includes the core assembly fixing structure as described in any one of claims 1 to 11.

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