Ultra-thin ultra-large-current copper-magnetic co-fired power inductor

Abstract

The invention relates to the field of inductance equipment, and discloses an ultra-thin ultra-large-current copper-magnetic co-fired power inductor which solves the problem that the heat dissipation intensity and the disassembly and assembly convenience degree of an existing inductor shell are not easy to adjust according to needs, the ultra-thin ultra-large-current copper-magnetic co-fired power inductor comprises a magnetic core and a copper plate, and the magnetic core is formed on the outer side of the copper plate in a pressing mode. The two ends of the copper plate are located on the two sides of the magnetic core respectively, the outer side of the magnetic core is provided with a shell mechanism used for protecting the magnetic core, the shell mechanism comprises a heat dissipation shell and an installation shell, when the heat dissipation shell and the installation shell are combined into the shell mechanism, installation convenience is high, and when the two heat dissipation shells are combined into the shell mechanism, heat dissipation efficiency is high. The heat dissipation shell comprises a first shell body, and fixed heat dissipation fin plates are installed on the upper side and the lower side of the first shell body at equal intervals. Through combined use of the two shells, the heat dissipation efficiency can be adjusted according to the inductor use condition, meanwhile, the shell assembly efficiency can be adjusted, and disassembly, assembly and maintenance are convenient.

Description

Technical Field

[0001] The present invention belongs to the field of inductance devices, and specifically relates to an ultra-thin and ultra-high-current copper-magnetic co-fired power inductor. Background Art

[0002] According to the patent document with the authorization announcement number "CN112735797B" and the invention name "An integrated co-fired inductor and its preparation method and application", it is recorded in the specification: The existing integrally formed inductor includes a base body and a winding body. The base body is formed by die-casting the winding body into the interior of metal magnetic powder. Its winding is usually a single-layer or multi-layer coil coated with a lacquer film. For the inductor prepared by this method, only low-temperature baking can be used to cure the glue in the magnetic powder to improve the inductance strength. The internal stress during the forming of the inductor cannot be released, and its power consumption is relatively high, which is suitable for low-frequency conditions. The loss of metal magnetic powder mainly consists of hysteresis loss and eddy current loss. While reducing the eddy current loss, it will cause an increase in hysteresis loss, and this problem is difficult to solve simultaneously. After the production of the ultra-thin and ultra-high-current copper-magnetic co-fired power inductor, generally, a housing needs to be provided outside the magnetic core to protect the inductor, but there are still the following defects: After setting the housing outside the magnetic core, it is not easy to adjust the heat dissipation intensity and the convenience of disassembly and assembly of the housing as needed. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an ultra-thin and ultra-high-current copper-magnetic co-fired power inductor, effectively solving the problem that it is not easy to adjust the heat dissipation intensity and the convenience of disassembly and assembly of the inductor housing as needed.

[0004] To achieve the above object, the present invention provides the following technical solution: An ultra-thin and ultra-high-current copper-magnetic co-fired power inductor, including a magnetic core and a copper plate. The magnetic core is formed by pressing on the outer side of the copper plate, and both ends of the copper plate are located on both sides of the magnetic core respectively. An outer shell mechanism for protecting the magnetic core is provided on the outer side of the magnetic core; The outer shell mechanism includes a heat dissipation housing and an installation housing. When the heat dissipation housing and the installation housing are combined into the outer shell mechanism, the installation convenience is high. When two heat dissipation housings are combined into the outer shell mechanism, the heat dissipation efficiency is high; The heat dissipation housing includes a first housing. Fixed heat dissipation fins are evenly installed on the upper and lower sides of the first housing. A rotating heat dissipation member for adjusting the heat dissipation efficiency is provided at the end of the fixed heat dissipation fins. Installation plates are symmetrically installed on both sides of the first housing, and two first housings are connected and fixed through the installation plates and bolts; The installation housing includes a second housing. Slots are evenly opened on the upper and lower sides of the second housing. The first housing and the second housing are fixedly connected through the slots.

[0005] Preferably, end slots are provided at one end of the first housing and one end of the second housing, and both ends of the copper plate pass through the two end slots to the outside of the housing mechanism.

[0006] Preferably, the rotating heat dissipation member includes a rotating shaft, on which rotating heat dissipation fins are equidistantly installed. A close-fitting heat dissipation member is arranged inside the rotating heat dissipation fins. The rotating heat dissipation fins and the fixed heat dissipation fins are arranged alternately. End blocks are symmetrically and fixedly installed at both ends of the rotating shaft. Two positioning slots are symmetrically provided on the side of the end block away from the rotating shaft. Positioning self-locking members are installed on both sides of the first housing, and the positioning self-locking members are used for clamping and fixing the rotating heat dissipation fins. A clamping block is fixedly installed at the end of the rotating heat dissipation fin away from the rotating shaft.

[0007] Preferably, the rotating shaft is rotatably installed inside a rotating slot, and the rotating slot is provided at one end of the fixed heat dissipation fin away from the end slot. Limiting plates are symmetrically arranged on both sides of the fixed heat dissipation fin, and the limiting plates are fixedly installed on the rotating shaft.

[0008] . According to the claim, the ultra-thin and extra-large current copper-magnetic co-fired power inductor is characterized in that: the positioning self-locking member includes activity slots symmetrically provided inside both sides of the first housing. An activity plate is movably installed inside the activity slots. Connecting rods are installed on the sides of the two activity plates away from each other. The ends of the connecting rods penetrate to the outside of the first housing, and a connecting plate is fixedly installed at the ends of the connecting rods. Positioning blocks are installed at both ends of the connecting plate.

[0009] Preferably, the positioning block corresponds to the positioning slot on the side of the end block close to the first housing. A handle is installed on the connecting plate. First springs are symmetrically installed on the side of the activity plate close to the connecting plate, and one end of each first spring is fixedly connected to the inner wall of the activity slot.

[0010] Preferably, the close-fitting heat dissipation member includes an inner cavity provided inside the rotating heat dissipation fin. Communication slots are provided on both the upper and lower sides of the inner cavity. Two heat conducting plates are movably installed inside the inner cavity. Heat conducting columns are equidistantly installed on the sides of the upper and lower heat conducting plates away from each other, and the heat conducting columns are inserted into the corresponding communication slots. A middle plate is arranged inside the inner cavity close to the rotating shaft. Connecting rods are symmetrically and hingedly installed on one side of the middle plate, and the ends of the two connecting rods are respectively hingedly installed with the upper and lower heat conducting plates. A pressing linkage member is arranged on one side of the middle plate.

[0011] Preferably, the outer wall of the heat conducting plate is in close contact with the inner wall of the inner cavity, and the outer wall of the heat conducting column is in close contact with the inner wall of the communication slot. The materials of the heat conducting plate, the heat conducting column, the rotating heat dissipation fin, the fixed heat dissipation fin, the first housing, and the second housing are all made of heat conducting materials. Second springs are symmetrically installed between the upper and lower heat conducting plates.

[0012] Preferably, the pressing linkage member includes a moving groove formed inside the rotating heat dissipation fin. The moving groove is located on the side of the inner cavity close to the rotating shaft. A rod groove is formed between the moving groove and the inner cavity. A pressure receiving plate is movably installed inside the moving groove. A plug rod is installed between the pressure receiving plate and the middle plate. An extrusion plate is arranged on the side of the pressure receiving plate away from the inner cavity. Third springs are symmetrically installed between the pressure receiving plate and the extrusion plate. A sliding groove is formed inside the rotating shaft. The sliding groove communicates with each moving groove. A sliding plate is slidably installed inside the sliding groove. The sliding plate is fixedly connected to each extrusion plate. Wedge blocks are installed at both ends of the sliding plate. A pressing driving member is arranged inside the end block.

[0013] Preferably, the pressing driving member includes an inner groove formed inside the end block. The inner groove is communicated with the positioning groove. An inner plate is movably installed inside the inner groove. A top rod is fixedly installed on the side of the inner plate close to the rotating shaft. One end of the top rod penetrates into the sliding groove. A top ball is fixedly installed at one end of the top rod. The outer wall of the top ball contacts the inclined surface of the wedge block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the present invention, when the first shell and the second shell are combined into the outer shell mechanism, the rotating heat dissipation fin is installed on the outer wall of the second shell, and the clamping block is inserted into the clamping groove to clamp and fix the first shell and the second shell, which is convenient for disassembly, installation and maintenance. When two first shells are combined into the outer shell mechanism, the rotating heat dissipation fin is installed on the outer wall of the first shell, doubling the number of fixed heat dissipation fins and rotating heat dissipation members on the outer shell mechanism, improving the heat dissipation effect; (2) In this invention, the rotating heat dissipation fins are equidistantly installed on the rotating shaft, and the fixed heat dissipation fins and the rotating heat dissipation fins are arranged alternately, reducing the wind resistance, facilitating the passage of air for heat dissipation, and at the same time facilitating the rotation of the rotating heat dissipation fins to be received between two adjacent fixed heat dissipation fins, facilitating the contact of the rotating heat dissipation fins with the outer wall of the second shell and the outer wall of the first shell respectively in two cases, facilitating heat dissipation; (3) In this invention, end blocks are installed at both ends of the rotating shaft, and two positioning grooves are symmetrically formed on the end blocks. After the position of the rotating heat dissipation fin is determined, the positioning block on the connecting plate can be inserted into the positioning groove on the side of the end block close to the first shell, facilitating the locking of the rotating heat dissipation fin and facilitating installation; (4) After the positioning block is inserted into the positioning groove, the top ball is pushed to generate pressure on the inclined surface of the wedge block, pushing the extrusion plate to move towards the pressure receiving plate, causing the third spring to be compressed. Under the elastic force of the third spring, the middle plate makes the heat conducting column close to the first shell through the connecting rod, ensuring the heat conduction effect of the contact between the rotating heat dissipation fin and the first shell, and improving the heat dissipation effect on the inductor. Description of the Drawings

[0015] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the accompanying drawings: Figure 1 is a schematic structural diagram of the ultra-thin and extra-large current copper-magnetic co-fired power inductor of the present invention; Figure 2 is a schematic structural diagram of the housing mechanism composed of the first housing and the second housing of the present invention; Figure 3 is a schematic structural diagram of the housing mechanism composed of two second housings of the present invention; Figure 4 is a schematic structural diagram of the heat dissipation housing of the present invention; Figure 5 is a schematic structural diagram of the second housing of the present invention; Figure 6 is a schematic structural diagram of the first housing of the present invention; Figure 7 is a schematic structural diagram of the positioning self-locking member of the present invention; Figure 8 is a schematic structural diagram of the rotating heat dissipation member of the present invention; Figure 9 is a schematic structural diagram of the pressing heat dissipation member of the present invention; Figure 10 For the present invention Figure 9 The enlarged view of the structure at A in; Figure 11 is a schematic structural diagram of the pressing drive member of the present invention; In the figure: 1, magnetic core; 2, copper plate; 3, housing mechanism; 4, heat dissipation housing; 401, first housing; 402, fixed heat dissipation fins; 403, mounting plate; 404, rotating groove; 405, rotating heat dissipation member; 4051, rotating shaft; 4052, limiting plate; 4053, rotating heat dissipation fins; 4054, clamping block; 4055, end block; 4056, positioning groove; 406, positioning self-locking member; 4061, moving groove; 4062, moving plate; 4063, connecting rod; 4064, connecting plate; 4065, positioning block; 4066, first spring; 407, close-fitting heat dissipation member; 4071, internal cavity; 4072, communication groove; 4073, heat conducting plate; 4074, heat conducting column; 4075, second spring; 4078, middle plate; 4079, connecting rod; 408, pressing linkage member; 4081, moving groove; 4082, rod groove; 4083, inserting rod; 4084, pressure receiving plate; 4085, pressing plate; 4086, third spring; 4087, sliding groove; 4088, sliding plate; 4089, wedge-shaped block; 409, pressing driving member; 4091, internal groove; 4092, internal plate; 4093, ejector rod; 4094, ejector ball; 5, mounting housing; 501, second housing; 502, card slot; 6, end slot. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] As Figures 1 - 11 shown, the present invention relates to an ultra-thin and ultra-high-current copper-magnetic co-fired power inductor, which includes a magnetic core 1 and a copper plate 2. The magnetic core 1 is formed by pressing on the outer side of the copper plate 2. Both ends of the copper plate 2 are located on both sides of the magnetic core 1 respectively. A housing mechanism 3 for protecting the magnetic core 1 is arranged on the outer side of the magnetic core 1. The housing mechanism 3 includes a heat dissipation housing 4 and a mounting housing 5. When the heat dissipation housing 4 and the mounting housing 5 are combined into the housing mechanism 3, the installation convenience is high. When two heat dissipation housings 4 are combined into the housing mechanism 3, the heat dissipation efficiency is high.

[0019] The heat dissipation housing 4 includes a first housing 401. Fixed heat dissipation fins 402 are equidistantly installed on both the upper and lower sides of the first housing 401. A rotating heat dissipation member 405 for adjusting the heat dissipation efficiency is provided at the end of the fixed heat dissipation fin 402. Mounting plates 403 are symmetrically installed on both sides of the first housing 401. The two first housings 401 are connected and fixed through the mounting plates 403 and bolts. The mounting housing 5 includes a second housing 501. Card slots 502 are equidistantly opened on both the upper and lower sides of the second housing 501. The first housing 401 and the second housing 501 are snap - connected and fixed through the card slots 502. End slots 6 are opened at one end of the first housing 401 and one end of the second housing 501. Both ends of the copper plate 2 pass through to the outside of the housing mechanism 3 through the two end slots 6.

[0020] The rotating heat dissipation member 405 includes a rotating shaft 4051. Rotating heat dissipation fins 4053 are equidistantly installed on the rotating shaft 4051. A heat - adhering dissipation member 407 is arranged inside the rotating heat dissipation fin 4053. The rotating heat dissipation fins 4053 and the fixed heat dissipation fins 402 are arranged in an alternating manner. End blocks 4055 are symmetrically and fixedly installed at both ends of the rotating shaft 4051. Two positioning slots 4056 are symmetrically opened on the side of the end block 4055 away from the rotating shaft 4051. Positioning self - locking members 406 are installed on both sides of the first housing 401. The positioning self - locking members 406 are used to snap - connect and fix the rotating heat dissipation fins 4053. A clamping block 4054 is fixedly installed at the end of the rotating heat dissipation fin 4053 away from the rotating shaft 4051. When the first housing 401 and the second housing 501 are combined into the housing mechanism 3, the rotating heat dissipation fins 4053 are installed on the outer wall of the second housing 501, so that the clamping block 4054 is snapped into the card slot 502 to snap - connect and fix the first housing 401 and the second housing 501, which is convenient for disassembly, installation and maintenance. When the two first housings 401 are combined into the housing mechanism 3, the rotating heat dissipation fins 4053 are installed on the outer wall of the first housing 401, doubling the number of fixed heat dissipation fins 402 and rotating heat dissipation members 405 on the housing mechanism 3 and improving the heat dissipation effect. The rotating shaft 4051 is rotatably installed inside the rotating slot 404. The rotating slot 404 is opened at one end of the fixed heat dissipation fin 402 away from the end slot 6. Limiting plates 4052 are symmetrically arranged on both sides of the fixed heat dissipation fin 402. The limiting plates 4052 are fixedly installed on the rotating shaft 4051. Rotating heat dissipation fins 4053 are equidistantly installed on the rotating shaft 4051. The fixed heat dissipation fins 402 and the rotating heat dissipation fins 4053 are arranged in an alternating manner, reducing wind resistance, facilitating the passage of air for heat dissipation, and at the same time facilitating the rotating heat dissipation fins 4053 to rotate and be received between two adjacent fixed heat dissipation fins 402, which is convenient for the rotating heat dissipation fins 4053 to contact the outer wall of the second housing 501 and the outer wall of the first housing 401 respectively in two cases, facilitating heat dissipation.

[0021] The positioning and self-locking member 406 includes moving grooves 4061 symmetrically formed inside both sides of the first housing 401. A moving plate 4062 is movably installed inside the moving grooves 4061. Connecting rods 4063 are installed on one side of the two moving plates 4062 away from each other. The end of the connecting rod 4063 penetrates to the outside of the first housing 401, and a connecting plate 4064 is fixedly installed at the end of the connecting rod 4063. Positioning blocks 4065 are installed at both ends of the connecting plate 4064. The positioning blocks 4065 correspond to the positioning grooves 4056 on the side of the end block 4055 close to the first housing 401. A handle is installed on the connecting plate 4064. First springs 4066 are symmetrically installed on one side of the moving plate 4062 close to the connecting plate 4064. One end of the first spring 4066 is fixedly connected to the inner wall of the moving groove 4061. End blocks 4055 are installed at both ends of the rotating shaft 4051, and two positioning grooves 4056 are symmetrically formed on the end blocks 4055. After the position of the rotating heat dissipation fin 4053 is determined, the positioning blocks 4065 on the connecting plate 4064 can be inserted into the positioning grooves 4056 on the side of the end block 4055 close to the first housing 401, which is convenient for locking the rotating heat dissipation fin 4053 and convenient for installation.

[0022] The heat dissipation member in close contact 407 includes an internal cavity 4071 formed inside the rotating heat dissipation fin 4053. Communication grooves 4072 are formed on both the upper and lower sides of the internal cavity 4071. Two heat conducting plates 4073 are movably installed inside the internal cavity 4071. Heat conducting columns 4074 are equidistantly installed on one side of the upper and lower heat conducting plates 4073 away from each other. The heat conducting columns 4074 are inserted into the corresponding communication grooves 4072. A middle plate 4078 is arranged inside one end of the internal cavity 4071 close to the rotating shaft 4051. Link rods 4079 are symmetrically and hingedly installed on one side of the middle plate 4078. The ends of the two link rods 4079 are respectively hingedly installed with the upper and lower heat conducting plates 4073. A pressing linkage member 408 is arranged on one side of the middle plate 4078. The outer wall of the heat conducting plate 4073 is in close contact with the inner wall of the internal cavity 4071, and the outer wall of the heat conducting column 4074 is in close contact with the inner wall of the communication groove 4072. The materials of the heat conducting plate 4073, the heat conducting column 4074, the rotating heat dissipation fin 4053, the fixed heat dissipation fin 402, the first housing 401, and the second housing 501 are all made of heat conducting materials. Second springs 4075 are symmetrically installed between the upper and lower heat conducting plates 4073.

[0023] The pressing linkage 408 includes a moving groove 4081 formed inside the rotating heat dissipation fin 4053. The moving groove 4081 is located on the side of the inner cavity 4071 close to the rotating shaft 4051. A rod groove 4082 is formed between the moving groove 4081 and the inner cavity 4071. A pressure-receiving plate 4084 is movably installed inside the moving groove 4081. An insertion rod 4083 is installed between the pressure-receiving plate 4084 and the middle plate 4078. A pressing plate 4085 is arranged on the side of the pressure-receiving plate 4084 away from the inner cavity 4071. Third springs 4086 are symmetrically installed between the pressure-receiving plate 4084 and the pressing plate 4085. A sliding groove 4087 is formed inside the rotating shaft 4051. The sliding groove 4087 communicates with each moving groove 4081. A sliding plate 4088 is slidably installed inside the sliding groove 4087. The sliding plate 4088 is fixedly connected to each pressing plate 4085. Wedge-shaped blocks 4089 are installed at both ends of the sliding plate 4088. A pressing driving member 409 is arranged inside the end block 4055. The pressing driving member 409 includes an inner groove 4091 formed inside the end block 4055. The inner groove 4091 is communicated with the positioning groove 4056. An inner plate 4092 is movably installed inside the inner groove 4091. A top rod 4093 is fixedly installed on the side of the inner plate 4092 close to the rotating shaft 4051. One end of the top rod 4093 penetrates into the sliding groove 4087. A top ball 4094 is fixedly installed at one end of the top rod 4093. The outer wall of the top ball 4094 contacts the inclined surface of the wedge-shaped block 4089. After the positioning block 4065 is inserted into the positioning groove 4056, the top ball 4094 is pushed to generate pressure on the inclined surface of the wedge-shaped block 4089, and the pressing plate 4085 is pushed to move towards the pressure-receiving plate 4084 side, so that the third spring 4086 is compressed. Under the elastic force of the third spring 4086, the middle plate 4078 makes the heat conduction column 4074 close to the first housing 401 through the connecting rod 4079, ensuring the contact heat conduction effect between the rotating heat dissipation fin 4053 and the first housing 401, and improving the heat dissipation effect of the inductor.

[0024] Working principle: When the current flow in the scenario where the inductor is used is moderate and the required heat dissipation efficiency does not need to be too large, in order to facilitate the disassembly and assembly of the housing mechanism 3, the first housing 401 and the second housing 501 are selected and assembled into the housing mechanism 3. The first housing 401 and the second housing 501 are sleeved on the outside of the magnetic core 1, so that both ends of the copper plate 2 pass through the two end slots 6. Then, the connecting plates 4064 on both sides of the first housing 401 are pulled outwards, the upper and lower positioning blocks 4065 are disengaged from the positioning slots 4056, and the rotating heat dissipation fins 4053 are rotated towards the second housing 501 side, so that the locking blocks 4054 are snapped into the card slots 502 on the second housing 501, and the side wall of the locking block 4054 contacts the side wall of the card slot 502 away from the first housing 401 to clamp and fix the first housing 401 and the second housing 501. Then, the positioning blocks 4065 are snapped into the positioning slots 4056 on the side of the end block 4055 close to the first housing 401 to clamp and lock the rotating heat dissipation fins 4053; When the current in the scenario where the inductor is used is extremely large, the required heat dissipation efficiency needs to be improved. During assembly, two first housings 401 are used to form the housing mechanism 3. The two first housings 401 are sleeved on the outside of the magnetic core 1, so that both ends of the copper plate 2 pass through the two end slots 6. Then, the connecting plates 4064 on both sides of the first housing 401 are pulled outwards, so that the two positioning blocks 4065 are disengaged from the positioning slots 4056, and the upper and lower rotating heat dissipation fins 4053 are respectively rotated towards the upper and lower sides of the first housing 401 until the outer walls of the rotating heat dissipation fins 4053 contact the outer walls of the first housing 401. Then, the positioning blocks 4065 are snapped into the positioning slots 4056 on the side of the end block 4055 close to the first housing 401 to clamp and lock the rotating heat dissipation fins 4053. Then, they are connected and fixed through bolts and the mounting plates 403 on the two first housings 401, which plays a role in doubling the number of fixed heat dissipation fins 402 and rotating heat dissipation parts 405 on the housing mechanism 3, thereby improving the heat dissipation effect on the inductor; When the positioning block 4065 is inserted into the positioning slot 4056, it pushes the inner plate 4092 inside the inner slot 4091 to move, and then causes the top ball 4094 to move and exert pressure on the inclined surface of the wedge block 4089, pushing the sliding plate 4088 towards the pressure receiving plate 4084, compressing the third spring 4086. Under the elastic force of the third spring 4086, the middle plate 4078 presses the heat conducting plate 4073 through the connecting rod 4079, so that the heat conducting column 4074 can be in close contact with the outer wall of the first housing 401. The outer wall of the heat conducting plate 4073 is in close contact with the inner wall of the inner cavity 4071, and the outer wall of the heat conducting column 4074 is in close contact with the inner wall of the communication groove 4072. The materials of the heat conducting plate 4073, the heat conducting column 4074, the rotating heat dissipation fin 4053, the fixed heat dissipation fin 402, the first housing 401, and the second housing 501 are all made of heat conducting materials, so as to ensure the heat conduction effect of the contact between the rotating heat dissipation fin 4053 and the first housing 401 and improve the heat dissipation effect of the inductor.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The ultra-thin and extra-large current copper-magnetic co-fired power inductor comprises a magnetic core (1) and a copper plate (2), and is characterized in that: The magnetic core (1) is formed by pressing on the outer side of the copper plate (2). Both ends of the copper plate (2) are respectively located on both sides of the magnetic core (1). An outer shell mechanism (3) for protecting the magnetic core (1) is arranged on the outer side of the magnetic core (1). The outer shell mechanism (3) includes a heat dissipation shell (4) and a mounting shell (5). When the heat dissipation shell (4) and the mounting shell (5) are combined into the outer shell mechanism (3), the installation convenience is high. When two heat dissipation shells (4) are combined into the outer shell mechanism (3), the heat dissipation efficiency is high. The heat dissipation shell (4) includes a first shell (401). Fixed heat dissipation fins (402) are equidistantly installed on both the upper and lower sides of the first shell (401). A rotating heat dissipation member (405) for adjusting the heat dissipation efficiency is arranged at the end of the fixed heat dissipation fin (402). Mounting plates (403) are symmetrically installed on both sides of the first shell (401). The two first shells (401) are connected and fixed through the mounting plates (403) and bolts. The mounting shell (5) includes a second shell (501). Card slots (502) are equidistantly opened on both the upper and lower sides of the second shell (501). The first shell (401) and the second shell (501) are clamped and fixed through the card slots (502).

2. The ultra-thin and extra-large current copper-magnetic co-fired power inductor according to claim 1, wherein: End slots (6) are opened at one end of the first shell (401) and one end of the second shell (501). Both ends of the copper plate (2) pass through to the outside of the outer shell mechanism (3) through the two end slots (6).

3. The ultra-thin and extra-large current copper-magnetic co-fired power inductor according to claim 1, wherein: The rotating heat dissipation member (405) includes a rotating shaft (4051). Rotating heat dissipation fins (4053) are equidistantly installed on the rotating shaft (4051). A close-fitting heat dissipation member (407) is arranged inside the rotating heat dissipation fin (4053). The rotating heat dissipation fins (4053) and the fixed heat dissipation fins (402) are arranged in an alternating manner. End blocks (4055) are symmetrically and fixedly installed at both ends of the rotating shaft (4051). Two positioning slots (4056) are symmetrically opened on the side of the end block (4055) away from the rotating shaft (4051). Positioning self-locking members (406) are installed on both sides of the first shell (401). The positioning self-locking members (406) are used to clamp and fix the rotating heat dissipation fins (4053). A clamping block (4054) is fixedly installed at the end of the rotating heat dissipation fin (4053) away from the rotating shaft (4051).

4. The ultra-thin and extra-large current copper-magnetic co-fired power inductor according to claim 3, wherein: The rotating shaft (4051) is rotatably installed inside a rotating slot (404). The rotating slot (404) is opened at one end of the fixed heat dissipation fin (402) away from the end slot (6). Limiting plates (4052) are symmetrically arranged on both sides of the fixed heat dissipation fin (402). The limiting plates (4052) are fixedly installed on the rotating shaft (4051).

5. The ultra-thin and extra-large current copper-magnetic co-fired power inductor according to claim 3, characterized in that: The positioning and self-locking member (406) includes movable grooves (4061) symmetrically formed in the inner sides of both sides of the first housing (401). A movable plate (4062) is movably installed inside the movable groove (4061). Connecting rods (4063) are installed on the sides of the two movable plates (4062) away from each other. The ends of the connecting rods (4063) penetrate to the outside of the first housing (401), and connecting plates (4064) are fixedly installed at the ends of the connecting rods (4063). Positioning blocks (4065) are installed at both ends of the connecting plate (4064).

6. The ultra-thin and ultra-high current copper-magnetic co-fired power inductor according to claim 5, wherein: The positioning block (4065) corresponds to the positioning groove (4056) on the side of the end block (4055) close to the first housing (401). A handle is installed on the connecting plate (4064). First springs (4066) are symmetrically installed on the side of the movable plate (4062) close to the connecting plate (4064). One end of the first spring (4066) is fixedly connected to the inner wall of the movable groove (4061).

7. The ultra-thin and ultra-high current copper-magnetic co-fired power inductor according to claim 3, characterized in that: The close-fitting heat dissipation member (407) includes an internal cavity (4071) formed in the rotating heat dissipation fin (4053). Communication grooves (4072) are formed on both the upper and lower sides of the internal cavity (4071). Two heat conduction plates (4073) are movably installed inside the internal cavity (4071). Heat conduction columns (4074) are equidistantly installed on the sides of the upper and lower heat conduction plates (4073) away from each other. The heat conduction columns (4074) are inserted into the corresponding communication grooves (4072). A middle plate (4078) is arranged inside one end of the internal cavity (4071) close to the rotating shaft (4051). Link rods (4079) are symmetrically and hingedly installed on one side of the middle plate (4078). The ends of the two link rods (4079) are respectively hingedly installed with the upper and lower heat conduction plates (4073). A pressing linkage member (408) is arranged on one side of the middle plate (4078).

8. The ultra-thin and ultra-high current copper-magnetic co-fired power inductor according to claim 7, wherein: The outer wall of the heat conduction plate (4073) is in close contact with the inner wall of the internal cavity (4071). The outer wall of the heat conduction column (4074) is in close contact with the inner wall of the communication groove (4072). The materials of the heat conduction plate (4073), the heat conduction column (4074), the rotating heat dissipation fin (4053), the fixed heat dissipation fin (402), the first housing (401), and the second housing (501) are all made of heat-conducting materials. Second springs (4075) are symmetrically installed between the upper and lower heat conduction plates (4073).

9. The ultra-thin and extra-large current copper-magnetic co-fired power inductor according to claim 7, wherein: The pressing linkage member (408) includes a moving groove (4081) formed inside the rotating heat dissipation fin (4053). The moving groove (4081) is located on the side of the inner cavity (4071) close to the rotating shaft (4051). A rod groove (4082) is formed between the moving groove (4081) and the inner cavity (4071). A pressure receiving plate (4084) is movably installed inside the moving groove (4081). A plug rod (4083) is installed between the pressure receiving plate (4084) and the middle plate (4078). An extrusion plate (4085) is arranged on the side of the pressure receiving plate (4084) away from the inner cavity (4071). Third springs (4086) are symmetrically installed between the pressure receiving plate (4084) and the extrusion plate (4085). A sliding groove (4087) is formed inside the rotating shaft (4051). The sliding groove (4087) communicates with each moving groove (4081). A sliding plate (4088) is slidably installed inside the sliding groove (4087). The sliding plate (4088) is fixedly connected to each extrusion plate (4085). Wedge-shaped blocks (4089) are installed at both ends of the sliding plate (4088). A pressing driving member (409) is arranged inside the end block (4055).

10. The ultra-thin and ultra-high current copper-magnetic co-fired power inductor according to claim 9, wherein: The pressing driving member (409) includes an inner groove (4091) formed inside the end block (4055). The inner groove (4091) is communicated with the positioning groove (4056). An inner plate (4092) is movably installed inside the inner groove (4091). A push rod (4093) is fixedly installed on the side of the inner plate (4092) close to the rotating shaft (4051). One end of the push rod (4093) penetrates into the sliding groove (4087). A push ball (4094) is fixedly installed at one end of the push rod (4093). The outer wall of the push ball (4094) contacts the inclined surface of the wedge-shaped block (4089).

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